JPH0318081Y2 - - Google Patents
Info
- Publication number
- JPH0318081Y2 JPH0318081Y2 JP1984195935U JP19593584U JPH0318081Y2 JP H0318081 Y2 JPH0318081 Y2 JP H0318081Y2 JP 1984195935 U JP1984195935 U JP 1984195935U JP 19593584 U JP19593584 U JP 19593584U JP H0318081 Y2 JPH0318081 Y2 JP H0318081Y2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- gears
- main shaft
- drive
- backlash removal
- 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 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Landscapes
- Turning (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は、同軸上で互いに対向し、かつそれぞ
れの対向対部にチヤツクを設けた左右の主軸ヘツ
ドを有し、両チヤツクにてクランプしたクランク
シヤフトのピン部を旋削する削機械における主軸
ヘツド装置に関するものである。[Detailed description of the invention] Industrial application field The present invention is a crankshaft which has left and right spindle heads that face each other on the same axis and have chucks on their opposing parts, and is clamped by both chucks. This invention relates to a spindle head device for a cutting machine that turns the pin portion of a machine.
従来の技術
クランクシヤフトのピン部を旋削する場合主軸
中心と被加工ピン中心とを一致させて加工する方
法がある。 BACKGROUND TECHNOLOGY When turning the pin portion of a crankshaft, there is a method in which the center of the spindle is aligned with the center of the pin to be machined.
この場合ピン偏心量だけ偏心した位置に中心を
持つチヤツクによりクランクシヤフトのジヤーナ
ルを把持しチヤツクを回転させるためクランクシ
ヤフトの両端を駆動することになる。 In this case, the chuck, whose center is eccentric by the amount of eccentricity of the pin, grips the journal of the crankshaft and rotates the chuck, thereby driving both ends of the crankshaft.
考案が解決しようとする問題点
上記加工法においてクランクシヤフトの両端を
駆動する主軸ヘツドをドライブシヤフトよつて同
期回転させる時主軸ヘツドのギヤ等のバツクラツ
シユがあるとその分だけ主軸ヘツドに位相ずれが
生じ、クランクシヤフトをねじることによりピン
の位相精度が悪くなつていた。 Problems to be Solved by the Invention In the above processing method, when the spindle heads that drive both ends of the crankshaft are rotated synchronously by the drive shaft, if there is backlash in the gears, etc. of the spindle head, a phase shift will occur in the spindle head to that extent. , the pin phase accuracy deteriorated due to twisting the crankshaft.
また、常時バツクラツシユをゼロの状態でギヤ
に負荷（プリロード）をかけておくと発熱の原因
となり加工精度に悪影響が出ていた。 In addition, if a load (preload) is always applied to the gear with the backlash at zero, it causes heat generation and adversely affects machining accuracy.
本考案は上記の事情に鑑みなされたものであつ
て、その目的とするところは主軸ヘツド内のバツ
クラツシユを完全に除去して左右のチヤツクの位
相ずれをなくし高精度の加工を行うことにある。 The present invention was developed in view of the above circumstances, and its purpose is to completely eliminate backlash within the spindle head, eliminate phase shift between left and right chucks, and perform highly accurate machining.
問題点を解決するための手段及び作用
本考案は、同軸上で互いに対向し、且つそれぞ
れの対向端部にチヤツク２１，２２を設けた左右
の主軸ヘツド１，２と、これと平行にしたドライ
ブシヤフト３を有し、各主軸ヘツド１，２の主軸
１１，１１に固着した主軸ギヤ９，９のそれぞれ
に、アイドラギヤ８，８を介してドライブシヤフ
ト３に固着したドライブギヤ７，７を噛合してな
る主軸ヘツド装置において、上記両アイドラギヤ
８，８のそれぞれの両側方に、バツクラツシユ除
去ギヤ１２，１３をアイドラギヤ８とは共回り可
能に且つ軸線方向には移動可能に設け、一方のバ
ツクラツシユ除去ギヤ１２をドライブギヤ７に噛
合させると共に他方のバツクラツシユ除去ギヤ１
３を主軸ギヤ９に噛合させ、各ドライブギヤ７、
アイドラギヤ８、主軸ギヤ９及びバツクラツシユ
除去ギヤ１２，１３をハスバ歯車にして構成して
あり、ワーククランプ時に、左右の各主軸ヘツド
１，２の主軸ギヤ９，９に噛合するそれぞれのア
イドラギヤ８，８のバツクラツシユ除去ギヤ１
２，１３をアイドラギヤ８から離間させる方向に
移動してドライブギヤ７，７とアイドラギヤ８，
８との間のバツクラツシユ及びアイドラギヤ８，
８と主軸ギヤ９，９との間のバツクラツシユを除
去し、両主軸ヘツド１，２内のバツクラツシユを
完全に去し、この状態で両主軸ヘツド１，２のチ
ヤツク２１，２２にてクランクシヤフト２３の両
端部を把持し、クランプ完了後上記左右のバツク
ラツシユ除去圧を除き、通常のドライブ作動を行
なうようになつている。 Means and Effects for Solving the Problems The present invention consists of left and right spindle heads 1 and 2 that face each other on the same axis and have chucks 21 and 22 at their respective opposing ends, and a drive that is parallel to the left and right spindle heads 1 and 2. Drive gears 7, 7, which are fixed to the drive shaft 3, are engaged with main shaft gears 9, 9, which are fixed to the main shafts 11, 11 of the main shaft heads 1, 2, respectively, through idler gears 8, 8. In the main shaft head device, backlash removal gears 12 and 13 are provided on both sides of the two idler gears 8 and 8 so as to be able to rotate together with the idler gear 8 and to be movable in the axial direction. 12 is meshed with the drive gear 7, and the other backlash removal gear 1 is engaged with the drive gear 7.
3 is meshed with the main shaft gear 9, and each drive gear 7,
The idler gear 8, main shaft gear 9, and backlash removal gears 12, 13 are configured as helical gears, and the idler gears 8, 8 mesh with the main shaft gears 9, 9 of the left and right main shaft heads 1, 2 during work clamping. Brush removal gear 1
Drive gears 7, 7 and idler gear 8,
8 and idler gear 8,
8 and the main shaft gears 9, 9, and completely remove the backlash in both the main shaft heads 1, 2. In this state, the crankshaft 23 is removed by the chucks 21, 22 of both main shaft heads 1, 2 After clamping is completed, the left and right backlash removal pressures are removed and normal drive operation is performed.
実旋例
以下、本考案の実旋例を図面を参照して説明す
る。 Practical Example Hereinafter, a practical example of the present invention will be explained with reference to the drawings.
１，２は互いに対向して設かた左右の主軸ヘツ
ドであり、３はこれらと平行に設けたドライブシ
ヤフトである。主軸ヘツド１，２のそれぞれの対
向端部にはチヤツク２１，２２が設けてある。ド
ライブシヤフト３は駆動モータ２４に動力伝達機
構２５を介して連結してある。 Reference numerals 1 and 2 are left and right main shaft heads arranged opposite to each other, and 3 is a drive shaft arranged parallel to these heads. Chucks 21 and 22 are provided at opposite ends of the spindle heads 1 and 2, respectively. The drive shaft 3 is connected to a drive motor 24 via a power transmission mechanism 25.
主軸ヘツド１，２は主軸１１を備えており、主
軸１１にはシユパンリング１０を介して主軸ギヤ
９が設けてある。またドライブシヤフト３にはシ
ユパンリング４を介して中空軸５が連結してあ
り、中空軸５にシユパンリング６を介してドライ
ブギヤ７が設けてある。 The main shaft heads 1 and 2 are equipped with a main shaft 11, and a main shaft gear 9 is provided on the main shaft 11 via a shuppan ring 10. Further, a hollow shaft 5 is connected to the drive shaft 3 via a shunpan ring 4, and a drive gear 7 is provided on the hollow shaft 5 through a shunpan ring 6.
Ａはバツクラツシユ除去機構であり、このバツ
クラツシユ除去機構Ａは主軸ヘツド１，２のフレ
ーム２６に軸受２７を介して設けられたアイドル
シヤフト１６を備えており、アイドルシヤフト１
６にはアイドルギヤ８が固着してあり、アイドル
ギヤ８の軸部２８の外周部には段部２９，３０が
形成してある。この軸部２８にはバツクラツシユ
除去ギヤ１２，１３がアイドルシヤフト１６の軸
線方向に移動可能に設けてあり、また軸部２８の
両端部にはバツクラツシユ除去ギヤ１２，１３を
回転方向にアイドルギヤ８と共に廻りさせるキー
１４，１５が設けてある。バツクラツシユ除去ギ
ヤ１２，１３の内周部には段部３１，３２が形成
してあり、段部２９，３１間及び段部３０，３２
間に油室１８，１９が形成してある。 Reference numeral A denotes a backlash removal mechanism, and this backlash removal mechanism A is equipped with an idle shaft 16 provided through a bearing 27 to a frame 26 of the spindle heads 1 and 2.
An idle gear 8 is fixedly attached to the shaft 6, and stepped portions 29 and 30 are formed on the outer circumference of a shaft portion 28 of the idle gear 8. This shaft portion 28 is provided with backlash removal gears 12 and 13 so as to be movable in the axial direction of the idle shaft 16, and the backlash removal gears 12 and 13 are provided at both ends of the shaft portion 28 so as to be movable along with the idle gear 8 in the rotational direction. Keys 14 and 15 are provided for turning. Step portions 31 and 32 are formed on the inner periphery of the backlash removal gears 12 and 13, and between the step portions 29 and 31 and between the step portions 30 and 32
Oil chambers 18 and 19 are formed between them.
前記アイドルシヤフト１６の端部には回転ジヨ
イント１７が設けてあり、回転ジヨイント１７の
固定側入口３３は油圧供給管３４に接続してあ
り、回転ジヨイント１７の油出口３５は通孔３６
を介して前記油室１８，１９に通じている。 A rotary joint 17 is provided at the end of the idle shaft 16, a fixed side inlet 33 of the rotary joint 17 is connected to a hydraulic pressure supply pipe 34, and an oil outlet 35 of the rotary joint 17 is connected to a through hole 36.
It communicates with the oil chambers 18 and 19 via.
前記ドライブギヤ７、アイドルギヤ８、主軸ギ
ヤ９及びバツクラツシユ除去ギヤ１２，１３はハ
スバ歯車で構成してあり、ドライブギヤ７はアイ
ドルギヤ８に噛合しており、アイドルギヤ８は主
軸ギヤ９に噛合している。 The drive gear 7, idle gear 8, main shaft gear 9, and backlash removal gears 12 and 13 are constructed of helical gears, and the drive gear 7 meshes with the idle gear 8, and the idle gear 8 meshes with the main shaft gear 9. are doing.
また一方のバツクラツシユ除去ギヤ１２はドラ
イブギヤ７に噛合しており、他方のバツクラツシ
ユ除去ギヤ１３は主軸ギヤ９に噛合している。 Further, one backlash removal gear 12 meshes with the drive gear 7, and the other backlash removal gear 13 meshes with the main shaft gear 9.
次に作動を説明する。 Next, the operation will be explained.
回転ジヨイント１７から通孔３６を介して油室
１８，１９に圧油を作用させることによりバツク
ラツシユ除去ギヤ１２，１３を矢印方向に移動さ
せる。このとき各ギヤ７，８，９，１２，１３は
ハスバ歯車になつているためドライブギヤ７とア
イドルギヤ８はイの歯面で、バツクラツシユ除去
ギヤ１２とドライブギヤ７とはロの歯面で噛み合
うことになり、ドライブギヤ７、アイドルギヤ８
のバツクラツシユが除去さる。 By applying pressure oil from the rotation joint 17 to the oil chambers 18 and 19 through the through hole 36, the backlash removal gears 12 and 13 are moved in the direction of the arrow. At this time, since the gears 7, 8, 9, 12, and 13 are helical gears, the drive gear 7 and idle gear 8 have tooth surfaces A, and the backlash removal gear 12 and drive gear 7 have tooth surfaces B. They will mesh, drive gear 7 and idle gear 8.
The backup is removed.
同様にしてアイドルギヤ８と主軸ギヤ９との間
のバツクラツシユも除去され、主軸ヘツド１，２
内のバツクラツシユが完全に除去される。 In the same way, the backlash between the idle gear 8 and the main shaft gear 9 is also removed, and the main shaft head 1, 2
The backup within is completely removed.
左右のチヤツク２１，２２でクランクシヤフト
２３を把持するとき、上記のようにバツクラツシ
ユを除去し、クランプ完了後主軸回転時バツクラ
ツシユ除去圧を除くとバツクラツシユ除去ギヤ１
２とドライブギヤ７とのプリロードがなくなるが
ドライブギヤ７とアイドルギヤ８とは駆動トルク
がかかつているためイの歯面は常に接触状態が保
たれる。 When the crankshaft 23 is gripped by the left and right chucks 21 and 22, the backlash is removed as described above, and after the clamping is completed, the backlash removal pressure is removed when the main shaft rotates, and the backlash removal gear 1 is activated.
Although the preload between the drive gear 7 and the drive gear 7 is eliminated, since the drive torque is applied to the drive gear 7 and the idle gear 8, the tooth surfaces of the gear A are always kept in contact.
考案の効果
本考案は上記のようになるから、ワーククラン
プ時バツクラツシユ除去ギヤ１２，１３をアイド
ラギヤ８から離間させる方向に移動してドライブ
ギヤ７とアイドラギヤ８との間のバツクラツシユ
及びアイドラギヤ８と主軸ギヤ９との間のバツク
ラツシユを除去し主軸ヘツド１，２内のバツクラ
ツシユを完全に除去することができる。 Effects of the invention Since the present invention is as described above, the backlash removal gears 12 and 13 are moved in the direction away from the idler gear 8 when clamping the workpiece, and the backlash between the drive gear 7 and the idler gear 8 and the idler gear 8 and the main shaft gear are removed. 9, and the backlash within the spindle heads 1 and 2 can be completely removed.
このために左右のチヤツク２１，２２の位相ず
れが防止されて高精度の加工を行うことができ
る。 This prevents a phase shift between the left and right chucks 21 and 22, allowing highly accurate machining.
第１図は旋削機械の正面図、第２図は同側面
図、第３図は本考案一実旋例の縦断面図、第４図
はギヤ噛合の説明図である。
７はドライブギヤ、８はアイドラギヤ、９は主
軸ギヤ、１２，１３はバツクラツシユ除去ギヤ。
FIG. 1 is a front view of a turning machine, FIG. 2 is a side view of the same, FIG. 3 is a longitudinal cross-sectional view of an actual turning example of the present invention, and FIG. 4 is an explanatory diagram of gear meshing. 7 is a drive gear, 8 is an idler gear, 9 is a main shaft gear, and 12 and 13 are backlash removal gears.
Claims (1)
にチヤツク２１，２２を設けた左右の主軸ヘツド
１，２と、これと平行にしたドライブシヤフト３
を有し、各主軸ヘツド１，２の主軸１１，１１に
固着した主軸ギヤ９，９のそれぞれに、アイドラ
ギア８，８を介してドライブシヤフト３に固着し
たドライブギヤ７，７を噛合してなる主軸ヘツド
装置において、上記両アイドラギヤ８，８のそれ
ぞれの両側方に、バツクラツシユ除去ギヤ１２，
１３をアイドラギヤ８とは共回り可能に且つ軸線
方向には移動可能に設け、一方のバツクラツシユ
除去ギヤ１２をドライブギヤ７に噛合させると共
に他方のバツクラツシユ除去ギヤ１３を主軸ギヤ
９に噛合させ、各ドライドギヤ７、アイドラギヤ
８、主軸ギヤ９及びバツクラツシユ除去ギヤ１
２，１３をハスバ歯車としたことを特徴とする主
軸ヘツド装置。Left and right spindle heads 1 and 2 which face each other on the same axis and have chucks 21 and 22 at their respective opposing ends, and a drive shaft 3 which is parallel to the left and right spindle heads 1 and 2.
The main shaft gears 9, 9 fixed to the main shafts 11, 11 of the respective main shaft heads 1, 2 are meshed with drive gears 7, 7 fixed to the drive shaft 3 via idler gears 8, 8. In the spindle head device, backlash removal gears 12,
13 is provided to be able to rotate together with the idler gear 8 and to be movable in the axial direction, one backlash removal gear 12 is meshed with the drive gear 7, and the other backlash removal gear 13 is meshed with the main shaft gear 9. 7. Idler gear 8, main shaft gear 9 and backlash removal gear 1
A spindle head device characterized in that 2 and 13 are helical gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984195935U JPH0318081Y2 (en) | 1984-12-26 | 1984-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984195935U JPH0318081Y2 (en) | 1984-12-26 | 1984-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61112803U JPS61112803U (en) | 1986-07-17 |
| JPH0318081Y2 true JPH0318081Y2 (en) | 1991-04-17 |
Family
ID=30753562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984195935U Expired JPH0318081Y2 (en) | 1984-12-26 | 1984-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0318081Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014223757A1 (en) * | 2014-11-20 | 2016-05-25 | Deckel Maho Pfronten Gmbh | Machining unit for a machine tool and machine tool with such a processing unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5628349U (en) * | 1979-08-09 | 1981-03-17 |
-
1984
- 1984-12-26 JP JP1984195935U patent/JPH0318081Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5628349U (en) * | 1979-08-09 | 1981-03-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61112803U (en) | 1986-07-17 |
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