A multi-functional clamping and fixing structure for a high-frequency welding machine converter
By designing a multi-functional clamping and fixing structure, the problems of single-clamping limitations of high-frequency welding machines and unstable clamping of irregular workpieces are solved, achieving stable clamping and continuous welding of workpieces, thereby improving production efficiency and workpiece protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN ZHONGYI METAL PROD CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-30
Smart Images

Figure CN224424523U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-frequency welding machine technology, specifically a multi-functional clamping and fixing structure for a high-frequency welding machine converter. Background Technology
[0002] A high-frequency welding machine is a specialized piece of equipment that utilizes the skin effect and proximity effect of high-frequency current (typically 100-400kHz) to rapidly heat and weld metal workpieces. It is widely used for continuous welding of pipes and plates, and is particularly suitable for the efficient processing of metals such as stainless steel, carbon steel, copper, and aluminum.
[0003] For example, a multi-functional clamping and fixing structure for a high-frequency welding machine converter, with announcement number "CN221185052U", involves positioning the welding table on the same horizontal line as the corresponding clamping and fixing devices. The two ends of the converter circuit are inserted into the first clamping and fixing devices at both ends. Multiple sets of electric telescopic rods inside the first clamping and fixing devices press against the multiple sets of clamps towards the center, thus fixing the converter circuit. However, this device can only clamp one workpiece at a time, causing production line interruptions when changing workpieces. Furthermore, although the device is designed with two clamping methods, it is mainly suitable for clamping the two ends or sides of regularly shaped converter circuits. For irregularly shaped workpieces, the multiple sets of clamps or fixtures may not fit completely, resulting in insecure fixing or damage to the workpiece surface. Utility Model Content
[0004] The purpose of this utility model is to solve the problems of being able to clamp only one workpiece at a time, causing production line interruptions when changing workpieces, and the inability of the clamp to fully fit irregularly shaped workpieces, resulting in insecure fixation or damage to the workpiece surface. Therefore, a multi-functional clamping and fixing structure for a high-frequency welding machine converter is proposed.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A multi-functional clamping and fixing structure for a high-frequency welding machine converter is designed, including a worktable and a bending plate. The upper end of the worktable is fixedly connected to the bending plate. A translation structure is provided above the worktable. An electric telescopic rod is fixedly connected to the lower end of the bending plate. A sliding cylinder is fixedly connected to the output end of the electric telescopic rod. A first guide rod is fixedly connected to the upper end of the sliding cylinder. The other end of the first guide rod is fixedly connected to the bending plate.
[0007] Preferably, the lower end of the sliding cylinder is fixedly connected to an installation block, and a welding head is installed at the lower end of the installation block.
[0008] Preferably, the translation structure includes a vertical plate, the lower end of which is fixedly connected to the worktable, a second guide rod is fixedly connected to the inner side of the two vertical plates, the outer wall of the second guide rod is slidably connected to the slider, a straight plate is fixedly connected to the upper end of the slider, a horizontal plate is fixedly connected to the end of the vertical plate, the horizontal plate is inserted into a pin, and the pin is engaged with the straight plate.
[0009] Preferably, a clamping structure is provided above the straight plate.
[0010] Preferably, the clamping structure includes a housing, the lower end of which is fixedly connected to a straight plate, the inner wall of which is rotatably connected to a threaded rod via a bearing, the upper end of which is fixedly connected to a handle, the threaded rod being threadedly connected to a threaded block, the threaded block being slidably connected to the housing, the threaded block being inserted into a clamping plate, and both the threaded block and the clamping plate being threadedly connected to bolts.
[0011] Preferably, the lower end of the threaded rod is rotatably connected to the straight plate via a bearing.
[0012] The present invention proposes a multi-functional clamping and fixing structure for a high-frequency welding machine converter. The advantages are as follows: through the cooperation of the translation structure and the operator, the operator removes the pin and moves the clamping structure on the outside of the bent plate to the inside of the bent plate. The welded workpiece is then moved to the outside of the bent plate, the pin is inserted, and the straight plate is fixed. The next welding operation can then be carried out. At the same time, the welded workpiece is removed, and the workpiece to be welded is clamped to enable continuous welding and prevent interruptions caused by changing workpieces.
[0013] With the cooperation of the staff and the clamping structure, the corresponding clamping plate is inserted into the threaded block, and then the bolt is inserted to make the bolt threadedly connected to the clamping plate and the threaded block, thus completing the installation of the clamping plate. Rotating the handle causes the threaded rod to rotate, which in turn causes the threaded block to move, and the movement of the threaded block causes the clamping plate to move, so that the clamping plate is pressed against the workpiece, thus completing the fixation of the workpiece. The corresponding clamping plate can be replaced according to the shape of the workpiece to clamp workpieces of different shapes. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 for Figure 1 A front sectional view;
[0016] Figure 3 for Figure 2 Schematic diagram of part A in the middle;
[0017] Figure 4 for Figure 2 Schematic diagram of Part B;
[0018] Figure 5 for Figure 1 A partial right-side sectional view.
[0019] In the diagram: 1. Workbench; 2. Translation structure; 201. Vertical plate; 202. First guide rod; 203. Slider; 204. Straight plate; 205. Horizontal plate; 206. Pin; 3. Clamping structure; 301. Housing; 302. Threaded rod; 303. Handle; 304. Threaded block; 305. Clamping plate; 306. Bolt; 4. Bend plate; 5. Electric telescopic rod; 6. Sliding cylinder; 7. First guide rod; 8. Mounting block; 9. Welding head. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings:
[0021] See attached document Figure 1-5 :
[0022] In this embodiment, a multi-functional clamping and fixing structure for a high-frequency welding machine converter includes a workbench 1 and a curved plate 4. The upper end of the workbench 1 is fixedly connected to the curved plate 4. A translation structure 2 is provided above the workbench 1. An electric telescopic rod 5 is fixedly connected to the lower end of the curved plate 4. A sliding cylinder 6 is fixedly connected to the output end of the electric telescopic rod 5. Moving the output end of the electric telescopic rod 5 can drive the sliding cylinder 6 to move. A first guide rod 7 is fixedly connected to the upper end of the sliding cylinder 6. The other end of the first guide rod 7 is fixedly connected to the curved plate 4. An installation block 8 is fixedly connected to the lower end of the sliding cylinder 6. A welding head 9 is installed at the lower end of the installation block 8. The sliding cylinder 6 can drive the installation block 8 and the welding head 9 to move.
[0023] See attached document Figure 1-5 :
[0024] The translation structure 2 includes a vertical plate 201. The lower end of the vertical plate 201 is fixedly connected to the worktable 1. The inner sides of the two vertical plates 201 are fixedly connected to a second guide rod 202. The outer wall of the second guide rod 202 is slidably connected to a slider 203. The upper end of the slider 203 is fixedly connected to a straight plate 204. The end of the vertical plate 201 is fixedly connected to a horizontal plate 205. The horizontal plate 205 is inserted into a pin 206. The pin 206 is engaged with the straight plate 204. A clamping structure 3 is provided above the straight plate 204.
[0025] See attached document Figure 1-5 :
[0026] The clamping structure 3 includes a housing 301. The lower end of the housing 301 is fixedly connected to the straight plate 204. The inner wall of the housing 301 is rotatably connected to the threaded rod 302 via a bearing. The upper end of the threaded rod 302 is fixedly connected to a handle 303. Rotating the handle 303 can drive the threaded rod 302 to rotate. The threaded rod 302 is threadedly connected to a threaded block 304. The threaded block 304 is slidably connected to the housing 301. Rotating the threaded rod 302 can drive the threaded block 304 to move. The threaded block 304 is inserted into a clamping plate 305. Both the threaded block 304 and the clamping plate 305 are threadedly connected to bolts 306. The lower end of the threaded rod 302 is rotatably connected to the straight plate 204 via a bearing. Moving the threaded block 304 can drive the clamping plate 305 to move.
[0027] Working principle:
[0028] First, depending on the type of workpiece, insert the corresponding clamping plate 305 into the threaded block 304, and then insert the bolt 306 to make the bolt 306 threadedly connected to the clamping plate 305 and the threaded block 304, thus completing the installation of the clamping plate 305.
[0029] Clamping operation:
[0030] Place the workpieces under the two clamping plates 305 respectively, and make the ends of the two workpieces fit together. Then rotate the handle 303. The rotation of the handle 303 drives the threaded rod 302 to rotate. The rotation of the threaded rod 302 drives the threaded block 304 to move. The movement of the threaded block 304 drives the clamping plate 305 to move, so that the clamping plate 305 abuts against the workpiece, thus completing the fixation of the workpiece. In addition, during the welding work, the workpiece is fixed on another set of clamping structures 3 outside the bending plate 4 so as to carry out continuous welding work.
[0031] After fixing, start the electric telescopic rod 5. The electric telescopic rod 5 drives the sliding cylinder 6 to move, and at the same time drives the mounting block 8 and the welding head 9 to move. Start the sliding cylinder 6. The sliding cylinder 6 moves and drives the mounting block 8 and the welding head 9 to move. During welding, the position of the welding head 9 is continuously adjusted to weld the workpiece.
[0032] Material loading and unloading operations:
[0033] After welding is completed, the electric telescopic rod 5 and the sliding cylinder 6 are controlled to drive the welding head 9 back to the initial position. Then, the worker takes out the pin 206 and moves the clamping structure 3 on the outside of the bent plate 4 to the inside of the bent plate 4. The welded workpiece is moved to the outside of the bent plate 4, the pin 206 is inserted, and the straight plate 204 is fixed. The next welding work can then be carried out. At the same time, the welded workpiece is taken out and the workpiece to be welded is clamped to carry out continuous welding work.
[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.
Claims
1. A multi-functional clamping and fixing structure for a high-frequency welding machine converter, comprising a worktable (1) and a bending plate (4), wherein the upper end of the worktable (1) is fixedly connected to the bending plate (4), characterized in that: A translation structure (2) is provided above the workbench (1). An electric telescopic rod (5) is fixedly connected to the lower end of the bending plate (4). A sliding cylinder (6) is fixedly connected to the output end of the electric telescopic rod (5). A first guide rod (7) is fixedly connected to the upper end of the sliding cylinder (6). The other end of the first guide rod (7) is fixedly connected to the bending plate (4).
2. The multi-functional clamping and fixing structure for the high-frequency welding machine converter according to claim 1, characterized in that: The lower end of the sliding cylinder (6) is fixedly connected to a mounting block (8), and a welding head (9) is installed on the lower end of the mounting block (8).
3. The multi-functional clamping and fixing structure for the high-frequency welding machine converter according to claim 1, characterized in that: The translation structure (2) includes a vertical plate (201), the lower end of which is fixedly connected to the worktable (1). The inner sides of the two vertical plates (201) are fixedly connected to a second guide rod (202). The outer wall of the second guide rod (202) is slidably connected to a slider (203). The upper end of the slider (203) is fixedly connected to a straight plate (204). The end of the vertical plate (201) is fixedly connected to a horizontal plate (205). The horizontal plate (205) is inserted into a pin (206), and the pin (206) is engaged with the straight plate (204).
4. The multi-functional clamping and fixing structure for the high-frequency welding machine converter according to claim 3, characterized in that: A clamping structure (3) is provided above the straight plate (204).
5. The multi-functional clamping and fixing structure for the high-frequency welding machine converter according to claim 4, characterized in that: The clamping structure (3) includes a housing (301), the lower end of which is fixedly connected to a straight plate (204). The inner wall of the housing (301) is rotatably connected to a threaded rod (302) via a bearing. A handle (303) is fixedly connected to the upper end of the threaded rod (302). The threaded rod (302) is threadedly connected to a threaded block (304). The threaded block (304) is slidably connected to the housing (301). The threaded block (304) is inserted into a clamping plate (305). Both the threaded block (304) and the clamping plate (305) are threadedly connected to bolts (306).
6. The multi-functional clamping and fixing structure for a high-frequency welding machine converter according to claim 5, characterized in that: The lower end of the threaded rod (302) is rotatably connected to the straight plate (204) via a bearing.