JPS64161B2 - - Google Patents
Info
- Publication number
- JPS64161B2 JPS64161B2 JP58239543A JP23954383A JPS64161B2 JP S64161 B2 JPS64161 B2 JP S64161B2 JP 58239543 A JP58239543 A JP 58239543A JP 23954383 A JP23954383 A JP 23954383A JP S64161 B2 JPS64161 B2 JP S64161B2
- Authority
- JP
- Japan
- Prior art keywords
- sliding
- main shaft
- thrust
- workpiece
- tapered surface
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/4006—Gripping the work or tool by a split sleeve
- B23B31/4033—Gripping the work or tool by a split sleeve using mechanical transmission through the spindle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は内径用コレツトチヤツク装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an internal diameter collect chuck device.
従来、この種のコレツトチヤツク装置として一
般に第4図のものが知られており、この構造は、
工作機械の主軸51に取付部材52を取着し、こ
の取付部材52の前面に締付ナツト53でコレツ
ト部材54を取着し、このコレツト部材54の内
周面に推力部材55をコレツト部材54の軸方向
に進退摺動可能に貫挿嵌合し、該推力部材55の
前端部に前方に向かつて先細りの雄テーパ面56
を形成し、該雄テーパ面56に嵌合する雌テーパ
面57を前記コレツト部材54の内周面に形成
し、このコレツト部材54の外周面にワークWを
貫挿し、前記推力部材55の前進摺動によつて前
記コレツト部材54を拡張し、前記ワークWを外
側締着するように構成されたものである。
Conventionally, the one shown in Fig. 4 is generally known as this type of collect chuck device, and this structure is as follows:
A mounting member 52 is attached to the main shaft 51 of the machine tool, a collet member 54 is attached to the front surface of the mounting member 52 with a tightening nut 53, and a thrust member 55 is attached to the inner peripheral surface of the collet member 54. A male tapered surface 56 is fitted through the thrust member 55 so as to be slidable forward and backward in the axial direction thereof, and is tapered toward the front end of the thrust member 55.
A female tapered surface 57 that fits into the male tapered surface 56 is formed on the inner circumferential surface of the collect member 54, and the workpiece W is inserted into the outer circumferential surface of the collect member 54 so that the thrust member 55 moves forward. The collet member 54 is expanded by sliding and the workpiece W is tightened on the outside.
しかしこの構造は前記推力部材55がいわゆる
軸受部58より突出している片持ち構造であるこ
と等からワークWに掛かる切削力及び遠心力等に
よつてワークWの加工精度が低下するおそれがあ
る。 However, since this structure has a cantilevered structure in which the thrust member 55 protrudes from the so-called bearing portion 58, there is a risk that the machining accuracy of the workpiece W may be reduced due to cutting force, centrifugal force, etc. applied to the workpiece W.
この推力部材55の片持ち構造による心振れを
抑制するため実開昭55−21840号公報の如き第5
図の構造のものが知られている。 In order to suppress the vibration due to the cantilevered structure of the thrust member 55, a fifth
The structure shown in the figure is known.
すなわち、主軸61に取付部材62を取着し、
主軸61を貫通して工作機械のシリンダ機構(図
示省略)によつて主軸61の軸方向に進退移動さ
れる推力部材63を設け、取付部材62の前面中
央部に支持軸部材64を主軸61中心と同心に突
出形成し、支持軸部材64の外周面に先細り雄テ
ーパ面65を形成するとともに支持軸部材64の
外周面に、内周面に雄テーパ面65と嵌合する雌
テーパ面66を有するコレツト部材67を摺動可
能に嵌合し、支持軸部材64の中心に推力部材6
3を貫通してその先端部とコレツト部材67とを
係合し、前記取付部材62の前面にワーク当接面
68を形成して構成されている。 That is, attaching the mounting member 62 to the main shaft 61,
A thrust member 63 is provided that penetrates the main shaft 61 and is moved forward and backward in the axial direction of the main shaft 61 by a cylinder mechanism (not shown) of the machine tool, and a support shaft member 64 is provided at the center of the front surface of the mounting member 62, with the support shaft member 64 centered on the main shaft 61. A tapered male tapered surface 65 is formed on the outer peripheral surface of the support shaft member 64, and a female tapered surface 66 is formed on the outer peripheral surface of the support shaft member 64 to fit with the male tapered surface 65 on the inner peripheral surface. The thrust member 67 is slidably fitted into the support shaft member 64, and the thrust member 67 is
3 and engages the tip thereof with a collet member 67, and a work contacting surface 68 is formed on the front surface of the mounting member 62.
しかして推力部材63を引動するとコレツト部
材67は支持軸部材64上を主軸61に向かつて
引動され、雄テーパ面65と雌テーパ面66との
テーパ作用によりコレツト部材67は拡張し、ワ
ークW内周面を締圧することになる。 When the thrust member 63 is pulled, the collet member 67 is pulled toward the main shaft 61 on the support shaft member 64, and the collet member 67 expands due to the taper action of the male taper surface 65 and the female taper surface 66, and moves into the workpiece W. The surrounding surface will be compressed.
しかしながらこの従来構造の場合ワーク締圧時
においてコレツト部材67が軸方向に摺動するた
め、ワークに軸方向の力を与え、ワークWとワー
ク当接面68との当接位置Pに押圧力が生じ、こ
の押圧力により薄肉のワークの場合にはワークW
の変形が生ずるおそれがあるという不都合を有し
ている。
However, in this conventional structure, since the collet member 67 slides in the axial direction when the workpiece is clamped, an axial force is applied to the workpiece, and a pressing force is applied to the contact position P between the workpiece W and the workpiece contact surface 68. When the workpiece is thin, the workpiece W
This has the disadvantage that deformation may occur.
本発明はこれらの不都合を解決することを目的
とするもので、その要旨は、第1図乃至第3図の
添付図面につき説明すると、工作機械1の主軸2
に取着される取付部材3と;該主軸2を貫通し、
前記工作機械1のシリンダ機構4によつて該主軸
2の軸方向に進退移動される推力部材5と;前記
取付部材3の前面中央部に突出形成され、前記主
軸2中心と同心の支持軸部材6と;該支持軸部材
6の外周面に摺動可能に装着され、外周面に前方
に向つて先細りの雄テーパ面7を形成した摺動部
材8と;前記取付部材3の前面外周部に突出取着
され、内周面に前記雄テーパ面7と嵌合する雌テ
ーパ面9を有し、外周面でワークWを貫通外側締
着し得るコレツト部材10と;前記推力部材5と
前記摺動部材8とを連結するスラスト伝達部材1
1と;を備えてなるコレツトチヤツク装置にあ
る。
The purpose of the present invention is to solve these inconveniences, and the gist thereof will be explained with reference to the attached drawings of FIGS. 1 to 3.
a mounting member 3 attached to; passing through the main shaft 2;
a thrust member 5 that is moved forward and backward in the axial direction of the main shaft 2 by the cylinder mechanism 4 of the machine tool 1; a support shaft member that is formed protruding from the center of the front surface of the mounting member 3 and is concentric with the center of the main shaft 2; 6; a sliding member 8 which is slidably attached to the outer circumferential surface of the support shaft member 6 and has a male tapered surface 7 tapered forward toward the outer circumferential surface; a collet member 10 that is protrudingly attached, has a female tapered surface 9 on its inner circumferential surface that fits with the male tapered surface 7, and is capable of penetrating and outwardly tightening the workpiece W on its outer circumferential surface; the thrust member 5 and the sliding member; Thrust transmission member 1 connecting with moving member 8
1 and;
本実施例の工作機械1は旋盤を示し、符号12
は旋盤体、13は方向切換弁、14は油圧タンク
ユニツトである。
The machine tool 1 of this embodiment is a lathe, and the reference numeral 12
13 is a directional control valve, and 14 is a hydraulic tank unit.
また、前記シリンダ機構4無いには前記推力部
材5を進退移動する機構と前記主軸2の開店を許
容する機構とが併有されている。 Further, the cylinder mechanism 4 has both a mechanism for moving the thrust member 5 forward and backward and a mechanism for allowing the main shaft 2 to open.
また、本実施例の取付部材3はボルト15によ
り前記主軸2に取着されている。 Further, the mounting member 3 of this embodiment is attached to the main shaft 2 with bolts 15.
また、支持軸部材6は前記取付部材3の前面中
央部に一体的に突出形成されている。 Further, the support shaft member 6 is integrally formed to protrude from the central portion of the front surface of the mounting member 3.
また、本実施例の前記摺動部材5は、摺動用ベ
アリング16によつて軸方向摺動可能に構成され
ている。 Further, the sliding member 5 of this embodiment is configured to be slidable in the axial direction by means of a sliding bearing 16.
また、本実施例の前記コレツト部材10は外周
部に複数個の切割溝17を有し、この切割溝17
の幅を、通常は1mm程度であるが、0.3mm程度の
狭い幅に形成している。 Further, the collet member 10 of this embodiment has a plurality of cut grooves 17 on the outer circumference, and the cut grooves 17
Although the width is normally about 1 mm, it is formed to a narrow width of about 0.3 mm.
これは、ワークWが薄肉部材であることから、
ワークWの内周面が切削力によつて切割溝17内
に没入し、内周面を傷付けたり、波状に屈曲変形
することを防止するためである。 This is because the workpiece W is a thin member.
This is to prevent the inner circumferential surface of the workpiece W from sinking into the cut groove 17 due to the cutting force, thereby preventing the inner circumferential surface from being damaged or bent into a wave-like shape.
また、本実施例のスラスト伝達部材11は、中
間ボルト18、止めねじ19、締付ナツト20、
取付ボルト21、摺動杆22、ボルト23、連結
ボルト24で成り、前記推力部材8に中間ボルト
18を連結し、この中間ボルト18に締付ナツト
20を止めねじ19で連結し、前記取付部材3内
に摺動杆22を軸方向に摺動自在に嵌合し、この
摺動杆22内に取付ボルト21を嵌挿し、この取
付ボルト21に締付ナツト20を連結し、かつ摺
動杆22にボルト23によつて数個の連結ボルト
24を連結し、この連結ボルト24を前記取付部
材3を介して前方に突出し、この連結ボルト24
を前記摺動部材8に連結したものである。 Further, the thrust transmission member 11 of this embodiment includes an intermediate bolt 18, a set screw 19, a tightening nut 20,
Consisting of a mounting bolt 21, a sliding rod 22, a bolt 23, and a connecting bolt 24, an intermediate bolt 18 is connected to the thrust member 8, a tightening nut 20 is connected to the intermediate bolt 18 with a set screw 19, and the mounting member A sliding rod 22 is fitted into the sliding rod 3 so as to be slidable in the axial direction, a mounting bolt 21 is fitted into the sliding rod 22, a tightening nut 20 is connected to the mounting bolt 21, and the sliding rod is Several connecting bolts 24 are connected to 22 by bolts 23, and these connecting bolts 24 are projected forward through the mounting member 3, and these connecting bolts 24 are connected to each other by bolts 23.
is connected to the sliding member 8.
また、前記コレツト部材10は押圧リング25
とボルト26で取付部材3に取付けられている。 Further, the collet member 10 has a pressing ring 25.
and is attached to the mounting member 3 with bolts 26.
また、本実施例では、前記支持軸部材6の前部
中心部にボルト27で受筒部材28を固定し、こ
の受筒部材28の後端面を前ストツパ部となし、
これに前記摺動杆22の先端面を当てて前記摺動
部材8の前進位置を規制し、かつ前記取付部材3
にストツパボルト29を螺着し、このストツパボ
ルト29の前端部を後ストツパ部となし、これに
摺動部材8の後面を当てて摺動部材8の進退位置
を規制するようにしている。 Further, in this embodiment, a receiving cylinder member 28 is fixed to the center of the front part of the support shaft member 6 with a bolt 27, and the rear end surface of this receiving cylinder member 28 is used as a front stopper part.
The front end surface of the sliding rod 22 is applied to this to regulate the forward position of the sliding member 8, and the mounting member 3
A stopper bolt 29 is screwed onto the front end of the stopper bolt 29, and the front end of the stopper bolt 29 is used as a rear stopper, and the rear surface of the sliding member 8 is applied to this to regulate the forward and backward positions of the sliding member 8.
また、前記受筒部材28の前部に係合板30を
形成し、かつコレツト部材10の前面部に環状凹
溝31を形成し、この環状凹溝31と係合板30
との間にバネ弾性を有するリング板32を介在
し、前記コレツト部材10の拡縮動作を良好にし
ている。 Further, an engagement plate 30 is formed in the front part of the receiving cylinder member 28, and an annular groove 31 is formed in the front part of the collet member 10, and the annular groove 31 and the engagement plate 30 are formed in the front part of the collector member 10.
A ring plate 32 having spring elasticity is interposed between the collet member 10 and the collet member 10 to facilitate expansion and contraction operations of the collet member 10.
本実施例は上記構成であるから、前記シリンダ
機構4によつて前記推力部材5を前進移動する
と、前記摺動杆22は前進し、その連結ボルト2
4を介して前記摺動部材8は前記支持軸部材6上
を摺動用ベアリング16の作用で前進摺動し、こ
の摺動部材8の前進によつて前記雄テーパ面7は
コレツト部材10の雌テーパ面9に圧接され、こ
の圧接力で前記コレツト部材10は拡張し、これ
によつて前記ワークWは外側締着される。 Since this embodiment has the above configuration, when the thrust member 5 is moved forward by the cylinder mechanism 4, the sliding rod 22 moves forward, and the connecting bolt 2 moves forward.
4, the sliding member 8 slides forward on the support shaft member 6 by the action of the sliding bearing 16, and as the sliding member 8 moves forward, the male tapered surface 7 contacts the female part of the collector member 10. The collet member 10 is pressed against the tapered surface 9, and the collet member 10 expands due to this pressing force, thereby tightening the work W to the outside.
そして、前記シリンダ機構4によつて前記推力
部材5を進退移動すると、前記摺動杆22は後退
し、その連結ボルト24を介して前記摺動部材8
は前記支持軸部材6上を摺動用ベアリング16の
作用で後退移動し、この摺動部材8の後退によつ
て前記雄テーパ面7と雌テーパ面9との圧接作用
は解除され、これによつて前記コレツト部材10
は復元縮小し、該ワークWは解放され、抜脱され
る。 When the thrust member 5 is moved forward and backward by the cylinder mechanism 4, the sliding rod 22 moves backward, and the sliding member 8
moves backward on the support shaft member 6 by the action of the sliding bearing 16, and as the sliding member 8 retreats, the pressure contact between the male tapered surface 7 and the female tapered surface 9 is released. The collector member 10
is restored and reduced, and the workpiece W is released and removed.
本発明は上述の如く構成したから、前記シリン
ダ機構4によつて推力部材5を進退移動すると、
その進退移動によつて前記摺動部材8は進退移動
し、この前進時においては摺動部材8の雄テーパ
面7とコレツト部材10の雌テーパ面9とが圧接
し、この圧接作用でコレツト部材10は拡張し、
よつてワークWを外側締着することができ、また
後退時においては、前記雄テーパ面7と雌テーパ
面9との圧接作用が解除され、そのコレツト部材
10は復元縮小し、ワークWを解放することがで
きる。
Since the present invention is configured as described above, when the thrust member 5 is moved forward and backward by the cylinder mechanism 4,
The sliding member 8 moves forward and backward as the sliding member 8 moves forward and backward, and during this forward movement, the male tapered surface 7 of the sliding member 8 and the female tapered surface 9 of the collet member 10 are pressed against each other, and this pressing action causes the collet member to 10 expands,
Therefore, the workpiece W can be clamped to the outside, and when retracting, the pressure contact between the male tapered surface 7 and the female tapered surface 9 is released, the collet member 10 is restored and contracted, and the workpiece W is released. can do.
この際、特に前記摺動部材8は、前記主軸2の
中心と同心に、前記取付部材3の前面中央部に突
出形成した支持軸部材6上を摺動し、この摺動に
よつて前記コレツト部材10を拡張するから、該
支持軸部材6の剛性によつて摺動部材7の摺動精
度を向上する作用をなし、よつてコレツト部材1
0は精度、特に高同心度で拡張し、したがつてワ
ークWの締着保持精度の向上が期待できる。 At this time, in particular, the sliding member 8 slides on a support shaft member 6 formed protruding from the center of the front surface of the mounting member 3 concentrically with the center of the main shaft 2, and by this sliding, the collector Since the member 10 is expanded, the rigidity of the support shaft member 6 serves to improve the sliding accuracy of the sliding member 7, and therefore the collet member 1
0 expands with accuracy, especially with high concentricity, and therefore it can be expected that the accuracy of tightening and holding the workpiece W will improve.
しかもコレツト部材10は軸方向に摺動せずに
半径方向に拡張縮小運動のみをなす構造のためワ
ークWに軸方向の力を与えることがなく、それだ
けワークWの変形を抑制でき、良好なワーク保持
が可能となる。 Moreover, since the collet member 10 has a structure in which it only expands and contracts in the radial direction without sliding in the axial direction, it does not apply any force in the axial direction to the workpiece W, and the deformation of the workpiece W can be suppressed to that extent, resulting in a good workpiece. It becomes possible to retain the data.
また、その摺動運動を摺動用ベアリング16に
よつてなさせることで、より一層摺動精度は向上
し、よつて一層ワークWの締着保持精度を向上で
きる。 In addition, by making the sliding movement occur using the sliding bearing 16, the sliding accuracy is further improved, and the accuracy of holding the workpiece W in the fastened state can be further improved.
以上、所期の目的を充分達成することができ
る。 As described above, the intended purpose can be fully achieved.
図面は本発明の一実施例を示すもので、第1図
は要部の縦断面図、第2図はその横断面図、第3
図は全体正面図、第4図は従来例の縦断面図、第
5図は他の従来例の縦断面図である。
W……ワーク、1……工作機械、2……主軸、
3……取付部材、4……シリンダ機構、5……推
力部材、6……支持軸部材、7……雄テーパ面、
8……摺動部材、9……雌テーパ面、10……コ
レツト部材、11……スラスト伝達部材。
The drawings show one embodiment of the present invention, and FIG. 1 is a vertical cross-sectional view of the main part, FIG. 2 is a cross-sectional view thereof, and FIG.
The figure is an overall front view, FIG. 4 is a vertical cross-sectional view of a conventional example, and FIG. 5 is a vertical cross-sectional view of another conventional example. W...Work, 1...Machine tool, 2...Spindle,
3... Mounting member, 4... Cylinder mechanism, 5... Thrust member, 6... Support shaft member, 7... Male tapered surface,
8...Sliding member, 9...Female tapered surface, 10...Collection member, 11...Thrust transmission member.
Claims (1)
主軸を貫通し、前記工作機械のシリンダ機構によ
つて該主軸の軸方向に進退移動される推力部材
と;前記取付部材の前面中央部に突出形成され、
前記主軸中心と同心の支持軸部材と;該支持軸部
材の外周面に摺動可能に装着され、外周面に前方
に向つて先細りの雄テーパ面を形成した摺動部材
と;前記取付部材の前面外周部に突出取着され、
内周面に前記雄テーパ面と嵌合する雌テーパ面を
有し、外周面でワークを貫通外側締着し得るコレ
ツト部材と;前記推力部材と前記摺動部材とを連
結するスラスト伝達部材と;を備えてなるコレツ
トチヤツク装置。 2 上記支持部材の外周面と上記摺動部材の外周
面とを摺動用ベアリングで摺動可能にした特許請
求の範囲第1項記載のコレツトチヤツク装置。[Scope of Claims] 1. A mounting member attached to a main shaft of a machine tool; a thrust member that passes through the main shaft and is moved forward and backward in the axial direction of the main shaft by a cylinder mechanism of the machine tool; A protrusion is formed at the center of the front of the mounting member,
a support shaft member that is concentric with the center of the main shaft; a sliding member that is slidably attached to the outer peripheral surface of the support shaft member and has a male tapered surface that tapers forward toward the outer peripheral surface; It is attached protrudingly to the front outer periphery,
a collet member having a female tapered surface that fits with the male tapered surface on its inner circumferential surface and capable of penetrating and outwardly tightening a workpiece on its outer circumferential surface; a thrust transmission member that connects the thrust member and the sliding member; A collect chuck device comprising; 2. The collect chuck device according to claim 1, wherein the outer circumferential surface of the supporting member and the outer circumferential surface of the sliding member are slidable by a sliding bearing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23954383A JPS60131103A (en) | 1983-12-19 | 1983-12-19 | Collet chuck device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23954383A JPS60131103A (en) | 1983-12-19 | 1983-12-19 | Collet chuck device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60131103A JPS60131103A (en) | 1985-07-12 |
JPS64161B2 true JPS64161B2 (en) | 1989-01-05 |
Family
ID=17046370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23954383A Granted JPS60131103A (en) | 1983-12-19 | 1983-12-19 | Collet chuck device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60131103A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100713710B1 (en) * | 1999-12-17 | 2007-05-07 | (주)하야시바라 생물화학연구소 | Cyanine Dye |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3412388B1 (en) * | 2017-06-07 | 2019-10-30 | Hainbuch GmbH Spannende Technik | Internal clamping means with secure clamping segment ring |
CN109550988B (en) * | 2018-12-07 | 2021-04-30 | 广州市昊志机电股份有限公司 | High-precision machine tool mandrel clamp and clamping method thereof |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5521840U (en) * | 1978-07-28 | 1980-02-12 |
-
1983
- 1983-12-19 JP JP23954383A patent/JPS60131103A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100713710B1 (en) * | 1999-12-17 | 2007-05-07 | (주)하야시바라 생물화학연구소 | Cyanine Dye |
Also Published As
Publication number | Publication date |
---|---|
JPS60131103A (en) | 1985-07-12 |
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