JPS62109816U

JPS62109816U -

Info

Publication number: JPS62109816U
Application number: JP20186085U
Authority: JP
Priority date: 1985-12-27
Filing date: 1985-12-27
Publication date: 1987-07-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係わるバーリング
加工用カム型を示す断面図、第２図は第１図の
―線に沿う平面側断面図、第３図は第２図にお
ける―線に沿う断面図、第４図Ａ〜Ｄは第１
〜３図に示す本考案のカム型の加工工程を示す要
部拡大断面図、第５図Ａ，Ｂはワークの一例を示
す斜視図と断面図、第６図及び第７図はそれぞれ
従来のバーリング加工用のカム型を示す断面図で
ある。２０……基台、２１……第１ダイ、２３……第
１スライドカム、２４……大径加工部、２５……
ポンチ、２６……可動式スペーサ、２７……小径
加工部、２９……第２スライドカム、３０……第
２ダイ、３１……支持ブロツク、３５，３６……
バツクアツププレート、３７……上ホルダー、４
０……第１ドライブカム、４４……第２ドライブ
カム、４７……第３ドライブカム。 Fig. 1 is a sectional view showing a burring cam mold according to an embodiment of the present invention, Fig. 2 is a plan side sectional view taken along the - line in Fig. 1, and Fig. 3 is a sectional view along the - line in Fig. 2. 4A to D are cross-sectional views along the 1st
Figures 5A and 5B are perspective views and sectional views showing an example of a workpiece, and Figures 6 and 7 are respectively enlarged cross-sectional views of main parts showing the machining process of the cam type of the present invention. It is a sectional view showing a cam die for burring processing. 20... Base, 21... First die, 23... First slide cam, 24... Large diameter processing section, 25...
Punch, 26...Movable spacer, 27...Small diameter processing section, 29...Second slide cam, 30...Second die, 31...Support block, 35, 36...
Backup plate, 37... Upper holder, 4
0...First drive cam, 44...Second drive cam, 47...Third drive cam.

Claims

[Scope of utility model registration request]

A first die in contact with the first wall of a workpiece having parallel first and second walls is fixed to a base, and burring is performed on the first wall in cooperation with the first die. A punch having a large-diameter machining section for performing machining is fixed to a first slide cam that is horizontally slidably installed on the base, and a movable spacer that contacts the second wall is attached to the second slide cam. A second punch is installed on the base so as to be movable toward and away from the wall, and performs burring on the second wall by cooperating with a small-diameter machining section formed at the tip of the large-diameter machining section of the punch. A second die is provided on a second slide cam installed on the base so as to be slidable in the same direction as the horizontal direction, and a backup putty fitted between the first die and the movable spacer is provided in the horizontal direction. a first drive cam that is installed on the base to be slidable in a horizontal direction perpendicular to the direction and that drives the first slide cam; and a second drive cam that drives the second slide cam; A burring cam type in which a third drive cam for driving the back-up plate is attached to an upper holder provided above the base so as to be movable up and down.