JP2019171554A - Hollow cylindrical workpiece, lathing method for the same, lathing device for hollow cylindrical workpiece, cylindrical substrate for electrophotographic photoreceptor, electrophotographic photoreceptor, image forming device, and core - Google Patents
Hollow cylindrical workpiece, lathing method for the same, lathing device for hollow cylindrical workpiece, cylindrical substrate for electrophotographic photoreceptor, electrophotographic photoreceptor, image forming device, and core Download PDFInfo
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Abstract
Description
本発明は、中空円筒状被加工物及び中空円筒状被加工物の旋削加工方法、中空円筒状被加工物の旋削加工装置、並びに電子写真感光体用円筒状基体、電子写真感光体、画像形成装置、及び中子に関する。 The present invention relates to a hollow cylindrical workpiece, a method for turning the hollow cylindrical workpiece, a turning device for the hollow cylindrical workpiece, a cylindrical substrate for an electrophotographic photosensitive member, an electrophotographic photosensitive member, and image formation The present invention relates to a device and a core.
最近、複写機、プリンター、Ｆａｘ等の電子写真方式の画像形成装置は高性能化しており、特にフルカラーにおいては多色画像の色ずれ、更には高解像度、高彩度化が大きな課題となっている。このような色ずれの最小化、更には高解像度、高彩度化を実現するために寸法精度の高い電子写真感光体が要求されている。 Recently, electrophotographic image forming apparatuses such as copiers, printers, and fax machines have been improved in performance. Particularly in the case of full color, color misregistration of multicolor images, and further, high resolution and high saturation have become major issues. In order to minimize such color misregistration, and further achieve high resolution and high saturation, an electrophotographic photosensitive member with high dimensional accuracy is required.
上記電子写真感光体は、円筒状基体とフランジとを備えており、電子写真感光体の高精度化を図るためには構成部品である円筒状基体の高精度化が必要となる。 The electrophotographic photosensitive member includes a cylindrical base and a flange. In order to increase the accuracy of the electrophotographic photosensitive member, it is necessary to increase the accuracy of the cylindrical base that is a component.
高精度な円筒状基体を製造する方法としては、例えば、円筒状基体の旋削加工時に中空弾性体を円筒状基体内部に挿入して製造することにより、びびり振動を防止する方法が提案されている（例えば、特許文献１参照）。
また、旋削加工時に基体を保持する装置に、基体を安定させるための治具を付加する製造方法が提案されている（例えば、特許文献２参照）。
また、円筒状基体を旋削時に旋削加工面に静圧支持体を付設することにより、びびり振動を防止する方法が提案されている（例えば、特許文献３参照）。
As a method for manufacturing a highly accurate cylindrical substrate, for example, a method for preventing chatter vibration by inserting a hollow elastic body into the cylindrical substrate during the turning of the cylindrical substrate has been proposed. (For example, refer to Patent Document 1).
In addition, a manufacturing method has been proposed in which a jig for stabilizing the base is added to an apparatus for holding the base during turning (see, for example, Patent Document 2).
In addition, a method for preventing chatter vibration has been proposed by attaching a static pressure support to the turning surface when turning a cylindrical base (see, for example, Patent Document 3).
また、軸と、該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とからなる中子を中空円筒状被加工物に挿入し、該中空円筒状被加工物の表面を旋削加工する方法が提案されている（例えば、特許文献４参照）。 Further, a core composed of a shaft and a plurality of thin plate-like elastic bodies passed through the shaft through a spacer is inserted into the hollow cylindrical workpiece, and the surface of the hollow cylindrical workpiece is turned. A processing method has been proposed (see, for example, Patent Document 4).
本発明は、びびり振動や変形などの発生が長期間抑制され、高精度な中空円筒状被加工物を製造することができる中空円筒状被加工物の旋削加工方法を提供することを目的とする。 An object of the present invention is to provide a method of turning a hollow cylindrical workpiece capable of producing a highly accurate hollow cylindrical workpiece in which occurrence of chatter vibration and deformation is suppressed for a long period of time. .
前記課題を解決するための手段としての本発明の中空円筒状被加工物の旋削加工方法は、軸と該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とを有する中子を中空円筒状被加工物に挿入する挿入工程と、前記中空円筒状被加工物の表面を旋削加工する旋削工程と、を含み、前記薄板状弾性体が前記中空円筒状被加工物の内径より小さい最大外径を有し、かつ旋削加工時において前記中空円筒状被加工物の内面に接する。 The method of turning a hollow cylindrical workpiece according to the present invention as means for solving the above-mentioned problem is a core having a shaft and a plurality of thin plate-like elastic bodies penetrated through the shaft via a spacer. Inserting into the hollow cylindrical workpiece, and a turning step of turning the surface of the hollow cylindrical workpiece, wherein the thin plate-like elastic body has an inner diameter of the hollow cylindrical workpiece. It has a small maximum outer diameter and contacts the inner surface of the hollow cylindrical workpiece during turning.
本発明によると、びびり振動や変形などの発生が長期間抑制され、高精度な中空円筒状被加工物を製造することができる中空円筒状被加工物の旋削加工方法を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, generation | occurrence | production of chatter vibration, a deformation | transformation, etc. can be suppressed for a long period of time, and the turning method of the hollow cylindrical workpiece which can manufacture a highly accurate hollow cylindrical workpiece can be provided.
（中空円筒状被加工物の旋削加工方法及び中空円筒状被加工物の旋削加工装置）
本発明の中空円筒状被加工物の旋削加工方法は、軸と該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とを有する中子を中空円筒状被加工物に挿入する挿入工程と、中空円筒状被加工物の表面を旋削加工する旋削工程と、を含み、薄板状弾性体が中空円筒状被加工物の内径より小さい最大外径を有し、かつ旋削加工時において中空円筒状被加工物の内面に接し、更に必要に応じてその他の工程を含む。
(Turning method for hollow cylindrical workpiece and turning device for hollow cylindrical workpiece)
According to the method of turning a hollow cylindrical workpiece of the present invention, a core having a shaft and a plurality of thin plate-like elastic bodies passed through the shaft through a spacer is inserted into the hollow cylindrical workpiece. An insertion step and a turning step of turning the surface of the hollow cylindrical workpiece, and the thin plate-like elastic body has a maximum outer diameter smaller than the inner diameter of the hollow cylindrical workpiece, and at the time of turning It touches the inner surface of the hollow cylindrical workpiece and further includes other steps as necessary.
本発明の中空円筒状被加工物の旋削加工装置は、軸と該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とを有する中子を中空円筒状被加工物に挿入する挿入手段と、中空円筒状被加工物の表面を旋削加工する旋削手段と、を有し、薄板状弾性体が中空円筒状被加工物の内径より小さい最大外径を有し、更に必要に応じてその他の手段を有する。 A hollow cylindrical workpiece turning apparatus according to the present invention inserts a core having a shaft and a plurality of thin plate-like elastic bodies penetrating the shaft through a spacer into the hollow cylindrical workpiece. An insertion means and a turning means for turning the surface of the hollow cylindrical workpiece, the thin plate-like elastic body has a maximum outer diameter smaller than the inner diameter of the hollow cylindrical workpiece, and further if necessary And have other means.
本発明の中空円筒状被加工物の旋削加工方法は、本発明の中空円筒状被加工物の旋削加工装置により実施することができ、挿入工程は挿入手段により行うことができ、旋削工程は旋削手段により行うことができ、その他の工程はその他の手段により行うことができる。 The hollow cylindrical workpiece turning method of the present invention can be performed by the hollow cylindrical workpiece turning apparatus of the present invention, the inserting step can be performed by an inserting means, and the turning step is turned. The other steps can be performed by other means.
本発明の中空円筒状被加工物の旋削加工方法及び中空円筒状被加工物の旋削加工装置は、特許文献１の従来技術では、重量物を円筒状基体に挿入するため、作業性が低下し、かつ重量物の脱着が別途必要になるという知見に基づくものである。
また、本発明の中空円筒状被加工物の旋削加工方法及び中空円筒状被加工物の旋削加工装置は、特許文献２の従来技術では、エアー配管を螺旋状に配置し、エアー圧により基体を安定させる方法を用いるため基体保持装置が非常に複雑となり、コスト高になるという知見に基づくものである。
また、本発明の中空円筒状被加工物の旋削加工方法及び中空円筒状被加工物の旋削加工装置は、特許文献４の従来技術は、中子は被加工物に抜き差しする際に、弾性体が被加工物の内面と接触することで摩擦力が発生し弾性体が摩耗する。このことから長期間使用した場合において、びびり振動によって工作精度が低下するという知見に基づくものである。
According to the prior art disclosed in Patent Document 1, the turning method of the hollow cylindrical workpiece of the present invention and the turning device of the hollow cylindrical workpiece insert a heavy object into the cylindrical substrate, so that workability is reduced. And based on the knowledge that desorption of heavy objects is required separately.
In addition, the method of turning a hollow cylindrical workpiece and the turning device of the hollow cylindrical workpiece according to the present invention are based on the prior art disclosed in Patent Document 2, in which air pipes are arranged in a spiral shape and the substrate is moved by air pressure. This is based on the knowledge that the substrate holding device becomes very complicated and the cost is high because the stabilization method is used.
Further, the turning method of the hollow cylindrical workpiece and the turning device of the hollow cylindrical workpiece according to the present invention are based on the conventional technique of Patent Document 4, in which the core is elastic when the core is inserted into and removed from the workpiece. Comes into contact with the inner surface of the work piece to generate frictional force and wear the elastic body. This is based on the knowledge that, when used for a long time, the machining accuracy is reduced by chatter vibration.
以上説明したように、従来の中子は中空円筒状被加工物に抜き差しする際に、薄板状弾性体が中空円筒状被加工物の内面と接触することで摩擦力が発生し薄板状弾性体が摩耗するため、長期間使用する際、びびり振動等によって工作精度が低下するという問題があった。 As described above, when a conventional core is inserted into and removed from a hollow cylindrical workpiece, a thin plate-like elastic body is brought into contact with the inner surface of the hollow cylindrical workpiece, and a frictional force is generated to cause a thin-plate elastic body. However, when it is used for a long time, there is a problem that the working accuracy is lowered due to chatter vibration or the like.
したがって、本発明によると、中空円筒状被加工物に、軸と該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とを有する中子を挿入して旋削加工を行うことにより、びびり振動や変形の発生を抑制し高精度の中空円筒状被加工物を製造することができる。
中子を構成する薄板状弾性体が中空円筒状被加工物の内径より小さい最大外径を有し、かつ旋削加工時において中空円筒状被加工物の内面に接することにより、びびり振動や変形などの発生が長期間抑制され、中空円筒状被加工物を高精度に旋削加工することができる。
ここで、中子を構成する薄板状弾性体が旋削加工時において中空円筒状被加工物の内面に接していることは、中子単独で旋削加工時と同じ回転数で回転させた時、中子を構成する薄板状弾性体が延伸していることから確認することができる。
Therefore, according to the present invention, by turning a hollow cylindrical workpiece by inserting a core having a shaft and a plurality of thin plate-like elastic bodies passed through the shaft through a spacer, and performing a turning process. The occurrence of chatter vibration and deformation can be suppressed, and a highly accurate hollow cylindrical workpiece can be manufactured.
The thin plate-like elastic body that constitutes the core has a maximum outer diameter smaller than the inner diameter of the hollow cylindrical workpiece, and is in contact with the inner surface of the hollow cylindrical workpiece during turning, thereby causing chatter vibration, deformation, etc. Is suppressed for a long time, and the hollow cylindrical workpiece can be turned with high accuracy.
Here, the thin plate-like elastic body constituting the core is in contact with the inner surface of the hollow cylindrical workpiece during the turning process, when the core alone is rotated at the same rotational speed as in the turning process, This can be confirmed from the fact that the thin elastic plate constituting the child is stretched.
薄板状弾性体は、非旋削加工時において最大外径が中空円筒状被加工物の内径より１．０ｍｍ以上２．０ｍｍ以下小さく、かつ旋削加工時の回転数において最大外径が２．５ｍｍ以上延伸することが好ましい。
中空円筒状被加工物に挿入する際は該中空円筒状被加工物の内径よりも薄板状弾性体の最大外径が小さいため、該中空円筒状被加工物と薄板状弾性体との摩擦が小さくなることで従来よりも長期間の使用に耐え得る。このとき、薄板状弾性体の最大外径が中空円筒状被加工物の内径より１．０ｍｍ未満であると、中子を挿入する際に、中空円筒状被加工物の内面に接触しやすいため摩擦が起こりやすい。一方、２．０ｍｍより大きい場合、薄板状弾性体が延伸しても中空円筒状被加工物の内面との密着が弱くなる。
また、旋削加工時の遠心力により薄板状弾性体が延伸することで中空円筒状被加工物の内面と薄板状弾性体とが接し、びびり振動や変形などの発生が抑制されるため、旋削加工時の回転数において薄板状弾性体の最大外径が２．５ｍｍ以上延伸することが好ましい。
旋削加工時の回転数は、一般的には１，０００ｒｐｍ以上１０，０００ｒｐｍ以下で行われるが、本発明においては３，０００ｒｐｍ以上６，０００ｒｐｍ以下で回転させるのが好ましい。旋削加工時の回転数が３，０００ｒｐｍ未満であると、薄板状弾性体の材質と薄板状弾性体の最大外径によって中空円筒状被加工物の内面への密着性が低くなる可能性があり、６，０００ｒｐｍを超えると、薄板状弾性体の材質によっては防振効果が足りなくなる可能性がある。
The thin plate-like elastic body has a maximum outer diameter of 1.0 mm or more and 2.0 mm or less smaller than the inner diameter of the hollow cylindrical workpiece during non-turning, and a maximum outer diameter of 2.5 mm or more when turning. It is preferable to stretch.
When inserted into the hollow cylindrical workpiece, the maximum outer diameter of the thin plate elastic body is smaller than the inner diameter of the hollow cylindrical workpiece, so that the friction between the hollow cylindrical workpiece and the thin plate elastic body is reduced. By being smaller, it can withstand long-term use than before. At this time, when the maximum outer diameter of the thin plate-like elastic body is less than 1.0 mm from the inner diameter of the hollow cylindrical workpiece, it is easy to contact the inner surface of the hollow cylindrical workpiece when the core is inserted. Friction is likely to occur. On the other hand, when the thickness is larger than 2.0 mm, the adhesion with the inner surface of the hollow cylindrical workpiece is weak even if the thin elastic plate is stretched.
In addition, the thin plate-like elastic body is stretched by the centrifugal force during turning, so that the inner surface of the hollow cylindrical workpiece and the thin plate-like elastic body are in contact with each other, and chatter vibration and deformation are suppressed. It is preferable that the maximum outer diameter of the thin elastic plate is stretched by 2.5 mm or more at the number of rotations.
The number of rotations during turning is generally 1,000 rpm or more and 10,000 rpm or less, but in the present invention, the rotation is preferably 3,000 rpm or more and 6,000 rpm or less. If the rotational speed at the time of turning is less than 3,000 rpm, the adhesiveness to the inner surface of the hollow cylindrical workpiece may be lowered due to the material of the thin elastic plate and the maximum outer diameter of the thin elastic plate. If it exceeds 6,000 rpm, the anti-vibration effect may be insufficient depending on the material of the thin elastic plate.
薄板状弾性体の肉厚は、１ｍｍ以上２０ｍｍ以下であることが好ましい。薄板状弾性体の肉厚が１ｍｍ以上であれば、びびり振動をより抑制でき、中空円筒状被加工物を高精度に加工することができる。一方、２０ｍｍ以下であれば、薄板状弾性体が良好に延伸し、中空円筒状被加工物の内面へ十分な接触がされるため、びびり振動を防止することができる。また、薄板状弾性体の肉厚が厚すぎると、抜き差しする際、中空円筒状被加工物と擦れ易くなるため、ある程度薄いほうが好ましい。 The thickness of the thin plate-like elastic body is preferably 1 mm or more and 20 mm or less. If the thickness of the thin elastic plate is 1 mm or more, chatter vibration can be further suppressed, and the hollow cylindrical workpiece can be processed with high accuracy. On the other hand, if the thickness is 20 mm or less, the thin plate-like elastic body is stretched satisfactorily, and sufficient contact is made with the inner surface of the hollow cylindrical workpiece, so that chatter vibration can be prevented. Further, if the thickness of the thin plate-like elastic body is too thick, it becomes easy to rub against the hollow cylindrical workpiece when inserting and removing it.
＜挿入工程及び挿入手段＞
挿入工程は、中子を中空円筒状被加工物に挿入する工程であり、挿入手段により実施される。
挿入手段としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、アクチュエーター、ロボット、自動搬送システム、手動などが挙げられる。
<Insertion process and insertion means>
The insertion step is a step of inserting the core into the hollow cylindrical workpiece, and is performed by the insertion means.
There is no restriction | limiting in particular as an insertion means, According to the objective, it can select suitably, For example, an actuator, a robot, an automatic conveyance system, manual etc. are mentioned.
−中子−
中子としては、軸と該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とを有し、更に必要に応じてその他の部材を有する。
中子を中空円筒状被加工物に挿入し、該中空円筒状被加工物の表面を旋削加工すると、びびり振動や変形などの発生が抑制され、電子写真感光体用円筒状基体等の中空円筒状被加工物を高精度に旋削加工することができる。
-Core-
The core includes a shaft and a plurality of thin plate-like elastic bodies penetrating the shaft through a spacer, and further includes other members as necessary.
When a core is inserted into a hollow cylindrical workpiece and the surface of the hollow cylindrical workpiece is turned, the occurrence of chatter vibration and deformation is suppressed, and a hollow cylinder such as a cylindrical substrate for an electrophotographic photosensitive member is suppressed. The workpiece can be turned with high accuracy.
−−薄板状弾性体−−
薄板状弾性体は、所定の基準であるＪＩＳ Ｋ６３０１（スプリングＡ型）に準じて測定した硬度が中空円筒状被加工物に接する面において１０Ｈｓ以上１００Ｈｓ以下、肉厚が１ｍｍ以上２０ｍｍ以下で、非旋削加工時における最大外径が中空円筒状被加工物の内径より１ｍｍ以上２ｍｍ以下小さい弾性体であり、旋削加工時の回転数において最大外径が２．５ｍｍ以上延伸することにより中空円筒状被加工物の内面に接することが好ましい。
薄板状弾性体の数、大きさ、材質、形状などに特に制限はなく、目的に応じて適宜選択することができる。
薄板状弾性体の数（枚数）は、中空円筒状被加工物の長さなどを考慮して、旋削加工時のびびり振動の発生を抑制できれば任意に設定可能である。
薄板状弾性体の材質としては、一般に防振効果の高い材質とされている天然ゴム、ブタジエンゴム、アクリルゴム、ウレタンゴム、クロロプレンゴム、ネオプレンゴム等で形成され、形態は発泡していてもよく、発泡していなくてもよい。
ただし、薄板状弾性体は、旋削加工時における遠心力により延伸する必要があるため、静的せん断弾性率が低く変形し易い材質が好ましい。
-Thin elastic plate-
The thin plate-like elastic body has a hardness measured in accordance with JIS K6301 (spring A type), which is a predetermined standard, of 10 Hs to 100 Hs and a wall thickness of 1 mm to 20 mm on the surface in contact with the hollow cylindrical workpiece. It is an elastic body whose maximum outer diameter is 1 mm or more and 2 mm or less smaller than the inner diameter of the hollow cylindrical workpiece during turning, and the hollow cylindrical workpiece is stretched by extending the maximum outer diameter by 2.5 mm or more at the number of rotations during turning. It is preferable to contact the inner surface of the workpiece.
There are no particular limitations on the number, size, material, shape, and the like of the thin elastic plate, and it can be selected appropriately according to the purpose.
The number (number of sheets) of the thin elastic plates can be arbitrarily set in consideration of the length of the hollow cylindrical workpiece and the like, as long as the occurrence of chatter vibration during turning can be suppressed.
As the material of the thin elastic plate, it is made of natural rubber, butadiene rubber, acrylic rubber, urethane rubber, chloroprene rubber, neoprene rubber, etc., which are generally considered to have a high anti-vibration effect, and the form may be foamed It does not have to be foamed.
However, since the thin plate-like elastic body needs to be stretched by a centrifugal force at the time of turning, a material having a low static shear modulus and being easily deformed is preferable.
薄板状弾性体の垂直方向断面形状は、円盤状又は十字状であることが好ましく、円盤状がより好ましい。薄板状弾性体の垂直方向断面形状が円盤状であれば中空円筒状被加工物の内面との密着性が高くなるため、旋削加工時の振動をより抑制することができる。
薄板状弾性体が同心状の多層構造で形成されることが好ましい。薄板状弾性体が多層構造をとることによって、層毎に性質が異なる薄板状弾性体を使用可能となり、中空円筒状被加工物の内面に接する部分を摩耗し難い薄板状弾性体にすることで抜き差し時の摩耗を更に抑制することができる。
The cross-sectional shape in the vertical direction of the thin elastic plate is preferably a disc shape or a cross shape, and more preferably a disc shape. If the cross-sectional shape in the vertical direction of the thin plate-like elastic body is a disc shape, the adhesion with the inner surface of the hollow cylindrical workpiece is increased, so that vibration during turning can be further suppressed.
The thin plate-like elastic body is preferably formed of a concentric multilayer structure. By adopting a multi-layer structure for the thin plate elastic body, it becomes possible to use a thin plate elastic body having different properties for each layer, and by making the portion in contact with the inner surface of the hollow cylindrical workpiece into a thin plate elastic body that is difficult to wear Wear during insertion and removal can be further suppressed.
−−軸−−
軸の大きさ、材質、形状などに特に制限はなく、目的に応じて適宜選択することができる。軸の材質としては、例えば、薄板状弾性体と同様のものを用いることができる。
--Axis--
There are no particular restrictions on the size, material, shape, etc. of the shaft, and it can be selected appropriately according to the purpose. As the material of the shaft, for example, the same material as the thin plate-like elastic body can be used.
−−スペーサー−−
スペーサーは、薄板状弾性体を中空円筒状被加工物の任意の位置に固定するための機能を有していれば、大きさ、材質、形状などに特に制限はなく、目的に応じて適宜選択することができる。
スペーサーの大きさとしては、例えば、円筒状基体に挿入するため、硬質の部材を使用する場合には、スペーサーの外径が中空円筒状被加工物の内径より小さいことが好ましい。
--Spacer--
The spacer is not particularly limited in size, material, shape, etc. as long as it has a function for fixing the thin elastic body to an arbitrary position of the hollow cylindrical workpiece, and is appropriately selected according to the purpose. can do.
As for the size of the spacer, for example, when a hard member is used for insertion into a cylindrical substrate, the outer diameter of the spacer is preferably smaller than the inner diameter of the hollow cylindrical workpiece.
−中空円筒状被加工物−
中空円筒状被加工物の大きさ、材質、構造などに特に制限はなく、目的に応じて適宜選択することができる。
中空円筒状被加工物の材質としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、導電体又は導電処理をした絶縁体が好適であり、例えば、アルミニウム（Ａｌ）、ニッケル（Ｎｉ）、鉄（Ｆｅ）、銅（Ｃｕ）、金（Ａｕ）、亜鉛（Ｚｎ）等の金属、又はそれらの合金；ポリエステル樹脂、ポリカーボネート樹脂、ポリイミド樹脂、ガラス等の絶縁性基体上にＡｌ、Ａｇ、Ａｕ等の金属、又はＩｎ２Ｏ３、ＳｎＯ２等の導電材料の薄膜を形成したもの；樹脂中にカーボンブラック、グラファイト、Ａｌ、Ｃｕ、Ｎｉ等の金属粉、導電性ガラス粉などを均一に分散させて、樹脂に導電性を付与した樹脂基体、導電処理をした紙などが挙げられる。
これらの中でも、アルミニウム合金が特に好ましい。アルミニウム合金としては、例えば、ＪＩＳ１０００番系アルミニウム合金、ＪＩＳ３０００番系アルミニウム合金、ＪＩＳ６０００番系アルミニウム合金などが挙げられる。なお、前記アルミニウム合金以外にも、マグネシウム合金、ニッケルなども適用可能である。
-Hollow cylindrical workpiece-
There is no restriction | limiting in particular in the magnitude | size, material, structure, etc. of a hollow cylindrical workpiece, According to the objective, it can select suitably.
There is no restriction | limiting in particular as a material of a hollow cylindrical workpiece, It can select suitably according to the objective, For example, the insulator which carried out the conductor or the electroconductive process is suitable, for example, aluminum (Al), Metals such as nickel (Ni), iron (Fe), copper (Cu), gold (Au), zinc (Zn), or alloys thereof; on an insulating substrate such as polyester resin, polycarbonate resin, polyimide resin, glass A metal such as Al, Ag, Au, or a thin film made of a conductive material such as In 2 O 3 , SnO 2 ; a metal powder such as carbon black, graphite, Al, Cu, Ni, or a conductive glass powder in a resin And the like, and a resin substrate in which conductivity is imparted to the resin, paper subjected to conductive treatment, and the like.
Among these, an aluminum alloy is particularly preferable. Examples of the aluminum alloy include JIS 1000 series aluminum alloy, JIS 3000 series aluminum alloy, and JIS 6000 series aluminum alloy. In addition to the aluminum alloy, magnesium alloy, nickel, and the like are also applicable.
＜旋削工程及び旋削手段＞
旋削工程は、中空円筒状被加工物の表面を旋削加工する工程であり、旋削手段により実施される。
旋削手段としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、旋盤、旋削加工装置などが挙げられる。
旋削加工の条件については、中空円筒状被加工物の材質、形状、構造などに応じて適宜選定することができる。
<Turning process and turning means>
The turning process is a process of turning the surface of the hollow cylindrical workpiece, and is performed by a turning means.
There is no restriction | limiting in particular as a turning means, According to the objective, it can select suitably, For example, a lathe, a turning processing apparatus, etc. are mentioned.
About the conditions of turning, it can select suitably according to the material, shape, structure, etc. of a hollow cylindrical workpiece.
＜その他の工程及びその他の手段＞
その他の工程としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、制御工程、表示工程、記録工程などが挙げられる。
その他の手段としては、特に制限はなく、目的に応じて適宜選択することができ、例えば、制御手段、表示手段、記録手段などが挙げられる。
<Other processes and other means>
Other steps are not particularly limited and may be appropriately selected depending on the purpose. Examples thereof include a control step, a display step, and a recording step.
Other means are not particularly limited and may be appropriately selected depending on the purpose. Examples thereof include control means, display means, and recording means.
（中子）
本発明の中子は、中空円筒状被加工物に挿入し該中空円筒状被加工物の表面を旋削加工する中空円筒状被加工物の旋削加工に用いられる中子であって、軸と、該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体と、を有し、更に必要に応じてその他の部材を有する。
薄板状弾性体は、非旋削加工時において最大外径が中空円筒状被加工物の内径より１．０ｍｍ以上２．０ｍｍ以下小さく、かつ旋削加工時の回転数において最大外径が２．５ｍｍ以上延伸することが好ましい。
なお、軸、薄板状弾性体、及び中空円筒状被加工物としては、中空円筒状被加工物の旋削加工方法及び中空円筒状被加工物の旋削加工装置と同様のものを用いることができる。
本発明の中子は、中空円筒状被加工物に挿入し、該円筒状被加工物の表面を旋削加工する際、びびり振動や変形などの発生が抑制され、中空円筒状被加工物を高精度に旋削加工することができる。
(Core)
The core of the present invention is a core used for turning a hollow cylindrical workpiece to be inserted into a hollow cylindrical workpiece and turning the surface of the hollow cylindrical workpiece, and a shaft, A plurality of thin plate-like elastic bodies that are passed through the shaft through a spacer, and further have other members as necessary.
The thin plate-like elastic body has a maximum outer diameter of 1.0 mm or more and 2.0 mm or less smaller than the inner diameter of the hollow cylindrical workpiece during non-turning, and a maximum outer diameter of 2.5 mm or more when turning. It is preferable to stretch.
In addition, as a shaft, a thin-plate-like elastic body, and a hollow cylindrical workpiece, the same thing as the turning method of a hollow cylindrical workpiece and the turning apparatus of a hollow cylindrical workpiece can be used.
When the core of the present invention is inserted into a hollow cylindrical workpiece and the surface of the cylindrical workpiece is turned, the occurrence of chatter vibration and deformation is suppressed, and the hollow cylindrical workpiece is increased. It can be turned with high accuracy.
（中空円筒状被加工物）
本発明の中空円筒状被加工物は、本発明の中空円筒状被加工物の旋削加工方法により旋削して形成される。
本発明の中空円筒状被加工物は、本発明の中空円筒状被加工物の旋削加工方法により旋削して形成されるので、振れが小さく、真円度精度の高い中空円筒状被加工物を得ることができる。
中空円筒状被加工物としては、中空円筒状であれば特に制限はなく、目的に応じて適宜選択することができ、例えば、電子写真感光体用円筒状基体、各種ドラム状部材などが挙げられる。
(Hollow cylindrical workpiece)
The hollow cylindrical workpiece of the present invention is formed by turning by the turning method of the hollow cylindrical workpiece of the present invention.
Since the hollow cylindrical workpiece of the present invention is formed by turning with the turning method of the hollow cylindrical workpiece of the present invention, a hollow cylindrical workpiece with low runout and high roundness accuracy is obtained. Obtainable.
The hollow cylindrical workpiece is not particularly limited as long as it is hollow cylindrical and can be appropriately selected according to the purpose. Examples thereof include a cylindrical substrate for an electrophotographic photosensitive member and various drum-shaped members. .
（電子写真感光体用円筒状基体）
本発明の電子写真感光体用円筒状基体は、本発明の中空円筒状被加工物からなる。
電子写真感光体用円筒状基体は、本発明の中空円筒状被加工物の旋削加工方法により旋削して形成されるので、振れが小さく、真円度精度の高い円筒状基体を得ることができる。
(Cylindrical substrate for electrophotographic photosensitive member)
The cylindrical substrate for an electrophotographic photosensitive member of the present invention comprises the hollow cylindrical workpiece of the present invention.
Since the cylindrical substrate for an electrophotographic photosensitive member is formed by turning with the method of turning a hollow cylindrical workpiece of the present invention, a cylindrical substrate with small runout and high roundness accuracy can be obtained. .
（電子写真感光体）
本発明の電子写真感光体は、本発明の電子写真感光体用円筒状基体上に、感光層を有し、更に必要に応じてその他の層を有する。
本発明の電子写真感光体は、本発明の電子写真感光体用円筒状基体上に感光層を有しているので、寸法精度が高く、画像形成装置に搭載することにより多色画像の色ずれを最小限に抑制することができる。
(Electrophotographic photoreceptor)
The electrophotographic photosensitive member of the present invention has a photosensitive layer on the cylindrical substrate for the electrophotographic photosensitive member of the present invention, and further has other layers as necessary.
Since the electrophotographic photosensitive member of the present invention has a photosensitive layer on the cylindrical substrate for the electrophotographic photosensitive member of the present invention, the dimensional accuracy is high, and color misregistration of a multicolor image can be achieved by mounting it in an image forming apparatus. Can be minimized.
本発明の電子写真感光体としては、第一の形態では、円筒状基体と、該円筒状基体上に単層型感光層を設け、更に必要に応じて、保護層、中間層等のその他の層を有する。
また、本発明の電子写真感光体としては、第二の形態では、円筒状基体と、該円筒状基体上に電荷発生層、及び電荷輸送層を少なくともこの順に有する積層型感光層を設け、更に必要に応じて、保護層、中間層等のその他の層を有する。なお、第二の形態では、電荷発生層、及び電荷輸送層は逆に積層しても構わない。
As the electrophotographic photosensitive member of the present invention, in the first embodiment, a cylindrical substrate and a single-layer type photosensitive layer are provided on the cylindrical substrate, and other protective layers, intermediate layers, etc. are provided as necessary. Having a layer.
In the second embodiment, the electrophotographic photosensitive member of the present invention is provided with a cylindrical substrate, and a laminated photosensitive layer having a charge generation layer and a charge transport layer at least in this order on the cylindrical substrate. It has other layers, such as a protective layer and an intermediate | middle layer as needed. In the second embodiment, the charge generation layer and the charge transport layer may be laminated in reverse.
（画像形成装置及び画像形成方法）
本発明の画像形成装置は、本発明の電子写真感光体を少なくとも備え、帯電手段と、露光手段と、現像手段と、転写手段と、定着手段とを備えることが好ましく、更に必要に応じて適宜選択したその他の手段、例えば、除電手段、クリーニング手段、リサイクル手段、制御手段等を備えている。
(Image forming apparatus and image forming method)
The image forming apparatus of the present invention preferably includes at least the electrophotographic photosensitive member of the present invention, and preferably includes a charging unit, an exposure unit, a developing unit, a transfer unit, and a fixing unit, and further, if necessary. Other selected means are provided, for example, static elimination means, cleaning means, recycling means, control means, and the like.
本発明に関する画像形成方法は、帯電工程と、露光工程と、現像工程と、転写工程と、定着工程とを少なくとも含み、更に必要に応じて適宜選択したその他の工程、例えば、除電工程、クリーニング工程、リサイクル工程、制御工程等を含み、前記各工程において、本発明の電子写真感光体を用いる。 The image forming method according to the present invention includes at least a charging step, an exposure step, a development step, a transfer step, and a fixing step, and further other steps appropriately selected as necessary, for example, a static elimination step and a cleaning step. The electrophotographic photosensitive member of the present invention is used in each of the steps including a recycling step and a control step.
本発明に関する画像形成方法は、本発明の画像形成装置により好適に実施することができ、前記帯電工程は前記帯電手段により行うことができ、前記露光工程は前記露光手段により行うことができ、前記現像工程は前記現像手段により行うことができ、前記転写工程は前記転写手段により行うことができ、前記定着工程は前記定着手段により行うことができ、前記その他の工程は前記その他の手段により行うことができる。 The image forming method according to the present invention can be preferably performed by the image forming apparatus of the present invention, the charging step can be performed by the charging unit, the exposure step can be performed by the exposing unit, The developing step can be performed by the developing unit, the transfer step can be performed by the transferring unit, the fixing step can be performed by the fixing unit, and the other steps can be performed by the other unit. Can do.
本発明の画像形成装置及び画像形成方法は、寸法精度が高い本発明の電子写真感光体を備えているので、色ずれの少ない多色画像を形成することができる。 Since the image forming apparatus and the image forming method of the present invention include the electrophotographic photosensitive member of the present invention having high dimensional accuracy, a multicolor image with little color misregistration can be formed.
ここで、本発明の中空円筒状被加工物の旋削加工装置を用いた中空円筒状被加工物の旋削加工方法の実施形態について、図面を参照して詳細に説明する。
なお、各図面において、同一構成部分には同一符号を付し、重複した説明を省略する場合がある。また、下記構成部材の数、位置、形状等は本実施の形態に限定されず、本発明を実施する上で好ましい数、位置、形状等にすることができる。
Here, an embodiment of a method for turning a hollow cylindrical workpiece using the hollow cylindrical workpiece turning apparatus of the present invention will be described in detail with reference to the drawings.
In addition, in each drawing, the same code | symbol is attached | subjected to the same component and the overlapping description may be abbreviate | omitted. In addition, the number, position, shape, and the like of the following constituent members are not limited to the present embodiment, and can be set to a preferable number, position, shape, and the like in practicing the present invention.
＜第１の実施形態＞
ここで、図１Ａは、本発明の中空円筒状被加工物の旋削加工方法に用いる中子の構成の一例を示す図である。
この図１Ａの中子１０は、旋削加工装置の旋削加工時の中空円筒状被加工物の把持部５と、中空円筒状被加工物の導入部４とが軸３に連結されており、薄板状弾性体１がスペーサー２を介して軸３に複数個取り付けられている。薄板状弾性体１とスペーサー２には軸３が貫通することが可能な加工がされており、中子の状態に組みあがったときに軸方向に動かないように固定される。
この場合、中子に取り付ける薄板状弾性体１の枚数は、中空円筒状被加工物の長さなどを考慮して、旋削加工時のびびり振動の発生を抑制できれば任意に設定可能である。ただし、実際には、中子に薄板状弾性体１を２０ｍｍ以上３０ｍｍ以下の間隔で設けるようにすると旋削加工時のびびり振動の発生を確実に抑制することができる。
<First Embodiment>
Here, FIG. 1A is a diagram showing an example of the configuration of a core used in the method of turning a hollow cylindrical workpiece of the present invention.
The core 10 in FIG. 1A includes a hollow cylindrical workpiece gripping portion 5 and a hollow cylindrical workpiece introduction portion 4 that are coupled to a shaft 3 during turning of the turning device. A plurality of elastic bodies 1 are attached to the shaft 3 via spacers 2. The thin plate-like elastic body 1 and the spacer 2 are processed so that the shaft 3 can penetrate, and are fixed so as not to move in the axial direction when assembled into a core state.
In this case, the number of thin elastic bodies 1 attached to the core can be arbitrarily set in consideration of the length of the hollow cylindrical workpiece and the like, as long as the occurrence of chatter vibration during turning can be suppressed. However, actually, if the thin plate-like elastic bodies 1 are provided in the core at intervals of 20 mm or more and 30 mm or less, the occurrence of chatter vibration during turning can be reliably suppressed.
図１Ｂは、中空円筒状被加工物６に中子１０を挿入した時の状態を示している。薄板状弾性体１の最大外径が中空円筒状被加工物６の内径より小さいため、中子１０を中空円筒状被加工物６に挿入したとき、薄板状弾性体１が中空円筒状被加工物６の内面に当たらない。 FIG. 1B shows a state when the core 10 is inserted into the hollow cylindrical workpiece 6. Since the maximum outer diameter of the thin plate-like elastic body 1 is smaller than the inner diameter of the hollow cylindrical workpiece 6, when the core 10 is inserted into the hollow cylindrical workpiece 6, the thin plate-like elastic body 1 becomes a hollow cylindrical workpiece. Do not hit the inner surface of the object 6.
図１Ｃは、中空円筒状被加工物の旋削加工時の状態を示している。旋削加工時、中空円筒状被加工物６の把持部７は旋削加工装置の連結部９により旋削加工装置本体（図示せず）と連結されている。中子１０が挿入された中空円筒状被加工物６（図１Ｃに示す状態）を手動又は自動搬送システム（図示せず）にて旋削加工装置（図示せず）に装着する。このとき、中空円筒状被加工物６の一方の端部は中子１０の旋削加工時の把持部５に把持されており、旋削加工装置の連結部８により旋削加工装置本体（図示せず）と連結されている。
中空円筒状被加工物６を旋削加工装置（図示せず）に装着後、旋削加工装置に付設されているモーター（図示せず）を駆動させ、ベルト、チェーン等の伝達装置により中空円筒状被加工物６を回転させる。中空円筒状被加工物６の回転が安定した後に、バイト１２を中空円筒状被加工物６から軸方向に移動させ、中空円筒状被加工物６の表面の旋削加工を行う。
このとき、薄板状弾性体１は回転による遠心力により中空円筒状被加工物６の内面に接することで、びびり振動や変形などの発生が抑制され、中空円筒状被加工物６を高精度に加工することができる。
図１Ｃでは、中空円筒状被加工物６の導入部４と旋削加工時の中空円筒状被加工物６の把持部７が接触していないが、接触していても問題ない。また、駆動方式として片側駆動と両側駆動が知られているが、本発明はこれらの駆動方式に限定されるものではない。
FIG. 1C shows a state during turning of a hollow cylindrical workpiece. At the time of turning, the gripping portion 7 of the hollow cylindrical workpiece 6 is connected to a turning device main body (not shown) by a connecting portion 9 of the turning device. A hollow cylindrical workpiece 6 (in the state shown in FIG. 1C) in which the core 10 is inserted is mounted on a turning device (not shown) by a manual or automatic conveyance system (not shown). At this time, one end portion of the hollow cylindrical workpiece 6 is held by the holding portion 5 when the core 10 is turned, and the turning device main body (not shown) is connected by the connecting portion 8 of the turning device. It is connected with.
After the hollow cylindrical workpiece 6 is mounted on a turning device (not shown), a motor (not shown) attached to the turning device is driven, and the hollow cylindrical workpiece is transmitted by a transmission device such as a belt or a chain. The workpiece 6 is rotated. After the rotation of the hollow cylindrical workpiece 6 is stabilized, the cutting tool 12 is moved from the hollow cylindrical workpiece 6 in the axial direction, and the surface of the hollow cylindrical workpiece 6 is turned.
At this time, the thin plate-like elastic body 1 is brought into contact with the inner surface of the hollow cylindrical workpiece 6 by centrifugal force caused by rotation, so that chatter vibration and deformation are suppressed, and the hollow cylindrical workpiece 6 is made highly accurate. Can be processed.
In FIG. 1C, the introduction portion 4 of the hollow cylindrical workpiece 6 and the gripping portion 7 of the hollow cylindrical workpiece 6 at the time of turning are not in contact, but there is no problem even if they are in contact. Further, one-side driving and both-side driving are known as driving methods, but the present invention is not limited to these driving methods.
＜第２の実施形態＞
図２Ａ〜図２Ｃは、薄板状弾性体の形状例を示したものであり、図２Ａは薄板状弾性体の垂直方向断面形状が円盤状である例であり、中心部に貫通孔１１が空いている。
図２Ｂは、薄板状弾性体の垂直方向断面形状が十字状である例である。
図２Ｃは、薄板状弾性体が多層構造である例であり、本実施形態では２重構造とした。これは薄板状弾性体の最大外径が中空円筒状被加工物の内径より１．０ｍｍ以上２．０ｍｍ以下小さく、かつ旋削加工時の回転数において最大外径が２．５ｍｍ以上延伸することを満たしていれば２層構造でなくともよい。なお、図２Ａ〜図２Ｃは、薄板状弾性体の形状例であり、びびり振動を無くし振れを抑制できる形状ならば、これらの形状でなくとも任意に設定可能である。
<Second Embodiment>
2A to 2C show examples of the shape of the thin plate-like elastic body. FIG. 2A shows an example in which the cross-sectional shape in the vertical direction of the thin plate-like elastic body is a disk shape, and the through hole 11 is open at the center. ing.
FIG. 2B is an example in which the cross-sectional shape in the vertical direction of the thin plate-like elastic body is a cross shape.
FIG. 2C is an example in which the thin plate-like elastic body has a multilayer structure, and a double structure is used in the present embodiment. This means that the maximum outer diameter of the thin plate-like elastic body is 1.0 mm or more and 2.0 mm or less smaller than the inner diameter of the hollow cylindrical workpiece, and the maximum outer diameter is extended by 2.5 mm or more at the number of rotations during turning. It does not have to be a two-layer structure as long as it satisfies. 2A to 2C are examples of the shape of the thin plate-like elastic body, and any shape can be used as long as the shape is such that chatter vibration is eliminated and vibration can be suppressed.
以下、本発明の実施例を説明するが、本発明は、これらの実施例に何ら限定されるものではない。
以下の実施例及び比較例では、「中空円筒状被加工物」として「電子写真感光体用円筒状基体」を用いた例を示した。
Examples of the present invention will be described below, but the present invention is not limited to these examples.
In the following examples and comparative examples, examples in which a “cylindrical substrate for an electrophotographic photosensitive member” is used as a “hollow cylindrical workpiece” are shown.
＜旋削加工＞
外径６０．４ｍｍ、全長３５２ｍｍ、肉厚１．０ｍｍのアルミニウム製の円筒状基体を用意した。
薄板状弾性体の材質はクロロプレンゴムを用いた。薄板状弾性体の最大外径は５８.４ｍｍ、肉厚３．０ｍｍ、薄板状弾性体の垂直方向断面形状が図２Ａに示すような円盤状である。軸に薄板状弾性体をスペーサーにより１０組貫通させて、図１Ａに示すような中子とした。軸の材質はアルミニウムを用いた。スペーサーとしては、薄板状弾性体を円筒状基体の任意の位置に固定するための機能を有していれば形状、材質は特に制限されない。
次に、中子を挿入した円筒状基体を、旋削加工装置（晶運工作所製、ＳＰＡ ５ ×６００）に装着して、下記の旋削条件で旋削加工を行い、外径６０．０ｍｍ、全長３５２ｍｍ、肉厚０．８ｍｍの円筒状基体を作製した。
［旋削条件］
・回転数 ：５，０００ｒｐｍ
・送り速度 ：０．１５ｍｍ／ｒｅｖ
・バイト形状：Ｒバイト
<Turning>
An aluminum cylindrical substrate having an outer diameter of 60.4 mm, a total length of 352 mm, and a wall thickness of 1.0 mm was prepared.
Chloroprene rubber was used as the material for the thin elastic plate. The thin plate-like elastic body has a maximum outer diameter of 58.4 mm, a wall thickness of 3.0 mm, and the thin plate-like elastic body has a disk shape as shown in FIG. 2A. Ten pairs of thin plate-like elastic bodies were passed through the shaft by spacers to form a core as shown in FIG. 1A. The shaft material was aluminum. The spacer is not particularly limited in its shape and material as long as it has a function for fixing the thin elastic body to an arbitrary position of the cylindrical substrate.
Next, the cylindrical substrate into which the core is inserted is mounted on a turning apparatus (SPA 5 × 600, manufactured by Kyakusho) and turned under the following turning conditions to obtain an outer diameter of 60.0 mm and a full length. A cylindrical substrate having a thickness of 352 mm and a thickness of 0.8 mm was produced.
[Turning conditions]
・ Rotation speed: 5,000 rpm
・ Feeding speed: 0.15mm / rev
・ Bite shape: R bite
（比較例１）
薄板状弾性体の最大外径Ａが円筒状基体の内径Ｂより１ｍｍ大きいこと、即ち、薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が−１ｍｍであること、及び薄板状弾性体の肉厚が３．０ｍｍであり、薄板状弾性体の垂直方向断面形状が図２Ａに示すような円盤状である以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、以下のようにして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Comparative Example 1)
The maximum outer diameter A of the thin plate elastic body is 1 mm larger than the inner diameter B of the cylindrical substrate, that is, the difference (B−A) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is −1 mm. And the thickness of the thin plate elastic body is 3.0 mm, and the vertical cross section of the thin plate elastic body is a disk shape as shown in FIG. The cylindrical substrate was turned.
With respect to the obtained cylindrical substrate, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin plate-like elastic body were measured as follows. The results are shown in Table 1-1 and Table 1-2.
＜びびり振動＞
びびり振動の有無は、目視確認にて、中空円筒状被加工物の旋削加工表面に振動した痕跡(スジ跡)の有無により判定した。
<Vibration vibration>
The presence or absence of chatter vibration was judged by visual confirmation based on the presence or absence of vibration traces (streak traces) on the turning surface of the hollow cylindrical workpiece.
＜全振れ＞
初期、及び繰り返し試行回数１，０００回後における全振れをレーザースキャンマイクロゲージ（株式会社ミツトヨ製）を用いて測定した。
<Full swing>
The total runout at the initial stage and after 1,000 trials was measured using a laser scan micro gauge (manufactured by Mitutoyo Corporation).
＜薄板状弾性体の摩耗＞
薄板状弾性体の摩耗の有無は、繰り返し試行回数が１，０００回後及び１０，０００回後の薄板状弾性体における、中空円筒状被加工物の内面と接する面の擦れ跡の有無により判定した。
<Abrasion of thin elastic plate>
The presence or absence of wear of the thin plate elastic body is determined by the presence or absence of rubbing on the surface in contact with the inner surface of the hollow cylindrical workpiece in the thin plate elastic body after 1,000 and 10,000 repetitions. did.
（実施例１）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が０．９ｍｍであり、旋削加工時において薄板状弾性体の最大外径を２．５ｍｍ延伸した以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
Example 1
The difference (B−A) between the maximum outer diameter A of the thin plate-like elastic body and the inner diameter B of the cylindrical substrate is 0.9 mm, except that the maximum outer diameter of the thin plate-like elastic body is extended by 2.5 mm during turning. In the same manner as the above-mentioned turning, the cylindrical substrate was turned.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例２）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が２．１ｍｍであり、旋削加工時において最大外径が２．５ｍｍ延伸した以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 2)
The above-mentioned turning process except that the difference (B−A) between the maximum outer diameter A of the thin plate-like elastic body and the inner diameter B of the cylindrical substrate is 2.1 mm and the maximum outer diameter is extended by 2.5 mm during the turning process. The cylindrical substrate was turned in the same manner as described above.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例３）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径が２．４ｍｍ延伸した以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 3)
The difference (B−A) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate elastic body is extended by 2.4 mm during turning. In the same manner as the above-mentioned turning, the cylindrical substrate was turned.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例４）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径が２．５ｍｍ延伸した以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 4)
The difference (B−A) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate elastic body is extended by 2.5 mm during turning. In the same manner as the above-mentioned turning, the cylindrical substrate was turned.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例５）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径が２．５ｍｍ延伸したこと、薄板状弾性体の肉厚が０．５ｍｍである以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 5)
The difference (BA) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate elastic body is extended by 2.5 mm during turning. The cylindrical substrate was turned in the same manner as the turning process except that the thickness of the thin elastic plate was 0.5 mm.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例６）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径が２．５ｍｍ延伸したこと、薄板状弾性体の肉厚が２０．５ｍｍである以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 6)
The difference (BA) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate elastic body is extended by 2.5 mm during turning. The cylindrical substrate was turned in the same manner as the turning process except that the thickness of the thin elastic plate was 20.5 mm.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例７）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径が２．５ｍｍ延伸したこと、薄板状弾性体の肉厚が３．０ｍｍである以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 7)
The difference (BA) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate elastic body is extended by 2.5 mm during turning. The cylindrical substrate was turned in the same manner as the turning process except that the thickness of the thin elastic plate was 3.0 mm.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例８）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径が２．５ｍｍ延伸したこと、薄板状弾性体の肉厚が３．０ｍｍであり、薄板状弾性体の垂直方向断面形状が図２Ｂに示すような十字状である以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 8)
The difference (BA) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate elastic body is extended by 2.5 mm during turning. In the same manner as in the above-described turning, except that the thickness of the thin plate elastic body is 3.0 mm and the vertical cross-sectional shape of the thin plate elastic body is a cross shape as shown in FIG. Turned.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例９）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径を２．５ｍｍ延伸したこと、薄板状弾性体の肉厚が３．０ｍｍであり、薄板状弾性体の垂直方向断面形状が図２Ａに示すような円盤状である以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
Example 9
The difference (B−A) between the maximum outer diameter A of the thin plate elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate elastic body is extended by 2.5 mm during turning. In the same manner as in the above-described turning, except that the thickness of the thin plate elastic body is 3.0 mm and the vertical cross-sectional shape of the thin plate elastic body is a disk shape as shown in FIG. Turned.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
（実施例１０）
薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂとの差（Ｂ−Ａ）が１．５ｍｍであり、旋削加工時において薄板状弾性体の最大外径を２．５ｍｍ延伸すること、薄板状弾性体の肉厚が３．０ｍｍであり円盤状であること、軸側がクロロプレンゴムと円筒状基体側がニトリルゴムとする図２Ｃに示すような２重構造とする。ニトリルゴムの幅は２ｍｍでありクロロプレンゴムより耐摩耗性が高い特性がある。これらの点以外は、上記旋削加工と同様にして、円筒状基体の旋削加工を行った。
得られた円筒状基体について、比較例１と同様にして、旋削加工中のびびり振動、初期及び繰り返し旋削加工後の円筒状基体の全振れ、並びに薄板状弾性体の摩耗を測定した。結果を表１−１及び表１−２に示した。
(Example 10)
The difference (B−A) between the maximum outer diameter A of the thin plate-like elastic body and the inner diameter B of the cylindrical substrate is 1.5 mm, and the maximum outer diameter of the thin plate-like elastic body is extended by 2.5 mm during turning. The thin plate-like elastic body has a disk shape of 3.0 mm, and has a double structure as shown in FIG. 2C in which the shaft side is chloroprene rubber and the cylindrical substrate side is nitrile rubber. The width of the nitrile rubber is 2 mm, and it has a higher wear resistance than chloroprene rubber. Except for these points, the cylindrical substrate was turned in the same manner as the turning.
With respect to the obtained cylindrical substrate, in the same manner as in Comparative Example 1, chatter vibration during turning, total vibration of the cylindrical substrate after initial and repeated turning, and wear of the thin elastic plate were measured. The results are shown in Table 1-1 and Table 1-2.
表１−１及び表１−２の結果から、比較例１は、従来の中子を使用して旋削加工を行った場合であり、びびり振動、及び初期の全振れについては良好であるが、繰返し使用していると薄板状弾性体が摩耗劣化するため、徐々に全振れの数値が大きくなった。
実施例１は、薄板状弾性体の最大外径が円筒状基体の内径より小さいため、比較例１の従来の中子に比べて薄板状弾性体部分の摩耗劣化が軽減されているが、薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂの差（Ｂ−Ａ）が小さいため、繰返し使用によって薄板状弾性体の摩耗がわずかに発生した。
実施例２は、薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂの差（Ｂ−Ａ）が大きいため、実施例１に比べて薄板状弾性体の摩耗が小さくなり、１，０００回施行後の全振れの増加が抑えられていたが、薄板状弾性体と円筒状基体の密着が弱いためか、初期全振れがやや悪かった。
実施例３は、薄板状弾性体の摩耗が無く、１，０００回施行後の全振れの増加も抑えられていたが、薄板状弾性体の延伸量が小さいため、薄板状弾性体と円筒状基体の密着が弱かったのか初期振れが悪かった。
実施例４は、薄板状弾性体の最大外径Ａと円筒状基体の内径Ｂの差（Ｂ−Ａ）、薄板状弾性体の伸びの両方が適切な範囲内1のため、薄板状弾性体と円筒状基体の密着が良く、びびり振動が発生しなかった。また、繰返し使用によって薄板状弾性体の摩耗が発生し難かった。
実施例５は、薄板状弾性体の摩耗が少なく旋削加工できるが、薄板状弾性体の肉厚が薄いため、防振作用が低く全振れが少々悪かった。
実施例６は、薄板状弾性体の摩耗が少なく全振れも少ないが、薄板状弾性体の肉厚が厚いため、抜き差し時に薄板状弾性体と円筒状基体が擦れる範囲が広くなることから、わずかに摩耗が発生した。
実施例７は、薄板状弾性体の肉厚がある程度薄いため、旋削加工時における遠心力で十分に延伸しかつ防振作用が十分あるので加工精度が良く、抜き差しの際に、円筒状基体内面に擦れ難いため摩耗もなかった。
実施例８は、びびり振動が無く、全振れも少ない上に薄板状弾性体の摩耗もなかった。薄板状弾性体の垂直方向断面形状が十字状であるため、旋削加工時における遠心力が掛かっても薄板状弾性体と円筒状基体の密着は、薄板状弾性体の垂直方向断面形状が円盤状と比べると多少悪いためか、全振れが少々悪かった。
実施例９は、びびり振動が無く全振れも少ない上に摩耗もなかった。更に、薄板状弾性体の垂直方向断面形状が円盤状であり、薄板状弾性体と円筒状基体との密着が良いため、全振れが小さかった。
実施例１０は、薄板状弾性体が２重構造をとっており、薄板状弾性体と円筒状基体の接触面を耐摩耗性が高い薄板状弾性体にすることで繰返し使用時の耐久性が向上し、全振れが繰返し使用によって悪くならなかった。
From the results of Table 1-1 and Table 1-2, Comparative Example 1 is a case where turning is performed using a conventional core, and chatter vibration and initial total runout are good, Since the thin elastic plate was worn and deteriorated by repeated use, the numerical value of total deflection gradually increased.
In Example 1, since the maximum outer diameter of the thin plate-like elastic body is smaller than the inner diameter of the cylindrical base body, the wear deterioration of the thin plate-like elastic body portion is reduced as compared with the conventional core of Comparative Example 1. Since the difference (B−A) between the maximum outer diameter A of the cylindrical elastic body and the inner diameter B of the cylindrical substrate was small, wear of the thin plate-like elastic body was slightly caused by repeated use.
In Example 2, since the difference (B−A) between the maximum outer diameter A of the thin plate-like elastic body and the inner diameter B of the cylindrical substrate is large, the wear of the thin plate-like elastic body is smaller than that of Example 1, Although the increase of the total runout after 000 runs was suppressed, the initial total runout was somewhat poor because the adhesion between the thin elastic plate and the cylindrical substrate was weak.
In Example 3, there was no wear of the thin plate-like elastic body, and the increase of the total runout after 1,000 times was suppressed, but the thin plate-like elastic body and the cylindrical shape were small because the stretch amount of the thin plate-like elastic body was small. The initial contact was poor or the substrate was weakly adhered.
In Example 4, the difference between the maximum outer diameter A of the thin plate-like elastic body and the inner diameter B of the cylindrical substrate (B−A) and the elongation of the thin plate-like elastic body are both within an appropriate range 1. The cylindrical substrate was in close contact, and chatter vibration did not occur. Further, the thin plate-like elastic body was hardly worn by repeated use.
In Example 5, the lamellar elastic body was less worn and could be turned. However, since the thin elastic body was thin, the anti-vibration action was low and the total runout was slightly worse.
In Example 6, there is little wear of the thin elastic plate and less total vibration. However, since the thin elastic plate is thick, the range in which the thin elastic member and the cylindrical substrate are rubbed during insertion / extraction is increased. Wear occurred.
In Example 7, since the thin plate-like elastic body is thin to some extent, it is sufficiently stretched by the centrifugal force at the time of turning and has sufficient vibration-proofing action, so that the machining accuracy is good, and the inner surface of the cylindrical base body is inserted and removed. There was no wear because it was difficult to rub.
In Example 8, there was no chatter vibration, there was little total vibration, and there was no wear of the thin elastic plate. Since the cross-sectional shape in the vertical direction of the thin elastic plate is cross-shaped, the thin elastic plate and the cylindrical substrate are in close contact with each other even when centrifugal force is applied during turning. The total runout was a little worse, probably because it was a little worse than the previous one.
In Example 9, there was no chatter vibration, there was little total vibration, and there was no wear. Further, since the cross-sectional shape in the vertical direction of the thin plate-like elastic body is a disk shape, and the close contact between the thin plate-like elastic body and the cylindrical base body is good, the total deflection is small.
In Example 10, the thin plate-like elastic body has a double structure, and the contact surface between the thin plate-like elastic body and the cylindrical base is made into a thin plate-like elastic body having high wear resistance, so that durability during repeated use can be obtained. Improved and total runout did not get worse with repeated use.
本発明の態様としては、例えば、以下のとおりである。
＜１＞ 軸と該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とを有する中子を中空円筒状被加工物に挿入する挿入工程と、
前記中空円筒状被加工物の表面を旋削加工する旋削工程と、
を含み、
前記薄板状弾性体が前記中空円筒状被加工物の内径より小さい最大外径を有し、かつ旋削加工時において前記中空円筒状被加工物の内面に接することを特徴とする中空円筒状被加工物の旋削加工方法である。
＜２＞ 前記薄板状弾性体は、非旋削加工時において最大外径が中空円筒状被加工物の内径より１．０ｍｍ以上２．０ｍｍ以下小さく、かつ旋削加工時の回転数において最大外径が２．５ｍｍ以上延伸する前記＜１＞に記載の中空円筒状被加工物の旋削加工方法である。
＜３＞ 前記薄板状弾性体の肉厚が１ｍｍ以上２０ｍｍ以下である前記＜１＞から＜２＞のいずれかに記載の中空円筒状被加工物の旋削加工方法である。
＜４＞ 前記薄板状弾性体の垂直方向断面形状が円盤状である前記＜１＞から＜３＞のいずれかに記載の中空円筒状被加工物の旋削加工方法である。
＜５＞ 前記薄板状弾性体が同心状の多層構造である前記＜１＞から＜４＞のいずれかに記載の中空円筒状被加工物の旋削加工方法である。
＜６＞ 軸と該軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体とを有する中子と、
前記中子を中空円筒状被加工物に挿入する挿入手段と、
前記中空円筒状被加工物の表面を旋削加工する旋削手段と、
を有し、
前記薄板状弾性体が前記中空円筒状被加工物の内径より小さい最大外径を有することを特徴とする中空円筒状被加工物の旋削加工装置である。
＜７＞ 前記薄板状弾性体は、非旋削加工時において最大外径が中空円筒状被加工物の内径より１．０ｍｍ以上２．０ｍｍ以下で小さく、かつ旋削加工時の回転数において最大外径が２．５ｍｍ以上延伸する前記＜６＞に記載の中空円筒状被加工物の旋削加工装置である。
＜８＞ 前記薄板状弾性体の肉厚が１ｍｍ以上２０ｍｍ以下である前記＜６＞から＜７＞のいずれかに記載の中空円筒状被加工物の旋削加工装置である。
＜９＞ 前記薄板状弾性体の垂直方向断面形状が円盤状である前記＜６＞から＜８＞のいずれかに記載の中空円筒状被加工物の旋削加工装置である。
＜１０＞ 前記薄板状弾性体が同心状の多層構造である前記＜６＞から＜９＞のいずれかに記載の中空円筒状被加工物の旋削加工装置である。
＜１１＞ 前記＜１＞から＜５＞のいずれかに記載の旋削加工方法により旋削して形成されたことを特徴とする中空円筒状被加工物である。
＜１２＞ 前記＜１１＞に記載の中空円筒状被加工物からなることを特徴とする電子写真感光体用円筒状基体である。
＜１３＞ 前記＜１２＞に記載の電子写真感光体用円筒状基体上に感光層を有することを特徴とする電子写真感光体である。
＜１４＞ 前記＜１３＞に記載の電子写真感光体を備えたことを特徴とする画像形成装置である。
＜１５＞ 中空円筒状被加工物に挿入し該中空円筒状被加工物の表面を旋削加工する中空円筒状被加工物の旋削加工に用いられる中子であって、
軸と、
前記軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体と、
を有することを特徴とする中子である。
＜１６＞ 前記薄板状弾性体は、非旋削加工時において最大外径が中空円筒状被加工物の内径より１．０ｍｍ以上２．０ｍｍ以下小さく、かつ旋削加工時の回転数において最大外径が２．５ｍｍ以上延伸する前記＜１５＞に記載の中子である。
As an aspect of this invention, it is as follows, for example.
<1> an insertion step of inserting a core having a shaft and a plurality of thin plate-like elastic bodies penetrating the shaft through a spacer into a hollow cylindrical workpiece;
A turning process of turning the surface of the hollow cylindrical workpiece;
Including
The thin cylindrical elastic body has a maximum outer diameter smaller than the inner diameter of the hollow cylindrical workpiece, and is in contact with the inner surface of the hollow cylindrical workpiece during turning. This is a method of turning an object.
<2> The thin plate-like elastic body has a maximum outer diameter of 1.0 mm or more and 2.0 mm or less smaller than the inner diameter of the hollow cylindrical workpiece during non-turning, and a maximum outer diameter at the number of rotations during turning. The method for turning a hollow cylindrical workpiece according to <1>, wherein the workpiece is stretched by 2.5 mm or more.
<3> The method for turning a hollow cylindrical workpiece according to any one of <1> to <2>, wherein the thin plate-like elastic body has a thickness of 1 mm to 20 mm.
<4> The method for turning a hollow cylindrical workpiece according to any one of <1> to <3>, wherein a cross-sectional shape in a vertical direction of the thin plate-like elastic body is a disc shape.
<5> The method for turning a hollow cylindrical workpiece according to any one of <1> to <4>, wherein the thin plate-like elastic body has a concentric multilayer structure.
<6> a core having a shaft and a plurality of thin plate-like elastic bodies penetrating the shaft through a spacer;
An insertion means for inserting the core into a hollow cylindrical workpiece;
Turning means for turning the surface of the hollow cylindrical workpiece,
Have
The thin plate-like elastic body has a maximum outer diameter smaller than an inner diameter of the hollow cylindrical workpiece, and is a turning device for a hollow cylindrical workpiece.
<7> The thin plate-like elastic body has a maximum outer diameter that is smaller than the inner diameter of the hollow cylindrical workpiece by 1.0 to 2.0 mm during non-turning, and a maximum outer diameter at the number of rotations during turning. Is a turning device for a hollow cylindrical workpiece according to the above <6>, in which is stretched by 2.5 mm or more.
<8> The turning apparatus for a hollow cylindrical workpiece according to any one of <6> to <7>, wherein the thin plate-like elastic body has a thickness of 1 mm to 20 mm.
<9> The turning device for a hollow cylindrical workpiece according to any one of <6> to <8>, wherein the thin plate-like elastic body has a disk-like vertical cross-sectional shape.
<10> The turning apparatus for a hollow cylindrical workpiece according to any one of <6> to <9>, wherein the thin plate-like elastic body has a concentric multilayer structure.
<11> A hollow cylindrical workpiece formed by turning by the turning method according to any one of <1> to <5>.
<12> A cylindrical substrate for an electrophotographic photoreceptor, comprising the hollow cylindrical workpiece according to <11>.
<13> An electrophotographic photosensitive member comprising a photosensitive layer on the cylindrical substrate for an electrophotographic photosensitive member according to <12>.
<14> An image forming apparatus comprising the electrophotographic photosensitive member according to <13>.
<15> A core used for turning a hollow cylindrical workpiece to be inserted into a hollow cylindrical workpiece and turning the surface of the hollow cylindrical workpiece,
The axis,
A plurality of thin plate-like elastic bodies penetrating the shaft through a spacer;
It is a core characterized by having.
<16> The thin plate-like elastic body has a maximum outer diameter of 1.0 mm or more and 2.0 mm or less smaller than the inner diameter of the hollow cylindrical workpiece during non-turning, and has a maximum outer diameter at the number of rotations during turning. It is a core as described in said <15> extended | stretched 2.5 mm or more.
前記＜１＞から＜５＞のいずれかに記載の中空円筒状被加工物の旋削加工方法、前記＜６＞から＜１０＞のいずれかに記載の中空円筒状被加工物の旋削加工装置、前記＜１１＞に記載の中空円筒状被加工物、前記＜１２＞に記載の電子写真感光体用円筒状基体、前記＜１３＞に記載の電子写真感光体、前記＜１４＞に記載の画像形成装置、及び前記＜１５＞から＜１６＞のいずれかに記載の中子によると、従来における諸問題を解決し、本発明の目的を達成することができる。 The method for turning the hollow cylindrical workpiece according to any one of <1> to <5>, the turning apparatus for the hollow cylindrical workpiece according to any one of <6> to <10>, The hollow cylindrical workpiece according to <11>, the cylindrical substrate for an electrophotographic photosensitive member according to <12>, the electrophotographic photosensitive member according to <13>, and the image according to <14>. According to the forming apparatus and the core described in any one of <15> to <16>, the conventional problems can be solved and the object of the present invention can be achieved.
１ 薄板状弾性体
２ スペーサー
３ 軸
４ 中空円筒状被加工物の導入部
５ 中空円筒状被加工物の把持部
６ 中空円筒状被加工物
７ 中空円筒状被加工物の把持部
８ 旋削加工装置の連結部
９ 旋削加工装置の連結部
１０ 中子
１１ 貫通孔
１２ バイト
DESCRIPTION OF SYMBOLS 1 Thin elastic body 2 Spacer 3 Axis 4 Introduction part of hollow cylindrical workpiece 5 Holding part of hollow cylindrical workpiece 6 Hollow cylindrical workpiece 7 Holding part of hollow cylindrical workpiece 8 Turning apparatus Connecting part 9 Turning part connecting part 10 Core 11 Through hole 12 Byte
Claims (12)
前記中空円筒状被加工物の表面を旋削加工する旋削工程と、
を含み、
前記薄板状弾性体が前記中空円筒状被加工物の内径より小さい最大外径を有し、かつ旋削加工時において前記中空円筒状被加工物の内面に接することを特徴とする中空円筒状被加工物の旋削加工方法。 An insertion step of inserting a core having a shaft and a plurality of thin plate-like elastic bodies penetrating the shaft through a spacer into a hollow cylindrical workpiece;
A turning process of turning the surface of the hollow cylindrical workpiece;
Including
The thin cylindrical elastic body has a maximum outer diameter smaller than the inner diameter of the hollow cylindrical workpiece, and is in contact with the inner surface of the hollow cylindrical workpiece during turning. Turning method of objects.
前記中子を中空円筒状被加工物に挿入する挿入手段と、
前記中空円筒状被加工物の表面を旋削加工する旋削手段と、
を有し、
前記薄板状弾性体が前記中空円筒状被加工物の内径より小さい最大外径を有することを特徴とする中空円筒状被加工物の旋削加工装置。 A core having a shaft and a plurality of thin plate-like elastic bodies passed through the shaft through a spacer;
An insertion means for inserting the core into a hollow cylindrical workpiece;
Turning means for turning the surface of the hollow cylindrical workpiece,
Have
The thin cylindrical elastic body has a maximum outer diameter smaller than the inner diameter of the hollow cylindrical workpiece, and the hollow cylindrical workpiece turning apparatus.
軸と、
前記軸にスペーサーを介して貫通させた複数枚以上の薄板状弾性体と、
を有することを特徴とする中子。 A core used for turning a hollow cylindrical workpiece to be inserted into a hollow cylindrical workpiece and turning the surface of the hollow cylindrical workpiece,
The axis,
A plurality of lamellar elastic bodies penetrated through the shaft through a spacer;
A core characterized by having.
The thin plate-like elastic body has a maximum outer diameter of 1.0 mm or more and 2.0 mm or less smaller than the inner diameter of the hollow cylindrical workpiece during non-turning, and a maximum outer diameter of 2.5 mm at the number of rotations during turning. The core according to claim 11, which is stretched as described above.
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| JP7092975B2 (en) | 2022-06-29 |
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