JPS58162821A - Thermal displacement meter - Google Patents

Thermal displacement meter

Info

Publication number
JPS58162821A
JPS58162821A JP4593182A JP4593182A JPS58162821A JP S58162821 A JPS58162821 A JP S58162821A JP 4593182 A JP4593182 A JP 4593182A JP 4593182 A JP4593182 A JP 4593182A JP S58162821 A JPS58162821 A JP S58162821A
Authority
JP
Japan
Prior art keywords
thermal displacement
displacement meter
lens
holes
thermal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4593182A
Other languages
Japanese (ja)
Inventor
Masahiro Nomura
政博 野村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP4593182A priority Critical patent/JPS58162821A/en
Publication of JPS58162821A publication Critical patent/JPS58162821A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/48—Measuring temperature based on the expansion or contraction of a material the material being a solid
    • G01K5/50—Measuring temperature based on the expansion or contraction of a material the material being a solid arranged for free expansion or contraction

Abstract

PURPOSE:To obtain a thermal displacement meter which is small in size and is convenient by reading the deformation of a metal by the effect of thermal expansion with a lens. CONSTITUTION:A pair of holes 2, 2' having a laterally symmetrical triangular shape are blanked in a thin metallic sheet 1 having a large coefft. of thermal expansion, and further the holes 2, 2' are so blanked that part of the bottom side parts thereof connect to each other, thereby forming a notched part 3. A lens 5 is mounted on the plate surface of the sheet 1. Such thermal displacement meter is mounted to a structure, and the movement of indicator parts 7, 7' becoming closer to each other by the effect of elastic strains generated by heat is magnified and read with the lens 5, whereby temp. is known.

Description

【発明の詳細な説明】 本発明は、例えば工作機械の主軸ヘッド等の熱変位なｗ
４察し、機械の安定状態を簡奉に目視チェックするのに
用いて有用な熱変位針に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to the thermal displacement of, for example, the spindle head of a machine tool.
4. The present invention relates to a thermal displacement needle useful for simple visual checking of the stable state of machinery.

従来は、熱！＃張（二よる金属の変位量を一定する為に
、歪ゲージ、増幅器インジケータ等を使用し、歪ゲージ
の変化による電気抵抗の変化をとらえ、電気的に増幅し
て指示値を読み取ることが考えられていた。しかしこの
ような方法は、（イ）一般的に高価である、（ロ）いき
おい精密な一定用ということで現場サイドの簡便な要求
になかなかこたえられない、さらに（ハ）持ち運び、取
扱いに不便である、などの欠点があった。Traditionally, heat! In order to keep the amount of displacement of the metal constant, it is possible to use a strain gauge, amplifier indicator, etc. to capture the change in electrical resistance due to the change in the strain gauge, electrically amplify it, and read the indicated value. However, such methods are (1) generally expensive, (2) difficult to meet the demands of convenience on site because they require very precise constant use, and (3) difficult to carry. It had drawbacks such as being inconvenient to handle.

本発明は、以上の欠点をなくすべくなされたものであっ
て、熱膨張による金属の弾性歪を利用した小形、ＩＩｋ
電で簡便な熱変位計を提供することを目的とする。The present invention has been made to eliminate the above-mentioned drawbacks, and is a compact, IIk
The purpose is to provide a simple thermal displacement meter using electricity.

以上、本９Ｂ明を、図面を疹照しながら、実施例につい
て説明する。The embodiments of Book 9B will be described above with reference to the drawings.

第１図は本発明に係る熱変位針の正面図、′ｓ４２図は
その１Ｉｉｌ１面図である。この図において、熱膨張係
数の大きな金ｌＩ４！ｉＩ！薄板ｌに一対の左右対称な
三角形状の穴（三角形穴）２．２’を、その底辺部が互
いに対向するように打ち抜き、さらに前記各穴２．２の
底辺部の一部が互いにつながるように打ち抜いて底辺部
に切欠ｓ３を形成しである。また金属製薄板ｌの板面の
上にレンズ取付板４を介して凸レンズ５を組み込んであ
る。６は熱変位計を測定箇所に原り付けるための穴であ
る。第３ｓは熱変位計の読み取り部分の拡大図である。FIG. 1 is a front view of a thermal displacement needle according to the present invention, and FIG. 42 is a top view thereof. In this figure, gold lI4! has a large coefficient of thermal expansion! iI! A pair of bilaterally symmetrical triangular holes (triangular holes) 2.2' are punched out in the thin plate l so that their bases face each other, and further, a portion of the bases of the holes 2.2 are connected to each other. It is punched out to form a notch s3 at the bottom. Further, a convex lens 5 is installed on the surface of the thin metal plate 1 via a lens mounting plate 4. 6 is a hole for attaching the thermal displacement meter to the measurement location. 3s is an enlarged view of the reading part of the thermal displacement meter.

第３図において、熱変位針が取付けられた構造物が熱を
帯びると、熱変位針に熱による弾性歪が生じそれを打ち
抜き部中央のインジケータ部７．７′が増幅し互いに接
近し合う。それを更に凸レンズ５により拡大し、レンズ
にきざまれている目盛により、変位量、温度を読み取る
事ができる。ｉＪＡ図は工作機械の主軸電動機９の近傍
に本発明の熱変位計８を取付け、謳琥Ｅ昇による変位の
安定状態をチェックしている状態を示したものである。In FIG. 3, when the structure to which the thermal displacement needles are attached becomes heated, the thermal displacement needles undergo elastic strain due to the heat, which is amplified by the indicator portions 7 and 7' at the center of the punched portion, causing them to approach each other. It is further magnified by a convex lens 5, and the amount of displacement and temperature can be read from the scale marked on the lens. The iJA diagram shows a state in which the thermal displacement meter 8 of the present invention is installed near the spindle motor 9 of a machine tool, and the stable state of displacement due to E-lifting is being checked.

この熱作業者の勘にたよっていたならし運転を観察でき
るようになる。又、あらゆる機械の任意の部分に於ける
熱変位を測定できるので、大型機械の熱変位解析用のデ
ータ収集が容易にできる。更にインジケータの部分７．
７′を切り離すことなくノツチ（切り込み）の状態にし
、例えばプレス機械のようにたえず衝撃的な振動荷電を
受ける部分に取付けて亀裂が進行し破断に至った時を検
出することにより構造物の疲労破壊に至る傾向予測の一
種のゲージとして使用することも可能である。It is now possible to observe the break-in operation, which previously relied on the intuition of the hot worker. Furthermore, since thermal displacement in any part of any machine can be measured, data for thermal displacement analysis of large machines can be easily collected. Furthermore, the indicator portion 7.
7' is left in a notched state without being separated, and it is attached to a part that is constantly subjected to shock vibration charging, such as a press machine, to detect when a crack has progressed to the point of rupture, thereby reducing the fatigue of the structure. It can also be used as a kind of gauge for predicting the tendency towards failure.

【図面の簡単な説明】[Brief explanation of the drawing]

ＩＩ１図は本発明に係る熱変位針の正面図、第２■は＊
１ｖ！４のｉ＋ｉｉｉ図、第３図は熱変位針の読み取り
部分の拡大図、１１４図は本発明に係る熱変位針を取り
付けた工作機械の主軸電動機近傍を示した図である。 ｌ・・・金員製薄板、２．２′−・三角形穴、３・・・
切欠部、５・−・凸レンズ、 ７．７・−インジケータ部。 代理人　弁理士　染　川　利　吉 第１図 第３図 第４図Figure II1 is a front view of the thermal displacement needle according to the present invention, and Figure II1 is *
1v! Figure 4 i+iii and Figure 3 are enlarged views of the reading portion of the thermal displacement needle, and Figure 114 is a diagram showing the vicinity of the spindle motor of the machine tool to which the thermal displacement needle according to the present invention is attached. l...Thin metal plate, 2.2'-triangular hole, 3...
Notch, 5.--Convex lens, 7.7.--Indicator section. Agent Patent Attorney Toshiyoshi SomekawaFigure 1Figure 3Figure 4

Claims (1)

【特許請求の範囲】[Claims] ｉＩｌ＆膨張係数の大きな金属製薄板に一対の左右対称
な三角形状の穴を、その底辺部が互いに対向するように
打ち抜き、さらに前記各穴の底辺部の一部が互いにつな
がるように切り欠き、前記金Ｊｌｌｉｌ博板上に前記底
辺部が拡大して見える凸レンズを取付け、前記金属製薄
板の熱変形シーよる前記底辺部の切欠部の間隔変化を絖
み取るようにしたことを特徴とする熱変位針。A pair of symmetrical triangular holes are punched out in a metal thin plate having a large coefficient of expansion so that their bases face each other, and further, a portion of the bottoms of the holes are cut out so that they are connected to each other. Thermal displacement characterized in that a convex lens is mounted on the gold plate to make the base part appear enlarged, and a change in the interval between the notches in the base part due to thermal deformation of the thin metal plate is compensated for. needle.
JP4593182A 1982-03-23 1982-03-23 Thermal displacement meter Pending JPS58162821A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4593182A JPS58162821A (en) 1982-03-23 1982-03-23 Thermal displacement meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4593182A JPS58162821A (en) 1982-03-23 1982-03-23 Thermal displacement meter

Publications (1)

Publication Number Publication Date
JPS58162821A true JPS58162821A (en) 1983-09-27

Family

ID=12733004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4593182A Pending JPS58162821A (en) 1982-03-23 1982-03-23 Thermal displacement meter

Country Status (1)

Country Link
JP (1) JPS58162821A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5970223A (en) * 1998-01-08 1999-10-19 Xerox Corporation Job interrupt system for multifunctional printing system
US5970224A (en) * 1997-04-14 1999-10-19 Xerox Corporation Multifunctional printing system with queue management
US6252681B1 (en) 1997-04-14 2001-06-26 Xerox Corporation Multifunctional printing system with queue management
US6939036B2 (en) * 2003-11-04 2005-09-06 Certainteed Corporation Temperature-expansion indicator for siding panels

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5970224A (en) * 1997-04-14 1999-10-19 Xerox Corporation Multifunctional printing system with queue management
US6252681B1 (en) 1997-04-14 2001-06-26 Xerox Corporation Multifunctional printing system with queue management
US5970223A (en) * 1998-01-08 1999-10-19 Xerox Corporation Job interrupt system for multifunctional printing system
US6939036B2 (en) * 2003-11-04 2005-09-06 Certainteed Corporation Temperature-expansion indicator for siding panels
US7591584B2 (en) 2003-11-04 2009-09-22 Cerainteed Corporation Temperature-expansion indicator for siding panels

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