Welding fixture for automobile A-column reinforcer

Abstract

The utility model discloses an automobile A column reinforcer welding clamp which comprises a base, a mounting seat is arranged above the base, the two ends of the mounting seat penetrate through the base through mounting shafts and are rotationally connected with the base, a first gear is connected to the mounting shaft on the left side in a sleeved mode, a rack is arranged in the base, an air cylinder is arranged in the base, and a second gear is arranged in the air cylinder. A pointer is arranged on the mounting shaft on the left side, a dial is arranged on the base and corresponds to the pointer, two sets of symmetrically-distributed mounting rings are arranged in the mounting base, and the deflection angles of the mounting shafts and the mounting base are adjusted by matching an air cylinder and a rack with a first gear. Therefore, the automobile A column fixed on the mounting seat can be subjected to multi-angle welding processing on the mounting seat, repeated sectional welding work is not needed, the working efficiency is improved, and the consistency of the welding quality of the same welding seam is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of welding fixtures, in particular to a welding fixture for an automobile A-pillar reinforcement. Background Art

[0002] The A-pillar is the connecting pillar between the roof and the front cabin on the left and right front of the car. It is between the engine compartment and the cockpit, and above the left and right rearview mirrors. Therefore, in order to ensure the high rigidity of the A-pillar to reduce safety risks, reinforcement parts need to be welded during the processing and production of the A-pillar.

[0003] Referring to the Chinese patent, the application number is: "CN 217618671 U" specifically "A compact automobile A-pillar reinforcement welding fixture device", which solves the problem that "the existing compact automobile A-pillar reinforcement welding fixtures all clamp the automobile A-pillar through two clamping ends. When welding the reinforcement, the reinforcements of different models of A-pillars have different shapes and structures, so it is necessary to adjust the clamping height and clamping distance of the A-pillar. The existing equipment uses highly refined automatic equipment to adjust the distance and height. Such a fixture device has high requirements for operation, and the equipment parts are relatively delicate, which is easy to cause damage during use, thus increasing the processing cost";

[0004] In the utility model, the clamping of the two ends of the A-pillar is achieved by adjusting the clamping mechanism, and the clamping height can be adjusted at the same time. The clamping height can be flexibly adjusted by adjusting the screw and the lifting block using threaded cooperation. However, during the clamping and welding process of the A-pillar, the clamping angle of the welding position cannot be adjusted, so that the welding of the A-pillar reinforcement needs to be completed in multiple steps and sections, and the welding quality of the welding positions is uneven. Utility Model Content

[0005] The utility model aims to provide a welding fixture for an automobile A-pillar reinforcement to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding fixture for automobile A-pillar reinforcement, comprising a base, a mounting seat is provided above the base, two ends of the mounting seat pass through the base through a mounting shaft and are rotatably connected to the base, a first gear is sleeved on the left mounting shaft, a rack is provided in the base, a cylinder is provided in the base, a pointer is provided on the left mounting shaft, a dial is provided on the base, the dial and the pointer are arranged correspondingly, and two groups of symmetrically distributed mounting rings are provided in the mounting seat.

[0007] As a further preferred embodiment of the present technical solution, the two groups of mounting rings are both slidably connected to the mounting seat, a bidirectional screw rod is provided in the mounting seat, both ends of the bidirectional screw rod respectively pass through the mounting seat and are rotatably connected to the mounting seat, both ends of the bidirectional screw rod respectively pass through the two groups of mounting rings and are threadedly connected to the mounting rings, a motor is provided in the base, and the left end of the bidirectional screw rod is connected to the output end of the motor.

[0008] As a further preferred embodiment of the present technical solution, the rack is slidably connected to the base, the rack is connected to the output end of the cylinder piston rod, and the rack is meshingly connected to the first gear.

[0009] As a further preferred embodiment of the present technical solution, an inner fixing ring is provided in the mounting ring, three groups of annularly distributed connecting tubes are provided between the inner fixing ring and the mounting ring, push rods are provided in the three groups of connecting tubes, the push rods are slidably connected to the connecting tubes, threaded rods are provided in the connecting tubes, the threaded rods are rotatably connected to the connecting tubes through bearings, the ends of the three groups of threaded rods away from the mounting rings all penetrate the push rods and are threadedly connected to the push rods, the three groups of threaded rods are all sleeved with first bevel gears, three groups of annularly distributed second bevel gears are provided in the mounting ring, a second gear is fixedly mounted on the second bevel gear, and a gear ring is provided in the mounting ring.

[0010] As a further preferred embodiment of the present technical solution, three groups of the second bevel gears are arranged corresponding to the connecting pipes, the second bevel gears are respectively meshed and connected with the corresponding first bevel gears, and the second bevel gears are rotatably connected with the mounting ring through a rotating shaft.

[0011] As a further preferred embodiment of the present technical solution, the gear ring is rotatably connected to the mounting ring via a bearing, the gear ring is meshingly connected to three groups of annularly distributed second gears, a motor is provided on the mounting ring, and the second bevel gear on the right side is connected to the output end of the motor via a rotating shaft.

[0012] The utility model provides a welding fixture for automobile A-pillar reinforcement, which has the following beneficial effects:

[0013] (1) The utility model realizes the adjustment of the deflection angle of the mounting shaft and the mounting seat by cooperating with the first gear through the provided cylinder and the rack, so that the A-pillar of the automobile fixed on the mounting seat can be welded at multiple angles on the mounting seat, without the need for multiple segmented welding work, thereby improving work efficiency and ensuring the consistency of welding quality of the same weld. The angle indication of the pointer and the dial facilitates the staff to accurately judge the clamping angle of the automobile A-pillar, and the two sets of symmetrically distributed mounting rings provided on the mounting seat can realize spacing adjustment through a bidirectional screw rod, so that the clamp can clamp and fix automobile A-pillars of different models.

[0014] (2) The utility model achieves the center position fixation of the automobile A-pillar through the provided mounting ring, the inner fixing ring and the three sets of push rods, and cooperates with the synchronous adjustment of the distance between the two sets of mounting rings, so that the welding fixture can always fix the automobile A-pillar of different models at the axis of the welding fixture mounting ring, which is convenient for determining the welding position of the automobile A-pillar reinforcement and avoiding errors in the welding work; the motor drives the rotation of the second bevel gear on the right side, so that the second gear on the second bevel gear rotates synchronously, driving the rotation of the gear ring, and cooperating with the other two sets of second gears to make the three sets of second bevel gears rotate synchronously, and the second bevel gear drives the first bevel gear and the threaded rod fixedly installed with the first bevel gear to rotate, and under the limiting action of the connecting tube, the three sets of push rods are synchronously extended and retracted in the connecting tube, so that the automobile A-pillar of different models is fixed at the center position of the mounting ring, avoiding the difficulty in determining the welding position due to the shape difference of the automobile A-pillar itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the mounting seat of the utility model;

[0017] Figure 3 For the utility model Figure 2 -A magnified view of the structure;

[0018] Figure 4 It is a structural schematic diagram of the mounting ring of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the inner fixing ring of the utility model;

[0020] Figure 6 For the utility model Figure 5 -Enlarged view of the structure at B;

[0021] In the figure: 1. base; 2. mounting seat; 3. mounting shaft; 4. first gear; 5. rack; 6. cylinder; 7. pointer; 8. dial; 9. mounting ring; 10. bidirectional screw; 11. motor; 12. inner fixing ring; 13. connecting pipe; 14. push rod; 15. threaded rod; 16. first bevel gear; 17. second bevel gear; 18. second gear; 19. gear ring; 20. motor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the welding fixture of the automobile A-pillar reinforcement comprises a base 1, a mounting base 2 is arranged above the base 1, two ends of the mounting base 2 penetrate the base 1 through the mounting shaft 3 and are rotatably connected with the base 1, a first gear 4 is sleeved on the left mounting shaft 3, a rack 5 is arranged in the base 1, a cylinder 6 is arranged in the base 1, a pointer 7 is arranged on the left mounting shaft 3, a dial 8 is arranged on the base 1, and the dial 8 is arranged corresponding to the pointer 7, two groups of symmetrically distributed mounting rings 9 are arranged in the mounting base 2, and the two groups of mounting rings 9 are slidably connected with the mounting base 2, a bidirectional screw rod 10 is arranged in the mounting base 2, two ends of the bidirectional screw rod 10 respectively penetrate the mounting base 2 and are rotatably connected with the mounting base 2, two ends of the bidirectional screw rod 10 respectively penetrate the two groups of mounting rings 9 and are threadedly connected with the mounting ring 9, a motor 11 is arranged in the base 1, the left end of the bidirectional screw rod 10 is connected to the output end of the motor 11, the rack 5 is slidably connected to the base 1, the rack 5 is connected to the output end of the piston rod of the cylinder 6, and the rack 5 is meshed with the first gear 4.

[0024] The cylinder 6 and the rack 5 cooperate with the first gear 4 to adjust the deflection angle of the mounting shaft 3 and the mounting seat 2, so that the automobile A-pillar fixed on the mounting seat 2 can be welded at multiple angles on the mounting seat 2, without the need for multiple segmented welding work, thereby improving work efficiency and ensuring the consistency of welding quality of the same weld. The angle indication of the pointer 7 and the dial 8 facilitates the staff to accurately judge the clamping angle of the automobile A-pillar, and the two groups of symmetrically distributed mounting rings 9 set on the mounting seat 2 can achieve spacing adjustment through the bidirectional screw 10, so that the clamp can clamp and fix automobile A-pillars of different models.

[0025] like Figure 4 , Figure 5 and Figure 6As shown, an inner fixing ring 12 is provided in the mounting ring 9, and three groups of annularly distributed connecting pipes 13 are provided between the inner fixing ring 12 and the mounting ring 9, and push rods 14 are provided in the three groups of connecting pipes 13, and the push rods 14 are slidably connected to the connecting pipes 13, and threaded rods 15 are provided in the connecting pipes 13, and the threaded rods 15 are rotatably connected to the connecting pipes 13 through bearings, and the ends of the three groups of threaded rods 15 away from the mounting ring 9 all penetrate the push rods 14 and are threadedly connected to the push rods 14, and the three groups of threaded rods 15 are sleeved with first bevel gears 16, and the mounting ring 9 is provided with three groups of annularly distributed second bevel gears Wheel 17, a second gear 18 is fixedly mounted on the second bevel gear 17, a gear ring 19 is arranged in the mounting ring 9, three groups of second bevel gears 17 are arranged corresponding to the connecting pipe 13, the second bevel gears 17 are respectively meshed and connected with the corresponding first bevel gears 16, the second bevel gear 17 is rotatably connected to the mounting ring 9 through a rotating shaft, the gear ring 19 is rotatably connected to the mounting ring 9 through a bearing, the gear ring 19 is meshed and connected with three groups of annularly distributed second gears 18, a motor 20 is arranged on the mounting ring 9, and the second bevel gear 17 on the right side is connected to the output end of the motor 20 through a rotating shaft.

[0026] The center position of the A-pillar of the automobile is fixed by the provided mounting ring 9, the inner fixing ring 12 and the three sets of supporting rods 14, and the synchronous adjustment of the distance between the two sets of mounting rings 9 enables the welding fixture to always fix the A-pillar of automobiles of different models at the axis of the mounting ring 9 of the welding fixture, which facilitates the determination of the welding position of the automobile A-pillar reinforcement and avoids the error of the welding work.

[0027] The utility model provides a welding fixture for strengthening an A-pillar of an automobile, and the specific working principle is as follows: the second bevel gear 17 on the right side is driven to rotate by a motor 20, so that the second gear 18 on the second bevel gear 17 rotates synchronously, driving the rotation of the gear ring 19, and cooperating with the other two groups of second gears 18 so that the three groups of second bevel gears 17 rotate synchronously, and the second bevel gear 17 drives the first bevel gear 16 and the threaded rod 15 fixedly installed with the first bevel gear 16 to rotate, and under the limiting effect of the connecting tube 13, the three groups of push rods 14 are synchronously extended and retracted in the connecting tube 13, and the A-pillars of automobiles of different models are fixed at the center position of the mounting ring 9, In order to avoid the difficulty in determining the welding position due to the difference in shape of the automobile A-pillar itself, after the automobile A-pillar is fixed, during the welding process, the cylinder 6 and the rack 5 are coordinated with the first gear 4 to adjust the deflection angle of the mounting shaft 3 and the mounting seat 2, so that the automobile A-pillar fixed on the mounting seat 2 can be welded at multiple angles on the mounting seat 2, without the need for multiple segmented welding work, thereby improving work efficiency and ensuring the consistency of welding quality of the same weld. The angle indication of the pointer 7 and the dial 8 is convenient for the staff to accurately judge the clamping angle of the clamp for the automobile A-pillar.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for an automobile A-pillar reinforcement, comprising a base (1), characterized in that: A mounting seat (2) is provided above the base (1), and two ends of the mounting seat (2) penetrate the base (1) through a mounting shaft (3) and are rotatably connected to the base (1), a first gear (4) is sleeved on the left mounting shaft (3), a rack (5) is provided in the base (1), a cylinder (6) is provided in the base (1), a pointer (7) is provided on the left mounting shaft (3), a dial (8) is provided on the base (1), and the dial (8) and the pointer (7) are arranged correspondingly, and two groups of symmetrically distributed mounting rings (9) are provided in the mounting seat (2).

2. The automobile A-pillar reinforcement welding fixture according to claim 1, characterized in that: The two groups of mounting rings (9) are both slidably connected to the mounting seat (2); a bidirectional screw rod (10) is arranged inside the mounting seat (2); two ends of the bidirectional screw rod (10) respectively penetrate the mounting seat (2) and are rotatably connected to the mounting seat (2); two ends of the bidirectional screw rod (10) respectively penetrate the two groups of mounting rings (9) and are threadedly connected to the mounting rings (9); a motor (11) is arranged inside the base (1); and the left end of the bidirectional screw rod (10) is connected to the output end of the motor (11).

3. The automobile A-pillar reinforcement welding fixture according to claim 1, characterized in that: The rack (5) is slidably connected to the base (1), the rack (5) is connected to the output end of the piston rod of the cylinder (6), and the rack (5) is meshingly connected to the first gear (4).

4. The automobile A-pillar reinforcement welding fixture according to claim 1, characterized in that: An inner fixing ring (12) is arranged inside the mounting ring (9), and three groups of connecting tubes (13) distributed in an annular manner are arranged between the inner fixing ring (12) and the mounting ring (9). Abutment rods (14) are arranged inside the three groups of connecting tubes (13), and the abutment rods (14) are slidably connected to the connecting tubes (13). A threaded rod (15) is arranged inside the connecting tubes (13), and the threaded rod (15) is rotatably connected to the connecting tubes (13) through a bearing. One end of the three groups of threaded rods (15) away from the mounting ring (9) passes through the abutment rod (14) and is threadedly connected to the abutment rod (14). A first bevel gear (16) is sleeved on the three groups of threaded rods (15). Three groups of second bevel gears (17) distributed in an annular manner are arranged inside the mounting ring (9), and a second gear (18) is fixedly mounted on the second bevel gear (17). A gear ring (19) is arranged inside the mounting ring (9), and a motor (20) is arranged on the mounting ring (9).

5. The automobile A-pillar reinforcement welding fixture according to claim 4, characterized in that: Three groups of the second bevel gears (17) are arranged corresponding to the connecting pipe (13); the second bevel gears (17) are respectively meshed and connected with the corresponding first bevel gears (16); and the second bevel gears (17) are rotationally connected to the mounting ring (9) via a rotating shaft.

6. The automobile A-pillar reinforcement welding fixture according to claim 4, characterized in that: The gear ring (19) is rotatably connected to the mounting ring (9) via a bearing, and the gear ring (19) is meshedly connected to three groups of annularly distributed second gears (18), and the second bevel gear (17) on the right side is connected to the output end of the motor (20) via a rotating shaft.

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