JPH0460343U

JPH0460343U -

Info

Publication number: JPH0460343U
Application number: JP10068290U
Authority: JP
Priority date: 1990-09-26
Filing date: 1990-09-26
Publication date: 1992-05-25

Description

[Brief explanation of the drawing]

第１図は本考案のポンチの取付構造を示す縦断
面図、第２図は同平面図、第３図は他の実施例を
示す部分的縦断面図、第４図は従来例を示す部分
的縦断面図である。尚同図中、１はポンチ、２は素材、３はポンチ
本体、４は分割型、５は保持部材、６は支持台、
１７ａ，１７ｂは凹溝、１８はキー部材、２０は
内リング、２１は外リング、２２は接合面、２４
は環状凹溝、５１はポンチ本体、５２は保持部材
を示す。 Fig. 1 is a longitudinal sectional view showing the mounting structure of the punch of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a partial longitudinal sectional view showing another embodiment, and Fig. 4 is a portion showing a conventional example. FIG. In the figure, 1 is a punch, 2 is a material, 3 is a punch body, 4 is a split type, 5 is a holding member, 6 is a support stand,
17a, 17b are concave grooves, 18 is a key member, 20 is an inner ring, 21 is an outer ring, 22 is a joint surface, 24
51 indicates an annular groove, 51 indicates a punch body, and 52 indicates a holding member.

Claims

[Claims for Utility Model Registration] (1) A ring-shaped holding member is used to cover the outer periphery of the proximal end of the punch body, which is tapered in a tapered manner and is provided with a split die that is slidable along the axial direction on the outer periphery. In the punch mounting structure in which the holding member is attached to the support base, an annular groove or a plurality of grooves along the circumferential direction are provided on the outer periphery of the proximal end of the punch body, and the groove is provided with a plurality of grooves along the circumferential direction. A punch mounting structure characterized in that grooves are correspondingly formed on the inner periphery of the holding member, and key members for supporting axial loads are engaged in these grooves. (2) The proximal outer periphery of the punch body, which is tapered on a taper and is equipped with a split die that can be slid along the axial direction on the outer periphery, is supported by a ring-shaped holding member, and this holding member is attached to a support stand. In the punch mounting structure, the holding member has an inner ring that can be fitted into an annular groove on the base end side of the punch body and can be divided into a plurality of pieces, and an inner ring that can be fitted on the outside of the inner ring. The outer ring is fixed to the support base, and the outer wall surface of the inner ring and the inner wall surface of the outer ring are provided with a step-like step forming a joint surface on a plane perpendicular to the axial direction. A punch mounting structure characterized by screwing the to the punch body.