Ultrasonic knife tool bit driving force test fixtureTechnical Field
The invention belongs to the technical field of force measuring tools, and particularly relates to a tool for testing driving force of an ultrasonic knife head.
Background
The ultrasonic knife is medical equipment for cutting and solidifying by utilizing an ultrasonic technology, is widely applied to surgical operations and tumor treatment, has little bleeding during cutting, has little damage to surrounding tissues and is quick to recover after operation, because the ultrasonic knife converts high-frequency electric signals provided by a host machine into ultrasonic signals (mechanical vibration) by a transducer handle, and the high-frequency vibration is used for cutting and hemostasis.
The traditional Chinese patent with publication number CN217424620U discloses an ultrasonic knife head driving force testing tool, wherein one end of a tension sensor is connected to an inner sleeve of an elongated body through a floating connecting piece, the other end of the tension sensor is connected with a fixed connecting piece, and the tension sensor can be used for measuring the drawing force between the inner sleeve and the outer sleeve, so that the detection of the driving force of the knife head is realized;
However, in practical use, the elongated body of the ultrasonic blade does not only have axial driving force, but can release multidirectional driving force, but because the fixing mode only can detect the axial driving force released by the elongated body of the ultrasonic blade, and the driving force in other directions of the elongated body can be transmitted to the sleeve to be absorbed and cannot be detected, the detected value has larger deviation from the actual value, and therefore, the ultrasonic blade head driving force testing tool is provided.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the ultrasonic knife head driving force testing tool.
The technical scheme adopted for solving the technical problems is as follows:
The utility model provides an ultrasonic knife tool bit driving force test fixture, includes the frame, still includes:
The clamping frame is fixed on the flat surface of the frame and has the horizontal opening and closing movement capability, and is used for horizontally fixing and pressing the ultrasonic knife placed on the clamping frame;
The test head is positioned at the tail end of the cutter bar of the ultrasonic cutter and comprises a joint part and an overhead part, wherein the joint part is adapted to the end part of the cutter bar in an openable and closable manner and forms an accommodating space, the overhead part is fixed at the coaxial position of the cutter bar, a three-axis pressure probe array is fixedly arranged in the accommodating space, and the three-axis pressure probe array consists of a first pressure probe, a second pressure probe and a third pressure probe so as to realize contact monitoring of the joint part in the vertical, horizontal and longitudinal directions;
the end frame is fixed at the end part of the clamping frame and is connected with the overhead part through a screw rod and a self-locking nut, and vertical position adjustment of the triaxial pressure probe array is realized.
Further, the clamping frame comprises a sliding rail, a first fork frame is slidably arranged on the sliding rail, a second fork frame is fixedly arranged at the end part of the sliding rail, and the first fork frame can be pushed to the second fork frame by the pushing piece in a pushing mode.
Through the technical scheme, the sliding rail plays a guiding role when the fork frame II slides, the distance between the fork frame I and the fork frame II is pulled open, the fork frame II is fixed and provided with the U-shaped opening with the upward opening, the fork frame I is also provided with the U-shaped opening with the upward opening, the ultrasonic knife can be horizontally lapped in the two U-shaped openings, and the ultrasonic knife is compressed through the translation of the fork frame I, so that the radial quick fixation of the ultrasonic knife is realized.
Further, the pushing and pressing piece is composed of a crank and a push rod, the middle of the crank is hinged to the end of the push rod, a cylinder is hinged to the far end of the push rod, a guide seat is sleeved outside the cylinder and mounted on a sliding rail, the cylinder is detachably connected with a fork frame through a bolt, a limit seat is arranged below the crank, and the limit seat is detachably connected with the crank through a pin rod.
Through the technical scheme, the fork frame II is required to be fixed after the ultrasonic knife is compressed, the ultrasonic knife is prevented from loosening, when the fork frame II is operated, the lower end of the crank is hinged to the frame at the end part of the sliding rail, the upper end of the crank is pushed to horizontally slide the cylinder, the fork frame II can realize that the fork frame is horizontally moved to compress the ultrasonic knife, after the ultrasonic knife is compressed, the limiting hole on the crank is aligned with the transverse hole on the limiting seat, the pin rod can be inserted between the limiting hole and the transverse hole, the fixing of the crank is realized, and then the position locking of the fork frame II is realized.
Further, the joint part comprises a connecting frame, the connecting frame is hinged with a first holding clamp and a second holding clamp, an arc-shaped inner wall matched with the cutter bar is formed at one end, close to the cutter bar, of the first holding clamp and the second holding clamp, a clamp is arranged on the connecting frame and located at a vertical position to tightly press the first holding clamp and the second holding clamp at the end of the cutter bar, and the clamp can swing ninety degrees to release the first holding clamp and the second holding clamp.
Through above-mentioned technical scheme, utilize to embrace to press from both sides first and embrace to press from both sides second and establish in cutter arbor one end along radial cover to utilize the clamping to hold tightly and guarantee that the contact is stable, in the test process, can be when the cutter arbor along radial displacement joint portion can synchronous movement, and when dismantling, the clamping can rotate ninety degrees around the rotation center at left side top, clamping can swing to embrace to press from both sides first and embrace to press from both sides two top, accomplishes and breaks away from the release, split action is swift.
Further, the through hole of the blade groove of the connecting frame is provided with a inserted bar, the through hole of the blade groove corresponding to the first holding clamp and the second holding clamp is provided with a semicircular groove, the semicircular grooves can form a right circular jack, and the inserted bar can penetrate through the jack to be inserted into the through hole of the blade groove in a vertical position displacement mode.
Through the technical scheme, the blade groove of the cutter bar is the rectangular groove along the axial direction, a circular through hole is formed in the groove bottom position to avoid cracking of the cutter bar, the first clamping device and the second clamping device are sleeved at the end part of the cutter bar, the through hole position of the blade groove is inserted from top to bottom through the inserted rod, and meanwhile the first clamping device and the second clamping device are clamped through the semicircular groove, so that the first clamping device and the second clamping device are prevented from sliding along the axial direction of the cutter bar, and the measurement accuracy defect caused by relative displacement is avoided.
Further, the joint part further comprises a transmission part, the transmission part is provided with a longitudinal sliding frame, the longitudinal sliding frame is located at a transverse opening and is provided with a rocker arm in a sliding mode, one end of the rocker arm, far away from the longitudinal sliding frame, is rotationally connected with a connecting frame, the top end of the inserting rod is fixedly connected with the bottom end of the longitudinal sliding frame, the clamp is located at the position where the rocker arm is rotationally connected with the connecting frame, a connecting shaft is coaxially arranged at the middle part of the connecting shaft in a coiling mode, a middle shaft is rotationally installed at the position, close to the connecting shaft, of the rocker arm, and a bushing sleeved on the outer side of the steel rope is installed at the middle part of the middle shaft.
Through the technical scheme, the clamp is rotationally installed through the connecting shaft, the steel rope is wound on the outer side of the connecting shaft anticlockwise, the outer wall of the steel rope is in friction contact with the middle shaft through the bushing, the steel rope is pulled upwards, the clamp can be driven to rotate anticlockwise for ninety degrees to separate from the first clamp and the second clamp, the steel rope rubs the middle shaft to enable the longitudinal sliding frame to be separated from the cutter bar in an ascending mode, and separation driving of the clamp and the inserted rod in different directions but at the same time is completed.
Further, the roller is installed to the one end that is close to linking frame of indulging the sliding frame, linking frame corresponds the gyro wheel position and has seted up indulged the mouth, the axis overlap joint sets up at indulging sliding frame downside middle part, the axis tip rotates installs the stabilizer bar, stabilizer bar keeps away from axis one end and links the frame articulated.
Through above-mentioned technical scheme, the inserted bar needs vertical up-and-down motion, so utilizes the gyro wheel to roll at the mouth of indulging, and the mouth inner wall of indulging can play the guide effect to the frame tip of indulging, and the stabilizer bar can stretch out and draw back and be located the frame both sides of indulging, carries out the support of anti-torsion when indulging the frame goes up, guarantees the gliding vertical stability of indulging the frame.
Further, a penetrating cylinder matched with the steel rope is arranged at the top of the connecting frame, an attraction block is arranged at one end, far away from the connecting shaft, of the steel rope, a sleeve is sleeved outside the attraction block, an electromagnet is arranged at one end, far away from the attraction block, of the sleeve, a top plate is fixedly arranged outside the sleeve, and the top plate is detachably arranged at the top end of the screw rod through a rotary cap on the bottom surface.
Through the technical scheme, the steel rope is guided through the cylinder, the magnetic force generated by electrifying the electromagnet is utilized to drag the attraction block, traction power is provided for the steel rope, the joint part can be quickly detached at the installation and debugging stage, in the detection, the joint part can be separated from the cutter bar by electrifying the electromagnet, the condition that the cutter blade on the cutter bar falls off is simulated, and whether the ultrasonic cutter with the cutter blade falling off detection function is normal is tested.
Further, the overhead part is provided with a vertical light surface hole corresponding to the screw rod, one end of the overhead part, which is positioned in the accommodating space, is provided with an installing table, the pressure probes I, the pressure probes II and the pressure probes II are fixedly installed on the installing table, and the overhead part is sleeved with the installing table, so that an annular gap is formed outside the overhead part.
Through the technical scheme, the overhead part can slide up and down along the screw rod, the fixing of cooperation clamping frame, the ultrasonic knife is because the model is different, the cutter arbor can be by the high difference after pressing from both sides tightly, after the joint part is fixed with the cutter arbor, the height of overhead part needs to be adjusted in order to guarantee that triaxial pressure probe array arranges in the accommodation space in the middle, guarantee that pressure probe one, pressure probe two and pressure probe three all can contact accommodation space inner wall, carry out diversified detection, for preventing to reduce the interference, establish the cover at overhead part middle section and leave annular gap, can form wholly with overhead part before the joint part is installed the cutter arbor, avoid scattered inconvenient installation, also can prevent that the part from losing, after the joint part is installed the cutter arbor, annular gap can avoid fixed overhead part to influence joint part along with the cutter arbor free movement, prevent that detected data is less than actual value.
Further, the first pressure probe comprises an outer ring and a pressure sensor which are coaxially arranged, a compensation gap is formed between the outer ring and the pressure sensor, a support frame is arranged in the compensation gap and is in direct contact with the inner wall of the outer ring and the outer wall of the pressure sensor, a sliding bearing is arranged at one end of the pressure sensor, which is positioned at the inner side of the outer ring, and the second pressure probe and the third pressure probe are identical in structure with the first pressure probe except for the installation position.
Through above-mentioned technical scheme, the strut is elastic structure, can compress deformation, and cooperation compensation clearance makes pressure sensor two degrees of freedom slip in the outer loop, makes pressure sensor can detect the perpendicular force that acts on the pressure sensor terminal surface, and is on a parallel with the force of pressure sensor terminal surface, can be offset by pressure sensor's slip, guarantees the installation stability in the long-time detection to can reduce the influence of multi freedom's removal to the detection precision through adaptive horizontal slip.
The beneficial effects of the invention are as follows:
(1) According to the invention, through the design of the test head, the joint part replaces the blade and the blade fastener to be arranged at the end part of the cutter bar as a load, the joint part is driven by the cutter bar to move at multiple angles through radial and axial locking, a real use scene is simulated, the driving force of the cutter bar at the joint part is converted into displacement of the joint part, and then the displacement is transmitted to the position of the triaxial pressure probe array to be converted into an electric signal, so that the multidirectional driving force of the ultrasonic knife to the cutter head can be detected, and the detection result is closer to the actual output value of the ultrasonic knife;
(2) According to the invention, through the optimization of the test head, the flexible steel rope is used as the unlocking transmission member, the normal running and precision range of the driving force test are not affected in the test process, and when the anti-drop function of the ultrasonic knife is detected, the radial and axial unlocking of the joint part can be simultaneously carried out by pulling the steel rope, so that the joint part can be separated from the knife bar in the test process, the unexpected situation that the knife blade and the knife blade fastener drop off in the use is truly simulated, and the practicability is stronger.
Drawings
FIG. 1 is a first view block diagram of the present invention;
FIG. 2 is an enlarged schematic view of the middle structure of the frame of the present invention;
FIG. 3 is a schematic illustration of the assembly between the holder, test head and ultrasonic blade of the present invention;
FIG. 4 is a second schematic illustration of the assembly between the holder, test head and ultrasonic blade of the present invention;
FIG. 5 is a schematic view of the structure of the test head of the present invention in an extended state;
FIG. 6 is a schematic view of the structure of the test head of the present invention in a contracted state;
FIG. 7 is a schematic diagram of a disassembly of the test head of the present invention;
FIG. 8 is a schematic view of the attachment, drive, clip and latch of the test head of the present invention;
FIG. 9 is a schematic diagram of the splitting of the test head of the present invention in a contracted state;
FIG. 10 is a schematic view of the structure between the link, drive member and transmission member and at a in accordance with the present invention;
fig. 11 is a schematic cross-sectional view of a pressure probe one of the present invention.
The ultrasonic testing device comprises the following components of 1, an ultrasonic knife, 11, a knife bar, 12, a blade groove, 2, a clamping frame, 21, a fork frame I, 22, a fork frame II, 23, a sliding rail, 24, a pushing part, 25, a limiting seat, 3, a frame, 4, a joint part, 41, a connecting frame, 411, a longitudinal opening, 412, a supporting lug, 413, a hinging seat, 414, a switching hole, 42, a clamping I, 421, a clamping hole, 422, a pin column, 43, a clamping II, 44, a clamping clip, 441, a connecting shaft, 45, a inserting rod, 46, a transmission part, 461, a longitudinal sliding frame, 462, a rocker arm, 463, a middle shaft, 464, a pair of arms, 465, a stabilizing rod, 466, a transverse opening, 467, a roller, 468, a bushing, 47, a steel rope, 471, a sleeve, 472, a suction block, 473, an electromagnet, 48, a containing space, 49, a jack, 5, an overhead part, 51, a mounting table, 52, an annular gap, 6, an end frame, 61, a screw, 62, 63, a rotary cap, 7, a pressure probe, a pressure cap, 71, a rocker arm, 463, a pressure sensor, a bearing 75, a pressure sensor, a bearing bracket 75, a bearing bracket 8, a pressure sensor and a bearing bracket 8.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-11, the embodiment provides a tool for testing driving force of an ultrasonic knife head, which comprises a frame 3, wherein the frame 3 is formed by combining aluminum alloy rods, and a flat substrate is arranged in the middle part and is used for mounting other components;
In use, in order to solve the problems of the existing equipment, the multidirectional driving force of the ultrasonic knife 1 is respectively measured, the axial driving force improves the cutting capability, and the radial driving force is used for enabling the blade to move at multiple angles to crush the peripheral tissues of the blade, so that the multi-angle driving force has the expected effect and the minimum index, and a specific configuration is provided for ensuring that the detection is closer to the actual value:
Referring to fig. 1 and 2, the clamping frame 2 is fixed on a flat surface in the middle of the frame 3, a plurality of clamping frames 2 can be arranged side by side, a plurality of detection stations are provided, one ultrasonic knife 1 can be assembled and disassembled during detection, detection time is fully utilized, invalid waiting time during detection is reduced, the clamping frame 2 has horizontal opening and closing movement capability, the ultrasonic knife 1 can be placed during opening, the ultrasonic knife 1 is pressed during closing, the ultrasonic knife 1 is fixed at a horizontal position, and driving force detection is waited;
With respect to the test head, referring to fig. 3,5, 6 and 7, the test head is located at the end of the cutter bar 11 of the ultrasonic blade 1, wherein the joint part 4 is adapted to the end of the cutter bar 11 in an openable manner, and can be fixedly connected with the cutter bar 11 instead of a blade as the load of the cutter bar 11, a more realistic working scene is simulated, and an accommodating space 48 is formed so as to install a driving force detection sensor, in particular, the overhead part 5 is fixed at the coaxial position of the cutter bar 11, and a triaxial pressure probe array is fixedly installed in the accommodating space 48, the triaxial pressure probe array is composed of a pressure probe one 7, a pressure probe two 8 and a pressure probe three 9, and the pressure probe one 7, the pressure probe two 8 and the pressure probe three 9 respectively contact the inner wall of the accommodating space 48, and detect driving force conditions in the left-right direction, the front-rear direction and the vertical direction respectively, compared with detecting only the driving force of the axial direction of the cutter bar 11, the detection of the multi-angle driving force is more comprehensive and close to the reality;
With respect to the end frame 6, referring to fig. 4 and 5, the end frame 6 is fixed at the end of the clamping frame 2, specifically, near one end of the cutter bar 11, the end frame 6 is connected with the overhead portion 5 through a screw 61 and a self-locking nut, the self-locking nuts on the upper side and the lower side of the overhead portion 5 are unscrewed, so that the height of the overhead portion 5 is far away from the overhead portion 5, the vertical position of the triaxial pressure probe array is adjusted, then the fixing can be completed by pressing the overhead portion 5 by reversing the self-locking nut, the self-locking nut is coaxial with the cutter bar 11, and the centering contact is completed by positive and opposite insertion with the joint portion 4.
In a further embodiment, referring to fig. 3 and 4, the clamping frame 2 includes a sliding rail 23, a first fork frame 21 is slidably mounted on the sliding rail 23, a distance between the first fork frame 21 and a second fork frame 22 is pulled open, the sliding rail 23 plays a guiding role when the first fork frame 21 slides, a second fork frame 22 is fixedly mounted at an end of the sliding rail 23, the first fork frame 21 can be pushed and pushed towards the second fork frame 22 by a pushing piece 24, the second fork frame 22 is fixed and provided with a U-shaped opening with an upward opening, the first fork frame 21 is also provided with a U-shaped opening with an upward opening, the ultrasonic knife 1 can be horizontally put on the two U-shaped openings to perform centering limiting, and then the ultrasonic knife 1 is compressed by translational movement of the second fork frame 22, so that the radial quick fixing of the ultrasonic knife 1 is realized;
referring to fig. 4, a specific configuration of a driving structure of a fork frame one 21 is disclosed, the pushing and pressing piece 24 is composed of a crank and a push rod, the middle part of the crank is hinged with the end part of the push rod, the far end of the push rod is hinged with a cylinder, the lower end of the crank is hinged on a rack 3 at the end part of a slide rail 23, the upper end of the crank is pushed to horizontally slide the cylinder, a guide seat is sleeved outside the cylinder and is arranged on the slide rail 23, the cylinder is detachably connected with the fork frame one 21 through a bolt, a limit seat 25 is arranged below the crank, the limit seat 25 is detachably connected with the crank through a pin rod, the fork frame two 22 can be horizontally moved to press the ultrasonic knife 1, after the ultrasonic knife is pressed, a limit hole on the crank is aligned with a transverse hole on the limit seat 25, the pin rod can be inserted between the limit hole and the transverse hole, the crank is fixed, the position locking of the fork frame two 22 is further realized, the crank and the push rod can be replaced with a hydraulic cylinder which is horizontally arranged, the automatic expansion and limit of the fork frame one 21 can be operated, but the automatic hydraulic cylinder operation cost is faster, the additional hydraulic driving equipment is needed, the device can be replaced with a higher driving force, and the fork frame one can be driven by a linear power source and the self-locking device can be replaced.
In a further embodiment, referring to fig. 7 and 8, in order to realize the rapid disassembly and assembly of the joint part 4 and the cutter bar 11, a specific configuration is provided, the joint part 4 comprises a connecting frame 41, a connecting hole 414 is formed in the vertical direction of the middle part of the connecting frame 41, referring to fig. 9, a vertical pin 422 is arranged at one end of the clamp I42 and the clamp II 43 far away from the cutter bar 11 and is used for hinging with the connecting hole 414, an arc-shaped inner wall matched with the cutter bar 11 is formed at one end of the clamp I42 and the clamp II 43 close to the cutter bar 11, a cylindrical-like tubular structure can be formed when the clamp I42 and the clamp II 43 are mutually close to each other, a supporting lug 412 is sleeved outside the cutter bar 11 and is arranged at the position above the middle part of the clamp I42 and the clamp II 43, a U-shaped clamping 44 is rotatably arranged at the middle part of the supporting lug 412, the clamping of the clamping 44 is clamped at the outer sides of the clamp I42 and the clamp II 43 from top to bottom, hemispherical protrusions arranged at the two ends of the clamping 44 are used for hinging, and the clamp I42 and the clamp II 43 are provided with a clamping hole 421 matched with the hemispherical clamping hole 421 to ensure that the joint part and the clamp I and the clamp II can be firmly swung to be contacted with the cutter bar 11 in a anticlockwise direction when the clamp I and the clamp II 43 are swung;
However, after coaxial sleeve is carried out, the axial driving force of the cutter bar 11 can be transmitted only by using the friction force between the first holding clamp 42 and the second holding clamp 43 and the outer wall of the cutter bar 11, once coaxial sliding occurs, the driving force transmission loss reduces the detection precision, referring to fig. 8 and 9, the blade groove 12 of the cutter bar 11 is a rectangular groove along the axial direction, and a circular through hole is formed in the groove bottom position so as to avoid cracking, therefore, the through hole position of the blade groove 12 of the connecting frame 41 positioned in the cutter bar 11 is provided with an inserting rod 45, the inserting rod 45 is a cylinder with a vertical axial line, after the first holding clamp 42 and the second holding clamp 43 are sleeved at the end part of the cutter bar 11, a semicircular groove is formed in the position of the first holding clamp 42 and the second holding clamp 43 corresponding to the through hole position of the blade groove 12, so that after the first holding clamp 42 and the second holding clamp 43 are folded, the two semicircular grooves can form a circular inserting hole 49, the inserting rod 45 can be displaced in the through hole 49 in the vertical position, and the through hole position of the inserting rod 45 is utilized to be inserted into the through hole position of the blade groove 12 from top to bottom, and simultaneously, the relative displacement of the cutter bar 43 along the axial direction is prevented from being caused by the fact that the first holding clamp 43 and the opposite clamping clamp 43 and the second holding clamp 43 are clamped and the opposite to have relative displacement along the axial direction, and the axial displacement;
The clamping 44 is matched with the clamping first 42 and the clamping second 43 for axial fixation, the inserting rod 45 is matched with the clamping first 42 and the clamping second 43 for radial fixation, the multidirectional driving force of the cutter bar 11 can be completely transmitted to the joint part 4, the joint part 4 moves at multiple angles relative to the overhead part 5, the three-axis pressure probe array can be converted into an electric signal of the three-axis pressure probe array, detection of the multi-angle driving force is completed, attention is paid, in order to avoid the influence of the assembly gap between the three-axis pressure probe array and the inner wall of the accommodating space 48 on the displacement and the electric signal, an interference mounting mode is adopted, and in particular, the inner diameter of the accommodating space 48 is reduced, the height of the accommodating space 48 is smaller than the distance between the three 9 end surfaces of the upper pressure probe and the lower pressure probe, the depth of the accommodating space 48 is smaller than the distance between the three 9 end surfaces of the two pressure probes, namely, when the clamping first 42 and the clamping second 43 are mutually close to each other and are pressed by the clamping 44, the inner wall of the clamping first 42 and the clamping second 43 can not influence the three-axis pressure probe array on the displacement and the electric signal, the pre-measuring force can be directly applied to the inner wall of the accommodating space array as an experiment space, and the pre-measuring gap can be eliminated after the three-axis pressure probe array is tightly assembled, and the pre-measuring gap can be directly used as an experimental space, and the pre-measurement gap can be directly eliminated.
Referring to fig. 8 and 10, there is provided a specific driving structure of the clip 44 and the insert rod 45 to drive the clip 44 to rotate counterclockwise and the insert rod 45 to move upward, the joint 4 further includes a driving member 46, the driving member 46 has a longitudinal sliding frame 461, the longitudinal sliding frame 461 is a long strip structure, and the insert rod 45 is fixed at the bottom end of the longitudinal sliding frame 461, a transverse opening 466 is provided at the position of the longitudinal sliding frame 461 where the insert rod 45 is mounted for sliding connection with the upper end of the rocker arm 462, an assembly hole is provided at one end of the rocker arm 462 away from the longitudinal sliding frame 461 for fitting around the lug 412 to be connected with the link 41, the clip 44 is coaxially provided at the rotational connection position of the rocker arm 462 and the link 41 with a link 441, the lug 412 is designed in a hollow through-hole shape to mount the link 441, a steel wire 47 is wound around the middle of the link 441, the steel wire 47 is wound around the outside of the link 441 counterclockwise, a shorter auxiliary arm 464 is protruded near the link 441, the auxiliary arm 464 is rotatably provided with a middle shaft 463, the middle shaft 463 is lapped below the longitudinal sliding frame 461, the middle part of the middle shaft 463 is provided with a bush 468 sleeved outside the steel rope 47, the inner wall of the bush 468 is in friction contact with the outer wall of the steel rope 47, thus, when the clamp 44 is required to be driven to rotate anticlockwise and the inserted link 45 is upward, the clamp 44 can be driven to rotate anticlockwise for ninety degrees to separate from the clamp one 42 and the clamp two 43 only by pulling the steel rope 47, meanwhile, the steel rope 47 is driven to move upward by friction force between the steel rope 47 and the bush 468 to drive the middle shaft 463 to move upward, the longitudinal sliding frame 461 drives the inserted link 45 to move upward and separate from the cutter bar 11, because the steel rope 47 and the bush 468 are in friction contact, the steel rope 47 can be wound for a plurality of circles outside the connecting shaft 441, and enough steel rope 47 is reserved below the middle shaft 463, so that the driving action of the clamp 44 and the inserted link 45 can be completed by enough length of the steel rope 47, the steel cord 47 is prevented from being completely straightened before the clip 44 swings or the plunger 45 is moved up.
The insert rod 45 needs to vertically move up and down, so, referring to fig. 8, a roller 467 is installed at one end of the vertical sliding frame 461 near the connecting frame 41, a vertical opening 411 is opened at the position of the connecting frame 41 corresponding to the roller 467, the roller 467 is installed in the vertical opening 411 and is provided with at least two side walls which can respectively contact the vertical opening 411, the inner wall of the vertical opening 411 can play a guiding role on the end part of the vertical sliding frame 461 by utilizing the rolling of the roller 467 in the vertical opening 411, a middle shaft 463 is lapped and arranged at the middle part of the lower side of the vertical sliding frame 461, a clamping groove matched with the middle shaft 463 is arranged at the middle part of the lower side of the vertical sliding frame 461, the middle shaft 463 can be driven to move upwards through a bushing 468 when the steel rope 47, the acting force of the upward movement is transmitted to the middle part of the lower side of the vertical sliding frame 461, meanwhile, a rocker arm 462 can be driven to swing when the middle shaft 463 moves upwards, and rocker arm 462 upper end and longitudinal sliding frame 461 keep away from gyro wheel 467 one end slip overlap joint, alright apply another ascending effort to longitudinal sliding frame 461 tip, two dispersed action points apply ascending effort to longitudinal sliding frame 461 simultaneously, weapon one action point still is located the dead ahead of inserted bar 45, can guarantee to have sufficient driving force to drive inserted bar 45 and go upward, guarantee to break away from smoothly, simultaneously, axis 463 tip rotation installs stabilizer bar 465, stabilizer bar 465 can stretch out and draw back and lie in longitudinal sliding frame 461 both sides, stabilizer bar 465 is kept away from axis 463 one end rotation and is installed articulated seat 413, articulated seat 413 is fixed with even frame 41 middle part lateral wall, stabilizer bar 465 can carry out the support of anti-torsion when longitudinal sliding frame 461 goes upward, guarantee the vertical stability of longitudinal sliding frame 461 slip.
In a further embodiment, referring to fig. 10, a penetrating cylinder matched with the steel rope 47 is installed at the top of the connecting frame 41, the steel rope 47 is guided through the penetrating cylinder, the middle section of the steel rope 47 is prevented from being wound on other parts, a suction block 472 is installed at one end of the steel rope 47 far away from the connecting shaft 441, a sleeve 471 is installed at the outer side of the suction block 472 in a sleeved mode, an electromagnet 473 is installed at one end of the sleeve 471 far away from the suction block 472, the suction block 472 is pulled by magnetic force generated by electrifying the electromagnet 473, pulling power is provided for unlocking the joint part 4 of the steel rope 47, quick detachment of the joint part 4 can be performed in the installation and debugging stages, a top plate 62 is fixedly installed at the outer side of the sleeve 471, an installation position is provided for the sleeve 471, a screw cap 63 is rotatably installed at the top end of the screw 61, quick detachment and fixation can be performed, similarly, the joint part 4 unlocking driving force can be provided by manually pulling the steel rope 47 when needed under the condition that the electromagnet 473 is damaged or the electromagnet 473 is not installed, in the condition, in the detection, whether the ultrasonic knife blade 11 is normally separated from the cutter bar 11 by directly pulling the joint part 4, and the ultrasonic knife bar 11 is normally has the function, and the test blade is normally separated from the knife bar 11.
In a further embodiment, referring to fig. 9, a vertical light surface hole is formed at a position of the overhead part 5 corresponding to the screw 61, the overhead part 5 can slide up and down along the screw 61, and the ultrasonic knife 1 is fixed by the clamping frame 2, because the heights of the knife bars 11 are different after being clamped, after the joint part 4 is fixed with the knife bars 11, the height of the overhead part 5 needs to be adjusted to ensure that the triaxial pressure probe array is centrally arranged in the accommodating space 48, so that the pressure probe one 7, the pressure probe two 8 and the pressure probe three 9 can all contact the inner wall of the accommodating space 48 for multi-azimuth detection, meanwhile, one end of the overhead part 5, which is positioned in the accommodating space 48, is provided with the mounting table 51, the mounting table 51 provides required mounting positions, specifically three directions and seven mounting positions, the four pressure probes 7, 8 and 9 can be installed, the pressure probes 7 and 9 can avoid torsion and even falling of the joint part 4 caused by unbalanced stress, and in order to prevent interference reduction, the connecting frame 41 is sleeved outside the overhead part 5 to form an annular gap 52, the annular gap 52 is arranged to enable the joint part 4 and the overhead part 5 to form a movable whole, the scattered inconvenience in installation and preparation is avoided, the loss of parts can be prevented, after the joint part 4 is installed on the cutter bar 11, the annular gap 52 can prevent the driving force of the cutter bar 11 from being directly transmitted to the fixed overhead part 5 to be offset, and the driving force of the cutter bar 11 is ensured to act on the three-axis pressure probe array only through the joint part 4, so that detected data is prevented from being smaller than an actual value.
In a further embodiment, referring to fig. 11, a specific configuration of a first pressure probe 7 is disclosed, the first pressure probe 7 includes an outer ring 71 and a pressure sensor 72 which are coaxially arranged, a compensating gap 73 is formed between the outer ring 71 and the pressure sensor 72, a supporting frame 74 is installed in the compensating gap 73, the supporting frame 74 is in direct contact with the inner wall of the outer ring 71 and the outer wall of the pressure sensor 72, the supporting frame 74 is of an elastic structure and can be deformed under pressure, the pressure sensor 72 slides in two degrees of freedom in the outer ring 71 in cooperation with the compensating gap 73, the pressure sensor 72 can detect a force acting perpendicularly on the end face of the pressure sensor 72, and a force parallel to the end face of the pressure sensor 72 can be counteracted by the same-direction sliding of the pressure sensor 72, meanwhile, a sliding bearing 75 is installed at one end of the inner side of the outer ring 71, and the second pressure probe 8 and the third pressure probe 9 are completely identical to the first pressure probe 7 except for installation positions, namely, the first pressure probe 7 detects a driving force in the horizontal direction and perpendicular to the axis of a cutter bar 11, and the driving force in the other two directions can counteract the first pressure probe 7 by driving the sliding; the pressure probe II 8 only detects the driving force with the same direction as the axis of the cutter bar 11, the driving force in the other two directions can be counteracted by driving the pressure probe II 8 to slide, the pressure probe III 9 only detects the driving force in the vertical direction and vertical to the axis of the cutter bar 11, the driving force in the other two directions can be counteracted by driving the pressure probe III 9 to slide, the driving force with multiple degrees of freedom of the cutter bar 11 is prevented from acting on the same fixed pressure sensor 72 to generate resultant force, the defect of insufficient detection precision caused by interference of multi-angle driving force is avoided.
Through the above technical scheme, the force acting on the end face of the pressure sensor 72 perpendicularly can be detected by the pressure sensor 72, and the force parallel to the end face of the pressure sensor 72 can be counteracted by the sliding of the pressure sensor 72, so that the stable installation in long-time detection is ensured, and the influence of the movement of multiple degrees of freedom on the detection precision can be reduced through the self-adaptive horizontal sliding.
The working principle of this embodiment is as follows:
the ultrasonic knife 1 is horizontally clamped on the clamping frame 2 in the middle, and the position of the overhead part 5 relative to the screw 61 above the end frame 6 is adjusted to ensure that the overhead part 5 is equal to the knife bar 11 of the ultrasonic knife 1 in height, so that the coaxial arrangement of the triaxial pressure probe arrays (the pressure probe I7, the pressure probe II 8 and the pressure probe III 9) relative to the knife bar 11 is completed;
The first holding clamp 42 and the second holding clamp 43 of the joint part 4 are mutually close, and are held tightly by the clamp 44 and clamped at the end part of the cutter bar 11 of the ultrasonic cutter 1, and then the inserting rod 45 is inserted into the blade groove 12 formed on the cutter bar 11 through the inserting hole 49 formed by the first holding clamp 42 and the second holding clamp 43, so that the joint part 4 can freely move along with the cutter bar 11 and cannot relatively move;
At this time, the triaxial pressure probe array is located in the accommodating space 48 formed by the first holding clamp 42 and the second holding clamp 43, the accommodating space 48 is opened towards the overhead part 5 and is provided with a flat end face and an inner wall, the first pressure probe 7 is directly contacted with the vertical side wall of the accommodating space 48 parallel to the axis of the cutter bar 11, the second pressure probe 8 is directly contacted with the vertical side wall of the accommodating space 48 perpendicular to the axis of the cutter bar 11, the third pressure probe 9 is directly contacted with the horizontal side wall of the accommodating space 48 parallel to the axis of the cutter bar 11, so that when the joint part 4 moves along with the cutter bar 11 at multiple angles, the driving force in the triaxial direction can be collected respectively through the triaxial pressure probe array, and the driving force detection is more comprehensively fitted and practical;
After the driving force detection is finished, the ultrasonic knife 1 does not stop working, the transmission piece 46 is directly pulled by the steel rope 47, the inserting rod 45 is enabled to be separated from the knife bar 11, the clamping 44 swings to loosen the clamping one 42 and the clamping two 43, the joint 4 is separated from the knife bar 11, the situation that the load (the knife blade or the knife fastener) on the knife bar 11 drops is simulated, whether the anti-drop function of the ultrasonic knife 1 is normally started or not is tested (the ultrasonic soft tissue cutting hemostatic equipment of SoniCure independently researched and developed by the ultrasonic high-frequency surgical integrated system ultrasonic knife head of the United states strong ETHICON HAR1120, the Peking Sano micro-medical science and technology Co., ltd, and other equipment has the anti-drop stopping function), if the joint 4 is separated from the ultrasonic knife 1 instantly, the anti-drop function is normal, the arrangement enables the applicability of the driving force test equipment to be stronger, meanwhile, the steel rope 47 can be in a relaxed state during the driving force test of the ultrasonic knife 1, the driving force is prevented from being conducted outwards along the stretched steel rope 47, and the detection precision is ensured.
The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.