Special welding fixture for precision parts

Abstract

The welding fixture special for the precision parts comprises a workbench, a fixing groove is formed in the top end of the workbench, a threaded rod is rotationally connected between the left inner wall and the right inner wall of the fixing groove, and a motor corresponding to the threaded rod in position is fixedly connected to the side wall of one side of the workbench; the end, close to the motor, of the threaded rod penetrates through the inner side wall of the fixing groove and extends to the outer side of the workbench, the end, located on the outer side of the workbench, of the fixing groove is fixedly connected with the output end of the motor, the threaded rod is sleeved with a threaded block in a threaded mode, and the side wall of the threaded block is slidably connected with the inner side wall of the fixing groove. The fixing clamping plate moves to clamp a part through the threaded rod, the clamping side plate is further arranged to improve the fixing and clamping effect, meanwhile, the connecting supporting plate is used for limiting the position of the part, it is guaranteed that the welding position can be aligned, the fixing clamping plate and the part can rotate along with welding, the part does not need to be disassembled, and welding is facilitated.

Description

Technical Field

[0001] The invention relates to the field of welding fixtures, and in particular to a special welding fixture for precision parts. Background Art

[0002] Welding is a common processing method for connecting two or more parts into one component. The resulting component usually has high strength in all directions. During the application of parts, in order to make the size of the parts suitable for the required environment, it is sometimes necessary to weld the same parts together.

[0003] During use, the existing welding fixture has certain deficiencies in the clamping effect of the parts, which is not conducive to the fixation of the parts. When welding the parts, the entire welding seam needs to be welded, and welding requires the parts to be rotated a circle. The existing clamping device cannot rotate, so the parts need to be removed and re-fixed after rotation, which is not conducive to the smooth progress of welding. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, such as: there are certain deficiencies in the clamping effect of parts, which is not conducive to the fixation of parts and the inability to rotate. Therefore, the parts need to be removed and re-fixed after rotation, which is not conducive to the smooth progress of welding. A special welding fixture for precision parts is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] 4. The repairing kit for automotive dents, according to claim 1, wherein the tool holder is an upper surface and the lower surface of the foot stand comprises a through-hole, and the through-hole comprises a screw threaded connector, and the two foot pieces comprise a through-hole, a screw threaded connector, and a screw threaded connector.

[0007] Preferably, the auxiliary structure includes a connecting rod fixedly connected to the side wall of the connecting plate, and the connecting rod is arranged at the center of the side wall of the connecting plate, a connecting cavity is opened inside each of the connecting rods, and a moving block is slidably connected between the inner walls of each of the connecting cavities, and each of the moving blocks is fixedly connected to a fixing rod at one end close to the fixed splint, and each of the fixing rods passes through the inner wall of the corresponding connecting cavity and extends to the outside of the connecting rod, and each of the fixing rods is fixedly connected to the side wall of the corresponding fixed splint at one end located on the outside of the connecting rod, and each of the fixing rods is fixedly connected to the side wall of the corresponding fixed splint at one end, and each of the moving blocks is fixedly connected to a connecting spring at one end away from the fixing rod, and each of the connecting springs is fixedly connected to the inner wall of the corresponding connecting cavity at one end away from the moving block.

[0008] Preferably, each of the fixed splints is provided with mounting grooves on the front and rear side walls, and a mounting shaft is rotatably connected between the upper and lower inner walls of each mounting groove, and each mounting shaft is fixedly sleeved with a clamping side plate, and each of the upper and lower inner walls of the mounting groove is fixedly connected with a torsion spring, each of the torsion springs is respectively sleeved on the outer side of the corresponding mounting shaft, and the end of each torsion spring is respectively fixedly connected to the corresponding clamping side plate, and fixed grooves are provided on the side walls of each of the clamping side plate and the fixed splint.

[0009] Preferably, a connecting groove is provided at the bottom end of each of the connecting plates, a connecting shaft is rotatably connected between the front and rear inner walls of each of the connecting grooves, a connecting support plate is fixedly sleeved on each of the connecting shafts, and the length of the connecting support plate corresponds to the fixed clamping plate, a damping ring is rotatably sleeved on each of the connecting shafts, and the damping ring is fixedly connected to the inner wall of the connecting groove, one end of each of the connecting shafts passes through the inner wall of the corresponding connecting groove and extends to the outside of the connecting plate, and one end of each of the connecting shafts located on the outside of the connecting plate is fixedly connected to an adjustment block.

[0010] Preferably, a rotating rod is fixedly connected to the side wall of one of the rotating blocks, the rotating rod passes through the corresponding fixed plate, and one end of the rotating rod located outside the fixed plate is fixedly connected to the rotating block.

[0011] Preferably, a controller matching the motor is provided on the workbench.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the fixed clamping plate moves to clamp the parts through the threaded rod, and a clamping side plate is also provided to improve the fixed clamping effect. At the same time, the position of the parts is limited by the connecting support plate to ensure that the welding points of the parts can be aligned, which is beneficial to the welding process. Moreover, during the welding process, the fixed clamping plate and the parts can be rotated as the welding progresses, so that the entire part can be welded without removing the parts, which is beneficial to the smooth progress of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of a special welding fixture for precision parts proposed by the present invention; Figure 2 This is a side view of a three-dimensional structure diagram of a special welding fixture for precision parts proposed by the present invention; Figure 3 for Figure 2 The enlarged view of point A in the middle; Figure 4 This is a schematic structural diagram of a special welding fixture for precision parts proposed by the present invention.

[0017] In the figure: 1 workbench, 2 fixed groove, 3 threaded rod, 4 threaded block, 5 fixed plate, 6 rotating block, 7 connecting plate, 8 connecting groove, 9 connecting shaft, 10 connecting support plate, 11 connecting rod, 12 fixed rod, 13 fixed clamping plate, 14 mounting groove, 15 mounting shaft, 16 clamping side plate, 17 torsion spring, 18 connecting cavity, 19 moving block, 20 connecting spring, 21 rotating rod, 22 rotating block, 23 motor, 24 adjusting block. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Reference Figure 1-Figure 4A special welding fixture for precision parts includes a workbench 1, a fixing groove 2 is opened at the top of the workbench 1, a threaded rod 3 is rotatably connected between the left and right inner walls of the fixing groove 2, a motor 23 corresponding to the position of the threaded rod 3 is fixedly connected to one side wall of the workbench 1, the end of the threaded rod 3 close to the motor 23 passes through the inner wall of the fixing groove 2 and extends to the outside of the workbench 1, and the end of the fixing groove 2 located on the outside of the workbench 1 is fixedly connected to the output end of the motor 23, a threaded block 4 is threadedly sleeved on the threaded rod 3, and the side wall of the threaded block 4 is slidably connected to the inner wall of the fixing groove 2, the threads on the left and right sides of the threaded rod 3 are oppositely arranged, and the opposite threads make the movement direction of the threaded block 4 threadedly sleeved on the threaded rod 3 always remain in the opposite state when the threaded rod 3 rotates, and each thread block The top of the pattern block 4 is fixedly connected with a fixed plate 5, and one side of each fixed plate 5 is rotatably connected with a rotating block 6. The end of each rotating block 6 away from the fixed plate 5 is fixedly connected with a connecting plate 7. A fixed clamping plate 13 is arranged on the side of each connecting plate 7 away from the rotating block 6. An auxiliary structure is arranged on each connecting plate 7. The parts to be welded are arranged between the two fixed clamping plates 13, and the motor 23 is started. After the motor 23 is started, its output end drives the threaded rod 3 to rotate. Since the threaded block 4 cannot rotate, the rotation of the threaded rod 3 will move the threaded block 4, so that the fixed plate 5 fixedly connected to the threaded block 4 moves accordingly. The fixed plates 5 are close to each other, so that the connecting plate 7 and the fixed clamping plate 13 also move in a direction close to each other, clamping the parts for welding.

[0020] The auxiliary structure includes a connecting rod 11 fixedly connected to the side wall of the connecting plate 7, and the connecting rod 11 is arranged at the center of the side wall of the connecting plate 7. A connecting cavity 18 is opened inside each connecting rod 11, and a moving block 19 is slidably connected between the inner walls of each connecting cavity 18. A fixed rod 12 is fixedly connected to one end of each moving block 19 close to the fixed clamping plate 13. Each fixed rod 12 passes through the inner wall of the corresponding connecting cavity 18 and extends to the outside of the connecting rod 11. The end of each fixed rod 12 located on the outside of the connecting rod 11 is respectively connected to the corresponding The side wall of the corresponding fixed clamping plate 13 is fixedly connected, and one end of each moving block 19 away from the fixed rod 12 is fixedly connected with a connecting spring 20, and one end of each connecting spring 20 away from the moving block 19 is respectively fixedly connected to the inner wall of the corresponding connecting cavity 18. In the process of the fixed clamping plate 13 moving to fix and clamp the parts, the fixed clamping plate 13 first contacts the parts, and as the threaded block 4 moves, the fixed rod 12 and the moving block 19 slide on the inner side of the connecting cavity 18, and the connecting spring 20 contracts to provide clamping force while avoiding damage to the parts;

[0021] The front and rear side walls of each fixed clamping plate 13 are provided with mounting grooves 14, and the upper and lower inner walls of each mounting groove 14 are rotatably connected with a mounting shaft 15, and each mounting shaft 15 is fixedly sleeved with a clamping side plate 16, and the upper and lower inner walls of each mounting groove 14 are fixedly connected with a torsion spring 17, and each torsion spring 17 is respectively sleeved on the outer side of the corresponding mounting shaft 15, and the end of each torsion spring 17 is respectively fixedly connected to the corresponding clamping side plate 16, and each clamping side plate 16 and the side wall of the fixed clamping plate 13 are provided with fixed grooves. After the parts are set between the fixed clamping plates 13, the elastic force of the torsion spring 17 makes the clamping side plate 16 clamp the side wall of the parts, and as the fixed clamping plate 13 moves, the clamping side plate 16 rotates outward, the degree of deformation of the torsion spring 17 increases, and its clamping effect on the parts is also improved accordingly;

[0022] A connecting groove 8 is provided at the bottom end of each connecting plate 7, and a connecting shaft 9 is rotatably connected between the front and rear inner walls of each connecting groove 8. A connecting support plate 10 is fixedly sleeved on each connecting shaft 9, and the length of the connecting support plate 10 corresponds to the fixed clamping plate 13. The connecting support plate 10 can be rotated to be perpendicular to the connecting plate 7 at most. A damping ring is rotatably sleeved on each connecting shaft 9, and the damping ring is fixedly connected to the inner side wall of the connecting groove 8. One end of each connecting shaft 9 passes through the inner side wall of the corresponding connecting groove 8 and extends to the outer side of the connecting plate 7. An adjusting block 24 is fixedly connected to one end of each connecting shaft 9 located on the outer side of the connecting plate 7. The adjusting block 24 is rotated to rotate the connecting support plate 10 upward so that the connecting support plate 10 and the connecting plate 7 are perpendicular to each other. At this time, the connecting support plate 10 plays the role of limiting and positioning. The bottom end of the part is located on the connecting support plate 10, so that the welding points of the two parts can be better aligned to facilitate welding.

[0023] A rotating rod 21 is fixedly connected to the side wall of one of the rotating blocks 6. The rotating rod 21 passes through the corresponding fixed plate 5, and one end of the rotating rod 21 located on the outer side of the fixed plate 5 is fixedly connected to a rotating block 22. Rotating the rotating block 22 can rotate the rotating rod 21. When the rotating rod 21 rotates, it will drive the rotating block 6 to rotate, thereby rotating the connecting plate 7 and the fixed splint 13, and the parts clamped by the fixed splint 13 also rotate, so that the welding of the entire part can be completed by rotating the parts one circle; a controller matching the motor 23 is provided on the workbench 1, and the controller and the motor 23 are both existing technologies. The start and stop of the motor 23 can be controlled by the controller.

[0024] In the present invention, when the device is in use, the adjusting block 24 is first rotated to rotate the connecting support plate 10 upward so that the connecting support plate 10 and the connecting plate 7 are perpendicular to each other. At this time, the connecting support plate 10 plays a role of limiting and positioning. Then the parts are set between the fixing clamps 13, and the bottom ends of the parts are located on the connecting support plate 10, so that the welding points of the two parts can be better aligned to facilitate welding. Then the motor 23 is started. After the motor 23 is started, its output end drives the threaded rod 3 to rotate. Since the threaded block 4 cannot rotate, the rotation of the threaded rod 3 will cause the threaded block 4 to move, so that the fixing plate 5 fixedly connected to the threaded block 4 moves accordingly. The fixing plates 5 approach each other, so that the connecting plate 7 and the fixing clamp 13 also move in a direction close to each other, clamping the parts for the convenience of welding. At the same time, when the fixing clamp 13 moves, the clamping side plate 16 first engages with the parts. The torsion spring 17 is in contact with and squeezed with each other, and the elastic force of the torsion spring 17 makes the clamping side plate 16 clamp the side wall of the part. As the fixed clamping plate 13 moves, the clamping side plate 16 rotates outward, the degree of deformation of the torsion spring 17 increases, and the clamping effect of the part is also improved accordingly. In the process of the fixed clamping plate 13 moving to fix and clamp the part, the fixed clamping plate 13 first contacts the part, and as the threaded block 4 moves, the fixed rod 12 and the moving block 19 slide on the inner side of the connecting cavity 18, and the connecting spring 20 contracts to provide clamping force while avoiding damage to the components. During the welding process, the rotating block 22 is manually rotated to rotate the rotating rod 21. When the rotating rod 21 rotates, it will drive the rotating block 6 to rotate, thereby rotating the connecting plate 7 and the fixed clamping plate 13, so that the part clamped by the fixed clamping plate 13 also rotates, so that the welding of the entire part can be completed by rotating the part one circle.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A welding fixture for precision parts, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a fixing groove (2), and a threaded rod (3) is rotatably connected between the left and right inner walls of the fixing groove (2). A motor (23) corresponding to the position of the threaded rod (3) is fixedly connected to a side wall of one side of the workbench (1), and one end of the threaded rod (3) close to the motor (23) passes through the inner wall of the fixing groove (2) and extends to the outside of the workbench (1), and the end of the fixing groove (2) located on the outside of the workbench (1) is fixedly connected to the output end of the motor (23), and a threaded block (4) is threadedly sleeved on the threaded rod (3). ), and the side wall of the threaded block (4) is slidably connected to the inner side wall of the fixed groove (2), the threads on the left and right sides of the threaded rod (3) are arranged oppositely, the top of each threaded block (4) is fixedly connected to a fixed plate (5), one side of each fixed plate (5) is rotatably connected to a rotating block (6), one end of each rotating block (6) away from the fixed plate (5) is fixedly connected to a connecting plate (7), one side of each connecting plate (7) away from the rotating block (6) is provided with a fixed clamping plate (13), and each connecting plate (7) is provided with an auxiliary structure.

2. A special welding fixture for precision parts according to claim 1, characterized in that: The auxiliary structure comprises a connecting rod (11) fixedly connected to the side wall of the connecting plate (7), and the connecting rod (11) is arranged at the center of the side wall of the connecting plate (7), each of the connecting rods (11) is provided with a connecting cavity (18) inside, and a moving block (19) is slidably connected between the inner walls of each of the connecting cavities (18), and one end of each of the moving blocks (19) close to the fixed clamping plate (13) is fixedly connected to a fixed rod (12), and each of the fixed rods (12) is divided into The fixing rods (12) are respectively arranged to penetrate the inner wall of the corresponding connecting cavity (18) and extend to the outer side of the connecting rod (11); one end of each fixing rod (12) located on the outer side of the connecting rod (11) is respectively fixedly connected to the side wall of the corresponding fixing clamp (13); one end of each moving block (19) away from the fixing rod (12) is fixedly connected to a connecting spring (20); and one end of each connecting spring (20) away from the moving block (19) is respectively fixedly connected to the inner wall of the corresponding connecting cavity (18).

3. A special welding fixture for precision parts according to claim 1, characterized in that: Each of the fixed splints (13) is provided with a mounting groove (14) on its front and rear side walls, and a mounting shaft (15) is rotatably connected between the upper and lower inner walls of each of the mounting grooves (14). A clamping side plate (16) is fixedly sleeved on each of the mounting shafts (15). A torsion spring (17) is fixedly connected to the upper and lower inner walls of each of the mounting grooves (14). Each of the torsion springs (17) is sleeved on the outer side of the corresponding mounting shaft (15), and the end of each of the torsion springs (17) is fixedly connected to the corresponding clamping side plate (16). Fixed grooves are provided on the side walls of each of the clamping side plates (16) and the fixed splints (13).

4. A special welding fixture for precision parts according to claim 1, characterized in that: A connecting groove (8) is provided at the bottom end of each connecting plate (7); a connecting shaft (9) is rotatably connected between the front and rear inner walls of each connecting groove (8); a connecting support plate (10) is fixedly sleeved on each connecting shaft (9); and the length of the connecting support plate (10) corresponds to the fixed clamping plate (13); a damping ring is rotatably sleeved on each connecting shaft (9), and the damping ring is fixedly connected to the inner wall of the connecting groove (8); one end of each connecting shaft (9) passes through the inner wall of the corresponding connecting groove (8) and extends to the outer side of the connecting plate (7); and one end of each connecting shaft (9) located on the outer side of the connecting plate (7) is fixedly connected to an adjusting block (24).

5. The special welding fixture for precision parts according to claim 1 is characterized in that: A rotating rod (21) is fixedly connected to the side wall of one of the rotating blocks (6), the rotating rod (21) passes through the corresponding fixed plate (5), and one end of the rotating rod (21) located outside the fixed plate (5) is fixedly connected to the rotating block (22).

6. A special welding fixture for precision parts according to claim 1, characterized in that: The workbench (1) is provided with a controller matched with the motor (23).

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