Welding positioning clamp for exhaust lifting hook of automobile body
By designing a welding positioning fixture for the exhaust hooks of the automobile body, the problem of poor positioning accuracy and high cost of the exhaust hooks in the prior art is solved, and an efficient and accurate restructuring process is achieved, which shortens the time for restructuring the prototype.
Patent Information
- Application Number
- CN202421438494.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the existing automotive body exhaust hook modification technology, manual scribe positioning accuracy is poor and low efficiency, while special fixture positioning costs and cycles are long, making it difficult to quickly verify the design and save costs.
Design a welding positioning fixture for exhaust hooks on the vehicle body, including substrates, positioning pins, switch magnetic seats, positioning blocks and compression blocks, and precise positioning and welding of exhaust hooks is achieved through these components.
The fixture is simple in structure, low in cost and short in production time, which can ensure the accuracy of welding positioning of exhaust hooks and shorten the time of remodeling the prototype.
Smart Images
Figure CN222873686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile body welding trial production fixtures, in particular to an automobile body exhaust hook welding positioning fixture. Background Art
[0002] In the early stages of automobile development, the layout of the engine exhaust pipe on the vehicle body is often changed, and the location of the exhaust pipe installation hook needs to be changed accordingly. In order to quickly verify the design and save costs, a basic prototype is usually used to modify the design and verify the prototype. The existing vehicle chassis involves the modification of the exhaust hook. One method is to manually mark and position it before welding, which has the disadvantages of poor dimensional accuracy and low efficiency; the other method is to make a special fixture for positioning, which has a long cost and cycle. Summary of the invention
[0003] The utility model aims to overcome the deficiencies of the prior art and provide a welding positioning fixture for an exhaust hook of an automobile body.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A welding positioning fixture for an exhaust hook of an automobile body, comprising a base plate, two ends of the base plate are respectively fixed with positioning pins, and the two positioning pins are respectively used for plugging and matching with corresponding positioning holes on the body;
[0006] The two ends of the base plate are also fixed with switch magnetic seats respectively, and the two switch magnetic seats are respectively used to be adsorbed and fixed on the cross beam or longitudinal beam of the vehicle body;
[0007] A first positioning block and a second positioning block are fixed to the middle of the upper end surface of the substrate, and a third positioning block is fixed to the side of the first positioning block; a V-shaped groove is provided on the top of the first positioning block, a V-shaped groove is provided on the top of one side of the second positioning block, and the other side of the second positioning block is a support block; the exhaust hook has three ends, namely a first end, a second end and a third end, wherein the first end is placed in the V-shaped groove of the first positioning block and the end face of the first end is abutted against the third positioning block, the second end is placed in the V-shaped groove of the second positioning block, and the third end is abutted against the support block of the second positioning block;
[0008] The first positioning block is detachably connected to a pressing block, and the pressing block is used to press the first end of the exhaust hook.
[0009] Furthermore, pin seats are fixed to both ends of the base plate, and the lower ends of the two positioning pins are connected and fixed to the pin seats respectively.
[0010] Furthermore, a handle is fixed to the lower end surface of the base plate.
[0011] Furthermore, the pressing block is fixed to the first positioning block by manual bolt connection.
[0012] The utility model adopts the above technical scheme, has a simple structure, can be manufactured in a shorter time, has low cost, is simple and convenient to use and operate, can ensure the accuracy of exhaust hook welding positioning, and at the same time shorten the time for modifying the prototype vehicle. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention is further described in detail below with reference to the accompanying drawings and specific implementations:
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the working state of the utility model. DETAILED DESCRIPTION
[0016] like Figure 1-2 As shown, the utility model is a welding positioning fixture for exhaust hooks of automobile bodies, comprising a base plate 1, and a handle 2 is fixed to the lower end surface of the base plate 1. Positioning pins 3 are fixed to both ends of the base plate 1, and the two positioning pins 3 are respectively used to be plugged and matched with corresponding positioning holes on the body. Among them, pin seats 4 are fixed to both ends of the base plate 1, and the lower ends of the two positioning pins 3 are connected and fixed to the pin seats 4 respectively.
[0017] Switch magnetic seats 5 are fixed to both ends of the base plate 1 , respectively. The two switch magnetic seats 5 are used to be adsorbed and fixed on the cross beam or longitudinal beam of the vehicle body.
[0018] A first positioning block 6 and a second positioning block 7 are fixed to the middle of the upper end surface of the base plate 1, and a third positioning block 8 is fixed to the side of the first positioning block 6; a V-shaped groove is provided on the top of the first positioning block 6, a V-shaped groove is provided on the top of one side of the second positioning block 7, and the other side of the second positioning block 7 is a support block; the exhaust hook 10 has three ends, namely the first end, the second end and the third end, wherein the first end is placed in the V-shaped groove of the first positioning block 6 and the end face of the first end is abutted against the third positioning block 8, the second end is placed in the V-shaped groove of the second positioning block 7, and the third end is abutted against the support block of the second positioning block 7.
[0019] A pressing block 9 is detachably connected to the first positioning block 6, and the pressing block 9 is used to press the first end of the exhaust hook 10. The pressing block 9 is fixed to the first positioning block 6 by manual bolt connection.
[0020] The exhaust hook 10 needs to be positioned and clamped in the three directions of X, Y, and Z before being welded to the crossbeam or longitudinal beam of the vehicle body. The exhaust hook 10 is usually welded to the crossbeam or longitudinal beam of the vehicle body using carbon dioxide protection. The specific process is as follows:
[0021] 1. Place the three ends of the exhaust hook 10 as required and press them with the pressing block 9;
[0022] 2. After the exhaust hook 10 is positioned, the fixture as a whole is positioned in the positioning hole of the vehicle body using two positioning pins 3, and is fixed on the crossbeam or beam by two switch magnetic seats 5;
[0023] 3. Observe whether the exhaust hook 10 and the positioning block are displaced. If the exhaust needs to be adjusted, after each positioning block is well positioned and close to each other, lock the clamping block 9 and then weld the exhaust hook 10 (the second end and the third end) to the vehicle body.
[0024] 4. After welding is completed, loosen the clamping block 9, turn off the magnetic force of the two switch magnetic seats 5, and remove the simple clamp set.
[0025] The above describes the specific implementation of the present invention, but those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this implementation without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.
Claims
1. A welding and positioning fixture for exhaust hooks of automobile bodies, characterized in that: It includes a base plate, two ends of which are respectively fixed with positioning pins, and the two positioning pins are respectively used to be plugged and matched with corresponding positioning holes on the vehicle body; The two ends of the base plate are also fixed with switch magnetic seats respectively, and the two switch magnetic seats are respectively used to be adsorbed and fixed on the cross beam or longitudinal beam of the vehicle body; A first positioning block and a second positioning block are fixed to the middle of the upper end surface of the substrate, and a third positioning block is fixed to the side of the first positioning block; a V-shaped groove is provided on the top of the first positioning block, a V-shaped groove is provided on the top of one side of the second positioning block, and the other side of the second positioning block is a support block; the exhaust hook has three ends, namely a first end, a second end and a third end, wherein the first end is placed in the V-shaped groove of the first positioning block and the end face of the first end is abutted against the third positioning block, the second end is placed in the V-shaped groove of the second positioning block, and the third end is abutted against the support block of the second positioning block; The first positioning block is detachably connected to a pressing block, and the pressing block is used to press the first end of the exhaust hook.
2. The automobile body exhaust hook welding positioning fixture according to claim 1, characterized in that: Pin seats are fixed at both ends of the base plate, and the lower ends of the two positioning pins are connected and fixed on the pin seats.
3. The automobile body exhaust hook welding positioning fixture according to claim 1, characterized in that: A handle is fixed on the lower end surface of the base plate.
4. The automobile body exhaust hook welding positioning fixture according to claim 1, characterized in that: The pressing block is fixed on the first positioning block by manual bolt connection.