A side-punching die

Abstract

The utility model discloses side face punching die, including floating plate, the guide block of setting on floating plate, and the protruding die fixed insert has inclined surface contact to the guide block, and one end of protruding die fixed insert is fixed on inclined wedge, and the other end is provided with second spring and protruding die, still be provided with floating plate insert on floating plate, and set up the unloading block with through telescopic hole in floating plate insert, and protruding die inserts telescopic hole of unloading block and enters female die insert. Make full use of inclined wedge, guide block structure will the blanking force of vertical direction of punch press into the movement of oblique direction's die structure of cutting, save die, production, artificial cost, and the product size stability of forming, positioning accurate etc. The die structure of the invention provides reference for future inclined plane cutting and horizontal cutting.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, specifically relating to a side punching die. Background Technology

[0002] The conductive sheet of a certain switch is a common component, made of 0.5mm thick 1Cr18Ni9 stainless steel. Its structure is shown below. Figure 1 and Figure 2 The position and shape of the inner hole on the inclined surface of the conductive sheet require high precision. To ensure the positional accuracy and geometric tolerances of the hole, the forming process involves blanking, bending, and punching. Punching the inclined surface is the technical challenge of this part, presenting problems such as difficulty in punching and dimensional instability. Utility Model Content

[0003] In order to solve the above problems, this utility model aims to provide a side punching die.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a side punching die, including a floating plate, a guide block disposed on the floating plate, a punch fixing insert contacting the inclined surface of the guide block, one end of the punch fixing insert being fixed on the wedge, and the other end being provided with a second spring and a punch;

[0005] The floating plate is also equipped with a floating plate insert, and a stripper block with a through expansion hole is set in the floating plate insert. The punch is inserted into the expansion hole of the stripper block and enters the die insert.

[0006] Furthermore, the upper and lower parts of the floating plate are respectively provided with an upper mold assembly and a lower mold assembly. The upper mold assembly, the floating plate and the lower mold assembly are connected and fixed by guide pillars. A guide sleeve is provided inside the floating plate and the guide pillar is fitted inside the guide sleeve.

[0007] Furthermore, the upper mold assembly includes an upper mold base, an upper pad and a mold handle respectively disposed on the lower and upper end faces of the upper mold base, and a fixing plate fitted to the lower end face of the upper pad, the fixing plate being provided with a wedge and a first screw.

[0008] Furthermore, the other end of the first screw is inserted into the floating plate for fixation, and a first spring is sleeved on it.

[0009] Furthermore, the other end of the wedge is an inclined surface, and a cover plate is provided on the inclined surface. The cover plate is connected to the punch fixing insert by a fourth screw. A third screw is provided on the punch fixing insert, and the other end of the third screw is inserted into the floating plate insert for fixation. A second spring is also sleeved on the third screw.

[0010] Furthermore, the lower mold assembly includes a lower mold base, on which a lower pad and a concave template are sequentially arranged, and a concave mold insert is fixed on the concave template.

[0011] Furthermore, the die insert includes a top surface and two inclined surfaces. A positioning pin is provided in the middle of the die insert, and a material leakage hole is provided on one of the inclined surfaces. The material leakage hole and the expansion hole on the floating plate insert are on the same inclined line.

[0012] Furthermore, a floating plate cover is provided on the upper end of the floating plate, and a pressure block is provided on the lower end of the floating plate. The pressure block is directly above the top surface of the die insert. A guide block is also fixed on the floating plate by a second screw. One end of the guide block is a slope, which extends out of the upper end of the floating plate cover and contacts the punch fixing insert.

[0013] Furthermore, the floating plate is fixed with an upper limit post, and the lower pad is fixed with a lower limit post, with the lower limit post sleeved inside the upper limit post.

[0014] Compared with existing technologies, this invention has the following advantages: This device fully utilizes the wedge and guide block structure to convert the vertical punching force of the punch press into an oblique motion punching die structure. Compared with traditional die structures, the beneficial effects of this patent are: this patent saves on die, production, and labor costs, and the formed product has stable dimensions and accurate positioning. This invention's die structure provides a reference for future oblique and transverse punching. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a front view of the formed conductive component in this utility model;

[0017] Figure 2 This is a side view of the formed conductive component in this utility model;

[0018] Figure 3 This is a front view of the concave die insert in this utility model;

[0019] Figure 4 This is a top view of the concave mold insert in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the concave die insert in this utility model;

[0021] In the diagram, 1-upper mold base, 2-upper backing plate, 3-fixing plate, 4-first screw, 5-first spring, 6-pressure block, 7-conductive semi-finished product, 8-floating plate, 9-die insert, 11-die template, 12-lower backing plate, 13-lower mold base, 14-positioning pin, 15-punch, 16-ejector block, 17-floating plate insert, 18-lower limit post, 19-upper limit post, 20-second screw, 21-guide sleeve, 22-guide block, 23-guide post, 24-second spring, 25-third screw, 26-punch fixing insert, 27-fourth screw, 28-cover plate, 29-wedge, 30-mold shank, 31-floating plate cover plate; c-positioning groove; b-die cutting edge; d-positioning hole; a-slip hole. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0023] Semi-finished conductive components are obtained by forming with blanking dies and bending dies, see Figure 1 and Figure 2 The beveled punching of the conductive sheet utilizes the internal hole and external shape for positioning. The die insert 9 is designed with a positioning groove, with a positioning hole d in its center, and a material discharge hole a, a die cutting edge b, and a positioning groove c on its side. (See...) Figure 3 and Figure 4 The side hole punching process of the conductive sheet is completed by using the side slider inclined surface punching method;

[0024] The mold adopts the innovative structure of this patent, with reference to Figure 5 The production process yields the final product.

[0025] This innovative mold consists of an upper mold base 1, an upper backing plate 2, a fixing plate 3, a first screw 4, a spring 5, a pressure block 6, a conductive semi-finished product 7, a floating plate 8, a cavity mold insert 9, a cavity template 11, a lower backing plate 12, a lower mold base 13, a positioning pin 14, a punch 15, a stripper block 16, a floating plate insert 17, a lower limit post 18, an upper limit post 19, a second screw 20, a guide sleeve 21, a guide block 22, a guide post 23, a second spring 24, a third screw 25, a punch fixing insert 26, a fourth screw 27, a cover plate 28, a wedge 29, a mold handle 30, and a floating plate cover plate 31.

[0026] Its working principle is as follows:

[0027] After the mold is installed on the stamping machine and adjusted, the conductive semi-finished product 7 is placed in the mold and positioned by the positioning pin 14. At the same time, the positioning groove c on the side of the die insert 9 achieves longitudinal positioning and realizes dual positioning.

[0028] When the pedal on the press is pressed, the upper die descends, and the upper and lower dies close correctly. This process can be divided into two stages: When the die is in the open state, the floating plate 8 is in a natural state under the action of the first spring 5, and the punch 15 retracts into the unloading block 16 under the action of the second spring 24. When the die descends, the pressure block 6 first contacts the conductive component 7. As the die continues to descend, the guide post 23 enters the guide sleeve 21 and completes the initial positioning. Under the guidance of the lower limit post 18, the upper limit post 19 performs a second precise positioning. The floating plate 8 compresses the first spring 5, causing the pressure block 6 to press the conductive component 7 tightly. At the same time, the wedge 29 moves downward, and the punch fixing insert 26 moves along the specified direction under the action of the guide block 22. The unloading block 16 presses the conductive component 7 tightly, and the punch fixing insert 26 compresses the second spring 25. The punch 15 moves obliquely and acts on the conductive component 7 to complete the punching of the material leakage hole. When the mold moves upward, the second spring 24 returns to its natural state, the punch 15 retracts the stripper block 16, and the punch fixing insert 26 moves obliquely upward along the guide block 22. At that time, the stripper block 16 no longer presses against the conductive part 7, and at the same time completes the stripping function. The first spring 5 returns to its natural state, the floating plate 8 moves upward, and the pressure block 6 does not act on the conductive part, completing the oblique punching process of a conductive part.

[0029] This mold structure is a single-tool mold. Utilizing the shape and internal hole positioning of the conductive component, it cleverly employs a wedge and guide block structure to convert the vertical punching force of the punch press into oblique motion. The punching mold structure is ingeniously applied, with a floating plate, pressure block, and unloading block designed to first clamp the conductive component before punching it, ensuring hole spacing while also allowing for smooth unloading. Guide pillars and guide sleeves are designed for guidance, and upper and lower limit pillars are designed to limit the mold's position. The lower limit pillar has a conical surface for guiding, providing secondary accurate positioning and ensuring the product's positional accuracy and surface quality.

[0030] The foregoing has provided a detailed description of a side punching die provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A side punching die, characterized in that: Includes a floating plate (8), which is set on the floating plate (8). The guide block (22) is on the upper side, and the inclined surface of the guide block (22) contacts the punch fixing insert (26). One end of the punch fixing insert (26) is fixed on the wedge (29), and the other end is provided with a second spring (24) and a punch (15). The floating plate (8) is also provided with a floating plate insert (17), and a stripper block (16) with a through telescopic hole is provided in the floating plate insert (17). The punch (15) is inserted into the telescopic hole of the stripper block (16) and enters the die insert (9).

2. The side punching die according to claim 1, characterized in that: The upper part and the lower part of the floating plate (8) are respectively provided with an upper mold assembly and a lower mold assembly. The upper mold assembly, the floating plate (8) and the lower mold assembly are connected and fixed by guide posts (23). A guide sleeve (21) is provided inside the floating plate (8), and the guide post (23) is fitted inside the guide sleeve (21).

3. The side punching die according to claim 2, characterized in that: The upper mold assembly includes an upper mold base (1), an upper pad (2) and a mold handle (30) respectively disposed on the lower end face and the upper end face of the upper mold base (1), and a fixing plate (3) attached to the lower end face of the upper pad (2). The fixing plate (3) is provided with a wedge (29) and a first screw (4).

4. The side punching die according to claim 3, characterized in that: The other end of the first screw (4) is inserted into the floating plate (8) for fixation, and a first spring (5) is sleeved on it.

5. The side punching die according to claim 3, characterized in that: The other end of the wedge (29) is an inclined surface, and a cover plate (28) is provided on the inclined surface. The cover plate (28) is connected to the punch fixing insert (26) by a fourth screw (27). A third screw (25) is provided on the punch fixing insert (26). The other end of the third screw (25) is inserted into the floating plate insert (17) for fixing. A second spring (24) is also sleeved on the third screw (25).

6. The side punching die according to claim 2, characterized in that: The lower mold assembly includes a lower mold base (13), on which a lower pad (12) and a concave template (11) are sequentially arranged, and a concave mold insert (9) is fixed on the concave template.

7. The side punching die according to claim 1 or 6, characterized in that: The die insert (9) includes a top surface and two inclined surfaces. A positioning pin (14) is provided in the middle of the die insert (9). A material leakage hole (a) is provided on one inclined surface, and a positioning groove (c) is provided on both inclined surfaces. The material leakage hole (a) and the expansion hole on the floating plate insert (17) are on the same inclined line.

8. The side punching die according to claim 1, characterized in that: The upper end of the floating plate (8) is provided with a floating plate cover plate (31), and the lower end of the floating plate (8) is provided with a pressure block (6). The pressure block (6) is directly above the top surface of the die insert (9). A guide block (22) is also fixed on the floating plate (8) by a second screw (20). One side of the guide block (22) is a slope, which extends out of the upper end of the floating plate cover plate (31) and contacts the punch fixing insert (26).

9. The side punching die according to claim 1, characterized in that: The floating plate (8) is fixed with an upper limit post (19), and the lower pad (12) is fixed with a lower limit post (18). The lower limit post (18) is sleeved inside the upper limit post (19).

Images