Automobile part welding positioning device

Abstract

The utility model discloses an automobile part welding positioning device, which belongs to the field of automobile processing, and comprises two bearing vertical plates, the bottom ends of the bearing vertical plates are connected through a connecting plate, the top ends of the bearing vertical plates are rotatably provided with a torsion sleeve, the inner side of the torsion sleeve is slidably provided with an automobile beam, and the automobile beam is provided with a clamping groove. Two screw valves are arranged at the top end of the torsion sleeve, and the torsion sleeve is installed at the output end of the positioning motor. When the device is used, a to-be-processed automobile beam is plugged into the torsion sleeve from the middle of the torsion sleeve and locked by rotating the screw valve, the two ends of the automobile beam can alternately reach the machining position, the servo motor drives the conversion piece to move through the threaded rod, and the conversion piece can horizontally move back and forth along the track of the reversing guide rail; in the translation process of the conversion piece, the cutting motor drives the grinding and cutting sleeve and the grinding stone at the top end of the grinding and cutting sleeve to rotate at a high speed, and the grinding stone cuts into the side wall of the automobile beam to conduct grooving operation in the high-speed rotating process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile processing, in particular to a kind of automobile parts welding positioning device. BACKGROUND

[0002] With the development of industrial technology, modern automobile processing technology develops more and more perfect, and the bearing beam of automobile is the core component in the manufacture of locomotive, and the bearing beam needs to be processed by many large processes before assembly, including slotting, drilling, bending and other operations. After these operations are completed, there are many burrs on the edge of the processed position, and a stable clamp is needed when removing these impurities.

[0003] The existing device has defects when in use. Firstly, the slotting mechanism of the device is complex, and the workpiece needs to be moved to the work station every time it is slotted. Frequent positioning of the workpiece not only leaves many pressure marks and scratches on the workpiece, but also causes inaccurate positioning. Secondly, there are many burrs on the edge of the processed position. If the workpiece shakes when the worker removes the burrs, the edge of the workpiece will be damaged, and even the workpiece will be scrapped. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at the deficiencies of the prior art, and provides an automobile parts welding positioning device to solve the above technical problems.

[0005] The utility model provides the following technical scheme: an automobile parts welding positioning device, comprising two bearing vertical plates, the bottom end of the bearing vertical plate is connected through a connecting plate, the top end of the bearing vertical plate is rotatably installed with a torsion sleeve, the inner side of the torsion sleeve is slidably installed with an automobile beam, the top end of the torsion sleeve is provided with two screw valves, the end of the screw valve is provided with a rubber pad pressed on the top surface of the automobile beam, the torsion sleeve is installed on the output end of a positioning motor, one side of the bearing vertical plate is provided with a slotting table, the slotting table is provided with a slotting mechanism, the other side of the bearing vertical plate is provided with a vertical plate, the vertical plate is provided with a grinding and cutting assembly, the lower side of the bearing vertical plate is provided with a clamping plate, the clamping plate is provided with a clamp assembly, the slotting mechanism comprises a reversing plate rotatably arranged at the top end of the slotting table, the reversing plate is connected to an angle torsion mechanism, and the top end of the reversing plate is provided with two reversing guide rails, the reversing guide rails are slidably installed with a conversion sheet, the conversion sheet is connected to a straight-line propulsion assembly, the bottom end of the conversion sheet is provided with a cutting motor, and the output end of the cutting motor is installed with a grinding and cutting sleeve and a grinding stone.

[0006] Further, the middle of the grinding and cutting sleeve and the grinding stone is provided with a threaded channel, and the lower end of the grinding stone is provided with a threaded head penetrating the threaded channel.

[0007] Further, the angle twisting mechanism comprises a gear disc at the end of the slotted base, the reversing plate is provided with a plug rod opposite to the gear disc, one side of the gear disc is provided with a reduction gear, the reduction gear and the gear disc are in mesh, and the reduction gear is installed on the output end of the directional motor.

[0008] Further, the linear propulsion assembly comprises a servo motor at the top end of the reversing plate, a threaded rod is installed on the output end of the servo motor, and a nut block is arranged at the bottom end of the conversion sheet and sleeved on the threaded rod.

[0009] Further, the grinding assembly comprises two clamping guide rails on the vertical plate, two groups of clamping sliding blocks are slidably installed on the clamping guide rails, clamping tables are arranged on the side walls of the clamping sliding blocks, a shallow slot mechanism is arranged on the side wall of the clamping table, and the two clamping tables are connected to a clamping power mechanism, the shallow slot mechanism comprises two translation plates on the side wall of the clamping table, a drill rod is rotatably installed on one side of the translation plate, a grinding head is detachably installed at the end of the drill rod, and the drill rod is connected to a grinding power mechanism.

[0010] Further, the grinding power mechanism comprises a linkage wheel disc at the end of the drill rod, and the linkage wheel discs are connected through a linkage belt, and one of the linkage wheel discs is installed on the output end of the slotting motor.

[0011] Further, the clamping power mechanism comprises a reserved slot in the middle of the vertical plate, a plane shaft seat is fixedly installed on the inner side wall of the reserved slot, a stepping motor is installed on one side of the plane shaft seat, a long arm is installed on the output end of the stepping motor, a traction pull rod is arranged on the side wall of the clamping table and inserted into the middle of the reserved slot, and the traction pull rod and the end of the long arm are connected through a short arm.

[0012] Further, the clamp assembly comprises a cantilever plate above the clamping plate, the two ends of the cantilever plate are fixedly connected with the side wall of the clamping plate through supports, five pressure holes in a linear array are arranged on the cantilever plate, a contact rod is slidably inserted into each pressure hole, a pressing wheel is arranged at the top end of the contact rod, a bandage is pulled out from the left support, a winding shaft seat is arranged on the right support, a winding roller is arranged on one side of the winding shaft seat, the other end of the bandage is connected to the winding roller, a torsion handle is arranged on one side of the winding roller, the torsion handle is locked on the winding shaft seat through a pin rod, and the bandage is pressed on the side wall of the pressing wheel.

[0013] Further, a reset spring is sleeved on the outer side of the contact rod, the bottom end of the reset spring is fixedly connected with the cantilever plate, the top end of the reset spring is connected with the pressing wheel, the bottom end of the contact rod is provided with a contact rubber rod, the length of the middle contact rod is twenty centimeters, the length of the two side contact rods is sixteen centimeters, and the length of the two most side contact rods is ten centimeters.

[0014] The utility model discloses the following beneficial effects:

[0015] The device in use, the automobile beam from the torsion sleeve in the middle of the plug-in and rotating screw valve will be locked, the positioning motor can drive the torsion sleeve and its inside automobile beam to twist one hundred and eighty degrees to change the station, the automobile beam two end heads can be alternately reached to the processing position, the servo motor drives the conversion piece to move through the threaded rod, the conversion piece will move back and forth along the trajectory of the reversing guide rail, in the process of translation, the cutting motor drives the grinding sleeve and the polishing stone at the top to rotate at high speed, the polishing stone rotates at high speed in the process of cutting into the sidewall of the automobile beam to groove, the polishing stone can be disassembled and replaced with new or different diameter model after long time use, the directional motor drives the gear plate to rotate through the reduction gear, the reversing plate twists ninety degrees to change the station with the gear plate, the conversion piece can be perpendicular to the automobile beam, and then the polishing stone can be attached to the edge of the automobile beam to polish. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the schematic view of the utility model.

[0017] Figure 2 It is the schematic view of the utility model.

[0018] Figure 3 It is the schematic view of the utility model.

[0019] Figure 4 It is the schematic view of the utility model.

[0020] Figure 5 It is the schematic view of the utility model.

[0021] Figure 6 It is the schematic view of the utility model.

[0022] Figure 7 It is the schematic view of the utility model.

[0023] Figure 8 It is the schematic view of the utility model.

[0024] Figure 9 It is the schematic view of the utility model.

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] Load-bearing vertical plate 1, connecting plate 101, torsion sleeve 102, positioning motor 103, screw valve 104, automobile beam 2, vertical plate 3, clamping guide rail 301, clamping slider 302, clamping table 303, reserved groove 304, stepping motor 305, translation plate 306, linkage wheel disc 307, linkage belt 308, drill rod 309, polishing head 310, slotting motor 311, flat shaft seat 312, long arm 313, short arm 314, traction pull rod 315, slotting table 4, reversing plate 401, reversing guide rail 402, conversion sheet 403, grinding sleeve 404, polishing stone 405, servo motor 406, threaded rod 407, cutting motor 408, speed reducer 409, directional motor 410, gear disc 411, clamping plate 5, cantilever beam plate 501, support 502, bandage 503, winding shaft seat 504, winding roller 505, torsion handle 506, abutting rod 507, reset spring 508, pressing wheel 509, abutting rubber rod 510. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0028] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] REFERENCE Figures 1 to 9An automobile part welding positioning device is shown, which comprises two load-bearing vertical plates 1, the bottom ends of the load-bearing vertical plates 1 are connected through a connecting plate 101, the top ends of the load-bearing vertical plates 1 are rotatably installed with a torsion sleeve 102, the inner side of the torsion sleeve 102 is slidably installed with an automobile beam 2, the top end of the torsion sleeve 102 is provided with two screw valves 104, the end of the screw valve 104 is provided with a rubber pad that is pressed on the top surface of the automobile beam 2, the torsion sleeve 102 is installed on the output end of a positioning motor 103, one side of the load-bearing vertical plate 1 is provided with a slotted table 4, the slotted table 4 is provided with a slotting mechanism, the other side of the load-bearing vertical plate 1 is provided with a vertical plate 3, the vertical plate 3 is provided with a grinding and cutting assembly, the lower side of the load-bearing vertical plate 1 is provided with a clamping plate 5, the clamping plate 5 is provided with a clamp assembly, the slotting mechanism comprises a reversing plate 401 that is rotatably installed at the top end of the slotted table 4, the reversing plate 401 is connected to an angle twisting mechanism, and the top end of the reversing plate 401 is provided with two reversing guide rails 402, the reversing guide rails 402 are slidably installed with a conversion sheet 403, the conversion sheet 403 is connected to a linear propulsion assembly, the bottom end of the conversion sheet 403 is provided with a cutting motor 408, and the output end of the cutting motor 408 is installed with a grinding and cutting sleeve 404, the grinding and cutting sleeve 404 and the grinding stone 405, the automobile beam 2 to be processed is inserted into the middle of the torsion sleeve 102, and the screw valve 104 is rotated to lock it, at this time the positioning motor 103 can drive the torsion sleeve 102 and the automobile beam 2 inside it to twist one hundred and eighty degrees to change the position, so that the two ends of the automobile beam 2 can be alternately moved to the processing position, while the grinding and cutting sleeve 404 and the grinding stone 405 are rotating at high speed, the conversion sheet 403 is pushed back and forth along the reversing guide rail 402, and the grinding stone 405 cuts into the side wall of the automobile beam 2 to perform slotting work during high-speed rotation, after the reversing plate 401 is turned by ninety degrees, the grinding stone 405 can be attached to the edge of the automobile beam 2 to perform grinding work.

[0030] As shown in Figure 1 , 2 The middle of the grinding and cutting sleeve 404 and the grinding stone 405 is provided with a threaded channel, the lower end of the grinding stone 405 is provided with a threaded head that penetrates the threaded channel, the grinding stone 405 can be disassembled and replaced with a new one or a different diameter model after a long time of use, the threaded channel inside the grinding stone 405 can be filled with lead blocks to increase the mass of the grinding stone 405, and the high-speed rotation of the grinding stone 405 has high stability.

[0031] As shown in Figure 1 , 8As shown, the angle twisting mechanism includes a gear disc 411 at the bottom end of the slotting table 4, the reversing plate 401 is provided with a plug rod which is opposite to the gear disc 411, one side of the gear disc 411 is provided with a speed reducer 409, the speed reducer 409 and the gear disc 411 are engaged with each other, the speed reducer 409 is installed on the output end of the directional motor 410, the directional motor 410 drives the gear disc 411 to rotate through the speed reducer 409, the reversing plate 401 is reversed by 90 degrees to switch the working position, and the conversion sheet 403 can be vertically moved relative to the automobile beam 2.

[0032] As shown in Figure 1 , 7 , the linear propulsion assembly includes a servo motor 406 at the top end of the reversing plate 401, a threaded rod 407 is installed on the output end of the servo motor 406, a nut block is arranged at the bottom end of the conversion sheet 403 and is sleeved on the threaded rod 407, the servo motor 406 drives the conversion sheet 403 to move through the threaded rod 407, the conversion sheet 403 can be translated back and forth along the track of the reversing guide rail 402, and the servo motor 406 provides power for the conversion sheet 403 to move back and forth.

[0033] As shown in Figure 1 , 4 , the grinding assembly includes two clamping guide rails 301 on the vertical plate 3, two groups of clamping sliding blocks 302 are slidingly installed on the clamping guide rails 301, clamping tables 303 are arranged on the side walls of the clamping sliding blocks 302, the side walls of the clamping tables 303 are provided with an opening and shallow groove mechanism, and the two clamping tables 303 are connected to a clamping power mechanism, the opening and shallow groove mechanism includes two translation plates 306 on the side walls of the clamping tables 303, drill rods 309 are rotatably installed on one side of the translation plates 306, polishing heads 310 are detachably installed on the end of the drill rods 309, the drill rods 309 are connected to a grinding power mechanism, and the two clamping tables 303 are simultaneously clamped to the middle position along the clamping guide rails 301, at this time, the drill rods 309 and the polishing heads 310 at the end thereof slowly cut into the side wall of the automobile beam 2 to perform the opening and shallow groove operation, and the polishing heads 310 are regularly replaced with new ones.

[0034] As shown in Figure 1 , 5 , the grinding power mechanism includes linkage wheel discs 307 at the end of the drill rods 309, the linkage wheel discs 307 are connected through linkage belts 308, one of the linkage wheel discs 307 is installed on the output end of a slotting motor 311, the slotting motor 311 drives the two linkage wheel discs 307 to rotate through the linkage belts 308, and the drill rods 309 rotate together with the linkage wheel discs 307, achieving the linkage effect.

[0035] As shown in Figure 1 , 6As shown, the clamping power mechanism includes a reserved groove 304 in the middle of the upright plate 3, a flat shaft seat 312 is fixedly installed on the inner side wall of the reserved groove 304, one side of the flat shaft seat 312 is installed with a stepping motor 305, the output end of the stepping motor 305 is installed with a long arm 313, the side wall of the clamping table 303 is provided with a traction pull rod 315 inserted in the middle of the reserved groove 304, the traction pull rod 315 and the end of the long arm 313 are connected through a short arm 314, the stepping motor 305 drives the clamping table 303 to fold in the middle through the long arm 313 and the short arm 314, and the opening depth of the polishing head 310 is controlled by the torsion angle of the stepping motor 305.

[0036] As shown in Figure 1 , 8 As shown, the clamp assembly includes a cantilever beam plate 501 above the clamping plate 5, the two ends of the cantilever beam plate 501 are fixedly connected with the side wall of the clamping plate 5 through the brackets 502, the cantilever beam plate 501 is provided with five pressure holes arranged in a straight line, a contact rod 507 is slidably inserted in each pressure hole, the top end of the contact rod 507 is provided with a pressing wheel 509, the left end of the bracket 502 is pulled out with a bandage 503, the right end of the bracket 502 is provided with a winding shaft seat 504, one side of the winding shaft seat 504 is provided with a winding roller 505, the other end of the bandage 503 is connected to the winding roller 505, one side of the winding roller 505 is provided with a torsion handle 506, the torsion handle 506 is locked on the winding shaft seat 504 through a pin rod, the bandage 503 is pressed on the side wall of the pressing wheel 509, the finished automobile beam 2 is taken off and placed on the top surface of the clamping plate 5, at this time the staff manually rotates the torsion handle 506 and the winding roller 505, the winding roller 505 starts to pull and tighten the bandage 503, the bandage 503 will be pressed on all the pressing wheels 509, and then the contact rod 507 and the contact rubber rod 510 at the bottom end can be pressed on the top surface of the automobile beam 2 for locking operation, the staff scrapes off the metal flash at the fixed position, and the contact rubber rod 510 is replaced after a long time of pressing and deformation.

[0037] As shown in Figure 1 , 8 As shown, the contact rod 507 is sleeved with a reset spring 508 on the outside, the bottom end of the reset spring 508 is fixedly connected with the cantilever beam plate 501, the top end of the reset spring 508 is connected with the pressing wheel 509, the bottom end of the contact rod 507 is provided with a contact rubber rod 510, the length of the middle contact rod 507 is twenty centimeters, the length of the two side contact rods 507 is sixteen centimeters, and the length of the two most side contact rods 507 is ten centimeters, the bandage 503 exerts pressure on each pressing wheel 509 when it is straightened, and when the bandage 503 is loosened, the contact rod 507 is lifted to the original height through the reset spring 508.

[0038] including the following steps:

[0039] S1. The automobile beam 2 to be processed is inserted into the middle of the torsion sleeve 102, and the screw valve 104 is rotated to lock it. At this time, the positioning motor 103 can drive the torsion sleeve 102 and the automobile beam 2 inside it to rotate 180 degrees to change the position, so that both ends of the automobile beam 2 can be alternately positioned for processing. The servo motor 406 drives the conversion plate 403 to move through 607, and the conversion plate 403 moves back and forth along the track of the reversing guide rail 402. During the translation process, the cutting motor 408 drives the grinding sleeve 404 and the grinding stone 405 at the top of the grinding sleeve 404 to rotate at high speed. The grinding stone 405 cuts into the side wall of the automobile beam 2 to groove during high-speed rotation. The grinding stone 405 can be replaced with a new one or a different diameter model after a long time of use. The directional motor 410 drives the gear plate 411 to rotate through the reduction gear 409, and the reversing plate 401 is twisted 90 degrees to change the position with the gear plate 411. The conversion plate 403 can move vertically relative to the automobile beam 2, and the grinding stone 405 can be attached to the edge of the automobile beam 2 for grinding work;

[0040] S2. The stepping motor 305 drives the long arm 313 and the short arm 314 to fold in the middle through the driving clamping table 303. At this time, the grooving motor 311 drives the two linkage wheel plates 307 to rotate through the linkage belt 308, and the drill rod 309 rotates with the linkage wheel plate 307. The drill rod 309 and the grinding head 310 at the end of the drill rod 309 will grind a shallow groove on the upper and lower side walls of the automobile beam 2. The grinding head 310 is replaced regularly.

[0041] S3. The processed automobile beam 2 is taken off and placed on the top surface of the clamping plate 5. At this time, the worker manually rotates the torsion handle 506 and the winding roller 505, and the winding roller 505 starts to pull and tighten the bandage 503. The bandage 503 is pressed on all the pressing wheels 509, and the abutting rod 507 and the abutting rubber rod 510 at the bottom end can be pressed on the top surface of the automobile beam 2 for locking work. The worker scrapes off the metal flash at a fixed position. The abutting rubber rod 510 is replaced with a new one after a long time of pressing and deformation.

[0042] The above is only a preferred embodiment of the present application, and does not limit the technical scope of the present application. Any slight modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the technical scope of the present application.

Claims

1. A welding positioning device for automotive parts, characterized in that: The system includes two load-bearing uprights (1), the bottom ends of which are connected by a connecting plate (101). A torque sleeve (102) is rotatably mounted on the top of the load-bearing upright (1). A car beam (2) is slidably mounted on the inner side of the torque sleeve (102). Two screw valves (104) are provided on the top of the torque sleeve (102). A rubber pad is pressed against the top surface of the car beam (2) at the end of each screw valve (104). The torque sleeve (102) is mounted on the output end of a positioning motor (103). A grooving platform (4) is provided on one side of the load-bearing upright (1), and a grooving mechanism is provided on the grooving platform (4). A vertical plate (3) is provided on the other side of the load-bearing upright (1). 3) A grinding and cutting assembly is provided on the upper part. A clamping plate (5) is provided below the load-bearing upright plate (1). A clamping assembly is provided on the clamping plate (5). The grooving mechanism includes a reversing plate (401) rotatably set on the top of the grooving table (4). The reversing plate (401) is connected to the angle torsion mechanism. Two reversing guide rails (402) are provided on the top of the reversing plate (401). A conversion plate (403) is slidably installed on the reversing guide rail (402). The conversion plate (403) is connected to the linear propulsion assembly. A cutting motor (408) is provided at the bottom of the conversion plate (403). A grinding sleeve (404) is installed at the output end of the cutting motor (408). The grinding sleeve (404) and the grinding stone (405) are installed.

2. The automotive parts welding positioning device according to claim 1, characterized in that: Both the grinding sleeve (404) and the grinding stone (405) are provided with threaded channels in the middle, and the lower end of the grinding stone (405) is provided with a threaded head that intersects with the threaded channels.

3. The automotive parts welding positioning device according to claim 1, characterized in that: The angle torsion mechanism includes a gear disk (411) at the bottom of the slotted platform (4), and a plug rod that is connected to the gear disk (411) on the reversing plate (401). A reduction gear (409) is provided on one side of the gear disk (411). The reduction gear (409) and the gear disk (411) mesh with each other. The reduction gear (409) is installed on the output end of the directional motor (410).

4. The automotive parts welding positioning device according to claim 1, characterized in that: The linear propulsion assembly includes a servo motor (406) at the top of the reversing plate (401), a threaded rod (407) is installed at the output end of the servo motor (406), and a nut block fitted on the threaded rod (407) is provided at the bottom end of the conversion plate (403).

5. The automotive parts welding positioning device according to claim 1, characterized in that: The grinding assembly includes two clamping guide rails (301) on the vertical plate (3), two sets of clamping sliders (302) are slidably installed on the clamping guide rails (301), a clamping platform (303) is provided on the side wall of the clamping slider (302), a shallow groove opening mechanism is provided on the side wall of the clamping platform (303), and the two clamping platforms (303) are connected to the clamping power mechanism. The shallow groove opening mechanism includes two translation plates (306) on the side wall of the clamping platform (303), a drill rod (309) is rotatably installed on one side of the translation plate (306), a grinding head (310) is detachably installed at the end of the drill rod (309), and the drill rod (309) is connected to the grinding power mechanism.

6. The automotive parts welding positioning device according to claim 5, characterized in that: The grinding power mechanism includes a linkage wheel (307) at the end of the drill rod (309), and the linkage wheels (307) are connected by a linkage belt (308). One of the linkage wheels (307) is installed on the output end of the slotting motor (311).

7. The automotive parts welding positioning device according to claim 5, characterized in that: The clamping power mechanism includes a reserved slot (304) in the middle of the vertical plate (3). A plane bearing (312) is fixedly installed on the inner side wall of the reserved slot (304). A stepper motor (305) is installed on one side of the plane bearing (312). A long arm (313) is installed at the output end of the stepper motor (305). A traction rod (315) is provided on the side wall of the clamping table (303) and passes through the reserved slot (304). The traction rod (315) is connected to the end of the long arm (313) through a short arm (314).

8. The automotive parts welding positioning device according to claim 1, characterized in that: The clamping assembly includes a cantilever plate (501) above the clamping plate (5). The two ends of the cantilever plate (501) are fixedly connected to the side wall of the clamping plate (5) through a bracket (502). The cantilever plate (501) is provided with five pressure holes arranged in a straight line. Each pressure hole has a sliding abutment rod (507). The top of the abutment rod (507) is provided with a pressure wheel (509). The bandage (50) is pulled out from the bracket (502) at the left end. 3) A take-up shaft seat (504) is provided on the bracket (502) at the right end. A take-up roller (505) is provided on one side of the take-up shaft seat (504). The other end of the bandage (503) is connected to the take-up roller (505). A torque handle (506) is provided on one side of the take-up roller (505). The torque handle (506) is locked on the take-up shaft seat (504) by a pin. The bandage (503) is pressed against the side wall of the pressing wheel (509).

9. The automotive parts welding positioning device according to claim 8, characterized in that: The outer side of the abutment rod (507) is fitted with a return spring (508). The bottom end of the return spring (508) is fixedly connected to the cantilever plate (501). The top end of the return spring (508) is connected to the pressure wheel (509). The bottom end of the abutment rod (507) is provided with an abutment rubber rod (510). The middle abutment rod (507) is 20 centimeters long, the two abutment rods (507) on both sides are 16 centimeters long, and the two outermost abutment rods (507) are 10 centimeters long.

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