JPH0712909U - Male thread effective diameter measuring instrument - Google Patents
Male thread effective diameter measuring instrumentInfo
- Publication number
- JPH0712909U JPH0712909U JP4040893U JP4040893U JPH0712909U JP H0712909 U JPH0712909 U JP H0712909U JP 4040893 U JP4040893 U JP 4040893U JP 4040893 U JP4040893 U JP 4040893U JP H0712909 U JPH0712909 U JP H0712909U
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- Prior art keywords
- effective diameter
- needle
- screw
- rotating member
- male screw
- 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.)
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
(57)【要約】
【目的】 本考案はおねじの有効径測定器に関し、容易
におねじの有効径が測定できるおねじの有効径測定器が
実現を目的とする。
【構成】 基準となるおねじに押し当てた時に相互に平
行になる面８、９を有する第一回転部材１と第二回転部
材２と、第一回転部材１と第二回転部材２を回転させ所
定位置で間隔が狭くなる方向に所定圧力を与える回転機
構３と、測定するねじの溝形状に応じた直径を有し平行
になる面８に沿って所定範囲内で回転及び移動可能に保
持された少なくとも１本の第一針状部材４と、測定する
ねじの溝形状に応じた直径を有し平行になる面９に沿っ
て所定範囲内で回転及び移動可能に保持された少なくと
も１本の第二針状部材５とを備え、第一及び第二針状部
材４、５をねじ溝に所定圧力で押し当てた時の回転機構
３の回転位置の、基準となるおねじに押し当てた時の回
転位置との差を検出するように構成する。
(57) [Summary] [Object] The present invention relates to an effective diameter measuring instrument for a male thread, and an object thereof is to realize an effective diameter measuring instrument for a male thread which can easily measure the effective diameter of the screw. [Structure] A first rotating member 1 and a second rotating member 2 having surfaces 8 and 9 which are parallel to each other when pressed against a male screw serving as a reference, and a first rotating member 1 and a second rotating member 2 are rotated. And a rotation mechanism 3 that applies a predetermined pressure in a direction in which the gap is narrowed at a predetermined position, and a rotatably and movably held within a predetermined range along a parallel surface 8 having a diameter corresponding to the groove shape of the screw to be measured At least one first needle-shaped member 4 and at least one that is rotatably and movably held within a predetermined range along a parallel surface 9 having a diameter corresponding to the groove shape of the screw to be measured. And the second needle-shaped member 5 of No. 2, and is pressed against the male screw serving as a reference of the rotational position of the rotation mechanism 3 when the first and second needle-shaped members 4 and 5 are pressed against the thread grooves with a predetermined pressure. It is configured to detect the difference from the rotational position at the time of opening.
Description
【０００１】[0001]
本考案は、おねじの有効径測定器に関し、特にこのおねじの有効径測定器を利 用したおねじの有効径自動測定装置とおねじの加工装置に関する。 The present invention relates to a male thread effective diameter measuring device, and more particularly to an automatic male thread effective diameter measuring device and a male thread machining device using the male thread effective diameter measuring device.
【０００２】[0002]
ねじの加工具合を検査する方法としては、ねじゲージを用いて通り具合を検査 する方法があるが、定量的な評価が行えないという問題がある。ねじの加工状態 を示す値として有効径がある。ねじの有効径は所定の形状のおねじとめねじがね じ合わされた時の接触部分の中心という架空の点を連ねた架空の円筒の直径であ り、直接測定することはできない。おねじの有効径を測定する方法が、ＪＩＳ− Ｂ−Ｏ２６１に定められており、図７はこの規格で定められた測定方法を示す斜 視図である。図示のように、ＪＩＳ規格に規定された測定方法においては、３本 の針状部材１５１、１５２、１５３をねじ溝にはめ、マイクロメータ１２１で３ 本の針状部材を所定の圧力でねじ１００に押し当てた状態でマイクロメータの測 定面の間隔を検出し、針状部材の直径から算出される値を差し引いて有効径を測 定する。針状部材の直径は、ねじの種類及びピッチ等のねじ溝の形状に応じて定 められている。 As a method of inspecting the processing condition of the screw, there is a method of inspecting the passing condition using a screw gauge, but there is a problem that quantitative evaluation cannot be performed. The effective diameter is a value that indicates the processing state of the screw. The effective diameter of a screw is the diameter of an imaginary cylinder that connects imaginary points at the center of the contact part when a male thread and a female thread of a prescribed shape are screwed together, and cannot be measured directly. The method for measuring the effective diameter of the male screw is defined in JIS-B-O261, and FIG. 7 is a perspective view showing the measuring method defined in this standard. As shown in the figure, in the measuring method defined in JIS, three needle-shaped members 151, 152, 153 are fitted in thread grooves, and the three needle-shaped members are screwed with a micrometer 121 at a predetermined pressure. The distance between the measurement surfaces of the micrometer is detected while it is pressed against, and the effective diameter is measured by subtracting the value calculated from the diameter of the needle-shaped member. The diameter of the needle-shaped member is determined according to the shape of the thread groove such as the type of thread and pitch.
【０００３】[0003]
図からも明らかなように、この方法では３本の針状部材を保持した上でマイク ロメータを操作する必要があり、この方法でおねじの有効径を測定するにはかな りの熟練を要し、測定作業が煩雑であるという問題がある。このような作業を改 善するために、図７に示すように針状部材１５１、１５２、１５３に鎖１５４を 繋げ、この鎖１５４を保持してねじ溝にはめるようにすることも行われているが 、十分に改善された作業にはなっていないのが現状である。 As is clear from the figure, this method requires three needle-shaped members to be held before operating the micrometer, and it requires considerable skill to measure the effective diameter of the male thread with this method. However, there is a problem that the measurement work is complicated. In order to improve such work, a chain 154 is connected to the needle-shaped members 151, 152, 153 as shown in FIG. 7, and the chain 154 is held and fitted in the thread groove. However, the current situation is that the work has not been sufficiently improved.
【０００４】 また加工中の加工刃の磨耗や変形等の変動要因により加工されるねじの加工精 度が低下することもあるが、この精度低下を低減するには加工中に随時ねじの形 状、すなわち有効径を測定して加工制御にフィードバックする必要がある。しか し、図７に示された方法では、作業者が３本の針状部材を保持した上でマイクロ メータを操作して値を読み取り、加工を制御する制御装置に読み取った値又は換 算して得た有効径を入力する必要があり、ねじ加工の自動化ができないという問 題があった。[0004] Furthermore, the machining accuracy of a thread to be machined may be reduced due to fluctuation factors such as wear and deformation of the machining blade during machining. That is, it is necessary to measure the effective diameter and feed it back to the machining control. However, in the method shown in FIG. 7, the operator holds the three needle-shaped members and then operates the micrometer to read the value, and the read value or the calculated value is read by the controller that controls the machining. There was a problem that it was necessary to enter the effective diameter obtained from the above, and it was not possible to automate thread processing.
【０００５】 本考案は上記問題点に鑑みてなされたものであり、容易におねじの有効径が測 定できるおねじの有効径測定器の実現、及びそのおねじの有効径測定器を利用し ておねじの有効径測定が自動的に行えるおねじの有効径自動測定装置と高精度の おねじ加工が自動的に行えるおねじの加工装置の実現を目的とする。The present invention has been made in view of the above problems, and realizes an effective diameter measuring device for a male screw that can easily measure the effective diameter of a screw, and uses the effective diameter measuring device for the male screw. The objective is to realize an automatic thread effective diameter measuring device that can automatically measure the effective diameter of a screw and a male thread processing device that can automatically perform highly accurate external thread machining.
【０００６】[0006]
図１は本考案のおねじの有効径測定器の基本構成を示す図である。 図示のように、本考案のおねじの有効径測定器は、基準となるおねじに押し当 てた時に、相互に平行になる面８、９を有する第一回転部材１と第二回転部材２ と、第一回転部材１と第二回転部材２を、平行になる面８、９の間隔が変化する 方向に回転させると共に所定位置で間隔が狭くなる方向に所定圧力を与える回転 機構３と、測定するねじの溝形状に応じた直径を有し、第一回転部材１側の平行 になる面８に沿って所定範囲内で回転及び移動可能に保持された少なくとも１本 の第一針状部材４と、測定するねじの溝形状に応じた直径を有し、第二回転部材 ２側の前記平行になる面９に沿って所定範囲内で回転及び移動可能に保持された 少なくとも１本の第二針状部材５とを備え、第一及び第二針状部材４、５が測定 するおねじのねじ溝に所定圧力で押し当てられた時の回転機構３の回転位置の、 基準となるおねじに押し当てた時の回転位置との差を検出することで有効径を測 定することを特徴とする。 FIG. 1 is a diagram showing the basic construction of an effective diameter measuring device for a screw according to the present invention. As shown in the figure, the effective diameter measuring device for a screw according to the present invention comprises a first rotating member 1 and a second rotating member having surfaces 8 and 9 which are parallel to each other when pressed against a reference male screw. 2 and a rotating mechanism 3 that rotates the first rotating member 1 and the second rotating member 2 in a direction in which the distance between the parallel surfaces 8 and 9 changes and applies a predetermined pressure in a direction in which the distance decreases at a predetermined position. , At least one first needle shape having a diameter corresponding to the groove shape of the screw to be measured and held so as to be rotatable and movable within a predetermined range along the parallel surface 8 on the first rotating member 1 side. At least one member 4 having a diameter corresponding to the groove shape of the screw to be measured and rotatably and movably held within a predetermined range along the parallel surface 9 on the second rotating member 2 side. A male thread having a second needle-shaped member 5 and measured by the first and second needle-shaped members 4, 5. The effective diameter is measured by detecting the difference between the rotational position of the rotating mechanism 3 when it is pressed against the groove with a predetermined pressure and the rotational position when it is pressed against the reference male screw. To do.
【０００７】[0007]
図２は本考案の原理説明図であり、ＪＩＳ−Ｂ−Ｏ２６１に定められているお ねじの有効径測定方法で針状部材をねじの溝に押し付けた時の状態を示している 。押し付けられた状態では、針状部材は押し付けの圧力により溝と平行な面８又 は９の間に保持される。この時、針状部材は実際には溝の方向に沿って斜めにな るが、図では省略してある。両側の針状部材と溝との接触部分の間隔が有効径に 相当する。針状部材の直径は測定する溝の形状に応じて定められており、平行な 面８と９の間隔から針状部材の直径に対応して定められる値を差し引けば有効径 が得られる。 FIG. 2 is a diagram for explaining the principle of the present invention and shows a state in which a needle-shaped member is pressed into a groove of a screw by the method for measuring the effective diameter of a male screw defined in JIS-B-O261. In the pressed state, the needle-shaped member is held between the surfaces 8 or 9 parallel to the groove by the pressing pressure. At this time, the needle-shaped member is actually inclined along the direction of the groove, but it is omitted in the figure. The distance between the contact portions of the needle-shaped members on both sides and the groove corresponds to the effective diameter. The diameter of the needle-shaped member is determined according to the shape of the groove to be measured, and the effective diameter can be obtained by subtracting the value determined corresponding to the diameter of the needle-shaped member from the distance between the parallel surfaces 8 and 9.
【０００８】 測定するおねじは、当然誤差を有し、針状部材もある程度の直径の誤差を有す るため、針状部材を固定していたのでは図２に示すような状態で針状部材と溝と を接触させることはできない。そのため針状部材は溝に倣って自由に移動及び回 転できることが必要であり、これまでは作業者が針状部材を保持した上で溝には まるように調整しながらマイクロメータの測定面を押し付けていた。これに対し て、本考案では、第一針状部材４─１、４─２は第一回転部材１の面９に対して 平行になる面８に沿って所定範囲内で自由に回転及び移動できるように保持され ており、同様に第二針状部材５は第二回転部材２の面８に対して平行になる面９ に沿って所定範囲内で自由に回転及び移動できるように保持されている。従って 、測定するおねじと本考案の測定器を基準となるおねじに押し当てた時に面８と ９が平行になるようにある程度の精度で位置決めした後、回転機構３により第一 回転部材１と第二回転部材２を回転させて面８と９の間隔を狭めていけば、第一 針状部材４─１、４─２及び第二針状部材５は面８と９に沿って回転及び移動し て溝にはまる。しかも回転機構３はばね等を利用した機構によって実現される一 定の圧力で移動させる機能を有するため、図２のような状態が実現される。針状 部材の直径はＪＩＳ−Ｂ−０２７１に定められているものを用い、面８と９の間 隔を検出することにより有効径が得られる。Since the male screw to be measured naturally has an error and the needle-shaped member also has an error of a certain diameter, if the needle-shaped member is fixed, the needle-shaped member has a needle-like shape as shown in FIG. The member and groove cannot be in contact with each other. Therefore, it is necessary for the needle-shaped member to move and rotate freely following the groove, and until now, the operator held the needle-shaped member and adjusted the measurement surface of the micrometer while adjusting it so that it fits in the groove. I was pressing. In contrast, in the present invention, the first needle members 4-1 and 4-2 freely rotate and move within a predetermined range along the surface 8 parallel to the surface 9 of the first rotating member 1. Similarly, the second needle member 5 is held so as to be freely rotatable and movable within a predetermined range along a surface 9 parallel to the surface 8 of the second rotating member 2. ing. Therefore, after the male screw to be measured and the measuring instrument of the present invention are pressed against the male screw serving as a reference, they are positioned with a certain degree of accuracy so that the surfaces 8 and 9 are parallel to each other, and then the first rotating member 1 is rotated by the rotating mechanism 3. And the second rotating member 2 is rotated to reduce the distance between the surfaces 8 and 9, the first needle members 4-1 and 4-2 and the second needle member 5 rotate along the surfaces 8 and 9. And move into the groove. Moreover, since the rotating mechanism 3 has a function of moving at a constant pressure realized by a mechanism using a spring or the like, the state shown in FIG. 2 is realized. The needle-shaped member has a diameter defined in JIS-B-0271, and the effective diameter can be obtained by detecting the distance between the surfaces 8 and 9.
【０００９】 以上のように、本考案の有効径測定器においては、作業者が針状部材を保持す ることなしに測定状態が実現されるため、測定作業は大幅に簡略化され、非熟練 者でも容易に測定できるようになるだけでなく、測定作業に要する時間も大幅に 短縮される。 なおＪＩＳ−Ｂ−Ｏ２６１によれば、針状部材は一方が２本、もう一方が１本 であるが、本願考案の測定器においては、おねじの軸心に対する面８と９の平行 度をあらかじめ平行調整機構により調整し固定しておくので、針状部材は１本づ つでも測定精度が低下することはない。As described above, in the effective diameter measuring instrument of the present invention, the measurement state is realized without the need for the operator to hold the needle-shaped member, so the measurement work is greatly simplified and unskilled. Not only can a person easily perform the measurement, but the time required for the measurement work can be significantly reduced. According to JIS-B-O261, one needle member is two, and the other one is one. However, in the measuring device of the present invention, the parallelism of the surfaces 8 and 9 with respect to the axial center of the male screw is set. Since it is adjusted and fixed in advance by the parallel adjustment mechanism, the accuracy of measurement does not deteriorate even if only one needle member is used.
【００１０】[0010]
本考案により、おねじの自動測定機を実現した実施例について説明する。 図３は本考案の実施例の構成を示す図である。 図３において、参照番号１００は測定されるおねじである。１１と１２が第一 回転部材と第一針状部材の部分に相当し、２１と２２が第二回転部材と第二針状 部材の部分に相当する。回転機構は、以下のような部分を有している。３０は回 転機構を保持する筐体である。６は回転機構によって回転する第一回転基体であ り、第一回転部材が取り付けられる。７は回転機構によって回転する第二回転基 体であり、第二回転部材が取り付けられる。３１─１と３１─２は第一回転基体 ６と第二回転基体７の回転軸であり、第一回転基体６と第二回転基体７はこの軸 を中心として回転自在に保持されている。３２─１と３２─２は第一回転基体６ と第二回転基体７を付勢するばねであり、これにより第一回転基体６と第二回転 基体７は間隔が狭くなる方向に回転するように付勢される。３４─１と３４─２ は第一回転基体６と第二回転基体７に設けられた一部が球状の部材であり、先端 の断面が鋭角の三角形である棒状部材３５と接触する。棒状部材３５を軸方向に 移動させることにより球状部材３４─１、３４─２と棒状部材３５の先端部との 接触位置が変化し、第一回転基体６と第二回転基体７の先端部を開閉させること ができる。３８─１と３８─２は差動トランスであり、第一回転基体６と第二回 転基体７に取り付けられた鉄芯の位置変化を電気信号として出力する。従って、 第一回転基体６と第二回転基体７の回転位置の変化が検出できる。第一回転基体 ６と第二回転基体７には第一回転部材１と第二回転部材２がおねじの径の大小に よってその取付位置を調節固定できるように取り付けられる。 An embodiment in which an automatic measuring machine for male threads is realized by the present invention will be described. FIG. 3 is a diagram showing the configuration of an embodiment of the present invention. In FIG. 3, reference numeral 100 is a male screw to be measured. Reference numerals 11 and 12 correspond to portions of the first rotating member and the first needle-shaped member, and reference numerals 21 and 22 correspond to portions of the second rotating member and the second needle-shaped member. The rotating mechanism has the following parts. Reference numeral 30 is a housing that holds the rotation mechanism. Reference numeral 6 denotes a first rotating base body that is rotated by a rotating mechanism, and has a first rotating member attached thereto. Reference numeral 7 is a second rotating base that is rotated by a rotating mechanism, and has a second rotating member attached thereto. Reference numerals 31-1 and 31-2 are rotation shafts of the first rotary base body 6 and the second rotary base body 7, and the first rotary base body 6 and the second rotary base body 7 are rotatably held around these axes. Reference numerals 32-1 and 32-2 denote springs for urging the first rotary base 6 and the second rotary base 7, which allow the first rotary base 6 and the second rotary base 7 to rotate in the direction in which the gap becomes narrow. Be urged by. 34-1 and 34-2 are spherical members provided on the first rotary base 6 and the second rotary base 7, and are in contact with a rod-like member 35 having a triangular cross section at its tip. By moving the rod-shaped member 35 in the axial direction, the contact position between the spherical members 34-1, 34-2 and the tip of the rod-shaped member 35 is changed, and the tips of the first rotary base 6 and the second rotary base 7 are moved. It can be opened and closed. Numerals 38-1 and 38-2 are differential transformers, which output position changes of the iron cores attached to the first rotating base 6 and the second rotating base 7 as electric signals. Therefore, changes in the rotational positions of the first rotary substrate 6 and the second rotary substrate 7 can be detected. The first rotary member 1 and the second rotary member 2 are attached to the first rotary base 6 and the second rotary base 7 so that their mounting positions can be adjusted and fixed depending on the diameter of the male screw.
【００１１】 第一回転部材１と第二回転部材２は針状部材が保持される面の平行度を調整す る第一平行度調整機構１１と第二平行度調整機構２１を有している。図４は第一 平行度調整機構１１の構成を示す斜視図であり、第二平行度調整機構２１も同一 のものである。図５は第一平行度調整機構１１に取り付けられる第一針状部材４ の保持部材１２を示す図であり、第二針状部材５の保持部材２２も同一のもので ある。第一針状部材４の両側は固定部材１３と１４の切り欠き部１５と１６内に 保持され、切り欠き部１５と１６の高さは第一針状部材４が自由に移動できるよ うな大きさに定められているため、第一針状部材４は保持部材１２の面に沿って 切り欠き部１５と１６で規制される範囲内で自由に移動及び回転可能である。針 状部材４が複数ある場合も同様であり、それに応じて切り欠き部の個数が変わる 。The first rotating member 1 and the second rotating member 2 have a first parallelism adjusting mechanism 11 and a second parallelism adjusting mechanism 21 for adjusting the parallelism of the surface holding the needle-shaped member. . FIG. 4 is a perspective view showing the configuration of the first parallelism adjusting mechanism 11, and the second parallelism adjusting mechanism 21 is also the same. FIG. 5 is a view showing the holding member 12 of the first needle-shaped member 4 attached to the first parallelism adjusting mechanism 11, and the holding member 22 of the second needle-shaped member 5 is also the same. Both sides of the first needle-shaped member 4 are held in the notches 15 and 16 of the fixing members 13 and 14, and the height of the notches 15 and 16 is such that the first needle-shaped member 4 can move freely. Therefore, the first needle-shaped member 4 can freely move and rotate along the surface of the holding member 12 within the range regulated by the notches 15 and 16. The same is true when there are a plurality of needle-shaped members 4, and the number of notches changes accordingly.
【００１２】 各種の針状部材を有する保持部材が用意されており、測定するおねじの形状に 応じて交換される。図４に示すように保持部材は平行度調整機構にねじで固定さ れるため、交換は容易に行える。保持部材は精密に作られているが、若干の誤差 を有する上、取り付けの誤差もあるため、単に交換しただけでは対向する平行面 の間の平行度が十分でない。そこで図４に示すような平行度調整機構で対向する 平行面の平行度を調整する。図４は２軸方向に独立して回転可能な機能と面間隔 を変化させる方向の平行移動が可能な機構である。この機構の詳細な説明は、本 考案と直接関係しないので省略する。調整は針状部材を避けるような形状をした ゲージを対向する平行面で挟んで行う。A holding member having various needle-shaped members is prepared and is exchanged according to the shape of the male screw to be measured. As shown in FIG. 4, since the holding member is fixed to the parallelism adjusting mechanism with a screw, replacement can be easily performed. The holding member is made precisely, but it has some errors and also some mounting errors. Therefore, the parallelism between the parallel surfaces facing each other is not sufficient just by exchanging them. Therefore, the parallelism of parallel surfaces is adjusted by a parallelism adjusting mechanism as shown in FIG. FIG. 4 shows a mechanism capable of rotating independently in two axial directions and a mechanism capable of parallel movement in a direction in which the surface spacing is changed. A detailed description of this mechanism is omitted because it is not directly related to the present invention. The adjustment is performed by sandwiching a gauge with a shape that avoids the needle-shaped member between opposing parallel surfaces.
【００１３】 測定を行う場合には、棒状部材３５を図３の右方向に移動させて第一回転部材 １と第二回転部材２の間隔を広げ、測定するねじのネジ溝が第一針状部材４と第 二針状部材５の位置付近にくるように配置する。次に棒状部材３５を左方向に移 動させて棒状部材３５と球状部材３４─１、３４─２が接触しないようにする。 この状態では、第一回転基体６と第二回転基体７にはばね３２─１、３２─２の 力のみが働くため、第一針状部材４と第二針状部材５はねじのネジ溝にばね３２ ─１、３２─２で規定される圧力で押し当てられる。この状態で差動トランス３ ８─１、３８─２の出力を読み取る。When performing the measurement, the rod-shaped member 35 is moved rightward in FIG. 3 to widen the distance between the first rotating member 1 and the second rotating member 2, and the thread groove of the screw to be measured has the first needle-like shape. The member 4 and the second needle member 5 are arranged so as to come close to the positions thereof. Next, the rod-shaped member 35 is moved to the left so that the rod-shaped member 35 and the spherical members 34-1 and 34-2 do not come into contact with each other. In this state, since only the force of the springs 32-1, 32-2 acts on the first rotary base 6 and the second rotary base 7, the first needle-shaped member 4 and the second needle-shaped member 5 are screw thread grooves. The springs 32-1, 32-2 are pressed against them at a pressure. In this state, the outputs of the differential transformers 3 8-1, 38-2 are read.
【００１４】 測定値は直接有効径が得られることが望ましいため、測定前にマスターとなる おねじを測定し、その時の差動トランス３８─１と３８─２の検出値を基準とし て記憶し、測定時には基準との差を検出して有効径を算出して出力する。又は前 述の針状部材を避けるような形状をしたゲージの幅をＪＩＳ−Ｂ−Ｏ２６１に定 められた方法に基づいて算出された値とし、このゲージを測定した時の値を基準 として比較測定する。例えば０．２５ｍｍピッチのＭ８のおねじを測定する場合 には、直径０．１４４３ｍｍの針状部材を使用し、平行面の間隔は有効径より０ ．２１６３９４ｍｍだけ大きくなるので、検出した平行面の間隔からこの値を差 し引けばよい。Since it is desirable to obtain the effective diameter directly from the measured value, measure the male screw as the master before the measurement, and store it using the detected values of the differential transformers 38-1 and 38-2 at that time as a reference. During measurement, the difference from the reference is detected and the effective diameter is calculated and output. Alternatively, use the width of a gauge shaped to avoid the needle-shaped member described above as the value calculated based on the method specified in JIS-B-O261, and compare with the value when this gauge was measured as a reference. taking measurement. For example, when measuring a male thread of M8 having a pitch of 0.25 mm, a needle-shaped member having a diameter of 0.1443 mm is used, and the distance between parallel surfaces is 0. Since it is increased by 216394 mm, this value should be subtracted from the detected distance between the parallel planes.
【００１５】 おねじの加工では、加工途中での加工用刃物の損傷や磨耗、更には温度変化等 の要因により加工精度が微小量ではあるが影響を受けるが、ボールねじ等の精密 な送り動作を必要とする機構に使用されるおねじの加工では、このような誤差が 問題になる。そのため加工途中でおねじの有効径を測定し、加工制御にフィード バックすることでより精密な加工を可能にすることが考えられる。しかしこれま では加工途中でおねじの有効径を自動的に測定する有効な方法がなかったため、 実際に行うのは難しく、また行う場合には大きなコスト増加があった。しかし上 記の本考案のおねじ有効径自動測定機を使用すれば、このような加工が容易にお こなえるようになる。When machining a male screw, the machining accuracy is affected by factors such as damage and wear of the machining tool during machining, temperature change, etc. Such an error becomes a problem in the machining of the male screw used in the mechanism requiring the. Therefore, it is considered possible to measure the effective diameter of the male thread during machining and feed it back to the machining control to enable more precise machining. However, until this time, there was no effective method to automatically measure the effective diameter of the male thread during machining, so it was difficult to actually carry out, and if it was done, there was a large cost increase. However, by using the above-mentioned automatic screw diameter measuring machine of the present invention, such processing can be easily performed.
【００１６】 図６はおねじ加工機に本考案の有効径を自動的に測定する測定機を使用して、 加工制御にフィードバックしながら加工を行うようにしたおねじ加工機の実施例 のブロック構成図である。 図６において、１００は被加工物であり、１０１は被加工物１００を回転する 部分であり、１０２は被加工物１００を保持するチャックであり、１０３は被加 工物１００の一方を支持する部材である。１０４はねじ加工の刃物であり、１０ ５はその回転機構であり、移動機構を有する。１０６は加工の制御装置である。 １１１は本考案の有効径自動測定機の移動部材の部分であり、１１２は移動機構 である。有効径自動測定機を移動させる移動機構も備わっているがここでは省略 してある。加工中に随時刃物１０４を退避させて、有効径自動測定機を測定位置 に移動させて測定を行い、その測定結果に応じて加工制御装置１０６が加工条件 を変更する。このような動作がすべて自動的に行える。FIG. 6 is a block diagram of an embodiment of the male thread processing machine in which the measuring machine for automatically measuring the effective diameter of the present invention is used for the male thread processing machine to perform the processing while feeding back to the processing control. It is a figure. In FIG. 6, 100 is a work piece, 101 is a part that rotates the work piece 100, 102 is a chuck that holds the work piece 100, and 103 supports one of the work piece 100. It is a member. Reference numeral 104 denotes a thread cutting tool, and 10 5 denotes its rotating mechanism, which has a moving mechanism. Reference numeral 106 is a processing control device. Reference numeral 111 denotes a moving member of the automatic effective diameter measuring machine of the present invention, and 112 denotes a moving mechanism. A moving mechanism for moving the automatic effective diameter measuring machine is also provided, but it is omitted here. During processing, the blade 104 is withdrawn as needed, the effective diameter automatic measuring machine is moved to the measurement position for measurement, and the processing control device 106 changes the processing conditions according to the measurement result. All such operations can be performed automatically.
【００１７】[0017]
本考案により、容易におねじの有効径が測定できるおねじの有効径測定器が実 現され、熟練者でなくても容易におねじの有効径が測定できるようになると共に 、おねじの有効径測定器を利用しておねじの有効径測定が自動的に行えるおねじ の有効径自動測定装置と高精度のおねじ加工が自動的に行えるおねじの加工装置 が実現できる。 According to the present invention, an effective diameter measuring instrument for male threads that can easily measure the effective diameter of the screw has been realized, and even an unskilled person can easily measure the effective diameter of the screw. It is possible to realize an automatic thread effective diameter measuring device that can automatically measure the effective diameter of a screw using an effective diameter measuring device and a male thread processing device that can automatically perform highly accurate male thread machining.
【図１】本考案のおねじの有効径測定器の基本構成を示
す図である。FIG. 1 is a view showing a basic configuration of an effective diameter measuring device for a screw according to the present invention.
【図２】本考案の原理説明図である。FIG. 2 is an explanatory view of the principle of the present invention.
【図３】本考案の実施例の構成を示す図である。FIG. 3 is a diagram showing a configuration of an embodiment of the present invention.
【図４】実施例における平行度調整機構を示す斜視図で
ある。FIG. 4 is a perspective view showing a parallelism adjusting mechanism in the embodiment.
【図５】実施例における針状部材の保持機構を示す図で
ある。FIG. 5 is a diagram showing a needle-like member holding mechanism in the embodiment.
【図６】本考案をねじ加工機に適用した実施例の構成を
示すブロック図である。FIG. 6 is a block diagram showing a configuration of an embodiment in which the present invention is applied to a screw processing machine.
【図７】ＪＩＳ−Ｂ−Ｏ２６１に定められたおねじの有
効径測定方法を示す斜視図である。FIG. 7 is a perspective view showing a method for measuring an effective diameter of a male screw defined in JIS-B-O261.
１…第一回転部材 ２…第二回転部材 ３…回転機構 ４、４─１、４─２…第一針状部材 ５、５─１、５─２…第二針状部材 ６…第一回転基体 ７…第二回転基体 ８、９…平行面 １１…第一平行調節機構 ２１…第二平行調節機構 １００…被測定物 DESCRIPTION OF SYMBOLS 1 ... 1st rotating member 2 ... 2nd rotating member 3 ... Rotation mechanism 4, 4-1 and 4-2 ... 1st needle-shaped member 5, 5-1, 5-1 ... 2nd needle-shaped member 6 ... 1st Rotating substrate 7 ... Second rotating substrate 8, 9 ... Parallel surface 11 ... First parallel adjusting mechanism 21 ... Second parallel adjusting mechanism 100 ... Object to be measured
Claims (5)
面（８、９）を有する第一回転部材（１）と第二回転部
材（２）と、 該第一回転部材（１）と第二回転部材（２）を、前記平
行になる面（８、９）の間隔が変化する方向に回転さ
せ、所定位置で間隔が狭くなる方向に所定圧力を与える
回転機構（３）と、 測定するねじの溝形状に応じた直径を有し、前記第一回
転部材（１）側の前記平行になる面（８）に沿って所定
範囲内で回転及び移動可能に保持された少なくとも１本
の第一針状部材（４）と、 測定するねじの溝形状に応じた直径を有し、前記第二回
転部材（２）側の前記平行になる面（９）に沿って所定
範囲内で回転及び移動可能に保持された少なくとも１本
の第二針状部材（５）とを備え、前記第一及び第二針状
部材（４、５）が測定するおねじのねじ溝に所定圧力で
押し当てられた時の前記回転機構（３）の回転位置の、
基準となるおねじに押し当てた時の回転位置との差を検
出することで有効径を測定することを特徴とするおねじ
の有効径測定器。1. An effective diameter measuring device for a male screw, comprising a first rotating member (1) and a second rotating member (1) having surfaces (8, 9) which are parallel to each other when pressed against a reference male screw. The rotating member (2) and the first rotating member (1) and the second rotating member (2) are rotated in a direction in which the interval between the parallel surfaces (8, 9) changes, and the interval is set at a predetermined position. A rotation mechanism (3) for applying a predetermined pressure in a narrowing direction, and a diameter corresponding to the groove shape of the screw to be measured, along the parallel surface (8) on the first rotation member (1) side. At least one first needle-shaped member (4) rotatably and movably held within a predetermined range, and a diameter corresponding to the groove shape of the screw to be measured, and the second rotating member (2) side At least one second needle member (5) rotatably and movably held within a predetermined range along the parallel surface (9). Preparative provided, the rotational position of the first and second needle-like member (4, 5) of the rotary mechanism when pressed against a predetermined pressure to the screw groove of the male screw to be measured (3),
An effective diameter measuring instrument for male threads, characterized in that the effective diameter is measured by detecting the difference from the rotational position when pressed against a reference male thread.
部材（１２）および前記第２針状部材（５）を保持する
保持部材（２２）は前記第１回転部材（１）および前記
第２回転部材（２）にそれぞれ着脱可能であることを特
徴とする請求項１に記載のおねじの有効径測定器。2. A holding member (12) holding the first needle-shaped member (4) and a holding member (22) holding the second needle-shaped member (5) are the first rotating member (1) and the holding member (22). The effective diameter measuring instrument for a male screw according to claim 1, wherein the effective diameter measuring instrument is attachable to and detachable from each of the second rotating members (2).
部材（２）は、それぞれ前記平行になる面（８、９）の
基準となるおねじに押し当てた時の平行度を調整する平
行調整機構を備えることを特徴とする請求項１および請
求項２に記載のおねじの有効径測定器。3. The parallelism of the first rotating member (1) and the second rotating member (2) when they are pressed against the male screw which is a reference of the parallel surfaces (8, 9). An effective diameter measuring instrument for a male screw according to claim 1 or 2, further comprising a parallel adjusting mechanism for adjusting.
駆動手段と、 前記回転機構（３）の回転位置の、基準となるおねじに
押し当てた時の回転位置との差の測定値を出力する出力
手段（３８）とを備えることを特徴とするおねじの有効
径自動測定装置。4. A device for automatically measuring the effective diameter of a male screw, wherein the effective diameter measuring device for the screw according to any one of claims 1 to 3 is driven, and the rotating mechanism (3) is driven according to a signal from the outside. A driving means; and an output means (38) for outputting a measured value of a difference between the rotational position of the rotating mechanism (3) and the rotational position when the rotational mechanism is pressed against a reference male screw. Automatic measuring device for effective diameter of male thread.
加工工程を制御する制御手段（１０６）とを備えること
を特徴とするおねじの加工装置。5. An external thread machining apparatus, wherein the automatic thread effective diameter measuring apparatus according to claim 4 and the machining step are controlled in accordance with a measurement signal from the external thread automatic diameter measuring apparatus. And a control means (106) for controlling the external thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4040893U JPH0712909U (en) | 1993-07-23 | 1993-07-23 | Male thread effective diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4040893U JPH0712909U (en) | 1993-07-23 | 1993-07-23 | Male thread effective diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0712909U true JPH0712909U (en) | 1995-03-03 |
Family
ID=12579843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4040893U Pending JPH0712909U (en) | 1993-07-23 | 1993-07-23 | Male thread effective diameter measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712909U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002206902A (en) * | 2001-01-09 | 2002-07-26 | Thk Co Ltd | Effective diameter measuring device of ball screw |
| JP2010101700A (en) * | 2008-10-22 | 2010-05-06 | Toyota Motor Corp | Support tool for measuring effective screw diameter |
| JP2019039735A (en) * | 2017-08-24 | 2019-03-14 | 株式会社東京精密 | Outer diameter measurement device and adjustment method thereof |
| JP2021092591A (en) * | 2021-03-19 | 2021-06-17 | 株式会社東京精密 | Outer diameter measuring device and adjustment method therefor |
-
1993
- 1993-07-23 JP JP4040893U patent/JPH0712909U/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002206902A (en) * | 2001-01-09 | 2002-07-26 | Thk Co Ltd | Effective diameter measuring device of ball screw |
| JP2010101700A (en) * | 2008-10-22 | 2010-05-06 | Toyota Motor Corp | Support tool for measuring effective screw diameter |
| JP2019039735A (en) * | 2017-08-24 | 2019-03-14 | 株式会社東京精密 | Outer diameter measurement device and adjustment method thereof |
| JP2021092591A (en) * | 2021-03-19 | 2021-06-17 | 株式会社東京精密 | Outer diameter measuring device and adjustment method therefor |
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