Stator core calibration device for conical rotor three-phase asynchronous motor and use method of stator core calibration device

Abstract

The invention discloses a stator iron core calibration device for a conical rotor three-phase asynchronous motor and a use method thereof, and relates to the technical field of stator iron core production. The stator iron core calibration device comprises a working platform, a vibration motor is fixedly installed at the top end of the working platform, and a U-shaped shell is arranged above the vibration motor; the bottom end of the U-shaped shell is connected with the top end of the working platform through four damping springs, a vibration motor is installed at the bottom end of the U-shaped shell, the execution end of the vibration motor is in transmission connection with a positioning rod, a through hole allowing the positioning rod to penetrate through is formed in the bottom end of the U-shaped shell, and the inner diameter of the through hole is larger than the outer diameter of the positioning rod; a calibration rotor connected to the positioning rod in a sleeving mode is arranged in the U-shaped shell, the outer wall of the calibration rotor is matched with the inner wall of the stator iron core, a movable notch calibration mechanism is installed at the top end of the U-shaped shell, and the execution end of the notch calibration mechanism is used for being inserted into a notch of the stator iron core piece. And the notches of the plurality of stator iron core sheets are calibrated in cooperation with the vibration of the vibration motor.

Description

Technical Field

[0001] The invention patent relates to the field of stator core production technology, specifically a stator core calibration device for a conical rotor three-phase asynchronous motor and its use method. Background Art

[0002] The stator core is the core part of the stator in the motor (such as asynchronous motor, synchronous motor, etc.), which is mainly composed of stacked silicon steel sheets to provide a magnetic flux path and conduct electromagnetic energy. The stator core plays a very important role in the operation of the motor. The stator core is usually made of silicon steel sheets (also called silicon steel plates). This material has a high magnetic permeability and can effectively conduct electromagnetic fields. The silicon steel sheets are usually electroplated to reduce losses. In order to reduce hysteresis loss and eddy current loss, the stator core adopts a laminated structure. There will be a layer of insulating coating (such as paint film) between each steel plate, which helps to reduce eddy current loss. The slots of the stator core are used to place the stator winding coil. The accuracy of the slots directly affects the placement and fixation of the coils. If the slots are irregular or do not meet the design requirements, the coils cannot be accurately placed in the slots, and may even cause the coils to short-circuit or the windings to be irregular, thereby affecting the working efficiency and safety of the motor. In order to solve the above shortcomings, we provide an automatic and high-calibration conical rotor three-phase asynchronous motor stator core calibration device and its use method. Summary of the invention

[0003] The purpose of the present invention is to provide a stator core calibration device for a conical rotor three-phase asynchronous motor and a method of using the same to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the patent of the present invention provides the following technical solutions: a stator core calibration device for a conical rotor three-phase asynchronous motor, comprising a working platform, a vibration motor is fixedly installed on the top of the working platform, a U-shaped shell is arranged above the vibration motor, the bottom end of the U-shaped shell is connected to the top of the working platform through four shock-absorbing springs, a vibration motor is installed at the bottom end of the U-shaped shell, and the execution end of the vibration motor is transmission-connected with a positioning rod, a through hole is provided at the bottom end of the U-shaped shell for the positioning rod to pass through, the inner diameter of the through hole is greater than the outer diameter of the positioning rod, a calibration rotor sleeved on the positioning rod is arranged in the U-shaped shell, the outer wall of the calibration rotor matches the inner wall of the stator core, and a movable notch calibration mechanism is installed at the top of the U-shaped shell, the execution end of the notch calibration mechanism is used to insert into the notch of the stator iron core sheet, and cooperate with the vibration of the vibration motor to calibrate the notches of multiple stator iron core sheets.

[0005] Furthermore, two groups of moving units are symmetrically arranged on the upper parts of the outer walls on both sides of the U-shaped shell, and the slot calibration mechanism includes a connecting rod fixedly installed between the two groups of moving units and a calibration rod for inserting into the slot of the stator iron sheet, a fixing block for fixing the rotating motor is installed on the connecting rod, and a driving mechanism for driving the calibration rod to insert into the slot of the stator iron sheet is fixedly installed on the execution end of the rotating motor.

[0006] Furthermore, two transverse through grooves are symmetrically arranged on the upper part of the outer walls on both sides of the U-shaped shell, and the movable unit includes a mounting plate slidably connected to the top end of the outer wall of the U-shaped shell and two mounting frames symmetrically and fixedly arranged on the lower part of the outer walls on both sides of the mounting plate, a movable wheel with a bottom end engaged with the bottom end of the inner wall of the transverse through groove is rotatably arranged between the two mounting frames, a movable motor for driving the movable wheel to rotate is installed on the outer wall of the mounting frame away from the fixed block, and the connecting rod is fixedly installed between the two mounting plates.

[0007] Furthermore, the driving mechanism includes a box body whose rear outer wall is fixedly connected to the execution end of the rotating motor, and two jacks for the calibration rod to pass through are symmetrically arranged at the top and bottom ends of the box body, and two groups of driving units are symmetrically arranged in the box body, and the driving unit includes two driving wheels symmetrically arranged in the upper and lower parts, and the driving wheels are connected to the driven gears arranged on the rear side of the box body through a connecting shaft, and the connecting shaft is arranged to pass through the box body, and a driving gear is meshed between the two driven gears in the same group, and two special-shaped brackets are symmetrically installed on the rear stator iron sheet of the box body located on both sides of the rotating motor, and a driving motor for driving the corresponding side driving gear to rotate is installed on the rear stator iron sheet of the special-shaped bracket, and the driving gear is arranged between the box body and the special-shaped bracket, and the calibration rod passes between the two groups of driving units, and the outer wall of the calibration rod is in contact with the outer wall of the driving wheel.

[0008] Furthermore, a screw rod is rotatably connected between the two mounting brackets located above the connecting rod, a servo motor for driving the screw rod to rotate is installed on one of the mounting brackets, the fixed block is a screw seat and is threadedly connected to the screw rod, a U-shaped opening is provided at the bottom end of the fixed block, and the inner wall of the U-shaped opening is fitted with and slidably connected to the outer wall of the connecting rod.

[0009] Furthermore, two limiting grooves are symmetrically arranged at the bottom end of the inner wall of the U-shaped shell on the left and right sides of the through hole, and the limiting grooves are used for inserting the bottom end of the calibration rod, and the lateral length of the limiting grooves is greater than the radius of the stator core.

[0010] A method for using a stator core calibration device for a conical rotor three-phase asynchronous motor based on a stator core calibration device includes the following steps: S1: Sleeve the stator core onto the calibration rotor; S2: Start the moving unit, and the moving unit drives the notch calibration mechanism to move toward the positioning rod; S3: starting the rotating motor, which adjusts the inclination angle of the calibration rod to correspond to the inclination angle of the inner wall of the stator core; S4: Start the servo motor, which drives the fixing block through the screw rod to align the bottom end of the calibration rod with the notch at the top of the stator core above one of the limit slots; S5: starting the driving mechanism to drive the calibration rod to be inserted into the notch of the stator core until the bottom end of the calibration rod is inserted into the limit groove; S6: Start the vibration motor, which drives the stator core to vibrate through the positioning rod and the calibration rotor in turn, and cooperates with the calibration rod to limit the stator core slot to complete the calibration of the stator core.

[0011] The beneficial effects achieved by the present invention are: 1. The combination of the vibration motor and the calibration rotor drives the stator core to vibrate, and the calibration rod accurately limits the stator core slot, thus realizing efficient and accurate calibration of the stator core slot. This calibration method can not only quickly adjust the protruding stator core sheet, but also ensure the alignment of the slots of all stator core sheets, greatly improving the accuracy and efficiency of calibration.

[0012] 2. The calibration rotor in the device is replaceable to meet the calibration requirements of stator cores of different models. At the same time, the slot calibration mechanism is movable and angle-adjustable, and can flexibly adjust the position and inclination angle of the calibration rod according to the inclination angle of the inner wall of the stator core, further enhancing the applicability and flexibility of the device.

[0013] 3. Through remote control of the remote controller, the vibration motor, mobile motor, rotating motor and servo motor can be automatically controlled, thereby simplifying the operation process, reducing the degree of manual intervention, and improving production efficiency and convenience of operation.

[0014] 4. The U-shaped shell is connected to the working platform through a shock-absorbing spring, which effectively reduces the impact of vibration on the overall stability of the device. At the same time, the mobile unit adopts a combination design of mounting plate, mounting frame and moving wheels to ensure the stability and accuracy of the notch calibration mechanism during movement.

[0015] 5. After the calibration is completed, the calibration rod can be adjusted in the reverse direction to achieve secondary calibration, thereby further improving the accuracy and quality of the calibration. This design takes into account the strict requirements for calibration quality in the actual production process and provides a strong guarantee for the improvement of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of a stator core calibration device for a conical rotor three-phase asynchronous motor in Example 1; Figure 2 is a schematic structural diagram of the driving mechanism in the first embodiment; Figure 3 This is a flow chart of a method for using a stator core calibration device for a conical rotor three-phase asynchronous motor in Example 2. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings.

[0018] Embodiment 1

[0019] like Figure 1 As shown, the present invention discloses a stator core calibration device for a conical rotor three-phase asynchronous motor, comprising: a working platform 1, a vibration motor 3 is fixedly installed on the top of the working platform 1, a U-shaped shell 2 is arranged above the vibration motor 3, the bottom end of the U-shaped shell 2 is connected to the top of the working platform 1 through four shock-absorbing springs 7 (the two ends of the shock-absorbing spring 7 are respectively fixedly connected to the U-shaped shell 2 and the working platform 1), the bottom end of the U-shaped shell 2 is installed with a vibration motor 3, the execution end of the vibration motor 3 is transmission-connected with a positioning rod 31, the bottom end of the U-shaped shell 2 is provided with a through hole for the positioning rod 31 to pass through (shown in the figure), the inner diameter of the through hole is greater than the outer diameter of the positioning rod 31, a calibration rotor 4 sleeved on the positioning rod 31 is arranged in the U-shaped shell 2, the outer wall of the calibration rotor 4 matches the inner wall of the stator core, a movable notch calibration mechanism 5 is installed on the top of the U-shaped shell 2, the execution end of the notch calibration mechanism 5 is used to be inserted into the notch of the stator iron core sheet, and the notch of multiple stator iron core sheets is calibrated in cooperation with the vibration of the vibration motor 3.

[0020] Further, such as Figure 1 As shown, two groups of moving units 6 are symmetrically arranged on the upper part of the outer walls on both sides of the U-shaped shell 2, and the slot calibration mechanism 5 includes a connecting rod 51 fixedly installed between the two groups of moving units 6 and a calibration rod 54 (the execution end of the slot calibration mechanism 5) for inserting into the slot of the stator iron sheet, and a fixing block 52 for fixing the rotating motor 53 is installed on the connecting rod 51, and a driving mechanism 55 for driving the calibration rod 54 to insert into the slot of the stator iron sheet is fixedly installed on the execution end of the rotating motor 53.

[0021] Further, such as Figure 1As shown, two transverse through grooves 21 are symmetrically arranged on the upper part of the outer walls on both sides of the U-shaped shell 2, and the moving unit 6 includes a mounting plate 61 slidably connected to the top of the outer wall of the U-shaped shell 2 and two mounting frames 62 symmetrically and fixedly arranged on the lower part of the outer walls on both sides of the mounting plate 61, and a moving wheel 63 with a bottom end that is in contact with the bottom end of the inner wall of the transverse through groove 21 is rotatably arranged between the two mounting frames 62, and a moving motor 64 that drives the moving wheel 63 to rotate is installed on the outer wall of the mounting frame 62 away from the fixed block 52, and the connecting rod 51 is fixedly installed between the two mounting plates 61, and the opposite sides of the two mounting frames 62 on the same side are respectively in contact with the inner wall and outer wall of the U-shaped shell 2 and are slidably connected.

[0022] Further, such as Figure 1-2 As shown, the driving mechanism 55 includes a box body 551 whose rear outer wall is fixedly connected to the execution end of the rotating motor 53, and two jacks 552 for the calibration rod 54 to pass through are symmetrically arranged at the top and bottom of the box body 551. Two groups of driving units are symmetrically arranged in the box body 551. The driving unit includes two driving wheels 553 symmetrically arranged up and down. The driving wheel 553 is connected to a driven gear 554 arranged at the rear side of the box body 551 through a connecting shaft. The connecting shaft is arranged to penetrate the box body 551. A driving gear 555 is meshed between the driven gears 554, and two special-shaped brackets 556 are symmetrically installed on the rear stator iron core sheet of the box body 551 located on both sides of the rotating motor 53. A driving motor 557 for driving the corresponding side driving gear 555 to rotate is installed on the rear stator iron core sheet of the special-shaped bracket 556. The driving gear 555 is arranged between the box body 551 and the special-shaped bracket 556, and the calibration rod 54 passes between the two groups of driving units, and the outer wall of the calibration rod 54 is in contact with the outer wall of the driving wheel 553.

[0023] Further, such as Figure 1 As shown, a screw rod 56 is rotatably connected between two mounting brackets 62 located above the connecting rod 51, and a servo motor 561 for driving the screw rod 56 to rotate is mounted on one of the mounting brackets 62. The fixed block 52 is a threaded seat and is threadedly connected to the screw rod 56. A U-shaped opening is provided at the bottom end of the fixed block 52, and the inner wall of the U-shaped opening is in contact with the outer wall of the connecting rod 51 and is slidably connected.

[0024] Further, such as Figure 1 As shown, two limiting grooves 22 are symmetrically arranged at the bottom end of the inner wall of the U-shaped shell 2 located on the left and right sides of the through hole. The limiting groove 22 is used for the bottom end of the calibration rod 54 to be inserted, and the lateral length of the limiting groove 22 is greater than the radius of the stator core.

[0025] Furthermore, a remote controller (not shown) is included, and the vibration motor 3, the moving motor 64, the rotating motor 53 and the servo motor 561 are all connected to the remote controller signal.

[0026] Based on the above structure, Figure 1-2 As shown, when in use, first select the appropriate calibration rotor 4 according to the model of the stator core to be calibrated, and sleeve the calibration rotor 4 on the positioning rod 31, then sleeve the stator core on the calibration rotor 4, and the remote control starts the moving motor 64, and the moving motor 64 drives the moving wheel 63 to move along the transverse through slot 21. During this process, the mounting plate 61 slides along the top of the side wall of the U-shaped shell 2, and the moving unit 6 drives the notch calibration mechanism 5 to move toward the positioning rod 31 until the bottom end of the calibration rod 54 is aligned with any limit slot 22. Then, the inclination angle of the inner wall of the stator core of this model and the inclination direction of the calibration rod 54 are input into the remote control, and then the motor 53 is rotated. The rotating motor 53 adjusts the inclination angle of the calibration rod 54 to correspond to the inclination angle of the inner wall of the stator core. After the inclination angle of the calibration rod 54 is matched, the servo motor 561 is started. The servo motor 561 drives the fixing block 52 through the screw rod 56 to drive the calibration rod 54 to align with the notch at the top of the stator core above the corresponding limit slot 22 (for example, if the bottom end of the calibration rod 54 is tilted to the left, the calibration rod 54 moves to the left). Then the remote control starts the driving motor 557, and the two driving motors 557 rotate relative to and synchronously. The driving motor 557 drives the two driven gears 554 of the same unit to rotate in the same direction through the driving gear 555 through meshing. The driven gear 554 drives the calibration rod 54 to be inserted into the notch of the stator core through the connecting shaft driving wheel 553 until the bottom end of the calibration rod 54 is inserted into the limiting groove 22. Then the vibration motor 3 is started by the remote control, and the vibration motor 3 drives the stator core to vibrate through the positioning rod 31 and the calibration rotor 4 in turn, and cooperates with the calibration rod 54 to limit the notch of the stator core to complete the calibration of the stator core; Specifically, during the vibration process, the inner wall of the stator core slot will continuously contact the outer wall of the calibration rod 54, and the calibration rod 54 will generate a reaction force on the protruding stator core slot, thereby causing the protruding stator core to rotate until the slots of all stator cores are aligned, thereby completing the calibration.

[0027] Furthermore, after the calibration is completed, the calibration rod 54 located in the slot of the left stator core can be pulled out, and the inclination angle and inclination direction of the calibration rod 54 can be adjusted in the opposite direction, so that the calibration rod 54 can be inserted into the stator core slot in the symmetrical direction of the original calibration side for secondary calibration, thereby further ensuring the quality of the calibration.

[0028] Embodiment 2

[0029] See also Figure 3 A method for using a stator core calibration device for a conical rotor three-phase asynchronous motor based on a stator core calibration device includes the following steps: S1: Sleeve the stator core onto the calibration rotor 4; S2: Start the moving unit 6, and the moving unit 6 drives the notch calibration mechanism 5 to move toward the positioning rod 31; S3: starting the rotating motor 53, and adjusting the inclination angle of the calibration rod 54 to correspond to the inclination angle of the inner wall of the stator core; S4: starting the servo motor 561, which drives the fixing block 52 through the screw rod 56 to align the bottom end of the calibration rod 54 with the notch at the top of the stator core above one of the limiting slots 22; S5: Start the driving mechanism 55 to drive the calibration rod 54 to be inserted into the notch of the stator core until the bottom end of the calibration rod 54 is inserted into the limiting groove 22; S6: Start the vibration motor 3, which drives the stator core to vibrate through the positioning rod 31 and the calibration rotor 4 in turn, and cooperates with the calibration rod 54 to limit the stator core slot, thereby completing the calibration of the stator core.

[0030] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and invention concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stator core calibration device for a conical rotor three-phase asynchronous motor, comprising a working platform (1), characterized in that: A vibration motor (3) is fixedly mounted on the top of the working platform (1); a U-shaped housing (2) is arranged above the vibration motor (3); the bottom end of the U-shaped housing (2) is connected to the top of the working platform (1) via four shock-absorbing springs (7); the bottom end of the U-shaped housing (2) is mounted with the vibration motor (3); the execution end of the vibration motor (3) is transmission-connected to a positioning rod (31); the bottom end of the U-shaped housing (2) is provided with a through hole for the positioning rod (31) to pass through; the inner diameter of the through hole is greater than the outer diameter of the positioning rod (31); a calibration rotor (4) sleeved on the positioning rod (31) is arranged in the U-shaped housing (2); the outer wall of the calibration rotor (4) matches the inner wall of the stator core; a movable notch calibration mechanism (5) is installed at the top of the U-shaped housing (2); the execution end of the notch calibration mechanism (5) is used to be inserted into the notch of the stator core sheet and calibrate the notches of a plurality of stator core sheets in coordination with the vibration of the vibration motor (3).

2. The stator core calibration device for a conical rotor three-phase asynchronous motor according to claim 1, characterized in that: Two groups of moving units (6) are symmetrically arranged on the upper parts of the outer walls on both sides of the U-shaped housing (2); the notch calibration mechanism (5) comprises a connecting rod (51) fixedly mounted between the two groups of moving units (6) and a calibration rod (54) for inserting into the notch of the stator iron core sheet; a fixing block (52) for fixing the rotating motor (53) is mounted on the connecting rod (51); and a driving mechanism (55) for driving the calibration rod (54) to insert into the notch of the stator iron core sheet is fixedly mounted on the execution end of the rotating motor (53).

3. The stator core calibration device for a conical rotor three-phase asynchronous motor according to claim 2, characterized in that: Two transverse through slots (21) are symmetrically arranged on the upper part of the outer walls on both sides of the U-shaped shell (2); the moving unit (6) comprises a mounting plate (61) slidably connected to the top of the outer wall of the U-shaped shell (2) and two mounting frames (62) symmetrically and fixedly arranged on the lower part of the outer walls on both sides of the mounting plate (61); a moving wheel (63) whose bottom end is in contact with the bottom end of the inner wall of the transverse through slot (21) is rotatably arranged between the two mounting frames (62); a moving motor (64) for driving the moving wheel (63) to rotate is installed on the outer wall of the mounting frame (62) away from the fixed block (52); and the connecting rod (51) is fixedly installed between the two mounting plates (61).

4. The stator core calibration device for a conical rotor three-phase asynchronous motor according to claim 3, characterized in that: The driving mechanism (55) comprises a box body (551) whose rear outer wall is fixedly connected to the execution end of the rotating motor (53); two insertion holes (552) for the calibration rod (54) to pass through are symmetrically arranged at the top and bottom ends of the box body (551); two groups of driving units are symmetrically arranged in the box body (551); the driving units comprise two driving wheels (553) symmetrically arranged up and down; the driving wheels (553) are connected to a driven gear (554) arranged at the rear side of the box body (551) via a connecting shaft; the connecting shaft is arranged to penetrate the box body (551); and the two driving units in the same group are connected to the driven gear (554) arranged at the rear side of the box body (551). A driving gear (555) is meshed between the driven gears (554); two special-shaped brackets (556) are symmetrically mounted on the rear stator iron sheets of the box body (551) located on both sides of the rotating motor (53); a driving motor (557) for driving the corresponding driving gear (555) to rotate is mounted on the rear stator iron sheets of the special-shaped brackets (556); the driving gear (555) is arranged between the box body (551) and the special-shaped brackets (556); the calibration rod (54) passes between the two groups of driving units, and the outer wall of the calibration rod (54) is in contact with the outer wall of the driving wheel (553).

5. The stator core calibration device for a conical rotor three-phase asynchronous motor according to claim 4, characterized in that: A screw rod (56) is rotatably connected between the two mounting frames (62) located above the connecting rod (51), wherein a servo motor (561) for driving the screw rod (56) to rotate is mounted on one of the mounting frames (62), the fixing block (52) is a threaded seat and is threadedly connected to the screw rod (56), and a U-shaped opening is provided at the bottom end of the fixing block (52), and the inner wall of the U-shaped opening is in contact with and slidably connected to the outer wall of the connecting rod (51).

6. The stator core calibration device for a conical rotor three-phase asynchronous motor according to claim 5, characterized in that: Two limiting grooves (22) are symmetrically arranged at the bottom end of the inner wall of the U-shaped shell (2) located on the left and right sides of the through hole, and the limiting grooves (22) are used for the bottom end of the calibration rod (54) to be inserted, and the transverse length of the limiting grooves (22) is greater than the radius of the stator core.

7. The method for using the stator core calibration device for a conical rotor three-phase asynchronous motor according to claim 6 is characterized in that: The steps include: S1: Sleeve the stator core onto the calibration rotor (4); S2: starting the moving unit (6), the moving unit (6) driving the notch calibration mechanism (5) to move towards the positioning rod (31); S3: starting the rotating motor (53), and adjusting the inclination angle of the calibration rod (54) to correspond to the inclination angle of the inner wall of the stator core; S4: starting the servo motor (561), the servo motor (561) drives the fixing block (52) through the screw rod (56) to drive the bottom end of the calibration rod (54) to align with the notch at the top end of the stator core above one of the limit slots (22); S5: starting the driving mechanism (55) to drive the calibration rod (54) to be inserted into the notch of the stator core until the bottom end of the calibration rod (54) is inserted into the limiting groove (22); S6: starting the vibration motor (3), the vibration motor (3) drives the stator core to vibrate through the positioning rod (31) and the calibration rotor (4) in turn, and cooperates with the calibration rod (54) to limit the slot of the stator core, thereby completing the calibration of the stator core.

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