A thin metal plate welding anti-deformation positioning tool
By designing anti-deformation positioning fixtures and using small radiators to cool and fix thin metal plates, the problem of heat deformation during the welding process of thin metal plates was solved, thus improving welding quality and precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU CHANGBAI METAL PROD CO LTD
- Filing Date
- 2025-06-22
- Publication Date
- 2026-06-09
AI Technical Summary
Thin metal sheets are prone to deformation during welding due to absorbing too much heat, which affects the welding quality and precision.
A welding anti-deformation positioning fixture was designed, comprising a placement platform, slide rail, pressure rod, metal rod, spring, metal ring, and small heat sink. The small heat sink is used to cool the surface of the thin metal plate before welding, preventing heat accumulation, and multiple heat sinks are used to fix the thin metal plate to prevent movement.
It effectively prevents thin metal sheets from deforming due to heat during welding, improves welding quality and precision, ensures that the thin metal sheets do not move during welding, and enhances welding results.
Smart Images

Figure CN224333792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding technology, specifically to a welding anti-deformation positioning fixture for thin metal plates. Background Technology
[0002] Thin metal sheets refer to relatively thin metal sheets, usually within a few centimeters to a few millimeters in thickness. Depending on their materials, they have different uses and characteristics.
[0003] When welding two or more thin metal plates together, a welding positioning fixture can be used to position them to prevent the metal plates from moving during the welding process. This welding positioning fixture, which is used to position thin metal plates and ensure their welding quality and accuracy, can be called a thin metal plate welding positioning fixture.
[0004] However, due to the relatively thin thickness of the thin metal sheet, it may deform during welding due to absorbing too much heat; therefore, it does not meet the existing requirements. In response, we propose a deformation-resistant positioning fixture for welding thin metal sheets. Utility Model Content
[0005] The purpose of this utility model is to provide a welding anti-deformation positioning fixture for thin metal plates, so as to solve the problems mentioned in the background art, such as the possibility that the thin metal plate itself may deform due to absorbing too much heat during welding operations.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a thin metal plate welding anti-deformation positioning fixture, including a placement platform, a metal base fixed to the lower end face of the placement platform, and a slide rail provided on both sides of the upper end face of the metal base;
[0007] Multiple pressure rods are provided at the front and rear of the placement platform. A metal rod is fixedly provided on both sides of the lower end face of each pressure rod. A spring is sleeved on the outer surface of the metal rod. A metal ring is fixedly sleeved on the outer surface of the metal rod at the lower end face of the spring. A slider is provided on the outer side of the metal ring and slidably installed on the inner wall of the slide rail. A cylindrical groove is provided inside the slider, and the metal ring, metal rod and spring are all located inside the cylindrical groove.
[0008] Multiple small heat sinks are installed on the lower end face of the pressure rod between the two metal rods fixed to the same lower end face of the pressure rod.
[0009] Preferably, the upper surface of the placement platform is provided with a plurality of strip grooves, and the spacing between the plurality of strip grooves is the same.
[0010] Preferably, a thin metal plate is placed on both sides of the upper surface of the placement platform, the opposite surfaces of the two thin metal plates are in contact with each other, and the position where the two thin metal plates are in contact is above the strip groove.
[0011] Preferably, the outer surface of the metal ring is in contact with the inner wall of the cylindrical groove, and the metal ring and the cylindrical groove are slidably connected.
[0012] Preferably, a handle is fixedly provided on the upper end face of the pressure rod, and the pressure rod and the handle are fixed together by screws.
[0013] Preferably, the upper end face of the small radiator is fixed with an external threaded mounting head, and the outer side of the external threaded mounting head is provided with an internal threaded mounting groove located on the lower end face of the pressure rod.
[0014] Preferably, the gap between the two metal rods fixed to the lower end face of the same pressure rod is longer than the width of the placement platform, and the metal rods are fixed to the pressure rod by screws.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. This utility model involves moving a pressure rod above the thin metal plate before welding, and attaching a small heat sink installed on the lower end of the pressure rod to the upper end of the thin metal plate. The small heat sink can then cool other parts of the thin metal plate except for the welding position. This technical solution can prevent the thin metal plate from deforming due to absorbing too much heat during the welding process, thereby improving the quality of welding thin metal plates.
[0017] 2. This utility model uses multiple small heat sinks attached to the upper surface of the thin metal plate to fix the thin metal plate as a whole. By fixing the thin metal plate, it can prevent the thin metal plate from moving during the welding process. The above technical solution can fix the thin metal plate to be welded, thereby preventing the thin metal plate from moving during the welding process and ensuring the welding quality. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a top view of the entire utility model;
[0020] Figure 3 This is a side view of the entire utility model;
[0021] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.
[0022] In the diagram: 1. Placement platform; 2. Strip groove; 3. Thin metal plate; 4. Slide rail; 5. Down pressure rod; 6. Handle; 7. Small radiator; 8. Slider; 9. Cylindrical groove; 10. Metal ring; 11. Metal rod; 12. Spring; 13. Metal base; 14. Internal thread mounting groove; 15. External thread mounting head. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] The thin metal plate 3 (model 304), small radiator 7 (model BR50) and spring 12 (model JX110) mentioned in this utility model can be obtained from the market or through private customization.
[0025] Please see Figures 1 to 4 An embodiment of this utility model is provided: a thin metal plate welding anti-deformation positioning fixture, including a placement platform 1, a metal base 13 fixed on the lower end surface of the placement platform 1, and a slide rail 4 provided on both sides of the upper end surface of the metal base 13.
[0026] Multiple pressing rods 5 are provided at the front and rear of the placement platform 1. A metal rod 11 is fixedly provided on both sides of the lower end face of the pressing rod 5. A spring 12 is sleeved on the outer surface of the metal rod 11. A metal ring 10 is fixedly sleeved on the outer surface of the metal rod 11 and connected to the lower end face of the spring 12. A slider 8 is slidably installed on the inner wall of the slide rail 4 on the outer side of the metal ring 10. A cylindrical groove 9 is provided inside the slider 8, and the metal ring 10, metal rod 11 and spring 12 are all located inside the cylindrical groove 9.
[0027] Multiple small radiators 7 are installed on the lower end face of the pressure rod 5 between two metal rods 11 fixed to the same lower end face of the pressure rod 5.
[0028] The upper surface of the placement platform 1 is provided with multiple strip grooves 2, and the spacing between the multiple strip grooves 2 is the same; a thin metal plate 3 is placed on both sides of the upper surface of the placement platform 1, the opposite surfaces of the two thin metal plates 3 are in contact with each other, and the contact position of the two thin metal plates 3 is located above the strip grooves 2; the strip grooves 2 located on the upper surface of the placement platform 1 can prevent the thin metal plate 3 from being welded together with the placement platform 1 when welding operations are performed.
[0029] A handle 6 is fixedly provided on the upper end face of the lower pressure rod 5, and the lower pressure rod 5 and the handle 6 are fixed together by screws. Before welding, the lower pressure rod 5 is pulled upward by the handle 6 fixed to the upper end face of the lower pressure rod 5. As the lower pressure rod 5 rises, the metal rod 11 fixed to the lower end face of the lower pressure rod 5 and the metal ring 10 fixed to the outer surface of the metal rod 11 will move upward together. The upwardly moving metal ring 10 will compress the spring 12 connected to the upper end face of the metal ring 10. When fixed to the upper end face of the metal ring 10, the handle 6 is fixed to the lower pressure rod 5. After the small heat sink 7 on the lower end face of the pressure rod 5 is higher than the strip groove 2, the pressure rod 5 is moved to a position above the thin metal plate 3. After the pressure rod 5 is moved above the thin metal plate 3, the handle 6 is released. When the handle 6 is released, the metal rod 11 and the pressure rod 5 can be pushed down by the reaction force of the compressed spring 12 until the small heat sink 7 installed on the lower end face of the pressure rod 5 is in contact with the upper end face of the thin metal plate 3. Then the small heat sink 7 is activated to cool the entire thin metal plate 3.
[0030] When the small radiator 7 is activated, welding is performed on the thin metal plates 3 that are in contact with each other. The small radiator 7 can offset the heat absorbed by the thin metal plates 3 during the welding process. The above technical solution can prevent the thin metal plates 3 from deforming due to absorbing too much heat during the welding process, thereby improving the quality of welding the thin metal plates 3.
[0031] The thin metal plate 3 can be fixed as a whole by means of multiple small heat sinks 7 attached to the upper surface of the thin metal plate 3. By fixing the thin metal plate 3, it can be prevented from moving during the welding process. The above technical solution can fix the thin metal plate 3 to be welded, thereby preventing the thin metal plate 3 from moving during the welding process and ensuring the welding quality.
[0032] After the welding between the thin metal plates 3 is completed, pull the lower pressure rod 5 upward by the handle 6 and move it away from above the thin metal plate 3, and then the welded thin metal plate 3 can be removed.
[0033] The outer surface of the metal ring 10 is in contact with the inner wall of the cylindrical groove 9, and the metal ring 10 and the cylindrical groove 9 are slidably connected; the cylindrical groove 9 and the metal ring 10 can ensure the stability of the downward pressure rod 5 that moves up and down, and prevent it from tilting.
[0034] An external threaded mounting head 15 is fixed to the upper end face of the miniature radiator 7. An internal threaded mounting groove 14 is provided on the outer side of the external threaded mounting head 15 located on the lower end face of the pressure rod 5. When a miniature radiator 7 fails due to prolonged use or accident and can no longer be used, the miniature radiator 7 is rotated to remove the external threaded mounting head 15 fixed to the upper end face of the miniature radiator 7 from the inside of the internal threaded mounting groove 14. The miniature radiator 7 can then be removed. After that, a new miniature radiator 7 can be installed on the lower end face of the pressure rod 5 through the internal threaded mounting groove 14 and the external threaded mounting head 15. The miniature radiator 7 can be replaced through the above technical solution, thereby increasing the functionality of the equipment.
[0035] The gap between the two metal rods 11 fixed to the lower end face of the same pressure rod 5 is longer than the width of the placement platform 1, and the metal rods 11 and the pressure rod 5 are fixed together by screws. This structure can prevent the pressure rod 5, which moves upward toward the thin metal plate 3, from being pulled upward by the metal rods 11 and hitting the placement platform 1. When the small heat sink 7 malfunctions and needs to be replaced, the entire pressure rod 5 can be removed by removing the screws that fix the pressure rod 5 and the metal rods 11, so that the staff can replace the small heat sink 7.
[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A welding anti-deformation positioning fixture for thin metal plates, comprising a placement platform (1), characterized in that: The lower end face of the placement platform (1) is fixed with a metal base (13), and a slide rail (4) is provided on both sides of the upper end face of the metal base (13). Multiple pressing rods (5) are provided at the front and rear of the placement platform (1). A metal rod (11) is fixedly provided on both sides of the lower end face of the pressing rod (5). A spring (12) is sleeved on the outer surface of the metal rod (11). A metal ring (10) is fixedly sleeved on the outer surface of the metal rod (11) and a slider (8) is slidably installed on the inner wall of the slide rail (4) on the outer side of the metal ring (10). A cylindrical groove (9) is provided inside the slider (8), and the metal ring (10), metal rod (11) and spring (12) are all located inside the cylindrical groove (9). Multiple small radiators (7) are installed on the lower end face of the pressure rod (5) between the two metal rods (11) fixed to the same lower end face of the pressure rod (5).
2. The anti-deformation positioning fixture for welding thin metal plates according to claim 1, characterized in that: The upper surface of the placement platform (1) is provided with multiple strip grooves (2), and the spacing between the multiple strip grooves (2) is the same.
3. The anti-deformation positioning fixture for welding thin metal plates according to claim 2, characterized in that: A thin metal plate (3) is placed on both sides of the upper surface of the placement platform (1). The opposite surfaces of the two thin metal plates (3) are in contact with each other, and the position where the two thin metal plates (3) are in contact is above the strip groove (2).
4. The anti-deformation positioning fixture for welding thin metal plates according to claim 1, characterized in that: The outer surface of the metal ring (10) is in contact with the inner wall of the cylindrical groove (9), and the metal ring (10) and the cylindrical groove (9) are slidably connected.
5. The anti-deformation positioning fixture for welding thin metal plates according to claim 1, characterized in that: The upper end face of the pressure rod (5) is fixedly provided with a handle (6), and the pressure rod (5) and the handle (6) are fixed together by screws.
6. The anti-deformation positioning fixture for welding thin metal plates according to claim 1, characterized in that: The upper end face of the small radiator (7) is fixed with an external threaded mounting head (15), and the outer side of the external threaded mounting head (15) is provided with an internal threaded mounting groove (14) located on the lower end face of the pressure rod (5).
7. The anti-deformation positioning fixture for welding thin metal plates according to claim 1, characterized in that: The gap between the two metal rods (11) fixed to the lower end face of the same pressure rod (5) is longer than the width of the placement platform (1), and the metal rods (11) and the pressure rod (5) are fixed together by screws.