JPS5875663U

JPS5875663U - Crankshaft holding chuck

Info

Publication number: JPS5875663U
Application number: JP1981167630U
Authority: JP
Inventors: 各務　一三; 健太田
Original assignee: 豊田工機株式会社
Priority date: 1981-11-12
Filing date: 1981-11-12
Publication date: 1983-05-21
Also published as: JPS6212538Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案にかかるクラン−り軸保持用チャックの
一例番示す断面図、第２図は第１図のｎ−■線に沿う断
面図、第３図は第２図の■−■線に沿う断面図、第４図
は本考案における割出板と位置決めピンとの関係を示す
説明図である。１・・・・・・主軸ヘッド、２・・・・・・主軸、４・
・・・・・スライド体、５・・・・・・案内部材、６・
・・・・・クランク軸、６ａ・・・・・・クランクピン
、６ｂ・・・・・・ジャーナル部、７・・・・・・固定
部材、８・・・・・・チャック本体、１０・・・・・・
支持金、１２・・・・・・クランプアーム、１４・・・
・・・クランプシリンダ、１６・・・・・・割出板、１
７・・・・・・割出軸、２０・・・・・・ピン支持板、
２１・・・・・・基準ピン、２３・・・・・・シフタ、
２７・・・・・・シフタシリンダ、２８・・・・・・ス
プライン軸、２９・・・・・・自在継手、３１・・・・
・・駆動軸、３２・・・・・・位置決めピン、３４・・
・・・・スプリング、３５・・・・・・ねじ軸、３６・
・・・・・ねじ穴、３７・・・・・・ナツトランナ、３
９・・・・・・スペーサ、４０・・・・・・スペーサ切
替シリンダ。Fig. 1 is a cross-sectional view showing an example of a chuck for holding a crank shaft according to the present invention, Fig. 2 is a cross-sectional view taken along the line n--■ in Fig. 1, and Fig. 3 is a cross-sectional view taken along line n--■ in Fig. 2. FIG. 4, a sectional view taken along the line, is an explanatory view showing the relationship between the index plate and the positioning pin in the present invention. 1...Spindle head, 2...Spindle, 4.
...Slide body, 5...Guide member, 6.
... Crank shaft, 6a ... Crank pin, 6b ... Journal part, 7 ... Fixing member, 8 ... Chuck body, 10.・・・・・・
Support metal, 12... Clamp arm, 14...
... Clamp cylinder, 16 ... Index plate, 1
7... Index shaft, 20... Pin support plate,
21...Reference pin, 23...Shifter,
27...Shifter cylinder, 28...Spline shaft, 29...Universal joint, 31...
...Drive shaft, 32...Positioning pin, 34...
... Spring, 35 ... Screw shaft, 36.
...Screw hole, 37...Nut runner, 3
9... Spacer, 40... Spacer switching cylinder.

Claims

[Scope of utility model registration request]

A slide body is attached to the front end surface of the spindle of the spindle head so as to be slidable in the eccentric direction of the crank pin, a chuck body is integrally fixed to the slide body, and a chuck body is provided on the chuck body eccentrically from the axis of the spindle. A support metal for supporting the journal portion, a phase indexing mechanism provided on the chuck body in alignment with the axis of the support metal and automatically phase-indexing the pin portion of the crankshaft, and a phase indexing mechanism for automatically determining the phase of the pin portion of the crankshaft; An indexing drive source is connected to the indexing shaft via a universal joint and provided on the spindle head side, and the indexing drive source is rotatably supported by a fixed member fixed to the main spindle, and is slidable on the slide body. a screw shaft that is screwed together from a direction that coincides with the direction of motion and adjusts the position of the chuck body with respect to the spindle axis; a nut runner that is disposed to be removable from the screw shaft and that rotates the screw shaft; and a nut runner that rotates the screw shaft. a spacer that is shiftably interposed between the sliding body and the fixing member on the mating side and that changes the eccentricity of the journal support center relative to the spindle rotation center in multiple stages according to the eccentricity of the crank pin; and a spacer that is provided on the chuck body. A crankshaft holding chuck comprising a spacer switching device for operating the spacer.