A fork shaft drilling processing equipment and processing method for automobile production

Abstract

The present invention discloses a shift fork shaft drilling processing equipment and a processing method for automobile production, comprising a placing table, a positioning assembly, a lifting seat and a drill bit, the lifting seat is provided with a drill bit, positioning assemblies are provided on both sides of the placing table, the placing table comprises a support portion, two positioning frames are provided on the support portion, at least one of the positioning frames is rotatably connected to the support portion, and an elastic member is provided on the support portion, and semicircular positioning openings are provided on both sides of the positioning frames; semicircular positioning portions are provided in both positioning frames, and semicircular gears are slidably provided in the semicircular positioning portions, wherein an elastic telescopic member is provided on the inner ring of the semicircular gear, and a toggle member is connected to the elastic telescopic member near the center end, and a rack meshing with the semicircular gear when descending is provided on the lifting seat. This shift fork shaft drilling processing equipment and a processing method for automobile production can automatically complete the angle alignment between the radial hole and the chip surface, reduce the cumbersomeness of workers' operation, and reduce the labor intensity of workers.

Description

Technical Field

[0001] The invention belongs to the technical field of shift fork shaft drilling equipment, in particular to a shift fork shaft drilling processing equipment for automobile production and a processing method thereof. Background Art

[0002] In the prior art, the connecting part of the automobile shift fork shaft is sleeved on the speed fork shaft, and the shift fork frame is clamped in the groove of the double-linked change gear. When the automobile needs to change speed, the shift lever is operated, and the change control mechanism can drive the shift fork and the speed fork shaft to slide in the gearbox through the control groove of the shift fork head. The shift fork frame shifts the double-linked change gear to slide on the spline to change the gear position, thereby changing the speed. Figure 8 Different fork shafts have different assembly parts. These assembly parts need to be processed on the fork shaft with radial holes a or cutting planes b for assembly, so the fork shaft needs to be drilled during the production process. Since there is a fixed angle and position relationship between the radial hole a and the cutting plane b, precise positioning is required during the drilling process. In the prior art, when drilling the fork shaft, workers need to manually place the fork shaft to the processing position, use a fixture to accurately align the cutting plane of the fork shaft in a specific direction, and then perform drilling. This makes the operation more cumbersome for workers, and they need to manually adjust the rotating fork shaft, and the positioning accuracy is difficult to accurately guarantee. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a shift fork shaft drilling processing equipment for automobile production, which can automatically complete the angle alignment between the radial hole and the chip surface, conveniently and quickly achieve precise positioning, reduce the tediousness of workers' operations, and reduce the labor intensity of workers.

[0004] In order to solve the above technical problems, the present invention is solved by the following technical solutions: a fork shaft drilling processing equipment for automobile production, comprising a placing table, a positioning assembly, a lifting seat and a drill bit, the lifting seat is provided with a drill bit, and positioning assemblies for positioning the two ends of the fork shaft are provided on both sides of the placing table, the placing table comprises a supporting part, two positioning frames are provided on the supporting part, at least one of the positioning frames is rotatably connected to the supporting part, and an elastic member with elastic force in the direction of splicing the two positioning frames is provided on the supporting part, semicircular positioning openings that can be spliced ​​to form a circular positioning opening are provided on both sides of the positioning frame, and an opening for the drill bit to pass through is provided on the top of the positioning frame; semicircular positioning parts are provided in the two positioning frames, and semicircular guide The cam is provided with a toothed groove, and a semicircular gear is slidably arranged in the semicircular guide groove, wherein an inner ring of one of the semicircular gears is provided with an elastic telescopic member that can be telescoped in a radial direction, and a toggle member is connected to the elastic telescopic member near the center end thereof, and the toggle member comprises a connecting seat and two toggle rods arranged on the connecting seat in the same direction as the elastic telescopic member, and the spacing between the two toggle rods is equal to the difference between the diameter of the fork shaft and the cutting depth of its cutting plane, and a rack arranged along the lifting direction is arranged on the lifting seat, and the toothed portion of the rack is located below the drill bit, and when the lifting seat descends, the rack meshes with the semicircular gear from the opening side of the positioning frame, and when the toothed portion completely passes through the two semicircular gears, the two semicircular gears rotate at least one circle, and the toggle member drives the fork shaft to rotate to a preset angle.When drilling a hole on a fork shaft of this type of automobile production shift fork shaft drilling processing equipment, the shift fork shaft is clamped between the two positioning frames, and the two semicircular positioning parts are used to tighten the shift fork shaft for preliminary positioning. The shift fork shaft can still rotate under the preliminary positioning, and when the shift fork shaft is placed, the connecting line of the two shifting rods is aligned with the cutting plane of the shift fork shaft; then the lifting seat descends, and during the descent of the rack, the toothed part drives the two semicircular gears to rotate, and the shifting member drives the shift fork shaft to rotate to a preset angle. Since the spacing between the two shifting rods is equal to the difference between the diameter of the shift fork shaft and the cutting depth of its cutting plane, the two shifting rods have a unique angle to be inserted into the shift fork shaft. When the two positioning frames are clamped, if the shifting rod does not match the shift fork shaft with the cutting plane, the shifting rod cannot be inserted into the shift fork shaft, the elastic telescopic member connected to the shifting member will be compressed, and the end of the shifting rod will It fits on the outer wall of the fork shaft. When the toothed part of the rack drives the two semicircular gears to rotate, the two toggle rods will rotate around the outer wall of the fork shaft. When the two toggle rods rotate to match the fork shaft with the cutting plane, the toggle rods are inserted into the fork shaft, and then the toggle rods continue to rotate and drive the fork shaft to rotate until it rotates to a preset angle; then, the two ends of the fork shaft are positioned by the positioning assembly; then the lifting seat continues to descend and the drill bit punches holes on the fork shaft; after the drilling is completed, the lifting seat rises and the drill bit rises to the top of the fork shaft; then the positioning assembly locates and releases the two ends of the fork shaft; then the lifting seat continues to rise, and the rack drives the two semicircular gears to reset during the rising process, and resets them to the two semicircular gears respectively located in the two semicircular grooves, so that the two positioning frames can be separated; then the two positioning frames are separated and the fork shaft with the drilling completed is removed to complete the processing. This fork shaft drilling processing equipment for automobile production can automatically complete the angle alignment between the radial hole and the chip surface, conveniently and quickly achieves precise positioning, reduces the tediousness of workers' operations, and reduces the labor intensity of workers.

[0005] In the above technical solution, preferably, a first transverse slide rail is provided in each of the two positioning frames, a first slider is connected to the two semicircular positioning parts, the first slider is slidably provided on the first transverse slide rail, a bolt is screwed on the first slider, and the first transverse slide rail is tightened by the bolt to position the first slider, a second transverse slide rail is provided on the lifting seat, a second slider is slidably provided on the second transverse slide rail, the rack is provided on the second slider, a bolt is screwed on the second slider, and the second transverse slide rail is tightened by the bolt to position the second slider. This structure makes the axial position of the semicircular positioning part in the positioning frame adjustable, and the axial position of the rack on the lifting seat adjustable. Before performing batch punching of the fork shaft, the position of the semicircular positioning part and the rack is adjusted first, so as to adapt to the processing of various fork shafts with different cutting planes and drilling spacings on the fork shaft.

[0006] In the above technical solution, preferably, the rack and the second slider are detachably connected by bolts. This structure can be conveniently replaced with the rack, and the rotation angle of the semicircular gear can be adjusted when the lifting seat is pressed down by replacing the rack, thereby changing the angle of the cutting plane when the fork shaft is punched, thereby adapting to the processing of fork shafts with various punching angles and different angles between the cutting plane and the fork shaft.

[0007] In the above technical solution, preferably, a guide groove is provided on the connecting seat, wherein one of the toggle rods is fixed at the end of the guide groove, and the other toggle rod is slidably provided in the guide groove, and a first screw rod is rotatably provided in the guide groove, and one end of the first screw rod extends out of the guide groove and is connected to an adjustment knob, and the adjustment knob is rotated to adjust the distance between the two toggle rods. With this structure, the distance between the two toggle rods can be adjusted by adjusting the knob, so as to adapt to the processing of the fork shaft with different cutting depths of the cutting plane.

[0008] In the above technical solution, preferably, the elastic member is a torsion spring arranged on the rotation axis of the positioning frame, and two ends of the torsion spring are respectively fixed to the support portion and the rotation axis of the positioning frame.

[0009] In the above technical solution, preferably, the two positioning frames are assembled to form a protective cover with an open top and sealed sides, a debris discharge channel is provided at the bottom of the positioning frame, a debris collection frame is detachably connected to the bottom of the debris discharge channel, an exhaust port is provided at the top of the debris collection frame, and an extrusion cover matching the protective cover is provided on the lifting seat, and when the lifting seat is pressed down, the extrusion cover contacts the protective cover and continues to move downward, forming an airflow flowing from the protective cover to the debris collection frame to drive debris into the debris collection frame. The use of this structure can prevent debris from splashing during the drilling process, and when the lifting seat is lowered, the gas in the extrusion cover will be squeezed out. During the drilling process, an airflow can be generated from the protective cover to the debris collection frame to drive the debris into the debris collection frame. Since the exhaust port is located at the top of the debris collection frame, the debris itself has a certain gravity, and the debris will be collected in the debris collection frame, and only air will be discharged from the exhaust port; and in the process of the lifting seat rising, since the semicircular gear resetting process will rotate the fork shaft for at least one circle, the debris that may fall on the upper surface of the fork shaft will also fall into the protective cover as the fork shaft rotates, and finally be collected by the debris collection frame. The debris can be conveniently poured out by disassembling the debris collection frame.

[0010] In the above technical solution, preferably, guide holes are provided on both sides of the extrusion cover, and sliding plates are provided in the two guide holes, and a motor and the drill driven by the motor are fixedly provided on the sliding plates. With this structure, the drilling position of the drill on the fork shaft can be adjusted by moving the sliding plates.

[0011] In the above technical scheme, preferably, a lifting platform is provided at the bottom of the placing table, and a plurality of first guide rods are vertically penetrated on the lifting platform, the top of the first guide rod is fixedly connected to the support part, a first limiting part is provided at the bottom of the first guide rod, a first spring is sleeved on the first guide rod between the support part and the lifting platform, a second guide rod is vertically provided at the bottom of the lifting platform, the second guide rod is movably arranged in the guide cylinder, movable brackets are provided on both sides of the lifting platform, guide rails are provided at the bottom of the lifting platform, the movable bracket is slidably arranged on the guide rails, a second screw driven by a motor is provided in parallel with the guide rails, the movable bracket is threadedly matched with threads on both sides of the second screw in opposite directions, and a plurality of third guide rods are vertically provided on the top of the lifting seat, and the top of the third guide rod passes through A first fixed bracket, a second limiting portion is provided on the top of the third guide rod, a second spring is sleeved on the third guide rod between the first fixed bracket and the second limiting portion, a first inclined surface for pushing the lifting platform to rise and a second inclined surface for pushing the lifting seat to descend are provided on the movable bracket, the positioning assembly comprises an end positioning rod penetrated by the movable bracket, a first tension spring is provided between the outer end of the end positioning rod and the movable bracket, a plurality of elastic clamping sheets are provided around the end positioning rod, and a wedge block is provided outside the elastic clamping sheet; the positioning assembly comprises a fourth guide rod consistent with the direction of the guide rail, a sliding member is slidably provided on the fourth guide rod, a limiting ring is provided on the sliding member, and a second tension spring is provided between the sliding member and the end of the fourth guide rod close to the movable bracket. With the above structure, the second screw is driven to rotate by the motor during processing, so that the two movable brackets can move toward or away from each other; during the processing, the fork shaft is clamped between the two positioning frames, and the two semicircular positioning parts are used to tighten the fork shaft for preliminary positioning. Under the preliminary positioning, the fork shaft can still rotate, and then the second screw is driven to rotate by the motor, the two movable brackets move toward each other, the first inclined surface drives the lifting platform and the placing table to rise together, the second inclined surface drives the lifting seat to descend, and the elastic clamping piece moves toward the limit ring.During this process, first, the end positioning rods on both sides support the shift fork shaft and automatically adjust the position of the shift fork shaft so that the connection line of the two shift rods is aligned with the cutting plane of the shift fork shaft, and then the rack drives the semicircular gear to rotate, and finally rotates the shift fork shaft to a preset angle; then the outer wall of the elastic clamping piece and the limit ring are deformed and contracted to clamp the shift fork shaft; the two movable brackets continue to move toward each other, and the shift fork shaft no longer rises due to the limit of the elastic clamping piece, the lifting platform continues to rise and compresses the first spring, and the elastic clamping piece and the limit ring move toward the center of the shift fork shaft together, the lifting seat continues to descend, and the drill bit drills a hole in the shift fork shaft; after the drilling is completed, the motor drives the second screw to reverse so that the two movable brackets The movable bracket moves in opposite directions, at this time the lifting seat rises, the drill bit leaves the fork shaft, the elastic clamping piece and the limit ring move together in the direction away from the center of the fork shaft, and the lifting platform descends; after the elastic clamping piece releases the fork shaft, the lifting platform and the placement table descend together, the toothed portion of the rack begins to mesh with the semicircular gear, the semicircular gear is reset, and then the fork shaft with the punched hole can be removed. The above structure can realize the forward and reverse rotation of the second screw rod only by the motor to realize the processing of the fork shaft in sequence according to the set steps, and the end positioning rods on both sides can support the fork shaft and automatically adjust the position of the fork shaft so that the connection line of the two shifting rods is aligned with the cutting plane of the fork shaft.

[0012] In the above technical solution, preferably, first rollers cooperating with the first inclined surface are rotatably provided at both ends of the lifting platform, and second rollers cooperating with the second inclined surface are rotatably provided at both ends of the lifting seat. This structure is used to reduce the friction between the lifting platform and the first inclined surface, and the friction between the lifting seat and the second inclined surface, so that the cooperation between the movable bracket and the lifting platform and the lifting seat is smoother.

[0013] The processing method of the above-mentioned fork shaft drilling processing equipment for automobile production includes the following steps: S1: the fork shaft is installed into two positioning frames and positioned by the circular positioning opening, and the connection line of the two shifting rods is aligned with the cutting plane of the fork shaft during installation; S2: the lifting seat descends, and the toothed portion drives the two semicircular gears to rotate during the descending process of the rack, and the shifting member drives the fork shaft to rotate to a preset angle; S3: the two ends of the fork shaft are positioned by the positioning assembly; S4: the lifting seat continues to descend and the drill bit drills a hole on the fork shaft; S5: the lifting seat rises and the drill bit rises to above the fork shaft; S6: the positioning assembly is positioned to release the two ends of the fork shaft; S7: the lifting seat continues to rise, and the rack drives the two semicircular gears to reset during the rising process; S8: the fork shaft with the drilling completed is removed.

[0014] Compared with the prior art, the present invention has the following beneficial effects: when drilling a hole on the fork shaft of the automobile production shift fork shaft, the shift fork shaft is clamped between the two positioning frames, and the two semicircular positioning parts are used to tighten the shift fork shaft for preliminary positioning. The shift fork shaft can still rotate under the preliminary positioning, and when the shift fork shaft is placed, the connecting line of the two shifting rods is aligned with the cutting plane of the shift fork shaft; then the lifting seat descends, and during the descent of the rack, the toothed part drives the two semicircular gears to rotate, and the shifting member drives the shift fork shaft to rotate to a preset angle. Since the spacing between the two shifting rods is equal to the difference between the diameter of the shift fork shaft and the cutting depth of its cutting plane, the two shifting rods have a unique angle to be inserted into the shift fork shaft. When the two positioning frames are clamped, if the shifting rod does not match the shift fork shaft with the cutting plane, the shifting rod cannot be inserted into the shift fork shaft, and the elastic telescopic member connected to the shifting member will When compressed, the end of the toggle rod will fit against the outer wall of the fork shaft, and when the toothed portion of the rack drives the two semicircular gears to rotate, the two toggle rods will rotate around the outer wall of the fork shaft, and when the two toggle rods rotate to match the fork shaft with the cutting plane, the toggle rods are inserted into the fork shaft, and then the toggle rods continue to rotate and drive the fork shaft to rotate until it rotates to a preset angle; then, the two ends of the fork shaft are positioned by the positioning assembly; then the lifting seat continues to descend and the drill bit punches a hole on the fork shaft; after the drilling is completed, the lifting seat rises and the drill bit rises to above the fork shaft; then the positioning assembly positions and releases the two ends of the fork shaft; then the lifting seat continues to rise, and the rack drives the two semicircular gears to reset during the rising process, and resets them until the two semicircular gears are respectively located in the two semicircular grooves, so that the two positioning frames can be separated; then the two positioning frames are separated and the fork shaft with the drilling completed is removed to complete the processing. This type of fork shaft drilling processing equipment for automobile production can automatically complete the angle alignment between the radial hole and the chip surface, conveniently and quickly achieve precise positioning, reduce the tediousness of workers' operations, and reduce workers' labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the connection structure between the lifting platform and the positioning frame in an embodiment of the present invention.

[0017] Figure 3 Schematic diagram of the structure of the positioning frame in the embodiment of the present invention.

[0018] Figure 4 Schematic diagram of the structure of the lifting seat in the embodiment of the present invention.

[0019] Figure 5 Schematic diagram of the structure when the semicircular gear is meshing with the rack in an embodiment of the present invention.

[0020] Figure 6 It is a schematic diagram of the structure of the positioning component in an embodiment of the present invention.

[0021] Figure 7 It is a schematic diagram of the structure of the end positioning rod in an embodiment of the present invention.

[0022] Figure 8 A schematic diagram of a shift fork manufactured according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: Figures 1 to 8A fork shaft drilling processing equipment for automobile production includes a placing table 1, a positioning component 2, a lifting seat 3 and a drill bit 4. The lifting seat 3 is provided with a drill bit 4. Both sides of the placing table 1 are provided with positioning components 2 for positioning the two ends of the fork shaft. The placing table 1 includes a supporting portion 5, and the supporting portion 5 is provided with two positioning frames 6, one of which is rotatably connected to the supporting portion 5, or the two positioning frames 6 are rotatably connected to the supporting portion 5, and the supporting portion 5 is provided with an elastic member 7 with elastic force in the direction of splicing the two positioning frames 6, and both sides of the positioning frame 6 are provided with semicircular positioning openings 8 that can be spliced ​​to form a circular positioning opening, and the top of the positioning frame 6 is provided with an opening for the drill bit 4 to pass through; the two positioning frames 6 are provided with semicircular positioning portions 9, and the semicircular positioning portions 9 are provided with semicircular guide grooves 10, and the semicircular guide grooves 10 are provided with semicircular positioning portions 9. A semicircular gear 11 is slidably provided, wherein an elastic telescopic member 12 which can be extended and retracted in the radial direction is provided on the inner ring of the semicircular gear 11, and a toggle member 13 is connected to the elastic telescopic member 12 near the center end thereof, and the toggle member 13 comprises a connecting seat 14 and two toggle rods 15 which are arranged on the connecting seat 14 and are in the same direction as the elastic telescopic member 12, and the spacing between the two toggle rods 15 is equal to the difference between the diameter of the fork shaft and the cutting depth of its cutting plane b, and a rack 16 which is arranged along the lifting direction is provided on the lifting seat 3, and a toothed portion 17 of the rack 16 is located below the drill bit 4, and when the lifting seat 3 descends, the rack 16 meshes with the semicircular gear 11 from the opening side of the positioning frame 6, and when the toothed portion 17 completely passes through the two semicircular gears 11, the two semicircular gears 11 rotate at least one circle, and the toggle member 13 drives the fork shaft to rotate to a preset angle.When drilling a fork shaft for automobile production, the fork shaft is placed between the two positioning frames 6 and clamped, and the two semicircular positioning parts 9 are used to tighten the fork shaft for preliminary positioning. The fork shaft can still rotate under the preliminary positioning. When the fork shaft is placed, the connecting line of the two toggle rods 15 is aligned with the cutting plane b of the fork shaft; then the lifting seat 3 descends, and the toothed part 17 drives the two semicircular gears 11 to rotate during the descending process of the rack 16, and the toggle member 13 drives the fork shaft to rotate to a preset angle. Since the spacing between the two toggle rods 15 is equal to the difference between the diameter of the fork shaft and the cutting depth of its cutting plane b, the two toggle rods 15 have a unique angle to be inserted into the fork shaft. When the two positioning frames 6 are clamped, if the toggle rod 15 does not match the fork shaft with the cutting plane b, the toggle rod 15 cannot be inserted into the fork shaft, and the elastic telescopic member 12 connected to the toggle member 13 will be compressed, and the end of the toggle rod 15 When the toothed portion 17 of the rack 16 drives the two semicircular gears 11 to rotate, the two toggle rods 15 rotate around the outer wall of the fork shaft. When the two toggle rods 15 rotate to match the fork shaft with the cutting plane b, the toggle rod 15 is inserted into the fork shaft, and then the toggle rod 15 continues to rotate and drives the fork shaft to rotate until it rotates to a preset angle; then, the two ends of the fork shaft are positioned by the positioning assembly 2; then the lifting seat 3 continues to descend and the drill bit 4 punches a hole on the fork shaft; after the drilling is completed, the lifting seat 3 rises and the drill bit 4 rises above the fork shaft; then the positioning assembly 2 positions and releases the two ends of the fork shaft; then the lifting seat 3 continues to rise, and the rack 16 drives the two semicircular gears 11 to reset during the rising process, and resets them until the two semicircular gears 11 are respectively located in the two semicircular grooves, so that the two positioning frames 6 can be separated; then the two positioning frames 6 are separated and the fork shaft with the drilling completed is removed to complete the processing. This type of fork shaft drilling processing equipment for automobile production can automatically complete the angle alignment between the radial hole and the chip surface, conveniently and quickly achieve precise positioning, reduce the tediousness of workers' operations, and reduce workers' labor intensity.

[0024] In this embodiment, the first transverse slide rail 18 is provided in both positioning frames 6, the first slider 19 is connected to the two semicircular positioning parts 9, the first slider 19 is slidably provided on the first transverse slide rail 18, the first slider 19 is screwed with a bolt, and the first transverse slide rail 18 is tightened by the bolt to position the first slider 19, and the lifting seat 3 is provided with a second transverse slide rail 20, the second transverse slide rail 20 is slidably provided with a second slider 21, the second slider 21 is provided with a rack 16, the second slider 21 is screwed with a bolt, and the second slider 21 is tightened by the bolt to position the second slider 21. The adoption of this structure makes the axial position of the semicircular positioning part 9 in the positioning frame 6 adjustable, and the axial position of the rack 16 on the lifting seat 3 adjustable. Before performing batch punching of the fork shaft, the positions of the semicircular positioning part 9 and the rack 16 are adjusted first, so as to adapt to the processing of various fork shafts with different cutting planes b and drilling spacing on the fork shaft.

[0025] In this embodiment, the rack 16 is detachably connected to the second slider 21 by bolts. With this structure, the rack 16 can be easily replaced, and the rotation angle of the semicircular gear 11 can be adjusted when the lifting seat 3 is pressed down by replacing the rack 16, thereby changing the angle of the cutting plane b when the fork shaft is punched, thereby adapting to the processing of various fork shafts with different punching angles and cutting plane b.

[0026] In this embodiment, a guide groove 22 is provided on the connecting seat 14, wherein one toggle rod 15 is fixed at the end of the guide groove 22, and the other toggle rod 15 is slidably provided in the guide groove 22, and a first screw rod 23 is rotatably provided in the guide groove 22, and one end of the first screw rod 23 extends out of the guide groove 22 and is connected to an adjusting knob 24, and the adjusting knob 24 is rotated to adjust the distance between the two toggle rods 15. With this structure, the distance between the two toggle rods 15 can be adjusted by adjusting the knob 24, so as to adapt to the processing of the fork shaft with different cutting depths of the cutting plane b.

[0027] In this embodiment, the elastic member 7 is a torsion spring disposed on the rotation axis of the positioning frame 6 , and two ends of the torsion spring are respectively fixed on the support portion 5 and the rotation axis of the positioning frame 6 .

[0028] In this embodiment, the two positioning frames 6 are assembled to form a protective cover with an open top and sealed sides. A debris discharge channel 25 is provided at the bottom of the positioning frame 6. A debris collection frame 26 is detachably connected to the bottom of the debris discharge channel 25. An exhaust port 27 is provided at the top of the debris collection frame 26. An extrusion cover 28 matching the protective cover is provided on the lifting seat 3. When the lifting seat 3 is pressed downward, the extrusion cover 28 contacts the protective cover and continues to move downward, forming an airflow flowing from the protective cover to the debris collection frame 26 to drive debris into the debris collection frame 26. The structure can prevent debris from splashing during the drilling process, and the gas in the extrusion cover 28 will be squeezed out during the descent of the lifting seat 3. During the drilling process, an airflow can be generated from the protective cover to the debris collection frame 26 to drive the debris into the debris collection frame 26. Since the exhaust port 27 is located at the top of the debris collection frame 26, the debris itself has a certain gravity, and the debris will be collected in the debris collection frame 26, and only air will be discharged from the exhaust port 27; and during the ascent of the lifting seat 3, since the semicircular gear 11 will rotate the fork shaft at least one circle during the reset process, the debris that may fall on the upper surface of the fork shaft will also fall into the protective cover with the rotation of the fork shaft, and finally be collected by the debris collection frame 26. The debris can be conveniently poured out by disassembling the debris collection frame 26. During the descent of the extrusion cover 28, the extrusion cover 28 is sleeved on the outside of the protective cover. In order to improve the sealing performance, an elastic sealing ring is provided on the inner wall of the extrusion cover 28 to prevent the gas from being discharged from the gap between the extrusion cover 28 and the protective cover during the descent of the extrusion cover 28.

[0029] In this embodiment, guide holes 29 are provided on both sides of the extrusion cover 28, and sliding plates 30 are provided in the two guide holes 29. A motor and a drill bit 4 driven by the motor are fixedly provided on the sliding plates 30. With this structure, the drilling position of the drill bit 4 on the fork shaft can be adjusted by moving the sliding plates 30.

[0030] In this embodiment, a lifting platform 31 is provided at the bottom of the placement table 1, and a plurality of first guide rods 32 are vertically penetrated on the lifting platform 31. The top of the first guide rod 32 is fixedly connected to the support part 5, and a first limiting part 33 is provided at the bottom of the first guide rod 32. A first spring 34 is sleeved on the first guide rod 32 between the support part 5 and the lifting platform 31. A second guide rod 35 is vertically provided at the bottom of the lifting platform 31. The second guide rod 35 is movably arranged in the guide cylinder 36. Movable brackets 37 are provided on both sides of the lifting platform 31. A guide rail 38 is provided at the bottom of the lifting platform 31. The movable bracket 37 is slidably arranged on the guide rail 38. A second screw 39 driven by a motor is provided in parallel with the guide rail 38. The movable bracket 37 is threadedly matched with the threads on both sides of the second screw 39 in opposite directions. A plurality of third guide rods 40 are vertically provided on the top of the lifting seat 3. The top of the third guide rod 40 passes through the first fixed bracket 41, a second limiting portion 42 is provided on the top of the third guide rod 40, a second spring 43 is sleeved on the third guide rod 40 between the first fixed bracket 41 and the second limiting portion 42, a first inclined surface 44 for pushing the lifting platform 31 to rise and a second inclined surface 45 for pushing the lifting seat 3 to descend are provided on the movable bracket 37, the positioning assembly 2 includes an end positioning rod 46 penetrated by the movable bracket 37, a first tension spring 47 is provided between the outer end of the end positioning rod 46 and the movable bracket 37, a plurality of elastic clamping sheets 48 are provided around the end positioning rod 46, and a wedge block 49 is provided outside the elastic clamping sheet 48; the positioning assembly 2 includes a fourth guide rod 50 which is in the same direction as the guide rail 38, a sliding member 51 is slidably provided on the fourth guide rod 50, a limiting ring 52 is provided on the sliding member 51, and a second tension spring 53 is provided between the sliding member 51 and the end of the fourth guide rod 50 close to the movable bracket 37. With the above structure, the second screw 39 is driven to rotate by the motor during processing, so that the two movable brackets 37 can move toward or away from each other; during the processing, the fork shaft is clamped between the two positioning frames 6, and the two semicircular positioning parts 9 are used to tighten the fork shaft for preliminary positioning. Under the preliminary positioning, the fork shaft can still rotate, and then the second screw 39 is driven to rotate by the motor, and the two movable brackets 37 move toward each other, the first inclined surface 44 drives the lifting platform 31 and the placing table 1 to rise together, the second inclined surface 45 drives the lifting seat 3 to descend, and the elastic clamping piece 48 moves toward the limit ring 52.During this process, first, the end positioning rods 46 on both sides press against the fork shaft to automatically adjust the position of the fork shaft, so that the connection line of the two shifting rods 15 is aligned with the cutting plane b of the fork shaft, and then the rack 16 drives the semicircular gear 11 to rotate, and finally rotates the fork shaft to a preset angle; then the outer wall of the elastic clamping piece 48 and the limiting ring 52 are deformed and closed to clamp the fork shaft; the two movable brackets 37 continue to move toward each other, and the fork shaft no longer rises due to the limit of the elastic clamping piece 48, the lifting platform 31 continues to rise and compresses the first spring 34, and the elastic clamping piece 48 and the limiting ring 52 move toward the center direction of the fork shaft together, the lifting seat 3 continues to descend, and the drill bit 4 drills the fork shaft; after the drilling is completed, the motor drives the second screw 39 to reverse so that the two movable The bracket 37 moves in opposite directions, at which time the lifting seat 3 rises, the drill bit 4 leaves the fork shaft, the elastic clamping piece 48 and the limit ring 52 move together in the direction away from the center of the fork shaft, and the lifting platform 31 descends; after the elastic clamping piece 48 releases the fork shaft, the lifting platform 31 and the placement table 1 descend together, and the toothed portion 17 of the rack 16 begins to mesh with the semicircular gear 11, resetting the semicircular gear 11, and then the fork shaft with the completed drilling can be removed. The above structure can realize the forward and reverse rotation of the second screw 39 only by the motor to realize the processing of the fork shaft in sequence according to the set steps, and the end positioning rods 46 on both sides can support the fork shaft and automatically adjust the position of the fork shaft so that the connecting line of the two shifting rods 15 is aligned with the cutting plane b of the fork shaft.

[0031] In this embodiment, first rollers 54 cooperating with the first inclined surface 44 are rotatably provided at both ends of the lifting platform 31, and second rollers 55 cooperating with the second inclined surface 45 are rotatably provided at both ends of the lifting seat 3. This structure is used to reduce the friction between the lifting platform 31 and the first inclined surface 44, and the friction between the lifting seat 3 and the second inclined surface 45, so that the cooperation between the movable bracket 37 and the lifting platform 31 and the lifting seat 3 is smoother.

[0032] The processing method of the fork shaft drilling processing equipment for automobile production comprises the following steps: S1: the fork shaft is installed into two positioning frames 6 and positioned by the circular positioning opening, and the connecting line of the two shifting rods 15 is aligned with the cutting plane b of the fork shaft during the installation; S2: the lifting seat 3 descends, and the toothed portion 17 drives the two semicircular gears 11 to rotate during the descending process of the rack 16, and the shifting member 13 drives the fork shaft to rotate to a preset angle; S3: the two ends of the fork shaft are positioned by the positioning component 2; S4: the lifting seat 3 continues to descend and the drill bit 4 drills a hole on the fork shaft; S5: the lifting seat 3 rises and the drill bit 4 rises to above the fork shaft; S6: the positioning component 2 is positioned to release the two ends of the fork shaft; S7: the lifting seat 3 continues to rise, and the rack 16 drives the two semicircular gears 11 to reset during the rising process; S8: the fork shaft with the drilling completed is removed.

[0033] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fork shaft drilling processing device for automobile production, comprising a placement table (1), a positioning component (2), a lifting seat (3) and a drill bit (4), wherein the lifting seat (3) is provided with a drill bit (4), and both sides of the placement table (1) are provided with positioning components (2) for positioning the two ends of the fork shaft, characterized in that: The placement table (1) comprises a support portion (5), on which two positioning frames (6) are arranged, at least one of the positioning frames (6) is rotatably connected to the support portion (5), and on which an elastic member (7) having elastic force in the direction of joining the two positioning frames (6) is arranged, and on both sides of the positioning frames (6) are arranged semicircular positioning openings (8) which can be joined together to form a circular positioning opening, and on the top of the positioning frames (6) is arranged an opening for the drill bit (4) to pass through; both positioning frames (6) are provided with semicircular positioning portions (9), and the semicircular positioning portions (9) are provided with semicircular guide grooves (10), and a semicircular gear (11) is slidably arranged in the semicircular guide grooves (10), and an elastic telescopic member (12) which can be extended and retracted along the radial direction is arranged on the inner ring of one of the semicircular gears (11), and the elastic telescopic member (12) can be extended and retracted in the radial direction. The retractable member (12) is connected to a toggle member (13) near the center end thereof. The toggle member (13) comprises a connecting seat (14) and two toggle rods (15) arranged on the connecting seat (14) in the same direction as the elastic retractable member (12). The spacing between the two toggle rods (15) is equal to the difference between the diameter of the shift fork shaft and the cutting depth of its cutting plane. The lifting seat (3) is provided with a rack (16) arranged along the lifting direction. The toothed portion (17) of the rack (16) is located below the drill bit (4). When the lifting seat (3) descends, the rack (16) meshes with the semicircular gear (11) from the opening side of the positioning frame (6). When the toothed portion (17) completely passes through the two semicircular gears (11), the two semicircular gears (11) rotate at least one circle, and the toggle member (13) drives the shift fork shaft to rotate to a preset angle.

2. The fork shaft drilling equipment for automobile production according to claim 1, characterized in that: A first transverse slide rail (18) is provided in each of the two positioning frames (6), and a first slider (19) is connected to the two semicircular positioning parts (9). The first slider (19) is slidably provided on the first transverse slide rail (18), and a bolt is screwed on the first slider (19). The first slider (19) is positioned by tightening the first transverse slide rail (18) with the bolt. A second transverse slide rail (20) is provided on the lifting seat (3), and a second slider (21) is slidably provided on the second transverse slide rail (20). The rack (16) is provided on the second slider (21), and a bolt is screwed on the second slider (21). The second transverse slide rail (20) is positioned by tightening the second slider (21) with the bolt.

3. The fork shaft drilling equipment for automobile production according to claim 2, characterized in that: The rack (16) and the second sliding block (21) are detachably connected via bolts.

4. The fork shaft drilling equipment for automobile production according to claim 1, characterized in that: A guide groove (22) is provided on the connecting seat (14), wherein one of the toggle rods (15) is fixed at an end of the guide groove (22), and the other toggle rod (15) is slidably arranged in the guide groove (22), and a first screw rod (23) is rotatably arranged in the guide groove (22), and one end of the first screw rod (23) protrudes from the guide groove (22) and is connected to an adjusting knob (24), and the adjusting knob (24) is rotated to adjust the distance between the two toggle rods (15).

5. The fork shaft drilling equipment for automobile production according to claim 1, characterized in that: The elastic member (7) is a torsion spring arranged on the rotation axis of the positioning frame (6), and two ends of the torsion spring are respectively fixed to the support portion (5) and the rotation axis of the positioning frame (6).

6. The fork shaft drilling equipment for automobile production according to claim 1, characterized in that: The two positioning frames (6) are assembled to form a protective cover with an open top and sealed sides. A debris discharge channel (25) is provided at the bottom of the positioning frame (6). A debris collection frame (26) is detachably connected to the bottom of the debris discharge channel (25). An exhaust port (27) is provided at the top of the debris collection frame (26). An extrusion cover (28) matching the protective cover is provided on the lifting seat (3). When the lifting seat (3) is pressed downward, the extrusion cover (28) contacts the protective cover and continues to move downward, forming an airflow flowing from the inside of the protective cover to the debris collection frame (26) to drive debris into the debris collection frame (26).

7. The fork shaft drilling equipment for automobile production according to claim 6, characterized in that: Guide holes (29) are provided on both sides of the extrusion cover (28), sliding plates (30) are provided in the two guide holes (29), and a motor and the drill bit (4) driven by the motor are fixedly provided on the sliding plates (30).

8. The fork shaft drilling equipment for automobile production according to claim 1, characterized in that: A lifting platform (31) is provided at the bottom of the placement table (1), and a plurality of first guide rods (32) are vertically penetrated on the lifting platform (31). The top of the first guide rod (32) is fixedly connected to the support portion (5), and a first limiting portion (33) is provided at the bottom of the first guide rod (32). A first spring (34) is sleeved on the first guide rod (32) between the support portion (5) and the lifting platform (31). A second guide rod (35) is vertically provided at the bottom of the lifting platform (31), and the second guide rod (35) is movably arranged on the guide cylinder ( 36), movable brackets (37) are arranged on both sides of the lifting platform (31), a guide rail (38) is arranged at the bottom of the lifting platform (31), the movable bracket (37) is slidably arranged on the guide rail (38), a second screw rod (39) driven by a motor is arranged parallel to the guide rail (38), the movable bracket (37) and the second screw rod (39) are screwed in opposite directions on both sides, a plurality of third guide rods (40) are vertically arranged on the top of the lifting seat (3), the top of the third guide rod (40) passes through the first fixed bracket (41), and the third guide rods (40) are screwed together. A second limiting portion (42) is provided at the top of the three guide rods (40); a second spring (43) is sleeved on the third guide rod (40) between the first fixed bracket (41) and the second limiting portion (42); a first inclined surface (44) capable of pushing the lifting platform (31) upward and a second inclined surface (45) capable of pushing the lifting seat (3) downward are provided on the movable bracket (37); the positioning assembly (2) comprises an end positioning rod (46) penetrating the movable bracket (37); an outer end of the end positioning rod (46) is in contact with the movable bracket (37); ), a first tension spring (47) is arranged between the end positioning rod (46), a plurality of elastic clamping sheets (48) are arranged around the end positioning rod (46), and a wedge block (49) is arranged outside the elastic clamping sheet (48); the positioning assembly (2) includes a fourth guide rod (50) in the same direction as the guide rail (38), a sliding member (51) is slidably arranged on the fourth guide rod (50), a limiting ring (52) is arranged on the sliding member (51), and a second tension spring (53) is arranged between the sliding member (51) and the end of the fourth guide rod (50) close to the side of the movable bracket (37).

9. The fork shaft drilling equipment for automobile production according to claim 8, characterized in that: The lifting platform (31) has first rollers (54) rotatably disposed at both ends thereof and matched with the first inclined surface (44), and the lifting seat (3) has second rollers (55) rotatably disposed at both ends thereof and matched with the second inclined surface (45).

10. A processing method for a fork shaft drilling processing equipment for automobile production according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The shift fork shaft is installed into the two positioning frames (6) and positioned by the circular positioning openings. When installing, the connecting line of the two shifting rods (15) is aligned with the cutting plane of the shift fork shaft; S2: The lifting seat (3) descends, and the toothed portion (17) drives the two semicircular gears (11) to rotate during the descending process of the rack (16), and the shifting member (13) drives the shift fork shaft to rotate to a preset angle; S3: The two ends of the shift fork shaft are positioned by the positioning assembly (2); S4: The lifting seat (3) continues to descend and the drill bit (4) drills a hole on the shift fork shaft; S5: The lifting seat (3) rises and the drill bit (4) rises to above the shift fork shaft; S6: The positioning assembly (2) is positioned to release the two ends of the shift fork shaft; S7: The lifting seat (3) continues to rise, and the rack (16) drives the two semicircular gears (11) to reset during the ascending process; S8: The shift fork shaft with the hole drilled is removed.

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