JPH0150539B2 - - Google Patents
Info
- Publication number
- JPH0150539B2 JPH0150539B2 JP7757385A JP7757385A JPH0150539B2 JP H0150539 B2 JPH0150539 B2 JP H0150539B2 JP 7757385 A JP7757385 A JP 7757385A JP 7757385 A JP7757385 A JP 7757385A JP H0150539 B2 JPH0150539 B2 JP H0150539B2
- Authority
- JP
- Japan
- Prior art keywords
- proximity switch
- machining head
- switch
- workpiece
- machine tool
- 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
- 238000001514 detection method Methods 0.000 claims description 19
- 238000003754 machining Methods 0.000 claims description 19
- 230000005291 magnetic effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000003302 ferromagnetic material Substances 0.000 claims description 5
- 241000282472 Canis lupus familiaris Species 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 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
- 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
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
-
- 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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、主としてアルミ製ワークの加工に用
いられる工作機械における加工ヘツドの位置検出
装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a processing head position detection device in a machine tool used mainly for processing aluminum workpieces.
（従来の技術）
従来この種装置として、実開昭57−126950号公
報により、ワーク側に進退自在の加工ヘツドを備
える工作機械の機台に、該加工ヘツドに取付けた
鉄等の強磁性体から成るドツグと協働する磁気形
近接スイツチを設け、該近接スイツチからの信号
により該加工ヘツドの加工開始位置や加工完了位
置等への移動を検出するようにしたものは知られ
る。(Prior art) As a conventional device of this type, according to Japanese Utility Model Application Publication No. 57-126950, a ferromagnetic material such as iron is attached to a machine tool base equipped with a machining head that can move forward and backward on the workpiece side. It is known that a magnetic proximity switch is provided which cooperates with a dog consisting of a magnetic head, and the movement of the machining head to a machining start position, a machining completion position, etc. is detected based on a signal from the proximity switch.
（本発明が解決しようとする問題点）
磁気形近接スイツチは、鉄等の強磁性体だけで
なく、アルミニウム等の正磁性体や、銅等の逆磁
性体にも反応するもので、該スイツチで検出可能
な距離、即ち検出距離は、例えば鉄に対して５mm
の場合、アルミニウムで２mm程度となる。(Problems to be Solved by the Invention) Magnetic proximity switches react not only to ferromagnetic materials such as iron, but also to positive magnetic materials such as aluminum and reverse magnetic materials such as copper. The detectable distance, that is, the detection distance is, for example, 5 mm for iron.
In the case of aluminum, it is about 2 mm.
従つて、アルミ製のワークであつても、その切
屑が近接スイツチの検出端に付着すると、該スイ
ツチから加工ヘツドのドツグがその近傍に来たと
きと同様の信号が出力され、加工ヘツドの正確な
位置検出を行い得なくなる。 Therefore, even if the workpiece is made of aluminum, if chips from the workpiece adhere to the detection end of the proximity switch, the switch will output the same signal as when the dog of the machining head comes close to it, and the accuracy of the machining head will be increased. position detection becomes impossible.
本発明は、かかる問題点を解決し、切屑の付着
によるも近接スイツチの誤動作を生じないように
した装置を提供することをその目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to solve this problem and provide a device which prevents the proximity switch from malfunctioning due to the adhesion of chips.
（問題点を解決するための手段）
本発明は、上記目的を達成すべく、ワーク側に
進退自在の加工ヘツドを備える工作機械の機台
に、該加工ヘツドに取付けた強磁性体から成るド
ツグと協働する磁気形近接スイツチを設けるもの
において、該近接スイツチの検出端に、ワーク材
料に対する該近接スイツチの検出距離よりも肉厚
の厚い該近接スイツチが反応しない材質のカバー
を被着したことを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a machine tool base equipped with a machining head that can move forward and backward on the workpiece side, and a dog made of a ferromagnetic material attached to the machining head. In a device equipped with a magnetic type proximity switch that cooperates with a workpiece, the detection end of the proximity switch is covered with a cover made of a material that is thicker than the detection distance of the proximity switch with respect to the workpiece material and does not react to the proximity switch. It is characterized by
（作用）
本発明によれば、アルミニウム等の強磁性体で
ないワークの加工に際し、その切屑が近接スイツ
チ側に飛散しても、該スイツチの検出端に被着し
たカバーにより切屑の該検出端に対する検出距離
以内への近接が防止され、かくて切屑による該ス
イツチの誤動作を生じない。(Function) According to the present invention, even if chips are scattered toward the proximity switch when processing a workpiece that is not a ferromagnetic material such as aluminum, the cover attached to the detection end of the switch prevents the chips from being directed to the detection end. This prevents the switch from coming within the detection distance, thus preventing the switch from malfunctioning due to chips.
（実施例）
本発明の実施例を図示のものに付説明する。図
面はヘツド交換式工作機械に本発明装置を適用し
た実施例を示し、第１図乃至第４図を参照して、
１は工作機械の機台、２はその前方のワークセツ
ト治具であり、該機台１上に前後動自在のスライ
ドテーブル３を介して駆動ユニツト４を設けると
共に、該ユニツト４の周囲に加工ヘツド５の複数
台を配置して、その任意の１台を該ユニツト４の
前方位置に選択自在とし、この選択された加工ヘ
ツド５を第３図示の如く該ユニツト４の前進でこ
れに結合させて前進させ、該治具２上のアルミニ
ウム製エンジンブロツク等から成るワークｗに所
定の加工を施すようにした。(Example) An example of the present invention will be described with reference to the drawings. The drawings show an embodiment in which the device of the present invention is applied to an exchangeable head machine tool, and with reference to FIGS. 1 to 4,
Reference numeral 1 denotes a machine tool base, and 2 a work setting jig in front of the machine tool. A plurality of heads 5 are arranged so that any one of them can be selected at a position in front of the unit 4, and the selected machining head 5 is coupled to it by advancing the unit 4 as shown in the third figure. The jig 2 was moved forward, and a predetermined process was performed on the workpiece w, which was made of an aluminum engine block and the like, placed on the jig 2.
そして、加工ヘツド５の加工開始位置や送り速
度や加工完了位置を検出すべく、各加工ヘツド５
の側面にドツグブレート６を介して強磁性体たる
鉄製のドツグ７を上下３段に配置すると共に、前
記機台１の前端側部に立設した支持板８にこれら
各ドツグ７と協働する磁気形近接スイツチ９を上
下３段に配置するものとし、即ち該各ドツグ７の
進退軌跡の外側に第５図に明示するように該各近
接スイツチ９の検出端９ａを鉄に対する該スイツ
チ９の検出距離（５mm程度）以下の例えば４mm程
度の間〓を存して臨ませ、かくて加工ヘツド５
の前進で該各ドツグ７が該各近接スイツチ９の配
置位置に前進したとき、該各近接スイツチ９がこ
れを検知して作動されるようにした。 Then, in order to detect the machining start position, feed rate, and machining completion position of the machining head 5, each machining head 5
Ferromagnetic iron dogs 7 are arranged in three stages (upper and lower) on the side surface of the machine via a dog brate 6, and a support plate 8, which is erected on the front end side of the machine base 1, is provided with a magnetic field that cooperates with each of these dogs 7. The type proximity switches 9 are arranged in three stages (upper and lower), that is, the detection end 9a of each proximity switch 9 is placed outside the forward and backward locus of each dog 7 as shown in FIG. The machining head 5 is placed at a distance of less than 5 mm, for example, about 4 mm.
When each dog 7 moves forward to the position where each proximity switch 9 is placed, each proximity switch 9 detects this and is activated.
ここで該各近接スイツチ９の検出端９ａには、
本発明の特徴とするところに従い、ワーク材料例
えばアルミニウムに対する該スイツチ９の検出距
離（２mm程度）よりも厚い、例えば2.5mm程度の
肉厚ｔのカバー10を被着するものとし、又該カバ
ー１０の材質は該スイツチ９が反応しない合成樹
脂等の非磁性材料とするもので、かくてこれによ
れば、切屑が該スイツチ９側に飛散して該カバー
１０に付着しても、該スイツチ９がこの切屑に反
応して検知作動するようなことはない。 Here, at the detection end 9a of each proximity switch 9,
According to the characteristics of the present invention, a cover 10 having a wall thickness t, for example, about 2.5 mm, which is thicker than the detection distance (about 2 mm) of the switch 9 with respect to the work material, for example, aluminum, is attached. The material of the switch 9 is made of a non-magnetic material such as a synthetic resin that does not react with the switch 9. Accordingly, even if chips are scattered to the switch 9 side and adhere to the cover 10, the switch 9 will not react. There is no possibility that the detection will be activated in response to this chip.
尚、該カバー１０をテフロン製のものとすれ
ば、切屑が付着しにくくなり有利である。 If the cover 10 is made of Teflon, it is advantageous because chips are less likely to adhere to it.
（発明の効果）
この様に本発明によるときは、ワークの切屑に
よる近接スイツチの誤動作が防止され、加工ヘツ
ドに取付けたドツグと該スイツチとの協働による
正確な位置検出を行い得られ、而もその構造は該
スイツチの検出端にカバーを被着するだけで足
り、コスト的にも有利である効果を有する。(Effects of the Invention) As described above, according to the present invention, malfunction of the proximity switch due to chips from the workpiece is prevented, and accurate position detection is achieved through cooperation between the dog attached to the machining head and the switch. This structure is advantageous in terms of cost since it is sufficient to simply cover the detection end of the switch.
第１図は本発明装置を具備する工作機械の１例
の一部を截除した側面図、第２図はその原理的な
平面図、第３図は加工ヘツドの前進時の概略側面
図、第４図はその正面図、第５図はその要部の拡
大正面図である。
ｗ……ワーク、１……機台、５……加工ヘツ
ド、７……ドツグ、９……近接スイツチ、９ａ…
…検出端、１０……カバー。
FIG. 1 is a partially cutaway side view of an example of a machine tool equipped with the device of the present invention, FIG. 2 is a basic plan view thereof, and FIG. 3 is a schematic side view of the machining head when it moves forward. FIG. 4 is a front view thereof, and FIG. 5 is an enlarged front view of its main parts. w... Workpiece, 1... Machine base, 5... Processing head, 7... Dog, 9... Proximity switch, 9a...
...Detection end, 10...Cover.
Claims (1)
作機械の機台に、該加工ヘツドに取付けた強磁性
体から成るドツグと協働する磁気形近接スイツチ
を設けるものにおいて、該近接スイツチの検出端
に、ワーク材料に対する該近接スイツチの検出距
離よりも肉厚の厚い該近接スイツチが反応しない
材質のカバーを被着したことを特徴とする工作機
械における加工ヘツドの位置検出装置。1. In a machine tool base equipped with a machining head that can move forward and backward on the workpiece side, a magnetic proximity switch that cooperates with a dog made of ferromagnetic material attached to the machining head is installed, and the detection end of the proximity switch A position detection device for a machining head in a machine tool, characterized in that the proximity switch is covered with a cover made of a non-reactive material, the thickness of which is thicker than the detection distance of the proximity switch with respect to the workpiece material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7757385A JPS61236453A (en) | 1985-04-13 | 1985-04-13 | Processing head position detection device for machine tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7757385A JPS61236453A (en) | 1985-04-13 | 1985-04-13 | Processing head position detection device for machine tools |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61236453A JPS61236453A (en) | 1986-10-21 |
| JPH0150539B2 true JPH0150539B2 (en) | 1989-10-30 |
Family
ID=13637744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7757385A Granted JPS61236453A (en) | 1985-04-13 | 1985-04-13 | Processing head position detection device for machine tools |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61236453A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015226299A1 (en) * | 2015-12-21 | 2017-06-22 | Weeke Bohrsysteme Gmbh | processing device |
-
1985
- 1985-04-13 JP JP7757385A patent/JPS61236453A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61236453A (en) | 1986-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |