Shearing equipment for center pillar sheet type silicon steel sheet

Abstract

The invention relates to shearing equipment for a center pillar sheet type silicon steel sheet, and relates to the technical field of silicon steel sheet machining. The device comprises a workbench, and a moving frame and a moving assembly used for driving the moving frame to move back and forth in the length direction of the workbench are arranged above the workbench; a lifting part is arranged on the movable frame, a plurality of blanking tools are further detachably connected to the movable frame, the lifting part is used for driving the blanking tools to move in a reciprocating mode in the direction close to or away from the workbench, and an adjusting assembly is further arranged on the movable frame and used for adjusting the relative positions of the blanking tools; the punching and cutting device has the effect of improving punching and cutting of the middle column sheet shape of the silicon steel sheet.

Description

Technical Field

[0001] The present application relates to the technical field of silicon steel sheet processing, and in particular to a shearing device for a center column type silicon steel sheet. Background Art

[0002] Silicon steel sheets are essential components for transformers, motors and generators, and are mainly used to make iron cores. Silicon steel sheets are a soft magnetic alloy of ferrosilicon with extremely low carbon content. In order to be able to piece together silicon steel sheets to form the shape of the iron core, and to facilitate the bundling and fixing of the assembled silicon steel sheets by wire harnesses, the silicon steel sheets need to be sliced ​​during the processing, such as punching the silicon steel sheets into different sheet shapes (such as center column sheet shapes), and punching holes in silicon steel sheets of different sheet shapes (such as punching round holes or punching strip holes). Existing punching equipment for punching center column-shaped silicon steel sheets generally includes a blade and a lifting member (such as a cylinder) for driving the blade to move up and down; the blade is driven to press against and penetrate the silicon steel sheet by driving the cylinder to move up and down, thereby achieving punching of the silicon steel sheet; if the hole type to be punched is a strip hole opened along the length direction of the silicon steel sheet, and the blade length is smaller than the length of the strip hole to be punched, then it is generally necessary to add a moving component to drive the blade and the lifting member to move along the length direction of the silicon steel sheet, and the strip hole is punched by punching while moving.

[0003] Regarding the above-mentioned related technologies, when it is necessary to punch a number of strip holes on a single-piece column-shaped silicon steel sheet, it is necessary to repeatedly perform the above operations with the aid of the above-mentioned punching equipment to finally complete the punching of all the strip holes. This punching method is likely to lead to low punching processing efficiency of the silicon steel sheet, so it needs to be improved. Summary of the invention

[0004] In order to improve the efficiency of punching and shearing of center-column-shaped silicon steel sheets, the present application provides a shearing device for center-column-shaped silicon steel sheets.

[0005] The present application provides a shearing device for a central column type silicon steel sheet, which adopts the following technical solution: A shearing device for a center column sheet type silicon steel sheet comprises a workbench, a movable frame is provided above the workbench, and a movable assembly used to drive the movable frame to reciprocate along the length direction of the workbench; a lifting member is provided on the movable frame, and a plurality of punching tools are detachably connected to the movable frame, the lifting member is used to drive the punching tools to reciprocate in a direction close to or away from the workbench, and an adjusting assembly is also provided on the movable frame, and the adjusting assembly is used to adjust the relative positions between the punching tools.

[0006] By adopting the above technical scheme, the specific method of punching the silicon steel sheet of the middle column type using the shearing equipment disclosed in the present application is: placing the silicon steel sheet of the middle column type on the workbench so that the length direction of the silicon steel sheet is parallel to the length direction of the workbench; selecting a corresponding number of punching tools according to the number of strip holes to be punched, and installing them on the movable frame, and using the adjustment component to adjust the relative position between the punching tools so that the punching tools are located directly above the punching position where the strip holes need to be punched, and finally using the lifting member to drive all the punching tools to move down and penetrate the silicon steel sheet to achieve the punching of all the strip holes on the silicon steel sheet of the middle column type.

[0007] Preferably, the end of the strip hole is arc-shaped, and the end of the punching tool is provided with an arc-shaped portion adapted to the arc of the end of the strip hole; a controller is also included, and the moving assembly and the lifting member are controlled by the controller; the controller is used to control the moving assembly to drive the moving frame to move in a direction parallel to the length direction of the workbench, and pause for a specified time after each movement of a specified distance, and control the moving assembly to move a specified distance again and pause after reaching the specified time, until the punching of the strip hole is completed; The controller is also used to control the lifting member to drive the punching tool to move up and down within a specified time period when the moving assembly drives the moving frame to pause, so that the punching tool penetrates the silicon steel sheet on the workbench during the lifting process.

[0008] By adopting the above technical solution, the controller is used to realize automatic control of the moving assembly and the lifting member, so as to realize efficient punching operation in which the punching tool punches holes while moving.

[0009] Preferably, when the punching tool punches the center column type silicon steel sheet twice adjacently, there is an overlapping area in the punching positions of the center column type silicon steel sheet, and the arc portion is located in the overlapping area.

[0010] By adopting the above technical scheme, the present scheme further defines the positional relationship between two adjacent punching positions of the punching tool when the strip hole to be punched is a strip hole with an arc-shaped end, that is: there is an overlapping area between the two adjacent punching positions, and the arc-shaped portion of the punching tool is located in the overlapping area, so as to ensure that the middle position of the strip hole is long strip-shaped, thereby improving the punching quality.

[0011] Preferably, a stripping component is further included, which is used to drive the waste sheets punched out by the punching tool to move in a direction away from the moving direction of the moving frame after the punching tool penetrates the center column sheet-type silicon steel sheet, so that the waste sheets are separated from the overlapping area formed by the current punching position and the next punching position.

[0012] By adopting the above technical solution, waste sheets refer to sheets that are cut off from the column-shaped sheets of the main body by the punching tool. Since there is an overlapping area between the two adjacent punching positions of the punching tool, in order to avoid the appearance of smaller fragments due to the second punching of the previous waste sheet by the punching tool, which affects the difficulty of subsequent cleaning of the waste sheets, the waste sheets are moved after the punching tool completes punching each time, so that the waste sheets leave the current punching position and the next punching position.

[0013] Preferably, the driving end of the lifting member is connected to a connecting frame, and all the punching tools are located on the connecting frame; the stripping assembly includes a limit spring, a limit block, and a limit rod that are arranged one by one corresponding to the punching tools; a connecting rod is arranged on the top of the punching tool, the connecting rod is connected to the limit spring, and is slidably connected to the connecting frame through the corresponding limit spring, and the limit block is arranged on a side of the connecting frame close to the corresponding punching tool; the limit rod is located on the side of the punching tool away from the limit rod, and the limit rod is connected to the moving frame, and the limit rod and the limit block are arranged in sequence along the punching direction; A limiting protrusion is provided on one side of the connecting rod facing the limiting rod, and a first docking surface for contacting the limiting protrusion during the lifting and lowering process of the punching tool and a second docking surface for fitting with the limiting protrusion during the lifting and lowering process of the punching tool are provided on one side of the limiting rod; when the limiting protrusion contacts the first docking surface, the limiting spring is in a compressed state, and at this time, the limiting block fits with the side wall of the connecting rod; after the punching tool penetrates the silicon steel sheet, the punching tool continues to move downward so that the limiting protrusion moves to the side of the second docking surface, and at this time, the connecting rod drives the punching tool to move in a direction close to the connecting rod under the elastic force of the limiting spring, so that the limiting protrusion fits with the second docking surface; The stripping assembly further comprises a discharge member, which is used for discharging waste sheets taken away from the overlapping area by the punching tool from the workbench.

[0014] By adopting the above technical solution, after the punching tool completes the punching of the silicon steel sheet, the punching tool continues to move downward so that the punching tool moves downward under the action of the limiting protrusion and the second docking surface toward the connecting rod, so that the waste sheet obtained by the current punching is scraped away from the overlapping area by the punching tool during the movement, and then the waste sheet is discharged from the workbench through the discharge piece, thereby preventing the waste sheet from being scraped again to the overlapping area by the punching tool during the process of the limiting protrusion moving from contact with the second docking surface to contact with the first docking surface.

[0015] Preferably, a plurality of support seats are provided on the workbench, and the support seats are arranged one-to-one corresponding to the punching tools and are located directly below the corresponding punching tools. A yield spring is provided between the support seat and the workbench so that the support seat is slidably connected to the workbench through the yield spring, and the sliding direction of the support seat is parallel to the lifting direction of the punching tool.

[0016] By adopting the above technical solution, a support seat that can be reciprocated and lifted relative to the workbench is set to cooperate with the punching of the punching tool and the movement of the limiting protrusion on the punching tool, thereby achieving the giving way of the punching tool movement.

[0017] Preferably, a blanking port for waste sheets to pass through is provided on the surface of the support seat, and the blanking port passes through the workbench. The discharge piece is used for opening and closing the blanking port, and for opening the blanking port near the waste sheets so that the waste sheets taken away from the overlapping area by the punching tool can fall into the corresponding blanking port.

[0018] By adopting the above technical solution, when the punching tool takes the waste sheets away from the overlapping area, the blanking opening at the position where the waste sheets finally move will be opened, so that the waste sheets can fall into the blanking opening under the action of their own weight, thereby realizing convenient discharge.

[0019] Preferably, the discharge member comprises a baffle and a linkage frame, wherein the baffle is slidably connected to the inner wall of the discharge port, and one end of the linkage frame is connected to the baffle, and the other end is connected to the linkage frame.

[0020] By adopting the above technical solution, the baffle is driven to open and close by the movement of the movable frame, so that the blanking opening at the end away from the moving direction of the movable frame (ie away from the punching direction) is in an open state.

[0021] Preferably, conveyor belts are provided on the workbench and on both sides of the support seat, respectively. The conveyor belts are used to convey the conveyor belts on the workbench, and a gap is provided between the conveyor belt and the support seat. An adsorption part is connected to the gap, and the adsorption part is used to control the formation of negative pressure in the gap.

[0022] By adopting the above technical solution, the conveyor belt is used in conjunction with the support seat to support the center column type silicon steel sheet, and the center column type silicon steel sheet can also be conveyed to help achieve batch shearing of the center column type silicon steel sheet. In addition, the setting of the adsorption part can position the center column type silicon steel sheet on the workbench and during the shearing process, thereby improving the precise control of the punching position and optimizing the punching quality.

[0023] Preferably, the conveyor belt surface and the support seat surface are respectively provided with flexible pads.

[0024] By adopting the above technical solution, the setting of the flexible pad can, on the one hand, reduce the punching wear of the punching tool on the support seat, and on the other hand, increase the friction between the middle column sheet-type silicon steel sheet and the conveyor belt, and the middle column sheet-type silicon steel sheet and the support seat, thereby further reducing the displacement of the middle column sheet-type silicon steel sheet during the shearing process.

[0025] In summary, this application includes the following beneficial technical effects: The specific method of punching the center column type silicon steel sheet using the shearing equipment disclosed in the present application is as follows: placing the center column type silicon steel sheet on a workbench so that the length direction of the silicon steel sheet is parallel to the length direction of the workbench; selecting a corresponding number of punching tools according to the number of strip holes to be punched, and installing them on a movable frame, and using an adjustment component to adjust the relative positions of the punching tools so that the punching tools are located directly above the punching positions where the strip holes need to be punched, and finally using a lifting member to drive all the punching tools to move downward through the silicon steel sheet to achieve the punching of all the strip holes on the center column type silicon steel sheet, thereby improving the punching efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the shearing equipment for the center column sheet type silicon steel sheet disclosed in the embodiment of the present application.

[0027] Figure 2 yes Figure 1 Sectional view along AA direction.

[0028] Figure 3 It is a top view used to reflect the positional relationship between the moving frame and the workbench in other embodiments.

[0029] Figure 4 It is a schematic diagram of the structure of the central column type silicon steel sheet after the strip hole is finally formed in the embodiment of the present application, which is used to reflect the positional relationship between the punching position and the overlapping area on the silicon steel sheet. Figure 5 yes Figure 1 Cross-sectional view along the BB axis.

[0030] Figure 6 It is a cross-sectional view summarized in the embodiments of the present application for reflecting the positional relationship between the punching tool and the movable frame.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. workbench; 11. support seat; 111. give way spring; 112. blanking port; 12. conveyor belt; 121. flexible pad; 13. adsorption member; 2. movable frame; 21. movable assembly; 22. connecting frame; 23. lifting member; 24. adjustment assembly; 3. punching tool; 31. arc-shaped portion; 32. connecting rod; 323. first docking surface; 324. second docking surface; 325. motor; 4. controller; 5. peeling assembly; 51. limit spring; 52. limit block; 53. limit rod; 531. first docking rod; 532. second docking rod; 54. discharge member; 541. baffle; 542. linkage frame; 55. limit protrusion; 6. middle column sheet-type silicon steel sheet; 61. strip hole. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] The present application embodiment discloses a shearing device for a central column type silicon steel sheet. Figure 1 and Figure 2 The shearing equipment for the middle column sheet type silicon steel sheet includes a workbench 1, which is a hollow structure. The workbench 1 is provided with a plurality of support seats 11 and a conveyor belt 12 located on both sides of each support seat 11; the support seats 11 and the conveyor belt 12 are detachably connected to the workbench 1. A moving frame 2 and a moving assembly 21 for driving the moving frame 2 to move are provided above the workbench 1. The moving assembly 21 can be a combination structure of a motor screw rod. A lifting member 23 is provided on the moving frame 2. The lifting member 23 can be specifically a cylinder. The driving end of the lifting member 23 is connected to a connecting frame 22. The connecting frame 22 is detachably connected with a plurality of punching tools 3. The punching tools 3 are arranged one by one with the support seats 11.

[0034] In other embodiments, reference Figure 3 If the minimum distance between adjacent punching tools 3 on the connecting frame 22 is greater than the distance required for production, that is, the distance between the strip holes punched by adjacent punching tools 3 is greater than the strip hole spacing required for production, then a movable frame 2 can be configured for each punching tool 3, and all movable frames 2 can be arranged sequentially along the length direction of the workbench 1.

[0035] Reference Figure 1 and Figure 2A yield spring 111 is provided between the support seat 11 and the workbench 1, and the support seat 11 is connected to the workbench 1 by the support spring. A flexible pad 121 is provided on the surface of the support seat 11 and the conveyor belt 12. The flexible pad 121 can be made of rubber material so as to contact the silicon steel sheet on the workbench 1 through the flexible pad 121. A gap is reserved between the support seat 11 and the conveyor belt 12, and an adsorbent 13 is provided at each gap of the workbench 1. The adsorbent 13 is specifically an adsorption tube and an air pump connected to the adsorption tube. The adsorption tube mouth faces the gap, and the air pump is used to evacuate the adsorption tube to form a negative pressure at the gap.

[0036] Reference Figure 1 and Figure 2 , also includes a controller 4, the moving component 21, the lifting component 23, the conveyor belt 12 and the adsorption component 13 are all controlled by the controller 4, and the controller 4 is used to control the opening and closing of the adsorption component 13 and the conveyor belt 12; the controller 4 is also used to control the moving component 21 to drive the moving frame 2 to move in a direction parallel to the length direction of the workbench 1, and pause for a specified time after moving a specified distance, and control the moving component 21 to start and control the moving frame 2 to pause after moving a specified distance when the pause time reaches the specified time, repeat the above-mentioned intermittent movement and pause operations until the punching of the strip hole 61 is completed, and the method for determining whether the punching of the strip hole 61 is completed can be: the default controller 4 pre-stores a corresponding relationship between the specified distance and the punching length of the strip hole 61, and the controller 4 is used to calculate the punching length according to the corresponding relationship and the number of times the moving frame 2 moves the specified distance each time, and when the punching length reaches the required length of the strip hole 61, it is considered that the punching of the strip hole 61 is completed.

[0037] The controller 4 is also used to control the start of the lifting member 23 during the pause period of each time the moving frame 2 pauses, so as to drive the punching tool 3 to perform a lifting operation, and it is considered that during each lifting operation performed by the punching tool 3, the unidirectional movement of the punching tool 3 can form a silicon steel sheet that can penetrate the workbench 1, thereby realizing the punching of the silicon steel sheet.

[0038] Accordingly, refer to Figure 1 , Figure 2 and Figure 4 , Figure 4The three top views of the middle column type silicon steel sheet 6 respectively represent, from left to right, the opening formed on the middle column type silicon steel sheet 6 after the punching tool 3 completes one punching; the opening formed on the middle column type silicon steel sheet 6 after the punching tool 3 completes three punchings, and the top view of the middle column type silicon steel sheet 6 after the strip hole 61 is punched. In addition, the embodiment of the present application exemplarily punches three strip holes on the middle column type silicon steel sheet 6 in the direction indicated by the X arrow simultaneously by three punching tools 3. In other embodiments, the number of punching tools 3 and support seats 11 is consistent with the number of strip holes 61 to be punched and corresponds one to one. The punching tool 3 is located above the strip holes 61 to be formed on the middle column type silicon steel sheet 6, and the support seat 11 is located at the strip holes 61 to be formed on the middle column type silicon steel sheet 6, so as to support the middle column type silicon steel sheet 6.

[0039] Reference Figure 4 and Figure 5 , an adjusting component 24 is also provided on the connecting frame 22, and the adjusting component 24 is used to drive the punching tool 3 to move so that the punching tool 3 moves to the top of the corresponding support seat 11. The adjusting component 24 can be specifically a combination structure of a motor screw arranged in a one-to-one correspondence with each punching tool 3. The punching tool 3 is a hollow tubular structure, and an arc portion 31 is provided at the end of the punching tool 3, so that the end of the strip hole 61 formed after multiple punching by the punching tool 3 is arc-shaped. Correspondingly, during the pause time of two adjacent pauses of the moving frame 2, there is an overlapping area between the punching positions of the silicon steel sheet by the punching tool 3, and during the punching process of the punching tool 3, the arc portion 31 of the punching tool 3 will be located in the overlapping area. That is Figure 3 The overlapping area n is formed by the punching position N shown in the brackets and the punching area N' shown in the brackets.

[0040] Reference Figure 4 and Figure 6 , and also includes a stripping component 5, which is used to drive the waste sheet punched out by the punching tool 3 to move in a direction away from the moving direction of the moving frame 2 after the punching tool 3 penetrates the silicon steel sheet on the workbench 1, so that the waste sheet is separated from the overlapping area formed by the current punching position and the next punching position. Figure 3 and Figure 5 The direction indicated by the X arrow in the figure is the moving direction of the moving frame 2, that is, the punching direction, and the direction indicated by the Y arrow is the moving direction of the waste sheet driven by the punching tool 3.

[0041] Reference Figure 3 and Figure 6The stripping assembly 5 includes a limit spring 51, a limit block 52, a limit rod 53 and a discharge member 54; wherein the limit spring 51, the limit block 52, the limit rod 53 and the punching tool 3 are arranged one by one, the top of the punching tool 3 is connected with a connecting rod 32, the connecting rod 32 is connected to the corresponding limit spring 51, the other end of the limit spring 51 is connected to the connecting frame 22, and the connecting rod 32 is slidably connected to the connecting frame 22 through the corresponding limit spring 51. The limit block 52 is connected to the lower surface of the connecting frame 22 near the corresponding connecting rod 32; the limit rod 53 is connected to the lower surface of the moving frame 2, and the limit rod 53 is located on the side of the corresponding connecting rod 32 away from the limit block 52, and the limit rod 53, the connecting rod 32 and the limit block 52 are arranged in sequence along the direction indicated by the X arrow.

[0042] A limiting protrusion 55 is integrally formed on the side wall of the connecting rod 32 facing the limiting rod 53, and a first docking surface 323 and a second docking surface 324 are provided on the side wall of the limiting rod 53. The first docking surface 323 and the second docking surface 324 are sequentially distributed along the lifting direction of the limiting protrusion 55 as the punching tool 3 is lifted and lowered; when the lifting member 23 is not started, the punching tool 3 is located above the workbench 1, at this time, the limiting protrusion 55 abuts against the first docking surface 323, the limiting spring 51 is in a compressed state, and the side wall of the connecting rod 32 away from the limiting protrusion 55 is attached to the corresponding limiting block 52; When the lifting member 23 starts and drives the punching tool 3 to move downward, the limiting protrusion 55 moves downward with the punching tool 3 and always contacts the first docking surface 323 until the punching tool 3 penetrates the middle column sheet-type silicon steel sheet 6 on the workbench 1. Here, the default stiffness of the yield spring 111 can meet the following requirements: when the punching tool 3 penetrates the middle column sheet-type silicon steel sheet 6, the yield spring 111 is not compressed by the punching tool 3. Then the lifting member 23 drives the punching tool 3 to continue to move downward. At this time, the positioning spring 111 is compressed by the pressure of the punching tool 3, and the support seat 11 moves downward. At this time, the limiting protrusion 55 disengages from the first docking surface 323 and fits onto the second docking surface 324 under the elastic force of the limiting spring 51. In the process of the limiting protrusion 55 moving from the first docking surface 323 to the second docking surface 324, the waste sheet currently punched out by the punching tool 3 will move in the direction indicated by the Y arrow under the drive of the punching tool 3, so that the waste sheet is separated from the overlapping area between the current punching position of the punching tool 3 and the next punching position.

[0043] A material drop opening 112 is formed on the upper surface of the support seat 11 along its length direction. The material drop opening 112 penetrates the support seat 11 and the workbench 1 , and the diameter of the material drop opening 112 is larger than the outer diameter of the waste sheet, so that the waste sheet can pass through the material drop opening 112 when the material drop opening 112 is open. The discharge member 54 is used to open and close the blanking opening 112. Specifically, the discharge member 54 includes a baffle 541 and a linkage frame 542. The baffle 541 is arranged in a one-to-one correspondence with the support seat 11. The baffle 541 is slidably connected to the inner wall of the blanking opening 112 of the corresponding support seat 11. All baffles 541 are commonly connected to the linkage frame 542. The end of the linkage frame 542 away from the baffle 541 is connected to the movable frame 2, and when the movable frame 2 slides in the X direction, the baffle 541 slides with the sliding of the movable frame 2 and opens the blanking opening 112 at the end of the support seat 11 away from the X direction. As the sliding stroke of the movable frame 2 increases, the blanking opening 112 opened by the baffle 541 will also become larger. For example, Figure 3 As shown, if the punching position N is the current punching position of the punching tool 3, when the movable frame 2 moves to the top of the punching position N, the baffle 541 will move under the drive of the movable frame 2, and make the blanking port 112 of the area corresponding to P in an open state. After completing the punching at the punching position N, the waste sheet obtained by the punching at the punching position N will be pushed into the area shown in the bracket P by the punching tool 3 under the limiting action of the first docking surface 323 and the second docking surface 324, so that after the waste sheet moves to the blanking port 112 shown in the bracket P, it will be separated from the workbench 1 under the action of its own weight to realize discharge.

[0044] In addition, it should be noted that the limiting rod 53 includes a first docking rod 531 and a second docking rod 532, the first docking surface 323 is located on the first docking rod 531, the second docking surface 324 is located on the second docking rod 532, and the side wall of the second docking rod 532 is also provided with the first docking surface 323; a motor 325 is provided at the lower end of the first docking rod 531, and the driving end of the motor 325 is connected to the second docking rod 532, and the second docking surface 324 is turned toward or away from the limiting protrusion 55 by the rotation of the motor 325. The motor 325 is controlled by the controller 4, and the controller 4 is used to make the second docking surface 324 on the second docking rod 532 turn toward the limiting protrusion 55 when the punching tool 3 performs the first punching, so that the limiting protrusion 55 always conflicts with the second docking surface 324 during the entire downward movement process with the punching tool 3, and the limiting spring 51 is always in a compressed state, that is, the waste sheet obtained by the first punching will not be pushed by the punching tool 3; When the punching tool 3 completes the first punching and moves up to reset, the controller 4 is used to control the motor 325 to drive the second docking rod 532 to rotate, so that the first docking surface 323 turns toward the limiting protrusion 55, that is, from the second punching, the limiting protrusion 55 will contact the second docking surface 324 as the punching tool 3 moves down, that is, the waste sheet obtained from the second punching will be pushed by the punching tool 3. It should be noted that during the first punching process, the blanking port 112 on the support seat 11 is in a completely closed state. When the first punching is completed and the moving frame 2 drives the punching tool 3 to move to the top of the punching position of the second punching, the baffle 541 moves with the moving frame 2 and opens part of the blanking port 112, and this part of the blanking port 112 can meet the blanking of the waste sheet formed by the second punching after being pushed by the punching tool 3.

[0045] The implementation principle of the shearing equipment for a center column type silicon steel sheet in an embodiment of the present application is as follows: according to the number of strip holes 61 that need to be cut from a single center column type silicon steel sheet 6, the number of punching tools 3 and the number of support seats 11 are determined, and a corresponding number of punching tools 3 are installed on the connecting frame 22, and a corresponding number of support seats 11 are installed on the workbench 1, and the spacing between the punching tools 3 and the spacing between the support seats 11 are adjusted according to the spacing between adjacent strip holes 61, and the punching tools 3 and the support seats 11 are made to correspond one-to-one and be located above the corresponding support seats 11.

[0046] After the installation is completed, the middle column sheet silicon steel sheet 6 is placed on the workbench 1 so that the length direction of the middle column sheet silicon steel sheet 6 is parallel to the length direction of the workbench 1, and the position to be punched of the middle column sheet silicon steel sheet 6 is located on the support seat 11, and the middle column sheet silicon steel sheet 6 is fixed by the adsorption member 13, and then the controller 4 controls the moving assembly 21 to start intermittently and drive the moving frame 2 to move intermittently, and within the specified time when the moving frame 2 is paused each time, the lifting member 23 is controlled to drive the punching tool 3 to move down and penetrate the middle column sheet silicon steel sheet 6 on the support seat 11, and when the punching tool 3 penetrates the middle column sheet silicon steel sheet 6, the lifting member 23 is controlled to drive the punching tool 3 to move down and penetrate the middle column sheet silicon steel sheet 6 on the support seat 11. The columnar silicon steel sheet 6 will continue to move downward, so that the waste sheet obtained by punching moves toward the already opened blanking port 112 driven by the punching tool 3, and falls into the blanking port 112 when it moves above the opened blanking port 112 to realize material discharge, and then the lifting member 23 moves upward to drive the punching tool 3 to move upward and reset, and makes the docking protrusion contact the first docking surface 323 again, completing a single punching operation, and then the controller 4 will control the moving assembly 21 and the lifting member 23 to repeat the above operation, while moving along the X direction to perform punching, until the punching of the strip hole 61 is completed.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A shearing device for a central column type silicon steel sheet, characterized in that: The invention comprises a workbench (1), a movable frame (2) is arranged above the workbench (1), and a movable assembly (21) used for driving the movable frame (2) to reciprocate along the length direction of the workbench (1); a lifting member (23) is arranged on the movable frame (2), and a plurality of punching tools (3) are detachably connected to the movable frame (2), and the lifting member (23) is used for driving the punching tools (3) to reciprocate in a direction approaching or moving away from the workbench (1); and an adjusting assembly (24) is also arranged on the movable frame (2), and the adjusting assembly (24) is used for adjusting the relative positions between the punching tools (3).

2. The shearing device for the center column type silicon steel sheet according to claim 1 is characterized in that: The end of the strip hole (61) is arc-shaped, and the end of the punching tool (3) is provided with an arc-shaped portion (31) adapted to the arc shape of the end of the strip hole (61); the machine also includes a controller (4), and the moving component (21) and the lifting component (23) are controlled by the controller (4); the controller (4) is used to control the moving component (21) to drive the moving frame (2) to move in a direction parallel to the length direction of the workbench (1), and to pause for a specified time after each movement of a specified distance, and to control the moving component (21) to move a specified distance again and then pause after reaching the specified time, until the punching of the strip hole (61) is completed; The controller (4) is also used to control the lifting component (23) to drive the punching tool (3) to move up and down within a specified time period when the moving component (21) drives the moving frame (2) to pause, so that the punching tool (3) penetrates the silicon steel sheet on the workbench (1) during the lifting process.

3. The shearing device for the center column type silicon steel sheet according to claim 2 is characterized in that: When the punching tool (3) punches the middle column sheet-shaped silicon steel sheet (6) twice in succession, there is an overlapping area at the punching positions of the middle column sheet-shaped silicon steel sheet (6), and the arc-shaped portion (31) is located in the overlapping area.

4. The shearing device for the center column type silicon steel sheet according to claim 2 is characterized in that: It also comprises a stripping assembly (5), which is used to drive the waste sheets punched out by the punching tool (3) to move in a direction away from the moving direction of the moving frame (2) after the punching tool (3) penetrates the central column sheet-shaped silicon steel sheet (6), so as to make the waste sheets escape from the overlapping area formed by the current punching position and the next punching position.

5. The shearing device for the center column type silicon steel sheet according to claim 4 is characterized in that: The driving end of the lifting member (23) is connected to a connecting frame (22), and all the punching tools (3) are located on the connecting frame (22); the stripping assembly (5) comprises a limit spring (51), a limit block (52), and a limit rod (53) which are arranged one by one in correspondence with the punching tools (3); a connecting rod (32) is arranged on the top of the punching tool (3), the connecting rod (32) is connected to the limit spring (51), and is slidably connected to the connecting frame (22) through the corresponding limit spring (51), and the limit block (52) is arranged on a side of the connecting frame (22) close to the corresponding punching tool (3); the limit rod (53) is located on a side of the punching tool (3) away from the limit rod (53), and the limit rod (53) is connected to the moving frame (2), and the limit rod (53) and the limit block (52) are arranged in sequence along the punching direction; A limiting protrusion (55) is provided on one side of the connecting rod (32) facing the limiting rod (53); a first butt joint surface (323) for contacting the limiting protrusion (55) during the lifting and lowering of the punching tool (3) and a second butt joint surface (324) for contacting the limiting protrusion (55) during the lifting and lowering of the punching tool (3); when the limiting protrusion (55) contacts the first butt joint surface (323), the limiting spring (51) is in a state of being in contact with the limiting protrusion (55). The limiting block (52) is in a compressed state, and the side wall of the connecting rod (32) is in contact with the limiting block (52). After the punching tool (3) penetrates the silicon steel sheet, the punching tool (3) continues to move downward so that the limiting protrusion (55) moves to the side of the second docking surface (324). At this time, the connecting rod (32) drives the punching tool (3) to move toward the connecting rod (32) under the elastic force of the limiting spring (51), so that the limiting protrusion (55) is in contact with the second docking surface (324). The stripping assembly (5) further comprises a discharge member (54), wherein the discharge member (54) is used to discharge the waste sheets that are taken away from the overlapping area by the punching tool (3) out of the workbench (1).

6. The shearing device for the center column type silicon steel sheet according to claim 5 is characterized in that: A plurality of support seats (11) are arranged on the workbench (1), the support seats (11) are arranged one-to-one corresponding to the punching tools (3) and are located directly below the corresponding punching tools (3), and a yield spring (111) is arranged between the support seat (11) and the workbench (1) so that the support seat (11) is slidably connected to the workbench (1) via the yield spring (111), and the sliding direction of the support seat (11) is parallel to the lifting direction of the punching tool (3).

7. The shearing device for the center column type silicon steel sheet according to claim 6 is characterized in that: The surface of the support seat (11) is provided with a blanking opening (112) for waste sheets to pass through, and the blanking opening (112) passes through the workbench (1). The discharge member (54) is used for opening and closing the blanking opening (112), and is used for opening the blanking opening (112) near the waste sheets, so that the waste sheets taken away from the overlapping area by the punching tool (3) fall into the corresponding blanking opening (112).

8. The shearing device for the center column type silicon steel sheet according to claim 7, characterized in that: The discharge member (54) comprises a baffle (541) and a linkage frame (542); the baffle (541) is slidably connected to the inner wall of the discharge port (112); one end of the linkage frame (542) is connected to the baffle (541) and the other end is connected to the linkage frame (542).

9. The shearing device for the center column type silicon steel sheet according to claim 6, characterized in that: Conveyor belts (12) are respectively arranged on the workbench (1) and on both sides of the support seat (11); the conveyor belts (12) are used to convey the conveyor belt on the workbench (1); and a gap is arranged between the conveyor belt (12) and the support seat (11); an adsorption member (13) is connected to the gap; and the adsorption member (13) is used to control the formation of negative pressure at the gap.

10. The shearing device for the center column type silicon steel sheet according to claim 9, characterized in that: Flexible pads (121) are respectively provided on the surface of the conveyor belt (12) and the surface of the support seat (11).

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