A welding fixture clamping mechanism with a movable plunger
By introducing a movable plunger and ball head structure into the welding fixture, the problem of unstable positioning of aluminum parts is solved, and stable clamping of irregular aluminum parts is achieved. It is suitable for parts that do not have "two pins and one surface" positioning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU LINGYUN AUTO PARTS CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-21
AI Technical Summary
Existing welding fixtures lack an effective positioning method when positioning aluminum reinforcing plates, resulting in some parts failing to be fixed or falling off, especially aluminum parts whose length exceeds or is less than the fixing width of the limiting block, which cannot be stably clamped.
A welding fixture clamping mechanism with a movable plunger is adopted. By setting a movable plunger and a movable ball head in the limit block, the tolerance of the aluminum parts is compensated, and the stable clamping of irregular aluminum parts is achieved.
It achieves stable fixing of aluminum parts that do not have "two pins and one surface" positioning, avoiding the problem of parts not being able to be installed or falling off due to tolerance fluctuations, and improving the applicability of the clamping mechanism.
Smart Images
Figure CN224526362U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a welding fixture clamping mechanism with a movable plunger. Background Technology
[0002] Existing welding fixtures rely on a "two-pin, one-face" positioning method for clamping. Currently, some aluminum reinforcing plates lack positioning holes, thus lacking this method. Adding positioning holes to the aluminum reinforcing plates would increase costs. Traditional clamping methods use two limiting blocks to clamp the ends of the part. However, because the length of the reinforcing plate fluctuates within the tolerance range, some parts cannot be inserted because their length exceeds the fixed width of the limiting blocks, while others fall because their length is less than the fixed width.
[0003] In order to solve the above problems, this utility model is hereby proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a welding fixture clamping mechanism with a movable plunger.
[0005] The objective of this utility model can be achieved through the following technical solutions:
[0006] A welding fixture clamping mechanism with a movable plunger includes a left end limiting block and a right end limiting block. A left limiting guide post is provided on the inner side of the left end limiting block, and a right limiting guide post is provided on the inner side of the right end limiting block. An irregular aluminum part is located on the left limiting guide post, and a right movable plunger is provided at the inner end of the right limiting guide post.
[0007] Preferably, a left movable plunger is provided on the inner side of the left end limiting block and above the left limiting guide post, and a right movable plunger is provided on the inner end of the right limiting guide post.
[0008] Furthermore, a left movable plunger is provided on the inner side of the left end limiting block and above the left limiting guide post.
[0009] Preferably, the left and right movable plungers are provided with movable ball heads inside.
[0010] Beneficial technical effects:
[0011] This invention replaces the original clamping mechanism without a plunger by adding a movable plunger inside the limiting block. The movable ball head inside the plunger compensates for the tolerances of the aluminum parts. This plunger-equipped clamping mechanism can better secure parts and can also be used to fix parts that do not have a "two-pin, one-face" positioning system. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a top-view structural diagram of the present invention.
[0015] Figure 3 This is a schematic diagram of the structure of this utility model viewed from below.
[0016] In the diagram, 1. Left end limiting block; 2. Right end limiting block; 3. Left limiting guide post; 4. Right limiting guide post; 5. Irregular aluminum part; 6. Left movable plunger; 7. Right movable plunger. Detailed Implementation
[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0018] Reference Figures 1-3 As shown, a welding fixture clamping mechanism with a movable plunger includes a left end limiting block 1 and a right end limiting block 2. A left limiting guide post 3 is provided inside the left end limiting block 1, and a right limiting guide post 4 is provided inside the right end limiting block 2. An irregularly shaped aluminum part 5 is located on the left limiting guide post 3. A left movable plunger 6 is provided inside the left end limiting block 1 and above the left limiting guide post 3. A right movable plunger 7 is provided at the inner end of the right limiting guide post 4. The left movable plunger 6 and the right movable plunger 7 are standard parts. The left movable plunger 6 and the right movable plunger 7 are provided with movable plungers inside. After the movable ball head and the irregularly shaped aluminum part 5 are placed on the left limiting guide post 3, that is, when the irregularly shaped aluminum part 5 is installed between the left limiting guide post 3 and the right limiting guide post 4, the left movable plunger 6 and the right movable plunger 7 press against the left and right ends of the irregularly shaped aluminum part 5. The movement of the movable ball head inside the left movable plunger 6 and the right movable plunger 7 compensates for the length tolerance of the irregularly shaped aluminum part 5, thereby clamping the beam end of the irregularly shaped aluminum part 5, and facilitating the positioning of the irregularly shaped surface of the irregularly shaped aluminum part 5. Finally, the irregularly shaped aluminum part 5 can be stably fixed between the left limiting guide post 3 and the right limiting guide post 4. The irregularly shaped aluminum part 5 is positioned by the clamping action of the left movable plunger 6 and the right movable plunger 7 at both ends.
[0019] The left movable plunger 6 and the right movable plunger 7 are also equipped with springs, which hold the movable ball head in the free state or slightly compressed state.
[0020] This invention replaces the original clamping mechanism without a plunger by adding a movable plunger inside the limiting block. The movable ball head inside the plunger compensates for the tolerances of the aluminum parts. This plunger-equipped clamping mechanism can better secure parts and can also be used to fix parts that do not have a "two-pin, one-face" positioning system.
[0021] This invention designs a limiting block with a movable plunger that is fixed on the clamping mechanism of a fixture, thereby ensuring that parts will not fail to fit or fall off even when there are fluctuations in the tolerance zone.
[0022] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A welding fixture clamping mechanism with a movable plunger, comprising a left end limiting block and a right end limiting block, characterized in that, The left end limiting block is provided with a left limiting guide post on its inner side, and the right end limiting block is provided with a right limiting guide post on its inner side. The irregular aluminum part is located on the left limiting guide post, and the right limiting guide post is provided with a right movable plunger at its inner end.
2. The welding fixture clamping mechanism with movable plunger according to claim 1, characterized in that, A left movable plunger is provided on the inner side of the left end limiting block and above the left limiting guide post.
3. The welding fixture clamping mechanism with movable plunger according to claim 2, characterized in that, The left and right movable plungers are equipped with movable ball heads inside.