Clamp mechanism applied to FSW

Abstract

The invention discloses a clamp mechanism applied to FSW, which enables a radiator to be positioned accurately, reliably, quickly and efficiently, 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] The invention relates to the technical field of radiator welding fixtures, in particular to a fixture mechanism applied to FSW. Background Art

[0002] Friction stir welding (FSW) is a new solid-phase joining technology based on the basic principle of friction welding. Friction stir welding does not require filling materials and protective gases, has low energy consumption, and is environmentally friendly. It is an efficient joining technology. This welding technology is used in the manufacture of lightweight structures such as aerospace vehicles, high-speed ships and speedboats, high-speed rail trains, and automobiles, as well as various aluminum alloy profile welding structures.

[0003] When friction stir welding is applied to the welding of temperature homogenizing plates or the entire radiator structure, the existing fixture mechanism is generally manually clamped and positioned after manual handling. During the manual clamping and positioning process, it is inevitable that the products to be welded will be displaced in the planar direction due to the inability of the direction of the manpower to be perpendicular to the product surface, which in turn causes a slight offset between the products welded to each other, which can easily lead to displacement deviations in the welded products and the possibility of product scrapping. For this reason, it is urgently necessary to develop an automatic positioning fixture suitable for friction stir welding of radiators to ensure that there will be no technical problem of displacement deviations between products due to manual positioning. Summary of the invention

[0004] In view of the above problems, the present invention provides a clamp mechanism applied to FSW, which enables accurate and reliable positioning of the heat sink, and the positioning is quick and efficient, ensuring that the size of the finished product after welding is accurate and reliable.

[0005] A fixture mechanism for FSW, which is suitable for positioning of stir friction welding of radiator products, is characterized in that it includes:

[0006] The mold frame comprises a mold frame support foot and a mold frame panel, wherein the mold frame support foot is fixedly arranged at the bottom of the mold frame panel, and a plurality of connection and mounting holes are arranged on the mold frame panel;

[0007] A contoured support block, which is made according to the bottom shape of the radiator product and is used to position the radiator product;

[0008] A plurality of groups of oil cylinder pressing assemblies, each group of oil cylinder pressing assemblies comprises an oil cylinder and an oil cylinder pressing rod;

[0009] A plurality of groups of cylinder pressing assemblies, each group of cylinder pressing assemblies comprising a cylinder and a cylinder pressing rod;

[0010] A solenoid valve control device, the output end of which is connected to each cylinder through a pipeline;

[0011] An electric control box, the output end of which is connected to each of the oil cylinders through a pipeline;

[0012] and a contoured support block mounting frame, which includes a support panel, support blocks on both sides, and connecting and fixing plates around the support panel, the two sides of the bottom of the support panel are respectively fixed with side support blocks, and 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 profiling support block is fixed to the central area of ​​the upper surface of the support panel, the bottom of the connecting and fixing plate is fixed to the corresponding connecting and mounting holes of the formwork panel through fasteners, the bottom of the cylinder is directly or indirectly fixed to the corresponding connecting and mounting holes of the formwork panel, the bottom of the oil cylinder is directly or indirectly fixed to the corresponding connecting and mounting holes of the formwork panel, the cylinder pressure rod is located in the central area of ​​the four sides of the profiling support plate, and the oil cylinder pressure rod is located in the four corners of the profiling support plate;

[0014] In the unpositioned state, the air cylinder pressing rod and the oil cylinder pressing rod are both arranged at the outer periphery of the upper area of ​​the corresponding radiator product;

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

[0016] It is further characterized by:

[0017] The solenoid valve control device and the electric control box are arranged in the peripheral area of ​​the mold frame;

[0018] A first pivot connection seat is fixedly arranged at one end of the upper part of the mounting seat body of the oil cylinder close to the contoured support block, the bottom of the first pivot rod is pivotally connected to the first pivot connection seat, the upper part of the first pivot rod is pivotally connected to the middle length region of the oil cylinder pressing rod, the oil cylinder piston output end of the oil cylinder is pivotally connected to the non-pressing end of the oil cylinder pressing rod, and the pressing end of the oil cylinder pressing rod is arranged to move toward or away from the upper surface of the radiator product;

[0019] A second pivotal connection seat is fixedly arranged at one end of the upper portion of the mounting seat body of the cylinder close to the contoured support block, the bottom of the second pivotal rod is pivotally connected to the second pivotal connection seat, the upper portion of the second pivotal rod is pivotally connected to the middle length region 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, and the pressing end of the cylinder pressing rod is arranged to move toward or away from the upper surface of the radiator product;

[0020] The shapes of the oil cylinder pressure attachment rod include a straight rod pressure attachment rod and a Z-shaped pressure attachment rod;

[0021] When a cushion block is provided at the bottom of the mounting seat of the oil cylinder, the shape of the oil cylinder pressure attachment rod is a straight rod pressure attachment rod;

[0022] When the bottom of the oil cylinder is directly fixed to the corresponding connection and mounting hole of the mold frame panel, the shape of the oil cylinder pressure-attachment rod is a Z-shaped pressure-attachment rod, and the Z-shaped pressure-attachment 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 oil cylinder piston output end of the oil cylinder is pivotally connected to one end of the low horizontal section away from the contour support block, and the pressure-attachment end of the high horizontal section is arranged to move toward or away from the upper surface of the radiator product;

[0023] The shape of the cylinder pressing rods is a Z-shaped pressing rod, and a pressing pad is fixed at the bottom of the pressing end of the high section of the cylinder pressing rod to ensure that the surface of the radiator product will not be damaged;

[0024] The four corners of the mold frame panel are also fixed with upward convex lifting ears, which facilitates the reliable transportation 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 entire mold frame to be reliably installed 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 fixedly mounted on the mold frame panel, and the upper surface of the mounting frame is fixedly provided with a telescopic cylinder. The output end of the telescopic cylinder is fixedly provided with an end side positioning plate. The end side positioning plate ensures that the end of the heat exchanger product can be reliably positioned, so that the heat exchanger product can be quickly positioned on the contoured support block.

[0027] After adopting the technology of the present invention, the radiator product to be processed is placed on the contoured support block, and the four corners of the radiator product are positioned by pressing the oil cylinder, so that no position offset occurs during the FSW processing. The oil cylinder and the air cylinder are both installed in the corresponding connecting and mounting holes of the mold frame panel. The positions of the air cylinder and the oil cylinder can be adjusted according to the size of the product (applicable to various products). The solenoid valve control device simultaneously controls the on and off of each cylinder, and the electric control box controls each oil cylinder. During processing, the button of the electric control box is started, and the oil cylinder presses the product first, and then the cylinders are controlled by the time relay to press the product in sequence. The order of the cylinders is determined by the path of friction welding. After friction welding, the air cylinder and the oil cylinder are automatically disconnected, and the radiator product is taken out, which satisfies the requirements of simple and convenient auxiliary production, while shortening working hours, improving production efficiency and yield, and greatly improving the competitiveness of the product market. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the present invention (with a radiator product);

[0029] Figure 2It is a schematic diagram of the structure of the three-dimensional exploded view of the present invention (with a radiator product);

[0030] Figure 3 It is a three-dimensional diagram of a specific embodiment 1 of the oil cylinder press-attachment assembly of the present invention;

[0031] Figure 4 It is a three-dimensional diagram of a specific embodiment 2 of the oil cylinder press-attachment assembly of the present invention;

[0032] Figure 5 A three-dimensional diagram of a cylinder press-attachment assembly of the present invention;

[0033] Figure 6 It is a three-dimensional diagram of the horizontal telescopic positioning mechanism of the present invention;

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

[0035] Formwork 10, formwork support foot 11, U-shaped connection hole 111, formwork panel 12, contour support block 20, cylinder pressure attachment assembly 30, cylinder 31, cylinder piston output end 311, straight rod pressure attachment rod 32, Z-shaped pressure attachment rod 33, low level section 331, vertical section 332, high level section 333, first pivot connection seat 34, first pivot rod 35, cushion block 36, cylinder pressure attachment assembly 40, cylinder 41, cylinder piston output end 411, cylinder pressing rod 42, second pivot connection seat 43, second pivot rod 44, pressing pad 45, solenoid valve control device 50, electric control box 60, contoured support block mounting frame 70, support panel 71, concave positioning groove 711, two side support blocks 72, connecting fixing plate 73, radiator product 80, lifting ear 90, horizontal telescopic positioning mechanism 100, mounting frame 101, telescopic cylinder 102, end side positioning block 103. DETAILED DESCRIPTION

[0036] A fixture mechanism for FSW, which is suitable for positioning of stir friction welding of radiator products, see Figure 1-Figure 6 : It includes a mold frame 10, a contour support block 20, a plurality of groups of oil cylinder pressing components 30, a plurality of groups of air cylinder pressing components 40, a solenoid valve control device 50, an electric control box 60, and a contour support block mounting frame 70. In a specific implementation, the number of the oil cylinder pressing components 30 is four groups, and the number of the air cylinder pressing components 40 is six groups;

[0037] The mold frame 10 includes a mold frame support foot 11 and a mold frame panel 12. The mold frame support foot 11 is fixedly arranged at the bottom of the mold frame panel 12, and a plurality of connection and mounting holes are arranged on the mold frame panel 12.

[0038] The contoured 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 oil cylinder pressing assembly 30 includes an oil cylinder 31 and an oil cylinder pressing rod;

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

[0041] The output end of the solenoid valve control device 50 is connected to each cylinder 41 through a pipeline;

[0042] The output end of the electric control box 60 is connected to each oil cylinder 31 through a pipeline;

[0043] The contoured support block mounting frame 70 includes a support panel 71, support blocks 72 on both sides, and connecting and fixing plates 73 on all sides. The side support blocks 72 are fixedly mounted on both sides of the bottom of the support panel 71. 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 length center areas of the four sides of the support panel 71 are respectively provided with concave positioning grooves 711. The vertical ends of the connecting and fixing plates 73 are press-fitted into the concave positioning grooves 711 to ensure that the entire structure is stable and reliable.

[0044] The bottom of the profiling support block 20 is fixed to the central area of ​​the upper surface of the support panel 71, the bottom of the connecting and fixing plate 73 is fixed to the corresponding connecting and mounting holes of the formwork panel 12 through fasteners, the bottom of the cylinder 41 is directly or indirectly fixed to the corresponding connecting and mounting holes of the formwork panel 12, the bottom of the oil cylinder 31 is directly or indirectly fixed to the corresponding connecting and mounting holes of the formwork panel 12, the cylinder pressure rod 42 is located in the central area of ​​the four sides of the profiling support plate 20, and the oil cylinder pressure rod is located in the four corners of the profiling support plate 20;

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

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

[0047] When implementing:

[0048] The solenoid valve control device 50 and the electric control box 60 are disposed in the peripheral area of ​​the mold frame 10 .

[0049] In a specific implementation, the shapes of the oil cylinder pressing rod include a straight rod pressing rod 32 and a Z-shaped pressing rod 33. A first pivot connection seat 34 is fixedly arranged at one end of the upper part of the mounting seat body of the oil cylinder 31 close to the contoured support block. The bottom of the first pivot rod 35 is pivotally connected to the first pivot connection seat 34. The upper part of the first pivot rod 35 is pivotally connected to the middle region of the length of the oil cylinder pressing rod. The oil cylinder piston output end 311 of the oil cylinder 31 is pivotally connected to the non-pressing end of the oil cylinder pressing rod. The pressing end of the oil cylinder pressing rod is set to move toward or away from the upper surface of the radiator product 80.

[0050] In a specific implementation, the two groups of oil cylinder pressure attachment rods close to the solenoid valve control device 50 and the electric control box 60 are straight rod pressure attachment rods 32, and the two groups of oil cylinder pressure attachment rods far away from the solenoid valve control device 50 and the electric control box 60 are Z-shaped pressure attachment rods 33;

[0051] A cushion block 36 is provided at the bottom of the mounting seat body of the oil cylinder 31 corresponding to the straight rod pressing rod 33;

[0052] The mounting base of the cylinder 31 corresponding to the Z-shaped pressing rod 33 is directly fixed to the corresponding connecting mounting hole of the mold frame panel 12. The Z-shaped 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 contoured 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 contoured support block 20. The pressing end of the high horizontal section 333 is set to move toward or away from the upper surface of the radiator product 80.

[0053] During specific implementation, the shape of the cylinder pressing rod 42 is a Z-shaped pressing rod, and a second pivot connection seat 43 is fixedly provided at one end of the upper part of the mounting seat body of the cylinder 41 close to the contoured support block 20, the bottom of the second pivot rod 44 is pivotally connected to the second pivot connection seat 43, the upper part of the second pivot rod 44 is pivotally connected to the middle length area 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, and the pressing end of the cylinder pressing rod 42 is set to move toward or away from the upper surface of the radiator product 80; a pressing pad 45 is fixedly installed at the bottom of the high section of the pressing end of the cylinder pressing rod 42, which ensures that the surface of the radiator product 80 will not be damaged.

[0054] In a 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 fixedly mounted on the mold frame panel 12, and the upper surface of the mounting frame 101 is fixedly provided with a telescopic cylinder 102. The output end of the telescopic cylinder 102 is fixedly provided with an end side positioning plate 103. The end side positioning plate 103 ensures that the end of the heat exchanger product 80 can be reliably positioned, so that the heat exchanger product 80 can be quickly positioned on the contoured support block 20.

[0055] In specific implementation, the four corners of the mold frame panel 12 are also fixed with upward convex lifting ears 90, which facilitates the reliable transportation operation of the entire equipment;

[0056] A semi-open U-shaped connection hole 111 is also provided at the bottom of the mold frame support foot 11, which facilitates the entire mold frame 10 to be reliably installed on the FSW machine.

[0057] Its working principle is as follows: place the radiator product to be processed on the contoured support block, and use the oil cylinder to press and position the four corners of the radiator product so that there will be no position offset during the FSW processing. The oil cylinder and the air cylinder are installed in the corresponding connecting and mounting holes of the mold frame panel. The position of the air cylinder and the oil cylinder can be adjusted according to the size of the product (applicable to various products). The solenoid valve control device controls the on and off of each cylinder at the same time, and the electric control box controls each oil cylinder. During processing, start the button of the electric control box, first the oil cylinder presses the product, and then the cylinders are controlled by the time relay to press the product in sequence. The order of the cylinders is determined by the friction welding path. After friction welding, the air cylinder and the oil cylinder are automatically disconnected, and the radiator product is taken out, which meets the requirements of simple and convenient auxiliary production, while shortening working hours, improving production efficiency and yield, and greatly improving the competitiveness of the product market.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fixture mechanism used in FSW, which is suitable for positioning of stir friction welding of radiator products, It is characterized in that It includes: The mold frame comprises a mold frame support foot and a mold frame panel, wherein the mold frame support foot is fixedly arranged at the bottom of the mold frame panel, and a plurality of connection and mounting holes are arranged on the mold frame panel; A contoured support block, which is made according to the bottom shape of the radiator product and is used to position the radiator product; A plurality of groups of oil cylinder pressing assemblies, each group of oil cylinder pressing assemblies comprises an oil cylinder and an oil cylinder pressing rod; A plurality of groups of cylinder pressing assemblies, each group of cylinder pressing assemblies comprising a cylinder and a cylinder pressing rod; A solenoid valve control device, the output end of which is connected to each cylinder through a pipeline; An electric control box, the output end of which is connected to each of the oil cylinders through a pipeline; and a contoured support block mounting frame, which includes a support panel, support blocks on both sides, and connecting and fixing plates around the support panel, the two sides of the bottom of the support panel are respectively fixed with side support blocks, and 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 profiling support block is fixed to the central area of ​​the upper surface of the support panel, the bottom of the connecting and fixing plate is fixed to the corresponding connecting and mounting holes of the formwork panel through fasteners, the bottom of the cylinder is directly or indirectly fixed to the corresponding connecting and mounting holes of the formwork panel, the bottom of the oil cylinder is directly or indirectly fixed to the corresponding connecting and mounting holes of the formwork panel, the cylinder pressure rod is located in the central area of ​​the four sides of the profiling support plate, and the oil cylinder pressure rod is located in the four corners of the profiling support plate; In the unpositioned state, the air cylinder pressing rod and the oil cylinder pressing rod are both arranged at the outer periphery of the upper area of ​​the corresponding radiator product; In the positioning state, the pressing ends of the air cylinder pressing rod and the oil cylinder pressing rod are pressed onto corresponding positions on the upper surface of the radiator product.

2. A clamping mechanism for FSW according to claim 1, Features: The solenoid valve control device and the electric control box are arranged in the peripheral area of ​​the mold frame.

3. A clamping mechanism for FSW according to claim 1, Features: A first pivotal connection seat is fixedly provided on the upper part of the mounting seat body of the oil cylinder near one end of the contoured support block, the bottom of the first pivotal rod is pivotally connected to the first pivotal connection seat, the upper part of the first pivotal rod is pivotally connected to the middle length area of ​​the oil cylinder pressure rod, the cylinder piston output end of the oil cylinder is pivotally connected to the non-pressure attachment end of the oil cylinder pressure rod, and the pressure attachment end of the oil cylinder pressure rod is set to move toward or away from the upper surface of the radiator product.

4. A clamping mechanism for FSW according to claim 1, Features: A second pivotal connection seat is fixedly provided at one end of the upper part of the cylinder's mounting seat body close to the contoured support block, the bottom of the second pivot rod is pivotally connected to the second pivotal connection seat, the upper part of the second pivot rod is pivotally connected to the middle length area 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, and the pressing end of the cylinder pressing rod is set to move toward or away from the upper surface of the radiator product.

5. A clamping mechanism for FSW according to claim 1, Features: The shapes of the oil cylinder pressure attachment rod include a straight rod pressure attachment rod and a Z-shaped pressure attachment rod.

6. A clamping mechanism for FSW according to claim 5, Features: When a cushion block is provided at the bottom of the mounting seat body of the oil cylinder, the shape of the oil cylinder pressure attachment rod is a straight rod pressure attachment rod.

7. A clamping mechanism for FSW according to claim 5, Features: When the bottom of the oil cylinder is directly fixed to the corresponding connecting mounting hole of the mold frame panel, the shape of the oil cylinder pressure attachment rod is a Z-shaped pressure attachment rod, and the Z-shaped pressure attachment rod includes a low horizontal section, a vertical section, and a high horizontal section. The low horizontal section is arranged away from the contoured support block, and the upper part of the first pivot rod is pivotally connected to the bottom position of the vertical section. The cylinder piston output end of the oil cylinder is pivotally connected to one end of the low horizontal section away from the contoured support block, and the pressure attachment end of the high horizontal section is set to move toward or away from the upper surface of the radiator product.

8. A clamping mechanism for FSW according to claim 1, Features: The shape of the cylinder pressing rods is a Z-shaped pressing rod, 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 for FSW according to claim 1, Features: The bottom of the mold frame supporting foot is also provided with a semi-open U-shaped connecting hole.

10. A clamping mechanism for FSW according to claim 1, Features: 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 fixedly mounted on the mold frame panel, and the upper surface of the mounting frame is fixedly provided with a telescopic cylinder. The output end of the telescopic cylinder is fixedly provided with an end side positioning plate, and the end side positioning plate ensures that the end of the heat exchanger product can be reliably positioned.

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