Multi-angle adjustable friction stir welding pressing and clamping mechanism

Abstract

The utility model belongs to the technical field of friction stir welding, especially a multi -angle adjustable friction stir welding pressure tight clamping mechanism, including bottom plate, support, telescopic piece one, telescopic piece two, mounting plate and guide rod, support fixed mounting in bottom plate top, telescopic piece one fixed mounting in support top front, telescopic piece two install in telescopic piece one's output and slide connection in support inside, mounting plate fixed mounting in telescopic piece two bottom, bottom plate top is provided with adjusting device, and adjusting device includes angle adjusting mechanism, clamping mechanism and fixed establishment. The multi -angle adjustable friction stir welding pressure tight clamping mechanism, through setting angle adjusting mechanism, through starting motor drive screw rod one rotation and moving block screw thread connection, to make moving block pass through rotation shaft along the through groove linear movement, cooperate the push plate push the placement board around the connecting rod rotation simultaneously, make workpiece rotation to appropriate angle, realize workpiece friction welding angle adjustment.

Description

Technical Field

[0001] This utility model relates to the field of friction stir welding technology, specifically a multi-angle adjustable friction stir welding clamping mechanism. Background Technology

[0002] Friction stir welding is used for welding aluminum alloy materials. The principle is that at room temperature, two metals are stirred and rubbed together by the stirring head, and the local structure of the metal body is fused together to achieve the welding purpose. During the welding process, the workpiece needs to withstand large mechanical stress and thermal stress. Therefore, tooling is used to fix the workpiece. The fixation of the workpiece to be welded must be based on a comprehensive consideration of the bevel machining accuracy, jig design, the metal to be welded and its size. Lateral opening is easy to occur during the welding process, and it is difficult to keep the joint gap constant. Especially when welding long workpieces, the jig design must be taken seriously.

[0003] Existing methods for fixing workpieces in friction stir welding typically involve clamps or pressure plates. However, these methods can only clamp the workpiece around its perimeter. When the surface of the aluminum alloy plate is uneven, it is prone to shifting during the clamping and welding process, thus affecting the welding quality.

[0004] As disclosed in CN223098227U, a clamping mechanism for friction stir welding can adjust the position of the moving rod to install and correct the workpiece through the interaction of structures such as telescopic cylinder, lower pressure plate, guide frame, moving frame, fastening frame and rotating rod. After positioning, it can be continuously placed without re-correction, and it firmly fits the upper and lower surfaces without skewing, thus having good stability.

[0005] However, this device cannot adjust the angle of friction welding of the workpiece during use, making its application limited and inflexible.

[0006] Therefore, we urgently need to provide a multi-angle adjustable friction stir welding clamping mechanism. Utility Model Content

[0007] The purpose of this invention is to provide a multi-angle adjustable friction stir welding clamping mechanism to solve the problems mentioned in the background art, such as the inability to adjust the angle of friction welding of the workpiece during use, resulting in limited and inflexible application.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-angle adjustable friction stir welding clamping mechanism, comprising a base plate, a bracket, a first telescopic component, a second telescopic component, a mounting plate, and a guide rod. The bracket is fixedly installed on the top of the base plate, the first telescopic component is fixedly installed on the front top of the bracket, the second telescopic component is installed at the output end of the first telescopic component and slidably connected inside the bracket, the mounting plate is fixedly installed on the bottom of the second telescopic component, the guide rod is fixedly installed on the left and right sides of the top of the mounting plate, the welding equipment is fixedly installed on the bottom of the mounting plate, and an adjustment device is provided on the top of the base plate, the adjustment device comprising an angle adjustment mechanism, a clamping mechanism, and a fixing mechanism.

[0009] The angle adjustment mechanism is located on the top of the base plate, the clamping mechanism is located above the base plate, and the fixing mechanism is located on top of the angle adjustment mechanism.

[0010] The angle adjustment mechanism includes a support plate, a connecting rod, a placement plate, a fixing block, a housing, a motor, a threaded rod, a moving block, a rotating shaft, and a push plate. The support plate is fixedly installed around the top of the base plate. The connecting rod is rotatably connected to the interior of two adjacent support plates. The placement plate is located on the left and right sides above the base plate. The fixing block is fixedly installed at the bottom of the placement plate and located outside the connecting rod. The housing is fixedly installed on the left and right sides of the top of the base plate. The motor is fixedly installed on the left side of the housing. The threaded rod is fixedly installed at the output end of the motor. The moving block is threadedly connected to the outside of the threaded rod. The rotating shaft is fixedly installed on the front and rear sides of the moving block. One end of the push plate is rotatably connected to the outside of the rotating shaft, and the other end is rotatably connected to the bottom of the placement plate.

[0011] Preferably, a sliding groove is provided in the middle of the upper surface of the bracket, and limit grooves are provided on the left and right sides of the sliding groove. The upper end of the telescopic component two is slidably connected to the inner wall of the sliding groove, and the guide rod extends to the upper part of the limit groove. The sliding groove enables the telescopic component two to move back and forth, and the limit grooves prevent the welding equipment from generating torque on the telescopic component two during the stirring and friction welding of the workpiece, thus avoiding damage to the telescopic component two.

[0012] Preferably, the housing has through slots on both the front and rear sides, and the rotating shaft passes through the through slots. After the workpiece is placed on the top of the placement plate, the starting motor drives the threaded rod to rotate and connect with the moving block by thread. This causes the moving block to move linearly along the through slot through the rotating shaft. At the same time, the push plate pushes the placement plate to rotate around the connecting rod, so that the workpiece is rotated to a suitable angle, thereby realizing the adjustment of the workpiece friction welding angle.

[0013] Preferably, the clamping mechanism includes a telescopic component three, a connecting plate one, a connecting plate two, a movable plate, a fixed rod, and a clamping plate. The telescopic component three is fixedly installed on the left side of the placement plate. The connecting plate one is fixedly installed at the output end of the telescopic component three and located inside the placement plate. One end of the connecting plate two is rotatably connected to the top of the connecting plate one. The movable plate is installed on the front and rear sides inside the placement plate and is rotatably connected to the other end of the connecting plate two. The fixed rod is fixedly installed at the top left and right ends of the movable plate. The clamping plate is fixedly installed at the top of the fixed rod.

[0014] Preferably, the clamping plate is located on top of the placement plate. After the workpiece is placed on top of the placement plate, the connecting plate is moved by activating the telescopic component three. Under the action of the connecting plate two, the two movable plates at the front and rear are pulled closer to each other, thereby clamping the workpiece on both sides and preventing the workpiece from shaking during friction welding.

[0015] Preferably, the fixing mechanism includes a support frame, a telescopic component four, a pressure plate, a connecting block, a threaded rod two, and a top plate. The support frame is fixedly installed on one side of the two clamping plates facing away from each other. The telescopic component four is fixedly installed on the top of the support frame. The pressure plate is fixedly installed on the bottom of the telescopic component four. The connecting block is fixedly installed on the top of the placement plate. The threaded rod two is threadedly connected to the inside of the connecting block. The top plate is rotatably connected to one end of the threaded rod two.

[0016] Preferably, the connecting block has an internal thread, and the threaded rod is threaded inside the connecting block. By rotating the threaded rod and connecting it to the connecting block, the top plate pushes the two workpieces closer together for friction welding, which facilitates friction welding of the workpieces and prevents the workpieces from moving to both sides during friction welding, thus improving the quality of friction welding.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This multi-angle adjustable friction stir welding clamping mechanism, by setting an angle adjustment mechanism, drives the threaded rod to rotate and connect it to the moving block by starting the motor, so that the moving block moves linearly along the through groove through the rotating shaft. At the same time, the push plate pushes the placement plate to rotate around the connecting rod, so that the workpiece is rotated to a suitable angle, thereby realizing the adjustment of the workpiece friction welding angle.

[0019] 2. This multi-angle adjustable friction stir welding clamping mechanism, by setting up a clamping mechanism, pushes the connecting plate one to move by activating the telescopic component three. Under the action of the connecting plate two, the front and rear movable plates are pulled closer to each other, thereby clamping the workpiece on both sides of the clamping plate, preventing the workpiece from shaking during friction welding and improving the quality of friction welding. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the connection between the welding equipment and the support of this utility model;

[0022] Figure 3 This is a schematic diagram of the connection between the angle adjustment mechanism and the fixing mechanism of this utility model;

[0023] Figure 4 This is a bottom view of the angle adjustment mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the shell of this utility model;

[0025] Figure 6 This is a schematic diagram of the clamping mechanism of this utility model.

[0026] In the diagram: 1. Base plate; 2. Bracket; 3. Telescopic component one; 4. Telescopic component two; 5. Mounting plate; 6. Guide rod; 7. Welding equipment; 801. Support plate; 802. Connecting rod; 803. Placement plate; 804. Fixing block; 805. Housing; 806. Motor; 807. Threaded rod one; 808. Moving block; 809. Rotating shaft; 810. Push plate; 901. Telescopic component three; 902. Connecting plate one; 903. Connecting plate two; 904. Movable plate; 905. Fixing rod; 906. Clamping plate; 1001. Support frame; 1002. Telescopic component four; 1003. Pressure plate; 1004. Connecting block; 1005. Threaded rod two; 1006. Top plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1:

[0029] Due to the limitations and inflexibility of current technologies in adjusting the angle of friction welding on workpieces, please refer to [link to relevant documentation]. Figures 1-6This embodiment provides a multi-angle adjustable friction stir welding clamping mechanism, which can adjust the workpiece friction welding angle and improve the flexibility of the device. This multi-angle adjustable friction stir welding clamping mechanism includes a base plate 1, a bracket 2, a first telescopic component 3, a second telescopic component 4, a mounting plate 5, and a guide rod 6. The bracket 2 is fixedly installed on the top of the base plate 1. A sliding groove is formed in the middle of the upper surface of the bracket 2, and limit grooves are formed on the left and right sides of the sliding groove. The upper end of the second telescopic component 4 is slidably connected to the inner wall of the sliding groove. The guide rod 6 extends above the limit grooves. The sliding groove allows the second telescopic component 4 to move back and forth, and the limit grooves prevent the welding equipment 7 from generating torque on the second telescopic component 4 during friction stir welding of the workpiece, thus preventing damage. The telescopic component 2 4 is damaged. Telescopic component 1 3 is fixedly installed on the top front of the bracket 2. Telescopic component 2 4 is installed at the output end of telescopic component 1 3 and slidably connected inside the bracket 2. Both telescopic component 1 3 and telescopic component 2 4 are hydraulic cylinders with model number CX-SD80X65. Mounting plate 5 is fixedly installed at the bottom of telescopic component 2 4. Guide rod 6 is fixedly installed on the top left and right sides of mounting plate 5. Welding equipment 7 is fixedly installed at the bottom of mounting plate 5. The top of the base plate 1 is equipped with an adjustment device, which includes an angle adjustment mechanism, a clamping mechanism and a fixing mechanism.

[0030] An angle adjustment mechanism is located at the top of the base plate 1, a clamping mechanism is located above the base plate 1, and a fixing mechanism is located at the top of the angle adjustment mechanism.

[0031] The angle adjustment mechanism includes a support plate 801, a connecting rod 802, a placement plate 803, a fixing block 804, a housing 805, a motor 806, a threaded rod 807, a moving block 808, a rotating shaft 809, and a push plate 810. The support plate 801 is fixedly installed around the top of the base plate 1. The connecting rod 802 is rotatably connected to the interior of two adjacent support plates 801. The placement plate 803 is located on the left and right sides above the base plate 1. The fixing block 804 is fixedly installed at the bottom of the placement plate 803 and located outside the connecting rod 802. The housing 805 is fixedly installed on the left and right sides of the top of the base plate 1. The housing 805 has through slots on the front and rear sides, and the rotating shaft 809 passes through the through slots. After the workpiece is placed on top of the placement plate 803, the motor 806 is started to drive the threaded rod 807. The threaded rod 807 rotates and is threadedly connected to the movable block 808, thereby causing the movable block 808 to move linearly along the through groove via the rotating shaft 809. At the same time, it cooperates with the push plate 810 to push the placement plate 803 to rotate around the connecting rod 802, so that the workpiece is rotated to a suitable angle, realizing the adjustment of the workpiece friction welding angle. The motor 806 is fixedly installed on the left side of the housing 805. The motor 806 is model 4RK25GN-C and has forward and reverse rotation functions. The threaded rod 807 is fixedly installed on the output end of the motor 806. The movable block 808 is threadedly connected to the outside of the threaded rod 807. The rotating shaft 809 is fixedly installed on the front and rear sides of the movable block 808. One end of the push plate 810 is rotatably connected to the outside of the rotating shaft 809, and the other end is rotatably connected to the bottom of the placement plate 803.

[0032] To achieve clamping and fixing of the workpiece, prevent workpiece shaking, and improve the quality of friction welding, this device is also equipped with a clamping mechanism. The clamping mechanism includes a telescopic component 901, a connecting plate 902, a connecting plate 903, a movable plate 904, a fixed rod 905, and a clamping plate 906. The telescopic component 901 is fixedly installed on the left side of the placement plate 803. The telescopic component 901 is an electric push rod, model MOTECKMD10. The connecting plate 902 is fixedly installed at the output end of the telescopic component 901 and is located inside the placement plate 803. One end of the connecting plate 903 is rotatably connected to the top of the connecting plate 902. The movable plate 904 is installed inside the placement plate 803 on both the front and rear sides and is rotatably connected to the other end of the connecting plate 903. The fixed rod 905 is fixedly installed on the top left and right ends of the movable plate 904. The clamping plate 906 is fixedly installed on the top of the fixed rod 905. The clamping plate 906 is located on the top of the placement plate 803. After the workpiece is placed on the top of the placement plate 803, the connecting plate 902 is moved by activating the telescopic component 901. Under the action of the connecting plate 903, the two movable plates 904 are pulled closer to each other, thereby clamping the clamping plate 906 on both sides of the workpiece to prevent the workpiece from shaking during friction welding.

[0033] Example 2:

[0034] Based on Example 1, please refer to Figures 1-3 To prevent the workpiece from shaking during friction welding and improve welding quality, this device also includes a fixing mechanism. The fixing mechanism comprises a support frame 1001, a telescopic component 1002, a pressure plate 1003, a connecting block 1004, a threaded rod 1005, and a top plate 1006. The support frame 1001 is fixedly installed on the opposite side of the two clamping plates 906. The telescopic component 1002 is fixedly installed on the top of the support frame 1001. The pressure plate 1003 is fixedly installed on the bottom of the telescopic component 1002. The connecting block 1004 is fixedly installed on... The top of the placement plate 803 has a connecting block 1004 with an internal thread, and a threaded rod 1005 is threaded inside the connecting block 1004. By rotating the threaded rod 1005 to connect with the connecting block 1004, the top plate 1006 pushes the two workpieces closer together to mate, which facilitates friction welding of the workpieces and prevents the workpieces from moving to both sides during friction welding, thus improving the quality of friction welding. The threaded rod 1005 is threaded inside the connecting block 1004, and the top plate 1006 is rotatably connected to one end of the threaded rod 1005.

[0035] In use, the workpiece is placed on top of the left and right placement plates 803. Then, the motor 806 is started to drive the threaded rod 807 to rotate and connect with the moving block 808. This causes the moving block 808 to move linearly along the through groove via the rotating shaft 809. At the same time, the push plate 810 pushes the placement plate 803 to rotate around the connecting rod 802, so that the workpiece is rotated to a suitable angle. Then, the left and right threaded rods 1005 are rotated and connected with the connecting block 1004, so that the top plate 1006 pushes the two workpieces closer together. Then, the telescopic component 901 is started to push the connecting plate 902 to move. Under the action of the connecting plate 903, the front and rear movable plates 904 are pulled closer together to clamp the workpiece. The telescopic component 1002 pushes the pressure plate 1003 down to press the workpiece. Then, the telescopic component 4 is started to push the welding equipment 7 down to the joint of the two workpieces and start the welding equipment 7 to perform stir friction welding on the two workpieces. At the same time, the telescopic component 3 is started to push the telescopic component 4 to move the welding equipment 7 linearly to perform transverse welding at the joint of the workpieces.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A multi-angle adjustable friction stir welding clamping mechanism, comprising a base plate (1), a bracket (2), a first telescopic component (3), a second telescopic component (4), a mounting plate (5), and a guide rod (6), wherein the bracket (2) is fixedly installed on the top of the base plate (1), the first telescopic component (3) is fixedly installed on the top front of the bracket (2), the second telescopic component (4) is installed at the output end of the first telescopic component (3) and slidably connected inside the bracket (2), the mounting plate (5) is fixedly installed on the bottom of the second telescopic component (4), the guide rod (6) is fixedly installed on the left and right sides of the top of the mounting plate (5), and a welding device (7) is fixedly installed on the bottom of the mounting plate (5), characterized in that: The bottom plate (1) is provided with an adjustment device on its top, which includes an angle adjustment mechanism, a clamping mechanism and a fixing mechanism; The angle adjustment mechanism is located on the top of the base plate (1), the clamping mechanism is located above the base plate (1), and the fixing mechanism is located on the top of the angle adjustment mechanism; The angle adjustment mechanism includes a support plate (801), a connecting rod (802), a placement plate (803), a fixing block (804), a housing (805), a motor (806), a threaded rod (807), a moving block (808), a rotating shaft (809), and a push plate (810). The support plate (801) is fixedly installed around the top of the base plate (1). The connecting rod (802) is rotatably connected to the interior of two adjacent support plates (801). The placement plate (803) is located on the left and right sides above the base plate (1). The fixing block (804) is fixedly installed on the placement plate. (803) at the bottom and outside the connecting rod (802), the housing (805) is fixedly installed on the top left and right sides of the base plate (1), the motor (806) is fixedly installed on the left side of the housing (805), the threaded rod (807) is fixedly installed on the output end of the motor (806), the moving block (808) is threadedly connected to the outside of the threaded rod (807), the rotating shaft (809) is fixedly installed on the front and rear sides of the moving block (808), one end of the push plate (810) is rotatably connected to the outside of the rotating shaft (809), and the other end is rotatably connected to the bottom of the placement plate (803).

2. The multi-angle adjustable friction stir welding clamping mechanism according to claim 1, characterized in that: The bracket (2) has a sliding groove in the middle of its upper surface, and limit grooves are provided on the left and right sides of the sliding groove. The upper end of the telescopic component (4) is slidably connected to the inner wall of the sliding groove, and the guide rod (6) extends to the upper part of the limit groove.

3. The multi-angle adjustable friction stir welding clamping mechanism according to claim 1, characterized in that: The housing (805) has through slots on both the front and rear sides, and the rotating shaft (809) passes through the through slots.

4. The multi-angle adjustable friction stir welding clamping mechanism according to claim 1, characterized in that: The clamping mechanism includes a telescopic component three (901), a connecting plate one (902), a connecting plate two (903), a movable plate (904), a fixed rod (905), and a clamping plate (906). The telescopic component three (901) is fixedly installed on the left side of the placement plate (803). The connecting plate one (902) is fixedly installed at the output end of the telescopic component three (901) and located inside the placement plate (803). One end of the connecting plate two (903) is rotatably connected to the top of the connecting plate one (902). The movable plate (904) is installed on the front and rear sides inside the placement plate (803) and rotatably connected to the other end of the connecting plate two (903). The fixed rod (905) is fixedly installed at the top left and right ends of the movable plate (904). The clamping plate (906) is fixedly installed at the top of the fixed rod (905).

5. The multi-angle adjustable friction stir welding clamping mechanism according to claim 4, characterized in that: The clamp (906) is located on top of the placement plate (803).

6. The multi-angle adjustable friction stir welding clamping mechanism according to claim 1, characterized in that: The fixing mechanism includes a support frame (1001), a telescopic component four (1002), a pressure plate (1003), a connecting block (1004), a threaded rod two (1005), and a top plate (1006). The support frame (1001) is fixedly installed on the opposite side of the two clamping plates (906). The telescopic component four (1002) is fixedly installed on the top of the support frame (1001). The pressure plate (1003) is fixedly installed on the bottom of the telescopic component four (1002). The connecting block (1004) is fixedly installed on the top of the placement plate (803). The threaded rod two (1005) is threadedly connected to the inside of the connecting block (1004). The top plate (1006) is rotatably connected to one end of the threaded rod two (1005).

7. The multi-angle adjustable friction stir welding clamping mechanism according to claim 6, characterized in that: The connecting block (1004) has an internal thread, and the threaded rod two (1005) is threaded inside the connecting block (1004).

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