A perforated structure for silicon steel sheets

Abstract

This invention discloses a silicon steel sheet punching structure, relating to the field of silicon steel sheet processing technology. This silicon steel sheet punching structure utilizes a silicon steel sheet placement base to provide convenient placement conditions for the silicon steel sheet to be punched. With the coordinated arrangement of two clamping and limiting components and a top-pressing component, pre-adjustment of the moving end of the clamping and limiting components ensures that the top-pressing component lowers to a set height to limit the end of the silicon steel sheet to be punched. Combined with the punching drive component and punching head, the silicon steel sheet to be punched can be pre-pressed and limited at the top before punching, ensuring stability during the punching process and guaranteeing punching quality. Furthermore, the automated clamping and positioning of the silicon steel sheet allows for automated release of the limits after punching, facilitating convenient handling and placement of the silicon steel sheet, effectively improving the punching efficiency of silicon steel sheets.

Description

Technical Field

[0001] This invention relates to the field of silicon steel sheet processing technology, specifically to a silicon steel sheet punching structure. Background Technology

[0002] The transformer core frame mainly constitutes the electromagnetic circuit in the transformer's electromagnetic field. However, the core frame is made up of many thin silicon steel sheets, which are stacked one by one according to certain rules. Currently, large transformers are still manually stacked due to the large size and heavy weight of the silicon steel sheets, which is labor-intensive, time-consuming, and inefficient. In order to improve the neatness of stacked silicon steel sheets, through holes are opened on the silicon steel sheets, which effectively improves the assembly efficiency of the core.

[0003] Existing methods for punching silicon steel sheets typically involve using molds of predetermined dimensions. This requires manual clamping and positioning before punching, followed by manual release of the clamps and removal of the sheet after punching. This process is complex and inefficient. Therefore, a new silicon steel sheet punching structure is proposed. After device debugging, this structure enables continuous and convenient punching of silicon steel sheets of the same size, making it more convenient to use and effectively improving the punching efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a silicon steel sheet punching structure that solves the problems of high cost and low efficiency in existing silicon steel sheet punching.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a silicon steel sheet punching structure, comprising a support base and two punching heads disposed on the support base, wherein a punching drive assembly for use in conjunction with the two punching heads is fixedly installed on the top of the support base, and clamping and limiting assemblies are provided on both sides of the top of the support base, and two sets of silicon steel sheet placement seats are disposed between the two clamping and limiting assemblies, wherein the two sets of silicon steel sheet placement seats are used to hold the silicon steel sheet to be punched, and the silicon steel sheet placement seats are used in conjunction with the clamping and limiting assemblies; The top of the silicon steel sheet placement seat is provided with a pressing component, which is used in conjunction with the punching drive component to limit the top and end of the silicon steel sheet.

[0006] The present invention is further configured such that: the punching drive assembly includes a bracket, an electric telescopic rod is fixedly installed on the top of the bracket, the telescopic end of the electric telescopic rod passes through the bracket and is fixedly connected to an assembly base; A stepped groove is provided on one side of the assembly base, and two stepped blocks are slidably installed inside the stepped groove. The two stamping heads are respectively fixedly installed at the bottom of the two stepped blocks. The bracket is fixedly installed on top of the support base.

[0007] The present invention is further configured such that: the clamping and limiting assembly includes a fixing plate, an adjusting screw is threadedly installed through one side of the fixing plate, a push plate is rotatably installed at one end of the adjusting screw via a bearing, and a first right trapezoidal plate is fixedly installed on one side of the push plate via a rubber plate; The two fixing plates are respectively fixedly installed on both sides of the top of the support base, and the two first right-angled trapezoidal plates are disposed between the two fixing plates. The bottoms of the two fixing plates and the two first right-angled trapezoidal plates are in sliding contact with the top of the support base.

[0008] The present invention is further configured such that: the silicon steel sheet placement seat includes a long slide plate and a center plate, a fork plate is fixedly installed on one side of the long slide plate, the top of the fork plate is provided with a groove adapted to the silicon steel sheet, and the bottom of the inner cavity of the groove is provided with a material hole adapted to the stamping head.

[0009] The present invention is further configured such that: convex through slots are provided on both sides of the top of the support base; two long slide plates are slidably installed inside the two convex through slots; the center plate is fixedly installed in the middle of the bottom of the support base; four guide rods are slidably installed through the surface of the center plate; a first spring is sleeved on the outer periphery of each of the four guide rods; one end of two guide rods is fixedly connected to one side of a long slide plate; the two ends of the two first springs are fixedly connected to one side of a long slide plate and one side of the center plate, respectively; one end of the remaining two guide rods is fixedly connected to one side of another long slide plate; the two ends of the remaining two first springs are fixedly connected to one side of another long slide plate and the other side of the center plate, respectively. The bottom of the fork plate slides in contact with the top of the support base.

[0010] The present invention is further configured such that: the top pressing assembly includes a pre-pressing plate frame, a clamping plate and two uprights are fixedly installed at the bottom of the pre-pressing plate frame, two connecting rods are fixedly installed at the top of the pre-pressing plate frame, a cooperating plate is slidably mounted on the outer periphery of the two connecting rods, and a limit head is fixedly installed at the top of the connecting rods; a second spring is sleeved on the outer periphery of the connecting rods, and the two ends of the second spring are fixedly connected to the bottom of the cooperating plate and the top of the pre-pressing plate frame, respectively. The top of the pre-pressing plate frame is provided with a guide hole that is compatible with the punching head.

[0011] The invention is further configured such that: the top of the long slide plate is provided with a through hole for use with two uprights, one side of the clamping plate is in sliding contact with one side of the long slide plate, and the bottom of the clamping plate extends into the interior of the fork plate; The two cooperative plates are fixedly connected to the opposite sides of the two step blocks, respectively.

[0012] The present invention is further configured such that a second right-angled trapezoidal plate is fixedly installed on each of the two pre-pressing plate frames on opposite sides, and the inclined surface of the second right-angled trapezoidal plate is used in conjunction with the inclined surface of the first right-angled trapezoidal plate.

[0013] This invention provides a perforated structure for silicon steel sheets. It has the following beneficial effects: (1) The present invention provides convenient placement conditions for silicon steel sheets to be punched by utilizing a silicon steel sheet placement seat. With the cooperation of two clamping and limiting components and a top pressing component, the pre-adjustment of the moving end of the clamping and limiting component can ensure that the end of the silicon steel sheet to be punched is limited after the top pressing component descends to a set height. With the setting of the punching drive component and the punching head, the silicon steel sheet to be punched can be squeezed and limited at the top before punching, ensuring the stability of the punching process and providing a guarantee for the punching quality. In addition, the automatic clamping and positioning of the silicon steel sheet can also realize the automatic release of the silicon steel sheet limit after punching, providing convenient conditions for the easy picking and putting of the silicon steel sheet and effectively improving the punching efficiency of the silicon steel sheet.

[0014] (2) By setting up a cooperating plate, a connecting rod, a second spring and a pre-pressing plate frame, the present invention ensures stable extrusion and positioning of the silicon steel sheet to be punched by setting up a cooperating plate, a connecting rod, a second spring and a pre-pressing plate frame when the assembly seat pushes the cooperating plate down.

[0015] (3) By setting the first spring, the present invention ensures that the two clamping plates are effectively separated from the silicon steel sheet after the electric telescopic rod is retracted and reset, which provides convenient conditions for the removal and placement of the silicon steel sheet, and thus provides effective support for improving the punching efficiency of the silicon steel sheet. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the external structure of the present invention from an upward perspective; Figure 3 This is a schematic diagram showing the connection between the support base and the clamping and limiting component structure of the present invention; Figure 4 This is a schematic diagram showing the connection between the punching head and the punching drive assembly structure of the present invention; Figure 5 This is a schematic diagram showing the connection of the stamping head, stepped block, cooperating plate, and assembly base structure of the present invention. Figure 6 This is a schematic diagram showing the connection of the stamping head, stepped block, iron core placement seat, and top pressing assembly structure of the present invention; Figure 7 This is a schematic diagram showing the connection of the pre-compression plate frame, clamping plate, upright, connecting rod, guide hole, and second right-angled trapezoidal plate structure of the present invention. Figure 8This is a schematic diagram showing the connection of the long slide plate, fork plate, groove, material hole, guide rod and through hole structure of the present invention.

[0017] In the picture: 1. Support base; 101. Convex through groove; 2. Stamping head; 3. Punching drive assembly; 301. Bracket; 302. Electric telescopic rod; 303. Mounting base; 304. Step groove; 305. Step block; 4. Clamping and limiting assembly; 401. Fixing plate; 402. Adjusting screw; 403. Push plate; 404. Rubber plate; 405. First right-angled trapezoidal plate; 5. Steel sheet holder; 501. Long slide plate; 502. Center plate; 503. Fork plate; 504. Groove; 505. Material hole; 506. Guide rod; 507. First spring; 508. Through hole; 6. Top pressure assembly; 601. Pre-pressure plate frame; 602. Clamping plate; 603. Upright pole; 604. Connecting rod; 605. Cooperative plate; 606. Limiting head; 607. Second spring; 608. Guide hole; 609. Second right-angled trapezoidal plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] Please see Figure 1-8 The present invention provides the following technical solution: a silicon steel sheet punching structure, comprising a support base 1, two punching heads 2, a punching drive assembly 3, two clamping and limiting assemblies 4, two sets of silicon steel sheet placement seats 5, and two top pressing assemblies 6. The punching drive assembly 3 includes a bracket 301, which is fixedly installed on the top of the support base 1. An electric telescopic rod 302 is fixedly installed on the top of the bracket 301. The electric telescopic rod 302 serves as the sole power source and is electrically connected to an external power source. It is controlled by a control switch. The telescopic end of the electric telescopic rod 302 passes through the bracket 301 and is fixedly connected to an assembly base 303. A stepped groove 304 is provided on one side of the assembly base 303. Two stepped blocks 305 are slidably installed inside the stepped groove 304. The two punching heads 2 are respectively fixedly installed at the bottom of the two stepped blocks 305.

[0020] As a preferred embodiment, in order to facilitate the initial position limit of the silicon steel sheet to be punched, the silicon steel sheet placement seat 5 includes a long sliding plate 501 and a center plate 502. The top of the support seat 1 has convex through slots 101 on both sides. The two long sliding plates 501 are slidably installed inside the two convex through slots 101 respectively. The center plate 502 is fixedly installed in the middle of the bottom of the support seat 1. A fork plate 503 is fixedly installed on one side of the long sliding plate 501. The bottom of the fork plate 503 is in sliding contact with the top of the support seat 1. The top of the fork plate 503 has a groove 504 that matches the silicon steel sheet. The bottom of the inner cavity of the groove 504 has a material hole 505 that matches the punching head 2. The silicon steel sheet to be punched can be initially positioned by placing it in the two grooves 504.

[0021] As a preferred embodiment, in order to achieve end-limiting guidance of the silicon steel sheet to be punched, the clamping and limiting assembly 4 includes a fixing plate 401. Two fixing plates 401 are respectively fixedly installed on both sides of the top of the support base 1. An adjusting screw 402 is threaded through and installed on one side of the fixing plate 401. A push plate 403 is rotatably installed on one end of the adjusting screw 402 through a bearing. A first right-angled trapezoidal plate 405 is fixedly installed on one side of the push plate 403 through a rubber plate 404. Both first right-angled trapezoidal plates 405 are arranged between the two fixing plates 401. The bottoms of the two fixing plates 401 and the two first right-angled trapezoidal plates 405 are in sliding contact with the top of the support base 1. By adjusting the position of the first right-angled trapezoidal plates 405, the lateral movement guidance of the vertically downward moving top pressing assembly 6 can be achieved.

[0022] As a preferred embodiment, in order to clamp and position the silicon steel sheet to be punched before stamping, the top pressing assembly 6 includes a pre-pressing plate frame 601. The top of the pre-pressing plate frame 601 has a guide hole 608 adapted to the punching head 2. The bottom of the pre-pressing plate frame 601 is fixedly installed with a clamping plate 602 and two uprights 603. The top of the pre-pressing plate frame 601 is fixedly installed with two connecting rods 604. The outer periphery of the two connecting rods 604 is sleeved and slidably installed with a cooperating plate 605. The two cooperating plates 605 are opposite to each other. The two sides are fixedly connected to the opposite sides of the two step blocks 305, and the top of the connecting rod 604 is fixedly installed with a limit head 606. The outer periphery of the connecting rod 604 is fitted with a second spring 607. The two ends of the second spring 607 are fixedly connected to the bottom of the cooperating plate 605 and the top of the pre-pressing plate frame 601, respectively. The opposite sides of the two pre-pressing plate frames 601 are fixedly installed with a second right-angled trapezoidal plate 609. The inclined surface of the second right-angled trapezoidal plate 609 is used in conjunction with the inclined surface of the first right-angled trapezoidal plate 405.

[0023] To further explain, in order to ensure the relative stability of the position of the pre-pressing plate frame 601 and the automatic separation of the clamping plate 602 from the silicon steel sheet after the punching process is completed, the top of the long slide plate 501 is provided with a through hole 508 that cooperates with the two uprights 603. One side of the clamping plate 602 slides in contact with one side of the long slide plate 501, and the bottom of the clamping plate 602 extends into the interior of the fork plate 503. Four guide rods 506 are slidably installed through the surface of the center plate 502. Each of the four guide rods 506 is fitted with a first spring 507. One end of two guide rods 506 is fixedly connected to one side of a long slide plate 501, and the two ends of the two first springs 507 are fixedly connected to one side of a long slide plate 501 and one side of the center plate 502, respectively. One end of the remaining two guide rods 506 is fixedly connected to one side of another long slide plate 501, and the two ends of the remaining two first springs 507 are fixedly connected to one side of another long slide plate 501 and the other side of the center plate 502, respectively.

[0024] The punching method for the aforementioned silicon steel sheet punching structure specifically includes the following steps: Step 1: Place the silicon steel sheet to be stamped in the two grooves 504, control the extension of the electric telescopic rod 302, the electric telescopic rod 302 pushes the assembly seat 303 to move downward, the assembly seat 303 drives the step block 305 to move the cooperating plate 605 downward, the cooperating plate 605 pushes the pre-pressing plate frame 601 through the second spring 607 to make the second right-angled trapezoidal plate 609 and the clamping plate 602 descend. After the inclined surface of the second right-angled trapezoidal plate 609 disengages from the inclined surface of the first right-angled trapezoidal plate 405, stop the extension of the electric telescopic rod 302, rotate the adjusting screw 402 to drive the push plate 403 to squeeze the rubber plate 404, so that the first right-angled trapezoidal plate 405 squeezes the second right-angled trapezoidal plate 609. After the second right-angled trapezoidal plate 609 pushes the pre-pressing plate frame 601 to drive the clamping plate 602 to clamp the silicon steel sheet to be stamped, the debugging is completed, and the electric telescopic rod 302 is controlled to retract and reset. Step 2: After the device completes the reset, the electric telescopic rod 302 is extended. The electric telescopic rod 302 pushes the assembly seat 303 to move downward. The assembly seat 303 drives the step block 305 to move the cooperating plate 605 downward. The cooperating plate 605 compresses the second spring 607. The second spring 607 pushes the pre-pressing plate frame 601 to lower the second right-angled trapezoidal plate 609 and the clamping plate 602. After the inclined surface of the second clamping plate 602 contacts the inclined surface of the first clamping plate 602, as the second right-angled trapezoidal plate 609 continues to descend, the second right-angled trapezoidal plate 609 drives the pre-pressing plate frame 601 to move closer to the silicon steel sheet to be punched. The pre-pressing plate frame 601 drives the clamping plate 602 to approach the silicon steel sheet with punches. After the inclined surface of the second right-angled trapezoidal plate 609 disengages from the inclined surface of the first right-angled trapezoidal plate 405, the two clamping plates 602 complete the end limit of the silicon steel sheet to be punched. During the process of the pre-pressing plate frame 601 driving the clamping plate 602 to approach the perforated silicon steel sheet, the pre-pressing plate frame 601 drives the long slide plate 501 to slide in the convex through groove 101 through the upright 603. During the process, the long slide plate 501 squeezes the first spring 507. Step 3: As the pre-pressing plate 601 continues to descend, it first contacts the top of the silicon steel sheet to be punched. As the electric telescopic rod 302 continues to extend, the cooperating plate 605 limits the top of the pre-pressing plate 601 to be punched through the second spring 607. After the punching head 2 passes through the guide hole 608, it punches the silicon steel sheet to be punched and discharges the punched waste material from the material hole 505. Then, the electric telescopic rod 302 is controlled to retract and reset, completing one punching operation. Step 4: During the retraction and reset process of the electric telescopic rod 302 in Step 3, with the cooperation of the limit head 606, the assembly base 303 is driven to move the cooperating plate 605 upward. After the inclined surface of the second right-angled trapezoidal plate 609 moves to the inclined surface facing the first right-angled trapezoidal plate 405, the first spring 507 resets and pushes the long slide plate 501 to move. The long slide plate 501 drives the pre-pressing plate frame 601 through the upright rod 603 to disengage the clamping plate 602 from the end of the punched silicon steel sheet. At this time, the punched silicon steel sheet can be taken out and replaced with a new silicon steel sheet to be punched. Repeat the operations of Step 2 and Step 3 to perform the silicon steel sheet punching operation.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A punching structure for silicon steel sheets, comprising a support base (1) and two punching heads (2) disposed above the support base (1), characterized in that: The top of the support base (1) is fixedly installed with a punching drive assembly (3) that works in conjunction with two punching heads (2). Both sides of the top of the support base (1) are provided with clamping and limiting assemblies (4). Two sets of silicon steel sheet placement seats (5) are provided between the two clamping and limiting assemblies (4). The two sets of silicon steel sheet placement seats (5) are used to hold the silicon steel sheets to be punched, and the silicon steel sheet placement seats (5) work in conjunction with the clamping and limiting assemblies (4). The top of the silicon steel sheet placement seat (5) is provided with a top pressing component (6), which is used in conjunction with the punching drive component (3) to limit the top and end of the silicon steel sheet; The clamping and limiting assembly (4) includes a fixing plate (401), an adjusting screw (402) is threaded through and installed on one side of the fixing plate (401), a push plate (403) is rotatably installed on one end of the adjusting screw (402) via a bearing, and a first right trapezoidal plate (405) is fixedly installed on one side of the push plate (403) via a rubber plate (404). The two fixing plates (401) are respectively fixedly installed on both sides of the top of the support base (1), and the two first right-angled trapezoidal plates (405) are both arranged between the two fixing plates (401). The bottoms of the two fixing plates (401) and the two first right-angled trapezoidal plates (405) are in sliding contact with the top of the support base (1). The top-pressing assembly (6) includes a pre-pressing plate frame (601), a clamping plate (602) and two uprights (603) are fixedly installed at the bottom of the pre-pressing plate frame (601), and two connecting rods (604) are fixedly installed at the top of the pre-pressing plate frame (601). A cooperating plate (605) is sleeved and slidably installed on the outer periphery of the two connecting rods (604), and a limit head (606) is fixedly installed at the top of the connecting rod (604). A second spring (607) is sleeved on the outer periphery of the connecting rod (604), and the two ends of the second spring (607) are fixedly connected to the bottom of the cooperating plate (605) and the top of the pre-pressing plate frame (601) respectively. The top of the pre-press plate frame (601) is provided with a guide hole (608) that is compatible with the punch head (2). A second right-angled trapezoidal plate (609) is fixedly installed on the opposite side of each of the two pre-pressing plate frames (601), and the inclined surface of the second right-angled trapezoidal plate (609) is used in conjunction with the inclined surface of the first right-angled trapezoidal plate (405).

2. The silicon steel sheet punching structure according to claim 1, characterized in that: The punching drive assembly (3) includes a bracket (301), an electric telescopic rod (302) is fixedly installed on the top of the bracket (301), the telescopic end of the electric telescopic rod (302) passes through the bracket (301) and is fixedly connected to a mounting base (303). A stepped groove (304) is provided on one side of the mounting base (303), and two stepped blocks (305) are slidably installed inside the stepped groove (304). The two stamping heads (2) are respectively fixedly installed at the bottom of the two stepped blocks (305). The bracket (301) is fixedly installed on the top of the support base (1).

3. The silicon steel sheet punching structure according to claim 1, characterized in that: The silicon steel sheet placement seat (5) includes a long slide plate (501) and a center plate (502). A fork plate (503) is fixedly installed on one side of the long slide plate (501). A groove (504) adapted to the silicon steel sheet is opened on the top of the fork plate (503). A material hole (505) adapted to the stamping head (2) is opened at the bottom of the inner cavity of the groove (504).

4. The silicon steel sheet punching structure according to claim 3, characterized in that: The support base (1) has convex through slots (101) on both sides of its top. Two long slide plates (501) are slidably installed inside the two convex through slots (101). The center plate (502) is fixedly installed in the middle of the bottom of the support base (1). Four guide rods (506) are slidably installed through the surface of the center plate (502). A first spring (507) is sleeved on the outer periphery of each of the four guide rods (506). One end of two guide rods (506) is fixedly connected to one side of a long slide plate (501). The two ends of the two first springs (507) are fixedly connected to one side of a long slide plate (501) and one side of the center plate (502), respectively. One end of the remaining two guide rods (506) is fixedly connected to one side of another long slide plate (501). The two ends of the remaining two first springs (507) are fixedly connected to one side of another long slide plate (501) and one side of the center plate (502), respectively. The bottom of the fork plate (503) slides in contact with the top of the support base (1).

5. The silicon steel sheet punching structure according to claim 3, characterized in that: The top of the long slide plate (501) is provided with a through hole (508) that cooperates with the two uprights (603). One side of the clamping plate (602) slides in contact with one side of the long slide plate (501), and the bottom of the clamping plate (602) extends into the interior of the fork plate (503). The two cooperative plates (605) are fixedly connected to the opposite sides of the two step blocks (305) respectively.

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