JPH0333012U

JPH0333012U -

Info

Publication number: JPH0333012U
Application number: JP9488089U
Authority: JP
Priority date: 1989-08-11
Filing date: 1989-08-11
Publication date: 1991-04-02

Description

[Brief explanation of drawings]

第１図は本考案の実施例縦断面図、第２図は第
１図の右側面図、第３図は第１図の平面図、第４
図は段なしイゼクターピンの正面図、第５図は段
付きイゼクターピンの正面図、第６図は従来のチ
ヤツクの正面図、第７図は第６図の右側面図であ
る。図において、１……スピンドル、２……コレツ
ト本体、３……コレツトチヤツク、３ａ……傾斜
開口部、４……コレツト、４ａ……傾斜チヤツク
部、５……ピン挿入孔、６……ストツパーピン取
付体、７……ストツパーピン、８……ベアリング
カバー、９……ベアリング、１０……固定ナツト
、１１……クランクアーム、１２……ベアリンダ
、１３……油圧シリンダー、１４……ビストン軸
、１５……支点、１６……被加工イゼクターピン
、１６ａ……頭部、１７……チヤツク本体、１８
……チヤツク体、１９……締めつけ穴、を示す。 Fig. 1 is a longitudinal sectional view of an embodiment of the present invention, Fig. 2 is a right side view of Fig. 1, Fig. 3 is a plan view of Fig. 1, and Fig. 4 is a plan view of Fig. 1.
5 is a front view of a stepped ejector pin, FIG. 6 is a front view of a conventional chuck, and FIG. 7 is a right side view of FIG. 6. In the figure, 1... Spindle, 2... Collet main body, 3... Collet chuck, 3a... Inclined opening, 4... Collet, 4a... Inclined chuck portion, 5... Pin insertion hole, 6... Stopper pin installation. Body, 7...Stopper pin, 8...Bearing cover, 9...Bearing, 10...Fixing nut, 11...Crank arm, 12...Bear cylinder, 13...Hydraulic cylinder, 14...Viston shaft, 15... Fulcrum, 16...Ejector pin to be processed, 16a...Head, 17...Chuck body, 18
...Chick font, 19... indicates tightening hole.

Claims

[Scope of utility model registration request]

A bottomed cylindrical collet main body 2 connected to a rotating spindle 1 has a collet chuck 3 slidably fitted on its outer circumferential side, which has an inclined opening 3a whose inner circumference widens in the distal direction. , on the inner circumferential side, an inclined chuck part 4a whose outer circumference expands in the distal direction and comes into contact with the inclined opening 3a, and which is divided into three parts so as to be openable and closable and has a pin insertion hole 5 in the center of the distal end surface is provided at the distal end. The other end of the stopper pin 7, whose tip is inserted into the pin insertion hole 5 on the end face of the collet 4, is screwed into the center of the bottom of the collet main body 2. One end of the stopper pin mounting body 6 protruding inward is screwed onto the outer periphery of the collector chuck 3, and the bearing 9 is fixed in position by screwing a fixing nut 10.
This chuck device for an ejector pin processing machine is made up of a bearing cover 8 fitted with a bearing cover 8 and a distal end of a crank arm 11 which is brought into contact with this bearing 9 and moved in the axial direction to slide a collect chuck 3.