JPS627352U

JPS627352U -

Info

Publication number: JPS627352U
Application number: JP9439885U
Authority: JP
Priority date: 1985-06-24
Filing date: 1985-06-24
Publication date: 1987-01-17
Also published as: JPH0314282Y2

Description

[Brief explanation of the drawing]

図面はいずれも本考案の実施例を示すものであ
り、第１図は全体縦断面図、第２図は検出機構部
の拡大正面図、第３図は同側面図、第４図は通常
動作時における動作説明図、第５図はオーバース
トローク時における動作説明図、第６図は検出回
路部を含む全体構成図である。〔符号の説明〕１０……位置検出装置、２０…
…本体、３０……操作部、３１……摺動体、３２
……ストツパー、３３……バネ、３４……ピスト
ン（操作杆）３４ａ……ストツパー部、３５……
バネ、３６……接触板、４０……検出機構部、４
１……固定板、４５，４６……鋼球、４８……支
軸、４９……ねじりコイルバネ、５０……検出回
路部、Ｓ_１……第１の接点、Ｓ_２……第２の接点
、Ｔ……工具。 The drawings all show embodiments of the present invention: Fig. 1 is an overall vertical sectional view, Fig. 2 is an enlarged front view of the detection mechanism, Fig. 3 is a side view of the same, and Fig. 4 shows normal operation. FIG. 5 is an explanatory diagram of the operation during overstroke, and FIG. 6 is an overall configuration diagram including the detection circuit section. [Explanation of symbols] 10... position detection device, 20...
...Body, 30...Operation unit, 31...Sliding body, 32
...Stopper, 33...Spring, 34...Piston (operating rod) 34a...Stopper part, 35...
Spring, 36... Contact plate, 40... Detection mechanism section, 4
DESCRIPTION OF SYMBOLS 1... Fixed plate, 45, 46... Steel ball, 48... Support shaft, 49... Torsion coil spring, 50... Detection circuit section, S ₁ ... First contact, S ₂ ... Second contact , T...tool.

Claims

[Claims for Utility Model Registration] (1) A main body installed on a base of a machine tool, etc. has an operating rod connected to one end thereof, and the other end protrudes from the main body at a predetermined height. an operating section that receives pressure from a tool tip, etc., is slidably mounted in a spring-supported manner so as to resist the pressure;
In the main body, there is a detection mechanism that engages with the operating rod to open and close contacts to detect the position of the tool tip, etc.;
The position detection device is provided with a detection circuit unit that extracts the opening and closing of the contact as an electric signal, and the detection mechanism unit includes a fixed first contact, one end of which is pivotally supported, and the other end of which is pivotably supported. A swinging lever is provided with a second contact pairing with the first contact on the end side and disposed orthogonally to the operating rod, the swinging lever having the second contact connected to the first contact. It is configured to be biased by a spring means so as to come into contact with a contact and close the contact, and to open the contact by the pressure of an operating rod when the operating portion is pressed by a tip of a tool, etc. The point of action of the swinging lever that intersects with is set midway between the pivoted one end side and the other end side where the second contact point is provided,
A position detection device characterized in that responsiveness of opening and closing operations of each of the contacts is improved. (2) One end side of the swing lever is pivotally supported by a support shaft wrapped with a torsion coil spring, and the support shaft is supported by a plurality of rigid balls in a point contact state. The position detection device described in Section 1. (3) The operating rod is a piston that is slidably fitted and assembled to the operating section, and the piston is moved toward the swing lever side by a spring means interposed between the operating section and the operating section. The piston is urged to move in conjunction with the operating section, and the piston is provided with a stopper that engages with a portion of the main body when excessive pressure is applied from the tip of the tool, etc., to reduce the pressing force between the operating section and the piston. The position detection device according to claim (1) or (2), wherein the position detection device is absorbed by: