Welding fixture for automobile body assembly

Abstract

The utility model discloses a welding fixture for an automobile body assembly, which belongs to the technical field of automobile production and comprises a bottom plate, a plurality of groups of sliding grooves are formed in opposite corners of the bottom plate, a movable plate is arranged on a sliding rod in a sliding manner, and a fixture is fixedly mounted on the movable plate; a first sliding base is arranged in the middle of the T-shaped supporting plate, double racks are movably arranged on the first sliding base, and an upper clamping plate facing downwards is arranged at the top of the connecting plate. A single rack is movably arranged on the second sliding seat, and the top of the single rack is connected with a lower clamping plate; and a slag discharging opening is formed in the middle of the bottom plate. The whole clamp can be moved through the first air cylinder and the moving plate, when a vehicle body is clamped, the second air cylinder can drive the double racks and the upper clamping plate to move downwards, and at the moment, the lower clamping plates on the two sides can also move upwards so as to be matched with the lower clamping plates to clamp the vehicle body. Welding slag generated in the welding process can fall into the collecting bin at the bottom through the slag discharging opening, and the situation that follow-up operation is affected due to the fact that the welding slag is accumulated on the bottom plate is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production, in particular to a welding fixture for automobile body assembly. Background Art

[0002] Automobile body assembly refers to the process of assembling and connecting various parts of the car body (such as roof, doors, hood, rear, side panels, etc.) into a complete car body during automobile manufacturing. Welding fixtures are required in the welding process of automobile body assembly.

[0003] Publication number: CN220330457U discloses a car body welding fixture, which relates to the technical field of car body welding fixtures, including a fixed platform, a top end of the fixed platform is provided with a flip mechanism, the flip mechanism includes a motor and a flip plate, the output end of the motor is connected to a No. 1 gear, the outer surface of the No. 1 gear is meshed with a No. 2 gear, the two ends of the flip plate and the middle part are rotatably connected to two No. 1 connecting rods, one end of the No. 1 connecting rod is rotatably connected to the No. 2 connecting rod, and a rotating rod is installed between the two No. 2 connecting rods. The utility model sets a flip mechanism, drives the rotating rod to rotate by the motor, and utilizes the cooperation of the No. 1 connecting rod and the No. 2 connecting rod and the limiting effect between the limiting column and the limiting plate, so that the flip plate can drive the door installed thereon to flip, so that only one mechanical arm can be used to perform welding operations on the other end of the large door, reducing production costs.

[0004] The degree of freedom of the body welding fixtures in the above-mentioned comparative documents is general, and the relative distance between the fixtures cannot be adaptively adjusted. In addition, the operation process is cumbersome and the body cannot be quickly clamped and fixed. Therefore, an automobile body assembly welding fixture is designed here to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automobile body assembly welding fixture to solve the problems that the traditional automobile body welding fixture has a general degree of freedom, cannot adaptively adjust the relative distance between the fixtures, has a cumbersome operation process, and cannot quickly clamp and fix the automobile body.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is: a kind of automobile body assembly welding fixture, comprising a base plate, wherein a plurality of groups of sliding grooves are provided at the diagonal positions of the base plate, and symmetrical sliding rods are arranged in the sliding grooves, a movable plate is slidably arranged on the sliding rods, and a fixture is fixedly installed on the movable plate; the fixture comprises a T-shaped support plate fixedly installed on the side of the movable plate, the middle portion of the T-shaped support plate is provided with a first slide seat, a double rack is movably arranged on the first slide seat, the top of the double rack is connected with a connecting plate, and the top of the connecting plate is provided with an upper clamping plate facing downward; symmetrical second slide seats are provided on both sides of the T-shaped support plate, a single rack is movably arranged on the second slide seat, and the top of the single rack is connected with a lower clamping plate; a slag discharge port is also provided in the middle portion of the base plate, and a collection bin is provided at the bottom of the slag discharge port.

[0007] As a further solution of the utility model: a first cylinder is installed on the side of the base plate, and an output end of the first cylinder is connected to the movable plate.

[0008] As a further solution of the utility model: a second cylinder is also installed on the side of the T-shaped support plate, and the output end of the second cylinder is connected to the bottom of the double rack.

[0009] As a further solution of the utility model: symmetrical linkage gears are movably installed on the T-shaped support plate, and the linkage gears are respectively meshed with the double racks and the single rack on both sides.

[0010] As a further solution of the utility model: a door panel is provided on the side of the collecting bin.

[0011] As a further solution of the utility model: anti-slip patterns are arranged on the inner walls of the upper clamping plate and the lower clamping plate.

[0012] As a further solution of the utility model: a plurality of groups of supporting legs are arranged at the bottom of the base plate.

[0013] The utility model provides an automobile body assembly welding fixture through improvement, which has the following improvements and advantages compared with the prior art:

[0014] The utility model can move the clamps on both sides as a whole through the cooperation of the first cylinder and the moving plate, and further improve the stability during sliding through the design of the slide bar. When the car body needs to be clamped, the second cylinder will drive the double rack and the upper clamping plate to move downward, and with the cooperation of the linkage gear, the lower clamping plates on both sides will also move upward, thereby cooperating with the upper clamping plate to clamp the car body. During the welding process, the generated welding slag will fall into the collection bin at the bottom through the slag discharge port, avoiding the accumulation of welding slag on the bottom plate and affecting the subsequent welding operation. The design is very clever and effective, which greatly improves the practicality of the automobile body assembly welding fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 It is the three-dimensional structure of the utility model Figure 1 ;

[0017] Figure 2 It is the three-dimensional structure of the utility model Figure 2 ;

[0018] Figure 3 It is the three-dimensional structure of the clamp in the utility model Figure 1 ;

[0019] Figure 4 It is the three-dimensional structure of the clamp in the utility model Figure 2 .

[0020] Description of reference numerals:

[0021] 1. Bottom plate; 2. Support legs; 3. Slag discharge port; 4. Collecting bin; 5. Door plate; 6. Sliding groove; 7. Sliding rod; 8. Moving plate; 9. Clamp; 10. First cylinder; 11. T-shaped support plate; 12. Double rack; 13. Connecting plate; 14. Upper clamping plate; 15. Second cylinder; 16. Second slide seat; 17. Single rack; 18. Lower clamping plate; 19. Linkage gear; 20. First slide seat. DETAILED DESCRIPTION

[0022] The following will be combined with the attached Figures 1 to 4 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides an improved automobile body assembly welding fixture. Figure 1-Figure 4As shown, a welding fixture for an automobile body assembly comprises a base plate 1, wherein a plurality of groups of sliding grooves 6 are provided at opposite corners of the base plate 1, symmetrical sliding rods 7 are arranged in the sliding grooves 6, a movable plate 8 is slidably arranged on the sliding rod 7, and a fixture 9 is fixedly installed on the movable plate 8; the fixture 9 comprises a T-shaped support plate 11 fixedly installed on the side of the movable plate 8, a first slide seat 20 is arranged in the middle of the T-shaped support plate 11, a double rack 12 is movably arranged on the first slide seat 20, a connecting plate 13 is connected to the top of the double rack 12, and an upper clamping plate 14 facing downward is arranged on the top of the connecting plate 13; symmetrical second slide seats 16 are arranged on both sides of the T-shaped support plate 11, a single rack 17 is movably arranged on the second slide seat 16, and a lower clamping plate 18 is connected to the top of the single rack 17; a slag discharge port 3 is also arranged in the middle of the base plate 1, and a collecting bin 4 is arranged at the bottom of the slag discharge port 3.

[0024] The utility model can move the clamps 9 on both sides as a whole through the cooperation of the first cylinder 10 and the moving plate 8, and further improve the stability during sliding through the design of the slide bar 7. When the car body needs to be clamped, the second cylinder 15 will drive the double rack 12 and the upper clamping plate 14 to move downward, and with the cooperation of the linkage gear 19, the lower clamping plates 18 on both sides will also move upward, thereby cooperating with the upper clamping plate 14 to clamp the car body. During the welding process, the generated welding slag will fall into the collection bin 4 at the bottom through the slag discharge port 3, avoiding the accumulation of welding slag on the bottom plate 1 and affecting the subsequent welding operation. This design is very clever and effective, greatly improving the practicality of the automobile body assembly welding fixture.

[0025] See attached Figure 1 -Attached Figure 2 A first cylinder 10 is installed on the side of the base plate 1 , and an output end of the first cylinder 10 is connected to the moving plate 8 .

[0026] In this embodiment, in order to synchronously drive the moving plate 8 to move along the sliding groove 6 , a first cylinder 10 is installed on the side of the base plate 1 .

[0027] See attached Figure 3 -Attached Figure 4 A second cylinder 15 is also installed on the side of the T-shaped support plate 11 , and the output end of the second cylinder 15 is connected to the bottom of the double rack 12 .

[0028] In this embodiment, in order to drive the double rack 12 to move along the first slide 20 , a second cylinder 15 is installed on the side of the T-shaped support plate 11 .

[0029] See attached Figure 3 -Attached Figure 4 A symmetrical linkage gear 19 is also movably mounted on the T-shaped support plate 11, and the linkage gear 19 is respectively meshed with the double rack 12 and the single rack 17 on both sides.

[0030] In this embodiment, in order to synchronously drive the single racks 17 and the lower clamping plate 18 on both sides to clamp the vehicle body, a symmetrical linkage gear 19 is movably mounted on the T-shaped support plate 11 .

[0031] See attached Figure 2 A door panel 5 is provided on the side of the collecting bin 4.

[0032] In this embodiment, in order to facilitate the processing of welding slag, a door panel 5 is provided on the side of the collecting bin 4 .

[0033] See attached Figure 3 -Attached Figure 4 The inner walls of the upper clamping plate 14 and the lower clamping plate 18 are provided with anti-slip grooves.

[0034] In this embodiment, in order to increase the friction force and thus further improve the clamping effect, anti-slip grooves are provided on the inner walls of the upper clamping plate 14 and the lower clamping plate 18 .

[0035] See attached Figure 1 -Attached Figure 2 A plurality of supporting legs 2 are arranged at the bottom of the base plate 1 .

[0036] In this embodiment, in order to facilitate lifting of the bottom plate 1 and further collect welding slag, a plurality of groups of supporting legs 2 are provided at the bottom of the bottom plate 1 .

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A welding fixture for automobile body assembly, characterized in that: The invention comprises a bottom plate (1), wherein the bottom plate (1) is provided with a plurality of sliding grooves (6) at opposite corners, wherein symmetrical sliding rods (7) are arranged in the sliding grooves (6), wherein a movable plate (8) is slidably arranged on the sliding rods (7), wherein a clamp (9) is fixedly installed on the movable plate (8); wherein the clamp (9) comprises a T-shaped support plate (11) fixedly installed on the side of the movable plate (8), wherein a first sliding seat (20) is arranged in the middle part of the T-shaped support plate (11), wherein a double rack (10) is movably arranged on the first sliding seat (20) 2), the top of the double rack (12) is connected to a connecting plate (13), and the top of the connecting plate (13) is provided with an upper clamping plate (14) facing downward; symmetrical second slide seats (16) are provided on both sides of the T-shaped support plate (11), and a single rack (17) is movably provided on the second slide seat (16), and the top of the single rack (17) is connected to a lower clamping plate (18); a slag discharge port (3) is also opened in the middle of the bottom plate (1), and a collection bin (4) is provided at the bottom of the slag discharge port (3).

2. The automobile body assembly welding fixture according to claim 1, characterized in that: A first cylinder (10) is installed on the side of the base plate (1), and an output end of the first cylinder (10) is connected to the movable plate (8).

3. The automobile body assembly welding fixture according to claim 1, characterized in that: A second cylinder (15) is also installed on the side of the T-shaped support plate (11), and the output end of the second cylinder (15) is connected to the bottom of the double rack (12).

4. The automobile body assembly welding fixture according to claim 1, characterized in that: A symmetrical linkage gear (19) is also movably mounted on the T-shaped support plate (11), and the linkage gear (19) is respectively meshed with the double rack (12) and the single rack (17) on both sides.

5. The automobile body assembly welding fixture according to claim 1, characterized in that: A door panel (5) is provided on the side of the collecting bin (4).

6. The automobile body assembly welding fixture according to claim 1, characterized in that: Anti-slip grooves are arranged on the inner walls of the upper clamping plate (14) and the lower clamping plate (18).

7. The automobile body assembly welding fixture according to claim 1, characterized in that: A plurality of groups of supporting legs (2) are arranged at the bottom of the base plate (1).

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