A motor rotor core lamination device

Abstract

The present invention discloses a motor rotor core lamination device, which is suitable for assembling multi-layer cores and rotor shafts, and comprises a core feeding mechanism, a transverse movement mechanism, a core lamination mechanism, a core pressing mechanism, a rotor shaft positioning fixture, a translation slide mechanism, and a feeding mechanism. The feeding mechanism delivers the core to the assembly position, and two core pressing mechanisms are provided on the core transverse movement mechanism. During operation, one mechanism grabs the core while the other presses the core on the rotating shaft. The positioning mechanism is used to ensure the verticality of the rotating shaft, and the device can adapt to the assembly of rotors of different heights and diameters. The present invention solves the problems of a cumbersome core lamination process, excessive manual repetitive actions, and easy errors. It also solves the problem of difficulty in maintaining press-fit coaxiality and parallelism, and realizes automatic loading and unloading of cores, automatic feeding of rotating shafts, and multi-layer lamination, thereby improving production efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of new energy motors for automobiles, and specifically discloses a motor rotor core lamination device. Background Art

[0002] In the existing technology, the motor rotor core lamination equipment generally manually places the rotor core laminations layer by layer into the rotor shaft, and then completes the upper and lower pressing work after clamping by the tooling. This method has many processes, especially when there are many layers on the rotor core side. It is difficult to align multiple rotor cores, which limits production efficiency and has a certain impact on quality reliability. Therefore, it is urgent to develop a motor rotor core lamination equipment to improve the pressing accuracy and efficiency of the motor rotor core. Summary of the Invention

[0003] In response to the technical problems existing in the prior art, the present invention provides a motor rotor core stacking device, which effectively solves the problems of cumbersome core stacking process, excessive manual repetitive actions, and easy errors. At the same time, it can ensure the coaxiality of the core and the motor rotor shaft during press-fitting, ensure the parallelism of the core during press-fitting, realize automatic loading and unloading, automatic shaft insertion, multi-layer stacking, and improve production efficiency.

[0004] The present invention discloses a motor rotor core lamination device, which comprises a rotor shaft positioning tool and a core pressing power source arranged to extend along the Z axis. The core pressing power source is coaxially arranged directly above the rotor shaft positioning tool. A transverse movement mechanism capable of displacement along the Y axis is arranged between the core pressing power source and the rotor shaft positioning tool. Two groups of core lamination mechanisms extending along the Z axis are arranged on the movable end of the transverse movement mechanism. Each group of core lamination mechanisms comprises a mounting frame capable of displacement along the Z axis. Each One end of the mounting frame is provided with a plug-in mechanism for cooperating with the iron core pressing power source, and the other end is provided with a clamping and shifting mechanism for clamping the iron core. A core feeding mechanism is provided next to the rotor shaft positioning tool, which is symmetrically arranged relative to it and extends along the X-axis. The Y-direction spacing between the two core feeding mechanisms is twice the Y-direction spacing between the two core stacking mechanisms. Each core feeding mechanism includes a linear module extending along the X-axis and an iron core correction tool connected to the movable end of the linear module and capable of rotating around the Z-axis.

[0005] In a preferred embodiment of the present invention, the iron core correction tool includes a base, and the base is provided with a tensioning clamp that can rotate around the Z axis and displace around the Z axis, the outer diameter of the tensioning clamp corresponds to the inner diameter of the iron core, and a positioning key is fixedly provided on the base, the shape of the positioning key corresponds to the shape of the keyway on the iron core, and the base is provided with a sensor for detecting whether the position of the keyway on the iron core corresponds to the position of the positioning key.

[0006] In a preferred embodiment of the present invention, first, the robot grasps a single iron core and transfers it to the tensioning clamp for coaxial connection, and then the tensioning clamp drives the iron core to rotate until the sensor senses that the position of the keyway on the iron core corresponds to the position of the positioning key, and then the tensioning clamp drives the iron core downward so that the keyway cooperates with the positioning key.

[0007] In a preferred embodiment of the present invention, a mounting plate is connected to the movable end of the transverse movement mechanism, and two guide rail slider mechanisms arranged at intervals along the Y-axis and extending in the Z-axis and two lifting cylinders arranged at intervals along the Y-axis and extending in the Z-axis are provided on the mounting plate. The two guide rail slider mechanisms are located on the outside of the two lifting cylinders, and the sliders of an adjacent guide rail slider mechanism and the piston rod end of a lifting cylinder are simultaneously connected to a mounting frame.

[0008] In a preferred embodiment of the present invention, the mounting frame includes two parallel front plates and a rear plate, the front plate and the rear plate are connected by two side plates arranged at intervals along the Y-axis, the side plates are connected to the piston rod of the lifting cylinder, the top ends of the front plate and the rear plate are provided with a top plate, the top plate is connected to a plug-in mechanism, and the bottom ends of the side plates are connected to a clamping and shifting mechanism.

[0009] In a preferred embodiment of the present invention, the plug-in mechanism includes a connecting base, the top of the connecting base is provided with a plug-in slot extending through along the Y-axis, and the projection shape of the plug-in slot in a plane perpendicular to the Y-axis is T-shaped.

[0010] In a preferred embodiment of the present invention, the clamping and shifting mechanism includes an upper pressing plate designed according to the end face of the iron core and a pair of iron core clamps arranged at intervals along the Y-axis direction below the upper pressing plate. The two iron core clamps are driven closer or farther away by a clamping cylinder extending along the Y-axis direction.

[0011] In a preferred embodiment of the present invention, the core clamp is provided with two buffer blocks symmetrically arranged relative to the Y axis, the angle between the two buffer blocks is an obtuse angle, and each buffer block is in line contact with the outer peripheral surface of the core.

[0012] In a preferred embodiment of the present invention, the iron core pressing power source includes a servo cylinder extending along the Z-axis and a plug-in rod connected to the lifting end of the servo cylinder, the plug-in rod is in the shape of a stepped shaft, and the plug-in rod includes a connecting rod portion for connecting the servo cylinder and a disc portion for cooperating with the plug-in slot of the plug-in mechanism, and the projection shape of the disc portion in a plane perpendicular to the Y-axis corresponds to the projection shape of the plug-in slot in a plane perpendicular to the Y-axis.

[0013] In a preferred embodiment of the present invention, the rotor shaft positioning tooling includes a circular positioning sleeve and a stacking guide tooling. The diameter of the center hole of the circular positioning sleeve corresponds to the outer diameter of the rotor shaft. The bottom of the circular positioning sleeve is provided with an elastic element and a sensor. The inner diameter of the stacking guide tooling corresponds to the outer diameter of the end of the rotor shaft. The end of the stacking guide tooling is provided with a guide cone surface. The outer peripheral surface of the stacking guide tooling is provided with a guide rib plate, and the shape of the guide rib plate corresponds to the shape of the keyway on the iron core.

[0014] The beneficial effects of the present invention are as follows: the present invention has the advantages of compact structure, high degree of automation, high press-fitting precision, and good press-fitting stability, and effectively solves the problems of cumbersome iron core stacking process, excessive manual repetitive actions, and easy errors, while ensuring the press-fitting coaxiality of the iron core and the motor rotor shaft, ensuring the press-fitting parallelism of the iron core, realizing automatic loading and unloading, automatic shaft insertion, and multi-layer stacking, thereby improving production efficiency;

[0015] Furthermore, the stacking mechanism of the present invention is composed of two identical press-fitting slides to realize the process of alternating material picking and stacking; the press-fitting slide has the dual functions of parts grabbing and pressing, and the pressure head part is provided with a two-layer structure, the bottom layer is the grabbing claw, and the upper layer is the pressing surface designed according to the end face of the product. When picking up the material, the claw is clamped by the cylinder to control the clamping claw to clamp the iron core. When stacking, the claw opens, and the iron core slides into the rotor shaft through the guide tooling. The pressing surface on the pressure head contacts the iron core and presses down as a whole to complete the stacking tooling; each press-fitting slide is equipped with a lifting cylinder for lifting and lowering the iron core. The pressing process is completed by a servo electric cylinder, and the two press-fitting slides share one servo electric cylinder. In order to realize the press-fitting action, the piston rod of the electric cylinder is equipped with a boss, and the upper part of the stacking mechanism is provided with a groove. After moving left and right, the boss of the piston rod can be hooked to perform the press-fitting action, so that one servo cylinder corresponds to two press-fitting tables, which reduces one servo cylinder and reduces equipment investment, making the structure of the present invention more compact. It is used to realize the left and right transverse movement of the iron core stacking mechanism. Two iron core stacking mechanisms are installed on this mechanism; the left and right movement station switching of the two same-type press-fitting slides of the present invention is realized by the transverse movement mechanism, thereby realizing that the two same-type press-fitting slides can be grasped and stacked synchronously by the stacking mechanism, which greatly improves the working efficiency of the present invention;

[0016] Furthermore, the present invention can realize automatic position correction of randomly placed circular iron cores by introducing an iron core correction tool. After the iron core correction tool has a tensioning clamping claw to clamp the iron core, a force is generated by a cylinder to pull the iron core downward. At the same time, the tool starts to rotate under the drive of a servo motor. When it rotates to the iron core keyway position, the iron core is pulled by the cylinder to fall into the tool keyway position. At the same time, a sensor detects that the iron core keyway is accurately aligned and determines that its angle is uniform.

[0017] Furthermore, the movable end of the transverse movement mechanism of the present invention is connected to a mounting plate, and the mounting plate is provided with two guide rail slider mechanisms spaced apart along the Y-axis and extending in the Z-axis, and two lifting cylinders spaced apart along the Y-axis and extending in the Z-axis. The two guide rail slider mechanisms are located outside the two lifting cylinders, and the sliders of adjacent guide rail slider mechanisms and the piston rod ends of adjacent lifting cylinders are simultaneously connected to a mounting bracket. The above structural design has the advantages of compact structure and easy replacement.

[0018] Furthermore, the mounting frame of the present invention includes two parallel front plates and a rear plate, the front plate and the rear plate being connected by two side plates spaced apart along the Y-axis direction, the side plates being connected to the piston rod of the lifting cylinder, the top ends of the front plate and the rear plate being provided with a top plate, the top plate being connected to a plug-in mechanism, and the bottom ends of the side plates being connected to a clamping and shifting mechanism. This structure is not only lightweight, but also allows the lifting and lowering of a single mounting frame to be independently controlled by the lifting cylinder, thereby achieving synchronous operation of iron core stacking and iron core clamping;

[0019] Furthermore, the plug-in mechanism of the present invention includes a connecting base, the top of the connecting base is provided with a plug-in slot extending and penetrating along the Y-axis, the projection shape of the plug-in slot in a plane perpendicular to the Y-axis is T-shaped, the iron core press-fitting power source includes a servo cylinder extending along the Z-axis and a plug-in rod connected to the lifting end of the servo cylinder, the plug-in rod is in the shape of a stepped shaft, the plug-in rod includes a connecting rod portion for connecting the servo cylinder and a disc portion for cooperating with the plug-in slot of the plug-in mechanism, the projection shape of the disc portion in a plane perpendicular to the Y-axis corresponds to the projection shape of the plug-in slot in a plane perpendicular to the Y-axis, this structural design can realize the lifting and lowering of one servo electric cylinder compatible with two mounting frames, which not only reduces the manufacturing cost of the setting, but also improves the working efficiency of the equipment;

[0020] Furthermore, the clamping and transposition mechanism of the present invention includes an upper pressing plate designed according to the end face of the iron core and a pair of iron core clamping jaws arranged at intervals along the Y-axis below the upper pressing plate. The two iron core clamping jaws are driven to move closer or farther apart by a clamping cylinder extending along the Y-axis. This structural design can achieve close and stable clamping and material removal.

[0021] Furthermore, the core clamp of the present invention is provided with two buffer blocks arranged symmetrically with respect to the Y axis, the angle between the two buffer blocks is an obtuse angle, and each buffer block is in line contact with the outer surface of the core. This structural design can protect the core from damage;

[0022] Furthermore, the camera adjustment plate of the present invention is provided with at least one pair of arc-shaped holes, the centers of the arc-shaped holes being located on the optical axis of the camera. The camera adjustment plate is fixedly connected to the camera fixing plate via screws passing through the arc-shaped holes. The camera is connected to the camera adjustment plate. This technical solution is more conducive to adjusting the position of the camera.

[0023] Furthermore, the rotor shaft positioning tooling of the present invention includes a circular positioning sleeve and a stacking guide tooling, the diameter of the center hole of the circular positioning sleeve corresponds to the outer diameter of the rotor shaft, the bottom of the circular positioning sleeve is provided with an elastic element and a sensor, the inner diameter of the stacking guide tooling corresponds to the outer diameter of the end of the rotor shaft, the end of the stacking guide tooling is provided with a guide cone surface, and the outer peripheral surface of the stacking guide tooling is provided with a guide rib, the shape of the guide rib corresponds to the shape of the keyway on the iron core. This structural design ensures the coaxiality between the rotor shaft and the press-fitting shaft, and the boss keyway on the tooling can ensure the parallelism of the iron core stacking surface, thereby ensuring the stacking quality, the iron core is coaxial and the parallelism of each layer of iron core is uniform, thereby ensuring the consistency of the gap between the rotor and the stator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the iron core of the present invention;

[0025] Figure 2 is a schematic diagram of the motor shaft of the present invention;

[0026] Figure 3 It is a schematic diagram of a motor rotor core lamination device according to the present invention;

[0027] Figure 4 This is a schematic diagram of an iron core feeding mechanism of a motor rotor iron core lamination device of the present invention;

[0028] Figure 5 This is a schematic diagram of an iron core correction tool for a motor rotor iron core lamination device of the present invention;

[0029] Figure 6 This is a schematic diagram of a power source for pressing the cores of a motor rotor core lamination device according to the present invention;

[0030] Figure 7 This is a schematic diagram of a transverse movement mechanism of a motor rotor core lamination device according to the present invention;

[0031] Figure 8 This is a schematic diagram of a press slide for a motor rotor core lamination device according to the present invention.

[0032] Figure 9 This is a schematic diagram of a press slide for a motor rotor core lamination device according to the present invention.

[0033] Figure 10 This is a schematic diagram of the coordination of the plug-in rods and plug-in slots of a motor rotor core lamination device of the present invention;

[0034] Figure 11 This is a schematic diagram of a clamping and transposition mechanism of a motor rotor core lamination device according to the present invention;

[0035] Figure 12 This is a schematic diagram of a clamping and transposition mechanism of a motor rotor core lamination device according to the present invention;

[0036] Figure 13 This is a schematic diagram of a rotor shaft positioning tool for a motor rotor core lamination device according to the present invention;

[0037] Figure 14 This is a schematic diagram of the interior of a circular positioning sleeve of a motor rotor core lamination device according to the present invention;

[0038] Figure 15 This is a schematic diagram of a circular positioning sleeve of a motor rotor core lamination device according to the present invention;

[0039] Figure 16 This is a schematic diagram of a circular positioning sleeve of a motor rotor core lamination device according to the present invention;

[0040] Figure 17 This is a schematic diagram of a lamination guide tooling of a motor rotor core lamination device according to the present invention;

[0041] Figure 18 This is a schematic diagram of a lamination guide tooling of a motor rotor core lamination device according to the present invention;

[0042] Figure 19 This is a working flow chart of a motor rotor core lamination device of the present invention;

[0043] In the figure: 1- iron core feeding mechanism, 2- iron core stacking mechanism, 3- transverse movement mechanism, 4- rotor shaft positioning fixture, 5- mounting plate, 6- guide rail slider mechanism, 7- lifting cylinder, 8- iron core pressing power source, 9- mounting frame, 10- plugging mechanism, 11- clamping and transposition mechanism, 1-1- linear module, 1-2- iron core correction fixture, 1-2-1- base, 1-2-2- tensioning clamping claw, 1-2-3- positioning key, 4-1- circular positioning Sleeve, 4-2-elastic element, 4-3-overlapping guide fixture, 4-4-guide cone, 4-5-guide rib, 8-1-servo cylinder, 8-2-connecting rod, 8-3-disc, 9-1-front plate, 9-2-rear plate, 9-3-side plate, 9-4-top plate, 10-1-connecting base, 10-2-connecting slot, 11-1-upper press plate, 11-2-core clamping claw, 11-3-clamping cylinder, 11-4-buffer block. DETAILED DESCRIPTION

[0044] The following is a further detailed description of the technical solutions of the present invention (including preferred technical solutions) by means of the accompanying drawings and by listing some optional embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] The present invention discloses a motor rotor core lamination device, which has the functions of grabbing the core at the material taking position and pressing the core at the lamination position. It should be pointed out that the core and the rotor shaft of the present invention specifically refer to Figure 1 and 2 The rotor shaft of the special iron core shown in the figure has a keyway 12 and a boss 13 on the rotor shaft provided on the inner hole of the iron core. The shapes of the keyway 12 and the boss 13 correspond to each other. The inner hole of the iron core is provided with a keyway 12 extending through the inner hole along the axial direction. The position of the keyway 12 corresponds to the position of the boss 13 on the rotor shaft to achieve the superposition of the iron core and the rotor shaft. Therefore, in order to achieve the attachment Figure 1 and 2 The lamination of the rotor shaft of the special iron core shown in the figure is an indispensable part of the fully automated process when the iron core is rotated at a certain angle to control its spatial position before lamination. The present invention sends the iron core to the grabbing position through the iron core feeding mechanism 1, which is grabbed by the iron core lamination mechanism 2, and is sent to the lamination position by the transverse movement mechanism 3, and then the lamination is completed by the lamination mechanism. The rotor is composed of 8 layers of iron cores in total, and is laminated eight times in total. In order to improve efficiency, due to the large number of lamination times, this equipment is provided with two sets of iron core feeding mechanisms, which are arranged at On the left and right sides of the equipment, the rotor shaft anti-positioning tooling is arranged in the middle of the equipment, and the two sets of stacking mechanisms are installed in the same iron core transverse movement mechanism. When the transverse movement mechanism moves to the left to grab the iron core at position A, the clamping mechanism is at the top of the stacked rotor shaft to carry out the iron core stacking operation. When the transverse movement mechanism moves to the right to grab the iron core at position B, the clamping mechanism at position A is at the top of the stacked rotor shaft to carry out the iron core stacking operation. The stacking mechanism grabs the iron core and operates simultaneously with the stacking of the rotor shaft iron core, thereby improving production efficiency.

[0046] like Figure 3As shown, the motor rotor core lamination equipment disclosed in the present invention includes a rotor shaft positioning tool 4 and a core pressing power source 8 arranged to extend along the Z axis. The core pressing power source 8 is coaxially arranged directly above the rotor shaft positioning tool 4. A transverse movement mechanism 3 capable of displacement along the Y axis is provided between the core pressing power source 8 and the rotor shaft positioning tool 4. Two groups of core lamination mechanisms 2 extending along the Z axis are provided on the moving end of the transverse movement mechanism 3. Each group of core lamination mechanisms 2 includes a mounting frame 9 capable of displacement along the Z axis. One end of each mounting frame 9 is provided with It is equipped with a plug-in mechanism 10 for cooperating with the plug-in iron core pressing power source 8, and a clamping and shifting mechanism 11 for clamping the iron core is provided at the other end. A core feeding mechanism 1 is provided next to the rotor shaft positioning tooling 4, which is symmetrically arranged relative to it and extends along the X-axis. The Y-direction spacing between the two core feeding mechanisms 1 is twice the Y-direction spacing between the two core stacking mechanisms 2. Each core feeding mechanism 1 includes a linear module 1-1 extending along the X-axis and an iron core correction tooling 1-2 connected to the movable end of the linear module 1-1 and capable of rotating around the Z-axis. It can be understood that the stacking mechanism of the present invention is composed of two identical press-fitting slides (including a mounting frame 9, a plug-in mechanism 10 and a clamping and shifting mechanism 11) to realize the process of alternating material picking and stacking; the press-fitting slide has the dual functions of parts grabbing and pressing, and the pressure head part has a two-layer structure, the bottom layer is a grabbing clamp, and the upper layer is a pressing surface designed according to the end face of the product. When picking up the material, the clamp is controlled by the cylinder clamping to clamp the iron core. When stacking, the clamp is opened, and the iron core slides into the rotor shaft through the guide tooling. The pressing surface on the pressure head contacts the iron core and presses it down as a whole to complete the stacking tooling; each press-fitting slide is equipped with a lifting cylinder for lifting and lowering the grabbing iron core. The pressing process is completed using a servo electric cylinder. The two presses The mounting slide uses a common servo electric cylinder to complete the press-fitting action. The electric cylinder piston rod is equipped with a boss, and the upper part of the stacking mechanism is provided with a groove. After moving left and right, the boss of the piston rod can be hung to perform the press-fitting action, so that one servo cylinder corresponds to two press-fitting tables, which reduces one servo cylinder and reduces equipment investment, making the structure of the present invention more compact and used to realize the left and right lateral movement of the iron core stacking mechanism. Two iron core stacking mechanisms are installed on this mechanism; the left and right movement station switching of the two same-type press-fitting slides of the present invention is realized by the lateral movement mechanism, thereby realizing that the two same-type press-fitting slides can be grasped and stacked synchronously by the stacking mechanism, which greatly improves the working efficiency of the present invention.

[0047] like Figure 4-5As shown, preferably, since the placement of the circular iron cores produced in the above sequence is random, and in the stacking station, the iron cores must have a unified keyway angle before they can be placed in the rotor shaft, an iron core correction tool 1-2 is provided on the feeding mechanism to ensure that the iron core angle is unified when the iron core is grabbed. The iron core correction tool 1-2 includes a base 1-2-1, and the base 1-2-1 is provided with a tightening clamp 1-2-2 that can rotate around the Z axis and displace around the Z axis. The outer diameter of the tightening clamp 1-2-2 corresponds to the inner diameter of the iron core, and a positioning key 1-2-3 is fixedly provided on the base 1-2-1. The shape of the positioning key 1-2-3 corresponds to the shape of the keyway on the iron core, and the base 1-2-1 is provided with a sensor for detecting whether the position of the keyway on the iron core corresponds to the position of the positioning key 1-2-3. The iron core produced in the previous sequence is placed on the iron core correction fixture 1-2 by the robot. After the iron core correction fixture 1-2 has a tensioning clamp 1-2-2 to clamp the iron core, the cylinder generates a force to pull the iron core downward. At the same time, the fixture starts to rotate under the drive of the servo motor. When it rotates to the iron core keyway position, the cylinder pulls the iron core into the fixture keyway position. At the same time, a sensor detects that the iron core keyway is accurately aligned and determines that its angle is uniform.

[0048] It can be understood that the tensioning clamp 1-2-2 includes at least one motor for driving its rotation and a cylinder for driving its lifting. The cylinder can drive the tensioning clamp 1-2-2 to lift and lower along the Z axis. The motor drives the cylinder to rotate through a belt drive or a gear drive to realize the rotation of the tensioning clamp 1-2-2. The above is only one embodiment. Any technical solution that can realize the rotation of the tensioning clamp 1-2-2 around the Z axis and the displacement around the Z axis falls within the scope of protection of the present invention.

[0049] Furthermore, the tensioning jaw 1-2-2 of the present invention is disc-shaped, and its diameter corresponds to the inner hole diameter of the iron core.

[0050] Preferably, first, the robot grasps a single iron core and transfers it to the tensioning clamp 1-2-2 for coaxial connection, and then the tensioning clamp 1-2-2 drives the iron core to rotate until the sensor senses that the position of the keyway on the iron core corresponds to the position of the positioning key 1-2-3, and then the tensioning clamp 1-2-2 drives the iron core downward so that the keyway cooperates with the positioning key 1-2-3.

[0051] like Figure 6 and 7 As shown, preferably, a mounting plate 5 is connected to the movable end of the transverse movement mechanism 3, and the mounting plate 5 is provided with two guide rail slider mechanisms 6 arranged at intervals along the Y-axis and extending in the Z-axis and two lifting cylinders 7 arranged at intervals along the Y-axis and extending in the Z-axis. The two guide rail slider mechanisms 6 are located on the outside of the two lifting cylinders 7, and the slider of an adjacent guide rail slider mechanism 6 and the piston rod end of a lifting cylinder 7 are simultaneously connected to a mounting frame 9.

[0052] like Figure 8-9 As shown, preferably, the mounting frame 9 includes two parallel front plates 9-1 and a rear plate 9-2, the front plate 9-1 and the rear plate 9-2 are connected by two side plates 9-3 arranged at intervals along the Y-axis direction, the side plates 9-3 are connected to the piston rod of the lifting cylinder 7, and a top plate 9-4 is provided at the top end of the front plate 9-1 and the rear plate 9-2, a plug-in mechanism 10 is connected to the top plate 9-4, and a clamping and shifting mechanism 11 is connected to the bottom end of the side plate 9-3.

[0053] like Figure 8-10 As shown, preferably, the plug-in mechanism 10 includes a connecting base 10-1, which is a T-shaped or F-shaped structure. The connecting base 10-1 is fixed to the upper end of the top plate 9-4 by bolts or screws. The top of the connecting base 10-1 is provided with a plug-in slot 10-2 extending through along the Y-axis direction, and the projection shape of the plug-in slot 10-2 in the plane perpendicular to the Y-axis direction is T-shaped.

[0054] like Figure 11-12 As shown, preferably, the clamping and shifting mechanism 11 includes an upper pressing plate 11-1 designed according to the end face of the iron core and a pair of iron core clamps 11-2 arranged at intervals along the Y-axis direction below the upper pressing plate 11-1. The two iron core clamps 11-2 are driven closer or farther away by a clamping cylinder 11-3 extending along the Y-axis direction.

[0055] like Figure 11-12 As shown, preferably, two buffer blocks 11 - 4 symmetrically arranged relative to the Y axis are provided on the core clamp 11 - 2 , the angle between the two buffer blocks 11 - 4 is an obtuse angle, and each buffer block 11 - 4 is in line contact with the outer peripheral surface of the core.

[0056] like Figure 10 As shown, preferably, the iron core pressing power source 8 includes a servo cylinder 8-1 extending along the Z-axis and a plug-in rod 8-2 connected to the lifting end of the servo cylinder 8-1. The plug-in rod 8-2 is in the shape of a stepped shaft. The plug-in rod 8-2 includes a connecting rod portion for connecting the servo cylinder 8-1 and a disc portion 8-3 for cooperating with the plug-in slot 10-2 of the plug-in mechanism 10. The projection shape of the disc portion 8-3 in a plane perpendicular to the Y-axis corresponds to the projection shape of the plug-in slot 10-2 in a plane perpendicular to the Y-axis.

[0057] like Figure 13-18As shown, the rotor shaft positioning fixture 4 preferably includes a circular positioning sleeve 4-1 and a stacking guide fixture 4-3. The diameter of the center hole of the circular positioning sleeve 4-1 corresponds to the outer diameter of the rotor shaft. The bottom of the circular positioning sleeve 4-1 is provided with an elastic element 4-2 and a sensor. The inner diameter of the stacking guide fixture 4-3 corresponds to the outer diameter of the rotor shaft end. The end of the stacking guide fixture 4-3 is provided with a guide cone 4-4. The outer circumferential surface of the stacking guide fixture 4-3 is provided with guide ribs 4-5. The shape of the guide ribs 4-5 corresponds to the shape of the keyway on the iron core. The guide ribs 4-5 mate with the bosses 13 on the rotor shaft. The rotor shaft and the fixture of the present invention use a clearance fit. The rotor shaft is manually inserted into the positioning fixture. The elastic element 4-1 is provided at the bottom of the fixture. The inserted fixture undergoes compression deformation under the action of gravity. The deformation is detected by the sensor to confirm that the rotor shaft is correctly placed. After placement, the rotor shaft boss contacts the fixture support to withstand the pressing force generated by the stacking. The stacking guide tooling 4-3 is placed on the top of the rotor shaft. It is a conical guide device with a gradually increasing outer diameter and a boss keyway. The cone ensures the coaxiality between the rotor shaft and the press-fitting shaft. The boss keyway on the tooling can ensure the parallelism of the core stacking surface, thereby ensuring the stacking quality, the core coaxiality and the uniform parallelism of each layer of core, thereby ensuring the consistency of the gap between the rotor and the stator.

[0058] like Figure 19 As shown, the process flow of laminating the rotor cores of the motor using the laminating device of the present invention is as follows:

[0059] S1 rotor shaft positioning tool (4) tool is moved to the middle tool stacking position through the translation slide mechanism

[0060] S2 manually places the rotor shaft, inserts the rotor shaft into the counter-positioning fixture (4), installs the core guide fixture (5), presses the reset button and the start button, and the material is discharged.

[0061] The S3 stacking mechanism (2-A, 2-B) first moves to the corresponding grabbing position A on the left side, and the stacking mechanism A grabs the iron core. Then it moves to the right side through the transverse mechanism. The stacking mechanism A stops just above the rotor shaft and stacks the iron core. At the same time, the stacking mechanism B on the transverse mechanism stops at the B iron core grabbing position to grab the iron core.

[0062] S4 transverse mechanism (3) moves to the left, the stacking mechanism B stops just above the rotor shaft and performs core stacking, and the stacking mechanism A stops at the A core grabbing position and performs grabbing.

[0063] Repeat the above action four times on each side, and the press presses eight times in total.

[0064] S5 lamination is completed, the guide tooling is manually removed, and the completion button is pressed. The tooling moves to the next workstation through the translation slide mechanism, waiting for the subsequent workstation to remove the rotor workpiece.

[0065] The present invention can greatly improve the efficiency of core lamination, and the time consumption is shown in the following table:

[0066]

[0067] As shown in the table above, this laminating equipment can achieve a cycle time of less than 210 seconds, a 55% improvement over conventional equipment. Conventional laminating equipment requires manual labor during production to load and unload the rotor shaft (1.5 kg), eight cores (0.8 x 8 = 6.4 kg), and the rotor assembly (8 kg) off the line, for a total of 16 kg. This new equipment only requires loading and unloading the rotor shaft (1.5 kg) once. This significantly improves output per unit time and reduces labor intensity.

[0068] It is easy for those skilled in the art to understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, combinations, replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A motor rotor core lamination device, characterized by: The invention comprises a rotor shaft positioning tool (4) and an iron core pressing power source (8) arranged along the Z axis, wherein the iron core pressing power source (8) is coaxially arranged directly above the rotor shaft positioning tool (4), a transverse movement mechanism (3) capable of displacement along the Y axis is arranged between the iron core pressing power source (8) and the rotor shaft positioning tool (4), two groups of iron core stacking mechanisms (2) arranged along the Z axis are arranged on the movable end of the transverse movement mechanism (3), each group of iron core stacking mechanisms (2) comprises a mounting frame (9) capable of displacement along the Z axis, one end of each mounting frame (9) is provided with a plug-in mechanism (10) for cooperating with the iron core pressing power source (8), and the other end is provided with a clamping and shifting mechanism (11) for clamping the iron core, an iron core feeding mechanism (1) arranged symmetrically relative to the rotor shaft positioning tool (4) and extending along the X axis is provided next to the rotor shaft positioning tool (4), and the Y-axis distance between the two iron core feeding mechanisms (1) is symmetrical to the iron core pressing power source (8). The distance between the two iron core stacking mechanisms (2) is twice the Y-direction distance between the two iron core stacking mechanisms (2), each iron core feeding mechanism (1) comprises a linear module (1-1) extending in the X-axis direction and an iron core correction fixture (1-2) connected to the movable end of the linear module (1-1) and capable of rotating around the Z-axis; the rotor shaft positioning fixture (4) comprises a circular positioning sleeve (4-1) and a stacking guide fixture (4-3), the diameter of the center hole of the circular positioning sleeve (4-1) being the same as that of the rotor shaft The outer diameter of the circular positioning sleeve (4-1) corresponds to the outer diameter of the end of the rotor shaft, the bottom of the circular positioning sleeve (4-1) is provided with an elastic element (4-2) and a sensor, the inner diameter of the stacking guide fixture (4-3) corresponds to the outer diameter of the end of the rotor shaft, the end of the stacking guide fixture (4-3) is provided with a guide cone (4-4), and the outer peripheral surface of the stacking guide fixture (4-3) is provided with a guide rib (4-5), and the shape of the guide rib (4-5) corresponds to the shape of the keyway on the iron core.

2. The motor rotor core lamination equipment according to claim 1, characterized in that: The iron core correction tool (1-2) comprises a base (1-2-1), the base (1-2-1) is provided with a tensioning clamp (1-2-2) which can rotate around the Z axis and can be displaced around the Z axis, the outer diameter of the tensioning clamp (1-2-2) corresponds to the inner diameter of the iron core, the base (1-2-1) is fixedly provided with a positioning key (1-2-3), the shape of the positioning key (1-2-3) corresponds to the shape of the keyway on the iron core, and the base (1-2-1) is provided with a sensor for detecting whether the position of the keyway on the iron core corresponds to the position of the positioning key (1-2-3).

3. The motor rotor core lamination equipment according to claim 2, characterized in that: The manipulator grabs a single iron core and transfers it to the tensioning clamp (1-2-2) for coaxial connection. The tensioning clamp (1-2-2) then drives the iron core to rotate until the sensor senses that the position of the keyway on the iron core corresponds to the position of the positioning key (1-2-3). The tensioning clamp (1-2-2) then drives the iron core downward so that the keyway and the positioning key (1-2-3) are matched.

4. The motor rotor core lamination equipment according to claim 1, characterized in that: A mounting plate (5) is connected to the movable end of the transverse movement mechanism (3). The mounting plate (5) is provided with two guide rail slider mechanisms (6) spaced apart along the Y-axis and extending in the Z-axis, and two lifting cylinders (7) spaced apart along the Y-axis and extending in the Z-axis. The two guide rail slider mechanisms (6) are located outside the two lifting cylinders (7). The sliders of adjacent guide rail slider mechanisms (6) and the piston rod ends of adjacent lifting cylinders (7) are simultaneously connected to a mounting bracket (9).

5. The motor rotor core lamination equipment according to claim 1, characterized in that: The mounting frame (9) comprises two parallel front plates (9-1) and a rear plate (9-2), the front plate (9-1) and the rear plate (9-2) being connected via two side plates (9-3) spaced apart along the Y-axis direction, the side plates (9-3) being connected to the piston rod of the lifting cylinder (7), the top ends of the front plate (9-1) and the rear plate (9-2) being provided with a top plate (9-4), the top plate (9-4) being connected to a plug-in mechanism (10), and the bottom ends of the side plates (9-3) being connected to a clamping and shifting mechanism (11).

6. The motor rotor core lamination equipment according to claim 1, characterized in that: The plug-in mechanism (10) comprises a connecting base (10-1), the top end of the connecting base (10-1) is provided with a plug-in slot (10-2) extending through along the Y-axis direction, and the projection shape of the plug-in slot (10-2) in a plane perpendicular to the Y-axis direction is T-shaped.

7. The motor rotor core lamination equipment according to claim 1, characterized in that: The clamping and transposition mechanism (11) comprises an upper pressing plate (11-1) designed according to the end face profile of the iron core and a pair of iron core clamping claws (11-2) arranged at intervals along the Y-axis below the upper pressing plate (11-1). The two iron core clamping claws (11-2) are driven to move closer or farther apart by a clamping cylinder (11-3) extending along the Y-axis.

8. The motor rotor core lamination equipment according to claim 7, characterized in that: The iron core clamp (11-2) is provided with two buffer blocks (11-4) symmetrically arranged relative to the Y axis, the angle between the two buffer blocks (11-4) is an obtuse angle, and each buffer block (11-4) is in line contact with the outer peripheral surface of the iron core.

9. The motor rotor core lamination equipment according to claim 1, characterized in that: The iron core press-fitting power source (8) comprises a servo cylinder (8-1) extending along the Z-axis and a plug-in rod (8-2) connected to the lifting end of the servo cylinder (8-1); the plug-in rod (8-2) is in the shape of a stepped shaft; the plug-in rod (8-2) comprises a connecting rod portion for connecting to the servo cylinder (8-1) and a disc portion (8-3) for cooperating with a plug-in slot (10-2) of a plug-in mechanism (10); the projection shape of the disc portion (8-3) in a plane perpendicular to the Y-axis corresponds to the projection shape of the plug-in slot (10-2) in a plane perpendicular to the Y-axis.

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