Motor iron core machining and welding device and welding method thereof

Abstract

The invention belongs to the technical field of motor iron core machining and welding, and particularly relates to a motor iron core machining and welding device and a welding method thereof.The motor iron core machining and welding device comprises a welding table, a plurality of fixing columns are fixedly connected to the upper surface of the welding table, a same top plate is fixedly connected to the top ends of the fixing columns, and a first hydraulic cylinder is fixedly connected to the upper surface of the top plate; the output end of the first hydraulic cylinder is fixedly connected with a limiting column, an inserting groove is formed in the lower surface of the limiting column, a fixing box is fixedly connected to the upper surface of the welding table, and a laser cutting head is slidably arranged on one side of the fixing box. The problems that buckling points in the iron core are disordered due to the fact that the buckling points are located in the iron core, the buckling points cannot be obviously found from the outside, a small cavity is possibly generated in the welded iron core due to protrusions of clamping points, and the quality is unqualified are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of motor iron core processing and welding, in particular to a motor iron core processing and welding device and a welding method thereof. Background Art

[0002] Motor core processing and welding refers to the process of fusing and connecting multiple iron core sheets (usually made of materials such as silicon steel) together in a certain arrangement through heating and pressure to form a motor stator core with a specific shape and structure.

[0003] In the process of using the existing motor core processing and welding equipment, the iron core to be welded is first assembled. The motor core is composed of multiple iron core sheets arranged and buckled together to form a cylindrical iron core, and then welding is performed. However, in the existing welding process, the operator aligns the buckled iron core sheets and then places the cylindrical iron core on the welding table. When placing the iron core, the operator cannot loosen the iron core smoothly at the same time, resulting in disordered buckling points inside the iron core. Moreover, since the buckling points are inside the iron core, they cannot be obviously found from the outside, resulting in smaller cavities inside the welded iron core due to the protrusions of the stuck nodes, resulting in unqualified quality problems. At the same time, because the buckling between the iron core sheets usually needs to be docked one by one, the docking process is cumbersome and takes a lot of time. In addition, the operator's docking efficiency is low, resulting in low efficiency in motor core processing and welding.

[0004] To this end, the present invention provides a motor core processing welding device and a welding method thereof. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the motor core processing welding device described in the present invention comprises a welding table, the upper surface of the welding table is fixedly connected to a plurality of fixing columns, the top ends of the plurality of fixing columns are fixedly connected to the same top plate, the upper surface of the top plate is fixedly connected to a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected to a limiting column, a slot is provided on the lower surface of the limiting column, the upper surface of the welding table is fixedly connected to a fixing box, a laser cutting head is slidably provided on one side of the fixing box, the upper surface of the welding table is fixedly connected to a bottom column, the circumferential surface of the bottom column is provided with a fixing ring, the fixing The lower surface of the fixed ring is rotatably connected to a plurality of electric push rods, which are located inside the welding table. A fixed plate is fixedly connected between every two of the fixed columns. A second guide rail is provided on the upper surface of the fixed plate. A second guide block is slidably connected in the second guide rail. A second hydraulic cylinder is fixedly connected to the upper surface of the second guide block. A positioning plate is fixedly connected to the output end of the second hydraulic cylinder. A push block is slidably connected to one side of the positioning plate. Arc plates are rotatably provided on both sides of the positioning plate. The arc plates are used to limit and protect the iron chips. A pressure pump is fixedly connected to one side of the positioning plate. The pressure pump is used to lift the push block.

[0007] Preferably, a third guide rail is provided on one side of the positioning plate, a third guide block is slidably connected to the third guide rail, one side of the third guide block is fixedly connected to the push block, positioning blocks are fixedly connected to both sides of the positioning plate, an arc plate is rotatably connected to the positioning block, and a torsion spring is fixedly connected to the middle of the positioning block.

[0008] Preferably, a first guide rail is provided on one side of the fixed box, a first guide block is slidably connected inside the first guide rail, and the first guide block is fixedly connected to the laser welding head.

[0009] Preferably, a positioning box is fixedly connected to one side of the welding table, a first cavity is defined inside the positioning box, a material unloading assembly is arranged in the first cavity, the material unloading assembly comprises a fifth guide rail fixedly connected to the top wall of the first cavity, a fifth guide block is slidably connected to the lower surface of the fifth guide rail, a third hydraulic cylinder is fixedly connected to the lower surface of the fifth guide block, a positioning rod is fixedly connected to the output end of the third hydraulic cylinder, a chassis is rotatably connected to the output end of the positioning rod, two air pumps are fixedly connected to the upper surface of the chassis, two suction cups are fixedly connected to the positions of the two air pumps on the lower surface of the chassis, a material unloading hole is defined in the bottom wall of the first cavity, an auxiliary plate is fixedly connected to the upper surface of the welding table, a fourth guide rail is defined on the upper surface of the auxiliary plate, a fourth guide block is slidably connected to the inner side of the fourth guide rail, and a plug is fixedly connected to the upper surface of the fourth guide block.

[0010] Preferably, a limiting block is fixedly connected to one side of the first cavity, and the limiting block is used to assist the falling of the iron core sheet. An auxiliary ring is fixedly connected to the bottom wall of the first cavity, and the auxiliary ring is used to block and limit the iron core sheet.

[0011] Preferably, a sixth guide rail is provided on the bottom wall of the first cavity, a sixth guide block is slidably connected in the sixth guide rail, and a limiting rod is fixedly connected to the upper surface of the sixth guide block.

[0012] Preferably, two connecting blocks are fixedly connected to one side of the positioning box, a sealing plate is rotatably connected between the two connecting blocks, a handle is fixedly connected to one side of the sealing plate, an electrophoresis magnet is fixedly connected to the side of the positioning box close to the sealing plate, and the sealing plate is made of magnetic material at the position corresponding to the electrophoresis magnet.

[0013] Preferably, a connecting plate is fixedly connected to the upper surface of the limiting column, and a blowing assembly is provided on the lower surface of the connecting plate, and the blowing assembly is used to clean welding slag on the upper surface of the bottom column.

[0014] Preferably, the blowing assembly includes a piston rod fixedly connected to the lower surface of the connecting plate, a piston head fixedly connected to the bottom end of the piston rod, a piston tube fixedly connected to the position of the welding table corresponding to the piston tube, a piston cavity is opened in the piston tube, the piston rod and the piston head can perform piston operation with the piston tube, and a nozzle is fixedly connected to one side of the piston tube, and the nozzle is used to spray gas.

[0015] Preferably, a horizontal block is fixedly connected to one end of the nozzle away from the piston tube, and a plurality of spray holes are opened on one side of the horizontal block, and the spray holes are used to increase the spray area;

[0016] A method for machining and welding a motor core comprises the following steps:

[0017] The first cavity is activated to slide the fifth guide block on its lower surface, thereby driving the third hydraulic cylinder to slide along the fifth guide rail. The sliding of the third hydraulic cylinder can drive the chassis fixed to its lower surface to move.

[0018] After the chassis moves to the top of several iron chips, the vacuum pump on the upper surface of the chassis is activated, and at the same time, the third hydraulic cylinder drives the chassis to contact the topmost iron chip, and the iron chip is adsorbed by the suction cup;

[0019] During the rotation of the chassis, the iron core sheet adsorbed on the lower surface of the chassis can abut against the sixth guide block sliding in the sixth guide rail. After the position rotation and adjustment, the groove on the surface of the iron core sheet can be plugged into the limit rod fixed on the upper surface of the sixth guide block, thereby performing the final position calibration.

[0020] Then, when calibrating the next iron core piece, the sixth guide rail is started to drive the sixth guide block and the limit rod to move to the other end, so that the iron core pieces are engaged with each other, achieving the effect of automatic engagement;

[0021] Before the iron core is welded, the second hydraulic cylinder is started to drive the positioning plate at its output end, and the stacked iron core pieces are lifted up by the push block. When the positioning plate is close to the iron core pieces, the arc plates rotating on both sides of the positioning plate can limit the longitudinal positions of the iron core pieces for calibration.

[0022] By starting the electrified second guide rail on the two fixed plates, the second guide rail can drive the second guide block in the guide rail after it is started. The movement of the second guide block can drive the second hydraulic cylinder fixed on its upper surface, and drive the positioning plate and other structures at the output end of the second hydraulic cylinder to limit several iron core pieces. The first hydraulic cylinder is started to drive the limiting column downward to move the fixing ring downward. After the extrusion is completed, the laser welding head is started. The back and forth cutting of the laser head and the rotation of the fixing ring through the electric push rod can complete the welding of the entire circumferential surface of the iron core.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. The motor core processing and welding device described in the present invention starts the electrified second guide rails on the two fixed plates. After the second guide rails are started, they can drive the second guide blocks in the guide rails. The movement of the second guide blocks can drive the second hydraulic cylinder fixed on its upper surface, and then can drive the positioning plate and other structures at the output end of the second hydraulic cylinder to limit a plurality of iron core pieces, thereby achieving the effect of improving the quality of welding.

[0025] 2. A motor core processing and welding device described in the present invention can start the fifth guide rail on the top wall of the first cavity. After the fifth guide rail is started, the fifth guide block sliding on its lower surface can drive the third hydraulic cylinder to slide along the fifth guide rail. The sliding of the third hydraulic cylinder can drive the chassis fixed to its lower surface to move. After the chassis moves above several iron core pieces, the vacuum pump on the upper surface of the chassis is started. At the same time, the third hydraulic cylinder will drive the chassis to abut against the iron core piece on the uppermost layer. After abutting against the iron core piece on the uppermost layer, the iron core piece will be adsorbed by the suction cup. After adsorbing an iron core piece, the built-in motor inside the positioning rod is started to drive the iron core piece adsorbed by the suction cup to move to just above the feeding hole. After adjusting the buckle of the corresponding iron core piece, the vacuum is stopped to apply suction, and then the iron core piece can be released to fall onto the plug column, and then the iron core pieces are positioned and connected one by one, thereby achieving the effect of improving the docking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 This is an exploded view of the buckle connection of the iron core sheet of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the main body of the present invention;

[0029] Figure 3 It is a partial structural schematic diagram of the main body of the present invention;

[0030] Figure 4 It is a schematic diagram of the internal structure of the positioning box of the present invention;

[0031] Figure 5 is a schematic structural diagram of the third hydraulic cylinder of the present invention;

[0032] Figure 6 is a schematic structural diagram of a first hydraulic cylinder of the present invention;

[0033] Figure 7 It is a structural schematic diagram of the spray hole of the present invention;

[0034] Figure 8 It is a structural schematic diagram of the positioning plate of the present invention;

[0035] In the figure: 1, welding table; 11, fixed column; 12, top plate; 13, first hydraulic cylinder; 14, limit column; 15, bottom column; 16, electric push rod; 17, fixed ring; 18, fixed box; 19, first guide rail; 110, first guide block; 111, laser welding head; 112, slot;

[0036] 2. Fixed plate; 21. Second guide rail; 22. Second guide block; 23. Second hydraulic cylinder; 24. Positioning plate; 25. Third guide rail; 26. Third guide block; 27. Push block; 28. Pressure pump; 29. ​​Positioning block; 210. Torsion spring; 211. Arc plate;

[0037] 3. Auxiliary plate; 31. Fourth guide rail; 32. Fourth guide block; 33. Insert column; 34. Positioning box; 35. Connecting block; 36. Sealing plate; 37. Handle; 38. Electrophoretic magnetic block; 39. Fifth guide rail; 310. Fifth guide block; 311. Third hydraulic cylinder; 312. Positioning rod; 313. Chassis; 314. Air pump; 315. Suction cup; 316. First cavity; 317. Feeding hole; 318. Stop block; 319. Auxiliary ring; 320. Sixth guide rail; 321. Sixth guide block; 322. Stop rod;

[0038] 4. Iron chips;

[0039] 5. Connecting plate; 51. Piston tube; 52. Piston rod; 53. Piston head; 54. Nozzle; 55. Cross block; 56. Piston cavity; 57. Spray hole. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0041] Embodiment 1

[0042] like Figures 1 to 8 As shown, a motor core processing and welding device according to an embodiment of the present invention comprises a welding table 1, a plurality of fixed columns 11 are fixedly connected to the upper surface of the welding table 1, the top ends of the plurality of fixed columns 11 are fixedly connected to the same top plate 12, a first hydraulic cylinder 13 is fixedly connected to the upper surface of the top plate 12, an output end of the first hydraulic cylinder 13 is fixedly connected to a limiting column 14, a slot 112 is provided on the lower surface of the limiting column 14, a fixed box 18 is fixedly connected to the upper surface of the welding table 1, a laser cutting head is slidably provided on one side of the fixed box 18, a bottom column 15 is fixedly connected to the upper surface of the welding table 1, a fixing ring 17 is provided on the circumferential surface of the bottom column 15, and a lower surface of the fixing ring 17 is rotatably connected to the fixing box 18. There are several electric push rods 16, which are located inside the welding table 1. A fixed plate 2 is fixedly connected between every two fixed columns 11. A second guide rail 21 is opened on the upper surface of the fixed plate 2. A second guide block 22 is slidably connected in the second guide rail 21. A second hydraulic cylinder 23 is fixedly connected to the upper surface of the second guide block 22. A positioning plate 24 is fixedly connected to the output end of the second hydraulic cylinder 23. A push block 27 is slidably connected to one side of the positioning plate 24. Arc plates 211 are rotatably provided on both sides of the positioning plate 24. The arc plates 211 are used to limit and protect the iron core sheet 4. A pressure pump 28 is fixedly connected to one side of the positioning plate 24. The pressure pump 28 is used to lift the push block 27.

[0043] Specifically, in the process of using the existing motor core processing and welding equipment, the iron core to be welded is first assembled. The motor core is composed of a plurality of iron core sheets 4 arranged and buckled together to form a cylindrical iron core, and then welded. However, in the existing welding process, after the operator aligns the buckled iron core sheets 4, the cylindrical iron core is placed on the welding table 1. When placing, the operator cannot loosen the iron core smoothly at the same time, resulting in disordered buckling points inside the iron core. Moreover, since the buckling points are inside the iron core, they cannot be clearly found from the outside, resulting in a small cavity inside the welded iron core due to the protrusion of the stuck node, resulting in unqualified quality problems.

[0044] Therefore, some structures are set up to solve this problem. First, before welding the iron core, the stacked and clamped iron core pieces 4 are placed between the two pushing blocks 27. Then, the second hydraulic cylinder 23 is started to drive the positioning plate 24 at its output end to lift up the stacked iron core pieces 4 through the pushing block 27. Because the ends of the two pushing blocks 27 that are close to each other are inclined, the clamping and squeezing of the two pushing blocks 27 can lift up the iron core pieces 4 from the bottom wall. After being lifted up, the iron core pieces 4 can be located on the upper surfaces of the two pushing blocks 27. In the process of the positioning plate 24 approaching the iron core pieces 4, the arc plates 211 rotatably arranged on both sides of the positioning plate 24 can limit the longitudinal positions of the iron core pieces 4 and calibrate them, so that the iron core pieces 4 can maintain a high degree of accuracy during the welding process, thereby improving the welding quality. When the calibration and clamping are completed, the second hydraulic cylinder 23 is started to The electrified second guide rail 21 on the two fixed plates 2 can drive the second guide block 22 in the guide rail after it is started. The movement of the second guide block 22 can drive the second hydraulic cylinder 23 fixed to its upper surface, and then drive the positioning plate 24 and other structures at the output end of the second hydraulic cylinder 23 to limit the plurality of iron core pieces 4, thereby achieving the effect of improving the quality of welding. After the positioning is completed, the iron core piece 4 can be moved to the upper surface of the bottom column 15, and then the first hydraulic cylinder 13 is started to drive the limiting column 14 downward, and the limiting column 14 can be pressed and abutted with the close-fitting piece, and then the fixing ring 17 is moved downward under the action of the electric push rod 16. After the extrusion is completed, the laser welding head 111 is started, and the back and forth cutting of the laser head and the rotation of the fixing ring 17 through the rotation of the electric push rod 16 can complete the welding of the entire circumferential surface of the iron core;

[0045] The problem that the operating personnel are unable to loosen the iron core smoothly and simultaneously during placement, resulting in disordered buckling points inside the iron core, and because the buckling points are inside the iron core, they cannot be obviously found from the outside, resulting in smaller cavities inside the welded iron core due to the protrusions of the buckling nodes, resulting in unqualified quality, is solved.

[0046] like Figure 8 As shown, in this embodiment, a third guide rail 25 is provided on one side of the positioning plate 24, a third guide block 26 is slidably connected inside the third guide rail 25, one side of the third guide block 26 is fixedly connected to the push block 27, positioning blocks 29 are fixedly connected on both sides of the positioning plate 24, an arc plate 211 is rotatably connected inside the positioning block 29, and a torsion spring 210 is fixedly connected to the middle of the positioning block 29.

[0047] Specifically, after the rotating arc blocks on both sides of the positioning plate 24 have completed the limit correction of several iron core pieces 4, by starting the third guide block 26 in the third guide rail 25 on one side of the positioning plate 24, the two third guide blocks 26 on both sides cooperate with each other to carry the iron core pieces 4 to move to the bottom column 15, and then pressure welding can be performed.

[0048] like Figure 2 As shown, in this embodiment, a first guide rail 19 is opened on one side of the fixed box 18 , and a first guide block 110 is slidably connected in the first guide rail 19 . The first guide block 110 is fixedly connected to the laser welding head 111 .

[0049] Specifically, when the laser welding head 111 is started for intense welding, the first guide rail 19 is opened on one side of the fixed box 18, and the laser welding head 111 is driven by the first guide block 110 to move up and down for welding, thereby achieving a stable welding effect.

[0050] Embodiment 2

[0051] like Figures 2 to 8 As shown, in contrast to Example 1, another embodiment of the present invention is as follows: a positioning box 34 is fixedly connected to one side of the welding table 1, a first cavity 316 is opened inside the positioning box 34, a blanking assembly is arranged in the first cavity 316, and the blanking assembly includes a fifth guide rail 39 fixedly connected to the top wall of the first cavity 316, a fifth guide block 310 is slidably connected to the lower surface of the fifth guide rail 39, a third hydraulic cylinder 311 is fixedly connected to the lower surface of the fifth guide block 310, and a positioning rod 31 is fixedly connected to the output end of the third hydraulic cylinder 311 2. The output end of the positioning rod 312 is rotatably connected to the chassis 313. Two vacuum pumps 314 are fixedly connected to the upper surface of the chassis 313. Two suction cups 315 are fixedly connected to the lower surface of the chassis 313 at the positions corresponding to the two vacuum pumps 314. A feed hole 317 is provided on the bottom wall of the first cavity 316. An auxiliary plate 3 is fixedly connected to the upper surface of the welding table 1. A fourth guide rail 31 is provided on the upper surface of the auxiliary plate 3. A fourth guide block 32 is slidably connected to the inside of the fourth guide rail 31. A plug post 33 is fixedly connected to the upper surface of the fourth guide block 32.

[0052] Specifically, because the buckle connection between the core pieces 4 usually needs to be docked one by one, the docking process is cumbersome and takes a lot of time, and the docking efficiency of the operator is low, resulting in the problem of low efficiency in the processing and welding of the motor core;

[0053] Therefore, a certain structure is provided to solve this problem. First, the fifth guide rail 39 on the top wall of the first cavity 316 is started. After the fifth guide rail 39 is started, the fifth guide block 310 sliding on its lower surface can drive the third hydraulic cylinder 311 to slide along the fifth guide rail 39. The sliding of the third hydraulic cylinder 311 can drive the chassis 313 fixed on its lower surface to move. After the chassis 313 moves above a plurality of iron chips 4, the air pump 314 on the upper surface of the chassis 313 is started. At the same time, the third hydraulic cylinder 311 will drive the bottom The plate 313 is in contact with the topmost iron core piece 4. After being in contact with the topmost iron core piece 4, the iron core piece 4 is adsorbed by the suction cup 315. After adsorbing one iron core piece 4, the built-in motor inside the positioning rod 312 is started to drive the iron core piece 4 adsorbed by the suction cup 315 to move to the top of the discharge hole 317. After adjusting the buckle of the corresponding iron core piece 4, the suction is stopped to apply the suction force, and then the iron core piece 4 can be released to fall onto the plug column 33, and then the positioning and card connection of the iron core pieces 4 are performed one by one, thereby achieving the effect of improving the docking efficiency.

[0054] The problem that the buckling between the core pieces 4 usually requires docking one by one, the docking process is cumbersome, takes a lot of time, and the docking efficiency of the operator is low, resulting in low efficiency in the processing and welding of the motor core is solved.

[0055] like Figure 4 As shown, in this embodiment, a limit block 318 is fixedly connected to one side of the first cavity 316, and the limit block 318 is used to assist the iron core piece 4 to fall. An auxiliary ring 319 is fixedly connected to the bottom wall of the first cavity 316, and the auxiliary ring 319 is used to block and limit the iron core piece 4.

[0056] Specifically, by fixing a limit block 318 on one side of the first cavity 316, and then providing an arc surface on the top of the limit block 318, the iron core piece 4 is prevented from being misplaced, thereby improving the docking quality of the iron core piece 4, achieving a better docking effect, and improving the efficiency of iron core processing and welding.

[0057] like Figure 4 As shown, in this embodiment, a sixth guide rail 320 is provided on the bottom wall of the first cavity 316 , a sixth guide block 321 is slidably connected inside the sixth guide rail 320 , and a limiting rod 322 is fixed to the upper surface of the sixth guide block 321 .

[0058] Specifically, by opening the sixth guide rail 320 on the bottom wall of the first cavity 316, the iron chip 4 adsorbed on the lower surface of the chassis 313 can be abutted against the sixth guide block 321 sliding in the sixth guide rail 320 during the rotation of the chassis 313. After the position of the iron chip 4 is rotated and adjusted, the groove on the surface of the iron chip 4 can be plugged into the limit rod 322 fixed on the upper surface of the sixth guide block 321, so as to perform the final calibration of the position. Then, when calibrating the next iron chip 4, it is necessary to start the sixth guide rail 320 to drive the sixth guide block 321 and the limit rod 322 to move to the other end, so that the iron chips 4 can be clamped with each other, achieving the effect of automatic clamping and improving the processing efficiency.

[0059] like Figure 4 As shown, two connecting blocks 35 are fixedly connected to one side of the positioning box 34 of this embodiment, a sealing plate 36 is rotatably connected between the two connecting blocks 35, a handle 37 is fixedly connected to one side of the sealing plate 36, an electrophoresis magnet 38 is fixedly connected to the side of the positioning box 34 close to the sealing plate 36, and the sealing plate 36 is made of magnetic material at the position corresponding to the electrophoresis magnet 38.

[0060] Specifically, the sealing plate 36 can be automatically adsorbed and closed or easily opened through the interaction between the electrophoretic magnetic block 38 and the magnetic material on the sealing plate 36. The sealing plate 36 can be flexibly rotated on the side wall of the positioning box 34 through the connecting block 35. The opening and closing of the sealing plate 36 can be controlled by holding the handle 37. When the electrophoretic magnetic block 38 is energized, it generates a magnetic field to attract the sealing plate 36 made of magnetic material to fit tightly on the positioning box 34 to form an effective seal; after power is off, the magnetic force disappears, making it easy to open the sealing plate 36, simplifying the sealing operation, improving work efficiency, enhancing the sealing effect, preventing the leakage of internal media or the invasion of external impurities, and ensuring the safety and purity of the environment inside the positioning box 34. At the same time, the electromagnetic principle is used to achieve sealing, which reduces the wear of traditional mechanical seals and extends the service life of the equipment.

[0061] like Figure 4 As shown, in this embodiment, the upper surface of the limiting column 14 is fixedly connected with the connecting plate 5 , and the lower surface of the connecting plate 5 is provided with a blowing assembly, which is used to clean the welding slag on the upper surface of the bottom column 15 .

[0062] Specifically, a connecting plate 5 is fixedly connected to the upper surface of the limiting column 14, and a blowing assembly is arranged on the lower surface of the connecting plate 5. After welding one iron core, the blowing assembly is started to clean the welding slag on the upper surface of the bottom column 15 during the next welding process.

[0063] like Figure 6 and Figure 7As shown, the blowing assembly of this embodiment includes a piston rod 52 fixedly connected to the lower surface of the connecting plate 5, a piston head 53 is fixedly connected to the bottom end of the piston rod 52, a piston tube 51 is fixedly connected to the position of the welding table 1 corresponding to the piston tube 51, a piston cavity 56 is opened in the piston tube 51, the piston rod 52 and the piston head 53 can perform piston work with the piston tube 51, and a nozzle 54 is fixedly connected to one side of the piston tube 51, and the nozzle 54 is used to spray gas.

[0064] Specifically, in the process of the first hydraulic cylinder 13 driving the limit column 14 downward, the connecting plate 5 will also be driven to move downward. The downward movement of the connecting plate 5 can drive the piston rod 52 fixed to the lower surface of the connecting plate 5, and then the piston rod 52 will drive the piston head 53 at the bottom end to perform piston movement along the piston tube 51, so as to achieve the effect of cleaning the surface of the bottom column 15, thereby preventing the welding slag on the bottom column 15 from affecting the quality of the iron core.

[0065] like Figure 6 and Figure 7 As shown, in this embodiment, a cross block 55 is fixedly connected to one end of the nozzle 54 away from the piston tube 51, and a plurality of spray holes 57 are opened on one side of the cross block 55. The spray holes 57 are used to increase the spraying area.

[0066] Specifically, during the process of the nozzle 54 spraying gas, a horizontal block 55 is fixedly connected to one end of the nozzle 54, so that the squeezed gas will be sprayed along a plurality of spray holes 57 opened on the surface of the horizontal block 55, thereby increasing the spraying area and improving the cleaning effect.

[0067] The working principle is as follows: first, the fifth guide rail 39 on the top wall of the first cavity 316 is started. After the fifth guide rail 39 is started, the fifth guide block 310 sliding on its lower surface can drive the third hydraulic cylinder 311 to slide along the fifth guide rail 39. The sliding of the third hydraulic cylinder 311 can drive the chassis 313 fixed on its lower surface to move. After the chassis 313 moves above several iron chips 4, the vacuum pump 314 on the upper surface of the chassis 313 is started. At the same time, the third hydraulic cylinder 311 will drive the chassis 313 to abut against the uppermost iron chip 4. After abutting against the uppermost iron chip 4, the iron chip 4 will be adsorbed by the suction cup 315. After adsorbing an iron chip 4, the built-in motor inside the positioning rod 312 is started to drive the iron chip 4 adsorbed by the suction cup 315. The sixth guide rail 320 is provided on the bottom wall of the first cavity 316, so that the chassis The sixth guide rail 320 is actuated to move the sixth guide block 321 and the sixth guide block 322 to the other end of the sixth guide block 321, thereby achieving the effect of automatic connection and improving the processing efficiency. Then, the sixth guide rail 320 is activated to drive the sixth guide block 321 and the limit rod 322 to move to the other end, so that the iron chips 4 are connected to each other, thus achieving the effect of automatic connection and improving the processing efficiency. Then, the sixth guide rail 320 is activated to drive the sixth guide block 321 and the limit rod 322 to move to the other end, thereby achieving the effect of automatic connection and improving the processing efficiency. Then, the sixth guide rail 320 is activated to drive the sixth guide block 321 and the limit rod 322 to move to the other end, thereby achieving the effect of automatic connection and improving the processing efficiency. Then, the sixth guide rail 320 is activated to drive the sixth guide block 321 and the limit rod 322 to move to the other end, thereby achieving the effect of automatic connection and improving the processing efficiency. Then, the sixth guide rail 320 is activated to drive the sixth guide block 321 and the limit rod 322 to move to the other end, thereby achieving the effect of automatic connection and improving the processing efficiency.

[0068] First, before welding the iron core, place the stacked and clamped iron core pieces 4 between the two pushing blocks 27, and then start the second hydraulic cylinder 23 to drive the positioning plate 24 at its output end to lift the stacked iron core pieces 4 through the pushing block 27. Because the ends of the two pushing blocks 27 that are close to each other are inclined, the clamping and squeezing of the two pushing blocks 27 can lift the iron core pieces 4 from the bottom wall, and the lifted iron core pieces 4 can be located on the upper surfaces of the two pushing blocks 27. In the process of the positioning plate 24 approaching the iron core pieces 4, the arc plates 211 rotatably arranged on both sides of the positioning plate 24 can limit the longitudinal positions of the iron core pieces 4 and calibrate them, so that the iron core pieces 4 can maintain a high degree of accuracy during the welding process, thereby improving the welding quality. When the calibration and clamping are completed, start the charged The second guide rail 21 can drive the second guide block 22 in the guide rail after it is started. The movement of the second guide block 22 can drive the second hydraulic cylinder 23 fixed to its upper surface, and then drive the positioning plate 24 and other structures at the output end of the second hydraulic cylinder 23 to limit the plurality of iron core pieces 4, thereby achieving the effect of improving the quality of welding. After the positioning is completed, the iron core piece 4 can be moved to the upper surface of the bottom column 15, and then the first hydraulic cylinder 13 is started to drive the limiting column 14 downward, and the limiting column 14 can be pressed and abutted with the close-fitting piece, and then the fixing ring 17 is moved downward under the action of the electric push rod 16. After the extrusion is completed, the laser welding head 111 is started, and the back and forth cutting of the laser head and the rotation of the fixing ring 17 through the rotation of the electric push rod 16 can complete the welding of the entire circumferential surface of the iron core;

[0069] When the iron core piece 4 in the first cavity 316 has finished falling, the sealing plate 36 can be automatically adsorbed and closed or easily opened through the interaction between the electrophoretic magnetic block 38 and the magnetic material on the sealing plate 36, so that the randomly arranged iron core pieces 4 can be added to the first cavity 316 more conveniently. The sealing plate 36 can be flexibly rotated on the side wall of the positioning box 34 through the connecting block 35, and the opening and closing of the sealing plate 36 can be controlled by holding the handle 37. When the electrophoretic magnetic block 38 is energized, a magnetic field is generated to attract the sealing plate 36 made of magnetic material to fit tightly on the positioning box 34 to form an effective seal; after power is off, the magnetic force disappears, making it easy to open the sealing plate 36, thereby simplifying the sealing operation, improving work efficiency, enhancing the sealing effect, preventing the leakage of internal media or the invasion of external impurities, and ensuring the safety and purity of the environment in the positioning box 34. At the same time, the electromagnetic principle is used to achieve sealing, which reduces the wear of traditional mechanical seals and extends the service life of the equipment.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A motor core processing welding device, comprising a welding table (1), wherein the upper surface of the welding table (1) is fixedly connected to a plurality of fixed columns (11), the top ends of the plurality of fixed columns (11) are fixedly connected to the same top plate (12), the upper surface of the top plate (12) is fixedly connected to a first hydraulic cylinder (13), the output end of the first hydraulic cylinder (13) is fixedly connected to a limiting column (14), the lower surface of the limiting column (14) is provided with a slot (112), the upper surface of the welding table (1) is fixedly connected to a fixed box (18), a laser cutting head is slidably arranged on one side of the fixed box (18), the upper surface of the welding table (1) is fixedly connected to a bottom column (15), the circumferential surface of the bottom column (15) is provided with a fixing ring (17), the lower surface of the fixing ring (17) is rotatably connected to a plurality of electric push rods (16), the electric push rods (16) are located inside the welding table (1), and the characteristics are as follows: A fixing plate (2) is fixedly connected between every two fixing columns (11), a second guide rail (21) is provided on the upper surface of the fixing plate (2), a second guide block (22) is slidably connected inside the second guide rail (21), a second hydraulic cylinder (23) is fixedly connected to the upper surface of the second guide block (22), an output end of the second hydraulic cylinder (23) is fixedly connected to a positioning plate (24), a push block (27) is slidably connected to one side of the positioning plate (24), arc plates (211) are rotatably provided on both sides of the positioning plate (24), the arc plates (211) are used for limiting and protecting the iron core sheet (4), a pressure pump (28) is fixedly connected to one side of the positioning plate (24), and the pressure pump (28) is used for lifting the push block (27).

2. The motor core processing and welding device according to claim 1, characterized in that: A third guide rail (25) is provided on one side of the positioning plate (24), a third guide block (26) is slidably connected inside the third guide rail (25), one side of the third guide block (26) is fixedly connected to a push block (27), positioning blocks (29) are fixedly connected on both sides of the positioning plate (24), an arc plate (211) is rotatably connected inside the positioning block (29), and a torsion spring (210) is fixedly connected to the middle of the positioning block (29).

3. The motor core processing and welding device according to claim 1, characterized in that: A first guide rail (19) is provided on one side of the fixed box (18), a first guide block (110) is slidably connected inside the first guide rail (19), and the first guide block (110) is fixedly connected to a laser welding head (111).

4. The motor core processing and welding device according to claim 1, characterized in that: A positioning box (34) is fixedly connected to one side of the welding table (1), a first cavity (316) is opened inside the positioning box (34), a blanking assembly is arranged in the first cavity (316), the blanking assembly comprises a fifth guide rail (39) fixedly connected to the top wall of the first cavity (316), a fifth guide block (310) is slidably connected to the lower surface of the fifth guide rail (39), a third hydraulic cylinder (311) is fixedly connected to the lower surface of the fifth guide block (310), a positioning rod (312) is fixedly connected to the output end of the third hydraulic cylinder (311), and the output end of the positioning rod (312) is rotated The welding platform (1) is movably connected to a chassis (313), the upper surface of the chassis (313) is fixedly connected to two vacuum pumps (314), the lower surface of the chassis (313) is fixedly connected to two suction cups (315) at positions corresponding to the two vacuum pumps (314), the bottom wall of the first cavity (316) is provided with a discharge hole (317), the upper surface of the welding platform (1) is fixedly connected to an auxiliary plate (3), the upper surface of the auxiliary plate (3) is provided with a fourth guide rail (31), the fourth guide rail (31) is slidably connected to a fourth guide block (32), and the upper surface of the fourth guide block (32) is fixedly connected to a plug post (33).

5. The motor core processing and welding device according to claim 4, characterized in that: A limiting block (318) is fixedly connected to one side of the first cavity (316), and the limiting block (318) is used to assist the iron core piece (4) in falling down. An auxiliary ring (319) is fixedly connected to the bottom wall of the first cavity (316), and the auxiliary ring (319) is used to block and limit the iron core piece (4).

6. The motor core processing and welding device according to claim 4, characterized in that: The bottom wall of the first cavity (316) is provided with a sixth guide rail (320), a sixth guide block (321) is slidably connected inside the sixth guide rail (320), and the upper surface of the sixth guide block (321) is fixedly connected to a limiting rod (322).

7. The motor core processing and welding device according to claim 4, characterized in that: Two connecting blocks (35) are fixedly connected to one side of the positioning box (34); a sealing plate (36) is rotatably connected between the two connecting blocks (35); a handle (37) is fixedly connected to one side of the sealing plate (36); an electrophoresis magnetic block (38) is fixedly connected to one side of the positioning box (34) close to the sealing plate (36); and the sealing plate (36) is made of magnetic material at a position corresponding to the electrophoresis magnetic block (38).

8. The motor core processing and welding device according to claim 1, characterized in that: The upper surface of the limiting column (14) is fixedly connected to a connecting plate (5), and the lower surface of the connecting plate (5) is provided with a blowing assembly, which is used to clean welding slag on the upper surface of the bottom column (15).

9. The motor core processing and welding device according to claim 8, characterized in that: The blowing assembly comprises a piston rod (52) fixedly connected to the lower surface of the connecting plate (5), a piston head (53) fixedly connected to the bottom end of the piston rod (52), a piston tube (51) fixedly connected to the welding platform (1) at a position corresponding to the piston tube (51), a piston cavity (56) is provided in the piston tube (51), the piston rod (52) and the piston head (53) can perform piston operation with the piston tube (51), a nozzle (54) is fixedly connected to one side of the piston tube (51), and the nozzle (54) is used to spray gas; One end of the nozzle (54) away from the piston tube (51) is fixedly connected to a transverse block (55), and one side of the transverse block (55) is provided with a plurality of spray holes (57), and the spray holes (57) are used to increase the spray area.

10. A method for machining and welding a motor core, using the motor core machining and welding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The first cavity (316) is activated to cause the fifth guide block (310) on the lower surface of the first cavity to slide, thereby driving the third hydraulic cylinder (311) to slide along the fifth guide rail (39). The sliding of the third hydraulic cylinder (311) can drive the chassis (313) fixed to the lower surface thereof to move. After the chassis (313) moves to the top of a plurality of iron core sheets (4), the vacuum pump (314) on the upper surface of the chassis (313) is activated, and at the same time, the third hydraulic cylinder (311) drives the chassis (313) to contact the uppermost iron core sheet (4), and the iron core sheet (4) is adsorbed by the suction cup (315); During the rotation of the chassis (313), the iron core piece (4) adsorbed on the lower surface of the chassis (313) can abut against the sixth guide block (321) sliding in the sixth guide rail (320), and the groove on the surface of the iron core piece (4) after position rotation adjustment can be plugged into the limit rod (322) fixed on the upper surface of the sixth guide block (321), thereby performing final position calibration; When calibrating the next iron core piece (4), the sixth guide rail (320) is started to drive the sixth guide block (321) and the limit rod (322) to move to the other end, so that the iron core pieces (4) are mutually engaged, achieving an automatic engagement effect; Before the iron core is welded, the second hydraulic cylinder (23) is started to drive the positioning plate (24) at its output end, and the stacked iron core pieces (4) are lifted up by the push block (27). When the positioning plate (24) is close to the iron core pieces (4), the arc plates (211) rotatably arranged on both sides of the positioning plate (24) can limit the longitudinal positions of the iron core pieces (4) for calibration; By starting the electrified second guide rail (21) on the two fixed plates (2), the second guide rail (21) can drive the second guide block (22) in the guide rail after starting, and the movement of the second guide block (22) can drive the second hydraulic cylinder (23) fixed to its upper surface, driving the positioning plate (24) at the output end of the second hydraulic cylinder (23) and other structures to limit the plurality of iron core pieces (4), starting the first hydraulic cylinder (13) to drive the limiting column (14) downward, so that the fixing ring (17) moves downward, and after the extrusion is completed, starting the laser welding head (111), the laser head cuts back and forth, and the fixing ring (17) rotates through the electric push rod (16), so that the welding of the entire iron core circumference can be completed.

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