JP2000061782A - Longitudinal standard position measuring method of grooved axial work - Google Patents
Longitudinal standard position measuring method of grooved axial workInfo
- Publication number
- JP2000061782A JP2000061782A JP10240615A JP24061598A JP2000061782A JP 2000061782 A JP2000061782 A JP 2000061782A JP 10240615 A JP10240615 A JP 10240615A JP 24061598 A JP24061598 A JP 24061598A JP 2000061782 A JP2000061782 A JP 2000061782A
- Authority
- JP
- Japan
- Prior art keywords
- work
- groove
- contact
- moving body
- touch probe
- 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
Links
Landscapes
- Machine Tool Sensing Apparatuses (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、工作機械におい
て、溝付き軸物ワークの長手方向における基準位置を測
定する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for measuring a reference position in the longitudinal direction of a grooved shaft work in a machine tool.
【０００２】[0002]
【従来の技術】一般に、軸物ワークの加工に際しては、
ワークの両端に設けられたセンタ孔の寸法バラツキを補
正するために、ワークの長手方向における基準位置を測
定する必要がある。特に、図７に示すような溝付き軸物
ワーク１の場合は、中間部に形成された溝２（例えば、
スナップリング溝）の一端面を長手基準位置として測定
し、ここから研削面３までの長手寸法を求めるという方
法が採られる。ここで、基準位置の測定には、従来から
ワークロケータ５１が広く使用されている。2. Description of the Related Art Generally, when machining a shaft work,
In order to correct the dimensional variation of the center holes provided at both ends of the work, it is necessary to measure a reference position in the longitudinal direction of the work. Particularly, in the case of the grooved shaft work 1 as shown in FIG. 7, the groove 2 (for example,
A method is adopted in which one end surface of the snap ring groove) is measured as a longitudinal reference position, and the longitudinal dimension from here to the grinding surface 3 is obtained. Here, the work locator 51 has been widely used for the measurement of the reference position.
【０００３】[0003]
【発明が解決しようとする課題】ところが、ワークロケ
ータ５１の接触子５１ａを溝２に直接挿入すると、セン
タ孔５の寸法バラツキでワーク１が長手方向にずれてい
る場合に、接触子５１ａがワーク１の外径部と干渉して
破損するおそれがある。これを回避するため、従来は、
ワーク１の端面６を測定したのち、この測定位置から図
面上の溝位置までワークロケータ５１を移動し、再度、
溝２の端面を測定していた。しかしながら、この方法に
よると、２度のワークロケーティングが必要で、長手基
準位置の測定に時間がかかるという問題点があった。However, when the contactor 51a of the work locator 51 is directly inserted into the groove 2, when the work 1 is displaced in the longitudinal direction due to the dimensional variation of the center hole 5, the contactor 51a is replaced by the work piece 51a. 1 may interfere with the outer diameter portion and be damaged. To avoid this, conventionally,
After measuring the end face 6 of the work 1, the work locator 51 is moved from this measurement position to the groove position on the drawing, and again,
The end surface of the groove 2 was measured. However, according to this method, work locating is required twice, and it takes time to measure the longitudinal reference position.
【０００４】そこで、本発明の課題は、溝付き軸物ワー
クの長手基準位置を短時間に測定できる方法を提供する
ことにある。Therefore, an object of the present invention is to provide a method capable of measuring the longitudinal reference position of a grooved shaft work in a short time.
【０００５】[0005]
【課題を解決するための手段】上記の課題を解決するた
めに、本発明の長手基準位置測定方法は、両端にセンタ
孔が中間部に溝が形成された溝付き軸物ワークを工作機
械のＺ軸移動体上に芯出し保持し、ワーク接触信号を出
力するタッチプローブを工作機械のＸ軸移動体上に回動
可能に設け、Ｚ軸移動体及びＸ軸移動体を移動してタッ
チプローブの接触子を溝近傍のワーク外周面に接触さ
せ、Ｚ軸移動体を移動して接触子を溝に挿入し、Ｚ軸移
動体を移動して接触子を溝の基準端面に接触させ、この
ときのＺ軸移動体の位置をワークの長手基準位置として
記憶することを特徴とする。In order to solve the above-mentioned problems, the longitudinal reference position measuring method according to the present invention uses a grooved shaft work having a center hole at both ends and a groove in the middle portion of a machine tool Z. A touch probe that holds the axis moving body and outputs a work contact signal is rotatably provided on the X axis moving body of the machine tool, and the Z axis moving body and the X axis moving body are moved to move the touch probe. The contactor is brought into contact with the outer peripheral surface of the work near the groove, the Z-axis moving body is moved to insert the contactor into the groove, and the Z-axis moving body is moved to bring the contactor into contact with the reference end surface of the groove. The position of the Z-axis moving body is stored as the longitudinal reference position of the work.
【０００６】また、本発明の長手基準位置測定方法は、
ワークが何れの向きであってもその長手基準位置を的確
に測定できるように、加工データに基づき溝の２つの端
面のうち一方を基準端面として判別する段階を含む。The longitudinal reference position measuring method of the present invention is
It includes a step of determining one of the two end faces of the groove as a reference end face based on the processing data so that the longitudinal reference position can be accurately measured regardless of the orientation of the work.
【０００７】[0007]
【発明の実施の形態】以下、本発明を研削盤に具体化し
た一実施形態を図面に基づいて説明する。図１に示すよ
うに、この研削盤においては、Ｚ軸移動体としてのテー
ブル１１がモータ１２によりボールネジ１３を介し左右
方向へ移動可能に設置され、このテーブル１１上に主軸
台１４と心押台１５とが設けられている。主軸台１４及
び心押台１５にはそれぞれセンタ１６，１７が取り付け
られ、両センタ１６，１７間に溝付き軸物ワーク１が両
端のセンタ孔５にて芯出し保持されている。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment in which the present invention is embodied in a grinding machine will be described below with reference to the drawings. As shown in FIG. 1, in this grinding machine, a table 11 as a Z-axis moving body is installed by a motor 12 so as to be movable in the left and right directions via a ball screw 13, and a headstock 14 and a tailstock are mounted on the table 11. And 15 are provided. Centers 16 and 17 are attached to the headstock 14 and tailstock 15, respectively, and a shafted work 1 having a groove is centered and held between the centers 16 and 17 by center holes 5 at both ends.
【０００８】テーブル１１の後方には、Ｘ軸移動体とし
ての砥石台１９がモータ２０によりボールネジ２１を介
し斜め前後方向へ移動可能に設置され、砥石台１９に
は、ワーク１の研削面３を加工する砥石２２と、ワーク
接触信号を出力するタッチプローブ２３とが設けられて
いる。図３に示すように、タッチプローブ２３はワーク
回転軸線と平行な軸２４で砥石台１９に対し回動可能に
取り付けられ、エアシリンダ２５により退避位置（鎖線
位置）と測定位置（実線位置）とに配置される。なお、
タッチプローブ２３は接触子２３ａの破損を防止するた
めのオーバトラベル機能を備え、測定位置から退避位置
までの角度範囲θで接触信号を出力できるようになって
いる。A grindstone base 19 as an X-axis moving body is installed behind the table 11 so as to be movable diagonally forward and backward by a motor 20 via a ball screw 21, and the grindstone base 19 has the grinding surface 3 of the work 1. A grindstone 22 for processing and a touch probe 23 for outputting a work contact signal are provided. As shown in FIG. 3, the touch probe 23 is rotatably attached to the grindstone 19 by a shaft 24 parallel to the workpiece rotation axis, and is moved by an air cylinder 25 to a retracted position (chain line position) and a measurement position (solid line position). Is located in. In addition,
The touch probe 23 has an overtravel function for preventing damage to the contact 23a, and is capable of outputting a contact signal in an angular range θ from the measurement position to the retracted position.
【０００９】上記構成の研削盤において、次に、ワーク
１の長手基準位置測定方法を図２のフローチャートに従
って説明する。溝付き軸物ワーク１の研削に先立ち、ま
ず、ステップＳ１で、タッチプローブ２３を退避位置か
ら測定位置に配置する（図３参照）。次いで、ステップ
Ｓ２〜Ｓ４で、テーブル１１及び砥石台１９を移動し、
接触子２３ａを溝２近傍のワーク外周面に接触させ、タ
ッチプローブ２３をＯＮさせて、テーブル１１及び砥石
台１９を停止する（図４参照）。In the grinding machine having the above structure, a method of measuring the longitudinal reference position of the work 1 will be described below with reference to the flow chart of FIG. Prior to grinding the grooved shaft workpiece 1, first, in step S1, the touch probe 23 is placed from the retracted position to the measurement position (see FIG. 3). Next, in steps S2 to S4, the table 11 and the grindstone 19 are moved,
The contact 23a is brought into contact with the outer peripheral surface of the work in the vicinity of the groove 2, the touch probe 23 is turned on, and the table 11 and the grindstone 19 are stopped (see FIG. 4).
【００１０】次に、ステップＳ５〜Ｓ７で、溝２がタッ
チプローブ２３と接近する方向へテーブル１１を移動
し、接触子２３ａを溝２に挿入し、タッチプローブ２３
をＯＦＦさせて、テーブル１１を停止する（図５参
照）。続いて、ステップＳ８〜Ｓ１２で、加工データに
基づき溝２の２つの端面のうちから基準となる端面を判
別し、テーブル１１を左又は右へ送り、接触子２３ａを
基準端面に接触させ、タッチプローブ２３をＯＮさせ
て、テーブル１１を停止する（図６参照）。Next, in steps S5 to S7, the table 11 is moved in the direction in which the groove 2 approaches the touch probe 23, the contact piece 23a is inserted into the groove 2, and the touch probe 23 is inserted.
Is turned off and the table 11 is stopped (see FIG. 5). Subsequently, in steps S8 to S12, a reference end face is discriminated from the two end faces of the groove 2 based on the processing data, the table 11 is sent to the left or right, and the contact 23a is brought into contact with the reference end face and touched. The probe 23 is turned on and the table 11 is stopped (see FIG. 6).
【００１１】そして、ステップＳ１３で、このときのテ
ーブル１１のＺ軸方向位置をワーク１の長手基準位置と
してメモリに記憶し、その基準位置から研削面３までの
長手寸法を補正するとともに、この補正データに基づい
てテーブル１１の位置決めデータを補正したのち、ステ
ップＳ１４で、タッチプローブ２３を測定位置から退避
位置に配置して、一連の測定作業を終了する。Then, in step S13, the position of the table 11 in the Z-axis direction at this time is stored in the memory as the longitudinal reference position of the workpiece 1, and the longitudinal dimension from the reference position to the grinding surface 3 is corrected, and this correction is performed. After correcting the positioning data of the table 11 based on the data, in step S14, the touch probe 23 is placed from the measurement position to the retracted position, and a series of measurement work is completed.
【００１２】このように、本実施形態の測定方法によれ
ば、タッチプローブ２３による測定箇所を溝２に限定し
て、１度のワークロケーティングでワーク１の長手基準
位置を短時間に測定することができる。また、溝２の基
準端面を判別してタッチプローブ２３の接触子２３ａを
接触させるため、ワーク１が何れの向きで保持されてい
る場合でも、その長手基準位置を的確に測定することが
できる。さらに、テーブル１１及び砥石台１９の動きを
利用してタッチプローブ２３を位置決めするので、測定
専用の移動体を設ける必要がなく、研削盤を安価に構成
できるとともに、ワーク１の種類が変わった場合でも、
タッチプローブ２３の段取り替えなしで対応できる利点
もある。As described above, according to the measuring method of the present embodiment, the measurement position by the touch probe 23 is limited to the groove 2, and the longitudinal reference position of the work 1 is measured in a short time by one work locating. be able to. Further, since the reference end face of the groove 2 is discriminated and the contactor 23a of the touch probe 23 is brought into contact with the contact probe 23, the longitudinal reference position can be accurately measured regardless of the orientation of the work 1 held. Further, since the touch probe 23 is positioned by using the movements of the table 11 and the grindstone 19, it is not necessary to provide a moving body dedicated to measurement, the grinder can be configured at low cost, and the type of the work 1 is changed. But
There is also an advantage that the touch probe 23 can be dealt with without setup change.
【００１３】なお、本発明は上記実施形態に限定される
ものではなく、例えば、旋盤における溝付き軸物ワーク
の長手基準位置の測定に適用するなど、本発明の趣旨を
逸脱しない範囲で測定装置の構成並びに測定手順を適宜
に変更して具体化することも可能である。The present invention is not limited to the above-mentioned embodiment, and is applicable to, for example, measurement of the longitudinal reference position of a grooved shaft work in a lathe without departing from the scope of the present invention. It is also possible to embody by appropriately changing the configuration and the measurement procedure.
【００１４】[0014]
【発明の効果】以上詳述したように、本発明によれば、
溝付き軸物ワークの長手基準位置を１度のワークロケー
ティングで短時間に測定できるという優れた効果を奏す
る。As described in detail above, according to the present invention,
It has an excellent effect that the longitudinal reference position of the grooved shaft work can be measured in a short time by the work locating once.
【図１】本発明の方法が実施される研削盤の平面図であ
る。1 is a plan view of a grinder on which the method of the invention is carried out, FIG.
【図２】本発明による測定方法の一実施形態を示すフロ
ーチャートである。FIG. 2 is a flowchart showing an embodiment of a measuring method according to the present invention.
【図３】図２のステップＳ１に対応するタッチプローブ
の動作説明図である。FIG. 3 is an operation explanatory diagram of the touch probe corresponding to step S1 of FIG.
【図４】図２のステップＳ２〜Ｓ４に対応するタッチプ
ローブの動作説明図である。FIG. 4 is an operation explanatory diagram of the touch probe corresponding to steps S2 to S4 of FIG.
【図５】図２のステップＳ５〜Ｓ７に対応するタッチプ
ローブの動作説明図である。5 is an operation explanatory diagram of the touch probe corresponding to steps S5 to S7 of FIG. 2. FIG.
【図６】図２のステップＳ８〜Ｓ１２に対応するタッチ
プローブの動作説明図である。FIG. 6 is an operation explanatory diagram of the touch probe corresponding to steps S8 to S12 of FIG.
【図７】従来のワークロケータによる測定方法を示す説
明図である。FIG. 7 is an explanatory diagram showing a measurement method using a conventional work locator.
１・・ワーク、２・・溝、３・・研削面、５・・センタ
孔、１１・・テーブル、１４・・主軸台、１５・・心押
台、１９・・砥石台、２３・・タッチプローブ、２３ａ
・・接触子。1 ... Work, 2 ..., Groove, 3 ... Grinding surface, 5 ... Center hole, 11 ... Table, 14 ... Headstock, 15 ... Tailstock, 19 ... Grindstone, 23 ... Probe, 23a
..Contacts
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2F063 AA02 BA21 BC04 BD20 CA11 DA02 DA11 EB02 2F069 AA02 BB01 CC05 DD15 GG01 GG52 HH01 3C029 AA04 BB05 EE00 ─────────────────────────────────────────────────── ─── Continued front page F term (reference) 2F063 AA02 BA21 BC04 BD20 CA11 DA02 DA11 EB02 2F069 AA02 BB01 CC05 DD15 GG01 GG52 HH01 3C029 AA04 BB05 EE00
Claims (2)
た溝付き軸物ワークを工作機械のＺ軸移動体上に芯出し
保持し、ワーク接触信号を出力するタッチプローブを工
作機械のＸ軸移動体上に回動可能に設け、Ｚ軸移動体及
びＸ軸移動体を移動してタッチプローブの接触子を溝近
傍のワーク外周面に接触させ、Ｚ軸移動体を移動して接
触子を溝に挿入し、Ｚ軸移動体を移動して接触子を溝の
基準端面に接触させ、このときのＺ軸移動体の位置をワ
ークの長手基準位置として記憶することを特徴とする溝
付き軸物ワークの長手基準位置測定方法。1. A touch probe for holding a grooved shaft work having center holes at both ends and a groove formed at an intermediate portion on a Z-axis moving body of a machine tool and for outputting a work contact signal by using a touch probe X of the machine tool. It is rotatably provided on the shaft moving body, and the Z-axis moving body and the X-axis moving body are moved to bring the contact of the touch probe into contact with the work outer peripheral surface in the vicinity of the groove, and move the Z-axis moving body to make contact. Is inserted into the groove, the Z-axis moving body is moved to bring the contact into contact with the reference end surface of the groove, and the position of the Z-axis moving body at this time is stored as the longitudinal reference position of the workpiece. Measuring method of longitudinal reference position of shaft work.
ち一方を基準端面として判別する段階を含む請求項１記
載の溝付き軸物ワークの長手基準位置測定方法。2. The method for measuring the longitudinal reference position of a grooved shaft workpiece according to claim 1, further comprising the step of determining one of the two end faces of the groove as a reference end face based on the processing data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10240615A JP2000061782A (en) | 1998-08-26 | 1998-08-26 | Longitudinal standard position measuring method of grooved axial work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10240615A JP2000061782A (en) | 1998-08-26 | 1998-08-26 | Longitudinal standard position measuring method of grooved axial work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000061782A true JP2000061782A (en) | 2000-02-29 |
Family
ID=17062142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10240615A Pending JP2000061782A (en) | 1998-08-26 | 1998-08-26 | Longitudinal standard position measuring method of grooved axial work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000061782A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150298269A1 (en) * | 2012-10-31 | 2015-10-22 | Nsk Ltd. | Method for centering grinding wheel in thread grinder and measurement device for centering |
| CN109079584A (en) * | 2018-09-03 | 2018-12-25 | 北京星航机电装备有限公司 | A kind of hot investment casting part machining benchmark aligning method |
| JP2019077001A (en) * | 2017-10-25 | 2019-05-23 | トーヨーエイテック株式会社 | Grinding method |
-
1998
- 1998-08-26 JP JP10240615A patent/JP2000061782A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150298269A1 (en) * | 2012-10-31 | 2015-10-22 | Nsk Ltd. | Method for centering grinding wheel in thread grinder and measurement device for centering |
| US9707649B2 (en) * | 2012-10-31 | 2017-07-18 | Nsk Ltd. | Method for centering grinding wheel in thread grinder and measurement device for centering |
| JP2019077001A (en) * | 2017-10-25 | 2019-05-23 | トーヨーエイテック株式会社 | Grinding method |
| CN109079584A (en) * | 2018-09-03 | 2018-12-25 | 北京星航机电装备有限公司 | A kind of hot investment casting part machining benchmark aligning method |
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