JPH0366085B2 - - Google Patents
Info
- Publication number
- JPH0366085B2 JPH0366085B2 JP59100667A JP10066784A JPH0366085B2 JP H0366085 B2 JPH0366085 B2 JP H0366085B2 JP 59100667 A JP59100667 A JP 59100667A JP 10066784 A JP10066784 A JP 10066784A JP H0366085 B2 JPH0366085 B2 JP H0366085B2
- Authority
- JP
- Japan
- Prior art keywords
- chuck
- oil supply
- hole
- tube
- lubrication
- 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 - Lifetime
Links
- 238000005461 lubrication Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 32
- 230000000694 effects Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 239000010730 cutting oil Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003746 surface roughness Effects 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
- B23Q1/0036—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 one of those parts being a tool
-
- 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
- B23Q11/10—Arrangements for cooling or lubricating tools or work
- B23Q11/1015—Arrangements for cooling or lubricating tools or work by supplying a cutting liquid through the spindle
- B23Q11/1023—Tool holders, or tools in general specially adapted for receiving the cutting liquid from the spindle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明は、チヤツク本体のチヤツク筒に多数
の中空穴を穿設し、チヤツク筒に傾斜軸線をもつ
て配置された多数のニードルローラを介して回動
筒を嵌挿して回転切削工具に対する把持力を向上
させたチヤツクに関する。Detailed Description of the Invention (Industrial Field of Application) This invention has a chuck tube of a chuck body which is provided with a large number of hollow holes, and a chuck tube with a large number of needle rollers disposed with an inclined axis. The present invention relates to a chuck in which a rotary cylinder is fitted to improve the gripping force on a rotary cutting tool.
（従来技術）
ドリル、エンドミルなどの回転切削工具に対す
る給油には、外部から給油管を導き、給油管の注
油口を切削部に向けて設けて注油したり、回転切
削工具自体に給油穴を穿設し、該給油穴とチヤツ
クに設けた給油路を連通させたもの（実公昭55−
15946号）があつた。前者では、加工部分が変つ
たり、工具を交換すると、その都度注油口を手で
調整しなければならず、又加工物によつては板状
の突起物のある部品が工具と給油管の間に入り、
注油が妨げられることがあつた。後者では構造が
複雑であり高価である。(Conventional technology) To lubricate rotary cutting tools such as drills and end mills, a lubrication pipe is led from the outside and the lubrication port of the lubrication pipe is directed toward the cutting part, or a lubrication hole is drilled in the rotary cutting tool itself. A type in which the oil supply hole and the oil supply path provided in the chuck communicate with each other.
15946) was received. With the former, the oil filler port must be adjusted manually each time the machined part changes or the tool is replaced, and depending on the workpiece, parts with plate-shaped protrusions may interfere with the connection between the tool and the oil supply pipe. Intervene,
Lubricating was sometimes obstructed. The latter has a complicated structure and is expensive.
（発明の目的）
この発明は、上述の従来技術の問題点を解決す
べくなされたものであつて、工具の把持力を向上
させるためにチヤツク本体のチヤツク筒に多数の
中空穴を穿設し、チヤツク筒にチヤツク本体の軸
線に対し傾斜する軸線をもつて配置された多数の
ニードルローラを介して回動筒を嵌挿した従来か
らあるチヤツクに僅かな加工を施こすだけで、少
しも把持力を損うことなく、簡単に注油できるよ
うにしたチヤツクを提供することを目的とする。(Object of the Invention) The present invention has been made to solve the above-mentioned problems of the prior art.In order to improve the gripping force of the tool, a large number of hollow holes are bored in the chuck tube of the chuck body. By making a slight modification to the conventional chuck, in which a rotary tube is inserted into the chuck tube via a large number of needle rollers arranged with an axis inclined with respect to the axis of the chuck body, it is possible to grip the chuck even slightly. The purpose is to provide a chuck that allows easy lubrication without sacrificing power.
（発明の構成及び効果）
この発明は一端に工作機械のスピンドルに嵌合
するシヤンクを、他端にチヤツク筒を有するチヤ
ツク本体と、チヤツク筒の外周面に嵌挿され、回
動筒と、チヤツク筒と回動筒の間に介装され、チ
ヤツク本体の軸線に対して傾斜する軸線をもつて
保持されるニードルローラとからなり、チヤツク
筒の先端からニードルローラとの接触部を越えて
中空穴を多数平行に穿設したニードルローラ式チ
ヤツクにおいて、本体に給油装置を嵌挿し、前記
中空穴の１ないし数本と給油リングの給油穴と連
通させて給油穴を兼ねさせたものである。かかる
構造のため、中空穴の一部と給油装置の給油穴と
を連通させるだけで格別の装置がなくても注油が
可能であり、切刃のチツピングを防止できるので
加工面粗度がきわめて良好となり、加工部分に変
化が多くても、それに十分な給油ができる。しか
も、工具の把持力は少しも落ちることはないので
ある。さらに構造が簡単であるので高精度の加工
が可能であるにも拘らず、低廉であるなど、多く
の優れた効果を奏する。(Structure and Effects of the Invention) The present invention includes a chuck main body having a chuck tube at one end, a chuck body having a chuck tube at the other end, a rotating tube, and a chuck body which is fitted into the spindle of a machine tool at one end. It consists of a needle roller that is interposed between a cylinder and a rotating cylinder and is held with an axis that is inclined with respect to the axis of the chuck body. A needle roller type chuck having a large number of hollow holes bored in parallel, an oil supply device is fitted into the main body, and one or more of the hollow holes are communicated with the oil supply hole of the oil supply ring to serve as the oil supply hole. Due to this structure, lubrication is possible without special equipment by simply communicating a part of the hollow hole with the oil supply hole of the oil supply device, and chipping of the cutting edge is prevented, resulting in extremely good machined surface roughness. Therefore, even if there are many changes in the machined part, sufficient oil can be supplied to it. Moreover, the gripping force of the tool does not decrease at all. Furthermore, since the structure is simple, high-precision processing is possible, and it is inexpensive, and has many excellent effects.
（実施例の説明）
以下本発明の実施例を図面による説明する。チ
ヤツク本体１は主軸に取りつけ可能なシヤンク２
とつば部３と給油リング装着用円筒部４と工具を
把持するチヤツク筒５からなつている。円筒部４
及びチヤツク筒５、チヤツク筒の肉厚部６には中
空の深穴８が複数箇穿設されており、中空穴のう
ちの１本又は数本には、円筒部４の外周に開口す
る横穴９か穿設されていて油穴を形成している。
給油装置１０は円筒部４に嵌挿され、給油リング
１１に給油ねじ穴１２を穿設し内周両端に環状の
段部１３を形成し、該段部１３にオイルシール１
４を嵌入してある。押え金１５を給油リング１１
の両端にボルト１６により固定すると、オイルシ
ール１４も固定される。かかる構造の給油装置１
０を円筒部４に嵌入し、給油ねじ穴１２と横穴９
の位置を合わせスナツプリング１７で軸方向の移
動を止める。給油装置１０内で円筒部４は自在に
回転することができる。又給油装置１０と円筒部
４の間に環状の油溝１８ができる。円筒部５には
多数のニードルローラ１９がチヤツク本体１の軸
線に対して傾斜した軸線をもつて配置され、該ニ
ードルローラを介して回動軸２０が回動可能に乾
燥されている、シヤンク挿入穴２１に工具シヤン
クを直接挿入するか、コレツトに工具シヤンクを
入れたものを挿入して、回動筒２０を回転させ、
工具を直接又はコレツトを介して工具をシヤンク
挿入穴に固定する。(Description of Examples) Examples of the present invention will be described below with reference to the drawings. The chuck body 1 has a shank 2 that can be attached to the main shaft.
It consists of a collar part 3, a cylindrical part 4 for attaching an oil supply ring, and a chuck cylinder 5 for gripping a tool. Cylindrical part 4
A plurality of hollow deep holes 8 are bored in the chuck tube 5 and the thick walled portion 6 of the chuck tube, and one or more of the hollow holes has a horizontal hole opening on the outer periphery of the cylindrical portion 4. 9 are drilled to form oil holes.
The oil supply device 10 is fitted into the cylindrical portion 4, has a oil supply screw hole 12 drilled in the oil supply ring 11, an annular stepped portion 13 is formed at both ends of the inner circumference, and an oil seal 1 is attached to the stepped portion 13.
4 is inset. Lubricate ring 11 with presser foot 15
When it is fixed with bolts 16 at both ends, the oil seal 14 is also fixed. Oil supply device 1 having such a structure
0 into the cylindrical part 4 and the oil supply screw hole 12 and the side hole 9.
position and stop the movement in the axial direction with the snap spring 17. The cylindrical portion 4 can freely rotate within the oil supply device 10. Further, an annular oil groove 18 is formed between the oil supply device 10 and the cylindrical portion 4. A large number of needle rollers 19 are arranged in the cylindrical portion 5 with their axes inclined with respect to the axis of the chuck body 1, and a rotation shaft 20 is rotatably dried through the needle rollers. Insert the tool shank directly into the hole 21 or insert the tool shank into the collet and rotate the rotating cylinder 20.
The tool is fixed in the shank insertion hole directly or via the collet.
工具の固定が終ると、工作機械の主軸（図示せ
ず）にシヤンク２を挿入しチヤツク本体１を固定
し、さらに、給油管を給油ねじ穴１２のニツプル
に接続する。一方給油装置１０を図示しないスト
ツパにて回転しないようにしておく、主軸が回転
すると給油装置１０以外は回転し、切削工具は切
削に入る。切削油は図示しない給油管からねじ穴
１２にねじ込んだニツプル（図示せず）に入り、
さらに環状の油溝１８から横穴９、油穴となつた
中空穴８を経て吐出口２２より吐出され、加工部
分に充分給油する。 After the tool is fixed, the shank 2 is inserted into the main shaft (not shown) of the machine tool, the chuck body 1 is fixed, and the oil supply pipe is connected to the nipple of the oil supply screw hole 12. On the other hand, the oil supply device 10 is prevented from rotating by a stopper (not shown). When the main shaft rotates, everything except the oil supply device 10 rotates, and the cutting tool starts cutting. Cutting oil enters a nipple (not shown) screwed into the screw hole 12 from an oil supply pipe (not shown).
Further, the oil is discharged from the discharge port 22 through the annular oil groove 18, the horizontal hole 9, and the hollow hole 8 which serves as an oil hole, thereby sufficiently lubricating the machining part.
第１図は、本発明の実施例の部分断面図であ
る。第２図は、第１図の矢印方向から視た正面図
である。
１……チヤツク本体、２……シヤンク、５……
チヤツク筒、８……中空穴、１０…給油装置、１
９……ニードルローラ、２０……回動筒。
FIG. 1 is a partial cross-sectional view of an embodiment of the invention. FIG. 2 is a front view seen from the direction of the arrow in FIG. 1. 1...chuck body, 2...shank, 5...
Chuck tube, 8...Hollow hole, 10...Oil supply device, 1
9... Needle roller, 20... Rotating tube.
Claims (1)
ンクを、他端に切削工具を装着するチヤツク筒を
有するチヤツク本体と、チヤツク筒の外周面に嵌
挿された回動筒と、チヤツク筒と回動筒の間に介
装され、チヤツク本体の軸線に対して傾斜する軸
線をもつて保持されるニードルローラとからな
り、チヤツク筒の先端からニードルローラとの接
触部を越えて中空穴を多数平行に穿設したニード
ルローラ式チヤツクにおいて、本体に給油リング
を嵌挿し、前記中空穴の１ないし数本と給油装置
の給油穴とを連通させたことを特徴とする給油穴
付チヤツク。 ２ 前記給油リングの給油穴と連通する中空穴は
他の中空穴よりも長く形成されている特許請求の
範囲第１項記載の給油穴付チヤツク。[Scope of Claims] 1. A chuck main body having a shank that fits into the spindle of a machine tool at one end, a chuck tube to which a cutting tool is mounted at the other end, and a rotary tube fitted into the outer peripheral surface of the chuck tube. , a needle roller that is interposed between the chuck tube and the rotary tube and held with an axis that is inclined with respect to the axis of the chuck body; A needle roller type chuck with a number of hollow holes bored in parallel, with a lubrication hole, characterized in that a lubrication ring is inserted into the main body, and one or more of the hollow holes communicate with the lubrication hole of a lubrication device. Check. 2. The chuck with an oil supply hole according to claim 1, wherein the hollow hole communicating with the oil supply hole of the oil supply ring is formed longer than other hollow holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59100667A JPS60249516A (en) | 1984-05-21 | 1984-05-21 | Chuck with supply oil hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59100667A JPS60249516A (en) | 1984-05-21 | 1984-05-21 | Chuck with supply oil hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60249516A JPS60249516A (en) | 1985-12-10 |
| JPH0366085B2 true JPH0366085B2 (en) | 1991-10-16 |
Family
ID=14280128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59100667A Granted JPS60249516A (en) | 1984-05-21 | 1984-05-21 | Chuck with supply oil hole |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60249516A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3563562B2 (en) * | 1997-02-24 | 2004-09-08 | 株式会社日研工作所 | Chuck |
-
1984
- 1984-05-21 JP JP59100667A patent/JPS60249516A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60249516A (en) | 1985-12-10 |
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