A welding fixture for a back cover

Abstract

This utility model relates to the field of back cover processing technology, and in particular to a back cover welding fixture. Multiple first threaded holes are machined on both sides of the slide rod. The inner walls of the first and second threaded holes are threaded with bolts, and the outer wall of the slide rod is slidably connected to a sliding groove. This back cover welding fixture, through the cooperation of a vertical rod and an adjusting structure, allows the bolts on both sides of the vertical rod to be rotated, causing them to unscrew from the first and second threaded holes. Then, the support column is manually moved, causing the slide rod to slide along the inner wall of the sliding groove. When the first and second threaded holes at the corresponding heights on the slide rod are aligned, the operator rotates the multiple bolts, causing their ends to screw into the first and second threaded holes, thereby fixing the slide rod. This allows for adjustment of the support column height, enabling the workpiece to be adjusted to the optimal welding position within a certain range, reducing welding deviations.

Description

Technical Field

[0001] This utility model relates to the field of back cover processing technology, specifically a back cover welding fixture. Background Technology

[0002] A rear cover generally refers to a cover structure installed at the rear of a vehicle, machinery, or other equipment, serving protective and decorative purposes. Taking automobiles as an example, the rear cover (also commonly referred to as a trunk cover, tailgate cover, or related components) typically requires welding using welding jigs during the production process.

[0003] In the prior art, the support columns and support frames on the welding jig for the back cover support the workpiece. The support columns are usually welded to the base and can only support back covers of a specific size. When the size of part of the back cover (i.e. the curvature of the inner side of the back cover) changes, the support columns cannot be adjusted, making it impossible to adjust the workpiece to the optimal welding position, which can easily lead to welding deviations. Utility Model Content

[0004] The purpose of this invention is to solve the problem that when the size of part of the back cover (i.e., the curvature of the inner side of the back cover) changes, the support column cannot be adjusted, making it impossible to adjust the workpiece to the optimal welding position and easily leading to welding deviation. Therefore, a back cover welding fixture is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a welding fixture for a back cover, including a base and vertical rods. Multiple vertical rods are fixedly connected to the top of the base. An adjustment structure is provided inside the vertical rods. The adjustment structure includes a slide rod. Multiple first threaded holes are machined on both sides of the slide rod. The inner walls of the first threaded holes and the second threaded holes are threaded with bolts. The outer walls of the slide rods are slidably connected with sliding grooves.

[0007] This setting allows the slide bar to be limited by a set groove, enabling it to move vertically.

[0008] Preferably, the top of each sliding rod is fixedly connected to a support column.

[0009] This setting allows the sliding rod to move, which in turn moves the support column, thus adjusting the height of the support column within a certain range.

[0010] Preferably, the second threaded holes are all machined on both sides of the inner wall of the vertical rod.

[0011] This feature allows the slide bar to be fixed by using the second threaded hole, the first threaded hole, and the bolt.

[0012] Preferably, the grooves are all machined on the inner wall of the vertical rod.

[0013] This setting: The slide bar slides within the slide groove, which limits the movement trajectory of the slide bar, allowing it to move only in a specific direction, thereby ensuring the accuracy of position adjustment.

[0014] Preferably, the top of each support column is inserted into the frame.

[0015] This feature: The back cover shell can be supported by support columns and frames.

[0016] The back cover welding fixture proposed in this utility model has the following advantages: By cooperating with the vertical rod and the adjustment structure, the bolts on both sides of the multiple vertical rods are rotated to unscrew them from the first and second threaded holes. Then, the support column is manually moved, and the movement of the support column causes the slide rod to slide along the inner wall of the slide groove. When the first threaded hole and the second threaded hole at the corresponding height on the slide rod are aligned, the operator will rotate the multiple bolts to screw their ends into the first and second threaded holes, thereby fixing the slide rod. This allows the height of the support column to be adjusted, and within a certain range, the workpiece can be adjusted to the optimal welding position, reducing the occurrence of welding deviations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 for Figure 1 A partial front sectional view;

[0019] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0020] Figure 4 This is a three-dimensional schematic diagram of the vertical rod;

[0021] Figure 5 for Figure 1 A magnified view of part B in the diagram.

[0022] In the diagram: 1. Base, 2. Adjustment structure, 201. Slide rod, 202. First threaded hole, 203. Second threaded hole, 204. Bolt, 205. Slide groove, 3. Support column, 4. Frame, 5. Vertical rod. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] See attached document Figure 1-5In this embodiment, a back cover welding fixture includes a base 1 and vertical rods 5. Multiple vertical rods 5 are fixedly connected to the top of the base 1. The multiple vertical rods 5 and the sliding rods 201 are of different sizes. An adjustment structure 2 is provided inside the vertical rod 5. The adjustment structure 2 includes a sliding rod 201. Multiple first threaded holes 202 are machined on both sides of the sliding rod 201. The inner walls of the first threaded holes 202 and the second threaded holes 203 are threadedly connected to bolts 204. The outer walls of the sliding rod 201 are slidably connected to the sliding grooves 205.

[0025] The upper part of the slide rod 201 is fixedly connected to the support column 3. The second threaded hole 203 is machined on both sides of the inner wall of the vertical rod 5. The sliding groove 205 is machined on the inner wall of the vertical rod 5. The upper part of the support column 3 is inserted into the frame 4. When the support column 3 is moved manually, the slide rod 201 slides along the inner wall of the sliding groove 205. When the first threaded hole 202 and the second threaded hole 203 at the corresponding height on the slide rod 201 are aligned, the operator will rotate multiple bolts 204 so that their ends are screwed into the first threaded hole 202 and the second threaded hole 203, thereby fixing the slide rod 201. This allows the height of the support column 3 to be adjusted. Within a certain range, the workpiece can be adjusted to the optimal welding position, reducing the occurrence of welding deviations.

[0026] Working principle:

[0027] When using welding fixtures for the back cover:

[0028] The operator first adjusts the height of multiple support columns 3 according to the curvature inside the back cover. The operator then rotates the bolts 204 on both sides of multiple vertical rods 5 to unscrew them from the first threaded hole 202 and the second threaded hole 203. Then, the operator manually moves the support column 3. The movement of the support column 3 causes the slide rod 201 to slide along the inner wall of the slide groove 205. When the first threaded hole 202 and the second threaded hole 203 at the corresponding height on the slide rod 201 are aligned, the operator rotates the multiple bolts 204 to screw their ends into the first threaded hole 202 and the second threaded hole 203, thereby fixing the slide rod 201. This allows the height of the support column 3 to be adjusted. Within a certain range, the workpiece can be adjusted to the optimal welding position, reducing welding deviations.

[0029] After the heights of the multiple support columns 3 are adjusted, the matching frame 4 is placed on top of the multiple support columns 3, and then the outer shell of the back cover is placed on the frame 4 for welding.

[0030] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A welding fixture for a back cover, comprising a base (1) and vertical rods (5), wherein a plurality of vertical rods (5) are fixedly connected above the base (1), characterized in that: The vertical rod (5) is provided with an adjustment structure (2) inside. The adjustment structure (2) includes a slide rod (201). Multiple first threaded holes (202) are machined on both sides of the slide rod (201). The inner walls of the first threaded holes (202) and the second threaded holes (203) are threadedly connected to bolts (204). The outer wall of the slide rod (201) is slidably connected to the sliding groove (205).

2. The welding fixture for the back cover according to claim 1, characterized in that: The slide rod (201) is fixedly connected to the support column (3) above.

3. The welding fixture for the back cover according to claim 1, characterized in that: The second threaded hole (203) is machined on both sides of the inner wall of the vertical rod (5).

4. The welding fixture for the back cover according to claim 1, characterized in that: The grooves (205) are all machined on the inner wall of the vertical rod (5).

5. The welding fixture for the back cover according to claim 2, characterized in that: The support columns (3) are all inserted into the frame (4) above.

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