Search

CN-117960909-B - Device for eliminating same plate difference of motor rotor sheet

CN117960909BCN 117960909 BCN117960909 BCN 117960909BCN-117960909-B

Abstract

The invention discloses a device for eliminating the same plate difference of motor rotor sheets, which relates to the field of motor stator and rotor processing and aims to solve the problems of lower equipment automation degree, high working strength of workers and low principle utilization rate in the existing device, and comprises a steel coil support frame, wherein a leveling machine, a first punching machine, a servo feeder and a second punching machine are sequentially and fixedly connected to the side edge of the steel coil support frame along the punching procedure of a steel plate, the first punching machine and the second punching machine respectively comprise a power device, an upper die seat, a lower die seat, a carrier plate and an angle regulator, the upper die seat is positioned at the lower side of the power device, the carrier plate is positioned at the bottom of the upper die seat, the angle regulator is positioned in the upper die seat, the first punching machine and the second punching machine finish a punching die through vertical movement of the upper die seat relative to the lower die seat, a material taking opening is formed in the second side edge, a fixing frame is arranged at the lower side of the material taking opening, a waste restraint device is arranged on the fixing frame, and the side edge of the fixing frame is fixedly connected with a steel plate rolling frame, and the advantages are that: the utilization rate of the raw material steel plate is improved, the same plate difference is reduced in a rotary punching mode, the stability of a motor rotor is guaranteed, production steps are simplified, and industrial productivity is improved.

Inventors

  • ZHU XIAODONG
  • HE YONGHUI
  • ZHAO RONGRONG
  • LI YABING
  • Zhu Rongbang
  • SONG XIAOLI

Assignees

  • 河南永荣动力股份有限公司

Dates

Publication Date
20260505
Application Date
20240229

Claims (7)

  1. 1. The device for eliminating the same plate difference of the motor rotor sheet is characterized by comprising a steel coil supporting frame, wherein a leveling machine (2), a first punching machine (3), a servo feeder (4) and a second punching machine (5) are sequentially and fixedly connected to the side edge of the steel coil supporting frame along the punching process of a steel coil, the first punching machine (3) and the second punching machine (5) comprise a power device, an upper die holder (6), a lower die holder (7), a carrier plate (8) and an angle regulator, the upper die holder (6) is positioned at the lower side of the power device, the carrier plate (8) is positioned at the bottom of the upper die holder (6), the angle regulator is positioned in the upper die holder (6), the first punching machine (3) and the second punching machine (5) finish punching dies through vertical movement of the upper die holder (6) relative to the lower die holder (7), a material taking opening (10) is formed in the side edge of the second punching machine (5), a fixing frame (11) is arranged at the lower side of the material taking opening (10), a waste restraint device (12) is arranged on the fixing frame (11), and the side edge of the fixing frame (11) is fixedly connected with a steel coil frame (13). The angle regulator comprises a grooved pulley (901), a driving plate (902), a first gear (903), a second gear (904) and a driving shaft (905), wherein the grooved pulley (901) is fixedly connected with a carrier plate (8), the driving plate (902) is matched with one side of the grooved pulley (901), the first gear (903) is fixedly connected with the driving plate (902), the first gear (903) and the second gear (904) are meshed in the radial direction, the second gear (904) is fixedly connected with the driving shaft (905), a first guide groove (906), a second guide groove (907) and a third guide groove (908) are formed in the driving shaft (905), the first guide groove (906) surrounds the driving shaft (905) along a circle, the first end and the tail end of the first guide groove (906) are vertically connected with the second guide groove (907), the groove depth of the lower end of the second guide groove (907) is larger than the groove depth of the lower end of the first guide groove (906), the groove depth of the upper end of the second guide groove (907) is smaller than the first guide groove (908), the first guide groove (907) is deeper than the third guide groove (908), and the first guide groove (906) is communicated with the upper end of the first guide groove (906), and the first guide groove (906) is deeper than the third guide groove (908) A connecting pin (909) is connected in a sliding manner in the second guide groove (907) and the third guide groove (908), a fixed block (910) is connected in a sliding manner to the connecting pin (909), a spring (911) for applying force to the connecting pin (909) outwards is arranged between the fixed block (910) and the connecting pin (909), and the fixed block (910) is fixedly connected to the first punching machine (3) or the second punching machine (5); the waste restraint device (12) comprises an upper pressing roller (1201) and a lower pressing roller (1202), the distance between the upper pressing roller (1201) and the lower pressing roller (1202) is equal to the thickness of a steel coil, and the upper pressing roller (1201) and the lower pressing roller (1202) are both in rotary connection with a fixed frame (11); The lower sides of the carrier plates (8) are fixedly connected with stamping heads, the bottoms of the carrier plates (8) of the first stamping machine (3) are fixedly connected with first stamping heads (26), second stamping heads (28) are arranged on the sides of the first stamping heads (26), first blanking holes (27) are formed in the lower sides of the first stamping heads (26), a plurality of second blanking holes (29) distributed at equal angles are formed in a lower die holder (7) below the second stamping heads (28), the number of the second blanking holes (29) corresponds to the number of grooves of the grooved wheels (901), and the first blanking holes (27) and the second blanking holes (29) are located on the lower die holder (7) of the first stamping machine (3); The utility model discloses a waste bin, including first blanking hole (27) and second blanking hole (29), first blanking hole (27) with second blanking hole (29) downside is equipped with leak (30), leak (30) are round platform structure, leak (30) below is equipped with waste bin (31).
  2. 2. The device for eliminating the same plate difference of the motor rotor sheet as described in claim 1, wherein a material taking device is arranged on the upper sides of the fixing frame (11) and the steel coil winding frame, a material taking component of the material taking device is higher than the material taking opening (10), and a material carrying plate (14) is matched below the material taking device.
  3. 3. The device for eliminating the same plate difference of the motor rotor sheet according to claim 2, wherein the material taking device comprises a first support (15), a first sliding table (16), a tray (17) and a first electromagnetic chuck (18), a sliding rail (19) for sliding the first sliding table (16) is arranged on the first support (15), the first sliding table (16) is fixedly connected with the tray (17), the lower side of the tray (17) is fixedly connected with the first electromagnetic chuck (18), the material carrying plate (14) is slidably connected with a fixed table (20), and the fixed table (20) is fixedly connected with the fixed frame (11).
  4. 4. The device for eliminating the same plate difference of the motor rotor sheet as described in claim 2, wherein the material taking device comprises a second support (21), a second sliding table (22), a circulating device (23) and a plurality of second electromagnetic chucks (24), the second sliding table (22) is in sliding connection with the second support (21), the circulating device (23) is arranged on the second sliding table (22), and the second electromagnetic chucks (24) are fixedly arranged on the circulating device (23) at equal intervals.
  5. 5. The device for eliminating the same plate difference of the motor rotor sheet as in claim 2, wherein the blanking rod (25) is fixedly connected to the middle part of the material carrying plate (14).
  6. 6. The device for eliminating the same plate difference of the motor rotor sheet as described in claim 1, wherein a leveling roller (32) is rotatably connected to the leveling machine (2), a synchronization mechanism is arranged between the leveling roller (32) and the lower pressing roller (1202), the synchronization mechanism comprises a first belt wheel (33), a second belt wheel (34) and a belt (35), the first belt wheel (33) is fixedly connected with the leveling roller (32), the second belt wheel (34) is fixedly connected with the lower pressing roller (1202), and the belt (35) is arranged on the first belt wheel (33) and the second belt wheel (34).
  7. 7. The method of using the device for eliminating the difference between the rotor sheets and the plate of the motor according to claim 1, wherein a bundle of steel coils is fixed on a steel coil supporting frame, one side of the steel coils is straightened and paved through a leveling machine (2) after the steel coils are unwound, the paved steel coils enter a first punching machine (3), a servo feeder (4) on the side edge of the first punching machine (3) pulls the steel coils to move, the servo feeder (4) stops after a certain distance of movement, a power device on the first punching machine performs punching of a first procedure on the steel coils through an upper die holder (6), punched scraps fall into a scrap pool (31) through a first blanking hole (27) and a second blanking hole (29), then an angle adjuster drives a carrier plate (8) on the upper die holder (6) to rotate when the steel coils passing through the first procedure are driven by the servo feeder (4), when the center of a through hole formed in the first procedure is detected to be aligned with the center of a second punching machine (5), the punched scrap is also acted on the carrier plate (8) of the second punching machine (5) when the punching machine (5) is detected, the punched scrap is punched on the carrier plate (8) of the same size as the second punching machine (5) after the punching machine (6) is adjusted to rotate, thereby guarantee that the die hole corresponds with the recess of die side, the panel that punches out is got through getting material mouth (10), and afterwards discarded panel is rolled up by coil of strip rolling frame (13) through mount (11).

Description

Device for eliminating same plate difference of motor rotor sheet Technical Field The invention relates to the technical field of motor stator and rotor processing, in particular to a device for eliminating the same plate difference of motor rotor sheets. Background In an electric machine, both the stator and the rotor require an iron core to transmit and concentrate the magnetic field. Since iron is a magnetic material, it can effectively guide and concentrate magnetic field lines, thereby improving the efficiency of the motor. However, if the core is made of one piece of iron, a large amount of eddy current loss and hysteresis loss are generated inside the core in the alternating magnetic field, resulting in heating of the core and lowering the efficiency of the motor. To solve this problem, engineers have designed the core to be made up of a stack of thin steel sheets. In this way, many tiny air gaps are formed between the steel sheets, so that the eddy current loop is effectively cut off, the eddy current loss is reduced, and at the same time, the hysteresis loss of the thin steel sheets is relatively low, so that the design can significantly improve the efficiency of the motor. The existing stator and rotor core punching sheets of the large motor mostly take a high-speed single-slot punching machine as a production mode of a basic production unit, but because the steel plates have movable thickness deviation among different sides in the production process, if the angle of the punching sheets does not change in the punching sheet process, the error of the steel plates can be increased by geometric multiple after the punching sheets are overlapped, thereby leading the produced motor to generate vibration, and affecting the performance of the motor. The Chinese patent with the application number of CN201720534110.5 discloses a placing rack for placing silicon steel sheet raw material plates, which comprises a placing rack body, wherein a rotating shaft is arranged below the placing rack, a servo motor is connected with the rotating shaft, the servo motor is connected with a control rotating shaft, a photoelectric tube is arranged on the side face of the placing rack, the photoelectric tube and the servo motor are connected with a control device, the photoelectric tube measures the quantity of the processed silicon steel sheet raw material plates and transmits information to the control device, and the servo motor rotates the rotating shaft by 90 degrees after a certain quantity of silicon steel sheet raw material plates are taken out from the placing rack body. The steel plate is divided into different small parts, the same plate difference is eliminated in a mode of changing angles and placing the divided steel plates, but in the actual use process, constructors need to cut the steel plates firstly, the cut steel plates are loaded with materials to be manually pushed to a blanking area for blanking, the steel plates need to be manually transported during construction, the degree of automation is low, the working strength of workers is high, in addition, the steel plates are cut into blocks, the size of each steel plate is larger than the size of a plate to be punched, the waste materials of the steel plates after blanking are increased, and the production cost is increased. In summary, the existing device for eliminating the companion difference of the motor rotor has the problems of low working efficiency and low principle utilization rate, and is not beneficial to improving the productivity and benefit of factories. Disclosure of Invention Aiming at the situation, in order to overcome the defects of the prior art, the invention provides a method and a device for eliminating the same plate difference of motor rotor plates, which solve the problems of lower equipment automation degree, high working strength of workers and low principle utilization rate in the prior device. The steel coil support frame comprises a steel coil support frame, wherein a leveling machine, a first punching machine, a servo feeder and a second punching machine are sequentially and fixedly connected to the side edge of the steel coil support frame along the punching process of a steel plate, the first punching machine and the second punching machine comprise a power device, an upper die holder, a lower die holder, a carrier plate and an angle regulator, the upper die holder is positioned at the lower side of the power device, the carrier plate is positioned at the bottom of the upper die holder, the angle regulator is positioned in the upper die holder, the first punching machine and the second punching machine finish punching by vertical movement of the upper die holder relative to the lower die holder, a material taking opening is formed in the side edge of the second punching machine, a fixing frame is arranged on the lower side of the material taking opening, a waste restraint device is arranged on the fixing frame, and the s