Automobile side wall welding clamp

Abstract

The utility model relates to an automobile side wall welding clamp which comprises a bottom frame, an inner cavity penetrating through the two ends of the bottom frame is formed in the bottom frame, the top of the bottom frame is fixedly connected with an extrusion pad, two sets of movable shells are arranged in the inner cavity, and two sets of U-shaped frames are arranged at the tops of the movable shells. A lifting assembly coaxially arranged with the U-shaped frame is arranged in the moving shell, the U-shaped frame can be driven to vertically move through the lifting assembly, the end, away from the moving shell, of the U-shaped frame extends to the position above the extrusion pad and is fixedly connected with a first clamping block, and a second clamping block is arranged at the end, away from the U-shaped frame, of the first clamping block; a position adjusting assembly is arranged on one side of the first clamping block, the second clamping block can be driven to rotate on one side of the first clamping block through the position adjusting assembly, side walls of different sizes can be clamped and fixed through the side wall welding device, and the situation that the welding quality is affected due to looseness when the side walls are welded is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of automobiles, in particular to a welding fixture for automobile side panels. Background Art

[0002] Before welding the side panels of a car, such as a car door, a clamp is needed to fix it. Patent application number CN201920152543.3 discloses a side panel welding clamp for a car, including a clamp, a welding base, a car door, fixing bolts, a car window, a compression pad and a welding base, wherein the welding base includes a compression pad and a welding base.

[0003] However, the clamp in the above-mentioned prior art is fixed on the welding base and has limited movement, and it is difficult to clamp and fix the side panels of different sizes. During the welding process, the side panels are prone to loosening, which affects the quality of welding. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a welding fixture for the side panel of an automobile. The specific technical scheme is as follows:

[0005] The automobile side panel welding fixture comprises a bottom frame, an inner cavity penetrating through two ends of the bottom frame is provided inside the bottom frame, an extrusion pad is fixedly connected to the top of the bottom frame, two groups of movable shells are arranged inside the inner cavity, two groups of U-shaped frames are arranged on the top of the movable shells, a lifting assembly arranged coaxially with the U-shaped frame is arranged inside the movable shell, the U-shaped frame can be driven to move vertically by the lifting assembly, one end of the U-shaped frame away from the movable shell extends to above the extrusion pad and is fixedly connected to a first clamping block, the end of the first clamping block away from the U-shaped frame is provided with a second clamping block, a positioning assembly is arranged on one side of the first clamping block, and the positioning assembly can drive the second clamping block to rotate on one side of the first clamping block.

[0006] As an improvement of the above technical solution: the lifting assembly includes a first hydraulic cylinder, the top output rod of the first hydraulic cylinder is fixedly connected to a connecting block, a limited top groove is opened on the top of the movable shell, and the connecting block slides through the limited top groove and is fixedly connected to the bottom end of the U-shaped frame.

[0007] As an improvement of the above technical solution: a driving motor is fixedly installed on one side of the inner wall of the moving shell, and the output end of the driving motor is fixedly connected to a first threaded rod, the other end of the first threaded rod is rotatably connected to the other side of the inner wall of the moving shell, and two groups of first nut blocks are symmetrically threaded on the first threaded rod, and the top of each first nut block is fixedly connected to the bottom end of one of the connecting blocks; the interior of the moving shell is also fixedly connected to a guide rod arranged parallel to the first threaded rod, and the bottom end of the first nut block is slidably sleeved on the surface of the guide rod.

[0008] As an improvement of the above technical solution: the positioning assembly includes a second nut block fixedly connected to the first clamping block, a second threaded rod is threadedly connected to the second nut block, one end of the second threaded rod passes through the first clamping block and is fixedly connected to the middle part of one side of the second clamping block, and the other end of the second threaded rod is fixedly connected to a turning handle.

[0009] As an improvement of the above technical solution: a second hydraulic cylinder is fixedly installed in the middle of the inner cavity, wherein one of the movable shells is slidably connected to one side of the inner cavity, and the output rod of the second hydraulic cylinder is fixedly connected to one side of the movable shell, wherein the other movable shell is fixedly connected to the other side of the inner cavity.

[0010] As an improvement of the above technical solution: it also includes a controller fixedly installed on one side of the bottom frame, and the driving motor, the first hydraulic cylinder and the second hydraulic cylinder are all electrically connected to the controller.

[0011] As an improvement of the above technical solution: a second silicone pad is fixedly connected to the bottom of the second clamping block, and a first silicone pad is fixedly connected to one side of the first clamping block close to the second clamping block.

[0012] Beneficial effects of the utility model:

[0013] When welding the side panel of the automobile, the second hydraulic cylinder drives the two first clamping blocks on the other side of the bottom frame to approach the side panel and cling to the first silicone pad on one side of the first clamping block, thereby clamping and fixing the two ends of the side panel, and the controller controls the driving motor to rotate to drive the second clamping blocks on the two U-shaped frames to move toward or away from each other so that the second clamping blocks are close to the top side of the side panel, and then the adjustment component drives the second clamping block to rotate so that the bottom side surface of the second clamping block is flush with the top side surface of the side panel, and then the lifting component drives the second clamping block connected to one side of the U-shaped frame to move toward the top side of the side panel until the second silicone pad at the bottom of the second clamping block is in close contact with the top side surface of the side panel, so that side panels of different sizes can be clamped and fixed through the present application to avoid loosening during welding of the side panel and affecting the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The three-dimensional structure of the utility model is shown as a whole Figure 1 ;

[0015] Figure 2 The three-dimensional structure of the utility model is shown as a whole Figure 2 ;

[0016] Figure 3 It is a structural schematic diagram of the moving shell in the utility model.

[0017] Figure numerals: 1. bottom frame; 10. inner cavity; 11. controller; 2. movable shell; 20. limiting top groove; 21. driving motor; 22. first nut block; 23. first threaded rod; 24. first hydraulic cylinder; 25. connecting block; 3. U-shaped frame; 4. first clamping block; 40. first silicone pad; 41. second clamping block; 411. second silicone pad; 42. second nut block; 43. second threaded rod; 5. extrusion pad; 6. second hydraulic cylinder. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Example

[0020] Please refer to Figure 1-Figure 3 , a welding fixture for automobile side panel, comprises a bottom frame 1, an inner cavity 10 penetrating through both ends of the bottom frame 1 is provided inside the bottom frame 1, a compression pad 5 is fixedly connected to the top of the bottom frame 1, specifically, the compression pad 5 is an elastic compression pad in the prior art, the automobile side panel is placed on the compression pad 5, and then squeezed hard, so that the automobile side panel can be fitted with the compression pad 5, so that the automobile side panel can be stably placed on the compression pad 5 at the top of the bottom frame 1, two groups of moving shells 2 are arranged inside the inner cavity 10, two groups of U-shaped frames 3 are arranged on the top of the moving shell 2, a lifting assembly arranged coaxially with the U-shaped frame 3 is arranged inside the moving shell 2, the U-shaped frame 3 can be driven to move vertically by the lifting assembly, one end of the U-shaped frame 3 away from the moving shell 2 extends to the top of the compression pad 5 and is fixedly connected with a first clamping block 4, one end of the first clamping block 4 away from the U-shaped frame 3 is provided with a second clamping block 41, one side of the first clamping block 4 is provided with a positioning assembly, and the second clamping block 41 can be driven to rotate on one side of the first clamping block 4 by the positioning assembly.

[0021] In an optional embodiment: the lifting assembly includes a first hydraulic cylinder 24, the top output rod of the first hydraulic cylinder 24 is fixedly connected to a connecting block 25, a limiting top groove 20 is opened on the top of the movable shell 2, and the connecting block 25 slides through the limiting top groove 20 and is fixedly connected to the bottom end of the U-shaped frame 3. Specifically, both sides of the connecting block 25 are slidably connected to the limiting top groove 20, so that the connecting block 25 and the U-shaped frame 3 can be limited.

[0022] In an optional embodiment: a driving motor 21 is fixedly installed on one side of the inner wall of the moving shell 2, and the output end of the driving motor 21 is fixedly connected to a first threaded rod 23, and the other end of the first threaded rod 23 is rotatably connected to the other side of the inner wall of the moving shell 2, and two groups of first nut blocks 22 are symmetrically threaded on the first threaded rod 23, and the top of each first nut block 22 is fixedly connected to the bottom end of a connecting block 25, and the interior of the moving shell 2 is also fixedly connected to a guide rod arranged parallel to the first threaded rod 23, and the bottom end of the first nut block 22 is slidably sleeved on the surface of the guide rod, and the first nut block 22 can be limited by the guide rod, so that the two first nut blocks 22 can be stably moved. Furthermore, two groups of threads with opposite directions are provided on the first threaded rod 23, and this thread matches the inner side wall of the first nut block 22. When the first threaded rod 23 is rotated, the first nut block 22 can drive the connecting block 25 connected to the first hydraulic cylinder 24 and the U-shaped frame 3 to move toward or away from each other.

[0023] In an optional embodiment: the positioning assembly includes a second nut block 42 fixedly connected to the first clamping block 4, a second threaded rod 43 is threadedly connected to the second nut block 42, one end of the second threaded rod 43 passes through the first clamping block 4 and is fixedly connected to the middle part of one side of the second clamping block 41, and the other end of the second threaded rod 43 is fixedly connected to a turning handle, and the second clamping block 41 can be driven to rotate by turning the turning handle, thereby adjusting the position of the second clamping block 41.

[0024] In an optional embodiment: a second hydraulic cylinder 6 is fixedly installed in the middle of the inner cavity 10, wherein one movable shell 2 is slidably connected to one side of the inner cavity 10, and the output rod of the second hydraulic cylinder 6 is fixedly connected to one side of this movable shell 2, wherein the other movable shell 2 is fixedly connected to the other side of the inner cavity 10, so that the second hydraulic cylinder 6 can push the two U-shaped frames 3 connected to the movable shell 2 in the inner cavity 10 to move above the extrusion pad 5.

[0025] In an optional embodiment: it also includes a controller 11 fixedly installed on one side of the bottom frame 1, and the drive motor 21, the first hydraulic cylinder 24 and the second hydraulic cylinder 6 are all electrically connected to the controller, so as to facilitate their control.

[0026] In an optional embodiment: the bottom of the second clamping block 41 is fixedly connected with a second silicone pad 411, and the side of the first clamping block 40 close to the second clamping block 41 is fixedly connected with the first silicone pad 40, and the side enclosure can be protected by the second silicone pad 411 and the first silicone pad 40.

[0027] When welding the side wall of the automobile, first put the side wall on the top of the extrusion pad 5, then one end of the extrusion pad 5 approaches the two first clamping blocks 4 on one side of the bottom frame 1 and is close to the first silicone pad 40, and then the side wall is pressed onto the extrusion pad 5 with force, and then the two first clamping blocks 4 on the other side of the bottom frame 1 are driven by the second hydraulic cylinder 6 to approach the side wall and be close to the first silicone pad 40 on one side of the first clamping block 4, so that the two ends of the side wall are clamped and fixed, and the controller controls the driving motor 21 to rotate and drive the second clamping blocks 4 on the two U-shaped frames 3 The second clamping block 41 is moved toward or away from the side wall by moving the second clamping block 41 toward the top side of the side wall, and then the second clamping block 41 is driven to rotate by the adjusting assembly so that the bottom side surface of the second clamping block 41 is flush with the top side surface of the side wall, and then the second clamping block 41 connected to one side of the U-shaped frame 3 is driven to move toward the top side of the side wall by the lifting assembly until the second silicone pad 411 at the bottom of the second clamping block 41 is tightly attached to the top side surface of the side wall, so that side walls of different sizes can be clamped and fixed by the present application to avoid loosening during welding of the side wall and affecting the welding quality.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vehicle side panel welding fixture, comprising a bottom frame (1), wherein an inner cavity (10) is provided inside the bottom frame (1) and passes through both ends of the bottom frame (1), and a compression pad (5) is fixedly connected to the top of the bottom frame (1), characterized in that: Two groups of movable shells (2) are arranged inside the inner cavity (10), two groups of U-shaped frames (3) are arranged on the top of the movable shells (2), and a lifting assembly arranged coaxially with the U-shaped frame (3) is arranged inside the movable shells (2), and the U-shaped frame (3) can be driven to move vertically by the lifting assembly, and one end of the U-shaped frame (3) away from the movable shell (2) extends to the top of the compression pad (5) and is fixedly connected to a first clamping block (4), and one end of the first clamping block (4) away from the U-shaped frame (3) is provided with a second clamping block (41), and a positioning assembly is arranged on one side of the first clamping block (4), and the second clamping block (41) can be driven to rotate on one side of the first clamping block (4) by the positioning assembly.

2. The automobile side panel welding fixture according to claim 1, characterized in that: The lifting assembly comprises a first hydraulic cylinder (24), a top output rod of the first hydraulic cylinder (24) being fixedly connected to a connecting block (25), a top limiting top groove (20) being provided on the top of the movable shell (2), and the connecting block (25) being fixedly connected to the bottom end of the U-shaped frame (3) after sliding through the top limiting top groove (20).

3. The automobile side panel welding fixture according to claim 2, characterized in that: A driving motor (21) is fixedly mounted on one side of the inner wall of the moving shell (2); an output end of the driving motor (21) is fixedly connected to a first threaded rod (23); the other end of the first threaded rod (23) is rotatably connected to the other side of the inner wall of the moving shell (2); two groups of first nut blocks (22) are symmetrically threadedly connected to the first threaded rod (23); the top end of each first nut block (22) is fixedly connected to the bottom end of a connecting block (25); a guide rod arranged parallel to the first threaded rod (23) is also fixedly connected inside the moving shell (2); the bottom end of the first nut block (22) is slidably sleeved on the surface of the guide rod.

4. The automobile side panel welding fixture according to claim 3, characterized in that: The positioning assembly comprises a second nut block (42) fixedly connected to the first clamp block (4); a second threaded rod (43) is threadedly connected to the second nut block (42); one end of the second threaded rod (43) passes through the first clamp block (4) and is fixedly connected to the middle part of one side of the second clamp block (41); and the other end of the second threaded rod (43) is fixedly connected to a turning handle.

5. The automobile side panel welding fixture according to claim 4, characterized in that: A second hydraulic cylinder (6) is fixedly installed in the middle of the inner cavity (10), wherein one of the movable shells (2) is slidably connected to one side of the inner cavity (10), and an output rod of the second hydraulic cylinder (6) is fixedly connected to one side of the movable shell (2), and the other movable shell (2) is fixedly connected to the other side of the inner cavity (10).

6. The automobile side panel welding fixture according to claim 5, characterized in that: It also includes a controller (11) fixedly mounted on one side of the bottom frame (1), and the drive motor (21), the first hydraulic cylinder (24) and the second hydraulic cylinder (6) are all electrically connected to the controller (11).

7. The automobile side panel welding fixture according to claim 6, characterized in that: A second silicone pad (411) is fixedly connected to the bottom of the second clamping block (41), and a first silicone pad (40) is fixedly connected to a side of the first clamping block (4) close to the second clamping block (41).

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