JPH0192003A - Lead cam machine - Google Patents
Lead cam machineInfo
- Publication number
- JPH0192003A JPH0192003A JP24624387A JP24624387A JPH0192003A JP H0192003 A JPH0192003 A JP H0192003A JP 24624387 A JP24624387 A JP 24624387A JP 24624387 A JP24624387 A JP 24624387A JP H0192003 A JPH0192003 A JP H0192003A
- Authority
- JP
- Japan
- Prior art keywords
- main shaft
- cutting
- motor
- cutter
- axis direction
- 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
- 230000002706 hydrostatic effect Effects 0.000 claims description 11
- 230000003068 static effect Effects 0.000 abstract description 9
- 238000003754 machining Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Turning (AREA)
Abstract
Description
【発明の詳細な説明】 産業上の利用分野 この発明はリードカム加工用ＮＣ旋盤に関する。[Detailed description of the invention] Industrial applications The present invention relates to an NC lathe for machining lead cams.
従来技術
従来例えばビデオヘッド用部品の第７図に示すような下
ドラム外周のカムリード面及びビデオヘッド特許の微小
テーバを有するテープ走行面を切削するにはマスターカ
ムを使った専用機が使用されていたが、近年ＮＣリード
カム加工機が開発され使用されるようになった。このも
のは第８図に示すように主軸回転用モータのほかに主軸
割出用サーボモータ１０１を備え、クラッチ１０２によ
って主軸回転と主軸割出とを切り換えるようになってお
り、Ｚ軸方向に移動可能な往復台１０３上にＸ軸方向に
移動可能な刃物台１０４をｖｉ置し、刃物台１０４上に
リード加工ユニット１０５を取付けていた。Prior Art Conventionally, for example, a special machine using a master cam has been used to cut the cam lead surface on the outer periphery of the lower drum and the tape running surface with the minute taper of the video head patent, as shown in FIG. However, in recent years, NC lead cam processing machines have been developed and come into use. As shown in Fig. 8, this device is equipped with a servo motor 101 for indexing the main shaft in addition to a motor for rotating the main shaft, and is configured to switch between rotating the main shaft and indexing the main shaft using a clutch 102, and moves in the Z-axis direction. A tool rest 104 movable in the X-axis direction was placed on a reciprocating table 103, and a lead processing unit 105 was mounted on the tool rest 104.
そしてリード加工ユニットのバイトホルダ１０６はサー
ボモータ１０７によりポールナツトスクリュー１０８を
介してＺ軸方向に主軸割出しに合わせて往復運動するよ
うになっていた。The tool holder 106 of the lead processing unit is caused to reciprocate in the Z-axis direction by a servo motor 107 via a pole nut screw 108 in accordance with the indexing of the main spindle.
発明が解決しようとする問題点
従来のカム式専用機は製作及び修正に熟練を要し加工能
率が悪いという欠点を有していた。近年開発されたＮ
ＣＩＪ−ドカム加工機は製作、修正に要する熟練作業を
省略することはできたが、案内面がすべり軸受のため摺
動抵抗が大きく且つ移動体の惧性力が大きいので高速に
主軸の回転角に合わせて往復運動をする刃物の移動制御
を行うことができず、更に刃物の往復運動はサーボモー
タの回転方向の切換えによって行っていたので切り換え
が繁しくなるに従いモータの発熱量が大きくなり、高速
切削に支障がでてカム式専用機を上回る加工能率が得ら
れないという問題点を有していた。Problems to be Solved by the Invention Conventional cam-type dedicated machines have the drawback of requiring skill to manufacture and modify, resulting in poor processing efficiency. Recently developed N
The CIJ-Docam processing machine was able to omit the skilled work required for manufacturing and modification, but since the guide surface is a sliding bearing, the sliding resistance is large, and the force of the moving body is large, so the rotation angle of the main shaft can be adjusted at high speed. It was not possible to control the movement of the cutter, which makes reciprocating motion in accordance with The problem was that high-speed cutting was hindered, and machining efficiency higher than that of a cam-type dedicated machine could not be obtained.
問題点を解決するための手段
ベース１上に静圧軸受を介してＸ軸方向に移動可能に設
けられた主軸台５と、該主軸台５の第１駆動部材と、前
記主軸台に回転可能に軸承された主軸６と、該主軸６の
回転及び割出しを行う第２駆動部材と、前記ベース１上
に静圧軸受を介してＸ軸方向に移動可能に設けられた刃
物台１１と該刃物台１１の第３駆動部材と前記刃物台１
１上に設けられ静圧軸受を介してＸ軸方向に移動可能な
スライドスリーブ１８先端にバイトホルダ２８を有する
リード加工ユニット１５と、前記スライドスリーブ１８
を駆動するリニアモータ２０と、前記Ｚ軸駆動部材及び
前記リニアモータ２０を制御するＮＣ装置を含んでなる
ものである。Means for Solving the Problems A headstock 5 provided on the base 1 so as to be movable in the X-axis direction via a hydrostatic bearing, a first driving member of the headstock 5, and a rotatable member of the headstock 5. A main shaft 6 supported by a main shaft 6, a second driving member for rotating and indexing the main shaft 6, a tool rest 11 provided on the base 1 so as to be movable in the X-axis direction via a hydrostatic bearing, and a second driving member for rotating and indexing the main shaft 6; The third driving member of the turret 11 and the turret 1
1, a lead processing unit 15 having a cutting tool holder 28 at the tip of a slide sleeve 18 which is movable in the X-axis direction via a hydrostatic bearing; and the slide sleeve 18.
This includes a linear motor 20 that drives the Z-axis drive member and an NC device that controls the Z-axis drive member and the linear motor 20.
実施例 以下本発明の実施例を図・面にもとづき説明する。Example Embodiments of the present invention will be described below based on the drawings and surfaces.
第１図、第２図に示すようにベース１上の左側にＸ軸方
向の案内面２ａを有するＺ軸固定台２が固着され、Ｚ軸
固定台２上に静圧軸受を介して主軸下台３が移動可能に
載置され、Ｚ軸サーボモーフ４により図示しないボルト
ナンドスクリューを介して移動及び位置決めが行われる
。更に主軸下台３上に主軸台５が固着され、主軸台５に
は複数の軸受けにより回転可能に主軸６が軸承され、主
軸６の先端に外径把持用のコレットチャック７が取付け
られている。そして主軸台には主軸６の回転及び割出し
を行うビルトインモータ及び主軸６の旋回角度を検出し
てＮＣに出力するパルス発生器８が内蔵されている。As shown in FIGS. 1 and 2, a Z-axis fixing base 2 having a guide surface 2a in the X-axis direction is fixed to the left side of the base 1, and a main spindle lower base is mounted on the Z-axis fixing base 2 via a hydrostatic bearing. 3 is movably mounted, and movement and positioning are performed by the Z-axis servomorph 4 via a bolt nand screw (not shown). Furthermore, a headstock 5 is fixed on the lower headstock 3, a main spindle 6 is rotatably supported on the headstock 5 by a plurality of bearings, and a collet chuck 7 for gripping the outer diameter is attached to the tip of the main spindle 6. The headstock has a built-in motor that rotates and indexes the spindle 6 and a pulse generator 8 that detects the rotation angle of the spindle 6 and outputs it to the NC.
ベース１上の右側にＸ軸方向の案内面１０ａを有するＸ
軸固定台１０が固着され、Ｘ軸固定台上に静圧軸受けを
介して刃物台１１が移動可能に載置され、刃物台１１は
Ｘ軸サーボモータ１２により図示しない、ホルトナツト
スクリューを介して移動及び位置決めが行われ、刃物台
１１の上面に設けられた複数のＴ溝を有する取付面１１
ａにカバー１４で覆われたリード加工ユニット１５が取
付けられている。X having a guide surface 10a in the X-axis direction on the right side of the base 1
A shaft fixed base 10 is fixed, and a tool rest 11 is movably mounted on the X-axis fixed base via a static pressure bearing.The tool rest 11 is moved by an X-axis servo motor 12 via a bolt nut screw (not shown) A mounting surface 11 that is moved and positioned and has a plurality of T grooves provided on the top surface of the tool rest 11.
A lead processing unit 15 covered with a cover 14 is attached to a.
リード加工ユニット１５のユニット本体１６は第３図〜
第５図に示すように取付面ｌｌａ上にＸ軸方向に位１１
１節可能に取付けられ、案内面が４５″傾斜するＸ軸方
向の角形ガイド１６ａを有している。そして角形ガイド
１６ａに静圧ポケット１６ｂが該設され、ユニット本体
１６の側面に固着された固定絞りユニット１３を通って
減圧された圧油が静圧ポケソｌ−１６ｂ内に供給される
ようになっている。更にユニット本体１６の上面は両端
にフランジ部１６Ｃ，１６ｄを肴し中央の平面１６ｅに
は角形ガイド１６ａの上部が開口しており、平面１６ｅ
上に角穴を有する上板１７が固着され、角形ガイド１６
ａ内に中空のスライドスリーブ１８が静圧軸受を介して
がたなく円滑に移動可能に嵌挿されている。ユニット本
体１６の右端面１６ｆに取付台１９を介してコイル移動
形のリニアモータ２０が固着され、リニアモータの可動
部２０ａの先端は継手２１を介してスライドスリーブ１
８の後室に固着されており、リニアモータ２０によって
スライドスリーブ１８が駆動される。更にスライドスリ
ーブ１８の上面１８ａに上板１７の角穴を貫通する取付
板２４が固着され、上板１７上の左側に固着された位置
検出用リニアスケール２５は取付板２４上に固着されス
ライドスリーブ１８とともに移動する移動部２５ａによ
って検出信号をＮＣに出力する。更に上板１７上の右側
に固着された速度検出用のりニアセンサ２６は、取付板
２４に連結金具２７を介して固着された可動部２６ａに
よって検出信号をＮＣに出力する。更にスライドアーム
１８の先端にバイトホルダ２８が固着され、バイトホル
ダ２８にバイト２９が着脱可能に装着されている。尚ユ
ニット本体のスライドスリーブ移動用の角形ガイドは４
５″の傾斜案内面に限定されるものではなく、第６図の
ように水平及び垂直案内面を有する角形ガイドにするこ
とも可能である。The unit body 16 of the lead processing unit 15 is shown in Fig. 3~
11 in the X-axis direction on the mounting surface lla as shown in Figure 5.
It has a rectangular guide 16a in the X-axis direction that is attached so that it can be articulated and has a guide surface inclined by 45 inches.A static pressure pocket 16b is provided in the rectangular guide 16a and is fixed to the side surface of the unit main body 16. Pressurized oil is supplied into the static pressure pump l-16b through the fixed throttle unit 13.Furthermore, the upper surface of the unit body 16 has flange portions 16C and 16d at both ends, and a flat surface in the center. The upper part of the rectangular guide 16a is open at 16e, and the flat surface 16e
A top plate 17 having a square hole is fixed thereon, and a square guide 16 is fixed thereto.
A hollow slide sleeve 18 is fitted into the inside of the slide sleeve 18 via a hydrostatic bearing so as to be able to move smoothly without any play. A coil-moving linear motor 20 is fixed to the right end surface 16f of the unit body 16 via a mounting base 19, and the tip of the movable part 20a of the linear motor is connected to the slide sleeve 1 via a joint 21.
8, and the slide sleeve 18 is driven by a linear motor 20. Further, a mounting plate 24 that passes through a square hole in the upper plate 17 is fixed to the upper surface 18a of the slide sleeve 18, and a position detection linear scale 25 fixed to the left side of the upper plate 17 is fixed to the mounting plate 24 and attached to the slide sleeve. A detection signal is output to the NC by the moving part 25a that moves together with the detection signal 18. Further, a speed detection linear sensor 26 fixed to the right side of the upper plate 17 outputs a detection signal to the NC by means of a movable part 26a fixed to the mounting plate 24 via a connecting fitting 27. Further, a cutting tool holder 28 is fixed to the tip of the slide arm 18, and a cutting tool 29 is removably attached to the cutting tool holder 28. There are 4 square guides for moving the slide sleeve of the unit body.
The present invention is not limited to a 5" inclined guide surface, but a rectangular guide having horizontal and vertical guide surfaces as shown in FIG. 6 is also possible.
作用
今生軸６先端のコレットチャック７に工作物が把持され
、リード加工ユニット１５のバイトホルダ２８にバイト
２９が装着されて、カム切削が開始されようとしている
。A workpiece is gripped by the collet chuck 7 at the tip of the production shaft 6, the cutting tool 29 is attached to the cutting tool holder 28 of the lead processing unit 15, and cam cutting is about to begin.
Ｚ軸サーボモータ４が回転されて静圧軸受を介してＺ軸
固定台２上に移動可能に載置された主軸台５がＸ軸方向
に移動し、同時にＸ軸サーボモータ１２が回転されて静
圧軸受を介してＸ軸固定台１０上に移動可能に載置され
た刃物台１１がＸ軸方向に移動して切削開始位置に位置
決めされ、ビルトインモータによって主軸６が回転し、
パルス発生器８により主軸の回転角がＮＣに出力される
。When the Z-axis servo motor 4 is rotated, the headstock 5 movably mounted on the Z-axis fixed base 2 is moved in the X-axis direction via a static pressure bearing, and at the same time, the X-axis servo motor 12 is rotated. The tool post 11, which is movably placed on the X-axis fixed base 10 via a static pressure bearing, moves in the X-axis direction and is positioned at the cutting start position, and the main shaft 6 is rotated by the built-in motor.
The pulse generator 8 outputs the rotation angle of the main shaft to the NC.
そしてリード加工ユニット１５のリニアモータ２０に通
電されて可動部２０ａが直線移動し、継手２１を介して
スライドスリーブ１日が移動し、スライドスリーブ１８
上に取付板２４を介して固着された移動部２５ａが移動
してリニアスケール２５から位置信号がＮＣに出力しさ
れる。この位置信号とパルス発生器８の主軸割出信号か
ら、主軸回転角に対するスライドスリーブ１８の位置が
ＮＣプログラムに記録された所定の関係を保って駆動さ
れ、スライドスリーブ１８は所定振幅の往復運動を繰り
返す、そしてスライドスリーブ１８の移動速度はリニア
センサ２６の出力信号によって所定の速度に制御される
。Then, the linear motor 20 of the lead processing unit 15 is energized to move the movable part 20a linearly, and the slide sleeve 18 is moved via the joint 21.
The moving part 25a fixed to the top via the mounting plate 24 moves, and a position signal is output from the linear scale 25 to the NC. Based on this position signal and the spindle indexing signal of the pulse generator 8, the position of the slide sleeve 18 with respect to the rotation angle of the spindle is driven while maintaining a predetermined relationship recorded in the NC program, and the slide sleeve 18 performs a reciprocating motion with a predetermined amplitude. This is repeated, and the moving speed of the slide sleeve 18 is controlled to a predetermined speed by the output signal of the linear sensor 26.
続いて主軸台５の２軸方向の切削送りと、刃物台１１の
Ｘ軸方向の微小移動が同時に行われて、スライドスリー
ブ先端のバイト２Ｂによって工作物のテープ走行面の微
小テーパ及びカムリード面の切削加工が行われる。切削
が終わると刃物台１１のＸ軸方向の移動及び主軸台５の
Ｘ軸方向の移動で所定の工作物着脱位置に位置決めされ
、工作物の着脱が行われて再び前述の動作で加工が繰り
返される。Next, the cutting feed of the headstock 5 in the biaxial directions and the minute movement of the tool post 11 in the X-axis direction are performed simultaneously, and the cutting tool 2B at the tip of the slide sleeve creates a minute taper on the tape running surface of the workpiece and a cam lead surface. Cutting is performed. When cutting is finished, the tool rest 11 is moved in the X-axis direction and the headstock 5 is moved in the X-axis direction to position the workpiece at a predetermined workpiece attachment/detachment position, and the workpiece is attached and detached, and the machining is repeated again with the above-mentioned operations. It will be done.
効果
以上詳述したように本発明は主軸の回転及び割出しを行
うビルトインモータを内蔵する主軸台を静圧軸受を介し
てＸ軸方向に移動位置決め可能に設け、刃物台を静圧軸
受を介してＸ軸方向に移動位置決め可能に設け、刃物台
上に静圧軸受を介してＸ軸方向に移動可能なスライドス
リーブ先端にバイトホルダを有するリード加工ユニット
を設け、スライドスリーブを主軸の回転角に合わせてリ
ニアモータによって駆動するようになしたので、静圧軸
受と移動体の軽量化によりステイクスリップの無い微小
移動が可能となり、更に高速な往復運動に対しても発熱
の少ないリニアモータの採用により高精度なカム切削及
び微小テーパ切削を高速で行うことができるようになり
、加工能率が向上する効果を有する。Effects As detailed above, the present invention provides a headstock that incorporates a built-in motor that rotates and indexes the main spindle so that it can be moved and positioned in the X-axis direction via a hydrostatic bearing, and a tool rest that is movable and positioned in the X-axis direction via a hydrostatic bearing. A lead processing unit is provided on the tool rest with a tool holder at the tip of the slide sleeve that can be moved in the X-axis direction via a hydrostatic bearing, and the slide sleeve is moved to the rotation angle of the main shaft. In addition, since it is driven by a linear motor, the static pressure bearing and the weight of the moving body are reduced, making it possible to perform minute movements without stake slip.Furthermore, by using a linear motor that generates less heat even during high-speed reciprocating motion, High-precision cam cutting and minute taper cutting can now be performed at high speed, which has the effect of improving machining efficiency.
第１図は本発明のリードカム加工機の上面図、第２図は
本発明のリードカム加工機の側面図、第３図はリード加
工ユニットの正面図、第４図はリード加工ユニットの上
面図、第５図はリード加工ユニットの側面図、第６図は
角形ガイドを水平及び垂直案内面としたリード加工ユニ
ットの側面図、第７図は工作物の斜視図、第８図は従来
技術の説明図である。
１・・ベース ５・・主軸台
６・・主軸 １１・・刃物台
１８・・スライドスリーブFIG. 1 is a top view of the lead cam processing machine of the present invention, FIG. 2 is a side view of the lead cam processing machine of the present invention, FIG. 3 is a front view of the lead processing unit, and FIG. 4 is a top view of the lead processing unit. Fig. 5 is a side view of the lead processing unit, Fig. 6 is a side view of the lead processing unit with square guides as horizontal and vertical guide surfaces, Fig. 7 is a perspective view of the workpiece, and Fig. 8 is an explanation of the prior art. It is a diagram. 1... Base 5... Headstock 6... Main spindle 11... Turret 18... Slide sleeve
Claims (1)
に設けられた主軸台と、該主軸台の第１駆動部材と、前
記主軸台に回転可能に軸承された主軸と、該主軸の回転
及び割出しを行う第２駆動部材と、前記ベース上に静圧
軸受を介してＸ軸方向に移動可能に設けられた刃物台と
該刃物台の第３駆動部材と前記刃物台上に設けられ静圧
軸受を介してＺ軸方向に移動可能なスライドスリーブ先
端にバイトホルダを有するリード加工ユニットと、前記
スライドスリーブを駆動するリニアモータと、前記各軸
駆動部材及び前記リニアモータを制御するＮＣ装置を含
んでなるリードカム加工機。(1) A headstock provided on a base so as to be movable in the Z-axis direction via a hydrostatic bearing, a first driving member of the headstock, a main shaft rotatably supported by the headstock; a second driving member that rotates and indexes the main shaft, a tool rest provided on the base so as to be movable in the X-axis direction via a hydrostatic bearing, a third driving member of the tool rest, and a top of the tool rest. a lead processing unit having a cutting tool holder at the tip of a slide sleeve that is disposed in and movable in the Z-axis direction via a hydrostatic bearing, a linear motor that drives the slide sleeve, and controls each of the shaft drive members and the linear motor. A lead cam processing machine that includes an NC device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24624387A JPH0192003A (en) | 1987-09-30 | 1987-09-30 | Lead cam machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24624387A JPH0192003A (en) | 1987-09-30 | 1987-09-30 | Lead cam machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0192003A true JPH0192003A (en) | 1989-04-11 |
Family
ID=17145634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24624387A Pending JPH0192003A (en) | 1987-09-30 | 1987-09-30 | Lead cam machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0192003A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0373202A (en) * | 1989-08-14 | 1991-03-28 | Seibu Electric & Mach Co Ltd | Lead machining tool slide device and nc lead machining device using the same tool slide device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822601A (en) * | 1981-07-23 | 1983-02-10 | Matsushita Electric Ind Co Ltd | Lead surface machining device |
| JPS59110503A (en) * | 1982-12-14 | 1984-06-26 | Toyoda Mach Works Ltd | Machining device for turning operation |
| JPS6244353A (en) * | 1985-05-07 | 1987-02-26 | ザ・クロス・カンパニ− | Calculator numerical value control lathe |
-
1987
- 1987-09-30 JP JP24624387A patent/JPH0192003A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5822601A (en) * | 1981-07-23 | 1983-02-10 | Matsushita Electric Ind Co Ltd | Lead surface machining device |
| JPS59110503A (en) * | 1982-12-14 | 1984-06-26 | Toyoda Mach Works Ltd | Machining device for turning operation |
| JPS6244353A (en) * | 1985-05-07 | 1987-02-26 | ザ・クロス・カンパニ− | Calculator numerical value control lathe |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0373202A (en) * | 1989-08-14 | 1991-03-28 | Seibu Electric & Mach Co Ltd | Lead machining tool slide device and nc lead machining device using the same tool slide device |
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