Search

CN-122007769-A - Welding positioning device for automobile hinge processing

CN122007769ACN 122007769 ACN122007769 ACN 122007769ACN-122007769-A

Abstract

The invention relates to the technical field of automobile processing, in particular to a welding positioning device for automobile hinge processing, which comprises a processing table, wherein the rear end of the processing table is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a push plate, the front end of the inner wall of the processing table is fixedly connected with a fixed cylinder, the inside of the fixed cylinder is fixedly connected with a spring, the rear end of the spring is fixedly connected with a second limiting block, the rear end of the second limiting block is fixedly connected with a second connecting rod, the rear end of the second connecting rod is fixedly connected with an abutting block, and two sides of the processing table are provided with auxiliary structures. The invention has the advantages that the push plate and the abutting block are arranged, the reliability and the consistency of clamping are ensured, the clamping is superior to a purely manual or rigid clamping mode, the auxiliary structure is arranged, the positioning precision is high, the clamping is stable, the deformation and the displacement of workpieces in the welding process can be effectively restrained, and the welding quality is improved.

Inventors

  • HU LINCHENG

Assignees

  • 宣城市君诚汽车零部件有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. The welding positioning device for machining the automobile hinge comprises a machining table (1), and is characterized in that an inner wall of the machining table (1) is fixedly connected with a placing plate (11), a matching groove (12) is formed in the top of the placing plate (11), a hinge body (13) is movably connected to the top of the matching groove (12), a switch (14) is arranged on the surface of the machining table (1), an electric telescopic rod (2) is fixedly connected to the rear end of the machining table (1), a push plate (21) is fixedly connected to the output end of the electric telescopic rod (2), auxiliary plates (22) are fixedly connected to two sides of the push plate (21), a connecting rod I (23) is fixedly connected to the rear end of the auxiliary plates (22), a limiting block I (24) is fixedly connected to the rear end of the connecting rod I (23), a fixing cylinder (3) is fixedly connected to the inner wall front end of the machining table (1), a spring (31) is fixedly connected to the inner wall of the fixing cylinder (3), a limiting block II (32) is fixedly connected to the rear end of the fixing cylinder (32), two auxiliary connecting rods (33) are fixedly connected to the rear ends of the two connecting rods (33) respectively, auxiliary structure (4) are including changeing handle (41), one side fixedly connected with worm (42) of changeing handle (41), the surface engagement of worm (42) has worm wheel (43), the inside fixedly connected with adjusting screw (44) of worm wheel (43), spout (45) have been seted up at the both sides top of processing platform (1), the inside fixedly connected with guide bar (46) of spout (45), the surface symmetry sliding connection of adjusting screw (44) has two sets of regulating blocks (47), one side fixedly connected with grip block (48) of regulating block (47), the top rotation of grip block (48) is connected with knob (49), the bottom fixedly connected with threaded rod (410) of knob (49), the bottom fixedly connected with clamp plate (411) of threaded rod (410).
  2. 2. The welding and positioning device for automobile hinge processing according to claim 1, wherein the hinge body (13) is slidably connected to the inside of the fitting groove (12), and the front and rear ends of the placement plate (11) are not in contact with the push plate (21) and the abutting block (34).
  3. 3. The welding positioning device for automobile hinge processing according to claim 1, wherein the electric telescopic rod (2) is electrically connected with the switch (14), and the switch (14) is electrically connected with an external power supply.
  4. 4. The welding and positioning device for automobile hinge machining according to claim 1, wherein a round groove I is formed in the rear end of the inner wall of the machining table (1), the connecting rod I (23) is connected in the round groove I in a sliding mode, and the radius of the limiting block I (24) is larger than that of the connecting rod I (23).
  5. 5. The welding and positioning device for automobile hinge processing according to claim 1, wherein a round groove II matched with the limiting block II (32) is formed in the fixing cylinder (3), the limiting block II (32) is slidably connected in the round groove II, the radius of the limiting block II (32) is larger than that of the connecting rod II (33), and the connecting rod II (33) penetrates through the rear end of the round groove II and is fixedly connected with the limiting block II (32).
  6. 6. The welding and positioning device for automobile hinge processing according to claim 1, wherein rubber cushion layers are arranged on the surfaces of the pushing plate (21), the auxiliary plate (22) and the abutting block (34), the pushing plate (21), the auxiliary plate (22) and the abutting block (34) are abutted against the front end and the rear end of the hinge body (13) respectively, and round corners are arranged on the surfaces of the abutting block (34).
  7. 7. The welding and positioning device for automobile hinge processing according to claim 1, wherein two sets of opposite threads are arranged on the surface of the adjusting screw (44), and the two sets of adjusting blocks (47) are respectively matched with the two sets of threads.
  8. 8. The welding and positioning device for automobile hinge processing according to claim 1, wherein a round groove III is formed in the surface of the adjusting block (47), the adjusting block (47) is slidably connected in the sliding groove (45), the adjusting block (47) is slidably connected to the surface of the guide rod (46) through the round groove III, and the guide rod (46) is arranged right below the adjusting screw (44).
  9. 9. The welding and positioning device for automobile hinge processing according to claim 1, wherein a first thread groove is formed in the surface of the clamping plate (48), and the threaded rod (410) is rotatably connected in the first thread groove.
  10. 10. The welding and positioning device for automobile hinge processing according to claim 1, wherein the clamping plate (48) is C-shaped, the pressing plate (411) is rotatably connected to the inner side of the clamping plate (48), the pressing plate (411) is not contacted with the clamping plate (48), and a rubber cushion layer is arranged at the bottom of the pressing plate (411).

Description

Welding positioning device for automobile hinge processing Technical Field The invention belongs to the technical field of automobile machining, and particularly relates to a welding positioning device for automobile hinge machining. Background In the process of manufacturing an automobile body, a hinge is a key component for connecting a door and a body frame, and the welding quality of the hinge is directly related to the opening and closing smoothness, the sealing performance and the overall safety performance of the door. The hinge is usually formed by combining and welding a plurality of stamped or forged metal parts, and the assemblies need to be accurately positioned and clamped before welding so as to ensure that the relative positions of the parts completely meet the requirements of a design drawing and avoid welding deformation or insufficient strength caused by dislocation. The existing hinge welding positioning device relies on simple fixture to cooperate with manual placement and calibration, or uses a universal vice to clamp, manual positioning efficiency is low, positioning accuracy and consistency are difficult to guarantee, mass production product quality stability is directly affected, meanwhile, the universal fixture is often unable to perfectly adapt to a special-shaped structure of a hinge, tiny displacement or deformation of a workpiece is easily caused by uneven stress during clamping, or deflection is generated under the action of welding thermal stress, and the traditional unidirectional clamping mode cannot realize omnibearing stable fixation, vibration or rotation is easily generated in the welding process, and accuracy of a welding path is affected. Disclosure of Invention In order to overcome the technical problems described above, the present invention aims to provide a welding and positioning device for processing an automobile hinge, so as to solve the problems that the existing welding and positioning device for the hinge provided in the prior art relies on a simple fixture to be matched with manual placement and calibration, or uses a universal vice to clamp, the efficiency is low, the positioning precision and consistency are difficult to ensure, and the traditional unidirectional clamping mode is easy to vibrate or rotate in the welding process, so that the accuracy of a welding path is affected. The technical scheme is that the welding positioning device for automobile hinge processing comprises a processing table, a placing plate is fixedly connected to the inner wall of the processing table, a matching groove is formed in the top of the placing plate, a hinge body is movably connected to the top of the matching groove, a switch is installed on the surface of the processing table, an electric telescopic rod is fixedly connected to the rear end of the processing table, a push plate is fixedly connected to the output end of the electric telescopic rod, auxiliary plates are fixedly connected to the two sides of the push plate, a connecting rod I is fixedly connected to the rear end of the auxiliary plates, a first limiting block is fixedly connected to the rear end of the connecting rod I, a fixed cylinder is fixedly connected to the front end of the inner wall of the processing table, a spring is fixedly connected to the rear end of the fixed cylinder, a second limiting block is fixedly connected to the rear end of the connecting rod, a butting block is fixedly connected to the rear end of the connecting rod II, auxiliary structures are arranged on the two sides of the processing table, the auxiliary structures comprise rotating handles, worm wheels are fixedly connected to one sides of the rotating handles, worm wheels are fixedly connected to the surfaces of the worm wheels, guide plates are fixedly connected to the two sides of the two side of the worm wheels are fixedly connected to the top of the adjusting plate, two side of the adjusting plate are fixedly connected to the threaded rods, the top of the adjusting plate is fixedly connected to the threaded rods are fixedly connected to the top of the adjusting plate, and the two side of the adjusting plate is fixedly connected to the top of the adjusting plate is fixedly connected to the threaded rods. Preferably, the hinge body is slidably connected inside the matching groove, and the front end and the rear end of the placing plate are not contacted with the pushing plate and the abutting block. Preferably, the electric telescopic rod is electrically connected with the switch, and the switch is electrically connected with an external power supply. Preferably, a round groove I is formed in the rear end of the inner wall of the processing table, the connecting rod I is connected in the round groove I in a sliding mode, and the radius of the limiting block I is larger than that of the connecting rod I. Preferably, a second round groove matched with the second round stopper is formed in the fixed cylinder, the second roun