Welding fixture for argon arc welding machine
By designing a welding fixture for an argon arc welding machine with a clamping turntable and adjustment mechanism, the problem of existing fixtures being unable to adjust the clamping position has been solved, enabling flexible clamping of curved pipes and improving welding accuracy. At the same time, the purification system reduces air pollution.
Patent Information
- Application Number
- CN202423157053.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-20
AI Technical Summary
The existing argon arc welding machine's welding fixture cannot adjust the clamping position, resulting in severe interference when welding bent pipes and affecting the welding effect.
A welding fixture including a clamping turntable and an adjustment mechanism was designed. The distance of the clamping frame can be adjusted by the cooperation of the stop rack and the stop block, and the synchronous rotation of the clamping turntable can be achieved by the external spline shaft and the internal spline shaft. It is also equipped with an air inlet, a purification box and an air pump for filtering harmful gases.
It enables flexible clamping of different welded parts, reduces interference from the clamping turntable, improves welding accuracy, and reduces air pollution during welding through a purification system.
Smart Images
Figure CN223656210U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of argon arc welding machine technology, specifically a welding fixture for argon arc welding machines. Background Technology
[0002] Argon arc welding machines are machines that use argon arc welding, employing a high-pressure breakdown arc initiation method. Argon arc welding, also known as tungsten inert gas welding, refers to a welding method that uses industrial tungsten or active tungsten as a non-consumable electrode and inert gas (argon) as protection. When welding workpieces using an argon arc welding machine, the workpiece needs to be clamped and fixed. When welding circular pipes, because the shapes of the pipes to be joined vary, existing welding fixtures can only adjust the clamping diameter. When welding long and curved pipes, existing welding fixtures cannot adjust the clamping position, resulting in significant interference between the existing fixtures and the workpiece, making welding difficult.
[0003] Based on this, a welding fixture for an argon arc welding machine is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content
[0004] The purpose of this invention is to provide a welding fixture for an argon arc welding machine to solve the problem in the prior art that it is inconvenient to adjust the clamping position.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A welding fixture for an argon arc welding machine includes a clamping turntable. Two clamping turntables are symmetrically arranged. Each turntable has a circular array of adjustment grooves on one side, with adjustment blocks slidably disposed within each groove. A mounting plate is rotatably disposed inside the turntable. One side of the mounting plate has a spiral groove, and one side of each adjustment block has a protrusion that mates with the spiral groove. A bevel gear ring is fixedly disposed on the other side of the mounting plate, and a bevel gear meshes with the bevel gear, which rotatably resides inside the turntable. A circular through-hole is located in the center of the turntable. The clamping turntable has an extension tube fixedly mounted on one side, and several support frames rotatably mounted on the extension tube. The support frames are all fixedly mounted on the upper end of the mounting plate. The bottom end of the mounting plate has several support legs, and one end of each support leg is equipped with a roller. The roller is closely attached to the upper end of the base plate. The adjusting block has a fixed frame fixedly mounted on one side, and a clamping frame is slidably mounted on each fixed frame. The fixed frame has an adjustment mechanism inside for adjusting the working position of the clamping frame. The upper end of the base plate has a drive mechanism that enables the two clamping turntables to rotate synchronously.
[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions:
[0008] In one alternative embodiment: the adjusting mechanism includes a stop rack and a stop block; the upper end of the fixing frame is provided with a rectangular through hole, and the stop rack is symmetrically arranged in the rectangular through hole; the stop block is located inside one end of the clamping frame, and the stop block and the stop rack are at the same height; the stop block is fixedly located at one end of the push rod, and the push rod is slidably located in the sliding hole at one end of the clamping frame; the bottom end of the stop block is fixedly connected to the output end of the spring telescopic rod, and the spring telescopic rod is fixedly located inside the clamping frame.
[0009] In one alternative: the mounting bracket has graduations on both sides.
[0010] In one alternative: a protective tube is provided at the upper end of the clamping frame and one end of the push rod, and the length of the protective tube is greater than the exposed length of the push rod.
[0011] In one alternative embodiment: the drive mechanism includes gear rings, each of the two extension tubes is fixedly equipped with a gear ring, an idler gear meshes with the gear ring, the two ends of the idler gear are rotatably mounted between two support frames, each idler gear is meshed with a first gear, each end of the first gear is rotatably mounted with a first rotating plate, the first rotating plates are fixedly mounted at the bottom of the mounting plate, one end of the first gear is fixedly mounted with an external spline shaft, the two external spline shafts are slidably mounted at both ends of an internal spline shaft, the external spline shaft and the internal spline shaft are connected by a spline fit, a second rotating plate is symmetrically rotatably mounted on the internal spline shaft, the second rotating plates are fixedly mounted at the upper end of the base plate, a second gear is fixedly mounted on the internal spline shaft, a third gear meshes with the second gear, the third gear is fixedly mounted at the output end of the motor, and the motor is fixedly mounted at the upper end of the base plate.
[0012] In one alternative embodiment: a guide rail is provided at the upper end of the base plate corresponding to the position of the support leg at the bottom end of the mounting plate; a sliding block is fixedly provided at the bottom end of each mounting plate; a guide rod is slidably provided on each sliding block; the guide rod is fixedly provided at the upper end of the base plate; a threaded hole is fixedly provided at the bottom end of each mounting plate; a threaded hole is provided on one side of each threaded hole; a threaded rod is fitted inside each threaded hole; a third rotating plate is rotatably provided at both ends of each threaded rod; the third rotating plate is fixedly provided at the upper end of the base plate.
[0013] In one alternative: a fixing plate is fixedly provided on one side of the base plate, an air inlet is fixedly provided on one side of the fixing plate, a purification box is connected to the output end of the air inlet, the purification box is fixedly provided on one side of the fixing plate, a plurality of filter plates are provided inside the purification box, the output end of the purification box is connected to the input end of the air pump, and the air pump is fixedly provided on one side of the fixing plate.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] This invention features a clamping frame that slides on a fixed frame and is fixed by a stop rack and stop block. This allows for quick adjustment of the distance between the clamping end of the clamping frame and one side of the clamping turntable when welding different parts, thus satisfying the clamping and fixing needs of different parts. An extension tube is fixed to one side of each clamping turntable, allowing the part to be positioned inside the extension tube when welding longer parts, reducing interference from the clamping turntable. The inclusion of an external spline shaft and an internal spline shaft facilitates synchronous rotation of the two clamping turntables, ensuring welding accuracy. Furthermore, the inclusion of an air inlet, a purification box, and an air pump allows for the filtration of harmful gases generated during argon arc welding, reducing air pollution and increasing the practicality of the argon arc welding fixture. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the installation of the external spline shaft of this utility model.
[0018] Figure 3 This is a schematic diagram of the fixing frame structure of this utility model.
[0019] Figure 4 This is a schematic diagram of the internal structure of the clamping turntable of this utility model.
[0020] Figure 5 This is a schematic diagram of the stop block structure of this utility model.
[0021] Figure 6 This is a schematic diagram of the internal structure of the purification box of this utility model.
[0022] Figure reference numerals: 11 Clamping turntable, 12 Extension tube, 13 Support frame, 14 Adjusting block, 15 Spiral groove, 16 Bevel gear ring, 17 Bevel gear, 18 Fixing frame, 19 Clamping frame, 20 Stop rack, 21 Stop block, 22 Spring telescopic rod, 23 Mounting plate, 24 Guide rail, 25 Threaded rod, 26 Gear ring, 27 Idler wheel, 28 External spline shaft, 29 Internal spline shaft, 30 Motor, 31 Air inlet head, 32 Purification box, 33 Filter plate, 34 Air pump. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] Example 1
[0025] In one embodiment, such as Figures 1-6As shown, a welding fixture for an argon arc welding machine includes a clamping turntable 11. Two clamping turntables 11 are symmetrically arranged. Each clamping turntable 11 has a circular array of adjustment grooves on one side, and adjustment blocks 14 are slidably disposed within each adjustment groove. A mounting plate is rotatably disposed inside each clamping turntable 11. A spiral groove 15 is provided on one side of the mounting plate. Each adjustment block 14 has a protrusion on one side that cooperates with the spiral groove 15. A bevel gear ring 16 is fixedly disposed on the other side of the mounting plate. A bevel gear 17 meshes with the bevel gear ring 16 and rotatably displaces inside the clamping turntable 11. A circular through hole is provided in the center of each clamping turntable 11. An extension tube 12 is fixedly disposed on one side of each clamping turntable 11. The system is equipped with several support frames 13, each fixedly mounted on the upper end of the mounting plate 23. The bottom end of the mounting plate 23 has several support legs, each with a roller at one end. The roller is flush against the upper end of the base plate. A fixing frame 18 is fixedly mounted on one side of each adjusting block 14. A clamping frame 19 is slidably mounted on each fixing frame 18. The fixing frame 18 contains an adjustment mechanism for adjusting the working position of the clamping frame 19. The upper end of the base plate has a drive mechanism that allows two clamping turntables 11 to rotate synchronously. The adjustment mechanism facilitates adjustment of the distance between the working end of the clamping frame 19 and one side of the clamping turntable 11. The drive mechanism facilitates synchronous rotation of the two clamping turntables 11, making welding easier.
[0026] The adjusting mechanism includes a stop rack 20 and a stop block 21. The upper end of the fixing frame 18 has a rectangular through hole, within which the stop rack 20 is symmetrically arranged. The stop block 21 is located inside one end of the clamping frame 19, at the same height as the stop rack 20. The stop block 21 is fixedly mounted on one end of a push rod, which slides within a sliding hole at one end of the clamping frame 19. The bottom end of the stop block 21 is fixedly connected to the output end of a spring telescopic rod 22, which is fixedly mounted inside the clamping frame 19. In use, when welding and fixing a joint and pipe is required, and the joint is bent and cannot pass through the through hole in the middle of the clamping turntable 11, in order to clamp and fix the joint, the operator pushes the push rod before clamping and fixing. The rod drives the stop block 21 to slide, causing the stop block 21 to disengage from the two stop racks 20. Subsequently, the clamping frame 19 slides on the stop racks 20, adjusting the distance between one end of the clamping frame 19 and one side of the clamping turntable 11. After adjustment, the push rod is released, and under the action of the spring telescopic rod 22, the stop block 21 returns to the two stop racks 20, thus re-fixing the clamping frame 19. When clamping and fixing pipes or joints, the working rotating bevel gear 17 can be used. The bevel gear 17 meshes with the bevel gear ring 16 to drive the mounting plate to rotate. The spiral groove 15 on one side of the mounting plate cooperates with the protrusions on one side of several adjusting blocks 14, causing the adjusting blocks 14 to slide in the adjusting groove, so that one end of several clamping frames 19 clamps and fixes the pipe.
[0027] The fixing frame 18 has scales on both sides, which makes it easy to determine the distance the clamping frame 19 moves when it is in use.
[0028] A protective tube is provided at the upper end of the clamping frame 19 and at one end of the push rod. The length of the protective tube is greater than the exposed length of the push rod. In use, it is convenient to protect one end of the push rod and prevent accidental contact with the push rod.
[0029] The driving mechanism includes a gear ring 26, which is fixedly mounted on both extension tubes 12. Idler gears 27 mesh with the gear rings 26. The idler gears 27 have rotating shafts at both ends rotatably mounted between two support frames 13. First gears mesh with the idler gears 27. First rotating plates are rotatably mounted on the rotating shafts at both ends of the first gears. The first rotating plates are fixedly mounted on the bottom end of the mounting plate 23. External splined shafts 28 are fixedly mounted on one rotating shaft of each of the first gears. Two external splined shafts 28 are slidably mounted on both ends of an internal splined shaft 29. The external splined shafts 28 and the internal splined shafts 29 are connected by spline joints. Second rotating plates are symmetrically rotatably mounted on the internal splined shafts 29. The second rotating plates are fixedly mounted on the upper end of the base plate. A second gear is fixedly mounted on the inner spline shaft 29, and a third gear meshes with the second gear. The third gear is fixedly mounted on the output end of the motor 30, which is fixedly mounted on the upper end of the base plate. In use, after the clamping frame 19 clamps and fixes the welded parts and the weld joints of the two welded parts are joined, the motor 30 is started. The output end of the motor 30 drives the third gear to rotate. The third gear drives the inner spline shaft 29 to rotate through the second gear. The inner spline shaft 29 drives the two outer spline shafts 28 to rotate. The outer spline shafts 28 drive the first gear to rotate respectively. The first gear drives the extension tube 12 to rotate through the idler gear 27 and the gear ring 26, so that the two clamping turntables 11 rotate synchronously, which facilitates the operator to use the argon arc welding machine for welding.
[0030] A guide rail 24 is provided at the upper end of the base plate corresponding to the position of the support leg at the bottom end of the mounting plate 23. A sliding block is fixedly provided at the bottom end of the mounting plate 23, and a guide rod is slidably provided on each sliding block. The guide rod is fixedly provided at the upper end of the base plate. A threaded hole is fixedly provided at the bottom end of the mounting plate 23. A threaded hole is provided on one side of each threaded hole. A threaded rod 25 is fitted inside each threaded hole. A third rotating plate is rotatably provided at both ends of the threaded rod 25. The third rotating plate is fixedly provided at the upper end of the base plate. In use, when it is necessary to adjust the distance between the two clamping turntables 11, the threaded rod 25 can be rotated. Under the action of the thread, the mounting plate 23 moves along the length direction of the guide rail 24, thereby fixing the distance between the two clamping turntables 11.
[0031] Example 2
[0032] The difference from Embodiment 1 is that: a fixed plate is fixedly provided on one side of the base plate, and an air inlet 31 is fixedly provided on one side of the fixed plate. The output end of the air inlet 31 is connected to a purification box 32. The purification box 32 is fixedly provided on one side of the fixed plate. Several filter plates 33 are provided inside the purification box 32. The output end of the purification box 32 is connected to the input end of the suction pump 34. The suction pump 34 is fixedly provided on one side of the fixed plate. When welding is required, the argon arc welding machine can be set on the other side of the base plate, at a position opposite to the fixed plate (not shown in the figure). It can be installed according to actual use. Then, when the argon arc welding machine is welding, the suction pump 34 is started. The input end of the suction pump 34 draws air through the purification box 32 and the air inlet 31, so that the gas generated by the argon arc welding machine is drawn into the purification box 32. Then, it is filtered through the filter plates 33 and discharged, thereby reducing air pollution. It is worth noting that the suction pump 34 and the filter plates 33 in this application are both existing components.
[0033] The above embodiment discloses a welding fixture for an argon arc welding machine. When welding and fixing joints and pipes, if the joint is bent and cannot pass through the central perforation of the clamping turntable 11, in order to clamp and fix the joint, before clamping and fixing, the operator pushes the push rod to slide the stop block 21, causing the stop block 21 to disengage from the two stop racks 20. Then, the clamping frame 19 slides on the stop racks 20, adjusting the distance between one end of the clamping frame 19 and one side of the clamping turntable 11. After adjustment, the push rod is released, and under the action of the spring telescopic rod 22, the stop block 21 returns to the two stop racks 20, thus re-fixing the clamping frame 19. When clamping and fixing pipes or joints, the working rotating bevel gear 17 can be used. The bevel gear 17 meshes with the bevel ring 16 to drive the mounting plate to rotate. The spiral groove 15 on one side of the mounting plate cooperates with the protrusions on one side of several adjusting blocks 14, allowing the adjusting blocks 14 to adjust... The sliding motion within the groove allows several clamping frames 19 to clamp and fix one end of the weldment. Then, the threaded rod 25 is rotated, and under the action of the thread, the mounting plate 23 moves along the length of the guide rail 24, allowing the two weldments to be joined together. The motor 30 is started, and the output end of the motor 30 drives the third gear to rotate. The third gear drives the inner spline shaft 29 to rotate through the second gear. The inner spline shaft 29 drives the two outer spline shafts 28 to rotate. The outer spline shafts 28 drive the first gear to rotate respectively. The first gear drives the extension tube 12 to rotate through the idler gear 27 and the gear ring 26, causing the two clamping turntables 11 to rotate synchronously, thus facilitating the use of the argon arc welding machine by the operator. At the same time, the air pump 34 is started. The input end of the air pump 34 draws air through the purification box 32 and the air inlet 31, so that the gas generated during the argon arc welding is drawn into the purification box 32, and then filtered through the filter plate 33 before being discharged, thereby reducing air pollution.
[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A welding fixture for an argon arc welding machine, comprising a clamping turntable (11), two clamping turntables (11) being symmetrically arranged, a plurality of adjustment grooves arranged in a circular array on one side of each clamping turntable (11), an adjustment block (14) slidably disposed in each adjustment groove, a mounting plate rotatably disposed inside the clamping turntable (11), a spiral groove (15) disposed on one side of the mounting plate, a protrusion cooperating with the spiral groove (15) disposed on one side of each adjustment block (14), a bevel gear ring (16) fixedly disposed on the other side of the mounting plate, a bevel gear (17) meshing on the bevel gear ring (16), the bevel gear (17) rotatably disposed inside the clamping turntable (11), and a circular through hole disposed in the center of the clamping turntable (11), characterized in that, An extension tube (12) is fixedly provided on one side of the clamping turntable (11). Several support frames (13) are rotatably provided on the extension tube (12). The support frames (13) are all fixedly provided on the upper end of the mounting plate (23). Several support legs are provided at the bottom end of the mounting plate (23). Rollers are provided at one end of each support leg. The rollers are closely attached to the upper end of the base plate. A fixing frame (18) is fixedly provided on one side of the adjusting block (14). A clamping frame (19) is slidably provided on each fixing frame (18). An adjustment mechanism for adjusting the working position of the clamping frame (19) is provided inside the fixing frame (18). A drive mechanism for making the two clamping turntables (11) rotate synchronously is provided at the upper end of the base plate.
2. The welding fixture for an argon arc welding machine according to claim 1, characterized in that, The adjustment mechanism includes a stop rack (20) and a stop block (21). The upper end of the fixed frame (18) is provided with a rectangular through hole. The stop rack (20) is symmetrically arranged in the rectangular through hole. The stop block (21) is located inside one end of the clamping frame (19). The stop block (21) and the stop rack (20) are at the same height. The stop block (21) is fixedly located at one end of the push rod. The push rod is slidably located in the sliding hole at one end of the clamping frame (19). The bottom end of the stop block (21) is fixedly connected to the output end of the spring telescopic rod (22). The spring telescopic rod (22) is fixedly located inside the clamping frame (19).
3. The welding fixture for an argon arc welding machine according to claim 2, characterized in that, The fixing frame (18) has scales on both sides.
4. The welding fixture for an argon arc welding machine according to claim 3, characterized in that, The upper end of the clamping frame (19) is provided with a protective tube at one end of the push rod, and the length of the protective tube is greater than the exposed length of the push rod.
5. The welding fixture for an argon arc welding machine according to claim 1, characterized in that, The driving mechanism includes a gear ring (26), and a gear ring (26) is fixedly provided on each of the two extension tubes (12). An idler gear (27) is meshed on the gear ring (26). The two ends of the idler gear (27) are rotatably disposed between the two support frames (13). A first gear is meshed on each of the idler gears (27). A first rotating plate is rotatably disposed on the two ends of the first gear. The first rotating plate is fixedly disposed at the bottom end of the mounting plate (23). An external spline shaft (2) is fixedly disposed on one end of the first gear. 8) The two external spline shafts (28) are slidably disposed at both ends of the internal spline shaft (29). The external spline shafts (28) and the internal spline shafts (29) are connected by spline engagement. The internal spline shafts (29) are symmetrically rotated with second rotating plates. The second rotating plates are fixedly disposed on the upper end of the base plate. The internal spline shafts (29) are fixedly disposed with second gears. The second gears are meshed with third gears. The third gears are fixedly disposed on the output end of the motor (30). The motor (30) is fixedly disposed on the upper end of the base plate.
6. The welding fixture for an argon arc welding machine according to claim 1, characterized in that, The upper end of the base plate is provided with a guide rail (24) corresponding to the position of the bottom support leg of the mounting plate (23). The bottom end of the mounting plate (23) is fixedly provided with a sliding block. The sliding block is slidably provided with a guide slide rod. The guide slide rod is fixedly provided on the upper end of the base plate. The bottom end of the mounting plate (23) is fixedly provided with a threaded hole. The threaded hole is provided on one side. The threaded hole is fitted with a threaded rod (25). The two ends of the threaded rod (25) are rotatably provided with a third rotating plate. The third rotating plate is fixedly provided on the upper end of the base plate.
7. The welding fixture for an argon arc welding machine according to claim 1, characterized in that, A fixing plate is fixedly provided on one side of the base plate, and an air inlet head (31) is fixedly provided on one side of the fixing plate. The output end of the air inlet head (31) is connected to a purification box (32). The purification box (32) is fixedly provided on one side of the fixing plate. Several filter plates (33) are provided inside the purification box (32). The output end of the purification box (32) is connected to the input end of a vacuum pump (34). The vacuum pump (34) is fixedly provided on one side of the fixing plate.