CN113814318B

CN113814318B - Production process of motor iron core

Info

Publication number: CN113814318B
Application number: CN202111124810.4A
Authority: CN
Inventors: 吴俊金
Original assignee: Zhejiang Shiri Electromechanical Technology Co ltd
Current assignee: Zhejiang Shiri Electromechanical Technology Co ltd
Priority date: 2021-09-25
Filing date: 2021-09-25
Publication date: 2023-07-04
Anticipated expiration: 2041-09-25
Also published as: CN113814318A

Abstract

The application relates to a production process of a motor iron core, which relates to the field of iron core production and comprises the following steps: a. the steel strip is arranged on a through hole stamping station of a stamping device to be stamped into through holes on a plurality of stamping sheets with different rotation angles; b. placing the steel strip with the punched through holes on a profile punching station of a punching device to punch to form a punching sheet profile, and obtaining a punching sheet; c. then rotating a second die on a profile stamping station of the stamping device, so that the second die corresponds to the position of the next stamping to be processed on the steel belt, stamping again to form the profile of the next stamping and laminating the next stamping onto the last stamping; d. and c, repeating the step c to obtain the iron core. The production process of the iron core punching device adopts the mode that through holes of punching sheets under different angles are manufactured in advance and then the punching appearance is formed, so that all the punching sheets after lamination are aligned with each other when the thickness uniformity of the iron core is improved, the precision and the quality of iron core production are improved, and the iron core production is more convenient.

Description

Production process of motor iron core

Technical Field

The application relates to the field of iron core production, in particular to a production process of a motor iron core.

Background

The motor iron core is generally manufactured by laminating a plurality of punching sheets, the punching sheets are produced by adopting punching steel belts, and as the thickness of the steel belts at different positions can be different, the thickness difference of the manufactured iron core at different positions can be amplified after the lamination of the plurality of punching sheets, so that the properties of dynamic balance, concentricity and the like of the iron core are easily influenced.

In the related art, a rotating mechanism is generally arranged on a female die of a die, and when lamination is performed, the female die is driven to rotate by the rotating mechanism, so that parts with the same thickness on adjacent steel strips are staggered, and the situation that thickness difference brought by lamination is amplified is reduced.

However, some punching sheets are provided with lugs on the periphery due to actual processing, and after the punching sheets are stacked in a rotating mode, the lugs on the adjacent punching sheets are stacked irregularly, so that the iron core is difficult to produce, and the iron core is to be improved.

Disclosure of Invention

In order to solve the problem that the lugs on adjacent punched sheets are not orderly stacked after the punched sheets with the lugs at the periphery are stacked, the application provides a production process of a motor iron core.

The production process of the motor iron core adopts the following technical scheme:

a production process of a motor iron core comprises the following steps:

a. the steel strip is arranged on a through hole punching station of a punching device to punch through holes on a plurality of punching sheets with different rotation angles, the rotation angles of the plurality of punching sheets are multiples of 360 degrees divided by the angle degrees of the number of lugs on the punching sheets, and the rotation angles among the punching sheets are inconsistent;

b. placing the steel strip with the punched through holes on a profile punching station of a punching device to punch to form a punching sheet profile, and obtaining a punching sheet;

c. then rotating a second die on a profile stamping station of the stamping device, so that the second die corresponds to the position of the next stamping to be processed on the steel belt, stamping again to form the profile of the next stamping and laminating the next stamping onto the last stamping;

d. and c, repeating the step c to obtain the iron core.

Through adopting above-mentioned technical scheme, adopt the mode that makes the through-hole under the rotatory different angles of punching sheet in advance and carry out the punching press appearance again for each punching sheet after the lamination is when improving iron core thickness degree of consistency, and the lug on each punching sheet aligns each other, has improved the precision and the quality of production iron core, makes the production iron core more convenient.

Preferably, the stamping device comprises a machine body, a plurality of through hole stamping stations and an outline stamping station are arranged on the machine body, the number of the through hole stamping stations is corresponding to the number of lugs on a stamping sheet, the through hole stamping stations comprise a female die I arranged on the machine body and a male die I connected to the machine body in a sliding manner, a driving piece I is further arranged on the machine body, the driving piece I drives a plurality of male dies I to move, a limiting assembly is arranged on the male die I, and the limiting assembly is used for blocking the male dies I from impacting the female dies I;

the appearance stamping station comprises a female die II and a driving piece II which are arranged on the machine body, and a male die II which is connected to the machine body in a sliding manner, wherein the driving piece II drives the male die II to move, a driving piece IV is further arranged on the machine body, and the driving piece IV drives the female die II to rotate.

Through adopting above-mentioned technical scheme, when producing the iron core, place the steel band on die one of first through-hole punching station department, after the punching press forms the through-hole, the steel band that moves forward for the part that the next waiting to punch is located die one of second through-hole punching station department on the steel band, stops the terrace die one of other through-hole punching station departments through spacing subassembly simultaneously, makes when punching the through-hole through the through-hole punching station, has reduced the damage that the terrace die one of other through-hole punching station departments carries out the re-punching to the through-hole that has punched and lead to.

Then, the steel belt with the punched through hole is placed at the second position of the female die, the second driving part drives the second male die to move so as to punch the steel belt on the second female die to form the shape of a punching sheet, then the steel belt is moved so that the next part to be punched of the steel belt is located on the second female die, the fourth driving part is controlled to drive the second female die to rotate, the second female die is aligned with the next part to be punched of the steel belt, the second male die is driven to punch the steel belt on the second female die, the next punching sheet can be manufactured, the punching sheet is overlapped on the last punching sheet, and the operations of moving the steel belt, rotating the second female die and punching are repeated, so that the iron core with more uniform thickness can be manufactured.

Preferably, the first male die comprises a mounting part arranged on the first driving member and a stamping part connected to the mounting part in a sliding manner, the limiting assembly comprises a penetrating rod penetrating through the mounting part and the stamping part and a third driving member arranged on the mounting part, and the third driving member drives the penetrating rod to slide through or slide away from the stamping part.

By adopting the technical scheme, the mounting part, the stamping part, the penetrating rod and the driving part III are arranged, when stamping is not needed, the driving part III is controlled to drive the penetrating rod to slide and separate from the stamping part, at the moment, when the driving part I drives the male die I to move, the stamping part is abutted against the steel strip on the female die I and slides to be close to the mounting part, so that the stamping part does not generate pressure on the steel strip on the female die I, and the stamping part is blocked from stamping the steel strip on the female die I, so that the blocking of the male die I from impacting the female die I is more convenient; when the first driving part drives the first male die to move, the stamping part abuts against the steel belt on the first female die and stamps the steel belt.

Preferably, the machine body is provided with a receiving groove, the inner wall of the receiving groove is provided with a first guide plate and a second guide plate, the first guide plate and the second guide plate are arranged oppositely, and one end, away from the junction of the second guide plate and the inner wall of the receiving groove, of the second guide plate is located right below the first guide plate.

Through adopting above-mentioned technical scheme, set up and connect silo, deflector first and deflector second, the waste material that the punching press produced drops to on deflector first and the deflector second from the notch that connects the silo to in falling into and connecing the silo through the space between deflector first and the deflector second, thereby collecting the waste material, reduced the waste material and remained on the working face of organism and then influence the condition of punching press, and can carry out recycle with the waste material of collecting afterwards, reduced the material extravagant.

The impact force generated by the second impact die of the male die can cause the machine body to vibrate and drive the waste in the receiving groove to generate jumping, the jumping direction of the waste is consistent with the impact force direction generated by the second impact die of the male die, and as the end, far away from the junction of the guide plate and the inner wall of the receiving groove, of the guide plate is positioned under the guide plate I, the gap opening between the guide plate I and the guide plate II is staggered towards the jumping direction of the waste, so that the jumping waste can be blocked, the condition that the waste in the receiving groove shakes out of the receiving groove under vibration is reduced, and the collecting effect on the waste is better.

Preferably, the discharge gate that connects the silo intercommunication has been seted up on the lateral wall of organism, connect articulated on the inner wall of silo to have the baffle, the baffle is located connect the silo with one side that the discharge gate is relative, connect still be provided with the lid on the inner wall of silo and close the elastic support piece of discharge gate, the lower extreme of elastic support piece with connect the inner wall connection of silo, the upper end of elastic support piece with the baffle is close to the one end of discharge gate is connected.

Through adopting above-mentioned technical scheme, set up discharge gate, baffle and elastic support piece, thereby the elastic support piece butt supports the baffle in the baffle, simultaneously, the elastic support piece lid closes the discharge gate to reduce debris and fall into from the discharge gate and connect in the silo.

In the process of collecting the waste material by the material receiving groove, the waste material is continuously piled up in the material receiving groove, the total weight of the waste material in the material receiving groove is continuously increased, the total weight of the waste material is greater than the bearing of the elastic supporting block, the partition board is downwards folded and drives the upper end of the elastic supporting block to deform in the direction away from the discharge hole, and then the discharge hole is exposed, and at the moment, the waste material slides out of the discharge hole along the partition board and the elastic supporting block.

When the total weight of the residual waste is smaller than that of the elastic supporting block, the elastic supporting block resets and covers the discharge hole again to plug the discharge hole, automatic discharge after the waste is piled up and automatic plug of the discharge hole after the discharge can be realized, so that the waste can be continuously collected by the receiving groove, and the waste in the receiving groove is not required to be manually cleaned frequently by a worker.

Preferably, the receiving groove is arranged around the second female die, a material bearing plate is further arranged on the inner wall of the receiving groove, the material bearing plate is located at one side, away from the discharge hole, of the partition plate, and a vibrating piece is arranged below the material bearing plate.

By adopting the technical scheme, the vibration piece is arranged, when the waste is collected, the vibration generated by the second impact die of the second male die is transmitted to the vibration piece, the vibration piece vibrates and drives the material bearing plate to vibrate, the vibration amplitude of the material bearing plate is enlarged, the waste is easier to pave on the material bearing plate, and enough space is reserved for the waste to fall into the material receiving groove for collection; when the waste material slides out from the discharge hole, the second punch and the second impact die drive the vibrating piece to vibrate, and then drive the material bearing plate to vibrate, so that the waste material is easier to drop and slides out from the discharge hole, and the situation that the waste materials are blocked mutually and cannot slide out from the discharge hole is reduced.

Preferably, the machine body is further provided with a limiting frame, the limiting frame is located on two opposite sides of the second female die, a penetrating area is formed by splicing the limiting frame and the second female die, the penetrating area is located above the second female die, and the penetrating area is used for penetrating steel belts.

Through adopting above-mentioned technical scheme, set up spacing and wear to establish the region, wear to establish the region with the steel band, thereby carry out spacingly to the steel band in the steel band through spacing butt to steel band and terrace die two align, and reduced the condition that the punching sheet takes place to shift in the punching press process, be favorable to improving the precision that the punching press made the punching sheet appearance.

Preferably, the limiting frame comprises two vertical rods and a connecting part, the connecting part is positioned between the two vertical rods and connected with the two vertical rods, the connecting part is positioned above the second female die, and the outer side wall of the connecting part is coated with an elastic layer.

Through adopting above-mentioned technical scheme, set up pole setting, connecting portion and elastic layer, when the steel band wears to establish the region of wearing, support tightly in the steel band through the elastic layer to scrape down dust and debris with steel band surface adhesion, with the influence of reduction dust and debris to the punching press, and the frictional resistance between accessible elastic layer and the steel band realizes the relative positioning between steel band and the die two, reduces the condition that the steel band takes place to remove in the punching press in-process, has further improved the precision of punching press.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the production process adopts the mode that through holes of the punched sheets are manufactured in advance and rotated at different angles and then the punching appearance is carried out, so that the lugs on each punched sheet are mutually aligned while the thickness uniformity of the iron core is improved, the precision and the quality of the iron core are improved, and the iron core is produced more conveniently;

2. by arranging the mounting part, the stamping part, the penetrating rod and the driving part III, when stamping is not needed, the driving part III is controlled to drive the penetrating rod to separate from the stamping part, so that the stamping part does not generate pressure on the steel strip on the die I, the stamping part is blocked for stamping, and when stamping is needed, the driving part III is controlled to drive the penetrating rod to penetrate the stamping part, so that the relative positioning between the mounting part and the stamping part is realized, and the steel strip can be stamped through the stamping part;

3. by arranging the first guide plate and the second guide plate, the gap opening between the first guide plate and the second guide plate is staggered towards the jumping direction of the waste, so that the jumping waste can be blocked, the condition that the waste in the receiving groove shakes out of the receiving groove under vibration is reduced, and the waste collecting effect is better;

4. through setting up discharge gate, baffle and elastic support piece, when the bearing that the waste material total weight is greater than the elastic support piece, the baffle turns over downwards and drives the elastic support piece and take place deformation, and then expose the discharge gate so that the waste material roll-off, when remaining waste material total weight is less than the elastic support piece, the elastic support piece covers the discharge gate again, can realize the automatic discharging after the waste material is piled up and the automatic shutoff of discharge gate after the ejection of compact for connect the silo can collect the waste material constantly, and need not the manual waste material in the frequent clearance of staff connect the silo.

Drawings

FIG. 1 is an overall schematic of an embodiment of the present application;

FIG. 2 is a block diagram of the embodiment of the present application taken along the body and mounting portion, mainly showing the structure of the first driving member;

FIG. 3 is an enlarged view of the portion A of FIG. 2, mainly showing the structure of the spacing assembly;

FIG. 4 is a block diagram of the embodiment of the present application taken along the machine body, mainly showing the structure of the driving member IV;

FIG. 5 is a block diagram of an embodiment of the present application partially sectioned at an elastic layer, mainly showing the structure of a limiting frame;

fig. 6 is a block diagram of the embodiment of the present application, which is taken along the body, mainly showing the structure of the vibrating piece;

fig. 7 is an enlarged view of the portion B of fig. 6, mainly showing the structure of the partition plate and the elastic support block.

Reference numerals illustrate: 1. a body; 2. a through hole punching station; 21. a female die I; 22. a male die I; 221. a mounting part; 222. a punching part; 3. a profile stamping station; 31. a female die II; 32. a male die II; 33. a second driving piece; 4. a first driving member; 5. a chute; 6. a limiting block; 61. a limit groove; 7. a limit component; 71. a rod is penetrated; 72. a third driving member; 8. a driving member IV; 81. a driving motor; 82. a gear; 83. a toothed ring sleeve; 84. a toothed belt; 9. a limiting frame; 91. a vertical rod; 92. a connection part; 10. an elastic layer; 11. a penetrating area; 12. a receiving groove; 13. a first guide plate; 14. a second guide plate; 15. a discharge port; 16. a partition plate; 17. an elastic support block; 18. a material bearing plate; 19. and a vibrating piece.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a production process of a motor iron core, which comprises the following steps:

a. the steel strip is arranged on a through hole stamping station 2 of a stamping device to be stamped into through holes on a plurality of stamping sheets with different rotation angles, the rotation angles of the stamping sheets are multiples of 360 degrees divided by the angle degrees of the number of lugs on the stamping sheets, and the rotation angles among the stamping sheets are inconsistent;

b. placing the steel strip with the punched through holes on an outline stamping station 3 of a stamping device for stamping to form a stamping outline, and obtaining a stamping;

c. then, rotating a second die 31 on a profile stamping station 3 of the stamping device, so that the second die 31 corresponds to the position of the next stamping to be processed on the steel belt, stamping again to form the profile of the next stamping, and laminating the profile on the last stamping;

d. and c, repeating the step c to obtain the iron core.

The embodiment of the application also discloses a stamping device, see fig. 1, stamping device includes organism 1, is equipped with a plurality of through-hole punching stations 2 and an appearance punching station 3 on the organism 1, and the quantity of through-hole punching stations 2 corresponds the lug quantity setting on the punching sheet, and a plurality of through-hole punching stations 2 are even interval distribution along the horizontal direction. Each through hole stamping station 2 comprises a female die 21 and a male die 22, wherein the female die 21 is fixed on the machine body 1, and the male die 22 is positioned above the female die 21 and slides on the machine body 1 in a lifting manner.

Referring to fig. 1, a first driving member 4 is further fixed on the machine body 1, the first driving member 4 is located above the first male die 22, in this embodiment, the first driving member 4 includes a cylinder and a connecting rod, the cylinder is fixed on the machine body 1, a piston rod of the cylinder is disposed towards the first male die 22, the connecting rod is located below the piston rod of the cylinder and fixedly connected with the piston rod of the cylinder, and the connecting rod is disposed horizontally.

Referring to fig. 2, each male die 22 includes a mounting portion 221 and a punching portion 222, the mounting portion 221 is located below the connecting rod and is fixedly connected with the connecting rod, a chute 5 is formed at the lower end of the mounting portion 221, and the punching portion 222 is located below the mounting portion 221 and is lifted and slipped in the chute 5. Two limiting blocks 6 are formed on the outer side wall of the stamping part 222 in an outward extending mode, and the two limiting blocks 6 are respectively located on two opposite sides of the stamping part 222 in the vertical direction. The limiting grooves 61 are formed in the inner wall of the sliding groove 5, the positions and the number of the limiting grooves 61 and the positions and the number of the limiting blocks 6 are in one-to-one correspondence, the limiting grooves 61 are used for being clamped by the corresponding limiting blocks 6, when the punching part 222 slides in the sliding groove 5, the punching part 222 drives the two limiting blocks 6 to lift and slide in the corresponding limiting grooves 61, the limiting blocks 6 are abutted to the inner wall of the limiting grooves 61, and therefore the punching part 222 is limited, and the situation that the punching part 222 slides to be separated from the mounting part 221 is reduced. In this embodiment, the pressing portion 222 and the stopper 6 are integrally provided.

In actual use, the cylinder drives the connecting rod to lift, the connecting rod drives the plurality of mounting parts 221 to lift together, and the mounting parts 221 slide on the machine body 1 through the cooperation lifting of the cylinder and the connecting rod.

Referring to fig. 3, each mounting portion 221 is provided with a limiting component 7, the limiting component 7 is used for blocking the first male die 22 from impacting the first female die 21, the limiting component 7 comprises a penetrating rod 71 and a third driving member 72, the penetrating rod 71 is located on one side of the mounting portion 221 along the vertical direction, the penetrating rod 71 horizontally penetrates through the mounting portion 221 and the stamping portion 222 towards the direction close to the stamping portion 222, the third driving member 72 is fixed on the outer side wall of the mounting portion 221, a piston rod of the third driving member 72 faces the penetrating rod 71 and is fixedly connected with one end, far away from the stamping portion 222, of the penetrating rod 71, and the third driving member 72 drives the penetrating rod 71 to slide through or slide to be separated from the corresponding stamping portion 222. In this embodiment, the third driving member 72 is a cylinder.

Referring to fig. 2, the profile stamping station 3 includes a second die 31, a second punch 32 and a second driving member 33, the second die 31 is fixed on the machine body 1, the second punch 32 is located above the second die 31 and slides on the machine body 1 in a lifting manner, the second driving member 33 is located above the second punch 32 and is fixedly connected with the machine body 1, a piston rod of the second driving member 33 faces the second punch 32 and is fixedly connected with the second punch 32, and the second driving member 33 drives the second punch 32 to lift. In this embodiment, the second driving member 33 is a cylinder.

Referring to fig. 4, a driving member four 8 is further provided on the machine body 1, the driving member four 8 includes a driving motor 81, a gear 82, a toothed ring sleeve 83 and a toothed belt 84, the driving motor 81 is fixed on the machine body 1, the gear 82 is coaxially fixed on an output shaft of the driving motor 81, the toothed ring sleeve 83 is sleeved on the outer side of the female die two 31 and fixedly connected with the female die two 31, and the toothed belt 84 is tensioned on the outer sides of the gear 82 and the toothed ring sleeve 83 and meshed with the gear 82 and the toothed ring sleeve 83.

In actual use, the driving motor 81 drives the gear 82 to rotate, the gear 82 drives the toothed belt 84 to rotate through meshed cooperation with the toothed belt 84, and then drives the toothed ring sleeve 83 and the second die 31 to rotate, the second die 31 is connected to the machine body 1 through cooperation rotation among the driving motor 81, the gear 82, the toothed ring sleeve 83 and the toothed belt 84, and the rotation axis of the second die 31 is in vertical arrangement.

Referring to fig. 4 and 5, two limiting frames 9 are further fixed on the machine body 1, the two limiting frames 9 are respectively located at two opposite sides of the second female die 31, each limiting frame 9 comprises two vertical rods 91 and a connecting portion 92, the two vertical rods 91 are vertically arranged and fixed on the machine body 1, the two vertical rods 91 are arranged at intervals, the connecting portion 92 is located between the two vertical rods 91 and located above the second female die 31, and two opposite ends of the connecting portion 92 are respectively fixedly connected with the upper ends of the two vertical rods 91, so that the two vertical rods 91 are connected. The outer sidewall of the connecting portion 92 is coated with an elastic layer 10, and in this embodiment, the elastic layer 10 is made of rubber.

Referring to fig. 4, a connection portion 92 on the two limiting frames 9, the upright posts 91 and the upper end face of the second die 31 are spliced to form a penetrating area 11, the penetrating area 11 is located above the second die 31, and the penetrating area 11 is used for penetrating a steel belt.

When the steel belt wears to establish the region 11, thereby two spacing 9 butt are carried out spacingly to the steel belt in the steel belt through pole setting 91, and connecting portion 92 on the spacing 9 is supported tightly in the steel belt through elastic layer 10 simultaneously to scrape dust and debris on steel belt surface, and the frictional resistance between accessible elastic layer 10 and the steel belt realizes the relative positioning between steel belt and die two 31.

Referring to fig. 6 and 7, a receiving groove 12 is formed in the outer side wall of the machine body 1, which is close to the second female die 31, the receiving groove 12 is arranged around the second female die 31 and the two limiting frames 9, a first guide plate 13 and a second guide plate 14 are fixed on the inner wall of the receiving groove 12, the length directions of the first guide plate 13 and the second guide plate 14 are all arranged along the length direction of the receiving groove 12, the first guide plate 13 and the second guide plate 14 are oppositely arranged, and the second guide plate 14 is located in an area surrounded by the first guide plate 13. The distance between the first guide plate 13 and the second guide plate 14 is gradually reduced downwards, and one end of the second guide plate 14, which is far away from the connection part of the second guide plate and the inner wall of the receiving groove 12, is positioned right below the first guide plate 13.

Referring to fig. 4 and 7, a discharge hole 15 is formed in the outer side wall of the machine body 1, the discharge hole 15 is located below the second guide plate 14 and is communicated with the receiving groove 12, a partition plate 16 is hinged to the inner wall of the receiving groove 12, the partition plate 16 is located below the second guide plate 14 and is located on one side, opposite to the discharge hole 15, of the receiving groove 12, the hinge axis of the partition plate 16 is horizontally arranged, an elastic supporting block 17 is fixed to the inner wall of the receiving groove 12, the elastic supporting block 17 is located on one side, close to the discharge hole 15, of the receiving groove 12 and covers the discharge hole 15, the lower end of the elastic supporting block 17 is located below the discharge hole 15 and is fixedly connected with the inner wall of the receiving groove 12, and the upper end of the elastic supporting block 17 is fixedly connected with one end, close to the discharge hole 15, of the partition plate 16.

Referring to fig. 6 and 7, a material bearing plate 18 is further fixed on the inner wall of the material receiving groove 12, the material bearing plate 18 is located at one side of the partition plate 16 away from the material outlet 15 and is horizontally arranged, and opposite ends of the material bearing plate 18 are located at opposite sides of the partition plate 16 and are mutually attached to opposite ends of the partition plate 16.

When the total weight of the waste stacked in the receiving groove 12 is greater than the bearing of the elastic supporting block 17, the partition plate 16 is turned downwards and drives the upper end of the elastic supporting block 17 to deform in a direction away from the discharge hole 15, so that the discharge hole 15 is exposed, and then the waste in the receiving groove 12 slides out of the discharge hole 15 along the partition plate 16 and the elastic supporting block 17, and in actual use, a container can be placed outside the machine body 1 to catch the slipped waste for collection.

When the total weight of the residual waste materials in the receiving groove 12 is smaller than the bearing of the elastic supporting block 17, the elastic supporting block 17 resets and covers the discharge hole 15 again to block the discharge hole 15, and meanwhile, the partition plate 16 is pushed to fold upwards, so that the waste materials are piled on the material bearing plate 18 and the partition plate 16, and automatic discharging after the waste materials are piled up and automatic blocking of the discharge hole 15 after discharging can be realized.

It should be noted that the thickness of the material bearing plate 18 is greater than that of the partition plate 16, and when the partition plate 16 is folded, the folded areas of the partition plate 16 are all within the thickness range of the material bearing plate 18, so as to reduce the leakage of waste materials from the gap formed between the partition plate 16 and the material bearing plate 18 after the partition plate 16 is folded.

Referring to fig. 6, a plurality of vibration plates 19 are fixed below the material bearing plate 18, the vibration plates 19 are arranged at intervals, and the vibration plates 19 are all arranged vertically. The vibrating pieces 19 are suspended in the receiving trough 12 except for the part connected with the material bearing plate 18.

When the waste materials are collected, the vibration generated by the second punch 32 impacting the second die 31 is transmitted to the vibration piece 19, the vibration piece 19 vibrates and drives the material bearing plate 18 to vibrate, so that the waste materials are easier to spread on the material bearing plate 18, and when the waste materials slide out from the discharge hole 15, the second punch 32 impacting the second die 31 drives the vibration piece 19 to vibrate and further drives the material bearing plate 18 to vibrate, so that the waste materials are easier to fall off and slide out from the discharge hole 15.

The implementation principle of the production process of the motor iron core in the embodiment of the application is as follows:

when the iron core is produced, a steel belt is placed on the die one 21 at the first through hole stamping station 2, the driving piece one 4 is controlled to drive the punch one 22 to slide to be close to the die one 21, the steel belt on the die one 21 is stamped, so that a through hole on a punching sheet is formed on the steel belt, the steel belt is moved forward, the next part to be stamped on the steel belt is located on the die one 21 at the second through hole stamping station 2, meanwhile, the driving piece three 72 on the punch one 22 of the other through hole stamping stations 2 is controlled to drive the penetrating rod 71 to slide to be separated from the stamping part 222, the punch one 22 at the other through hole stamping stations 2 is blocked to stamp the steel belt, the influence of the other through hole stamping stations 2 on the steel belt is reduced, and then the punch one 22 corresponding to the part to be stamped on the steel belt is controlled to stamp the steel belt.

Repeating the operation of moving the steel belt forwards to control the first punch 22 to punch the steel belt until the through holes on the steel belt are machined, penetrating the steel belt with the machined through holes through the penetrating area 11 and placing the steel belt on the second die 31, controlling the second driving part 33 to drive the second punch 32 to punch the steel belt on the second die 31 to form a punching sheet, and controlling the second driving part 33 to drive the second punch 32 to move away from the steel belt.

And then moving the steel belt to enable the next position to be punched on the steel belt to be located under the second punch 32, simultaneously controlling the fourth driving part 8 to drive the second die 31 to rotate, enabling the second die 31 to correspond to the position of the next position to be punched on the steel belt, controlling the second driving part 33 to drive the second punch 32 to punch the steel belt on the second die 31 to obtain the next punching sheet, laminating the next punching sheet on the last punching sheet, and repeating the operation to obtain the iron core.

The mode that through holes under different angles of rotation of the punching sheets are manufactured in advance and then the punching appearance is adopted, so that the lugs on each punching sheet are mutually aligned when the thickness uniformity of the iron core is improved, the precision and the quality of the iron core are improved, and the iron core is produced more conveniently.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The production process of the motor iron core is characterized by comprising the following steps of:

a. the steel strip is arranged on a through hole stamping station (2) of a stamping device to be stamped into through holes on a plurality of stamping sheets with different rotation angles, the rotation angles of the stamping sheets are multiples of 360 degrees divided by the angle degrees of the number of lugs on the stamping sheets, and the rotation angles among the stamping sheets are inconsistent;

b. placing the steel strip with the punched through holes on a profile punching station (3) of a punching device to punch to form a punching sheet profile, and obtaining a punching sheet;

c. then, rotating a second die (31) on a profile stamping station (3) of the stamping device, so that the second die (31) corresponds to the position of the next stamping to be processed on the steel belt, stamping again to form the profile of the next stamping, and laminating the profile on the last stamping;

d. and c, repeating the step c to obtain the iron core.

2. The process for producing a motor core according to claim 1, wherein: the stamping device comprises a machine body (1), a plurality of through hole stamping stations (2) and an appearance stamping station (3) are arranged on the machine body (1), the number of the through hole stamping stations (2) is corresponding to that of lugs on a stamping sheet, the through hole stamping stations (2) comprise a first female die (21) arranged on the machine body (1) and a first male die (22) connected to the machine body (1) in a sliding manner, a first driving piece (4) is further arranged on the machine body (1), the first driving piece (4) drives a plurality of the first male dies (22) to move, a limiting assembly (7) is arranged on the first male dies (22), and the limiting assembly (7) is used for blocking the first male dies (22) from impacting the first female dies (21);

the profile stamping station (3) comprises a female die II (31) arranged on the machine body (1), a driving piece II (33) and a male die II (32) connected to the machine body (1) in a sliding manner, wherein the driving piece II (33) drives the male die II (32) to move, a driving piece IV (8) is further arranged on the machine body (1), and the driving piece IV (8) drives the female die II (31) to rotate.

3. The process for producing a motor core according to claim 2, wherein: the first male die (22) comprises a mounting part (221) arranged on the first driving piece (4) and a punching part (222) connected to the mounting part (221) in a sliding manner, the limiting component (7) comprises a penetrating rod (71) penetrating through the mounting part (221) and the punching part (222) and a driving piece III (72) arranged on the mounting part (221), and the driving piece III (72) drives the penetrating rod (71) to slide through or slide away from the punching part (222).

4. The process for producing a motor core according to claim 2, wherein: the machine body (1) is provided with a receiving groove (12), the inner wall of the receiving groove (12) is provided with a first guide plate (13) and a second guide plate (14), the first guide plate (13) and the second guide plate (14) are oppositely arranged, and one end, far away from the junction of the second guide plate (14) and the inner wall of the receiving groove (12), of the second guide plate is located under the first guide plate (13).

5. The process for producing a motor core according to claim 4, wherein: the automatic feeding machine is characterized in that a discharge hole (15) communicated with the receiving groove (12) is formed in the outer side wall of the machine body (1), a partition plate (16) is hinged to the inner wall of the receiving groove (12), the partition plate (16) is located on one side, opposite to the discharge hole (15), of the receiving groove (12), an elastic supporting block (17) covering the discharge hole (15) is further arranged on the inner wall of the receiving groove (12), the lower end of the elastic supporting block (17) is connected with the inner wall of the receiving groove (12), and the upper end of the elastic supporting block (17) is connected with one end, close to the discharge hole (15), of the partition plate (16).

6. The process for producing a motor core according to claim 5, wherein: the material receiving groove (12) is arranged around the female die II (31), a material bearing plate (18) is further arranged on the inner wall of the material receiving groove (12), the material bearing plate (18) is located on one side, away from the discharge hole (15), of the partition plate (16), and a vibrating piece (19) is arranged below the material bearing plate (18).

7. The process for producing a motor core according to claim 6, wherein: still be equipped with spacing (9) on organism (1), spacing (9) are located the opposite both sides of die two (31), spacing (9) with die two (31) splice and are formed with wears to establish regional (11), wear to establish regional (11) and be located the top of die two (31), wear to establish regional (11) and be used for the steel band to wear to establish.

8. The process for producing a motor core according to claim 7, wherein: the limiting frame (9) comprises two vertical rods (91) and a connecting portion (92), the connecting portion (92) is located between the two vertical rods (91) and connected with the two vertical rods (91), the connecting portion (92) is located above the second female die (31), and an elastic layer (10) is coated on the outer side wall of the connecting portion (92).