Automatic assembly structure of motor rotor front cover assembly and base rear cover assembly

Abstract

The present invention relates to the technical field of automatic motor press-fitting equipment, and more specifically, to an automatic assembly structure for a motor rotor front end cover assembly and a base rear end cover assembly, comprising an equipment body, an automatic assembly line, a product tray carrier, a lifting and unloading mechanism, a Z-axis press-fitting mechanism, an X-axis positioning and transplanting mechanism, and a robot. The device of the present invention is highly adaptable and flexible, and is suitable for a variety of motor series. It is less restricted by the size and weight of the motor. Each series of products has many models to distinguish the size of the stator base diameter, base length, and rear end cover style. The present invention meets actual production needs by adjusting the clamping stroke of the stator three-claw cylinder, the screw module model and stroke of the Z-axis servo module, and the size of the corresponding positioning pin of the product.

Description

Technical Field

[0001] The invention relates to the technical field of motor automatic press-fitting equipment, in particular to an automatic assembly structure of a motor rotor front end cover assembly and a base rear end cover assembly. Background Art

[0002] At present, the assembly forms of the front end cover assembly of the motor rotor and the rear end cover assembly of the machine base in traditional industrial production are mainly as follows: after the stator machine base and the rear end cover are bolted, the rear end cover is placed vertically downward, the rotor is manually inserted into the stator of the machine base, and the upper end of the rotor is struck with a rubber hammer to make the bearing on one side of the rotor rear end cover and the bearing chamber of the rear end cover completely assembled in place, and then the front end cover is taken and inserted from the upper end of the rotor, and the front end cover is struck with a rubber hammer to make the bearing on one side of the rotor front end cover and the bearing chamber of the front end cover completely assembled in place, and finally the bolts are manually tightened to complete the overall assembly; the finished rotor is manually placed horizontally into the motor stator machine base, and the front end cover and the rear end cover are manually pre-installed on the shaft extending from both ends of the rotor, and guide rods are placed to guide the front and rear end cover mounting holes to align with the threaded holes of the stator machine base, and air pressure or hydraulic devices are used to move inward at the same time in the horizontal direction to complete the assembly of the front and rear end covers, the stator machine base and the rotor.

[0003] The two methods in the prior art have the following defects:

[0004] 1. Manual loading and unloading is required, which is inefficient. When the rotor is heavy, workers are at risk of injury during handling, which wastes human resources.

[0005] 2. The circumferential rotation of the end cover will cause the through hole on the end cover to be unable to align with the threaded hole on the stator base, affecting the subsequent process, that is, the tightening operation of the end cover and the stator base bolts. Manually use a rubber hammer to knock and correct it before inserting the bolts and tightening it, or pre-place a guide rod to guide the alignment. After the press-fitting is completed, the guide rod is removed and the bolts are inserted and tightened. This is also inefficient and wastes human resources. Summary of the Invention

[0006] In view of the above-mentioned deficiencies, an object of the present invention is to provide an automatic assembly structure involving a front end cover assembly of a motor rotor and a rear end cover assembly of a base.

[0007] The present invention provides the following technical solutions:

[0008] An automatic assembly structure for a motor rotor front end cover assembly and a base rear end cover assembly, including a device body;

[0009] An automatic assembly line, the automatic assembly line being horizontally arranged through the equipment body;

[0010] A product tray carrier, which is used to carry the rear end cover assembly of the machine base and can move horizontally along with the automatic assembly line;

[0011] A lifting and unloading mechanism is installed on the equipment body and is located below the product tray carrier, and is used to lift the rear end cover assembly of the machine base to a certain height away from the automatic assembly line and unload the force;

[0012] A Z-axis press-fitting mechanism, located on the equipment body directly above the lifting and unloading mechanism, for pressing the motor rotor front end cover assembly into the base rear end cover assembly;

[0013] An X-axis positioning and transplanting mechanism, located between the Z-axis press-fitting mechanism and the automatic assembly line, with its length perpendicular to the length of the automatic assembly line, for moving the motor rotor front end cover assembly to the Z-axis axis center position of the Z-axis press-fitting mechanism;

[0014] And a robot, which is located on one side of the equipment body. The robot head clamp takes out the rotor front end cover component produced on the previous automatic assembly line and puts it into the X-axis positioning and transplanting mechanism.

[0015] As an optimal technical solution for the automatic assembly structure of a motor rotor front end cover assembly and a machine base rear end cover assembly, the product pallet carrier includes: a carrier base plate, a positioning guide sleeve, a rear end cover support block, a rear end cover positioning pin and an RFID chip; the carrier base plate is installed on an automatic assembly line, and four positioning guide sleeves are centrally symmetrically arranged on the carrier base plate, and the positioning guide sleeves are used for positioning and steering the product pallet carrier, and the upper end of the carrier base plate is located between the positioning guide sleeves and a rear end cover support block is installed, and a rear end cover positioning pin is installed on the rear end cover support block, and the rear end cover positioning pin is used to prevent the rotation of the motor rear end cover, and an RFID chip is installed at the right end of the carrier base plate, and the RFID chip is used for entering product information and automatic reading of the automatic assembly line.

[0016] As an optimal technical solution for the automatic assembly structure of the front end cover assembly of the motor rotor and the rear end cover assembly of the machine base, the lifting and unloading mechanism includes a supporting base plate, a Z-axis lifting cylinder, a pallet carrier support plate, a pallet carrier positioning pin, an upper unloading support block, a lower unloading support block, a horizontal extension cylinder, a first guide sleeve guide rod and a first linear slider; the supporting base plate is installed on the equipment body, and a Z-axis lifting cylinder is installed in the center thereof, and a pallet carrier support plate is installed at the output end of the Z-axis lifting cylinder, and four pallet carrier positioning pins are symmetrically arranged on the upper end of the pallet carrier support plate. The pin is used to position the four positioning guide sleeves on the product pallet carrier. Two upper unloading support blocks are symmetrically arranged at the lower end center of the pallet carrier support plate. Two first linear sliders are symmetrically and slidingly installed on the support base plate. The first linear slider is installed with a lower unloading support block. The lower end surface of the support base plate is installed with a horizontal extension cylinder. The output end of the horizontal extension cylinder is connected to the corresponding first linear slider. Four first guide sleeve guide rods are symmetrically installed on the support base plate. The upper end surface of the first guide sleeve guide rod is connected to the pallet carrier support plate, and the lower end of the first guide sleeve guide rod is connected to the flat plate.

[0017] As an optimal technical solution for the automatic assembly structure of a motor rotor front end cover assembly and a machine base rear end cover assembly, the X-axis positioning and transplanting mechanism includes: a rotor base, a rotor support plate, a sensor, a positioning pin, a pin mounting plate, a pin push-out cylinder, a Z-direction servo module, a connecting plate, an X-axis servo module, a second linear slide and a fixed plate; the rotor base and the sensor are mounted on the rotor support plate, the positioning pin is mounted on the pin push-out cylinder through the pin mounting block, the pin push-out cylinder is mounted on the connecting plate through the Z-direction servo module, the connecting plate is connected to the rotor support plate and is driven by the X-axis servo module to move along the second linear slide, and the X-axis servo module and the second linear slide are mounted on the fixed plate.

[0018] As an optimal technical solution for the automatic assembly structure of the front end cover assembly of the motor rotor and the rear end cover assembly of the machine base, the Z-axis press-fitting mechanism includes: a rotor clamping three-claw, a shaft end ejector, a shaft end ejector telescopic sleeve, an assembly press-fitting shaft, a three-claw cylinder, a floating connecting plate, a rotor floating module, a front end cover locating pin, a locating pin mounting block, a locating pin horizontal cylinder, a locating pin vertical cylinder, a locating pin servo module, a servo fixing plate, a mechanism mounting plate, a Z-axis servo module, a second guide sleeve guide rod and a Z-axis press-fitting mechanism fixing plate; the rotor clamping three-claw is fixed to the bottom of the floating connecting plate by the three-claw cylinder, the assembly press-fitting shaft is connected to the bottom of the shaft end ejector telescopic sleeve, and the shaft end ejector telescopic sleeve is fixed to the bottom of the floating connecting plate through the three-claw cylinder, the shaft end ejector is installed inside the shaft end ejector telescopic sleeve, and the shaft end ejector telescopic sleeve is equipped with a spring. The shaft end ejector can be compressed under force. The floating connecting plate is installed under the rotor floating module. The rotor floating module is provided with a center lock. In the initial state, the rotor floating module is in the center lock state and cannot move in the plane. When the center lock is opened, the rotor floating module can move freely in the XY direction of the plane by 0-2mm. The rotor floating module is installed on the mechanism mounting plate and is connected to the Z-axis servo module above. The Z-axis servo module is installed at the upper end of the Z-axis press-fitting mechanism fixing plate and is driven by the Z-axis servo module to perform lifting movement along the second guide sleeve guide rod. One side of the mechanism mounting plate is connected to the locating pin servo module through the servo fixing plate. The front end cover locating pin is installed in the locating pin mounting block. The locating pin mounting block is connected to the head of the locating pin horizontal cylinder. The locating pin horizontal cylinder is installed on the head of the locating pin vertical cylinder. The locating pin vertical cylinder is installed on the locating pin servo module.

[0019] The beneficial effects of the present invention are:

[0020] 1. Highly automated procedures, no manual operation required;

[0021] 2. Automatic assembly line operation, high work efficiency, improve enterprise production efficiency;

[0022] 3. The production process of the entire process is stable, improving product consistency;

[0023] 4. Suitable for mass production, reducing enterprise production costs;

[0024] 5. Both the front cover and the stator base are positioned with positioning pins to prevent rotation, which is beneficial for automatic tightening of bolts in subsequent workstations;

[0025] 6. Strong adaptability and flexibility, suitable for various motor series, less restricted by motor size and weight. Each series of products has many models with different stator base diameters, base lengths, and rear end cover styles. The present invention meets actual production needs by adjusting the clamping stroke of the stator three-jaw cylinder, the screw module model and stroke of the Z-axis servo module, and the corresponding positioning pin size of the product.

[0026] 7. Strong compatibility. Once the target product series is determined, the vertical flexible fully automatic press-fitting process of the motor stator base and the rear end cover of the present invention can meet the production requirements of most models of the series of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0028] Figure 1 Schematic diagram of the overall structure of the device of the present invention;

[0029] Figure 2 This is a structural diagram of the product pallet carrier;

[0030] Figure 3 It is a structural diagram of the jacking and unloading mechanism;

[0031] Figure 4 It is a structural diagram of the X-axis positioning and transplanting mechanism;

[0032] Figure 5 It is a structural diagram of the Z-axis press-fitting mechanism;

[0033] Markings in the attached figure: 1. Equipment body; 2. Automatic assembly line; 3. Product tray carrier; 4. Lifting and unloading mechanism; 5. Z-axis pressing mechanism; 6. X-axis positioning and transplanting mechanism; 7. Robot;

[0034] 301, carrier base plate; 302, positioning guide sleeve; 303, rear end cover support block; 304, rear end cover positioning pin; 305, RFID chip;

[0035] 401, support base; 402, Z-axis lifting cylinder; 403, pallet carrier support plate; 404, pallet carrier positioning pin; 405, upper unloading force support block; 406, lower unloading force support block; 407, horizontal extension cylinder; 408, first guide sleeve and guide rod; 409, first linear slider;

[0036] 501, rotor clamping three-jaw; 502, shaft end ejector; 503, shaft end ejector telescopic sleeve; 504, final assembly press shaft; 505, three-jaw cylinder; 506, floating connecting plate; 507, rotor floating module; 508, front end cover locating pin; 509, locating pin mounting block; 510, locating pin horizontal cylinder; 511, locating pin vertical cylinder; 512, locating pin servo module; 513, servo fixing plate; 514, mechanism mounting plate; 515, Z-axis servo module; 516, second guide sleeve and guide rod; 517, Z-axis press mechanism fixing plate;

[0037] 601. Rotor base; 602. Rotor support plate; 603. Sensor; 604. Positioning pin; 605. Pin mounting plate; 606. Pin ejection cylinder; 607. Z-axis servo module; 608. Connecting plate; 609. X-axis servo module; 610. Second linear guide rail; 611. Fixing plate. DETAILED DESCRIPTION

[0038] The following is a clear and complete description of the concept, specific structure and technical effects of the present invention in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other in the absence of conflict. It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to another feature, or it can be indirectly fixed or connected to another feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the various components of the present invention in the drawings.

[0039] Please refer to Figure 1As shown, the automatic assembly structure of the motor rotor front end cover assembly and the base rear end cover assembly includes an equipment body 1; an automatic assembly line 2, the automatic assembly line 2 is horizontally arranged in the equipment body 1; a product tray carrier 3, the product tray carrier 3 is used to carry the base rear end cover assembly, and it can move horizontally with the automatic assembly line 2; a lifting and unloading mechanism 4, the lifting and unloading mechanism 4 is installed on the equipment body 1 and is located below the product tray carrier 3, and is used to lift the base rear end cover assembly away from the automatic assembly line 2 to a certain height and unload the force; a Z-axis pressing mechanism 5, the Z-axis pressing mechanism 5 is in the lifting and unloading mechanism The device body 1 directly above the mechanism 4 is used to press the front end cover assembly of the motor rotor into the rear end cover assembly of the machine base; the X-axis positioning and transplanting mechanism 6, the X-axis positioning and transplanting mechanism 6 is located between the Z-axis pressing mechanism 5 and the automatic assembly line 2, and its length direction is perpendicular to the length direction of the automatic assembly line 2, and is used to move the front end cover assembly of the motor rotor to the Z-axis axis center position of the Z-axis pressing mechanism 5; and the robot 7, the robot 7 is located on one side of the device body 1, and the robot 7 head clamp takes out the rotor front end cover assembly produced on the previous automatic assembly line 2 and puts it into the X-axis positioning and transplanting mechanism 6. The robot 7 head clamp takes out the rotor front end cover assembly produced on the previous automatic assembly line 2 and puts it into the X-axis positioning and transferring mechanism 6. The internal positioning pin 604 of the X-axis positioning and transferring mechanism 6 is inserted into one of the three holes of the rotor front end cover to position it to prevent the front end cover from rotating on the rotor during the movement. The robot 7 head clamp opens and exits to return to its original position. The X-axis positioning and transferring mechanism 6 moves horizontally to move the rotor front end cover to the Z-axis axis center position of the Z-axis pressing mechanism 5. The product tray carrier 3 on the automatic assembly line 2 brings the stator base and rear end cover pressed by the previous workstation to the jacking and unloading mechanism 4 position of this equipment. The jacking and unloading mechanism 4 lifts it away from the automatic assembly line 2 to a certain height and unloads the force. At this time, the stator base rear end cover on the product tray carrier 3 is also in At the Z-axis center position of the Z-axis pressing mechanism 5, the Z-axis pressing mechanism 5 descends and its internal three-claw clamping mechanism moves to clamp the rotor shaft body on the X-axis positioning and transplanting mechanism 6. Its internal front end cover positioning pin 508 moves to insert into one of the three holes of the front end cover to position it to prevent the front end cover from rotating on the rotor during the pressing process. The Z-axis pressing mechanism 5 clamps the rotor shaft body and positions the front end cover to lift it away from the X-axis positioning and transplanting mechanism 6 to maintain a safe height; the X-axis positioning and transplanting mechanism 6 is reset; the Z-axis pressing mechanism 5 descends with the rotor front end cover, and the rotor front end cover is inserted into the stator base rear end cover on the product tray carrier 3 below, and finally pressed into place; the Z-axis pressing mechanism 5 is reset, the lifting and unloading mechanism 4 is reset, and the product tray carrier 3 falls into the automatic assembly line 2 to continue to flow to the next workstation.

[0040] Please refer to Figure 2As shown, the product tray carrier 3 includes: a carrier base plate 301, a positioning guide sleeve 302, a rear end cover support block 303, a rear end cover positioning pin 304 and an RFID chip 305; the carrier base plate 301 is installed on the automatic assembly line 2, and four positioning guide sleeves 302 are centrally symmetrically arranged on the carrier base plate 301. The upper end of the carrier base plate 301 is located between the positioning guide sleeves 302 and the rear end cover support block 303 is installed. The rear end cover positioning pin 304 is installed on the rear end cover support block 303. The rear end cover positioning pin 304 is used to prevent the rotation of the rear end cover of the motor. The right end of the carrier base plate 301 is installed with an RFID chip 305. This product pallet carrier 3 is compatible with and can meet the placement of two series of rear end covers. During production, one series of materials only needs to be placed according to the order requirements. The carrier base plate 301 automatically flows on the automatic assembly line 2 with the materials on it. Four centrally symmetrical positioning guide sleeves 302 are set on the carrier positioning base plate for positioning and steering the product pallet carrier 3. During operation, the robot 7 places the rear end cover required for production on the rear end cover positioning tooling. As shown in the figure, two series of rear end covers of different sizes can be placed. The rear end cover uses a positioning pin positioning through hole to prevent rotation, and then the product information is entered into the RFID chip 305. The automatic assembly line 2 automatically detects and reads the content of the RFID chip 305, and releases the product pallet carrier 3 to flow to the next workstation.

[0041] Please refer to Figure 3As shown, the lifting and unloading mechanism 4 includes a supporting base plate 401, a Z-axis lifting cylinder 402, a pallet carrier support plate 403, a pallet carrier positioning pin 404, an upper unloading force support block 405, a lower unloading force support block 406, a horizontal extension cylinder 407, a first guide sleeve guide rod 408 and a first linear slider 409; the supporting base plate 401 is installed on the equipment body 1, and the Z-axis lifting cylinder 402 is installed in the center thereof, and the output end of the Z-axis lifting cylinder 402 is installed with a pallet carrier support plate 403, and four pallet carrier positioning pins 404 are symmetrically arranged on the upper end of the pallet carrier support plate 403, and the pallet carrier positioning pins 404 are used to position the four on the product pallet carrier 3 The positioning guide sleeve 302, two upper unloading support blocks 405 are symmetrically arranged at the center of the lower end of the pallet carrier support plate 403, two first linear sliders 409 are symmetrically slidably installed on the support base plate 401, and the first linear slider 409 is installed with a lower unloading support block 406, and the lower end surface of the support base plate 401 is installed with a horizontal extension cylinder 407, and the output end of the horizontal extension cylinder 407 is connected to the corresponding first linear slider 409, and four first guide sleeve guide rods 408 are symmetrically installed on the support base plate 401, and the upper end surface of the first guide sleeve guide rod 408 is connected to the pallet carrier support plate 403, and the lower end of the first guide sleeve guide rod 408 is connected to the flat plate. Pallet carrier positioning pins 404 are mounted on the pallet carrier support plate 403 to position the four positioning guide sleeves 302 on the product pallet carrier 3. Upper unloading support blocks 405 are mounted on the back of the pallet carrier support plate 403 and are connected to the Z-axis lift cylinder 402. Lower unloading support blocks 406 are mounted on a linear slide, which is connected to both ends of the horizontal extension cylinder 407. The lift unloading mechanism 4 is installed inside the device body 1. Once the product pallet carrier 3 is in place, the device's internal RFID reader reads the information from the RFID chip 305 and sends the information to the PLC for processing.The Z-axis lifting cylinder 402 extends, driving the pallet carrier support plate 403, the pallet carrier positioning pin 404, and the upper unloading force support block 405 to rise vertically along the guide first guide sleeve guide rod 408. The pallet carrier positioning pin 404 is positioned to the four positioning guide sleeves 302 on the product pallet carrier 3, and lifts it away from the automatic assembly line 2 to a certain height. The horizontal extension cylinder 407 extends, driving the first linear slider 409 connected to both ends of the cylinder and the lower unloading force support block 406 to open outwards. At this time, the lower unloading force The support block 406 moves to the position directly below the upper unloading force support block 405, and the reverse unloading force of the Z-axis lifting cylinder 402 is caused by gravity to make the upper and lower unloading force support blocks 406 contact each other, so that the force on the upper pallet carrier support plate 403 during press-fitting is transmitted from the upper unloading force support block 405 to the lower unloading force support block 406, and then to the support base plate 401, and then to the inside of the equipment body 1. The above mechanism is used to lift up the product pallet carrier 3 and separate it from the automatic line, so as to avoid the product pallet carrier 3 being subjected to large pressure and causing damage to the automatic line.

[0042] Please refer to Figure 4 As shown, the X-axis positioning and transplanting mechanism 6 includes: a rotor base 601, a rotor support plate 602, a sensor 603, a positioning pin 604, a pin mounting plate 605, a pin pushing cylinder 606, a Z-direction servo module 607, a connecting plate 608, an X-axis servo module 609, a second linear slide 610 and a fixed plate 611; the rotor base 601 and the sensor 603 are mounted on the rotor support plate 602, the positioning pin 604 is mounted on the pin pushing cylinder 606 through the pin mounting block, the pin pushing cylinder 606 is mounted on the connecting plate 608 through the Z-direction servo module 607, the connecting plate 608 is connected to the rotor support plate 602 and is driven by the X-axis servo module 609 to move along the second linear slide 610, and the X-axis servo module 609 and the second linear slide 610 are mounted on the fixed plate 611. The head fixture of robot 7 takes the rotor front end cover assembly produced on the previous automatic assembly line 2 and puts it into the rotor base 601 on the rotor support plate 602. As shown in the figure, there are two types of rotor bases 601. The manipulator identifies the type of rotor front end cover assembly grabbed and places it in the corresponding position. At this time, the sensor 603 detects the rotor material signal, and the action pin pushing cylinder 606 is actuated to push out the pin mounting plate 605 and the positioning pin 604. As shown in the figure, there are two positioning pins 604 corresponding to the front end cover positioning holes of the two types of rotor front end cover assemblies placed above. The Z-axis servo module 607 descends a set distance and inserts the positioning pin 604 into the front end cover positioning hole. The head fixture of robot 7 opens and pushes it back to its original position. The X-axis servo module 609 drives the entire mechanism to move along the second linear slide rail 610, and moves the axis of the rotor front end cover assembly to just below the Z-axis axis of the Z-axis pressing mechanism 5.

[0043] Please refer to Figure 5As shown, the Z-axis press-fitting mechanism 5 includes: a rotor clamping three-claw 501, a shaft end ejector 502, a shaft end ejector telescopic sleeve 503, an assembly press-fitting shaft 504, a three-claw cylinder 505, a floating connecting plate 506, a rotor floating module 507, a front end cover locating pin 508, a locating pin mounting block 509, a locating pin horizontal cylinder 510, a locating pin vertical cylinder 511, a locating pin servo module 512, a servo fixing plate 513, a mechanism mounting plate 514, a Z-axis servo module 515, a second guide sleeve guide rod 516, and And the Z-axis press-fitting mechanism fixed plate 517; the rotor clamping three-claw 501 is fixed below the floating connecting plate 506 through the three-claw cylinder 505, the final assembly press-fitting shaft 504 is connected below the shaft end ejector telescopic sleeve 503, and the shaft end ejector telescopic sleeve 503 is fixed below the floating connecting plate 506 through the three-claw cylinder 505, the shaft end ejector 502 is installed inside the shaft end ejector telescopic sleeve 503, and the shaft end ejector telescopic sleeve 503 is equipped with a spring so that the shaft end ejector 502 can be The floating connecting plate 506 is installed under the rotor floating module 507. The rotor floating module 507 is provided with a center lock. In the initial state, the rotor floating module 507 is in the center lock state and cannot move in the plane. When the center lock is opened, the rotor floating module 507 can move freely in the plane XY direction by 0-2mm. The rotor floating module 507 is installed on the mechanism mounting plate 514 and is connected to the Z-axis servo module 515 above. The Z-axis servo module 515 is installed on the Z-axis press-fit mechanism fixed The upper end of the fixed plate 517 is driven by the Z-axis servo module 515 to perform lifting motion along the second guide sleeve guide rod 516. One side of the mechanism mounting plate 514 is connected to the locating pin servo module 512 through the servo fixing plate 513. The front end cover locating pin 508 is installed in the locating pin mounting block 509. The locating pin mounting block 509 is connected to the head of the locating pin horizontal cylinder 510. The locating pin horizontal cylinder 510 is installed on the head of the locating pin vertical cylinder 511. The locating pin vertical cylinder 511 is installed on the locating pin servo module 512.After the rotor front end cover assembly moves to the point directly below the Z-axis axis, the locating pin servo module 512 is actuated to move the front end cover locating pin 508 to the set position. Since the type of the rotor front end cover assembly is known, the locating pin horizontal cylinder 510 and the locating pin vertical cylinder 511 are actuated to place the locating pin directly above the corresponding type of front end cover locating hole. After the rotor front end cover assembly moves to the point directly below the Z-axis axis, the three-claw cylinder 505 is actuated to open the rotor clamping three-claw 501. The Z-axis servo module 515 drives the entire mechanism to descend to the safety distance set above the rotor front end cover assembly, and then slowly descends again so that the shaft end ejector 502 slowly contacts the center positioning of the rotor top. After the shaft end ejector 502 is compressed to a set distance, the front end cover locating pin 508 has penetrated the locating hole of the front end cover, and the rotor clamping claws 501 have also exceeded the set distance of the rotor shaft end face. At this time, the three-claw cylinder 505 moves to close the rotor clamping claws 501, so that the three-claw claws clamp the rotor shaft body, and the Z-axis servo module 515 drives the entire mechanism to rise. The rotor clamping claws 501 clamp the rotor front end cover assembly to lift it out of the X-axis positioning and transplanting mechanism 6 and maintain a safe height. The X-axis servo module 609 moves to drive the X-axis positioning and transplanting mechanism 6 to reset, and the Z-axis servo module 515 drives the entire mechanism to descend and descend to the rear end cover of the stator base. The Z-axis servo module 515 drives the entire mechanism to continue to descend, so that the lower end bearing of the rotor front end cover assembly and the rotor shaft body are slowly inserted into the stator until the lower end bearing contacts the bearing chamber of the rear end cover. The servo module control module receives the torque feedback and reaches the set value, stops the descent of the Z-axis servo module 515, and the three-claw cylinder 505 opens the rotor clamping claws 501, so that the three-claw claw clip is separated from the rotor shaft body. The servo module 515 descends again. Because the end face of the final assembly press-fitting shaft 504 is 2mm lower than the end face of the rotor clamping three-claw 501 claw, the final assembly press-fitting shaft 504 first contacts the front end cover during the descending process, and presses the front end cover to press the front end cover and the stator base into place. Because the front end cover is positioned by the front end cover locating pin 508 during the pressing process and cannot be rotated, the installation space of the front end cover after pressing can match the threaded hole on the stator base into place. The Z-axis servo module 515 is lifted back to its original position, the locating pin servo module 512 and the locating pin moving cylinder are reset, the jacking and unloading mechanism 4 is reset, and the product tray carrier 3 falls into the automatic assembly line 2 and continues to flow to the next workstation.

[0044] The automatic assembly equipment involved in the present invention is controlled by PLC, and all action instructions and signal interactions are received and issued by PLC; it also includes an MES system, which writes the current product information into RFID. After the equipment reads the RFID product information, it performs production according to the corresponding parameters; it also includes an authority management system, which is used to set the authority to operate the equipment. Only authorized and registered personnel can operate it. The installation of the authority management system improves the safety of equipment operation.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. The automatic assembly structure of the motor rotor front cover assembly and the base rear cover assembly is characterized by: include Device body (1); An automatic assembly line (2), the automatic assembly line (2) being horizontally arranged through the equipment body (1); A product tray carrier (3), the product tray carrier (3) is used to carry the rear end cover assembly of the machine base, and can move horizontally along with the automatic assembly line (2); A lifting and unloading mechanism (4), the lifting and unloading mechanism (4) is installed on the equipment body (1) and is located below the product tray carrier (3), and is used to lift the rear end cover assembly of the machine base to a certain height away from the automatic assembly line (2) and unload the force; A Z-axis press-fitting mechanism (5), the Z-axis press-fitting mechanism (5) being located on the equipment body (1) directly above the lifting and unloading mechanism (4), and being used for pressing the front end cover assembly of the motor rotor into the rear end cover assembly of the machine base; An X-axis positioning and transplanting mechanism (6), the X-axis positioning and transplanting mechanism (6) is located between the Z-axis pressing mechanism (5) and the automatic assembly line (2), and its length direction is perpendicular to the length direction of the automatic assembly line (2), and is used to move the motor rotor front end cover assembly to the Z-axis axis center position of the Z-axis pressing mechanism (5); and a robot (7), the robot (7) being located on one side of the equipment body (1), and the robot (7) using a head fixture to take out a rotor front end cover assembly produced on a previous automatic assembly line (2) and place it into an X-axis positioning and transplanting mechanism (6).

2. The automatic assembly structure of the motor rotor front end cover assembly and the base rear end cover assembly according to claim 1 is characterized in that: The product tray carrier (3) comprises: a carrier base plate (301), a positioning guide sleeve (302), a rear end cover support block (303), a rear end cover positioning pin (304) and an RFID chip (305); the carrier base plate (301) is installed on an automatic assembly line (2), and four positioning guide sleeves (302) are centrally symmetrically arranged on the carrier base plate (301). The positioning guide sleeves (302) are used for positioning and steering the product tray carrier (3). A rear end cover support block (303) is installed between the upper end of the plate (301) and the positioning guide sleeve (302). A rear end cover positioning pin (304) is installed on the rear end cover support block (303). The rear end cover positioning pin (304) is used to prevent the rotation of the rear end cover of the motor. An RFID chip (305) is installed at the right end of the carrier base plate (301). The RFID chip (305) is used for entering product information and automatically reading the automatic assembly line (2).

3. The automatic assembly structure of the motor rotor front end cover assembly and the base rear end cover assembly according to claim 2 is characterized in that: The lifting and unloading mechanism (4) comprises a supporting base plate (401), a Z-axis lifting cylinder (402), a pallet carrier supporting plate (403), a pallet carrier positioning pin (404), an upper unloading force supporting block (405), a lower unloading force supporting block (406), a horizontal extension cylinder (407), a first guide sleeve guide rod (408) and a first linear slider (409); the supporting base plate (401) is mounted on the equipment body (1), and a Z-axis lifting cylinder (402) is mounted in the center thereof, a pallet carrier supporting plate (403) is mounted on the output end of the Z-axis lifting cylinder (402), and four pallet carrier positioning pins (404) are symmetrically arranged on the upper end of the pallet carrier supporting plate (403), and the pallet carrier positioning pins (404) are used to position the product pallet carrier (3) on the pallet carrier (3). The four positioning guide sleeves (302) are symmetrically provided with two upper unloading support blocks (405) at the lower end of the pallet carrier support plate (403); two first linear sliders (409) are symmetrically slidably installed on the support base plate (401); a lower unloading support block (406) is installed on the first linear slider (409); a horizontal extension cylinder (407) is installed on the lower end surface of the support base plate (401); the output end of the horizontal extension cylinder (407) is connected to the corresponding first linear slider (409); four first guide sleeve guide rods (408) are symmetrically installed on the support base plate (401); the upper end surface of the first guide sleeve guide rod (408) is connected to the pallet carrier support plate (403); and the lower end of the first guide sleeve guide rod (408) is connected to the flat plate.

4. The automatic assembly structure of the motor rotor front end cover assembly and the base rear end cover assembly according to claim 1 is characterized in that: The X-axis positioning and transplanting mechanism (6) comprises: a rotor base (601), a rotor support plate (602), a sensor (603), a positioning pin (604), a pin mounting plate (605), a pin ejection cylinder (606), a Z-direction servo module (607), a connecting plate (608), an X-axis servo module (609), a second linear slide rail (610) and a fixing plate (611); the rotor base (601) and the sensor (603) are mounted on the rotor support plate (602), and the The positioning pin (604) is mounted on the pin pushing cylinder (606) via the pin mounting block. The pin pushing cylinder (606) is mounted on the connecting plate (608) via the Z-axis servo module (607). The connecting plate (608) is connected to the rotor support plate (602) and driven by the X-axis servo module (609) to move along the second linear slide rail (610). The X-axis servo module (609) and the second linear slide rail (610) are mounted on the fixed plate (611).

5. The automatic assembly structure of the motor rotor front end cover assembly and the base rear end cover assembly according to claim 1 is characterized in that: The Z-axis press-fitting mechanism (5) comprises: a rotor clamping three-claw (501), a shaft end ejector (502), a shaft end ejector telescopic sleeve (503), an assembly press-fitting shaft (504), a three-claw cylinder (505), a floating connecting plate (506), a rotor floating module (507), a front end cover positioning pin (508), a positioning pin mounting block (509), a positioning pin horizontal cylinder (510), a positioning pin vertical cylinder (511), a positioning pin servo module (512), a servo fixing plate (513), a mechanism mounting plate (514), a Z-axis servo module (515), and a plurality of other components. ), a second guide sleeve guide rod (516) and a Z-axis press-fitting mechanism fixed plate (517); the rotor clamping three claws (501) are fixed below the floating connecting plate (506) through the three-claw cylinder (505); the final assembly press-fitting shaft (504) is connected below the shaft end ejector telescopic sleeve (503), and the shaft end ejector telescopic sleeve (503) passes through the three-claw cylinder (505) and is fixed below the floating connecting plate (506); the shaft end ejector (502) is installed inside the shaft end ejector telescopic sleeve (503), and the shaft end ejector telescopic sleeve (503) is fixed below the floating connecting plate (506); The shrink sleeve (503) is provided with a spring inside so that the shaft end ejector pin (502) can be compressed by force. The floating connecting plate (506) is installed below the rotor floating module (507). The rotor floating module (507) is provided with a center lock. In the initial state, the rotor floating module (507) is in a center lock state and cannot move in a plane. The rotor floating module (507) is installed on the mechanism installation plate (514) and is connected to the upper Z-axis servo module (515). The Z-axis servo module (515) is installed on the upper end of the Z-axis press-fit mechanism fixed plate (517). The Z-axis servo module (515) drives the second guide sleeve guide rod (516) to perform lifting motion. One side of the mechanism mounting plate (514) is connected to the positioning pin servo module (512) through the servo fixing plate (513). The front end cover positioning pin (508) is installed in the positioning pin mounting block (509). The positioning pin mounting block (509) is connected to the head of the positioning pin horizontal cylinder (510). The positioning pin horizontal cylinder (510) is installed on the head of the positioning pin vertical cylinder (511). The positioning pin vertical cylinder (511) is installed on the positioning pin servo module (512).

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