Disclosure of Invention
The invention provides an intersecting line auxiliary cutting device, which aims to solve the problems that the efficiency of manually cutting a pipe is low, the numerical control machining and cutting cost is high and the like.
The invention is realized in the following way:
The intersecting line auxiliary cutting device is characterized by comprising a workpiece clamping mechanism for clamping a pipe fitting, a cutting executing mechanism, a rotary driving device and a power supply assembly, wherein the cutting executing mechanism and the rotary driving device are respectively connected with the power supply assembly;
The workpiece clamping mechanism comprises a roller clamp, and the rotary driving device is connected with the roller clamp and is used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate;
the cutting executing mechanism is arranged on one side of the workpiece clamping mechanism and comprises a cutting driving device and a cutting tool bit, wherein the cutting tool bit is connected with the cutting driving device and driven by the cutting driving device to do left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting.
Further, in a preferred embodiment of the present invention, the intersecting line assisted cutting device further includes a frame, the workpiece clamping mechanism is disposed on a base of the frame, and the cutting driving device is disposed on a beam of the frame.
Further, in a preferred embodiment of the present invention, the workpiece clamping mechanism further includes a rack driving mechanism and two roller adjusting devices separately disposed at two ends of the roller fixture, each of the roller adjusting devices includes a gear, and an internal rack and an external rack separately disposed at two sides of the gear in parallel, and the rack driving mechanism is respectively connected with the two internal racks and is used for driving the internal racks to move, so as to drive the gear to rotate and drive the external rack to move along a direction opposite to the moving direction of the internal racks.
Further, in a preferred embodiment of the present invention, the rack driving mechanism includes a screw, a first screw slider and a rocker, the rocker is disposed at one end of the screw, the first screw slider is sleeved on the screw, and the first screw slider can reciprocate along an axial direction of the screw when the screw rotates, two ends of the first screw slider are respectively connected with the internal tooth bar, and the rotation driving device includes two first stepping motors, and the first stepping motors are respectively disposed at two ends of the first screw slider.
Further, in a preferred embodiment of the present invention, the roller fixture includes two driving wheels and two driven wheels symmetrically disposed with respect to the driving wheels, the two driving wheels are respectively connected with the first stepping motor on the same side thereof, and the two driven wheels are respectively connected with the external gear on the same side thereof.
Further, in a preferred embodiment of the present invention, the cutting driving device includes a feeding screw, a second stepping motor, and a second screw slider sleeved on the feeding screw, two ends of the feeding screw are rotatably connected with the cross beam, one end of the feeding screw is further connected with the second stepping motor, and the cutting bit is connected with the second screw slider.
Further, in a preferred embodiment of the present invention, two ends of the feed screw are connected to the frame through a limit switch, respectively.
Further, in a preferred embodiment of the present invention, the cutting bit is a plasma bit, and the plasma bit is detachably connected to the second screw slider through a cutting bit clamping structure.
Further, in a preferred embodiment of the present invention, the intersecting line assisted cutting device further includes a controller and a control panel, wherein the controller is connected to the first stepper motor, the second stepper motor, the control panel and the power supply assembly, respectively.
Further, in a preferred embodiment of the present invention, the controller control panel is provided with at least a reset button for resetting the cutter head to an intermediate position and a pipe size input module for selecting a pipe size.
The beneficial effects of the invention are as follows:
The intersecting line auxiliary cutting device comprises a workpiece clamping mechanism, a cutting executing mechanism, a rotary driving device and a power supply assembly. The workpiece clamping mechanism comprises a roller clamp, and a rotary driving device is connected with the roller clamp and used for driving the roller clamp to rotate so as to drive the pipe fitting to rotate. The cutting executing mechanism comprises a cutting driving device and a cutting tool bit, wherein the cutting tool bit is connected with the cutting driving device and driven by the cutting driving device to do left-right feeding motion along the axial direction of the pipe fitting so as to cut the pipe fitting. According to the automatic cutting device, the roller clamp drives the pipe fitting to rotate, and the cutting driving device drives the combined motion of the left and right feeding motions of the cutting tool bit to automatically cut intersecting lines. Compared with the traditional manual scribing cutting mode, the method has the advantages that the cutting mode is simpler, the efficiency is higher, and the cutting process is more stable and accurate. Compared with the numerical control machining and cutting mode, the cost is lower.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Referring to fig. 1 to 4, the invention provides an intersecting line auxiliary cutting device, which comprises a workpiece clamping mechanism 1 for clamping a pipe fitting 3, a cutting executing mechanism 2, a rotary driving device and a power supply assembly. The cutting executing mechanism 2 and the rotary driving device are respectively connected with a power supply assembly.
Referring to fig. 1 and 2, in this embodiment, the workpiece clamping mechanism 1 includes a roller fixture 11, and the rotation driving device is connected to the roller fixture 11 and is used for driving the roller fixture 11 to rotate, so as to drive the pipe 3 to rotate.
Referring to fig. 1, in this embodiment, the cutting actuator 2 is provided on one side of the workpiece clamping mechanism 1. The cutting actuator 2 comprises a cutting drive and a cutting bit 21. The cutting head 21 is connected with a cutting driving device and driven by the cutting driving device to do left and right feeding motion along the axial direction of the pipe fitting 3 so as to cut the pipe fitting 3.
The roller clamp 11 can drive the pipe fitting 3 to rotate, and the cutting driving device can drive the cutting tool bit 21 to do left and right feeding movement. Corresponding intersecting lines can be automatically cut through the combined movement of the two. Compared with the traditional manual scribing cutting mode, the method has the advantages that the cutting mode is simpler and more efficient, the cutting speed can reach more than 10m/min, and the cutting process is more stable and accurate. Compared with the numerical control machining and cutting mode, the cost is lower.
Referring to fig. 1, in this embodiment, the intersecting line assisted cutting device further includes a frame 4. The workpiece clamping mechanism 1 is arranged on a base 41 of the frame 4, and the cutting driving device is arranged on a beam 42 of the frame 4.
Referring to fig. 1, 3 and 5, in this embodiment, the workpiece clamping mechanism 1 further includes a rack driving mechanism and two roller adjusting devices separately disposed at two ends of the roller clamp 11. Each roller adjusting device comprises a gear 12, an inner tooth bar 13 and an outer tooth bar 14 which are arranged on two sides of the gear in parallel. The rack driving mechanism is respectively connected with the two inner racks 13 and is used for driving the inner racks 13 to move, so as to drive the gear 12 to rotate and drive the outer racks 14 to move along the direction opposite to the moving direction of the inner racks 13.
Referring to fig. 1, in particular, the rack driving mechanism includes a screw 15, a first screw slider 16, and a rocker 17. The rocker 17 is arranged at one end of the screw rod 15. The first screw slider 16 is sleeved on the screw 15, and the first screw slider 16 can reciprocate along the axial direction of the screw 15 when the screw 15 rotates. Both ends of the first screw slider 16 are connected to the internal tooth bars 13, respectively. The rotary drive means comprise two first stepper motors 5. The first stepping motor 5 is respectively arranged at two ends of the first screw rod sliding block 16. When the pipe fittings 3 with different pipe diameters are fixed on the roller clamp 11, the rocker 17 drives the screw rod 15 to rotate, so that the first screw rod sliding block 16 moves linearly along the screw rod 15 and drives the inner rack 13 to slide. Since the inner rack 13 and the outer rack 14 are connected through the gear 12, when the inner rack 13 slides, the outer rack 14 can slide along the direction opposite to the movement direction of the inner rack 13 under the driving of the gear 12, so as to realize the rapid adjustment of the roller clamp 11.
Referring to fig. 1 and 3, in the present embodiment, the roller clamp 11 includes two driving wheels 111 and two driven wheels 112 symmetrically disposed with respect to the driving wheels 111, respectively. The two driving wheels 111 are respectively connected with the first stepping motor 5 on the same side, and the two driven wheels 112 are respectively connected with the outer racks 14 on the same side.
When the intersecting line auxiliary cutting device works, the first stepping motor 5 can drive the driving wheel 111 to rotate, so as to drive the pipe fitting 3 to rotate, and the driven wheel 112 is used as an auxiliary wheel to rotate. Through the design, the pipe fitting 3 can be guaranteed to stably rotate on the roller clamp, the pipe fitting 3 does not need to be fixedly clamped like a traditional chuck clamp, quick feeding and discharging can be realized, and the time for clamping and positioning is greatly saved, so that the machining efficiency is improved. In addition, in the adjusting process, the driving wheel 111 and the driven wheel 112 can be simultaneously drawn close to or expanded towards the central axis of the roller clamp 11, so that the central axis of the roller clamp 11 is unchanged in the adjusting process, and the purpose of quickly and accurately adjusting the radius of the pipe fitting 3 is achieved. In the preferred embodiment of the present invention, the roller clamp 11 is made of a high damping polyacrylate material to ensure that the roller clamp 11 can stably rotate the pipe 3.
Referring to fig. 1 and 4, in the present embodiment, the cutting driving device includes a feed screw 22, a second stepping motor 23, and a second screw slider 24 sleeved on the feed screw 22. Both ends of the feed screw 22 are rotatably connected to the cross member 42, respectively, and one end of the feed screw 22 is also connected to the second stepping motor 23. The cutting head 21 is connected to a second screw slide 24. The feed screw 22 can be driven to rotate by the second stepping motor 23, so that the second screw slider 24 and the cutting bit 21 arranged on the second screw slider 24 are driven to do left-right feed motion, and the pipe 3 is cut. Because the central axis of the roller clamp 11 and the axial direction of the cutting tool bit 21 are positioned on the same plumb face, automatic centering can be realized when the pipe fitting 3 is placed, the procedure is simple, and the roller clamp 11 is not required to be aligned again after being adjusted.
In order to facilitate an understanding of the invention, some preferred embodiments of the invention are described further below.
Referring to fig. 1, in a preferred embodiment, two ends of the feed screw 22 are connected to the frame 4 through a limit switch 6, respectively. By setting the limit switch 6, the accurate limit of the second screw slider 24 can be ensured.
Referring to fig. 1, in a preferred embodiment, the cutting bit 21 is a plasma bit. The cutting precision of the plasma cutter head is higher than that of flame cutting, so that the accurate cutting of intersecting lines can be ensured. The plasma tool bit is detachably connected with the second screw slider 24 through a cutting tool bit clamping structure 25. Because the cutter head 21 is detachably connected with the second screw rod sliding block 24, the cutter head 21 is convenient to replace, and the height of the cutter head 21 can be adjusted according to the pipe diameter of the pipe fitting 3 when different pipe fittings 3 are cut, so that accurate cutting is realized.
In another preferred embodiment, the intersecting line assisting cutting device further comprises a controller and a control panel. The controller is connected with the first stepping motor 5, the second stepping motor 23, the control panel and the power supply assembly respectively. The controller controls the rotation speed of the first stepping motor 5 and the second stepping motor 23, so as to control the rotation speed of the pipe fitting 3 and the feeding speed of the cutting bit 21, and finally ensures the stable rotation of the pipe fitting 3 and the accurate cutting of the cutting bit 21 in the cutting process.
In a preferred embodiment, the controller control panel is provided with at least a reset button for resetting the cutter head to an intermediate position and a tube size input module for selecting a tube size. Before cutting, the controller controls the cutter head 21 to return to the neutral position by pressing the reset button. Then, after the pipe diameter of the pipe 3 to be cut is selected through the pipe dimension input module, the controller controls the speeds of the first stepping motor 5 and the second stepping motor 23 according to the pipe diameter of the pipe 3 to be cut, and further controls the rotation speed of the pipe 3 and the speed of the left and right feeding movement of the cutting tool bit 21 respectively so as to cut out the required intersecting line.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.