CN211637953U

CN211637953U - Punching die for sheet parts

Info

Publication number: CN211637953U
Application number: CN201922480775.4U
Authority: CN
Inventors: 钱培方
Original assignee: Wuxi Zhenhua Yimeijia Technology Co ltd
Current assignee: Wuxi Zhenhua Yimeijia Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-09
Anticipated expiration: 2029-12-31

Abstract

The utility model provides a punching die for sheet parts, which relates to the die field and comprises an upper die and a lower die; the upper die is provided with a trimming male die; the lower die is provided with a trimming female die; the shape of the trimming male die is matched with that of the trimming female die; when the upper die and the lower die are assembled, the distance between the trimming convex die and the trimming concave die is 0.05 mm. The utility model discloses a will combine together stamping process and punching process, reduce the technology step to realize the technology of essence cutting through the cooperation of side cut die and side cut terrace die, need carry out the problem of finish machining after the punching press that exists among the prior art has been solved, reduce process time, promote machining efficiency.

Description

Punching die for sheet parts

Technical Field

The utility model relates to a mould especially relates to sheet is cut-out press for part.

Background

A plurality of sheet parts need to be subjected to a stamping process and a punching process; in the prior art, a stamping process and a punching process are two processes which are independent of each other. After the stamping process, the surface of the sheet-like part has uneven bright band, fracture surface and burrs of the stamping. In the prior art, additional finish machining is needed to finish the sheet-shaped part after the stamping process, so that the process steps are increased, and the production efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a lug is with smart punching die to need the fine-machined problem behind the stamping process who exists among the solution prior art, reduce the technology step, promote machining efficiency.

In order to solve the above problem, the utility model provides a technical scheme does:

the utility model provides a punching die for sheet parts, which comprises an upper die and a lower die; the upper die is provided with a trimming male die; the lower die is provided with a trimming female die; the shape of the trimming male die is matched with that of the trimming female die; when the upper die and the lower die are assembled, the distance between the trimming convex die and the trimming concave die is 0.05 mm.

Preferably, a plurality of punching female dies are arranged on the trimming male die; a plurality of punching male dies are arranged on the trimming female die; the punching female die and the punching male die are arranged in pairs.

Preferably, the upper die is provided with a plurality of die guide posts; a plurality of die guide sleeves are arranged on the lower die; the die guide column can be arranged in the die guide sleeve; the die guide columns and the die guide sleeves are arranged in pairs.

Preferably, the side surface of the trimming male die is perpendicular to the bottom surface; the side face of the trimming female die is perpendicular to the bottom face.

Preferably, the device also comprises an upper die sleeve, a lower die sleeve and a pressing mechanism; the upper die sleeve is elastically connected with the pressing mechanism, and the pressing mechanism can move up and down; the pressing part of the pressing mechanism faces downwards; the upper die is fixed on a pressing part of the pressing mechanism; the lower die is fixed on the lower die sleeve.

The technical scheme provided by the utility model, following advantage has:

the utility model provides a punching die for sheet parts, which comprises an upper die and a lower die; the upper die is provided with a trimming male die; the lower die is provided with a trimming female die; the shape of the trimming male die is matched with that of the trimming female die; when the upper die and the lower die are assembled, the distance between the trimming convex die and the trimming concave die is 0.05 mm. The utility model discloses a will combine together stamping process and punching process, reduce the technology step to realize the technology of essence cutting through the cooperation of side cut die and side cut terrace die, need carry out the problem of finish machining after the punching press that exists among the prior art has been solved, reduce process time, promote machining efficiency.

Drawings

The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments when taken in conjunction with the following drawings, in which like reference characters identify like parts throughout. The drawings are not intended to be drawn to scale, emphasis instead being placed upon illustrating the principles of the invention.

Fig. 1 is a sectional view of a punching die for a sheet-like part according to embodiment 1 of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific examples, which should not be construed as limiting the invention.

Example 1:

as shown in fig. 1, a punching die for a sheet-shaped part according to embodiment 1 of the present invention includes an upper die 1 and a lower die 2; the upper die 1 is provided with a trimming convex die 11; the lower die 2 is provided with a trimming female die 21; the shape of the trimming convex die 11 is matched with that of the trimming concave die 21; when the upper die 1 and the lower die 2 are matched, the distance between the trimming convex die 11 and the trimming concave die 21 is 0.05 mm. The utility model combines the punching process into the punching process, and combines the two process steps into one process step, thereby saving the operation time and improving the processing efficiency; the trimming process is tightened to 0.05mm from the normal 1.0mm to achieve the effect of fine blanking, the edges of parts cut out by the trimming female die 21 are neat and have no burrs, the stamped surface is also flat and bright, and the problem that fine machining needs to be carried out after stamping in the prior art is effectively solved.

In order to further improve the effect of combining the punching and the punching trimming process and improve the quality of parts, in the embodiment of the invention, a plurality of punching female dies 111 are arranged on the trimming male die 11; the trimming female die 21 is provided with a plurality of punching male dies 211; the punching female die 111 is provided in pair with the punching male die 211. The terrace dies of punching a hole and cutting edge set up in opposite direction, can avoid punching a hole, the terrace die syntropy of cutting edge is to the drawing of part, has guaranteed that the thickness of part is even relatively, promotes the machining precision.

In order to meet the requirement of precise shear, the gap between the trimming male die 11 and the trimming female die 21 cannot deviate, so the upper die 1 in the embodiment is provided with a plurality of die guide columns 12; a plurality of die guide sleeves 22 are arranged on the lower die 2; the die guide post 12 can be arranged in the die guide sleeve 22; the die guide post 12 and the die guide bush 22 are provided in pair.

In order to further improve the effect of fine trimming, the side surface of the trimming convex die 11 is perpendicular to the bottom surface, and the side surface of the trimming concave die 21 is perpendicular to the bottom surface, so that the edge of the trimming convex die 11 contacting with a part is sharper, the section cut by matching with the trimming concave die 21 is neat, and no burr is left.

The embodiment 1 of the utility model also comprises an upper die sleeve 01, a lower die sleeve 02 and a pressing mechanism 3; the upper die sleeve 01 is elastically connected 4 with the pressing mechanism 3, and the pressing mechanism 3 can move up and down; the pressing part of the pressing mechanism 3 faces downwards; the upper die 1 is fixed on a pressing part of the pressing mechanism 3; the lower die 2 is fixed on the lower die sleeve 02. The upper die sleeve 01 and the lower die sleeve 02 are arranged, so that the stability of the upper die and the lower die in the operation process is ensured, and the stamping effect is improved; the pressing mechanism is arranged to complete the punching process after the upper die sleeve 01 is in butt joint with the lower die sleeve 02 and the die guide post 12 is in butt joint with the die guide sleeve 22.

When the utility model is used for processing in embodiment 1, the upper die sleeve 01 is butted with the lower die sleeve 02, the die guide post 12 is butted with the die guide sleeve 22, and a part is put into the trimming female die 21; starting a pressing mechanism 3 to press down the upper die 1; the trimming male die 11 and the trimming female die 21 are matched to finish the trimming and punching process.

Those skilled in the art will appreciate that variations may be implemented by those skilled in the art in combination with the prior art and the above-described embodiments, and will not be described in detail herein. Such changes do not affect the essence of the present invention, and are not described herein.

The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; the person skilled in the art, without affecting the essence of the invention, may make numerous possible variations and modifications, or may modify the equivalent embodiments, without departing from the technical solution of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. A punching die for a sheet part is characterized by comprising an upper die and a lower die; the upper die is provided with a trimming male die; the lower die is provided with a trimming female die; the shape of the trimming male die is matched with that of the trimming female die; when the upper die and the lower die are assembled, the distance between the trimming convex die and the trimming concave die is 0.05 mm.

2. The punching die for a sheet member according to claim 1, wherein a plurality of punching female dies are provided on the trimming male die; a plurality of punching male dies are arranged on the trimming female die; the punching female die and the punching male die are arranged in pairs.

3. The punching die for a sheet member as set forth in claim 2, wherein a plurality of die guide posts are provided on the upper die; a plurality of die guide sleeves are arranged on the lower die; the die guide column can be arranged in the die guide sleeve; the die guide columns and the die guide sleeves are arranged in pairs.

4. The hole-punching die for a sheet member as set forth in claim 1, wherein the side face of the trimming punch is perpendicular to the bottom face; the side face of the trimming female die is perpendicular to the bottom face.

5. The hole-punching die for a sheet member as set forth in claim 1, further comprising an upper die case, a lower die case and a pressing mechanism; the upper die sleeve is elastically connected with the pressing mechanism, and the pressing mechanism can move up and down; the pressing part of the pressing mechanism faces downwards; the upper die is fixed on a pressing part of the pressing mechanism; the lower die is fixed on the lower die sleeve.