High-precision generator stator lamination tool

Abstract

The invention relates to the field of generator production, in particular to a high-precision generator stator lamination tool which comprises a base, a rotating disc is rotationally connected to the base, a driving motor is mounted in the base, an output shaft of the driving motor is connected with the rotating disc, a hydraulic rod is fixedly mounted on the base, and a motor is mounted on the hydraulic rod. A pushing plate is fixedly installed at the movable end of the hydraulic rod, and a plurality of arc-shaped through holes are formed in the base. The transmission assembly drives the limiting rod in the arc-shaped through hole to swing, at the moment, the limiting rod can also penetrate through the coil containing groove in the silicon steel sheet, and the silicon steel sheet can be pushed to rotate within a certain range through movement of the limiting rod, so that the silicon steel sheet can rotate to a designated position; certainly, the inner walls of the two sides of the silicon steel sheet mounting groove can be limited at the same time through back-and-forth movement of the limiting columns, the probability that the silicon steel sheet mounting groove deviates is reduced, and high precision during generator stator production is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of generator production, and specifically to a high-precision generator stator lamination tooling. Background Art

[0002] Line locking is performed to prevent the limiting rod from skewing, further ensuring the production accuracy of the stator. A generator is a machine that converts mechanical energy into electrical energy, mostly composed of a rotor and a stator wound with coils, and its working principle is based on the electromagnetic induction principle, that is, when the magnetic field lines in the magnetic field change, an induced current will be generated in the wires around it. In a generator, this principle is achieved through the relative movement between the rotor magnetic field and the stator winding. The prime mover drives the rotor to rotate, thereby generating a magnetic field.

[0003] When producing the stator of a generator, it is necessary to first slice the raw material silicon steel sheet to form the sliced silicon steel sheet, and then stack the silicon steel sheets in a certain order and manner to form a stator core. After lamination, the shape and size of the stator core are basically determined. Finally, copper wires are wound around the stator to complete the production. Because the manual blanking method has uncertainties, the stator laminations are prone to tilting during blanking after stacking, thus unable to ensure the coaxiality of the stator laminations after blanking. Therefore, the patent application with the patent publication number CN114530993A provides a high-precision generator stator lamination tooling. According to different specifications of stator laminations, the outer wall and inner wall of the stator laminations are simultaneously limited, and the coaxiality of the stator laminations can be quickly ensured, thereby improving the uniformity of the stator laminations and ensuring the coaxiality of the laminations. However, the vertical levelness of its copper wire installation groove also needs to be ensured, and insufficient coaxial accuracy will cause vibration and noise during the operation of the motor, which not only affects the service life of the motor but also may cause interference to the surrounding environment. To ensure, common toolings limit by means of limiting columns to ensure that the inner walls of the silicon steel sheet installation grooves are in the same vertical plane. Because it is necessary to ensure that the inner walls of the installation grooves are in the same vertical plane, the size of the limiting columns needs to be basically the same as the size of the inner walls of the installation grooves. At this time, both when stacking the silicon steel sheets and compressing the stacked silicon steel sheets, the silicon steel sheets will cause wear to the limiting columns, and long-term wear will cause the installation grooves of the stator after lamination to skew, seriously reducing the production quality of high-precision generator stators.

[0004] Therefore, a high-precision generator stator lamination tooling is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a high-precision generator stator lamination tooling to solve the problem that when stacking silicon steel sheets and compressing the stacked silicon steel sheets, the silicon steel sheets will cause wear to the limiting columns, and long-term wear will cause the installation grooves of the stator after lamination to skew, seriously reducing the production quality of high-precision generator stators.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A high-precision generator stator lamination tooling, comprising a base, a rotating disk is rotatably connected to the base, a driving motor is installed in the base, an output shaft of the driving motor is connected to the rotating disk, a hydraulic rod is fixedly installed on the base, a push plate is fixedly installed at a movable end of the hydraulic rod, a plurality of arc-shaped through holes are formed in the base, a limiting rod is placed in each of the arc-shaped through holes, a diameter of the limiting rod is smaller than a width of a silicon steel sheet installation groove, top and bottom of the limiting rod are both provided in a conical shape, a transmission component is installed in the base, one side of the transmission component is connected to the driving motor, the other side of the transmission component is connected to the limiting rod, a locking component is installed on the base, the locking component is connected to the limiting rod and the push plate, the driving motor drives the rotating disk to rotate, when the rotating disk rotates, the limiting column is driven to move through the transmission component, the moving limiting column cooperates with the rotating disk to laminate the silicon steel sheets, after the lamination is completed, the hydraulic rod pushes the push plate to move downward for compression, and at the same time the locking component locks the limiting rod.

[0008] When in use, the equipment is started, and the silicon steel sheets are placed on the rotating disk by an operator or a manipulator. At this time, the output shaft of the driving motor drives the rotating disk to rotate continuously, and the limiting rod in the arc-shaped through hole is driven to rotate by the rotation. Because of the rotation of the limiting rod, the silicon steel sheets will continuously fall onto the rotating disk. The back-and-forth movement of the limiting column can limit both inner walls of the silicon steel sheet installation groove at the same time, further reducing the probability of the silicon steel sheet shifting, ensuring high precision during the production of the generator stator. At the same time, compression is required after the lamination is completed. When the push plate is pressed down for pressing, the locking component locks the limiting rod to prevent the limiting rod from tilting when the silicon steel sheet is compressed, resulting in the silicon steel sheet installation grooves after pressing not being in the same position. The position of the silicon steel sheet lamination is adjusted by the limiting rod, avoiding wear of the limiting block caused by long-term use, resulting in tilting of the lamination position of the installation groove. And the limiting rod that swings back and forth can always fit the surface of the installation groove, and can always push the silicon steel sheet to rotate to the designated position, ensuring high precision during the production of the generator stator.

[0009] Preferably, the transmission assembly includes bevel gear discs, rotating rods, side bevel gears, threaded rods, transmission boxes, moving blocks, and swinging blocks. Two symmetrically arranged bevel gear discs are fixedly installed on the rotating disc. The bevel teeth on the bevel gear discs are evenly divided into multiple segments, and the multiple segments of bevel teeth on the two bevel gear discs are arranged staggeredly. A rotating rod is rotatably installed on the rotating disc. One end of the rotating rod is fixedly installed with a side bevel gear that meshes with the two bevel gear discs. A threaded rod is rotatably connected to the rotating disc, and the spiral directions of adjacent threaded rods are opposite. A transmission box is installed between the threaded rod and the other end of the rotating rod. The transmission box is installed on the rotating disc. A moving block is threadedly connected to the threaded rod. The moving block slides on the rotating disc. A swinging block is slidably connected in the arc-shaped through hole. The limiting rod is rotatably connected to the swinging block. One side of the moving block is connected to the swinging block through a pushing member.

[0010] When the output shaft of the driving motor drives the rotating disc to rotate, it drives the two bevel gear discs fixedly installed on the rotating disc to rotate simultaneously. When the multiple segments of bevel teeth on the upper bevel gear disc mesh with the side bevel gear on one side, it drives the side bevel gear to rotate forward. The forward rotation of the side bevel gear drives the rotating rod connected to one side to rotate. The rotating rod changes the rotation direction through the transmission box installed on the rotating disc, so that the rotation of the rotating rod can drive the threaded rod connected to one side through the transmission box to rotate forward. The forward rotating threaded rod drives the moving block threadedly connected to it to move to the right. Therefore, the continuous rotation of the bevel gear disc can drive the moving block to move back and forth. Of course, the moving block moving back and forth drives the swinging block and the limiting rod installed on it to move back and forth through the pushing member. The limiting rod swinging back and forth can always fit the surface of the installation groove, and can always push the silicon steel sheet to rotate to the specified position, ensuring high precision during the production of the generator stator.

[0011] Preferably, a plurality of teeth are evenly arranged on the inner wall of the arc-shaped through hole. A groove is opened on the swinging block. A spur gear sleeved on the limiting rod is rotatably connected in the groove. The spur gear meshes with the plurality of teeth. A limiting groove is opened on the spur gear. A block is slidably connected in the limiting groove. The block is fixedly installed with the limiting rod. A first compression spring is installed between the bottom of the block and the inner wall of the groove. The first compression spring is sleeved on the limiting rod.

[0012] When the moving block drives the swinging block and the limiting rod mounted thereon to move back and forth through the pushing member, the moving swinging block slides in the arc-shaped through hole, and the rotating spur gear drives the limiting rod to rotate through the clamping block in the limiting groove. Since the position where the limiting rod abuts against the silicon steel sheet is the same point, certain friction will occur during long-term use, resulting in the deviation of the uniformity of the silicon steel sheet mounting groove. Therefore, by rotating to change the angle of the limiting rod, it is possible to avoid abutting against the silicon steel sheet at the same position for a long time. The reciprocating swinging limiting rod will push the silicon steel sheet to rotate, but the silicon steel sheet will rotate with a certain inertia under the action of the driving force. And the rotation of the limiting rod can reduce the thrust generated by the limiting rod, avoiding the rotation of the silicon steel sheet due to inertia, and indirectly improving the accuracy during the production of the generator stator.

[0013] Preferably, the pushing member includes a pushing frame, a pressing plate, a telescopic rod, a second compression spring, and a suction cup. The pushing frame is fixedly installed on the moving block. There are two symmetrically arranged pressing plates between the side walls on both sides of the pushing frame. A telescopic rod is fixedly installed between the pressing plate and the pushing frame. A second compression spring that abuts against the side walls of the pressing plate and the pushing frame is sleeved on the telescopic rod. A plurality of uniformly arranged round holes are formed in the rotating disk, and suction cups are installed in the round holes. The suction cups are connected to an external air pump device.

[0014] When the first silicon steel sheet falls onto the rotating disk, the suction cups in the round holes adsorb the first silicon steel sheet through the air pump device, and the silicon steel sheet is fixed on the rotating disk by adsorption, without relative displacement with the rotating disk. When the silicon steel sheet is fixed and the moving block drives the pushing frame to move back and forth, the pressing plate pushes the swinging plate to move through the compression spring and the telescopic rod, and the limiting rod mounted thereon abuts against the mounting groove on the silicon steel sheet, so that the limiting rod does not need to move to the extreme position back and forth, and the moving distance of the limiting rod is suitable for different models of silicon steel sheets.

[0015] Preferably, a contact groove is formed in the swinging block, and a contact column is fixedly installed on one side of the pressing plate. When the swinging block abuts against the pressing plate, the contact column enters the contact groove and abuts against the limiting rod. The inner diameter of the contact groove is larger than the diameter of the contact column.

[0016] The limiting rod abuts against the mounting groove of the silicon steel sheet, so the limiting rod cannot move, that is, the swinging block cannot move. At this time, the continuously moving pushing frame will push the contact column to continue to move through the compression spring, pushing the limiting rod against the inner wall on one side, so that it can maintain a relative horizontal state with the base, ensuring the accuracy during the production of the generator stator.

[0017] Preferably, the locking assembly includes a limit plate, a conical locking block, a support column, a third compression spring, a downward pressure column, and a third compression spring. The rotating disk is slidably connected with the limit plate, the bottom of the limit plate is fixedly installed with the swing block, the bottom of the limit plate is provided with a conical groove, the push plate is provided with a plurality of evenly arranged circular holes, the circular hole is provided with a conical locking block, the conical locking block is slidably connected with a support column, the support column is fixed on the push plate, the support column is sleeved with a third compression spring, and a magnet fixedly installed on the push plate is provided under the circular hole.

[0018] When the stator silicon steel sheets are stacked to a specified number, the hydraulic cylinder is required to push the push plate downward to compress the stacked silicon steel sheets below. Because the silicon steel sheets will twist to one side during compression, they will force the limit rod to move. At the same time, because the top of the limit rod is in an open state, the silicon steel sheets are compressed and twisted. When the limit rod is pushed to move, only the bottom of the limit rod is fixed, and the top is subjected to force, which will cause the limit rod to tilt. Therefore, it is necessary to limit the top and bottom of the limit rod at the same time, and the limit rod is locked by pressing down the locking groove and conical groove on the limit rod.

[0019] Preferably, a transverse limit bar is fixedly installed in the arc-shaped through hole, and a slide groove is provided on the swing block. The cross-sections of the transverse limit bar and the slide groove are both trapezoidal, and the transverse limit bar is arranged in the slide groove. By arranging the transverse limit bar, the swing block can stably slide in the arc-shaped through groove, so that the swing block is constrained and will not be deflected, thereby increasing the stability of the swing block when moving. At the same time, the cross-sections of the transverse limit bar and the slide groove are both trapezoidal, which further restricts the swing block and improves the accuracy of stator stacking.

[0020] Preferably, a center column is fixedly mounted on the rotating disk, and the length of the center column is greater than the length of the limit rod, a long slot is provided in the center column, a pneumatic telescopic rod is fixedly mounted in the long slot, an arc-shaped limit plate is fixedly mounted on the movable end of the pneumatic telescopic rod, the pneumatic telescopic rod is connected to the telescopic rod through a pipeline, and when the swing block pushes the telescopic rod to compress it during stacking, the gas inside it will be pressed out, and the exhausted gas enters the pneumatic telescopic rod through the pipeline, and the arc-shaped limit plate is pushed open by the pneumatic telescopic rod, so that the arc-shaped limit plate moves toward the side walls of the stator center hole on both sides and presses against the side walls, so that the stator is located at the position of the center axis. Of course, when the swing block returns to its original position, the pneumatic telescopic rod pulls the arc-shaped limit plate back to its original position, making it easier to take out the stacked stator, which is convenient for the production of stator laminations.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. While the output shaft of the drive motor drives the rotating disk to rotate, it drives the limiting rod in the arc-shaped through hole to swing through the transmission component. At this time, the limiting rod also passes through the coil placement groove on the silicon steel sheet. The movement of the limiting rod can push the silicon steel sheet to rotate within a certain range, enabling it to rotate to a specified position. Of course, the back-and-forth movement of the limiting column can limit both inner walls of the silicon steel sheet installation groove at the same time, reducing the probability of the silicon steel sheet installation groove shifting and ensuring high precision during the production of the generator stator.

[0023] 2. When the moving block drives the swinging block and the limiting rod installed thereon to move back and forth through the pushing member, since the spur gear meshes with multiple teeth, the spur gear will rotate due to the teeth, and the rotating spur gear drives the limiting rod to rotate through the block in the limiting groove. By rotating, the angle of the limiting rod is changed, avoiding the wear caused by the same position against the silicon steel sheet for a long time, resulting in the inability of the installation groove of the silicon steel sheet to align with it, and indirectly improving the accuracy during the production of the generator stator.

[0024] 3. When the silicon steel sheet is compressed, it will twist to one side and force the limiting rod to move. Therefore, when the pushing plate moves downward, it pushes the lower pressing column to move downward, and the downward movement of the lower pressing column pushes the lower limiting rod to move. Of course, because the limiting plate is fixedly installed with the swinging block, the limiting plate can move with the swinging block. Therefore, the downward moving limiting rod will enter the lower conical groove, and the limiting rod is locked by the locking groove and the conical groove on the lower pressing column, preventing the limiting rod from skewing and further ensuring the production accuracy of the stator. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 is an internal structural schematic diagram of the base in the present invention;

[0027] Figure 3 is an internal top view of the base in the present invention;

[0028] Figure 4 is Figure 3 an enlarged structural schematic diagram of part A in

[0029] Figure 5 is a structural schematic diagram of the base in the present invention;

[0030] Figure 6 is Figure 5 an enlarged structural schematic diagram of part B in

[0031] Figure 7 is an internal structural schematic diagram of the swinging block in the present invention;

[0032] Figure 8Schematic internal three-dimensional structure diagram of the base in the present invention;

[0033] Figure 9 Schematic internal structure diagram of the central column in the present invention.

[0034] In the figure: 1, base; 2, push plate; 3, hydraulic rod; 4, limit rod; 5, central column; 6, arc-shaped limit plate; 7, arc-shaped through hole; 8, swing block; 9, rotating disk; 10, abutting groove; 11, conical locking block; 12, round hole; 13, support column; 14, third compression spring; 15, magnet; 16, conical shape; 17, drive motor; 18, bevel gear disk; 19, side bevel gear; 20, rotating rod; 21, transmission box; 22, moving block; 23, push frame; 24, limit plate; 25, extrusion plate; 26, threaded rod; 27, tooth; 28, conical groove; 29, second compression spring; 30, telescopic rod; 31, abutting column; 32, spur gear; 33, block; 34, groove; 35, first compression spring; 36, pneumatic telescopic rod; 37, suction cup; 38, horizontal limit strip. Detailed implementation manners

[0035] Please refer to Figures 1 to 9 , the present invention provides a high-precision generator stator lamination tooling, and the technical solution is as follows:

[0036] A high-precision generator stator lamination tooling, including a base 1, a rotating disk 9 is rotatably connected to the base 1, a drive motor 17 is installed in the base 1, an output shaft of the drive motor 17 is connected to the rotating disk 9, a hydraulic rod 3 is fixedly installed on the base 1, a push plate 2 is fixedly installed at a movable end of the hydraulic rod 3, a plurality of arc-shaped through holes 7 are formed in the base 1, limit rods 4 are placed in the arc-shaped through holes 7, a diameter of the limit rod 4 is smaller than a width of a silicon steel sheet installation groove, top and bottom of the limit rod 4 are both arranged in a conical shape 16, a transmission component is installed in the base 1, one side of the transmission component is connected to the drive motor 17, the other side of the transmission component is connected to the limit rod 4, a locking component is installed on the base 1, the locking component is connected to the limit rod 4 and the push plate 2, the drive motor 17 drives the rotating disk 9 to rotate, when the rotating disk 9 rotates, the limit column is driven to move through the transmission component, the moving limit column cooperates with the rotating disk 9 to laminate the silicon steel sheets, after the lamination is completed, the hydraulic rod 3 pushes the push plate 2 to move downwards for compression, and at the same time the locking component locks the limit rod 4.

[0037] When the device is in use, the operator or the manipulator places the silicon steel sheet on the rotating disk 9. At this time, the output shaft of the driving motor 17 drives the rotating disk 9 to rotate continuously, and the rotation drives the limit rod 4 in the arc-shaped through hole 7 to rotate. Because the rotation of the limit rod 4 causes the silicon steel sheet to continuously fall onto the rotating disk 9, of course, the limit rod 4 at this time will also pass through the mounting groove on the silicon steel sheet. At the same time, while the output shaft of the driving motor 17 drives the rotating disk 9 to rotate, the limit rod 4 on one side can be driven to move through the transmission assembly. Because the limit rod 4 is arranged in the mounting groove of the silicon steel sheet, the movement of the limit rod 4 can push the silicon steel sheet to rotate within a certain range, so that it can rotate to the specified position. Of course, the back and forth movement of the limit column can resist the inner walls on both sides of the silicon steel sheet mounting groove and move it. The silicon steel sheet is driven to rotate to the specified position by moving the mounting groove, so that the inner walls of the silicon steel sheet mounting groove are on the same vertical horizontal plane, and further The probability of silicon steel sheets being offset is reduced, and the high precision of the generator stator production is ensured. At the same time, compression is required after the lamination is completed. At this time, the upper hydraulic rod 3 is operated to drive the pushing plate 2 fixed on its active end to move downward, and squeeze the silicon steel sheets stacked below. In order to prevent the torsional force generated by the silicon steel sheets during the compression process due to the extrusion of the silicon steel sheets will push the limit rod 4 to deform, so when the pushing plate 2 is pressed down for pressing, the locking assembly locks the limit rod 4 to prevent the limit rod 4 from tilting when the silicon steel sheets are compressed, resulting in the multiple silicon steel sheet installation grooves after pressing being not in the same position. The position of the silicon steel sheet lamination is adjusted by the limit rod 4 to avoid the limit block being worn due to long-term use, which causes the installation groove overlapping position to tilt. The limit rod 4 swings back and forth so that it can always fit the surface of the installation groove, and can always push the silicon steel sheet to rotate to the specified position, thereby ensuring the high precision of the generator stator production.

[0038] The transmission assembly includes a bevel gear disk 18, a rotating rod 20, a side bevel gear 19, a threaded rod 26, a transmission box 21, a moving block 22, and a swing block 8. Two bevel gear disks 18 symmetrically arranged are fixedly installed on the rotating disk 9. The bevel teeth on the bevel gear disk 18 are evenly divided into multiple sections, and the multiple sections of bevel teeth on the two bevel gear disks 18 are staggered with each other. The rotating disk 9 is rotatably installed with a rotating rod 20, and one end of the rotating rod 20 is fixedly installed with a side bevel gear 19 meshing with the two bevel gear disks 18. The rotating disk 9 is rotatably connected with a threaded rod 26, and the spiral directions of two adjacent threaded rods 26 are opposite. A transmission box 21 is installed between the threaded rod 26 and the other end of the rotating rod 20, and the transmission box 21 is installed on the rotating disk 9. The threaded rod 26 is threadedly connected with a moving block 22 sliding on the rotating disk 9, and a swing block 8 is slidably connected in the arc through hole 7. The limit rod 4 is rotatably connected to the swing block 8, and one side of the moving block 22 is connected to the swing block 8 through a pushing member.

[0039] When the output shaft of the driving motor 17 drives the rotating disk 9 to rotate, it will drive the two bevel gear disks 18 fixedly installed on the rotating disk 9 to rotate simultaneously. The bevel teeth on the two rotating bevel gear disks 18 are evenly divided into multiple segments. When the multiple segments of bevel teeth on the upper bevel gear disk 18 mesh with the side bevel gear 19 on one side, it drives the side bevel gear 19 to rotate forward. The forward rotation of the side bevel gear 19 drives the rotating rod 20 connected to one side to rotate. The rotating rod 20 changes the rotation direction through the transmission box 21 installed on the rotating disk 9, so that the rotation of the rotating rod 20 can drive the threaded rod 26 connected to one side through the transmission box 21 to rotate forward. The forward rotating threaded rod 26 drives the moving block 22 threadedly connected thereto to move to the right. Of course, because the spiral directions of two adjacent threaded rods 26 are opposite, the two adjacent moving blocks 22 will move closer to each other. By moving closer to each other, it avoids squeezing the silicon steel sheet, preventing the torsional force generated during the compression of the silicon steel sheet from driving the silicon steel sheet to deflect to one side. Since it is not certain which direction it will deflect, it is limited simultaneously on both sides to prevent the installation groove from deviating when the silicon steel sheet generates torsion. When the multiple segments of bevel teeth on the lower bevel gear disk 18 mesh with the side bevel gear 19 on one side, it drives the side bevel gear 19 to rotate in the reverse direction. The forward rotation of the side bevel gear 19 drives the rotating rod 20 connected to one side to rotate. The rotating rod 20 changes the rotation direction through the transmission box 21 installed on the rotating disk 9, so that the rotation of the rotating rod 20 can drive the threaded rod 26 connected to one side through the transmission box 21 to rotate in the reverse direction. The reversely rotating threaded rod 26 drives the moving block 22 threadedly connected thereto to move to the left. Therefore, the continuous rotation of the bevel gear disk 18 can drive the moving block 22 to move back and forth. Of course, the moving block 22 moving back and forth drives the swing block 8 and the limiting rod 4 installed thereon to move back and forth through the pushing member. Through the limiting rod 4 swinging back and forth, it can always fit the surface of the installation groove and always push the silicon steel sheet to rotate to the specified position, ensuring high precision during the production of the generator stator.

[0040] A plurality of teeth 27 are evenly arranged on the inner wall of the arc-shaped through hole 7. A groove 34 is formed on the swing block 8. A spur gear 32 sleeved on the limiting rod 4 is rotatably connected in the groove 34. The spur gear 32 meshes with the plurality of teeth 27. A limiting groove is formed on the spur gear 32. A block 33 is slidably connected in the limiting groove. The block 33 is fixedly installed with the limiting rod 4. A first compression spring 35 is installed between the bottom of the block 33 and the inner wall of the groove 34. The first compression spring 35 is sleeved on the limiting rod 4.

[0041] When the moving block 22 drives the swing block 8 and the limit rod 4 mounted thereon to move back and forth through the pusher, the moving swing block 8 slides within the arc-shaped through hole 7. Since the spur gear 32 meshes with a plurality of engaging teeth 27 and the spur gear 32 is sleeved on the limit rod 4, the swing block 8 will drive the spur gear 32 to move simultaneously during the sliding process. As a result, the spur gear 32 will rotate due to the engaging teeth 27. The rotating spur gear 32 drives the limit rod 4 to rotate through the block 33 within the limit groove. Since the position where the limit rod 4 abuts against the silicon steel sheet is the same point, certain friction will occur during long-term use, leading to the deviation of the uniformity of the silicon steel sheet mounting groove. Therefore, by rotating to change the angle of the limit rod 4, it is possible to avoid abutting against the silicon steel sheet at the same position for a long time. The reciprocating swing of the limit rod 4 will push the silicon steel sheet to rotate. However, the silicon steel sheet will generate a certain inertial rotation under the action of the driving force. Since the rotating limit rod 4 can change the direction of the force generated after the collision and disperse the force generated by the collision, the rotation of the limit rod 4 can reduce the thrust generated by the limit rod 4, avoiding the rotation of the silicon steel sheet due to inertia and indirectly improving the accuracy during the production of the generator stator.

[0042] The pusher includes a pusher frame 23, a pressing plate 25, a telescopic rod 30, a second compression spring 29, and a suction cup 37. The pusher frame 23 is fixedly installed on the moving block 22. There are two symmetrically arranged pressing plates 25 between the side walls on both sides of the pusher frame 23. A telescopic rod 30 is fixedly installed between the pressing plate 25 and the side wall of the pusher frame 23. The telescopic rod 30 is sleeved with a second compression spring 29 that abuts against the side walls of the pressing plate 25 and the pusher frame 23. A plurality of uniformly arranged mounting holes are formed on the rotating disk 9, and the suction cup 37 is installed in the mounting hole. The suction cup 37 is connected to an external air pump device.

[0043] When the first silicon steel sheet drops onto the rotating disk 9, the suction cup 37 within the round hole 12 adsorbs the first silicon steel sheet through the air pump device. By adsorbing the silicon steel sheet, the silicon steel sheet is fixed on the rotating disk 9 and there will be no relative displacement with the rotating disk 9. After the silicon steel sheet is fixed, the moving block 22 drives the pusher frame 23 to move back and forth. Since the telescopic rod 30 is fixedly installed between the pressing plate 25 and the pusher frame 23, the pressing plate 25 can move back and forth through the telescopic rod 30. At the same time, the installed second compression spring 29 can make the compressed telescopic rod 30 return to its original position. When the pressing plate 25 pushes the swing plate to move through the compression spring and the telescopic rod 30, the limit rod 4 mounted thereon abuts against the mounting groove on the silicon steel sheet, enabling the limit rod 4 not to move to the extreme position back and forth, making the moving distance of the limit rod 4 suitable for different models of silicon steel sheets and greatly improving the applicable range of the device.

[0044] The swinging block 8 is provided with an abutting groove 10. One side of the extrusion plate 25 is fixedly installed with an abutting column 31. When the swinging block 8 abuts against the extrusion plate 25, the abutting column 31 enters the abutting groove 10 and abuts against the limiting rod 4. The inner diameter of the abutting groove 10 is twice the diameter of the abutting column 31.

[0045] The limiting rod 4 needs to rotate and swing back and forth for a long time. The limiting rod 4 is rotatably connected to the swinging block 8. At the same time, when the silicon steel sheet is compressed, it will twist to one side and forcibly push the limiting rod 4 to deflect. Therefore, when the limiting rod 4 abuts against the silicon steel sheet installation groove for a long time, it will produce a slight deflection. Therefore, during the process of the extrusion plate 25 moving and abutting against one side of the swinging block 8, the fixedly installed abutting column 31 on it will be sent into the abutting groove 10. Because the limiting rod 4 abuts against the installation groove of the silicon steel sheet, the limiting rod 4 cannot move any more, that is, the swinging block 8 cannot move. At this time, the continuously moving push frame 23 will push the abutting column 31 to continue moving by compressing the spring, and push the limiting rod 4 against the inner wall of one side, so that it can maintain a relative horizontal state with the base 1, ensuring the accuracy during the production of the generator stator.

[0046] The locking assembly includes a limiting plate 24, a conical locking block 11, a support column 13, a third compression spring 14, a pressing column, and a third compression spring 14. The limiting plate 24 is slidably connected to the rotating disc 9. The bottom of the limiting plate 24 is fixedly installed with the swinging block 8. The bottom of the limiting plate 24 is provided with a conical groove 28. The pushing plate 2 is provided with a plurality of uniformly arranged round holes 12. The round holes 12 are provided with conical locking blocks 11. The conical locking blocks 11 are slidably connected to the support columns 13. The support columns 13 are fixed on the pushing plate 2. The support columns 13 are sleeved with third compression springs 14. Below the round holes 12, there is a magnet 15 fixedly installed on the pushing plate 2.

[0047] When the stator silicon steel sheets are stacked to the specified number, the hydraulic cylinder needs to push the pushing plate 2 downward to compress the stacked silicon steel sheets below. Because the silicon steel sheets will twist to one side during compression and forcibly push the limiting rod 4 to move, and at the same time, because the top of the limiting rod 4 is in an open state, when the silicon steel sheets are compressed and twisted to push the limiting rod 4 to move, the limiting rod 4 is only fixed at the bottom and will be inclined when a force is applied to the top, so at this time, it is necessary to limit both the top and bottom of the limiting rod 4 to prevent the limiting rod 4 from deflecting. Therefore, when the pushing plate 2 moves downward, it drives the conical locking block 11 to move downward, so that the limiting rod 4 can enter the conical locking block 11 through the round hole 12. Of course, because there is a magnet 15 fixedly installed on the pushing plate 2 below the round hole 12, the conical locking block 11 can move with the swinging block 8. Therefore, the downward moving limiting rod 4 will enter the lower conical groove 28, and the limiting rod 4 is locked by the upper and lower locking grooves and the conical groove 28 to prevent the limiting rod 4 from deflecting, further ensuring the production accuracy of the stator.

[0048] A transverse limiting strip 38 is fixedly installed inside the arc-shaped through hole 7. A sliding groove is formed on the swinging block 8. The cross-sections of the transverse limiting strip 38 and the sliding groove are both trapezoidal. The transverse limiting strip 38 is arranged inside the sliding groove.

[0049] By arranging the transverse limiting strip 38, the swinging block 8 can stably slide in the arc-shaped through groove, so that the swinging block 8 is restricted and will not deflect, increasing the stability of the swinging block 8 during movement. At the same time, the cross-sections of the transverse limiting strip 38 and the sliding groove are both trapezoidal, further restricting the swinging block 8 and improving the accuracy during stator stacking.

[0050] A central column 5 is fixedly installed on the rotating disk 9. A long groove is formed inside the central column 5. A pneumatic telescopic rod 36 is fixedly installed inside the long groove. The movable end of the pneumatic telescopic rod 36 is fixedly installed with an arc-shaped limiting plate 6. The pneumatic telescopic rod 36 is connected to the telescopic rod 30 through a pipeline.

[0051] When the swinging block 8 pushes the telescopic rod 30 to be compressed during stacking, the gas inside it will be discharged. The discharged gas enters the pneumatic telescopic rod 36 through the pipeline. The pneumatic telescopic rod 36 pushes the arc-shaped limiting plate 6 away, so that the arc-shaped limiting plate 6 moves towards the side walls of the central holes of the stators on both sides and abuts against the side walls, making the stator located at the position of the central axis. Of course, when the swinging block 8 returns to its original position, the pneumatic telescopic rod 36 pulls the arc-shaped limiting plate 6 back to its original position, making it easier to take out the stacked stator and facilitating the production of stator laminations.

[0052] When stacking the stator, the operator or the manipulator places the silicon steel sheet on the rotating disk 9. At this time, the output shaft of the drive motor 17 drives the rotating disk 9 to rotate continuously. The rotation drives the limiting rod 4 inside the arc-shaped through hole 7 to rotate. Because of the rotation of the limiting rod 4, the silicon steel sheets will continuously fall onto the rotating disk 9. Of course, at this time, the limiting rod 4 will also pass through the coil placement grooves on the silicon steel sheets.

[0053] When the first silicon steel sheet falls onto the rotating disk 9, the suction cup 37 inside the round hole 12 adsorbs the first silicon steel sheet through the air pump device. By adsorbing the silicon steel sheet, the silicon steel sheet is fixed on the rotating disk 9 and will not produce relative displacement with the rotating disk 9.

[0054] When the output shaft of the driving motor 17 drives the rotating disk 9 to rotate, it will drive the two bevel gear disks 18 fixedly installed on the rotating disk 9 to rotate simultaneously. The bevel teeth on the two rotating bevel gear disks 18 are evenly divided into multiple segments. When the multiple segments of bevel teeth on the upper bevel gear disk 18 mesh with the side bevel gear 19 on one side, it drives the side bevel gear 19 to rotate forward. The forward rotation of the side bevel gear 19 drives the rotating rod 20 connected to one side to rotate. The rotating rod 20 changes the rotation direction through the transmission box 21 installed on the rotating disk 9, so that the rotation of the rotating rod 20 can drive the threaded rod 26 connected to one side through the transmission box 21 to rotate forward. The forward rotating threaded rod 26 drives the moving block 22 threadedly connected thereto to move to the right. Of course, because the spiral directions of adjacent two threaded rods 26 are opposite, the adjacent two moving blocks 22 will move closer to each other. When the multiple segments of bevel teeth on the lower bevel gear disk 18 mesh with the side bevel gear 19 on one side, it drives the side bevel gear 19 to rotate reversely. The forward rotation of the side bevel gear 19 drives the rotating rod 20 connected to one side to rotate. The rotating rod 20 changes the rotation direction through the transmission box 21 installed on the rotating disk 9, so that the rotation of the rotating rod 20 can drive the threaded rod 26 connected to one side through the transmission box 21 to rotate reversely. The reversely rotating threaded rod 26 drives the moving block 22 threadedly connected thereto to move to the left. Therefore, the continuous rotation of the bevel gear disk 18 can drive the moving block 22 to move back and forth.

[0055] When the silicon steel sheet is fixed, the moving block 22 drives the pushing frame 23 to move back and forth. Since the telescopic rod 30 is fixedly installed between the pressing plate 25 and the pushing frame 23, the pressing plate 25 can move back and forth through the telescopic rod 30. At the same time, the installed second compression spring 29 enables the compressed telescopic rod 30 to return to its original position. When the pressing plate 25 pushes the swing plate to move through the compression spring and the telescopic rod 30, the limiting rod 4 installed thereon abuts against the installation groove on the silicon steel sheet, so that the limiting rod 4 does not need to move back and forth to the extreme position. Of course, during the process that the pressing plate 25 moves and abuts against one side of the swing block 8, the abutting column 31 fixed thereon will be sent into the abutting groove 10. Because the limiting rod 4 abuts against the installation groove of the silicon steel sheet, the limiting rod 4 cannot move any further, that is, the swing block 8 cannot move. At this time, the continuously moving pushing frame 23 will push the abutting column 31 to continue moving through the compression spring, and push the limiting rod 4 to closely abut against the inner wall on one side, so that it can maintain a relative horizontal state with the base 1.

[0056] When the swing block 8 and the limit rod 4 mounted thereon move back and forth, the moving swing block 8 slides in the arc-shaped through hole 7. Since the spur gear 32 meshes with a plurality of engaging teeth 27 and the spur gear 32 is sleeved on the limit rod 4, when the swing block 8 slides, it will drive the spur gear 32 to move simultaneously, causing the spur gear 32 to rotate due to the engaging teeth 27. The rotating spur gear 32 drives the limit rod 4 to rotate through the locking block 33 in the limit groove. Since the position where the limit rod 4 abuts against the silicon steel sheet is the same point, certain friction will occur during long-term use, resulting in the deviation of the uniformity of the silicon steel sheet mounting groove. Therefore, by rotating to change the angle of the limit rod 4, the silicon steel sheet can be prevented from being abutted at the same position for a long time.

[0057] After the lamination is completed, the hydraulic cylinder pushes the push plate 2 downward to compress the silicon steel sheets stacked below. Since the silicon steel sheets will twist to one side during compression, it will force the limit rod 4 to move. At the same time, because the top of the limit rod 4 is in an open state, when the silicon steel sheets are compressed and twisted to push the limit rod 4 to move, only the bottom of the limit rod 4 is fixed and the top is subjected to force, which will cause the limit rod 4 to tilt. Therefore, at this time, it is necessary to limit both the top and bottom of the limit rod 4 to prevent the limit rod 4 from deflecting. So when the push plate 2 moves downward, it drives the conical locking block 11 to move downward, enabling the limit rod 4 to enter the conical locking block 11 through the round hole 12. Of course, because there is a magnet 15 fixedly installed on the push plate 2 below the round hole 12, the conical locking block 11 can move with the swing block 8. So the downward-moving limit rod 4 will enter the lower conical groove 28, and the limit rod 4 is locked by the locking groove pressing down on the upper and the conical groove 28 to prevent the limit rod 4 from deflecting.

[0058] The above has described in detail a specific embodiment of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiment. For those skilled in the art, without departing from the principles and ideas of the present invention, various changes, modifications, substitutions, and variations made to these embodiments should still fall within the protection scope of the present invention.

Claims

1. A high-precision generator stator lamination tooling, comprising a base (1), a rotating disk (9) rotatably connected to the base (1), a drive motor (17) installed in the base (1), an output shaft of the drive motor (17) connected to the rotating disk (9), a hydraulic rod (3) fixedly installed on the base (1), a push plate (2) fixedly installed on the movable end of the hydraulic rod (3), characterized in that: The base (1) is provided with a plurality of arc-shaped through holes (7), and a limiting rod (4) is placed in each of the arc-shaped through holes (7). The diameter of the limiting rod (4) is smaller than the width of the silicon steel sheet installation groove. The top and bottom of the limiting rod (4) are both arranged in a conical shape (16). A transmission assembly is installed in the base (1), one side of the transmission assembly is connected to the driving motor (17), and the other side of the transmission assembly is connected to the limiting rod (4). A locking assembly is installed on the base (1), and the locking assembly is connected to the limiting rod (4) and the pushing plate (2). The driving motor (17) drives the rotating disk (9) to rotate. When the rotating disk (9) rotates, the limiting column is driven to move through the transmission assembly. The moving limiting column cooperates with the rotating disk (9) to stack the silicon steel sheets. After the stacking is completed, the hydraulic rod (3) pushes the pushing plate (2) downward to compress it, and the locking assembly locks the limiting rod (4) at the same time.

2. A high-precision generator stator lamination tooling according to claim 1, characterized in that The transmission assembly comprises a bevel gear plate (18), a rotating rod (20), a side bevel gear (19), a threaded rod (26), a transmission box (21), a moving block (22), and a swing block (8). The rotating plate (9) is fixedly mounted with two bevel gear plates (18) symmetrically arranged with each other. The bevel teeth on the bevel gear plates (18) are evenly divided into multiple sections, and the multiple sections of bevel teeth on the two bevel gear plates (18) are staggered with each other. The rotating plate (9) is rotatably mounted with a rotating rod (20). One end of the rotating rod (20) is fixedly mounted with a side bevel gear (19) meshing with the two bevel gear plates (18). A threaded rod (26) is rotatably connected to the rotating disk (9), and the spiral directions of two adjacent threaded rods (26) are opposite. A transmission box (21) is installed between the threaded rod (26) and the other end of the rotating rod (20), and the transmission box (21) is installed on the rotating disk (9). A moving block (22) is threadedly connected to the threaded rod (26), and the moving block (22) slides on the rotating disk (9). A swing block (8) is slidably connected in the arc-shaped through hole (7), and the limit rod (4) is rotatably connected to the swing block (8). One side of the moving block (22) is connected to the swing block (8) through a pushing member.

3. A high-precision generator stator lamination tooling according to claim 2, characterized in that A plurality of latch teeth (27) are evenly arranged on the inner wall of the arc-shaped through hole (7), a groove (34) is provided on the swing block (8), a spur gear (32) sleeved on the limit rod (4) is rotatably connected in the groove (34), the spur gear (32) is meshed with the plurality of latch teeth (27), a limit groove is provided on the spur gear (32), a clamping block (33) is slidably connected in the limit groove, the clamping block (33) is fixedly installed with the limit rod (4), a first compression spring (35) is installed between the bottom of the clamping block (33) and the inner wall of the groove (34), and the first compression spring (35) is sleeved on the limit rod (4).

4. A high-precision generator stator lamination tooling according to claim 3, characterized in that The pushing member comprises a pushing frame (23), an extrusion plate (25), a telescopic rod (30), a second compression spring (29), and a suction cup (37). The pushing frame (23) is fixedly mounted on the moving block (22). Two symmetrically arranged extrusion plates (25) are arranged between the side walls of the pushing frame (23). A telescopic rod (30) is fixedly mounted between the extrusion plate (25) and the pushing frame (23). The telescopic rod (30) is sleeved with a second compression spring (29) abutting against the extrusion plate (25) and the side wall of the pushing frame (23). The rotating disk (9) is provided with a plurality of evenly arranged mounting holes. A suction cup (37) is installed in the mounting hole. The suction cup (37) is connected to an external air pump device.

5. A high-precision generator stator lamination tooling according to claim 4, characterized in that The swing block (8) is provided with an abutment groove (10), and an abutment column (31) is fixedly installed on one side of the extrusion plate (25). When the swing block (8) abuts the extrusion plate (25), the abutment column (31) enters the abutment groove (10) and abuts against the limit rod (4). The inner diameter of the abutment groove (10) is greater than the diameter of the abutment column (31).

6. A high-precision generator stator lamination tooling according to claim 5, characterized in that The locking assembly comprises a limit plate (24), a conical locking block (11), a support column (13), a third compression spring (14), a lower pressure column, and a third compression spring (14); the limit plate (24) is slidably connected to the rotating disk (9); the bottom of the limit plate (24) is fixedly installed with the swing block (8); a conical groove (28) is provided at the bottom of the limit plate (24); a plurality of evenly arranged circular holes (12) are provided on the push plate (2); a conical locking block (11) is provided on the circular hole (12); a support column (13) is slidably connected to the conical locking block (11); the support column (13) is fixed on the push plate (2); a third compression spring (14) is sleeved on the support column (13); a magnet (15) fixedly installed on the push plate (2) is provided under the circular hole (12).

7. The high-precision generator stator lamination tooling according to claim 2, characterized in that A transverse limit strip (38) is fixedly installed in the arc-shaped through hole (7), and a slide groove is provided on the swing block (8). The cross-sections of the transverse limit strip (38) and the slide groove are both trapezoidal, and the transverse limit strip (38) is arranged in the slide groove.

8. The high-precision generator stator lamination tooling according to claim 1, characterized in that A center column (5) is fixedly mounted on the rotating disk (9), and the length of the center column (5) is greater than the length of the limiting rod (4). A long groove is provided in the center column (5), and a pneumatic telescopic rod (36) is fixedly mounted in the long groove. An arc-shaped limiting plate (6) is fixedly mounted on the movable end of the pneumatic telescopic rod (36), and the pneumatic telescopic rod (36) is connected to the telescopic rod (30) through a pipeline.

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