JPH01271149A - Alignment control device in work machine - Google Patents
Alignment control device in work machineInfo
- Publication number
- JPH01271149A JPH01271149A JP9571688A JP9571688A JPH01271149A JP H01271149 A JPH01271149 A JP H01271149A JP 9571688 A JP9571688 A JP 9571688A JP 9571688 A JP9571688 A JP 9571688A JP H01271149 A JPH01271149 A JP H01271149A
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- workpiece
- axis
- wheel
- bed
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000003754 machining Methods 0.000 abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
Landscapes
- Automatic Control Of Machine Tools (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えば研削盤等のワーク取付は軸の軸芯と
、ホイールヘットのホイール軸の軸芯とのずれを自動的
に補正制御する加工装置に於ける芯合せ制御装置に関す
るものである。[Detailed Description of the Invention] [Field of Industrial Application] This invention automatically corrects and controls the misalignment between the axis of a shaft and the axis of a wheel head of a wheel head when mounting a workpiece such as a grinder. This invention relates to an alignment control device in a processing device.
従来、レンズ等の球面を研摩する装置は、加工する前の
段取りで、加工装置のレンズ（ワーク）を装着するワー
ク軸の軸芯と、ダイヤモンドカッタ等の工具を取付けた
ホイール軸の軸芯とを一致させ、この状態でホールヘッ
トをワークに接近させて所定の研摩加工を行なっている
。Conventionally, equipment for polishing spherical surfaces such as lenses has been designed to align the axis of the workpiece shaft on which the lens (workpiece) of the processing equipment is attached, and the axis of the wheel axis on which a tool such as a diamond cutter is attached, in the setup before processing. In this state, the hole head is brought close to the workpiece and a predetermined polishing process is performed.
然しなから、ワークの取付は状態や、加工時の温度、更
に加工時の振動等で、ワーク軸の軸芯とホイール軸の軸
芯とがずれる場合があり、このような状態で加工を行っ
た場合には、精度の良い加工を行うことができないばか
りか、不良品を製造することになる。However, depending on the mounting conditions of the workpiece, the temperature during machining, and vibrations during machining, the axis of the workpiece axis and the axis of the wheel axis may be misaligned. In such a case, not only will it not be possible to perform accurate processing, but also defective products will be produced.
このため、軸芯のずれを迅速に把握して補正し得るよう
に、ワーク軸や、ホイール軸にマイクロメータ等の計測
器を取付けておき、加工の精度を保つようにしている。For this reason, a measuring device such as a micrometer is attached to the work shaft or the wheel shaft so that the misalignment of the shaft center can be quickly detected and corrected, thereby maintaining the precision of machining.
然しなから、上記のような軸芯のずれを常に作業員が加
工装置の近傍に位置して検出する方法では、作業能率が
極めて悪く、また常に正確に軸芯のずれを検出するのは
、難しいと言う問題があった。However, the above-mentioned method in which a worker is always located near the processing equipment to detect the misalignment of the shaft center is extremely inefficient, and it is difficult to always accurately detect the misalignment of the shaft center. There was a problem that was difficult.
この発明は、かかる従来の問題点に着目して案出された
もので、ワーク軸の軸芯とホイール軸の軸芯とがずれた
場合、人手を介することなく自動的に補正して、加工精
度の向上を図ることが出来ると共に、作業性、生産性の
向上を図るようにした加工装置に於ける芯合せ制御装置
を提供することを目的とするものである。This invention was devised by focusing on such conventional problems, and when the axis of the workpiece axis and the axis of the wheel axis are misaligned, it can be automatically corrected without human intervention and processed. It is an object of the present invention to provide an alignment control device for a processing device that is capable of improving accuracy, as well as workability and productivity.
この発明は上記目的を達成するため、ベッド上に、ワー
ク取付は軸を備えたワークヘットと、前記ワーク取付は
軸に対面して設置されたホイールヘットとを設置し、前
記ワークヘットに、駆動装置を介してワーク取付は軸の
昇降機構を設け、前記ベッド上に、ベッド上面からワー
ク取付は軸の軸芯までの距離と、ホイールヘットのホイ
ール軸の軸芯までの距離とを検出する検出手段を各々配
設し、この検出手段と前記駆動装置とを制御装置を介し
て接続し、前記検出手段により検出したベッドからの距
離を制御装置で比較演算し、制御信号を駆動装置に出力
して昇降機構を介してワーク取付は軸の軸芯とホイール
軸の軸芯とを一致させるように補正制御するようにした
ことを要旨とするものである。In order to achieve the above object, the present invention installs on a bed a work head having a shaft for mounting a workpiece, and a wheel head installed facing the shaft for mounting the workpiece, and a drive head for the work head. A device is used to mount the workpiece by providing a lifting and lowering mechanism for the shaft, and detecting the distance from the top surface of the bed to the axial center of the shaft and the distance from the wheel head to the axial center of the wheel shaft. The detecting means and the driving device are connected through a control device, the distance from the bed detected by the detecting device is compared and calculated by the control device, and a control signal is output to the driving device. The gist of the present invention is that the mounting of the workpiece via the lifting and lowering mechanism is corrected and controlled so that the axial center of the shaft and the axial center of the wheel shaft coincide.
この発明は、上記のような構成からなり、ワークの加工
時や、加工終了時に、ワーク軸の軸芯とホイール軸の軸
芯とがずれていた場合、ベッド上面からワーク取付は軸
の軸芯までの距離を測定する検出手段と、ホイールヘッ
トのホイール軸の軸芯までの距離とを検出する検出手段
とでその距離を測定し、この検出手段により検出したベ
ッドからの距離を制御装置で比較演算し、制御信号を駆
動装置に出力して昇降機構を介してワーク取付は軸の軸
芯とホイール軸の軸芯とを一致させるように補正制御す
ることで、人手を介することなく軸芯のずれを自動的に
補正し、加工精度を向上させると共に、生産性の向上を
図るようにしたことを特徴としている。This invention has the above-mentioned configuration, and if the axis of the workpiece axis and the axis of the wheel axis are misaligned when machining the workpiece or at the end of machining, the workpiece can be mounted from the top surface of the bed by aligning the axis of the shaft with the axis of the wheel axis. The distance is measured by a detection means for measuring the distance from the bed to the center of the wheel shaft of the wheel head and a detection means for detecting the distance to the axis of the wheel shaft of the wheel head, and the distance from the bed detected by the detection means is compared by the control device. The calculation is performed, a control signal is output to the drive device, and the workpiece is mounted via the lifting mechanism by performing correction control so that the axis of the shaft and the axis of the wheel axis match, so that the axis can be adjusted without manual intervention. It is characterized by automatically correcting deviations to improve machining accuracy and productivity.
以下添付図面に基いて、この発明の詳細な説明する。 The present invention will be described in detail below based on the accompanying drawings.
第１図は、この発明を実施した球面研削盤の正面図、第
２図は側面図、第３図は平面図であって、この球面研削
盤は、ベッド１上に、ワーク取付は軸２を備えたワーク
ヘット３と、前記ワーク取付は軸２に対面して設置され
たホイール軸４を備えた二台のホイールヘット５ａ、５
ｂとが設置が設置されている。Fig. 1 is a front view of a spherical grinder embodying the present invention, Fig. 2 is a side view, and Fig. 3 is a plan view. and two wheel heads 5a, 5 each having a wheel shaft 4 installed facing the shaft 2 for mounting the workpiece.
b and the installation is installed.
前記、ワークヘット３には、第１図〜第４図に示すよう
にパルスモータ等の駆動装置６を介してワーク取付は軸
２の昇降機構７が設置され、また前記ベッド１上には、
ベッド１の上面からワーク取付は軸２の軸芯までの距離
と、ホイールヘット５ａ、５ｂのホイール軸４の軸芯ま
での距離とを検出する検出手段８ａ、８ｂが各々配設さ
れている。As shown in FIGS. 1 to 4, the work head 3 is equipped with an elevating mechanism 7 with a shaft 2 for mounting the work through a drive device 6 such as a pulse motor, and on the bed 1,
Detection means 8a and 8b are provided for detecting the distance from the top surface of the bed 1 to the center of the shaft 2 for mounting the workpiece, and the distance from the top of the bed 1 to the center of the wheel shaft 4 of the wheel heads 5a and 5b.
そして、上記検出手段８ａ、８ｂと前記駆動装置６とは
制御装置９を介して接続され、前記検出手段８ａ、８ｂ
により検出したベッド１からの距離を制御装置９で比較
演算し、制御信号を駆動装置６に出力して昇降機構７を
介してワーク取付は軸２の軸芯とホイール軸４の軸芯と
を一致させるように補正制御するようにしている。The detection means 8a, 8b and the drive device 6 are connected via a control device 9, and the detection means 8a, 8b are connected via a control device 9.
The control device 9 compares and calculates the detected distance from the bed 1, outputs a control signal to the drive device 6, and uses the lifting mechanism 7 to connect the axis of the shaft 2 and the axis of the wheel shaft 4. Correction control is performed so that they match.
前記、ワークヘット３は、ベッド１上に配設されたガイ
ド部材１０に沿って進退可能に構成され、またワーク取
付は軸２は、駆動モータ１１と接続する図示しない歯車
機構を介して所定の回転で駆動されるように構成されて
いる。The work head 3 is configured to be movable back and forth along a guide member 10 disposed on the bed 1, and the shaft 2 for attaching the work is connected to a drive motor 11 via a gear mechanism (not shown). It is configured to be rotationally driven.
また、ワークヘット３と対向する位置に配設されたホイ
ールヘット５ａ、５ｂは、ベッド１上に設置された旋回
軸２１を中心にして旋回するアンギュラ−ヘット１２上
に載置され、また各々のホイール軸４は、パルスモータ
１３と接続する図示しない伝達機構を介してワークヘソ
＋−３に向かって接近、離反可能に構成されると共に、
駆動モータ１４を介して所定の回転数で回転駆動される
ようになっている。Further, wheel heads 5a and 5b disposed at positions facing the work head 3 are placed on an angular head 12 that rotates around a pivot shaft 21 installed on the bed 1, and each The wheel shaft 4 is configured to be able to approach and move away from the work piece +-3 via a transmission mechanism (not shown) connected to the pulse motor 13, and
It is configured to be rotated by a drive motor 14 at a predetermined number of rotations.
各々のホイール軸４の先端には、ワークＷを加工するダ
イヤモンドカッタ等の研削工具が着脱自在に取付けられ
ている。A grinding tool such as a diamond cutter for processing the work W is detachably attached to the tip of each wheel shaft 4.
前記、ワークヘット３の上部には、ガラスレンズ等のワ
ークＷを複数個収容してお（ワークストック装置１５が
設置され、このワークスドック装置１５と、前記ワーク
取付は軸２との間には、加工したワークＷと、加工前の
ワークＷとを自動的に交換する旋回可能なワーク交換ア
ーム１６が配設されている。A plurality of works W such as glass lenses are stored in the upper part of the work head 3 (a work stock device 15 is installed, and there is a space between the works dock device 15 and the work mounting shaft 2). A rotatable workpiece exchange arm 16 is provided to automatically exchange a processed workpiece W with an unprocessed workpiece W.
ワークスドック装置１５には、複数のワークＷを所定の
間隔で保持するエンドレス状のチェーン１７が設けられ
、このエンドレス状のチェーン１７は、シリンダー等の
駆動手段１８により間欠的に回転し、前記ワーク交換ア
ーム１Ｇとの交換位置で停止するように構成されている
。The works dock device 15 is provided with an endless chain 17 that holds a plurality of works W at predetermined intervals, and this endless chain 17 is intermittently rotated by a driving means 18 such as a cylinder, and It is configured to stop at the exchange position with the exchange arm 1G.
前記、ワーク取付は軸２の昇降機構７としては、例えば
第４図に示すように、パルスモータ等の駆動装置６の回
転駆動軸と接続するボールスクリュー１９に、ワーク取
付は軸２に取付けられたスライドベース２０のナツト２
０ａを螺嵌させ、駆動装置６の駆動によりボールスクリ
ュー１９が回転駆動して、このボールスクリュー１９に
螺嵌するナツト２０ａ、スライドベース２０を介してワ
ーク取付は軸２の軸芯を上下方向に移動させて調整する
ように構成されている。As shown in FIG. 4, for example, as shown in FIG. 4, the workpiece mounting mechanism 7 for the shaft 2 is a ball screw 19 connected to the rotational drive shaft of a drive device 6 such as a pulse motor, and the workpiece mounting mechanism 7 is mounted to the shaft 2. Slide base 20 nut 2
The ball screw 19 is rotated by the driving of the drive device 6, and the workpiece is mounted in the vertical direction with respect to the axis of the shaft 2 via the nut 20a screwed into the ball screw 19 and the slide base 20. It is configured to be moved and adjusted.
次に、上記のような構成のもとに、ワーク取付は軸２の
軸芯とホイール軸４の軸芯とを一致させるように補正制
御する方法について説明する。Next, a method of correcting and controlling work mounting so that the axis of the shaft 2 and the axis of the wheel shaft 4 coincide with each other based on the above configuration will be described.
まず、ワークＷの曲面研削加工時には、ベッド１上に設
けられた検出手段８ａ、８ｂにより、ベッド１の上面か
らワーク取付は軸２の軸芯までの距離と、ホイールヘッ
ト５ａ、５ｂのホイール軸４の軸芯までの距離とを常時
検出している状態にしておく。First, during curved surface grinding of the workpiece W, the detection means 8a and 8b provided on the bed 1 detect the distance from the top surface of the bed 1 to the axis of the shaft 2 and the wheel axis of the wheel heads 5a and 5b. The distance to the axis of No. 4 is constantly detected.
そしてワークＷの加工時や、加工終了時に、ワーク取付
は軸２の軸芯とホイール軸４の軸芯とがずれていた場合
、この検出した値の信号が制御装置９に入力されて、制
御装置９で比較演算し、そして制御信号を駆動装置６に
出力する。Then, when processing the workpiece W or at the end of processing, if the axis of the workpiece attachment is misaligned with the axis of the shaft 2 and the axis of the wheel shaft 4, a signal of this detected value is input to the control device 9 to control the workpiece. The device 9 performs comparison calculations and outputs a control signal to the drive device 6.
すると、駆動装置６は制御装置９からの信号に基づき、
所定の回転数で回転駆動し、これによりボールスクリュ
ー１９が回転駆動して、このボールスクリュー１９に螺
嵌するナツト２０ａ。Then, based on the signal from the control device 9, the drive device 6
The nut 20a is rotated at a predetermined rotational speed, thereby rotationally driving the ball screw 19, and screwed into the ball screw 19.
スライドベース２０を介してワーク取付は軸２の軸芯を
上下方向に所定の距離移動させ、ワーク取付は軸２の軸
芯と、ホイール軸４の軸芯とを自動的に調芯させるので
ある。When mounting the workpiece, the axis of the shaft 2 is moved vertically a predetermined distance by a predetermined distance via the slide base 20, and when mounting the workpiece, the axis of the shaft 2 and the axis of the wheel shaft 4 are automatically aligned. .
このように、ワーク取付は軸２の軸芯とホイール軸４の
軸芯とを、常に検出手段３ａ、３ｂを介して検出してお
き、軸芯にずれが生じていた場合には、人手を介するこ
となく自動的に補正して調芯することが出来るので、加
工精度を向上させることが出来ると共に、作業性も著し
く向上させることが出来るのである。In this way, when mounting a workpiece, the center of the shaft 2 and the center of the wheel shaft 4 are always detected via the detection means 3a and 3b, and if there is a misalignment in the center of the shaft, manual intervention is required. Since the alignment can be automatically corrected and aligned without any intervention, processing accuracy can be improved, and workability can also be significantly improved.
この発明は、上記のようにベッド上に、ワーク取付は軸
を備えたワークヘットと、前記ワーク取付は軸に対面し
て設置されたホイールヘットとを設置し、前記ワークヘ
ットに、駆動装置を介してワーク取付は軸の昇降機構を
設げ、前記ベッド上に、ベッド上面からワーク取付は軸
の軸芯までの距離と、ホイールヘットのホイール軸の軸
芯までの距離とを検出する検出手段を各々配設し、この
検出手段と前記駆動装置とを制御装置を介して接続し、
前記検出手段により検出したベッドからの距離を制御装
置で比較演算し、制御信号を駆動装置に出力して昇碑機
構を介してワーク取付は軸の軸芯とホイール軸の軸芯と
を一致させるように補正制御するようにしたので、ワー
ク軸の軸芯とホイール軸の軸芯とがずれた場合、人手を
介することなく自動的に補正して、加工精度の向上を図
ることが出来ると共に、作業性、生産性の向上を図るこ
とが出来る効果がある。In this invention, a work head equipped with a shaft for mounting a workpiece and a wheel head installed facing the shaft for mounting the workpiece are installed on the bed as described above, and a drive device is attached to the workhead. A mechanism for lifting and lowering the workpiece mounting shaft is provided on the bed, and a detection means is provided on the bed for detecting the distance from the top surface of the bed to the axis of the workpiece mounting shaft and the distance from the wheel head to the center of the wheel shaft. and connecting the detection means and the drive device via a control device,
A control device compares and calculates the distance from the bed detected by the detection means, outputs a control signal to the drive device, and aligns the axis of the shaft and the axis of the wheel axis for mounting the workpiece via the lifting mechanism. Since the correction control is performed in this manner, if the axis of the workpiece axis and the axis of the wheel axis are misaligned, it can be automatically corrected without human intervention, improving machining accuracy. This has the effect of improving workability and productivity.
第１図は、この発明を実施した球面研削盤の正面図、第
２図は側面図、第３図は平面図、第４図は軸芯の制御方
法を示す説明図である。
１・・・ベッド、２・・・ワーク取付は軸、３・・・ワ
ークヘット、４・・・ホイール軸、５ａ、５ｂ・・・ホ
イールヘット、６・・・駆動装置、７・・・昇降機構、
８ａ、３ｂ・・・検出手段、９・・・制御装置、Ｗ・・
・ワーク。
代理人 弁理士 小 川 信 −FIG. 1 is a front view of a spherical grinder embodying the present invention, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. 4 is an explanatory diagram showing a method of controlling the shaft center. 1...Bed, 2...Work mounting shaft, 3...Work head, 4...Wheel shaft, 5a, 5b...Wheel head, 6...Drive device, 7...Elevating mechanism,
8a, 3b...detection means, 9...control device, W...
·work. Agent Patent Attorney Nobuo Ogawa −
Claims (1)
前記ワーク取付け軸に対面して設置されたホィールヘッ
トとを設置し、前記ワークヘットに、駆動装置を介して
ワーク取付け軸の昇降機構を設け、前記ベッド上に、ベ
ッド上面からワーク取付け軸の軸芯までの距離と、ホィ
ールヘットのホィール軸の軸芯までの距離とを検出する
検出手段を各々配設し、この検出手段と前記駆動装置と
を制御装置を介して接続し、前記検出手段により検出し
たベッドからの距離を制御装置で比較演算し、制御信号
を駆動装置に出力して昇降機構を介してワーク取付け軸
の軸芯とホィール軸の軸芯とを一致させるように補正制
御するようにしたことを特徴とする加工装置に於ける芯
合せ制御装置。A workhead with a workpiece mounting shaft on the bed,
a wheel head installed facing the workpiece mounting shaft, a lifting mechanism for the workpiece mounting shaft is provided on the workhead via a drive device, and the shaft of the workpiece mounting shaft is mounted on the bed from the top surface of the bed. Detection means for detecting the distance to the center and the distance to the axis of the wheel shaft of the wheel head are respectively provided, and the detection means and the drive device are connected via a control device, and the detection means The control device compares and calculates the detected distance from the bed, outputs a control signal to the drive device, and performs correction control via the lifting mechanism to align the axis of the workpiece attachment axis with the axis of the wheel axis. An alignment control device for a processing device, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9571688A JPH01271149A (en) | 1988-04-20 | 1988-04-20 | Alignment control device in work machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9571688A JPH01271149A (en) | 1988-04-20 | 1988-04-20 | Alignment control device in work machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01271149A true JPH01271149A (en) | 1989-10-30 |
Family
ID=14145209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9571688A Pending JPH01271149A (en) | 1988-04-20 | 1988-04-20 | Alignment control device in work machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01271149A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03161246A (en) * | 1989-11-17 | 1991-07-11 | Mitsubishi Heavy Ind Ltd | Correcting method for concentricity of opposed type machine tool |
| CN103447854A (en) * | 2013-09-02 | 2013-12-18 | 上海三一精机有限公司 | Workpiece automatic centering device and processing center |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4922509A (en) * | 1972-06-28 | 1974-02-28 | ||
| JPS5331294A (en) * | 1976-09-03 | 1978-03-24 | Yoshio Kouda | Device for grinding lens of glass and the like |
-
1988
- 1988-04-20 JP JP9571688A patent/JPH01271149A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4922509A (en) * | 1972-06-28 | 1974-02-28 | ||
| JPS5331294A (en) * | 1976-09-03 | 1978-03-24 | Yoshio Kouda | Device for grinding lens of glass and the like |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03161246A (en) * | 1989-11-17 | 1991-07-11 | Mitsubishi Heavy Ind Ltd | Correcting method for concentricity of opposed type machine tool |
| CN103447854A (en) * | 2013-09-02 | 2013-12-18 | 上海三一精机有限公司 | Workpiece automatic centering device and processing center |
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