Combined progressive die for punching automobile motor core

Abstract

This invention relates to a combined progressive die for automotive motor core laminations, comprising a forming assembly including a moving die and a fixed die respectively arranged vertically and cooperating with each other; a coating assembly located below the forming assembly, comprising a feed plate and a discharge plate arranged horizontally and concentrically distributed vertically and fixed to each other, two suction rings respectively concentrically embedded at the bottom of the feed plate and the top of the discharge plate, and a rotatable transposition plate concentrically connected between the feed plate and the discharge plate; and a discharge assembly located below the coating assembly, comprising a base block, two sprockets arranged horizontally above the base block and respectively distributed horizontally, a chain sleeved on the two sprockets, and a geared motor fixed at the bottom of the base block; this invention integrates the coating assembly and the discharge assembly, which improves work efficiency and reduces labor costs; it also effectively reduces the defect rate and is suitable for large-scale promotion.

Description

Technical Field

[0001] This application relates to the field of motor core processing technology, specifically to a combined progressive die for automotive motor core laminations. Background Technology

[0002] Automotive motors are one of the core components of the three-electric system (battery / motor / electronic control) of new energy vehicles. Automotive motors can be divided into two categories according to their technical routes: permanent magnet synchronous motors and AC asynchronous motors. Among them, permanent magnet synchronous motors dominate the domestic new energy vehicle market. Like other motors, the core lamination is the core component that makes up the core of the permanent magnet synchronous motor. The core lamination is made of silicon steel sheets with good conductivity. In order to ensure production volume and guarantee precision, the current production of core laminations is completed using progressive die stamping technology.

[0003] Because the iron core laminations need to be stored for a certain period of time after forming, rust inhibitors must be sprayed or applied to the surface to prevent oxidation. Simultaneously, their appearance must be inspected to prevent defective products from entering the next process. Existing progressive dies only have stamping functions. After the iron core laminations are stamped in the progressive die, they must first be placed in temporary storage baskets. Then, personnel must immerse the baskets containing the iron core laminations into containers filled with rust inhibitors to transfer the rust inhibitor to the iron core laminations in large quantities. However, this process is cumbersome. Because the number of iron core laminations in the turnover basket is large and they are stacked haphazardly, the rust inhibitor cannot fully penetrate both sides of each lamination, resulting in poor rust prevention. Some laminations are already rusty and unusable when packaged. However, manually spraying rust inhibitor on each lamination individually would be time-consuming and labor-intensive, leading to low work efficiency and high labor costs. In addition, the appearance inspection of the laminations can only be done by sampling, which is time-consuming and labor-intensive due to the large number of laminations. This results in a high defect rate of shipped laminations, which urgently needs to be addressed. Summary of the Invention

[0004] In view of the current state of the prior art, the technical problem to be solved by the present invention is to provide a combined progressive die for automotive motor core laminations that simplifies the operation steps, effectively improves the rust prevention effect, increases work efficiency, reduces labor costs, saves time and effort, and effectively reduces the defect rate.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: a combined progressive die for automotive motor core laminations, comprising a forming component, the forming component comprising a moving die and a fixed die respectively arranged vertically and cooperating with each other, the fixed die comprising a carrier plate, a pad plate and a bottom plate fixed from top to bottom and arranged horizontally, and a concentrically distributed blanking hole is provided in the carrier plate, the pad plate and the bottom plate. It also includes a coating component located below the molding component. The coating component includes a feed plate and a discharge plate arranged horizontally and concentrically distributed and fixed to each other, two suction rings concentrically embedded at the bottom of the feed plate and the top of the discharge plate, and a rotatable transfer plate concentrically connected between the feed plate and the discharge plate. The feed tray and the discharge tray are respectively provided with eccentrically distributed and staggered feed holes and discharge holes, and the feed holes are concentrically located below the discharge holes. Each of the two suction rings has a cavity. The cavity in the upper suction ring is concentrically located below the feed hole, and the cavity in the lower suction ring is concentrically located above the discharge hole. The transposition plate has multiple traction holes evenly spaced at equal angles along the circumference, and each traction hole cooperates with the feed hole and the discharge hole.

[0006] Preferably, it further includes a discharge assembly located below the coating component. The discharge assembly includes a base block, two sprockets horizontally positioned above the base block and distributed to the left and right respectively, a chain sleeved on the two sprockets, and a reduction motor fixed to the bottom of the base block. One of the sprockets on the right side is rotatably connected to the top of the base block and concentrically positioned below the discharge plate. The rotation shaft of the reduction motor passes vertically upward through the base block and is concentrically fixed on one of the sprockets on the left side.

[0007] Preferably, the discharge assembly further includes a material support plate concentrically fixed to the top of a sprocket on the right side, and a material guide plate is fixed on each link of the chain. The bottom of each material guide plate is slightly higher than the top of the material support plate, and a horizontally arranged material guide tooth is formed on the inner center of each material guide plate facing the inside of the chain.

[0008] Preferably, each of the feeding teeth has a symmetrically arranged positioning arc surface on both outer walls, and a clamping groove with an opening and variable internal width is formed between any two adjacent feeding teeth and one of the positioning arc surfaces.

[0009] Preferably, the discharge assembly further includes a drive shaft that is vertically and concentrically fixed on the material support plate, the end of the drive shaft being upward and concentrically passing through the feed plate and the discharge plate, and the shifting plate being concentrically sleeved and fixed outside the drive shaft.

[0010] Preferably, the discharge assembly further includes a sorting mechanism, which includes a U-shaped bracket horizontally fixed to the top of the seat block, a partition horizontally fixed inside the U-shaped bracket, and two vision cameras fixed inside the U-shaped bracket and symmetrically distributed on the upper and lower sides of the partition. The opening of the U-shaped bracket faces forward or backward. The front or rear part of the chain moves through the interior of the U-shaped bracket and is located above the partition. The top of the partition is flush with the top of the material tray. A window is provided in the partition. The cameras of the upper and lower vision cameras are vertically downward and upward, respectively, and are positioned towards the window.

[0011] Preferably, the sorting mechanism further includes two guiding units, both located inside the chain and downstream of the U-shaped support. Each guiding unit includes an L-shaped support fixed to the top of the seat block and a guiding plate rotatably connected to the upper end of the L-shaped support. The top of the guiding plate is flush with the top of the tray when it is in a horizontal position.

[0012] Preferably, the material guiding unit further includes an inclined material guiding cylinder, the fixed end of which is rotatably connected to an L-shaped bracket, and the telescopic end of which is inclined upward and rotatably connected to the bottom of the material guiding plate.

[0013] Preferably, a first infusion hole is provided on one side of the top of the feed tray, and a second infusion hole is provided on one side of the bottom of the discharge tray.

[0014] Compared with the prior art, the advantages of the present invention are as follows: The progressive die of this invention integrates a coating component and a discharge component, thereby enabling the progressive die to simultaneously perform automatic application of rust inhibitor and automatic inspection of shape defects. The coating component can automatically apply rust inhibitor to the surface of each stamped iron core lamination, thus eliminating the step of temporarily storing them in a turnover basket and then uniformly immersing them in rust inhibitor, simplifying the operation steps. Moreover, it can ensure that the rust inhibitor fully covers both sides of each iron core lamination, effectively improving the rust prevention effect, while improving work efficiency and reducing labor costs. The discharge component can automatically inspect the shape of each iron core lamination and automatically classify and output them according to the inspection results, achieving time and labor saving and effectively reducing the defect rate, making it suitable for large-scale promotion. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent when taken in conjunction with the accompanying drawings and the following detailed description; throughout the drawings, the same or similar reference numerals denote the same or similar elements; it should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale; in the drawings: Figure 1 This is an exploded top view of the left front side of the present invention; Figure 2This is an exploded top view of the left rear side of the molding component of the present invention; Figure 3 This is an exploded top view of the coating component of the present invention; Figure 4 This is an exploded top view of the left front side of the discharge assembly of the present invention; Figure 5 This is a top-side structural diagram of the core lamination of the present invention. Detailed Implementation

[0016] The embodiments of this application will now be described in more detail with reference to the accompanying drawings. Although some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the accompanying drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0017] It should be understood that the various steps described in the method embodiments of this application may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown, and the scope of this application is not limited in this respect.

[0018] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; the relevant definitions of other terms will be given in the description below.

[0019] It should be noted that the concepts of "first" and "second" mentioned in this application are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0020] It should be noted that the terms "a" and "a plurality of" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0021] like Figures 1 to 5As shown, a combined progressive die for automotive motor core laminations includes a forming component 1. The forming component 1 includes a moving die 11 and a fixed die 12 that are respectively arranged vertically and cooperate with each other. The fixed die 12 includes a carrier plate 121, a pad plate 122 and a bottom plate 123 that are fixed from top to bottom and arranged horizontally. Each of the carrier plate 121, the pad plate 122 and the bottom plate 123 has a concentrically distributed blanking hole 124. It also includes a coating component 2 located below the molding component 1. The coating component 2 includes a feed plate 21 and a discharge plate 22 arranged horizontally and concentrically distributed and fixed to each other, two liquid suction rings 24 respectively concentrically embedded at the bottom of the feed plate 21 and the top of the discharge plate 22, and a rotatable transfer plate 23 concentrically connected between the feed plate 21 and the discharge plate 22. The feed plate 21 and the discharge plate 22 are respectively provided with eccentrically distributed and staggered feed holes 211 and discharge holes 221, with the feed holes 211 being concentrically located below the discharge holes 124. Each of the two suction rings 24 has a cavity 241. The cavity 241 of the upper suction ring 24 is concentrically located below the feed hole 211, and the cavity 241 of the lower suction ring 24 is concentrically located above the discharge hole 221. The transposition plate 23 has multiple traction holes 231 evenly spaced at equal angles along the circumference, and each traction hole 231 cooperates with the feed hole 211 and the discharge hole 221.

[0022] A combined progressive die for automotive motor core laminations further includes a discharge assembly 3 located below the coating assembly 2. The discharge assembly 3 includes a seat block 31, two sprockets 32 horizontally positioned above the seat block 31 and distributed to the left and right respectively, a chain 34 sleeved on the two sprockets 32, and a reduction motor 33 fixed to the bottom of the seat block 31. One of the sprockets 32 on the right side is rotatably connected to the top of the seat block 31 and concentrically positioned below the discharge plate 22. The rotation shaft of the reduction motor 33 passes vertically upward through the seat block 31 and is concentrically fixed on one of the sprockets 32 on the left side.

[0023] The discharge assembly 3 also includes a material support plate 36 concentrically fixed on the top of a sprocket 32 ​​on the right side. Each link 341 of the chain 34 is also fixed with a material guide plate 35. The bottom of each material guide plate 35 is slightly higher than the top of the material support plate 36. The inner center of each material guide plate 35 forms a horizontally arranged material guide tooth 351 facing the inside of the chain 34.

[0024] Each of the two outer walls of the feeding tooth 351 has a symmetrically arranged positioning arc surface 352. Between any two adjacent positioning arc surfaces 352 on any two adjacent feeding teeth 351, there is an opening and a clamping groove 353 with variable internal width.

[0025] The discharge assembly 3 also includes a drive shaft 312 that is vertically and concentrically fixed on the material support plate 36. The end of the drive shaft 312 is concentrically upward and moves through the feed plate 21 and the discharge plate 22. The shift plate 23 is concentrically sleeved and fixed outside the drive shaft 312.

[0026] The discharge assembly 3 also includes a sorting mechanism, which includes a U-shaped bracket 37 horizontally fixed to the top of the seat block 31, a partition 313 horizontally fixed inside the U-shaped bracket 37, and two vision cameras 38 fixed inside the U-shaped bracket 37 and symmetrically distributed on the upper and lower sides of the partition 313. The opening of the U-shaped bracket 37 is arranged facing forward or backward. The front or rear part of the chain 34 moves through the interior of the U-shaped bracket 37 and is located above the partition 313. The top of the partition 313 is flush with the top of the tray 36. A window 3131 is opened in the partition 313. The cameras of the upper and lower vision cameras 38 are respectively vertically downward and upward and are arranged in the direction of the window 3131.

[0027] The sorting mechanism also includes two material guiding units, both located inside the chain 34 and downstream of the U-shaped bracket 37. The material guiding unit includes an L-shaped bracket 39 fixed to the top of the seat block 31 and a material guiding plate 310 rotatably connected to the upper end of the L-shaped bracket 39. The top of the material guiding plate 310 is flush with the top of the material tray 36 when it is in a horizontal position.

[0028] The material guiding unit also includes an inclined material guiding cylinder 311. The fixed end of the material guiding cylinder 311 is rotatably connected to the L-shaped bracket 39, and the telescopic end of the material guiding cylinder 311 is inclined upward and rotatably connected to the bottom of the material guiding plate 310.

[0029] A first infusion hole 212 is provided on one side of the top of the feed plate 21, and a second infusion hole 222 is provided on one side of the bottom of the discharge plate 22.

[0030] The moving mold 11 includes a top plate 111 and a pressure plate 112 that are horizontally arranged and fixed to each other and distributed vertically, a separation column 115 and a positioning column 113 that are vertically fixed to the bottom of the pressure plate 112 and arranged to the left and right respectively, and two punching tooth assemblies that are located at the bottom of the pressure plate 112 and between the separation column 115 and the positioning column 113 and are distributed to the left and right respectively. The separation column 115 and each blanking hole 124 are concentrically arranged.

[0031] The punching module includes multiple punching rods 114 that are vertically fixed on the pressure plate 112 and are evenly arranged at equal angles along the circumference. The indexing positions of each punching rod 114 in one punching module and each punching rod 114 in another punching module do not coincide in the circumferential direction.

[0032] Each of the carrier plate 121, pad plate 122 and base plate 123 has a positioning hole 126 that is concentrically distributed with the positioning post 113.

[0033] The carrier plate 121, pad plate 122 and base plate 123 each have two punch hole combinations located between the material discharge hole 124 and the positioning hole 126 and distributed to the left and right respectively. The punch hole combination includes multiple punch holes 125 evenly arranged at equal angles along the circumferential direction. Each punch hole 125 is located directly below a corresponding punch rod 114.

[0034] Working principle: One end of the steel strip is pulled outward from the unwinding mechanism and extended laterally to the left to the top of the fixed mold 12 in the forming assembly 1, with the lower outer wall of the steel strip adhering to the top outer wall of the carrier plate 121 in the fixed mold 12. Then, one end of the steel strip continues to move to the left intermittently at a fixed frequency, while the top plate 111 and pressure plate 112 in the moving mold 11 are driven to move downward, thereby driving the separating column 115, the positioning column 113 and the two punching gear assemblies to move synchronously. When one end of the steel strip passes the positioning column... When the positioning post 113 passes below the steel strip, it will pass through the steel strip and form a shaft hole 41 in the steel strip. When the punch rod 114 in each punch module passes through the steel strip, it will form a tooth groove 42. Similarly, when the steel strip passes below the separating post 115, the separating post 115 will separate an iron core punch 4 from the steel strip. The iron core punch 4 will pass through the blanking hole 124 located on the bottom plate 123 and fall below the bottom plate 123. The above structure and principle are existing technologies.

[0035] Next, the falling iron core lamination 4 enters the feed hole 211 on the feed tray 21 in the coating component 2. Since neither of the traction holes 231 on the shifting plate 23 is aligned with the feed hole 211 at this time, the iron core lamination 4 will not continue to fall. Then, the reduction motor 33 in the discharge component 3 is started to rotate its rotating shaft, which in turn drives the chain 34 to run through the two sprockets 32. Since the material support plate 36 is connected to the shifting plate 23 through the transmission shaft 312, the shifting plate 23 will rotate synchronously when one of the sprockets 32 on the material support plate 36 rotates. When one of the traction holes 231 on the shifting plate 23 rotates to be directly below the feed hole 211, the reduction motor 33 is temporarily stopped, and the iron core lamination 4 will fall into one of the traction holes 231 through the upper cavity hole 241. Then, the reduction motor 33 is restarted to drive the iron core lamination 4 to rotate toward the discharge hole 221 on the discharge plate 22 with the help of the shifting plate 23.

[0036] Rust-preventive liquid for coating is introduced into the first inlet hole 212 and the second inlet hole 222 through the pipe so that the rust-preventive liquid penetrates into the interior of the two suction rings 24. Since the top and bottom outer walls of the iron core punch 4 are respectively attached to the bottom and top outer walls of the upper and lower suction rings 24, the two suction rings 24 will automatically apply the rust-preventive liquid to the top and bottom outer walls of the iron core punch 4 when the iron core punch 4 rotates. When the iron core punch 4 rotates to the top of the discharge hole 221, the iron core punch 4 will fall through the discharge hole 221 to the bottom of the discharge plate 22.

[0037] At this time, one of the clamping slots 353 is positioned directly below the discharge hole 221. Since the internal width of the clamping slot 353 is slightly larger than the outer diameter of the core lamination 4, the falling core lamination 4 will fall into the clamping slot 353, and the bottom outer wall of the core lamination 4 will adhere to the top outer wall of the support plate 36. As the chain 34 continues to rotate, the clamping slot 353 will drive the core lamination 4 to move circumferentially. Since the opening width of the clamping slot 353 is smaller than the outer diameter of the core lamination 4 at this time, the core lamination 4 will not detach from the clamping slot 353 during movement. Each subsequent core lamination 4 will fall into each of the remaining clamping slots 353 in the same way.

[0038] When the iron core lamination 4 is brought into the U-shaped bracket 37 and the top of the partition 313 in the sorting mechanism, the camera of the upper vision camera 38 will automatically take a picture of the top of the iron core lamination 4 from below, while the camera of the lower vision camera 38 will automatically take a picture of the bottom of the iron core lamination 4 from above through the window 3131 on the partition 313. Since both vision cameras 38 are connected to the external diagnostic equipment in advance through signal lines and power lines, the pictures will be automatically sent to the external diagnostic equipment. After receiving the pictures, the external diagnostic equipment will automatically and quickly determine whether there are any defects in the shape of the iron core lamination 4. The above structure and principle are all existing technologies. The front and back width of the window 3131 is smaller than the outer diameter of the iron core lamination 4, so the iron core lamination 4 will not fall.

[0039] After being photographed, the iron core lamination 4 will continue to move with the chain 34 to the top of the guide plate 310 in a nearby guide unit. Initially, the guide plates 310 in both guide units are in a horizontal position. However, since the clamping groove 353 has left the area of ​​the sprocket 32 ​​and is in the straight section of the sprocket 32, the two chain links 341 where the clamping groove 353 is located change from an angled state to a parallel state. This increases the included angle between the push teeth 351 on the two push plates 35. As a result, the width of the opening and the inside of the clamping groove 353 increases, and the width of the opening of the clamping groove 353 is greater than the outer diameter of the iron core lamination 4.

[0040] If the shape of the core lamination 4 is defective, the external diagnostic equipment will drive the telescopic end of the guide cylinder 311 in a nearby guide unit to retract inward, thereby causing the end of the guide plate 310 to swing downward, thus placing the guide plate 310 in an inclined position. This causes the core lamination 4 located in the clamping groove 353 to slide outward along the inclination of the guide plate 310, thereby automatically removing the core lamination 4 with unqualified shape.

[0041] If the shape of the core lamination 4 is free from defects, the guide plate 310 in one of the nearby guide units is kept in a horizontal position, thereby allowing the core lamination 4 to be moved to the top of the guide plate 310 in another guide unit. Then, the telescopic end of the guide cylinder 311 in that guide unit is driven to retract inward so that the guide plate 310 is tilted, thereby automatically outputting the core lamination 4 with the correct shape.

[0042] It is worth mentioning that when the clamping groove 353 moves to any one of the sprocket 32 ​​areas again, the two chain links 341 where the clamping groove 353 is located begin to change from a parallel state to an angled state, which reduces the included angle between the pushing teeth 351 on the two pushing plates 35. This reduces the width of both the opening and the interior of the clamping groove 353, making the opening width of the clamping groove 353 smaller than the outer diameter of the iron core lamination 4, but the interior width of the clamping groove 353 slightly larger than the outer diameter of the iron core lamination 4.

[0043] The progressive die of this invention integrates a coating component 2 and a discharge component 3, thereby enabling the progressive die to simultaneously perform automatic application of rust inhibitor and automatic inspection of shape defects. The coating component 2 can automatically apply rust inhibitor to the surface of each stamped iron core lamination 4, thus eliminating the step of temporarily storing it in a turnover basket and then uniformly immersing it in rust inhibitor, simplifying the operation steps. Moreover, it can ensure that the rust inhibitor fully covers both sides of each iron core lamination 4, effectively improving the rust prevention effect, while improving work efficiency and reducing labor costs. The discharge component 3 can automatically inspect the shape of each iron core lamination 4 and automatically classify and output it according to the inspection results, achieving the effect of saving time and labor and effectively reducing the defect rate, making it suitable for large-scale promotion.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A combined progressive die for automotive motor core laminations, comprising a forming assembly, the forming assembly including a moving die and a fixed die respectively arranged vertically and cooperating with each other, the fixed die including a carrier plate, a pad plate and a bottom plate fixed sequentially from top to bottom and arranged horizontally, each of the carrier plate, pad plate and bottom plate having a concentrically distributed blanking hole, characterized in that: It also includes a coating component located below the molding component. The coating component includes a feed plate and a discharge plate arranged horizontally and concentrically distributed and fixed to each other, two suction rings concentrically embedded at the bottom of the feed plate and the top of the discharge plate, and a rotatable transfer plate concentrically connected between the feed plate and the discharge plate. The feed tray and the discharge tray are respectively provided with eccentrically distributed and staggered feed holes and discharge holes, and the feed holes are concentrically located below the discharge holes; Each of the two suction rings has a cavity. The cavity in the upper suction ring is concentrically located below the feed hole, and the cavity in the lower suction ring is concentrically located above the discharge hole. The transposition plate has multiple traction holes evenly spaced at equal angles along the circumference, and each traction hole cooperates with the feed hole and the discharge hole.

2. The combined progressive die for automotive motor core laminations according to claim 1, characterized in that, It also includes a discharge assembly located below the coating component. The discharge assembly includes a seat block, two sprockets horizontally positioned above the seat block and distributed to the left and right respectively, a chain sleeved on the two sprockets, and a geared motor fixed to the bottom of the seat block. One of the sprockets on the right side is rotatably connected to the top of the seat block and concentrically positioned below the discharge plate. The rotating shaft of the geared motor passes vertically upward through the seat block and is concentrically fixed on one of the sprockets on the left side.

3. The combined progressive die for automotive motor core laminations according to claim 2, characterized in that, The discharge assembly also includes a material tray concentrically fixed to the top of a sprocket on the right side. Each link of the chain is also fixed with a material guide plate. The bottom of each material guide plate is slightly higher than the top of the material tray. The inner center of each material guide plate has a horizontally arranged material guide tooth facing the inside of the chain.

4. The combined progressive die for automotive motor core laminations according to claim 3, characterized in that, Each of the feeding teeth has a symmetrically arranged positioning arc surface on both outer walls. Between any two adjacent feeding teeth, a clamping groove with an opening and variable internal width is formed between the two adjacent positioning arc surfaces.

5. A combined progressive die for automotive motor core laminations according to claim 3, characterized in that, The discharge assembly also includes a drive shaft that is vertically and concentrically fixed on the material support plate. The end of the drive shaft is concentrically upward and moves through the feed plate and the discharge plate. The shifting plate is concentrically sleeved and fixed outside the drive shaft.

6. A combined progressive die for automotive motor core laminations according to claim 3, characterized in that, The discharge assembly also includes a sorting mechanism, which includes a U-shaped bracket horizontally fixed to the top of the base block, a partition horizontally fixed inside the U-shaped bracket, and two vision cameras fixed inside the U-shaped bracket and symmetrically distributed on the upper and lower sides of the partition. The opening of the U-shaped bracket is arranged facing forward or backward. The front or rear part of the chain moves through the interior of the U-shaped bracket and is located above the partition. The top of the partition is flush with the top of the material tray. A window is opened in the partition. The cameras of the upper and lower vision cameras are respectively vertically downward and upward and are arranged in the direction of the window.

7. A combined progressive die for automotive motor core laminations according to claim 6, characterized in that, The sorting mechanism also includes two material guiding units, both located inside the chain and downstream of the U-shaped support. Each material guiding unit includes an L-shaped support fixed to the top of the seat block and a material guiding plate rotatably connected to the upper end of the L-shaped support. When the material guiding plate is in a horizontal position, the top of the material guiding plate is flush with the top of the material tray.

8. A combined progressive die for automotive motor core laminations according to claim 7, characterized in that, The material guiding unit also includes an inclined material guiding cylinder. The fixed end of the material guiding cylinder is rotatably connected to an L-shaped bracket, and the telescopic end of the material guiding cylinder is inclined upward and rotatably connected to the bottom of the material guiding plate.

9. A combined progressive die for automotive motor core laminations according to claim 1, characterized in that, The feed tray has a first infusion hole on one side of the top and a second infusion hole on one side of the bottom.

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