Motor end cover automatic riveting equipment

Abstract

The present invention discloses an automatic riveting device for a motor end cover, wherein the stamping and riveting device comprises a stamping mechanism and a stamping die mounted on the stamping mechanism, wherein the stamping die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises: an upper fixed seat, wherein the upper fixed seat is mounted on the upper die assembly, wherein the upper fixed seat is provided with a plurality of stamping knives distributed at intervals, wherein the stamping knives are provided with a stamping portion adapted to the motor housing wall; wherein the lower die assembly comprises: a lower fixed seat, wherein the lower fixed seat is mounted on the lower die assembly, wherein the lower fixed seat is provided with a motor receiving groove for positioning and placing the motor; wherein the motor loading and unloading and handling device comprises a lateral displacement driving mechanism, a longitudinal displacement driving mechanism and a plurality of workpiece grasping devices; and a push-pull mechanism, wherein the push-pull mechanism is mounted on the side of the lower fixed seat, and the push-pull portion of the push-pull mechanism is connected to the lower fixed seat. The safety accidents and damage to the riveting die are prevented from occurring, labor costs and production costs are reduced, and processing efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automated riveting production equipment, in particular to an automatic riveting equipment for a motor end cover. Background Art

[0002] At present, the end cover on the motor housing is riveted by manually placing the motor housing in a stamping and riveting device, and then manually controlling the stamping and riveting device to work so as to rivet the end cover to the port of the motor housing. However, this operation is manually controlled, so it is easy to cause misoperation, which often causes safety accidents and damage to the riveting mold. In addition, more stamping and riveting devices and operators are required for large-scale processing, which leads to high labor costs and production costs. At the same time, the manual loading operation also has the defect of low processing efficiency. Therefore, there is an urgent need for a processing equipment with fully automatic loading and automatic riveting. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the above-mentioned technology and to provide an automatic riveting device for motor end covers, and its specific structure is as follows.

[0004] The motor end cover automatic riveting device designed by the present invention comprises:

[0005] The punching and riveting device comprises a punching mechanism and a punching die mounted on the punching mechanism, wherein the punching die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly comprises: an upper fixing seat mounted on the upper die assembly, wherein a plurality of punching knives distributed at intervals are arranged on the upper fixing seat, wherein the punching knives are provided with a punching portion adapted to a motor housing wall; wherein the lower die assembly comprises: a lower fixing seat mounted on the lower die assembly, wherein a motor receiving groove for positioning and placing the motor is arranged on the lower fixing seat;

[0006] The motor loading and unloading handling device comprises a transverse displacement driving mechanism, a longitudinal displacement driving mechanism and a plurality of workpiece grasping devices, wherein the transverse displacement driving mechanism and the longitudinal displacement driving mechanism drive the plurality of workpiece grasping devices to perform longitudinal and transverse translation, so as to remove the riveted motor from the motor receiving groove and put the motor to be riveted into the motor receiving groove;

[0007] The push-pull mechanism is installed beside the lower fixed seat, and the push-pull part of the push-pull mechanism is connected to the lower fixed seat to drive the lower fixed seat to move below the workpiece grasping device or to move below the upper fixed seat.

[0008] Preferably, the upper mold assembly also includes a unloading spring and an upper pressure column that abuts against the lower end of the unloading spring, the stamping knife is arranged on the side of the upper pressure column, the upper fixed seat is provided with a accommodating cavity, the unloading spring is installed in the accommodating cavity, the upper pressure column is slidably arranged in the accommodating cavity and partially placed outside the upper fixed seat, the upper end of the unloading spring abuts against the upper inner wall of the accommodating cavity, or the upper end of the unloading spring passes through the accommodating cavity and is inserted into the accommodating hole of the upper mold seat, and is connected to or abuts against the upper inner wall of the accommodating hole.

[0009] Preferably, it also includes an upper mold base, the upper fixed base includes an upper fixed plate and a lower fixed plate, the upper fixed plate is installed on the upper mold base, the lower fixed plate is fixed to the upper fixed plate, a communicating accommodating cavity is arranged between the upper fixed plate and the lower fixed plate, the punching knife is installed on the lower fixed plate, and the upper pressure column is slidably installed on the lower fixed plate.

[0010] Preferably, an upper pressure plate is provided at the lower end of the upper pressure column, and a plurality of pressure blocks are provided at intervals along the circumferential direction of the upper pressure plate, and a limiting groove matching with the motor housing is formed between the pressure blocks and the outer wall of the upper pressure plate; a through groove facing the punching knife is provided on the side wall of the upper pressure plate, and the inner side of the punching knife is inserted into the through groove.

[0011] Preferably, it also includes a lower mold base, which is provided with a slide groove, the lower fixed seat is slidably arranged on the slide groove, a push-pull mechanism is installed on the lower mold base, the lower fixed seat is connected to the push-pull mechanism, and a positioning structure for limiting the positioning of the motor is provided in the motor accommodating groove.

[0012] Preferably, the positioning structure is inserted into the motor accommodating groove, and a micro switch is arranged below the positioning structure.

[0013] Preferably, a buffer mechanism is provided between the upper die base and the lower die base, the buffer mechanism comprises a buffer spring and a guide rod, the buffer spring is sleeved on the guide rod, the guide rod is fixed on the lower die base, and the upper die base is movably mounted on the guide rod.

[0014] Preferably, it also includes a motor axial rotation positioning device located at the loading station beside the stamping mechanism, the motor axial rotation positioning device includes a positioning seat, a rotating mechanism and a positioning detection mechanism, a rotating member is installed on the output shaft of the rotating mechanism, the rotating member is axially connected to the motor, the positioning detection mechanism includes a horizontal moving mechanism, a positioning block and a first position sensor, the positioning block is telescopically connected to the horizontal moving mechanism, the positioning block is arranged close to the rotating member, the positioning block is adapted to be inserted into the notch on the side wall of the motor, and the first position sensor is arranged close to the detection part of the positioning block;

[0015] The rotating member is rotatably mounted on the positioning seat; a positioning ring is also mounted on the positioning seat, the rotating member is mounted in or on the positioning ring, and the motor is accommodated in the positioning ring or in the rotating member;

[0016] The horizontal movement mechanism comprises a driving cylinder and a supporting plate. The driving cylinder is mounted on a positioning seat. The supporting plate is arranged on the output shaft of the driving cylinder. An elastic telescopic member is slidably mounted between the positioning block and the supporting plate.

[0017] Preferably, the elastic telescopic member comprises a first spring and a guide column, the first spring is sleeved on the guide column, the support plate is provided with a first guide plate, the first guide plate is provided with a guide hole, the first spring is arranged between the first guide plate and a positioning block, the positioning block is slidably mounted on the support plate, the positioning block is provided with a guide column that is movable and inserted into the guide hole, and the first position sensor is mounted on the first guide plate;

[0018] The positioning detection mechanism also includes a sliding seat, the support plate is slidably mounted on the sliding seat, and the sliding seat is mounted on the positioning seat.

[0019] Preferably, the elastic telescopic member comprises a first spring, the support plate is a vertical plate, a mounting hole is vertically penetrated on the positioning block, a protrusion is provided on the side wall of the mounting hole, the vertical plate is movably inserted into the mounting hole, and the first spring is arranged between the vertical plate and the protrusion;

[0020] The positioning detection mechanism also includes a slide seat, the positioning block is slidably mounted on the slide seat, a guide shaft is provided on the support plate, the guide shaft is slidably mounted on the slide seat, the first position sensor and the driving cylinder are mounted on the slide seat, and the slide seat is mounted on the positioning seat.

[0021] Preferably, the positioning detection mechanism is installed on the positioning seat via a height adjustment mechanism.

[0022] Preferably, it also includes a feeding and conveying mechanism for the motor to be riveted located at the feeding station beside the stamping mechanism, and the motor axial rotation positioning device is arranged between the feeding and conveying mechanism for the motor to be riveted and the lower die assembly of the stamping and riveting device.

[0023] Preferably, it also includes a flip mechanism arranged on one side of the motor feeding and conveying mechanism to be riveted, wherein the flip mechanism includes a rotary cylinder and a grabbing structure fixed on the output shaft of the rotary cylinder;

[0024] It also includes a fourth plate body, a third slide rail is fixed on the fourth plate body, the rotating cylinder is fixed on the third slider of the third slide rail, a third cylinder is fixed on the fourth plate body, and the output end of the third cylinder is fixed to the rotating cylinder.

[0025] Preferably, it also includes a unloading mechanism located at the unloading station next to the stamping mechanism, the unloading mechanism includes a translation drive device, a qualified product unloading track and an unqualified product unloading box, the qualified product unloading track and the unqualified product unloading box are both installed on the translation drive device, and the qualified product unloading track and the unqualified product unloading box are both located below the workpiece grasping device.

[0026] Preferably, it also includes a magnetizing device located at the blanking station beside the stamping mechanism, the magnetizing device is located below the workpiece grasping device and is arranged between the blanking mechanism and the stamping and riveting device; the magnetizing device includes a second device body, an iron frame, a first coil winding and a second coil winding fixed in the iron frame, the first coil winding and the second coil winding are symmetrically installed on both sides of the second device body, and the second device body is provided with a motor placement position;

[0027] A groove is formed outside the second device body, a through hole is formed between the groove structure and the bottom surface of the motor placement position, a first micro switch is fixed on the groove, and a spring of the first micro switch extends upward to the bottom surface of the motor placement position through the through hole;

[0028] The first coil winding and / or the second coil winding has a shell structure outside, a limiting block is fixed on the shell structure, and an arc groove matching the shape of the product is opened on the limiting block.

[0029] Preferably, it also includes a motor hole position detection device located at the blanking station beside the stamping mechanism, and the motor hole position detection device is located below the workpiece grasping device; the motor hole position detection device includes a first device body, a detection placement position is provided on the first device body, a detection column that matches the hole position is retractably provided on the detection placement position, and a second micro switch is provided below the detection column; the spring sheet of the second micro switch is located below the detection column, and after the detection column is pressed, the bottom of the detection column moves downward to press the spring sheet of the second micro switch downward, and when the detection column is not subjected to external force, the bottom of the detection column does not contact the spring sheet of the second micro switch;

[0030] The first device body is provided with a cavity for the detection column to pass through, and the detection column outer cover located in the cavity is provided with a reset structure;

[0031] A limit ring is fixed on the detection column in the cavity, a reset structure is sleeved between the limit ring and the bottom of the cavity, and the reset structure includes a spring;

[0032] The inner wall of the device body is provided with a protruding structure, the detection column is arranged in the protruding structure, the top of the protruding structure forms a detection placement position, the top surface of the protruding structure is the bottom surface of the detection placement position, and the bottom surface of the protruding structure and the protrusion of the detection column limit each other.

[0033] The motor end cover automatic riveting equipment designed by the present invention utilizes automatic loading, automatic riveting and unloading of the motor that has been automatically processed, so that it is not easy to cause malfunction during the processing, thereby preventing safety accidents and damage to the riveting mold from occurring, and also avoiding the presence of human hands in the mold, while also reducing labor costs and production costs and improving processing efficiency.

[0034] In addition, it also has the following beneficial effects.

[0035] The motor stamping and riveting die places the assembled motor on the lower fixed seat, and the positioning pin effectively positions the bottom of the motor to ensure that the motor will not be offset and deformed during stamping. The stamping part of the stamping knife presses down the motor shell, and under the stamping action of the stamping head, the motor shell wall at the corresponding position is cut and bent to press the motor cover, which has high working efficiency.

[0036] The motor hole position detection device can detect the opening of the threaded hole of the motor through the detection column, and can magnetize the inside of the motor through the magnetizing device. The present invention uses a micro switch to operate the equipment, increase the degree of automation of the equipment, and improve the detection and magnetization efficiency.

[0037] The motor axial rotation positioning device drives the positioning block to be retractable against the motor side wall through the horizontal moving mechanism, and the rotating mechanism drives the axially arranged motor to rotate. When the motor gap and the positioning block are just aligned, the positioning block is instantly elastically snapped into the gap of the motor side wall, and the rotating mechanism stops rotating. The first position sensor detects whether the positioning block is inserted into the motor gap, thereby realizing the axial positioning of the motor, ensuring the accuracy of subsequent assembly of the motor, and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall equipment structure (I);

[0039] Figure 2 It is a schematic diagram of the overall equipment structure (II);

[0040] Figure 3 It is a schematic diagram of the overall equipment structure (III);

[0041] Figure 4 is a three-dimensional diagram of Example 1 when a motor is placed on a motor stamping and riveting die;

[0042] Figure 5 is a three-dimensional view of the upper mold assembly;

[0043] Figure 6 is a three-dimensional diagram of Example 2 when a motor is placed on a motor stamping and riveting die;

[0044] Figure 7 yes Figure 6A stereogram of another aspect;

[0045] Figure 8 yes Figure 4 A cross-sectional view of the upper mold assembly and the lower mold assembly when the mold is closed;

[0046] Fig. 9 yes Figure 6 A cross-sectional view of the upper mold assembly facing the lower mold assembly when the motor is not placed;

[0047] Fig.10 is a stereoscopic view of Example 1 when the motor is installed on the motor axial rotation positioning device;

[0048] Fig.11 is a stereogram of Embodiment 2 of the motor axial rotation positioning device;

[0049] Fig.12 yes Fig.11 A three-dimensional diagram of the motor being installed on the top;

[0050] Fig.13 yes Fig.10 A top view of

[0051] Fig.14 yes Fig.10 A cross-sectional view of

[0052] Fig.15 yes Fig.11 A cross-sectional view of

[0053] Fig.16 It is a three-dimensional diagram of the handling device;

[0054] Fig.17 It is a three-dimensional diagram of the turning mechanism of the handling device;

[0055] Fig.18 It is a side view of the handling device;

[0056] Fig.19 for Fig.16 A magnified image of point A;

[0057] Fig. 20 is a three-dimensional diagram of a magnetizing device;

[0058] Fig.21 is a stereoscopic diagram of a second device body;

[0059] Fig. 22 It is a schematic cross-sectional view of the main body of the device for hole position detection;

[0060] Fig.23 It is a stereoscopic diagram of the main body of the hole position detection device;

[0061] Fig.24 It is a three-dimensional diagram of the main body of the hole position detection device. DETAILED DESCRIPTION

[0062] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0063] Example:

[0064] As shown in the accompanying drawings, the workbench described in this embodiment, as well as the stamping and riveting device 100, the motor loading and unloading handling device 700 and the push-pull mechanism 40 installed on the workbench; the stamping and riveting device 100 includes a stamping mechanism 101 and a stamping die 102 installed on the stamping mechanism 101, the stamping die 102 includes an upper die assembly 38 and a lower die assembly 39, the upper die assembly 38 includes: an upper fixed seat 381, the upper fixed seat 381 is installed on the upper die seat 35, the upper fixed seat 381 is provided with a plurality of spaced stamping knives 382, ​​the stamping knife 382 is provided with a stamping portion 382a adapted to the shell wall of the motor 200; the lower die assembly 39 includes: a lower fixed seat 391, the lower fixed seat 391 is installed on the lower die seat 36, the lower fixed seat 391 is provided with a motor accommodating groove 391a for positioning and placing the motor; the stamping knife 382 is located on the inner side of the upper fixed seat 391. The stamping part 382a is stepped, and the stamping mechanism adopts an ultra-quiet terminal machine.

[0065] Specifically, a positioning structure 392 for limiting the positioning of the motor 200 is provided in the motor receiving groove 391a. Figure 1 3 , the structure inside the motor 200 is omitted.

[0066] Specifically, the punching knife 382 is located inside the upper fixing seat 391. The punching portion 382a is stepped. A positioning hole 202 is provided at the bottom of the motor 200, and the positioning structure 392 is a positioning pin 392 that passes through the positioning hole 202.

[0067] Preferably, the positioning structure 392 is inserted into the motor accommodating groove 391 a , and a micro switch 393 is provided below the positioning structure 392 .

[0068] By setting the micro switch 393, it is possible to detect whether the positioning structure 392 is inserted into the positioning hole 202 of the motor 200, thereby avoiding the situation where positioning failure due to the positioning structure 392 not being inserted causes stamping deformation.

[0069] Specifically, the micro switch 393 is disposed in the lower fixing seat 381. The positioning structure 392 is a positioning ejector pin.

[0070] Preferably, the upper mold assembly 38 also includes an upper mold base 35, a discharge spring 383 and an upper pressure column 384 that abuts against the lower end of the discharge spring 383, the punching knife 382 is arranged on the side of the upper pressure column 384, the upper fixed seat 381 is provided with a accommodating cavity 381a, the discharge spring 383 is installed in the accommodating cavity 381a, the upper pressure column 384 is slidably arranged in the accommodating cavity 381a and is partially placed outside the upper fixed seat 381.

[0071] Among them, the ultra-quiet terminal machine controls the punching knife to move downward. Initially, the inner wall of the punching knife moves downward against the outer wall of the motor port. At this time, the upper pressure column contacts the end cover on the motor until the punching part punches the edge of the motor port to form a riveted part, thereby completing the punching. Next, the discharge spring 383 and the upper pressure column 384 form an elastic separation structure. After the stamping of the motor 200 is completed, the punching head 37 drives the upper fixed seat 381 and the discharge spring 383 to move upward. The downward elastic force of the discharge spring 383 is transmitted to the top of the motor 200 through the upper pressure column 384, so that the upper pressure column 384 is separated from the top of the motor 200, avoiding the adhesion between the motor 200 and the upper pressure column 384 and the punching knife 382.

[0072] Preferably, the accommodating cavity 35a and the upper pressure column 384 are limited by a limiting ring.

[0073] like Figure 4 , 5 As shown in Figure 8, as one of the implementation methods of the upper mold assembly 38, specifically, the upper fixed seat 381 includes an upper fixed plate 385 and a lower fixed plate 386, the upper fixed plate 381 is installed on the upper mold seat 35, the lower fixed plate 386 is fixed to the upper fixed plate 385, a connected accommodating chamber 381a is set between the upper fixed plate 385 and the lower fixed plate 386, the punching knife 382 is installed on the lower fixed plate 386, the upper pressure column 384 is slidably installed on the lower fixed plate 386, the upper end of the unloading spring 383 is in contact with the upper inner wall of the accommodating chamber 381a, or the upper end of the unloading spring 383 passes through the accommodating chamber 381a and is inserted into the accommodating hole of the upper mold seat 35, and is connected to or in contact with the upper inner wall of the accommodating hole.

[0074] Specifically, an upper pressure plate 387 is provided at the lower end of the upper pressure column 384, and a plurality of spaced pressure blocks 388 are provided on the upper pressure plate 387 along the circumferential direction, and a limiting groove 389 that matches the motor housing is formed between the pressure blocks 388 and the outer wall of the upper pressure plate 387. The top of the motor housing is straightened by providing the pressure blocks 388 and the limiting groove 389.

[0075] Preferably, the pressing block 388 is an arc-shaped block.

[0076] Specifically, a through groove 387 a facing the punching knife 382 is provided on the side wall of the upper pressure plate 387 , and the inner side of the punching knife 382 is inserted into the through groove 387 a .

[0077] Preferably, a gap is left between the stamping portion 382a and the through slot 387a.

[0078] Preferably, a motor shaft hole 387c and a cover sleeve hole 387d are provided in the middle of the upper pressure plate 387, which are connected to each other, so as to press the cover sleeve 204 and the motor shaft 205 at the same time and ensure the stamping accuracy.

[0079] Preferably, the upper pressure plate 387 is provided with a circumferentially arranged escape portion 387b for the metal sheet 203 protruding from the motor 200 to pass through, and the escape portion 387b can be selectively communicated with the motor cover hole 387d. The escape portion 387b is spaced apart from the pressing block 388, and the number and position of the escape portion 387b can be set according to the model of the motor 200. The escape portion 387b is an escape notch.

[0080] Specifically, a sheath 390 is provided on the upper fixing plate 385 and the lower fixing plate 386 , and the sheath 390 is located on the outside of the punching knife 382 .

[0081] like Figure 6 , 7 As shown in FIG. 9 , as another implementation of the upper die assembly 38, specifically, the upper die base 35 is installed on the retractable punch head 37, and the unloading spring 383 is inserted into the accommodating hole of the upper die base 35 and abuts against or connects with the punch head 37 at the upper end of the accommodating hole.

[0082] Preferably, a motor shaft hole 387c and a cover sleeve hole 387d are provided in the middle of the upper pressure column 384 to communicate with each other, so as to press the cover sleeve 204 and the motor shaft 205 at the same time, thereby ensuring the positioning accuracy and stamping accuracy of the motor 200.

[0083] In this embodiment, the lower mold assembly further includes a lower mold base 36 , on which a slide groove 36 a is disposed, on which a lower fixed base 391 is slidably disposed, and on which a push-pull mechanism 40 connected to the lower fixed base 391 is disposed.

[0084] By setting up a push-pull mechanism 40, the lower fixed seat 391 is driven to move to the bottom of the workpiece grasping device or to the bottom of the upper fixed seat 381, so that the motor 200 placed on the lower fixed seat 391 is automatically transported to the bottom of the upper mold seat 35 or the bottom of the workpiece grasping device. It is flexible to use and has high work efficiency.

[0085] Specifically, the push-pull mechanism 40 includes a push-pull cylinder 44 and a push plate 45 . The push-pull cylinder 44 is installed on the lower die base 36 . The push plate 45 is installed on the output shaft of the push-pull cylinder 44 . The push plate 45 is connected to the lower fixed base 391 .

[0086] Preferably, a first limiting plate and a second limiting plate are relatively disposed in the slide groove 36 a so as to limit the moving path of the lower fixing seat 391 to improve the positioning accuracy of the motor 200 .

[0087] Preferably, the first limiting plate and the second limiting plate are respectively provided with hydraulic buffers that cooperate with the bottom plate 46 .

[0088] Preferably, the lower fixing seat 391 includes a bottom plate 46 , an axial positioning ring 47 and a circumferential positioning ring 48 which are arranged in sequence. The bottom plate 46 is mounted on the upper die seat 35 , and a straightening portion 49 which is arranged oppositely is extended from the circumferential positioning ring 48 .

[0089] The axial positioning ring 47 and the circumferential positioning ring 48 are provided to position the motor housing in the axial direction and the axial direction, and the straightening portion 49 straightens the middle of the motor housing, thereby further ensuring the positioning accuracy and stamping accuracy of the motor 200.

[0090] Specifically, the micro switch 393 is installed in the axial positioning ring 47 , and the positioning ejector pin 392 is arranged on the axial positioning ring 47 .

[0091] Preferably, an axial positioning hole is provided in the axial positioning ring 47 , and a motor positioning hole is provided in the circumferential positioning ring 48 .

[0092] Preferably, a buffer mechanism 41 is provided between the upper die base 35 and the lower die base 36. The buffer mechanism 41 includes a buffer spring 42 and a guide rod 43. The buffer spring 42 is sleeved on the guide rod 43. The guide rod 43 is movably installed between the upper die base 35 and the lower die base 36. The upper end of the guide rod 43 is installed on the upper die base 35 through a shaft sleeve.

[0093] Among them, the micro switch 393, the punch head 37 and the push-pull cylinder 44 are respectively connected to the external control unit.

[0094] In the initial state, the positioning ejector pin 392 does not press down the micro switch 393. When the motor 200 is placed on the lower fixed seat 391, if the positioning ejector pin 392 is not inserted into the positioning hole 202 at the bottom of the motor 200, the motor 200 presses the positioning ejector pin 392 and touches the micro switch 393. The micro switch 393 sends a signal to the control unit, and the push-pull cylinder 44 does not move; if the positioning ejector pin 392 is inserted into the positioning hole 202 at the bottom of the motor 200, the positioning ejector pin 392 does not press down the micro switch 393. The micro switch 393 sends a signal to the control unit, and the control unit controls the push-pull cylinder 44 to move, drive the motor 200 on the lower fixed seat 391 to move to the bottom of the upper fixed seat 381, and the control unit controls the punch head 37 to punch the motor 200 downward. After the punching is completed, the control unit controls the push-pull cylinder 44 to move, drive the motor 200 on the lower fixed seat 391 to move in the opposite direction to the corresponding position, waiting for the subsequent process to take the motor 200. The control unit is a PLC controller.

[0095] The motor loading and unloading handling device includes a lateral displacement driving mechanism, a longitudinal displacement driving mechanism and a plurality of workpiece grasping devices 2. The lateral displacement driving mechanism and the longitudinal displacement driving mechanism drive the plurality of workpiece grasping devices 2 to perform longitudinal and lateral translation to remove the riveted motor from the motor receiving groove 391a and put the motor to be riveted into the motor receiving groove 391a. The lateral displacement driving mechanism includes a first plate body 5 and a first cylinder 3. The first cylinder 3 is transversely fixed on the first plate body 5. The first plate body 5 is also fixed with a first slide rail 6. The longitudinal displacement driving mechanism includes a second air cylinder 3. The cylinder 4 also includes a third plate body 8 fixed on the workbench, the second cylinder 4 is longitudinally fixed on the third plate body 8, a second slide rail 9 is fixed on the third plate body 8, the first plate body 5 is fixed on the slider of the second slide rail 9, the output end of the second cylinder 4 is fixedly connected to the first plate body 5, and the second plate body 7 is also transversely fixed with a first slide rail 6, the slider of the first slide rail 6 is fixedly connected to the first plate body 5, and more than two workpiece grasping devices are fixedly installed on the second plate body 7, wherein the workpiece grasping device 2 adopts a pneumatic clamp, and the more than two pneumatic clamps are arranged at intervals from each other.

[0096] Correspondingly, a motor feeding and conveying mechanism 901 to be riveted is arranged at the feeding station beside the stamping mechanism 101, and the motor axial rotation positioning device 300 is arranged between the motor feeding and conveying mechanism 901 to be riveted and the lower die assembly 39 of the stamping and riveting device 100. The motor feeding and conveying mechanism 901 to be riveted adopts a linear belt conveyor, and a limiting vertical plate 15 is fixed on the peripheral side of the linear belt conveyor to prevent the product from moving sideways. A groove 16 is provided on the limiting vertical plate 15, which can facilitate the grasping structure 11 to grasp the product downward. The linear belt conveyor is fixed with a limiting baffle 17 at one end of the conveying direction of the linear belt conveyor to prevent the product from moving outside the linear belt conveyor.

[0097] Sensors 13 are fixed on both sides of the linear belt conveyor, and the sensors 13 can be used to transmit whether the product has arrived at the waiting position or whether it has been dumped.

[0098] The first cylinder 3 and the second cylinder 4 work in cooperation, so that the workpiece grasping device can grasp the motor located at the discharge end of the linear belt conveyor device, and then put it into the corresponding workstation through the cooperation of the first cylinder and the second cylinder.

[0099] Based on another aspect of the above, it also includes a flip mechanism arranged on one side of the motor feeding and conveying mechanism 901 to be riveted, the flip mechanism includes a rotary cylinder 10 and a gripping structure 11 fixed on the output shaft of the rotary cylinder 10; it also includes a fourth plate 12, a third slide rail is fixed on the fourth plate 12, the rotary cylinder 10 is fixed on the third slider of the third slide rail, a third cylinder 14 is fixed on the fourth plate 12, and the output end of the third cylinder 14 is fixed to the rotary cylinder 10. Since the motor conveyor is in a horizontal state or tilts during the conveying process, if the sensor senses it, the tilted product can be flipped by controlling the gripping structure, and the motor can be rotated to a vertical state to facilitate the stamping and riveting operation.

[0100] In this embodiment, it also includes a motor axial rotation positioning device 300 located at the loading station beside the stamping mechanism. The motor axial rotation positioning device 300 includes a rotating mechanism 20 and a positioning detection mechanism 21. A rotating member 22 is installed on the output shaft of the rotating mechanism 20. The rotating member 22 is axially connected to the motor 200. The positioning detection mechanism 21 includes a horizontal moving mechanism 23, a positioning block 24 and a first position sensor 25. The positioning block 24 is retractably connected to the horizontal moving mechanism 23. The positioning block 24 is arranged close to the rotating member 22. The positioning block 24 is adapted to be inserted into the notch 201 on the side wall of the motor 200. The first position sensor 25 is arranged close to the detection part 24 of the positioning block. Among them, Fig.10 The structure inside the motor 200 is omitted. Figure 2 The first spring 234 is omitted.

[0101] Specifically, the rotating mechanism 20 includes a driving motor 31 , and an output shaft of the driving motor 31 is connected to the rotating member 22 via a coupling 32 .

[0102] Specifically, the end of the positioning block 24 is provided with a plurality of positioning protrusions 241, and the positioning protrusions 241 are adapted to the butterfly-shaped notches of the motor 200. By adjusting the shape and number of the positioning protrusions 241, notches of different shapes on the motor 200 can be adapted.

[0103] Preferably, a positioning seat 26 is further included, and the rotating member 22 is rotatably mounted on the positioning seat 26 .

[0104] Specifically, a positioning ring 27 is also installed on the positioning seat 26 , the rotating member 22 is installed in or on the positioning ring 27 , and the motor 200 is accommodated in the positioning ring 27 or in the rotating member 22 .

[0105] The motor 200 is fixed in the axial and circumferential directions by the rotating member 22 and the positioning ring 27, thereby providing effective support for the motor 200 and preventing it from being skewed during rotation.

[0106] Preferably, the positioning seat 26 is installed and fixed by a support.

[0107] Specifically, the rotating member 22 includes a rotating shaft 221 and a disc 222 connected to the upper end of the rotating shaft 221, and a motor shaft accommodating area is provided in the disc 222. The disc 222 effectively supports the motor shaft housing and the motor shaft.

[0108] Preferably, when the rotating member 22 is installed in the positioning ring 27, the positioning seat 26 is provided with a shaft accommodating hole, and the positioning ring 27 is provided with an accommodating hole for accommodating the motor 200 and the disk body 32; when the rotating member 22 is installed on the positioning ring 27, the positioning seat 26 and the positioning ring 27 are both provided with a shaft accommodating hole, and the rotating member 22 is provided with a motor accommodating groove.

[0109] Preferably, the horizontal moving mechanism 23 includes a driving cylinder 231 and a support plate 232 . The driving cylinder 231 is mounted on the positioning seat 26 . The support plate 232 is arranged on the output shaft of the driving cylinder 231 . An elastic telescopic member 233 is slidably installed between the positioning block 24 and the support plate 232 .

[0110] As one of the implementation methods of the elastic telescopic member 233, specifically, the elastic telescopic member 233 includes a first spring 234 and a guide column 235, the first spring 234 is sleeved on the guide column 235, a first guide plate 236 is installed on the support plate 232, a guide hole 236a is provided on the first guide plate 236, the first spring 234 is arranged between the first guide plate 236 and the positioning block 24, the positioning block 24 is slidably installed on the support plate 232, a guide column 235 that is movably inserted into the guide hole 236a is installed on the positioning block 24, and the first position sensor 25 is installed on the first guide plate 236.

[0111] Preferably, the output shaft of the driving cylinder 231 is plugged into the supporting plate 232 via a vertical plate.

[0112] Preferably, a side plate located on the side of the positioning block 24 is installed on the first guide plate 236, and the first position sensor 25 is installed on the side plate.

[0113] As another implementation of the elastic telescopic member 233, specifically, the elastic telescopic member 233 includes a first spring 234, the support plate 232 is a vertical plate, a mounting hole 24a is vertically penetrated on the positioning block 24, a protrusion 24b is provided on the side wall of the mounting hole 24a, the vertical plate is movably inserted into the mounting hole 24a, and the first spring 234 is arranged between the vertical plate and the protrusion 24b.

[0114] As one implementation of the positioning detection mechanism 21, preferably, the positioning detection mechanism 21 further includes a slide 28, the support plate 232 is slidably mounted on the slide 28, and the slide 28 is mounted on the positioning seat 26. The slide 28 guides and supports the moving path of the support plate 232.

[0115] As another implementation of the positioning detection mechanism 21, preferably, the positioning detection mechanism 21 further includes a slide 28, the positioning block 24 is slidably mounted on the slide 28, a guide shaft 237 is provided on the support plate 232, the guide shaft 237 is slidably mounted on the slide 28, the first position sensor 25 and the driving cylinder 231 are mounted on the slide 28, and the slide 28 is mounted on the positioning seat 26. The moving path of the positioning block 24 is guided and supported by the slide 28.

[0116] Specifically, a second guide plate is mounted on the slide 28, the guide shaft 237 is slidably mounted on the second guide plate, and the driving cylinder 231 is fixed on the second guide plate. The first position sensor 25 is mounted on the slide 28 via a transverse plate.

[0117] Preferably, the positioning detection mechanism 21 is installed on the positioning seat 41 through a height adjustment mechanism 29 .

[0118] As one of the implementation methods of the height adjustment mechanism 29, specifically, the slide seat 28 is installed on the positioning seat 26 through the mounting seat 33. The height adjustment mechanism 29 includes an adjusting screw not shown in the figure. The mounting seat 33 is provided with a waist hole adjustment hole 33a, and the positioning seat 26 is provided with a fixing groove. The adjusting screw passes through the waist hole adjustment hole 33a and is fixed in the fixing groove. The height of the mounting seat 33 is adjusted by adjusting the position of the waist hole adjustment hole 33a relative to the fixing groove to adapt to the positioning needs of the notches 201 at different positions on motors 200 of different models.

[0119] As another implementation of the height adjustment mechanism 29, specifically, the height adjustment mechanism 29 includes an adjustment stud 291 and an adjustment nut (not shown in the figure), the adjustment stud 291 is installed on the positioning seat 26, and a second spring 292 located below the slide 28 is sleeved on the adjustment stud 291. The slide 28 is slidably installed on the adjustment stud 291 and fixed by the adjustment nut. By tightening or loosening the adjustment nut, the height of the slide 28 relative to the positioning seat 26 can be adjusted to adapt to the positioning needs of the notches 201 at different positions on different models of motors 200. By setting the second spring 292, the slide 28 is elastically supported, which is convenient for operation.

[0120] Preferably, two adjusting screws 291 are provided opposite to each other, and a supporting screw 293 installed on the slide seat 28 is provided between the two adjusting screws 291 , and the supporting screw 293 is fixed to the positioning seat 26 by a fastening nut.

[0121] Preferably, a second position sensor 30 is further included, and the second position sensor 30 is disposed close to the motor 200 .

[0122] Specifically, the second position sensor 30 is fixedly installed via a support.

[0123] The first position sensor 25 , the second position sensor 30 , the driving cylinder 231 and the rotating motor are respectively connected to the external control unit. The first position sensor 25 and the second position sensor 30 are proximity switches.

[0124] When the positioning block 24 is in the initial position, the positioning block 24 is in close contact with the first position sensor 25, and the first position sensor 25 can collect the signal of the positioning block 24. When the second position sensor 30 detects that the motor 200 is placed on the positioning seat 26, it sends a signal to the control unit. The control unit controls the driving cylinder 231 to drive the positioning block 24 to move horizontally to elastically resist the side wall of the motor 200, and the rotating motor drives the shaft to drive the motor 200 to rotate. When the positioning block 24 is stuck in the notch of the side wall of the motor 200, the positioning block 24 is away from the first position sensor 25. The first position sensor 25 cannot collect the signal of the positioning block 24 and sends a signal to the control unit. The control unit controls the rotating motor to stop rotating and controls the driving cylinder 231 to drive the positioning block 24 to move in the opposite direction to disengage from the side wall of the motor 200. The control unit is a PLC controller.

[0125] In addition, after adding the motor axial rotation positioning device and the linear belt conveying device, at least three pneumatic clamps need to be set up to achieve synchronous conveying of three motors and improve work efficiency.

[0126] In the present embodiment, it also includes a feeding mechanism 600 located at the feeding station beside the stamping mechanism 101, and the feeding mechanism 600 includes a translation drive device 603, a qualified product feeding track 601 and a unqualified product feeding box 602, the qualified product feeding track 601 and the unqualified product feeding box 602 are both installed on the translation drive device 603, and the qualified product feeding track 601 and the unqualified product feeding box 602 are both located below the workpiece grasping device 2, wherein the qualified product feeding track 601 is connected to the feeding belt conveyor 901 at the discharge port, so as to realize the automatic conveying of the qualified products, and the translation drive device drives the qualified product feeding track and the unqualified product feeding box to be connected. The material box moves in translation, and when the hole position detection device finds that the product is unqualified after detection, the unqualified product discharge box is moved to a position corresponding to the pneumatic clamp position for discharge, so as to receive the unqualified products. When the hole position detection device finds that the product is qualified after detection, the qualified product discharge track is moved to a position corresponding to the pneumatic clamp position for discharge, so as to receive the qualified products and discharge them to the discharge belt conveyor for transportation and discharge. Preferably, the translation drive device 603 includes a translation drive cylinder, and the output part of the translation drive cylinder is fixedly connected to the qualified product discharge track and the unqualified product discharge box.

[0127] In this embodiment, a magnetizing device 500 is also included at the unloading station beside the stamping mechanism. The magnetizing device 500 is located below the workpiece grasping device 2 and is arranged between the unloading mechanism 600 and the stamping and riveting device 100. The magnetizing device 500 includes a second device body 67, an iron frame 54, a first coil winding 55 and a second coil winding 56 fixed in the iron frame 54, the first coil winding 55 and the second coil winding 56 are symmetrically installed on both sides of the second device body 67, and the second device body 67 is provided with a motor placement position 671; wherein the current directions in the first coil winding and the second coil winding are consistent.

[0128] A groove 58 is formed on the outside of the second device body 67, and a through hole 59 is provided between the groove 58 structure and the bottom surface of the motor placement position 671. A first micro switch 60 is fixed on the groove 58, and the spring of the first micro switch 60 extends upward to the bottom surface of the motor placement position 671 through the through hole 59.

[0129] The first coil winding 55 and / or the second coil winding 56 has a shell structure outside, and a limit block 61 is fixed on the shell structure. The limit block 61 is provided with an arc groove 62 that matches the shape of the product and can limit the displacement of the motor.

[0130] The magnetizing device can magnetize the inside of the motor and control the operation of the device through the first micro switch, thereby increasing the automation of the device and improving the detection and magnetizing efficiency.

[0131] In the present embodiment, it also includes a motor hole position detection device 400 located at the blanking station beside the stamping mechanism 101, and the motor hole position detection device 400 is located below the workpiece grasping device 2; the motor hole position detection device includes a first device body 51, and a detection placement position 52 is provided on the first device body 51, and a detection column 53 that matches the position of the hole 64 is retractably provided on the detection placement position 52, and a second micro switch is provided below the detection column; the spring sheet of the second micro switch is located below the detection column 53, and after the detection column 53 is pressed, the bottom of the detection column 53 moves downward to press the spring sheet of the second micro switch 65 downward, and when the detection column 53 is not subjected to external force, the bottom of the detection column 53 does not contact the spring sheet of the second micro switch 65.

[0132] The first device body 51 is provided with a cavity for the detection column 53 to pass through, and the detection column 53 located in the cavity is provided with a reset structure 63; a limit ring is fixed on the detection column 53 located in the cavity, and a reset structure 63 is provided between the limit ring and the bottom of the cavity, and the reset structure 63 includes a spring; the reset structure can also be a spring, an elastic material such as a sponge or the like.

[0133] The inner wall of the device body 51 is provided with a protruding structure 66, and the detection column 53 is arranged in the protruding structure 66. The top of the protruding structure 66 forms a detection placement position 52. The top surface of the protruding structure 66 is the bottom surface of the detection placement position 52, and the bottom surface of the protruding structure and the protrusion of the detection column 53 limit each other.

[0134] The above-mentioned detection device can detect the opening of the threaded hole of the motor through the detection column. The motor is placed in the detection position. If the threaded hole of the motor is qualified, the detection column is inserted into the threaded hole. If the threaded hole of the motor is too small or not opened, that is, the threaded hole is unqualified, the detection column will be pressed down by force, and the bottom of the detection column will contact the second micro switch, where the second micro switch can be connected to a controller 800 such as a PLC, and the PLC controller 800 can receive the signal of the second micro switch to obtain information that the motor is unqualified.

[0135] The working principle of the motor end cover automatic riveting equipment of this embodiment is based on the above-mentioned linear belt conveyor, motor axial rotation positioning device, stamping and riveting device, magnetizing device and motor hole position detection device, so that five pneumatic clamps are required to simultaneously grab the motor that has been stamped and riveted on the lower fixed seat, the motor that has been adjusted in axial rotation position, the motor to be riveted that is at the output end of the linear belt conveyor and is in a vertical state, the motor that has completed hole position detection and the motor that has completed magnetization. After that, the five pneumatic clamps are lifted, and then moved in the downward direction and then dropped, so that the motor to be riveted is transported and placed on the motor axial rotation positioning device, the motor that has been adjusted in axial rotation position is placed on the lower fixed seat, the motor that has been stamped and riveted is placed on the motor hole position detection device, the motor that has completed hole position detection is placed on the magnetizing device, and the motor that has been stamped and riveted is placed on the qualified product unloading track or the unqualified product unloading box according to the result obtained by the hole position detection device.

[0136] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. An automatic riveting device for a motor end cover, characterized in that: include: A stamping riveting device (100) comprises a stamping mechanism (101) and a stamping die (102) mounted on the stamping mechanism (101); the stamping die (102) comprises an upper die assembly (38) and a lower die assembly (39); the upper die assembly (38) comprises: an upper fixing seat (381), the upper fixing seat (381) being mounted on an upper die seat (35); a plurality of stamping knives (382) being arranged at intervals on the upper fixing seat (381); a stamping portion (382a) being adapted to the shell wall of a motor (200); and the lower die assembly (39) comprising: a lower fixing seat (391), the lower fixing seat (391) being mounted on a lower die seat (36); a motor receiving groove (391a) being arranged on the lower fixing seat (391) for positioning and placing the motor. A motor loading and unloading transport device (700) comprising a transverse displacement drive mechanism, a longitudinal displacement drive mechanism and a plurality of workpiece grasping devices (2), wherein the transverse displacement drive mechanism and the longitudinal displacement drive mechanism drive the plurality of workpiece grasping devices to perform longitudinal and transverse translation, so as to remove the riveted motor from the motor receiving groove (391a) and place the motor to be riveted into the motor receiving groove (391a); A push-pull mechanism (40), the push-pull mechanism (40) is installed beside the lower fixed seat (391), and the push-pull portion of the push-pull mechanism (40) is connected to the lower fixed seat (391) to drive the lower fixed seat (391) to move to the bottom of the workpiece grasping device or to the bottom of the upper fixed seat (381); The upper die assembly (38) further comprises a discharge spring (383) and an upper pressure column (384) abutting against the lower end of the discharge spring (383); the punching knife (382) is arranged beside the upper pressure column (384); a receiving cavity (381a) is arranged in the upper fixed seat (381); the discharge spring (383) is installed in the receiving cavity (381a); the upper pressure column (384) is slidably arranged in the receiving cavity (381a) and is partially arranged outside the upper fixed seat (381); the upper end of the discharge spring (383) abuts against the upper inner wall of the receiving cavity (381a); or the upper end of the discharge spring (383) passes through the receiving cavity (381a) and is inserted into the receiving hole of the upper die seat (35), and is connected to or abuts against the upper inner wall of the receiving hole; It also includes a motor axial rotation positioning device (300) located at a loading station next to the stamping mechanism, the motor axial rotation positioning device (300) including a positioning seat (26), a rotating mechanism (20) and a positioning detection mechanism (21), a rotating member (22) being mounted on the output shaft of the rotating mechanism (20), the rotating member (22) being axially connected to the motor (200), the positioning detection mechanism (21) including a horizontal moving mechanism (23), a positioning block (24) and a first position sensor (25), the positioning block (24) being telescopically connected to the horizontal moving mechanism (23), the positioning block (24) being arranged close to the rotating member (22), the positioning block (24) being adapted to be inserted into a notch (201) on a side wall of the motor (200), and the first position sensor (25) being arranged close to a detection portion of the positioning block (24); The rotating member (22) is rotatably mounted on the positioning seat (26); a positioning ring (27) is also mounted on the positioning seat (26); the rotating member (22) is mounted in or on the positioning ring (27); and the motor (200) is accommodated in the positioning ring (27) or in the rotating member (22); The horizontal movement mechanism (23) comprises a driving cylinder (231) and a support plate (232); the driving cylinder (231) is mounted on a positioning seat (26); the support plate (232) is arranged on an output shaft of the driving cylinder (231); and an elastic telescopic member (233) is slidably mounted between the positioning block (24) and the support plate (232); The positioning detection mechanism (21) is mounted on the positioning seat (26) or is mounted on the positioning seat (26) via a height adjustment mechanism (29); The elastic telescopic member (233) comprises a first spring (234) and a guide column (235), the first spring (234) being sleeved on the guide column (235), the support plate (232) being mounted with a first guide plate (236), the first guide plate (236) being provided with a guide hole (236a), the first spring (234) being arranged between the first guide plate (236) and the positioning block (24), the positioning block (24) being slidably mounted on the support plate (232), the positioning block (24) being mounted with a guide column (235) movably inserted into the guide hole (236a), and the first position sensor (25) being mounted on the first guide plate (236); the positioning detection mechanism (21) further comprises a slide seat (28), the support plate (232) being slidably mounted on the slide seat (28), and the slide seat (28) being mounted on the positioning seat (26); The elastic telescopic member (233) comprises a first spring (234); the support plate (232) is a vertical plate; a mounting hole (24a) is vertically penetrated on the positioning block (24); a protrusion (24b) is provided on a side wall of the mounting hole (24a); the vertical plate is movably inserted into the mounting hole (24a); and the first spring (234) is arranged between the vertical plate and the protrusion (24b); The positioning detection mechanism (21) further comprises a slide seat (28), the positioning block (24) is slidably mounted on the slide seat (28), the support plate (232) is provided with a guide shaft (237), the guide shaft (237) is slidably mounted on the slide seat (28), the first position sensor (25) and the driving cylinder (231) are mounted on the slide seat (28), and the slide seat (28) is mounted on the positioning seat (26); It also includes a motor loading and conveying mechanism (901) for riveting a motor located at a loading station next to the punching mechanism (101), and a motor axial rotation positioning device (300) is arranged between the motor loading and conveying mechanism (901) for riveting a motor and a lower die assembly (39) of the punching and riveting device (100); The device also includes a magnetizing device (500) located at a blanking station beside the punching mechanism (101); the magnetizing device (500) is located below the workpiece grasping device (2) and is arranged between the blanking mechanism (600) and the punching and riveting device (100); the magnetizing device (500) includes a second device body (67), an iron frame (54), a first coil winding (55) and a second coil winding (56) fixed in the iron frame (54); the first coil winding (55) and the second coil winding (56) are symmetrically mounted on both sides of the second device body (67); and the second device body (67) is provided with a motor placement position (671); A groove (58) is formed on the outside of the second device body (67); a through hole (59) is provided between the groove (58) structure and the bottom surface of the motor placement position (671); a first micro switch (60) is fixed on the groove (58); and a spring sheet of the first micro switch (60) extends upward from the bottom surface of the motor placement position (671) through the through hole (59); The first coil winding (55) and / or the second coil winding (56) has a shell structure outside, a limit block (61) is fixed on the shell structure, and an arc groove (62) matching the shape of the product is formed on the limit block (61); It also includes a motor hole position detection device (400) located at a blanking station beside the stamping mechanism (101), and the motor hole position detection device (400) is located below the workpiece grasping device (2); the motor hole position detection device (400) includes a first device body (51), and a detection placement position (52) is provided on the first device body (51), and a detection column (53) that matches the position of the hole (64) is retractably provided on the detection placement position (52), and a second micro switch is provided below the detection column; the spring sheet of the second micro switch is located below the detection column (53), and when the detection column (53) is pressed, the bottom of the detection column (53) moves downward so that the spring sheet of the second micro switch (65) is pressed downward, and when the detection column (53) is not subjected to external force, the bottom of the detection column (53) does not contact the spring sheet of the second micro switch (65); The first device body (51) is provided with a cavity for the detection column (53) to pass through, and the detection column (53) located in the cavity is provided with a reset structure (63) on its outer cover; A limit ring is fixed on the detection column (53) located in the cavity, a reset structure (63) is sleeved between the limit ring and the bottom of the cavity, and the reset structure (63) comprises a spring; The inner wall of the first device body (51) is provided with a protruding structure (66), the detection column (53) is arranged in the protruding structure (66), the top of the protruding structure (66) forms a detection placement position (52), the top surface of the protruding structure (66) is the bottom surface of the detection placement position (52), and the bottom surface of the protruding structure and the protruding block of the detection column (53) are mutually limited.

2. The motor end cover automatic riveting device according to claim 1, characterized in that: An upper pressure plate (387) is provided at the lower end of the upper pressure column (384), and a plurality of pressure blocks (388) are provided at intervals along the circumferential direction of the upper pressure plate (387), and a limiting groove (389) that matches the motor housing is formed between the pressure blocks (388) and the outer wall of the upper pressure plate (387); a through groove (387a) facing the punching knife (382) is provided on the side wall of the upper pressure plate (387), and the inner side of the punching knife (382) is inserted into the through groove (387a).

3. The motor end cover automatic riveting device according to claim 1 or 2, characterized in that: The invention also includes a lower die base (36), wherein a slide groove (36a) is provided on the lower die base (36), and the lower fixed base (391) is slidably arranged on the slide groove (36a). A push-pull mechanism (40) is installed on the lower die base (36), and the lower fixed base (391) is connected to the push-pull mechanism (40). A positioning structure (392) for limiting the positioning of the motor is provided in the motor accommodating groove (391a).

4. The motor end cover automatic riveting device according to claim 3, characterized in that: The positioning structure is inserted into the motor accommodating groove (391a), and a micro switch (393) is arranged below the positioning structure (392).

5. The motor end cover automatic riveting equipment according to claim 1, characterized in that: It also includes a flipping mechanism arranged on one side of the motor feeding and conveying mechanism (901) to be riveted, the flipping mechanism comprising a rotary cylinder (10) and a gripping structure (11) fixed on the output shaft of the rotary cylinder (10); It also comprises a fourth plate body (12), a third slide rail being fixed on the fourth plate body (12), the rotary cylinder (10) being fixed on a third slider of the third slide rail, a third cylinder (14) being fixed on the fourth plate body (12), and an output end of the third cylinder (14) being fixed to the rotary cylinder (10).

6. The motor end cover automatic riveting equipment according to claim 1, characterized in that: It also includes a material unloading mechanism (600) located at the unloading station beside the punching mechanism (101), the material unloading mechanism (600) including a translation drive device (603), a qualified product unloading track (601) and a unqualified product unloading box (602), the qualified product unloading track (601) and the unqualified product unloading box (602) are both installed on the translation drive device (603), and the qualified product unloading track (601) and the unqualified product unloading box (602) are both located below the workpiece grasping device (2).

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