JPS63126625A - Burr treatment of shearing part - Google Patents

Abstract

PURPOSE:To eliminate a manual work by pressurizing the burr of a shearing part by the swaging die consisting of the die equipped with a burr deformation guide part and the die relative thereto. CONSTITUTION:A swaging die 15 is composed of the lower die 2 having the deformation guide part 21 for return and the upper die 3 relative thereto. A press pressurizing is performed in the arrow mark direction of the swag ing die 15 so as to pinch the return 11 of a shearing part 1. In this case, the burr 11 of the shearing part 1 is guided by the deformation guide part 21 of the lower die 2 and the swaging is performed without removing the burr 11. With this method, therefore, the removing work of the burr 11 on the shearing face is eliminated, the treatment of sticked powders becomes unnecessary as well and a manual work can wholly be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a burr treatment method for deforming shear burrs in shear parts formed by press working.

[Conventional technology]

Conventional burr processing was a method of removing burrs by polishing, that is, for small sheared parts,
Barrel finishing in which the item to be polished, abrasive, media, combination band, etc. are placed in the barrel and the burrs are removed by rotating the barrel, while the middle item is finished with a belt grinder or disc sander using abrasive cloth paper, etc. Manual removal using abrasive removal methods such as

[Problem that the invention seeks to solve]

The conventional burr treatment was to remove the burrs by polishing as described above. For example, barrel finishing not only has restrictions on dimensions and shape, but is also unsuitable for items that dislike deformation due to dents.
For belt grinder finishing and disc sander finishing,
There are hygiene issues such as the removal powder scattering, and the process is inefficient and unpleasant for people.

This invention was devised to solve the above-mentioned problems, and the burrs of sheared parts are deformed (swaged) by one-step pressurization using a press mold, thereby creating sheared parts that do not generate flying powder. The purpose is to obtain a burr processing method.

[Means for solving problems]

The burr processing method according to the present invention involves press-pressing the vicinity of the burr part of a sheared part by sandwiching it between a swage mold consisting of a lower mold having a burr deformation inducing part and an upper mold that comes into contact with the sloping surface of the sheared part. , the swage deformation is performed so that the burr is not removed but guided by the diamond-shaped guiding part.

In particular, by making the deformation guide part R-shaped, it is possible to perform swage deformation that prevents the burr side surface deformation of the sheared part.

[For production]

In this invention, the burrs of the sheared component are swaged deformed by the deformation guiding section, so there is no need for a polishing operation to remove the burrs.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
In the figure, (1) is a sheared part, and the α sword is a sheared part (
1-inch burr, (2) is a lower mold with a deformation guiding part (21), (3) is an upper mold and an elastically supported support (4)
Together, they form a swage-type song.

In the above configuration, the burr α of the sheared part (1) is created by pressing the swage mold (toward) in the direction of the arrow.
υ is induced by the deformation guiding part (21) of the lower mold (2), and the burr is swaged without being removed, and as shown in Figure 2, the sheared surface (a) of a normal sheared part is [Effects of the Invention] As described above, according to the present invention, the burr of the sheared part is swaged and deformed by one-step pressurization of the swage type having a deformation guiding part. This structure not only solves problems such as the scattering of removed powder, but also has the great effect of eliminating the manual labor that people dislike. This is particularly effective for sheared parts, etc., since there is no need to be careful about adhesion of removed powder.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the principle of a burr treatment method for sheared parts according to an embodiment of the present invention, and FIG. 2 shows a sheared surface of a normal sheared part and a sheared surface after swaging according to the present invention. In Figure 0, which is a cross-sectional perspective view, (1) is a shearing part, (2) is a lower die, (3) is an upper die, (4) is a support,
Ql) is a burr, and (21) is a deformation guiding part. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (2)

[Claims] (1) A first mold having a burr deformation guiding part, and this first mold.
A swage die consisting of a second die facing the die and press-pressing the sheared part so as to clamp the burr, and causing the burr to be swaged and deformed in the deformation guide portion without removing the burr. Burr treatment method. (2) A burr processing method for a sheared component according to claim 1, characterized in that the deformation guiding portion is rounded.