JP2008296328A - Valve element polishing device - Google Patents

Valve element polishing device Download PDF

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Publication number
JP2008296328A
JP2008296328A JP2007145019A JP2007145019A JP2008296328A JP 2008296328 A JP2008296328 A JP 2008296328A JP 2007145019 A JP2007145019 A JP 2007145019A JP 2007145019 A JP2007145019 A JP 2007145019A JP 2008296328 A JP2008296328 A JP 2008296328A
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valve body
valve
main body
polishing
surface plate
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JP2007145019A
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JP5183971B2 (en
Inventor
Takayuki Suzuki
孝之 鈴木
Shinichiro Ono
晋一郎 小野
Makoto Fujiwara
誠 藤原
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JMP KK
Taiyo Nippon Sanso Engineering Corp
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JMP KK
Taiyo Nippon Sanso Engineering Corp
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  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve element polishing device not causing the variation of finished state by worker without requiring technique or skill during the polishing operation for the valve element of a valve. <P>SOLUTION: This valve element polishing device 10 for polishing the seal surface of valve element 41 of a safety valve comprises: a surface plate 11; a glass pane 12 laid on one surface 11a of the surface plate 11; a strut 13 vertically installed on one surface 11a of the surface plate 11; a body 14 secured to the strut 13 through a support part 15 and having a pressing means; and a spherical body 16 interposed between the body 14 and the valve element 41 disposed on one surface 11a of the surface plate 11 for applying the force from the body 14 to the valve element 41. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、安全弁などの弁類の内部の部品である弁体の研磨を行う研磨装置に関し、さらに詳しくは、定盤、弁体固定冶具、弁体固定ハンドルなどから構成される弁体研磨装置に関する。   The present invention relates to a polishing apparatus that polishes a valve body that is an internal part of a valve such as a safety valve, and more specifically, a valve body polishing apparatus that includes a surface plate, a valve body fixing jig, a valve body fixing handle, and the like. About.

水、ガス、油などの流体を貯えるためのタンクなどの容器には、その内部圧力が規定以上の圧力になった場合、それ以上の圧力の上昇を防止し、容器の破損を防止するために、安全弁などの弁類が設けられている。この安全弁は、その内部部品として、一方のシール面（着座面）を有する弁体と、その弁体を着座させる他方のシール面（弁座面）を有する弁座形成体とを備えている。この安全弁は、弁体のシール面と弁座形成体のシール面の間を開いて開状態（規定圧力（設定圧力）以下では閉状態）になることによって、上記の流体を容器外へ逃がすことにより、容器内の圧力を規定圧力まで圧力を降下させる。   For containers such as tanks for storing fluids such as water, gas, oil, etc., when the internal pressure exceeds the specified pressure, to prevent further pressure increase and damage to the container Valves such as safety valves are provided. This safety valve includes, as internal parts, a valve body having one seal surface (seat surface) and a valve seat forming body having the other seal surface (valve seat surface) on which the valve body is seated. This safety valve opens the gap between the sealing surface of the valve body and the sealing surface of the valve seat forming body to open the state (closed state below the specified pressure (set pressure)), thereby allowing the fluid to escape from the container. Thus, the pressure in the container is reduced to a specified pressure.

このような安全弁は、経年劣化などにより、規定圧力以下においても開状態となる現象（出流れ）が発生することがある。このような現象は、安全弁の弁体において、そのシール面の平滑度が損なわれることにより、弁体と弁座形成体との密着性が悪くなることに起因している。
そこで、このような現象が発生した場合、従来、安全弁の内部から弁体を取り出し、作業員の手作業によって、その弁体のシール面を研磨することが行われていた。すなわち、作業員が弁体を直接、手で保持して回転させながら、ステンレス鋼製の定盤上に設置した研磨紙や研磨剤により、その弁体のシール面を研磨し、そのシール面を平滑にすることが行われている。 Such a safety valve may experience an open state (outflow) even under a specified pressure due to deterioration over time. Such a phenomenon is caused by the fact that in the valve body of the safety valve, the smoothness of the sealing surface is impaired, resulting in poor adhesion between the valve body and the valve seat forming body.
Therefore, when such a phenomenon occurs, conventionally, the valve body has been taken out from the inside of the safety valve, and the sealing surface of the valve body has been polished manually by an operator. In other words, while the operator directly holds and rotates the valve body by hand, the sealing surface of the valve body is polished with abrasive paper or an abrasive placed on a stainless steel surface plate, and the seal surface is removed. Smoothing is done.

しかしながら、作業員の手作業による弁体の研磨作業には、職人的な技術や熟練が要求されるため、作業者によって仕上がりの状態（シール面の平滑性）にばらつきが生じるという問題があった。
なお、本件出願人は、これまでに、弁体の研磨装置に関する知見を有していなかった。 However, since the craftsman's skill and skill are required for the manual polishing of the valve body, there is a problem that the finished state (smoothness of the seal surface) varies depending on the worker. .
In addition, the applicant of the present invention has never had knowledge about a polishing apparatus for a valve body.

本発明は、上記事情に鑑みてなされたものであって、弁類の弁体の研磨作業において、職人的な技術や熟練を必要とすることなく、作業者によって仕上がりの状態にばらつきが生じない弁体研磨装置を提供することを目的とする。   The present invention has been made in view of the above circumstances, and in the polishing work of the valve body of the valves, there is no variation in the finished state by the operator without requiring craftsmanship techniques and skill. An object is to provide a valve polishing apparatus.

本発明の弁体研磨装置は、弁類の弁体のシール面を研磨するための弁体研磨装置であって、定盤と、該定盤の一方の面に立設された支柱と、該支柱に支持部を介して固定され、押圧手段を備えた本体と、該本体と前記定盤の一方の面に配された弁体との間に介在され、前記本体からの押圧力を前記弁体に加えるための球体とを備えてなることを特徴とする。   A valve body polishing apparatus of the present invention is a valve body polishing apparatus for polishing a sealing surface of a valve body of a valve, and includes a surface plate, a support column erected on one surface of the surface plate, A main body provided with a pressing means and fixed to a support through a support portion, and a valve body disposed on one surface of the main body and the surface plate, the pressing force from the main body is applied to the valve. And a sphere for adding to the body.

本発明の弁体研磨装置によれば、定盤の一方の面上にフィルム研磨材を載置するか、あるいは、研磨剤を塗布し、これらフィルム研磨材あるいは研磨剤上に弁体を配置し、さらに、弁体の凹部に嵌合した球体を介して、本体と弁体を接続することにより、本体の中心軸と、弁体の中心軸とが多少ずれていても、本体により弁体に対して均等に押圧力を加えることができるので、弁体を手で回転させても、そのシール面の研磨作業にばらつきが生じない。したがって、本発明の弁体研磨装置を用いた弁体の研磨作業によれば、作業者の技量や熟練を必要とすることがなく、本体の中心軸と弁体の中心軸の位置合わせなどの非常に手間がかかる作業を省略することができるため作業効率が向上するとともに、常に弁体のシール面をほぼ均一な平滑面に仕上げることができる。   According to the valve body polishing apparatus of the present invention, a film abrasive is placed on one surface of the surface plate, or an abrasive is applied, and the valve body is disposed on the film abrasive or the abrasive. Furthermore, by connecting the main body and the valve body via a sphere fitted into the concave portion of the valve body, even if the central axis of the main body and the central axis of the valve body are slightly displaced, On the other hand, since the pressing force can be applied evenly, even if the valve body is rotated by hand, there is no variation in the polishing operation of the sealing surface. Therefore, according to the polishing operation of the valve body using the valve body polishing apparatus of the present invention, the operator's skill and skill are not required, and the center axis of the main body and the center axis of the valve body are aligned. Since work that is very time-consuming can be omitted, the work efficiency is improved and the sealing surface of the valve body can always be finished to a substantially uniform smooth surface.

本発明の弁体研磨装置の最良の形態について説明する。
なお、この形態は、発明の趣旨をより良く理解させるために具体的に説明するものであり、特に指定のない限り、本発明を限定するものではない。 The best mode of the valve body polishing apparatus of the present invention will be described.
This embodiment is specifically described for better understanding of the gist of the invention, and does not limit the present invention unless otherwise specified.

図１は、本発明の弁体研磨装置の一実施形態を示す概略斜視図である。図２は、本発明の弁体研磨装置の一実施形態を示し、（ａ）は概略平面図、（ｂ）は一部断面の概略正面図である。図３は、本発明の弁体研磨装置の一実施形態を構成する本体の概略断面図である。
本実施形態の弁体研磨装置１０は、定盤１１と、この定盤１１の一方の面１１ａに載設されたガラス板１２と、定盤１１の一方の面１１ａに立設された支柱１３と、この支柱１３に支持部１５を介して固定され、押圧手段を備えた本体１４と、この本体１４と定盤１１の一方の面１１ａに配された弁体との間に介在させ、本体１４からの押圧力を弁体に加えるための球体１６とから概略構成されている。 FIG. 1 is a schematic perspective view showing an embodiment of the valve body polishing apparatus of the present invention. 2A and 2B show an embodiment of a valve body polishing apparatus of the present invention, in which FIG. 2A is a schematic plan view, and FIG. 2B is a schematic front view with a partial cross section. FIG. 3 is a schematic cross-sectional view of the main body constituting one embodiment of the valve body polishing apparatus of the present invention.
The valve body polishing apparatus 10 according to the present embodiment includes a surface plate 11, a glass plate 12 placed on one surface 11 a of the surface plate 11, and a column 13 erected on one surface 11 a of the surface plate 11. And interposed between the main body 14 fixed to the column 13 via the support portion 15 and provided with pressing means, and the valve body disposed on the one surface 11a of the surface plate 11 and the main body. And a spherical body 16 for applying a pressing force from 14 to the valve body.

定盤１１は、ステンレス鋼などの耐食性に優れる鋼材からなる円盤状の基材である。
定盤１１は、その一方の面１１ａの中央部にガラス板１２を嵌脱可能に嵌合するための凹部１１ｂが設けられている。この凹部１１ｂは、その深さが、ここにガラス板１２を嵌合した場合、ガラス板１２の外周面の少なくとも一部が露出するように形成されている。これにより、ガラス板１２は、定盤１１の一方の面１１ａに、その面よりも突出した状態で固定され、ガラス板１２の表面１２ａと、定盤１１の一方の面１１ａとは同一面上に配されておらず、両者の間には段差が設けられている。 The surface plate 11 is a disk-shaped base material made of a steel material having excellent corrosion resistance such as stainless steel.
The platen 11 is provided with a concave portion 11b for fitting the glass plate 12 in a detachable manner at the center of the one surface 11a. The depth of the recess 11b is formed such that at least a part of the outer peripheral surface of the glass plate 12 is exposed when the glass plate 12 is fitted here. Thereby, the glass plate 12 is fixed to one surface 11a of the surface plate 11 in a state of protruding from the surface, and the surface 12a of the glass plate 12 and the one surface 11a of the surface plate 11 are on the same surface. There is a step between them.

また、定盤１１の外縁部には、その厚み方向に貫通し、支柱１３を固定するためのネジ孔１１ｃが穿設されている。
さらに、定盤１１の外縁部には、その厚み方向に貫通し、球体１５を一時的に載置することが可能な複数の貫通孔１１ｄが等間隔に穿設されている。 In addition, a screw hole 11 c is formed in the outer edge portion of the surface plate 11 so as to penetrate in the thickness direction and fix the support column 13.
Furthermore, a plurality of through-holes 11d that penetrate the outer surface of the surface plate 11 in the thickness direction and can temporarily place the sphere 15 are formed at equal intervals.

支柱１３は、ステンレス鋼などの耐食性に優れる鋼材からなる円柱状の部材である。
支柱１３は、定盤１１に設けられたネジ孔１１ｃに支柱１３の一端部に設けられたネジ部１３ａが螺合されることにより、定盤１１の一方の面１１ａに対して垂直に固定されている。 The support | pillar 13 is a column-shaped member which consists of steel materials excellent in corrosion resistance, such as stainless steel.
The column 13 is fixed perpendicular to the one surface 11 a of the surface plate 11 by screwing a screw portion 13 a provided at one end of the column 13 into a screw hole 11 c provided in the surface plate 11. ing.

本体１４は、主として、ステンレス鋼などの耐食性に優れる鋼材からなる部材から構成されている。
本体１４は、支柱１３に本体１４を固定するための支持部１５と、ガラス板１２の表面１２ａに弁体を固定するためのホルダ部１７とから概略構成されている。また、本体１４は、支持部１５を介して、支柱１３に沿って移動可能に固定することができるようになっている。 The main body 14 is mainly composed of a member made of a steel material having excellent corrosion resistance such as stainless steel.
The main body 14 is generally configured by a support portion 15 for fixing the main body 14 to the support column 13 and a holder portion 17 for fixing the valve body to the surface 12 a of the glass plate 12. Further, the main body 14 can be fixed to be movable along the support column 13 via the support portion 15.

ホルダ部１７は、円筒状のホルダ１８と、この内部に収納されたコイルスプリング１９と、コイルスプリング１９内に挿通された状態でホルダ１８内に収納され、ネジ無しの六角ボルト状の部材からなる押圧部材２０と、ホルダ１８の一端側（図１〜３においてホルダ１８の上端側）に設けられた擦り合わせ圧力調整ハンドル（以下、「圧力調整ハンドル」と略す。）２１とから概略構成されている。   The holder portion 17 is a cylindrical holder 18, a coil spring 19 housed in the cylindrical holder 18, and is housed in the holder 18 while being inserted into the coil spring 19. The pressing member 20 and a rubbing pressure adjustment handle (hereinafter abbreviated as “pressure adjustment handle”) 21 provided on one end side of the holder 18 (the upper end side of the holder 18 in FIGS. 1 to 3) are schematically configured. Yes.

また、ホルダ１８の一端には、ホルダキャップ２２が嵌合されている。また、ホルダ１８内には、その他端側（図１〜３においてホルダ１８の下端側）に、コイルスプリング１９をホルダ１８内に固定するためのスプリングガイド２３が設けられている。また、ホルダキャップ２２には、その厚み方向に貫通するネジ孔２２ａが穿設されている。このネジ孔２２ａに、圧力調整ハンドル２１と一体化されたネジ部材２４を螺合することにより、ネジ部材２４の先端がホルダ１８内の押圧部材２０の頭部２０ａに当接するようになっている。また、押圧部材２０の先端は、ホルダ１８の他端側に設けられ、上記の球体１６を緩嵌する（緩く嵌合する）ための凹部２９ａが設けられた固定部材２９に当接している。   A holder cap 22 is fitted to one end of the holder 18. In the holder 18, a spring guide 23 for fixing the coil spring 19 in the holder 18 is provided on the other end side (the lower end side of the holder 18 in FIGS. 1 to 3). The holder cap 22 has a screw hole 22a penetrating in the thickness direction. By screwing a screw member 24 integrated with the pressure adjustment handle 21 into the screw hole 22a, the tip of the screw member 24 comes into contact with the head 20a of the pressing member 20 in the holder 18. . Further, the distal end of the pressing member 20 is provided on the other end side of the holder 18 and is in contact with a fixing member 29 provided with a concave portion 29a for loosely fitting the spherical body 16 (loosely fitting).

このように、弁体研磨装置１０において、ホルダ１８、コイルスプリング１９、押圧部材２０、圧力調整ハンドル２１、ホルダキャップ２２、スプリングガイド２３、ネジ部材２４などから構成される押圧手段を用いて、弁体の研磨に際して、圧力調整ハンドル２１のねじ込み度合いを調整することにより、ガラス板１２の表面１２ａに、弁体を、その長手方向に沿う軸を中心として回転可能に固定するための押圧力を調整することができる。   As described above, in the valve body polishing apparatus 10, the pressing means including the holder 18, the coil spring 19, the pressing member 20, the pressure adjusting handle 21, the holder cap 22, the spring guide 23, the screw member 24, and the like is used. When polishing the body, by adjusting the screwing degree of the pressure adjusting handle 21, the pressing force for fixing the valve body to the surface 12a of the glass plate 12 so as to be rotatable about the axis along the longitudinal direction is adjusted. can do.

支持部１５は、支柱１３を挿通するための挿通孔２５ａを有する挿通部材２５と、ホルダ１８の他端に嵌合、接続され、押圧部材２０の先端部を挿通する円筒状の円筒部材２６と、挿通部材２５と円筒部材２６を、それぞれの長手方向（図１〜３において紙面の上下方向）の中心軸が平行となるように接続する接続部材２７と、挿通部材２５の側面に設けられた高さ調整ハンドル２８とから概略構成されている。また、ホルダ１８に円筒部材２６を嵌合することにより、円筒部材２６は、その長手方向の中心軸が、ホルダ１８の長手方向（図１〜３において紙面の上下方向）の中心軸と平行になるように配置されている。さらに、円筒部材２６内には、ホルダ１８の他端側が開口した凹部２９ａが設けられた固定部材２９が嵌合されており、その凹部２９ａの長手方向の中心軸が、ホルダ１８の長手方向の中心軸と平行になっている。また、挿通部材２５には、その側面から挿通孔２５ａまで貫通するネジ孔２５ｂが穿設されている。このネジ孔２５ｂに、高さ調整ハンドル２８と一体化されたネジ部材３０を螺合することにより、ネジ部材３０の先端が挿通孔２５ａ内の支柱１３の側面に当接し、支柱１３に対して、本体１４が固定されるようになっている。   The support portion 15 includes an insertion member 25 having an insertion hole 25 a for inserting the support column 13, a cylindrical cylindrical member 26 that is fitted and connected to the other end of the holder 18, and passes through the distal end portion of the pressing member 20. The insertion member 25 and the cylindrical member 26 are provided on the side surfaces of the insertion member 25 and the connection member 27 that connects the longitudinal axes of the insertion member 25 and the cylindrical member 26 so that the central axes thereof are parallel to each other in the vertical direction of the drawing in FIGS. The height adjustment handle 28 is generally configured. Further, by fitting the cylindrical member 26 to the holder 18, the central axis of the cylindrical member 26 is parallel to the central axis of the longitudinal direction of the holder 18 (the vertical direction of the paper in FIGS. 1 to 3). It is arranged to be. Further, a fixing member 29 provided with a recess 29 a having an opening at the other end of the holder 18 is fitted in the cylindrical member 26, and the longitudinal center axis of the recess 29 a is in the longitudinal direction of the holder 18. It is parallel to the central axis. Further, the insertion member 25 has a screw hole 25b penetrating from the side surface to the insertion hole 25a. By screwing the screw member 30 integrated with the height adjustment handle 28 into the screw hole 25b, the tip of the screw member 30 comes into contact with the side surface of the column 13 in the insertion hole 25a. The main body 14 is fixed.

これにより、挿通部材２５の挿通孔２５ａに、支柱１３を挿通することにより、本体１４を、定盤１１の一方の面１１ａに対して垂直な方向において、任意の位置に固定することができる。   Accordingly, the main body 14 can be fixed at an arbitrary position in the direction perpendicular to the one surface 11 a of the surface plate 11 by inserting the support column 13 through the insertion hole 25 a of the insertion member 25.

球体１６は、ステンレス鋼などの耐食性に優れるとともに、比較的硬度の高い部材からなるものである。
球体１６の大きさは限定されるものではなく、固定部材２９の凹部２９ａの開口径、および、研磨処理の対象となる弁体の大きさ、すなわち、弁体に設けられ、球体１６を緩嵌するための凹部の開口径の大きさに応じて、適宜調整される。 The sphere 16 is made of a member having excellent corrosion resistance such as stainless steel and relatively high hardness.
The size of the spherical body 16 is not limited, and the opening diameter of the concave portion 29a of the fixing member 29 and the size of the valve body to be polished, that is, provided on the valve body, and loosely fit the spherical body 16 It adjusts suitably according to the magnitude | size of the opening diameter of the recessed part for doing.

なお、この弁体研磨装置１０は、弁体の研磨作業に際して、定盤１１、ガラス板１２、支柱１３、本体１４などの構成要素を組み立てて使用される。言い換えれば、この弁体研磨装置１０は、弁体の研磨作業を行わない場合、分解して小型化して保管することができる。したがって、この弁体研磨装置１０は、携帯性にも優れている。   The valve body polishing apparatus 10 is used by assembling components such as the surface plate 11, the glass plate 12, the support column 13, and the main body 14 when the valve body is polished. In other words, the valve body polishing apparatus 10 can be disassembled and reduced in size and stored when the valve body is not polished. Therefore, this valve body polishing apparatus 10 is also excellent in portability.

次に、図１、２および４を参照して、この実施形態の弁体研磨装置の作用について、弁体の研磨を行う場合を例に挙げて説明する。
図４は、この実施形態の弁体研磨装置を用いた弁体の研磨方法を示す概略斜視図である。
「弁体研磨装置の組み立て」
先ず、定盤１１のネジ孔１１ｃに、支柱１３のネジ部１３ａを螺合し、定盤１１の一方の面１１ａに支柱１３を立設する。
次いで、定盤１１の凹部１１ｂにガラス板１２を嵌合し、定盤１１の一方の面１１ａにガラス板１２を固定する。
次いで、支持部１５の挿通部材２５の挿通孔２５ａに支柱１３を挿通した後、高さ調整ハンドル２８を回し、定盤１１の一方の面１１ａと所定の間隔を置いて、支柱１３に本体１４を仮固定し、弁体研磨装置１０の組み立てを完了する。なお、支柱１３に本体１４を仮固定する位置は、定盤１１の一方の面１１ａ上に後述するフィルム研磨材４０、弁体４１、球体１６を順に配置する際に、作業の妨げとならない位置とする。 Next, with reference to FIGS. 1, 2 and 4, the operation of the valve body polishing apparatus of this embodiment will be described by taking the case of polishing the valve body as an example.
FIG. 4 is a schematic perspective view showing a method for polishing a valve body using the valve body polishing apparatus of this embodiment.
"Assembly of valve body polishing equipment"
First, the threaded portion 13 a of the column 13 is screwed into the screw hole 11 c of the surface plate 11, and the column 13 is erected on one surface 11 a of the surface plate 11.
Next, the glass plate 12 is fitted into the recess 11 b of the surface plate 11, and the glass plate 12 is fixed to one surface 11 a of the surface plate 11.
Next, after the support 13 is inserted into the insertion hole 25a of the insertion member 25 of the support portion 15, the height adjustment handle 28 is turned, and the main body 14 is attached to the support 13 at a predetermined distance from one surface 11a of the surface plate 11. Is temporarily fixed, and the assembly of the valve body polishing apparatus 10 is completed. The position at which the main body 14 is temporarily fixed to the column 13 is a position that does not hinder the work when the film abrasive 40, the valve body 41, and the sphere 16 described later are sequentially disposed on the one surface 11a of the surface plate 11. And

「弁体の研磨方法」
次いで、ガラス板１２の表面１２ａ上に、所定の大きさに成形したフィルム研磨材４０を載置する。
フィルム研磨材４０としては、特に限定されず、一般的に精密機器部品などの研磨に用いられるフィルム状の研磨材が用いられるが、例えば、厚みが均一なポリエステルフィルムに、高分子系合成接着剤を用いて、酸化アルミニウム（Ａｌ２Ｏ３）などの超微粒子からなる研磨材を塗布してなるフィルム研磨材が挙げられる。 "Valve polishing method"
Next, a film abrasive 40 formed in a predetermined size is placed on the surface 12 a of the glass plate 12.
The film abrasive 40 is not particularly limited, and a film-like abrasive that is generally used for polishing precision instrument parts and the like is used. For example, a polymer synthetic adhesive is applied to a polyester film having a uniform thickness. And a film abrasive formed by applying an abrasive comprising ultrafine particles such as aluminum oxide (Al 2 O 3 ).

次いで、本体１４の円筒部材２６の直下となるように、ガラス板１２上のフィルム研磨材４０上に、弁体４１を配置する。この時、フィルム研磨材４０に、弁体４１のシール面（研磨処理の対象となる面）が接するように、弁体４１を配置する。
次いで、フィルム研磨材４０上の弁体４１の凹部４１ａに、球体１６の一部を嵌合する。
なお、この弁体研磨装置１０によって研磨処理可能される弁体４１は、ステンレス鋼などの耐食性に優れるとともに、比較的硬度の高い材質からなる円筒状の部品であり、安全弁、減圧弁、逆止弁、調整弁などの弁類の内部部品である。また、この弁体４１は、そのシール面と対向する側の端部に、少なくとも球体１６の一部を緩嵌する（緩く嵌合する）ことができる凹部が設けられている弁体である。なお、この実施形態では、弁体４１は円筒状の部材であるから、その貫通孔４１ａが凹部の役割を果たす。 Next, the valve body 41 is disposed on the film abrasive 40 on the glass plate 12 so as to be directly below the cylindrical member 26 of the main body 14. At this time, the valve body 41 is arranged so that the sealing surface of the valve body 41 (surface to be polished) is in contact with the film abrasive 40.
Next, a part of the sphere 16 is fitted into the recess 41 a of the valve body 41 on the film abrasive 40.
The valve element 41 that can be polished by the valve element polishing apparatus 10 is a cylindrical part made of a material having a relatively high hardness and excellent corrosion resistance such as stainless steel, and is a safety valve, a pressure reducing valve, a check valve. It is an internal part of valves such as valves and regulating valves. Further, the valve body 41 is a valve body provided with a recess capable of loosely fitting (loosely fitting) at least a part of the spherical body 16 at an end portion on the side facing the seal surface. In this embodiment, since the valve body 41 is a cylindrical member, the through hole 41a serves as a recess.

次いで、高さ調整ハンドル２８を回して本体１４の固定を解除し、本体１４を下げて、円筒部材２６内の固定部材２９の凹部２９ａに、弁体４１上の球体１６の一部を嵌合する。この時、弁体４１の中心軸と、固定部材２９の中心軸とが一致していなければ、弁体４１の位置を変えるなどして一致させる。
次いで、高さ調整ハンドル２８を回して、支柱１３に本体１４を固定する。この時、弁体４１には、本体１４の重さのみが加えられるようにすれば十分であり、本体１４を押圧するなどして、弁体４１に余分な力を加える必要はない。 Next, the height adjustment handle 28 is turned to release the fixing of the main body 14, the main body 14 is lowered, and a part of the sphere 16 on the valve body 41 is fitted into the concave portion 29 a of the fixing member 29 in the cylindrical member 26. To do. At this time, if the central axis of the valve body 41 and the central axis of the fixing member 29 do not coincide with each other, they are matched by changing the position of the valve body 41 or the like.
Next, the height adjustment handle 28 is turned to fix the main body 14 to the support column 13. At this time, it is sufficient that only the weight of the main body 14 is applied to the valve body 41, and it is not necessary to apply an extra force to the valve body 41 by pressing the main body 14.

次いで、圧力調整ハンドル２１を回し、球体１６を介して本体１４により弁体４１を押圧し、弁体４１のシール面をフィルム研磨材４０に押し当てる。この時、本体１４による弁体４１に対する押圧力を大きくし過ぎないようにすることが好ましく、具体的には、本体１４による押圧力を、弁体４１を抑えたまま、フィルム研磨材４０上にて、弁体４１をその中心軸周りに回転することができる程度の力とする。   Next, the pressure adjustment handle 21 is turned, the valve body 41 is pressed by the main body 14 via the sphere 16, and the sealing surface of the valve body 41 is pressed against the film abrasive 40. At this time, it is preferable that the pressing force against the valve body 41 by the main body 14 is not excessively increased. Specifically, the pressing force by the main body 14 is applied to the film abrasive 40 while the valve body 41 is suppressed. Thus, the valve body 41 has a force that can rotate around the central axis.

次いで、弁体４１を把持し、フィルム研磨材４０上にて、弁体４１をその中心軸周りに回転させることにより、弁体４１のシール面を研磨する。
なお、弁体４１のシール面を所定の粗さ（平滑度）とするためには、粒度が粗いフィルム研磨材４０による研磨から開始して、次第に、粒度が細かいフィルム研磨材４０による研磨へと移行する。 Next, the valve body 41 is gripped, and the valve body 41 is rotated around its central axis on the film abrasive 40 to polish the sealing surface of the valve body 41.
In addition, in order to make the sealing surface of the valve body 41 have a predetermined roughness (smoothness), the polishing is started with the film abrasive 40 having a coarse particle size, and gradually is polished with the film abrasive 40 having a fine particle size. Transition.

以上説明したように、この実施形態の弁体研磨装置１０によれば、定盤１１の一方の面１１ａ上にフィルム研磨材４０を載置し、そのフィルム研磨材４０上に弁体４１を配置し、その弁体４１の凹部４１ａに嵌合した球体１６を介して、本体１４により弁体４１に対して均等に押圧力を加えることができる。なぜならば、球体１６を介して、本体１４と弁体４１を接続することにより、本体１４の中心軸と、弁体４１の中心軸とが多少ずれていても、本体１４により弁体４１に対して均等に押圧力を加えることができるからである。したがって、この状態で弁体４１を手で回転させても、そのシール面の研磨作業にばらつきが生じない。
したがって、この弁体研磨装置１０を用いた弁体４１の研磨作業によれば、作業者の技量や熟練を必要とすることがなく、本体１４の中心軸と弁体４１の中心軸の位置合わせなどの非常に手間がかかる作業を省略することができるため作業効率が向上するとともに、常に弁体４１のシール面をほぼ均一な平滑面に仕上げることができる。 As described above, according to the valve body polishing apparatus 10 of this embodiment, the film abrasive 40 is placed on the one surface 11 a of the surface plate 11, and the valve body 41 is disposed on the film abrasive 40. Then, the pressing force can be applied evenly to the valve body 41 by the main body 14 through the spherical body 16 fitted in the concave portion 41 a of the valve body 41. This is because by connecting the main body 14 and the valve body 41 via the spherical body 16, even if the central axis of the main body 14 and the central axis of the valve body 41 are slightly deviated from each other, This is because the pressing force can be applied evenly. Therefore, even if the valve body 41 is manually rotated in this state, there is no variation in the polishing operation of the sealing surface.
Therefore, according to the polishing work of the valve body 41 using the valve body polishing apparatus 10, the operator's skill and skill are not required, and the center axis of the main body 14 and the center axis of the valve body 41 are aligned. Therefore, the work efficiency is improved and the sealing surface of the valve body 41 can always be finished to a substantially uniform smooth surface.

また、この弁体研磨装置１０では、ガラス板１２は、本体１４からの押圧力により破損するおそれや、弁体４１の研磨作業による摩耗により平坦度が損なわれるおそれがあるが、そのような不具合が生じた場合には、定盤１１からガラス板１２を脱離して、新しいものと交換することができる。したがって、ガラス板１２の表面１２ａの平坦度を保つことができる。   Further, in the valve body polishing apparatus 10, the glass plate 12 may be damaged by the pressing force from the main body 14, or the flatness may be impaired due to wear due to the polishing operation of the valve body 41. When this occurs, the glass plate 12 can be detached from the surface plate 11 and replaced with a new one. Therefore, the flatness of the surface 12a of the glass plate 12 can be maintained.

なお、この実施形態では、フィルム研磨材４０を用いて弁体４１を研磨する場合を例示したが、本発明はこれに限定されない。本発明にあっては、フィルム研磨材の替わりに、超微粒子からなる研磨材を含むペースト状などの研磨剤を用いることもできる。   In this embodiment, the case where the valve element 41 is polished using the film abrasive 40 is illustrated, but the present invention is not limited to this. In the present invention, an abrasive such as a paste containing an abrasive made of ultrafine particles can be used instead of the film abrasive.

本発明の弁体研磨装置は、球体を嵌合するために、そのシール面と対向する側の端部に凹部が設けられた弁体であれば、その他の形状に依ることなく、シール面を研磨することができる。   If the valve body polishing apparatus of the present invention is a valve body provided with a recess at the end on the side facing the seal surface in order to fit the sphere, the seal surface is not dependent on other shapes. Can be polished.

本発明の弁体研磨装置の一実施形態を示す概略斜視図である。It is a schematic perspective view which shows one Embodiment of the valve body grinding | polishing apparatus of this invention. 本発明の弁体研磨装置の一実施形態を示し、（ａ）は概略平面図、（ｂ）は一部断面の概略正面図である。1 shows an embodiment of a valve body polishing apparatus of the present invention, (a) is a schematic plan view, and (b) is a schematic front view of a partial cross section. 本発明の弁体研磨装置の一実施形態を構成する本体の概略断面図である。It is a schematic sectional drawing of the main body which comprises one Embodiment of the valve body grinding | polishing apparatus of this invention. 本発明の一実施形態の弁体研磨装置を用いた弁体の研磨方法を示す概略斜視図である。It is a schematic perspective view which shows the grinding | polishing method of the valve body using the valve body grinding | polishing apparatus of one Embodiment of this invention.

符号の説明Explanation of symbols

１０・・・弁体研磨装置、１１・・・定盤、１２・・・ガラス板、１３・・・支柱、１４・・・本体、１５・・・支持部、１６・・・球体、１７・・・ホルダ部、１８・・・ホルダ、１９・・・コイルスプリング、２０・・・押圧部材、２１・・・擦り合わせ圧力調整ハンドル、２２・・・ホルダキャップ、２３・・・スプリングガイド、２４・・・ネジ部材、２５・・・挿通部材、２６・・・円筒部材、２７・・・接続部材、２８・・・高さ調整ハンドル、２９・・・固定部材、３０・・・ネジ部材、４０・・・フィルム研磨材、４１・・・弁体。 DESCRIPTION OF SYMBOLS 10 ... Valve body grinding | polishing apparatus, 11 ... Surface plate, 12 ... Glass plate, 13 ... Support | pillar, 14 ... Main body, 15 ... Support part, 16 ... Sphere, 17. .. Holder part, 18 ... Holder, 19 ... Coil spring, 20 ... Pressing member, 21 ... Rub pressure adjusting handle, 22 ... Holder cap, 23 ... Spring guide, 24 ... Screw member, 25 ... Insertion member, 26 ... Cylindrical member, 27 ... Connection member, 28 ... Height adjustment handle, 29 ... Fixing member, 30 ... Screw member, 40 ... film abrasive, 41 ... valve body.

Claims (1)

弁類の弁体のシール面を研磨するための弁体研磨装置であって、
定盤と、該定盤の一方の面に立設された支柱と、該支柱に支持部を介して固定され、押圧手段を備えた本体と、該本体と前記定盤の一方の面に配された弁体との間に介在され、前記本体からの押圧力を前記弁体に加えるための球体とを備えてなることを特徴とする弁体研磨装置。

A valve body polishing apparatus for polishing a sealing surface of a valve body of a valve,
A surface plate, a column erected on one surface of the surface plate, a main body fixed to the column via a support and provided with pressing means, and a main body and one surface of the surface plate. And a spherical body for applying a pressing force from the main body to the valve body.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103639871A (en) * 2013-12-11 2014-03-19 中国神华能源股份有限公司 Manual grinding device
JP2019136816A (en) * 2018-02-09 2019-08-22 三菱重工業株式会社 Flange face repairing method and repair jig
CN112171437A (en) * 2020-10-23 2021-01-05 江苏神通阀门股份有限公司 Helium gas isolation valve clack sealing surface grinding method
CN112453971A (en) * 2020-11-26 2021-03-09 四川航天长征装备制造有限公司 Valve body turning clamp
CN116900866A (en) * 2023-09-13 2023-10-20 南京自控仪表有限公司 Grinding device and method for valve body machining

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JPH0386453A (en) * 1989-08-24 1991-04-11 Fuji Valve Co Ltd Grinding axial end of workpiece
JPH05256606A (en) * 1992-03-13 1993-10-05 Hitachi Ltd Working method and working device for injector valve
JP2005177922A (en) * 2003-12-19 2005-07-07 Kitz Corp Method and device for polishing valve seat of on-off valve

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Publication number Priority date Publication date Assignee Title
JPS6171958A (en) * 1984-09-13 1986-04-12 Toshiba Corp Grinding device
JPS63147261U (en) * 1987-03-18 1988-09-28
JPH0386453A (en) * 1989-08-24 1991-04-11 Fuji Valve Co Ltd Grinding axial end of workpiece
JPH05256606A (en) * 1992-03-13 1993-10-05 Hitachi Ltd Working method and working device for injector valve
JP2005177922A (en) * 2003-12-19 2005-07-07 Kitz Corp Method and device for polishing valve seat of on-off valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103639871A (en) * 2013-12-11 2014-03-19 中国神华能源股份有限公司 Manual grinding device
CN103639871B (en) * 2013-12-11 2016-07-06 中国神华能源股份有限公司 Hand-ground device
JP2019136816A (en) * 2018-02-09 2019-08-22 三菱重工業株式会社 Flange face repairing method and repair jig
JP7066437B2 (en) 2018-02-09 2022-05-13 三菱重工業株式会社 Flange surface repair method and repair jig
CN112171437A (en) * 2020-10-23 2021-01-05 江苏神通阀门股份有限公司 Helium gas isolation valve clack sealing surface grinding method
CN112453971A (en) * 2020-11-26 2021-03-09 四川航天长征装备制造有限公司 Valve body turning clamp
CN116900866A (en) * 2023-09-13 2023-10-20 南京自控仪表有限公司 Grinding device and method for valve body machining
CN116900866B (en) * 2023-09-13 2023-11-21 南京自控仪表有限公司 Grinding device and method for valve body machining

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