WO2017037792A1 - Cylindrical member machining method and machining apparatus - Google Patents
Cylindrical member machining method and machining apparatus Download PDFInfo
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- WO2017037792A1 WO2017037792A1 PCT/JP2015/074485 JP2015074485W WO2017037792A1 WO 2017037792 A1 WO2017037792 A1 WO 2017037792A1 JP 2015074485 W JP2015074485 W JP 2015074485W WO 2017037792 A1 WO2017037792 A1 WO 2017037792A1
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- cylindrical workpiece
- claw portions
- cylindrical
- processing
- cylindrical member
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 title abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 210000000078 claw Anatomy 0.000 claims description 87
- 230000002093 peripheral effect Effects 0.000 claims description 49
- 238000005259 measurement Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 13
- 238000003672 processing method Methods 0.000 claims description 12
- 239000002184 metal Substances 0.000 description 20
- 238000010586 diagram Methods 0.000 description 4
- 230000005489 elastic deformation Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
Definitions
- the processing apparatus 200 includes a hydraulic extrusion mechanism 201, a metal plate 202, six claw portions 203, four metal thin plates 204, a tool 205, and a control unit 206.
- the measurement step S1 the inner diameter shape of the cylindrical workpiece 101 before processing is measured.
- the measurement is performed by the measurement device 300 that is separate from the processing device 200, and the measurement result is input to the input unit 206 a of the control unit 206 of the processing device 200.
- FIG. 6 is a cross-sectional view along the axial direction showing a processing apparatus 200A according to Embodiment 2 of the present invention.
- FIG. 7 is a diagram showing the control unit 206 of the machining apparatus 200A according to Embodiment 2 of the present invention.
- a piezoelectric element 209 is disposed between the metal plate 202 and the claw portion 203.
- the piezoelectric element 209 has a measured value at the input unit 206a of the control unit 206 so that the pressure acting on each claw unit 203 becomes uniform when the cylindrical workpiece 101 is gripped by each claw unit 203.
- Send pressure value Send pressure value.
- the control unit 206 receives feedback of the pressure measurement result at the adjustment unit 208, and the gripping force of each claw unit 203 becomes constant over the entire circumference of the cylindrical workpiece 101.
- the control unit 206 rotates the cylindrical workpiece 101 in a state where the cylindrical workpiece 101 is gripped by the claw portions 203. At the same time, the control unit 206 causes the tool 205 to scan along the outer periphery of the cylindrical workpiece 101. Thereby, the outer peripheral part of the cylindrical workpiece 101 is processed by the tool 205.
- the machining conditions are such that the rotational speed of the cylindrical workpiece 101 is 800 rpm and the tool feed speed is 0.1 mm / rev.
- control unit 206 moves the hydraulic pushing mechanism 201 in the axial direction and grips it with the minimum force necessary to rotate the cylindrical workpiece 101.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Gripping On Spindles (AREA)
- Turning (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
Provided are a cylindrical member machining method and machining apparatus that are capable of improving dimensional precision even when machining a cylindrical workpiece with low circularity. A cylindrical member machining method comprises a machining step for machining the outer circumference of a cylindrical workpiece using a support for supporting the cylindrical workpiece by abutting multiple tabs against the inner circumferential surface of the cylindrical workpiece and displacing the tabs outward in the radial direction, and rotating the support on the same axis as the cylindrical workpiece. The machining method comprises a determination step for determining the amount of radial displacement for each of the multiple tabs, and an adjustment step for displacing each of the multiple tabs on the basis of the determinations in the determination step.
Description
本発明は、薄肉の円筒状ワークを回転させて外周部の加工を精度良く行う筒状部材の加工方法および加工装置に関する。
The present invention relates to a cylindrical member processing method and a processing apparatus that rotate a thin cylindrical workpiece to accurately process an outer peripheral portion.
円筒状ワークの内外周部を加工する技術としては、円筒状ワークの両円筒端部の外周面を複数の爪部で把持し回転させて内周部を加工する技術が知られている（たとえば、特許文献１参照）。あるいは、複数の爪部で両円筒端部の内周面を内側から支持し回転させて外周部を加工する技術が知られている。
As a technique for processing the inner and outer peripheral parts of a cylindrical workpiece, a technique for processing the inner peripheral part by gripping and rotating the outer peripheral surfaces of both cylindrical ends of the cylindrical work with a plurality of claw parts (for example, , See Patent Document 1). Alternatively, a technique is known in which the outer peripheral portions are processed by supporting and rotating the inner peripheral surfaces of both cylindrical end portions from the inside with a plurality of claws.
薄肉の円筒状ワークの場合には、円筒状ワークを内外から支持する爪部の力のかけ方によっては、円筒状ワークの弾性変形の影響が大きい。そこで、円筒状ワークを外側から複数の爪部で把持する際に、加工を複数段階に分け、各段階で把持する箇所を変更することによって複数個所に力を分散させ、変形を抑制する技術が知られている（たとえば、特許文献２参照）。
In the case of a thin-walled cylindrical workpiece, the influence of elastic deformation of the cylindrical workpiece is large depending on how the claws that support the cylindrical workpiece from inside and outside are applied. Therefore, when gripping a cylindrical workpiece from the outside with a plurality of claws, the technology is divided into a plurality of stages, and the force is distributed to a plurality of locations by changing the location gripped at each step, thereby suppressing deformation. It is known (for example, see Patent Document 2).
特許文献２に開示されている技術では、把持力による弾性変形の影響を軽減することができる。しかしながら、加工対象となる円筒状ワークは断面が真円に近いものばかりではない。特許文献２に開示されている技術では、複数の爪部を円筒状ワークの外周面に当接させ、各爪部を内周側へ均等に変位させて円筒状ワークを把持する。このため、加工対象の円筒状ワークが真円度の低いものである場合に、把持力が不均一となって加工後のワークの円筒度または真円度が低下する。
The technique disclosed in Patent Document 2 can reduce the influence of elastic deformation caused by gripping force. However, the cylindrical workpiece to be processed is not limited to a cross section close to a perfect circle. In the technique disclosed in Patent Document 2, a plurality of claw portions are brought into contact with the outer peripheral surface of a cylindrical workpiece, and each claw portion is uniformly displaced toward the inner peripheral side to grip the cylindrical workpiece. For this reason, when the cylindrical workpiece to be machined has a low roundness, the gripping force becomes non-uniform and the cylindricity or roundness of the workpiece after machining decreases.
本発明は、上記課題を解決するためのものであり、真円度の低い円筒状ワークを加工する場合であっても寸法精度を向上させる筒状部材の加工方法および加工装置を提供することを目的とする。
This invention is for solving the said subject, and provides the processing method and processing apparatus of the cylindrical member which improve a dimensional accuracy even when processing a cylindrical workpiece | work with low roundness. Objective.
本発明に係る筒状部材の加工方法は、円筒状ワークの内周面に複数の爪部を当接させ、前記複数の爪部を径方向に外側へ変位させて前記円筒状ワークを支持する支持部を用い、前記支持部を前記円筒状ワークと同軸に回転させて前記円筒状ワークの外周部を加工する加工工程を含む加工方法であって、前記複数の爪部の前記径方向の変位量を各爪部に決定する決定工程と、前記決定工程での前記決定に基づき前記複数の爪部をそれぞれ変位させる調整工程と、を含むものである。
In the cylindrical member processing method according to the present invention, a plurality of claw portions are brought into contact with an inner peripheral surface of a cylindrical workpiece, and the plurality of claw portions are displaced radially outward to support the cylindrical workpiece. A processing method including a processing step of processing a peripheral portion of the cylindrical workpiece by rotating the support portion coaxially with the cylindrical workpiece using a support portion, wherein the radial displacements of the plurality of claw portions A determination step of determining the amount of each claw portion, and an adjustment step of displacing each of the plurality of claw portions based on the determination in the determination step.
本発明に係る筒状部材の加工装置は、円周状に並設された複数の爪部を有し、前記複数の爪部を径方向に外側に変位させて円筒状ワークを支持する支持部と、前記支持部を前記円筒状ワークと同軸に回転させる駆動部と、前記複数の爪部のそれぞれの前記径方向の変位量を決定する決定部と、前記決定部による決定に基づき前記複数の爪部のそれぞれの変位を調整する調整部と、前記支持部を前記円筒状ワークと同軸に回転させて前記円筒状ワークの外周部を加工する加工部と、を備えるものである。
The cylindrical member processing apparatus according to the present invention has a plurality of claw portions arranged side by side in a circumferential shape, and supports the cylindrical workpiece by displacing the plurality of claw portions radially outward. A drive unit that rotates the support unit coaxially with the cylindrical workpiece, a determination unit that determines the amount of radial displacement of each of the plurality of claw units, and the plurality of the plurality of claw units based on the determination by the determination unit An adjustment unit that adjusts the displacement of each of the claw portions, and a processing unit that processes the outer peripheral portion of the cylindrical workpiece by rotating the support portion coaxially with the cylindrical workpiece.
本発明に係る筒状部材の加工方法および加工装置によれば、円筒状ワークを把持する複数の爪部を等変位ではなく、複数の爪部の変位をそれぞれ調整する。これにより、円筒状ワークの弾性変形をより効果的に抑制し、真円度の低い円筒状ワークを加工する場合であっても寸法精度を向上させることができる。
According to the cylindrical member processing method and processing apparatus according to the present invention, the plurality of claw portions that hold the cylindrical workpiece are adjusted not in equal displacement but in the displacement of the plurality of claw portions. Thereby, the elastic deformation of the cylindrical workpiece can be more effectively suppressed, and the dimensional accuracy can be improved even when the cylindrical workpiece having a low roundness is processed.
以下、図面に基づいて本発明の実施の形態について説明する。
なお、各図において、同一の符号を付したものは、同一のまたはこれに相当するものであり、これは明細書の全文において共通している。
さらに、明細書全文に示されている構成要素の形態は、あくまで例示であってこれらの記載に限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, in each figure, what attached | subjected the same code | symbol is the same or it corresponds, and this is common in the whole text of a specification.
Furthermore, the forms of the constituent elements shown in the entire specification are merely examples and are not limited to these descriptions.
なお、各図において、同一の符号を付したものは、同一のまたはこれに相当するものであり、これは明細書の全文において共通している。
さらに、明細書全文に示されている構成要素の形態は、あくまで例示であってこれらの記載に限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In addition, in each figure, what attached | subjected the same code | symbol is the same or it corresponds, and this is common in the whole text of a specification.
Furthermore, the forms of the constituent elements shown in the entire specification are merely examples and are not limited to these descriptions.
実施の形態１．
図１は、本発明の実施の形態１に係る円筒状ワーク１０１を示す軸線方向に直交する断面図である。
実施の形態１では、素材ＳＭ４００、板厚４．５ｍｍ、外径１７０ｍｍ、全長１００ｍｍの円筒状ワーク１０１を使用し、円筒状ワーク１０１の外周部を全長にわたって外径１６８ｍｍに加工し、加工面の真円度０．１５ｍｍ以下を要求するものである。Embodiment 1 FIG.
FIG. 1 is a cross-sectional view perpendicular to the axial direction showing acylindrical workpiece 101 according to Embodiment 1 of the present invention.
In the first embodiment, a material SM400, a plate thickness of 4.5 mm, an outer diameter of 170 mm, and acylindrical workpiece 101 having a total length of 100 mm are used, and the outer periphery of the cylindrical workpiece 101 is processed to an outer diameter of 168 mm over the entire length. A roundness of 0.15 mm or less is required.
図１は、本発明の実施の形態１に係る円筒状ワーク１０１を示す軸線方向に直交する断面図である。
実施の形態１では、素材ＳＭ４００、板厚４．５ｍｍ、外径１７０ｍｍ、全長１００ｍｍの円筒状ワーク１０１を使用し、円筒状ワーク１０１の外周部を全長にわたって外径１６８ｍｍに加工し、加工面の真円度０．１５ｍｍ以下を要求するものである。
FIG. 1 is a cross-sectional view perpendicular to the axial direction showing a
In the first embodiment, a material SM400, a plate thickness of 4.5 mm, an outer diameter of 170 mm, and a
図１に示すように、断面楕円形状の円筒状ワーク１０１を対象として例示する。
加工前の円筒状ワーク１０１は、真円に近い形状が望ましいが、溶接またはプレスなどの工程を経て変形する場合が多い。このため、図１に示すように、断面楕円形状の円筒状ワーク１０１を対象とする。また、同一工程を経て形成される円筒状ワーク１０１であれば同様の変形をすることから、円筒状ワーク１０１同士の変形量の差は無視できるものとする。 As shown in FIG. 1, acylindrical workpiece 101 having an elliptical cross section is exemplified.
Thecylindrical workpiece 101 before processing is preferably a shape close to a perfect circle, but is often deformed through a process such as welding or pressing. For this reason, as shown in FIG. 1, the object is a cylindrical workpiece 101 having an elliptical cross section. Moreover, since the same deformation | transformation will be performed if it is the cylindrical workpiece | work 101 formed through the same process, the difference of the deformation amount of the cylindrical workpiece | work 101 shall be disregarded.
加工前の円筒状ワーク１０１は、真円に近い形状が望ましいが、溶接またはプレスなどの工程を経て変形する場合が多い。このため、図１に示すように、断面楕円形状の円筒状ワーク１０１を対象とする。また、同一工程を経て形成される円筒状ワーク１０１であれば同様の変形をすることから、円筒状ワーク１０１同士の変形量の差は無視できるものとする。 As shown in FIG. 1, a
The
図２は、本発明の実施の形態１に係る加工装置２００を示す軸線方向に沿った断面図である。図３は、本発明の実施の形態１に係る加工装置２００を示す軸線方向に直交する断面図である。
円筒状ワーク１０１の外周部を加工する場合には、被加工面である円筒状ワーク１０１の外周面は把持できないため、円筒状ワーク１０１の内周面を支持する必要がある。内周面の把持には、図２に示すように、先細りする外周テーパ形状の油圧押し出し機構２０１の先端に取り付けた内周テーパ形状かつ外周円筒形状の金属プレート２０２の弾性変形を利用して円筒状ワーク１０１の内周面を押圧する。 FIG. 2 is a cross-sectional view along the axial direction showing theprocessing apparatus 200 according to Embodiment 1 of the present invention. FIG. 3 is a cross-sectional view perpendicular to the axial direction showing the processing apparatus 200 according to Embodiment 1 of the present invention.
When the outer peripheral portion of thecylindrical workpiece 101 is processed, the outer peripheral surface of the cylindrical workpiece 101 that is the surface to be processed cannot be gripped, and thus the inner peripheral surface of the cylindrical workpiece 101 needs to be supported. For gripping the inner peripheral surface, as shown in FIG. 2, a cylinder is formed by using elastic deformation of a metal plate 202 having an inner peripheral tapered shape and an outer peripheral cylindrical shape attached to the tip of a tapered outer peripheral tapered hydraulic push-out mechanism 201. The inner peripheral surface of the workpiece 101 is pressed.
円筒状ワーク１０１の外周部を加工する場合には、被加工面である円筒状ワーク１０１の外周面は把持できないため、円筒状ワーク１０１の内周面を支持する必要がある。内周面の把持には、図２に示すように、先細りする外周テーパ形状の油圧押し出し機構２０１の先端に取り付けた内周テーパ形状かつ外周円筒形状の金属プレート２０２の弾性変形を利用して円筒状ワーク１０１の内周面を押圧する。 FIG. 2 is a cross-sectional view along the axial direction showing the
When the outer peripheral portion of the
加工装置２００は、油圧押し出し機構２０１、金属プレート２０２、６つの爪部２０３、４つの金属薄板２０４、工具２０５及び制御部２０６を備える。
The processing apparatus 200 includes a hydraulic extrusion mechanism 201, a metal plate 202, six claw portions 203, four metal thin plates 204, a tool 205, and a control unit 206.
油圧押し出し機構２０１は、油圧によって図示左右の軸線方向に移動可能かつ軸線回りに回転可能であり、図示しない左側に駆動機構を有する。油圧押し出し機構２０１は、図示右側に向かって先細りする外周テーパ形状になっている。油圧押し出し機構２０１は、支持する円筒状ワーク１０１と同軸である。
油圧押し出し機構２０１は、本発明の支持部および駆動部に相当する。 The hydraulic push-out mechanism 201 is movable in the left and right axial directions in the figure and can be rotated around the axis line by hydraulic pressure, and has a drive mechanism on the left side (not shown). The hydraulic push-out mechanism 201 has an outer peripheral taper shape that tapers toward the right side in the drawing. The hydraulic pushing mechanism 201 is coaxial with the cylindrical workpiece 101 to be supported.
The hydraulic push-out mechanism 201 corresponds to the support unit and drive unit of the present invention.
油圧押し出し機構２０１は、本発明の支持部および駆動部に相当する。 The hydraulic push-
The hydraulic push-
金属プレート２０２は、円周上６つに分割されて配置されている。金属プレート２０２は、油圧押し出し機構２０１の図示右側に先細りする外周テーパ形状に合わせた図示右側に向かって内径が狭くなる内周テーパ形状を有する。また、金属プレート２０２の外周面は、軸線方向に平行な円筒形状を有する。
The metal plate 202 is divided into six pieces on the circumference. The metal plate 202 has an inner peripheral taper shape whose inner diameter becomes narrower toward the right side in the drawing in accordance with the outer peripheral taper shape tapering to the right side in the drawing of the hydraulic push-out mechanism 201. The outer peripheral surface of the metal plate 202 has a cylindrical shape parallel to the axial direction.
６つの爪部２０３は、金属プレート２０２の油圧押し出し機構２０１とは反対側の図示右側の先端部に設けられている。６つの爪部２０３は、円周上６つに分割された金属プレート２０２の外周側に配置されるように金属プレート２０２と位相を合わせて円周上６つの数で配置される。６つの爪部２０３は、円筒状ワーク１０１の内周面に直接接触する。
The six claw portions 203 are provided at the right end of the metal plate 202 on the opposite side of the hydraulic pushing mechanism 201 in the drawing. The six claw portions 203 are arranged in six numbers on the circumference in phase with the metal plate 202 so as to be arranged on the outer peripheral side of the metal plate 202 divided into six on the circumference. The six claw portions 203 are in direct contact with the inner peripheral surface of the cylindrical workpiece 101.
４つの金属薄板２０４は、円周上断面楕円の円筒状ワーク１０１の形状に合わせて相対的に内径の狭い左右両側を除き上下側の４箇所の位置で金属プレート２０２と爪部２０３との間に挟まれる。４つの金属薄板２０４は、円周上６つに分割された金属プレート２０２と６つの爪部２０３と位相を合わせて円周上４つの数で配置される。４つの金属薄板２０４は、相対的に内径の狭い左右両側との差分値である０．１ｍｍの厚みを有する。
The four thin metal plates 204 are arranged between the metal plate 202 and the claw portion 203 at four positions on the upper and lower sides except for the left and right sides having a relatively small inner diameter in accordance with the shape of the cylindrical workpiece 101 having an elliptical cross section. Sandwiched between. The four metal thin plates 204 are arranged in four numbers on the circumference in phase with the metal plates 202 divided into six on the circumference and the six claw portions 203. The four metal thin plates 204 have a thickness of 0.1 mm, which is a difference value between the left and right sides having a relatively narrow inner diameter.
工具２０５は、円筒状ワーク１０１の外周部を切削加工する。工具２０５は、軸線方向に直交する方向に移動して位置決めされ、軸線方向に沿って走査されることで、回転する円筒状ワーク１０１の外周部の表面を切削する。
工具２０５は、本発明の加工部に相当する。 Thetool 205 cuts the outer peripheral portion of the cylindrical workpiece 101. The tool 205 moves in a direction orthogonal to the axial direction, is positioned, and is scanned along the axial direction to cut the surface of the outer peripheral portion of the rotating cylindrical workpiece 101.
Thetool 205 corresponds to the machining part of the present invention.
工具２０５は、本発明の加工部に相当する。 The
The
図４は、本発明の実施の形態１に係る加工装置２００の制御部２０６を示す図である。
制御部２０６は、たとえばマイクロコンピュータからなり、加工装置２００に搭載されている。制御部２０６は、入力部２０６ａと、演算処理、判断処理などを実行するＣＰＵ２０６ｂと、各種の制御設定値や加工モードに応じた制御プログラムが格納されたメモリ２０６ｃと、ＣＰＵ２０６ｂでの演算結果や判断結果の出力情報に応じた駆動信号を油圧押し出し機構２０１または工具２０５に出力する出力部２０６ｄと、を有して構成されている。
制御部２０６は、決定部２０７および調整部２０８を含む。 FIG. 4 is a diagram showing thecontrol unit 206 of the machining apparatus 200 according to Embodiment 1 of the present invention.
Thecontrol unit 206 is composed of, for example, a microcomputer and is mounted on the processing apparatus 200. The control unit 206 includes an input unit 206a, a CPU 206b that executes arithmetic processing, determination processing, and the like, a memory 206c that stores a control program corresponding to various control setting values and processing modes, and arithmetic results and determinations performed by the CPU 206b. And an output unit 206d that outputs a drive signal corresponding to the output information of the result to the hydraulic push mechanism 201 or the tool 205.
Thecontrol unit 206 includes a determination unit 207 and an adjustment unit 208.
制御部２０６は、たとえばマイクロコンピュータからなり、加工装置２００に搭載されている。制御部２０６は、入力部２０６ａと、演算処理、判断処理などを実行するＣＰＵ２０６ｂと、各種の制御設定値や加工モードに応じた制御プログラムが格納されたメモリ２０６ｃと、ＣＰＵ２０６ｂでの演算結果や判断結果の出力情報に応じた駆動信号を油圧押し出し機構２０１または工具２０５に出力する出力部２０６ｄと、を有して構成されている。
制御部２０６は、決定部２０７および調整部２０８を含む。 FIG. 4 is a diagram showing the
The
The
入力部２０６ａは、加工装置２００と別体の測定装置３００から加工前の円筒状ワーク１０１の内径形状などの測定結果である加工前情報を受信し、ＣＰＵ２０６ｂに入力する。
The input unit 206a receives pre-processing information which is a measurement result such as the inner diameter shape of the cylindrical workpiece 101 before processing from the measuring device 300 separate from the processing device 200, and inputs it to the CPU 206b.
ＣＰＵ２０６ｂは、決定部２０７にて加工前情報から複数の爪部２０３の径方向の変位量を各爪部２０３に決定する。
決定部２０７は、円筒状ワーク１０１の内周面を把持する６つの爪部２０３の変位量が６つの爪部２０３のそれぞれの押圧力を均等化する変位量になるように決定する。すなわち、決定部２０７は、円筒状ワーク１０１の内周面を把持する６つの爪部２０３の変位量が、円筒状ワーク１０１の内周面形状に合わせて６つの爪部２０３のそれぞれの径方向への押圧力を均等化する変位量になるように決定する。 TheCPU 206b determines the displacement amount in the radial direction of the plurality of claw portions 203 to each claw portion 203 from the pre-processing information by the determination unit 207.
Thedetermination unit 207 determines that the displacement amounts of the six claw portions 203 that grip the inner peripheral surface of the cylindrical workpiece 101 become the displacement amounts that equalize the respective pressing forces of the six claw portions 203. That is, the determining unit 207 determines that the displacement amounts of the six claw portions 203 that grip the inner peripheral surface of the cylindrical workpiece 101 are in the radial directions of the six claw portions 203 according to the inner peripheral surface shape of the cylindrical workpiece 101. It is determined so as to obtain a displacement amount that equalizes the pressing force.
決定部２０７は、円筒状ワーク１０１の内周面を把持する６つの爪部２０３の変位量が６つの爪部２０３のそれぞれの押圧力を均等化する変位量になるように決定する。すなわち、決定部２０７は、円筒状ワーク１０１の内周面を把持する６つの爪部２０３の変位量が、円筒状ワーク１０１の内周面形状に合わせて６つの爪部２０３のそれぞれの径方向への押圧力を均等化する変位量になるように決定する。 The
The
出力部２０６ｄは、調整部２０８にて出力される駆動信号により、決定部２０７での決定に基づき６つの爪部２０３をそれぞれ変位させる。具体的には、出力部２０６ｄは、油圧押し出し機構２０１を図示右方向に軸線に沿って移動させ、外周テーパ形状が金属プレート２０２の内周テーパ形状を外径方向に移動させることで、６つの爪部２０３をそれぞれ外側に変位させる。
The output unit 206d displaces the six claw units 203 based on the determination by the determination unit 207 according to the drive signal output from the adjustment unit 208. Specifically, the output unit 206d moves the hydraulic pushing mechanism 201 in the right direction in the drawing along the axis, and the outer peripheral taper shape moves the inner peripheral taper shape of the metal plate 202 in the outer radial direction, thereby The claw portions 203 are displaced outward.
また、出力部２０６ｄは、６つの爪部２０３の変位後には、出力部２０６ｄからの駆動信号により、工具２０５の位置を制御する。出力部２０６ｄは、同時に、出力部２０６ｄからの駆動信号により、円筒状ワーク１０１と同軸に回転する油圧押し出し機構２０１の回転速度を制御する。
The output unit 206d controls the position of the tool 205 by a drive signal from the output unit 206d after the six claw units 203 are displaced. At the same time, the output unit 206d controls the rotational speed of the hydraulic push-out mechanism 201 that rotates coaxially with the cylindrical workpiece 101 by a drive signal from the output unit 206d.
図５は、本発明の実施の形態１に係る加工方法を示す工程図である。
図５に示すように、加工装置２００による加工方法は、測定工程Ｓ１、決定工程Ｓ２、調整工程Ｓ３および加工工程Ｓ４と、を含む。 FIG. 5 is a process diagram showing the processing method according toEmbodiment 1 of the present invention.
As shown in FIG. 5, the processing method by theprocessing apparatus 200 includes a measurement step S1, a determination step S2, an adjustment step S3, and a processing step S4.
図５に示すように、加工装置２００による加工方法は、測定工程Ｓ１、決定工程Ｓ２、調整工程Ｓ３および加工工程Ｓ４と、を含む。 FIG. 5 is a process diagram showing the processing method according to
As shown in FIG. 5, the processing method by the
まず、測定工程Ｓ１では、加工前の円筒状ワーク１０１の内径形状を測定する。実施の形態１では、加工装置２００と別体の測定装置３００において測定を実施し、測定結果を加工装置２００の制御部２０６の入力部２０６ａに入力する。
First, in the measurement step S1, the inner diameter shape of the cylindrical workpiece 101 before processing is measured. In the first embodiment, the measurement is performed by the measurement device 300 that is separate from the processing device 200, and the measurement result is input to the input unit 206 a of the control unit 206 of the processing device 200.
次に、決定工程Ｓ２では、制御部２０６は、決定部２０７にて、加工前の円筒状ワーク１０１の内径形状の測定結果から、円筒状ワーク１０１の内周面を把持する６つの爪部２０３の変位量が６つの爪部２０３のそれぞれの押圧力を均等化する変位量になるように決定する。
このように６つの爪部２０３の変位量を決定すると、各爪部２０３により均一に押圧できるため、円筒状ワーク１０１の変形量が一定になる。 Next, in the determination step S2, thecontrol unit 206 causes the determination unit 207 to determine the six claw portions 203 that grip the inner peripheral surface of the cylindrical workpiece 101 from the measurement result of the inner diameter shape of the cylindrical workpiece 101 before processing. Is determined so as to equalize the pressing force of each of the six claw portions 203.
When the displacement amounts of the sixclaw portions 203 are determined in this manner, the claw portions 203 can be pressed uniformly, so that the deformation amount of the cylindrical workpiece 101 becomes constant.
このように６つの爪部２０３の変位量を決定すると、各爪部２０３により均一に押圧できるため、円筒状ワーク１０１の変形量が一定になる。 Next, in the determination step S2, the
When the displacement amounts of the six
次に、調整工程Ｓ３では、制御部２０６は、調整部２０８にて、出力される駆動信号により、決定部２０７での決定に基づき６つの爪部２０３をそれぞれ変位させる。これにより、円筒状ワーク１０１を各爪部２０３により均一に押圧する。
Next, in the adjustment step S3, the control unit 206 causes the adjustment unit 208 to displace the six claw portions 203 based on the determination by the determination unit 207, based on the output drive signal. Thereby, the cylindrical workpiece 101 is uniformly pressed by the claw portions 203.
次に、加工工程Ｓ４では、制御部２０６は、円筒状ワーク１０１を各爪部２０３にて把持した状態で、油圧押し出し機構２０１を円筒状ワーク１０１と同軸に回転させて円筒状ワーク１０１を回転させる。同時に、制御部２０６は、工具２０５を円筒状ワーク１０１の外周に沿って走査させる。これにより、円筒状ワーク１０１の外周部が工具２０５によって加工される。加工条件は、円筒状ワーク１０１の回転速度が８００ｒｐｍであり、工具送り速度は０．１ｍｍ／ｒｅｖとする。
Next, in the machining step S4, the control unit 206 rotates the cylindrical workpiece 101 by rotating the hydraulic pushing mechanism 201 coaxially with the cylindrical workpiece 101 in a state where the cylindrical workpiece 101 is gripped by each claw portion 203. Let At the same time, the control unit 206 causes the tool 205 to scan along the outer periphery of the cylindrical workpiece 101. Thereby, the outer peripheral part of the cylindrical workpiece 101 is processed by the tool 205. The machining conditions are such that the rotational speed of the cylindrical workpiece 101 is 800 rpm and the tool feed speed is 0.1 mm / rev.
そして、加工後に、円筒状ワーク１０１の把持を解放する。円筒状ワーク１０１の把持を解放すると、弾性変形していた円筒状ワーク１０１が収縮する。
And after processing, the grip of the cylindrical workpiece 101 is released. When the gripping of the cylindrical workpiece 101 is released, the cylindrical workpiece 101 that has been elastically deformed contracts.
実施の形態１によれば、各爪部２０３による押圧が均一であるため、円筒状ワーク１０１の収縮量も均一になり、把持解放前の真円形状を保持することで必要な真円度０．２ｍｍ以下を得ることができる。
According to the first embodiment, since the pressing by each claw portion 203 is uniform, the amount of contraction of the cylindrical workpiece 101 is also uniform, and the required roundness of 0 is maintained by maintaining the perfect circular shape before the grip release. .2 mm or less can be obtained.
実施の形態２．
実施の形態２では、圧力センサである圧電素子２０９を備える。その他の構成は、実施の形態１と同様であるので、特徴的な構成のみ説明する。 Embodiment 2. FIG.
In the second embodiment, apiezoelectric element 209 that is a pressure sensor is provided. Since the other configuration is the same as that of the first embodiment, only the characteristic configuration will be described.
実施の形態２では、圧力センサである圧電素子２０９を備える。その他の構成は、実施の形態１と同様であるので、特徴的な構成のみ説明する。 Embodiment 2. FIG.
In the second embodiment, a
図６は、本発明の実施の形態２に係る加工装置２００Ａを示す軸線方向に沿った断面図である。図７は、本発明の実施の形態２に係る加工装置２００Ａの制御部２０６を示す図である。
加工装置２００Ａは、金属プレート２０２と爪部２０３との間に圧電素子２０９を配置している。
圧電素子２０９は、円筒状ワーク１０１を各爪部２０３で把持するときに、各爪部２０３に作用する圧力が均一になるように圧電素子２０９が制御部２０６の入力部２０６ａに測定値である圧力値を送信する。これにより、制御部２０６は、調整部２０８にて、圧力測定結果のフィードバックを受け、各爪部２０３の把持力が円筒状ワーク１０１の全周に渡って一定になる。 FIG. 6 is a cross-sectional view along the axial direction showing aprocessing apparatus 200A according to Embodiment 2 of the present invention. FIG. 7 is a diagram showing the control unit 206 of the machining apparatus 200A according to Embodiment 2 of the present invention.
In theprocessing apparatus 200 </ b> A, a piezoelectric element 209 is disposed between the metal plate 202 and the claw portion 203.
Thepiezoelectric element 209 has a measured value at the input unit 206a of the control unit 206 so that the pressure acting on each claw unit 203 becomes uniform when the cylindrical workpiece 101 is gripped by each claw unit 203. Send pressure value. As a result, the control unit 206 receives feedback of the pressure measurement result at the adjustment unit 208, and the gripping force of each claw unit 203 becomes constant over the entire circumference of the cylindrical workpiece 101.
加工装置２００Ａは、金属プレート２０２と爪部２０３との間に圧電素子２０９を配置している。
圧電素子２０９は、円筒状ワーク１０１を各爪部２０３で把持するときに、各爪部２０３に作用する圧力が均一になるように圧電素子２０９が制御部２０６の入力部２０６ａに測定値である圧力値を送信する。これにより、制御部２０６は、調整部２０８にて、圧力測定結果のフィードバックを受け、各爪部２０３の把持力が円筒状ワーク１０１の全周に渡って一定になる。 FIG. 6 is a cross-sectional view along the axial direction showing a
In the
The
次に、加工工程Ｓ４では、制御部２０６は、円筒状ワーク１０１を各爪部２０３にて把持した状態で、円筒状ワーク１０１を回転させる。同時に、制御部２０６は、工具２０５を円筒状ワーク１０１の外周に沿って走査させる。これにより、円筒状ワーク１０１の外周部が工具２０５によって加工される。加工条件は、円筒状ワーク１０１の回転速度が８００ｒｐｍであり、工具送り速度は０．１ｍｍ／ｒｅｖとする。
Next, in the machining step S4, the control unit 206 rotates the cylindrical workpiece 101 in a state where the cylindrical workpiece 101 is gripped by the claw portions 203. At the same time, the control unit 206 causes the tool 205 to scan along the outer periphery of the cylindrical workpiece 101. Thereby, the outer peripheral part of the cylindrical workpiece 101 is processed by the tool 205. The machining conditions are such that the rotational speed of the cylindrical workpiece 101 is 800 rpm and the tool feed speed is 0.1 mm / rev.
そして、加工後に、円筒状ワーク１０１の把持を解放する。円筒状ワーク１０１の把持を解放すると、弾性変形していた円筒状ワーク１０１が収縮する。
And after processing, the grip of the cylindrical workpiece 101 is released. When the gripping of the cylindrical workpiece 101 is released, the cylindrical workpiece 101 that has been elastically deformed contracts.
実施の形態２によれば、各爪部２０３による押圧が均一であるため、収縮量も均一になり、円筒状ワーク１０１の把持解放前の真円形状を保持することで必要な真円度０．２ｍｍ以下を得ることができる。また、工法や製造条件の異なる円筒状ワーク１０１を連続して投入した場合であっても、内面形状バラツキを吸収することができ、真円度を安定的に向上することができる。
According to the second embodiment, since the pressing by each claw portion 203 is uniform, the amount of contraction is also uniform, and the required roundness of 0 is obtained by holding the circular shape before the cylindrical workpiece 101 is released. .2 mm or less can be obtained. Moreover, even when the cylindrical workpieces 101 having different construction methods and production conditions are continuously input, variations in the inner surface shape can be absorbed, and the roundness can be stably improved.
実施の形態３．
実施の形態３では、測定部として形状測定機２１０を備える。その他の構成は、実施の形態１と同様であるので、特徴的な構成のみ説明する。 Embodiment 3 FIG.
In the third embodiment, ashape measuring machine 210 is provided as a measuring unit. Since the other configuration is the same as that of the first embodiment, only the characteristic configuration will be described.
実施の形態３では、測定部として形状測定機２１０を備える。その他の構成は、実施の形態１と同様であるので、特徴的な構成のみ説明する。 Embodiment 3 FIG.
In the third embodiment, a
図８は、本発明の実施の形態３に係る加工装置２００Ｂを示す軸線方向に沿った断面図である。図９は、本発明の実施の形態３に係る加工装置２００Ｂの制御部２０６を示す図である。
加工装置２００Ｂは、円筒状ワーク１０１の内周面に接触するセンサ部を有する形状測定機２１０を備える。 FIG. 8 is a cross-sectional view along the axial direction showing aprocessing apparatus 200B according to Embodiment 3 of the present invention. FIG. 9 is a diagram showing the control unit 206 of the machining apparatus 200B according to Embodiment 3 of the present invention.
Theprocessing apparatus 200 </ b> B includes a shape measuring machine 210 having a sensor unit that contacts the inner peripheral surface of the cylindrical workpiece 101.
加工装置２００Ｂは、円筒状ワーク１０１の内周面に接触するセンサ部を有する形状測定機２１０を備える。 FIG. 8 is a cross-sectional view along the axial direction showing a
The
まず、測定工程Ｓ１では、制御部２０６は、油圧押し出し機構２０１を軸方向に移動させ、円筒状ワーク１０１を回転させるために必要な最小の力で把持する。
First, in the measurement step S1, the control unit 206 moves the hydraulic pushing mechanism 201 in the axial direction and grips it with the minimum force necessary to rotate the cylindrical workpiece 101.
さらに、測定工程Ｓ１では、制御部２０６は、形状測定機２１０を円筒状ワーク１０１の内周面に当てて、０．１～１ｒｐｍ程度の低速の回転速度で円筒状ワーク１０１を回転させて表面の凹凸を測定する。
測定された凹凸形状を基に、実施の形態１と同様の方法で、各爪部２０３により均一に押圧されるように金属薄板２０４を設置する。 Further, in the measurement step S1, thecontrol unit 206 applies the shape measuring machine 210 to the inner peripheral surface of the cylindrical workpiece 101 and rotates the cylindrical workpiece 101 at a low rotational speed of about 0.1 to 1 rpm. Measure the unevenness.
Based on the measured uneven shape, the metalthin plate 204 is installed so as to be uniformly pressed by each claw portion 203 by the same method as in the first embodiment.
測定された凹凸形状を基に、実施の形態１と同様の方法で、各爪部２０３により均一に押圧されるように金属薄板２０４を設置する。 Further, in the measurement step S1, the
Based on the measured uneven shape, the metal
金属薄板２０４の設置後に、加工装置２００Ｂでは、形状測定機２１０の測定結果を制御部２０６の入力部２０６ａに入力して決定工程Ｓ２および調整工程Ｓ３を実施する。これにより、加工装置２００Ｂが円筒状ワーク１０１を強く把持すると、各爪部２０３により均一に押圧できるため、円筒状ワーク１０１の変形量が一定になる。
After installation of the thin metal plate 204, the processing apparatus 200B inputs the measurement result of the shape measuring machine 210 to the input unit 206a of the control unit 206, and performs the determination step S2 and the adjustment step S3. Thereby, when the processing apparatus 200B strongly holds the cylindrical workpiece 101, it can be uniformly pressed by each claw portion 203, so that the deformation amount of the cylindrical workpiece 101 becomes constant.
次に、加工工程Ｓ４では、制御部２０６は、円筒状ワーク１０１を各爪部２０３にて把持した状態で、円筒状ワーク１０１を回転させる。同時に、制御部２０６は、工具２０５を円筒状ワーク１０１の外周に沿って走査させる。これにより、円筒状ワーク１０１の外周部が工具２０５によって加工される。加工条件は、円筒状ワーク１０１の回転速度が８００ｒｐｍであり、工具送り速度は０．１ｍｍ／ｒｅｖとする。
Next, in the machining step S4, the control unit 206 rotates the cylindrical workpiece 101 in a state where the cylindrical workpiece 101 is gripped by the claw portions 203. At the same time, the control unit 206 causes the tool 205 to scan along the outer periphery of the cylindrical workpiece 101. Thereby, the outer peripheral part of the cylindrical workpiece 101 is processed by the tool 205. The machining conditions are such that the rotational speed of the cylindrical workpiece 101 is 800 rpm and the tool feed speed is 0.1 mm / rev.
そして、加工後に、円筒状ワーク１０１の把持を解放する。円筒状ワーク１０１の把持を解放すると、弾性変形していた円筒状ワーク１０１が収縮する。
And after processing, the grip of the cylindrical workpiece 101 is released. When the gripping of the cylindrical workpiece 101 is released, the cylindrical workpiece 101 that has been elastically deformed contracts.
実施の形態３によれば、各爪部２０３による押圧力が均一であるため、収縮量も均一になり、円筒状ワーク１０１の把持解放前の真円形状を保持することで必要な真円度を得ることができる。また、加工装置２００Ｂに形状測定機２１０を備えることで、別置の測定装置で形状測定する場合と比べ、真円度の調整時間を短縮できる。
According to the third embodiment, since the pressing force by each claw portion 203 is uniform, the amount of contraction is also uniform, and the roundness required by holding the circular shape before the cylindrical workpiece 101 is released is held. Can be obtained. Further, by providing the processing apparatus 200B with the shape measuring machine 210, the roundness adjustment time can be shortened compared to the case of measuring the shape with a separate measuring apparatus.
なお、実施の形態１～３では、円筒状ワーク１０１の内周面を把持する複数の爪部２０３を有する支持部としての加工装置２００、２００Ａ、２００Ｂが１つだけであった。しかしこれに限られない。加工装置２００、２００Ａ、２００Ｂは、円筒状ワーク１０１の円筒両端部をそれぞれ支持するように２つ備えられてもよい。
In the first to third embodiments, there is only one processing device 200, 200A, or 200B as a support portion having a plurality of claw portions 203 that grip the inner peripheral surface of the cylindrical workpiece 101. However, it is not limited to this. Two processing apparatuses 200, 200 </ b> A, and 200 </ b> B may be provided so as to support both ends of the cylindrical workpiece 101.
また、実施の形態１～３では、爪部２０３の数が６つであった。しかしこれに限られない。爪部２０３の数は、６～１２のいずれかの数であってもよい。
In the first to third embodiments, the number of the claw portions 203 is six. However, it is not limited to this. The number of the claw portions 203 may be any number from 6 to 12.
以上の実施の形態１～３によると、円筒状ワーク１０１を内側から支持する６つの爪部２０３の変位量をそれぞれ決定する。そして、当該決定に基づき６つの爪部２０３をそれぞれ変位させる。これにより、変位量を相異させることができ、各爪部２０３が均等な圧力となるように内側から支持することができる。
According to the first to third embodiments, the displacement amounts of the six claw portions 203 that support the cylindrical workpiece 101 from the inside are determined. Then, the six claw portions 203 are displaced based on the determination. Thereby, the amount of displacement can be made different, and each nail | claw part 203 can be supported from the inside so that it may become equal pressure.
円筒状ワーク１０１の内周面の形状の測定結果に基づき、６つの爪部２０３の変位量をそれぞれ決定する。これにより、円筒状ワーク１０１のそれぞれの形状に沿って円筒状ワーク１０１を支持することができ、各爪部２０３が均等な圧力となるように内側から支持することができる。
Based on the measurement result of the shape of the inner peripheral surface of the cylindrical workpiece 101, the displacement amounts of the six claw portions 203 are respectively determined. Thereby, the cylindrical workpiece 101 can be supported along each shape of the cylindrical workpiece 101, and each nail | claw part 203 can be supported from an inner side so that it may become equal pressure.
円筒状ワーク１０１への当接箇所における圧電素子２０９の圧力測定結果をフィードバックさせて６つの爪部２０３の変位量をそれぞれ決定する。これにより、各爪部２０３からの圧力を均等化させることができる。さらに、加工中の圧力変化に応じて各爪部２０３の圧力を均等化させることができる。
The displacement of the six claw portions 203 is determined by feeding back the pressure measurement result of the piezoelectric element 209 at the contact point with the cylindrical workpiece 101. Thereby, the pressure from each claw part 203 can be equalized. Furthermore, the pressure of each nail | claw part 203 can be equalized according to the pressure change during a process.
加工装置２００、２００Ａ、２００Ｂでは、円筒状ワーク１０１の両円筒端部をそれぞれ支持するように２つ備えられる。これにより、各爪部２０３で把持した円筒状ワーク１０１の形状が両円筒端部を固定されて一定になり、円筒状ワーク１０１の外周部を全体的かつ同時に加工することができる。
In the processing apparatuses 200, 200A, and 200B, two are provided so as to support both cylindrical ends of the cylindrical workpiece 101, respectively. Thereby, the shape of the cylindrical workpiece 101 gripped by each claw portion 203 is fixed by fixing both cylindrical end portions, and the outer peripheral portion of the cylindrical workpiece 101 can be processed entirely and simultaneously.
複数の爪部２０３の数を６～１２のいずれかの数とする。これにより、円筒状ワーク１０１の多様な内周面形状に合わせて、各爪部２０３の圧力を均等化して円筒状ワーク１０１を支持することができる。
The number of the plurality of claw portions 203 is any number from 6 to 12. Thereby, according to the various internal peripheral surface shape of the cylindrical workpiece 101, the pressure of each nail | claw part 203 can be equalized, and the cylindrical workpiece 101 can be supported.
１０１ 円筒状ワーク、２００、２００Ａ、２００Ｂ 加工装置、２０１ 油圧押し出し機構、２０２ 金属プレート、２０３ 爪部、２０４ 金属薄板、２０５ 工具、２０６ 制御部、２０６ａ 入力部、２０６ｂ ＣＰＵ、２０６ｃ メモリ、２０６ｄ 出力部、２０７ 決定部、２０８ 調整部、２０９ 圧電素子、２１０ 形状測定機、３００ 測定装置。
101 cylindrical workpiece, 200, 200A, 200B processing device, 201 hydraulic extrusion mechanism, 202 metal plate, 203 claws, 204 metal thin plate, 205 tool, 206 control unit, 206a input unit, 206b CPU, 206c memory, 206d output unit , 207 determining unit, 208 adjusting unit, 209 piezoelectric element, 210 shape measuring machine, 300 measuring device.
Claims (11)
- 円筒状ワークの内周面に複数の爪部を当接させ、前記複数の爪部を径方向に外側へ変位させて前記円筒状ワークを支持する支持部を用い、
前記支持部を前記円筒状ワークと同軸に回転させて前記円筒状ワークの外周部を加工する加工工程を含む筒状部材の加工方法であって、
前記複数の爪部の前記径方向の変位量を各爪部に決定する決定工程と、
前記決定工程での前記決定に基づき前記複数の爪部をそれぞれ変位させる調整工程と、
を含む筒状部材の加工方法。 A plurality of claw portions are brought into contact with the inner peripheral surface of the cylindrical workpiece, and the plurality of claw portions are displaced outward in the radial direction to use the support portion that supports the cylindrical workpiece,
A cylindrical member processing method including a processing step of processing the outer peripheral portion of the cylindrical workpiece by rotating the support portion coaxially with the cylindrical workpiece,
A determining step of determining the amount of displacement in the radial direction of the plurality of claw portions in each claw portion;
An adjustment step of displacing each of the plurality of claw portions based on the determination in the determination step;
The processing method of the cylindrical member containing this. - 前記円筒状ワークの内周形状を測定する測定工程を更に含み、
前記決定工程は、前記測定工程での測定結果に基づいて、前記複数の爪部のそれぞれの押圧力を均等化する変位量を決定する請求項１に記載の筒状部材の加工方法。 Further comprising a measuring step of measuring the inner peripheral shape of the cylindrical workpiece,
The cylindrical member processing method according to claim 1, wherein the determining step determines a displacement amount that equalizes each pressing force of the plurality of claw portions based on a measurement result in the measuring step. - 前記決定工程は、前記測定工程での測定結果に基づいて、前記円筒状ワークの内周形状に合わせて前記複数の爪部のそれぞれの前記径方向への押圧力を均等化する変位量を決定する請求項２に記載の筒状部材の加工方法。 The determining step determines a displacement amount for equalizing the pressing force in the radial direction of each of the plurality of claw portions according to the inner peripheral shape of the cylindrical workpiece based on the measurement result in the measuring step. The processing method of the cylindrical member of Claim 2.
- 前記複数の爪部のそれぞれに圧力センサが設けられ、
前記決定工程は、前記複数の爪部を前記円筒状ワークに当接させている際の前記圧力センサから出力される測定値に基づいて、前記複数の爪部のそれぞれの押圧力を均等化する変位量を決定する請求項１に記載の筒状部材の加工方法。 A pressure sensor is provided for each of the plurality of claws,
The determining step equalizes each pressing force of the plurality of claw portions based on a measurement value output from the pressure sensor when the plurality of claw portions are in contact with the cylindrical workpiece. The method for processing a cylindrical member according to claim 1, wherein a displacement amount is determined. - 前記複数の爪部の数は、６～１２のいずれかの数である請求項１～４のいずれか１項に記載の筒状部材の加工方法。 The method for processing a cylindrical member according to any one of claims 1 to 4, wherein the number of the plurality of claw portions is any number of 6 to 12.
- 円周状に並設された複数の爪部を有し、前記複数の爪部を径方向に外側に変位させて円筒状ワークを支持する支持部と、
前記支持部を前記円筒状ワークと同軸に回転させる駆動部と、
前記複数の爪部のそれぞれの前記径方向の変位量を決定する決定部と、
前記決定部による決定に基づき前記複数の爪部のそれぞれの変位を調整する調整部と、
前記支持部を前記円筒状ワークと同軸に回転させて前記円筒状ワークの外周部を加工する加工部と、
を備える筒状部材の加工装置。 A plurality of claw portions arranged side by side in a circumferential shape, a support portion for supporting the cylindrical workpiece by displacing the plurality of claw portions outward in the radial direction;
A drive unit for rotating the support unit coaxially with the cylindrical workpiece;
A determining unit that determines a radial displacement amount of each of the plurality of claw portions;
An adjustment unit for adjusting the displacement of each of the plurality of claw portions based on the determination by the determination unit;
A processing section for processing the outer peripheral portion of the cylindrical workpiece by rotating the support portion coaxially with the cylindrical workpiece;
An apparatus for processing a cylindrical member. - 前記支持部は、前記円筒状ワークの円筒両端部をそれぞれ支持するように２つ備えられる請求項６に記載の筒状部材の加工装置。 The cylindrical member processing apparatus according to claim 6, wherein two supporting portions are provided so as to respectively support both cylindrical end portions of the cylindrical workpiece.
- 前記円筒状ワークの内周形状を測定する測定部を更に備え、
前記決定部は、前記測定部による測定結果に基づいて、前記複数の爪部のそれぞれの押圧力を均等化する変位量を決定する請求項６または７に記載の筒状部材の加工装置。 A measuring unit for measuring the inner peripheral shape of the cylindrical workpiece;
The cylindrical member processing apparatus according to claim 6 or 7, wherein the determination unit determines a displacement amount for equalizing each pressing force of the plurality of claw portions based on a measurement result by the measurement unit. - 前記決定部は、前記測定部での測定結果に基づいて、前記円筒状ワークの内周形状に合わせて前記複数の爪部のそれぞれの前記径方向への押圧力を均等化する変位量を決定する請求項８に記載の筒状部材の加工装置。 The determining unit determines a displacement amount that equalizes the radial pressing force of each of the plurality of claw portions according to the inner peripheral shape of the cylindrical workpiece based on the measurement result of the measuring unit. The processing apparatus of the cylindrical member of Claim 8.
- 前記複数の爪部のそれぞれに圧力センサが設けられ、
前記決定部は、前記複数の爪部を前記円筒状ワークに当接させている際の前記圧力センサから出力させる測定値に基づいて、前記複数の爪部のそれぞれの押圧力を均等化する変位量を決定する請求項６または７に記載の筒状部材の加工装置。 A pressure sensor is provided for each of the plurality of claws,
The determining unit is a displacement that equalizes each pressing force of the plurality of claw parts based on a measurement value output from the pressure sensor when the plurality of claw parts are in contact with the cylindrical workpiece. The processing apparatus of the cylindrical member of Claim 6 or 7 which determines quantity. - 前記複数の爪の数は、６～１２のいずれかの数である請求項６～１０のいずれか１項に記載の筒状部材の加工装置。 The cylindrical member processing apparatus according to any one of claims 6 to 10, wherein the number of the plurality of claws is any number of 6 to 12.
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