A centering and positioning mechanism for weld spatter welding

Abstract

This utility model discloses a centering and positioning mechanism for molten sheet welding, including a pressure cap column and a clamping assembly. The pressure cap column includes a connecting part and a pressing part connected sequentially from top to bottom. The clamping assembly is installed on the pressure cap column. The clamping assembly includes a first connecting rod, a second connecting rod, a connecting rod, a clamping gripper, a connecting block, and a spring. The two first connecting rods are rotatably installed on the outer end of the connecting part, and the extended end of the first connecting rod is rotatably installed with the second connecting rod. The two second connecting rods are rotatably connected in the middle by the connecting rod. An clearance opening is provided at the lower end of the pressing part. A clamping gripper is installed at the tail end of the second connecting rod located inside the clearance opening. A connecting block is installed in the middle of the connecting rod. A spring mounting hole is provided inside the pressing part above the connecting block, and a spring that abuts against the connecting block is installed in the spring mounting hole. Through the above method, this utility model solves the problem of the molten sheet not being centered in the tube when welding one end of the molten material by adding a molten material clamping design to the pressure cap column.

Description

Technical Field

[0001] This utility model relates to the field of fuse manufacturing technology, and in particular to a centering and positioning mechanism for welding fuse contacts. Background Technology

[0002] Some tubular fuses have a fuse element structure called a fusible link, such as... Figure 1 As shown, the tubular fuse includes a fusible link structure 01, a tube body 02, and a copper cap 03. The fusible link structure is narrow at one end and wide at the other. The narrow end of the fusible link passes through the fuse tube body, while the wide end hangs on the tube body wall. Copper caps are installed at both ends of the tube body, and the copper caps are pre-tinned. Then, the fusible link is soldered. Because the narrow end of the fusible link has a certain amount of movement within the tube body, the fusible link may become misaligned during the soldering process. Figure 2 As shown, this ultimately leads to poor welding.

[0003] Based on the above defects and shortcomings, it is necessary to improve the existing technology and design a centering positioning mechanism for fusion welding. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a centering and positioning mechanism for welding molten sheet. By adding a molten material clamping design to the pressure cap column, the problem of the molten sheet not being centered in the tube when welding one end of the molten material is solved.

[0005] To solve the above-mentioned technical problems, the present invention provides a centering and positioning mechanism for molten sheet welding. This mechanism includes a pressure cap column and a clamping assembly. The pressure cap column is driven by a cylinder to move up and down. The pressure cap column includes a connecting part and a pressing part connected sequentially from top to bottom. A clamping assembly for clamping and centering the molten sheet is installed on the pressure cap column. The clamping assembly includes a first connecting rod, a second connecting rod, a connecting rod, a clamping gripper, a connecting block, and a spring. The two first connecting rods are rotatably installed on the outer end of the connecting part. The extended end of the first connecting rod is rotatably installed with a second connecting rod. The two second connecting rods are rotatably connected in the middle by the connecting rod. An clearance opening is provided at the lower end of the pressing part. The connecting rod passes through the clearance opening. The second connecting rod is bent toward the clearance opening. A clamping gripper is installed at the tail end of the second connecting rod located inside the clearance opening. A connecting block is installed in the middle of the connecting rod. A spring mounting hole is provided inside the pressing part above the connecting block. A spring that abuts against the connecting block is installed in the spring mounting hole.

[0006] Preferably, the two clamping grippers are symmetrically inclined and the two clamping grippers are designed to gradually narrow from top to bottom. The lower end of each clamping gripper is also provided with a guide slope to facilitate insertion into the tube body.

[0007] Preferably, the bottom of the connecting block is provided with a groove that mates with the tube body.

[0008] Preferably, the top of the pressure cap column is provided with a threaded hole, and the threaded hole is connected to the transmission rod of the cylinder by a thread.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] The pressure cap column is driven by a cylinder to press down and fix the inner tube of the welding fixture;

[0011] The clamping assembly moves down together with the pressure cap column, the bottom groove of the connecting block contacts the tube body, the connecting rod is lifted by the connecting block, which drives the first connecting rod and the second connecting rod to rotate, thereby driving the two clamping grippers to move relative to each other to clamp the molten sheet inside the tube body, and the molten sheet is located in the center of the tube body;

[0012] The pressure cap column rises, and the built-in spring drives the clamping assembly, causing the clamping gripper to return to its initial state, completing the entire movement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a tubular fuse.

[0014] Figure 2 This diagram illustrates the phenomenon where one end of the fusion sheet is not centered during the welding process.

[0015] Figure 3 This is a schematic diagram of a centering and positioning mechanism for welding sheet metal.

[0016] Figure 4 This is a cross-sectional view of a centering and positioning mechanism for fusion welding.

[0017] Among them, 01 is the melt structure, 02 is the tube body, and 03 is the copper cap;

[0018] 1. Pressure cap post; 10. Threaded hole; 11. Connecting part; 12. Press-fit part; 120. Clearance opening; 121. Spring mounting hole;

[0019] 2. Clamping assembly, 21. First link, 22. Second link, 23. Connecting rod, 24. Clamping gripper, 240. Guide avoidance ramp, 25. Connecting block, 250. Groove, 26. Spring. Detailed Implementation

[0020] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0021] Please see Figures 1 to 4 The embodiments of this utility model include:

[0022] A centering and positioning mechanism for molten sheet welding is provided. The mechanism includes a pressure cap post 1 and a clamping assembly 2, wherein the pressure cap post 1 is equipped with the clamping assembly 2 for clamping the molten sheet and centering it.

[0023] The pressure cap 1 is driven by a cylinder to move up and down. The pressure cap 1 includes a connecting part 11 and a pressing part 12 connected from top to bottom. The top of the pressure cap 1 is provided with a threaded hole 10, which is connected to the transmission rod of the cylinder by a thread.

[0024] The clamping assembly 2 includes a first connecting rod 21, a second connecting rod 22, a connecting rod 23, a clamping gripper 24, a connecting block 25, and a spring 26. The two first connecting rods 21 are rotatably mounted to the outer end of the connecting part 11. The extended end of the first connecting rod 21 is rotatably mounted with the second connecting rod 22. The two second connecting rods 22 are rotatably connected in the middle by the connecting rod 23. The lower end of the pressing part 12 is provided with a clearance opening 120. The connecting rod 23 passes through the clearance opening 120. The second connecting rod 22 is bent toward the clearance opening 120. The tail of the second connecting rod 22 located inside the clearance opening 120 is equipped with a clamping gripper 24. The connecting block 25 is installed in the middle of the connecting rod 23. The pressing part 12 above the connecting block 25 is provided with a spring mounting hole 121. A spring 26 that abuts against the connecting block 25 is installed in the spring mounting hole 121.

[0025] The two clamping grippers 24 are symmetrically inclined and gradually narrow from top to bottom. The lower end of each clamping gripper 24 is also provided with a guide slope 240 to facilitate insertion into the tube body.

[0026] The bottom of the connecting block 25 is provided with a groove 250 that mates with the tube body.

[0027] In this utility model, a centering and positioning mechanism for fusion welding is used. When the product to be welded is located inside the welding fixture, a copper cap is installed at the bottom of the tube body 02, and tin wire is inside the copper cap. The fusion sheet passes through the tube body. A cylinder drives the pressure cap column 1 to press down, and the clamping assembly 2 moves down along with the pressure cap column 1. Two clamping grippers 24 are inserted into the tube body, and the bottom groove 250 of the connecting block 25 contacts the tube body. The tube body inside the welding fixture is fixed by the clamping assembly 2. The cylinder continues to drive the pressure cap column 1 to press down. At this time, the spring 26 is compressed, the connecting block 25 lifts the connecting rod 23, and the lifting of the connecting rod 23 causes the first connecting rod 21 and the second connecting rod 22 to rotate. The cylinder moves, thereby causing the two clamping grippers 24 to move relative to each other and clamp the molten sheet inside the tube. The molten sheet is in the center position inside the tube. The cylinder continues to drive the pressure cap column 1 to press down until the lower end of the pressing part 12 contacts the tube opening. At this time, the purpose of clamping the molten sheet and ensuring that it is in the center position of the tube is achieved. The welding action is then performed. The heating table heats the welding fixture, the solder wire melts and welds, and the copper cap is welded to one end of the molten sheet. After the welding is completed, the cylinder drives the pressure cap column 1 to rise. The pressure cap column 1 and the connecting block 25 move away from the tube in sequence. The clamping assembly 2 returns to its initial state under the elastic force of the spring 26, and the two clamping grippers 24 are in the unfolded state.

[0028] This utility model discloses a centering and positioning mechanism for welding molten sheet. By adding a molten material clamping design to the pressure cap column, it solves the problem of the molten sheet not being centered in the tube when welding one end of the molten material.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A centering and positioning mechanism for welding fusion plates, characterized in that: The device includes a pressure cap post (1) and a clamping assembly (2). The pressure cap post (1) is driven by a cylinder to move up and down. The pressure cap post (1) includes a connecting part (11) and a pressing part (12) connected from top to bottom. The pressure cap post (1) is equipped with a clamping assembly (2) for clamping the molten sheet and centering it. The clamping assembly (2) includes a first connecting rod (21), a second connecting rod (22), a connecting rod (23), a clamping gripper (24), a connecting block (25), and a spring (26). The two first connecting rods (21) are rotatably mounted to the outer end of the connecting part (11), and the second connecting rod (22) is rotatably mounted on the extended end of the first connecting rod (21). The two second connecting rods (22) are rotatably connected in the middle by a connecting rod (23). The lower end of the press-fitting part (12) is provided with a clearance opening (120). The connecting rod (23) passes through the clearance opening (120). The second connecting rod (22) is bent toward the clearance opening (120). A clamping gripper (24) is installed at the tail of the second connecting rod (22) located inside the clearance opening (120). A connecting block (25) is installed in the middle of the connecting rod (23). A spring mounting hole (121) is provided inside the press-fitting part (12) above the connecting block (25). A spring (26) that abuts against the connecting block (25) is installed in the spring mounting hole (121).

2. The centering and positioning mechanism for weld strip welding according to claim 1, characterized in that: The two clamping grippers (24) are symmetrically inclined and the two clamping grippers (24) are designed to gradually narrow from top to bottom. The lower end of the clamping gripper (24) is also provided with a guide avoidance slope (240) to facilitate insertion into the tube body.

3. The centering and positioning mechanism for weld strip welding according to claim 1, characterized in that: The bottom of the connecting block (25) is provided with a groove (250) that mates with the tube body.

4. The centering and positioning mechanism for weld strip welding according to claim 1, characterized in that: The top of the pressure cap column (1) is provided with a threaded hole (10), and the threaded hole (10) is connected to the transmission rod of the cylinder by a thread.

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