Plate punching die
By designing the fixed structure of the positioning column and the elastic locking column in the sheet punching and cutting mold, the problem of offset of the sheet during processing is solved, and precise control of the plate propulsion distance and material saving is achieved.
Patent Information
- Application Number
- CN202420364628.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-02-26
AI Technical Summary
In the production of hardware, the plate is prone to offset during the movement, resulting in partial overlap of processing positions and residual parts. In the process of preventing offset, the propulsion distance of the plate needs to be reserved for excess, resulting in waste of material .
Design a plate punching and cutting mold, including an upper mold assembly and a lower mold assembly. The punching and cutting assembly consists of a mounting plate, a punching knife, a positioning column and a locking column. The positioning column and a locking column are fixed on the mounting plate and locking column. The column is an elastic column, and the positioning column and the locking column are convexly arranged on the punching cutter. Through these structures, the plate is fixed during the die-closing and cutting operation to prevent deviation.
Through the fixed structure of the positioning column and the locking column, the propulsion distance of the plate can be accurately controlled, material waste can be reduced, processing accuracy can be improved, and the sheet can be offset during stamping.
Smart Images
Figure CN222491708U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of parts processing, in particular to a plate punching die. Background Art
[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, shearing or forging, smelting, stamping and other methods. In short, molds are tools used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry".
[0003] In the production of hardware, stamping and cutting dies are needed. The sheet is placed at the specified position on the die, and then the upper and lower dies of the die are closed. The cutting knife directly stamps and cuts the sheet to produce the required parts, and then the sheet is pushed forward in sequence to process and produce the next part. In order to save materials, the size of the sheet and the advancement distance are generally designed accurately in the early stage. At the same time, considering the offset error during the movement of the sheet, the advancement distance of the sheet will be reserved a little more to prevent the offset of the sheet, resulting in partial overlap of the two processing positions and the production of defective parts.
[0004] Although the above design reduces the scrap rate of parts, it wastes materials to a certain extent. If the offset of the plate during movement can be controlled, the distance the plate is pushed can be shortened, saving the material cost of the plate. Utility Model Content
[0005] The utility model aims to provide a plate punching die to solve the problems in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is to provide a plate punching mold, including an upper mold assembly and a lower mold assembly, the upper mold assembly is provided with a punching assembly, the lower mold assembly is provided with a mold core, the punching assembly is arranged opposite to the mold core, the punching assembly includes a mounting plate, a punching knife, a positioning column and a locking column, the punching knife, the positioning column and the locking column are all fixed on the mounting plate, the positioning column is located on one side of the punching knife, the locking column is located on the other side of the punching knife, the locking column is an elastic column, and the positioning column and the locking column are both convexly arranged on the punching knife.
[0007] Furthermore, there are at least two locking columns, and the multiple locking columns are arranged in a row, and the straight line where the multiple locking columns are located is perpendicular to the conveying direction of the plate material.
[0008] Furthermore, the locking column includes a column body, a spring and a column head. One end of the column body is open and slidably connected to the column head. The spring is located in the column body and abuts against the column head.
[0009] Furthermore, the mold core is provided with a limiting groove, and the plate material slides forward along the limiting groove, and the plate material is adapted to the limiting groove.
[0010] Furthermore, a punching hole is formed after the plate material is punched, and the positioning column abuts against a side wall of the punching hole.
[0011] Furthermore, the mold core is provided with a blanking hole, the punching knife corresponds to the blanking hole, the lower mold assembly is provided with a discharge trough, the discharge trough is connected to the blanking hole, and the punching mold also includes a pushing assembly, which is slidably connected to the discharge trough.
[0012] Furthermore, the direction of the discharge chute is consistent with the conveying direction of the plate material.
[0013] Furthermore, the sheet metal punching die also includes a guide column, the lower die assembly is provided with the guide column near the corner, and the upper die assembly is slidably connected to the guide column.
[0014] The beneficial effects of the utility model are:
[0015] 1. The positioning column is located on one side of the punching knife, and the locking column is located on the other side of the punching knife. The locking column is an elastic column, and both the positioning column and the locking column are convexly arranged on the punching knife. During the die-closing and punching operation, a punching hole is formed after the sheet material is punched, and the sheet material continues to move forward a unit amount after the mold is opened. When the mold is closed again, the positioning column abuts against the side wall of the punching hole, and the locking column abuts against the sheet material. At this time, the sheet is fixed by the positioning column and the locking column to prevent it from shifting under the action of the punching pressure and thus affecting the processing. The advancement distance of the sheet can be accurately designed to save the material cost of the sheet.
[0016] 2. There are at least two locking columns, and the multiple locking columns are arranged in a row. The straight line where the multiple locking columns are located is perpendicular to the conveying direction of the plate material. When two locking columns are used, the two locking columns and the positioning column form a three-point fixing structure, and the plate material can be better locked to prevent deviation.
[0017] 3. The die core is provided with a blanking hole, the punching knife corresponds to the blanking hole, the lower die assembly is provided with a discharge trough, the discharge trough is connected to the blanking hole, and the punching die also includes a pusher assembly, which is slidably connected to the discharge trough. The pusher assembly pushes the parts dropped from the blanking hole out of the discharge trough, making it convenient to collect the parts uniformly. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 A schematic diagram of the overall structure of a plate punching die provided in an embodiment of the utility model;
[0020] Figure 2 A schematic diagram of the overall structure of a plate punching die from another perspective provided in an embodiment of the utility model;
[0021] Figure 3 A schematic diagram of the position of a positioning column used in a plate punching die provided in an embodiment of the utility model;
[0022] Figure 4 A schematic diagram of the position of a locking column used in a plate punching die provided in an embodiment of the utility model.
[0023] Description of reference numerals:
[0024] 1. Upper die assembly; 11. Punching assembly; 111. Mounting plate; 112. Punching knife; 113. Positioning column; 114. Locking column; 2. Lower die assembly; 21. Die core; 211. Limiting groove; 212. Blanking hole; 22. Discharge chute; 3. Sheet material; 31. Punching hole; 4. Guide column. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0029] Reference Figures 1 to 4 A sheet metal punching die provided as an embodiment of the utility model includes an upper die assembly 1 and a lower die assembly 2. The upper die assembly 1 is provided with a punching assembly 11, and the lower die assembly 2 is provided with a die core 21. The punching assembly 11 is arranged opposite to the die core 21. The punching assembly 11 includes a mounting plate 111, a punching knife 112, a positioning column 113 and a locking column 114. The punching knife 112, the positioning column 113 and the locking column 114 are all fixed on the mounting plate 111. The positioning column 113 is located on one side of the punching knife 112, and the locking column 114 is located on the other side of the punching knife 112. The locking column 114 is an elastic column. The positioning column 113 and the locking column 114 are both convexly arranged on the punching knife 112.
[0030] During the die-closing and punching operation, the sheet material 3 is punched to form a punching hole 31, and the sheet material 3 continues to move forward a unit amount after the mold is opened. When the mold is closed again, the positioning column 113 abuts against the side wall of the punching hole 31, and the locking column 114 abuts against the sheet material 3. At this time, the sheet is fixed by the positioning column 113 and the locking column 114 to prevent it from deflecting under the action of the punching force and thus affecting the processing. The advancement distance of the sheet can be accurately designed to save the material cost of the sheet.
[0031] Specifically, the mold also includes a guide column 4, and the lower mold assembly 2 is provided with a guide column 4 near the corner, and the upper mold assembly 1 is slidably connected to the guide column 4. Through the guidance of the guide column 4, the upper mold assembly 1 and the lower mold assembly 2 are accurately molded. There are at least two locking columns 114, and a plurality of locking columns 114 are arranged in a row, and the straight line where the plurality of locking columns 114 are located is perpendicular to the conveying direction of the sheet material 3. When two locking columns 114 are used, the two locking columns 114 and the positioning column 113 form a three-point fixed structure, and the sheet material 3 can be better locked at this time to prevent displacement. In this embodiment, the locking column 114 includes a column body, a spring and a column head. One end of the column body is open and slidably connected to the column head, and the spring is located in the column body and abuts the column head.
[0032] Furthermore, a limiting groove 211 is provided on the mold core 21 , and the plate material 3 slides forward along the limiting groove 211 , and the plate material 3 is adapted to the limiting groove 211 .
[0033] Specifically, a blanking hole 212 is provided on the mold core 21, and the punching knife 112 corresponds to the blanking hole 212. A discharge trough 22 is provided on the lower mold assembly 2, and the discharge trough 22 is connected to the blanking hole 212. The punching mold also includes a pushing assembly, which is slidably connected to the discharge trough 22. The pushing assembly pushes the parts dropped from the blanking hole 212 out of the discharge trough 22, so as to facilitate the unified collection of the parts. In this embodiment, the pushing assembly can adopt a pushing cylinder, and a pushing block is provided at the output end of the pushing cylinder, and the pushing block is adapted to the discharge trough 22 and slidably connected to the discharge trough 22. Among them, the direction of the discharge trough 22 is consistent with the conveying direction of the sheet material 3, so that the waste sheet material 3 and the produced parts are uniformly collected on one side, so that the collection module is centralized and unified, which is convenient for installation and subsequent material transportation.
[0034] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A sheet metal punching die, comprising an upper die assembly (1) and a lower die assembly (2), wherein the upper die assembly (1) is provided with a punching assembly (11), and the lower die assembly (2) is provided with a die core (21), wherein the punching assembly (11) and the die core (21) are arranged opposite to each other, and characterized in that: The punching assembly (11) comprises a mounting plate (111), a punching knife (112), a positioning column (113) and a locking column (114); the punching knife (112), the positioning column (113) and the locking column (114) are all fixed on the mounting plate (111); the positioning column (113) is located on one side of the punching knife (112); the locking column (114) is located on the other side of the punching knife (112); the locking column (114) is an elastic column; the positioning column (113) and the locking column (114) are both protruding from the punching knife (112).
2. The sheet metal punching die according to claim 1, characterized in that: There are at least two locking columns (114), and the plurality of locking columns (114) are arranged in a row, and the straight line where the plurality of locking columns (114) are located is perpendicular to the conveying direction of the plate material (3).
3. The sheet metal punching die according to claim 1, characterized in that: The locking column (114) comprises a column body, a spring and a column head. One end of the column body is open and slidably connected to the column head. The spring is located in the column body and abuts against the column head.
4. The sheet metal punching die according to claim 1, characterized in that: The mold core (21) is provided with a limiting groove (211), and the plate material (3) slides forward along the limiting groove (211), and the plate material (3) is adapted to the limiting groove (211).
5. The sheet metal punching die according to claim 4, characterized in that: A punching hole (31) is formed after the plate material (3) is punched, and the positioning column (113) abuts against the side wall of the punching hole (31).
6. The sheet metal punching die according to claim 5, characterized in that: The mold core (21) is provided with a blanking hole (212), the punching knife (112) corresponds to the blanking hole (212), the lower mold assembly (2) is provided with a discharge trough (22), the discharge trough (22) is connected to the blanking hole (212), and the punching mold also includes a pusher assembly, which is slidably connected to the discharge trough (22).
7. The sheet metal punching die according to claim 6, characterized in that: The direction of the discharge chute (22) is consistent with the conveying direction of the plate material (3).
8. The sheet metal punching die according to claim 1, characterized in that: It also comprises a guide column (4), the guide column (4) is provided at a position close to the corner of the lower mold assembly (2), and the upper mold assembly (1) is slidably connected to the guide column (4).