Side hole stamping die

Abstract

The utility model discloses a side hole stamping die which is used for stamping and forming a side hole of a bent product and comprises an upper stamping die body and a lower stamping die body which are matched with each other in the height direction, and an L-shaped limiting structure is arranged on one side of the lower stamping die body and comprises a top limiting structure and a side limiting structure. The stamping lower die is provided with a position avoiding hole in the top limiting structure, the stamping upper die is provided with a punch matched with the position avoiding hole, one side of the stamping lower die is further hinged to a side pressing plate, the side pressing plate is matched with the side limiting structure, and the side pressing plate is hinged to the side limiting structure. After a bent product is placed in the L-shaped limiting structure in place, the bent product can be pressed and fixed at the side limiting structure, then the punching effect can be ensured in a punch forming mode in the vertical direction, and cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping equipment, in particular to a side hole stamping die, which is used for stamping and forming side holes of bent products. Background Art

[0002] After some products are formed by stamping, they need to continue to process side holes at one end after bending, such as side round holes or side square holes. Generally, the side holes need to be punched with a side stamping die.

[0003] However, the side punching die has a complex structure, high processing precision requirements and high manufacturing costs. In addition, the side punching die is prone to excessive blanking clearance or deviation due to processing errors or wear of die guide parts, which can easily cause the product to have excessive punching burrs or even damage die parts. Utility Model Content

[0004] An embodiment of the present application provides a side hole stamping die, which can replace the conventional side stamping die, move from top to bottom to process the side hole, and has uniform and stable force and good punching effect.

[0005] An embodiment of the present application provides a side hole stamping die for stamping and forming side holes of a bent product, wherein the side hole stamping die includes a stamping upper die and a stamping lower die that cooperate with each other in the height direction, wherein the stamping lower die is provided with an L-shaped limiting structure on one side, and the L-shaped limiting structure includes a top limiting structure and a side limiting structure, and the stamping lower die is provided with an avoidance hole in the top limiting structure, and the stamping upper die is provided with a punch that cooperates with the avoidance hole, wherein the stamping lower die is also hinged with a side pressure plate on one side, and the side pressure plate cooperates with the side limiting structure so that the bent product can be pressed and fixed at the side limiting structure after the bent product is put into the L-shaped limiting structure.

[0006] In a possible implementation, the L-shaped limiting structure is a split structure, wherein the top limiting structure and the side limiting structure are clearance-matched, and respectively include two top limiting blocks and two side limiting blocks, wherein a top limiting groove is formed between the two top limiting blocks, and a side limiting groove is formed between the two side limiting blocks, and the top limiting groove and the side limiting groove extend along the same bending direction.

[0007] In a possible implementation, an extension length of the side limiting groove is greater than an extension length of the top limiting groove.

[0008] In a possible implementation, the side pressure plate is provided with a avoidance groove matched with the side limit block and a pressing protrusion matched with the side limit groove.

[0009] In a possible implementation, the side pressure plate extends in a direction perpendicular to the bending direction, and is hinged at one end to the stamping lower die through a hinge shaft. A turning handle is hinged at the other end of the side pressure plate, and the stamping lower die is provided with a slot matching the turning handle, so that when the side pressure plate presses and fixes the bent product, the turning handle can be inserted into the slot to fix the side pressure plate.

[0010] In a possible implementation, an L-shaped connecting block is installed at one end of the side pressure plate away from the hinge axis, the horizontal part of the L-shaped connecting block is vertically connected to the side pressure plate, and the turning handle is hinged between the vertical part of the L-shaped connecting block and the side pressure plate.

[0011] Beneficial effect: Compared with the prior art, the side hole stamping die provided in the present application rotates the side pressure plate to the open state when the die is in the open state, and then the bent product is hung on the L-shaped limiting structure. After being placed in place, the side pressure plate is rotated to the closed state, so that the side pressure plate firmly fixes the bent product on the side, and then the upper stamping die is controlled to press down to close the die, and the avoidance holes of the lower stamping die are cooperated to complete the stamping of the side holes. This can replace the conventional side stamping die, and the vertical stamping process makes the product more evenly stressed and has a good punching effect. At the same time, it can also avoid the problems of high processing precision requirements, high manufacturing costs, and easy damage to the die that the conventional side stamping die has.

[0012] These and other purposes, features and advantages of the present invention are fully reflected in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of the bent product is shown.

[0014] Figure 2 A schematic diagram of the structure of the side hole stamping die of the present application when the die is opened is shown.

[0015] Figure 3 Shows Figure 2 Schematic diagram of the enlarged structure of part A.

[0016] Figure 4 A schematic diagram of the structure of the side hole stamping die of the present application when the die is closed is shown.

[0017] Figure 5 A schematic structural diagram of the side pressure plate in the present application is shown. DETAILED DESCRIPTION

[0018] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0019] Those skilled in the art should understand that, in the disclosure of the specification, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0020] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0021] refer to Figures 1 to 5 The embodiment of the present application provides a side hole stamping die, which is used for stamping and forming a side hole 401 of a bent product 40. The side hole stamping die includes a stamping upper die 10 and a stamping lower die 20 that cooperate with each other in the height direction, wherein the stamping lower die 20 is provided with an L-shaped limiting structure 30 on one side. The L-shaped limiting structure 30 includes a top limiting structure 31 and a side limiting structure 32, wherein the stamping lower die 20 is provided with an avoidance hole in the top limiting structure 31, and the stamping upper die 10 is provided with a punch that cooperates with the avoidance hole, which is used for stamping and forming the side hole 401 in the vertical direction. Compared with the side stamping forming method, this vertical direction stamping forming method can make the force of the bent product 40 more uniform and the punching effect better. In addition, the stamping lower die 20 is also hinged with a side pressure plate 50 on one side, and the side pressure plate 50 cooperates with the side limiting structure 32, so that after the bent product 40 is placed into the L-shaped limiting structure 30, it can press and fix the bent product 40 at the side limiting structure 32, thereby ensuring the punching quality of the bent product 40.

[0022] In one embodiment, the L-shaped limiting structure 30 is a split structure, wherein the top limiting structure 31 and the side limiting structure 32 are clearance-matched, and respectively include two top limiting blocks and two side limiting blocks, wherein a top limiting groove 301 is formed between the two top limiting blocks, and a side limiting groove 302 is formed between the two side limiting blocks, and the top limiting groove 301 and the side limiting groove 302 extend along the same bending direction, thereby not only the bending product 40 can be positioned by the top limiting groove 301 and the side limiting groove 302, but also the raw materials can be effectively saved and the cost can be reduced.

[0023] Further preferably, the extension length of the side limiting groove 302 is greater than the extension length of the top limiting groove 301, that is, the extension length of the side limiting structure 32 is greater than the extension length of the top limiting structure 31, thereby increasing the contact area between the side limiting structure 32 and the side pressure plate 50, thereby ensuring the clamping and fixing effect of the side pressure plate 50 on the bent product 40.

[0024] Further preferably, the side pressure plate 50 is provided with a avoidance groove 501 cooperating with the side limit block and a clamping protrusion 51 cooperating with the side limit groove 302, so as to further increase the contact area between the side limit structure 32 and the side pressure plate 50, thereby ensuring the firmness of the side pressure plate 50 on the bending product 40.

[0025] In one embodiment, the side pressure plate 50 extends in a direction perpendicular to the bending direction. The side pressure plate 50 is hinged to the stamping lower die 20 at one end through a hinge shaft 52, and a handle 53 is hinged to the other end of the side pressure plate 50. Correspondingly, the stamping lower die 20 is provided with a slot 201 that matches the handle 53, so that when the side pressure plate 50 presses and fixes the bent product 40, the handle 53 can be inserted into the slot 201 to fix the side pressure plate 50, thereby ensuring the stability of the side pressure plate 50 pressing the bent product 40.

[0026] Further preferably, an L-shaped connecting block 54 is installed at one end of the side pressure plate 50 away from the hinge shaft 52, wherein the horizontal part of the L-shaped connecting block 54 is vertically connected to the side pressure plate 50, and the turning handle 53 is hinged between the vertical part of the L-shaped connecting block 54 and the side pressure plate 50 to facilitate the disassembly and replacement of the turning handle 53.

[0027] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. Side hole stamping die, used for stamping and forming the side holes of bent products, characterized by: It includes a stamping upper die and a stamping lower die which cooperate with each other in the height direction, wherein the stamping lower die is provided with an L-shaped limiting structure on one side, and the L-shaped limiting structure includes a top limiting structure and a side limiting structure, and the stamping lower die is provided with an avoidance hole in the top limiting structure, and the stamping upper die is provided with a punch which cooperates with the avoidance hole, wherein the stamping lower die is also hinged with a side pressure plate on one side, and the side pressure plate cooperates with the side limiting structure so that the bent product can be pressed and fixed at the side limiting structure after the bent product is put into the L-shaped limiting structure.

2. The side hole punching die according to claim 1, characterized in that: The L-shaped limiting structure is a split structure, wherein the top limiting structure and the side limiting structure are clearance-matched, and respectively include two top limiting blocks and two side limiting blocks, wherein a top limiting groove is formed between the two top limiting blocks, and a side limiting groove is formed between the two side limiting blocks, and the top limiting groove and the side limiting groove extend along the same bending direction.

3. The side hole punching die according to claim 2, characterized in that: The extension length of the side limiting groove is greater than the extension length of the top limiting groove.

4. The side hole punching die according to claim 2 or 3, characterized in that: The side pressure plate is provided with a avoiding groove matched with the side limiting block and a pressing protrusion matched with the side limiting groove.

5. The side hole punching die according to claim 2, characterized in that: The side pressure plate extends in a direction perpendicular to the bending direction, and is hinged at one end through a hinge shaft and the stamping lower die. A turning handle is hinged at the other end of the side pressure plate, and the stamping lower die is provided with a card slot matching the turning handle, so that when the side pressure plate presses and fixes the bent product, the turning handle can be inserted into the card slot to fix the side pressure plate.

6. The side hole punching die according to claim 5, characterized in that: An L-shaped connecting block is installed at one end of the side pressure plate away from the hinge shaft, the horizontal part of the L-shaped connecting block is vertically connected to the side pressure plate, and the turning handle is hinged between the vertical part of the L-shaped connecting block and the side pressure plate.

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