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JP2004136378A - Precision polishing method to outer peripheral surface of elastic roller - Google Patents

Precision polishing method to outer peripheral surface of elastic roller Download PDF

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Publication number
JP2004136378A
JP2004136378A JP2002301307A JP2002301307A JP2004136378A JP 2004136378 A JP2004136378 A JP 2004136378A JP 2002301307 A JP2002301307 A JP 2002301307A JP 2002301307 A JP2002301307 A JP 2002301307A JP 2004136378 A JP2004136378 A JP 2004136378A
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JP
Japan
Prior art keywords
elastic roller
rotating shaft
outer peripheral
peripheral surface
elastic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002301307A
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Japanese (ja)
Inventor
Masahiko Iwata
岩田 正彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MINAKUCHI MACHINERY WORKS Ltd
Original Assignee
MINAKUCHI MACHINERY WORKS Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP2002301307A priority Critical patent/JP2004136378A/en
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Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a precision polishing method to the outer peripheral surface of an elastic roller for improving the run-out accuracy of the elastic roller, eliminating chatter, obtaining high quality, and a stable and homogeneous smooth surface in a short time, and obtaining a similar smooth surface even in a thin rotary shaft. <P>SOLUTION: This precision polishing method performs polishing by supporting both ends of a raw material of the elastic roller A having an elastic body layer 2 on the outer periphery of the rotary shaft 1 by chucks 4 and 6 by using a cylindrical grinding machine arranged with a head stock 3 on the left side and a slave head stock 5 on the right side. A pneumatic collet chuck may be used as the chucks 4 and 6, thus obtaining a method for polishing the elastic roller A in a state of a light tensile force applied to the rotary shaft 1. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は帯電ローラー,現像ローラー,トナー供給ローラー,クリーニングローラーなどを精密研摩する際に用いる方法であり、回転軸の外周に弾性体層や導電性弾性体層などを有する弾性ローラーの外周面が均質な平滑表面に仕上げられるための弾性ローラーの外周面に於ける精密研摩作業方法に関する。
【0002】
【従来の技術】
従来の弾性ローラーの外周面に於ける精密研摩作業方法としては、一般に図5に示すような円筒研削盤を用い、該円筒研削盤で弾性体層(2)の外周面の精密研摩作業を行う場合、図3(b)に示すように弾性体層(2)から露出する回転軸(1)の端部が短い方は、左側のヘッドストック(3)に装備されたチャック(4)で支持され、回転軸(1)の長い方は、右側のテールストック(9)に装備された前後移動可能な回転センター(91)で押し付けながら取付けられた状態となる。その後、プランジ方式,プランジオシレーション方式,プランジ加工後トラバース方式,トラバース方式等により砥石(7)で弾性体層(2)の外周面の精密研摩が行われ、弾性ローラー(A)を仕上げていた。尚、この方法でAー4タイプの弾性ローラー(A)を精密研摩する際の振れは平均0.06mm前後で、JIS10点平均粗さは10μmRz前後であるのが一般的であり、安定した数値を得るのは難しかった。又、前記円筒研削盤で弾性体層(2)の外周面の精密研摩作業を行う場合、図3(b)に示すように弾性ローラー(A)の素材は、その部品機構上、ヘッドストック(3)側の回転軸(1)の加える長さが短く、テールストック(9)側の回転軸(1)の加える長さが長い形状のものが多かった。
【0003】
【発明が解決しようとする課題】
しかしながら前記方法で弾性ローラー(A)の回転軸(1)を支持して取付けると、チャック(4)の支持長さが充分でなく弾性ローラー(A)の回転軸(1)の支持は不安定となり易いため、弾性体層(2)の仕上面が悪く、振れやビレ等を殆どなくし、安定した高精度の仕上面を得ることは難しかった。又、長い方の回転軸(1)の端部が回転センター(91)で押し付けられながら取付けられた状態となっているため、細い回転軸(1)が使用された弾性ローラー(A)の素材を、砥石(7)で研摩すると、回転センター(91)による軸方向の押圧力と砥石(7)による押圧力とが回転軸(1)に作用して、回転軸(1)が湾曲され易くなり、弾性体層(2)の仕上げ不良が発生し易い等の問題点があった。
【0004】
近年に於いて、電子写真技術などの進歩に伴い、乾式電子写真装置等の画像形成装置用弾性ローラーの外周表面には、振れ精度が良く、ビレがない均質で高精度の平滑表面が要求され始めているため、上記精密研摩作業では対応出来なくなっている。例えば、現像ローラーの場合は、研摩による表面状態の相違により、トナーの搬送量或いはトナーの帯電性に微妙な違いが生じ、場合によっては画像に欠陥が生じる。従って、JIS10点平均粗さは通常10μmRz以下で、且つ表面粗さの標準偏差は小さいことが要求される。特に帯電ローラーの場合、表面に凹凸があると、この凹凸にトナーが詰って画像不良の原因となるため、ローラー表面は出来るだけ平滑であることが望ましく、JIS10点平均粗さで、通常4μmRz以下が要望されているのが現状である。
【0005】
このため、前記円筒研削盤で図3(b)のようにして、弾性体層(2)の外周面の精密研摩作業が行われると、安定した表面粗さは得難いが、時間を掛けて熟練技術者が加工し、その後、規格内に入っているものだけを選別して使用する方法が行われているのが現状である。
【0006】
尚、前記弾性ローラー(A)の回転軸(1)の支持が安定するように、弾性ローラー(A)の素材を図3(b)の状態と反対に支持して取付ける。つまり、弾性体層(2)から露出する長い方の回転軸(1)の端部をチャック(4)で支持し、短い方の端部を回転センター(91)に押し付けて弾性ローラー(A)の素材が取付けられた状態で、砥石(7)により研摩して仕上げる。すると、熟練技術者であれば比較的容易に平均粗さが6μmRz前後に仕上げることが可能であることが判明した。しかしながら、砥石(7)による仕上面には図4に示すような方向性のある研摩痕が残るため、図3(b)の状態と反対になってしまう。従って、例え上記状態で帯電ローラーを仕上げても、表面粗さは従来方法よりも小さくなるが、表面の凹凸にトナーが詰まり易い向きとなるため、画像不良の原因となり易くなって、使用できないものとなってしまう。従って、必ず図3(b)の状態に弾性ローラー(A)の素材を取付けて研摩作業が行われているのが現状である。一方、前記弾性ローラー(A)の回転軸(1)の支持が安定するように、弾性ローラー(A)の素材を図3(a)に示すように回転軸(1)の両端部をチャック(4)で支持して取付けることは考えられるが、ヘッドストック(3)を両側に設けると、円筒研摩盤の製造費が高くなってしまうと共にチャック(4)の芯合わせが非常に難しいため、ヘッドストック(3)が両側に設けられた円筒研摩盤を製造する発想は従来にはなかった。
【0007】
本発明は弾性ローラーの振れ精度を向上させ且つビリをなくして高い品質の安定した均質な平滑表面が短時間で得られる弾性ローラーの外周面に於ける精密研摩作業方法を提供することを目的とする。
【0008】
本発明の他の目的としては、弾性ローラーの回転軸に軽い引張力を与えて研摩することにより、細い回転軸であっても振れ精度が良く、ビリがなく、高い品質の安定した均質な平滑表面を得ることが可能となる弾性ローラーの外周面に於ける精密研摩作業方法を提供するにある。
【0009】
【課題を解決するための手段】
上記問題点を解消するために本発明は成されたものであり、つまり、本発明者によって従来のテールストックの代りに、ヘッドストックと同等の剛性を有した回転機構とチャックを装備し、且つ弾性ローラーの着脱が可能となるための移動装置を備えた従属用ヘッドストックが設けられ、左側にはヘッドストックを配置すると共に右側には従属用ヘッドストックを配置して撓みの少ない円筒研削盤が開発され、この円筒研削盤を使用して、回転軸の外周に弾性体層を有する弾性ローラーの素材の外周面が研摩される際、回転軸の両端がチャックで支持されて研摩作業を行う精密研摩作業方法とする。またチャックに空気式コレットチャックなどを用いて、回転軸に軽い引張力が与えられた状態で弾性ローラーを研摩させる方法とすれば良い。
【0010】
【発明の実施の形態】
図1、図2は本実施形態で使用する円筒研削盤を示す図であり、図中の番号について説明する。(1)はアルミニウム,ステンレス鋼,マグネシウム合金などの金属製の回転軸であり、該回転軸(1)は弾性ローラー(A)の芯金である(図3参照)。(2)は回転軸(1)の外周に設けられた弾性体層であり、該弾性体層(2)は通常ゴム又はポリウレタンなどの高分子エラストマーやフォームを用いると良い。尚、前記弾性体層(2)の形状は図中のものに限定されるものではない。(3)は円筒研削盤のヘッドストックであり、該ヘッドストック(3)には回転機構(31)と駆動モーター(32)とがあり、従来と同一である。(4)はヘッドストック(3)に装備されたチャックであり、該チャック(4)としては空気式コレットチャックや各種のチャック装置を用いれば良いが、空気式コレットチャックを用いるのが好ましい。(5)は従来のテールストック(9)の代りに設けた従属用ヘッドストックであり、該従属用ヘッドストック(5)には、前記ヘッドストック(3)と同等の剛性を有した回転機構(51)と、弾性ローラー(A)の着脱を行えるように30mm前後移動可能とさせるための移動装置(52)とがある。尚、前記従属用ヘッドストック(5)は、上部に回転機構(51)を配置し、下部に移動装置(52)を設けることにより、精度を要する回転機構(51)の部分は精度を保持させて組立てることができ、またチャック(4)との芯合わせは下部の移動装置(52)の上面を調整することにより、チャック(4)との芯合わせが容易に行えるものとなった。(6)は従属用ヘッドストック(5)に装備されたチャックであり、該チャック(6)としては空気式コレットチャックや各種のチャック装置を用いれば良いが、空気式コレットチャックを用いるのが好ましい。(7)は砥石で、(8)は砥石用のモーターである。
【0011】
次に図1、図2に示す円筒研削盤を使用し、本発明の弾性ローラーの外周面に於ける精密研摩作業方法について説明する。予め本発明者が開発した前記円筒研削盤を用意しておく。先ず弾性ローラー(A)を図3(a)のように配置し、その回転軸(1)の左端部をチャック(4)で従来方法と同様に支持する。次に従属用ヘッドストック(5)の移動装置(52)によってチャック(6)を回転軸(1)側に近付けると共にその右端部をチャック(6)で支持させて取付ける。この時、回転軸(1)の右端部がチャック(6)に支持されると、その回転軸(1)が若干引張られて取付けられる。その後、弾性ローラー(A)の弾性体層(2)の外周に砥石(7)を当て、研摩作業を行う。研摩後、回転軸(1)の右端部はチャック(6)から外されて、移動装置(52)によってチャック(6)が右側に約30mm移動する。更に回転軸(1)の左端部がチャック(4)から外されることにより、研摩作業が完了するのである。
【0012】
このようにしてAー4タイプの弾性ローラー(A)を100本研摩作業したところ、前記Aー4タイプの弾性ローラー(A)の振れは0.02mm以内となり、且つJIS10点平均粗さは3μmRz以下に収まることが確認された。
【0013】
【発明の効果】
本発明はこのように構成させたことにより、下記に記載する効果を有する。
【0014】
請求項1のように弾性ローラー(A)の素材の外周面を円筒研削盤で研摩する際、弾性体層(2)から露出する回転軸(1)の短い方の端部をヘッドストック(3)に装備されたチャック(4)で支持し、回転軸(1)の反対側端部を、従来のテールストック(9)の代りに設けた従属用ヘッドストック(5)に装備したチャック(6)で支持することにより、回転軸(1)の両端がチャック(4),(6)で確実に支持された状態で研摩作業を行うことが出来るため、回転軸(1)は殆ど振れず且つビリがなく取付けられ、弾性ローラー(A)の弾性体層(2)の外周面が高い品質の安定した均質な平滑表面を得る仕上げ方法となる。このため、近年の乾式電子写真装置等の画像形成装置用弾性ローラー(A)として容易に対応出来るものとなった。また従来の如き熟練技術者が時間を掛けて加工する必要がなく、更に選別検査が簡略化できるものとなるので、弾性ローラー(A)の生産性が向上されるものとなる。
【0015】
請求項2のようにチャック(4),(6)によって回転軸(1)に軽い引張力を与えた状態で研摩することにより、振れ精度がより良くなり、ビリが殆どなくなって高い品質の安定した均質な平滑表面が得られ易くなる。更に細い回転軸(1)が用いられた弾性ローラー(A)を精密研摩作業しても従来の如き反りがなくなるため、多種多様な弾性ローラー(A)の弾性体層(2)の外周面がより高い精度で仕上げることが可能となる。
【0016】
請求項3に示すようにチャック(4),(6)に空気式コレットチャックを用いれば、回転軸(1)を支持する作業が簡単で且つ必ず軽い引張力が回転軸(1)に与えられた状態で研摩でき、請求項2と同様な効果が確実に得られる。
【図面の簡単な説明】
【図1】本発明の実施形態で使用する円筒研削盤の平面を示す説明図である。
【図2】本発明の実施形態で使用する円筒研削盤の正面を示す説明図である。
【図3】本発明の実施形態と従来の実施形態を比較した説明図である。
【図4】円筒研削盤によって研摩された仕上表面の凹凸状態を示す説明図である。
【図5】従来の実施形態で使用する円筒研削盤の平面を示す説明図である。
【符号の説明】
A 弾性ローラー
1 回転軸
2 弾性体層
3 ヘッドストック
4,6 チャック
5 従属用ヘッドストック
51 回転機構
52 移動装置
7 砥石
9 テールストック
91 回転センター
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is a method used for precision polishing of a charging roller, a developing roller, a toner supply roller, a cleaning roller, and the like. The outer peripheral surface of an elastic roller having an elastic layer or a conductive elastic layer on the outer periphery of a rotating shaft is used. The present invention relates to a precision polishing work method on an outer peripheral surface of an elastic roller for finishing a uniform smooth surface.
[0002]
[Prior art]
As a conventional precision grinding method for the outer peripheral surface of an elastic roller, a cylindrical grinder as shown in FIG. 5 is generally used, and the outer peripheral surface of the elastic layer (2) is precisely ground by the cylindrical grinder. In this case, as shown in FIG. 3B, the shorter end of the rotating shaft (1) exposed from the elastic layer (2) is supported by the chuck (4) mounted on the left headstock (3). The longer rotation shaft (1) is attached while being pressed by a front-rear movable rotation center (91) mounted on the right tail stock (9). After that, the outer peripheral surface of the elastic layer (2) was precisely polished with a grindstone (7) by a plunge method, a plunge oscillation method, a traverse method after the plunge processing, a traverse method, etc., thereby finishing the elastic roller (A). . In addition, the run-out when precision-polishing an A-4 type elastic roller (A) by this method is generally about 0.06 mm on average, and the JIS 10-point average roughness is generally about 10 μmRz, which is a stable numerical value. Was difficult to get. In addition, when precision grinding work of the outer peripheral surface of the elastic layer (2) is performed by the cylindrical grinding machine, the material of the elastic roller (A) is, as shown in FIG. In many cases, the length added to the rotation shaft (1) on the 3) side was short, and the length added to the rotation shaft (1) on the tailstock (9) was long.
[0003]
[Problems to be solved by the invention]
However, when the rotating shaft (1) of the elastic roller (A) is supported and mounted by the above method, the supporting length of the chuck (4) is not sufficient, and the supporting of the rotating shaft (1) of the elastic roller (A) is unstable. Therefore, the finished surface of the elastic layer (2) was poor, and it was difficult to obtain a stable and highly accurate finished surface with almost no run-out or burr. Further, since the end of the longer rotating shaft (1) is attached while being pressed by the rotating center (91), the material of the elastic roller (A) using the thin rotating shaft (1) is used. Is polished with a grinding wheel (7), the axial pressing force of the rotating center (91) and the pressing force of the grinding stone (7) act on the rotating shaft (1), and the rotating shaft (1) is easily curved. Thus, there is a problem that the finishing failure of the elastic layer (2) is likely to occur.
[0004]
In recent years, with the progress of electrophotography technology and the like, the outer peripheral surface of an elastic roller for an image forming apparatus such as a dry electrophotographic apparatus has been required to have a uniform and high-precision smooth surface with good runout accuracy and no undulation. Since it has begun, it is no longer possible to cope with the above precision polishing work. For example, in the case of a developing roller, a slight difference occurs in the amount of toner transported or the chargeability of toner due to a difference in surface state due to polishing, and in some cases, an image is defective. Therefore, it is required that the JIS 10-point average roughness is usually 10 μmRz or less and the standard deviation of the surface roughness is small. Particularly, in the case of the charging roller, if the surface has irregularities, the toner is clogged in the irregularities and causes an image defect. Therefore, it is desirable that the roller surface is as smooth as possible, and the JIS 10-point average roughness is usually 4 μmRz or less. Is currently being requested.
[0005]
For this reason, when the outer peripheral surface of the elastic layer (2) is precisely polished as shown in FIG. 3B by the cylindrical grinder, it is difficult to obtain a stable surface roughness, but it takes time and skill. At present, there is a method in which a technician processes and then selects and uses only those that are within the standard.
[0006]
The material of the elastic roller (A) is supported and mounted in the opposite direction to the state shown in FIG. 3B so that the support of the rotation shaft (1) of the elastic roller (A) is stabilized. That is, the end of the longer rotating shaft (1) exposed from the elastic layer (2) is supported by the chuck (4), and the shorter end is pressed against the rotating center (91) to make the elastic roller (A). In the state where the raw material is attached, it is polished and finished with a grindstone (7). Then, it turned out that a skilled technician can relatively easily finish the average roughness to around 6 μmRz. However, since a directional polishing mark as shown in FIG. 4 remains on the finished surface by the grindstone (7), the state is opposite to the state shown in FIG. 3 (b). Therefore, even if the charging roller is finished in the above-mentioned state, the surface roughness becomes smaller than that of the conventional method, but the toner tends to be clogged in the unevenness of the surface. Will be. Therefore, at present, the polishing operation is always performed by attaching the material of the elastic roller (A) to the state shown in FIG. On the other hand, as shown in FIG. 3A, the material of the elastic roller (A) is chucked at both ends of the elastic shaft (1) so that the support of the elastic shaft (1) of the elastic roller (A) is stabilized. Although it is conceivable that the head stock (3) is provided on both sides, it is conceivable that the head stock (3) is mounted on both sides, which increases the manufacturing cost of the cylindrical polishing machine and makes it very difficult to align the chuck (4). There has never been an idea of manufacturing a cylindrical polishing machine provided with the stock (3) on both sides.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to provide a precision polishing work method on an outer peripheral surface of an elastic roller in which a run-out accuracy of the elastic roller is improved, and a high quality stable and uniform smooth surface can be obtained in a short time by eliminating runout. I do.
[0008]
Another object of the present invention is to provide a rotating shaft of an elastic roller with a light tensile force for polishing, so that even with a thin rotating shaft, the runout accuracy is good, there is no vibration, and a high quality stable and uniform smooth surface is obtained. An object of the present invention is to provide a method for precision polishing work on the outer peripheral surface of an elastic roller capable of obtaining a surface.
[0009]
[Means for Solving the Problems]
The present invention has been made to solve the above problems, that is, the present inventor has provided a rotating mechanism and a chuck having the same rigidity as a headstock, instead of a conventional tailstock, and A subordinate headstock equipped with a moving device for enabling the attachment and detachment of the elastic roller is provided, and a cylindrical grinder with less deflection by arranging the headstock on the left side and arranging the subordinate headstock on the right side is provided. Developed using this cylindrical grinder, when the outer peripheral surface of an elastic roller material having an elastic layer on the outer periphery of the rotating shaft is polished, both ends of the rotating shaft are supported by chucks and precision grinding is performed. Polishing work method. Alternatively, a method may be employed in which a pneumatic collet chuck or the like is used as the chuck, and the elastic roller is polished in a state where a light tensile force is applied to the rotating shaft.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
1 and 2 are views showing a cylindrical grinder used in the present embodiment, and the numbers in the figures will be described. (1) is a rotating shaft made of metal such as aluminum, stainless steel, and magnesium alloy, and the rotating shaft (1) is a core of the elastic roller (A) (see FIG. 3). (2) is an elastic layer provided on the outer periphery of the rotating shaft (1), and the elastic layer (2) is preferably made of a polymer elastomer or foam such as rubber or polyurethane. The shape of the elastic layer (2) is not limited to the shape shown in the drawing. Reference numeral (3) denotes a head stock of a cylindrical grinding machine. The head stock (3) has a rotating mechanism (31) and a drive motor (32), which are the same as the conventional one. Reference numeral (4) denotes a chuck mounted on the headstock (3). As the chuck (4), a pneumatic collet chuck or various chuck devices may be used, but a pneumatic collet chuck is preferably used. (5) is a subordinate headstock provided in place of the conventional tailstock (9). The subordinate headstock (5) has a rotating mechanism (R) having the same rigidity as the headstock (3). 51), and a moving device (52) for enabling the elastic roller (A) to move back and forth by 30 mm so that the elastic roller (A) can be attached and detached. The subordinate headstock (5) is provided with a rotating mechanism (51) at the upper part and a moving device (52) at the lower part, so that the part of the rotating mechanism (51) requiring precision can maintain the precision. The alignment with the chuck (4) can be easily performed by adjusting the upper surface of the lower moving device (52). (6) is a chuck mounted on the subordinate headstock (5). As the chuck (6), a pneumatic collet chuck or various chuck devices may be used, but a pneumatic collet chuck is preferably used. . (7) is a grindstone, and (8) is a motor for the grindstone.
[0011]
Next, the method of precision polishing on the outer peripheral surface of the elastic roller of the present invention using the cylindrical grinder shown in FIGS. 1 and 2 will be described. The cylindrical grinding machine developed by the present inventors is prepared in advance. First, the elastic roller (A) is arranged as shown in FIG. 3 (a), and the left end of the rotating shaft (1) is supported by the chuck (4) as in the conventional method. Next, the chuck (6) is moved closer to the rotation shaft (1) by the moving device (52) of the slave head stock (5), and the right end is supported by the chuck (6). At this time, when the right end of the rotating shaft (1) is supported by the chuck (6), the rotating shaft (1) is attached by being slightly pulled. Thereafter, a grindstone (7) is applied to the outer periphery of the elastic layer (2) of the elastic roller (A) to perform a polishing operation. After polishing, the right end of the rotating shaft (1) is detached from the chuck (6), and the chuck (6) is moved to the right by about 30 mm by the moving device (52). Further, when the left end of the rotating shaft (1) is removed from the chuck (4), the polishing operation is completed.
[0012]
When 100 A-4 type elastic rollers (A) were polished in this manner, the runout of the A-4 type elastic roller (A) was within 0.02 mm, and the JIS 10-point average roughness was 3 μmRz. It was confirmed that it fits below.
[0013]
【The invention's effect】
The present invention having the above-described configuration has the following effects.
[0014]
When the outer peripheral surface of the material of the elastic roller (A) is polished by a cylindrical grinder as in claim 1, the shorter end of the rotating shaft (1) exposed from the elastic layer (2) is used as the headstock (3). ), And the other end of the rotating shaft (1) is attached to a subordinate headstock (5) provided in place of the conventional tailstock (9). ), The grinding operation can be performed with both ends of the rotating shaft (1) securely supported by the chucks (4) and (6), so that the rotating shaft (1) hardly swings and It is a finishing method in which the elastic layer (2) of the elastic roller (A) is attached without any sway, and the outer peripheral surface of the elastic layer (2) obtains a stable, uniform and smooth surface of high quality. Therefore, the elastic roller (A) for an image forming apparatus such as a dry electrophotographic apparatus in recent years can be easily used. Further, since it is not necessary for a skilled technician to take a long time to perform the processing as in the related art, and the sorting inspection can be further simplified, the productivity of the elastic roller (A) is improved.
[0015]
Polishing the rotary shaft (1) with a light tensile force applied by the chucks (4) and (6) as in claim 2 improves the run-out accuracy, eliminates almost any slip, and stabilizes high quality. It becomes easy to obtain a uniform and smooth surface. Even if the elastic roller (A) using the thinner rotating shaft (1) is subjected to precision polishing work, the warpage as in the prior art is eliminated, so that the outer peripheral surface of the elastic layer (2) of various elastic rollers (A) is reduced. It is possible to finish with higher accuracy.
[0016]
If a pneumatic collet chuck is used for the chucks (4) and (6), the operation of supporting the rotating shaft (1) is simple and a light tensile force is always applied to the rotating shaft (1). Polishing can be performed in a state of being held, and the same effect as in claim 2 can be reliably obtained.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a plane of a cylindrical grinding machine used in an embodiment of the present invention.
FIG. 2 is an explanatory diagram showing a front surface of a cylindrical grinding machine used in the embodiment of the present invention.
FIG. 3 is an explanatory diagram comparing an embodiment of the present invention with a conventional embodiment.
FIG. 4 is an explanatory view showing an uneven state of a finished surface polished by a cylindrical grinder.
FIG. 5 is an explanatory view showing a plane of a cylindrical grinding machine used in a conventional embodiment.
[Explanation of symbols]
A elastic roller 1 rotating shaft 2 elastic layer 3 headstock 4, 6 chuck 5 subordinate headstock 51 rotating mechanism 52 moving device 7 grinding stone 9 tailstock 91 rotation center

Claims (3)

回転軸(1)の外周に弾性体層(2)を有する弾性ローラー(A)の素材の外周面を円筒研削盤で研摩する際、前記弾性体層(2)から露出する回転軸(1)の短い方の端部をヘッドストック(3)に装備されたチャック(4)で支持し、前記回転軸(1)の短い方の端部と反対側端部をテールストック(9)に装備された回転センター(91)で支持しながら砥石(7)によって研摩作業が行われる精密研摩作業方法に於いて、前記テールストック(9)の代りに、前記ヘッドストック(3)と同等の剛性を有した回転機構(51)とチャック(6)を装備し、且つ前記弾性ローラー(A)の着脱が可能となるための移動装置(52)を備えた従属用ヘッドストック(5)が設けられ、前記回転軸(1)の両端部を前記チャック(4),(6)で支持して研摩作業が行われることを特徴とする弾性ローラーの外周面に於ける精密研摩作業方法。When the outer peripheral surface of the material of the elastic roller (A) having the elastic layer (2) on the outer periphery of the rotating shaft (1) is polished with a cylindrical grinder, the rotating shaft (1) exposed from the elastic layer (2). Is supported by a chuck (4) mounted on a headstock (3), and an end opposite to the short end of the rotating shaft (1) is mounted on a tailstock (9). In the precision polishing method in which the polishing is performed by the grindstone (7) while being supported by the rotating center (91), the tailstock (9) has the same rigidity as the headstock (3) instead of the tailstock (9). A subordinate headstock (5) provided with a rotating mechanism (51) and a chuck (6), and a moving device (52) for allowing the elastic roller (A) to be attached and detached. The both ends of the rotating shaft (1) are connected to the chucks (4), ( In precision polishing working methods on the outer peripheral surface of the elastic roller, wherein a) supporting and polishing working on is performed. 前記チャック(4),(6)によって前記回転軸(1)が、軽い引張力を与えた状態で研摩される請求項1記載の弾性ローラーの外周面に於ける精密研摩作業方法。2. The method according to claim 1, wherein the rotating shaft is polished by the chucks while applying a slight tensile force. 前記チャック(4),(6)として、空気式コレットチャックが用いられた請求項1記載の弾性ローラーの外周面に於ける精密研摩作業方法。2. The method for precision polishing on an outer peripheral surface of an elastic roller according to claim 1, wherein a pneumatic collet chuck is used as said chucks (4) and (6).
JP2002301307A 2002-10-16 2002-10-16 Precision polishing method to outer peripheral surface of elastic roller Pending JP2004136378A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007015044A (en) * 2005-07-06 2007-01-25 Canon Chemicals Inc Rubber roll grinding method and rubber roll
JP2008279525A (en) * 2007-05-08 2008-11-20 Bridgestone Corp Grinding device for elastic roller
JP2013052476A (en) * 2011-09-05 2013-03-21 Shin Etsu Polymer Co Ltd Method of polishing tubular elastic body, method of manufacturing elastic roller, and elastic roller
CN120516515A (en) * 2025-07-23 2025-08-22 宁波迈科隆精密机械制造有限公司 A high-precision bearing roller grinding equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007015044A (en) * 2005-07-06 2007-01-25 Canon Chemicals Inc Rubber roll grinding method and rubber roll
JP2008279525A (en) * 2007-05-08 2008-11-20 Bridgestone Corp Grinding device for elastic roller
JP2013052476A (en) * 2011-09-05 2013-03-21 Shin Etsu Polymer Co Ltd Method of polishing tubular elastic body, method of manufacturing elastic roller, and elastic roller
CN120516515A (en) * 2025-07-23 2025-08-22 宁波迈科隆精密机械制造有限公司 A high-precision bearing roller grinding equipment

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