CN204545109U - The drift that a kind of anti-waste material is taken out of - Google Patents

Abstract

The utility model provides the drift that a kind of anti-waste material is taken out of, comprises drift body, sword face, and described drift body is connected with the upper surface in described sword face; Also comprise a breakthrough head, described breakthrough head is tetragonal cone, and the bottom surface of this cone is connected with the lower surface in described sword face, and the value range at the breakthrough angle of described breakthrough head is for being greater than 45 degree and being less than 55 degree; The altitude range of described breakthrough head is 2.7mm ~ 3.3mm.The utility model can overcome because the bad order of part is occurred by taking drift out of waste material during punching, substantially increases production quality and production efficiency.

Description

A punch that prevents waste from being carried out

technical field

The utility model relates to the field of automobile mold production, in particular to a punch for preventing waste from being carried out.

Background technique

In the field of automobile stamping production, because the upper and inner panels of the mold need to design punches, the punches of traditional molds are punched in the plane of the punch. Among them, conventional punches will produce waste after punching during the production process. The phenomenon of being carried back by the punch greatly affects the quality of the produced parts, which is a major problem in the field of stamping production.

Contents of the invention

The technical problem to be solved by the utility model is to provide a punch that prevents the waste from being brought out of the hole, which is to change the plane mode of the traditional mold punch into a breakthrough mode. cut.

The utility model is achieved in that:

A punch that prevents waste from being brought out includes a punch body and a blade surface, and the punch body is connected to the upper end surface of the blade surface; it also includes a breakthrough head, and the breakthrough head is a square cone, The bottom surface of the cone is connected to the lower end surface of the blade surface, the range of the breakthrough angle of the breakthrough head is greater than 45 degrees and less than 55 degrees; the height range of the breakthrough head is 2.7 mm to 3.3 mm.

Further, the blade surface is a flat and smooth surface.

Further, it also includes a mold button, the mold button is provided with a through hole and a positioning pin opening, the punch is clamped in the through hole of the mold button, and the positioning pin opening is clamped in the mold.

Further, a shaping surface is also included, and the shaping surface is respectively connected with the upper end surface of the punch body and the blade surface.

The utility model has the advantages that: the utility model can overcome the poor appearance of the parts caused by the waste material being taken out of the punch when punching, and greatly improves the production quality and production efficiency.

Description of drawings

The utility model will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the enlarged structure of the breakthrough head of the present invention.

Figure 3 is a top view of the mold button.

Fig. 4 is a schematic diagram of the working state of the utility model.

Fig. 5 is a schematic diagram of the structure of the mold button clamped in the mould.

Detailed ways

Please refer to Fig. 1 and Fig. 3, a kind of punch 100 of the utility model to prevent waste from being brought out includes a punch body 1, a shaping surface 2, a blade surface 3, and a breakthrough head 4, and the punch body 1 passes through The shaping surface 2 is connected to the upper end surface 31 of the blade surface 3, and the lower end surface 32 of the blade surface 3 is connected to the bottom surface of the breakthrough head 4;

The breakthrough head 4 is a square cone, which is used to prepress and deform the punched waste to a certain amount before punching;

The breakthrough angle α of the breakthrough head 4 is 50 degrees, and its effect is that the punch will not be severely broken due to the angle exceeding 55 degrees during the breakthrough deformation, and the waste will not be caught back by the breakthrough head, or will not be caught by the breakthrough head because the angle is less than 45 degrees. Insufficient amount of deformation of the waste material will affect the breakthrough effect;

The height h of the breakthrough head 4 is 3 mm, that is, the distance from the apex of the breakthrough head 4 to the bottom surface of the breakthrough head 4 is 3 mm, and if the height h of the breakthrough head 4 exceeds the range of 2.7 mm to 3.3 mm, it will affect Quality after punching, burrs occur;

The blade surface 3 is a flat and smooth surface, and its function is to prevent the surface of the punching from being burnt during the research and matching operation with the punching, which will have an adverse effect on the quality of the punching;

It also includes a mold button 200 matched with the punch 100, the mold button 200 is provided with a through hole 5 and a positioning pin opening 6, the punch 100 is clamped in the through hole 5, and the The positioning pin opening 6 is clamped in the mold 300, and its function is to prevent the punching hole 5 and the punch 100 from collapsing due to eccentricity.

Working principle of the present utility model is as shown in Figure 4 and Figure 5, specifically as follows:

First, the mold button 200 is installed on the mold 300, and the mold button 200 is fixed on the mold 300 through the positioning pin opening 6 on the mold button 200. When using the utility model, the sheet metal is placed on the mold 300. On the mold button 200, align the center line of the breakthrough head 4 of the punch 100 with the axis of the through hole 5 of the mold button 200, and install the punch 100 on the mold button 200 during work. , and then move the punch 100 down into the through hole 5 of the mold button 200, so that the breakthrough head 4 pushes the waste material from the through hole 5 into the mold button 200, and presses it out into a At this time, it is possible to prevent the waste materials from being sucked out of the die button 200 by the breakthrough head 4 of the punch 100, reducing the risk of crushing the parts and the die button 200, and greatly improving the production quality and production efficiency.

Although the specific embodiments of the present utility model have been described above, those skilled in the art should understand that the specific embodiments we describe are only illustrative, rather than used to limit the scope of the present utility model. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present utility model shall fall within the protection scope of the claims of the present utility model.

Claims (4)

1. A punch that prevents waste from being carried out, comprising a punch body and a blade face, the punch body is connected to the upper end surface of the blade face; it is characterized in that: it also includes a breakthrough head, and the breakthrough head is A square cone, the bottom surface of which is connected to the lower end surface of the blade surface, the range of the breakthrough angle of the breakthrough head is greater than 45 degrees and less than 55 degrees; the height range of the breakthrough head is 2.7mm ~3.3mm. 2. The punch for preventing waste from being carried out according to claim 1, wherein the blade surface is a flat and smooth surface. 3. A punch for preventing waste from being carried out as claimed in claim 1, further comprising a die button, the die button is provided with a through hole and a positioning pin opening, and the punch is clamped on the In the through hole of the mold button, and the positioning pin is clamped in the mould. 4 . The punch for preventing waste from being carried out according to claim 1 , further comprising a shaping surface, and the shaping surface is respectively connected with the upper end surface of the punch body and the blade surface. 5 .