JPH0112621B2 - - Google Patents
Info
- Publication number
- JPH0112621B2 JPH0112621B2 JP58139784A JP13978483A JPH0112621B2 JP H0112621 B2 JPH0112621 B2 JP H0112621B2 JP 58139784 A JP58139784 A JP 58139784A JP 13978483 A JP13978483 A JP 13978483A JP H0112621 B2 JPH0112621 B2 JP H0112621B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- air
- hole
- tool
- cylinder
- 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
- 238000007664 blowing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/0009—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
- B23Q1/0018—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means
- B23Q1/0027—Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts comprising hydraulic means between moving parts between which an uninterrupted energy-transfer connection is maintained
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
- B23Q11/005—Devices for removing chips by blowing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Description
【発明の詳細な説明】
技術分野
本発明はマシニングセンタなどにおける工具を
嵌着させる主軸テーパ穴及び加工物を清掃するエ
アブローのためのエア供給装置に関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an air supply device for air blowing to clean a main shaft taper hole into which a tool is fitted and a workpiece in a machining center or the like.
従来技術
従来マシニングセンタにおいて一般に自動工具
交換装置(ATC)によつて工具を交換するとき
は主軸の工具装着面の塵埃、油膜を取除き清掃す
るためにエアブロー装置が付属される。また工作
物のタツプ下穴にタツプ立てなどを行なう等の必
要から穴内の切粉を取除くためのエアブロー装置
が付属されるが、エアブロー工具は通常の工具と
ともにマガジンに収納されており、ATCで主軸
に装着されたときにエア源と接続される。この接
続のため工具の側方に連結管が突出し、主軸側に
は供給管部が設けられていて圧力源からの配管が
なされる。また主軸側の圧力供給と、工具側の圧
力供給とは別配管で行なわれ、それぞれに電磁切
換弁を設けている。このためにATCにおける工
具交換アームマガジンの収納部での干渉が問題と
なり取扱い並びに設計上不都合がある。Prior Art Conventionally, when a tool is changed using an automatic tool changer (ATC) in a conventional machining center, an air blow device is attached to remove dust and oil film from the tool mounting surface of the spindle. In addition, an air blow device is included to remove chips from the hole when tapping a pilot hole on a workpiece, etc., but the air blow tool is stored in a magazine along with regular tools, and is used in ATC. Connected to the air source when attached to the main shaft. For this connection, a connecting pipe protrudes from the side of the tool, and a supply pipe section is provided on the main shaft side for piping from a pressure source. Furthermore, the pressure supply to the spindle side and the pressure supply to the tool side are carried out through separate piping, and each is provided with an electromagnetic switching valve. For this reason, interference in the storage section of the tool exchange arm magazine in the ATC becomes a problem and is inconvenient in terms of handling and design.
目 的
従つて本発明は上記に鑑みなされたもので両方
のエアブロー用のエア供給源を1本として、エア
ブロー工具の干渉部をなくし主軸に別配管をする
必要をなくし電磁切換弁を1個としてまとまりの
良いエア供給装置を提供しようとするものであ
る。Purpose: Therefore, the present invention has been made in view of the above, and it uses a single air supply source for both air blows, eliminates the interference part of the air blow tool, eliminates the need for separate piping to the main shaft, and uses a single electromagnetic switching valve. The purpose is to provide a well-organized air supply device.
解決手段
エアブロー工具及び引張り棒には中心に貫通し
てエア穴を設け引張り棒を押して工具をアンクラ
ンプする油圧ピストンのロツドに貫通穴を設ける
とともにこのロツド端に1個の電磁切換弁で圧力
源と接続されるエアシリンダを取付け、これに嵌
装したピストンのロツドにエア穴を貫設して油圧
シリンダのロツドの穴に挿通してシリンダに圧力
空気が送られたときピストンの移動でその先端が
引張り棒と当接してエア穴を連通させ、このとき
のシリンダ室内のエア圧力が所定値以上になつた
とき開くチエツクバルブをピストンに内蔵したも
のである。Solution: An air hole is provided in the center of the air blow tool and the tension rod, and a through hole is provided in the rod of the hydraulic piston that pushes the tension rod to unclamp the tool.A pressure source is provided at the end of the rod using a single electromagnetic switching valve. Attach an air cylinder to be connected to the cylinder, and insert an air hole through the rod of the piston fitted into the cylinder, and insert it into the hole of the rod of the hydraulic cylinder. When pressurized air is sent to the cylinder, the tip of the piston will be The piston has a check valve built into the piston that opens when the air pressure in the cylinder chamber reaches a predetermined value or more when the piston comes into contact with the tension rod and communicates with the air hole.
実施例
以下本発明の実施例の図面にもとづき説明す
る。マシニングセンタの主軸頭に摺動可能の主軸
スリーブ1に回転可能に軸承せられた主軸2には
周知のように先端部に工具を装着すテーパ穴2
a、つゞいてコレツトを作用させるに必要なぬす
み2b、傾斜段部2c、ストレート穴2d、引張
り用皿ばね6の収納穴2f及び段部2eを有する
貫通穴が穿設されている。テーパ穴2aに装着さ
れる工具はマガジンに収納されておりATCで交
換されるが、タツプ下穴の切粉を吹きとばす細い
ノズル3aを先端に有するもの、或いは工作物上
の切粉を清掃するノズル3aを有するエアブロー
工具3もATC把持用の溝3bを有し普通の工具
と同じテーパシヤンク3cとプルスタツド3dを
有し、中心にエア穴3eが貫通され通常はマガジ
ンに収納されている。主軸2のストレート穴2d
には周知のコレツト4が収納され元部において引
張り棒5の先端の顎部5aと係止し先のフツクは
工具のプルスタツド3dと係止する。穴2fには
数十枚の皿ばね6が収納され引張り棒5先端のね
じ部5bに固着されているばね受け7と段部2e
との間に圧縮状態におかれていて常時引張り棒5
をコレツト締め上げ方向に付勢している。この引
張り棒5には中心を貫通してエア穴5cが穿設さ
ればね受け7側端面は急角度のテーパ穴5dとな
つている。主軸スリーブ1の上端にはシリンダ筒
8が固着されており、シリンダ8aにピストン9
が嵌装されている。ピストン9の中心にはシリン
ダ筒8の両壁を貫通した中空のロツド10が固定
されており、押し棒として働き油路8b,8cに
選択的に圧油が送られたときロツド10の端面が
引張り棒5を押して工具をアンクランプとするが
通常は引張り棒5とは離れた状態にある。このロ
ツド10の突出端にエアシリンダ11がねじによ
つて固着されていて、シリンダ11aにピストン
12が嵌装されている。そしてピストンの片側に
貫通したエア穴13aを穿設したロツド管13が
ロツド10の穴10a内に摺動可能に挿通され、
その先端部は引張り棒5の先端テーパ穴5dと嵌
合するテーパ13bを有し、ピストン12が工具
側に押されたときロツド管13は引張り棒と圧接
し両テーパ面が接合される。ピストン12は介挿
したばね14によつてロツド管13が引張り棒と
当接しないように付勢されており、またばね14
の力より強いばね15で所定圧力以上で開口する
ように常時閉口され弁胴部には外周軸方向にエア
溝16aを削設したチエツクバルブ16が内蔵さ
れている。このチエツクバルブ16が開口すると
ロツド13のエア穴13aとシリンダ室とが連通
される。そして流路11bが電磁切換弁17を介
して圧力空気源と接続されている。Embodiments Hereinafter, embodiments of the present invention will be explained based on the drawings. The main shaft 2 is rotatably supported on a main shaft sleeve 1 that can slide on the main shaft head of a machining center, and the main shaft 2 has a tapered hole 2 at the tip of which a tool is attached, as is well known.
(a) A through hole is drilled which has a clearance 2b necessary for the action of the collet, an inclined stepped portion 2c, a straight hole 2d, a housing hole 2f for the tension plate spring 6, and a stepped portion 2e. The tool installed in the taper hole 2a is stored in a magazine and replaced at ATC, but the tool has a thin nozzle 3a at the tip to blow away the chips from the tap pilot hole, or to clean the chips on the workpiece. The air blow tool 3 having a nozzle 3a also has a groove 3b for gripping the ATC, and has the same taper shank 3c and pull stud 3d as a normal tool, has an air hole 3e in the center, and is normally stored in a magazine. Straight hole 2d of main shaft 2
A known collet 4 is housed in the collet 4, and its base engages with the jaw 5a at the tip of the pull rod 5, and the hook at the end engages with the pull stud 3d of the tool. Several dozen disc springs 6 are housed in the hole 2f, and the spring receiver 7 and the stepped portion 2e are fixed to the threaded portion 5b at the tip of the tension rod 5.
The tension rod 5 is kept in a compressed state between
is biased in the direction of tightening the collet. An air hole 5c is bored through the center of the tension rod 5, and the end surface on the side of the spring receiver 7 is formed into a steeply tapered hole 5d. A cylinder tube 8 is fixed to the upper end of the main shaft sleeve 1, and a piston 9 is attached to the cylinder 8a.
is fitted. A hollow rod 10, which penetrates both walls of the cylinder tube 8, is fixed at the center of the piston 9. It acts as a push rod, and when pressurized oil is selectively sent to the oil passages 8b and 8c, the end face of the rod 10 is fixed. The tool is unclamped by pushing the pull rod 5, which is normally separated from the pull rod 5. An air cylinder 11 is fixed to the protruding end of the rod 10 with a screw, and a piston 12 is fitted into the cylinder 11a. Then, a rod pipe 13 having an air hole 13a penetrating one side of the piston is slidably inserted into the hole 10a of the rod 10.
Its tip has a taper 13b that fits into the tapered hole 5d at the tip of the tension rod 5, and when the piston 12 is pushed toward the tool, the rod tube 13 comes into pressure contact with the tension rod and both tapered surfaces are joined. The piston 12 is biased by a spring 14 inserted therein so that the rod tube 13 does not come into contact with the tension rod.
A check valve 16 is built into the valve body, which is always closed so as to open at a predetermined pressure or higher by a spring 15 stronger than the force of the check valve 15, and has an air groove 16a cut in the direction of the outer circumferential axis. When the check valve 16 opens, the air hole 13a of the rod 13 and the cylinder chamber communicate with each other. The flow path 11b is connected to a pressure air source via an electromagnetic switching valve 17.
次に作用について説明する。工具交換が指令さ
れるとマガジンから指定工具がATCで搬送され
工具交換位置で図示しないATCのアームが工具
をもつて工具交換位置に位置すると油圧シリンダ
8の油路8bに圧油が送られてピストン9のロツ
ド10が引張り棒5をばね6の力に抗して押しコ
レツト4を開口する。そしてアームが主軸の工具
を抜き新工具を主軸線と一致させると電磁切換弁
17が作用してエアシリンダ11に圧力エアが送
られる。ピストン12が押されロツド管13の先
端13bは引張り棒5のテーパ穴5dに圧接され
エア穴13a,5cが連通する。ピストン12が
止められシリンダ室のエア圧力が上昇して所定値
に達すると、チエツクバルブ16が開きエアはエ
ア穴13a,5cを通つてコレツト5の隙間から
噴出する。アームが工具を主軸に装入するとテー
パ面2aと工具シヤンクとの隙間が徐々にせばま
り隙間から強い力で噴出して塵埃を吹きとばし嵌
着寸前で圧力は更に上昇して充分な清掃が行なわ
れるものである。次いでタツプ下穴の清掃指令や
出されるとエアブロー工具3が装着され、テーパ
面2aの清掃が同様に行なわれるが工具3のエア
穴3eから逃げるエアのため圧が減少して普通工
具のような充分な清掃は困難であるけれども加工
精度に影響されないので特に問題はない。エアブ
ロー工具3が装着されると電磁切換弁17が作用
し圧力エアの供給を停止し油圧シリンダの油路8
bが排出側に8cが圧力側に切換えられピストン
9とともにロツド10が引張り棒5から離され
る。引張り棒5がばね6の力で引かれコレツト4
がプルスタツド3dを引いてエアブロー工具を嵌
着すると主軸2が位置制御されてエアブロー工具
3のノズル3aがタツプ下穴に挿入される。そこ
で電磁切換弁17が作用し圧力エアがエアシリン
ダ11に送られる。ピストン12が押されロツド
管13のテーパ面13bが引張り棒5のテーパ穴
5dに圧接されシリンダ室のエア圧が上昇し所定
値でチエツクバルブ16が開口してエアはエア穴
13a,5cを経てノズル3aより噴出され切粉
を吹きとばして清掃できるものである。 Next, the effect will be explained. When a tool change is commanded, the designated tool is transferred from the magazine by the ATC, and when the arm of the ATC (not shown) moves to the tool change position holding the tool, pressure oil is sent to the oil path 8b of the hydraulic cylinder 8. The rod 10 of the piston 9 pushes the pull rod 5 against the force of the spring 6 to open the collet 4. Then, when the arm removes the tool from the main axis and aligns a new tool with the main axis, the electromagnetic switching valve 17 operates and pressurized air is sent to the air cylinder 11. When the piston 12 is pushed, the tip 13b of the rod tube 13 comes into pressure contact with the tapered hole 5d of the tension rod 5, and the air holes 13a and 5c communicate with each other. When the piston 12 is stopped and the air pressure in the cylinder chamber increases and reaches a predetermined value, the check valve 16 is opened and air is ejected from the gap in the collector 5 through the air holes 13a and 5c. When the arm inserts the tool into the spindle, the gap between the tapered surface 2a and the tool shank gradually narrows, and the tool is ejected from the gap with strong force, blowing away dust, and just before the tool is fitted, the pressure increases further to perform sufficient cleaning. It is something that can be done. Next, when a command to clean the tap pilot hole is issued, the air blow tool 3 is attached and the taper surface 2a is cleaned in the same way, but the pressure decreases due to the air escaping from the air hole 3e of the tool 3, making it similar to a normal tool. Although thorough cleaning is difficult, there is no particular problem since it is not affected by processing accuracy. When the air blow tool 3 is attached, the electromagnetic switching valve 17 acts to stop the supply of pressure air and the oil passage 8 of the hydraulic cylinder is activated.
b is switched to the discharge side and 8c is switched to the pressure side, and the rod 10 together with the piston 9 is separated from the tension rod 5. The tension rod 5 is pulled by the force of the spring 6 and the collection 4
When the operator pulls the pull stud 3d to fit the air blow tool, the position of the main shaft 2 is controlled and the nozzle 3a of the air blow tool 3 is inserted into the tap pilot hole. Thereupon, the electromagnetic switching valve 17 acts and pressurized air is sent to the air cylinder 11. The piston 12 is pushed, the tapered surface 13b of the rod tube 13 is pressed against the tapered hole 5d of the tension rod 5, the air pressure in the cylinder chamber rises, the check valve 16 opens at a predetermined value, and the air passes through the air holes 13a and 5c. It is sprayed from the nozzle 3a and can be cleaned by blowing off the chips.
効 果
以上詳述したように本発明は工具着脱用シリン
ダのピストンロツドにエアシリンダを取付け、こ
れに嵌装するピストンにチエツクバルブを内蔵し
エア穴を有するエアシリンダのピストンロツドを
工具着脱用シリンダのピストンロツドの中心を貫
通して引張り棒に当接可能とし引張り棒のエア穴
と連通させうるようになしロツドと引張り棒との
当接によりシリンダ室の圧力上昇でチエツクバル
ブを開口するようになしたので、エアブロー工具
には中心に貫通したエア穴を穿設するのみでよく
簡単な構造とすることができ、また連結管を突設
しないので交換アーム等と干渉する不都合を解消
することができる。更にエアブロー工具との接続
配管がなくなりすつきりしたものになるとともに
エア供給路が一本となつて電磁切換弁も1個に減
少できてコストダウンに寄与するものである。Effects As detailed above, the present invention attaches an air cylinder to the piston rod of the cylinder for attaching and detaching tools, and the piston fitted into the air cylinder has a built-in check valve, and the piston rod of the air cylinder having an air hole is connected to the piston rod of the cylinder for attaching and detaching tools. It penetrates through the center of the rod so that it can come into contact with the tension rod, and communicates with the air hole of the tension rod.When the rod comes into contact with the tension rod, the pressure in the cylinder chamber increases, opening the check valve. The air blow tool can have a simple structure by simply drilling an air hole passing through the center, and since no connecting pipe is provided protruding, the inconvenience of interference with the exchange arm etc. can be eliminated. Furthermore, there is no need for any piping to connect to the air blow tool, making the system simpler, and since there is only one air supply path, the number of electromagnetic switching valves can be reduced to one, contributing to cost reduction.
第1図は本発明の縦断面図である。
3…エアブロー工具、5…引張り棒、8…工具
着脱用シリンダ、9…ピストン、10…ロツド、
11…エアシリンダ、12…ピストン、13…ロ
ツド管、16…チエツクバルブ、17…電磁切換
弁。
FIG. 1 is a longitudinal sectional view of the present invention. 3...Air blow tool, 5...Tension rod, 8...Cylinder for attaching/detaching tool, 9...Piston, 10...Rod,
11... Air cylinder, 12... Piston, 13... Rod pipe, 16... Check valve, 17... Solenoid switching valve.
Claims (1)
にエアブロー用エア供給装置において、工具のア
ンクランプ時に引張り棒のエア供給穴と接続する
貫通穴を有する第1ロツドと一体の第1ピストン
を嵌装した工具着脱用油圧シリンダ機構と、前記
第1ロツドの突出端に取付けられたエアシリンダ
と、該エアシリンダに嵌装され前記第1ロツドの
貫通穴に摺動可能に挿通されるとともに前記引張
り棒に当接しうる長さに形成され中心にエア供給
穴を貫通した第2ロツドを有し常時は当接しない
ように付勢された第2ピストンと、該第2ピスト
ンに内蔵され前記エアシリンダに圧力エアがおく
られたとき該第2ピストンの移動で前記第2ロツ
ドが引張り棒に当接してシリンダ室のエア圧力が
所定値に上昇したとき開口して前記第2ロツドの
エア穴とシリンダ室とを連通するチエツクバルブ
とを含んでなるエア供給装置。1. In an air supply device for main spindle taper hole cleaning and air blowing of machining centers, etc., for attaching and detaching tools, the first piston is fitted with a first rod having a through hole that connects to the air supply hole of the pull rod when unclamping the tool. a hydraulic cylinder mechanism, an air cylinder attached to the protruding end of the first rod, the air cylinder being fitted into the air cylinder and slidably inserted into the through hole of the first rod, and capable of abutting the tension rod. a second piston, which has a second rod formed in a long length and penetrates an air supply hole in the center, and is biased so as not to come into contact with each other at all times; When the second piston moves, the second rod comes into contact with the tension rod, and when the air pressure in the cylinder chamber rises to a predetermined value, it opens to communicate the air hole of the second rod with the cylinder chamber. An air supply device comprising a check valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58139784A JPS6034244A (en) | 1983-07-30 | 1983-07-30 | Air supply device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58139784A JPS6034244A (en) | 1983-07-30 | 1983-07-30 | Air supply device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6034244A JPS6034244A (en) | 1985-02-21 |
JPH0112621B2 true JPH0112621B2 (en) | 1989-03-01 |
Family
ID=15253341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58139784A Granted JPS6034244A (en) | 1983-07-30 | 1983-07-30 | Air supply device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6034244A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0267156B1 (en) * | 1986-11-04 | 1994-12-07 | Fritz Krüsi Maschinenbau | Apparatus for working wooden work pieces, in particular wooden beams |
JPS63212438A (en) * | 1987-02-24 | 1988-09-05 | Sanyo Mach Works Ltd | Automatic tool replacement device |
DE29520427U1 (en) * | 1995-12-22 | 1996-02-08 | Deckel Maho Gmbh | Spindle unit for machine tools |
JPH10118881A (en) * | 1996-10-21 | 1998-05-12 | Sabun Kogyosho:Kk | Air blow tool for machine tool |
CN104338953B (en) * | 2014-09-29 | 2016-08-17 | 江西江铃底盘股份有限公司 | Rise core fixture and the method for clear bits of the most clear a kind of bits |
CN112589532B (en) * | 2020-12-03 | 2022-02-22 | 深圳市速锋科技股份有限公司 | Machine tool spindle and cutter tightness detection device |
-
1983
- 1983-07-30 JP JP58139784A patent/JPS6034244A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6034244A (en) | 1985-02-21 |
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