Motor stator core stamping device

Abstract

The utility model relates to the technical field of stamping dies, in particular to a motor stator core stamping device which comprises a rotary table and a stamping mechanism, and a limiting base and an abutting rod are arranged on the rotary table. The multiple limiting bases are arranged in the round edge direction of the rotary disc at equal angles. A side wall extending upwards is arranged at the round edge position of the rotating disc, and a through hole is formed in the position extending to the side wall from the circle center of the rotating disc to the limiting base. The abutting rod is arranged on the rotating disc in a penetrating mode through the through hole, the end, close to the limiting base, of the abutting rod is fixedly connected with an abutting block, and the abutting rod moves in the diameter direction of the rotating disc. The end, close to the abutting block, of the limiting base is open. The stamping mechanism comprises an air cylinder and a stamping block, and the stamping block is fixedly connected with an output shaft of the air cylinder. According to the utility model, the stator iron core can be conveniently taken out from the base after being stamped, and the problem that the stator iron core is inconvenient to take out due to a compact fixing mode in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping dies, in particular to a stamping device for a motor stator core. Background Art

[0002] A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. The stator core is a crucial component of the motor's magnetic circuit. Together with the rotor core and the air gap between the stator and rotor, it forms the motor's complete magnetic circuit. The stator core is typically produced through a stamping process. Currently, most stamping machines require manual removal of the part from the lower die after each process. However, due to the need to maintain the stability of the stator core during the stamping process, the stator core fits tightly against the lower die, making it difficult to remove after stamping, hindering continuous operation.

[0003] Chinese patent CN221773253U discloses a stamping die for a motor stator core. The servo motor is started to drive the turntable to rotate. The turntable drives the movable rod through the connecting rod, and the movable rod in turn drives the rotating block to rotate, so that the movable disk rotates in the movable groove, and then drives the lower die to rotate. When the movable rod rotates and is inserted into the slide groove, the rotating block rotates accordingly, driving the movable disk and the lower die to rotate to a certain position, so that the lower die on the lower side of the upper die can be rotated away, and at the same time, the next lower die rotates to the lower side of the upper die, ready for stamping. During this process, the turntable continues to rotate and is stuck in the limit groove. The arc-shaped outer wall of the turntable rotates in contact with the inner wall of the limit groove, so that the processed parts can be taken away, and the empty lower die can be placed on the parts to be processed. During the stamping process, the clamping assembly clamps the parts through the cooperation of the support column, the second slide groove and the spring to ensure that the parts are stable on the lower die and reduce the risk of the parts falling during rotation. The entire device achieves simultaneous loading, unloading, and stamping by continuously rotating and replacing the lower die, significantly improving work efficiency and practicality. However, after stamping, the lower die in this patent still fits tightly against the stator core. Failure to promptly remove the stamped parts during continuous operation could result in secondary stamping. Therefore, the lower die needs to be modified to allow for easy removal of the parts.

[0004] Therefore, while improving the device to a structure capable of continuous stamping, it is also necessary to simplify the process of placing and removing parts, shorten the time of placing and removing as much as possible, and ensure that the device can perform continuous stamping. Utility Model Content

[0005] To address the above problems, a motor stator core stamping device is provided. By cooperating with a limiting base and a tightening rod, the fastening state of the lower die to the part is changed, thereby solving the problem that the stator core is always tightly attached to the lower die after stamping, making it difficult to remove from the lower die.

[0006] In order to solve the problems of the existing technology, the utility model provides a motor stator core stamping device, including a turntable and a stamping mechanism, the turntable is provided with a limit base and a clamping rod; the limit base is provided with multiple equal angles along the circular edge of the turntable; the circular edge of the turntable has an upwardly extending side wall, and a through hole is provided at the position extending from the center of the turntable as the starting point to the position of the side wall in the direction of the limit base; the clamping rod is passed through the turntable through the through hole, and the end of the clamping rod close to the limit base is fixedly connected to a clamping block, and the clamping rod moves along the diameter direction of the turntable; the end of the limit base close to the clamping block is open; the stamping mechanism includes a cylinder and a stamping block, and the stamping block is fixedly connected to the output shaft of the cylinder.

[0007] Preferably, the clamping block passes through the turntable and is provided with a rotating wheel at a position away from the center of the turntable, and a guide track is provided under the rotating wheel; the rotating wheel abuts against the inner wall of the guide track; the guide track includes a clamping track and a separation track; when the rotating wheel is located in the clamping track, the clamping block and the stator core are in abutment state; when the rotating wheel is located in the separation track, the clamping block and the stator core are in a separated state; the guide track always remains stationary during the stamping operation, and the clamping track and the separation track are smoothly connected.

[0008] Preferably, the stamping mechanism is located close to one end of the abutment rail.

[0009] Preferably, the rotating wheel includes an upper moving wheel and a lower moving wheel; the lower moving wheel is located in the guide track and abuts against the inner wall of the guide track; the upper moving wheel is installed with a dust cover covering the space above it; the inner ring shape of the dust cover matches the inner ring shape of the guide track, and the upper moving wheel is located in the dust cover and abuts against the inner wall of the dust cover.

[0010] Preferably, a driving mechanism is provided at the bottom of the turntable; the driving mechanism includes a motor, a rotating disk and a rotating block; the rotating block is provided at the bottom of the turntable and fixedly connected to the turntable; the rotating disk abuts against the rotating block; the output shaft of the motor is fixedly connected to the rotating disk.

[0011] Preferably, the rotating block includes an adapting groove and a driving groove; the rotating block is a regular polygon; a plurality of adapting grooves are provided and are annularly opened at the side positions of the rotating block; a plurality of driving grooves are provided and are annularly opened at the intersection of adjacent two sides of the rotating block; the rotating disk includes a semicircular block and a driving block; the semicircular block matches the adapting groove and can abut against the adapting groove; the driving block is away from the semicircular block and can move in the driving groove along the long side direction of the driving groove; when the semicircular block abuts against the adapting groove, the turntable is in a stationary state; when the driving block moves in the driving groove, the turntable is in a rotating state.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The present invention achieves precise positioning and fixation of the stator core during the stamping process by providing a limiting base and a clamping rod on the turntable. This allows the stator core to be easily removed from the base after stamping, effectively resolving the problem of compact stator core fixing methods in the prior art that makes removal difficult. By moving the clamping rod, the clamping block abuts against the stator core, achieving a fixed effect, thereby improving the efficiency of the stamping operation and the forming quality of the core.

[0014] 2. The rotating wheel design in the present invention includes an upper moving wheel and a lower moving wheel. The lower moving wheel is located in the guide rail, and a dust cover is provided above the upper moving wheel. The dust cover not only protects the rotating wheel and the guide rail to prevent dust and other impurities from entering and affecting operation, but also the inner ring shape of the dust cover matches the inner ring shape of the guide rail, ensuring that the dust cover can fit tightly to the guide rail. The upper moving wheel is located in the dust cover and is tightly pressed against the inner wall of the dust cover. This design not only protects the rotating wheel, but also ensures the smooth movement of the rotating wheel in the guide rail, thereby improving the stability and durability of the device.

[0015] 3. The present invention utilizes a motor, a rotating disk, and a rotating block. The rotating block is a regular polygon with an adaptor slot and a drive slot. The rotating disk includes a semicircular block and a drive block. This allows the disk to achieve precise intermittent rotation. When the semicircular block abuts the adaptor slot, the disk is stationary and the stamping mechanism begins operating. When the drive block moves within the drive slot, the disk rotates, pushing the next stator core under the stamping mechanism, achieving continuous operation. This design improves the automation of stamping operations, reduces manual intervention, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a three-dimensional schematic diagram of a motor stator core stamping device.

[0017] Figure 2 The present invention is a three-dimensional schematic diagram of a guide track of a motor stator core stamping device.

[0018] Figure 3 The present invention is a top view of a guide track of a motor stator core stamping device.

[0019] Figure 4 The present invention is a three-dimensional schematic diagram of a dust cover of a motor stator core stamping device.

[0020] Figure 5 The present invention is a three-dimensional schematic diagram of a driving mechanism of a motor stator core stamping device.

[0021] Figure 6 The present invention is a structural exploded view of the driving mechanism of a motor stator core stamping device.

[0022] The numbers in the figure are: 1. turntable; 11. limit base; 12. clamping rod; 13. clamping block; 14. rotating wheel; 141. upper moving wheel; 142. lower moving wheel; 2. stamping mechanism; 21. cylinder; 22. stamping block; 3. guide rail; 31. clamping rail; 32. separation rail; 4. dust cover; 5. driving mechanism; 51. motor; 52. rotating block; 521. adapter slot; 522. driving slot; 53. rotating disk; 531. semicircular block; 532. driving block. DETAILED DESCRIPTION

[0023] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figures 1-6 As shown: A motor stator core stamping device includes a turntable 1 and a stamping mechanism 2, the turntable 1 is provided with a limiting base 11 and a clamping rod 12; the limiting base 11 is provided with multiple equal angles along the circular edge direction of the turntable 1; the circular edge position of the turntable 1 has an upwardly extending side wall, and a through hole is provided from the center of the turntable 1 as the starting point to the position extending to the limiting base 11 to the side wall; the clamping rod 12 is passed through the turntable 1 through the through hole, and the end of the clamping rod 12 close to the limiting base 11 is fixedly connected to a clamping block 13, and the clamping rod 13 moves along the diameter direction of the turntable 1; the end of the limiting base 11 close to the clamping block 13 is open; the stamping mechanism 2 includes a cylinder 21 and a stamping block 22, and the stamping block 22 is fixedly connected to the output shaft of the cylinder 21.

[0025] In the prior art, the fixing method of the stator core is relatively compact, which makes it inconvenient to take the stator core out of the lower die after the stamping is completed. To address this problem, a limiting base 11 is provided on the turntable 1, and the stator core is always located in the limiting base 11 during the stamping process. After the placement is completed, the clamping rod 12 is moved so that the clamping block 13 abuts against the stator core, thereby achieving a fixing effect on the stator core. At this time, the cylinder 21 pushes the stamping block 22 downward to stamp the stator core located between the limiting base 11 and the clamping block 13 to form it. The turntable 1 rotates continuously during the stamping process, so that each limiting base 11 can be aligned with the stamping position in turn, realizing continuous stamping operations, thereby efficiently producing the stator core of the motor 51.

[0026] Reference Figure 1-Figure 4As shown: the tightening block 13 passes through the turntable 1 and is equipped with a rotating wheel 14 at a position away from the center of the turntable 1, and a guide track 3 is provided under the rotating wheel 14; the rotating wheel 14 abuts against the inner wall of the guide track 3; the guide track 3 includes a tightening track 31 and a separation track 32; when the rotating wheel 14 is located in the tightening track 31, the tightening block 13 and the stator core are in an abutting state; when the rotating wheel 14 is located in the separation track 32, the tightening block 13 and the stator core are in a separated state; the guide track 3 always remains stationary during the stamping operation, and the tightening track 31 and the separation track 32 are smoothly connected.

[0027] During the stamping process, the wheel 14 moves along the guide track 3. When the wheel 14 moves to the clamping track 31, the clamping block 13 contacts the stator core and fixes the stator core together with the limiting base 11. When the wheel 14 moves to the separation track 32, the clamping block 13 separates from the stator core and the core is released. Therefore, workers can be arranged next to the separation track 32 to place the stator core to be processed and take out the stator core after stamping. The clamping track 31 and the separation track 32 are smoothly connected to ensure a smooth transition of the wheel 14 between the two tracks, and to achieve precise positioning and release of the stator core, so as to facilitate continuous stamping operations and carry out efficiently.

[0028] Reference Figure 1-Figure 4 As shown, the punching mechanism 2 is located close to one end of the abutting rail 31 , and the punching mechanism 2 does not interfere with the space at one end of the separating rail 32 .

[0029] Since the punching mechanism 2 is close to one end of the clamping rail 31, the punching mechanism 2 can smoothly perform the punching operation when the clamping block 13 fixes the stator core. The punching mechanism 2 is far away from one end of the separation rail 32, so the loading and unloading process of the stator core will not be blocked by the punching mechanism 2.

[0030] Reference Figure 1-Figure 4 As shown: the rotating wheel 14 includes an upper moving wheel 141 and a lower moving wheel 142; the lower moving wheel 142 is located in the guide track 3; a dust cover 4 covering the space above the upper moving wheel 141 is installed; the inner ring shape of the dust cover 4 matches the inner ring shape of the guide track 3, and the upper moving wheel 141 is located in the dust cover 4 and is tightly pressed against the inner wall of the dust cover 4.

[0031] The lower moving wheel 142 is located in the guide rail 3 and is responsible for moving along the guide rail 3 to achieve abutment and separation between the clamping block 13 and the stator core; a dust cover 4 is provided above the upper moving wheel 141 to protect the rotating wheel 14 and the guide rail 3 to prevent dust and other impurities from entering and affecting operation; the inner ring shape of the dust cover 4 matches the inner ring shape of the guide rail 3 to ensure that the dust cover 4 can fit tightly against the guide rail 3; the upper moving wheel 141 is located in the dust cover 4 and is pressed against the inner wall of the dust cover 4, thereby protecting the rotating wheel 14 and ensuring smooth movement of the rotating wheel 14 in the guide rail 3.

[0032] Reference Figures 1-6 As shown: a driving mechanism 5 is provided at the bottom of the turntable 1; the driving mechanism 5 includes a motor 51, a rotating disk 53 and a rotating block 52; the rotating block 52 is provided at the bottom of the turntable 1 and is fixedly connected to the turntable 1; the rotating disk 53 abuts against the rotating block 52; the output shaft of the motor 51 is fixedly connected to the rotating disk 53.

[0033] The rotating block 52 is fixed to the bottom of the turntable 1 to provide support for the stable rotation of the turntable 1; when the motor 51 is running, it drives the rotating disk 53 to rotate through the output shaft, and then drives the rotating block 52 and the turntable 1 to rotate together, realizing continuous rotation of the turntable 1.

[0034] Reference Figures 1-6 As shown: the rotating block 52 includes an adapting groove 521 and a driving groove 522; the rotating block 52 is a regular polygon; a plurality of adapting grooves 521 are provided and are annularly opened at the side positions of the rotating block 52; a plurality of driving grooves 522 are provided and are annularly opened at the intersection of the adjacent two sides of the rotating block 52; the rotating disk 53 includes a semicircular block 531 and a driving block 532; the semicircular block 531 matches the adapting groove 521 and can abut against the adapting groove 521; the driving block 532 is away from the semicircular block 531 and can move in the driving groove 522 along the long side direction of the driving groove 522; when the semicircular block 531 abuts against the adapting groove 521, the turntable 1 is in a stationary state; when the driving block 532 moves in the driving groove 522, the turntable 1 is in a rotating state.

[0035] The rotating block 52 has multiple adapting slots 521 and driving slots 522. When the semicircular block 531 abuts the adapting slots 521, the turntable 1 is stationary, and the punching mechanism 2 begins to work, punching the stator core. As the driving block 532 moves within the driving slots 522, the turntable 1 pushes the next stator core under the punching mechanism 2, achieving continuous operation.

[0036] The turntable 1 is provided with a plurality of limit bases 11 distributed at equal angles for positioning the iron core; a clamping rod 12 is provided next to each limit base 11, which is connected to the turntable 1 through a through hole on the side wall of the turntable 1, and a clamping block 13 is provided at one end of the clamping rod 12 for fixing the iron core. The stamping mechanism 2 is composed of a cylinder 21 and a stamping block 22. The stamping block 22 is connected to the output shaft of the cylinder 21 and is responsible for stamping the iron core. The rotating wheel 14 includes an upper moving wheel 141 and a lower moving wheel 142. The lower moving wheel 142 moves in the guide track 3. The guide track 3 is divided into a clamping track 31 and a separation track 32 to control the contact state between the clamping block 13 and the iron core. A dust cover 4 is provided above the upper moving wheel 141 to protect the rotating wheel 14 and the guide track 3. The drive mechanism 5 at the bottom of the turntable 1 consists of a motor 51, a rotating disk 53, and a rotating block 52. The rotating block 52 is fixed to the bottom of the turntable 1 and abuts against the rotating block 52. The motor 51 drives the rotating disk 53 to rotate via the output shaft, thereby driving the turntable 1. The rotating block 52 is designed as a regular polygon and has an adapting slot 521 and a driving slot 522. The turntable 53 includes a semicircular block 531 and a driving block 532. The semicircular block 531 matches the adapting slot 521, and the driving block 532 moves within the driving slot 522 to control the rotation and stationary state of the turntable 1. Through the coordination of these components, the entire device achieves the positioning, fixing, stamping, and release of the iron core, as well as the intermittent rotation of the turntable 1, thereby realizing continuous and efficient stamping operations.

[0037] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A motor stator core stamping device, comprising a turntable (1) and a stamping mechanism (2), characterized in that: The turntable (1) is provided with a limit base (11) and a tightening rod (12); The limiting bases (11) are provided with a plurality of equal angles along the circular edge direction of the turntable (1); The circular edge of the turntable (1) has a side wall extending upward, and a through hole is provided at a position extending from the center of the turntable (1) as a starting point to the position of the side wall in the direction of the limiting base (11); The pressing rod (12) is provided on the turntable (1) through a through hole, and one end of the pressing rod (12) close to the limiting base (11) is fixedly connected to a pressing block (13), and the pressing rod (12) moves along the diameter direction of the turntable (1); One end of the limiting base (11) close to the pressing block (13) is opened; The punching mechanism (2) comprises a cylinder (21) and a punching block (22), and the punching block (22) is fixedly connected to the output shaft of the cylinder (21).

2. The motor stator core punching device according to claim 1, characterized in that: The pressing block (13) passes through the turntable (1) and is provided with a rotating wheel (14) at a position away from the center of the turntable (1), and a guide track (3) is provided below the rotating wheel (14); The rotating wheel (14) abuts against the inner wall of the guide track (3); The guide track (3) includes a pressing track (31) and a separating track (32); When the rotating wheel (14) is located in the abutting track (31), the abutting block (13) and the stator core are in abutting contact state; When the rotating wheel (14) is located in the separation track (32), the abutting block (13) and the stator core are in a separated state; The guide rail (3) always remains in a stationary state during the punching operation, and the abutting rail (31) and the separating rail (32) are smoothly connected.

3. The motor stator core punching device according to claim 2, characterized in that: The punching mechanism (2) is located at one end close to the abutting track (31).

4. The motor stator core punching device according to claim 2, characterized in that: The rotating wheel (14) includes an upper moving wheel (141) and a lower moving wheel (142); The lower moving wheel (142) is located in the guide track (3) and abuts against the inner wall of the guide track; A dust cover (4) is installed on the upper moving wheel (141) to cover the space above the upper moving wheel; The inner ring shape of the dust cover (4) matches the inner ring shape of the guide track (3), and the upper moving wheel (141) is located in the dust cover (4) and is tightly pressed against the inner wall of the dust cover (4).

5. The motor stator core punching device according to claim 1, characterized in that: A driving mechanism (5) is provided at the bottom of the turntable (1); The driving mechanism (5) includes a motor (51), a rotating disk (53) and a rotating block (52); The rotating block (52) is arranged at the bottom of the turntable (1) and is fixedly connected to the turntable (1); The rotating disk (53) abuts against the rotating block (52); The output shaft of the motor (51) is fixedly connected to the rotating disk (53).

6. The motor stator core punching device according to claim 5, characterized in that: The rotating block (52) includes an adapting groove (521) and a driving groove (522); The rotating block (52) is a regular polygon; The adapting grooves (521) are provided in a plurality and are annularly opened at the side of the rotating block (52); The driving grooves (522) are provided in a plurality and are annularly opened at the intersection of adjacent two sides of the rotating block (52); The rotating disk (53) includes a semicircular block (531) and a driving block (532); The semicircular block (531) matches the adapting groove (521) and can abut against the adapting groove (521); The driving block (532) is away from the semicircular block (531) and is capable of moving in the driving groove (522) along the long side direction of the driving groove (522); When the semicircular block (531) abuts against the adapting groove (521), the turntable (1) is in a stationary state; When the driving block (532) moves in the driving slot (522), the turntable (1) is in a rotating state.

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