An automatic assembly and detection production line for a motor rotor and its production method

Abstract

The present invention discloses an automatic assembly and detection production line for a motor rotor and its production method, belonging to the field of automatic assembly equipment for motor rotors. The production line includes a machine table, and a first feeding mechanism, a feeding mechanism, a positioning mechanism, a pad printer, a first dividing device, a vision detection mechanism, a first oiling device, a first material transfer manipulator, a second feeding mechanism, a press, a second dividing device, a runout detection device, a material taking mechanism, a second oiling device, a second material transfer manipulator and a material receiving mechanism, which are sequentially arranged on the machine table. The feeding mechanism, the positioning mechanism, the pad printer, the vision detection mechanism and the first oiling device are arranged at intervals around the first dividing device. The second feeding mechanism, the press and the material taking mechanism are arranged around the second dividing device. The runout detection device and the second oiling device are arranged side by side with the material taking mechanism. It has processes such as motor rotor positioning, assembly, silk screen printing, detection and multiple oiling operations, meeting the high-efficiency and high-quality production of motor rotors.

Description

Technical Field

[0001] The present invention relates to the field of automatic assembly equipment for motor rotors, and particularly to an automatic assembly and detection production line for motor rotors. Background Art

[0002] As a prime mover, motors are widely used in industries, transportation, agriculture, construction, and other places where power is required. Generally, a motor mainly consists of a stator and a rotor. At present, in the motor manufacturing industry, the degree of automation in the assembly of motor rotors and motor shafts is not high. Usually, a large amount of manpower is required to complete the processes of feeding, discharging, and assembling the motor rotors. Moreover, after assembly, it is also necessary to detect and separate the qualified and unqualified products of the finished products, and it is also necessary to engrave and print the motors. This not only wastes manpower and material resources, but also has a low level of automation, resulting in low production efficiency, and the assembly accuracy cannot be guaranteed. The unqualified products are not effectively processed. There is a need for a production line that can automatically complete the installation, silk screening, oiling, detection, and temporary storage of motor rotors and shafts.

[0003] The patent application with the publication number CN209830845U discloses a fully automatic motor processing production line, including a motor housing, a rotor pressing mechanism, a motor rear cover pressing mechanism, and a motor detection mechanism. Through the motor housing and the rotor pressing mechanism, the housing and rotor of the motor are pressed and assembled, and the housing with the pressed rotor is sent to the motor rear cover pressing mechanism to sequentially press and assemble a carbon brush holder and a rear cover at the rear end of the housing. Thus, the assembly of the entire motor is completed. The assembled motor is sent to the motor detection mechanism for detection of various parameters. For motors with unqualified parameter detections, they are sent to the corresponding unqualified product boxes, and the motors with qualified detections are sent into a feeding box. This fully automatic motor processing production line only assembles and detects the motors, lacks printing and oiling maintenance, is not conducive to motor storage and rapid shipment. In addition, the layout of this production line is not compact enough and occupies a large space. Summary of the Invention

[0004] One of the objectives of the present invention is to provide an automatic assembly and detection production line for motor rotors, which solves the problems of lack of oiling protection, printing process, and large floor area in the motor rotor production line.

[0005] To achieve the above-mentioned invention objectives, the technical solutions adopted by the present invention are as follows:

[0006] An automatic assembly and inspection production line for a motor rotor, comprising a machine platform and a first feeding mechanism, a loading mechanism, a positioning mechanism, a pad printer, a first dividing device, a vision inspection mechanism, a first oiling device, a first material transfer manipulator, a second feeding mechanism, a press, a second dividing device, a runout detection device, a material taking mechanism, a second oiling device, a second material transfer manipulator and a material receiving mechanism which are sequentially arranged on the machine platform. The loading mechanism, the positioning mechanism, the pad printer, the vision inspection mechanism and the first oiling device are arranged at equal intervals around the first dividing device. The second feeding mechanism, the press and the material taking mechanism are arranged around the second dividing device. The runout detection device and the second oiling device are arranged side by side with the material taking mechanism. The layout is compact and occupies less space. It can be arranged side by side like gold bars in the workshop, improving the consistency of the produced motors.

[0007] The first feeding mechanism includes a horizontal conveyor belt, a vertical conveyor belt, a loading sensor and a temporary storage area. The horizontal conveyor belt is butt-joint arranged on one side of the vertical conveyor belt. The temporary storage area is arranged at the end of the horizontal conveyor belt. The loading sensor is arranged on one side of the horizontal conveyor belt and at the boundary of the temporary storage area, feeding and loading in a whole-group manner, with high loading efficiency.

[0008] The first dividing device includes a first driver, a first divider, a first dividing disc and dividing positioning columns. The first divider is arranged on the machine platform. The first driver is connected to the first divider. The first dividing disc is rotatably connected to the first divider. The dividing positioning columns are arranged on the dividing disc. The second dividing device includes a bottom plate, a second divider, a second driver, a second dividing disc and elastic positioning columns. The bottom plate is arranged on the machine platform. The second divider is arranged on the bottom plate. The second driver is connected to the second divider. The second dividing disc is arranged on the second divider. The elastic positioning columns are arranged on the second dividing disc. It is rotationally positioned by the first divider, and multiple processes are executed in one rotation, improving the accuracy of alignment and reducing redundant movement.

[0009] The structures of the first material transfer manipulator and the second material transfer manipulator are the same. The first material transfer manipulator includes a column, a double-joint arm, a lifting rod and a gripper. The column is arranged on the machine platform. The double-joint arm is arranged on the column. The lifting rod is helically connected in the double-joint arm. The gripper is arranged at one end of the lifting rod, used for moving over a relatively long distance between different processes, improving the movement range of the produced motor rotor.

[0010] The structures of the first oiling device and the second oiling device are the same. The first oiling device includes an oiling positioning post, a vertical post, a sliding table, an oiling cylinder, an oiling gun, and an oil storage tank. The oiling positioning post is arranged on the machine table. The vertical post is arranged on one side of the oiling positioning post. The sliding table is slidably connected to one side wall of the vertical post. The oiling cylinder is connected to the sliding table. The oiling gun is arranged on the sliding table. The oil storage tank is arranged on the other side wall of the vertical post. The oiling gun is communicated with the oil storage tank for pressure oiling, which improves the oiling efficiency and has a small floor area.

[0011] The runout detection device includes a runout detection positioning post, a plate frame, a rotary cylinder, a rotary motor, a rotary head, a detection cylinder, a buffer, and a runout detection sensor. The runout detection positioning post is arranged on the machine table. The plate frame is arranged around the runout detection positioning post. The rotary cylinder is arranged on the top of the plate frame. The rotary motor is arranged at one end of the rotary cylinder. The rotary head is arranged on the output shaft of the rotary motor. The runout detection sensor is arranged on the detection cylinder. The detection cylinder is arranged inside the runout detection positioning post and is used to rotate the motor rotor pair for inner hole roundness runout detection, which improves the detection efficiency.

[0012] The material taking mechanism includes a pallet, a transverse movement module, a lifting module, a longitudinal movement module, and a material taking claw. The pallet is arranged on the machine table. The transverse movement module is arranged on the pallet. The longitudinal movement module is arranged on the transverse movement module. The longitudinal movement module is arranged on the lifting module. The material taking claw is arranged on the lifting module. It can move multiple motor rotors simultaneously and alternate between different processes, improving the material transfer speed and reducing movement redundancy.

[0013] The second feeding mechanism includes a frame, a rotary motor, a horizontal axis cylinder, a displacement cylinder, a corner cylinder, a shaft clamp, a feeding detector, and a hopper. The frame is arranged on the machine table. The hopper is arranged above the frame. The displacement cylinder is arranged below the hopper. The horizontal axis cylinder is slidably connected to the displacement cylinder. The rotary motor is arranged on the horizontal axis cylinder. The corner cylinder is arranged above the displacement cylinder and is arranged side by side with the hopper. The shaft clamp is rotatably connected to the corner cylinder. The feeding mechanism includes a Y-axis material taker, a Z-axis material taker, a clamping cylinder, a vertical rod, and a material transfer sensor. The vertical rod is arranged on the machine table. The Y-axis material taker is arranged on the upper part of the vertical rod. The Z-axis material taker is arranged on the Y-axis material taker. The clamping cylinder is arranged on the Z-axis material taker. The material transfer sensor is arranged on the side wall of the Z-axis material taker. It can take out the motor shafts one by one and adjust their postures, making the feeding accuracy and stability higher.

[0014] It further includes a recycling and conveying device which is arranged within the stroke range of the first material transfer manipulator to temporarily store the unqualified ones waiting for recycling.

[0015] The second object of the present invention is to provide an automatic assembly and detection production method for motor rotors, which solves the problems of low efficiency and low accuracy in the assembly and detection processes of motor rotors.

[0016] To achieve the above-mentioned invention objects, the technical solutions adopted by the present invention are as follows:

[0017] An automatic assembly and detection method for motor rotors includes the following steps:

[0018] S1. Feeding: The motor rotors are arranged in a matrix form and placed on the first feeding mechanism, and the first feeding mechanism conveys them forward row by row;

[0019] S2. Loading and positioning: The loading mechanism operates to successively place the motor rotors temporarily stored on the first feeding mechanism onto the first dividing device one by one. The first dividing device makes a step-by-step rotation, and the positioning mechanism pushes the motor rotor to rotate so that the motor rotor faces a fixed direction;

[0020] S3. Pad printing and detection: The first dividing device makes a step-by-step rotation again and stops under the pad printer after entering. The pad printer prints on the surface of the motor rotor. After printing is completed, the first dividing device makes a step-by-step rotation and enters under the vision detection mechanism and stops. The vision detection mechanism conducts vision detection on the motor rotor;

[0021] S4. First oiling: The first dividing device makes a step-by-step rotation to move the motor rotor under the first oiling device, and the first oiling device injects oil into the shaft hole of the motor rotor;

[0022] S5. Discharging: The first dividing device makes a step-by-step rotation to move the motor rotor to an empty position, waiting for the first material transfer manipulator to pick it up. After the first dividing device completes a cycle, the loading mechanism feeds materials again. Each time the first dividing device rotates one step, it completes five processes of loading, positioning, pad printing, detection, and oiling;

[0023] S6. Shaft installation: The second feeding mechanism adjusts the motor shaft to a predetermined position. The first material transfer manipulator places the motor rotor and the motor shaft on the second dividing device, making the motor shaft located below the motor rotor. The second dividing device makes a step-by-step rotation to move the motor rotor under the press, and the press presses and installs the motor shaft;

[0024] S7, runout detection and second oiling: the material taking mechanism moves the motor rotor on the second segmentation device to the runout detection device to perform motor rotor circular runout detection in an alternating manner, and simultaneously moves the motor rotor on the runout detection device to the second oiling device to perform oiling;

[0025] S8, material unloading and storage: the second material transfer robot takes the motor rotor and places it on the material receiving mechanism for classification, counting and storage.

[0026] The beneficial effects of the present invention are:

[0027] (1) The first feeding mechanism, loading mechanism, positioning mechanism, pad printing machine, first cutting device, visual inspection mechanism, first oiling device, first material transfer robot, second feeding mechanism, press machine, second cutting device, vibration inspection device, material picking mechanism, second oiling device, second material transfer robot and material receiving mechanism on the automatic assembly and inspection production line of the motor rotor are arranged compactly. Five working processes including loading mechanism, positioning mechanism, pad printing machine, first cutting device, visual inspection mechanism and first oiling device are arranged around the first cutting device. The first cutting device can shift the motor rotor among the five working processes by one rotation. In addition, the material picking mechanism can alternately move the motor rotor between different working processes in a translational manner, thereby improving the assembly efficiency of the workpiece and reducing the space occupied by the production line. The production line has the working processes of positioning the motor rotor, assembling the motor shaft, silk screen printing, inspection and multiple oiling, which can meet the high-efficiency production of the motor rotor and improve the quality of the motor rotor.

[0028] (2) The production line has two material transfer robots and a material picking mechanism, which can install the motor rotor and motor shaft together and press them together. The second feeding mechanism can rotate and position the motor shafts one by one and feed them to adjust the posture of the motor shafts, making it easier for the material transfer robot to clamp and place them, thereby improving the accuracy of motor shaft feeding and the success rate of assembly. The material picking mechanism operates in a three-axis translation mode, which can move two motor rotors at the same time and allow them to move between different processes. It cooperates with the second splitting device and the second material transfer robot to perform continuous feeding, thereby improving the continuity of motor rotor assembly.

[0029] (3) The production line is also equipped with a recycling conveyor device, which is equipped with a conveyor belt and can receive unqualified motor rotors from the material transfer robot for temporary storage, thereby ensuring the yield rate of motor rotor production.

[0030] (4) The production method of this motor rotor can continuously assemble the motor rotor and the motor shaft. During the assembly process, multiple oil coating and pad printing processes are inserted. It can also detect the appearance of the motor rotor and separate the unqualified products. After completing the assembly of the motor rotor and the motor shaft, it can also perform classified storage. The motor rotors are assembled and detected in groups in a sequential manner, ensuring the production quality and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The top view of the automatic assembly and detection production line of the motor rotor provided by the present invention;

[0032] Figure 2 The front view of the automatic assembly and detection production line of the motor rotor provided by the present invention;

[0033] Figure 3 The axonometric view of the first feeding mechanism provided by the present invention;

[0034] Figure 4 The top view of the first feeding mechanism provided by the present invention;

[0035] Figure 5 The axonometric view of the feeding mechanism provided by the present invention;

[0036] Figure 6 The axonometric view of the pad printer provided by the present invention;

[0037] Figure 7 The axonometric view of the first splitting device provided by the present invention;

[0038] Figure 8 The axonometric view of the first oil coating device provided by the present invention;

[0039] Figure 9 The front view of the first oil coating device provided by the present invention;

[0040] Figure 10 The axonometric view of the first material transfer manipulator provided by the invention;

[0041] Figure 11 The front view of the first material transfer manipulator provided by the invention;

[0042] Figure 12 The axonometric view of the second feeding mechanism provided by the invention;

[0043] Figure 13 The axonometric view of the second splitting device provided by the invention;

[0044] Figure 14 The axonometric view of the runout detection device provided by the invention;

[0045] Figure 15Front view of the beating detection device provided for the invention;

[0046] Figure 16 Axonometric view of the material taking mechanism provided for the invention;

[0047] Figure 17 Axonometric view of the material receiving mechanism provided for the invention;

[0048] Figure 18 Front view of the material receiving mechanism provided for the invention;

[0049] Figure 19 Floor plan provided for Example 2.

[0050] Reference numerals:

[0051] 1. First feeding mechanism; 101. Horizontal conveyor belt; 102. Vertical conveyor belt; 103. Loading sensor; 104. Temporary storage area; 2. Loading mechanism; 201. Y-axis feeder; 202. Z-axis picker; 203. Clamping cylinder; 204. Vertical rod; 205. Material transfer sensor; 3. Positioning mechanism; 301. Forward pushing cylinder; 302. Driving motor; 303. Friction rubber wheel; 304. In-place sensor; 4. Pad printer; 401. Pad printer body; 402. Pad printing font steel plate; 5. First splitting device; 501. First driver; 502. First splitter; 503. First splitting disc; 504. Splitting positioning column; 6. Vision detection mechanism; 7. First oiling device; 701. Oiling positioning column; 702. Oiling vertical column; 703. Slide table; 704. Oiling cylinder; 705. Oiling gun; 706. Oil storage tank; 8. First material transfer manipulator; 801. Vertical column; 802. Double joint arm; 803. Lifting rod; 804. Claw; 9. Second feeding mechanism; 901. Frame; 902. Rotating motor; 903. Horizontal shaft cylinder; 904. Shifting cylinder; 905. Corner cylinder; 906. Shaft clamp; 907. Pushing material detector; 908. Hopper; 10. Recycling conveyor device; 11. Press; 12. Second splitting device; 1201. Bottom plate; 1202. Second splitter; 1203. Second driver; 1204. Second splitting disc; 1205. Elastic positioning column; 1206. Splitting probe; 13. Runout detection device; 1301. Detection positioning column; 1302. Plate frame; 1303. Rotating head cylinder; 1304. Rotating head motor; 1305. Rotating head; 1306. Detection cylinder; 1307. Buffer; 1308. Runout detection sensor; 14. Picking mechanism; 1401. Pallet; 1402. Cross movement module; 1403. Lifting module; 1404. Longitudinal movement module; 1405. Picking claw; 15. Second oiling device; 16. Second material transfer manipulator; 17. Receiving material mechanism; 1701. Material transfer channel; 1702. Full material sensor; 1703. Feeding sensor; 1704. Protective cover; 18. Machine table; 1001. Motor rotor; 1002. Motor shaft; 1003. Track; 1004. Logistics trolley. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0053] Embodiment 1

[0054] As Figures 1-18As shown in the figure, an automatic assembly and detection production line for a motor rotor includes a machine platform 18, and a first feeding mechanism 1, a loading mechanism 2, a pad printer 4, a first dividing device 5, a vision detection mechanism 6, a first oiling device 7, a first material transfer manipulator 8, a second feeding mechanism 9, a press 11, a second dividing device 12, a circular runout detection device 13, a material taking mechanism 14, a second oiling device 15, a second material transfer manipulator 16 and a material receiving mechanism 17 that are sequentially arranged on the machine platform 18. The loading mechanism 2, the positioning mechanism 3, the pad printer 4, the vision detection mechanism 6 and the first oiling device 7 are arranged at equal intervals around the first dividing device 5. The second feeding mechanism 9, the press 11 and the material taking mechanism 14 are arranged around the second dividing device 12. The runout detection device 13 and the second oiling device 15 are arranged side by side with the material taking mechanism 14, improving the utilization rate of space.

[0055] Preferably, the first feeding mechanism 1 includes a horizontal conveyor belt 101, a vertical conveyor belt 102, a feeding sensor 103 and a temporary storage area 104. The horizontal conveyor belt 101 is butt-jointed on one side of the vertical conveyor belt 102. The temporary storage area 104 is arranged at the end of the horizontal conveyor belt 101. The feeding sensor 103 is arranged on one side of the horizontal conveyor belt 101 and at the boundary of the temporary storage area 104, and is used to limit the number of motor rotors 1001 entering the temporary storage area 104, improving the stability of feeding and preventing the phenomena of material extrusion and stacking on the horizontal conveyor belt 101. The motor rotors 1001 are neatly arranged on the horizontal conveyor belt 101 in a rectangular array. The horizontal conveyor belt 101 advances a fixed distance each time in a step-by-step manner, transporting the whole row of motor rotors 1001 onto the vertical conveyor belt 102. The vertical conveyor belt 102 advances a fixed distance in a step-by-step manner, transporting a fixed number of motor rotors 1001 and stopping in the temporary storage area 104. The feeding sensor 103 is composed of a proximity sensor installed at the end of the temporary storage area 104 and a photoelectric sensor at the other boundary of the temporary storage area 104. The proximity sensor is used to detect whether there is a motor rotor 1001 in place at the feeding position, and the photoelectric sensor is used to detect the number of motor rotors 1001 in the temporary storage area 104 and the occupancy of the temporary storage area 104.

[0056] Preferably, the first dividing device 5 includes a first driver 501, a first divider 502, a first dividing disk 503 and a dividing positioning post 504. The first divider 502 is arranged on the machine table 18. The first driver 501 is connected to the first divider 502. The first dividing disk 503 is rotatably connected to the first divider 502. The dividing positioning post 504 is arranged on the first dividing disk 503. The second dividing device 12 includes a bottom plate 1201, a second divider 1202, a second driver 1203, a second dividing disk 1204 and an elastic positioning post 1205. The bottom plate 1201 is arranged on the machine table 18. The second divider 1202 is arranged on the bottom plate 1201. The second driver 1203 is connected to the second divider 1202. The second dividing disk 1204 is arranged on the second divider 1202. The elastic positioning post 1205 is arranged on the second dividing disk 1204. The first divider 502 and the second divider 1202 are cam dividers, which rely on the cams on the input shaft to be vertically engaged with the indexing disk for segmented rotation, and can be positioned and locked, so as to push the first dividing disk 503 and the second dividing disk 1204 to place at equal angles in a step-by-step manner, ensuring the accuracy of the moving position of the motor rotor 1001 thereon. In addition, the feeding mechanism 2, the positioning mechanism 3 and the pad printer 4 are arranged side by side on one side of the first dividing device 5, and act on the motor rotor 1001 in turn around the rotation direction of the first dividing device 5. Around the rotation direction of the first dividing device 5, the visual inspection mechanism 6 and the first oiling device 7 are arranged opposite to the first dividing device 5. A plurality of through holes are provided on the first dividing disk 503 and the second dividing disk 1204 for positioning the motor rotor 1001. During the rotation of the first dividing disk 503 and the second dividing disk 1204, each through hole can be aligned with the equipment for process treatment. Dividing probes 1206 are also arranged around the second dividing device 12 for position calibration.

[0057] Preferably, the elastic positioning post 1205 is composed of a spring, a shaft bowl and a guide post. The guide post is fixed on the second dividing disk 1204. The shaft bowl is slidably connected to the guide post. The spring is arranged between the shaft bowl and the second dividing disk 1204. A sink is provided in the middle of the shaft bowl for positioning the motor shaft 1002. The motor rotor 1001 can be placed in the shaft bowl. Under the pressure of the press 11, the motor shaft 1002 and the motor rotor 1001 are combined. The spring is compressed to gradually increase the combination pressure of the motor rotor 1001 and the motor shaft 1002, preventing damage caused by stress concentration.

[0058] Preferably, the first material transfer manipulator 8 and the second material transfer manipulator 16 have the same structure. The first material transfer manipulator 8 includes a column 801, a double-joint arm 802, a lifting rod 803, and a gripper 804. The column 801 is arranged on the machine table 18. The double-joint arm 802 is arranged on the column 801. The lifting rod 803 is helically connected in the double-joint arm 802. The gripper 804 is arranged at one end of the lifting rod 803. The first material transfer manipulator 8 and the second material transfer manipulator 16 are arranged along the width direction of the machine table 18. The two manipulators can move within the range with their columns 801 as the center and the range of the double-joint arms 802 as the radius, and can pick up and move the motor rotor 1001. The double-joint arm 802 can extend, contract, and rotate in a plane. The gripper 804 is a two-way pneumatic gripper. With its center as the reference, the teeth of the gripper 804 are recessed inward to position and clamp the outer wall of the motor rotor 1001. Due to the inclined plane self-centering principle, the accuracy of clamping the motor rotor 1001 is improved.

[0059] Preferably, the lifting rod 803 includes a grooved lead screw, a lead screw motor, and a guide sleeve. The grooved lead screw rotatably connected to the double-joint arm 802 is driven by the lead screw motor installed at the end of the double-joint arm 802 to move up and down. The guide sleeve is fixed on the double-joint arm 802 and cooperates with the vertical groove of the grooved lead screw, so that the grooved lead screw can only move up and down when driven and cannot rotate, improving the accuracy of the lifting movement. The lifting rod 803 only completes the lifting action by the movement of the grooved lead screw, which is simple and flexible.

[0060] Preferably, the first material transfer manipulator 8 is arranged between the first dividing device 5 and the second dividing device 12, and can transfer the motor rotor 1001 located on the first dividing device 5 to the second dividing device 12, and can also transfer the unqualified motor rotor 1001 to the recycling conveyor 10 for defective product separation.

[0061] The first oiling device 7 and the second oiling device 15 have the same structure. The first oiling device 7 includes an oiling positioning column 701, an oiling column 702, a sliding table 703, an oiling cylinder 704, an oiling gun 705, and an oil storage tank 706. The oiling positioning column 701 is arranged on the machine table 18. The oiling column 702 is arranged on one side of the oiling positioning column 701. The sliding table 703 is slidably connected to one side wall of the oiling column 702. The oiling cylinder 704 is connected to the sliding table 703. The oiling gun 705 is arranged on the sliding table 703. The oil storage tank 706 is arranged on the other side wall of the oiling column 702. The oiling gun 705 is communicated with the oil storage tank 706. The oiling cylinder 704 is a double-rod cylinder, which can improve the accuracy of the oiling gun 705 for oiling. The oiling gun 705 is connected to the oil storage tank 706 by a hose. The oil storage tank 706 is connected to an external oil supply device by a hose to provide oil and pressure for the oiling gun 705 to continuously complete the oiling action.

[0062] Further, the circular runout detection device 13 includes a runout detection positioning post 1301, a plate frame 1302, a swivel cylinder 1303, a swivel motor 1304, a swivel head 1305, a detection cylinder 1306, a buffer 1307, and a runout detection sensor 1308. The runout detection positioning post 1301 is arranged on the machine table 18. The plate frame 1302 is arranged around the runout detection positioning post 1301. The swivel cylinder 1303 is arranged on the top of the plate frame 1302. The swivel motor 1304 is arranged at one end of the swivel cylinder 1303. The swivel head 1305 is arranged on the output shaft of the swivel motor 1304. The runout detection sensor 1308 is arranged on the detection cylinder 1306. The detection cylinder 1306 is arranged inside the runout detection positioning post 1301 and is used to lift and lower the runout detection sensor 1308 so as to measure the internal circular runout tolerance of the motor rotor 1001 after the motor rotor 1001 is installed in place. Probes are arranged on both sides of the detection positioning post 1301 and are used to detect the in-place situation of the motor rotor 1001 to prevent the offset of the motor rotor 1001 from affecting the detection result.

[0063] Further, the second feeding mechanism 9 includes a frame 901, a rotating motor 902, a horizontal axis cylinder 903, a shifting cylinder 904, a corner cylinder 905, a shaft clamp 906, a feeding detector 907, and a hopper 908. The frame 901 is arranged on the machine table 18. The hopper 908 is arranged above the frame 901. The shifting cylinder 904 is arranged below the hopper 908. The horizontal axis cylinder 903 is slidably connected to the shifting cylinder 904. The rotating motor 902 is arranged on the horizontal axis cylinder 903. The corner cylinder 905 is arranged above the shifting cylinder 904 and is arranged side by side with the hopper 908. The shaft clamp 906 is rotatably connected to the corner cylinder 905. The horizontal axis cylinder 903 moves between the hopper 908 and the corner cylinder 905. The shifting cylinder 904 can transport the motor shaft 1002 that falls from below the hopper 908 to the shaft clamp 906. The rotating motor 902 rotates the motor shaft 1002 by 90°, so that the shaft clamp 906 can take out the motor shaft 1002 placed on the rotating motor 902 under the drive of the corner cylinder 905 and adjust its posture to make it stand upright, which is convenient for the first material transfer manipulator 8 to take away.

[0064] The feeding mechanism 2 includes a Y-axis feeder 201, a Z-axis material picker 202, a clamping cylinder 203, a vertical rod 204, and a material transfer sensor 205. The vertical rod 204 is arranged on the machine table 18. The Y-axis feeder 201 is arranged at the upper part of the vertical rod 204. The Z-axis material picker 202 is arranged on the Y-axis feeder 201. The clamping cylinder 203 is arranged on the Z-axis material picker 202. The material transfer sensor 205 is arranged on the side wall of the Z-axis material picker 202. The clamping cylinder 203 moves up and down to pick up the motor rotor 1001 on the first feeding mechanism 1, and then moves linearly to place it on the first dividing device 5 for feeding.

[0065] Preferably, the pad printer 4 includes a pad printer body 401, a cleaning mechanism, a pad printing font steel plate 402 and a pad printing rubber head. The pad printer body 401 is arranged on one side of the first dividing device 5. The pad printing font steel plate 402 is arranged on the pad printer body 401. The pad printing rubber head is located above the pad printing font steel plate. The cleaning mechanism is used to clean the pad printing font. When the motor rotor 1001 on the first dividing device 5 stops under the pad printing rubber head after being rotated by the first divider 502, the pad printing rubber head prints on the motor rotor 1001. After printing is completed, the cleaning mechanism cleans the font, and then prints on the next motor rotor 1001 again.

[0066] Preferably, the press 11 includes a press head. The second dividing device 12 passes under the press 11. The second dividing disk 1204 is driven by the second divider 1202 to rotate. The motor rotor 1001 on the second dividing disk 1204 presses the motor shaft 1002 into the motor rotor 1001 through the extrusion of the press 11. After completion, the second dividing disk 1204 rotates and the press 11 presses the next group of motor rotors 1001.

[0067] Preferably, the material taking mechanism 14 includes a pallet 1401, a horizontal movement module 1402, a lifting module 1403, a longitudinal movement module 1404 and a material taking claw 1405. The pallet 1401 is arranged on the machine table 18. The horizontal movement module 1402 is arranged on the pallet 1401. The longitudinal movement module 1404 is arranged on the horizontal movement module 1402. The longitudinal movement module 1404 is arranged on the lifting module 1403. The material taking claw 1405 is arranged on the lifting module 1403.

[0068] Preferably, two material taking claws 1405 are installed on the horizontal movement module 1402. The two material taking claws 1405 are arranged at intervals. The two material taking claws 1405 act simultaneously driven by the horizontal movement module 1402, the lifting module 1403 and the longitudinal movement module 1404, and complete the circular runout detection feeding and the oiling action of the motor shaft 1002 at one time, saving time, improving efficiency and reducing space occupation.

[0069] Preferably, the vision detection mechanism 6 includes a fixed rod, a light source and an industrial camera. The vision detection mechanism 6 is arranged on one side of the first dividing device 5. The fixed rod is installed adjacent to the first dividing disk 503. Both the light source and the industrial camera are installed on the fixed rod. The industrial camera is used to perform vision detection on the pad-printed motor rotor 1001 to distinguish the qualified products and defective products among them.

[0070] Preferably, a positioning mechanism 3 is further included. The positioning mechanism 3 is arranged between the feeding mechanism 2 and the pad printer 4. The positioning mechanism 3 includes a forward pushing cylinder 301, a driving motor 302, a friction rubber wheel 303 and a position sensor 304. The forward pushing cylinder 301 is arranged along the length direction of the machine table 18. The friction rubber wheel 303 is rotatably connected to the forward pushing cylinder 301. The position sensor 304 is installed above the forward pushing cylinder 301. After the positioning mechanism 3 receives the motor rotor 1001, the motor rotor 1001 is driven by the friction rubber wheel 303 to rotate and adjust the direction, and then is transported by the forward pushing cylinder 301 to be accurately positioned and fed onto the first dividing device 5.

[0071] Preferably, a recycling conveying device 10 is further included. The recycling conveying device 10 is arranged within the stroke range of the first material transfer manipulator 8. The recycling conveying device 10 includes a conveyor belt and a storage area. The conveyor belt transports the received motor rotor 1001 to the storage area. After a certain number of motor rotors are collected in the storage area, they are taken away by manual or external logistics equipment for rework or scrapping.

[0072] Preferably, the receiving mechanism 17 includes a profile frame, a plurality of material transfer channels 1701, a full material sensor 1702, a feeding sensor 1703 and a protective cover 1704. Conveyor belts are arranged in the plurality of material transfer channels 1701. The plurality of material transfer channels 1701 are arranged side by side. Different motor rotors 1001 of different masses or models are placed in different material transfer channels 1701. The feeding sensor 1703 is installed at the end of the material transfer channel 1701 for sensing the arrival signal of the motor rotor 1001. The full material sensor 1702 is arranged above the material transfer channel 1701. The full material sensor 1702 and the feeding sensor 1703 are spaced apart by a certain distance. The area of this interval on the material transfer channel 1701 is the storage area. After different types of motor rotors 1001 are transferred to the storage area by the conveyor belt, they wait to be taken away by manual or external logistics equipment. The plurality of material transfer channels 1701 are installed on the profile frame. The protective cover 1704 is arranged on the material transfer channel 1701 to separate the storage area and protect the motor rotors 1001 in the material transfer channel 1701.

[0073] The steps of the automatic assembly and detection method are as follows:

[0074] S1. Feeding: The motor rotors 1001 are arranged in a matrix form and placed on the first feeding mechanism 1, and the first feeding mechanism 1 conveys them forward in rows;

[0075] S2. Loading and positioning: The feeding mechanism 2 operates to successively place the motor rotors 1001 temporarily stored on the first feeding mechanism 1 onto the first dividing device 5 one by one. The first dividing device 5 makes a step-by-step rotation, and the positioning mechanism 3 pushes the motor rotor 1001 to rotate so that the motor rotor 1001 faces a fixed direction;

[0076] S3. Transfer printing and inspection: The first dividing device 5 makes a step rotation again and stops after entering below the pad printer 4. The pad printer 4 prints on the surface of the motor rotor 1001. After printing is completed, the first dividing device 5 makes a step rotation and enters below the vision inspection mechanism 6 and stops. The vision inspection mechanism 6 conducts vision inspection on the motor rotor 1001;

[0077] S4. First oiling: The first dividing device 5 makes a step rotation to move the motor rotor 1001 below the first oiling device 7. The first oiling device 7 injects oil into the shaft hole of the motor rotor 1001;

[0078] S5. Discharging: The first dividing device 5 makes a step rotation to move the motor rotor 1001 to an empty position, waiting for the first material transfer manipulator 8 to pick it up. After the first dividing device 5 completes one cycle, it is fed with materials again by the feeding mechanism 2. Each time the first dividing device 5 rotates one step, it completes five processes: feeding, positioning, transfer printing, inspection, and oiling;

[0079] S6. Shaft installation: The second feeding mechanism 9 adjusts the motor shaft 1002 to a predetermined position. The first material transfer manipulator 8 places the motor rotor 1001 and the motor shaft 1002 on the second dividing device 12, making the motor shaft 1002 under the motor rotor 1001. The second dividing device 12 makes a step rotation to move the motor rotor 1001 below the press 11, and the press 11 presses and installs the motor shaft 1002;

[0080] S6.1. The first material transfer manipulator 8 moves some of the motor rotors 1001 with unqualified inspection to the recycling conveyor 10;

[0081] S7. Runout detection and second oiling: The material taking mechanism 14 moves the motor rotor 1001 on the second dividing device 12 to the runout detection device 13 in an alternating action manner for runout detection of the motor rotor 1001, and at the same time moves the motor rotor 1001 on the runout detection device 13 to the second oiling device 15 for oiling;

[0082] S8. Unloading and storage: The second material transfer manipulator 16 takes away the motor rotor 1001 and places it on the material receiving mechanism 17 for classification, counting, and storage.

[0083] The specific working process of this automatic assembly and inspection production line is as follows:

[0084] The motor rotor 1001 is neatly stacked in matrix form by an external logistics device onto the transverse conveyor belt 101. The transverse conveyor belt 101 moves a certain distance in a step-by-step manner, causing a row of motor rotors 1001 longitudinally on the transverse conveyor belt 101 to move onto the longitudinal conveyor belt 102. At this time, the longitudinal conveyor belt 102 starts to rotate, and the entire row of motor rotors 1001 is sent into the temporary storage area 104. After the motor rotor 1001 touches the feeding sensor 103, the longitudinal conveyor belt 102 stops rotating. After the motor rotor 1001 in the temporary storage area 104 is taken out, the longitudinal conveyor belt 102 replenishes the material again. The feeding mechanism 2 grips the motor rotor 1001 in the temporary storage area 104. The Z-axis picker 202 moves downward to drive the clamping cylinder 203 to grip the motor rotor 1001, and then the Y-axis picker 201 moves longitudinally to align the clamping cylinder 203 with the dividing positioning post 504 on the first dividing disk 503 and place it on. The first dividing disk 503 rotates clockwise to drive the motor rotor 1001 to move under the positioning mechanism 3. At this time, the feeding mechanism 2 continues to feed, replenishing the motor rotor 1001 onto the first dividing disk 503. The forward push cylinder 301 and the friction rubber wheel 303 on the positioning mechanism 3 adjust the direction of the motor rotor 1001 so that it faces the pre-set angle. The first dividing disk 503 continues to rotate to move the motor rotor 1001 under the pad printer 4, and the pad printer 4 prints on the surface of the motor rotor 1001. After printing is completed, the first dividing disk 503 rotates at equal angles to move the motor rotor 1001 under the industrial camera, and the industrial camera inspects the motor rotor 1001, detecting the printing quality and the appearance quality of the motor rotor 1001, and transmitting the detection information into the control system. After the inspection is completed, the first dividing disk 503 continues to rotate by a fixed angle, moving the motor rotor 1001 under the first oiling device 7. The oiling gun 705 moves downward to inject lubricating oil into the shaft hole of the motor rotor 1001. After the oil injection is completed, the first dividing disk 503 rotates by a fixed angle to move the motor rotor 1001 to the acupuncture point position, waiting for the first material transfer manipulator 8 to pick it up. There are six dividing positioning posts 504 on the first dividing disk 503, corresponding to five processes and one empty position respectively. The five processes act simultaneously, improving the assembly efficiency. The first material transfer manipulator 8 takes out some of the motor rotors 1001 that have been oiled and sends them to the second dividing disk 1204 on the second dividing device 12, and the other part of the motor rotors 1001 that are unqualified in inspection are sent to the recycling conveyor device 10. The second dividing disk 1204 rotates clockwise, moving the motor rotor 1001 by a fixed angle. At this time, the flat shaft cylinder 903 on the second feeding mechanism 9 moves upward, takes out the motor shaft 1002 from the hopper 908, rotates the motor shaft 1002 by the rotating motor 902 to adjust the direction, and then the shifting cylinder 904 moves the motor shaft 1002 out to be close to the corner cylinder 905, sending the motor shaft 1002 to the shaft clamp 906. The shaft clamp 906 is rotated by the corner cylinder 905,Adjust the motor shaft 1002 to a vertical state, clamp it with the first material transfer manipulator 8, and place it on the elastic positioning post 1205. The second dividing disk 1204 sends the motor rotor 1001 and the motor shaft 1002 to the lower part of the press 11 at the same time. The press 11 presses the motor shaft 1002 into the motor rotor 1001. After the press-fitting is completed, the second dividing disk 1204 rotates a fixed distance twice to move the assembled motor rotor 1001 to the grasping range of the material taking mechanism 14. The two material taking claws 1405 on the material taking mechanism 14 can take the motor rotor 1001 on the second dividing disk 1204 and place it on the runout detection device 13, and take the motor rotor 1001 after the runout detection is completed and place it on the second oiling device 15 to apply antirust oil to the end of the motor shaft 1002. When the motor rotor 1001 is placed on the detection positioning post 1301 by the material taking mechanism 14, the rotating head 1305 descends and sleeves on the motor rotor 1001. The runout detection sensor 1308 moves upward under the drive of the detection cylinder 1306 and contacts the inner hole wall of the motor rotor 1001. At this time, the rotating head 1305 drives the motor rotor 1001 to rotate, and the runout detection sensor 1308 detects the inner hole wall of the motor rotor 1001 and feeds the detection result back to the control system. After the detection is completed, the material taking mechanism 14 moves the motor rotor 1001 to the second oiling device 15, and the second oiling device 15 applies antirust oil to the end of the motor shaft 1002. After completion, the second material transfer manipulator 16 takes it away and places it on the material receiving mechanism 17. According to the types of the specifications of the motor rotor 1001, the motor rotor 1001 can be placed in different material transfer channels 1701 for classification and conveyed backward by the material transfer channels 1701. After a whole column is filled, it is taken away by external logistics equipment or manually.

[0085] Embodiment 2

[0086] As Figure 19 shown, the same features as in Embodiment 1 will not be described in detail. The differences are that multiple automatic assembly and detection production lines for motor rotors are arranged side by side in the workshop. Tracks 1003 and logistics trolleys 1004 are provided at both ends of the production line. The production line and the logistics trolleys 1004 are uniformly allocated by the control system to realize the intelligent production of the assembly and transfer of the motor rotor 1001 and improve the automation and intelligent level of production.

[0087] According to the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above. Some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. An automatic assembly and detection production line for a motor rotor, characterized in that: It includes a machine platform (18), and a first feeding mechanism (1), a loading mechanism (2), a positioning mechanism (3), a pad printer (4), a first dividing device (5), a vision inspection mechanism (6), a first oiling device (7), a first material transfer manipulator (8), a second feeding mechanism (9), a press (11), a second dividing device (12), a runout detection device (13), a material picking mechanism (14), a second oiling device (15), a second material transfer manipulator (16) and a material receiving mechanism (17) which are sequentially arranged on the machine platform (18). The loading mechanism (2), the positioning mechanism (3), the pad printer (4), the vision inspection mechanism (6) and the first oiling device (7) are arranged at equal intervals around the first dividing device (5). The second feeding mechanism (9), the press (11) and the material picking mechanism (14) are arranged around the second dividing device (12). The runout detection device (13) and the second oiling device (15) are arranged side by side with the material picking mechanism (14). The first dividing device (5) includes a first driver (501), a first divider (502), a first dividing disk (503) and a dividing positioning post (504). The first divider (502) is arranged on the machine platform (18). The first driver (501) is connected to the first divider (502). The first dividing disk (503) is rotatably connected to the first divider (502). The dividing positioning post (504) is arranged on the first dividing disk (503). The second dividing device (12) includes a bottom plate (1201), a second divider (1202), a second driver (1203), a second dividing disk (1204) and an elastic positioning post (1205). The bottom plate (1201) is arranged on the machine platform (18). The second divider (1202) is arranged on the bottom plate (1201). The second driver (1203) is connected to the second divider (1202). The second dividing disk (1204) is arranged on the second divider (1202). The elastic positioning post (1205) is arranged on the second dividing disk (1204). The second feeding mechanism (9) comprises a frame (901), a rotating motor (902), a flat-axis cylinder (903), a shift cylinder (904), a corner cylinder (905), an axis clamp (906), a material push detector (907) and a hopper (908), wherein the frame (901) is arranged on the machine platform (18), the hopper (908) is arranged above the frame (901), the shift cylinder (904) is arranged below the hopper (908), the flat-axis cylinder (903) is slidably connected to the shift cylinder (904), the rotating motor (902) is arranged on the flat-axis cylinder (903), and the corner cylinder (905) is arranged above the shift cylinder (904). The material feeding mechanism (2) comprises a Y-axis material picker (201), a Z-axis material picker (202), a material clamping cylinder (203), a vertical rod (204) and a material transfer sensor (205); the vertical rod (204) is arranged on the machine platform (18); the Y-axis material picker (201) is arranged on the upper part of the vertical rod (204); the Z-axis material picker (202) is arranged on the Y-axis material picker (201); the material clamping cylinder (203) is arranged on the Z-axis material picker (202); and the material transfer sensor (205) is arranged on the side wall of the Z-axis material picker (202).

2. The motor rotor automatic assembly and testing production line according to claim 1 is characterized by: The first feeding mechanism (1) comprises a transverse conveyor belt (101), a longitudinal conveyor belt (102), a loading sensor (103) and a temporary storage area (104); the transverse conveyor belt (101) is arranged to be docked with one side of the longitudinal conveyor belt (102); the temporary storage area (104) is arranged at the end of the transverse conveyor belt (101); and the loading sensor (103) is arranged on one side of the transverse conveyor belt (101) and is located on the boundary of the temporary storage area (104).

3. The motor rotor automatic assembly and testing production line according to claim 1 is characterized in that: The first material-transferring robot (8) and the second material-transferring robot (16) have the same structure. The first material-transferring robot (8) comprises a column (801), a double-jointed arm (802), a lifting rod (803) and a clamp (804). The column (801) is arranged on the machine platform (18), the double-jointed arm (802) is arranged on the column (801), the lifting rod (803) is spirally connected to the double-jointed arm (802), and the clamp (804) is arranged on one end of the lifting rod (803).

4. The motor rotor automatic assembly and testing production line according to claim 3 is characterized by: The structures of the first oiling device (7) and the second oiling device (15) are the same. The first oiling device (7) includes an oiling positioning column (701), an oiling vertical column (702), a sliding table (703), an oiling cylinder (704), an oiling gun (705), and an oil storage tank (706). The oiling positioning column (701) is arranged on the machine table (18), the oiling vertical column (702) is arranged on one side of the oiling positioning column (701), the sliding table (703) is slidably connected to one side wall of the oiling vertical column (702), the oiling cylinder (704) is connected to the sliding table (703), the oiling gun (705) is arranged on the sliding table (703), the oil storage tank (706) is arranged on the other side wall of the oiling vertical column (702), and the oiling gun (705) is communicated with the oil storage tank (706).

5. The automatic assembly and detection production line for an electric motor rotor according to claim 4, wherein: The runout detection device (13) includes a runout detection positioning column (1301), a plate frame (1302), a rotating head cylinder (1303), a rotating head motor (1304), a rotating head (1305), a detection cylinder (1306), a buffer (1307), and a runout detection sensor (1308). The runout detection positioning column (1301) is arranged on the machine table (18), the plate frame (1302) is arranged around the runout detection positioning column (1301), the rotating head cylinder (1303) is arranged on the top of the plate frame (1302), the rotating head motor (1304) is arranged at one end of the rotating head cylinder (1303), the rotating head (1305) is arranged on the output shaft of the rotating head motor (1304), the runout detection sensor (1308) is arranged on the detection cylinder (1306), and the detection cylinder (1306) is arranged inside the runout detection positioning column (1301).

6. The automatic assembly and detection production line for an electric motor rotor according to claim 5, wherein: The material taking mechanism (14) includes a pallet (1401), a transverse movement module (1402), a lifting module (1403), a longitudinal movement module (1404), and a material taking claw (1405). The pallet (1401) is arranged on the machine table (18), the transverse movement module (1402) is arranged on the pallet (1401), the longitudinal movement module (1404) is arranged on the transverse movement module (1402), the longitudinal movement module (1404) is arranged on the lifting module (1403), and the material taking claw (1405) is arranged on the lifting module (1403).

7. The automatic assembly and detection production line for an electric motor rotor according to any one of claims 1-6, wherein: It further includes a recycling conveying device (10), and the recycling conveying device (10) is arranged within the stroke range of the first material transfer manipulator (8).

8. An automatic assembly and detection method for a motor rotor, characterized in that: Implemented by the automatic assembly and detection production line for an electric motor rotor according to any one of claims 1-7, including the following steps: S1. Feeding: The motor rotors (1001) are arranged in a matrix and placed on the first feeding mechanism (1), and the first feeding mechanism (1) conveys them row by row forward. S2. Loading and positioning: The loading mechanism (2) operates to successively place the motor rotors (1001) temporarily stored on the first feeding mechanism (1) onto the first dividing device (5) one by one. The first dividing device (5) makes a step rotation, and the positioning mechanism (3) pushes the motor rotor (1001) to rotate so that the motor rotor (1001) faces a fixed direction. S3. Pad printing and detection: The first dividing device (5) makes a step rotation again and stops under the pad printer (4). The pad printer (4) prints on the surface of the motor rotor (1001). After printing is completed, the first dividing device (5) makes a step rotation and enters under the vision detection mechanism (6) and stops. The vision detection mechanism (6) conducts vision detection on the motor rotor (1001). S4. First oiling: The first dividing device (5) makes a step rotation to move the motor rotor (1001) under the first oiling device (7), and the first oiling device (7) injects oil into the shaft hole of the motor rotor (1001). S5. Discharging: The first dividing device (5) makes a step rotation to move the motor rotor (1001) to an empty position, waiting for the first transfer manipulator (8) to pick it up. After the first dividing device (5) completes one cycle, the loading mechanism (2) feeds materials again. Each step of rotation of the first dividing device (5) completes five processes of feeding, positioning, pad printing, detection, and oiling. S6. Shaft installation: The second feeding mechanism (9) adjusts the motor shaft (1002) to a predetermined position. The first transfer manipulator (8) places the motor rotor (1001) and the motor shaft (1002) on the second dividing device (12) so that the motor shaft (1002) is under the motor rotor (1001). The second dividing device (12) makes a step rotation to move the motor rotor (1001) under the press (11), and the press (11) presses the motor shaft (1002). S7. Runout detection and second oiling: The picking mechanism (14) moves the motor rotor (1001) on the second dividing device (12) to the runout detection device (13) in an alternating motion manner to conduct runout detection on the motor rotor (1001), and at the same time moves the motor rotor (1001) on the runout detection device (13) to the second oiling device (15) for oiling. S8. Unloading and storage: The second transfer manipulator (16) picks up the motor rotor (1001) and places it on the receiving mechanism (17) for classification, counting, and storage.

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