JPS591140A - Concentric working machine - Google Patents
Concentric working machineInfo
- Publication number
- JPS591140A JPS591140A JP10791782A JP10791782A JPS591140A JP S591140 A JPS591140 A JP S591140A JP 10791782 A JP10791782 A JP 10791782A JP 10791782 A JP10791782 A JP 10791782A JP S591140 A JPS591140 A JP S591140A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- shaft
- hole
- concentric
- work
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/28—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding outer surfaces concentrically to bores, involving additional centering means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、平面研削盤を用い、パイプ状被加工物の細径
穴を基準として、被加工物の外周を研削することにより
被加工物の穴と外周の同心加工を行なう細径穴パイプ等
の同心加工機に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention uses a surface grinder to grind the outer periphery of a pipe-shaped workpiece using a small diameter hole as a reference, thereby performing concentric machining of the hole and outer periphery of the workpiece. The present invention relates to a concentric processing machine for processing small-diameter pipes, etc.
一般にパイプ状の被加工物を同心加工する場合、第１図
に側面図を示すように、被加工物１の穴２を基準として
外周部の偏心部分３を取除くようにして行なわれる。Generally, when concentrically machining a pipe-shaped workpiece, as shown in a side view in FIG. 1, the eccentric portion 3 at the outer circumference is removed with reference to the hole 2 of the workpiece 1.
従来の同心加工機の例を第２図、第３図、第４図に示す
概念図を用いて説明する。An example of a conventional concentric processing machine will be explained using conceptual diagrams shown in FIGS. 2, 3, and 4.
第２図は円筒研削盤を用いた穴基準式の同心加工機を示
す。パイプ状被加工物１の穴２に一対のセンタ５で４の
部分において支持してセンタモミを行ない、被加工物１
の外周を砥石６で円筒研削を行なうものである。この機
器では被加工物１の穴径が１ｍｍ以下のものについては
、センタ５で支持できないため、細径穴の被加り物１の
同心加工には適用できないという欠点がある。Figure 2 shows a hole-based concentric processing machine using a cylindrical grinder. A pair of centers 5 are used to support the hole 2 of the pipe-shaped workpiece 1 at the part 4, and the workpiece 1 is
A grindstone 6 performs cylindrical grinding on the outer periphery of the wheel. This device has the disadvantage that it cannot be applied to concentric machining of workpieces 1 with small diameter holes because the center 5 cannot support workpieces 1 with hole diameters of 1 mm or less.
第３図は旋削による同心加工機の例である。。・〈イブ
状被加工物１をコレットチャック７でワークヘッド８に
保持し、Ａ側よりＩＴＶカメラ９を介しモニターＴｖ１
０で穴２を拡大して観察し、主軸中心１１と穴２の中心
が一致するようワークヘッド８の位置調整機構１２を操
作する。しかる後主軸１３を回転させ、主軸１３に取り
付けられた２個のバイト１４で被加工物１の外周部を切
削し同心加工を行う。しかしながら本機においては、穴
２を拡大観察しているため、細径穴パイプでも同心加工
は可能であるが、バイト１４による切削であるため、加
工面あらさが平均２μｍｎｍａｘと大きく、また被加工
物１を取り付けてからワークヘッド８の位置調整を行い
、その後に切削工程へ移行するという、位置調整と切削
工程の繰り返しが常に必要であるため生産効率が悪いと
いう欠点がある。FIG. 3 is an example of a concentric turning machine. .・<Hold the ebb-shaped workpiece 1 on the work head 8 with the collet chuck 7, and monitor Tv1 from the A side via the ITV camera 9.
0, the hole 2 is enlarged and observed, and the position adjustment mechanism 12 of the work head 8 is operated so that the spindle center 11 and the center of the hole 2 coincide. Thereafter, the main shaft 13 is rotated, and the outer circumferential portion of the workpiece 1 is cut using two cutting tools 14 attached to the main shaft 13 to perform concentric machining. However, with this machine, since the hole 2 is observed under magnification, concentric machining is possible even with a pipe with a small diameter hole, but since cutting is performed using the cutting tool 14, the machined surface roughness is as large as 2 μmnmax on average, and the workpiece 1, the position of the work head 8 is adjusted, and then the cutting process is started.The position adjustment and cutting process are always required to be repeated, resulting in poor production efficiency.
第４図は細径穴パイプでも同心加工が行えるようにした
円筒研削盤による同心加「１機の例である。Figure 4 shows an example of concentric machining using a cylindrical grinder that can perform concentric machining even on pipes with small diameter holes.
パイプ状被加工物１を主軸回転中心１１に対して偏心保
持が可能な４つ爪ヂャノク１６によって保持１．、ＩＴ
Ｖカメラ１２を介してモニターＴＶ１０で穴２を拡大観
察しながら、主軸の回転中心１１と穴２の中心を一致さ
せた後に、被加工物１の外周を片持支持の形で砥石６に
より円筒研削を行ない、パイプ状被加工物１の穴２と外
周、の同心加工を行なう方式である。この機器において
もやはり被加工物１を加工機に取り付けた後に位置調整
、研削加工へと移行するため生産効率は悪い。The pipe-shaped workpiece 1 is held by a four-jaw lock 16 that can be held eccentrically with respect to the spindle rotation center 11.1. , I.T.
While observing the hole 2 under magnification on the monitor TV 10 through the V-camera 12, after aligning the rotation center 11 of the spindle with the center of the hole 2, the outer periphery of the workpiece 1 is cut into a cylinder by the grindstone 6 in a cantilevered manner. This is a method of grinding and concentrically machining the hole 2 and the outer periphery of the pipe-shaped workpiece 1. In this device as well, the production efficiency is poor because the workpiece 1 is attached to the processing machine and then position adjustment and grinding are performed.
以上述べたように従来の同心加工機では、パイプ状の被
加工物の穴が小さい場合には同心加工が不可能であった
り、あるいは同心加工は可能であっても生産効率が悪い
といった欠点があった。As mentioned above, conventional concentric processing machines have the disadvantage that concentric processing is not possible when the hole in a pipe-shaped workpiece is small, or that production efficiency is poor even if concentric processing is possible. there were.
したがって、本発明は、パイプ状被加工物の穴径が１ｍ
ｍ以下の微***の場合においても、生産効率よく同心加
工が行なえ、加工機械に汎用的な平面研削盤を用いて高
精度な同心加−［を可能とする同心加工機を提供するこ
とを目的とする。Therefore, in the present invention, the hole diameter of the pipe-shaped workpiece is 1 m.
The purpose of the present invention is to provide a concentric machining machine that can perform concentric machining with high production efficiency even in the case of micro holes of less than m in size, and that enables highly accurate concentric machining using a general-purpose surface grinder as the machining machine. shall be.
そのために本発明では、被加工物との軸心調整が可能な
被加工物保持部を端部に有する回転保持軸を、７字溝を
有する軸受部に載置して回転、させるようにしており、
このような構成によって、微***を有する被加工物の加
工が可能で、さらに、回転保持軸だけを取りはずして、
研削り程と被加工物の軸心調整の工程とをそれぞれ独立
に行なうことを可能とし、高い生産効率が得られるもの
である。To this end, in the present invention, a rotating holding shaft having a workpiece holding part at the end that can adjust the axis with respect to the workpiece is placed on a bearing part having a 7-shaped groove and rotated. Ori,
With this configuration, it is possible to process workpieces with micro holes, and furthermore, by removing only the rotation holding shaft,
This makes it possible to perform the grinding process and the process of adjusting the axis of the workpiece independently, resulting in high production efficiency.
以下図面を用いて本発明の一実施例の詳細を述べる。An embodiment of the present invention will be described in detail below with reference to the drawings.
第６図は本発明の一実施例の全体構成図である。FIG. 6 is an overall configuration diagram of an embodiment of the present invention.
ベース３０と一体になった４点支持軸受３１が砥石３２
０回転軸と平行になるよう平面（υｆ削盤のテーブル３
３上におかれている。A four-point support bearing 31 integrated with a base 30 is a grindstone 32
A plane parallel to the 0-rotation axis (Table 3 of the υf cutting machine)
It is placed above 3.
１対のＶブロック３４により保持された細径穴２を有し
たパイプ状被加工物１は、調整ねじ３６でＶブロック３
４ごと軸３６（回転保持軸）の端面上で軸３６の回転中
心と自身の穴中心が一致するように位置調整され、ネジ
３７によって固定される。この軸３６が１０述の４点支
持軸受３１にベルト３８．プーリ３９を介して取り例け
られており、モータ４０により矢印の方向へ回転するよ
うになっている。ここで軸３６を回転させながら、砥石
３２により上方から被加工物１の半径方向へ数μｍステ
ップで９ノリ込み、被加工物１の外周部の４ｉ１Ｆ削を
行なうと、被加Ｉ′、物１の最大偏心部分より外周の４
ｉｌｌ削が進行するため、第１図のフレ部分３の除去が
行なわれ、被加工物１の穴２と外周が同心となる。A pipe-shaped workpiece 1 having a small diameter hole 2 held by a pair of V-blocks 34 is fixed to the V-block 3 by an adjusting screw 36.
The position of each shaft 4 is adjusted on the end face of the shaft 36 (rotation holding shaft) so that the center of rotation of the shaft 36 coincides with the center of its own hole, and is fixed with a screw 37. This shaft 36 is attached to the four-point support bearing 31 described in 10 with the belt 38. It is mounted via a pulley 39 and rotated by a motor 40 in the direction of the arrow. Here, while rotating the shaft 36, the grindstone 32 is used to grind 9 grooves from above in the radial direction of the workpiece 1 in steps of several μm to perform 4i1F cutting of the outer circumference of the workpiece 1. 4 on the outer periphery from the maximum eccentric part of 1
As ill cutting progresses, the flared portion 3 shown in FIG. 1 is removed, and the hole 2 of the workpiece 1 and the outer periphery become concentric.
第６図ａは４点支持軸受３１の構造図、第６図すに第６
図乙の入方向からの側面図である。Figure 6a is a structural diagram of the four-point support bearing 31;
It is a side view from the entrance direction of figure B.
４点支持軸受３１は、受圧面４１が２個のＶブロック状
４２構造となっている。軸３６と４点支持軸受３１は４
か所で完全に線接触となるため理論上の軸ふれは、軸３
６の加工精度のみとなりふれの非常に少ない回転が可能
となる。また軸３６はベルト等によって受圧面４１に押
しつけられるため、ころがり軸受などを用いた場合と異
なり軸受３１より自由に取りはずし、取り付けが可能で
ある。In the four-point support bearing 31, the pressure receiving surface 41 has a structure of two V-blocks 42. The shaft 36 and the four-point support bearing 31 are 4
Since there is complete line contact at some points, the theoretical shaft runout is
The machining accuracy is only 6, making it possible to rotate with very little runout. Furthermore, since the shaft 36 is pressed against the pressure receiving surface 41 by a belt or the like, it can be freely removed from and attached to the bearing 31, unlike the case where a rolling bearing or the like is used.
４点支持軸受３１の材質は、超硬合金、焼き入れ鋼、ル
ビー、ダイヤモンド等の耐摩耗性の、大きい糊料を用い
る。また４点支持軸受３１は第６図ａ、ｂのように一体
構造でなくても、全体として２個のＶブロック構成とな
れば良いため、第７図ａに示すように先端が高耐摩耗性
拐Ｆｌからなるねじ４３をホルダー４４に９００で配置
して軸３６を支持する構成、あるいは第７図すに示すよ
うに受圧部分４５だけを高耐摩耗性相Ｈで作る構成も考
えられる。The material of the four-point support bearing 31 is a wear-resistant, large glue such as cemented carbide, hardened steel, ruby, or diamond. In addition, the four-point support bearing 31 does not have to be an integral structure as shown in FIGS. 6a and 6b, but only needs to have a two-V block configuration as a whole, so the tip has a high wear resistance as shown in FIG. 7a. A configuration in which the shaft 36 is supported by disposing the screw 43 made of synthetic fiber Fl in the holder 44 at 900, or a configuration in which only the pressure receiving portion 45 is made of a highly wear-resistant phase H as shown in FIG. 7 is also conceivable.
第８図に被加工物の保持構成を示す。FIG. 8 shows the structure for holding the workpiece.
被加工物１は１対のＶグロック３４によって挾まれ、ね
じ４６をしめつけることによりＶブロック３４が互いに
近づき固定される。この場合Ｖ溝がＶブロック底面Ｂに
対して垂直に加工されているため、被加工物１はＶブロ
ック底面Ｂに対して垂直に保持される。４７Ｆｉ第５図
中の軸３６に固定するための穴であって、図示していな
い雄ネジをこの穴４７に挿通し、軸３６側に形成された
雌ネジにしめつけられる。The workpiece 1 is held between a pair of V blocks 34, and by tightening the screws 46, the V blocks 34 are brought close to each other and fixed. In this case, since the V groove is machined perpendicularly to the bottom surface B of the V block, the workpiece 1 is held perpendicularly to the bottom surface B of the V block. 47Fi is a hole for fixing to the shaft 36 in FIG. 5, and a male screw (not shown) is inserted into this hole 47 and tightened to a female screw formed on the shaft 36 side.
本実施例では液加■ユ物の保持に一対のＶブロックを使
用したが、精密なコレットチャックを用いることも可能
である。In this embodiment, a pair of V-blocks are used to hold the liquid-added object, but a precision collet chuck may also be used.
第９図に被加工物１の細径穴中心と軸３６の回転中心を
一致させるための構造を示す。FIG. 9 shows a structure for aligning the center of the small diameter hole of the workpiece 1 with the rotation center of the shaft 36.
軸３６はＶブロックを固定する側Ｃが穴グリしてあり、
穴グリ部分の円周には円周を４等配した位置にねじ３５
が配置されている。この穴グリした部分へ第８図に示し
たＶブロック３４と一体となった液加［物１を第１０図
に示すように入れてネジ３７をゆるくしめ、軸３６を回
転させながらＩＴＶカメラ４８を介しモニターＴＶ４９
で被加工物１の穴２を拡大して観察して、穴のフレがな
くなるようにネジ３６を動かし、■ブロック３４を動か
して被加工物１の穴中心と軸３θの回転中心を一致させ
、しかる後ネジ３７によりＶブロック３４を軸３６に固
定する。The shaft 36 has a hole drilled on the side C that fixes the V block.
Install screws 35 at four evenly spaced positions around the circumference of the hole boring part.
is located. Insert the liquid additive 1 integrated with the V-block 34 shown in FIG. 8 into this bored part as shown in FIG. Monitor through TV49
Enlarge and observe the hole 2 of the workpiece 1 with , move the screw 36 so that there is no deflection in the hole, and move the block 34 to match the center of the hole of the workpiece 1 with the center of rotation of the axis 3θ. After that, the V block 34 is fixed to the shaft 36 with the screw 37.
本実施例においては、４点支持軸受３１を用いて軸３６
の回転を行なっているため、研削後の外周真円度１面あ
らさが良好なばかりでなく、第５図中、プーリー３９よ
りベルト３８をはずすことにより、被加工物１と一体と
なった軸３６が４点支持軸受３１より自由に取りはずし
が行なえる。In this embodiment, a four-point support bearing 31 is used to support the shaft 36.
Because of the rotation of 36 can be freely removed from the four-point support bearing 31.
また再度軸３６を取り付けても全く以前の状態となるた
め、軸３６の交換による軸３６の回転中心と被加工物の
穴２の中心ずれは生じない。このため軸３６の回転中心
と被加工物１の穴２の中心を一致させる作業を同型の別
個の軸受上で行なえば、位置調整作業は研削作業と全く
独立して行なうことができ、研削作業は、すてに液加−
［物１の位置調整のなされた軸３６を、平面研削盤のテ
ーブル３３に固定された４点支持軸受３１上に取り付け
るだけで行なえる。すなわち、軸３６と液加を物１の位
置調整作業と研削作業が並列に別々に進行できるため、
従来のように両作業を順次繰り返すのに比し、生産効率
が犬ＩＪに向上する。Further, even if the shaft 36 is reattached, the state will be exactly as before, so that the center of rotation of the shaft 36 and the center of the hole 2 of the workpiece will not be misaligned due to replacement of the shaft 36. Therefore, if the work of aligning the center of rotation of the shaft 36 with the center of the hole 2 of the workpiece 1 is performed on separate bearings of the same type, the position adjustment work can be performed completely independently of the grinding work, and the grinding work can be performed completely independently of the grinding work. Add liquid to all
[This can be done simply by attaching the shaft 36 on which the position of the object 1 has been adjusted onto the four-point support bearing 31 fixed to the table 33 of the surface grinder. That is, since the position adjustment work of the shaft 36 and the liquid addition object 1 and the grinding work can be performed separately in parallel,
Compared to the conventional method of repeating both operations sequentially, production efficiency is dramatically improved.
以上説明してきたように本発明によれば、被加工物との
軸心調整が可能な被加工物保持部を端部に有する回転保
持軸を、７字溝を有する軸受部の７字溝に載置するもの
であるため、被加工物はその穴を両端から保持されるこ
とはなくなり、微***を有する液加Ｃ物であっても十分
保持できて研削は可能であり、さらに、回転保持軸の軸
受部への着脱が容易であるため、回転保持軸だけを取り
はずして研削作業とは別に被加工物と回転保持軸との軸
心調整作業が可能となり、研削作業と軸心調整作業を別
王程とできるため、大量の被加工物の研削作業を行なう
ときには非常に高い生産、効率が得られる。As explained above, according to the present invention, a rotation holding shaft having a workpiece holding part at the end that can adjust the axis with respect to the workpiece is inserted into the figure 7 groove of the bearing part having the figure 7 groove. Since the workpiece is placed on the machine, the workpiece is no longer held from both ends of the hole, and even liquid-added C objects with minute holes can be held sufficiently and grinding is possible. Since the shaft can be easily attached to and removed from the bearing, it is possible to remove only the rotation holding shaft and adjust the axial center between the workpiece and the rotation holding shaft separately from the grinding operation. Since it can be done in a single process, extremely high production and efficiency can be achieved when grinding a large number of workpieces.
第１図は同心加工の原理を示す図、第２図〜第４図は従
来の同心加工機を示す概略構成図、第５図は本発明の一
実施例における同心加工機を示す概略斜視図、第６図（
ＩＬ） 、 （ｂ）は軸受部の構造斜視図及び側面図、
第７図（ＩＬ） 、 （ｂ）は軸受部の他の実施例を示
す側面図、第８図、第９図は回転保持軸を示す要部斜視
図、第１０図は回転保持軸の軸心調整作業の説明図であ
る。
１・・・・・・被加工物、２・・・・・・穴１．３ｏ・
・ｍヘース、３１・・・・・・４点支持軸受、３２・・
・・・・砥石、３３・・川・テーブル、３４・・・・・
・Ｖブロック、３５・旧・・調整ねじ、３６・・・・・
・回転保持軸、３７・・・・・・ネジ、３８・・・・・
・ベルト、３９・・曲プーリ、４０・・・・・・モータ
、４１・・・・・・受圧部、４２・・・・・・Ｖブロッ
ク、４６・・・・ねｌ、、４７・・・・・・穴、 ４８
・・・・・・Ｉ Ｔ Ｖカメラ、４９・・・・・・モ
ニターＴＶ０
代理人の氏名 弁理士 中 尾 赦 男 はが１名第１
図
第２図
第３図
第４図
第５図
第６図
（（１１／ム）
第 ７ 図
（Ｑ ） ／Ａ）蘂８図
、５＋４
第９図
第１０図
ｄFig. 1 is a diagram showing the principle of concentric processing, Figs. 2 to 4 are schematic configuration diagrams showing a conventional concentric processing machine, and Fig. 5 is a schematic perspective view showing a concentric processing machine in an embodiment of the present invention. , Figure 6 (
IL), (b) is a structural perspective view and side view of the bearing part,
Figures 7 (IL) and (b) are side views showing other embodiments of the bearing section, Figures 8 and 9 are perspective views of main parts showing the rotation holding shaft, and Figure 10 is the axis of the rotation holding shaft. It is an explanatory diagram of cardiac adjustment work. 1... Workpiece, 2... Hole 1.3o.
・m Heath, 31...4-point support bearing, 32...
...Whetstone, 33...River table, 34...
・V block, 35・Old adjustment screw, 36...
・Rotation holding shaft, 37... Screw, 38...
・Belt, 39...Curved pulley, 40...Motor, 41...Pressure receiving part, 42...V block, 46...Nel,, 47... ...hole, 48
...I TV camera, 49...Monitor TV0 Name of agent Patent attorney Masao Nakao Haga 1st person
Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 ((11/mu) Figure 7 (Q ) /A) Leg 8, 5+4 Figure 9 Figure 10 d
Claims (4)
端部に有する回転保持軸と、前記回転保持軸が載置され
るＶ字溝を有する軸受部と、前記回転保持軸を回転させ
る駆動部と、回転軸がｉｆＩ記回転保持軸と平行になる
ように配置され、前記被加工物を研削する回転研削部と
を備えてなる同心加工機。(1) A rotational holding shaft having a workpiece holding part at an end that can adjust the axis with respect to the workpiece, a bearing part having a V-shaped groove in which the rotational holding shaft is placed, and the rotational holding shaft. A concentric processing machine comprising: a drive section that rotates a shaft; and a rotary grinding section that grinds the workpiece, the rotary shaft being arranged so as to be parallel to the ifI rotation holding shaft.
接することを特徴とする特許請求の範囲第１項記載の同
心加工機。(2) The concentric processing machine according to claim 1, wherein the rotation holding shaft contacts the V-shaped groove of the bearing portion at four locations.
形成された２個のＶ字状ブロックと、前記Ｖ字状ブロッ
クが装着位置可動に装着される装着部とからなることを
特徴とする特許請求の範囲第１項記載の同心加工機。(3) The workpiece holding section consists of two V-shaped blocks in which V-shaped grooves are formed to hold the workpiece, and a mounting section on which the V-shaped blocks are mounted movably. A concentric processing machine according to claim 1, characterized in that:
の複数個所に可動部組が設けられてなることを特徴とす
る特許請求、の範囲第３項記載の同心加工機。(4) The concentric processing machine according to claim 3, wherein the mounting portion is a concave body, and movable part sets are provided at a plurality of locations on the peripheral wall of the ■-shaped body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10791782A JPS591140A (en) | 1982-06-23 | 1982-06-23 | Concentric working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10791782A JPS591140A (en) | 1982-06-23 | 1982-06-23 | Concentric working machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS591140A true JPS591140A (en) | 1984-01-06 |
| JPS6328744B2 JPS6328744B2 (en) | 1988-06-09 |
Family
ID=14471322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10791782A Granted JPS591140A (en) | 1982-06-23 | 1982-06-23 | Concentric working machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591140A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416583A (en) * | 2011-11-02 | 2012-04-18 | 山东常林机械集团股份有限公司 | Device and method for machining thin-wall sleeve type hydraulic pieces |
| JP2015502922A (en) * | 2011-11-10 | 2015-01-29 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Method for producing formic acid by reaction of carbon dioxide with hydrogen |
| CN104842272A (en) * | 2015-06-01 | 2015-08-19 | 马宁 | Grinding machine auxiliary mechanism for machining of metal pipes |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63171957A (en) * | 1987-01-08 | 1988-07-15 | 第一鋼業株式会社 | Method and apparatus for transporting materials on high place working site |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS486679U (en) * | 1971-06-07 | 1973-01-25 | ||
| JPS4822078U (en) * | 1971-07-21 | 1973-03-13 | ||
| JPS5379488U (en) * | 1976-12-03 | 1978-07-01 |
-
1982
- 1982-06-23 JP JP10791782A patent/JPS591140A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS486679U (en) * | 1971-06-07 | 1973-01-25 | ||
| JPS4822078U (en) * | 1971-07-21 | 1973-03-13 | ||
| JPS5379488U (en) * | 1976-12-03 | 1978-07-01 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102416583A (en) * | 2011-11-02 | 2012-04-18 | 山东常林机械集团股份有限公司 | Device and method for machining thin-wall sleeve type hydraulic pieces |
| JP2015502922A (en) * | 2011-11-10 | 2015-01-29 | ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ | Method for producing formic acid by reaction of carbon dioxide with hydrogen |
| CN104842272A (en) * | 2015-06-01 | 2015-08-19 | 马宁 | Grinding machine auxiliary mechanism for machining of metal pipes |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6328744B2 (en) | 1988-06-09 |
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