A vertical flexible fully automatic press-fitting device for motor stator base and rear end cover

Abstract

The present invention provides a vertical, flexible, fully automatic press-fitting device for a motor stator base and rear end cover, belonging to the technical field of motor automatic press-fitting equipment. The device comprises a device body, an automatic assembly line disposed within the device body, both ends of the automatic assembly line passing through the device body, a robot disposed on the side of one end of the automatic assembly line, a product pallet carrier mounted on the upper end of the automatic assembly line, a lifting and unloading mechanism mounted in the device body, a stator base positioning and transplanting mechanism disposed at the left end of the device body, and a Z-axis press-fitting mechanism disposed at the upper end of the device body. The present invention solves the problem that the existing assembly of the motor stator base and rear end cover requires manual loading and unloading of materials, resulting in low efficiency, waste of human resources, and the risk of injury to workers during handling.

Description

Technical Field

[0001] The invention belongs to the technical field of automatic press-assembly equipment for motors, and in particular relates to a vertical flexible fully automatic press-assembly device for a motor stator base and a rear end cover. Background Art

[0002] With the continuous innovation and development of my country's intelligent technology, the production methods of enterprises have also undergone tremendous changes, from the traditional production and manufacturing model where the entire production process relied on manual labor to the intelligent automated production that gradually uses automated production equipment to replace manual labor.

[0003] At present, there are two main ways to assemble the motor stator frame and the rear end cover in traditional industrial production. One way is to place the stator frame vertically, manually take the rear end cover and place it on the stator frame, and press the two together with a rubber hammer. The other way is to manually place the finished rotor horizontally into the motor stator frame, and then manually pre-install the front and rear end covers on the shaft extending from both ends of the rotor. The front and rear end covers are simultaneously moved inward in the horizontal direction by air pressure or hydraulic devices to complete the press-fitting of the front and rear end covers and the stator frame. However, these two methods require manual loading and unloading, which is inefficient. When the rotor is heavy, there is a risk of injury to workers during the handling process, which wastes human resources. In addition, 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 frame, affecting the subsequent process, namely the tightening operation of the end cover and the stator frame bolts. Manual correction is made with a rubber hammer before the bolts are inserted and tightened, or a guide rod is pre-placed 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

[0004] The present invention provides a vertical flexible fully automatic press-fitting device for a motor stator base and a rear end cover, which aims to solve the problem that the existing assembly of the motor stator base and the rear end cover requires manual loading and unloading of materials, which is inefficient, wastes human resources, and poses a risk of injury to workers during the handling process.

[0005] An embodiment of the present invention provides a vertical flexible fully automatic press-fitting device for a motor stator base and rear end cover, comprising a device body, an automatic assembly line disposed inside the device body, both ends of the automatic assembly line passing through the device body, a robot disposed on the side of one end of the automatic assembly line, a product tray carrier mounted on the upper end of the automatic assembly line, a lifting and unloading mechanism mounted in the device body, a stator base positioning and transplanting mechanism disposed at the left end of the device body, and a Z-axis press-fitting mechanism disposed at the upper end of the device body;

[0006] The robot is used to place the rear end cover required for production into the product tray carrier;

[0007] The automatic assembly line is used to drive the automatic flow of product pallet carriers;

[0008] The product tray carrier is used to place the rear end cover of the motor;

[0009] The lifting and unloading mechanism is used to automatically detect that the product tray carrier is in place, lift it off the automatic assembly line to a certain height and unload the force;

[0010] The stator base positioning and transplanting mechanism is used to transplant the motor stator base to the Z-axis axis center position of the Z-axis press-fitting mechanism;

[0011] The Z-axis pressing mechanism is used to position the inner support of the motor stator base and lift it to separate it from the stator base positioning and transplanting mechanism to maintain a safe height, and press the stator base and the rear end cover into place.

[0012] Furthermore, the product pallet carrier includes a carrier base plate installed on the automatic assembly line, and four centrally symmetrical positioning guide sleeves are provided on the carrier base plate, and the positioning guide sleeves are used for positioning and steering the product pallet carrier. 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 rear end cover of the motor, and an RFID chip is installed at the right end of the carrier base plate.

[0013] Furthermore, the lifting and unloading mechanism includes a supporting base plate installed on the equipment body, a Z-axis lifting cylinder is installed in the center of the supporting base plate, and a pallet carrier support plate is installed at the output end of the Z-axis lifting cylinder, the upper end of the pallet carrier support plate is symmetrically provided with four pallet carrier positioning pins, the pallet carrier positioning pins are used to position the four positioning guide sleeves on the product pallet carrier, and two upper unloading support blocks are symmetrically provided at the lower end of the pallet carrier support plate, two linear sliders are symmetrically slidably installed on the supporting base plate, and the lower unloading support block is installed on the linear slider. The lower end surface of the supporting base plate is installed with a horizontal extending cylinder, and the output end of the horizontal extending cylinder is connected to the corresponding linear slider, and four Z-axis linear guide sleeves are symmetrically installed on the supporting base plate, and a Z-axis linear guide rod is slidably installed in the Z-axis linear guide sleeve, the upper end of the Z-axis linear guide rod is connected to the lower end of the pallet carrier support plate, and the lower end of the Z-axis linear guide rod is installed with a flat plate through the Z-axis linear guide sleeve.

[0014] Furthermore, the stator base positioning and transplanting mechanism includes an X-axis servo module installed on the equipment body, a linear slide rail is installed on the X-axis servo module, a support platform is slidably installed on the linear slide rail, four compression springs and a guide rod are installed on the support platform, a stator base floating plate is installed on the compression spring, four guide sleeves are installed on the stator base floating plate, the guide sleeves are connected with the corresponding guide rods, a conical positioning pin is installed inside the stator base floating plate, and a sensor is installed on one side of the upper end of the support platform and below the stator base floating plate.

[0015] Furthermore, the Z-axis pressing mechanism includes an assembly plate mounted on the device body, a Z-axis servo module is mounted in the center of the assembly plate, four guide sleeves 2 are symmetrically arranged on the assembly plate, a guide rod 2 is slidably mounted in the guide sleeve 2, the upper end of the guide rod 2 passes through the guide sleeve 2 and is mounted on a mounting plate with a middle opening, the upper end of the Z-axis servo module passes through the opening of the mounting plate, the lower end of the guide rod 2 passes through the guide sleeve 2 and is mounted on a mechanism mounting plate, a plurality of guide rods 3 are mounted on the four sides of the lower end of the mechanism mounting plate, The upper end of the mechanism mounting plate is connected to the output end of the Z-axis servo module, and the lower end of the mechanism mounting plate is installed with a stator base floating module, and the lower end of the stator base floating module is installed with three stator inner support claws, and the center position of the three stator inner support claws is installed with a rear end cover center positioning compression shaft, and two press-fitting cylinders that act simultaneously on both sides are symmetrically installed at the center of the lower end of the mechanism mounting plate, and a press-fitting plate is installed at the lower end of the press-fitting cylinder, and multiple guide sleeves three are installed on the four sides of the press-fitting plate, and the guide sleeves three are connected with the guide rods three.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention adopts a highly automated procedure and does not require manual operation.

[0018] 2. The present invention adopts automatic assembly line operation, which has high work efficiency and improves the production efficiency of the enterprise.

[0019] 3. The production process of the entire process of the present invention is stable, and the consistency of the products is improved.

[0020] 4. The present invention is suitable for mass production, which reduces the production cost of the enterprise.

[0021] 5. The rear end cover and the stator base of the present invention are both positioned with positioning pins and will not rotate, which is beneficial to the automatic tightening of bolts in subsequent workstations.

[0022] 6. The present invention has strong adaptability and flexibility, is suitable for a variety of motor series, and is less restricted by the size and weight of the motor. At the same time, it can meet actual production needs by adjusting the clamping stroke of the three-claw stator support, the screw module model and stroke of the Z-axis servo module, and adjusting the corresponding positioning pin size of the product.

[0023] 7. The present invention has 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 can meet the production requirements of most models of the series of products.

[0024] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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:

[0026] Figure 1 Schematic diagram of the overall structure of an embodiment of the present invention;

[0027] Figure 2 This is a schematic structural diagram of a product tray carrier according to an embodiment of the present invention;

[0028] Figure 3 This is a schematic structural diagram of a lifting and unloading mechanism according to an embodiment of the present invention;

[0029] Figure 4 This is a structural diagram of a stator base positioning and transplanting mechanism according to an embodiment of the present invention;

[0030] Figure 5 Schematic diagram of the Z-axis press-fitting mechanism structure according to an embodiment of the present invention;

[0031] Figures: 1. Robot; 2. Automatic assembly line; 3. Equipment body; 4. Product pallet carrier; 5. Lifting and unloading mechanism; 6. Stator base positioning and transplanting mechanism; 7. Z-axis press-fitting mechanism; 41. Carrier base plate; 42. Positioning guide sleeve; 43. Rear end cover support block; 44. Rear end cover positioning pin; 45. RFID chip; 51. Support base plate; 52. Z-axis lifting cylinder; 53. Pallet carrier support plate; 54. Pallet carrier positioning pin; 55. Upper unloading force support block; 56. Lower unloading force support block; 57. Horizontally extending cylinder; 58. Z-axis linear guide sleeve; 59. Linear slider; 61. Floating plate for stator base; 62. Guide sleeve 1; 63. Compression spring; 64. Tapered positioning pin; 65. Support table; 66. Sensor; 67. X-axis servo module; 68. Linear slide; 71. Z-axis servo module; 72. Guide rod 2; 73. Mechanism mounting plate; 74. Stator base floating module; 75. Stator inner support three claws; 76. Rear end cover center positioning compression shaft; 77. Press-fit cylinder; 78. Press-fit plate. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Reference Figure 1-5, an embodiment of the present invention proposes a vertical flexible fully automatic press-fitting device for a motor stator base and a rear end cover, comprising a device body 3, an automatic assembly line 2 is arranged inside the device body 3, both ends of the automatic assembly line 2 pass through the device body 3, a robot 1 is arranged on the side of one end of the automatic assembly line 2, a product tray carrier 4 is installed on the upper end of the automatic assembly line 2, a lifting and unloading mechanism 5 is installed in the device body 3, a stator base positioning and transplanting mechanism 6 is arranged at the left end of the device body 3, and a Z-axis press-fitting mechanism 7 is arranged on the upper end of the device body 3; the machine The robot 1 is used to place the rear end cover required for production into the product tray carrier 4; the automatic assembly line 2 is used to drive the automatic flow of the product tray carrier 4; the product tray carrier 4 is used to place the rear end cover of the motor; the lifting and unloading mechanism 5 is used to automatically detect that the product tray carrier 4 is in place, and lift it off the automatic assembly line 2 to a certain height and unload the force; the stator base positioning and transplanting mechanism 6 is used to transplant the motor stator base to the Z-axis axis center position of the Z-axis pressing mechanism 7; the Z-axis pressing mechanism 7 is used to position the inner support of the motor stator base and lift it off the stator base positioning The transplanting mechanism 6 maintains a safe height and presses the stator base and the rear end cover into place; the rear end cover required for production is placed in the product tray carrier 4 through the robot 1, and the product tray carrier 4 automatically flows on the automatic assembly line 2 and flows into the interior of the equipment body 3, and then the motor stator base required for production is placed on the stator base positioning transplanting mechanism 6, and the lifting and unloading mechanism 5 automatically detects that the product tray carrier 4 is in place, and lifts it away from the automatic assembly line 2 to a certain height and unloads the force, and the stator base positioning transplanting mechanism 6 transplants the stator base to the Z-axis axis center position of the Z-axis press-fitting mechanism 7, and the Z-axis press-fitting mechanism 7 is pressed into place. Mechanism 7 descends to position the stator base inner support and lifts it away from the stator base positioning and transplanting mechanism 6 to maintain a safe height. The stator base positioning and transplanting mechanism 6 is reset, and the Z-axis pressing mechanism 7 descends with the stator base to press the stator base and the rear end cover into place. The Z-axis pressing mechanism 7 is reset, and the jacking and unloading mechanism 5 is reset. The product tray carrier 4 falls into the automatic assembly line 2 and continues to flow to the next workstation, realizing automatic loading and unloading of the motor stator base and the rear end cover, and also realizing fully automatic pressing. The overall pressing efficiency is greatly improved, human resources are saved, and the risk of injury to workers during the handling process is avoided.

[0034] The product pallet carrier 4 includes a carrier base plate 41 installed on the automatic assembly line 2, and four centrally symmetrical positioning guide sleeves 42 are provided on the carrier base plate 41. The positioning guide sleeves 42 are used for positioning and steering the product pallet carrier 4. The upper end of the carrier base plate 41 is located between the positioning guide sleeves 42 and a rear end cover support block 43 is installed. A rear end cover positioning pin 44 is installed on the rear end cover support block 43. The rear end cover positioning pin 44 is used to prevent the rotation of the rear end cover of the motor. An RFID chip is installed on the right end of the carrier base plate 41, and the model of the RFID chip 45 is MDS D422. The robot 1 is used to place the rear end cover required for production on the product pallet carrier 4, and two series of rear end covers of different sizes can be placed. The rear end cover adopts the rear end cover positioning pin 44 and the positioning through hole to prevent rotation, and then the product information is entered into the RFID chip 45. The automatic assembly line 2 automatically detects and reads the content of the RFID chip 45, and releases the product pallet carrier 4 to flow to the next workstation.

[0035] The lifting and unloading mechanism 5 includes a supporting base plate 51 installed on the equipment body 3, a Z-axis lifting cylinder 52 is installed in the center of the supporting base plate 51, and a pallet carrier supporting plate 53 is installed at the output end of the Z-axis lifting cylinder 52. Four pallet carrier positioning pins 54 are symmetrically arranged on the upper end of the pallet carrier supporting plate 53. The pallet carrier positioning pins 54 are used to position the four positioning guide sleeves 42 on the product pallet carrier 4. Two upper unloading support blocks 55 are symmetrically arranged on the lower end of the pallet carrier supporting plate 53. Two linear sliders 59 are installed with a lower unloading force support block 56 on the linear slider 59, and a horizontal extension cylinder 57 is installed on the lower end surface of the support base plate 51. The output end of the horizontal extension cylinder 57 is connected to the corresponding linear slider 59. Four Z-axis linear guide sleeves 58 are symmetrically installed on the support base plate 51. A Z-axis linear guide rod is slidably installed in the Z-axis linear guide sleeve 58. The upper end of the Z-axis linear guide rod is connected to the lower end of the tray carrier support plate 53, and the lower end of the Z-axis linear guide rod is installed with a flat plate through the Z-axis linear guide sleeve 58; this realizes the product tray carrier 4 in place. Automatic detection, and lift it off the automatic assembly line 2 to a certain height and unload the force. After the product pallet carrier 4 is in place, the RFID reader inside the equipment reads the RFID chip 45 information, sends the read information to the PLC and processes the information. The PLC controls the operation of the equipment, and the Z-axis lifting cylinder 52 extends, driving the pallet carrier support plate 53, the pallet carrier positioning pin 54, and the upper unloading support block 55 to rise vertically along the guide Z-axis linear guide sleeve 58 and the Z-axis linear guide rod. The pallet carrier positioning pin 54 is positioned to the four positioning guide sleeves 42 on the product pallet carrier 4, and it The jacking is lifted to a certain height away from the automatic assembly line 2, and the horizontal extension cylinder 57 is extended, driving the linear slider 59 connected to the two ends of the horizontal extension cylinder 57 and the lower unloading force support block 56 to open outward. At this time, the lower unloading force support block 56 moves to the bottom of the upper unloading force support block 55. The reverse unloading force of the Z-axis jacking cylinder 52 is caused by gravity to make the upper unloading force support block 55 and the lower unloading force support block 56 contact, so that the force on the upper pallet carrier support plate 53 during press-fitting is transmitted from the upper unloading force support block 55 to the lower unloading force support block 56 and then to the support bottom plate 51 and then to the inside of the equipment body 3.

[0036] The stator base positioning and transplanting mechanism 6 includes an X-axis servo module 67 installed on the equipment body 3, a linear slide 68 is installed on the X-axis servo module 67, a support platform 65 is slidably installed on the linear slide 68, four compression springs 63 and a guide rod 1 are installed on the support platform 65, a stator base placement floating plate 61 is installed on the compression spring 63, four guide sleeves 62 are installed on the stator base placement floating plate 61, and the guide sleeve 1 62 is connected with the corresponding guide rod, a tapered positioning pin 64 is installed inside the stator base placement floating plate 61, and a sensor 66 is installed on one side of the upper end of the support platform 65 and below the stator base placement floating plate 61. The model of the sensor 66 is IME08-D; the motor stator base is transplanted to the Z-axis axis center position of the Z-axis press-fitting mechanism 7, and the robot 1 places the motor stator base required for production on the stator base placement floating plate 61. The threaded hole on the end face of the motor stator base is completely inserted into the tapered locating pin 64. Since the motor stator base comes from the automatic production equipment of the previous workstation, the robot 1 can confirm the position and angle of the threaded hole on the end face of the motor stator base and make corresponding adjustments so that it can cooperate with the tapered locating pin 64. The head fixture of the robot 1 is opened and the robot 1 is reset. At the same time, due to the gravity of the motor stator base body, the stator base placement floating plate 61 is forced to descend along the guide sleeve 62 and the guide rod 1. The compression spring 63 is compressed to make the stator base placement floating plate 61 slowly contact with the support platform 65 to start a buffering effect, avoiding direct collision between the head fixture of the robot 1 and the support platform 65 when placing the motor stator base. After the motor stator base is in place, the sensor 66 is triggered by the material signal, and the X-axis servo module 67 moves horizontally. The X-axis servo module 67 drives the support platform 65 to move the motor stator base to the Z-axis axis position directly below the Z-axis press-fitting mechanism 7.

[0037] The Z-axis pressing mechanism 7 includes an assembly plate mounted on the equipment body 3, a Z-axis servo module 71 is mounted in the center of the assembly plate, four guide sleeves 2 are symmetrically arranged on the assembly plate, a guide rod 2 72 is slidably mounted in the guide sleeve 2, the upper end of the guide rod 2 72 passes through the guide sleeve 2 and is mounted on a mounting plate with a middle opening, the upper end of the Z-axis servo module 71 passes through the opening of the mounting plate, the lower end of the guide rod 2 72 passes through the guide sleeve 2 and is mounted on a mechanism mounting plate 73, a plurality of guide rods 3 are mounted on the four sides of the lower end of the mechanism mounting plate 73, the upper end of the mechanism mounting plate 73 is connected to the output end of the Z-axis servo module 71, and the mechanism mounting plate 73 The lower end of the stator base floating module 74 is installed. The stator base floating module 74 is a standard pneumatic actuator. When air is introduced at one end, the floating module is in a center-locked state, and when air is introduced at the other end, the floating module is in a movable state. The lower end of the stator base floating module 74 is installed with a stator inner support three-claw 75. The center position of the stator inner support three-claw 75 is installed with a rear end cover center positioning compression shaft 76. The lower end of the mechanism mounting plate 73 is symmetrically installed with two press-fitting cylinders 77 that act simultaneously on both sides. The lower end of the press-fitting cylinder 77 is installed with a press-fitting plate 78. A plurality of guide sleeves three are installed on the four sides of the press-fitting plate 78. The guide sleeve three is sleeved with the guide rod three.The motor stator base inner support is positioned and lifted to separate it from the stator base positioning and transplanting mechanism 6 to maintain a safe height, and the stator base and the rear end cover are pressed into place. In the initial state, the stator base floating module 74 is in the center lock state and cannot move in the plane. When the center lock is opened, the stator base floating module 74 can move freely in the plane XY direction by 0-2mm. During operation, the Z-axis servo module 71 drives the stator inner support three claws 75 to drop to the set distance. At this time, the stator inner support three claws 75 are in the center position inside the motor stator base, and the top of the rear end cover center positioning compression shaft 76 protrudes a certain distance from the motor stator base. The distance set here is used for compression during the subsequent rear end cover center positioning. The stator inner support three claws 75 are opened, and the internal support motor The stator inner diameter of the stator base, the Z-axis servo module 71 drives the stator inner support three claws 75 and the motor stator base to rise together, and maintain a certain safety distance from the stator base positioning and transplanting mechanism 6. The X-axis servo module 67 inside the stator base positioning and transplanting mechanism 6 moves horizontally to restore to its original position, and all the mechanisms of the Z-axis pressing mechanism 7 are driven by the Z-axis servo module 71 to descend vertically along the guide sleeve 2 and the guide rod 2 72. It is known that the rear end cover is already on the product tray carrier 4 inside the equipment body 3, and the product tray carrier 4 has been unloaded. The Z-axis servo module 71 first quickly lowers the motor stator base supported by the stator inner support three claws 75 to a fixed distance above the rear end cover. At this time, the center lock of the stator base floating module 74 is opened to make it in a plane XY direction. When the rear cover is in the free moving state, the Z-axis pressing mechanism 7 slowly descends to make the rear end cover center positioning compression shaft 76 slowly contact with the rear end cover center circle, and the set rear end cover center positioning compression shaft 76 compression distance is fully compressed. Since the rear end cover is positioned and cannot be moved by the rear end cover positioning pin 44 on the product tray carrier 4, and the rear end cover center positioning compression shaft 76 is installed on the stator base floating module 74 and the stator base floating module 74 is in a state of free movement in the XY directions, when the rear end cover center circle is not concentric with the rear end cover center positioning compression shaft 76, the stator base floating module 74 can automatically adjust the axial position of the rear end cover center positioning compression shaft 76, that is, adjust the stator base axial position on the stator inner support three claws 75 to keep it in line with the rear end cover center circle. Concentrically, the three stator inner support claws 75 close to disengage the stator inside the motor stator base. The dynamic press-fitting cylinders 77 on both sides are actuated to drive the press-fitting plates 78 downward to completely press the motor stator base and the rear end cover together. Because the rear end cover is positioned by the rear end cover positioning pins 44 on the product tray carrier 4, and the motor stator base is also positioned by the tapered positioning pins 64 on the stator base positioning and transplanting mechanism 6, the motor stator base and the rear end cover can be pressed together at a set angle during press-fitting, ensuring that the threaded holes of the motor stator base and the rear end cover through-holes are concentric, facilitating the subsequent automatic tightening of the rear end cover screws. All mechanisms of the Z-axis press-fitting mechanism 7 are reset, the lifting and unloading mechanism 5 is reset, and the product tray carrier 4 falls into the automatic assembly line 2 to continue to the next station.

[0038] The specific implementation method is as follows: the operation of the equipment is controlled by PLC, and all action instructions and signal interactions are received and issued by PLC. At the same time, the equipment also includes MES system and authority management system. MES system writes the current product information into RFID. After the equipment reads the RFID product information, it produces according to the corresponding parameters. The authority management system is used to set the authority to operate the equipment. Only authorized and registered personnel can operate. The safety of equipment operation is improved through the authority management system. When working, the robot 1 puts the rear end cover required for production into the product pallet carrier 4. Two series of rear end covers of different sizes can be placed. The rear end cover uses the rear end cover positioning pin 44 and the positioning through hole to prevent rotation, and then enters the RFID chip 45. Product information, the automatic assembly line 2 automatically detects and reads the content of the RFID chip 45, and releases the product pallet carrier 4 to flow to the next station. After the product pallet carrier 4 is in place, the RFID reader inside the equipment reads the RFID chip 45 information, sends the read information to the PLC and processes the information. The PLC controls the operation of the equipment, and the Z-axis lifting cylinder 52 extends, driving the pallet carrier support plate 53, the pallet carrier positioning pin 54, and the upper unloading force support block 55 to rise vertically along the guide Z-axis linear guide sleeve 58 and the Z-axis linear guide rod. The pallet carrier positioning pin 54 is positioned to the four positioning guide sleeves 42 on the product pallet carrier 4, and lifts it off the automatic assembly line 2 to a certain height. The horizontal extension cylinder 57 extends, driving the The linear sliders 59 at both ends of the extended cylinder 57 and the lower unloading force support block 56 are opened outward together. At this time, the lower unloading force support block 56 moves to the bottom of the upper unloading force support block 55. The reverse unloading force of the Z-axis lifting cylinder 52 is caused by gravity to make the upper unloading force support block 55 and the lower unloading force support block 56 contact, so that the force of the upper pallet carrier support plate 53 during press-fitting is transmitted from the upper unloading force support block 55 to the lower unloading force support block 56 and then to the support base plate 51 and then to the interior of the equipment body 3. The robot 1 places the motor stator base required for production on the stator base placement floating plate 61, and makes the threaded hole on the end face of the motor stator base completely fit into the tapered locating pin 64. Because the motor stator base comes from the automatic production equipment of the previous station, the robot 1 can confirm The threaded hole position and angle of the motor stator base end face are adjusted accordingly so that they can cooperate with the tapered positioning pin 64. The head fixture of the robot 1 is opened and the robot 1 is reset. At the same time, due to the gravity of the motor stator base body, the stator base placement floating plate 61 is forced to descend along the guide sleeve 62 and the guide rod 1. The compression spring 63 is compressed to make the stator base placement floating plate 61 slowly contact the support platform 65 to start the buffering effect, avoiding the direct collision between the head fixture of the robot 1 and the support platform 65 when placing the motor stator base. After the motor stator base is in place, the sensor 66 is triggered by the material signal, and the X-axis servo module 67 moves horizontally. The X-axis servo module 67 drives the support platform 65 to move the motor stator base to the Z-axis axis position just below the Z-axis press-fitting mechanism 7.In the initial state, the stator base floating module 74 is in the center lock state and cannot move in the plane. When the center lock is opened, the stator base floating module 74 can move freely in the plane XY direction by 0-2mm. When working, the Z-axis servo module 71 drives the stator inner support three claws 75 to drop to the set distance. At this time, the stator inner support three claws 75 are in the center position inside the motor stator base, and the top of the rear end cover center positioning compression shaft 76 protrudes a certain distance from the motor stator base. The distance set here is used for compression during the subsequent rear end cover center positioning. The stator inner support three claws 75 are opened to support the stator inner diameter of the motor stator base. The Z-axis servo module 71 drives the stator inner support three claws 75 and the motor stator base to rise together. , and maintain a certain safety distance from the stator machine base positioning and transplanting mechanism 6, the X-axis servo module 67 inside the stator machine base positioning and transplanting mechanism 6 moves horizontally to restore to its original position, and all the mechanisms of the Z-axis pressing mechanism 7 are driven by the Z-axis servo module 71 and vertically descend along the guide sleeve 2 and the guide rod 2 72. It is known that the rear end cover is already on the product tray carrier 4 inside the equipment body 3, and the product tray carrier 4 has been unloaded. The Z-axis servo module 71 first quickly descends the motor stator machine base supported by the stator inner support three claws 75 to a fixed distance above the rear end cover. At this time, the center lock of the stator machine base floating module 74 is opened to make it in a state of free movement in the plane XY direction, and the Z-axis pressing mechanism 7 slowly descends again to make the center of the rear end cover fixed. The compression shaft 76 slowly contacts the center circle of the rear end cover and fully compresses the set compression distance of the rear end cover center positioning compression shaft 76. Since the rear end cover is positioned and cannot be moved by the rear end cover positioning pin 44 on the product tray carrier 4, and the rear end cover center positioning compression shaft 76 is installed on the stator base floating module 74 and the stator base floating module 74 is in a state of free movement in the XY direction, when the center circle of the rear end cover is not concentric with the rear end cover center positioning compression shaft 76, the axis position of the rear end cover center positioning compression shaft 76 can be automatically adjusted by the stator base floating module 74, that is, the axis position of the stator base on the stator inner support three claws 75 is adjusted to keep it concentric with the center circle of the rear end cover, and the stator inner support three claws 75 are closed. The stator inside the motor stator base is disengaged, and the simultaneous pressing cylinders 77 on both sides drive the pressing plates 78 downward to completely press the motor stator base and the rear end cover together. Because the rear end cover is positioned by the rear end cover positioning pins 44 on the product tray carrier 4, and the motor stator base is also positioned by the tapered positioning pins 64 on the stator base positioning and transplanting mechanism 6, the motor stator base and the rear end cover can be pressed together at a set angle during press-fitting, ensuring that the threaded holes of the motor stator base and the through holes of the rear end cover are concentric, facilitating the subsequent automatic tightening of the rear end cover screws. All mechanisms of the Z-axis pressing mechanism 7 are reset, the lifting and unloading mechanism 5 is reset, and the product tray carrier 4 falls into the automatic assembly line 2 to continue to the next station.

[0039] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical flexible fully automatic press-fitting device for a motor stator frame and a rear end cover, comprising a device body (3), characterized in that: An automatic assembly line (2) is provided inside the equipment body (3), both ends of the automatic assembly line (2) pass through the equipment body (3), a robot (1) is provided on the side of one end of the automatic assembly line (2), a product tray carrier (4) is installed at the upper end of the automatic assembly line (2), a lifting and unloading mechanism (5) is installed in the equipment body (3), a stator base positioning and transplanting mechanism (6) is provided at the left end of the equipment body (3), and a Z-axis pressing mechanism (7) is provided at the upper end of the equipment body (3); The robot (1) is used to place the rear end cover required for production into the product tray carrier (4); The automatic assembly line (2) is used to drive the automatic circulation of product tray carriers (4); The product tray carrier (4) is used to place the rear end cover of the motor; The lifting and unloading mechanism (5) is used to automatically detect that the product tray carrier (4) is in place, and lift it off the automatic assembly line (2) to a certain height and unload the force; The lifting and unloading mechanism (5) comprises a supporting base plate (51) mounted on the equipment body (3); a Z-axis lifting cylinder (52) is mounted in the center of the supporting base plate (51); a pallet carrier supporting plate (53) is mounted on the output end of the Z-axis lifting cylinder (52); four pallet carrier positioning pins (54) are symmetrically arranged on the upper end of the pallet carrier supporting plate (53); two upper unloading support blocks (55) are symmetrically arranged on the lower end of the pallet carrier supporting plate (53); two linear sliders (59) are symmetrically slidably mounted on the supporting base plate (51); A lower unloading support block (56) is installed on the linear slider (59), a horizontal extension cylinder (57) is installed on the lower end surface of the support base plate (51), and the output end of the horizontal extension cylinder (57) is connected to the corresponding linear slider (59), and four Z-axis linear guide sleeves (58) are symmetrically installed on the support base plate (51), and a Z-axis linear guide rod is slidably installed in the Z-axis linear guide sleeve (58), and the upper end of the Z-axis linear guide rod is connected to the lower end of the tray carrier support plate (53), and the lower end of the Z-axis linear guide rod is installed with a flat plate through the Z-axis linear guide sleeve (58); The stator base positioning and transplanting mechanism (6) is used to transplant the motor stator base to the Z-axis axis center position of the Z-axis pressing mechanism (7); The Z-axis pressing mechanism (7) is used to position the inner support of the motor stator base and lift it to separate it from the stator base positioning and transplanting mechanism (6) to maintain a safe height, and to press the stator base and the rear end cover into place; The Z-axis pressing mechanism (7) includes an assembly plate mounted on the device body (3), a Z-axis servo module (71) is mounted in the center of the assembly plate, four guide sleeves 2 are symmetrically arranged on the assembly plate, a guide rod 2 (72) is slidably mounted in the guide sleeve 2, the upper end of the guide rod 2 (72) passes through the guide sleeve 2 and is mounted on a mounting plate with a middle opening, the upper end of the Z-axis servo module (71) passes through the opening of the mounting plate, the lower end of the guide rod 2 (72) passes through the guide sleeve 2 and is mounted on a mechanism mounting plate (73), a plurality of guide rods 3 are mounted on the four sides of the lower end of the mechanism mounting plate (73), and the upper end of the mechanism mounting plate (73) is provided with a plurality of guide rods 3. The end is connected to the output end of the Z-axis servo module (71); the lower end of the mechanism mounting plate (73) is installed with a stator base floating module (74); the lower end of the stator base floating module (74) is installed with a stator inner support three claws (75); the center position of the stator inner support three claws (75) is installed with a rear end cover center positioning compression shaft (76); the lower end of the mechanism mounting plate (73) is centrally symmetrically installed with two press-fitting cylinders (77) that can act simultaneously; the lower end of the press-fitting cylinder (77) is installed with a press-fitting plate (78); the four sides of the press-fitting plate (78) are installed with a plurality of guide sleeves three, and the guide sleeves three are sleeved with guide rods three.

2. The vertical flexible fully automatic press-fitting device for a motor stator frame and rear end cover according to claim 1, characterized in that: The product tray carrier (4) includes a carrier base plate (41) mounted on the automatic assembly line (2), and four centrally symmetrical positioning guide sleeves (42) are provided on the carrier base plate (41). The positioning guide sleeves (42) are used for positioning and steering the product tray carrier (4). A rear end cover support block (43) is installed between the upper end of the carrier base plate (41) and the positioning guide sleeves (42). A rear end cover positioning pin (44) is installed on the rear end cover support block (43). The rear end cover positioning pin (44) is used to prevent the rear end cover of the motor from rotating. An RFID chip (45) is installed on the right end of the carrier base plate (41). The RFID chip (45) is used for entering product information and automatically reading the automatic assembly line (2).

3. The vertical flexible fully automatic press-fitting device for a motor stator frame and rear end cover according to claim 2, characterized in that: The tray carrier positioning pins (54) are used to position the four positioning guide sleeves (42) on the product tray carrier (4).

4. The vertical flexible fully automatic press-fitting device for a motor stator frame and rear end cover according to claim 1, characterized in that: The stator base positioning and transplanting mechanism (6) includes an X-axis servo module (67) installed on the equipment body (3), a linear slide rail (68) is installed on the X-axis servo module (67), a support platform (65) is slidably installed on the linear slide rail (68), four compression springs (63) and a guide rod are installed on the support platform (65), a stator base placement floating plate (61) is installed on the compression spring (63), four guide sleeves (62) are installed on the stator base placement floating plate (61), and the guide sleeves (62) are connected to the corresponding guide rods. A conical positioning pin (64) is installed inside the stator base placement floating plate (61), and a sensor (66) is installed on one side of the upper end of the support platform (65) and below the stator base placement floating plate (61).

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