Friction stir welding assembly calibration device

Abstract

The utility model relates to a friction stir welding assembly calibration device which comprises a placing table and a limiting block fixedly installed on one side of the top of the placing table, an installation plate is fixedly arranged on the other side of the top of the placing table, a calibration mechanism used for positioning a workpiece is arranged on the front face of the installation plate, and a guide table is fixedly installed on the portion, below the calibration mechanism, of the placing table. The extending end of the air cylinder is controlled to be shrunk from the longest length to the half length, in the process, the rolling wheel provides upward overturning thrust for the buffer rod, the pressing frame and the overturning rod are overturned in cooperation with the thrust spring, the pressing roller is driven to make rolling contact with the workpiece away from the limiting block, and the extending end of the air cylinder is continuously controlled to be shrunk to the shortest length; the two workpieces are pushed together by the push plate and are matched with the limiting block to calibrate the positions of the two workpieces, meanwhile, thrust is continuously provided for the buffer rod, the thrust spring is compressed to be the shortest, the pressing roller provides pressing force for the workpieces far away from the limiting block, and the contact part of the two workpieces is prevented from tilting.

Description

Technical Field

[0001] The utility model relates to the technical field of friction stir welding, in particular to a friction stir welding assembly calibration device. Background Art

[0002] Friction stir welding utilizes the heat generated by the movement and friction between the workpiece ends to achieve a thermoplastic state, which is then rapidly forged to complete the weld. The friction stir welding assembly and calibration device is designed to improve the welding efficiency and quality of materials such as aluminum alloys, ensuring the structural strength of the weld. Through optimized design and precise calibration, the friction stir welding assembly process is simplified, while also reducing subsequent maintenance costs and extending service life.

[0003] During the welding process, the existing stir friction welding assembly calibration device ensures accurate alignment and stable contact between the stirring head and the workpiece through precise calibration and stable support, thereby achieving high-quality welding; however, when the two workpieces are accurately aligned, due to the effect of lateral extrusion force, the contact part of the two workpieces is prone to warping, affecting the efficiency of the stirring head in welding the two workpieces. Utility Model Content

[0004] The technical problems solved by this solution are:

[0005] (1) How to solve the problem that when two workpieces are accurately aligned, the contact parts of the two workpieces are easily lifted up due to the effect of the lateral extrusion force, which affects the welding efficiency of the stirring head on the two workpieces.

[0006] The purpose of the utility model can be achieved by the following technical solutions: a stir friction welding assembly calibration device, comprising a placing table and a limit block fixedly installed on one side of the top of the placing table, a mounting plate fixedly provided on the other side of the top of the placing table, a calibration mechanism for positioning the workpiece provided on the front of the mounting plate, and a guide platform fixedly installed on the placing table below the calibration mechanism;

[0007] The calibration mechanism includes a cylinder fixedly connected to the front of the mounting plate. The cylinder is vertically arranged, and a first shifting rod is fixedly installed on the protruding end of the cylinder. A pressing unit for guiding the movement of the workpiece is provided on one side of the cylinder.

[0008] A further technical improvement of the present invention is that a support frame is fixedly connected to the mounting plate on one side of the cylinder, a transmission plate is rotatably arranged between the support frame and the mounting plate via a pin shaft, and the first shift rod is movably connected to the top of the transmission plate.

[0009] The cam is pressed against the push rod and the push rod is pressed downwards to push the workpiece back into the workpiece, and the cam is pressed downwards to push the workpiece back into the workpiece, thereby preventing the workpiece from being tilted.

[0010] A further technical improvement of the present invention is that the pressing unit includes a flip rod rotatably connected to the top of the guide platform through a rotating seat, one end of the flip rod is fixedly installed with a pressing frame, the pressing frame is rotatably provided with a pressing roller at the end away from the flip rod, and the other end of the flip rod is fixedly installed with a counterweight block.

[0011] A further technical improvement of the present invention is that a buffer rod is rotatably provided on the middle part of the flip rod near the counterweight block, an incomplete ring is movably passed through the middle part of the buffer rod, one end of the incomplete ring is fixedly connected to the flip rod, and a thrust spring is sleeved on the incomplete ring between the buffer rod and the flip rod.

[0012] A further technical improvement of the present invention is that a roller is rotatably provided on the protruding end of the cylinder, the roller is rollingly connected to one end of the buffer rod, and the roller is located below the buffer rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] When the utility model is in use, the extended end of the cylinder is controlled to shrink from the longest to half the length. During this process, the roller provides an upward flipping thrust to the buffer rod, and cooperates with the thrust spring to flip the pressing frame and the flipping rod, driving the pressing roller to roll and contact with the workpiece away from the limit block, and continues to control the extended end of the cylinder to shrink to the shortest, so that the push plate pushes the two workpieces together, and cooperates with the limit block to calibrate the positions of the two workpieces. At the same time, the roller continues to provide an upward flipping thrust to the buffer rod. At this time, the thrust spring is compressed to the shortest, and the pressing roller provides pressing force to the workpiece away from the limit block, preventing the contact parts of the two workpieces from tilting, thereby ensuring the efficiency of the stirring head in welding the two workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the calibration mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the pressing unit of the utility model.

[0019] In the figure: 1. Cylinder; 2. Calibration mechanism; 3. Limit block; 4. Placing table; 5. Guide table; 6. Mounting plate; 21. First lever; 22. Support frame; 23. Transmission plate; 24. Second lever; 25. Transmission rod; 26. Push plate; 27. Pressing unit; 271. Pressing frame; 272. Rotating seat; 273. Flipping rod; 274. Counterweight; 275. Roller; 276. Buffer rod; 277. Incomplete ring. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 3 As shown, a stir friction welding assembly calibration device includes a placing table 4 and a limit block 3 fixedly installed on one side of the top of the placing table 4, a mounting plate 6 is fixedly provided on the other side of the top of the placing table 4, a calibration mechanism 2 for positioning the workpiece is provided on the front of the mounting plate 6, and a guide platform 5 is fixedly installed on the placing table 4 below the calibration mechanism 2.

[0022] See also Figure 1-Figure 3 As shown, the above-mentioned calibration mechanism 2 includes a cylinder 1 fixedly connected to the front of the mounting plate 6. The cylinder 1 is vertically arranged, and a first shift rod 21 is fixedly installed at the protruding end of the cylinder 1. A pressing unit 27 for guiding the movement of the workpiece is provided on one side of the cylinder 1.

[0023] See also Figure 1 and Figure 2 As shown, a support frame 22 is fixedly connected to the mounting plate 6 on one side of the cylinder 1, and a transmission plate 23 is rotatably provided between the support frame 22 and the mounting plate 6 via a pin shaft, and the first shift rod 21 is movably connected to the top of the transmission plate 23.

[0024] See also Figure 1 and Figure 2As shown, a transmission rod 25 is movably passed through the bottom of the guide table 5. The transmission rod 25 is arranged horizontally, and one end of the transmission rod 25 is fixedly installed with a push plate 26 for pushing the workpiece, and the other end of the transmission rod 25 is movably connected to the bottom of the transmission plate 23 through the second shifting rod 24; by controlling the extended end of the cylinder 1 to retract from the longest to half the length, during this process, the roller 275 provides an upward flipping thrust to the buffer rod 276, and cooperates with the thrust spring to flip the pressing frame 271 and the flip rod 273, driving the pressing roller to roll in contact with the workpiece away from the limit block 3, and continue to control the extended end of the cylinder 1 to retract to the shortest, so that the push plate 26 pushes the two workpieces together, and cooperates with the limit block 3 to calibrate the positions of the two workpieces. At the same time, the roller 275 continues to provide an upward flipping thrust to the buffer rod 276. At this time, the thrust spring is compressed to the shortest, and the pressing roller provides a pressing force on the workpiece away from the limit block 3, preventing the contact part of the two workpieces from tilting, thereby ensuring the efficiency of the stirring head in welding the two workpieces.

[0025] See also Figure 2 and Figure 3 As shown, the above-mentioned pressing unit 27 includes a flip rod 273 which is rotatably connected to the top of the guide platform 5 through a rotating seat 272. A pressing frame 271 is fixedly installed at one end of the flip rod 273. A pressing roller is rotatably provided at the end of the pressing frame 271 away from the flip rod 273. A counterweight block 274 is fixedly installed at the other end of the flip rod 273.

[0026] See also Figure 2 and Figure 3 As shown, the above-mentioned flip rod 273 is rotatably provided with a buffer rod 276 near the middle of the counterweight block 274, and an incomplete ring 277 is movably passed through the middle of the buffer rod 276. One end of the incomplete ring 277 is fixedly connected to the flip rod 273, and a thrust spring is sleeved on the incomplete ring 277 between the buffer rod 276 and the flip rod 273.

[0027] See also Figure 2 and Figure 3 As shown, the protruding end of the cylinder 1 is also rotatably provided with a roller 275 , the roller 275 is rollingly connected to one end of the buffer rod 276 , and the roller 275 is located below the buffer rod 276 .

[0028] Working principle: When the utility model is in use, first, two workpieces are placed on the placing table 4, and then the positions of the two workpieces are adjusted so that one of the workpieces contacts the limit block 3. By controlling the extended end of the cylinder 1 to retract from the longest to half the length, the first lever 21 drives the transmission plate 23 to rotate, and cooperates with the second lever 24 to drive the transmission rod 25 and the push plate 26 to move, so that the push plate 26 is close to the two workpieces. In this process, the roller 275 provides an upward turning thrust to the buffer rod 276, and cooperates with the thrust spring to make the pressing frame 271 and the flip rod 273 flip, driving the pressing The roller is in rolling contact with the workpiece away from the limit block 3. At this time, due to the influence of the gravity of the counterweight block 274, the thrust spring is only shortened by one quarter, and the extended end of the cylinder 1 is continued to be controlled to shrink to the shortest, so that the push plate 26 pushes the two workpieces together, and cooperates with the limit block 3 to calibrate the positions of the two workpieces. At the same time, the roller 275 continues to provide an upward flipping thrust to the buffer rod 276. At this time, the thrust spring is compressed to the shortest, and the pressing roller provides pressing force to the workpiece away from the limit block 3 to prevent the contact part of the two workpieces from tilting, thereby ensuring the efficiency of the stirring head in welding the two workpieces.

[0029] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A friction stir welding assembly calibration device, comprising a placement table (4) and a limit block (3) fixedly mounted on one side of the top of the placement table, characterized in that: A mounting plate (6) is fixedly provided on the other side of the top of the placing table (4), a calibration mechanism (2) for positioning the workpiece is provided on the front of the mounting plate (6), and a guide platform (5) is fixedly installed on the placing table (4) below the calibration mechanism (2); the calibration mechanism (2) includes a cylinder (1) fixedly connected to the front of the mounting plate (6), a first shifting rod (21) is fixedly installed on the protruding end of the cylinder (1), and a pressing unit (27) for guiding the movement of the workpiece is provided on one side of the cylinder (1).

2. The friction stir welding assembly calibration device according to claim 1, characterized in that: A support frame (22) is fixedly connected to the mounting plate (6) on one side of the cylinder (1); a transmission plate (23) is rotatably arranged between the support frame (22) and the mounting plate (6); and the first shifting rod (21) is movably connected to the top of the transmission plate (23).

3. The friction stir welding assembly calibration device according to claim 1, characterized in that: A transmission rod (25) is movably passed through the bottom of the guide platform (5), one end of the transmission rod (25) is fixedly mounted with a push plate (26) for pushing the workpiece, and the other end of the transmission rod (25) is movably connected to the bottom of the transmission plate (23).

4. The friction stir welding assembly calibration device according to claim 1, characterized in that: The pressing unit (27) includes a flip rod (273) rotatably connected to the top of the guide platform (5), a pressing frame (271) is fixedly installed on one end of the flip rod (273), a pressing roller is rotatably provided on the end of the pressing frame (271) away from the flip rod (273), and a counterweight block (274) is fixedly installed on the other end of the flip rod (273).

5. The friction stir welding assembly calibration device according to claim 4, characterized in that: The flip rod (273) is provided with a buffer rod (276) rotatably arranged near the middle of the counterweight (274); an incomplete ring (277) is movably passed through the middle of the buffer rod (276); one end of the incomplete ring (277) is fixedly connected to the flip rod (273); a thrust spring is sleeved on the incomplete ring (277) between the buffer rod (276) and the flip rod (273).

6. The friction stir welding assembly calibration device according to claim 4, characterized in that: The extended end of the cylinder (1) is also rotatably provided with a roller (275), the roller (275) is rollingly connected to one end of the buffer rod (276), and the roller (275) is located below the buffer rod (276).

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