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CN-117300285-B - Laser brazing equipment and method thereof

CN117300285BCN 117300285 BCN117300285 BCN 117300285BCN-117300285-B

Abstract

The invention discloses a laser brazing device and a method thereof, and relates to the technical field of laser welding, and the technical scheme is that the laser brazing device comprises a workbench, wherein the workbench is provided with an XYZ shaft transfer platform, one side of the XYZ shaft transfer platform is fixedly provided with a welding machine case, the bottom of the welding machine case is fixedly provided with a welding head, one side of the welding machine case is provided with a wire pulling mechanism, and the top of the workbench is provided with a fixing mechanism; the wire pulling mechanism comprises a pay-off reel, the pay-off reel is arranged inside a welding machine case, a welding wire is arranged on one side of the pay-off reel, a sleeve is fixedly arranged at the bottom of the welding machine case, a wire pulling shell is fixedly arranged on one side of the sleeve, the welding wire penetrates through the sleeve and the wire pulling shell, a wire pulling assembly is arranged inside the wire pulling shell and comprises two transmission shafts, the two transmission shafts are connected with the side wall of the wire pulling shell through bearings, wire feeding precision is improved, welding is conveniently conducted through a welding head, traction force is improved, the speed of the welding wire led out is equal to the welding speed, welding positioning precision is improved, and welding efficiency is improved.

Inventors

  • TANG ZHIWEI

Assignees

  • 福建新位激光科技有限公司

Dates

Publication Date
20260508
Application Date
20231117

Claims (9)

  1. 1. The laser brazing equipment comprises a workbench (1) and is characterized in that the workbench (1) is provided with an XYZ-axis transfer platform (5), a welding machine case (7) is fixedly arranged on one side of the XYZ-axis transfer platform (5), a welding head (25) is fixedly arranged at the bottom of the welding machine case (7), a wire pulling mechanism is arranged on one side of the welding machine case (7), and a fixing mechanism is arranged at the top of the workbench (1); The wire pulling mechanism comprises a wire releasing disc (26), the wire releasing disc (26) is arranged inside a welding machine case (7), a welding wire (24) is arranged on one side of the wire releasing disc (26), a sleeve (20) is fixedly arranged at the bottom of the welding machine case (7), a wire pulling shell (23) is fixedly arranged on one side of the sleeve (20), the welding wire (24) penetrates through the sleeve (20) and the wire pulling shell (23), a wire pulling assembly is arranged inside the wire pulling shell (23), the wire pulling assembly comprises two transmission shafts (33), the two transmission shafts (33) are connected with the side wall of the wire pulling shell (23) through bearings, a synchronous wheel (28) is fixedly sleeved outside the two transmission shafts (33), a synchronous belt (29) is sleeved outside the synchronous wheel (28), a second motor (22) is fixedly arranged on one side of the wire pulling shell (23), two limiting slide rails (45) are fixedly arranged inside the wire pulling shell (23), a plurality of wire pulling units (34) are arranged on one side of the synchronous belt (29), the wire pulling units (34) are connected with one side of the synchronous rod fixing rods (34), the synchronous rods (34) are connected with one side fixing rods (38), side slider (38) one side is equipped with connecting block (35), side slot (37) have been seted up to connecting block (35) lateral wall, side slider (38) run through side slot (37) and with side slot (37) sliding connection, side slot (37) inside fixed slide bar (30) that are equipped with, slide bar (30) run through side slider (38) and with side slider (38) sliding connection, slide bar (30) outside cover is equipped with first spring (39), connecting block (35) one side is fixed to be equipped with clamp plate (36), clamp plate (36) are contacted with pinch roller (27), connecting block (35) opposite side is fixed to be equipped with two plectane (40), two be connected with supporting wheel (41) through the bearing between plectane (40), supporting wheel (41) are contacted with spacing slide rail (45).
  2. 2. The laser brazing apparatus according to claim 1, wherein the fixing mechanism comprises a bottom sliding block (10), the bottom sliding block (10) is arranged at the bottom of the workbench (1), fixing components are arranged at two sides of the bottom sliding block (10), the fixing components comprise two square sleeves (12), the two square sleeves (12) are fixedly connected with the bottom sliding block (10), square rods (13) are arranged at one side of each square sleeve (12), the two square rods (13) extend into the two square sleeves (12) respectively, a fixing plate (14) is fixedly connected between the two square rods (13), a first electric push rod (11) is fixedly arranged at one side of the bottom sliding block (10), the output end of the first electric push rod (11) is fixedly connected with the fixing plate (14), a side plate (6) is fixedly arranged at one side of each square rod (13), an air cylinder (15) is fixedly connected with a movable block (16) at the output end of each air cylinder (15), a side plate (6) is fixedly arranged at one side, two connecting plates (17) are fixedly connected with one side of the two connecting plates (17) and one side (17) is fixedly connected with one connecting plate (17), the two telescopic rods (42) are fixedly sleeved with second springs (43), one ends of the two telescopic rods (42) are fixedly connected with connecting frames (44), and one sides of the connecting frames (44) are connected with pressing wheels (27) through bearings.
  3. 3. A laser brazing apparatus according to claim 1, wherein the work table (1) has a work body (4) on top thereof, the work body (4) being in contact with the pinch roller (27).
  4. 4. The laser brazing device according to claim 1, wherein a second electric push rod (19) is fixedly arranged on one side of the welding machine case (7), and a polishing head (18) is fixedly arranged on one side of the second electric push rod (19).
  5. 5. The laser brazing apparatus according to claim 1, wherein a tracking lens (21) is fixedly arranged on one side of the wire drawing shell (23).
  6. 6. A laser soldering apparatus according to claim 1, wherein a first pulley (31) is connected to the inside of the wire-drawing housing (23) through a bearing, the first pulley (31) is in contact with the welding wire (24), two second pulleys (32) are connected to the inside of the wire-drawing housing (23) through a bearing, and the two second pulleys (32) are in contact with the welding wire (24).
  7. 7. The laser brazing device of claim 1, wherein a bottom sliding groove (8) is formed in the bottom of the workbench (1), a screw rod (9) is connected to the bottom sliding groove (8) through a bearing, a first motor (2) is fixedly arranged on one side of the workbench (1), the output end of the first motor (2) is fixedly connected with the screw rod (9), the screw rod (9) penetrates through a bottom sliding block (10) and is connected with the bottom sliding block (10) through threads, and the bottom sliding block (10) is in sliding connection with the bottom sliding groove (8).
  8. 8. The laser brazing device according to claim 1, wherein supporting legs (3) are fixedly connected to four corners of the bottom of the workbench (1).
  9. 9. A method for laser brazing equipment is characterized by comprising the following specific steps: S1, placing a workpiece body (4) on a workbench (1), starting a first motor (2), driving a screw rod (9) to rotate by the first motor (2), driving a bottom sliding block (10) to move by the screw rod (9), driving a fixing component to move by the bottom sliding block (10), starting a first electric push rod (11), driving a fixing plate (14) to move by the first electric push rod (11), driving a square rod (13) to retract into a square sleeve (12) by the fixing plate (14), driving a side plate (6) to move by the square rod (13), driving a connecting plate (17) to move by the side plate (6), then starting an air cylinder (15), driving a movable block (16) to move downwards by the air cylinder (15), driving a connecting plate (17) to move downwards by the movable block (16), driving a telescopic rod (42) and a second spring (43), enabling a pressing wheel (27) to contact with the workpiece body (4), and enabling welding positions of the two workpiece bodies (4) to be fixed by pressing the pressing wheel (27) to be aligned; S2, starting a second motor (22), wherein the second motor (22) drives a transmission shaft (33) to rotate, the transmission shaft (33) drives a synchronous wheel (28) to rotate, the synchronous wheel (28) drives a synchronous belt (29) to rotate, the synchronous belt (29) drives a wire pulling unit to move, a supporting wheel (41) of the wire pulling unit is contacted with a limit sliding rail (45), the supporting wheel (41) drives a circular plate (40) to move, the circular plate (40) drives a connecting block (35) to move, the connecting block (35) drives a pressing plate (36) to move, the two pressing plates (36) drive a wire pulling unit assembly to move while the welding wires (24) are extruded, the pressing plate (36) of the wire pulling unit pulls the welding wires (24) to move, the welding wires (24) are led out of the end part of a wire pulling shell (23), wire feeding precision is improved, and welding heads (25) are convenient to weld; S3, controlling the welding machine case (7) to move through the XYZ-axis transfer platform, tracking the welding seam through the tracking lens (21), welding the welding seam, enabling a welding track to be clear, and polishing the welded position through the polishing head (18) according to the welding track.

Description

Laser brazing equipment and method thereof Technical Field The invention relates to the technical field of laser welding, in particular to laser brazing equipment and a method thereof. Background The main characteristic of laser brazing is to utilize the high energy density of laser to realize the rapid heating of local or micro area to complete the brazing process. The welding wire of current laser brazing carries through the transfer roller, and long-time rotation conveying can lead to the transfer roller wearing and tearing, and transfer roller and welding wire contact position frictional force reduce, lead to welding wire conveying dynamics not enough, and the speed that the welding wire was drawn forth can't keep up welding speed, and the wire precision of sending is not high, causes welding positioning accuracy poor, influences welding efficiency, and current welding equipment is inconvenient fixes the arc work piece, and the arc work piece skew easily influences the welding. Disclosure of Invention Therefore, the invention provides the laser brazing equipment and the method thereof, which aim to solve the problems that the welding wire for laser brazing is conveyed through the conveying roller, the friction force between the contact position of the conveying roller and the welding wire is reduced, the conveying force of the welding wire is insufficient, the speed of leading out the welding wire cannot keep up with the welding speed, the wire conveying precision is low, the welding positioning precision is poor, the welding efficiency is affected, the arc-shaped workpiece is inconvenient to fix, the arc-shaped workpiece is easy to deviate and the welding is affected by the conventional welding equipment. In order to achieve the aim, the invention provides the technical scheme that the laser brazing equipment and the method thereof comprise a workbench, wherein the workbench is provided with an XYZ shaft transfer platform, one side of the XYZ shaft transfer platform is fixedly provided with a welding machine case, the bottom of the welding machine case is fixedly provided with a welding head, one side of the welding machine case is provided with a wire pulling mechanism, and the top of the workbench is provided with a fixing mechanism; The wire pulling mechanism comprises a pay-off reel, the welding machine incasement portion is located to the pay-off reel, pay-off reel one side is equipped with the welding wire, welding machine incasement portion is fixed to be equipped with the sleeve pipe, sleeve pipe one side is fixed to be equipped with and is pulled the silk casing, the welding wire runs through sleeve pipe and is pulled the silk casing, it includes two transmission shafts to pull the inside silk subassembly that is equipped with of silk casing, two the transmission shaft passes through bearing connection with the silk casing lateral wall that pulls the silk subassembly, two the outside fixed cover of transmission shaft is equipped with the synchronizing wheel, two synchronizing wheel outside cover is equipped with the hold-in range, it is fixed to be equipped with the second motor to pull silk casing one side, second motor output and one of them transmission shaft fixed connection, it is fixed to be equipped with two spacing slide rails to pull silk casing inside, hold-in range one side is equipped with a plurality of pulling silk units, it includes the dead lever to pull silk unit, dead lever and dead lever one side fixedly connected with sideslip block, sideslip block one side is equipped with the connecting block, sideslip block lateral wall has seted up side groove, sideslip block run through side groove and side groove sliding connection, side groove inside is equipped with the synchronizing wheel, two side groove fixed connection and one side is equipped with the connecting block, two side through bearing connection, two side bearing roller, two side bearing fixed connection is equipped with the connecting plate. Preferably, the fixed establishment includes the bottom slider, the workstation bottom is located to the bottom slider, bottom slider both sides all are equipped with fixed subassembly, fixed subassembly includes two square sleeves, two square sleeve and bottom slider fixed connection, two square sleeve one side all is equipped with square pole, two square pole extends into two respectively square sleeve is inside, two fixedly connected with fixed plate between the square pole, bottom slider one side is fixed to be equipped with first electric putter, first electric putter output and fixed plate fixed connection, two square pole one side is fixed to be equipped with the curb plate, curb plate one side is fixed to be equipped with the cylinder, cylinder output fixedly connected with movable block, curb plate one side is equipped with two connecting plates, one of them connecting plate and movable block fixed connection, another one connecting plate and curb plate fixed connection,