A welding tool for manufacturing mechanical and electrical equipment

Abstract

The present invention belongs to the field of welding technology, specifically a welding tool for manufacturing mechanical and electrical equipment, comprising a base plate, a turntable is installed on the base plate; a mounting cavity is provided on the base plate, the turntable is installed in the mounting cavity, a mounting ring is installed on the turntable, a first locking rod is installed on the side of the base plate and the first locking rod abuts against the mounting ring; a plurality of groups of slide grooves are evenly provided on the turntable around the center line, and sliders are slidably installed in the slide grooves, and compression springs are installed between the sliders, and a guide rod and an adjusting screw are installed on the slider, and a fixed pressure plate is installed on the guide rod, and the adjusting screw drives the fixed pressure plate to move in the vertical direction; the present invention has a simple structure, can fix the workpiece in multiple directions, adapt to the fixation of workpieces with different and irregular shapes, and can conveniently adjust the angle of the workpiece, which is convenient for the staff to weld the workpiece and improves the fixation and welding effect of the workpiece.

Description

Technical Field

[0001] The invention belongs to the technical field of welding, in particular to a welding tool for manufacturing mechanical and electrical equipment. Background Art

[0002] Mechanical and electrical equipment is a general term for generators, transformers, power lines, circuit breakers, and other equipment in power systems. The crucial role that electricity plays in our lives and production cannot be ignored. It brings us immense convenience and has become a vital energy source in our daily lives. Electrical equipment is the most critical factor in ensuring the normal operation and transmission of electricity in power plants.

[0003] In the use of existing welding fixtures for the manufacture of mechanical and electrical equipment, it is found that when the operator is welding the workpiece on the operation panel, he needs to fix it with his hands to ensure the stability of the workpiece, which not only reduces the operator's welding efficiency, but also poses a safety hazard, resulting in poor practicality. At the same time, when welding at different positions on the workpiece, it is necessary to adjust the angle of the workpiece and turn the part to be welded towards the worker to facilitate the welding operation. After the existing welding fixture is clamped on the workpiece, it is not convenient to adjust the angle of the workpiece. If the fixture is loosened to adjust the angle and then re-clamped, the workpiece is likely to be offset, affecting the quality of the workpiece welding. Summary of the Invention

[0004] In order to make up for the shortcomings of the existing technology, the workpiece is fixed in multiple directions, adapting to the fixation of different and irregularly shaped workpieces, and being able to conveniently adjust the angle of the workpiece, so as to facilitate the welding of the workpiece by the staff and improve the fixation and welding effect of the workpiece, the present invention proposes a welding tool for manufacturing mechanical and electrical equipment.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: the welding tool for manufacturing mechanical and electrical equipment of the present invention comprises a base plate, a bracket is installed below the base plate, a turntable is installed on the base plate, and the turntable is used to place the workpiece to be welded;

[0006] The bottom plate is provided with a mounting cavity, the turntable is mounted in the mounting cavity via a rotating shaft, a mounting ring is mounted below the turntable, a first locking rod is threadedly mounted on a side surface of the bottom plate, and the first locking rod abuts against an outer surface of the mounting ring;

[0007] A plurality of groups of slide grooves are evenly arranged on the turntable around the center line, and a slider is slidably installed in the slide groove. A compression spring is installed between the slider and the side wall of the slide groove away from the center line of the turntable. A guide rod and an adjusting screw are installed on the slider, and a fixed pressure plate is installed on the guide rod. The adjusting screw drives the fixed pressure plate to move in the vertical direction.

[0008] Preferably, an elastic layer is installed on the surface of the fixed pressure plate, and evenly distributed mounting holes are opened on the fixed pressure plate. The mounting holes pass through the elastic layer, and a telescopic rod is installed in the mounting hole. The surface of the extended end of the telescopic rod is flush with the surface of the elastic layer, and the telescopic length of the telescopic rod is less than or equal to the elastic deformation amplitude of the elastic layer.

[0009] Preferably, an elastic block is installed on the protruding end of the telescopic rod, and the side of the elastic block away from the telescopic rod is flush with the surface of the elastic layer. The elastic block and the elastic layer are made of the same material, and anti-slip protrusions are provided on the surfaces of the elastic layer and the elastic block.

[0010] Preferably, a synchronization ring is installed on the outer side of the turntable, and the cross-section of the synchronization ring is L-shaped. A pull rope is installed on the side of the slider facing the synchronization ring, and the other end of the pull rope passes through the slide groove and is installed on the inner side of the synchronization ring. A second locking rod is threadedly installed on the synchronization ring, and the second locking rod abuts against the outer side of the turntable.

[0011] Preferably, a mounting groove is provided on the bottom surface of the slider, the mounting groove is located at the end of the slider away from the synchronization ring, a friction block is hingedly installed in the mounting groove, the end of the friction block away from the synchronization ring is in a free state, and the friction block is in contact with the bottom surface of the slide groove.

[0012] Preferably, the thickness of the friction block at the end away from the synchronizer ring is greater than the thickness of the friction block at the end close to the synchronizer ring, and there is a gap between the friction block and the bottom surface of the mounting groove.

[0013] Preferably, the end of the slide close to the synchronous ring passes through the outer side surface of the turntable, and a block is installed at the end of the slide close to the synchronous ring. A triangular elastic groove is provided on the block, and an extrusion block is installed in the elastic groove. A locking screw is installed on the block, and the lower end of the locking screw is rotatably connected to the extrusion block. The two ends of the compression spring are respectively connected to the block and the slider, and the pull rope passes through the through hole on the block.

[0014] Preferably, evenly distributed positioning holes are provided on the surface of the turntable, limiting rods are installed in the positioning holes, the workpiece is located in the area surrounded by the limiting rods, a magnetic block is installed on one end of the limiting rod located in the positioning hole, and a sticky silicone layer is installed on the surface of the turntable.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The welding tool for manufacturing mechanical and electrical equipment described in the present invention, by providing a base plate, a turntable, a slide groove, a compression spring, a slider, and a fixed pressure plate, enables the workpiece to be fixed in multiple directions, can adapt to fix workpieces of different and irregular shapes, improve the fixation effect of the workpiece, and ensure the stability of the workpiece during the welding process. At the same time, when welding different parts of the workpiece, the worker rotates the turntable to face the part to be welded toward the worker, so as to facilitate the welding operation and improve the welding effect of the workpiece.

[0017] 2. The welding tool for manufacturing mechanical and electrical equipment described in the present invention is equipped with a synchronization ring, a pull rope and a second locking rod. When the worker rotates the synchronization ring, the slider can be moved synchronously, so that the slider and the fixed pressure plate can be moved together, avoiding the need for the worker to move each slider and fixed pressure plate in turn, reducing the operating steps when the welding tool is used to fix the workpiece, and improving the operating efficiency of the worker.

[0018] 3. The welding tooling for manufacturing mechanical and electrical equipment described in the present invention is equipped with a fixed pressure plate, an elastic layer, a telescopic rod and a friction block, so that when the workpiece is fixed, it can be blocked and restricted by the uncompressed telescopic rod, thereby ensuring the fixing effect of the workpiece. At the same time, the friction block decelerates and buffers the movement of the slider toward the workpiece, so that the fixed pressure plate can slowly contact and squeeze onto the workpiece, further improving the fixing effect of the workpiece and avoiding the edge of the workpiece from being damaged by collision or the workpiece being squeezed out or ejected from between the fixed pressure plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 It is a three-dimensional diagram of the welding tool of the present invention;

[0021] Figure 2 is a cross-sectional view of the welding tool of the present invention from a first viewing angle;

[0022] Figure 3 is a cross-sectional view of the welding tool of the present invention from a second viewing angle;

[0023] Figure 4 This is a schematic diagram of the installation position of the stopper and the slider in the welding tool of the present invention;

[0024] Figure 5 It is a structural schematic diagram of the slider and the fixed pressure plate in the welding tool of the present invention;

[0025] Figure 6 It is a structural diagram of the turntable and the mounting ring in the welding tool of the present invention;

[0026] Figure 7 yes Figure 2A partial enlarged view of the middle part;

[0027] Figure 8 yes Figure 2 A partial enlarged view of point B in the middle;

[0028] Figure 9 yes Figure 3 A partial enlarged view of point C in the middle;

[0029] Figure 10 yes Figure 5 A partial enlarged view of point D in the middle;

[0030] In the figure: base plate 1, mounting cavity 11, rotating shaft 12, positioning guide wheel 13, turntable 2, slide groove 21, mounting ring 22, guide groove 221, first locking rod 222, positioning hole 23, limit rod 231, fixed pressure plate 3, slider 31, guide rod 311, adjusting screw 312, elastic layer 32, friction block 33, mounting groove 331, compression spring 34, telescopic rod 35, elastic block 351, stop block 4, elastic groove 41, extrusion block 42, locking screw 43, pull rope 44, synchronizer ring 5, second locking rod 51. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] like Figures 1 to 10 As shown, the welding tool for manufacturing mechanical and electrical equipment of the present invention comprises a base plate 1, a bracket is installed below the base plate 1, a turntable 2 is installed on the base plate 1, and the turntable 2 is used to place the workpiece to be welded;

[0033] The base plate 1 is provided with a mounting cavity 11, and the turntable 2 is mounted in the mounting cavity 11 via a rotating shaft 12. A mounting ring 22 is mounted below the turntable 2. A first locking rod 222 is threadedly mounted on the side surface of the base plate 1, and the first locking rod 222 abuts against the outer surface of the mounting ring 22.

[0034] In order to ensure the rotation of the turntable 2, a guide groove 221 is provided on the inner side surface of the mounting ring 22, and multiple sets of positioning guide wheels 13 are installed in the mounting cavity 11, so that the positioning guide wheels 13 and the guide grooves 221 match each other, thereby ensuring that the turntable 2 can rotate stably and avoiding the turntable 2 from tilting or shaking.

[0035] The turntable 2 is provided with a plurality of chute grooves 21 evenly arranged around the center line. A slider 31 is slidably mounted in the chute 21. A compression spring 34 is mounted between the slider 31 and the side wall of the chute 21 at the end away from the center line of the turntable 2. A guide rod 311 and an adjusting screw 312 are mounted on the slider 31. A fixed pressure plate 3 is mounted on the guide rod 311. The adjusting screw 312 drives the fixed pressure plate 3 to move in the vertical direction.

[0036] When welding components on mechanical and electrical equipment during the manufacturing process, the worker moves and locks the sliders 31 and the fixed pressure plate 3 on the turntable 2 in a direction away from the center of the turntable 2, so that the central area of ​​the turntable 2 is in an idle state, so that the worker can place the workpiece to be welded on the surface of the turntable 2. After that, the worker releases the sliders 31 and the fixed pressure plate 3 in turn, so that the sliders 31 and the fixed pressure plate 3 are close to the workpiece under the action of the compression spring 34, and then the fixed pressure plate 3 contacts and squeezes the edge of the workpiece to position and fix the workpiece to be welded, ensuring the position stability of the workpiece during the welding process, improving the welding effect of the workpiece, and eliminating the need for the worker to press and fix the workpiece manually during the welding process, thereby ensuring the stability of the workpiece, improving the welding effect of the worker and avoiding safety hazards.

[0037] At the same time, since the turntable 2 is provided with multiple groups of slide grooves 21, sliders 31 and fixed pressure plates 3, the workpiece placed on the turntable 2 can be fixed and locked from multiple directions, thereby improving the fixing effect of the workpiece and adapting to the fixing of workpieces of different shapes and sizes. Therefore, when welding different workpieces, the fixed pressure plates 3 at different positions can be used to fully clamp and fix the workpiece according to the changes in the shape and size of the workpiece, thereby ensuring a good fixing effect of the workpiece and avoiding movement of the workpiece during welding, which affects the welding quality and effect of the workpiece; at the same time, when the shape of the workpiece is irregular, resulting in the fixed pressure plate 3 being unable to accurately and fully contact and squeeze the edge of the workpiece, the staff rotates the adjusting screw 312 on the slider 31 to change the height of the fixed pressure plate 3 relative to the slider 31, so that the fixed pressure plates 3 corresponding to different areas of the edge of the workpiece can accurately contact and squeeze the side of the workpiece, thereby ensuring that the fixed pressure plate 3 fully and stably squeezes and fixes the workpiece, and avoids insufficient contact between the fixed pressure plate 3 and the side of the workpiece, resulting in uneven force on the workpiece, affecting the fixing effect of the workpiece and posing a safety hazard;

[0038] At the same time, since the turntable 2 is mounted on the base plate 1 through the rotating shaft 12, when welding is required at different positions on the workpiece, the staff twists the first locking rod 222 on the base plate 1 so that the first locking rod 222 no longer abuts against the outer surface of the mounting ring 22, and releases the lock on the turntable 2. After that, the staff can easily rotate the turntable 2 so that the workpiece fixed on the turntable 2 can be rotated to a suitable angle, that is, the welding part on the workpiece is facing the staff, and then the first locking rod 222 is reused to lock the turntable 2, thereby facilitating the staff to perform welding operations on the workpiece, avoiding the need to re-clamp the workpiece and avoiding the workpiece from being offset, thereby ensuring the welding quality of the workpiece.

[0039] As an embodiment of the present invention, an elastic layer 32 is installed on the surface of the fixed pressure plate 3. The fixed pressure plate 3 is provided with evenly distributed mounting holes, which penetrate the elastic layer 32. A telescopic rod 35 is installed in the mounting hole. The extended end surface of the telescopic rod 35 is flush with the surface of the elastic layer 32. The telescopic length of the telescopic rod 35 is less than or equal to the elastic deformation amplitude of the elastic layer 32.

[0040] By installing the elastic layer 32 on the surface of the fixed pressing plate 3, when the fixed pressing plate 3 squeezes the edge of the fixed workpiece, hard squeezing between the fixed pressing plate 3 and the workpiece can be avoided, thereby preventing the edge of the workpiece from being damaged during fixation;

[0041] At the same time, when the fixed pressure plate 3 is fixing the workpiece, the elastic layer 32 will be subjected to the force and then deformed. At this time, the edge of the workpiece is interlaced with the surface of the non-elastic deformation area of ​​the elastic layer 32, and the telescopic rod 35 in the non-deformed area of ​​the elastic layer 32 is still in an extended state, which will make the extended end of the telescopic rod 35 in the extended state exceed the edge of the workpiece, thereby blocking and locking the workpiece, improving the fixing effect of the workpiece, and preventing the workpiece from slipping out of the fixed pressure plate 3 during welding or being squeezed out or popping out from between the fixed pressure plates 3 due to uneven force, thereby avoiding safety hazards and preventing the welding effect of the workpiece from being affected.

[0042] At the same time, by making the mounting hole pass through the elastic layer 32, and the protruding end of the protruding rod is located in the mounting hole in the elastic layer 32, the protruding end of the protruding rod can be protected by the elastic layer 32, reducing the possibility of damage to the protruding end of the protruding rod. At the same time, when the workpiece is fixed, the protruding rod in the non-deformed area of ​​the elastic layer 32 will be connected as a whole under the action of the elastic layer 32, so that the force exerted on the protruding end of the telescopic rod 35 that directly contacts the edge of the workpiece can be distributed to other telescopic rods 35 in the extended state, thereby avoiding the protruding rod that directly contacts the edge of the workpiece from being damaged by excessive force, affecting the normal use of the telescopic rod 35 and the fixing effect on the workpiece.

[0043] As an embodiment of the present invention, an elastic block 351 is installed on the protruding end of the telescopic rod 35. The side of the elastic block 351 away from the telescopic rod 35 is flush with the surface of the elastic layer 32. The elastic block 351 and the elastic layer 32 are made of the same material. Anti-slip protrusions are provided on the surfaces of the elastic layer 32 and the elastic block 351.

[0044] Since the telescopic rods 35 are evenly distributed on the fixed pressure plate 3, and the protruding ends of the telescopic rods 35 are located in the mounting holes in the elastic layer 32, there will be gaps between the protruding ends of the telescopic rods 35. At this time, the edge of the workpiece will be located in the gap between the protruding ends of the telescopic rods 35 in the extended state and the compressed state, that is, the edge of the workpiece will not contact the protruding ends of the telescopic rods 35, so that there will be space for the workpiece to slide or shake, that is, the workpiece may slide or shake. Therefore, anti-slip protrusions are provided on the surfaces of the elastic block 351 and the elastic layer 32 to further fix the workpiece, avoid possible sliding or shaking of the workpiece, and ensure that the workpiece is firmly and stably fixed.

[0045] As one embodiment of the present invention, a synchronizer ring 5 is mounted on the outer surface of the turntable 2. The synchronizer ring 5 has an L-shaped cross section. A pull rope 44 is mounted on the side of the slider 31 facing the synchronizer ring 5. The other end of the pull rope 44 passes through the slide groove 21 and is mounted on the inner surface of the synchronizer ring 5. A second locking rod 51 is threadedly mounted on the synchronizer ring 5 and abuts against the outer surface of the turntable 2.

[0046] Since multiple sets of slide grooves 21 and fixed pressure plates 3 are installed on the turntable 2, when the workpiece is fixed on the welding fixture, the staff needs to move the slider 31 and the fixed pressure plate 3 multiple times and frequently, which makes the staff's operation relatively cumbersome and the staff's operation efficiency relatively low. Therefore, by providing the synchronizer ring 5 and the pull rope 44, when it is necessary to move the slider 31 and the fixed pressure plate 3 toward the edge of the turntable 2, the staff rotates the second locking rod 51 to release the lock of the synchronizer ring 5. After that, the staff rotates the synchronizer ring 5 so that the synchronizer ring 5 pulls the pull rope 44, so that the length of the pull rope 44 outside the slide groove 21 increases, that is, the slider 31 and the fixed pressure plate 3 move toward the edge of the turntable 2, so that the area in the middle position of the turntable 2 is free, which is convenient for the workpiece to be placed on the turntable 2. After that, the staff releases the rotation of the synchronizer ring 5, so that the slider 31 and the fixed pressure plate 3 fix the workpiece;

[0047] At the same time, through the action of the synchronization ring 5 and the pull rope 44, the staff can move all the sliders 31 and the fixed pressure plate 3 at the same time, avoiding the need for the staff to move each slider 31 and the fixed pressure plate 3 in sequence and repeatedly, reducing the staff's operating steps, reducing the complexity of the operation, and improving the staff's operating efficiency and the staff's efficiency in welding the workpiece.

[0048] As one embodiment of the present invention, a mounting groove 331 is defined on the bottom surface of the slider 31. The mounting groove 331 is located at the end of the slider 31 away from the synchronizer ring 5. A friction block 33 is hingedly mounted in the mounting groove 331. The end of the friction block 33 away from the synchronizer ring 5 is in a free state. The friction block 33 is in contact with the bottom surface of the slide groove 21.

[0049] After the workpiece is placed in the middle area of ​​the turntable 2, the staff will release the lock of the synchronizer ring 5, so that the slider 31 and the fixed pressure plate 3 move quickly toward the workpiece under the action of the compression spring 34, thereby causing the fixed pressure plate 3 to squeeze and fix the workpiece. In this process, the slider 31 and the fixed pressure plate 3 move relatively quickly toward the workpiece under the action of the compression spring 34. When the fixed pressure plate 3 contacts the edge of the workpiece, the side of the workpiece may be hit or damaged by the impact, or the workpiece may be squeezed out or knocked away after being impacted or hit by the fixed pressure plate 3, resulting in poor workpiece fixation or the workpiece falling, affecting the fixation of the welding tool to the workpiece. Therefore, a friction block 33 is installed at the bottom of the slider 31. Since the friction block 33 is hingedly installed, when the slider 31 is pulled by the rope When the slider 31 is pulled by the operator and moves in the direction away from the workpiece, the friction block 33 is equivalent to being dragged, and the force between the friction block 33 and the bottom surface of the slide groove 21 is relatively small, which will not affect the movement of the slider 31 in the direction away from the workpiece. At the same time, when the locking of the synchronizer ring 5 is released by the staff and the slider 31 moves rapidly toward the workpiece under the action of the compression spring 34, the friction block 33 is equivalent to being pushed to move, and in the process of movement, the force between the friction block 33 and the bottom surface of the slide groove 21 will gradually increase under the action of gravity, and the friction force will be relatively large, thereby buffering and slowing down the movement of the slider 31 toward the workpiece, avoiding the fixed pressure plate 3 from directly colliding with or impacting the side of the workpiece, ensuring that the side of the workpiece is not easily damaged and the welding tooling has a good fixing effect on the workpiece.

[0050] As an embodiment of the present invention, the thickness of the friction block 33 at the end away from the synchronizer ring 5 is greater than the thickness of the friction block 33 at the end close to the synchronizer ring 5, and a gap exists between the friction block 33 and the bottom surface of the mounting groove 331;

[0051] Since the thickness of the friction block 33 near the workpiece end is relatively large, that is, the weight of the friction block 33 near the workpiece end is relatively large, therefore, when the slider 31 moves toward the workpiece, the gravity of the friction block 33 itself will make the force between the end of the friction block 33 near the workpiece and the bottom surface of the slide groove 21 relatively large, and the hinged installation of the friction block 33 and the friction block 33 being pushed toward the workpiece will make the friction block 33 and the bottom surface of the slide groove 21 tightly attached to each other, and the force between them will slowly increase, thereby ensuring sufficient contact between the friction block 33 and the bottom surface of the slide groove 21, and further ensuring that the friction block 33 buffers and decelerates the movement of the slider 31 toward the workpiece.

[0052] As an embodiment of the present invention, the end of the slide 21 near the synchronizer ring 5 passes through the outer side surface of the turntable 2. The end of the slide 21 near the synchronizer ring 5 is installed with a stopper 4. The stopper 4 is provided with a triangular elastic groove 41. An extrusion block 42 is installed in the elastic groove 41. A locking screw 43 is installed on the stopper 4. The lower end of the locking screw 43 is rotatably connected to the extrusion block 42. The two ends of the compression spring 34 are respectively connected to the stopper 4 and the slider 31. The pull rope 44 passes through the through hole in the stopper 4.

[0053] When welding different workpieces, the shapes of different workpieces are different, and the outer shapes of the workpieces are not necessarily regular shapes. At this time, the sliders 31 at different positions need to move different distances to drive the fixed pressure plate 3 to fix the workpiece, that is, the forces exerted by the compression springs 34 on the sliders 31 are different, which makes the fixing forces on different positions of the welded workpiece different, thereby easily affecting the fixing effect and stability of the workpiece. At the same time, the end of the slide 21 close to the synchronizer ring 5 passes through the outer side of the turntable 2, that is, one end of the slide 21 is in an open state, and a retaining ring is installed at the open end of the slider 31. The stopper 4 in the chute 21 can be moved and disassembled, thereby facilitating the installation and replacement of the slider 31, the compression spring 34 and the pull rope 44. At the same time, when fixing different workpieces, by adjusting the position of the stopper 4 in the chute 21, the distance between the slider 31 and the stopper 4 can be made the same as much as possible when different sliders 31 and the fixed pressure plate 3 are used to fix the workpiece, that is, the force exerted by the compression spring 34 on the slider 31 is the same, thereby ensuring that when the welding fixture is used to fix different and irregularly shaped workpieces, the fixing force exerted on all parts of the workpiece is the same, thereby improving the fixing effect of the workpiece and the stability of the workpiece during welding.

[0054] At the same time, after the stopper 4 is installed in the slide groove 21 and the relative position of the stopper 4 is adjusted, the staff twists the locking screw 43 with a tool, so that the locking screw 43 drives the extrusion block 42 to move downward in the elastic groove 41, thereby using the extrusion block 42 to squeeze the triangular elastic groove 41, so that the gap at the lower end of the triangular elastic groove 41 is expanded, that is, the stopper 4 expands and gets stuck in the slide groove 21, completing the installation of the stopper 4. At the same time, since the stopper 4 can be easily disassembled and installed from the slide groove 21, when installing workpieces of different shapes, the number of sliders 31 and fixed pressure plates 3 on the turntable 2 for fixing is adjusted according to the characteristics of the workpiece shape, thereby reducing the number of sliders 31 and fixed pressure plates 3 used while ensuring that the workpiece is fully fixed, and avoiding the excessive number of sliders 31 and fixed pressure plates 3 of the turntable 2, which affects or interferes with the placement and fixation of workpieces with irregular shapes.

[0055] As an embodiment of the present invention, the surface of the turntable 2 is provided with evenly distributed positioning holes 23, and the positioning holes 23 are installed in the limiting rods 23. The workpiece is located in the area surrounded by the limiting rods 231. A magnetic block is installed on one end of the limiting rod 231 located in the positioning hole 23. A sticky silicone layer is installed on the surface of the turntable 2.

[0056] By providing a positioning hole 23 on the turntable 2 and installing a limit rod 231 in the positioning hole 23, the limit rod 231 forms a barrier and limit around the workpiece to be welded, thereby ensuring that the position of the workpiece is relatively accurate when the staff places the workpiece on the turntable 2, facilitating the subsequent fixing of the workpiece, and avoiding excessive position deviation when the workpiece is placed, resulting in the fixed pressure plate 3 pushing the workpiece to move a large distance on the surface of the turntable 2 when fixing the workpiece, causing wear and scratches on the surfaces of the workpiece and the turntable 2, affecting the quality of the workpiece. At the same time, by installing a sticky silicone layer on the surface of the turntable 2, direct contact between the workpiece and the surface of the turntable 2 can be avoided, reducing the wear on the surfaces of both, and after the workpiece is placed on the silicone layer, it is affected by the viscosity, making it difficult for the position of the workpiece to move, avoiding the workpiece from moving, or contact or squeezing between the workpiece and the limit rod 231, thereby ensuring the fixing effect of the workpiece.

[0057] The specific workflow is as follows:

[0058] The staff moves and locks the sliders 31 and the fixed pressure plate 3 on the turntable 2 away from the center of the turntable 2, so that the center area of ​​the turntable 2 is in an idle state. The staff places the workpiece to be welded on the surface of the turntable 2. After that, the staff releases the sliders 31 and the fixed pressure plate 3 in turn, so that the sliders 31 and the fixed pressure plate 3 move toward the workpiece under the action of the compression spring 34, and then the fixed pressure plate 3 contacts and presses the edge of the workpiece to position and fix the workpiece to be welded;

[0059] At the same time, since the turntable 2 is provided with multiple sets of slide grooves 21, sliders 31 and fixed pressure plates 3, the workpiece placed on the turntable 2 can be fixed and locked from multiple directions, and can adapt to the fixation of workpieces of different shapes and sizes;

[0060] At the same time, when the shape of the workpiece is irregular and the fixed pressing plate 3 cannot accurately and fully contact and press the edge of the workpiece, the staff rotates the adjusting screw 312 on the slider 31 to change the height of the fixed pressing plate 3 relative to the slider 31, so that the fixed pressing plate 3 corresponding to different areas of the workpiece edge can accurately contact and press the side of the workpiece;

[0061] When welding is required at different positions on the workpiece, the worker twists the first locking rod 222 on the bottom plate 1 to unlock the turntable 2. After that, the worker can easily rotate the turntable 2 so that the workpiece fixed on the turntable 2 can be rotated to a suitable angle, that is, the welding position on the workpiece faces the worker, and then the turntable 2 is locked again using the first locking rod 222.

[0062] By installing an elastic layer 32 on the surface of the fixed pressing plate 3, hard squeezing between the fixed pressing plate 3 and the workpiece is avoided when the fixed pressing plate 3 squeezes the edge of the fixed workpiece;

[0063] At the same time, when the fixed pressure plate 3 is fixing the workpiece, the elastic layer 32 is subjected to the force and then deformed. At this time, the edge of the workpiece is interlaced with the surface of the non-elastic deformation area of ​​the elastic layer 32, and the telescopic rod 35 in the non-deformed area of ​​the elastic layer 32 is still in the extended state, which will cause the extended end of the telescopic rod 35 to exceed the edge of the workpiece, thereby blocking and locking the workpiece.

[0064] At the same time, by having the mounting hole pass through the elastic layer 32 and the extended end of the extension rod located in the mounting hole in the elastic layer 32, the extended end of the extension rod can be protected by the elastic layer 32. At the same time, when the workpiece is fixed, the extension rod in the non-deformed area of ​​the elastic layer 32 is connected as a whole under the action of the elastic layer 32, thereby allowing the force exerted on the extended end of the telescopic rod 35 directly contacting the edge of the workpiece to be distributed to the other telescopic rods 35 in the extended state, thereby preventing the extension rod directly contacting the edge of the workpiece from being damaged by excessive force.

[0065] Since the telescopic rods 35 are evenly distributed on the fixed plate 3 and the protruding ends of the telescopic rods 35 are located in the mounting holes in the elastic layer 32, there will be gaps between the protruding ends of the telescopic rods 35. At this time, there will be space for the workpiece to slide or shake, that is, the workpiece may slide or shake. Therefore, anti-slip protrusions are provided on the surfaces of the elastic blocks 351 and the elastic layer 32 to further fix the workpiece.

[0066] By providing the synchronizer ring 5 and the pull rope 44, when it is necessary to move the slider 31 and the fixed pressure plate 3 toward the edge of the turntable 2, the staff rotates the second locking rod 51 to release the lock of the synchronizer ring 5. After that, the staff rotates the synchronizer ring 5 so that the synchronizer ring 5 pulls the pull rope 44, thereby increasing the length of the pull rope 44 outside the slide groove 21. That is, the slider 31 and the fixed pressure plate 3 move toward the edge of the turntable 2, freeing up the area in the middle of the turntable 2 to facilitate the placement of the workpiece on the turntable 2. After that, the staff releases the rotation of the synchronizer ring 5 so that the slider 31 and the fixed pressure plate 3 fix the workpiece.

[0067] At the same time, through the action of the synchronization ring 5 and the pull rope 44, the staff can move all the sliders 31 and the fixed pressure plate 3 at the same time, avoiding the need for the staff to move each slider 31 and the fixed pressure plate 3 in sequence and repeatedly;

[0068] A friction block 33 is installed at the bottom of the slider 31. Since the friction block 33 is hingedly installed, when the slider 31 is pulled by the pull rope 44 and moves in a direction away from the workpiece, the friction block 33 is equivalent to being dragged, and the force between the friction block 33 and the bottom surface of the slide groove 21 is relatively small, which will not affect the movement of the slider 31 in the direction away from the workpiece. At the same time, when the lock of the synchronizer ring 5 is released by the staff and the slider 31 moves rapidly toward the workpiece under the action of the compression spring 34, the friction block 33 is equivalent to being pushed to move, and during the movement, the force between the friction block 33 and the bottom surface of the slide groove 21 will gradually increase under the action of gravity, and the friction force will be relatively large, thereby buffering and slowing down the movement of the slider 31 toward the workpiece.

[0069] Since the thickness of the friction block 33 near the workpiece end is relatively large, that is, the weight of the friction block 33 near the workpiece end is relatively large, therefore, when the slider 31 moves toward the workpiece, the gravity of the friction block 33 itself will make the force between the end of the friction block 33 near the workpiece and the bottom surface of the slide groove 21 relatively large, and the hinged installation of the friction block 33 and the friction block 33 being pushed toward the workpiece will make the friction block 33 and the bottom surface of the slide groove 21 tightly adhere to each other, and the mutual force will slowly increase, ensuring sufficient contact between the friction block 33 and the bottom surface of the slide groove 21, ensuring that the friction block 33 buffers and decelerates the movement of the slider 31 toward the workpiece;

[0070] When fixing different workpieces, the position of the stopper 4 in the chute 21 is adjusted so that the distance between the slider 31 and the stopper 4 is the same as far as possible when different sliders 31 and the fixed pressure plate 3 are fixing the workpieces. That is, the force exerted by the compression spring 34 on the slider 31 is the same, ensuring that when the welding fixture is used to fix different and irregularly shaped workpieces, the fixing force exerted on all parts of the workpiece is the same.

[0071] At the same time, after the stopper 4 is installed in the chute 21 and the relative position of the stopper 4 is adjusted, the staff uses a tool to screw the locking screw 43, so that the locking screw 43 drives the extrusion block 42 to move downward in the elastic groove 41, thereby using the extrusion block 42 to squeeze the triangular elastic groove 41, so that the gap at the lower end of the triangular elastic groove 41 is expanded, that is, the stopper 4 expands and gets stuck in the chute 21.

[0072] By opening a positioning hole 23 on the turntable 2 and installing a limiting rod 231 in the positioning hole 23, the limiting rod 231 forms a barrier and limit around the workpiece to be welded, thereby ensuring that the position of the workpiece is relatively accurate when the staff places the workpiece on the turntable 2. At the same time, by installing a sticky silicone layer on the surface of the turntable 2, direct contact between the workpiece and the surface of the turntable 2 can be avoided, reducing the wear on the surfaces of both.

[0073] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding tool for manufacturing mechanical and electrical equipment, comprising a base plate (1), a bracket being installed below the base plate (1), a turntable (2) being installed on the base plate (1), and the turntable (2) being used to place a workpiece to be welded; Its characteristics are: The bottom plate (1) is provided with a mounting cavity (11), the turntable (2) is mounted in the mounting cavity (11) via a rotating shaft (12), a mounting ring (22) is mounted below the turntable (2), a first locking rod (222) is mounted on the side surface of the bottom plate (1) via a thread, and the first locking rod (222) abuts against the outer surface of the mounting ring (22); A plurality of chute grooves (21) are evenly arranged on the turntable (2) around the center line, a slider (31) is slidably installed in the chute groove (21), a compression spring (34) is installed between the slider (31) and the side wall of the chute (21) away from the center line of the turntable (2), a guide rod (311) and an adjusting screw (312) are installed on the slider (31), a fixed pressure plate (3) is installed on the guide rod (311), and the adjusting screw (312) drives the fixed pressure plate (3) to move in the vertical direction; A synchronization ring (5) is installed on the outer side of the turntable (2), and the cross section of the synchronization ring (5) is L-shaped. A pull rope (44) is installed on the side of the slider (31) facing the synchronization ring (5), and the other end of the pull rope (44) passes through the slide groove (21) and is installed on the inner side of the synchronization ring (5). A second locking rod (51) is installed on the synchronization ring (5) through a thread, and the second locking rod (51) abuts against the outer side of the turntable (2); One end of the slide groove (21) close to the synchronous ring (5) passes through the outer side surface of the turntable (2); one end of the slide groove (21) close to the synchronous ring (5) is installed with a stopper (4); a triangular elastic groove (41) is opened on the stopper (4); an extrusion block (42) is installed in the elastic groove (41); a locking screw (43) is installed on the stopper (4); the lower end of the locking screw (43) is rotatably connected to the extrusion block (42); the two ends of the compression spring (34) are respectively connected to the stopper (4) and the slider (31); the pull rope (44) passes through the through hole on the stopper (4).

2. The welding tool for manufacturing mechanical and electrical equipment according to claim 1, characterized in that: An elastic layer (32) is installed on the surface of the fixed pressure plate (3), and evenly distributed mounting holes are opened on the fixed pressure plate (3), and the mounting holes penetrate the elastic layer (32). A telescopic rod (35) is installed in the mounting hole, and the surface of the extended end of the telescopic rod (35) is flush with the surface of the elastic layer (32), and the telescopic length of the telescopic rod (35) is less than or equal to the elastic deformation amplitude of the elastic layer (32).

3. The welding tool for manufacturing mechanical and electrical equipment according to claim 2, characterized in that: An elastic block (351) is installed on the protruding end of the telescopic rod (35), and the side of the elastic block (351) away from the telescopic rod (35) is flush with the surface of the elastic layer (32). The elastic block (351) and the elastic layer (32) are made of the same material, and anti-slip protrusions are provided on the surfaces of the elastic layer (32) and the elastic block (351).

4. The welding tool for manufacturing mechanical and electrical equipment according to claim 1, characterized in that: A mounting groove (331) is provided on the bottom surface of the slider (31), and the mounting groove (331) is located at the end of the slider (31) away from the synchronizer ring (5). A friction block (33) is hingedly installed in the mounting groove (331), and the end of the friction block (33) away from the synchronizer ring (5) is in a free state. The friction block (33) is in contact with the bottom surface of the slide groove (21).

5. The welding tool for manufacturing mechanical and electrical equipment according to claim 4, characterized in that: The thickness of the friction block (33) at one end away from the synchronization ring (5) is greater than the thickness of the friction block (33) at one end close to the synchronization ring (5), and a gap exists between the friction block (33) and the bottom surface of the mounting groove (331).

6. The welding tool for manufacturing mechanical and electrical equipment according to claim 1, characterized in that: The surface of the turntable (2) is provided with evenly distributed positioning holes (23), and a limiting rod (231) is installed in the positioning hole (23). The workpiece is located in an area surrounded by the limiting rod (231), and a magnetic block is installed on one end of the limiting rod (231) located in the positioning hole (23). A sticky silicone layer is installed on the surface of the turntable (2).

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