A vertical press device and method for rotor core and commutator

Abstract

The present application relates to a vertical pressing device and method for rotor core and commutator, the device comprising four rotor core positioning tools for positioning the rotor core and a rotor core clamping and feeding assembly for clamping the rotor core and driving the rotor core to feed between the positioning tools; the device further comprises a finding component corresponding to the four rotor core positioning tools respectively for angular positioning of the rotor core, a pressing assembly for vertical pressing of the commutator and the rotor core, a height detection component and a defective product recycling component; the device further comprises a commutator feeding assembly for feeding the commutator to the pressing assembly, a commutator distributing assembly for supplying the commutator to the commutator feeding assembly and identifying the angle of the commutator, and a vibration disc and a straight vibration assembly for supplying the commutator to the commutator distributing assembly; the device of the present application can automatically perform vertical pressing operation of the commutator and the rotor core, has high automation degree and can guarantee the processing precision of the product.

Description

Technical Field

[0001] This invention relates to the field of motor processing technology, and more specifically, to a vertical press-fitting device and method for rotor core and commutator. Background Technology

[0002] In motor manufacturing, the process involves loading the commutator and pressing it onto the rotor core. Conventionally, this is done manually, loading the commutator, identifying the angle between the commutator and the rotor core, aligning the angles, and performing rough pressing before placing it into a pressing machine. While this method can produce motors, the processing efficiency is very low, the consistency is poor, and the labor intensity for workers is high. Currently, most fully automated rotor core and commutator pressing equipment on the market uses a horizontal pressing method. The disadvantage of this method is that the weight of the rotor core and commutator makes it difficult to achieve high overall pressing accuracy. For motors with high precision requirements, this method cannot guarantee a high yield. Therefore, a vertical pressing device and method for rotor core and commutator is needed to achieve automated production while meeting pressing accuracy requirements. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a vertical pressing device for rotor core and commutator, and a vertical pressing method for rotor core and commutator, in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A vertical pressing device for rotor cores and commutators is constructed, comprising four rotor core positioning fixtures for positioning the rotor cores and a rotor core clamping and feeding assembly for clamping the rotor cores and feeding them between the positioning fixtures; the device further includes a positioning assembly for angular positioning of the rotor cores, corresponding to the four rotor core positioning fixtures, a pressing assembly for vertical pressing of the commutator and rotor cores, a height detection assembly, and a defective product recovery assembly; the device also includes a commutator feeding assembly for feeding the commutator to the pressing assembly, a commutator distribution assembly for supplying commutators to the commutator feeding assembly and identifying the commutator angle, and a vibratory feeder and a direct vibration assembly for supplying commutators to the commutator distribution assembly.

[0006] The rotor core and commutator vertical pressing device of the present invention includes a commutator feeding assembly comprising a receiving module for receiving commutator feed, the receiving module having a receiving channel, the inner wall of the receiving channel having a positioning groove for positioning the commutator; a holding block being movably disposed above the outlet of the receiving channel; the commutator angle recognition feeding assembly further includes a first lifting unit for driving the holding block to rise and fall, a blocking unit for blocking commutators reaching the outlet of the receiving channel, a material sensor for detecting whether the commutator has reached the outlet of the receiving channel, and a distance sensor for detecting any groove on the surface of the commutator reaching the outlet of the receiving channel.

[0007] The vertical pressing device for rotor core and commutator of the present invention includes a receiving module comprising an upper receiving block and a lower receiving block arranged vertically. The upper surface of the lower receiving block has a slot, and the slot and the upper receiving block together form a receiving channel. The upper receiving block has a first protrusion extending into the receiving channel. The bottom of the slot has a second protrusion directly opposite the first protrusion. Both the first and second protrusions have V-grooves, and the bottom of the V-grooves has a strip-shaped groove. The V-shaped groove and the strip groove constitute the positioning groove; it also includes a mounting frame for mounting and fixing the receiving module, and the first lifting unit is mounted on the mounting frame; the mounting frame is provided with an L-shaped bracket for mounting the distance sensor, and the upper receiving block and the lower receiving block are both located inside the L-shape of the bracket; the material blocking unit includes a longitudinal material blocking plate and a material blocking cylinder for driving the material blocking plate; the end of the lower receiving block is provided with a guide block for guiding the lifting movement of the material blocking plate, and the guide block is provided with a guide groove.

[0008] The rotor core and commutator vertical pressing device of the present invention includes a pressing assembly comprising a pressing bracket, a pressing plate and a press for lifting the pressing plate on the pressing bracket, and an adsorption head for adsorbing the commutator on the lower surface of the pressing plate; the commutator feeding assembly includes a feeding head for longitudinally moving the commutator to the adsorption head and a feeding lateral movement unit for moving the feeding head laterally; and a limiting fork for stopping the lower end of the commutator on the adsorption head and a lateral movement unit for moving the limiting fork laterally on the pressing bracket.

[0009] The vertical pressing device for rotor core and commutator of the present invention includes a feeding head comprising a feeding rod, the upper end of which is provided with a picking post that is interference-fitted with the inner hole of the commutator; the feeding head further includes a positioning rod arranged parallel to the feeding rod, the upper end of which is provided with a positioning fork for positioning the commutator; the feeding head further includes a feeding seat, which is connected to the movable end of the feeding transverse movement unit; the feeding seat is provided with a feeding block and a lifting cylinder for driving the feeding block to rise and fall; the feeding block is provided with the feeding rod, the positioning rod, and a first rotating unit for driving the feeding rod to rotate; the feeding block is provided with a tilting cylinder for driving the lifting cylinder to tilt longitudinally.

[0010] The vertical pressing device for rotor core and commutator of the present invention includes a positioning assembly comprising a clamping unit for clamping the upper shaft of the rotor core, a second rotating unit for rotating the clamping unit, and a second lifting unit for lifting the second rotating unit. It also includes a tapered pin acting on the outer surface of the rotor core clamped by the clamping unit and a mounting base for mounting the tapered pin. A connecting rod is provided on the mounting base, and the middle part of the connecting rod is rotatably connected to the mounting base. The tapered pin is provided at one end of one side surface of the connecting rod, and an elastic element is provided at the other end. A position sensor is provided on the mounting base to detect the position of the end of the connecting rod with the elastic element.

[0011] The vertical press-fitting device for rotor core and commutator of the present invention includes a mounting base comprising a mounting plate. One side surface of the mounting plate is provided with a connecting rod positioning groove for positioning the connecting rod, and the other side surface of the mounting plate is provided with a movable slot communicating with the connecting rod positioning groove for exposing the tapered pin. The connecting rod is arranged longitudinally. Both the connecting rod positioning groove and the movable slot communicate with the lower end face of the mounting plate. One side surface of the connecting rod is provided with a step that mates with the movable slot, and the tapered pin is disposed on the surface of the step. A pin is inserted through the connecting rod. A rotating shaft is fixed, and the inner wall of the positioning groove of the connecting rod is provided with a mounting hole that mates with the rotating shaft; the rotating shaft is directly opposite the movable slot; the mounting base also includes a connecting rod, on which a mounting block is connected, and a mounting plate is disposed on the mounting block; the position sensor is disposed on the mounting block; the mounting block is provided with a buffer head acting on the side surface of the end of the connecting rod where the elastic element is disposed, and a buffer head mounting bracket for mounting the buffer head; the rotor core angle finding mechanism also includes a mounting bracket for mounting the second lifting unit and the mounting base.

[0012] The vertical pressing device for rotor core and commutator of the present invention includes a positioning fixture comprising a positioning bracket and a fixture plate for longitudinally loading the rotor core. A support plate is mounted on the positioning bracket, and the fixture plate is installed on the upper surface of the support plate. The positioning bracket is provided with a longitudinal positioning rod located below the support plate and a third lifting unit for driving the positioning rod to rise and fall. The positioning rod positions the rotor core by engaging with a groove on the outer surface of the rotor core. A first through hole is provided on the support plate for the positioning rod to pass through, and a second through hole is provided on the fixture plate for the positioning rod to pass through.

[0013] The vertical pressing device for rotor core and commutator of the present invention includes a height detection component comprising a mounting base and a fourth lifting unit for driving the mounting base to move longitudinally. An upper mounting plate and a lower mounting plate are arranged vertically on the mounting base, with a gap between them. A displacement sensor and a sensor fixture for fixing the displacement sensor are provided on the upper mounting plate. A detection sleeve is fixed on the lower mounting plate, and a detection shaft slides through the detection sleeve. The detection end of the displacement sensor is directly opposite the detection shaft. The lower end of the detection shaft extends out of the detection sleeve and has a positioning hole at its end that mates with the upper shaft of the rotor core. A spring is fitted onto the lower end of the detection shaft, and a step is formed to limit the lower end of the spring. The upper end of the spring abuts against or connects to the lower end of the detection sleeve. A limiting member is provided at the upper end of the detection shaft to prevent it from dislodging from the detection sleeve.

[0014] A vertical press-fitting method for rotor core and commutator, using the vertical press-fitting device for rotor core and commutator as described above, is implemented as follows:

[0015] The rotor core is fed to the rotor core positioning fixture corresponding to the positioning component. The rotor core is positioned at an angle by the positioning component. The positioned rotor core is then transferred to the rotor core positioning fixture corresponding to the pressing component by the rotor core clamping and feeding component.

[0016] The commutator is fed by a vibratory feeder and conveyed to the commutator distribution assembly via a linear vibration component for distribution and angle identification. The commutator feeding assembly takes material from the commutator distribution assembly and feeds it to the pressing assembly. The pressing assembly performs longitudinal pressing of the commutator and rotor core.

[0017] The press-fitted rotor core is transferred to the rotor core positioning fixture corresponding to the height detection component by the rotor core clamping and feeding assembly for height detection;

[0018] After height detection, the rotor core is transferred to the rotor core positioning fixture corresponding to the defective product recycling component via the rotor core clamping and feeding assembly, thus transferring the defective products.

[0019] The beneficial effects of this invention are as follows: the rotor core is fed onto the rotor core positioning fixture corresponding to the positioning component; the positioning component positions the rotor core at an angle; the positioned rotor core is then transferred by the rotor core clamping and feeding component to the rotor core positioning fixture corresponding to the pressing component; the commutator is fed by a vibratory feeder and conveyed by a linear vibration component to the commutator distribution component for distribution and angle identification; the commutator feeding component takes material from the commutator distribution component and feeds it to the pressing component; the pressing component performs commutation. The device involves longitudinally pressing the rotor core; transferring the pressed rotor core to a rotor core positioning fixture corresponding to the height detection component via a rotor core clamping and feeding assembly for height detection; transferring the height-detected rotor core to a rotor core positioning fixture corresponding to the defective product recycling assembly via the rotor core clamping and feeding assembly for defective product removal; the device described in this application can automatically perform vertical pressing operations on the commutator and rotor core, achieving a high degree of automation and ensuring product processing accuracy. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0021] Figure 1 This is a top view of the vertical pressing device for rotor core and commutator according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the vertical pressing device for rotor core and commutator according to a preferred embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the commutator material distribution assembly of the vertical pressing device for rotor core and commutator according to a preferred embodiment of the present invention.

[0024] Figure 4 Yes, yes Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a schematic diagram of another perspective of the commutator material distribution assembly of the vertical pressing device for rotor core and commutator of the preferred embodiment of the present invention.

[0026] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0027] Figure 7 This is a schematic diagram of the pressing assembly structure of the vertical pressing device for rotor core and commutator according to a preferred embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the rotor core and commutator vertical pressing device pressing assembly from another perspective, representing a preferred embodiment of the present invention.

[0029] Figure 9 yes Figure 8 Enlarged view of point A in the middle;

[0030] Figure 10 This is a schematic diagram of the rotor core positioning fixture structure of the vertical pressing device for rotor core and commutator of the present invention, which is a preferred embodiment of the present invention.

[0031] Figure 11 This is a cross-sectional view of the rotor core positioning fixture of the vertical pressing device for rotor core and commutator of the present invention, which is a preferred embodiment of the present invention.

[0032] Figure 12 This is a schematic diagram of the height detection component of the vertical pressing device for rotor core and commutator according to a preferred embodiment of the present invention.

[0033] Figure 13 This is a partial cross-sectional view of the height detection component of the vertical pressing device for rotor core and commutator according to a preferred embodiment of the present invention. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0035] The preferred embodiment of the rotor core and commutator vertical pressing device of the present invention, such as... Figure 1 As shown, see also Figures 2-13 The device includes four rotor core positioning fixtures 6 for positioning the rotor core and a rotor core clamping and feeding assembly 7 for clamping the rotor core and feeding the rotor core between the positioning fixtures 6; the device also includes a positioning assembly 4 for angular positioning of the rotor core, which is respectively set with the four rotor core positioning fixtures 6; a pressing assembly 5 for vertical pressing of the commutator and rotor core; a height detection assembly 8; and a defective product recycling assembly 9; the device also includes a commutator feeding assembly 51 for feeding the commutator to the pressing assembly; a commutator distribution assembly 1 for supplying commutators to the commutator feeding assembly 51 and identifying the commutator angle; and a vibratory plate 2 and a linear vibration assembly 3 for supplying commutators to the commutator distribution assembly.

[0036] The rotor core is fed onto the rotor core positioning fixture 6 corresponding to the positioning component 4. The positioning component 4 positions the rotor core at an angle. The positioned rotor core is then transferred to the rotor core positioning fixture corresponding to the pressing component 5 via the rotor core clamping and feeding component 7. The commutator is fed by the vibratory feeder 2 and conveyed to the commutator distribution component 1 via the linear vibration component 3 for distribution and angle identification. The commutator feeding component 51 takes material from the commutator distribution component 1 and feeds it to the pressing component 5. The pressing component 5 performs longitudinal pressing of the commutator and the rotor core. The pressed rotor core is then transferred to the rotor core positioning fixture 6 corresponding to the height detection component 8 via the rotor core clamping and feeding component 7 for height detection. The height-detected rotor core is then transferred to the rotor core positioning fixture corresponding to the defective product recycling component 9 via the rotor core clamping and feeding component 7 for defective product relocation.

[0037] The device of this application can automatically perform vertical pressing operations of commutators and rotor cores, with a high degree of automation and can ensure product processing accuracy.

[0038] The rotor core clamping and feeding assembly 7 can be formed by combining a clamping cylinder, a lifting cylinder and a transverse transmission track unit. Of course, other existing clamping and transmission structures can also be used, and there is no limitation on this.

[0039] Preferably, the commutator feeding assembly 1 includes a receiving module 10 for receiving commutator feed, the receiving module 10 is provided with a receiving channel 100, and the inner wall of the receiving channel 100 is provided with a positioning groove 101 for positioning the commutator; a holding block 11 is movably disposed above the outlet of the receiving channel 100; the commutator angle recognition feeding assembly also includes a first lifting unit 12 for driving the holding block to rise and fall, a blocking unit 13 for blocking the commutator that reaches the outlet of the receiving channel 100, a material sensor 14 for detecting whether the commutator has reached the outlet of the receiving channel, and a distance sensor 15 for detecting any groove on the surface of the commutator that has reached the outlet of the receiving channel;

[0040] When the commutator is fed into the receiving channel 100, the positioning groove 101 limits the angle of entry of the commutator. When the commutator in the receiving channel 100 is pushed to the outlet of the receiving channel 100 by the commutator 2 that enters later, it is stopped by the blocking unit 13. The first lifting unit 12 drives the pressing block 11 to move down to press the commutator at the outlet (to prevent it from shaking before it is taken away). The material sensor 14 senses the material (the sensing signal is used as the trigger signal for the subsequent material picking unit such as the robot at the work station). At the same time, the distance sensor 15 detects any groove on the surface of the commutator to determine whether the angle is wrong. The material sorting and angle recognition operations can be completed. The structure is simple and the cost is low.

[0041] The commutator can be fed into the receiving channel 100 by a combination of a vibratory feeder and a direct vibratory feeder, or by other existing designs. This part belongs to the prior art and will not be described in detail here.

[0042] Preferably, the receiving module 10 includes an upper receiving block 102 and a lower receiving block 103 distributed vertically. The upper surface of the lower receiving block 103 is provided with a slot 1030. The slot 1030 and the upper receiving block enclose a receiving channel 100. The structure is simple and the assembly and processing are very convenient.

[0043] Preferably, the upper receiving block 102 is provided with a first protrusion 1020 extending into the receiving channel, and the inner bottom of the slot 1030 is provided with a second protrusion 1031 directly opposite to the first protrusion 1020. Both the first protrusion 1020 and the second protrusion 1031 are provided with V-shaped grooves 1021, and the bottom of the V-shaped grooves 1021 is provided with strip grooves 1022. The V-shaped grooves 1021 and the strip grooves 1022 constitute the positioning groove 101. During processing, the upper receiving block and the lower receiving block are processed separately, and then the two are assembled to complete the forming of the receiving channel and the positioning groove. The structural design is very ingenious and can effectively reduce the cost of processing, assembly and debugging.

[0044] Preferably, the commutator angle recognition and material distribution component also includes a mounting frame 16 for mounting and fixing the material receiving module, and a first lifting unit 12 on the mounting frame 16; the first lifting unit 12 can be a cylinder, a linear motor, an electric push rod, a lead screw combined with a motor, etc., and there is no limitation on this.

[0045] Preferably, the mounting bracket 16 is provided with an L-shaped bracket 160 for mounting the distance sensor 15, and the upper receiving block 102 and the lower receiving block 103 are both located inside the L-shape of the bracket 160; the structure is reasonable and compact, with high space utilization. The bracket 160 is used to mount the distance sensor 15 and also serves to semi-enclose the receiving block 102 and the lower receiving block 103, providing protection.

[0046] Preferably, the material blocking unit 13 includes a longitudinal material blocking plate 130 and a material blocking cylinder 131 for driving the material blocking plate; the end of the lower material block 103 is provided with a guide block 132 for guiding the lifting and lowering movement of the material blocking plate 130, and a guide groove 1320 is provided on the guide block 132; the structure is simple, the layout is relatively reasonable, and the material blocking reliability is good.

[0047] Preferably, the mounting bracket 16 is provided with a mounting block 161 for mounting the material blocking cylinder. Other existing mounting methods can also be used, and there is no limitation on this.

[0048] Preferably, the material sensor 14 is an infrared beam sensor, but other existing sensor methods can also be used, and there is no limitation on this.

[0049] Preferably, the pressing assembly 5 includes a pressing bracket 50, on which a pressing plate 52 and a press 53 for driving the pressing plate to rise and fall are provided; the lower surface of the pressing plate 52 is provided with an adsorption head 54 of the adsorption commutator; the commutator feeding assembly 51 includes a feeding head 510 for longitudinally moving the commutator to the adsorption head and a feeding transverse moving unit 511 for driving the feeding head 510 to transversely move; the pressing bracket 50 is provided with a limiting fork 500 for stopping the lower end of the commutator on the adsorption head 54 and a transverse moving unit 501 for driving the limiting fork 500 to transversely move;

[0050] After the feeding transverse unit 511 delivers the feed head 510 with the commutator installed directly below the adsorption head 54, the feed head 510 moves upward to deliver the commutator onto the adsorption head 54. The adsorption head 54 adsorbs the commutator 55, and then the limit fork 500 extends laterally to stop the lower end of the commutator 55. Then the feed head 510 moves downward to reset, leaving the commutator 55 on the adsorption head 54. After that, the limit fork resets. The adsorption head 54 with the commutator 55 can directly perform the pressing action under the drive of the press, which simplifies the process and can effectively improve the pressing efficiency.

[0051] Preferably, the feeding head 510 includes a feeding rod 5100, the upper end of which is provided with a picking post that is interference-fitted with the inner hole of the commutator. With this structure, when picking up the commutator, the picking post is directly inserted into the inner hole of the commutator, and the commutator is picked up by relying on the interference fit. In this way, the commutator, which has been positioned in the previous steps, will not loosen during the feeding process, and the picking is also extremely simple and efficient. With the subsequent limiting fork 500 structure, the commutator is directly pulled off the picking post by the limiting fork 500, thus completing the feeding.

[0052] Preferably, the feeding head 510 also includes a positioning rod 5101 arranged side by side with the feeding rod 5100 (with a gap, which is not shown in the figure due to the perspective). The upper end of the positioning rod is provided with a positioning fork 5102 for positioning the commutator. The positioning fork 5102 is used to further position the commutator to prevent the commutator angle from changing.

[0053] Preferably, the feeding head 510 further includes a feeding seat 5103, which is connected to the movable end of the feeding transverse unit 511; the feeding seat 5103 is provided with a feeding block 5104 and a lifting cylinder 5105 for driving the feeding block 5104 to rise and fall; the feeding block 5104 is provided with a feeding rod 5100, a positioning rod 5101, and a first rotating unit 5107 for driving the feeding rod to rotate; the structure is reasonable and compact, and the lifting cylinder 5105 can effectively drive the feeding rod to rise and fall for feeding. The purpose of the first rotating unit 5107 is to address the issue that when the commutator is positioned by the positioning fork 5102, there will be a certain gap (between the claw and the inner wall of the fork), resulting in low positioning accuracy. In this case, the first rotating unit 5107 (which can be a motor with a synchronous belt structure or other existing rotating components) drives the feeding rod to rotate at a small angle, causing the commutator on the feeding rod 5100 to be aligned with one side of the positioning fork 5102, thus ensuring positioning accuracy.

[0054] Preferably, the feeding head 510 also includes a tilting cylinder 5106 that drives the lifting cylinder 5105 to tilt longitudinally; the tilting cylinder 5106 is designed to adjust the direction of the feeding rod 5100 to the horizontal when docking with the feeding component of the front-end horizontal feeding reversing device 55.

[0055] Preferably, the press-fitting bracket 50 includes a base plate 502, multiple guide columns 503, and a top plate 504; the two ends of the guide columns 503 are respectively connected to the base plate 502 and the top plate 504; guide sleeves 505 are sleeved on the guide columns 503, and multiple guide sleeves 505 are fixedly connected to the press-fitting plate 52; the press 53 is set on the top plate 504; the structure is simple and has good stability.

[0056] Preferably, the limiting fork 500 and the transverse unit 501 are both disposed on the lower surface of the pressure plate 52 and are both located behind the adsorption head 54; the lower surface of the pressure plate 52 is provided with an infrared through-beam sensor 520 for detecting whether there is a commutator on the adsorption head 54 and a sensor mounting plate 521; the structure is simple and the operation is reliable.

[0057] Preferably, the positioning assembly 4 includes a clamping unit 40 for clamping the upper shaft of the rotor core, a second rotating unit 41 for rotating the clamping unit, and a second lifting unit 42 for lifting the second rotating unit. It also includes a tapered pin 43 acting on the outer surface of the rotor core clamped by the clamping unit and a mounting base 44 for mounting the tapered pin. A connecting rod 45 is provided on the mounting base 44, with its middle portion rotatably connected to the mounting base 44. A tapered pin 43 is provided at one end of one side surface of the connecting rod 45, and an elastic element 46 (such as a spring) is provided at the other end. A position sensor 47 is provided on the mounting base 44 to detect the position of the end of the connecting rod 45 where the elastic element is located.

[0058] During testing, the second lifting unit 42 drives the clamping unit 40 to descend, clamping the rotor core. Then, the second lifting unit 42 drives the clamping unit 40 to reset. At this time, the conical needle 43 presses against the outer surface of the rotor core and is held by the elastic element 46 with a certain pressure. The position sensor 47 cannot sense the upper end of the connecting rod 45 (the end with the elastic element). Then, the second rotating unit 41 drives the clamping unit 40 to rotate, causing the rotor core to rotate. When the conical needle enters the groove on the outer surface of the rotor core, the position sensor senses the upper end of the connecting rod (the end with the elastic element), thus completing the rotor core positioning action. At this time, the second lifting unit 42 drives the clamping unit 40 to descend and put the positioned rotor core back to the material picking position. The overall structure is simple, low in cost, and has high positioning efficiency.

[0059] It should be noted that the clamping unit 40, the second rotating unit 41 and the second lifting unit 42 can use existing components, and there is no limitation on them. The solution obtained by simple transformation based on this principle also falls within the scope of protection of this application.

[0060] Preferably, the mounting base 44 includes a mounting plate 440. One side surface of the mounting plate 440 is provided with a connecting rod positioning groove 4400 for positioning the connecting rod, and the other side surface of the mounting plate 440 is provided with a movable slot 4401 that communicates with the connecting rod positioning groove 4400 and allows the conical needle to protrude. The connecting rod 45 is arranged longitudinally, and both the connecting rod positioning groove 4400 and the movable slot 4401 communicate with the lower end face of the mounting plate 440. One side surface of the connecting rod 45 is provided with a step 450 that cooperates with the movable slot, and the conical needle 43 is disposed on the surface of the step 450. The structure is reasonable and compact. The connecting rod positioning groove 4400 can ensure the rotational stability of the connecting rod 45, and the movable slot 4401 facilitates the movement of the end of the connecting rod where the conical needle is disposed.

[0061] Preferably, a rotating shaft 451 is fixedly mounted on the connecting rod 45, and the inner wall of the connecting rod positioning groove 4400 is provided with a mounting hole 4402 that mates with the rotating shaft; the rotating shaft 451 is positioned opposite to the movable slot 4401; the structure is simple, easy to assemble, and low in cost.

[0062] Preferably, the mounting base 44 further includes a connecting rod 441, on which a mounting block 442 is connected, and a mounting plate 440 is disposed on the mounting block 442; a position sensor 47 is disposed on the mounting block 442; a buffer head 4420 acting on the side surface of the connecting rod 45 at one end with an elastic element and a buffer head mounting bracket 4421 for mounting the buffer head are disposed on the mounting block 442; the structure is reasonable and compact, with small size and small space occupation.

[0063] Preferably, the rotor core angle positioning mechanism also includes a mounting bracket 48 for mounting the second lifting unit 42 and the mounting base 44. The entire mechanism is integrated as a whole, which facilitates cooperation with other modules on the processing production line.

[0064] Preferably, the positioning fixture includes a positioning bracket 60 and a fixture plate 61 for longitudinally loading the rotor core. The positioning bracket 60 is provided with a support plate 600, and the fixture plate 61 is installed on the upper surface of the support plate 600. The positioning bracket 60 is provided with a longitudinal positioning rod 62 located below the support plate 600 and a third lifting unit 63 for driving the positioning rod to rise and fall. The positioning rod 62 positions the rotor core by cooperating with the groove on the outer surface of the rotor core. The support plate 600 is provided with a first through hole 6000 for the positioning rod 62 to pass through, and the fixture plate 61 is provided with a second through hole 610 for the positioning rod 62 to pass through.

[0065] Using the positioning fixture of this application, when the rotor core has not been positioned, the third lifting unit 63 drives the positioning rod 62 to exit the second through hole 610. When the rotor core is positioned and put back on the positioning fixture, the third lifting unit 63 drives the positioning rod 62 to extend out of the second through hole 610 and insert into the groove on the outer surface of the rotor core to position the rotor core. This fixture can well adapt to the two states of the rotor core before and after positioning. The overall structure is simple and the cost is low.

[0066] Preferably, the tooling plate 61 is provided with a positioning hole 611 for positioning the lower end shaft of the rotor core, and the depth of the positioning hole 611 is less than the length of the lower end shaft 64 of the rotor core; the support plate 600 is provided with a detection groove 6001, the lower end shaft 64 of the rotor core passes through the detection groove 6001, and a material sensor 6002 for detecting the lower end shaft of the rotor core is provided in the detection groove 6001;

[0067] With this structural design, the material sensor 6002 detects the components that extend into the detection groove 6001 from the lower shaft 64 to determine whether a rotor core is positioned on the current tooling plate 61. The detection reliability is good and it is not easily affected by external interference.

[0068] Furthermore, the second through hole 610 can be connected to the detection slot 6001, and the lifting trajectory of the positioning rod 62 intersects with the sensing line of the material sensor 6002. With this design, it is possible to determine whether the position of the positioning rod 62 is within the second through hole 610 without placing the rotor core. If so, the third lifting unit 63 needs to be controlled to drive the positioning rod 62 downward and out of the detection slot 6001 to avoid interfering with the placement of the rotor core that has not yet been positioned.

[0069] Preferably, the material sensor 6002 is an infrared through-beam sensor, but it can be replaced with other sensor forms or structures as needed.

[0070] Preferably, the positioning bracket 60 is provided with a sliding seat 65 for fixing the positioning rod 62 and a longitudinal slide rail 66 for longitudinally slidingly connecting the sliding seat. The lower end of the sliding seat 65 is fixedly connected to the third lifting unit 63. The positioning bracket 60 is provided with a mounting plate 67 for mounting the third lifting unit. The movable end of the third lifting unit 63 is connected to the sliding seat 65 through a coupling 68. The structure is simple, and assembly and debugging are very convenient. The cooperation between the sliding seat 65 and the longitudinal slide rail 66 can well ensure the accuracy and stability of the lifting movement of the positioning rod 62.

[0071] Preferably, the positioning bracket 60 includes two upright plates 601, the upper ends of which are connected by a support plate 600. The area between the two upright plates 601 is the installation area for the sliding seat 65, the longitudinal slide rail 66 and the third lifting unit 63. The structure is simple and the assembly and debugging are very convenient.

[0072] Preferably, a limit block 650 is fixed on one side surface of the sliding seat 65, and an upper buffer limit head 651 for limiting the upward travel of the limit block and a lower buffer limit head 652 for limiting the downward travel of the limit block are provided on the positioning bracket 60; this facilitates buffering and limiting of the up and down movement of the sliding seat 65, and extends the service life of the equipment.

[0073] Preferably, the height detection component 8 includes a mounting base 80 and a fourth lifting unit 81 that drives the mounting base 80 to move longitudinally. An upper mounting plate 82 and a lower mounting plate 83 are arranged vertically on the mounting base 80, with a gap between them. A displacement sensor 84 and a sensor fixture 85 for fixing the displacement sensor are provided on the upper mounting plate 82. A detection sleeve 86 is fixed on the lower mounting plate 83. A detection shaft 87 is slidably inserted inside the detection sleeve. The detection end 840 of the displacement sensor 84 is directly opposite to the detection shaft 87. The lower end of the detection shaft 87 extends out of the detection sleeve 86 and has a positioning hole 870 at its end that matches the upper shaft of the rotor core. A spring 871 is sleeved on the lower end of the detection shaft 87 and a step 872 is formed to limit the lower end of the spring 871. The upper end of the spring 871 abuts against or connects to the lower end of the detection sleeve 86. A limiting member 873 is provided on the upper end of the detection shaft 87 to prevent it from falling out of the detection sleeve 86.

[0074] During testing, the fourth lifting unit 81 drives the mounting base 80 to move downward, and the upper shaft of the rotor core enters the positioning hole 870. The mounting base 80 continues to move downward, and the lower end of the detection shaft 87 contacts and presses the commutator. The spring 871 is compressed and contracts, and the detection shaft 87 moves upward relative to the detection bushing 86. The displacement sensor 84 detects the gap at the upper end of the detection shaft 87. Using this method, rotor cores with poor pressing (gap not meeting the standard) can be detected very quickly and accurately. The overall structure is simple and the cost is low.

[0075] Preferably, the sensor fixture 85 includes a protective shell 850 that protects the body 841 of the displacement sensor 84 and a clamping part 851 that clamps the connecting end 842 of the displacement sensor 84; the protective shell 850 is fixed to the upper surface of the upper mounting plate 82, and the clamping part 851 is formed on the upper mounting plate 82; preferably, the sensor fixture 85 includes a protective sleeve 852 that is sleeved on the detection end 840 of the displacement sensor 84, and the protective sleeve 852 is disposed on the lower surface of the upper mounting plate 82; the assembly is simple and convenient, and it can provide all-round protection for the single displacement sensor, which can reduce external interference to the detection.

[0076] Preferably, the clamping part 851 includes two clamping arms, one end of which is fixedly connected to the upper mounting plate, and the other end is locked with screws; each of the two clamping arms has a clamping groove on its opposite side surface, and the two clamping grooves cooperate to clamp the connection end of the displacement sensor; with this structure, the displacement sensor can be clamped and installed better; of course, it is understood that it can also be replaced by other existing installation structures, and the solution obtained by simple replacement based on this structural principle also falls within the protection scope of this application.

[0077] Preferably, the mounting base 80 includes an L-shaped base body 800, which is arranged laterally and the upper and lower ends of the longitudinal side of the L-shape are respectively connected to the upper mounting plate 82 and the lower mounting plate 83; the lateral side of the L-shape of the base body 800 is provided with a connecting part 801 for connecting the fourth lifting unit 81; the structure is simple, easy to assemble, and has good strength and stability.

[0078] Preferably, the fourth lifting unit 81 includes a longitudinally arranged drive cylinder 810. The movable end of the drive cylinder 810 is covered with a protective cover 811. The protective cover 811 is provided with an opening groove 812 for the connecting part to extend into. One end of the connecting part 801 extending into the protective cover 811 is fixedly connected to the movable end of the drive cylinder 810. Preferably, the protective cover 811 is provided with a longitudinal slide rail that slidably connects to the connecting part 801; the driving stability is good and it can resist external interference well.

[0079] Preferably, the upper and lower ends of the protective cover 811 are provided with buffer limit heads 813 to limit the movement of the connecting part 801 and to buffer it; this facilitates buffer protection and ensures the service life of the equipment.

[0080] Preferably, the limiting component 873 is a C-shaped buckle, and the upper end of the detection shaft 87 is provided with an annular groove for installing the C-shaped buckle, which is convenient for assembly and has a good limiting and anti-detachment effect.

[0081] A vertical press-fitting method for rotor core and commutator, using the vertical press-fitting device for rotor core and commutator as described above, is implemented as follows:

[0082] The rotor core is fed to the rotor core positioning fixture corresponding to the positioning component. The rotor core is positioned at an angle by the positioning component. The positioned rotor core is then transferred to the rotor core positioning fixture corresponding to the pressing component by the rotor core clamping and feeding component.

[0083] The commutator is fed by a vibratory feeder and conveyed to the commutator distribution assembly via a linear vibration component for distribution and angle identification. The commutator feeding assembly takes material from the commutator distribution assembly and feeds it to the pressing assembly. The pressing assembly performs longitudinal pressing of the commutator and rotor core.

[0084] The press-fitted rotor core is transferred to the rotor core positioning fixture corresponding to the height detection component by the rotor core clamping and feeding assembly for height detection;

[0085] After height detection, the rotor core is transferred to the rotor core positioning fixture corresponding to the defective product recycling component via the rotor core clamping and feeding assembly, thus transferring the defective products.

[0086] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A vertical press-fitting device for rotor core and commutator, characterized in that, The device includes four rotor core positioning fixtures for positioning the rotor core and a rotor core clamping and feeding assembly for clamping the rotor core and feeding it between the positioning fixtures. The device also includes a positioning assembly for angular positioning of the rotor core, corresponding to the four rotor core positioning fixtures; a pressing assembly for vertical pressing of the commutator and rotor core; a height detection assembly; and a defective product recovery assembly. Furthermore, the device includes a commutator feeding assembly for feeding the commutator into the pressing assembly and a commutator feeding assembly for supplying the commutator to the commutator feeding assembly. The commutator distribution assembly includes a commutator angle recognition component, a vibratory feeder and a linear vibration component supplying the commutator to the commutator distribution assembly; a receiving channel with positioning grooves on its inner wall for commutator positioning; a pressing block movably positioned above the outlet of the receiving channel; the commutator distribution assembly also includes a first lifting unit that drives the pressing block to rise and fall, a blocking unit that blocks commutators reaching the outlet of the receiving channel, a material sensor that detects whether a commutator has reached the outlet of the receiving channel, and a sensor that detects the arrival of commutators. A distance sensor detects any groove on the surface of the commutator at the outlet of the receiving channel; the receiving module includes an upper receiving block and a lower receiving block distributed vertically, the upper surface of the lower receiving block is provided with a slot, the slot and the upper receiving block enclose the receiving channel; the upper receiving block is provided with a first protrusion extending into the receiving channel, the bottom of the slot is provided with a second protrusion directly opposite the first protrusion, both the first and second protrusions are provided with V-shaped grooves, and the bottom of the V-shaped grooves is provided with strip grooves. The V-shaped groove and the strip groove constitute the positioning groove; it also includes a mounting frame for mounting and fixing the receiving module, and the first lifting unit is mounted on the mounting frame; the mounting frame is provided with an L-shaped bracket for mounting the distance sensor, and the upper receiving block and the lower receiving block are both located inside the L-shape of the bracket; the material blocking unit includes a longitudinal material blocking plate and a material blocking cylinder for driving the material blocking plate; the end of the lower receiving block is provided with a guide block for guiding the lifting movement of the material blocking plate, and the guide block is provided with a guide groove.

2. The vertical pressing device for rotor core and commutator according to claim 1, characterized in that, The pressing assembly includes a pressing bracket, on which a pressing plate and a press for lifting and lowering the pressing plate are mounted. An adsorption head for an adsorption commutator is mounted on the lower surface of the pressing plate. The commutator feeding assembly includes a feeding head for longitudinally moving the commutator to the adsorption head and a feeding lateral movement unit for laterally moving the feeding head. The pressing bracket is provided with a limiting fork for stopping the lower end of the commutator on the adsorption head and a lateral movement unit for laterally moving the limiting fork.

3. The vertical pressing device for rotor core and commutator according to claim 2, characterized in that, The feeding head includes a feeding rod, the upper end of which is provided with a material-taking column that is interference-fitted with the inner hole of the commutator; the feeding head also includes a positioning rod arranged parallel to the feeding rod, the upper end of which is provided with a positioning fork for positioning the commutator; the feeding head also includes a feeding seat, which is connected to the movable end of the feeding transverse unit; the feeding seat is provided with a feeding block and a lifting cylinder that drives the feeding block to rise and fall; the feeding block is provided with the feeding rod, the positioning rod, and a first rotating unit that drives the feeding rod to rotate; the feeding block is provided with a tilting cylinder that drives the lifting cylinder to tilt longitudinally.

4. The vertical press-fitting device for rotor core and commutator according to any one of claims 1-3, characterized in that, The positioning assembly includes a clamping unit for clamping the upper shaft of the rotor core, a second rotating unit for rotating the clamping unit, and a second lifting unit for lifting the second rotating unit. It also includes a tapered pin acting on the outer surface of the rotor core clamped by the clamping unit and a mounting base for mounting the tapered pin. A connecting rod is provided on the mounting base, and the middle part of the connecting rod is rotatably connected to the mounting base. The tapered pin is provided at one end of one side surface of the connecting rod, and an elastic element is provided at the other end. A position sensor is provided on the mounting base to detect the position of the end of the connecting rod with the elastic element.

5. The vertical pressing device for rotor core and commutator according to claim 4, characterized in that, The mounting base includes a mounting plate. One side surface of the mounting plate is provided with a connecting rod positioning groove for positioning the connecting rod, and the other side surface of the mounting plate is provided with a movable slot communicating with the connecting rod positioning groove for the conical needle to protrude. The connecting rod is arranged longitudinally. Both the connecting rod positioning groove and the movable slot are communicating with the lower end face of the mounting plate. One side surface of the connecting rod is provided with a step that mates with the movable slot, and the conical needle is disposed on the surface of the step. A rotating shaft is fixedly inserted through the connecting rod, and the inner wall of the connecting rod positioning groove is provided with a mounting hole that mates with the rotating shaft. The rotating shaft is directly opposite the movable slot. The mounting base also includes a connecting upright, on which a mounting block is connected. The mounting plate is disposed on the mounting block. The position sensor is disposed on the mounting block. The mounting block is provided with a buffer head acting on the side surface of the connecting rod at the end where the elastic element is disposed, and a buffer head mounting bracket for mounting the buffer head. The positioning assembly also includes a mounting bracket for mounting the second lifting unit and the mounting base.

6. The vertical press-fitting device for rotor core and commutator according to any one of claims 1-3, characterized in that, The positioning fixture includes a positioning bracket and a fixture plate for longitudinally loading the rotor core. A support plate is provided on the positioning bracket, and the fixture plate is installed on the upper surface of the support plate. The positioning bracket is provided with a longitudinal positioning rod located below the support plate and a third lifting unit for driving the positioning rod to rise and fall. The positioning rod positions the rotor core by cooperating with a groove on the outer surface of the rotor core. A first through hole is provided on the support plate for the positioning rod to pass through, and a second through hole is provided on the fixture plate for the positioning rod to pass through.

7. The vertical press-fitting device for rotor core and commutator according to any one of claims 1-3, characterized in that, The height detection assembly includes a mounting base and a fourth lifting unit that drives the mounting base to move longitudinally. An upper mounting plate and a lower mounting plate are arranged vertically on the mounting base, with a gap between them. A displacement sensor and a sensor fixture for fixing the displacement sensor are mounted on the upper mounting plate. A detection sleeve is fixed on the lower mounting plate, and a detection shaft slides through the detection sleeve. The detection end of the displacement sensor is directly opposite the detection shaft. The lower end of the detection shaft extends out of the detection sleeve and has a positioning hole at its end that mates with the upper shaft of the rotor core. A spring is fitted onto the lower end of the detection shaft, and a step is formed to limit the lower end of the spring. The upper end of the spring abuts against or connects to the lower end of the detection sleeve. A limiting member is provided at the upper end of the detection shaft to prevent it from dislodging from the detection sleeve.

8. A method for vertically pressing a rotor core and a commutator, using the vertical pressing device for a rotor core and a commutator as described in any one of claims 1-7, characterized in that, The implementation method is as follows: The rotor core is fed to the rotor core positioning fixture corresponding to the positioning component. The rotor core is positioned at an angle by the positioning component. The positioned rotor core is then transferred to the rotor core positioning fixture corresponding to the pressing component by the rotor core clamping and feeding component. The commutator is fed by a vibratory feeder and conveyed to the commutator distribution assembly via a linear vibration component for distribution and angle identification. The commutator feeding assembly takes material from the commutator distribution assembly and feeds it to the pressing assembly. The pressing assembly performs longitudinal pressing of the commutator and rotor core. The press-fitted rotor core is transferred to the rotor core positioning fixture corresponding to the height detection component by the rotor core clamping and feeding assembly for height detection; After height detection, the rotor core is transferred to the rotor core positioning fixture corresponding to the defective product recycling component via the rotor core clamping and feeding assembly, thus transferring the defective products.

Images