Automobile body welding fixture

Abstract

The utility model discloses an automobile body welding fixture which comprises a bottom plate, two crossed supporting rods are arranged on the upper surface of the bottom plate, the middles of the two supporting rods are rotationally connected, the bottom ends of the two supporting rods are rotationally connected with movable seats, and the top ends of the two supporting rods are rotationally connected with sliding seats. A supporting plate used for placing a vehicle body is arranged at the top ends of the two supporting rods, and a T-shaped guide rail is fixedly connected to the lower surface of the supporting plate. According to the device, the bottom plate, the supporting rod, the supporting plate, the bidirectional lead screw, the first motor, the first electric telescopic rod, the first clamping plate, the rotating shaft and the second clamping plate are arranged, a vehicle body is supported through the supporting plate, then the vehicle body is clamped through the first clamping plate and the second clamping plate, then the supporting plate descends, and at the moment, the vehicle body can rotate under clamping of the two clamping plates; accordingly, the angle of the vehicle body can be changed, the welding position of the vehicle body is adjusted, welding equipment can weld all the positions conveniently, and then the welding difficulty is reduced.

Description

Technical Field

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

[0002] In the process of assembly and welding of automobile bodies, in order to ensure product quality, improve labor productivity and reduce labor intensity, some tools and devices used to clamp and determine the position of workpieces are often used to complete assembly and welding work. We collectively refer to these tools and devices as welding fixtures.

[0003] The existing body welding fixture clamps and fixes the body from the inside and outside of the body, which results in that the angle of the body cannot be adjusted after being fixed. However, during actual welding, a welding dead angle will appear at the welding position inside the body, which makes welding more difficult. Therefore, the utility model proposes a car body welding fixture. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a welding fixture for an automobile body.

[0005] The camshaft is an axially coupled machine which is adapted to move the two guide rails together and to provide a means for axially coupling the two guide rails together so as to allow the two guide rails to move relative to each other.

[0006] Furthermore, the horizontal moving assembly includes a vertical plate fixed to the upper surface of the base plate and a first gearbox, a guide rod is fixedly connected between the outer side wall of the first gearbox and the vertical plate, and the guide rod passes through the two moving seats and is slidably connected to the two moving seats.

[0007] Furthermore, the horizontal moving assembly also includes a bidirectional screw rod fixedly connected to the output end of the first gearbox and a first motor fixedly connected to the input end of the first gearbox. The bidirectional screw rod passes through two moving seats and is threadedly connected to the two moving seats. The bidirectional screw rod is rotationally connected to the vertical plate at one end away from the first gearbox.

[0008] Furthermore, the rotary drive assembly includes a second gearbox fixed to the surface of the first side plate, and the output end of the second gearbox is fixedly connected to the rotating shaft, and the input end of the second gearbox is fixedly connected to the second motor.

[0009] Furthermore, adjacent sides of the first clamping plate and the second clamping plate are fixedly connected with rubber pads.

[0010] Furthermore, the locking assembly includes a horizontal plate fixed to the top end of the first side plate, and the upper surface of the horizontal plate is fixedly connected to the second electric telescopic rod, and the bottom telescopic end of the second electric telescopic rod is fixedly connected to the arc-shaped pressure plate.

[0011] Furthermore, a rubber pad is fixedly connected to the lower surface of the arc-shaped pressing plate.

[0012] Beneficial effects of the utility model:

[0013] When the utility model is in use, the automobile body welding fixture is provided with a base plate, a support rod, a support plate, a bidirectional screw rod, a first motor, a first electric telescopic rod, a first clamping plate, a rotating shaft and a second clamping plate. The automobile body is first supported by the support plate, and then the automobile body is clamped by the first clamping plate and the second clamping plate and then the support plate is lowered. At this time, the automobile body can be rotated under the clamping of the two clamping plates, so that the angle of the automobile body can be changed, and the welding position of the automobile body can be adjusted, which is convenient for the welding equipment to weld at various positions, thereby reducing the difficulty of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 : An overall schematic diagram of the utility model;

[0016] Figure 2 : A three-dimensional diagram of the support plate of the utility model;

[0017] Figure 3 : A three-dimensional diagram of the locking assembly of the present invention.

[0018] The reference numerals are as follows:

[0019] 1. Bottom plate; 2. Support rod; 21. Moving seat; 22. Sliding seat; 3. Support plate; 31. T-shaped guide rail; 4. Vertical plate; 5. First gearbox; 6. Guide rod; 7. Bidirectional screw rod; 8. First motor; 9. First side plate; 10. Second side plate; 11. First electric telescopic rod; 12. First clamping plate; 13. Rotating shaft; 14. Second clamping plate; 15. Second gearbox; 16. Second motor; 17. Locking assembly; 171. Cross plate; 172. Second electric telescopic rod; 173. Arc pressure plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. 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.

[0021] like Figure 1-Figure 3 As shown, it relates to a welding fixture for automobile body, including a bottom plate 1, two cross-support rods 2 are arranged on the upper surface of the bottom plate 1 and are rotatably connected in the middle, the bottom ends of the two support rods 2 are rotatably connected to a moving seat 21, the top ends of the two support rods 2 are rotatably connected to a slide seat 22, the top ends of the two support rods 2 are arranged with a support plate 3 for placing the car body, the lower surface of the support plate 3 is fixedly connected to a T-shaped guide rail 31, the two slide seats 22 are slidably connected to the T-shaped guide rail 31, and the upper surface of the bottom plate 1 is equipped with a drive for the two moving seats 21 to move A horizontal movement component, a first side plate 9 and a second side plate 10 are respectively fixed on both sides of the upper surface of the bottom plate 1, a first electric telescopic rod 11 is fixed on the top of the second side plate 10, and the telescopic end surface of the first electric telescopic rod 11 is rotatably connected to the first clamping plate 12, the top of the first side plate 9 is rotatably connected to the rotating shaft 13, the rotating shaft 13 is fixedly connected to the second clamping plate 14 at one end away from the first side plate 9, a rotating driving component for driving the rotating shaft 13 to rotate is provided on the side wall at the top end of the first side plate 9, and a locking component 17 is fixed to the top end of the first side plate 9.

[0022] like Figure 1-Figure 2 As shown, the horizontal moving assembly includes a vertical plate 4 and a first gearbox 5 fixed to the upper surface of the base plate 1, and a guide rod 6 is fixedly connected between the outer wall of the first gearbox 5 and the vertical plate 4. The guide rod 6 passes through the two moving seats 21 and is slidably connected to the two moving seats 21.

[0023] The two movable seats 21 can move horizontally along the guide rod 6. When the two movable seats 21 approach each other, the angle between the two support rods 2 becomes smaller, thereby driving the two slide seats 22 to approach each other, which will drive the support plate 3 to rise. When the two movable seats 21 move away from each other, the support plate 3 will drop.

[0024] like Figure 1-Figure 2 As shown, the horizontal moving assembly also includes a bidirectional screw rod 7 fixedly connected to the output end of the first gearbox 5 and a first motor 8 fixedly connected to the input end of the first gearbox 5. The bidirectional screw rod 7 passes through two moving seats 21 and is threadedly connected to the two moving seats 21. The end of the bidirectional screw rod 7 away from the first gearbox 5 is rotationally connected to the vertical plate 4.

[0025] After the bidirectional screw rod 7 is driven to rotate by the first motor 8 , the bidirectional screw rod 7 will drive the two moving seats 21 to move closer to or farther from each other, thereby achieving the lifting and lowering of the supporting plate 3 .

[0026] like Figure 1 As shown, the rotary drive assembly includes a second gearbox 15 fixed to the surface of the first side plate 9 , and the output end of the second gearbox 15 is fixedly connected to the rotating shaft 13 , and the input end of the second gearbox 15 is fixedly connected to the second motor 16 .

[0027] When the first clamping plate 12 moves toward the second clamping plate 14 and the vehicle body is clamped by the first clamping plate 12 and the second clamping plate 14, the first clamping plate 12 is driven to rotate by the second motor 16 to flip the vehicle body, thereby changing the angle of the vehicle body so that all angles of the vehicle body can face upward, avoiding welding dead angles and reducing welding difficulty.

[0028] like Figure 1 As shown, rubber pads are fixedly connected to adjacent sides of the first clamping plate 12 and the second clamping plate 14 .

[0029] When the first clamping plate 12 and the second clamping plate 14 clamp the vehicle body, the rubber pad protects the surface of the vehicle body from being squeezed and damaged.

[0030] like Figure 1 and Figure 3 As shown, the locking assembly 17 includes a horizontal plate 171 fixed to the top of the first side plate 9, and the upper surface of the horizontal plate 171 is fixedly connected to the second electric telescopic rod 172, and the bottom telescopic end of the second electric telescopic rod 172 is fixedly connected to the arc-shaped pressing plate 173. The lower surface of the arc-shaped pressing plate 173 is fixedly connected to a rubber pad.

[0031] When the second motor 16 drives the rotating shaft 13 to rotate and adjust the angle of the vehicle body, the second electric telescopic rod 172 can be started to drive the arc-shaped pressure plate 173 to descend and fit closely with the rotating shaft 13, thereby fixing the rotating shaft 13.

[0032] Working principle: first, place the car body on the surface of the support plate 3, then start the first electric telescopic rod 11 to drive the first clamping plate 12 to move, so that the first clamping plate 12 and the second clamping plate 14 can clamp and fix the car body, then start the first motor 8 to drive the bidirectional screw rod 7 to rotate, and the bidirectional screw rod 7 drives the two moving seats 21 away from each other, so that the angle between the two support rods 2 becomes larger. At this time, the support plate 3 drops and separates from the car body to prevent the support plate 3 from affecting the rotation of the car body. During welding, the second motor 16 can be started to drive the rotating shaft 13 to rotate a specified angle, thereby adjusting the angle of the car body.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle body welding fixture, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is provided with two cross-support rods (2) which are rotatably connected in the middle, the bottom ends of the two support rods (2) are rotatably connected with a moving seat (21), the top ends of the two support rods (2) are rotatably connected with a sliding seat (22), the top ends of the two support rods (2) are provided with a support plate (3) for placing the vehicle body, the lower surface of the support plate (3) is fixedly connected with a T-shaped guide rail (31), the two sliding seats (22) are slidably connected to the T-shaped guide rail (31), the upper surface of the base plate (1) is installed with a horizontal moving component for driving the two moving seats (21) to move, and the base plate (1) A first side plate (9) and a second side plate (10) are respectively fixed on both sides of the upper surface; a first electric telescopic rod (11) is fixed on the top end of the second side plate (10); and a first clamping plate (12) is rotatably connected to the telescopic end surface of the first electric telescopic rod (11); a rotating shaft (13) is rotatably connected to the top end of the first side plate (9); an end of the rotating shaft (13) away from the first side plate (9) is fixedly connected to the second clamping plate (14); a rotating driving component for driving the rotating shaft (13) to rotate is provided on the side wall at the top end of the first side plate (9); and a locking component (17) is fixed to the top end of the first side plate (9).

2. The automobile body welding fixture according to claim 1, characterized in that: The horizontal moving assembly comprises a vertical plate (4) fixed to the upper surface of the bottom plate (1) and a first gearbox (5); a guide rod (6) is fixedly connected between the outer side wall of the first gearbox (5) and the vertical plate (4); the guide rod (6) passes through two moving seats (21) and is slidably connected to the two moving seats (21).

3. The automobile body welding fixture according to claim 2, characterized in that: The horizontal moving assembly further comprises a bidirectional screw rod (7) fixedly connected to the output end of the first gearbox (5) and a first motor (8) fixedly connected to the input end of the first gearbox (5); the bidirectional screw rod (7) passes through the two moving seats (21) and is threadedly connected to the two moving seats (21); and the end of the bidirectional screw rod (7) away from the first gearbox (5) is rotationally connected to the vertical plate (4).

4. The automobile body welding fixture according to claim 1, characterized in that: The rotary drive assembly comprises a second gearbox (15) fixed to the surface of the first side plate (9), and the output end of the second gearbox (15) is fixedly connected to the rotating shaft (13), and the input end of the second gearbox (15) is fixedly connected to a second motor (16).

5. The automobile body welding fixture according to claim 1, characterized in that: Adjacent sides of the first clamping plate (12) and the second clamping plate (14) are both fixedly connected with rubber pads.

6. The automobile body welding fixture according to claim 1, characterized in that: The locking assembly (17) comprises a transverse plate (171) fixed to the top end of the first side plate (9), and a second electric telescopic rod (172) is fixedly connected to the upper surface of the transverse plate (171), and an arc-shaped pressing plate (173) is fixedly connected to the bottom telescopic end of the second electric telescopic rod (172).

7. The automobile body welding fixture according to claim 6, characterized in that: A rubber pad is fixedly connected to the lower surface of the arc-shaped pressing plate (173).

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