Laser welding equipment

Abstract

The invention relates to the technical field of welding equipment, in particular to laser welding equipment which comprises a bearing plate, an L-shaped side plate is arranged at the top of the bearing plate, a tri-axial moving mechanism is arranged on the inner top wall of the L-shaped side plate, a laser welding device is mounted on the tri-axial moving mechanism, and clamping mechanisms are arranged on the left side and the right side of the top of the bearing plate. A first cooling mechanism is arranged on the clamping mechanism, a heat exchange water tank is formed in the bottom of the bearing plate, a clamping hole groove is formed in the middle of the heat exchange water tank, a sealing cover plate is arranged at the bottom of the heat exchange water tank, a water changing mechanism is arranged at the bottom of the sealing cover plate, a positioning mechanism is arranged on the water changing mechanism, and a water storage tank and a water collecting tank are arranged on the two sides of the bearing plate correspondingly. A pushing mechanism is arranged on the back of the L-shaped side plate, and a second cooling mechanism is arranged on the pushing mechanism. The overall positioning effect on the machined gear is improved, three-stage cooling is achieved through cooperation of the first cooling mechanism, the second cooling mechanism and the heat exchange water tank, the machined gear can be rapidly cooled, and the machining efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to laser welding equipment. Background Art

[0002] Laser welding is a high-precision, non-contact welding method that can achieve precise welding of gears, effectively control the heat-affected zone and ensure welding quality. When the materials of the shaft and the tooth of the gear are inconsistent, the material hardness of the tooth must be higher than that of the shaft to meet the high-power transmission requirements. The gear ring is placed on the outside of the shaft and welded.

[0003] The Chinese invention patent with the publication number CN118492631A discloses a laser welding device for gear processing, including a housing and a processing gear placed above the housing, and a fixing plate is fixedly installed on the upper end of the housing, and a first reset spring is fixedly installed on the inner side of the fixing plate, and a clamp is fixedly installed on the inner side of the first reset spring. The laser welding device for gear processing is provided with a clamping plate capable of fixing and clamping the processing gear, and a first reset spring for compression is provided between the clamping plate and the fixing plate, which can limit and fix the processing gear, and at the same time, through the setting of the damping rod, when the reset first spring is clamped, if the processing gear vibrates, the reciprocating vibration force generated by the reset first spring can also be relieved under the setting of the damping rod to achieve the effect of shock absorption, and at the same time, through the setting of the fireproof and anti-skid pad on the inner side of the clamping plate, the temperature of the processing gear can be prevented from increasing during laser welding to damage the clamping plate, thereby improving the service life of the device and the stability during welding.

[0004] However, the above patent still has the following shortcomings in actual use: 1. This patent can clamp the processing gear through the cooperation of the clamp and the first reset spring. However, the clamp only clamps the two sides of the tooth portion of the processing gear and does not position the shaft portion of the processing gear. Once the shaft portion is accidentally offset, it will affect the welding quality between the tooth portion and the shaft portion. Moreover, the stability of clamping the tooth portion by the elastic force of the first reset spring is not good. The overall positioning effect of the processing gear is not good, which affects the welding quality; 2. After the processing gear is welded, the temperature of the processing gear itself is too high. Although this patent can push the processing gear out of the welding area through a hydraulic rod, the temperature of the processing gear itself cannot be cooled down quickly, and it needs to be left to cool down naturally. This method takes a long time and affects the processing efficiency of the processing gear. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a laser welding device to solve the problems raised in the above background technology on how to improve the overall positioning effect of the processed gear and how to improve the cooling efficiency of the processed gear.

[0006] The technical solution of the present invention is:

[0007] A laser welding device comprises a bearing plate, an L-shaped side plate is arranged on the top of the tail end of the bearing plate, a three-axial moving mechanism is arranged on the inner top wall of the L-shaped side plate, a laser welder is installed on the three-axial moving mechanism, a clamping mechanism for clamping and positioning the tooth portion is arranged on the left and right sides of the top of the bearing plate, a first cooling mechanism is arranged on the clamping mechanism, a heat exchange tank is opened at the bottom of the bearing plate, a clamping hole groove is arranged in the middle of the heat exchange tank, a sealing cover plate is arranged at the bottom of the sealing cover plate, and a heat exchange tank for cooling the inside of the heat exchange tank is arranged at the bottom of the sealing cover plate. A water changing mechanism for changing water is provided, the water changing mechanism is provided with a positioning mechanism for clamping and positioning the shaft, four supporting feet distributed in a rectangular shape are provided at the bottom of the supporting plate, a water storage tank and a collecting water tank are provided on both sides of the supporting plate, a feeding window is provided on the top of the water storage tank and the collecting water tank, a delivery pipe is provided on the side wall of the water storage tank and the collecting water tank, a water pump is provided on the delivery pipe, a pushing mechanism is provided on the back of the L-shaped side plate, a second cooling mechanism is provided on the pushing mechanism, and the first cooling mechanism and the water changing mechanism are connected to the water storage tank and the collecting water tank.

[0008] Preferably, the three-axial moving mechanism includes a first electric cylinder, a second electric cylinder and a first electric push rod, two first electric cylinders are provided, a U-shaped frame is installed on the slide of the second electric cylinder, the two first electric cylinders are symmetrically arranged on the inner top wall of the L-shaped side plate, the second electric cylinder is horizontally arranged on the slides of the two first electric cylinders, the first electric push rod is vertically arranged on the U-shaped frame, and the laser welder is fixedly connected to the output end of the first electric push rod.

[0009] Preferably, the clamping mechanism includes two clamping components symmetrically arranged on the supporting plate, the clamping component includes a first mounting plate and a second electric push rod, an L-shaped connecting plate is installed at the output end of the second electric push rod, and the bottom of the L-shaped connecting plate is provided with an abutment component for positioning a tooth of the tooth portion, the first mounting plate is vertically arranged on the top of the supporting plate, the second electric push rod is horizontally arranged on the back of the first mounting plate, the first cooling mechanism is arranged on the first mounting plate, and the first cooling mechanism is transmission-connected to the back of the L-shaped connecting plate.

[0010] Preferably, the abutment assembly comprises a mounting block, an abutment motor and a bidirectional screw, a mounting slot and two hanging plates are provided at the front of the mounting block, the two hanging plates are symmetrically arranged up and down, the mounting slot is located between the two hanging plates, a first abutment block is provided at the bottom of the front end of the hanging plate, two moving blocks are screwed on the bidirectional screw, a moving frame is installed on the moving block, rotating seats are provided on both sides of the head end of the moving frame, an abutment plate is rotatably provided between the two rotating seats, the abutment plate is located between the two first abutment blocks, a hinge seat is provided on the outer wall of the abutment plate, and a hinge seat is hinged on the hinge seat The slanted support plate has two first sliding columns symmetrically arranged in an upper and lower direction at one end of the slanted support plate, a first spring is provided at the tail end inside the moving frame, one end of the first spring is connected to a second abutment block, second sliding columns are provided on the upper and lower sides of the second abutment block, and moving slide grooves are provided on the upper and lower inner walls of the moving frame, the first sliding column and the second sliding column are both slidably arranged in the moving slide groove, the mounting block is fixedly connected to the bottom of the L-shaped connecting plate, the bidirectional screw is rotatably arranged on the mounting block, the abutment motor is fixedly connected to one side of the mounting block, and the output end of the abutment motor is connected to the bidirectional screw.

[0011] Preferably, the first cooling mechanism includes two cooling components, and the two cooling components are respectively arranged on the two first mounting plates, the cooling components include a first guide rod, a guide tube and a transfer tube, the first guide rod and the guide tube are each provided with two, the tail end of the first guide rod is provided with a first piston, the tail end of the guide tube is provided with a first water inlet head and a first water outlet head, the first water inlet head is provided with a first water inlet check valve, the first water outlet head is provided with a first water outlet check valve, a plurality of atomizing nozzles arranged at equal intervals are provided on the transfer tube, and connecting pipes are provided at both ends of the transfer pipe, and the first mounting plate is provided with two first guide holes symmetrically arranged and slidingly matched with the first guide rod, one end of the first guide rod is fixedly connected to the back of the L-shaped connecting plate, the two guide tubes are symmetrically arranged on the back of the first mounting plate, the first piston is sealingly slidably arranged in the guide tube, the two first water inlets are connected to the water tank through pipes, and the two first water outlets are connected to the two connecting pipes respectively through pipes.

[0012] Preferably, the water changing mechanism comprises a U-shaped bottom plate, a third electric push rod, a synchronous plate, a water inlet bucket and a water outlet bucket, a second piston is provided in the water inlet bucket for sealing and sliding, a third piston is provided in the water outlet bucket for sealing and sliding, a synchronous rod is provided at the bottom of the second piston and the third piston, a sliding hole which is slidably matched with the synchronous rod is provided at the bottom of the water inlet bucket and the water outlet bucket, a second water inlet head is provided on the outer wall of the water inlet bucket, a second water inlet check valve is provided in the second water inlet head, a second water outlet head is provided on the outer wall of the water outlet bucket, a second water outlet check valve is provided in the second water outlet head, and a symmetrically arranged water inlet head is provided on the sealing cover plate. A hole and a water outlet hole, a third water inlet check valve is arranged in the water inlet hole, a third water outlet check valve is arranged in the water outlet hole, the U-shaped bottom plate is invertedly arranged on the bottom of the sealing cover plate, the third electric push rod is vertically arranged on the bottom of the U-shaped bottom plate, the synchronous plate is horizontally connected to the output end of the third electric push rod, the water inlet bucket and the water outlet bucket are symmetrically arranged on the bottom of the sealing cover plate, the water outlet hole is located in the water inlet bucket, the water inlet hole is located in the water inlet bucket, the two synchronous rods are fixedly connected to the synchronous plate, the second water inlet head is connected to the water storage tank through a pipe, and the second water outlet head is connected to the collection water tank through a pipe.

[0013] Preferably, the positioning mechanism comprises an abutment column, a mounting cylinder and a fourth electric push rod, the head end of the abutment column is frustum-shaped, the tail end of the abutment column is provided with a stabilizing plate, the stabilizing plate is provided with a guide groove, the head end of the mounting cylinder is slidably provided with a plurality of telescopic blocks distributed at equal angles along its circumference, the bottom of the tail end of the telescopic block is provided with an abutting wedge surface that cooperates with the wedge surface of the head end of the abutment column, the tail end top of the telescopic block is provided with a vertically arranged second mounting plate, the second mounting plate is provided with a horizontally arranged second spring, one end of the second spring is connected to the inner wall of the mounting cylinder, the head end of the telescopic block is provided with a limiting convex strip, the inner wall of the mounting cylinder is provided with a guide strip that cooperates with the guide groove, the mounting cylinder is vertically mounted on the top of the synchronous plate, the mounting cylinder is located in the clamping hole groove, the fourth electric push rod is vertically arranged on the synchronous plate, the fourth electric push rod is located on the mounting cylinder, and the output end of the fourth electric push rod is fixedly connected to the stabilizing plate.

[0014] Preferably, the pushing mechanism includes a fifth electric push rod and a push block, the second cooling mechanism includes a second guide rod, an air cylinder and a spray head, a third mounting plate arranged vertically is provided on the top of the push block, a mounting seat is provided on the top of the third mounting plate, a fourth piston is provided in the air cylinder for sealing and sliding, an air inlet and an air outlet are provided on the outer wall of the head end of the air cylinder, a second guide hole which cooperates with the second guide rod for guiding is provided on the head end of the air cylinder, an air inlet check valve is provided in the air inlet, an air outlet check valve is provided in the air outlet, a suspension is further provided at the tail end of the bearing plate, an avoidance window is provided on the L-shaped side plate, the fifth electric push rod is horizontally arranged on the top of the suspension, the push block is fixedly connected to the output end of the fifth electric push rod, the air cylinder is horizontally arranged on the top of the fifth electric push rod, the head end of the second guide rod is fixedly connected to the back of the third mounting plate, the tail end of the second guide rod is fixedly connected to the fourth piston, the spray head is fixedly connected to the mounting seat, and the spray head is communicated with the air outlet through a pipeline.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Firstly, the present invention adopts a three-axial moving mechanism to drive the laser welder to perform welding operations, thereby improving the welding flexibility. The tooth portion is clamped by a clamping mechanism, and the shaft portion is positioned and clamped by a positioning mechanism, thereby improving the overall positioning effect of the processed gear. The three-stage cooling is achieved through the cooperation between the first cooling mechanism, the second cooling mechanism and the heat exchange water tank, so that the processed gear can be cooled quickly, thereby improving the processing efficiency.

[0017] Secondly, the first cooling mechanism can simultaneously spray water mist while releasing the positioning clamping of the tooth portion by the clamping mechanism, so as to cool the processed gear by using the water mist.

[0018] Thirdly, when the welded processing gear is pushed, the second cooling mechanism can synchronously spray gas to cool the processing gear using the sprayed gas, and can also blow away the smoke to prevent the smoke from affecting subsequent welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the laser welding equipment of the present invention;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the three-axial moving mechanism of the present invention;

[0021] Figure 3 The local structure of the laser welding equipment of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 4 It is a structural schematic diagram of the abutment assembly of the present invention;

[0023] Figure 5 is a partial cross-sectional view of the first cooling mechanism of the present invention;

[0024] Figure 6 The local structure of the laser welding equipment of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 7 It is a partial cross-sectional view of the water changing mechanism of the present invention;

[0026] Figure 8 A partial cross-sectional view of the positioning mechanism of the present invention;

[0027] Fig. 9 for Figure 8 The enlarged view of point A in the middle;

[0028] Fig.10 It is a schematic structural diagram of the pushing mechanism and the third cooling mechanism of the present invention.

[0029] In the figure:

[0030] 1. Carrying plate; 11. L-shaped side plate; 111. Avoidance window; 12. Heat exchange tank; 13. Clamping hole slot; 14. Sealing cover plate; 141. Water inlet hole; 1411. Third water inlet check valve; 142. Water outlet hole; 1421. Third water outlet check valve; 15. Support foot; 16. Suspension; 2. Three-axis moving mechanism; 21. First electric cylinder; 22. Second electric cylinder; 221. U-shaped frame; 23. First electric push rod; 3. Laser welder; 4. Clamping mechanism; 41. Clamping assembly; 411. First mounting plate; 412. Second electric push rod; 4121. L-shaped connecting plate; 42. Connecting assembly; 421, mounting block; 4211, mounting groove; 422, abutting motor; 423, bidirectional screw; 424, hanging plate; 4241, first abutting block; 425, moving frame; 4251, rotating seat; 4252, first spring; 4253, second abutting block; 4254, second slide column; 4255, moving slide groove; 426, abutting plate; 4261, hinged seat; 427, diagonal support plate; 4271, first slide column; 5, first cooling mechanism; 51, first guide rod; 511, first piston; 52, guide tube; 53, transfer tube; 531, atomizing nozzle; 532, connecting 54, first water inlet head; 541, first water inlet check valve; 55, first water outlet head; 551, first water outlet check valve; 6, water changing mechanism; 61, U-shaped bottom plate; 62, third electric push rod; 63, synchronous plate; 64, water inlet bucket; 641, second piston; 642, second water inlet head; 6421, second water inlet check valve; 65, water outlet bucket; 651, third piston; 652, second water outlet head; 6521, second water outlet check valve; 66, synchronous rod; 7, positioning mechanism; 71, abutment column; 72, installation cylinder; 721, guide strip; 73, fourth electric push rod; 74, stabilizing Fixed plate; 741, guide groove; 75, telescopic block; 751, abutting wedge surface; 752, second mounting plate; 753, second spring; 754, limiting convex strip; 8, water storage tank; 81, feed window; 82, delivery pipe; 83, water pump; 9, collecting water tank; 10, pushing mechanism; 101, fifth electric push rod; 102, pushing block; 103, third mounting plate; 104, mounting seat; 20, second cooling mechanism; 201, second guide rod; 202, air cylinder; 2021, fourth piston; 203, air inlet; 204, air outlet; 205, jet head; 30, tooth portion; 40, shaft portion. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-10 The present invention describes the above technical solution in detail through the following embodiments:

[0033] A laser welding device comprises a bearing plate 1, an L-shaped side plate 11 is arranged at the top of the tail end of the bearing plate 1, a three-axial moving mechanism 2 is arranged on the inner top wall of the L-shaped side plate 11, a laser welder 3 is installed on the three-axial moving mechanism 2, a clamping mechanism 4 for clamping and positioning a tooth portion 30 is arranged on the left and right sides of the top of the bearing plate 1, a first cooling mechanism 5 is arranged on the clamping mechanism 4, a heat exchange tank 12 is opened at the bottom of the bearing plate 1, a clamping hole groove 13 is arranged in the middle of the heat exchange tank 12, a sealing cover plate 14 is arranged at the bottom of the heat exchange tank 12, and a sealing cover plate 14 is arranged at the bottom of the sealing cover plate 14 for exchanging water inside the heat exchange tank 12 A water changing mechanism 6 is provided, and a positioning mechanism 7 for clamping and positioning the shaft portion 40 is provided on the water changing mechanism 6. Four supporting feet 15 distributed in a rectangular shape are provided at the bottom of the carrying plate 1. A water storage tank 8 and a collecting water tank 9 are provided on both sides of the carrying plate 1 respectively. A feeding window 81 is provided on the top of the water storage tank 8 and the collecting water tank 9. A delivery pipe 82 is provided on the side wall of the water storage tank 8 and the collecting water tank 9, and a water pump 83 is provided on the delivery pipe 82. A pushing mechanism 10 is provided on the back of the L-shaped side plate 11, and a second cooling mechanism 20 is provided on the pushing mechanism 10. The first cooling mechanism 5 and the water changing mechanism 6 are connected to the water storage tank 8 and the collecting water tank 9.

[0034] The present invention adopts a three-axial moving mechanism 2 to drive the laser welder 3 to perform welding operations, thereby improving welding flexibility. The tooth portion 30 is positioned and clamped by the clamping mechanism 4, and the shaft portion 40 is positioned and clamped by the positioning mechanism 7, thereby improving the overall positioning effect of the processed gear. The three-stage cooling is achieved through the cooperation between the first cooling mechanism 5, the second cooling mechanism 20 and the heat exchange water tank 12, so that the processed gear can be cooled quickly and the processing efficiency is improved.

[0035] The three-axial moving mechanism 2 includes a first electric cylinder 21, a second electric cylinder 22 and a first electric push rod 23. There are two first electric cylinders 21. A U-shaped frame 221 is installed on the slide of the second electric cylinder 22. The two first electric cylinders 21 are symmetrically arranged on the inner top wall of the L-shaped side plate 11. The second electric cylinder 22 is horizontally arranged on the slides of the two first electric cylinders 21. The first electric push rod 23 is vertically arranged on the U-shaped frame 221. The laser welder 3 is fixedly connected to the output end of the first electric push rod 23.

[0036] The first electric cylinder 21 can drive the second electric cylinder 22 to move left and right, the second electric cylinder 22 can drive the U-shaped frame 221 and the first electric push rod 23 to move forward and backward, and the first electric push rod 23 drives the laser welder 3 to move up and down, that is, the laser welder 3 can perform three-axial movement of front and back, left and right, up and down.

[0037] The clamping mechanism 4 includes two clamping components 41 symmetrically arranged on the supporting plate 1, the clamping component 41 includes a first mounting plate 411 and a second electric push rod 412, an L-shaped connecting plate 4121 is installed at the output end of the second electric push rod 412, and an abutment component 42 for positioning a tooth of the tooth portion 30 is provided at the bottom of the L-shaped connecting plate 4121, the first mounting plate 411 is vertically arranged on the top of the supporting plate 1, the second electric push rod 412 is horizontally arranged on the back of the first mounting plate 411, and the first cooling mechanism 5 is arranged on the first mounting plate 411, and the first cooling mechanism 5 is transmission-connected to the back of the L-shaped connecting plate 4121.

[0038] The abutment assembly 42 includes a mounting block 421, an abutment motor 422 and a bidirectional screw 423. A mounting groove 4211 and two hanging plates 424 are provided at the front of the mounting block 421. The two hanging plates 424 are symmetrically arranged up and down. The mounting groove 4211 is located between the two hanging plates 424. A first abutment block 4241 is provided at the bottom of the front end of the hanging plate 424. Two moving blocks are screwed on the bidirectional screw 423. A moving frame 425 is installed on the moving block. Both sides of the head end of the moving frame 425 are provided with a rotating seat 4251. An abutment plate 426 is rotatably provided between the two rotating seats 4251. The abutment plate 426 is located between the two first abutment blocks 4241. A hinge seat 4261 is provided on the outer wall of the abutment plate 426. A diagonal support plate 427 is hinged on the hinge seat 4261. One end of the diagonal support plate 427 is provided with two first sliding columns 4271 which are symmetrically arranged in the upper and lower parts. A first spring 4252 is provided at the tail end inside the moving frame 425. One end of the first spring 4252 is connected with a second abutting block 4253. Second sliding columns 4254 are provided on the upper and lower sides of the second abutting block 4253. Moving slide grooves 4255 are provided on the upper and lower inner walls of the moving frame 425. The first sliding column 4271 and the second sliding column 4254 are both slidably arranged in the moving slide grooves 4255. The mounting block 421 is fixedly connected to the bottom of the L-shaped connecting plate 4121. The bidirectional screw 423 is rotatably arranged on the mounting block 421. The abutting motor 422 is fixedly connected to one side of the mounting block 421, and the output end of the abutting motor 422 is connected to the bidirectional screw 423.

[0039] The second electric push rod 412 drives the L-shaped connecting plate 4121 to move forward, and the L-shaped connecting plate 4121 can drive the abutment assembly 42 to move forward. The ends of the two abutment plates 426 away from the rotating seat 4251 gradually approach the two sides of a tooth on the tooth portion 30, and then the abutment plate 426 abuts against the side wall of the tooth and rotates. The abutment plate 426 drives the hinge seat 4261 to rotate synchronously around the rotation point of the rotating seat 4251, and the hinge seat 4261 drives the other end of the diagonal support plate 427 to move synchronously. Then, the two first sliding columns 4271 on one end of the diagonal support plate 427 move in the moving slide groove 4255, and one end of the diagonal support plate 427 abuts against the second abutment The first spring 4252 is compressed, and then the end of the tooth abuts against the two first abutment blocks 4241. The elastic force of the two first springs 4252 can make the two abutment plates 426 tightly abut against the tooth, so that the tooth portion 30 can be stably positioned and clamped. The abutment motor 422 can drive the bidirectional screw 423 to rotate, and the bidirectional screw 423 can drive the two moving blocks to move. The moving directions of the two moving blocks are always opposite, so that the entire clamping mechanism 4 can clamp and position processing gears of various sizes.

[0040] The first cooling mechanism 5 includes two cooling components, which are respectively arranged on the two first mounting plates 411. The cooling components include a first guide rod 51, a guide tube 52 and a transfer tube 53. The first guide rod 51 and the guide tube 52 are each provided with two. The tail end of the first guide rod 51 is provided with a first piston 511, the tail end of the guide tube 52 is provided with a first water inlet head 54 and a first water outlet head 55, the first water inlet head 54 is provided with a first water inlet check valve 541, the first water outlet head 55 is provided with a first water outlet check valve 551, and the transfer tube 53 is provided with a plurality of equidistantly arranged The atomizing nozzle 531, both ends of the transfer pipe 53 are provided with connecting pipes 532, the first mounting plate 411 is provided with two symmetrically arranged first guide holes that slide with the first guide rod 51, one end of the first guide rod 51 is fixedly connected to the back of the L-shaped connecting plate 4121, the two guide pipes 52 are symmetrically arranged on the back of the first mounting plate 411, the first piston 511 is sealingly slidably arranged in the guide pipe 52, the two first water inlet heads 54 are connected to the water tank 8 through pipes, and the two first water outlet heads 55 are connected to the two connecting pipes 532 respectively through pipes.

[0041] When the second electric push rod 412 drives the L-shaped connecting plate 4121 to move forward, the L-shaped connecting plate 4121 also drives the two first guide rods 51 to move forward synchronously, and the first guide rod 51 drives the first piston 511 to move forward synchronously in the guide tube 52. The first piston 511 generates a pumping force in the guide tube 52, and the pumping force can drive the water in the water tank 8 into the first water inlet head 54 through the pipeline, and then enter the guide tube 52 through the first water inlet check valve 541. After the welding work is completed, the second electric push rod 412 drives the L-shaped connecting plate 4121 to move backward, that is, the machining gear is released. During the clamping operation, the L-shaped connecting plate 4121 drives the two first guide rods 51 to move backward, and the first guide rod 51 drives the first piston 511 to move backward. The first piston 511 applies an extrusion force to the guide tube 52, and the extrusion force can squeeze the water in the guide tube 52 out from the first water outlet head 55. The water passes through the first water outlet one-way valve 551 and the pipeline into the connecting pipe 532, and then enters the transfer pipe 53, and finally is sprayed out from all the atomizing nozzles 531. The atomized water can not only perform heat exchange and cooling on the high temperature around the processed gear, but also perform heat exchange and cooling on the surface of the processed gear.

[0042] The water changing mechanism 6 includes a U-shaped bottom plate 61, a third electric push rod 62, a synchronous plate 63, a water inlet bucket 64 and a water outlet bucket 65. A second piston 641 is provided in the water inlet bucket 64 for sealing and sliding, and a third piston 651 is provided in the water outlet bucket 65 for sealing and sliding. The bottoms of the second piston 641 and the third piston 651 are both provided with a synchronous rod 66. The bottoms of the water inlet bucket 64 and the water outlet bucket 65 are both provided with a sliding hole that slides with the synchronous rod 66. A second water inlet head 642 is provided on the outer wall of the water inlet bucket 64, and a second water inlet check valve 6421 is provided in the second water inlet head 642. A second water outlet head 652 is provided on the outer wall of the water outlet bucket 65, and a second water outlet check valve 6521 is provided in the second water outlet head 652. The sealing cover plate 14 is provided with symmetrically arranged water inlet holes. 141 and a water outlet hole 142, a third water inlet check valve 1411 is provided in the water inlet hole 141, a third water outlet check valve 1421 is provided in the water outlet hole 142, the U-shaped bottom plate 61 is invertedly arranged on the bottom of the sealing cover plate 14, the third electric push rod 62 is vertically arranged on the bottom of the U-shaped bottom plate 61, the synchronous plate 63 is horizontally connected to the output end of the third electric push rod 62, the water inlet bucket 64 and the water outlet bucket 65 are symmetrically arranged on the bottom of the sealing cover plate 14, the water outlet hole 142 is located in the water inlet bucket 64, the water inlet hole 141 is located in the water inlet bucket 64, the two synchronous rods 66 are fixedly connected to the synchronous plate 63, the second water inlet head 642 is connected to the water storage tank 8 through a pipeline, and the second water outlet head 652 is connected to the collecting water tank 9 through a pipeline.

[0043] The high temperature generated by the laser welder 3 when welding the processed gear can continuously exchange heat with the water in the heat exchange tank 12. Of course, the carrier plate 1 needs to have good thermal conductivity. After the processing gear is welded, the water in the heat exchange tank 12 also rises, so that the next processing gear cannot be heat exchanged. The water in the heat exchange tank 12 needs to be replaced with water with a lower temperature. The water replacement process is as follows:

[0044] When the third electric push rod 62 drives the synchronous plate 63 to move downward, the synchronous plate 63 drives the two synchronous rods 66 to move downward synchronously, and one synchronous rod 66 drives the second piston 641 to move downward in the water inlet barrel 64, and the second piston 641 generates a pumping force in the water inlet barrel 64. The pumping force can pump the low-temperature water in the water storage tank 8 into the second water inlet head 642 through the pipeline, and then enter the water inlet barrel 64 through the second water inlet check valve 6421. The other synchronous rod 66 drives the third piston 651 to move downward in the water outlet. The third piston 651 also generates an extraction force in the water outlet barrel 65, and the extraction force can drive the high-temperature water in the heat exchange water tank 12 into the water outlet barrel 65 through the third water inlet check valve 1411. When the third electric push rod 62 drives the synchronous plate 63 to move upward, the synchronous plate 63 drives the two synchronous rods 66 to move upward synchronously, and one synchronous rod 66 drives the second piston 641 to move upward in the water inlet barrel 64. The second piston 641 generates an extrusion force in the water inlet barrel 64, and the extrusion force can The low-temperature water in the water inlet bucket 64 is squeezed, and the low-temperature water can enter the heat exchange tank 12 through the third water outlet check valve 1421. Another synchronous rod 66 drives the third piston 651 to move upward in the water outlet bucket 65. The third piston 651 also generates an extrusion force in the water outlet bucket 65. The extrusion force squeezes the high-temperature water in the water outlet bucket 65 into the second water outlet head 652, and then enters the collection water tank 9 through the second water outlet check valve 6521 and the pipeline. The high-temperature water is collected in the collection water tank 9. Through natural cooling, the water in the water collection tank 9 can be transported back to the water storage tank 8. A pipe is connected to the delivery pipe 82 on the water collection tank 9, and the pipe is passed into the water storage tank 8. Then, the delivery can be completed by the operation of the water pump 83, so as to realize the recycling of water. Of course, water will be lost during the recycling. Therefore, a pipe is connected to the delivery pipe 82 on the water storage tank 8, and the pipe is connected to the water source. Then, the low-temperature water at the water source is pumped into the water storage tank 8 by the water pump 83, so as to ensure sufficient low-temperature water.

[0045] The positioning mechanism 7 includes an abutment column 71, a mounting cylinder 72 and a fourth electric push rod 73. The head end of the abutment column 71 is in a cone shape, and a stabilizing plate 74 is provided at the tail end of the abutment column 71. A guide groove 741 is provided on the stabilizing plate 74. A plurality of telescopic blocks 75 distributed at equal angles along its circumference are slidably provided at the head end of the mounting cylinder 72. An abutment wedge surface 751 is provided at the bottom of the tail end of the telescopic block 75 to cooperate with the wedge surface at the head end of the abutment column 71. A second mounting plate 752 is provided at the top of the tail end of the telescopic block 75. A second mounting plate 752 is provided to A second spring 753 is arranged horizontally, and one end of the second spring 753 is connected to the inner wall of the mounting tube 72. A limiting convex strip 754 is provided at the head end of the telescopic block 75. A guide strip 721 cooperating with the guide groove 741 is provided on the inner wall of the mounting tube 72. The mounting tube 72 is vertically mounted on the top of the synchronous plate 63. The mounting tube 72 is located in the clamping hole groove 13. The fourth electric push rod 73 is vertically arranged on the synchronous plate 63. The fourth electric push rod 73 is located on the mounting tube 72. The output end of the fourth electric push rod 73 is fixedly connected to the stabilizing disk 74.

[0046] When the third electric push rod 62 drives the synchronous plate 63 to move upward, the installation cylinder 72 and the fourth electric push rod 73 also move upward synchronously, the head end of the installation cylinder 72 extends out from the clamping hole groove 13, and the head end of the installation cylinder 72 enters the hole of the shaft portion 40, and then the fourth electric push rod 73 drives the stabilizing plate 74 to move upward, and the stabilizing plate 74 drives the abutting column 71 to move upward, and the cooperation of the guide groove 741 and the guide strip 721 improves the stability of the upward movement of the stabilizing plate 74 and the abutting column 71, and the head end of the abutting column 71 can abut against the abutting wedge surfaces 751 of all the telescopic blocks 75, and then All telescopic blocks 75 extend outward, and the telescopic blocks 75 drive the second mounting plate 752 to move synchronously. The second spring 753 is compressed, and the head end of the telescopic block 75 abuts against the inner wall of the hole of the shaft portion 40, thereby realizing the positioning and clamping of the shaft portion 40. When the third electric push rod 62 drives the synchronous plate 63 to move downward, the abutment column 71 also moves downward accordingly, and the abutment column 71 gradually separates from all the telescopic blocks 75. The second spring 753 can drive the telescopic block 75 to reset, and the positioning and clamping of the shaft portion 40 is released. The limiting convex strip 754 can limit the retracted position of the telescopic block 75.

[0047] The pushing mechanism 10 includes a fifth electric push rod 101 and a push block 102, the second cooling mechanism 20 includes a second guide rod 201, an air cylinder 202 and an air jet head 205, the top of the push block 102 is provided with a third mounting plate 103 which is vertically arranged, the top of the third mounting plate 103 is provided with a mounting seat 104, a fourth piston 2021 is provided in the air cylinder 202 for sealing and sliding, an air inlet 203 and an air outlet 204 are provided on the outer wall of the head end of the air cylinder 202, a second guide hole which cooperates with the second guide rod 201 for guiding is opened at the head end of the air cylinder 202, an air inlet check valve is provided in the air inlet 203, and a check valve is provided in the air outlet 204. There is an air outlet one-way valve, a suspension 16 is also provided at the tail end of the supporting plate 1, an avoidance window 111 is opened on the L-shaped side plate 11, the fifth electric push rod 101 is horizontally arranged on the top of the suspension 16, the push block 102 is fixedly connected to the output end of the fifth electric push rod 101, the air cylinder 202 is horizontally arranged on the top of the fifth electric push rod 101, the head end of the second guide rod 201 is fixedly connected to the back of the third mounting plate 103, the tail end of the second guide rod 201 is fixedly connected to the fourth piston 2021, the nozzle 205 is fixedly connected to the mounting seat 104, and the nozzle 205 is connected to the air outlet 204 through a pipeline.

[0048] After welding is completed, the fifth electric push rod 101 drives the push block 102 to move forward, the push block 102 drives the third mounting plate 103 to move forward synchronously, the third mounting plate 103 drives the second guide rod 201 to move forward synchronously, the second guide rod 201 drives the fourth piston 2021 to move forward in the gas cylinder 202, the fourth piston 2021 generates an extrusion force in the gas cylinder 202, the gas passes through the gas outlet one-way valve, the gas outlet 204 and the pipeline into the nozzle 205, and then the gas is ejected from the nozzle 205. The ejected gas can not only perform heat exchange with the processed gear, but also blow the air around the processed gear outward to prevent smoke from affecting the welding operation of the next processed gear. The fifth electric push rod 101 drives the push block 102 to move backward, and then the second guide rod 201 drives the fourth piston 2021 to move backward in the air cylinder 202. The fourth piston 2021 generates an extraction force in the air cylinder 202, and the outside air can enter the air cylinder 202 through the air intake check valve and the air intake port 203.

[0049] Working principle: first place the processing gear on the top of the carrier plate 1, align the hole of the shaft 40 with the clamping hole groove 13, then the third electric push rod 62 on the water changing mechanism 6 drives the synchronous plate 63 and the positioning mechanism 7 to move upward, then the positioning mechanism 7 works to position the shaft 40, and the water changing mechanism 6 also changes the water in the heat exchange water tank 12, then the clamping mechanism 4 works, the clamping mechanism 4 clamps and positions the tooth portion 30, then the three-axial moving mechanism 2 drives the laser welder 3 to weld the processing gear, during welding, the water in the heat exchange water tank 12 can be cooled down for the first time with the processing gear, after welding is completed, the clamping mechanism 4 releases the clamping positioning of the tooth portion 30, when releasing, the first cooling mechanism 5 can spray water mist to cool the processing gear for the second time, then the pushing mechanism 10 works to push the processing gear forward, when the pushing mechanism 10 works, the second cooling mechanism 20 can spray water to cool the processing gear for the third time.

Claims

1. A laser welding device, characterized in that: The invention comprises a bearing plate (1), wherein an L-shaped side plate (11) is provided at the top of the rear end of the bearing plate (1), a three-axial moving mechanism (2) is provided on the inner top wall of the L-shaped side plate (11), a laser welder (3) is installed on the three-axial moving mechanism (2), a clamping mechanism (4) for clamping and positioning the tooth portion (30) is provided on the left and right sides of the top of the bearing plate (1), a first cooling mechanism (5) is provided on the clamping mechanism (4), a heat exchange tank (12) is provided at the bottom of the bearing plate (1), a clamping hole groove (13) is provided in the middle of the heat exchange tank (12), a sealing cover plate (14) is provided at the bottom of the heat exchange tank (12), and a water changing mechanism (6) for changing water inside the heat exchange tank (12) is provided at the bottom of the sealing cover plate (14), The water changing mechanism (6) is provided with a positioning mechanism (7) for clamping and positioning the shaft portion (40); the bottom of the supporting plate (1) is provided with four supporting feet (15) distributed in a rectangular shape; the two sides of the supporting plate (1) are respectively provided with a water storage tank (8) and a water collecting tank (9); the tops of the water storage tank (8) and the water collecting tank (9) are both provided with a feeding window (81); the side walls of the water storage tank (8) and the water collecting tank (9) are provided with a delivery pipe (82); the delivery pipe (82) is provided with a water pump (83); the back of the L-shaped side plate (11) is provided with a pushing mechanism (10); the pushing mechanism (10) is provided with a second cooling mechanism (20); the first cooling mechanism (5) and the water changing mechanism (6) are both connected to the water storage tank (8) and the water collecting tank (9).

2. The laser welding equipment according to claim 1, characterized in that: The three-axial moving mechanism (2) comprises a first electric cylinder (21), a second electric cylinder (22) and a first electric push rod (23); two first electric cylinders (21) are provided; a U-shaped frame (221) is installed on the slide table of the second electric cylinder (22); the two first electric cylinders (21) are symmetrically arranged on the inner top wall of the L-shaped side plate (11); the second electric cylinder (22) is horizontally arranged on the slide tables of the two first electric cylinders (21); the first electric push rod (23) is vertically arranged on the U-shaped frame (221); and the laser welder (3) is fixedly connected to the output end of the first electric push rod (23).

3. The laser welding equipment according to claim 1, characterized in that: The clamping mechanism (4) comprises two clamping assemblies (41) symmetrically arranged on the bearing plate (1), the clamping assembly (41) comprising a first mounting plate (411) and a second electric push rod (412), an L-shaped connecting plate (4121) being installed at the output end of the second electric push rod (412), an abutment assembly (42) for positioning a tooth of the tooth portion (30) being provided at the bottom of the L-shaped connecting plate (4121), the first mounting plate (411) being vertically arranged on the top of the bearing plate (1), the second electric push rod (412) being horizontally arranged on the back of the first mounting plate (411), the first cooling mechanism (5) being arranged on the first mounting plate (411), and the first cooling mechanism (5) being drivingly connected to the back of the L-shaped connecting plate (4121).

4. The laser welding equipment according to claim 3, characterized in that: The abutment assembly (42) comprises a mounting block (421), an abutment motor (422) and a bidirectional screw (423); a mounting groove (4211) and two hanging plates (424) are provided at the front of the mounting block (421); the two hanging plates (424) are symmetrically arranged in an upper and lower manner; the mounting groove (4211) is located between the two hanging plates (424); a first abutment block (4241) is provided at the bottom of the front end of the hanging plate (424); and the bidirectional screw (423) is provided at the bottom of the front end of the hanging plate (424). 3) having two moving blocks screwed thereon, a moving frame (425) being mounted on the moving block, a rotating seat (4251) being provided on both sides of the head end of the moving frame (425), an abutment plate (426) being rotatably provided between the two rotating seats (4251), the abutment plate (426) being located between the two first abutment blocks (4241), a hinge seat (4261) being provided on the outer wall of the abutment plate (426), and a diagonal brace being hingedly provided on the hinge seat (4261) The movable frame (425) is provided with a first sliding column (4271) symmetrically arranged in the upper and lower directions at one end of the inclined support plate (427), a first spring (4252) is provided at the rear end inside the movable frame (425), one end of the first spring (4252) is connected to a second abutting block (4253), and second sliding columns (4254) are provided on both upper and lower sides of the second abutting block (4253), and movable sliding grooves (4254) are provided on the upper and lower inner walls of the movable frame (425). 4255), the first sliding column (4271) and the second sliding column (4254) are both slidably set in the movable sliding groove (4255), the mounting block (421) is fixedly connected to the bottom of the L-shaped connecting plate (4121), the bidirectional screw (423) is rotatably set on the mounting block (421), the abutment motor (422) is fixedly connected to one side of the mounting block (421), and the output end of the abutment motor (422) is connected to the bidirectional screw (423).

5. The laser welding equipment according to claim 3, characterized in that: The first cooling mechanism (5) comprises two cooling components, the two cooling components are respectively arranged on two first mounting plates (411), the cooling components comprise a first guide rod (51), a guide tube (52) and a transfer tube (53), the first guide rod (51) and the guide tube (52) are each provided with two, the tail end of the first guide rod (51) is provided with a first piston (511), the tail end of the guide tube (52) is provided with a first water inlet head (54) and a first water outlet head (55), the first water inlet head (54) is provided with a first water inlet check valve (541), the first water outlet head (55) is provided with a first water outlet check valve (551), and the transfer tube (53) is provided with a plurality of equal valves. The atomizing nozzle (531) is arranged at a distance from each other, and connecting pipes (532) are arranged at both ends of the transfer pipe (53). The first mounting plate (411) is provided with two first guide holes which are symmetrically arranged and slidably matched with the first guide rod (51). One end of the first guide rod (51) is fixedly connected to the back of the L-shaped connecting plate (4121). The two guide pipes (52) are symmetrically arranged on the back of the first mounting plate (411). The first piston (511) is sealingly slidably arranged in the guide pipe (52). The two first water inlet heads (54) are connected to the water storage tank (8) through pipelines, and the two first water outlet heads (55) are connected to the two connecting pipes (532) through pipelines.

6. The laser welding equipment according to claim 1, characterized in that: The water exchange mechanism (6) comprises a U-shaped bottom plate (61), a third electric push rod (62), a synchronous plate (63), a water inlet bucket (64) and a water outlet bucket (65); a second piston (641) is provided in a sealing and sliding manner in the water inlet bucket (64); a third piston (651) is provided in a sealing and sliding manner in the water outlet bucket (65); the bottoms of the second piston (641) and the third piston (651) are both provided with a synchronous rod (66); The bottom of each of the water inlet barrels (65) is provided with a sliding hole that is slidably matched with the synchronization rod (66); the outer wall of the water inlet barrel (64) is provided with a second water inlet head (642), and the second water inlet head (642) is provided with a second water inlet check valve (6421); the outer wall of the water outlet barrel (65) is provided with a second water outlet head (652), and the second water outlet head (652) is provided with a second water outlet check valve (6521); the sealing cover plate (14) is provided with symmetrically arranged water inlet holes ( The invention relates to a water outlet hole (141) and a water outlet hole (142), wherein a third water inlet check valve (1411) is arranged in the water inlet hole (141), and a third water outlet check valve (1421) is arranged in the water outlet hole (142), the U-shaped bottom plate (61) is invertedly arranged on the bottom of the sealing cover plate (14), the third electric push rod (62) is vertically arranged on the bottom of the U-shaped bottom plate (61), and the synchronization plate (63) is horizontally connected to the output end of the third electric push rod (62). The water inlet bucket (64) and the water outlet bucket (65) are symmetrically arranged on the bottom of the sealing cover plate (14), the water outlet hole (142) is located in the water inlet bucket (64), the water inlet hole (141) is located in the water inlet bucket (64), the two synchronization rods (66) are fixedly connected to the synchronization plate (63), the second water inlet head (642) is connected to the water storage tank (8) through a pipeline, and the second water outlet head (652) is connected to the collection tank (9) through a pipeline.

7. The laser welding equipment according to claim 6, characterized in that: The positioning mechanism (7) comprises an abutting column (71), a mounting tube (72) and a fourth electric push rod (73); the head end of the abutting column (71) is in a cone shape; the tail end of the abutting column (71) is provided with a stabilizing plate (74); the stabilizing plate (74) is provided with a guide groove (741); the head end of the mounting tube (72) is slidably provided with a plurality of telescopic blocks (75) distributed at equal angles along its circumference; the bottom of the tail end of the telescopic block (75) is provided with an abutting wedge surface (751) matched with the wedge surface of the head end of the abutting column (71); the top of the tail end of the telescopic block (75) is provided with a second mounting plate (752) arranged vertically; the second mounting plate (752) is provided with a water-tightened A second spring (753) is arranged horizontally, one end of the second spring (753) is connected to the inner wall of the mounting tube (72), a limiting convex strip (754) is arranged at the head end of the telescopic block (75), a guide strip (721) matching with the guide groove (741) is arranged on the inner wall of the mounting tube (72), the mounting tube (72) is vertically mounted on the top of the synchronous plate (63), the mounting tube (72) is located in the clamping hole groove (13), the fourth electric push rod (73) is vertically arranged on the synchronous plate (63), the fourth electric push rod (73) is located on the mounting tube (72), and the output end of the fourth electric push rod (73) is fixedly connected to the stabilizing plate (74).

8. The laser welding equipment according to claim 1, characterized in that: The pushing mechanism (10) comprises a fifth electric push rod (101) and a push block (102); the second cooling mechanism (20) comprises a second guide rod (201), an air cylinder (202) and an air jet head (205); a third mounting plate (103) arranged vertically is provided on the top of the push block (102); a mounting seat (104) is provided on the top of the third mounting plate (103); a fourth piston (2021) is provided in a sealing and sliding manner in the air cylinder (202); an air inlet (203) and an air outlet (204) are provided on the outer wall of the head end of the air cylinder (202); a second guide hole is provided at the head end of the air cylinder (202) to cooperate with the second guide rod (201); an air inlet check valve is provided in the air inlet (203); and an air outlet (204) is provided in the air outlet (204). An air outlet one-way valve is provided inside, a suspension (16) is also provided at the rear end of the bearing plate (1), an avoidance window (111) is opened on the L-shaped side plate (11), the fifth electric push rod (101) is horizontally arranged on the top of the suspension (16), the push block (102) is fixedly connected to the output end of the fifth electric push rod (101), the air cylinder (202) is horizontally arranged on the top of the fifth electric push rod (101), the head end of the second guide rod (201) is fixedly connected to the back of the third mounting plate (103), the tail end of the second guide rod (201) is fixedly connected to the fourth piston (2021), the spray head (205) is fixedly connected to the mounting seat (104), and the spray head (205) is connected to the air outlet (204) through a pipeline.

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