JPH0453610A - Tool deflection preventing jig for ultrasonic rotary drill - Google Patents
Tool deflection preventing jig for ultrasonic rotary drillInfo
- Publication number
- JPH0453610A JPH0453610A JP16197490A JP16197490A JPH0453610A JP H0453610 A JPH0453610 A JP H0453610A JP 16197490 A JP16197490 A JP 16197490A JP 16197490 A JP16197490 A JP 16197490A JP H0453610 A JPH0453610 A JP H0453610A
- Authority
- JP
- Japan
- Prior art keywords
- working tool
- hole
- tool
- radial ball
- cylindrical body
- 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
- 238000005553 drilling Methods 0.000 claims abstract description 18
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000000284 resting effect Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 25
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
- Machine Tool Units (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、超音波ロータリ穴明機に使用する深穴加工用
工具の加工開始時の振れや撓みを防止する治具に関する
。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a jig that prevents a deep hole drilling tool used in an ultrasonic rotary drilling machine from wobbling or deflecting at the start of processing.
［従来の技術］
従来、この種の加工工具による深穴加工開始時の振れや
撓みを防止する治具はない。[Prior Art] Conventionally, there is no jig that prevents this type of machining tool from wobbling or deflecting when starting deep hole machining.
従って、超音波ロータリ穴明機による深穴加工は、標準
タイプ（長さ４０ｍｍ程度）の加工工具によりガイド（
パイロット）穴を１０ｍｍ程度の深さまで穴明けした後
、−旦機械を停止し、深穴用の加工工具に交換して深穴
加工を行９ている。Therefore, when drilling deep holes using an ultrasonic rotary drilling machine, a standard type (about 40 mm in length) machining tool can be used to guide (
After drilling a pilot hole to a depth of about 10 mm, the machine is stopped, and a deep hole machining tool is replaced with a deep hole machining tool.
［発明が解決しようとする課題］
このため、従来は、深穴加工を行う場合、標準タイプの
加工工具と所要長さの深穴用加工工具の２種類の加工工
具を必要としている。[Problems to be Solved by the Invention] For this reason, conventionally, when performing deep hole machining, two types of machining tools are required: a standard type machining tool and a deep hole machining tool of a required length.
又、超音波ロータリ穴明機を一旦停止させ、工具交換を
行わなければならず、加工時間に無駄を生じている。Furthermore, the ultrasonic rotary drilling machine must be temporarily stopped and tools replaced, resulting in wasted machining time.
そこで、本発明は、深穴加工用の加工工具のみで深穴加
工を可能とし得る超音波ロータリ穴明機用工具振れ止め
治具の提供を目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a tool resting jig for an ultrasonic rotary drilling machine that can perform deep hole drilling using only a processing tool for deep hole drilling.
［１１題を解決するための手段］
前記ｉ！題を解決するため、本発明の超音波ロータリ穴
明機用工具振れ止め治具は、主軸の外側に取り外し可能
に嵌装される有底円筒状にして、かつ底部中央に加工工
具を挿通する透孔を設けた筒状体と、筒状体の底部にお
ける透孔の周辺に透孔の中心に対して進退可能に取り付
けられ、加工工具の軸の外周面に当接して回転自在な３
個のラジアルボールベアリングとからなるものである。[Means for solving 11 problems] The i! In order to solve this problem, the tool steady jig for an ultrasonic rotary drilling machine of the present invention has a cylindrical shape with a bottom that is removably fitted on the outside of the main shaft, and a machining tool is inserted through the center of the bottom. A cylindrical body provided with a through hole, and a cylindrical body attached to the periphery of the through hole at the bottom of the cylindrical body so as to be able to move forward and backward with respect to the center of the through hole, and which is rotatable by contacting the outer peripheral surface of the shaft of the processing tool.
It consists of several radial ball bearings.
［作用］
上記手段においては、加工工具の振れ又は撓みが３個の
ラジアルボールベアリングによって防止される。[Operation] In the above means, the three radial ball bearings prevent the machining tool from wobbling or deflecting.
ラジアルボールベアリングの当接位置は、できるだけ加
工工具の先端に近い所であることが望ましい。It is desirable that the contact position of the radial ball bearing be as close to the tip of the processing tool as possible.
又、ラジアルボールベアリングは、加工工具の軸の太さ
に応じた大きさのものに交換可能とすることが好ましい
。Further, it is preferable that the radial ball bearing be replaceable with one of a size corresponding to the thickness of the shaft of the processing tool.
なお、振れ止め治具の使用可能な加工工具としては、直
径２〜１２ｍｍ、長さ１００〜２００ｍｍ（最大４００
ｍｍ位迄可能）程度のものである。加工工具の直径が２
ｍｍ未満では、工具基材の強度の影響が大きくて振れ止
め効果が得られず、又、直径が１２ｍｍを超えると、上
記の程度の長さでは振れ等が発生せず、振れ止め治具を
用いる必要がないからである。Processing tools that can be used with steady rest jigs include diameters of 2 to 12 mm and lengths of 100 to 200 mm (maximum of 400 mm).
(possible up to about mm). The diameter of the processing tool is 2
If the diameter is less than 12 mm, the influence of the strength of the tool base material will be large and the steady rest effect will not be obtained, and if the diameter exceeds 12 mm, no runout will occur at the above length, making it difficult to use the steady rest jig. This is because there is no need to use it.
［実施例コ 以下、本発明の一実施例を図面と共に説明する。[Example code] An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明に係る工具振れ止め治具の縦断面図であ
る。FIG. 1 is a longitudinal sectional view of a tool steadying jig according to the present invention.
図中１は筒状体で、超音波ロータリ穴明機の主軸２のハ
ウジングの下端部の外側にボルト３を介して取り外し可
能に嵌装される筒部１ａと、筒部１ａの下端部に螺合し
たカップ部１ｂとからなる有底円筒状に設けられ、かつ
その底部中央には、主軸２に取り付けた深穴加工用の加
工工具４を挿通する透孔５が設けられており、深穴加工
用加工工具４と同程度の長さを有している。In the figure, 1 is a cylindrical body, which includes a cylindrical part 1a that is removably fitted to the outside of the lower end of the housing of the main shaft 2 of the ultrasonic rotary drilling machine via a bolt 3, and It is provided in the shape of a cylinder with a bottom, consisting of a cup part 1b screwed together, and a through hole 5 is provided in the center of the bottom, through which a machining tool 4 for deep hole machining attached to the main spindle 2 is inserted. It has the same length as the hole machining tool 4.
筒状体１の底部に招ける透孔５の周壁には、第２図、第
３図に詳記するように、断面矩形状の周溝６が設けられ
ており、この周溝６には、３個のベアリングホルダー７
がそれぞれ底部に螺入した調整ボルト８を介し透孔５の
中心に対して進退可能に嵌合され、かつ周方向へ等間隔
で離隔されている。各ベアリングホルダー７は、ベアリ
ング収容凹部７ａ（第３図参照）を透孔５の中心側に設
けた断面コ字状に設けられており、このベアリング収容
凹部フａには、加工工具４の軸の外周面に当接して回転
されるラジアルボールベアリング９が軸１０を介して回
転自在に取り付けられている。As detailed in FIGS. 2 and 3, a circumferential groove 6 having a rectangular cross section is provided in the circumferential wall of the through hole 5 leading to the bottom of the cylindrical body 1. , 3 bearing holders 7
are fitted so as to be movable in and out of the center of the through hole 5 via adjustment bolts 8 screwed into the bottoms thereof, and are spaced apart from each other at equal intervals in the circumferential direction. Each bearing holder 7 is provided with a U-shaped cross section with a bearing housing recess 7a (see FIG. 3) provided at the center side of the through hole 5. A radial ball bearing 9 is rotatably attached via a shaft 10 to be rotated while contacting the outer peripheral surface of the radial ball bearing 9 .
上記構成の振れ止め治具を用いて深穴加工を行うには、
まず加工工具４を主軸２のハウジングに取り付けた後、
調整ボルト８を緩めてベアリングホルダー７を後退させ
、透孔５から加工工具４の先端部を突出可能とした筒状
体１を主軸２のハウジングにボルト３を介して取り付け
る。To perform deep hole drilling using the steady rest jig with the above configuration,
First, after attaching the processing tool 4 to the housing of the spindle 2,
The adjustment bolt 8 is loosened, the bearing holder 7 is moved backward, and the cylindrical body 1, which allows the tip of the processing tool 4 to protrude from the through hole 5, is attached to the housing of the main shaft 2 via the bolt 3.
ついで、調整ボルト８を締めてベアリングホルダー７を
前進させ、ラジアルボールベアリング９を加工工具４の
軸の外周面に当接し、しかる後に加工工具４を主軸スリ
ーブの送り込みにより被加工物Ｗに接近させて深穴加工
を行う。Next, the adjustment bolt 8 is tightened to move the bearing holder 7 forward, so that the radial ball bearing 9 comes into contact with the outer peripheral surface of the shaft of the processing tool 4, and after that, the processing tool 4 is brought closer to the workpiece W by feeding the spindle sleeve. Perform deep hole drilling.
この深穴加工開始時に、加工工具４の先端部は、３個の
ラジアルボールベアリング９によって振れ等が防止され
る。At the start of deep hole machining, the tip of the machining tool 4 is prevented from wobbling by the three radial ball bearings 9.
［発明の効果］
以上のように本発明によれば、加工工具の振れ又は撓み
が３個のラジアルボールベアリングによって防止される
ので、深穴加工用加工工具のみで深穴加工を行うことが
でき、かつ加工工具の寿命も延び、従来のように深穴加
工用の他に標準タイプの加工工具を用いる必要がないと
共に、工具交換に伴う加工時間の無駄が生じることもな
い。[Effects of the Invention] As described above, according to the present invention, the three radial ball bearings prevent the machining tool from wobbling or bending, so deep hole machining can be performed using only the machining tool for deep hole machining. In addition, the life of the machining tool is extended, and there is no need to use a standard type machining tool in addition to the conventional one for deep hole machining, and there is no need to waste machining time due to tool replacement.
図は本発明の一実施例を示し、第１図は本発明に係る超
音波ロータリ穴明機用工具振れ止め治具の縦断面図、第
２図は第１図におけるＩＩ −ＩＩ線に沿った断面図、
第３図は要部の拡大断面図である。
１・・・筒状体 ２・・・主軸
４・・・加工工具 ５・・・透孔
６・・・周溝
７・・・ベアリングホルダー
８・・・調整ボルト
９・・・ラジアルボールベアリング
０・・・軸The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view of a tool steadying jig for an ultrasonic rotary drilling machine according to the invention, and Fig. 2 is a longitudinal cross-sectional view taken along the line II-II in Fig. 1. cross-sectional view,
FIG. 3 is an enlarged sectional view of the main part. 1... Cylindrical body 2... Main shaft 4... Processing tool 5... Through hole 6... Circumferential groove 7... Bearing holder 8... Adjustment bolt 9... Radial ball bearing 0 ···shaft
Claims (1)
状にして、かつ底部中央に加工工具を挿通する透孔を設
けた筒状体と、筒状体の底部における透孔の周辺に透孔
の中心に対して進退可能に取り付けられ、加工工具の軸
の外周面に当接して回転自在な３個のラジアルボールベ
アリングとからなる超音波ロータリ穴明機用工具振れ止
め治具。(1) A cylindrical body that is removably fitted on the outside of the spindle and has a cylindrical shape with a bottom and a through hole in the center of the bottom for inserting a processing tool, and the area around the through hole at the bottom of the cylindrical body. A tool resting jig for an ultrasonic rotary drilling machine, which is comprised of three radial ball bearings that are attached to the holder so that they can move forward and backward with respect to the center of a through hole, and that are rotatable by contacting the outer peripheral surface of the shaft of a processing tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16197490A JPH0453610A (en) | 1990-06-20 | 1990-06-20 | Tool deflection preventing jig for ultrasonic rotary drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16197490A JPH0453610A (en) | 1990-06-20 | 1990-06-20 | Tool deflection preventing jig for ultrasonic rotary drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0453610A true JPH0453610A (en) | 1992-02-21 |
Family
ID=15745624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16197490A Pending JPH0453610A (en) | 1990-06-20 | 1990-06-20 | Tool deflection preventing jig for ultrasonic rotary drill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0453610A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001347446A (en) * | 2000-06-08 | 2001-12-18 | Fujikoshi Mach Corp | Tape polishing device |
| CN104526370A (en) * | 2014-12-13 | 2015-04-22 | 天水星火机床有限责任公司 | Center rest for crank shaft rod journal lathe |
| JP6286600B1 (en) * | 2017-05-25 | 2018-02-28 | 三井造船株式会社 | Ultrasonic processing equipment |
| JP2019000957A (en) * | 2017-06-16 | 2019-01-10 | 株式会社春近精密 | Lens polishing device and lens polishing method |
-
1990
- 1990-06-20 JP JP16197490A patent/JPH0453610A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001347446A (en) * | 2000-06-08 | 2001-12-18 | Fujikoshi Mach Corp | Tape polishing device |
| CN104526370A (en) * | 2014-12-13 | 2015-04-22 | 天水星火机床有限责任公司 | Center rest for crank shaft rod journal lathe |
| JP6286600B1 (en) * | 2017-05-25 | 2018-02-28 | 三井造船株式会社 | Ultrasonic processing equipment |
| WO2018216720A1 (en) * | 2017-05-25 | 2018-11-29 | 株式会社三井Ｅ＆Ｓホールディングス | Ultrasonic machining apparatus |
| JP2018199174A (en) * | 2017-05-25 | 2018-12-20 | 株式会社三井Ｅ＆Ｓホールディングス | Ultrasonic processor |
| JP2019000957A (en) * | 2017-06-16 | 2019-01-10 | 株式会社春近精密 | Lens polishing device and lens polishing method |
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