JPH0418726Y2 - - Google Patents
Info
- Publication number
- JPH0418726Y2 JPH0418726Y2 JP1986130872U JP13087286U JPH0418726Y2 JP H0418726 Y2 JPH0418726 Y2 JP H0418726Y2 JP 1986130872 U JP1986130872 U JP 1986130872U JP 13087286 U JP13087286 U JP 13087286U JP H0418726 Y2 JPH0418726 Y2 JP H0418726Y2
- Authority
- JP
- Japan
- Prior art keywords
- machining
- finishing
- chip
- chamfering
- workpiece
- 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
- 238000003754 machining Methods 0.000 claims description 127
- 238000007730 finishing process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、例えば、シリンダボアの内面加工等
に使用されるボーリング加工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 a boring machine used for, for example, machining the inner surface of a cylinder bore.
（従来技術）
一般に、シリンダボアの内面にボーリング加工
を施す場合、荒加工、中仕上げ加工、ボア下端部
内面に面取りを行う裏面取り加工および仕上げ加
工を施すのが普通であるが、上記各加工を別々の
切削工具を用いて行うと、加工工程が非常に煩雑
化するという問題があるため、従来から、荒加工
および裏面取り加工を除く中仕上げ加工および仕
上げ加工を１個の加工ヘツドを用いて行うように
することが試みられている。例えば、１個の加工
ヘツドに対して、中仕上げ用の加工チツプを固定
するとともに、仕上げ用の加工チツプをカム機構
によつて半径方向に進退自在に設けるようにした
ものが試みられている。(Prior art) Generally, when boring the inner surface of a cylinder bore, it is common to perform rough machining, semi-finishing, back chamfering to chamfer the inner surface of the lower end of the bore, and finishing. Since there is a problem in that the machining process becomes extremely complicated if separate cutting tools are used, it has traditionally been the case that semi-finishing machining and finishing machining, excluding rough machining and back chamfering, are performed using a single machining head. Attempts are being made to do so. For example, attempts have been made to fix a machining chip for semi-finishing to one machining head, and to provide a machining chip for finishing so that it can move forward and backward in the radial direction using a cam mechanism.
（考案が解決しようとする問題点）
上記従来技術の場合、中仕上げおよび仕上げ加
工を１個の加工ヘツドで行うことはできるが、裏
面取り加工は別個の加工ツールを用いて行わなけ
ればならず、加工工程の簡略化を図る上で限界が
あつた。(Problems to be solved by the invention) In the case of the above-mentioned conventional technology, semi-finishing and finishing machining can be performed with one machining head, but back chamfering must be performed using a separate machining tool. However, there were limits to the simplification of the processing process.
本考案は、上記の点に鑑みてなされたもので、
ワークに施されるべき複数の加工（例えば、シリ
ンダボアに対する中仕上げ加工、裏面取り加工は
および仕上げ加工）を１個の加工ヘツドで行い得
るようにすることを目的とするものである。 This invention was made in view of the above points,
The object of this invention is to enable a single machining head to perform a plurality of machining operations to be performed on a workpiece (for example, semi-finishing machining, back chamfering machining, and finishing machining for a cylinder bore).
（問題点を解決するための手段）
本考案では、上記問題点を解決するための手段
として、ワークの孔に対して、第１仕上げ加工、
面取り加工および第２仕上げ加工の三つの加工を
施すべく構成された少なくとも三つの加工チツプ
を有する加工ヘツドと、該加工ヘツドを回転駆動
させる駆動ユニツトとを備えたボーリング加工装
置において、前記第１仕上げ用加工チツプを、最
小加工径となる位置に固定する一方、残りの面取
り用および第２仕上げ用加工チツプを、前記ワー
クの孔における面取り加工側からワーク孔の外方
に向つて面取り用加工チツプ、第２仕上げ用加工
チツプの順で前記加工ヘツドの軸方向に相対位置
をずらしてワーク半径方向に進退自在に配設する
とともに、前記加工ヘツドに、前記面取り用加工
チツプおよび第２仕上げ用加工チツプをワーク半
径方向にそれぞれ進退させるカム面を有するカム
部材を前記加工ヘツドの軸方向に移動自在に設け
且つ該カム面を、第２仕上げ用加工チツプのワー
ク半径方向への突出量が面取り用加工チツプのそ
れよりも常に大きくなるような相関関係で、しか
も第２仕上げ加工時においては面取り用加工チツ
プの突出量が前記第１仕上げ用加工チツプの加工
径以下となるように突出量を変化させる如く規定
し、さらに、前記駆動ユニツトに、前記カム部材
を加工ヘツドの軸方向に移動させるカム部材移動
手段を付設している。(Means for solving the problem) In the present invention, as a means for solving the above problem, a first finishing process is performed on the hole of the workpiece.
In a boring machine comprising a machining head having at least three machining chips configured to perform three machining operations, chamfering and second finishing, and a drive unit that rotationally drives the machining head, the first finishing While fixing the machining chip for chamfering and second finishing at the position where the minimum machining diameter is obtained, the remaining chamfering chips and second finishing chips are moved from the chamfering side of the hole of the workpiece toward the outside of the workpiece hole. , and a second finishing machining tip are arranged in this order so that they can move forward and backward in the radial direction of the workpiece with their relative positions shifted in the axial direction of the machining head, and the chamfering machining tip and the second finishing machining tip are arranged in the machining head in such a way that they can move forward and backward in the radial direction of the workpiece. A cam member having a cam surface for advancing and retracting the tip in the radial direction of the workpiece is provided so as to be movable in the axial direction of the processing head, and the cam member is configured such that the amount of protrusion of the second finishing processing tip in the radial direction of the workpiece is for chamfering. The correlation is such that the correlation is always larger than that of the machining chip, and the protrusion amount is changed so that the protrusion amount of the chamfering machining chip is equal to or less than the machining diameter of the first finishing machining chip during the second finishing machining. Further, the drive unit is provided with a cam member moving means for moving the cam member in the axial direction of the processing head.
（作用）
本考案では、上記手段によつて次のような作用
が得られる。(Function) In the present invention, the following effects can be obtained by the above means.
即ち、加工ヘツドにおいて最小加工径となる位
置に固定された第１仕上げ用加工チツプで、ワー
クの孔が最小加工径に加工されるとともに、前記
加工ヘツドの軸方向に相対位置をずらして配設さ
れた面取り用および第２仕上げ用加工チツプのワ
ーク半径方向への突出量がカム部材の作動により
変化せしめられることにより、加工位置が異なり
且つ加工径が異なる面取り加工および第２仕上げ
加工が同一の加工ヘツドで行なえることとなり、
加工工程の大巾な簡略化が図れるのである。 That is, the hole in the workpiece is machined to the minimum machining diameter with the first finishing machining chip fixed at the position where the machining diameter is the minimum in the machining head, and the chip is disposed with a relative position shifted in the axial direction of the machining head. By changing the amount of protrusion of the chamfering and second finishing machining chips in the radial direction of the workpiece by the operation of the cam member, chamfering and second finishing machining at different machining positions and with different machining diameters can be performed at the same time. This can be done at the processing head,
This greatly simplifies the processing process.
（実施例）
以下、添付の図面を参照して、本考案の好適な
実施例を説明する。(Embodiments) Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
本実施例のボーリング加工装置は、シリンダボ
アをワーク１とし、該シリンダボア１の孔２に対
して中仕上げ加工（即ち、第１仕上げ加工）、裏
面取り加工（即ち、面取り加工）および仕上げ加
工（即ち、第２仕上げ加工）を施すために使用さ
れるものであり、一対の中仕上げ用加工チツプ４
ａ，４ａ、裏面取り用加工チツプ４ｂおよび仕上
げ加工用加工チツプ４ｃを有する加工ヘツド３
と、該加工ヘツド３を回転駆動させる駆動ユニツ
ト５（第５図参照）とを備えている。該駆動ユニ
ツト５は、基台６上にあつて前記シリンダボア１
と対向して第５図矢印ＰあるいはＱ方向に進退す
る可動台７に回転自在に枢支され且つ前記加工ヘ
ツド３に連結された主軸８と、該主軸８を回転駆
動させるべくベルト９を介して連結された主軸モ
ータ１０とからなつている。 The boring machine of this embodiment uses a cylinder bore as a workpiece 1, and performs semi-finishing (i.e., first finishing), back chamfering (i.e., chamfering), and finishing (i.e., chamfering) and finishing (i.e., , second finishing), and a pair of semi-finishing chips 4
a, 4a, a machining head 3 having a machining tip 4b for back chamfering and a machining tip 4c for finishing machining.
and a drive unit 5 (see FIG. 5) that rotationally drives the processing head 3. The drive unit 5 is placed on a base 6 and is connected to the cylinder bore 1.
A main shaft 8 is rotatably supported on a movable table 7 which moves forward and backward in the direction of arrow P or Q in FIG. The main shaft motor 10 is connected to the main shaft motor 10.
前記中仕上げ用加工チツプ４ａは、加工ヘツド
３において最小加工径R1（本実施例の場合、91.7
mm）となる位置に固定具２３を介して固定されて
いる（第２図および第３図参照）。 The semi-finishing machining tip 4a has a minimum machining diameter R 1 (91.7 in the case of this embodiment) in the machining head 3.
mm) via a fixture 23 (see FIGS. 2 and 3).
前記裏面取り用加工チツプ４ｂと仕上げ用加工
チツプ４ｃとは、前記シリンダボア１の孔２にお
ける面取り加工側からワーク孔２の外方に向つて
裏面取り用加工チツプ４ｂ、仕上げ用加工チツプ
４ｃの順で加工ヘツド３の軸方向に相対的に若干
ずらした位置にカートリツジ１１，１２を介して
配設されており、該カートリツジ１１，１２は、
その一端部を加工ヘツド３に対してボルト１３，
１３……によつて固着され、該ボルト固着部の近
傍にそれぞれ形成されたスリツト１４，１４を基
点として自由端部１１ａ，１２ａ（加工チツプ４
ｂ，４ｃ側）がシリンダボア１の半径方向に揺動
自在とされている。 The back chamfering chip 4b and the finishing chip 4c are arranged in the order of the back chamfering chip 4b and the finishing chip 4c from the chamfering side of the hole 2 of the cylinder bore 1 toward the outside of the workpiece hole 2. The machining head 3 is disposed at a position slightly shifted in the axial direction of the machining head 3 via cartridges 11 and 12, and the cartridges 11 and 12 are
One end of the bolt 13 is attached to the machining head 3.
13..., and the free ends 11a and 12a (processed chips 4
b, 4c sides) are swingable in the radial direction of the cylinder bore 1.
また、前記加工ヘツド３の軸心部には、前記裏
面取り用加工チツプ４ｂおよび仕上げ用加工チツ
プ４ｃをシリンダボア１の半径方向に進退させる
べく前記カートリツジ１１，１２の自由端部１１
ａ，１２ａを半径方向へ揺動自在とするカム部材
１５が加工ヘツド３の軸方向に移動自在に設けら
れている。該カム部材１５には、前記カートリツ
ジ１１，１２の自由端１１ａ，１２ａにそれぞれ
設けられた接合ピン１６，１７が当接されるカム
面１５ａ，１５ｂが形成されている。 Further, a free end portion 11 of the cartridge cartridges 11 and 12 is provided at the axial center of the processing head 3 in order to move the back chamfering processing chip 4b and the finishing processing chip 4c back and forth in the radial direction of the cylinder bore 1.
A cam member 15 is provided so as to be movable in the axial direction of the machining head 3. The cam member 15 is formed with cam surfaces 15a and 15b that are abutted by joining pins 16 and 17 provided at the free ends 11a and 12a of the cartridges 11 and 12, respectively.
そして、前記カム部材１５の移動に伴つて突出
される裏面取り用加工チツプ４ｂの最大加工径
R2（本実施例の場合、93mm）は、仕上げ用加工チ
ツプ４ｃの最大加工径R3（本実施例の場合、93.2
mm）より僅か小さくなるように設定され、また、
前記カム部材１５の中間位置への移動に伴つて後
退された状態において、前記裏面取り用加工チツ
プ４ｂの加工径は前記中仕上げ用加工チツプ４ａ
の加工径R1と同径（即ち、91.7mm）とされる一
方、前記仕上げ用加工チツプ４ｃの加工径R4（本
実施例の場合、91.9mm）は、中仕上げ用加工チツ
プ４ａおよび裏面取り用加工チツプ４ｂの加工径
R1（即ち、91.7mm）より僅か大きくなるように設
定されている。なお、カム部材１５が作用してい
ない状態における前記裏面取り用加工チツプ４ｂ
および仕上げ用加工チツプ４ｃの最小加工径は、
中仕上げ用加工チツプ４ａの加工径R1より小径
となるように設定されている。本実施例では、前
記仕上げ用加工チツプ４ｃは、裏面取り用加工チ
ツプ４ｂより加工ヘツド３の軸方向に関してL1
（即ち、３mm）だけ先端よりに位置せしめられ、
中仕上げ用加工チツプ４ａは、仕上げ用加工チツ
プ４ｃよりさらにL2（即ち、３mm）だけ先端より
に位置せしめられている。 The maximum machining diameter of the back chamfering chip 4b that protrudes as the cam member 15 moves.
R 2 (93 mm in this example) is the maximum machining diameter R 3 (93.2 mm in this example) of the finishing machining chip 4c.
mm), and is set to be slightly smaller than
In the retracted state as the cam member 15 moves to the intermediate position, the machining diameter of the back chamfering chip 4b is equal to the semi-finishing chip 4a.
The machining diameter R 1 of the finishing chip 4c is the same diameter (that is, 91.7 mm), while the machining diameter R 4 (91.9 mm in this embodiment) of the semi-finishing chip 4a and the back surface Machining diameter of cutting chip 4b
It is set to be slightly larger than R 1 (ie, 91.7 mm). Note that the processing tip 4b for back chamfering when the cam member 15 is not acting is
And the minimum machining diameter of the finishing machining tip 4c is:
The diameter is set to be smaller than the machining diameter R1 of the semi-finishing machining chip 4a. In this embodiment, the finishing processing chip 4c is L 1 from the back chamfering processing chip 4b in the axial direction of the processing head 3.
(i.e. 3 mm) further from the tip,
The semi-finishing chip 4a is positioned further L 2 (ie, 3 mm) from the tip than the finishing chip 4c.
さらに、前記カム部材１５は前記主軸８の軸心
部を貫通し、その後端部は該カム部材１５を加工
ヘツド３の軸方向に移動させるべく作用するカム
部材移動手段１８に連結されており、該カム部材
移動手段１８は前記可動台７に設置されている。
なお、このカム部材１５は、主軸８と共回り可能
な如くキー１９を介して結合せしめられている。 Further, the cam member 15 passes through the axial center of the main shaft 8, and its rear end is connected to a cam member moving means 18 that acts to move the cam member 15 in the axial direction of the processing head 3, The cam member moving means 18 is installed on the movable base 7.
The cam member 15 is coupled to the main shaft 8 via a key 19 so that it can rotate together with the main shaft 8.
このカム部材移動手段１８は、駆動モータ２０
と該駆動モータ２０により回転されるネジ部材２
１に螺合させて進退し且つ前記カム部材１５の後
端部を回転自在に枢支するスライド部材２２とか
らなつている。 This cam member moving means 18 is driven by a drive motor 20
and a screw member 2 rotated by the drive motor 20.
1 and a slide member 22 that moves forward and backward while being screwed into the cam member 1 and rotatably supports the rear end of the cam member 15.
ついで、図示のボーリング加工装置の作用を説
明する。 Next, the operation of the illustrated boring machine will be explained.
荒加工されたシリンダボア１を適宜の治具を用
いて位置決めした後、カム部材移動手段１８の作
動によりカム部材１５を進出位置に位置せしめ
（換言すれば、カム部材１５を不作動状態とし、）
可動台７を第５図矢印Ｐ方向へ進出せしめつつ、
主軸モータ１０を駆動させて主軸８を回転させ、
加工ヘツド３の中仕上げ用加工チツプ４ａ，４ａ
によつてシリンダボア１の孔２に対して中仕上げ
加工を施す。この時、裏面取り用加工チツプ４ｂ
および仕上げ用加工チツプ４ｃは、後退位置にあ
つて中仕上げ用加工チツプ４ａの加工径R1より
小径となつているため、シリンダボア１の内面に
は当たらない。かくして中仕上げ加工が終わる
と、つぎに、カム部材移動手段１８を作動させて
カム部材１５を後退させて、該カム部材１５の作
用によつて裏面取り用加工チツプ４ｂおよび仕上
げ用加工チツプ４ｃを最大加工径R2，R3となる
ように突出させ、その状態で主軸モータ１０を駆
動させつつ、可動台７を第５図矢印Ｑ方向に後退
させて、裏面取り用加工チツプ４ｂでシリンダボ
ア１の端部内面に裏面取り加工を施す。この時、
仕上げ用加工チツプ４ｃは、その加工径R3が裏
面取り用加工チツプ４ｂの加工径R2より大径と
なつているが、裏面取り用加工チツプ４ｂより加
工ヘツド３の先端側に位置せしめられているた
め、裏面取り加工時に仕上げ用加工チツプ４ｃが
シリンダボア１に干渉することはない（第１図参
照）。而して、シリンダボア１に対する裏面取り
加工が完了すると、再びカム部材移動手段１８を
作動させてカム部材１５を中間位置まで進出せし
め、裏面取り用加工チツプ４ｂおよび仕上げ用加
工チツプ４ｃを若干後退させて仕上げ用加工チツ
プ４ｃを所望の加工径R4とすると、裏面取り用
加工チツプ４ｂの加工径が中仕上げ用加工チツプ
４ａと同径R1となる（第４図参照）。この状態の
もとに、主軸モータ１０を駆動させつつ可動台７
を第５図矢印Ｑ方向に後退させて、仕上げ用加工
チツプ４ｃによつてシリンダボア１の孔２に対し
て仕上げ加工を施す。この時、中仕上げ用加工チ
ツプ４ａおよび裏面取り用加工チツプ４ｂの加工
径R1が仕上げ用加工チツプ４ｃの加工径R4より
小径となつているため、仕上げ用加工チツプ４ｃ
によつて仕上げ加工されたシリンダボア１の孔２
が中仕上げ用加工チツプ４ａおよび裏面取り用加
工チツプ４ｂによつて傷付けられるおそれはな
い。 After positioning the roughly machined cylinder bore 1 using a suitable jig, the cam member moving means 18 is operated to position the cam member 15 in the advanced position (in other words, the cam member 15 is rendered inactive).
While advancing the movable platform 7 in the direction of arrow P in Fig. 5,
Drive the main shaft motor 10 to rotate the main shaft 8,
Machining chips 4a, 4a for semi-finishing of the machining head 3
Semi-finishing is performed on hole 2 of cylinder bore 1 by. At this time, the processing chip 4b for back chamfering
The finishing tip 4c is in the retracted position and has a diameter smaller than the machining diameter R1 of the semi-finishing tip 4a, so it does not touch the inner surface of the cylinder bore 1. When the semi-finishing process is completed in this way, the cam member moving means 18 is operated to move the cam member 15 backward, and the back chamfering chip 4b and the finishing chip 4c are moved by the action of the cam member 15. The machining tip 4b is protruded to the maximum machining diameters R2 and R3 , and while driving the spindle motor 10, the movable base 7 is moved back in the direction of the arrow Q in FIG. Apply back chamfering to the inner surface of the end. At this time,
The finishing chip 4c has a machining diameter R3 larger than the machining diameter R2 of the back chamfering chip 4b, but is positioned closer to the tip of the machining head 3 than the back chamfering chip 4b. Therefore, the finishing chip 4c does not interfere with the cylinder bore 1 during back chamfering (see FIG. 1). When the back chamfering of the cylinder bore 1 is completed, the cam member moving means 18 is operated again to advance the cam member 15 to the intermediate position, and the back chamfering processing tip 4b and the finishing processing tip 4c are slightly retreated. When the finishing machining chip 4c is set to a desired machining diameter R4 , the machining diameter of the back chamfering machining chip 4b becomes the same diameter R1 as that of the semi-finishing machining chip 4a (see FIG. 4). Under this condition, while driving the main shaft motor 10, the movable base 7
is retreated in the direction of arrow Q in FIG. 5, and finishing is performed on the hole 2 of the cylinder bore 1 using the finishing tip 4c. At this time, since the machining diameter R 1 of the semi-finishing machining chip 4a and the back chamfering machining chip 4b is smaller than the machining diameter R 4 of the finishing machining chip 4c, the finishing machining chip 4c
Hole 2 of cylinder bore 1 finished by
There is no possibility that the semi-finishing chip 4a and the back chamfering chip 4b will damage the chip.
上記した如く、本実施例によれば、１個の加工
ヘツド３に設けられた中仕上げ用加工チツプ４
ａ，４ａ、裏面取り用加工チツプ４ｂおよび仕上
げ用加工チツプ４ｃによつて、加工位置および加
工径の異なる３種の加工を施すことができるので
ある。 As described above, according to this embodiment, the semi-finishing machining chip 4 provided in one machining head 3
Three types of machining with different machining positions and machining diameters can be performed by the machining chips a, 4a, the back chamfering machining chip 4b, and the finishing machining chip 4c.
また、本考案は、上記実施例に示すものに限定
されるものではなく、加工ヘツド、駆動ユニツ
ト、カム部材およびカム部材移動手段等につい
て、考案の要旨を逸脱しない範囲において適宜設
計変更することができることは勿論である。 Furthermore, the present invention is not limited to what is shown in the above embodiments, and the design of the processing head, drive unit, cam member, cam member moving means, etc. may be changed as appropriate without departing from the gist of the invention. Of course it can be done.
（考案の効果）
叙上の如く、本考案によれば、ワークの孔に対
して、第１仕上げ加工、面取り加工および第２仕
上げ加工の三つの加工を施すべく構成された少な
くとも三つの加工チツプを有する加工ヘツドと、
該加工ヘツドを回転駆動させる駆動ユニツトとを
備えたボーリング加工装置において、前記第１仕
上げ用加工チツプを、最小加工径となる位置に固
定する一方、残りの面取り用および第２仕上げ用
加工チツプを、前記ワークの孔における面取り加
工側からワーク孔の外方に向つて面取り用加工チ
ツプ、第２仕上げ用加工チツプの順で前記加工ヘ
ツドの軸方向に相対位置をずらしてワーク半径方
向に進退自在に配設するとともに、前記加工ヘツ
ドに、前記面取り用加工チツプおよび第２仕上げ
用加工チツプをワーク半径方向にそれぞれ進退さ
せるカム面を有するカム部材を前記加工ヘツドの
軸方向に移動自在に設け且つ該カム面を、第２仕
上げ用加工チツプのワーク半径方向への突出量が
面取り用加工チツプのそれよりも常に大きくなる
ような相関関係で、しかも第２仕上げ加工時にお
いては面取り用加工チツプの突出量が前記第１仕
上げ用加工チツプの加工径以下となるように突出
量を変化させる如く規定し、さらに、前記駆動ユ
ニツトに、前記カム部材を加工ヘツドの軸方向に
移動させるカム部材移動手段を付設して、加工ヘ
ツドにおいて最小加工径となる位置に固定された
第１仕上げ用加工チツプで、ワークの孔を最小加
工径に加工した後、前記加工ヘツドの軸方向に相
対位置をずらして配設された面取り用および第２
仕上げ用加工チツプのワーク半径方向への突出量
をカム部材の作動により変化させることにより、
面取り加工および第２仕上げ加工を行い得るよう
にしたので、加工位置および加工径の異なる３種
の加工が各々専用の加工チツプを使用して同一の
加工ヘツドで行えることとなり、加工チツプの摩
耗を極力抑えて加工精度の向上を図るとともに、
加工工程の大巾な簡略化を図ることができるとい
う実用的な効果がある。(Effects of the invention) As described above, according to the invention, at least three machining chips are configured to perform three machining operations on a hole in a workpiece: a first finishing process, a chamfering process, and a second finishing process. a processing head having a
In a boring machine equipped with a drive unit that rotationally drives the machining head, the first finishing machining chip is fixed at a position where the minimum machining diameter is obtained, while the remaining chamfering and second finishing machining chips are fixed. , from the chamfering side of the hole of the workpiece toward the outside of the workpiece hole, a chamfering chip and a second finishing chip can move back and forth in the radial direction of the workpiece by shifting their relative positions in the axial direction of the machining head in this order. a cam member having a cam surface for advancing and retracting the chamfering chip and the second finishing chip in the radial direction of the workpiece is provided in the machining head so as to be movable in the axial direction of the machining head; The cam surface is shaped in such a manner that the amount of protrusion of the second finishing chip in the workpiece radial direction is always larger than that of the chamfering chip. A cam member moving means for changing the amount of protrusion so that the amount of protrusion is equal to or less than the machining diameter of the first finishing machining chip, and further causing the drive unit to move the cam member in the axial direction of the machining head. The hole in the workpiece is machined to the minimum diameter with the first finishing chip which is attached to the machining head and fixed at the position where the minimum machining diameter is obtained, and then the relative position is shifted in the axial direction of the machining head. For chamfering and second
By changing the amount of protrusion of the finishing tip in the workpiece radial direction by operating the cam member,
Since chamfering and second finishing machining can be performed, three types of machining with different machining positions and machining diameters can be performed in the same machining head using dedicated machining tips for each, reducing wear on the machining tip. In addition to improving machining accuracy by minimizing
This has the practical effect of greatly simplifying the processing process.
第１図は、本考案の実施例にかかるボーリング
加工装置の要部を示す断面図、第２図は、第１図
の−断面図、第３図は、第１図図示のボーリ
ング加工装置における中仕上げ用加工チツプ部分
を示す要部断面図、第４図は、第１図図示のボー
リング加工装置の仕上げ加工時の状態を示す要部
断面図、第５図は、本発明の実施例にかかるボー
リング加工装置の一部を断面とした側面図であ
る。
１……ワーク（シリンダボア）、２……孔、３
……加工ヘツド、４ａ……中仕上げ用加工チツ
プ、４ｂ……裏面取り用加工チツプ、４ｃ……仕
上げ用加工チツプ、５……駆動ユニツト、１５…
…カム部材、１８……カム部材移動手段。
FIG. 1 is a cross-sectional view showing the main parts of a boring machine according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the boring machine shown in FIG. 1, and FIG. FIG. 4 is a cross-sectional view of the main part showing the processing chip for semi-finishing, FIG. 4 is a cross-sectional view of the main part showing the state of the boring machine shown in FIG. 1 during finishing processing, and FIG. It is a side view with a part of cross section of such a boring processing device. 1... Work (cylinder bore), 2... Hole, 3
...Processing head, 4a...Processing chip for semi-finishing, 4b...Processing chip for back chamfering, 4c...Processing chip for finishing, 5...Drive unit, 15...
...Cam member, 18...Cam member moving means.
Claims (1)
加工および第２仕上げ加工の三つの加工を施すべ
く構成された少なくとも三つの加工チツプを有す
る加工ヘツドと、該加工ヘツドを回転駆動させる
駆動ユニツトとを備え、前記第１仕上げ用加工チ
ツプは、最小加工径となる位置に固定され、残り
の面取り用および第２仕上げ用加工チツプは、前
記ワークの孔における面取り加工側からワーク孔
の外方に向つて面取り用加工チツプ、第２仕上げ
用加工チツプの順で前記加工ヘツドの軸方向に相
対位置をずらされてワーク半径方向に進退自在に
配設されており、前記加工ヘツドには、前記面取
り用加工チツプおよび第２仕上げ用加工チツプを
ワーク半径方向にそれぞれ進退させるカム面を有
するカム部材が前記加工ヘツドの軸方向に移動自
在に設けられ、該カム面は、第２仕上げ用加工チ
ツプのワーク半径方向への突出量が面取り用加工
チツプのそれよりも常に大きくなるような相関関
係で、しかも第２仕上げ加工時においては面取り
用加工チツプの突出量が前記第１仕上げ用加工チ
ツプの加工径以下となるように突出量を変化させ
る如く規定され、前記駆動ユニツトには、前記カ
ム部材を加工ヘツドの軸方向に移動させるカム部
材移動手段が付設されていることを特徴とするボ
ーリング加工装置。 A machining head having at least three machining chips configured to perform three machining operations, a first finishing machining, a chamfering machining, and a second finishing machining, on a hole in a workpiece; and a drive unit that rotationally drives the machining head. The first finishing tip is fixed at a position where the minimum machining diameter is obtained, and the remaining chamfering and second finishing tips are arranged from the chamfering side of the workpiece hole to the outside of the workpiece hole. A machining chip for chamfering and a machining chip for finishing are disposed in this order so as to be able to move forward and backward in the radial direction of the workpiece with their relative positions being shifted in the axial direction of the machining head, and the machining head has the chamfering chip A cam member having a cam surface for advancing and retracting the second finishing tip and the second finishing tip in the radial direction of the workpiece is provided so as to be movable in the axial direction of the processing head, and the cam surface moves the second finishing tip forward and backward in the radial direction of the workpiece. The correlation is such that the amount of protrusion in the radial direction of the workpiece is always greater than that of the chamfering chip, and in addition, during the second finishing process, the amount of protrusion of the chamfering chip is equal to that of the first finishing chip. A boring processing apparatus characterized in that the protrusion amount is changed so as to be equal to or less than a diameter, and the drive unit is provided with a cam member moving means for moving the cam member in the axial direction of the processing head. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986130872U JPH0418726Y2 (en) | 1986-08-26 | 1986-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986130872U JPH0418726Y2 (en) | 1986-08-26 | 1986-08-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6335509U JPS6335509U (en) | 1988-03-07 |
| JPH0418726Y2 true JPH0418726Y2 (en) | 1992-04-27 |
Family
ID=31028789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986130872U Expired JPH0418726Y2 (en) | 1986-08-26 | 1986-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0418726Y2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2557908Y2 (en) * | 1990-09-17 | 1997-12-17 | 本田技研工業株式会社 | Composite tool for boring and honing |
| JP5173351B2 (en) * | 2007-10-19 | 2013-04-03 | 三菱マテリアル株式会社 | Inner diameter machining method |
| JP6383626B2 (en) * | 2014-10-06 | 2018-08-29 | 富士精工株式会社 | Boring tools |
| JP6677588B2 (en) * | 2016-06-27 | 2020-04-08 | 株式会社小松製作所 | Tools and equipment |
| DE102017213046A1 (en) * | 2017-07-28 | 2019-01-31 | Gühring KG | CUTTING TOOL AND METHOD FOR PROCESSING A STORAGE GASSE |
| JP7024301B2 (en) * | 2017-10-06 | 2022-02-24 | 株式会社Ihi | Hole inner surface cutting head |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322288B2 (en) * | 1974-11-26 | 1978-07-07 | ||
| JPS6142209B2 (en) * | 1977-12-22 | 1986-09-19 | Nippon Denso Kk |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322288U (en) * | 1976-08-03 | 1978-02-24 | ||
| JPS6142209U (en) * | 1984-08-22 | 1986-03-18 | 日本バレナイト・モドコ株式会社 | boring machine |
-
1986
- 1986-08-26 JP JP1986130872U patent/JPH0418726Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5322288B2 (en) * | 1974-11-26 | 1978-07-07 | ||
| JPS6142209B2 (en) * | 1977-12-22 | 1986-09-19 | Nippon Denso Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6335509U (en) | 1988-03-07 |
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