Multifunctional fixing clamp for welding
By designing a multi-functional welding fixture with a self-locking mechanism that utilizes the meshing relationship between a toothed plate and gears, the problem of manually tightening bolts required by traditional welding fixtures is solved, enabling automatic fixing of welding items and improving welding efficiency.
Patent Information
- Application Number
- CN202520459805.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing welding fixtures require tools to tighten bolts when fixing items to be welded, which reduces welding efficiency.
A multifunctional fixing clamp was designed. Through the self-locking mechanism, the meshing relationship between the toothed plate and the gears is used to convert the downward pressure into rotational power, thereby achieving automatic fixing of the welded items and avoiding the traditional step of manually tightening bolts.
It improves welding efficiency, simplifies the process of fixing welded items, reduces operating steps, and increases work efficiency.
Smart Images

Figure CN223863193U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of clamping technology, specifically a multifunctional fixing clamp for welding. Background Technology
[0002] A fixture is a device used in mechanical manufacturing to fix a workpiece in the correct position for construction or inspection. It is also called a clamp. In a broader sense, any device used to quickly, conveniently and safely install a workpiece in any step of the process can be called a fixture. Therefore, fixtures are used in many fields. For example, welding fixtures are used in welding work.
[0003] Currently, existing welding fixtures require tools to tighten bolts to secure the welded items, which significantly reduces welding efficiency and is therefore inconvenient to use.
[0004] Therefore, those skilled in the art have provided a multifunctional fixing fixture for welding to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to provide a multifunctional fixing clamp for welding to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A multifunctional fixing fixture for welding includes a rectangular box, and a self-locking mechanism is provided on the top of the rectangular box;
[0008] The self-locking mechanism includes a partition plate. A positioning shaft is slidably connected inside the partition plate. A first threaded shaft is threadedly connected to the inner wall of the positioning shaft. A support plate is fixedly connected to the bottom end of the first threaded shaft. A placement plate is fixedly connected to the top end of the positioning shaft. Two sets of first toothed plates are fixedly connected to the outer surface of the placement plate, with two first toothed plates in each set. The outer surface of each first toothed plate is slidably connected to the interior of a rectangular box. Four sets of rotating shafts are rotatably connected to the inner wall of the rectangular box, with two rotating shafts in each set. A first gear is fixedly connected to the outer surface of each rotating shaft. The outer surfaces of every two first gears mesh with each other. The outer surfaces of two sets of first gears mesh with the outer surfaces of two sets of first toothed plates. A second gear is fixedly connected to the end of each of the other two sets of first gears furthest from the placement plate. The outer surface of each second gear meshes with a... The second toothed plate has a second threaded shaft threaded to its inner wall, and a positioning plate rotatably connected to the outer surface of each second threaded shaft. The outer surface of the rectangular box has two sets of T-shaped grooves, with two T-shaped grooves in each set. A T-shaped slider is slidably connected inside each T-shaped groove. The side of each T-shaped slider away from the placement plate is fixedly connected to the side of the second toothed plate near the placement plate. The outer surface of the rectangular box has two sets of rectangular blocks fixedly connected, with two rectangular blocks in each set. A short shaft is rotatably connected to the inner wall of each rectangular block, and a baffle is fixedly connected to the outer surface of each short shaft. A force spring is fixedly connected to the inner wall of each rectangular block, and a limit block is fixedly connected to the end of each force spring away from the placement plate. The outer surface of each limit block is slidably connected to the interior of the rectangular block.
[0009] As a further improvement of this utility model: two reset springs are fixedly connected to the bottom surface of the placement plate, and the bottom end of each reset spring is fixedly connected to the upper surface of the partition.
[0010] As a further improvement of this utility model: a positioning block is fixedly connected to one side of each of the first toothed plates near the second toothed plate, and two sets of positioning grooves are opened on the upper surface of the rectangular box, with two positioning grooves in each case, and the outer surface of each positioning block is slidably connected to the inside of the positioning groove.
[0011] As a further improvement of this utility model: the inner wall of the rectangular box is rotatably connected to a limiting shaft, and the left end of the limiting shaft is fixedly connected to a limiting plate.
[0012] As a further improvement of this utility model: a disassembly plate is snapped into the inside of the rectangular box, and the left side of the disassembly plate is in contact with the right side of the limiting plate.
[0013] As a further improvement of this utility model: a locking block is fixedly connected to the right side of the disassembly plate, and a locking groove is opened on the left side of the rectangular box, with the outer surface of the locking block engaging with the inside of the locking groove.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention features a placement plate. When the workpiece to be welded is placed on the upper surface of the placement plate and downward pressure is applied, the workpiece pushes the placement plate and a first toothed plate fixed to the surface of the placement plate downward. Utilizing the meshing relationship between the first toothed plate and a first gear, the first gear can be driven to rotate counterclockwise, thus converting the downward pressure into rotational power. The first gear in contact with the first toothed plate will transmit power to another adjacent first gear through meshing, causing the adjacent first gear and a second gear fixed at one end of the first gear to rotate clockwise. Then, utilizing the meshing relationship between the clockwise rotating second gear and the second toothed plate, the second toothed plate can be pushed downward, thereby causing the positioning plate to press and fix the workpiece to be welded on the surface of the placement plate. This effectively secures the workpiece to be welded, thus avoiding the problem of inconvenience in clamping and fixing the workpiece during equipment use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a multifunctional fixing clamp for welding.
[0017] Figure 2 A schematic diagram of the three-dimensional structure of the second toothed plate in a multifunctional fixing fixture for welding.
[0018] Figure 3 A schematic diagram of the three-dimensional structure of the first toothed plate in a multifunctional fixing fixture for welding.
[0019] Figure 4 A schematic diagram of the three-dimensional structure of the first gear in a multifunctional fixing fixture for welding.
[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the second gear in a multifunctional fixing fixture for welding.
[0021] In the diagram: 1. Rectangular box; 2. Self-locking mechanism; 201. Placement plate; 202. Positioning plate; 203. Second threaded shaft; 204. Second toothed plate; 205. Second gear; 206. Rectangular block; 207. First toothed plate; 208. T-shaped slider; 209. T-shaped groove; 210. Positioning shaft; 211. First threaded shaft; 212. Partition plate; 213. Support plate; 214. First gear; 215. Rotating shaft; 216. Baffle plate; 217. Short shaft; 218. Limiting block; 219. Force-bearing spring; 3. Reset spring; 4. Disassembly plate; 5. Limiting plate; 6. Positioning block; 7. Limiting shaft; 8. Slot; 9. Locking block; 10. Positioning groove. Detailed Implementation
[0022] Please see Figure 1-5 A multifunctional fixing fixture for welding includes a rectangular box 1. A self-locking mechanism 2 is provided on the top of the rectangular box 1. The self-locking mechanism 2 includes a partition 212. A positioning shaft 210 is slidably connected inside the partition 212. A first threaded shaft 211 is threadedly connected to the inner wall of the positioning shaft 210. A support plate 213 is fixedly connected to the bottom end of the first threaded shaft 211. A placement plate 201 is fixedly connected to the top end of the positioning shaft 210. Two return springs 3 are fixedly connected to the bottom surface of the placement plate 201. The bottom end of each return spring 3 is fixedly connected to the upper surface of the partition 212. By providing return springs 3, when it is necessary to disassemble the welded item, the return springs 3 can push the placement plate 201 to reset.
[0023] Two sets of first toothed plates 207 are fixedly connected to the outer surface of the placement plate 201. Each set of first toothed plates 207 consists of two plates. The outer surface of each first toothed plate 207 is slidably connected to the interior of the rectangular box 1. Four sets of rotating shafts 215 are rotatably connected to the inner wall of the rectangular box 1. Each set of rotating shafts 215 consists of two shafts. The outer surface of each rotating shaft 215 is fixedly connected to a first gear 214. The outer surfaces of every two first gears 214 mesh with each other. The outer surfaces of two sets of first gears 214 mesh with the outer surfaces of two sets of first toothed plates 207, while the other two sets of first gears 214 are away from each other. One end of each placement plate 201 is fixedly connected to a second gear 205. The outer surface of each second gear 205 is meshed with a second toothed plate 204. A positioning block 6 is fixedly connected to one side of each first toothed plate 207 near the second toothed plate 204. Two sets of positioning grooves 10 are provided on the upper surface of the rectangular box 1. There are two positioning grooves 10 in each set. The outer surface of each positioning block 6 is slidably connected to the inside of the positioning groove 10. By using the positioning block 6 and the positioning groove 10, and by utilizing the characteristic of the positioning block 6 sliding inside the positioning groove 10, the movement position of the first toothed plate 207 can be limited.
[0024] Each second toothed plate 204 has a second threaded shaft 203 threaded to its inner wall, and a positioning plate 202 rotatably connected to the outer surface of each second threaded shaft 203. The outer surface of the rectangular box 1 has two sets of T-shaped grooves 209, with two T-shaped grooves 209 in each set. Each T-shaped groove 209 has a T-shaped slider 208 slidably connected inside it. The side of each T-shaped slider 208 away from the placement plate 201 is fixedly connected to the side of the second toothed plate 204 close to the placement plate 201. The inner wall of the rectangular box 1 is rotatably connected to a limiting shaft 7, and the left end of the limiting shaft 7 is fixedly connected to a limiting plate 5. By setting the limiting shaft 7 and the limiting plate 5, the rotation of the limiting shaft 7 can drive the limiting plate 5 to rotate, thereby limiting the position of the detachable item.
[0025] Two sets of rectangular blocks 206 are fixedly connected to the outer surface of the rectangular box 1. Each set of rectangular blocks 206 consists of two blocks. The inner wall of each rectangular block 206 is rotatably connected to a short shaft 217. The outer surface of each short shaft 217 is fixedly connected to a baffle 216. The inner wall of each rectangular block 206 is fixedly connected to a force spring 219. The end of each force spring 219 away from the placement plate 201 is fixedly connected to a limit block 218. A disassembly plate 4 is snapped into the inside of the rectangular box 1. The left side of the disassembly plate 4 contacts the right side of the limit plate 5. By setting the disassembly plate 4, the disassembly plate 4 can be removed to operate the equipment inside the rectangular box 1.
[0026] The outer surface of each limiting block 218 is slidably connected to the inside of the rectangular block 206. The right side of the disassembly plate 4 is fixedly connected to the locking block 9. The left side of the rectangular box 1 is provided with a locking groove 8. The outer surface of the locking block 9 is locked into the inside of the locking groove 8. By setting the locking block 9 and using the locking relationship between the locking block 9 and the locking groove 8, the disassembly plate 4 can be fixed in a suitable position inside the rectangular box 1.
[0027] The working principle of this utility model is as follows: During use, the item to be welded is placed on the upper surface of the placement plate 201 and downward pressure is applied. The item will push the placement plate 201 and the first toothed plate 207 fixed to the surface of the placement plate 201 downwards. Utilizing the meshing relationship between the first toothed plate 207 and the first gear 214, the first gear 214 can be driven to rotate counterclockwise, thus converting the downward pressure into rotational power. The first gear 214 in contact with the first toothed plate 207 will transmit the power to the adjacent first gear 214 through the meshing relationship, causing the adjacent first gear 214 and the second gear 205 fixed at one end of the first gear 214 to rotate clockwise. Then, the clockwise rotation... The meshing relationship between the second gear 205 and the second gear plate 204 can push the second gear plate 204 downward, thereby causing the positioning plate 202 to press and fix the items to be welded placed on the surface of the placement plate 201. It is important to understand that the first gear plate 207 and the first gear 214 have the same number of teeth, and the second gear 205 and the second gear plate 204 also have the same number of teeth. However, the number of teeth on the surface of the second gear 205 is twice the number of teeth on the surface of the first gear 214. Therefore, when the first gear plate 207 descends with the placement plate 201, the total descent height of the second gear plate 204 is always twice that of the first gear plate 207. Furthermore, when the second gear 205 rotates, due to limited... The baffle 216 cannot rotate to the right due to the limiting position of the positioning block 218. Therefore, the baffle 216 can only rotate the second gear 205 clockwise, preventing it from rotating counterclockwise. This further prevents the second gear plate 204 from moving upward. At this time, the workpiece to be welded can be limited from above. However, the placement plate 201, which is in contact with the bottom surface of the workpiece to be welded, has not yet moved to the bottom. Therefore, the placement plate 201 may still move downward. At this time, the disassembly plate 4 needs to be disassembled, and rotational power is applied to the support plate 213. By utilizing the threaded connection between the first threaded shaft 211 and the positioning shaft 210 on the upper surface of the support plate 213, the support plate 213 can be moved downward until the support plate 213 is fully supported. The plate 213 contacts the ground, thus limiting the placement plate 201 and preventing it from moving downwards. This allows for the fixation of the items to be welded. When the welded items need to be removed, the limiting block 218 is pressed, so that the limiting block 218 is not on the left side of the baffle 216. This releases the limitation on the baffle 216 and the second gear 205, allowing the second gear 205 to rotate counterclockwise. Furthermore, the second gear plate 204 can move upwards, thus releasing the limitation on the welded items. When welding the same type of items, it is not necessary to readjust the position of the support plate 213, effectively avoiding the problem of inconvenience in clamping and fixing the welded items during equipment use.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multifunctional fixing clamp for welding, comprising a rectangular box (1), characterized in that: A self-locking mechanism (2) is provided on the top of the rectangular box (1); The self-locking mechanism (2) includes a partition (212), a positioning shaft (210) is slidably connected inside the partition (212), a first threaded shaft (211) is threadedly connected to the inner wall of the positioning shaft (210), a support plate (213) is fixedly connected to the bottom end of the first threaded shaft (211), a placement plate (201) is fixedly connected to the top end of the positioning shaft (210), and two sets of first toothed plates (207) are fixedly connected to the outer surface of the placement plate (201). Each set of first toothed plates (207) consists of two plates, and the outer surface of each first toothed plate (207) is slidably connected to a rectangular box (1). Inside the rectangular box (1), four sets of rotating shafts (215) are rotatably connected to the inner wall. Each set of rotating shafts (215) consists of two shafts. The outer surface of each rotating shaft (215) is fixedly connected to a first gear (214). The outer surfaces of every two first gears (214) mesh with each other. The outer surfaces of two sets of first gears (214) mesh with the outer surfaces of two sets of first tooth plates (207). The other two sets of first gears (214) are fixedly connected to a second gear (205) at the end away from the placement plate (201). The outer surface of each second gear (205) meshes with a second tooth. The inner wall of each second toothed plate (204) is threaded with a second threaded shaft (203), and the outer surface of each second threaded shaft (203) is rotatably connected with a positioning plate (202). The outer surface of the rectangular box (1) is provided with two sets of T-shaped grooves (209), each set containing two T-shaped grooves (209). Each T-shaped groove (209) is slidably connected with a T-shaped slider (208). The side of each T-shaped slider (208) away from the placement plate (201) is fixedly connected to the side of the second toothed plate (204) near the placement plate (201). Two sets of rectangular blocks (206) are fixedly connected to the outer surface of the rectangular box (1). Each set of rectangular blocks (206) consists of two blocks. A short shaft (217) is rotatably connected to the inner wall of each rectangular block (206). A baffle (216) is fixedly connected to the outer surface of each short shaft (217). A force spring (219) is fixedly connected to the inner wall of each rectangular block (206). A limit block (218) is fixedly connected to the end of each force spring (219) away from the placement plate (201). The outer surface of each limit block (218) is slidably connected to the inside of the rectangular block (206).
2. The multifunctional fixing clamp for welding according to claim 1, characterized in that: Two return springs (3) are fixedly connected to the bottom surface of the placement plate (201), and the bottom end of each return spring (3) is fixedly connected to the upper surface of the partition plate (212).
3. The multifunctional fixing clamp for welding according to claim 1, characterized in that: Each of the first toothed plates (207) has a positioning block (6) fixedly connected to one side of the first toothed plate (204). The upper surface of the rectangular box (1) is provided with two sets of positioning grooves (10). The number of each positioning groove (10) is two. The outer surface of each positioning block (6) is slidably connected to the inside of the positioning groove (10).
4. A multifunctional fixing clamp for welding according to claim 1, characterized in that: The inner wall of the rectangular box (1) is rotatably connected to a limiting shaft (7), and the left end of the limiting shaft (7) is fixedly connected to a limiting plate (5).
5. A multifunctional fixing clamp for welding according to claim 4, characterized in that: The rectangular box (1) is fitted with a disassembly plate (4), and the left side of the disassembly plate (4) is in contact with the right side of the limiting plate (5).
6. A multifunctional fixing clamp for welding according to claim 5, characterized in that: The right side of the disassembly plate (4) is fixedly connected to a locking block (9), and the left side of the rectangular box (1) is provided with a slot (8). The outer surface of the locking block (9) is engaged with the inside of the slot (8).