JPS5992805U

JPS5992805U - Detection circuit for contact detector

Info

Publication number: JPS5992805U
Application number: JP18932982U
Authority: JP
Inventors: 樋山　喜一; 秀夫藤井
Original assignee: 安藤電気株式会社
Priority date: 1982-12-15
Filing date: 1982-12-15
Publication date: 1984-06-23

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は接触検出器の構成例、第２図は第１図の変位・
光量変換部３の構成例、第３図は第２図の移動体３Ｄと
光ファイバ６Ａの関係図、第４図は第３図の移動体３Ｄ
の変位と光ファイバ６Ａの関係図、第５図はこの考案に
よる実施例の回路図。１・・・・・・工具交換部、２・・・・・・接触棒、２
Ａ・・・・・・先端、２Ｂ・・・・・・他端、３・・・
・・・変位・光量変換部、３Ａ・・・・・・球、３Ｂ・
・・・・・スライド軸、３Ｃ・・・・・・板バネ、３Ｄ
・・・・・・移動体、３Ｅ・・・・・・スプリング、３
１・・・・・・反射面、３２・・・・・・照明面、３３
・・・・・・反射有効面、４・・・・・・発光素子、５
・・・・・・受光素子、６Ａ・・・・・・光ファイバ、
６Ｂ・・・・・・光ファイバ、７・・・・・・検出回路
、７０・・・・・・ピークホールド回路、７１・・・・
・・放電用スイッチ、７２・・・・・・充電用スイッチ
、７３・・・・・・コンデンサ、７４・・・・・・比較
回路、７５・・・・・・出力端子。第３図Figure 1 shows an example of the configuration of a contact detector, and Figure 2 shows the displacement and
A configuration example of the light amount converter 3, FIG. 3 is a relationship diagram between the moving body 3D in FIG. 2 and the optical fiber 6A, and FIG. 4 shows the moving body 3D in FIG. 3.
FIG. 5 is a diagram showing the relationship between the displacement of the optical fiber 6A and the optical fiber 6A, and FIG. 1...Tool exchange part, 2...Contact rod, 2
A...Tip, 2B...Other end, 3...
... Displacement/light amount conversion section, 3A... Ball, 3B.
...Slide axis, 3C...Plate spring, 3D
・・・・・・Moving body, 3E・・・Spring, 3
1...Reflection surface, 32...Illumination surface, 33
...Reflection effective surface, 4... Light emitting element, 5
......Photodetector, 6A...Optical fiber,
6B... Optical fiber, 7... Detection circuit, 70... Peak hold circuit, 71...
...Discharge switch, 72...Charging switch, 73...Capacitor, 74...Comparison circuit, 75...Output terminal. Figure 3

Claims

[Scope of Claim for Utility Model Registration] A displacement/light amount converter 3 that is attached to and detached from the tool changing section 1 of a machine tool and converts the displacement of the built-in contact rod 2 into a change in light amount when the built-in contact rod 2 contacts an article. , has a light emitting element 4 that sends detection light to the displacement/light amount converter 3, and a light receiving element 5 that receives the detection signal converted into light. In the contact detector, which is connected by an optical fiber 6, there is a peak hold circuit 70 that holds the initial input of the detection level of the light receiving element 5, and a detection of the light receiving element 5 based on the output of the peak hold circuit 70 and the displacement of the contact rod 2. The comparison circuit 74 receives the level as input, and discharges the peak hold circuit 70 when the contact rod 2 is not in contact with the article, and charges the peak hold circuit 70 with the detection level of the light receiving element 5 at this time. , the comparison circuit 74 uses the detection level of the light receiving element 5 when the contact rod 2 contacts the article.
A contact detector detection circuit characterized in that it operates.