JPH0426197Y2 - - Google Patents
Info
- Publication number
- JPH0426197Y2 JPH0426197Y2 JP1987002241U JP224187U JPH0426197Y2 JP H0426197 Y2 JPH0426197 Y2 JP H0426197Y2 JP 1987002241 U JP1987002241 U JP 1987002241U JP 224187 U JP224187 U JP 224187U JP H0426197 Y2 JPH0426197 Y2 JP H0426197Y2
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- main shaft
- air
- seal
- holder
- 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.)
- Expired
Links
- 238000007789 sealing Methods 0.000 claims description 32
- 238000009434 installation Methods 0.000 claims description 8
- 238000012790 confirmation Methods 0.000 claims description 4
- 238000003754 machining Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Machine Tool Sensing Apparatuses (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、旋盤等の工作機械の主軸に被加工物
が適正に取付けられているか否かを確認する被加
工物の取付確認装置に関するものである。[Detailed description of the invention] (Field of industrial application) The present invention relates to a workpiece attachment confirmation device that checks whether the workpiece is properly attached to the spindle of a machine tool such as a lathe. It is.
（従来技術）
従来、工作機械の加工位置において被加工物が
適正状態で取付けられているか否かを確認するた
め、空気供給源に連通する空気供給通路から被加
工物の壁面に取付状態確認用の空気を吹付けると
ともに、上記空気供給通路内の空気圧の上昇状態
を検出することにより、被加工物が空気供給通路
の先端開口部に密着した適正取付状態にあるか否
かを検出することが行なわれている（例えば実開
昭58−117323号公報）。ところで旋盤等の回転駆
動される主軸に被加工物が取付けられるように構
成された工作機械において上記検出手段を設けた
場合、上記主軸と、この主軸を回転自在に支持す
るホルダとの間隙部から上記空気が外部に漏出す
るのを防止するために、Ｏリング等のシール部材
を上記間隙部に設ける必要があり、このシール部
材がシール面に接触した状態で上記主軸が回転す
るので、加工時に主軸の発熱およびシール部材の
早期摩耗等が生じるという問題があつた。(Prior art) Conventionally, in order to check whether the workpiece is installed in the proper state at the machining position of a machine tool, an air supply passage communicating with an air supply source is attached to the wall of the workpiece for checking the installation state. By blowing the air and detecting the increase in air pressure in the air supply passage, it is possible to detect whether or not the workpiece is properly mounted in close contact with the tip opening of the air supply passage. (For example, Japanese Utility Model Application Publication No. 58-117323). By the way, when the above-mentioned detection means is provided in a machine tool such as a lathe, which is configured so that a workpiece is attached to a rotatably driven main shaft, the detection means is detected from the gap between the main shaft and the holder that rotatably supports the main shaft. In order to prevent the air from leaking outside, it is necessary to provide a sealing member such as an O-ring in the gap, and since the main shaft rotates with this sealing member in contact with the sealing surface, during machining There were problems such as heat generation in the main shaft and premature wear of the sealing member.
（考案の目的）
本考案は、上記問題点を解決するためになされ
たものであり、主軸の発熱およびシール部材の早
期摩耗等を生じることなく、回転駆動される主軸
に取付けられた被加工物の取付状態の適否を確認
することができる被加工物の取付確認装置を提供
するものである。(Purpose of the invention) The present invention was made to solve the above-mentioned problems, and is a workpiece that can be mounted on a rotationally driven spindle without causing heat generation of the spindle or premature wear of the sealing member. An object of the present invention is to provide a workpiece attachment confirmation device that can confirm whether or not the attachment condition of a workpiece is appropriate.
（考案の構成）
本考案は、被加工物が取付けられる主軸と、こ
の主軸を囲繞するホルダとを備え、上記主軸に被
加工物が適正に取付けられているか否かを確認す
る被加工物の取付確認装置であつて、上記ホルダ
から主軸を経て被加工物の壁面に取付状態確認用
の空気を供給する空気流通路と、上記主軸とこの
主軸を囲繞するホルダとの間に形成された密閉空
間部内において上記空気流通路をシールするシー
ル部材と、上記空気流通路内の空気圧を検出する
とともにこの空気圧に応じて被加工物の取付状態
の適否を判別する判別手段とを備え、上記空間部
内には、主軸の軸方向にスライド自在に支持さ
れ、上記シール部材に圧接されたシール位置と、
このシール部材から離間したシール解除位置との
間で変位するピストンが設けられたものである。(Structure of the invention) The present invention includes a main shaft to which a workpiece is attached, a holder surrounding the main shaft, and a workpiece for checking whether or not the workpiece is properly attached to the main spindle. The installation confirmation device includes an air flow path that supplies air for checking the installation state from the holder to the wall surface of the workpiece via the main shaft, and a seal formed between the main shaft and a holder surrounding the main shaft. A sealing member for sealing the air flow passage within the space, and a determining means for detecting air pressure within the air flow passage and determining whether or not the mounting state of the workpiece is appropriate according to this air pressure, a seal position that is slidably supported in the axial direction of the main shaft and is pressed against the seal member;
A piston is provided that is displaced between a seal release position and a seal release position spaced apart from the seal member.
上記の構成によれば、主軸が回転状態にある場
合にはピストンをシール解除位置に設定してシー
ル部材をシール面から離間させることにより、シ
ール部材の摩耗等が防止され、主軸が停止状態に
ある場合にはピストンをシール位置に設定してシ
ール部材をシール面に圧接させることにより、空
気流通路の気密性が確保されることとなる。 According to the above configuration, when the main shaft is in a rotating state, by setting the piston to the seal release position and separating the seal member from the sealing surface, wear of the seal member, etc. is prevented, and the main shaft is in a stopped state. In some cases, by setting the piston to the sealing position and pressing the sealing member against the sealing surface, the airtightness of the airflow passage is ensured.
（実施例）
第１図は、先端部に歯車等の被加工物１を保持
するコレツトチヤツク２が設けられた主軸３と、
この主軸３をベアリング４等を介して回転自在に
支持するホルダ５とを示している。上記主軸３
は、図外の駆動モータにより回転駆動される駆動
軸６と、この駆動軸６に外嵌されて固定されたカ
ラー７，８，９，１０とを備えている。また、上
記ホルダ５は、主軸３を囲繞する外筒１１，１
２，１３等からなり、このホルダ５と上記主軸３
との間にはピストン１４が軸方向にスライド可能
に支持されている。このピストン１４は、Ｏリン
グ等のシール部材２５によりホルダ５の外筒１
１，１２に機密状態で支持されている。(Example) Fig. 1 shows a main shaft 3 provided with a collect chuck 2 for holding a workpiece 1 such as a gear at its tip;
A holder 5 that rotatably supports the main shaft 3 via a bearing 4 or the like is shown. Main shaft 3 above
includes a drive shaft 6 that is rotationally driven by a drive motor (not shown), and collars 7, 8, 9, and 10 that are fitted onto and fixed to the drive shaft 6. Further, the holder 5 has outer cylinders 11 and 1 surrounding the main shaft 3.
2, 13, etc., and this holder 5 and the main shaft 3
A piston 14 is supported so as to be slidable in the axial direction. This piston 14 is connected to the outer cylinder 1 of the holder 5 by a sealing member 25 such as an O-ring.
1 and 12 are supported in a confidential manner.
上記ホルダ５の外筒１２およびピストン１４に
はエアポンプ等からなる図外の空気供給源に連通
する空気流通路１５が形成され、この空気流通路
１５は主軸３のカラー８，９，１０を貫通し、主
軸先端部に取付けられた被加工物１の後部壁面に
当接する位置まで伸びている。また、主軸３のカ
ラー８の外周面と、ホルダー５の外筒１２の内周
面との間に形成された密閉空間部内には、上記空
気流通路１５の気密性を保持するためのＯリング
等からなる一対のシール部１６，１７が配設され
ている。そして、このシール部材１６，１７によ
つて主軸３とホルダ５との間の空気流通路１５を
シールした状態で図外の空気供給源から取付状態
確認用空気を導入し、この空気流通路１５内の空
気圧を検出するとともにこの空気圧を所定の基準
値と比較することにより、被加工物１が主軸３に
適正に取付けられているか否かを判別手段１８に
おいて判別するように構成されている。 An air flow passage 15 is formed in the outer cylinder 12 and piston 14 of the holder 5 and communicates with an air supply source (not shown) such as an air pump. However, it extends to a position where it comes into contact with the rear wall surface of the workpiece 1 attached to the tip of the spindle. Further, in the sealed space formed between the outer circumferential surface of the collar 8 of the main shaft 3 and the inner circumferential surface of the outer cylinder 12 of the holder 5, an O-ring is provided to maintain the airtightness of the air flow passage 15. A pair of seal portions 16 and 17 are provided. Then, with the air flow passage 15 between the main shaft 3 and the holder 5 sealed by the seal members 16 and 17, air for checking the installation state is introduced from an air supply source (not shown), and the air flow passage 15 is sealed by the seal members 16 and 17. The determining means 18 is configured to determine whether or not the workpiece 1 is properly attached to the main shaft 3 by detecting the air pressure inside and comparing this air pressure with a predetermined reference value.
すなわち、被加工物１の取付状態が不適正であ
ると、被加工物１の後部壁面と、主軸３のカラー
１０の先端面との間に隙間が形成され、この隙間
から上記空気流通路１５内の空気が漏出するた
め、空気流通路１５内の空気圧が低くなる。これ
に対して被加工物１の取付状態が適正であると、
被加工物１の後端面と上記カラー１０の先端面と
が密着して上記空気の漏出が防止され、空気流通
路１５内の空気圧が高くなるため、この空気圧に
応じて被加工物１の取付状態の適否を判別するこ
とができる。 That is, if the mounting state of the workpiece 1 is inappropriate, a gap is formed between the rear wall surface of the workpiece 1 and the tip end surface of the collar 10 of the main shaft 3, and from this gap the air flow passage 15 Since the air inside leaks out, the air pressure inside the air flow passage 15 becomes low. On the other hand, if the mounting state of the workpiece 1 is appropriate,
The rear end surface of the workpiece 1 and the front end surface of the collar 10 are in close contact with each other to prevent the air from leaking, and the air pressure in the air flow passage 15 is increased. It is possible to determine whether the condition is appropriate or not.
また、上記ピストン１４は、外筒１１，１２に
形成されたシール用空気通路１９およびシール解
除用空気通路２０から導入される駆動用空気によ
り、上記シール部材１６，１７に当接してこれを
主軸３に圧接させたシール位置と、このシール部
材１６，１７から離間してシール部材１６，１７
を上記圧接状態から開放したシール解除位置との
間でスライド変位するように構成されている。 Further, the piston 14 is brought into contact with the seal members 16 and 17 by the driving air introduced from the sealing air passage 19 and the seal release air passage 20 formed in the outer cylinders 11 and 12, and is moved to the main axis. 3, and the sealing members 16, 17 spaced apart from the sealing members 16, 17.
The sealing member is configured to be slidably displaced between the press-contact state and the seal release position.
すなわち、上記被加工物１の取付状態の判別時
には、第２図に示すように、図外の空気供給源か
らシール用空気通路１９内に駆動用空気を導入し
てピストン１４を図中左方にスライド変位させる
ように駆動力を付与し、このピストン１４の段部
２１，２２とカラー８の鍔部２３，２４とでシー
ル部材１６，１７を挟圧した状態に設定すること
により、上記シール部材１６，１７のシール機能
を発揮させる。そして、上記被加工物１の加工時
には、第３図に示すように、上記シール用空気通
路１９に対する空気の供給を停止させた後、シー
ル解除用空気通路２０内に駆動用空気を導入して
ピストン１４を図中右方にスライド変位させるこ
とにより、ピストン１４の段部２１，２２とカラ
ー８の鍔部２３，２４とによるシール部材１６，
１７の挟圧状態を解除するように構成されてい
る。 That is, when determining the mounting state of the workpiece 1, as shown in FIG. 2, driving air is introduced into the sealing air passage 19 from an air supply source not shown, and the piston 14 is moved to the left in the figure. By applying a driving force to slide the piston 14 and setting the seal members 16, 17 in a pinched state between the stepped portions 21, 22 of the piston 14 and the collar portions 23, 24 of the collar 8, the seals 16, 17 are pressed. The sealing function of the members 16 and 17 is demonstrated. When processing the workpiece 1, as shown in FIG. 3, after stopping the supply of air to the sealing air passage 19, driving air is introduced into the seal release air passage 20. By sliding the piston 14 to the right in the figure, the sealing member 16 formed by the stepped portions 21 and 22 of the piston 14 and the collar portions 23 and 24 of the collar 8,
17 is configured to release the pinched state.
このように上記主軸３とホルダ５との間に設け
たピストン１４によりシール部材１６，１７をシ
ール状態とシール解除状態とに設定可能に構成し
たため、被加工物の取付状態判別時には、主軸３
とホルダ５との間隙部をシールするシール状態に
上記シール部材１６，１７を設定することによ
り、上記空気流通路１５の気密性を保持すること
ができる。また、被加工物１の加工時には、上記
シール部材１６，１７を上記ピストン１４の段部
２１，２２もしくはカラー８の鍔部２３，２４よ
りなるシール面から離間させたシール解除状態に
設定することにより、主軸３が回転する際に上記
シール面とシール部材１６，１７との間に過度の
摩擦力が生じるのを防止することができる。 Since the seal members 16 and 17 can be set to the sealed state and the unsealed state by the piston 14 provided between the main shaft 3 and the holder 5, when determining the installation state of the workpiece, the main shaft 3
By setting the seal members 16 and 17 in a sealed state that seals the gap between the air flow passage 15 and the holder 5, the airtightness of the air flow passage 15 can be maintained. Further, when processing the workpiece 1, the seal members 16 and 17 are set in a sealed release state in which they are separated from the seal surface formed by the stepped portions 21 and 22 of the piston 14 or the collar portions 23 and 24 of the collar 8. This can prevent excessive frictional force from being generated between the sealing surface and the sealing members 16 and 17 when the main shaft 3 rotates.
なお、上記実施例ではピストン１４を複動式と
するために二つの駆動用空気通路１９，２０を設
けているが、この両通路１９，２０のうちシール
解除用空気通路２０を省略してピストンを単動式
に構成してもよい。 In the above embodiment, two drive air passages 19 and 20 are provided in order to make the piston 14 a double-acting type, but of these two passages 19 and 20, the seal release air passage 20 is omitted and the piston 14 is of a double-acting type. may be configured as a single-acting type.
（考案の効果）
以上説明したように本考案は、被加工物が取付
けられる主軸と、この主軸を回転自在に支持する
ホルダとの間に設けられたピストンにより、上記
主軸とホルダとの間に配設された空気流通路シー
ル用のシール部材をシール状態とシール解除状態
とに設定できるように構成したため、被加工物の
取付状態判別時には上記ピストンによりシール部
材をシール状態に設定して空気流通路の気密性を
保持することができ、また被加工物の加工時には
上記ピストンによりシール部材をシール解除状態
に設定して主軸およびホルダのシール面からシー
ル部材を離間させることができる。(Effects of the invention) As explained above, the present invention has a piston provided between the main shaft on which the workpiece is attached and the holder that rotatably supports the main shaft, and the piston between the main shaft and the holder. The sealing member for sealing the air flow path is configured so that it can be set to a sealed state or a unsealed state, so when determining the installation state of the workpiece, the piston sets the sealing member to the sealed state and the air flow is controlled. The airtightness of the passage can be maintained, and when processing a workpiece, the seal member can be set in a seal release state by the piston, and the seal member can be separated from the seal surfaces of the main shaft and the holder.
したがつて、上記取付状態判別時には、空気流
通路内に供給された取付状態確認用空気が主軸と
ホルダとの間隙部から外部に漏出するのを防止
し、上記空気の圧力に応じて被加工物の取付状態
の適否を正確に判別することができるとともに、
上記加工時には主軸の回転によりシール部材と上
記シール面との間に過度の摩擦力が生じるのを防
止でき、主軸が発熱したりシール部材が早期に摩
耗したりするのを効果的に防ぐことができる。ま
た、上記シール部材およびピストンを主軸とホル
ダとの間に形成された密閉空間部内に配設したた
め、上記被加工部の加工時に発生する切粉が上記
シール部材等に付着するのを効果的に防止するこ
とができる。さらに、上記ピストンを上記密閉空
間部内において主軸の軸方向にスライド自在に設
置したため、上記主軸とホルダとの間に形成され
たシール部の全周に配設されたシール部材を上記
ピストンによつてシール位置に押動してシール面
に圧接させることにより、上記主軸とホルダとの
間をその全周に亘つて確実にシールすることがで
きるという利点がある。 Therefore, when determining the mounting state, the air for checking the mounting state supplied into the air flow path is prevented from leaking outside from the gap between the spindle and the holder, and the workpiece is controlled according to the pressure of the air. It is possible to accurately determine whether the installation condition of objects is appropriate, and
During the above processing, it is possible to prevent excessive frictional force from being generated between the sealing member and the sealing surface due to the rotation of the main shaft, and it is possible to effectively prevent the main shaft from generating heat and the sealing member from wearing out prematurely. can. In addition, since the seal member and piston are arranged in the sealed space formed between the main shaft and the holder, chips generated during machining of the workpiece are effectively prevented from adhering to the seal member, etc. It can be prevented. Furthermore, since the piston is installed to be slidable in the axial direction of the main shaft within the sealed space, the piston can close the seal member disposed around the entire circumference of the seal formed between the main shaft and the holder. By pushing the main shaft to the sealing position and bringing it into pressure contact with the sealing surface, there is an advantage that the space between the main shaft and the holder can be reliably sealed over the entire circumference.
第１図は本考案の実施例を示す断面図、第２図
はピストンがシール位置にある状態を示す断面
図、第３図はピストンがシール解除位置にある状
態を示す断面図である。
１……被加工物、３……主軸、５……ホルダ、
１４……ピストン、１５……空気流通路、１６，
１７……シール部材、１８……判別手段。
FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view showing the piston in the sealing position, and FIG. 3 is a sectional view showing the piston in the seal release position. 1...Workpiece, 3...Spindle, 5...Holder,
14... Piston, 15... Air flow passage, 16,
17... Seal member, 18... Discrimination means.
Claims (1)
繞するホルダとを備え、上記主軸に被加工物が適
正に取付けられているか否かを確認する被加工物
の取付確認装置であつて、上記ホルダから主軸を
経て被加工物の壁面に取付状態確認用の空気を供
給する空気流通路と、上記主軸とこの主軸を囲繞
するホルダとの間に形成された密閉空間部内にお
いて上記空気流通路をシールするシール部材と、
上記空気流通路内の空気圧を検出するとともにこ
の空気圧に応じて被加工物の取付状態の適否を判
別する判別手段とを備え、上記空間部内には、主
軸の軸方向にスライド自在に支持され、上記シー
ル部材に圧接されたシール位置と、このシール部
材から離間したシール解除位置との間で変位する
ピストンが設けられたことを特徴とする被加工物
の取付確認装置。 A workpiece attachment confirmation device comprising a spindle to which a workpiece is attached and a holder surrounding the spindle, the device for confirming whether or not the workpiece is properly attached to the spindle, the holder comprising: an air flow passage that supplies air for checking the installation status from the main shaft to the wall surface of the workpiece; and the air flow passage is sealed in a sealed space formed between the main shaft and a holder surrounding the main shaft. a sealing member,
a determining means for detecting the air pressure in the air flow passage and determining whether or not the mounting state of the workpiece is appropriate according to the air pressure; A device for confirming attachment of a workpiece, characterized in that a piston is provided that is displaced between a seal position where the seal member is pressed against the seal member and a seal release position where the seal member is spaced apart from the seal member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987002241U JPH0426197Y2 (en) | 1987-01-09 | 1987-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987002241U JPH0426197Y2 (en) | 1987-01-09 | 1987-01-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63110350U JPS63110350U (en) | 1988-07-15 |
| JPH0426197Y2 true JPH0426197Y2 (en) | 1992-06-24 |
Family
ID=30780897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987002241U Expired JPH0426197Y2 (en) | 1987-01-09 | 1987-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426197Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6363421B2 (en) * | 2014-07-31 | 2018-07-25 | アズビルＴａｃｏ株式会社 | Work seating determination method and apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60161008A (en) * | 1984-01-28 | 1985-08-22 | エスエムヴエー シユナイダー ウント ヴアイスハウプト ゲゼルシヤフト ミト ベシユレンクテル ハフツング | Device for monitoring state of operation of power chuck |
-
1987
- 1987-01-09 JP JP1987002241U patent/JPH0426197Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60161008A (en) * | 1984-01-28 | 1985-08-22 | エスエムヴエー シユナイダー ウント ヴアイスハウプト ゲゼルシヤフト ミト ベシユレンクテル ハフツング | Device for monitoring state of operation of power chuck |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63110350U (en) | 1988-07-15 |
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