A kind of shift pivoted arm perforating deviceTechnical field
The present invention relates to auto parts and components manufacture fields, and in particular to a kind of perforating device.
Background technology
Shift pivoted arm structure is the important composition component of automotive transmission, is mainly used for automobile steering system and automobile shelvesPosition acceleration system；Existing shift pivoted arm structure is made of shift pivoted arm, shift zipper pin and shift spacer pin three parts.It changesPivoted arm generally tablet is kept off, the one end for pivoted arm of shifting gears is provided with gear-shifting inhaul cable pin via, and shift zipper pin is mounted on shift zipper pinIn via；The shift pivoted arm other end is provided with shift spacer pin via, and shift spacer pin is mounted in shift spacer pin via, shiftThe mounting hole of shift pivoted arm structure assembly is also provided on pivoted arm.That is, several holes are equipped in order to assemble the pivoted arm that needs to shift gears.
In the prior art when being punched to workpiece, the fixed form of generally use is：Workbench is equipped with several dovetail grooves,Bolt is slidably connected in dovetail groove, briquetting is socketed on bolt, locking nut is also threaded on bolt, and briquetting is located at spiral shellBetween bolt head and locking nut.When punching, workpiece is placed on the table, the slide bolt in dovetail groove makes on boltBriquetting is located on workpiece, then rotates locking nut, makes briquetting workpiece pressing, to realize the fixation to workpiece.Before drillingManual adjustment bolt, briquetting and locking nut are needed to realize the fixation to workpiece, needs manually to unlock to workpiece after completing drillingFixed, operation is relatively complicated, increases drilling part forward and backward non-cutting time, production efficiency is low.
Invention content
It, can before drilling to shift pivoted arm (hereinafter referred to as workpiece) the invention is intended to provide a kind of shift pivoted arm perforating deviceRealization is automatically fixed workpiece, completes that fixation to workpiece can be unlocked without dismantling clamp system after drilling, reduces auxiliaryIt helps the time, improves production efficiency.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：A kind of shift pivoted arm perforating device, including rack,Be installed with workbench in rack, slidably connect motor in rack, the output shaft of motor is arranged perpendicular to workbench, motor it is defeatedDrill bit is coaxially connected on shaft；Further include the first cylinder sleeve and the second cylinder sleeve being installed in rack, on the output shaft of motorIt is coaxially connected with driving gear, driving gear is engaged with driven gear, and driven gear is rotatably connected in rack, driven gearEnd face eccentric is rotatably connected to first connecting rod, and the other end of first connecting rod is rotatably connected to second connecting rod, and second connecting rod rotation connectsIt is connected to swing rod, the other end of swing rod is connect with gantry rotation；First piston head, first piston head are slidably connected in first cylinder sleeveForm the first sap cavity with the top of the first cylinder sleeve, be fixedly connected with First piston bar on first piston head, First piston bar it is anotherOne end is rotatablely connected with second connecting rod；First sap cavity is communicated with inlet tube and outlet tube, and inlet tube is communicated with liquid case, on inlet tubeEquipped with feed liquor check valve, outlet tube is equipped with out liquid check valve；Second piston head, second piston are slidably connected in second cylinder sleeveHead forms the second air cavity and the second sap cavity with the second cylinder sleeve, and second piston bar, second piston are fixedly connected on second piston headThe other end of bar is extend out to by the bottom of the second air cavity outside the second cylinder sleeve, and it is solid that second piston bar stretches out one end outside the second cylinder sleeveSurely it is connected with the briquetting of fixed workpiece, the second sap cavity is connected to by outlet tube with the first sap cavity, and the second sap cavity is communicated with return duct,Return duct is connected to liquid case, and second switch valve is connected on return duct.
The principle and advantage of this programme be：Workbench is for placing workpiece；Drill bit and motor output it is coaxially connected, drill bit withMotor rotates and carries out boring work to workpiece；Liquid case is for storing liquid.Feed liquor check valve is set and goes out liquid check valve, makes liquidBody can only enter the first sap cavity from inlet tube, be discharged from outlet tube.When drill free, driving gear is engaged with driven gear, mainMoving gear drives driven gear rotation, and driven gear rotation drives first connecting rod, second connecting rod and swing rod to move back and forth, to makeFirst piston bar moves back and forth.When motor drives drill bit movement to be drilled, driving gear is detached from driven gear, and driven gear stopsRotation stop is dynamic, and First piston bar stops moving back and forth.First piston bar is fixedly connected with first piston head, and first piston head is firstIt is moved back and forth in cylinder sleeve, to be expelled in the second sap cavity after the liquid in liquid case is sucked into the first sap cavity；When the second liquidIntracavity liquid gradually increases, and the second sap cavity volume increases, and pushes second piston head in the second cylinder sleeve to close to the direction of workpieceSliding.When drill free, the gas in the second air cavity is compressed, after drilling, gas compressed volume in the second air cavityExpansion pushes the movement of second piston head, the liquid in the second sap cavity is expelled in liquid case.Second piston bar is for connecting secondPiston head and briquetting make briquetting be moved with second piston head, briquetting are made to offset with workpiece, to which workpiece be fixed.DrillingAfter, return duct unlocks fixation of the briquetting to workpiece for the liquid in the second sap cavity to be expelled in liquid case.Second switchValve, which is used to open either closing volume pipe, makes the second sap cavity be connected to or not be connected to liquid case.
When using the above scheme, drill bit is reached to the linear motion for being converted into briquetting before setting speed, makes pressureBlock is fixed workpiece；When drilling, driving gear is not engaged with driven gear, driven gear stop motion, briquettingStop movement continuing that workpiece is fixed, the briquetting unfavorable mechanical energy with motor when drilling does not increase the load of motor；It completesAfter drilling, second switch valve is opened, the liquid in the second sap cavity is expelled in liquid case, unlocks the fixation to workpiece.With existing skillArt needs the realization of manual adjustment clamp system to fix and unlock stationary phase ratio to workpiece, and this programme is not necessarily to manual adjustment clamping machineStructure can automatically be clamped workpiece hole to be drilled, after completing drilling, it is only necessary to which second switch valve, which is opened manually, can unlock to workThe fixation of part.This programme is easy to operate, has saved fixed and dismounting clamp system non-cutting time, has improved production efficiency.
Further, the upper end of each tooth of driving gear is equipped with the first protrusion, and the section of the first protrusion is upright triangleShape；The lower end of each tooth of driven gear is equipped with the second protrusion, and the section of the second protrusion is inverted triangle.
After completing drilling, drill bit stops operating, and driving gear stops operating, and driving gear is moved upwardly together with drill bit,First protrusion and the second protrusion play the guiding role, and are engaged again with driven gear convenient for driving gear, avoid the tooth of driving gearIt is blocked by the lower end of tooth on driven gear, need to manually stir can just engage again.
Further, the second sap cavity is communicated with overflow pipe, and overflow pipe is connected to liquid case, and overflow valve is connected on overflow pipe.It overflowsStream valve can stablize the fluid pressure in the second sap cavity, and extra liquid is expelled in liquid case, prevents from damaging because pressure is excessiveSecond cylinder sleeve, second piston head and second piston bar etc..
Further, the lower part of first piston head and the first cylinder sleeve formed the first air cavity, the first air cavity be equipped with air inlet andGas outlet, air inlet are connected with breather check valve, and gas outlet is communicated with hose, and outgassing nonreturn valve is connected on hose, and hose connectsIt is connected with the air bag being fixedly connected in rack, being set on air bag also has gas outlet, and air bag gas outlet is communicated with tracheae, is connected on tracheaeThere is first switch valve.
While First piston bar reciprocating motion makes the first sap cavity imbibition, drain, the first air cavity volume accordingly becomes smaller, becomesGreatly, exhaust, air-breathing are realized, is stored to which extraneous gas to be filled in air bag, increases power source without additional.It completes to boreAfter the work of hole, first switch valve is opened, and the gas in air bag is discharged from tracheae, and the slag charge left after drilling on workpiece is blown away,Clean workpiece；Workpiece is cooled down simultaneously.
Further, compression spring is arranged in second piston bar, one end of compression spring is fixedly connected on piston head, compression spring it is anotherEnd is fixedly connected on the first air cavity bottom.
By the way that compression spring is arranged, second piston bar causes second piston bar and the bottom of the second air cavity due to reciprocating motionWhen connecting failure at sealing, the gas in the second air cavity is discharged, and can not be passed through the compressed gas in the second air cavity and be pushed secondPiston head moves, and compressed compression spring restores at this time, and second piston head can be made to move and pass through back the liquid in the second sap cavityFlow tube is expelled in liquid case, improves the reliability of device.
Further, it is installed with protective pad below briquetting.When briquetting workpiece pressing is fixed, protective pad can prevent briquettingWeigh workpiece wounded.
Further, it is rotatably connected to opening on first switch valve or closes the first in command of first switch valve, second opensClose the second handle for being rotatably connected to opening on valve or closing second switch valve.As a result, be convenient for worker by swing handle withOpen or close exploitation valve.
Further, the first in command is arranged in parallel with second handle, and the tail portion of second handle is rotatably connected to company by axis pinThe other end of extension bar, connecting rod is rotatablely connected also by the tail portion of axis pin and the first in command.Once-through operation can be beaten simultaneously as a result,On or off closes first switch valve and second switch valve, without operating twice, more convenient operation.
The upper and lower of orientation presented above only represents relative position relation, does not represent and feels position relationship.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the B direction views in Fig. 1.
Fig. 3 is the A-A sectional views in Fig. 1.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail：
Reference numeral in Figure of description includes：Workbench 1, motor 11, connecting shaft 12, drill bit 13, driving gear 21,First protrusion 211, driven gear 22, the second protrusion 221, first connecting rod 23, second connecting rod 24, swing rod 25, First piston bar 26,First cylinder sleeve 31, breather check valve 33, hose 34, outgassing nonreturn valve 341, outlet tube 35, goes out liquid check valve at first piston head 32351, inlet tube 36, feed liquor check valve 361, the first air cavity 37, the first sap cavity 38, air bag 4, tracheae 41, first switch valve 42,Leader 421, connecting rod 43, the second cylinder sleeve 51, second piston head 52, second piston bar 53, compression spring 531, briquetting 54, protective pad541, second switch valve 55, second handle 551, return duct 552, overflow pipe 56, overflow valve 561, the second air cavity 57, the second sap cavity58, liquid case 6.
Embodiment is substantially as shown in Figure 1：A kind of shift pivoted arm perforating device, including rack and horizontally disposed workbench 1,Workbench 1 is welded in rack, is slid vertically in rack and is connected with motor 11, connection is coaxially connected on the output shaft of motor 11Axis 12, connecting shaft 12 are arranged perpendicular to workbench 1, and connecting shaft 12 is coaxially connected with drill bit 13, the specific connection type of drill bit 13For：Connecting shaft 12 is equipped with clamping portion, and drill bit 13 is equipped with the buckling groove coordinated with clamping portion in connecting shaft 12.In connecting shaft 12It is coaxially connected with driving gear 21 by key, two grooves are additionally provided in connecting shaft 12, engaging in groove has baffle ring, driving gear21 offset with two baffle rings；Two baffle rings carry out driving gear 21 circumferentially positioned, prevent the vibration in connecting shaft 12 of driving gear 21.Driving gear 21 is engaged with driven gear 22, and driven gear 22 is connect by shaft with gantry rotation.In conjunction with Fig. 3 it is found that activelyThe upper end of each tooth of gear 21 is welded with the first protrusion 211, and the section of the first protrusion 211 is upright triangle；Driven toothThe lower end of each tooth of wheel 22 is welded with the second protrusion 221, and the section of the second protrusion 221 is inverted triangle.It is main when drillingMoving gear 21 is moved downward with drill bit 13, and driven gear 22 is detached from driving gear 21 and is not engaged with, and driven gear 22 stops turningIt is dynamic；After completing drilling, drill bit 13 stops operating, and driving gear 21 stops operating, and driving gear 21 is transported upwards with drill bit 13Dynamic, the first protrusion 211 and the second protrusion 221 play the guiding role, and engage, avoid again with driven gear 22 convenient for driving gear 21The tooth of driving gear 21 is blocked by the lower end of tooth on driven gear 22, and need to manually stir can just engage again.
In conjunction with Fig. 2 it is found that the end face of driven gear 22 is connected with first connecting rod 23, first connecting rod by axis pin eccentric rotary23 other end is rotatably connected to second connecting rod 24 also by axis pin, and the other end of second connecting rod 24 is rotatablely connected also by axis pinThere are swing rod 25, the other end of swing rod 25 to be connect with gantry rotation；The middle part of second connecting rod 24 is rotatably connected to First piston bar 26,First piston head 32, first connecting rod 23, swing rod 25 and First piston bar has been bolted in the other end of First piston bar 2626 are respectively positioned on the homonymy of second connecting rod 24；First piston head 32 slidably connects the first cylinder sleeve 31 being fixed on the rack, and firstFirst cylinder sleeve 31 is divided into the first air cavity 37 and the first sap cavity 38 by piston head 32；First air cavity, 37 bottom is equipped with air inlet and goes outGas port, air inlet are connected with breather check valve 33, and gas outlet is communicated with hose 34, outgassing nonreturn valve 341 is connected on hose 34,Hose 34 is communicated with the air bag 4 being fixedly connected in rack, and being set on air bag 4 also has gas outlet, and 4 gas outlet of air bag is communicated with tracheae41, first switch valve 42 is connected on tracheae 41, and first switch valve 42 is bolted in rack, on first switch valve 42It is rotatably connected to opening or closes the first in command 421 of first switch valve 42, the first in command 421 is vertically arranged.
The bottom of first sap cavity 38 is communicated with inlet tube 36 and outlet tube 35, and inlet tube 36 is equipped with feed liquor check valve 361,Inlet tube 36 is communicated with the liquid case 6 being installed in rack；Outlet tube 35 is equipped with out liquid check valve 351, in conjunction with Fig. 1 it is found that going outLiquid pipe 35 is connected with the second cylinder sleeve 51, slidably connects second piston head 52 in the second cylinder sleeve 51, and second piston head 52 is by secondCylinder sleeve 51 is divided into the second air cavity 57 and the second sap cavity 58, and the second sap cavity 58 is connected to the outlet tube 35 on the first sap cavity 38；TheTwo sap cavities 58 are communicated with overflow pipe 56 and return duct 552, and overflow pipe 56 and return duct 552 are connected to liquid case 6；On overflow pipe 56It is connected with overflow valve 561, overflow valve 561 can stablize the fluid pressure in the second sap cavity 58, and extra liquid is expelled to liquid case 6In, it prevents from damaging the second cylinder sleeve 51, second piston head 52 and second piston bar 53 etc. because pressure is excessive.Connect on return duct 552It is connected to second switch valve 55, second switch valve 55 is bolted in rack, is rotatably connected to and beats on second switch valve 55On or off closes the second handle 551 of second switch valve 55, and second handle 551 is also vertically arranged, and the tail portion of second handle 551 is logicalIt crosses axis pin and is rotatably connected to connecting rod 43, the other end of connecting rod 43 is rotated also by the tail portion of axis pin and the first in command 421 to be connectedIt connects.Second piston bar 53 has been bolted in second piston head 52, and the other end of second piston bar 53 passes through the second air cavity 57Bottom extend out to outside the second cylinder sleeve 51, second piston bar 53 stretch out the second cylinder sleeve 51 outside one end briquetting has been bolted54,54 lower section of briquetting is bonded with protective pad 541, and protective pad 541 is strap, rubber pad or nylon cushion, and work is compressed in briquetting 54When part is fixed, protective pad 541 can prevent briquetting 54 from weighing workpiece wounded；Compression spring 531, compression spring are arranged in second piston bar 53531 one end is welded on piston head, and the other end of compression spring 531 is welded on the bottom of the second air cavity 57.
Body implementation process is as follows：When initial, there is no gas in air bag 4.Workpiece is placed on workbench 1, drill bit 13 existsBefore starting drilling, the idle running of a period of time need to be carried out, just starts boring work after 13 rotating speed of drill bit reaches setting value.StartMotor 11, motor 11 drive driving gear 21 to rotate by connecting shaft 12, and driving gear 21 drives driven gear 22 to rotate, in conjunction withFig. 2 is it is found that the end face eccentric due to first connecting rod 23 and driven gear 22 is rotatablely connected, thus first connecting rod 23 is with driven gear22 rotation and move back and forth, second connecting rod 24 is moved with first connecting rod 23, and swing rod 25 is with 24 reciprocally swinging of second connecting rod, firstPiston rod 26 with first connecting rod 23, second connecting rod 24 and swing rod 25 movement and back and forth move up and down.First piston bar 26 is upwardWhen movement, the gas in the first air cavity 37 is expelled in air bag 4, while the liquid in liquid case 6 is sucked into the first sap cavity 38In；Ambient atmos are sucked in the first air cavity 37 when First piston bar 26 moves downward, while the liquid in liquid case 6 being expelled toIn second sap cavity 58；First piston bar 26 moves back and forth, the first air cavity 37 it is reciprocal ambient atmos are sucked after be expelled to air bag 4In store；It is expelled in the second sap cavity 58 after imbibition in 38 reciprocal slave liquid case 6 of the first sap cavity simultaneously, the second sap cavity 58Liquid is more and more, and the volume of the second sap cavity 58 is made gradually to increase, and 52 compression press spring 531 of second piston head is pushed to move down,Second piston head 52 makes second piston bar 53 move down, and briquetting 54 is driven to move downward, make protective pad 541 on briquetting 54 withWorkpiece offsets, to workpiece pressing.When to the Workpiece boring of different height, when the height of workpiece is higher, need under briquetting 54It is capable apart from smaller, then the liquid in the second sap cavity 58 is less；After protective pad 541 and workpiece offset, excessive liquid entersAfter second sap cavity 58, the pressure of the second sap cavity 58 is made to increase, when pressure reaches the setting value of 56 overflow valve 561 of overflow pipe,Overflow valve 561 is opened, and extra liquid is expelled to by overflow pipe 56 in liquid case 6 in the second sap cavity 58, until no liquid again fromFirst sap cavity 38 is discharged into until the second sap cavity 58, and overflow valve 561 is closed.
When drill bit 13 reaches the rotating speed of setting, motor 11 moves downward, and drill bit 13 is by connecting shaft 12 moves downwardBoring work is carried out to workpiece, while driving gear 21 is moved downward with connecting shaft 12 and is detached from driven gear 22, driven toothWheel 22 stops operating, then 26 stop motion of First piston bar.26 stop motion of First piston bar, stops inflation in air bag 4, and firstSap cavity 38 stops imbibition and the drain into the second sap cavity 58；53 stop motion of second piston bar, 54 stop motion of briquetting, briquetting 54Still workpiece pressing drills to workpiece convenient for drill bit 13.After drill bit 13 completes drilling, motor 11 is closed, drill bit 13 stops turningIt is dynamic, so that motor 11 is moved up, drill bit 13 is moved upwards by connecting shaft 12, and driving gear 21 is transported upwards also by connecting shaft 12It is dynamic, it is driven since driving gear 21 is equipped with the first protrusion 211 when driving gear 21 moves at 22 lower end of driven gearGear 22 be equipped with the second protrusion 221, first protrusion 211 and second protrusion 221 guiding role under, driving gear 21 with fromMoving gear 22 is engaged and is restPosed again, waits for boring work next time.When drill bit 13 leaves workpiece and moves upwards, tiltedlyConnecting rod 43 is pulled downward on, since the first in command 421 and second handle 551 are rotatablely connected with connecting rod 43, thus the firstHand 421 and second handle 551 are rotated counterclockwise to open first switch valve 42 and second switch valve 55.First switch valve 42 is beatenIt opens, the gas in air bag 4 is discharged from tracheae 41, and the slag charge left after drilling on workpiece is blown away, and cleans workpiece；Simultaneously to workpieceIt cools down.Second switch valve 55 is opened, and the second sap cavity 58 is connected to liquid case 6, and compressed compression spring 531 restores, and is pushedSecond piston head 52 moves up, to which the liquid in the second sap cavity 58 to be expelled to by return duct 552 in liquid case 6.ThenConnecting rod 43 is pulled obliquely, and the first in command 421 and second handle 551 are rotated clockwise to close first switch valve 42 and secondSwitch valve 55.
Above-described is only the embodiment of the present invention, the common sense such as well known specific technical solution and/or characteristic in schemeIt does not describe excessively herein.It should be pointed out that for those skilled in the art, before not departing from technical solution of the present inventionIt puts, several modifications and improvements can also be made, these should also be considered as protection scope of the present invention, these all do not interfere with thisInvent the effect and patent practicability implemented.The scope of protection required by this application should be based on the content of the claims,The records such as the specific implementation mode in specification can be used for explaining the content of claim.