Auxiliary clamp for mechanical welding

Abstract

The utility model relates to the technical field of mechanical welding. The mechanical welding auxiliary clamp comprises a main frame, gears are rotationally arranged on the two sides of the middle of the main frame through hollow bearings, and fastening screws are inserted into the middle threads of the gears in a penetrating mode; a limiting groove is formed in the outer surface of the middle of the clamping column, and a limiting plug pin is fixed to one side of the bottom end of the pulling plate. The main frame, the sliding groove, the moving piece, the first rack plate, the second rack plate, the fastening screw and the gear are used in cooperation, when a welding piece is clamped, especially for a small-size welding piece, the welding piece can be clamped more rapidly, the clamping stability of the device is better, and the device is not prone to falling off due to shaking or collision; through cooperative use of the moving part, the clamping column, the limiting groove, the fixing barrel, the pulling plate, the limiting plug pin and the reset spring, the clamping column can be rotated after the limiting plug pin is completely pulled out of the limiting groove, and therefore rotation of the welding part is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical welding technology; more specifically, it relates to a mechanical welding auxiliary fixture. Background Technology

[0002] Mechanical welding is an important technology in modern manufacturing, primarily used to join metal parts using heat or pressure. While the history of welding technology can be traced back to ancient times, modern mechanical welding technology has undergone numerous innovations and developments. During the welding process, high-energy sources such as electric arcs, lasers, and electron beams are typically used to heat the metal until it reaches a molten state, thereby achieving the joining of components.

[0003] Currently, existing mechanical welding auxiliary fixtures have the following problems in use: 1. When clamping welded parts, most methods use a single bolt to push the clamping plate for tightening. When the welded parts are small, the distance the clamping plate needs to move increases, requiring a longer time to rotate the bolt, which is very time-consuming and labor-intensive for workers. Moreover, if the bolt is accidentally touched and rotated during the process, the welded parts will loosen, resulting in weak stability of the device; 2. When the welded parts need to be rotated to weld other parts, ordinary fixtures are inconvenient to directly rotate and fix the welded parts. In most cases, the welded parts need to be removed and repositioned for clamping, which is not convenient to operate. Therefore, there is an urgent need for a mechanical welding auxiliary fixture to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mechanical welding auxiliary fixture to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a mechanical welding auxiliary fixture, comprising:

[0006] The main frame has a groove in the middle of its upper surface, and two sets of movable parts are slidably arranged inside the groove. The two sets of movable parts are symmetrically distributed. One set of movable parts has a first rack plate fixed on both sides, and the other set of movable parts has a second rack plate fixed on both sides. Gears are rotatably arranged on both sides of the middle of the main frame through hollow bearings, and fastening screws are inserted through the threads of the gears. One end of the fastening screw passes through the gear and is threaded to one side of the main frame.

[0007] A clamping post is rotatably inserted into the middle of the upper end of the movable part, and a handle is fixed to one end of the clamping post. An anti-slip pad is fixed to the other end of the clamping post. A limit groove is formed on the middle outer surface of the clamping post. A fixed cylinder is rotatably provided at the top of the movable part, and a pull plate is slidably inserted in the middle of the fixed cylinder. A return spring is fixed at the bottom end of the pull plate, and the top end of the return spring is fixedly connected to the top end of the inner wall of the fixed cylinder. A limit pin is fixed on one side of the bottom end of the pull plate.

[0008] Preferably, the lower end of the movable component is trapezoidal and slides inside the groove, with the two in close contact. The upper end of the movable component is cylindrical, and the clamping column is rotatably inserted into the middle of the upper end of the movable component, making the movement of the movable component more stable and providing support for the clamping column.

[0009] Preferably, the first rack plate, the second rack plate, and the gear are all provided in two sets. Each set of the first rack plate and each set of the second rack plate are respectively meshed with both sides of each set of gears, which lays the foundation for fixing the position of the two sets of moving parts.

[0010] Preferably, multiple sets of limiting grooves are provided, and the multiple sets of limiting grooves are equidistantly distributed on the middle outer surface of the clamping column in a circular axis array. The limiting grooves are adapted to the limiting pins, and one end of the limiting pin slides through the top of the moving part and is slidably inserted into the limiting groove, which facilitates fixing the angle of the welded part after rotation.

[0011] Preferably, the pull plate is L-shaped, and one end of the pull plate slides through the top of the fixed cylinder and is fixed with a handle for easy pulling up the pull plate.

[0012] Preferably, a square groove is provided on one side of the fixed cylinder to match the other end of the pull plate. The other end of the pull plate slides along the inside of the square groove, and the two are in close contact. The height of the square groove is greater than the length of the limiting pin, so that the pull plate can drive the limiting pin to move vertically upward, while ensuring that the bottom end of the limiting pin can smoothly reach the top of the moving part.

[0013] The technical effects and advantages of this utility model are as follows: This utility model uses the main frame, slide groove, moving parts, first rack plate, second rack plate, fastening screws and gears in cooperation. When clamping the welded parts, the two sets of moving parts can be moved directly to the center until the two sets of anti-slip pads are tightly against the two ends of the welded parts. Then, the fastening screws are rotated counterclockwise and inserted into the main frame and gears at the same time. The operation steps are simple and easy to understand. Especially for small welded parts, the clamping can be completed more quickly, thereby saving workers' time. The threaded fixation of the two sets of fastening screws makes the device clamping more stable and less likely to fall off due to shaking or collision.

[0014] By using the moving parts, clamping column, limiting groove, fixing cylinder, pull plate, limiting pin, and return spring in coordination, the clamping column can be rotated after the limiting pin is completely pulled out of the limiting groove, thereby realizing the rotation of the welded parts. No disassembly and reassembly is required, saving workers' time and effort, making the welding work smoother and more efficient. At the same time, when the limiting pin is inserted into the limiting groove, the current rotation angle of the welded parts can be fixed without manual support, providing a stable environment for the welding work. Attached Figure Description

[0015] Figure 1 This is a frontal three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a partially cut-out three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention.

[0018] Figure 4 This utility model Figure 3 A magnified three-dimensional structural diagram of A in the middle.

[0019] The attached diagram is labeled as follows: 1. Main frame; 2. Slide groove; 3. Moving part; 4. Clamping column; 5. Handle; 6. Anti-slip pad; 7. First rack plate; 8. Second rack plate; 9. Fastening screw; 10. Gear; 11. Limiting groove; 12. Fixing cylinder; 13. Pull plate; 14. Limiting pin; 15. Return spring. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The instrument placement rack involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] like Figures 1 to 2As shown, this embodiment proposes a mechanical welding auxiliary fixture, including a main frame 1. A groove 2 is formed in the middle of the upper surface of the main frame 1, and movable parts 3 are slidably arranged at both ends inside the groove 2. There are two sets of movable parts 3, which are symmetrically distributed. One set of movable parts 3 has a first rack plate 7 fixed on both sides, and the other set of movable parts 3 has a second rack plate 8 fixed on both sides. Gears 10 are rotatably arranged on both sides of the middle of the main frame 1 through hollow bearings, and the middle thread of the gears 10 is inserted through them. Fastening screw 9, one end of fastening screw 9 passes through gear 10 and is threaded to one side of main frame 1. The lower end of moving part 3 is set as trapezoidal and slides inside slide groove 2. The two are closely attached. The upper end of moving part 3 is set as cylindrical. Clamping column 4 is rotatably inserted in the middle of the upper end of moving part 3. The first rack plate 7, the second rack plate 8 and the gear 10 are all provided in two sets. Each set of first rack plate 7 and each set of second rack plate 8 are respectively meshed with the two sides of each set of gear 10.

[0023] In this embodiment, when clamping the welded part, the main frame 1 can be placed in a suitable position first, and then the welded part can be suspended between the two sets of moving parts 3. Then, the two sets of moving parts 3 can be slid directly along the inside of the slide groove 2. The two sets of moving parts 3 respectively drive the first rack plate 7 and the second rack plate 8 to move simultaneously. Under the meshing action of the first rack plate 7 and the second rack plate 8, the gear 10 will rotate counterclockwise until the moving parts 3 drive the clamping column 4, and the clamping column 4 drives the anti-slip pad 6 to move until the two sets of anti-slip pads 6 are tightly pressed against both sides of the welded part. Alternatively, the other set of moving parts 3 can be pushed only towards one set of moving parts 3. The meshing action of the first rack plate 7, the second rack plate 8, and the gear 10 can also enable the two sets of moving parts 3 to move simultaneously in the center. Then, the fastening screw 9 is rotated counterclockwise through the gear 10 and inserted into the main frame 1, so that the gear 10 will no longer rotate. Then the first rack plate 7 and the second rack plate 8 cannot mesh and move. Finally, the positions of the two sets of moving parts 3 are fixed. When disassembly is required, first rotate the fastening screw 9 clockwise. One end of the fastening screw 9 does not need to be completely separated from the inside of the gear 10, but only separated from the main frame 1. Then, move the two sets of moving parts 3 in the opposite direction along the inside of the slide groove 2, and then take out the welded parts.

[0024] Example 2

[0025] like Figure 1 , Figure 3 and Figure 4As shown, based on the same concept as the above embodiment, this embodiment also proposes: a clamping post 4 is rotatably inserted into the middle of the upper end of the moving part 3, and a handle 5 is fixed to one end of the clamping post 4, and an anti-slip pad 6 is fixed to the other end of the clamping post 4. A limit groove 11 is formed on the middle outer surface of the clamping post 4. A fixed cylinder 12 is rotatably provided at the top of the moving part 3, and a pull plate 13 is slidably inserted into the middle of the fixed cylinder 12. A return spring 15 is fixed at the bottom end of the pull plate 13, and the top end of the return spring 15 is fixedly connected to the top end of the inner wall of the fixed cylinder 12. A limit pin 14 is fixed on one side of the bottom end of the pull plate 13. Multiple sets of positioning grooves 11 are provided, and the multiple sets of positioning grooves 11 are equally distributed in a circular axis array on the middle outer surface of the clamping column 4. The positioning grooves 11 are adapted to the positioning pins 14. One end of the positioning pin 14 slides through the top of the moving part 3 and is slidably inserted into the positioning groove 11. The pull plate 13 is L-shaped, and one end of the pull plate 13 slides through the top of the fixed cylinder 12 and is fixed with a handle. A square groove adapted to the other end of the pull plate 13 is provided on one side of the fixed cylinder 12. The other end of the pull plate 13 slides along the inside of the square groove. The two are closely attached to each other. The height of the square groove is greater than the length of the positioning pin 14.

[0026] In this embodiment, when it is necessary to rotate the angle of the welded part, the pull plate 13 can be pulled up along the inside of the fixed cylinder 12 first, so that the return spring 15 is compressed by force. The pull plate 13 drives the limit pin 14 to move upward synchronously until the bottom end of the limit pin 14 exceeds the top surface of the moving part 3. Then, the fixed cylinder 12 can be rotated to rotate the pull plate 13 and the limit pin 14 synchronously. Then, the pull plate 13 is released, and the pull plate 13 is pushed down by the rebound of the return spring 15. The pull plate 13 drives the limit pin 14 to move down until the limit pin 14 moves downward. The bottom end of 14 is pressed tightly against the top surface of the moving part 3. At this time, the handle 5 can be held to rotate the clamping column 4. The anti-slip pad 6 rotates the welding part synchronously. After rotating to a suitable angle, the fixing cylinder 12 is rotated so that the bottom end of the limiting pin 14 is aligned with the upper part of the corresponding limiting groove 11. Under the continued rebound of the return spring 15, the pull plate 13 and the limiting pin 14 continue to move down until the bottom end of the limiting pin 14 slides into the limiting groove 11, which can prevent the clamping column 4 from rotating and finally achieve the fixation of the angle of the welding part.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mechanical welding auxiliary fixture, characterized in that, include: The main frame (1) has a groove (2) in the middle of its upper surface, and two movable parts (3) are slidably arranged inside the groove (2). There are two sets of movable parts (3), and the two sets of movable parts (3) are symmetrically distributed. One set of movable parts (3) has a first rack plate (7) fixed on both sides, and the other set of movable parts (3) has a second rack plate (8) fixed on both sides. The main frame (1) has a gear (10) rotatably arranged on both sides of the middle through hollow bearings, and a fastening screw (9) is inserted through the middle thread of the gear (10). One end of the fastening screw (9) passes through the gear (10) and is threadedly connected to one side of the main frame (1). A clamping post (4) is rotatably inserted into the middle of the upper end of the movable part (3), and a handle (5) is fixed at one end of the clamping post (4). An anti-slip pad (6) is fixed at the other end of the clamping post (4). A limiting groove (11) is opened on the middle outer surface of the clamping post (4). A fixed cylinder (12) is rotatably provided at the top of the movable part (3), and a pull plate (13) is slidably inserted in the middle of the fixed cylinder (12). A return spring (15) is fixed at the bottom end of the pull plate (13), and the top end of the return spring (15) is fixedly connected to the top end of the inner wall of the fixed cylinder (12). A limiting pin (14) is fixed on one side of the bottom end of the pull plate (13).

2. The mechanical welding auxiliary fixture according to claim 1, characterized in that: The lower end of the movable part (3) is set in a trapezoidal shape, and the lower end of the movable part (3) slides inside the slide groove (2) with the two closely attached. The upper end of the movable part (3) is set in a cylindrical shape, and the clamping column (4) is rotatably inserted in the middle of the upper end of the movable part (3).

3. The mechanical welding auxiliary fixture according to claim 1, characterized in that: The first rack plate (7), the second rack plate (8) and the gear (10) are each provided in two sets, and the first rack plate (7) and the second rack plate (8) of each set are respectively meshed with the two sides of the gear (10).

4. The mechanical welding auxiliary fixture according to claim 1, characterized in that: The limiting groove (11) has multiple sets, and the multiple sets of the limiting groove (11) are equidistantly distributed in a circular axis array on the middle outer surface of the clamping column (4). The limiting groove (11) is adapted to the limiting pin (14), and one end of the limiting pin (14) slides through the top of the moving part (3) and is slidably inserted into the limiting groove (11).

5. The mechanical welding auxiliary fixture according to claim 1, characterized in that: The pull plate (13) is L-shaped, and one end of the pull plate (13) slides through the top of the fixed cylinder (12) and is fixed with a handle.

6. The mechanical welding auxiliary fixture according to claim 1, characterized in that: The fixed cylinder (12) has a square groove on one side that matches the other end of the pull plate (13). The other end of the pull plate (13) slides along the inside of the square groove, and the two are closely attached to each other. The height of the square groove is greater than the length of the limiting pin (14).

Images