WO2018021578A1 - 構造体及び回転シリンダ - Google Patents
構造体及び回転シリンダ Download PDFInfo
- Publication number
- WO2018021578A1 WO2018021578A1 PCT/JP2017/027622 JP2017027622W WO2018021578A1 WO 2018021578 A1 WO2018021578 A1 WO 2018021578A1 JP 2017027622 W JP2017027622 W JP 2017027622W WO 2018021578 A1 WO2018021578 A1 WO 2018021578A1
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- WIPO (PCT)
- Prior art keywords
- cylinder
- annular
- cylindrical
- peripheral surface
- fitting recess
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
- B23B31/302—Hydraulic equipment, e.g. pistons, valves, rotary joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
- B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
- B23B31/305—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck the gripping means is a deformable sleeve
Definitions
- the present invention relates to a structure and a rotating cylinder.
- a cylinder body having a slide hole at a rotation center, a piston fitted into the slide hole so as to be slidable along the rotation center, and the cylinder
- a rotation support body that rotatably supports the main body via a bearing, and the cylinder main body is formed with a cylinder chamber that extends annularly around the rotation center and that opens to the slide hole.
- the piston includes an annular flange portion extending around the rotation center, and the flange portion is accommodated in the cylinder chamber and divides the cylinder chamber into first and second spaces along the rotation center.
- the outer peripheral wall of the cylinder body has a first fluid guide hole having one end opened in the first space and the other end opened in the outer peripheral surface of the cylinder body, and one end opened in the second space and the other end.
- a first fluid guide hole having one end opened in the first space and the other end opened in the outer peripheral surface of the cylinder body, and one end opened in the second space and the other end.
- Annular first and second groove portions extending around the center of rotation are formed on the inner peripheral surface of the rotation support, and the first and second groove portions are the other of the first and second fluid guide holes, respectively. It corresponds to each end part.
- the fluid is allowed to flow into the first space via the first groove and the first fluid guide hole, while the fluid is allowed to flow out of the second space via the second fluid guide hole and the second groove.
- the fluid is allowed to flow into the second space via the second fluid guide hole and the second groove portion, while the fluid is allowed to flow from the first space via the first groove portion and the first fluid guide hole.
- two pipes are provided at positions corresponding to the first groove portion and the second groove portion on the outer peripheral wall of the rotary support in the rotary cylinder as in Patent Document 1.
- a male screw portion is provided at the end of each pipe, and a screw hole having a female screw portion on the inner peripheral surface is formed in the outer peripheral wall of the rotary support, and the female screw portion of the screw hole is formed.
- the pipe and the rotary support are connected to each other by screwing the male threaded portion of the pipe into the pipe.
- the present invention has been made in view of such a point, and the object of the present invention is to take a rotating cylinder as an example and easily cause screwing of the piping to be within an appropriate range to cause seizure of components and occurrence of liquid leakage.
- An object of the present invention is to provide a structure (for example, a rotating support) that can prevent the above-described problem.
- the fluid passage portion in which the fitting recess is formed the first recess portion is formed on the inner peripheral surface of the fitting recess from the tip opening side along the cylinder center line.
- a structure including a cylindrical member having a through hole and a pipe having a second screw portion that is screwed into the first screw portion from the base end opening side of the cylindrical member.
- the structure body and the tubular member are separate from each other. Even if the cylindrical member is deformed by increasing the deformation, the deformed portion hardly affects the structure, and deformation of the structure is reduced. Therefore, the appropriate range of the screwing amount of the pipe is substantially wider than the structure in the rotating cylinder as in Patent Document 1, and the structure is excessively deformed even if the screwing work by the operator varies somewhat, or The degree of adhesion between the first and second screw parts of the pipe is not lowered, and liquid leakage from the first and second screw parts of the pipe and seizure of the structure can be prevented.
- the first and second screw portions have a tapered shape, and are a female screw portion and a male screw portion, respectively.
- an annular inner tension formed by projecting in a stepped shape so that the inner peripheral surface of the rear end side of the fitting recess has a smaller diameter than the inner peripheral surface of the opening side.
- each central portion of the cylindrical portion and the annular outer projecting portion is coincident with a tube center line of the tube member.
- the center portion of the cylindrical portion is eccentric with respect to the cylinder center line of the cylinder member.
- the inner circumferential surface of the annular inner overhanging portion and the outer circumferential surface of the cylindrical portion respectively extend over the entire circumference.
- a ring-shaped first seal member made of a rubber material that comes into contact is provided, and an outer peripheral portion of the annular outer projecting portion gradually approaches the tube center line of the tube member as it goes to the distal end side of the tube member.
- annular inclined surface is formed so as to be inclined, Between the annular inner projecting portion and the annular inclined surface, the annular inner projecting portion and the annular inclined surface are in contact with each other over the entire circumference, and the outer peripheral portion is the annular portion of the fitting recess.
- An annular second seal member made of a rubber material that is in contact with the entire circumference of the inner circumferential surface of the portion excluding the inner overhanging portion is provided.
- a cylinder main body for bearing a piston and a rotation support for bearing the cylinder main body, and when the fluid is pressed into the cylinder chamber provided between the rotation support and the cylinder main body
- the rotary cylinder is configured such that the cylinder body rotates about a rotation axis and the piston is slidable along the rotation axis.
- a cylinder body having a slide hole at the center of rotation, a piston fitted into the slide hole so as to be slidable along the center of rotation, and a rotation support for rotatably supporting the cylinder body around the center of rotation.
- a cylinder chamber that extends annularly around the rotation center and opens in the slide hole, the piston extends annularly around the rotation center, and A flange portion that is accommodated in the cylinder chamber and divides the cylinder chamber into first and second spaces is provided, and the cylinder body and the rotation support body allow fluid to flow into and out of the first and second spaces.
- a fluid in / out means for sliding the piston along the rotation center, and one end of the fluid in / out means in the first or second space.
- a rotating cylinder characterized by comprising:
- FIG. 2 is a view corresponding to FIG. 1 showing a state where a piston is slidingly moved.
- FIG. 4 is a view taken along arrow IV in FIG. 2.
- FIG. 5 is a sectional view taken along line VV in FIG. 4.
- FIG. 6 is a view corresponding to FIG. 5 according to Embodiment 2 of the present invention.
- FIG. 7 is a sectional view taken along line VII-VII in FIG. 6.
- the chuck is attached to a machine tool such as a lathe and rotatably supports the chuck device and performs a gripping operation or a gripping state releasing operation by the chuck device.
- a machine tool such as a lathe
- a description will be given by taking a rotating cylinder as an example.
- Embodiment 1 of the Invention 1 and 2 show a rotating cylinder 1 according to Embodiment 1 of the present invention.
- the rotating cylinder 1 rotatably supports a chuck device (not shown) attached to a machine tool such as a lathe and performs a gripping operation or a releasing operation of the gripping state by the chuck device.
- a cylinder body 2 having a T-shape is provided.
- a slide hole 20 that opens at both ends is formed at the rotation center C1 of the cylinder body 2, and a cylinder that extends annularly around the rotation center C1 and opens at the slide hole 20 is formed at the rotary disk portion 2b.
- a chamber 10 is formed.
- a ring portion 2f projecting stepwise along the rotation center C1 is formed in a continuous portion of the outer peripheral surface of the rotating disk portion 2b and the outer peripheral surface of the rotating shaft portion 2a.
- a ring-shaped stopper member 2g that protrudes in a direction perpendicular to the rotation center C1 and extends around the rotation center C1 is attached to the other end of the rotation shaft portion 2a.
- the stopper member 2g is connected to the ring portion 2f. It is a position at a predetermined interval.
- a pair of annular bearings B1 are provided between the ring portion 2f and the stopper member 2g and adjacent to the ring portion 2f and the stopper member 2g on the outer peripheral surface of the rotating shaft portion 2a. It is fitted to do.
- the piston 3 is fitted into the slide hole 20 so as to be slidable along the rotation center C1.
- the piston 3 includes a cylindrical portion 3a whose cylinder center line coincides with the rotation center C1, and a flange portion 3b that protrudes outward from the outer peripheral surface of the cylindrical portion 3a and extends annularly around the rotation center C1. As shown in FIG. 3, the flange portion 3b is accommodated in the cylinder chamber 10 and divides the cylinder chamber 10 into a first space 10a and a second space 10b in the extending direction of the rotation center C1. ing.
- a rotating support 4 is provided around the rotating shaft 2a so as to rotatably support the rotating shaft 2a around the rotation center C1.
- the rotary support 4 includes an annular portion 41 having an inner diameter that coincides with the rotational center C1, a fluid reservoir portion 44 that is attached to the lower portion of the annular portion 41 and has a vertically short cylindrical shape, and the annular portion 41. And a cover member 45 that covers the other end side of the rotary shaft portion 2a and the lid cover 3c side of the piston 3, and the annular portion 41 is pivotally supported on the rotation center C1. It has a hole 41a.
- Both the bearings B1 are interposed between a portion excluding the annular wide portion 41b on the inner peripheral surface forming the shaft support hole 41a of the annular portion 41 and the outer peripheral surface of the rotary shaft portion 2a.
- the two cylinders B1 rotate the cylinder body 2 around the rotation center C1 with respect to the rotation support 4.
- annular first groove portion 41c and a second groove portion 41d extending around the rotation center C1 are juxtaposed on the front end surface of the annular wide portion 41b, and the first groove portion 41c is the other end of the first fluid guide hole 2d.
- the second groove 41d corresponds to the other end of the second fluid guide hole 2e.
- a first fitting recess 42 that opens to the outer peripheral surface and communicates with the first groove portion 41c via the first communication portion 42a, and an outer peripheral surface.
- a second fitting recess 43 is formed which opens and communicates with the second groove portion 41d via the second communication portion 43a.
- annular inner projecting portion projecting to have a smaller diameter than the opening-side inner peripheral surface of the first fitting recess 42 is formed on the inner end surface of the first fitting recess 42. 42b is formed.
- the first fluid guide hole 2d, the first groove portion 41c, the first communication portion 42a, and the first fitting recess 42 constitute the first fluid passage portion 11a of the present invention, and the second fluid guide hole 2e.
- the second groove portion 41d, the second communication portion 43a, and the second fitting recess 43 constitute the second fluid passage portion 11b of the present invention, and one end of the first fluid passage portion 11a is the first fluid passage portion.
- One end of the second fluid passage portion 11b opens into the second space 10b, while opening into the first space 10a.
- a cylindrical member 5 having a through hole 5a penetrating along the cylinder center line C2 is fitted in the first fitting recess 42 along the cylinder center line C2.
- the cylindrical member 5 has a cylindrical portion 51 provided on the tip opening side, and an annular shape that is provided continuously to the cylindrical portion 51 and projects outward from the outer peripheral surface of the cylindrical portion 51.
- An outer projecting portion 52 is provided, and a tapered female screw portion 5 b is formed on the inner peripheral surface of the cylindrical member 5 on the proximal end opening side.
- the central portions of the cylindrical portion 51 and the annular outer projecting portion 52 coincide with the cylindrical center line C2 of the cylindrical member 5.
- a pair of flat portions 5c which are portions for hooking tools or the like, are formed on the outer peripheral surface of the cylindrical member 5 on the base end opening side in parallel with the cylindrical center line C2.
- annular inclined surface 52a is formed on the outer peripheral portion of the annular outer projecting portion 52.
- the annular inclined surface 52a is inclined so as to gradually approach the cylinder center line C2 as it goes to the distal end side of the cylinder member 5. Yes.
- An annular second seal member 7 made of a rubber material is disposed on the annular inner overhanging portion 42b side on the opening side inner peripheral surface of the first fitting recess 42, and the outer peripheral portion of the second seal member 7 is The first fitting recess 42 is in contact with the inner circumferential surface on the opening side over the entire circumference.
- the cylindrical portion 51 is fitted inside the annular inner overhanging portion 42b and the first fitting recess 42 is
- the annular outer overhanging portion 52 is inserted into a portion excluding the annular inner overhanging portion 42b, and between the inner peripheral surface of the annular inner overhanging portion 42b and the outer peripheral surface of the cylindrical portion 51.
- the first seal member 6 contacts the inner peripheral surface of the annular inner projecting portion 42b and the outer peripheral surface of the cylindrical portion 51 over the entire periphery.
- the annular outer overhanging portion 52 abuts the annular inner overhanging portion 42b, and the annular inner overhanging portion 42b
- the second seal member 7 contacts the annular inner projecting portion 42b and the annular inclined surface 52a over the entire circumference between the annular outer projecting portion 52 and the outer periphery of the second seal member 7.
- the portion contacts the entire inner circumference of the opening-side inner peripheral surface of the first fitting recess 42 (the portion excluding the annular inner projecting portion 42b of the first fitting recess 42).
- cylindrical member 5 is configured such that the retaining ring 8 is fitted into the concave groove portion 42c in a state where the annular outer projecting portion 52 is in contact with the annular inner projecting portion 42b.
- the annular outer overhanging portion 52 is sandwiched by the overhanging portion 42b so that it can be attached to the rotary support 4 and can rotate around the cylinder center line C2 with respect to the first fitting recess 42. It has become.
- a first pipe 9a having a substantially L shape in a side view that allows fluid to flow into and out of the first groove portion 41c and the second groove portion 41d.
- the 2nd piping 9b is provided on one side of the annular portion 41.
- the first pipe 9 a has a tapered male screw portion 9 c (an example of a “second screw portion” in the claims), and the male screw portion 9 c includes the first screw portion 9 c. From the base end opening side of the cylindrical member 5 fitted in the fitting concave portion 42, it is screwed into the female screw portion 5b (an example of “first screw portion” in the claims) of the cylindrical member 5. .
- the second pipe 9b has a male screw portion 9c similar to the first pipe 9a, and the male screw portion 9c is a base end opening of the cylindrical member 5 fitted in the second fitting recess 43. From the side, it is screwed into the female screw portion 5b of the cylindrical member 5.
- the first fluid passage portion 11a, the cylindrical member 5 and the first pipe 9a constitute the first fluid inlet / outlet means 12a of the present invention, while the second fluid passage portion 11b, the cylindrical member 5 and the first pipe 9a.
- Two pipes 9b constitute the second fluid in / out means 12b of the present invention, and the piston 3 allows the fluid to flow into the first space 10a by the first fluid in / out means 12a and the second fluid in / out means 12b.
- the rotation support body 4 and the cylindrical member 5 are used. Are separated from each other, even if the amount of screwing in the male threaded portion 9c of the first pipe 9a and the second pipe 9b is increased and the cylindrical member 5 is deformed, the deformed portion is attached to the rotating support 4. It is difficult to exert an influence, and the deformation of the rotary support 4 is reduced.
- the appropriate range of the screwing amount of the first pipe 9a and the second pipe 9b is substantially wider than that of the conventional rotary cylinder 1 as in Patent Document 1, and even if the screwing work by the operator varies somewhat, The support body 4 is not deformed excessively, or the degree of adhesion between the male screw portion 9c and the female screw portion 5b of the first pipe 9a and the second pipe 9b is reduced, and the first pipe 9a is eliminated. And the liquid leakage from between the external thread part 9c and the internal thread part 5b of the 2nd piping 9b, and the seizure of the rotation support body 4 and the cylinder main body 2 can be prevented.
- cylindrical member 5 is attached to the rotation support body 4 only by fitting the cylindrical member 5 into the first and second fitting concave portions 42 and 43 and fitting the retaining ring 8 into the concave groove portion 42c,
- the attachment work of the member 5 is simple, and the production cost can be kept low.
- the cylindrical member 5 is within the first and second fitting concave portions 42, 43. It becomes rotatable around the cylinder center line C2. Therefore, even if the postures of the first pipe 9a and the second pipe 9b with respect to the rotary support 4 are restricted in order to avoid interference with other structures arranged around the rotary cylinder 1, the first By rotating the cylinder member 5 around the cylinder center line C2 in a state in which the male screw portion 9c of the pipe 9a and the second pipe 9b is screwed into the female screw portion 5b, the first pipe 9a and the second pipe regardless of the screwing amount.
- Embodiment 2 of the Invention shows a rotary cylinder 1 according to Embodiment 2 of the present invention.
- the second embodiment is different from the first embodiment only in that the cylindrical member 5 and the first and second fitting recesses 42 and 43 are partially different in structure and the second seal member 7 is not used. Since the rest is the same as that of the first embodiment, only the parts different from the first embodiment will be described in detail below.
- the distal end opening side of the through hole 5a of the second embodiment has a smaller diameter than the proximal end opening side.
- the cylinder center line C3 (center portion) is eccentric with respect to the cylinder center line C2 of the cylinder member 5.
- the annular outer overhanging portion 52 of the second embodiment is formed in a region excluding the cylindrical portion 51 of the cylindrical member 5.
- An annular seal member groove 52b extending around the cylinder center line C2 is formed on the outer peripheral surface of the annular outer projecting portion 52, and the first seal member 6 is formed in the seal member groove 52b. Is fitted.
- the cylindrical portion 51 is annularly extended outwardly. Since it is caught by the part 42b, the cylinder member 5 does not rotate around the cylinder center line C2. Therefore, it is not necessary to form a portion on the outer peripheral surface of the cylindrical member 5 so that the cylindrical member 5 is not rotated by hooking a tool or the like during the screwing operation of the first and second pipes 9a and 9b. And since it is not necessary to make it protrude from the 2nd fitting recessed parts 42 and 43, the full length of the cylinder member 5 can be shortened.
- the present invention is suitable for a rotating cylinder that is attached to a machine tool such as a lathe and rotatably supports a chuck device and performs a gripping operation or a releasing operation of the gripping state by the chuck device.
- a rotating cylinder is taken as an example, and a structure (for example, a rotating support body) that can prevent the occurrence of seizure of components and occurrence of liquid leakage by simply setting the screwing amount of the piping within an appropriate range. ) Can be provided.
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Abstract
Description
前記環状内側張出部と前記環状傾斜面との間には、前記環状内側張出部と前記環状傾斜面とにそれぞれ全周に亘って接触するとともに、外周部分が前記嵌合凹部の前記環状内側張出部を除く部分の内周面に全周に亘って接触するゴム材からなる環状の第2シール部材が設けられていることを特徴とする。
図1及び図2は、本発明の実施形態1に係る回転シリンダ1を示す。該回転シリンダ1は、旋盤等の工作機械に取り付けられるチャック装置(図示せず)を回転可能に支持するとともに当該チャック装置による把持動作又は把持状態の解除動作を行うものであり、側面視で略T字状をなすシリンダ本体2を備えている。
図6及び図7は、本発明の実施形態2に係る回転シリンダ1を示す。この実施形態2では、筒部材5及び第1,第2嵌合凹部42、43の一部構造がそれぞれ異なる点と、第2シール部材7を使用しない点とが実施形態1と異なっているだけで、その他は実施形態1と同じであるため、以下、実施形態1と異なる部分のみを詳細に説明する。
に当該チャック装置による把持動作又は把持状態の解除動作を行う回転シリンダに適している。
2 シリンダ本体
3 ピストン
3b フランジ部
4 回転支持体
5 筒部材
5b 雌ネジ部
6 第1シール部材
7 第2シール部材
8 止め輪
9a 第1配管
9b 第2配管
9c 雄ネジ部
10 シリンダ室
10a 第1空間
10b 第2空間
11a 第1流体通路部
11b 第2流体通路部
12a 第1流体出入手段
12b 第2流体出入手段
20 スライド孔
42 第1嵌合凹部
43 第2嵌合凹部
42b 環状内側張出部
42c 凹条溝部
51 円筒部
52 環状外側張出部
52a 環状傾斜面
C1 回転中心
C2 筒中心線
C3 筒中心線(中心部分)
Claims (8)
- 嵌合凹部が形成された流体通路部と、
前記嵌合凹部に対して筒中心線に沿って先端開口側から嵌合するとともに内周面に第1ネジ部が形成された貫通孔を有する筒部材と、
該筒部材の基端開口側から前記第1ネジ部に螺合させる第2ネジ部を有する配管と、
を備える、構造体。 - 前記第1及び第2ネジ部は、テーパ状を有し、それぞれ雌ネジ部及び雄ネジ部である、
請求項1に記載の構造体。 - 前記嵌合凹部の内周面には、当該嵌合凹部の奥端側内周面が開口側内周面より小径となるように段差状に張り出すことで形成された環状内側張出部と、該環状内側張出部より前記嵌合凹部の開口側に形成され、且つ、前記環状内側張出部に沿って環状に延びる凹条溝部とが設けられ、
前記筒部材は、先端開口側に設けられた円筒部と、該円筒部に連続して設けられ、当該円筒部の外周面から外側方に張り出す環状外側張出部とを備え、前記環状内側張出部の内方に前記円筒部を嵌挿させるとともに前記嵌合凹部の前記環状内側張出部を除く部分に前記環状外側張出部を嵌挿させ、且つ、前記凹条溝部に止め輪を嵌め込んで当該止め輪と前記環状内側張出部とで前記環状外側張出部を挟み込むことにより取り付けられるよう構成されている、
請求項1又は請求項2に記載の構造体。 - 前記円筒部及び前記環状外側張出部の各中心部分が前記筒部材の筒中心線に一致していることを特徴とする、
請求項3に記載の構造体。 - 前記円筒部の中心部分が前記筒部材の筒中心線に対して偏心していることを特徴とする、
請求項3又は請求項4に記載の構造体。 - 前記環状内側張出部の内周面と前記円筒部の外周面との間には、前記環状内側張出部の内周面と前記円筒部の外周面とにそれぞれ全周に亘って接触するゴム材からなるリング状の第1シール部材が設けられ、
前記環状外側張出部の外周部分には、前記筒部材の先端側に行くにつれて次第に当該筒部材の筒中心線に接近するように傾斜する環状傾斜面が形成され、
前記環状内側張出部と前記環状傾斜面との間には、前記環状内側張出部と前記環状傾斜面とにそれぞれ全周に亘って接触するとともに、外周部分が前記嵌合凹部の前記環状内側張出部を除く部分の内周面に全周に亘って接触するゴム材からなる環状の第2シール部材が設けられていることを特徴とする、
請求項3~請求項5の何れか1つに記載の構造体。 - ピストンを軸受けするシリンダ本体と、前記シリンダ本体を軸受けする回転支持体とを備え、前記回転支持体と前記シリンダ本体との間に設けられるシリンダ室に流体を流し込んで前記ピストンを押圧すると、前記シリンダ本体が回転軸を中心に回転し且つ前記ピストンが前記回転軸に沿ってスライド可能に構成され、
請求項1~請求項6の何れか1つに記載の構造体を有することを特徴とする、
回転シリンダ。 - 回転中心にスライド孔を有するシリンダ本体と、
前記スライド孔に前記回転中心に沿ってスライド可能に嵌挿されたピストンと、
前記シリンダ本体を前記回転中心周りに回転可能に支持する回転支持体とを備え、
前記シリンダ本体には、前記回転中心周りに環状に延び、且つ、前記スライド孔に開口するシリンダ室が形成され、
前記ピストンには、前記回転中心周りに環状に延び、且つ、前記シリンダ室に収容されて当該シリンダ室を第1及び第2空間に区画するフランジ部が設けられ、
前記シリンダ本体及び前記回転支持体には、前記第1及び第2空間に流体を出し入れすることによって前記ピストンを前記回転中心に沿ってスライドさせる流体出入手段が設けられ、
前記流体出入手段は、一端が前記第1又は第2空間に開口し、且つ、他端に前記回転支持体の外周面に開口する嵌合凹部が形成された流体通路部と、前記嵌合凹部に対して筒中心線に沿って先端開口側から嵌合するとともに内周面にテーパ形状の雌ネジ部が形成された貫通孔を有する筒部材と、該筒部材の基端開口側から前記雌ネジ部に螺合させるテーパ形状の雄ネジ部を有する配管とを備えていることを特徴とする、
請求項7に記載の回転シリンダ。
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US2107802A (en) * | 1937-11-13 | 1938-02-08 | Cleveland Brass Mfg Company | Means for making threaded connections |
JPS63221902A (ja) * | 1985-10-23 | 1988-09-14 | ギユンタ ホルスト ロエ−ム | 回転スピンドルにおける固定装置のための油圧操作式シリンダ |
JP2000055012A (ja) * | 1998-08-07 | 2000-02-22 | Howa Mach Ltd | 回転シリンダ |
JP2005163960A (ja) * | 2003-12-04 | 2005-06-23 | Hitachi Metals Ltd | パージ付きキャップ |
JP2009270591A (ja) * | 2008-04-30 | 2009-11-19 | Mitsubishi Heavy Ind Ltd | 繊維強化樹脂製の管体 |
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JPS5238743Y1 (ja) * | 1970-10-02 | 1977-09-02 | ||
JP2001219309A (ja) * | 2000-02-07 | 2001-08-14 | Howa Mach Ltd | チャック |
KR100573414B1 (ko) * | 2004-07-06 | 2006-04-26 | 주식회사 삼천리기계 | 유압 실린더 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2107802A (en) * | 1937-11-13 | 1938-02-08 | Cleveland Brass Mfg Company | Means for making threaded connections |
JPS63221902A (ja) * | 1985-10-23 | 1988-09-14 | ギユンタ ホルスト ロエ−ム | 回転スピンドルにおける固定装置のための油圧操作式シリンダ |
JP2000055012A (ja) * | 1998-08-07 | 2000-02-22 | Howa Mach Ltd | 回転シリンダ |
JP2005163960A (ja) * | 2003-12-04 | 2005-06-23 | Hitachi Metals Ltd | パージ付きキャップ |
JP2009270591A (ja) * | 2008-04-30 | 2009-11-19 | Mitsubishi Heavy Ind Ltd | 繊維強化樹脂製の管体 |
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