Clamp mechanism applied to FSW

Abstract

The utility model discloses a clamp mechanism applied to FSW, which enables positioning of a radiator to be accurate, reliable, fast and efficient, and ensures that the size of a welded finished product is accurate and reliable. The friction stir welding positioning device is suitable for positioning of friction stir welding of radiator products, and is characterized by comprising a mold frame, the mold frame comprises mold frame supporting feet and a mold frame panel, the mold frame supporting feet are fixedly arranged at the bottom of the mold frame panel, and a plurality of connecting mounting holes are distributed in the mold frame panel; the profiling supporting block is manufactured according to the bottom shape of the radiator product and is used for positioning the radiator product; each oil cylinder pressing and attaching assembly comprises an oil cylinder and an oil cylinder pressing and attaching rod; each air cylinder pressing and attaching assembly comprises an air cylinder and an air cylinder pressing and attaching rod. The output end of the electromagnetic valve control device is connected with each air cylinder through a pipeline; the output end of the electric control box is connected with each oil cylinder through a pipeline; and a profiling support block mounting frame body.

Description

Technical Field

[0001] This utility model relates to the technical field of radiator welding fixtures, specifically a fixture mechanism applied to FSW. Background Technology

[0002] Friction stir welding (FSW) is a new solid-state joining technology based on the basic principle of friction welding. Because friction stir welding does not require filler materials and shielding gas, and has low energy consumption and no environmental pollution, it is a highly efficient joining technology. This welding technology is used in the manufacture of lightweight structures such as aerospace vehicles, high-speed ships and boats, high-speed rail trains, automobiles, and various aluminum alloy profile welded structures.

[0003] When friction stir welding is applied to heat spreaders or the entire radiator structure, existing fixtures generally rely on manual handling and clamping for positioning. During manual clamping, the direction of the force cannot be perpendicular to the product surface, inevitably causing planar displacement between the products to be welded. This leads to slight misalignment between the welded products, which can result in displacement deviations after welding, potentially rendering the products unusable. Therefore, there is an urgent need to develop an automatic positioning fixture suitable for friction stir welding of radiators, ensuring that there are no displacement deviations between products caused by manual positioning. Utility Model Content

[0004] To address the aforementioned issues, this invention provides a clamping mechanism for FSW (Freestanding Swing), which ensures accurate and reliable positioning of the heat sink, as well as quick and efficient positioning, thereby guaranteeing accurate and reliable dimensions of the finished product after welding.

[0005] A clamping mechanism for use in friction stir welding (FSW), suitable for positioning radiator products, characterized in that it comprises:

[0006] A mold frame includes mold frame support feet and a mold frame panel. The bottom of the mold frame panel is fixed with the mold frame support feet, and a plurality of connection and mounting holes are arranged on the mold frame panel.

[0007] The contour support block is made according to the bottom shape of the radiator product and is used to position the radiator product.

[0008] Several sets of hydraulic cylinder pressing components, each set of hydraulic cylinder pressing components includes a hydraulic cylinder and a hydraulic cylinder pressing rod;

[0009] Several sets of cylinder pressing components, each set of cylinder pressing components includes a cylinder and a cylinder pressing rod;

[0010] The solenoid valve controller has its output connected to each cylinder via a pipeline.

[0011] An electrical control box, the output of which is connected to each of the hydraulic cylinders via pipelines;

[0012] And a contour support block mounting frame, which includes a support panel, two side support blocks, and four connecting and fixing plates. The bottom two sides of the support panel are respectively fixed with side support blocks. The center of each side of the overall structure formed by the combination of the support panel and the side support blocks is respectively provided with a connecting and fixing plate for alignment.

[0013] The bottom of the contour support block is fixed to the center area of ​​the upper surface of the support panel. The bottom of the connecting fixing plate is fixed to the corresponding connecting mounting holes of the mold frame panel by fasteners. The bottom of the cylinder is directly or indirectly fixed to the corresponding connecting mounting holes of the mold frame panel. The bottom of the hydraulic cylinder is directly or indirectly fixed to the corresponding connecting mounting holes of the mold frame panel. The cylinder pressing rod is located in the center area of ​​the four sides of the contour support block. The hydraulic cylinder pressing rod is located in the four corner areas of the contour support block.

[0014] In the unpositioned state, both the pneumatic cylinder pressing rod and the hydraulic cylinder pressing rod are located on the outer periphery of the upper area of ​​the corresponding radiator product;

[0015] In the positioning state, the pressing ends of the cylinder pressing rod and the hydraulic cylinder pressing rod are pressed onto the corresponding positions on the upper surface of the radiator product.

[0016] Its further features are:

[0017] The solenoid valve controller and the electrical control box are located in the peripheral area of ​​the mold frame;

[0018] A first pivot connection seat is fixedly provided at one end of the upper part of the mounting base of the hydraulic cylinder near the contour support block. The bottom of the first pivot rod is pivotally connected to the first pivot connection seat, and the upper part of the first pivot rod is pivotally connected to the middle part of the length of the hydraulic cylinder pressing rod. The output end of the hydraulic cylinder piston is pivotally connected to the non-pressing end of the hydraulic cylinder pressing rod. The pressing end of the hydraulic cylinder pressing rod is oriented towards or away from the upper surface of the radiator product.

[0019] A second pivot connection seat is fixedly provided at one end of the upper part of the cylinder mounting base near the contour support block. The bottom of the second pivot rod is pivotally connected to the second pivot connection seat, and the upper part of the second pivot rod is pivotally connected to the middle section of the length of the cylinder pressing rod. The cylinder piston output end of the cylinder is pivotally connected to the non-pressing end of the cylinder pressing rod. The pressing end of the cylinder pressing rod is oriented toward or away from the upper surface of the radiator product.

[0020] The shape of the hydraulic cylinder pressing rod includes a straight pressing rod and a Z-shaped pressing rod;

[0021] When a pad is provided at the bottom of the mounting base of the hydraulic cylinder, the shape of the hydraulic cylinder pressing rod is a straight pressing rod;

[0022] When the bottom of the hydraulic cylinder is directly fixed to the corresponding connection mounting hole of the mold frame panel, the shape of the hydraulic cylinder pressing rod is a Z-shaped pressing rod. The Z-shaped pressing rod includes a low horizontal section, a vertical section, and a high horizontal section. The low horizontal section is arranged away from the contour support block. The upper part of the first pivot rod is pivotally connected to the bottom position of the vertical section. The hydraulic cylinder piston output end is pivotally connected to the end of the low horizontal section away from the contour support block. The pressing end of the high horizontal section is set to move towards or away from the upper surface of the radiator product.

[0023] The cylinder pressing rods are all Z-shaped pressing rods, and the bottom of the pressing end of the high section of the cylinder pressing rod is fixed with a pressing pad to ensure that the surface of the radiator product is not damaged.

[0024] The four corners of the mold frame panel are also fixed with upward-protruding lifting lugs, which facilitate the reliable transportation and operation of the entire equipment.

[0025] The bottom of the mold frame support foot is also provided with a semi-open U-shaped connection hole, which facilitates the reliable installation of the entire mold frame on the FSW machine.

[0026] It also includes a horizontal telescopic positioning mechanism, which includes a mounting frame, a telescopic cylinder, and an end-side positioning block. The bottom of the mounting frame is fixed to the mold frame panel, and the upper surface of the mounting frame is fixed with a telescopic cylinder. The output end of the telescopic cylinder is fixed with an end-side positioning plate. The end-side positioning plate ensures that the heat exchanger product is reliably positioned at the end, so that the heat exchanger product is quickly positioned on the contour support block.

[0027] By adopting the technology of this utility model, the radiator product to be processed is placed on the contour support block, and the four corners of the radiator product are positioned by hydraulic cylinders to press and fix it, so that no positional displacement occurs during the FSW processing. The hydraulic cylinders and air cylinders are installed in the corresponding connection mounting holes on the mold frame panel, and the positions of the air cylinders and hydraulic cylinders can be adjusted according to the size of the product (applicable to various products). The solenoid valve controller controls the on and off of each air cylinder, and the electrical control box controls each hydraulic cylinder. During processing, the button of the electrical control box is activated, and the hydraulic cylinders press the product first. The air cylinders press the product in sequence according to the time relay. The sequence of the air cylinders is determined by the friction welding path. After friction welding, the air cylinders and hydraulic cylinders are automatically disconnected, and the radiator product is taken out. This makes auxiliary production simple and convenient, shortens the working time, improves production efficiency and yield, and greatly enhances the competitiveness of the product in the market. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the present invention (product with heat sink).

[0029] Figure 2 This is a three-dimensional exploded view of the structure of this utility model (product with heat sink);

[0030] Figure 3 This is a perspective view of a specific embodiment of the hydraulic cylinder pressing assembly of this utility model;

[0031] Figure 4 This is a perspective view of a second specific embodiment of the hydraulic cylinder pressing assembly of this utility model;

[0032] Figure 5 This is a perspective view of the cylinder pressing assembly of this utility model;

[0033] Figure 6 This is a perspective view of the horizontal telescopic positioning mechanism of this utility model;

[0034] The names corresponding to the serial numbers in the diagram are as follows:

[0035] Mold frame 10, mold frame support foot 11, U-shaped connecting hole 111, mold frame panel 12, contour support block 20, hydraulic cylinder pressing assembly 30, hydraulic cylinder 31, hydraulic cylinder piston output end 311, straight rod pressing rod 32, Z-shaped pressing rod 33, low horizontal section 331, vertical section 332, high horizontal section 333, first pivot connecting seat 34, first pivot rod 35, pad block 36, cylinder pressing assembly 40, cylinder 41, cylinder piston output end 411. Cylinder pressing rod; 42. Second pivot connecting seat; 43. Second pivot rod; 44. Pressing pad; 45. Solenoid valve controller; 50. Electrical control box; 60. Contour support block mounting frame; 70. Support panel; 71. Concave positioning groove; 711. Side support blocks; 72. Connecting fixing plate; 73. Radiator product; 80. Lifting lug; 90. Horizontal telescopic positioning mechanism; 100. Mounting frame; 101. Telescopic cylinder; 102. End side positioning block; 103. Detailed Implementation

[0036] A clamping mechanism for FSW, suitable for positioning in friction stir welding of radiator products, see [link to documentation]. Figures 1-6 It includes a mold frame 10, a contour support block 20, several sets of hydraulic cylinder pressing components 30, several sets of pneumatic cylinder pressing components 40, a solenoid valve controller 50, an electrical control box 60, and a contour support block mounting frame 70. In specific implementation, the number of hydraulic cylinder pressing components 30 is four sets, and the number of pneumatic cylinder pressing components 40 is six sets.

[0037] The mold frame 10 includes mold frame support feet 11 and mold frame panel 12. The bottom of the mold frame panel 12 is fixed with the mold frame support feet 11, and a number of connection and mounting holes are arranged on the mold frame panel 12.

[0038] The contour support block 20 is made according to the bottom shape of the radiator product 80 and is used to position the radiator product 80.

[0039] Each set of hydraulic cylinder pressing assembly 30 includes a hydraulic cylinder 31 and a hydraulic cylinder pressing rod;

[0040] Each set of cylinder pressing assembly 40 includes a cylinder 41 and a cylinder pressing rod 42;

[0041] The output of the solenoid valve controller 50 is connected to each cylinder 41 via a pipeline;

[0042] The output of the electrical control box 60 is connected to each hydraulic cylinder 31 via a pipeline;

[0043] The contour support block mounting frame 70 includes a support panel 71, two side support blocks 72, and four connecting and fixing plates 73. The bottom two sides of the support panel 71 are respectively fixed with side support blocks 72. The center of each side of the overall structure formed by the combination of the support panel 71 and the side support blocks 72 is respectively provided with a connecting and fixing plate 73 for alignment. The center area of ​​the length of the four sides of the support panel 71 is respectively provided with a recessed positioning groove 711. The vertical end of the connecting and fixing plate 73 is pressed into the recessed positioning groove 711 to ensure that the entire structure is stable and reliable.

[0044] The bottom of the contour support block 20 is fixed to the center area of ​​the upper surface of the support panel 71. The bottom of the connecting fixing plate 73 is fixed to the corresponding connecting mounting holes of the mold frame panel 12 by fasteners. The bottom of the cylinder 41 is directly or indirectly fixed to the corresponding connecting mounting holes of the mold frame panel 12. The bottom of the oil cylinder 31 is directly or indirectly fixed to the corresponding connecting mounting holes of the mold frame panel 12. The cylinder pressing rod 42 is located in the center area of ​​the four sides of the contour support block 20. The oil cylinder pressing rod is located in the four corner areas of the contour support block 20.

[0045] In the unpositioned state, both the cylinder pressing rod 42 and the hydraulic cylinder pressing rod are located on the outer periphery of the upper area of ​​the corresponding radiator product 80;

[0046] In the positioning state, the pressing ends of the cylinder pressing rod 42 and the hydraulic cylinder pressing rod are both pressed onto the corresponding positions on the upper surface of the radiator product 80.

[0047] In practice:

[0048] The solenoid valve controller 50 and the electrical control box 60 are located in the outer area of ​​the mold frame 10.

[0049] In specific implementation, the shape of the hydraulic cylinder pressing rod includes a straight pressing rod 32 and a Z-shaped pressing rod 33. The upper part of the mounting base of the hydraulic cylinder 31 is fixed with a first pivot connection seat 34 near the contour support block. The bottom of the first pivot rod 35 is pivotally connected to the first pivot connection seat 34, and the upper part of the first pivot rod 35 is pivotally connected to the middle part of the length of the hydraulic cylinder pressing rod. The hydraulic cylinder piston output end 311 of the hydraulic cylinder 31 is pivotally connected to the non-pressing end of the hydraulic cylinder pressing rod. The pressing end of the hydraulic cylinder pressing rod is set to move towards or away from the upper surface of the radiator product 80.

[0050] In specific implementation, the two sets of hydraulic cylinder pressing rods close to the solenoid valve controller 50 and the electrical control box 60 are straight pressing rods 32, and the two sets of hydraulic cylinder pressing rods far away from the solenoid valve controller 50 and the electrical control box 60 are Z-shaped pressing rods 33.

[0051] A pad 36 is provided at the bottom of the mounting base of the hydraulic cylinder 31 corresponding to the straight rod pressing rod 33;

[0052] The mounting base of the cylinder 31 corresponding to the Z-type pressing rod 33 is directly fixed to the corresponding connection mounting hole of the mold frame panel 12. The Z-type pressing rod 33 includes a low horizontal section 331, a vertical section 332, and a high horizontal section 333. The low horizontal section 331 is arranged away from the contour support block 20. The upper part of the first pivot rod 35 is pivotally connected to the bottom position of the vertical section 332. The cylinder piston output end 311 of the cylinder 31 is pivotally connected to the end of the low horizontal section 331 away from the contour support block 20. The pressing end of the high horizontal section 333 is set to move towards or away from the upper surface of the radiator product 80.

[0053] In specific implementation, the cylinder pressing rod 42 is Z-shaped. The upper part of the mounting base of the cylinder 41 is fixed with a second pivot connecting seat 43 near the contour support block 20. The bottom of the second pivot rod 44 is pivotally connected to the second pivot connecting seat 43. The upper part of the second pivot rod 44 is pivotally connected to the middle part of the length of the cylinder pressing rod 42. The cylinder piston output end 411 of the cylinder 41 is pivotally connected to the non-pressing end of the cylinder pressing rod 42. The pressing end of the cylinder pressing rod 42 is set to move towards or away from the upper surface of the radiator product 80. A pressing pad 45 is fixedly installed at the bottom of the pressing end of the upper section of the cylinder pressing rod 42 to ensure that the surface of the radiator product 80 is not damaged.

[0054] In specific implementation, it also includes a horizontal telescopic positioning mechanism 100, which includes a mounting frame 101, a telescopic cylinder 102, and an end-side positioning block 103. The bottom of the mounting frame 101 is fixed to the mold frame panel 12, and the telescopic cylinder 102 is fixed to the upper surface of the mounting frame 101. The output end of the telescopic cylinder 102 is fixed to the end-side positioning plate 103. The end-side positioning plate 103 ensures that the heat exchanger product 80 can be reliably positioned at the end, so that the heat exchanger product 80 can be quickly positioned on the contour support block 20.

[0055] In practice, the four corners of the mold frame panel 12 are also fixed with upward-protruding lifting lugs 90, which facilitates the reliable transportation and operation of the entire equipment.

[0056] The bottom of the mold frame support foot 11 is also provided with a semi-open U-shaped connection hole 111, which facilitates the reliable installation of the entire mold frame 10 on the FSW machine.

[0057] Its working principle is as follows: The radiator product to be processed is placed on the contour support block, and the four corners of the radiator product are clamped and positioned by hydraulic cylinders to prevent positional displacement during FSW processing. Both hydraulic cylinders and air cylinders are installed in the corresponding connection mounting holes on the mold frame panel. The positions of the hydraulic cylinders and air cylinders can be adjusted according to the size of the product (suitable for various products). The solenoid valve controller controls the on / off of each air cylinder, and the electrical control box controls each hydraulic cylinder. During processing, the button on the electrical control box is activated, and the hydraulic cylinders clamp the product first. The air cylinders clamp the product in sequence according to the time relay. The sequence of the air cylinders is determined by the friction welding path. After friction welding, the air cylinders and hydraulic cylinders are automatically disconnected, and the radiator product is removed. This method simplifies and facilitates auxiliary production, shortens working time, improves production efficiency and yield, and greatly enhances the product's market competitiveness.

[0058] 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.

[0059] 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 clamping mechanism for use in FSW (Friction Stir Welding), suitable for positioning radiator products during friction stir welding, characterized in that, It includes: A mold frame includes mold frame support feet and a mold frame panel. The bottom of the mold frame panel is fixed with the mold frame support feet, and a plurality of connection and mounting holes are arranged on the mold frame panel. The contour support block is made according to the bottom shape of the radiator product and is used to position the radiator product. Several sets of hydraulic cylinder pressing components, each set of hydraulic cylinder pressing components includes a hydraulic cylinder and a hydraulic cylinder pressing rod; Several sets of cylinder pressing components, each set of cylinder pressing components includes a cylinder and a cylinder pressing rod; The solenoid valve controller has its output connected to each cylinder via a pipeline. An electrical control box, the output of which is connected to each of the hydraulic cylinders via pipelines; And a contour support block mounting frame, which includes a support panel, two side support blocks, and four connecting and fixing plates. The bottom two sides of the support panel are respectively fixed with side support blocks. The center of each side of the overall structure formed by the combination of the support panel and the side support blocks is respectively provided with a connecting and fixing plate for alignment. The bottom of the contour support block is fixed to the center area of ​​the upper surface of the support panel. The bottom of the connecting fixing plate is fixed to the corresponding connecting mounting holes of the mold frame panel by fasteners. The bottom of the cylinder is directly or indirectly fixed to the corresponding connecting mounting holes of the mold frame panel. The bottom of the hydraulic cylinder is directly or indirectly fixed to the corresponding connecting mounting holes of the mold frame panel. The cylinder pressing rod is located in the center area of ​​the four sides of the contour support block. The hydraulic cylinder pressing rod is located in the four corner areas of the contour support block. In the unpositioned state, both the pneumatic cylinder pressing rod and the hydraulic cylinder pressing rod are located on the outer periphery of the upper area of ​​the corresponding radiator product; In the positioning state, the pressing ends of the cylinder pressing rod and the hydraulic cylinder pressing rod are pressed onto the corresponding positions on the upper surface of the radiator product.

2. The clamping mechanism applied to FSW according to claim 1, characterized in that: The solenoid valve controller and the electrical control box are located in the outer area of ​​the mold frame.

3. The clamping mechanism applied to FSW according to claim 1, characterized in that: A first pivot connection seat is fixedly provided at one end of the upper part of the mounting base of the hydraulic cylinder near the contour support block. The bottom of the first pivot rod is pivotally connected to the first pivot connection seat, and the upper part of the first pivot rod is pivotally connected to the middle part of the length of the hydraulic cylinder pressing rod. The output end of the hydraulic cylinder piston is pivotally connected to the non-pressing end of the hydraulic cylinder pressing rod. The pressing end of the hydraulic cylinder pressing rod is oriented towards or away from the upper surface of the radiator product.

4. A clamping mechanism for FSW according to claim 1, characterized in that: A second pivot connection seat is fixedly provided at one end of the upper part of the cylinder mounting base near the contour support block. The bottom of the second pivot rod is pivotally connected to the second pivot connection seat, and the upper part of the second pivot rod is pivotally connected to the middle part of the length of the cylinder pressing rod. The cylinder piston output end of the cylinder is pivotally connected to the non-pressing end of the cylinder pressing rod. The pressing end of the cylinder pressing rod is oriented towards or away from the upper surface of the radiator product.

5. A clamping mechanism for FSW according to claim 3, characterized in that: The shape of the hydraulic cylinder pressing rod includes a straight pressing rod and a Z-shaped pressing rod.

6. A clamping mechanism for FSW according to claim 5, characterized in that: When a pad is provided at the bottom of the mounting base of the hydraulic cylinder, the shape of the hydraulic cylinder pressing rod is a straight pressing rod.

7. A clamping mechanism for FSW according to claim 5, characterized in that: When the bottom of the hydraulic cylinder is directly fixed to the corresponding connection mounting hole of the mold frame panel, the shape of the hydraulic cylinder pressing rod is a Z-shaped pressing rod. The Z-shaped pressing rod includes a low horizontal section, a vertical section, and a high horizontal section. The low horizontal section is arranged away from the contour support block. The upper part of the first pivot rod is pivotally connected to the bottom position of the vertical section. The hydraulic cylinder piston output end is pivotally connected to the end of the low horizontal section away from the contour support block. The pressing end of the high horizontal section is set to move towards or away from the upper surface of the radiator product.

8. A clamping mechanism for FSW according to claim 1, characterized in that: The cylinder pressing rods are all Z-shaped pressing rods, and a pressing pad is fixedly installed at the bottom of the pressing end of the high section of the cylinder pressing rod.

9. A clamping mechanism applied to FSW according to claim 1, characterized in that: The bottom of the mold frame support foot is also provided with a semi-open U-shaped connection hole.

10. A clamping mechanism applied to FSW according to claim 1, characterized in that: It also includes a horizontal telescopic positioning mechanism, which includes a mounting frame, a telescopic cylinder, and an end-side positioning block. The bottom of the mounting frame is fixed to the mold frame panel, and the upper surface of the mounting frame is fixed with a telescopic cylinder. The output end of the telescopic cylinder is fixed with an end-side positioning plate, and the end-side positioning plate ensures that the heat exchanger product is reliably positioned at the end.

Images