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CN-224222935-U - Fixing device for CMT welding

CN224222935UCN 224222935 UCN224222935 UCN 224222935UCN-224222935-U

Abstract

The utility model belongs to the technical field of CMT welding and fixing devices, and particularly relates to a fixing device for CMT welding. The device comprises a supporting seat for placing two workpiece raw material plates to be welded, wherein two sides of the supporting seat are symmetrically provided with a calibration mechanism capable of moving towards the workpiece raw material plates and clamping the workpiece raw material plates at the same time, the device further comprises a pair of fixing tools for clamping the two workpiece raw material plates from the end parts, the two fixing tools are connected with the moving mechanism, so that the two fixing tools can move towards the workpiece raw material plates at the same time, and the two fixing tools are also connected with the turnover mechanism. According to the utility model, the calibration mechanism and the fixing tool are arranged, so that the stability of welding of the welding piece is improved, and the accurate butt joint of the welding piece is ensured.

Inventors

  • LV YANG
  • SUN NINGNING

Assignees

  • 马鞍山万智新能源科技有限公司

Dates

Publication Date
20260512
Application Date
20250521

Claims (8)

  1. 1. A fixing device for CMT welding is characterized by comprising a supporting seat (62) for placing two workpiece raw material plates (5) to be welded, wherein calibrating mechanisms (6) capable of simultaneously moving towards the workpiece raw material plates (5) and clamping the workpiece raw material plates (5) are symmetrically arranged on two sides of the supporting seat (62), the device further comprises a pair of fixing tools for clamping the two workpiece raw material plates (5) from the end parts, the two fixing tools are connected with a moving mechanism, so that the two fixing tools can move towards the workpiece raw material plates (5) at the same time, and the two fixing tools are also connected with a turnover mechanism.
  2. 2. A fixing device for CMT welding according to claim 1, wherein the calibrating mechanism (6) comprises a plurality of clamping blocks (65) which are arranged at intervals along two sides of the workpiece raw material plate (5) and a double-head double-shaft air cylinder (64) which is connected with the clamping blocks (65) at two sides, and the double-head double-shaft air cylinder (64) is fixedly arranged at the bottom end of the supporting seat (62).
  3. 3. The fixing device for CMT welding according to claim 1, wherein the fixing tool comprises a fixing seat (4), a threaded rod (43) is rotatably arranged on the fixing seat (4), a torsion wheel (41) capable of rotating the threaded rod (43) is arranged at the top of the threaded rod (43), a clamping seat (42) is connected to the fixing seat (4) in a sliding mode, a positioning seat (44) is fixedly arranged at the bottom of the fixing seat (4), and the clamping seat (42) is close to or far away from the positioning seat (44) to form a fixing structure for clamping or loosening a workpiece raw material plate (5).
  4. 4. A fixing device for CMT welding according to claim 3, further comprising a processing table (1), wherein the moving mechanism comprises a bidirectional screw rod (22) and a limiting rod (23) which are arranged in the accommodating cavity of the processing table (1) in parallel, one end of the bidirectional screw rod (22) is in transmission connection with the transmission end of the first servo motor (24), and the turnover mechanism is arranged on the bidirectional screw rod (22) and the limiting rod (23) through a moving frame.
  5. 5. A fixing device for CMT welding according to claim 4, wherein the movable frame comprises two fixing plates (2) which are oppositely arranged and supporting legs (21) which are fixed at the bottom of the fixing plates (2), the two supporting legs (21) at the bottom of the same fixing plate (2) are respectively sleeved on a bidirectional screw rod (22) and a limiting rod (23), and the turnover mechanism is arranged on the fixing plates (2).
  6. 6. A fixing device for CMT welding according to claim 4, further comprising a lifting assembly for vertically moving the support base (62), wherein the lifting assembly comprises a lifting cylinder (66) mounted in the processing table (1), the output end of the lifting cylinder (66) is connected with a long slat (61), the long slat (61) is symmetrically provided with connecting rods (63), and the support base (62) is mounted at one end of the connecting rods (63) far away from the long slat (61).
  7. 7. A fixing device for CMT welding according to claim 3, wherein the two sides of the fixing base (4) are provided with movable grooves (45) for limiting the clamping base (42).
  8. 8. A fixing device for CMT welding according to claim 5, wherein the turnover mechanism comprises a second servo motor (3) and a movable cylinder (7), wherein the second servo motor (3) is arranged on one fixing plate (2), the movable cylinder (7) is arranged on the other fixing plate (2), the output end of the second servo motor (3) is in transmission connection with one end, far away from a threaded rod (43), of the fixing seat (4), and the shaft end of the movable cylinder (7) is connected with the back of the other fixing seat (4), far away from one end of the second servo motor (3).

Description

Fixing device for CMT welding Technical Field The utility model belongs to the technical field of CMT welding, and particularly relates to a fixing device for CMT welding. Background CMT, a cold metal transition welding technique, is a novel welding process technique without spatter of welding slag. The cold metal transition welding technology is characterized in that in the molten drop transition process, a front welding wire pumping mechanism and a rear welding wire pumping mechanism are utilized to enable the welding wire to be fed discontinuously, welding wire electric arcs are ignited, molten drops are transited to a molten pool, the electric arcs are extinguished at the moment that the molten drops enter the molten pool, current is reduced, current is short-circuited, the welding wire starts to draw back to promote the falling of the molten drops, the current approaches zero, the molten drops are smoothly transited to the molten pool, welding wire electric arcs continue to burn, the molten drops are transited to the molten pool, and the welding process repeats a cold-hot cycle process. In the existing CMT welding process, the welding piece needs to be fixed and clamped, and the welding piece is generally fixed by adopting manual clamping or a large-sized fixing device. However, the manual clamping stability is poor, so that the welding effect is poor, meanwhile, two welding parts are difficult to accurately butt joint, the risk of defective rate is increased, and the large-scale fixing device cannot adapt to the fixation of welding parts with various sizes due to poor flexibility. Accordingly, there is a need for a fixture for CMT welding that addresses the above-described problems. Disclosure of utility model To overcome the above-mentioned drawbacks of the prior art, the present utility model provides a fixture for CMT welding. According to the utility model, the calibration mechanism and the fixing tool are arranged, so that the stability of welding of the welding piece is improved, and the accurate butt joint of the welding piece is ensured. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The device comprises a supporting seat for placing two workpiece raw material plates to be welded, two calibrating mechanisms capable of moving towards the workpiece raw material plates and clamping the workpiece raw material plates simultaneously are symmetrically arranged on two sides of the supporting seat, the device further comprises a pair of fixing tools used for clamping the two workpiece raw material plates from the end parts, the two fixing tools are connected with the moving mechanism, so that the two fixing tools can move the workpiece raw material plates at the same time, and the two fixing tools are further connected with the overturning mechanism. Preferably, the calibrating mechanism comprises a plurality of clamping supporting blocks which are arranged at intervals along two sides of the workpiece raw material plate and double-head double-shaft air cylinders which are connected with the clamping supporting blocks at two sides, and the double-head double-shaft air cylinders are fixedly arranged at the bottom end of the supporting seat. Preferably, the fixed frock includes the fixing base, rotates on the fixing base and is equipped with the threaded rod, and rotatable threaded rod's turn round is installed at the top of threaded rod, and sliding connection has the grip slipper on the fixing base, and the bottom fixed mounting on the fixing base has the positioning seat, and the grip slipper is close to or keeps away from the fixed knot that the positioning seat formed to press from both sides tightly or loosen the fixed knot of work piece raw materials board constructs. Preferably, the device further comprises a processing table, the moving mechanism comprises a bidirectional screw rod and a limiting rod which are arranged in the cavity of the processing table in parallel, one end of the bidirectional screw rod is in transmission connection with the transmission end of the first servo motor, and the turnover mechanism is arranged on the bidirectional screw rod and the limiting rod through a moving frame. Preferably, the movable frame comprises two fixed plates which are oppositely arranged and support legs which are fixed at the bottom of the fixed plates, the two support legs at the bottom of the same fixed plate are respectively sleeved on the bidirectional screw rod and the limiting rod, and the turnover mechanism is arranged on the fixed plates. Preferably, the device further comprises a lifting assembly for vertically moving the supporting seat, the lifting assembly comprises a lifting cylinder arranged in the processing table, the output end of the lifting cylinder is connected with a long slat, the long slat is symmetrically provided with a connecting rod, and the supporting seat is arranged at one end of the connecting rod far away fro