Clamping device for laser welding of refrigerator bottom steel
By designing a clamping device with a multi-point fixing structure, the problem of unstable welding quality caused by the small number of clamping points in the welding of refrigerator bottom steel was solved, and the stability and cost-effectiveness of the welding process were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHEN ZHEN DENGFENG TECH CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-07-21
Smart Images
Figure CN224526226U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding clamping equipment technology, specifically to a clamping device for laser welding of refrigerator bottom steel. Background Technology
[0002] Refrigerators are common household appliances. During the manufacturing process, the steel plates that make up the bottom shell of a refrigerator need to be welded. Laser welding has low heat input, minimal welding deformation, high weld quality, and few defects, making it particularly suitable for welding materials sensitive to heat input and for precision structures.
[0003] When using laser welding to weld the bottom steel of a refrigerator, the bottom steel needs to be fixed in place before a welding robot can complete the automatic welding process. However, existing fixing or clamping devices have limited fixing points, which causes vibration during welding, affecting the quality of the weld. Utility Model Content
[0004] This invention proposes a clamping device for laser welding of refrigerator bottom steel, which solves the problem of unstable welding quality caused by the limited number of clamping points in the existing automated welding of refrigerator bottom steel.
[0005] The technical solution of this utility model is as follows: A clamping device for laser welding of refrigerator bottom steel, comprising: Chassis; A support platform is mounted on the chassis. A first clamp is disposed on the chassis and arranged on a first side and a second side of the support platform, the first side and the second side being symmetrical sides, and the first clamp has a first clamping end that moves relative to the support platform; The clamping frame consists of two sets, both of which are slidably mounted on the chassis. The two sets of clamping frames are simultaneously close to or far from each other, and the clamping frames are located on the third side of the support platform. The positioning blocks are multiple and are all disposed on the clamping frame and used to position the workpiece to be welded; The second clamp is disposed on the clamping frame and has a second clamping end that moves relative to the clamping frame; The first clamping end cooperates with the bearing platform to clamp the workpiece to be welded, while the second clamping end cooperates with part of the positioning block to clamp the workpiece to be welded.
[0006] As a further technical solution, it also includes: A guide rail is mounted on the chassis, and the length direction of the guide rail is along the moving direction of the clamping frame; A slider is located at the bottom of the clamping frame and is slidably mounted on the guide rail.
[0007] As a further technical solution, a traction member is also included for providing power to the movement of the clamping frame, the traction member comprising: A traction base is connected to the chassis; The towing handle is rotatably connected at one end to the towing base; The traction rod is slidably mounted on the traction base, with one end hinged to the middle of the traction handle and the other end hinged to the clamping frame.
[0008] As a further technical solution, both the clamping frame and the traction member are provided in pairs and are arranged in a one-to-one correspondence.
[0009] As a further technical solution, the two traction members are located between the two clamping frames.
[0010] As a further technical solution, the clamping frame is also provided with an anti-detachment block, and the anti-detachment block is provided with an anti-detachment protrusion, which contacts the second clamp after it has rotated in the opposite direction.
[0011] As a further technical solution, a pressure plate is also included, which is disposed on the first clamping end and has a flexible portion for contacting the workpiece to be welded.
[0012] As a further technical solution, an auxiliary platform is also included. The auxiliary platform is disposed on the chassis and located between the support platform and the first clamp. The pressure plate presses the workpiece to be welded onto the auxiliary platform at the driving end of the first clamping end.
[0013] As a further technical solution, a side positioning component is also included, which is disposed on the pressure plate and cooperates with part of the positioning block to clamp the workpiece to be welded.
[0014] As a further technical solution, the chassis includes multiple and evenly arranged handling handles.
[0015] The working principle and beneficial effects of this utility model are as follows: The clamping device for laser welding of refrigerator bottom steel includes a chassis, a support platform, a first clamp, a clamping frame, a positioning block, and a second clamp. The system comprises a support platform mounted on a chassis with four sides. A first clamp is mounted on the chassis and located on the first and second sides of the support platform, forming a symmetrical structure. The first clamp has a first gripping end that is movable relative to the support platform. This movable gripping end presses the workpiece to be welded onto the support platform, thus securing it. Two sets of clamping frames are slidably mounted on the chassis. These frames move simultaneously away from or towards each other. When they approach each other, they clamp the workpiece. Both sets of clamping frames are located on the third side of the support platform. Multiple positioning blocks are mounted on the clamping frames and are primarily used for positioning the workpiece. A second clamp is mounted on the clamping frames and has a second gripping end that is movable relative to the clamping frames. This second gripping end, in conjunction with some of the positioning blocks, clamps the workpiece.
[0016] When the workpiece is placed on the chassis, the support platform provides support. The first clamping end of the first fixture, after movement, presses against the surface of the workpiece, thus clamping it in conjunction with the support platform. When the two sets of clamping frames are brought closer together, the positioning blocks on the clamping frames further clamp the workpiece. Furthermore, since the clamping frames are located on the third side of the support platform, they, along with the first fixture, can clamp the workpiece in three directions, improving its stability during welding. Finally, a second fixture is also provided on the clamping frames, which, in conjunction with the positioning blocks, clamps the workpiece, further enhancing the stability between the workpiece and the clamping frames. Attached Figure Description
[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0018] Figure 1 A schematic diagram of the overall structure of the clamping device for laser welding of refrigerator bottom steel provided by this utility model; Figure 2 for Figure 1 A structural diagram from another angle; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram of the structure at the mating point of the first clamp, pressure plate, and side positioning component in this utility model; Figure 5 This is a schematic diagram of the structure at the joint between the clamping frame and the traction component in this utility model; Figure 6This is a schematic diagram of the structure at the joint between the clamping frame and the second clamp in this utility model.
[0019] In the diagram: 1. Chassis; 2. Support platform; 3. First clamp; 4. Clamping frame; 5. Positioning block; 6. Second clamp; 7. Guide rail; 8. Slider; 9. Traction base; 10. Traction handle; 11. Traction rod; 12. Anti-detachment block; 13. Pressure plate; 14. Auxiliary platform; 15. Side positioning component; 16. Handling handle. Detailed Implementation
[0020] 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 scope of protection of this utility model.
[0021] like Figures 1-6 As shown, this embodiment proposes a clamping device for laser welding of refrigerator bottom steel, comprising: Chassis 1; Support platform 2 is mounted on the chassis; The first clamp 3 is mounted on the chassis 1 and arranged on the first and second sides of the support platform 2. The first and second sides are symmetrical. The first clamp 3 has a first clamping end that moves relative to the support platform 2. The clamping frame 4 consists of two sets, both of which are slidably mounted on the chassis 1. The two sets of clamping frames 4 are simultaneously close to or far from each other, and the clamping frame 4 is located on the third side of the support platform 2. Positioning blocks 5, multiple of which are all set on the clamping frame 4 and used to position the workpiece to be welded; The second clamp 6 is disposed on the clamping frame 4 and has a second clamping end that moves relative to the clamping frame 4; The first clamping end works with the support platform to clamp the workpiece to be welded, while the second clamping end works with part of the positioning block 5 to clamp the workpiece to be welded.
[0022] In this embodiment, the clamping device for laser welding of the refrigerator bottom steel includes a chassis 1, a support platform 2, a first clamp 3, a clamping frame 4, a positioning block 5, and a second clamp 6. The support platform 2 is mounted on the chassis 1 and has four sides. The first clamp 3 is mounted on the chassis 1 and is located on the first and second sides of the support platform 2, respectively. The first and second sides are symmetrical. The first clamp 3 has a first clamping end, which can move relative to the support platform 2. After moving, the first clamping end can press the workpiece to be welded onto the support platform 2, thereby fixing the workpiece to be welded. The clamping frame 4 is divided into two groups, and both groups of clamping frames 4 are slidably mounted on the chassis 1. The two groups of clamping frames 4 can move away from each other or move closer to each other at the same time. When the two groups of clamping frames 4 move closer to each other, the workpiece to be welded is clamped. Both groups of clamping frames 4 are located on the third side of the support platform. There are multiple positioning blocks 5 mounted on the clamping frames 4. The positioning blocks 5 are mainly used for abutting and positioning the workpiece to be welded. The second clamp 6 is mounted on the clamping frame 4 and has a second clamping end. The second clamping end can move relative to the clamping frame 4. The second clamping end, together with part of the positioning block 5, can clamp the workpiece to be welded.
[0023] When the workpiece to be welded is placed on the chassis 1, the support platform 2 provides support. The first clamping end of the first clamp 3 can press against the surface of the workpiece after movement, thus clamping the workpiece in conjunction with the support platform 2. After the two sets of clamping frames 4 approach each other, the positioning blocks 5 on the clamping frames 4 can clamp the workpiece. In addition, since the clamping frames 4 are located on the third side of the support platform 2, the clamping frames 4, together with the first clamp 3, can clamp the workpiece in three directions, improving the stability of the workpiece during the welding process. Finally, a second clamp 6 is also provided on the clamping frame 4, which, together with the positioning blocks 5, clamps the workpiece, further improving the stability between the workpiece and the clamping frame 4.
[0024] It should be noted that, in order to reduce the overall manufacturing cost of the device, both the first clamp 3 and the second clamp 6 are selected as quick clamps, so that they can be purchased directly from the market without further production.
[0025] Furthermore, such as Figures 5-6 As shown, this embodiment also includes: The guide rail 7 is mounted on the chassis 1, and its length is along the moving direction of the clamping frame 4. The slider 8 is located at the bottom of the clamping frame 4 and is slidably mounted on the guide rail 7.
[0026] In this embodiment, in order to improve the stability of the clamping frame 4 during movement, the clamping device for laser welding of the bottom steel of the refrigerator also includes a guide rail 7 and a slider 8. The guide rail 7 is set on the chassis 1, and the slider 8 is slidably set on the guide rail 7. The bottom of the clamping frame 4 is connected to the slider 8. The clamping frame 4 can slide relative to the chassis 1 with the help of the guide rail 7 and the slider 8, which can improve stability during operation.
[0027] Furthermore, such as Figure 5 As shown, this embodiment also includes a traction member for providing power to the movement of the clamping frame 4. The traction member includes: The traction base 9 is connected to the chassis 1; The traction handle 10 is rotatably connected to the traction base 9 at one end; The traction rod 11 is slidably mounted on the traction base 9, with one end hinged to the middle of the traction handle 10 and the other end hinged to the clamping frame 4.
[0028] In this embodiment, to reduce the overall structural complexity of the clamping device used for laser welding of the refrigerator bottom steel, while also providing power for the movement of the clamping frame 4, a traction component is provided between the chassis 1 and the clamping frame 4. The traction component includes a traction base 9, a traction handle 10, and a traction rod 11. The traction base 9 is mounted on the chassis 1. One end of the traction handle 10 is rotatably connected to the traction base 9, and the other end can be grasped by the operator for rotation. The traction rod 11 is slidably mounted on the traction base 9, with one end hinged to the middle of the traction handle 10 and the other end hinged to the clamping frame 4. When the operator provides movement power to the traction rod 11 through the traction handle 10, the power is transmitted to the clamping frame 4, thereby enabling the movement of the clamping frame 4.
[0029] Furthermore, such as Figure 5 As shown, this embodiment proposes that there are two clamping frames 4 and two traction components, which are arranged in a one-to-one correspondence.
[0030] In this embodiment, to further reduce the complexity of the overall structure, two clamping frames 4 and two traction components are selected, and the clamping frames 4 and the traction components are arranged symmetrically. To further reduce the overall space occupied by the device, the two traction components are placed between the two clamping frames 4.
[0031] Furthermore, such as Figures 5-6 As shown, this embodiment proposes that the clamping frame 4 is also provided with an anti-detachment block 12, and the anti-detachment block 12 is provided with an anti-detachment protrusion. The anti-detachment protrusion contacts the second clamp 6 after it has rotated in the opposite direction.
[0032] In this embodiment, since the second clamp 6 is a quick clamp structure, in order to avoid the clamp from completely flipping over and causing operational inconvenience, an anti-detachment block 12 is also provided on the clamping frame 4. The anti-detachment block 12 is provided with anti-detachment protrusions, which can prevent the clamp from over-flipping.
[0033] Furthermore, such as Figure 4 As shown, this embodiment also includes a pressure plate 13, which is disposed on the first clamping end and has a flexible portion for contacting the workpiece to be welded.
[0034] In this embodiment, in order to reduce the pressure applied to the workpiece by the first clamping end, a pressure plate 13 is installed on the first clamping end. In this way, the force applied to the workpiece by the first clamping end can be distributed over a larger area, thereby reducing the pressure on the workpiece and preventing deformation of the workpiece due to excessive clamping force.
[0035] Furthermore, such as Figures 1-2 As shown, this embodiment also includes an auxiliary platform 14, which is set on the chassis 1 and located between the support platform 2 and the first clamp 3. The pressure plate 13 presses the workpiece to be welded onto the auxiliary platform 14 at the driving end of the first clamping end.
[0036] In this embodiment, in order to better clamp the workpiece to be welded, the clamping device for laser welding of refrigerator bottom steel also includes an auxiliary platform 14. The auxiliary platform 14 is disposed between the first clamp 3 and the bearing platform 2. Due to the special nature of the workpiece to be welded, the auxiliary platform 14 can be provided. This can avoid the first clamp 3 from needing to use an excessively long arm-shaped fixing member during the fixing process, thereby improving the stability of the first clamp 3 in the working state.
[0037] Furthermore, such as Figures 1-3 As shown, this embodiment also includes a side positioning member 15, which is disposed on the pressure plate 13 and cooperates with a portion of the positioning block 5 to clamp the workpiece to be welded.
[0038] In this embodiment, in order to further improve the stability of the workpiece when it is clamped, the clamping device for laser welding of refrigerator bottom steel also includes a side positioning member 15. The side positioning member 15 is set on the pressure plate 13, and can cooperate with the positioning block 5 on the clamping frame 4 to squeeze the workpiece when it moves with the pressure plate 13. Since there are two side positioning members 15 and they are arranged symmetrically, the workpiece can be clamped from both sides.
[0039] Furthermore, such as Figures 1-2 As shown, this embodiment proposes that the chassis 1 includes a transport handle 16, and the transport handle 16 is multiple and evenly arranged.
[0040] In this embodiment, in order to facilitate the overall movement of the device, a number of handling handles 16 are provided on the chassis 1 and are evenly distributed on the chassis 1.
[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A clamping device for laser welding of refrigerator bottom steel, characterized in that, include: Chassis (1); The support platform (2) is mounted on the chassis; A first clamp (3) is disposed on the chassis (1) and arranged on the first and second sides of the support platform (2), the first side and the second side being symmetrical sides, and the first clamp (3) having a first clamping end that moves relative to the support platform (2); The clamping frame (4) consists of two sets, both of which are slidably mounted on the chassis (1). The two sets of clamping frames (4) are simultaneously close to or far from each other, and the clamping frame (4) is located on the third side of the support platform (2). Positioning blocks (5) are multiple and are all set on the clamping frame (4) and used to position the workpiece to be welded; The second clamp (6) is disposed on the clamping frame (4) and has a second clamping end that moves relative to the clamping frame (4); The first clamping end cooperates with the bearing platform to clamp the workpiece to be welded, while the second clamping end cooperates with part of the positioning block (5) to clamp the workpiece to be welded.
2. The clamping device for laser welding of refrigerator bottom steel according to claim 1, characterized in that, Also includes: A guide rail (7) is provided on the chassis (1), and the length direction of the guide rail (7) is along the moving direction of the clamping frame (4); The slider (8) is located at the bottom of the clamp (4) and is slidably mounted on the guide rail (7).
3. The clamping device for laser welding of refrigerator bottom steel according to claim 2, characterized in that, It also includes a traction member for powering the movement of the clamp (4), the traction member comprising: A traction base (9) is connected to the chassis (1); The traction handle (10) is rotatably connected at one end to the traction base (9); The traction rod (11) is slidably mounted on the traction base (9) with one end hinged to the middle of the traction handle (10) and the other end hinged to the clamping frame (4).
4. The clamping device for laser welding of refrigerator bottom steel according to claim 3, characterized in that, The clamping frame (4) and the traction member are both in pairs and are set in a one-to-one correspondence.
5. The clamping device for laser welding of refrigerator bottom steel according to claim 4, characterized in that, The two traction members are located between the two clamps (4).
6. The clamping device for laser welding of refrigerator bottom steel according to any one of claims 1-5, characterized in that, The clamping frame (4) is also provided with an anti-detachment block (12), and the anti-detachment block (12) is provided with an anti-detachment protrusion, which contacts the second clamp (6) after it has rotated in the opposite direction.
7. The clamping device for laser welding of refrigerator bottom steel according to any one of claims 1-5, characterized in that, It also includes a pressure plate (13), which is disposed on the first clamping end and has a flexible portion for contacting the workpiece to be welded.
8. The clamping device for laser welding of refrigerator bottom steel according to claim 7, characterized in that, It also includes an auxiliary platform (14), which is disposed on the chassis (1). The auxiliary platform (14) is located between the support platform (2) and the first clamp (3). The pressure plate (13) presses the workpiece to be welded onto the auxiliary platform (14) at the driving end of the first clamping end.
9. The clamping device for laser welding of refrigerator bottom steel according to claim 8, characterized in that, It also includes a side positioning element (15), which is disposed on the pressure plate (13) and cooperates with part of the positioning block (5) to clamp the workpiece to be welded.
10. The clamping device for laser welding of refrigerator bottom steel according to any one of claims 1-5, characterized in that, The chassis (1) includes multiple and evenly arranged handling handles (16).