JP2000288931A - Grinding device - Google Patents

Grinding device

Info

Publication number
JP2000288931A
JP2000288931A JP11102201A JP10220199A JP2000288931A JP 2000288931 A JP2000288931 A JP 2000288931A JP 11102201 A JP11102201 A JP 11102201A JP 10220199 A JP10220199 A JP 10220199A JP 2000288931 A JP2000288931 A JP 2000288931A
Authority
JP
Japan
Prior art keywords
grinding
flanges
grinding fluid
groove
grinding wheel
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.)
Granted
Application number
JP11102201A
Other languages
Japanese (ja)
Other versions
JP4283372B2 (en
Inventor
Akio Fukuzawa
明男 福沢
Tomohiko Nakanishi
友彦 中西
Yoshiyasu Ando
芳康 安藤
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.)
Denso Corp
Soken Inc
Original Assignee
Denso Corp
Nippon Soken Inc
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.)
Filing date
Publication date
Application filed by Denso Corp, Nippon Soken Inc filed Critical Denso Corp
Priority to JP10220199A priority Critical patent/JP4283372B2/en
Publication of JP2000288931A publication Critical patent/JP2000288931A/en
Application granted granted Critical
Publication of JP4283372B2 publication Critical patent/JP4283372B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a grinding device capable of grinding a small groove below 0.5 millimeter by supplying processing liquid to a portion to be machined without causing grinding wheel breaking, and securing the rigidity of a grinding wheel shaft. SOLUTION: A pair of flanges 3 and 4 are fixed to the tip outer periphery of a shaft 2 integrated with a grinding wheel shaft, and a grinding wheel 5 is held between the flanges 3 and 4. A plurality of groove portions are radially provided to supply grinding liquid in both supporting surfaces 31 and 41 of the flanges 3 and 4, the holding force of the grinding wheel is thereby increased, a plurality of axially extended grinding liquid supply grooves 24 are formed in the tip outer periphery of the shaft 2, and inserted into the plurality of groove portions, and thus a reduction in the rigidity of the grinding wheel shaft is prevented.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、押出成形用金型等
の細溝を研削加工する際に使用される研削装置に関し、
詳しくは、砥石に研削液を供給する研削液供給機構を有
する研削装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding apparatus used for grinding a narrow groove of a die for extrusion molding, and the like.
More specifically, the present invention relates to a grinding device having a grinding fluid supply mechanism for supplying a grinding fluid to a grindstone.

【0002】[0002]

【従来の技術】研削砥石によって押出成形用金型等の溝
加工を行う場合には、通常、砥石の冷却や加工屑を排除
する目的で、砥石と加工物が接する加工部位に研削液を
供給しながら研削を行っている。図6は研削液を供給す
る一般的な方法を示すもので、砥石91を支持するフラ
ンジ93、94の外側に研削液供給ノズル92を開口
し、該ノズル92より砥石91の両側面に向けて研削液
を噴出させて、加工部位に吹き付けるようにしている。
2. Description of the Related Art When a groove is formed in an extrusion molding die or the like by a grinding wheel, a grinding fluid is usually supplied to a processing portion where the grinding wheel is in contact with a workpiece for the purpose of cooling the wheel and eliminating processing waste. While grinding. FIG. 6 shows a general method of supplying a grinding fluid, in which a grinding fluid supply nozzle 92 is opened outside flanges 93 and 94 supporting a grinding stone 91, and the nozzle 92 is directed toward both side surfaces of the grinding stone 91. The grinding fluid is jetted out and sprayed on the processing site.

【0003】上記従来の方法は、砥石91が厚く十分強
度がある場合には有効であったが、0.5mm程度以下
の細溝を加工する場合には、砥石91も0.5mm程度
以下に薄くなるために強度が低下し、高圧で研削液を吹
き付けると砥石91が撓んで加工が困難になる。これを
回避するには、研削液の供給圧力を下げる必要がある
が、加工中の砥石軸は約6000rpmで回転している
ため、砥石91の側面に図6に示すような空気流が発生
し、これに阻まれて、研削液が砥石91表面に達しにく
くなる問題があった。
[0003] The above-mentioned conventional method is effective when the grindstone 91 is thick and has sufficient strength. However, when machining a narrow groove of about 0.5 mm or less, the grindstone 91 is also reduced to about 0.5 mm or less. When the grinding fluid is sprayed at a high pressure, the grindstone 91 is bent to make processing difficult. In order to avoid this, it is necessary to reduce the supply pressure of the grinding fluid. However, since the grinding wheel shaft is rotating at about 6000 rpm during processing, an air flow as shown in FIG. This hinders the problem that the grinding fluid hardly reaches the surface of the grindstone 91.

【0004】一方、実開平3−109765号公報に
は、図7に示すように、砥石91を挟持するフランジ9
3、94と砥石91とで液溜95が形成されるよう、砥
石保持面93a、94aに、リング状の凹部93b、9
4bを形成し、さらに凹部93b、94bの内周側に液
溜95に研削液を供給するための連通穴96を、外周側
に液溜95より外方に研削液を吐出するための複数の溝
部97を設けた砥石フランジが提案されている。この砥
石フランジでは、砥石軸98内部の供給路98aから連
通穴96、液溜95、溝部97を経て、砥石1側面に直
接研削液が供給されるために、外部に研削液供給ノズル
を有する上記従来の方法のような空気流の問題は生じな
い。
On the other hand, Japanese Utility Model Laid-Open No. 3-109765 discloses a flange 9 for holding a grindstone 91 as shown in FIG.
The ring-shaped recesses 93b, 9 are formed in the grindstone holding surfaces 93a, 94a so that a liquid reservoir 95 is formed by the grindstones 91 and 3, 94.
4b, a communication hole 96 for supplying the grinding fluid to the liquid reservoir 95 is provided on the inner peripheral side of the concave portions 93b and 94b, and a plurality of holes for discharging the grinding liquid outward from the liquid reservoir 95 are provided on the outer peripheral side. A grindstone flange provided with a groove 97 has been proposed. In this grinding wheel flange, the grinding fluid is directly supplied to the side surface of the grinding wheel 1 from the supply path 98a inside the grinding wheel shaft 98 through the communication hole 96, the liquid reservoir 95, and the groove 97, so that the grinding fluid supply nozzle is provided outside. There is no airflow problem as in conventional methods.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、上記砥
石フランジは、液溜95を形成するために砥石保持面9
3a、94aの両面にリング状の凹部93b、94bを
形成しており、この部分において砥石91が無拘束とな
っている(図中に×印で示す部分91a)。このように
広い範囲で砥石91の無拘束部分91aが存在する砥石
フランジを、0.5mm以下、例えば、数10μm程度
の細溝加工に適用した場合、砥石91を十分支持するこ
とができず、研削液の圧力で砥石91がバラバラに割れ
てしまうおそれがある。また、割れた砥石91が研削液
吐出用の溝部97を塞ぎ、洗浄力の低下を招くばかり
か、砥石91の破片が加工部位へ運ばれ、砥石割れの原
因になる。
However, the above-mentioned grinding wheel flange has a grinding wheel holding surface 9 for forming a liquid reservoir 95.
Ring-shaped concave portions 93b and 94b are formed on both surfaces of 3a and 94a, and the grindstone 91 is unrestricted in these portions (portion 91a indicated by a mark x in the figure). If the grindstone flange in which the unconstrained portion 91a of the grindstone 91 is present in such a wide range is applied to a narrow groove processing of 0.5 mm or less, for example, about several tens of μm, the grindstone 91 cannot be sufficiently supported, There is a possibility that the grindstone 91 may be broken apart by the pressure of the grinding fluid. Further, the broken whetstone 91 closes the groove 97 for discharging the grinding fluid, which causes not only a decrease in the cleaning power, but also a fragment of the whetstone 91 to be carried to the processing portion, which causes a whetstone crack.

【0006】また、図7の構成では、先端がテーパ状の
砥石軸98を使用し、該テーパ部内に液溜95へ研削液
を供給するための供給路98aを形成しているが、砥石
軸98に直接穴加工が施されているため、機械本体への
穴加工による軸精度不良や剛性力低下等の問題が生じる
おそれがある。
In the configuration shown in FIG. 7, a grinding wheel shaft 98 having a tapered tip is used, and a supply passage 98a for supplying a grinding fluid to the liquid reservoir 95 is formed in the tapered portion. Since the holes 98 are directly drilled, there is a possibility that problems such as poor shaft accuracy and reduced rigidity due to drilling holes in the machine body may occur.

【0007】そこで、本発明は、細溝研削用の薄い研削
砥石を使用した場合でも砥石割れを生じることがなく、
加工部位へ確実に研削液を供給して、研削砥石の目詰ま
りや研削焼けを防止し、0.5ミリ程度以下の細溝研削
を可能にすること、また、砥石軸の軸精度不良や剛性力
低下を防止することの可能な研削装置の実現を目的とす
るものである。
Therefore, the present invention does not cause a grinding wheel crack even when a thin grinding wheel for fine groove grinding is used.
The grinding fluid is reliably supplied to the machining area to prevent clogging and burning of the grinding wheel, to enable the grinding of fine grooves of about 0.5 mm or less. An object of the present invention is to realize a grinding device capable of preventing a reduction in force.

【0008】[0008]

【課題を解決するための手段】請求項1の構成における
研削装置は、回転駆動される軸部材の先端部外周に一対
のフランジを装着して、該一対のフランジ間に研削砥石
を挟持し、上記一対のフランジに研削液供給用の通路を
設けてなる。上記一対のフランジの、上記研削砥石を支
持する両支持面には、それぞれ上記通路となる複数の溝
部が放射状に設けてあり、上記軸部材の先端部外周に複
数の軸方向に延びる研削液供給溝を形成して、上記両支
持面の上記複数の溝部に連通させている。
According to a first aspect of the present invention, there is provided a grinding apparatus having a pair of flanges mounted on an outer periphery of a tip end portion of a shaft member which is driven to rotate, and holding a grinding wheel between the pair of flanges. A passage for supplying the grinding fluid is provided in the pair of flanges. A plurality of grooves serving as the passages are radially provided on both support surfaces of the pair of flanges for supporting the grinding wheel, and a plurality of grinding fluid supplies extending in a plurality of axial directions are provided on the outer periphery of the tip of the shaft member. A groove is formed and communicates with the plurality of grooves on both support surfaces.

【0009】上記構成によれば、研削液供給用の複数の
溝部を放射状に設けた上記一対のフランジの両支持面間
に上記研削砥石を支持しており、従来のように広い範囲
で砥石の未拘束部分を形成せずに、上記フランジ内に研
削液供給用の通路を設けることができる。よって、砥石
の割れを防止しつつ加工部位に確実に研削液を供給し
て、0.5ミリ程度以下の細溝研削を効率よく行い、加
工品質、加工精度および加工速度を向上させることがで
きる。また、上記複数の溝部には、上記軸部材の外周に
軸方向に設けた複数の研削液供給溝から研削液を供給す
るようにしたので、砥石軸内部に穴加工等を施す必要が
なく、軸精度や剛性力の低下を防止することができる。
According to the above configuration, the grinding wheel is supported between the two supporting surfaces of the pair of flanges provided with a plurality of grooves for supplying the grinding fluid in a radial manner. A passage for supplying the grinding fluid can be provided in the flange without forming an unconstrained portion. Therefore, it is possible to reliably supply a grinding liquid to a processing portion while preventing cracking of a grindstone, efficiently perform fine groove grinding of about 0.5 mm or less, and improve processing quality, processing accuracy, and processing speed. . In addition, since the plurality of grooves are configured to supply the grinding fluid from the plurality of grinding fluid supply grooves provided in the axial direction on the outer periphery of the shaft member, it is not necessary to perform a hole machining or the like inside the grinding wheel shaft, A decrease in shaft accuracy and rigidity can be prevented.

【0010】請求項2の構成では、上記軸部材の先端部
外周に、上記複数の研削液供給溝の流れ方向の先端部を
互いに連通する周方向の溝を形成する。この周方向の溝
の幅を適切に調整することで、上記研削液供給溝から上
記一対のフランジの両支持面に供給される研削液の通液
バランスを良好に保って、両支持面間に保持される上記
研削砥石の両側面に均等に研削液を供給することができ
る。
According to the second aspect of the present invention, a circumferential groove is formed on the outer periphery of the front end portion of the shaft member so that the front end portions in the flow direction of the plurality of grinding fluid supply grooves communicate with each other. By appropriately adjusting the width of the groove in the circumferential direction, a good balance of the flow of the grinding fluid supplied from the grinding fluid supply groove to the two support surfaces of the pair of flanges is maintained, and between the two support surfaces. The grinding fluid can be supplied evenly to both sides of the held grinding wheel.

【0011】請求項3の構成では、上記一対のフランジ
の上記両支持面に、上記複数の溝部を互いに連通する環
状溝を形成する。これにより、上記複数の溝部を流れる
研削液の圧力を一定として、上記複数の溝部の端部から
研削液が均等に噴出されるようにすることができる。
According to a third aspect of the present invention, an annular groove connecting the plurality of groove portions to each other is formed on the two support surfaces of the pair of flanges. Thereby, the pressure of the grinding fluid flowing through the plurality of grooves can be kept constant, so that the grinding fluid can be uniformly jetted from the ends of the plurality of grooves.

【0012】請求項4の構成では、上記フランジから突
出する上記軸部材の先端に、内部を上記研削液供給溝に
連通する研削液供給路とする筒状部材を装着する。この
ようにして、上記研削液供給路から上記軸部材外周の上
記研削液供給溝に研削液を容易に供給することができ
る。
According to a fourth aspect of the present invention, a cylindrical member is provided at the tip of the shaft member protruding from the flange to serve as a grinding fluid supply passage having an interior communicating with the grinding fluid supply groove. Thus, the grinding fluid can be easily supplied from the grinding fluid supply passage to the grinding fluid supply groove on the outer periphery of the shaft member.

【0013】[0013]

【発明の実施の形態】以下、本発明の一実施の形態を図
面に基づいて詳細に説明する。図1(a)は本発明の研
削装置の全体構成図、図1(b)はその分解図である。
図1(a)において、図略の駆動源に連結される砥石軸
1には軸部材たるシャフト2が同軸状に設けられて、一
体に回転駆動されるようになしてある。該シャフト2の
先端部(図の左端部)外周には、一対のフランジたるフ
ロントフランジ3、リヤフランジ4が装着してあり、こ
れらフランジ3、4間に研削砥石5が挟持してある。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1A is an overall configuration diagram of a grinding device according to the present invention, and FIG. 1B is an exploded view thereof.
In FIG. 1A, a shaft 2 serving as a shaft member is coaxially provided on a grinding wheel shaft 1 connected to a drive source (not shown) so as to be integrally rotated. A pair of front flanges 3 and rear flanges 4 are mounted on the outer periphery of the tip (left end in the figure) of the shaft 2, and a grinding wheel 5 is sandwiched between the flanges 3 and 4.

【0014】シャフト2の基端(図の右端)に設けたフ
ランジ21と、リヤフランジ4の間には、筒状のスペー
サ部材22が介設され、フロントフランジ3の左方に突
出するシャフト2の先端(図の左端)23には、内部を
研削液の供給路63とする筒状部材6が装着してある。
筒状部材6は、図1(b)のように、内周にねじ部61
aを有する筒状の締結部材61と、その左端側に配設さ
れ右端部にねじ部62aを有する筒状のベアリングホル
ダ62とからなる。一方、シャフト2の先端23外周に
は、これらに対応するねじ部23a、23bが形成して
あり、シャフト2にスペーサ部材22を介してリヤフラ
ンジ4、フロントフランジ3を順に嵌着し、フロントフ
ランジ3より突出する上記先端23に、上記締結部材6
1とベアリングホルダ62を順に螺挿することで締付け
固定されるようになしてある。
A cylindrical spacer member 22 is interposed between a flange 21 provided at the base end (the right end in the figure) of the shaft 2 and the rear flange 4, and projects to the left of the front flange 3. A cylindrical member 6 whose interior is a supply path 63 for the grinding fluid is mounted at the tip (left end in the figure) 23 of the.
As shown in FIG. 1B, the cylindrical member 6 has a threaded portion 61 on its inner periphery.
a, and a cylindrical bearing holder 62 disposed on the left end side and having a threaded portion 62a on the right end. On the other hand, screw portions 23a and 23b corresponding to these are formed on the outer periphery of the distal end 23 of the shaft 2, and the rear flange 4 and the front flange 3 are fitted to the shaft 2 via the spacer member 22 in this order. 3, the fastening member 6
1 and the bearing holder 62 are screwed in order to be fixedly fastened.

【0015】研削砥石5を保持するフロントフランジ
3、リヤフランジ4の両支持面31、41には、図2
(a)〜(c)に示すように、内周縁から外周縁に至る
多数の溝部32、42が、ほぼ等間隔で放射状に設けら
れて、研削砥石5の側面に研削液を供給する通路を形成
している。これら溝部32、42の外周端部32a、4
2aは溝幅をやや小さく形成してあって、絞り効果によ
り研削液が高圧で噴出するようにしてある。また、各支
持面31、41には、複数の環状溝33、43が設けら
れており、多数の溝部32、42間をそれぞれ連通して
いる。この環状溝33、43は、溝部32、42を流れ
る研削液の圧力を一定にするためのもので、溝部32、
42と同幅に形成される。ここでは、各支持面31、4
1に2つの溝部32、42を形成しているが、必ずしも
これに限るものではなく、研削液の圧力を一定にするこ
とが可能であれば、単数としてもよい。研削液として
は、通常、水溶性の液が使用される。
FIG. 2 shows two supporting surfaces 31 and 41 of the front flange 3 and the rear flange 4 for holding the grinding wheel 5.
As shown in (a) to (c), a large number of grooves 32 and 42 from the inner peripheral edge to the outer peripheral edge are provided radially at substantially equal intervals to provide a passage for supplying a grinding fluid to the side surface of the grinding wheel 5. Has formed. Outer peripheral ends 32a, 4a of these grooves 32, 42
2a is formed with a slightly smaller groove width so that the grinding fluid is jetted at a high pressure due to the drawing effect. In addition, a plurality of annular grooves 33, 43 are provided on each of the support surfaces 31, 41, and each of the plurality of groove portions 32, 42 communicates with each other. The annular grooves 33 and 43 are used to keep the pressure of the grinding fluid flowing through the grooves 32 and 42 constant.
42 and the same width. Here, each support surface 31, 4
Although the two grooves 32 and 42 are formed in one, it is not necessarily limited to this, and a single groove may be used as long as the pressure of the grinding fluid can be kept constant. Usually, a water-soluble liquid is used as the grinding liquid.

【0016】なお、一般に知られるように、研削砥石5
を、フランジ3、4の支持面31、41の全体で保持固
定しようとすると、フランジ3、4の先端が開いてしま
い、砥石保持力が低下してしまう。このため、通常、砥
石支持面31、41の中央部を外周部に対し僅かに凹陥
させる逃がし加工を行うが、本発明のような細溝研削で
は研削砥石5が薄く(0.5mm程度以下)、強度が低
いため、逃がし量が多いとフランジ3、4間を通る研削
液の圧力で、逃がし部の砥石が割れてしまう。これを避
けるための適当な逃がし量として、本実施の形態では、
各支持面31、41において、外周側の環状溝33、4
3より内側の表面を0.02mm程度、逃がし加工する
ことによってこれを防止している。
As generally known, the grinding wheel 5
If the support surfaces 31 and 41 of the flanges 3 and 4 are held and fixed, the tips of the flanges 3 and 4 are opened, and the grinding wheel holding force is reduced. For this reason, a relief process for slightly recessing the central portion of the grindstone supporting surfaces 31 and 41 with respect to the outer peripheral portion is usually performed. However, in the narrow groove grinding as in the present invention, the grinding wheel 5 is thin (about 0.5 mm or less). If the relief amount is large because the strength is low, the grinding stone at the relief portion will be broken by the pressure of the grinding fluid passing between the flanges 3 and 4. In this embodiment, as an appropriate escape amount to avoid this,
In each of the support surfaces 31 and 41, the outer peripheral annular grooves 33 and 4
This is prevented by relieving about 0.02 mm of the surface inside 3.

【0017】図3(a)、(b)に示すように、シャフ
ト2の先端部(左端部)外周には、軸方向に延びる多数
の研削液供給溝24が形成してあり、その外周に装着さ
れるフランジ3、4の多数の溝部32、42に連通し
て、これら溝部32、42に研削液を供給するようにな
してある。各研削液供給溝24は、シャフト2の回転力
を受ける研削液の流れ方向と一致するように、軸方向に
対しやや斜めに形成されている。これにより、シャフト
2の回転に伴い、多数の研削液供給溝24のそれぞれに
スムーズに研削液が吸入され、研削液の供給が良好にな
される。
As shown in FIGS. 3 (a) and 3 (b), a number of grinding fluid supply grooves 24 extending in the axial direction are formed on the outer periphery of the tip (left end) of the shaft 2, and the outer periphery thereof is formed. The plurality of grooves 32 and 42 of the flanges 3 and 4 to be mounted communicate with the grooves 32 and 42 so that the grinding liquid is supplied to the grooves 32 and 42. Each grinding fluid supply groove 24 is formed slightly oblique to the axial direction so as to coincide with the flow direction of the grinding fluid receiving the rotational force of the shaft 2. Thereby, the grinding fluid is smoothly sucked into each of the large number of grinding fluid supply grooves 24 with the rotation of the shaft 2, and the supply of the grinding fluid is favorably performed.

【0018】また、研削液供給溝24の流れ方向の端部
において、シャフト2の外周に周方向の溝25を形成し
て、該溝25により各研削液供給溝24を互いに連通す
るようにしている。この溝25は、フロントフランジ3
とリヤフランジ4の通液バランスを保つためのものであ
り、この溝25がないと約2:1の割合でフロントフラ
ンジ3側の通液量が多くなるが、溝25を設けることに
よってリヤフランジ4側の通液量を増すことができ、研
削液供給溝24と溝25の幅を調整することによって通
液バランスを良好に保つことができる。
A circumferential groove 25 is formed on the outer periphery of the shaft 2 at the end of the grinding fluid supply groove 24 in the flow direction, so that the grinding fluid supply grooves 24 communicate with each other. I have. This groove 25 is formed in the front flange 3
In order to maintain the liquid flow balance between the front flange 3 and the rear flange 4, the flow rate on the front flange 3 side increases at a ratio of about 2: 1 without the groove 25. It is possible to increase the amount of fluid flow on the fourth side, and to maintain a good balance of fluid flow by adjusting the width of the grinding fluid supply groove 24 and the groove 25.

【0019】図1(b)において、筒状部材6の締結部
材61は、右端面に環状溝61bを有するとともに、左
右端面間を連通する貫通穴61cを有している。また、
ベアリングホルダ62は内部の液溜まり62dと右端面
の環状溝62bを連通する貫通穴62cを有しており、
液溜まり62dと、ベアリング64が嵌着される凹部6
2eとは貫通穴62fで連通している。かくして、これ
ら締結部材61およびベアリングホルダ62を、シャフ
ト2の先端23にねじ固定すると、貫通穴62f、液溜
まり62d、貫通穴62c、環状溝62b、貫通穴61
c、環状溝61bにて、図1(a)に示す研削液供給路
63が形成される。ベアリング64に嵌着されるホース
ジョイント65には、研削液供給ポンプ7に連通するホ
ース71が接続してある。
In FIG. 1B, the fastening member 61 of the tubular member 6 has an annular groove 61b on the right end surface and a through hole 61c communicating between the left and right end surfaces. Also,
The bearing holder 62 has a through hole 62c communicating the internal liquid reservoir 62d and the annular groove 62b on the right end face,
The liquid reservoir 62d and the recess 6 into which the bearing 64 is fitted.
2e communicates with the through-hole 62f. Thus, when the fastening member 61 and the bearing holder 62 are screw-fixed to the distal end 23 of the shaft 2, the through hole 62f, the liquid reservoir 62d, the through hole 62c, the annular groove 62b, the through hole 61
c, the grinding fluid supply path 63 shown in FIG. 1A is formed by the annular groove 61b. A hose 71 communicating with the grinding fluid supply pump 7 is connected to a hose joint 65 fitted to the bearing 64.

【0020】この時、好ましくは、図5(a)に示すよ
うに、研削液供給ポンプ7に接続されるホース71の途
中に、研削液濾過用のフィルター8を配設するとよい。
研削液濾過用のフィルター8としては、図5(b)に示
すように、カートリッジ式の容器81内にフィルター8
2を内蔵する公知のワインドカートリッジフィルターを
用いることができ、研削液を循環使用する場合に、タン
ク内の研削液に混入する研削加工時の切り粉、砥粒をフ
ィルター8で濾過した後に、研削装置に供給することが
できる。
At this time, as shown in FIG. 5 (a), it is preferable to dispose a filter 8 for filtering the grinding fluid in the middle of a hose 71 connected to the grinding fluid supply pump 7.
As shown in FIG. 5B, the filter 8 for filtering the grinding fluid is provided in a cartridge type container 81.
A known wind cartridge filter having a built-in 2 can be used. When the grinding fluid is used in a circulating manner, after the cutting powder and abrasive grains mixed in the grinding fluid in the tank during the grinding process are filtered through the filter 8, the grinding is performed. Can be supplied to the device.

【0021】上記構成の研削装置において、ポンプ7か
ら供給される研削液は、研削液供給路63を経て、シャ
フト2外周の研削液供給溝24に供給される。ここで、
図1(b)のように、フロントフランジ3の左端面に
は、締結部材61の環状溝61bに対向する環状溝3a
が形成されており、研削液供給路63を通過した研削液
は、この環状溝3aから研削液供給溝24へ流入し、さ
らに、フランジ3、4の溝部31、41へ供給される。
研削液は、図4(a)〜(c)に示すように、砥石軸1
の回転による遠心力によって外方に移動し、フランジ
3、4の外周縁より研削砥石5の側面に沿って噴出す
る。
In the above-structured grinding apparatus, the grinding fluid supplied from the pump 7 is supplied to the grinding fluid supply groove 24 on the outer periphery of the shaft 2 via the grinding fluid supply passage 63. here,
As shown in FIG. 1B, an annular groove 3 a facing the annular groove 61 b of the fastening member 61 is provided on the left end surface of the front flange 3.
The grinding fluid that has passed through the grinding fluid supply passage 63 flows from the annular groove 3a into the grinding fluid supply groove 24, and is further supplied to the groove portions 31 and 41 of the flanges 3 and 4.
As shown in FIGS. 4A to 4C, the grinding fluid is supplied to the grinding wheel shaft 1.
It moves outward due to the centrifugal force caused by the rotation of, and is ejected from the outer peripheral edges of the flanges 3 and 4 along the side surface of the grinding wheel 5.

【0022】上記構成によれば、フランジ3、4の両支
持面31、41に研削液供給用の多数の溝部32、42
を均等に設けて、広い面積で砥石の未拘束部分が存在し
ないようにしたので、研削砥石5が0.5mm程度以下
と薄い場合でも、研削砥石5に割れや撓みが生じること
がない。また、両支持面31、41の溝部32、42
に、シャフト2外周の研削液供給溝24を連通させると
ともに、周方向の溝25を設けたことで、両支持面3
1、41にバランスよく研削液を供給することができ
る。さらに、フランジ3、4の溝部32、42をそれぞ
れ連通する環状溝33、43を設けて、複数の溝部3
2、42が同圧になるようにしたので、フランジ3の溝
部31およびフランジ4の溝部41へ均等に研削液が流
入する。
According to the above construction, a large number of grooves 32, 42 for supplying the grinding fluid are provided on both support surfaces 31, 41 of the flanges 3, 4.
Are provided evenly so that the unconstrained portion of the grindstone does not exist in a wide area. Therefore, even when the grindstone 5 is as thin as about 0.5 mm or less, the grindstone 5 does not crack or bend. Also, the grooves 32, 42 of both support surfaces 31, 41
The grinding fluid supply groove 24 on the outer periphery of the shaft 2 is communicated with the shaft 2 and the circumferential groove 25 is provided.
The grinding fluid can be supplied to the components 1 and 41 in a well-balanced manner. Further, annular grooves 33 and 43 are provided to communicate the grooves 32 and 42 of the flanges 3 and 4, respectively.
Since the pressures 2 and 42 are set to the same pressure, the grinding fluid flows evenly into the groove 31 of the flange 3 and the groove 41 of the flange 4.

【0023】これにより、図4(c)のように、フラン
ジ3、4の内部から研削砥石5の両側面に沿って研削液
を均等にかつ高圧で噴出させることができる。研削砥石
5の一方の側面の通液量が他方より少ないと、砥石側面
の目詰まりが増殖されて、切削抵抗バランスが崩れ、砥
石は抵抗の少ない方へ進もうとするために溝の曲がり
や、砥石の割れが発生するおそれがあるが、本発明の構
成とすることでこれを防止し、加工精度を高めることが
できる。また、研削部位へ確実に研削液を供給すること
ができるので、研削砥石5の目詰まりや研削焼けを防止
することができ、0.5mm程度以下の細溝加工を良好
に行うことができる。また、多数の溝部32、42の外
周端部32a、42aを細く絞り込んだ形状としたので
より強い液圧が得られ、洗浄、冷却効果が向上し、研削
砥石5の側面に沿って研削液が高圧で供給されるので、
研削液の動圧効果で砥石強度が向上する。さらに、研削
液供給溝24をシャフト2の外周に設けており、穴加工
を施す必要がないので、軸精度の不良や剛性力の低下を
防止することができる。
As a result, as shown in FIG. 4 (c), the grinding fluid can be jetted uniformly and at a high pressure from the inside of the flanges 3 and 4 along both side surfaces of the grinding wheel 5. If the flow rate of one side of the grinding wheel 5 is smaller than that of the other side, the clogging of the side of the grinding wheel is multiplied, and the cutting resistance balance is lost. There is a possibility that the whetstone cracks. However, the configuration according to the present invention can prevent this and improve the processing accuracy. Further, since the grinding fluid can be reliably supplied to the grinding portion, clogging of the grinding wheel 5 and burning of the grinding wheel can be prevented, and fine groove processing of about 0.5 mm or less can be favorably performed. In addition, since the outer peripheral end portions 32a, 42a of the many groove portions 32, 42 are narrowed and narrowed, a stronger hydraulic pressure can be obtained, the cleaning and cooling effects are improved, and the grinding liquid is applied along the side surface of the grinding wheel 5. Because it is supplied at high pressure,
The grinding wheel strength is improved by the dynamic pressure effect of the grinding fluid. Further, since the grinding fluid supply groove 24 is provided on the outer periphery of the shaft 2 and it is not necessary to perform drilling, it is possible to prevent poor shaft accuracy and a reduction in rigidity.

【0024】次に、上記構成の研削装置を使用して、実
際に細溝加工を行った。研削装置の研削砥石5の幅0.
06mm、フランジ3、4からの研削砥石5の突き出し
量3mmとし、加工時の砥石回転数6000rpm、砥
石周速1885mm/min、水溶性の研削液を使用し
て、溝幅0.06mm、溝深さ2.3mmの細溝加工を
実施した。加工する金型の材質はSKD−61とした。
Next, using the above-structured grinding apparatus, a fine groove was actually formed. Width of the grinding wheel 5 of the grinding device
06 mm, the protrusion amount of the grinding wheel 5 from the flanges 3 and 4 is 3 mm, the grinding wheel rotation speed during processing is 6000 rpm, the grinding wheel peripheral speed is 1885 mm / min, the groove width is 0.06 mm, the groove depth is 0.06 mm. A 2.3 mm thin groove was machined. The material of the mold to be processed was SKD-61.

【0025】まず、細溝加工に先立って、研削液供給溝
24と溝25の溝幅の調整を行った。調整は、両フラン
ジ3、4に研削砥石5を挟持させた状態で、通水テスト
を行い、フロントフランジ3側の通水量が多い場合には
研削液供給溝24の幅を広げ、逆の場合には溝25の幅
を広げて、フロントフランジ3とリヤフランジ4の通水
量のバランスが取りながら溝幅の調整を行った。なお、
通液バランスの確認方法は、両フランジ3、4に研削砥
石5を挟持させた状態で、円周方向にフランジの片側を
5度程度ずらし、両フランジ3、4の溝が交互に並ぶ形
として、その際の水柱の高さを目視で確認した。
First, prior to the processing of the fine grooves, the groove widths of the grinding liquid supply grooves 24 and the grooves 25 were adjusted. For adjustment, a water flow test is performed with the grinding wheel 5 sandwiched between the flanges 3 and 4. If the water flow rate on the front flange 3 side is large, the width of the grinding fluid supply groove 24 is increased, and The width of the groove 25 was increased, and the width of the groove was adjusted while balancing the amount of water flow between the front flange 3 and the rear flange 4. In addition,
The method of checking the liquid flow balance is such that, while the grinding wheel 5 is held between the flanges 3 and 4, one side of the flange is shifted about 5 degrees in the circumferential direction so that the grooves of the flanges 3 and 4 are alternately arranged. The height of the water column at that time was visually checked.

【0026】その後、上記条件で細溝加工を実施したと
ころ、研削部位へ良好に研削液が供給され、目詰まりや
焼き付き、砥石の割れ等の不具合を生じることなく、細
溝加工を行うことができた。以上のように、本発明の研
削装置によれば、砥石軸への穴加工を行うことなく両フ
ランジ3、4へバランスよく通水することが可能であ
り、砥石軸強度を確保し、砥石割れを防止しつつ、従来
不可能であった数10μm程度の細溝の研削が可能であ
る。
After that, when the fine groove processing was performed under the above conditions, the grinding fluid was supplied to the ground portion satisfactorily, and the fine groove processing could be performed without causing problems such as clogging, seizure, and cracking of the grindstone. did it. As described above, according to the grinding apparatus of the present invention, it is possible to flow water to both flanges 3 and 4 in a well-balanced manner without performing drilling on the grinding wheel shaft, to secure the grinding wheel shaft strength, While grinding is prevented, it is possible to grind a narrow groove of about several tens μm, which was impossible in the past.

【図面の簡単な説明】[Brief description of the drawings]

【図1】(a)は本発明の研削装置の全体構成図、
(b)はその分解図である。
FIG. 1A is an overall configuration diagram of a grinding device of the present invention,
(B) is an exploded view thereof.

【図2】(a)はフランジの支持面側の正面図、(b)
はフランジの側面断面図で(a)のA−A線断面図、
(c)はフランジの側面断面図で(a)のB−B線断面
図である。
FIG. 2A is a front view of a support surface side of a flange, and FIG.
Is a cross-sectional side view of the flange, taken along line AA of FIG.
(C) is a side sectional view of the flange, and is a sectional view taken along line BB of (a).

【図3】(a)はシャフトの正面図、(b)はシャフト
の側面図である。
3A is a front view of a shaft, and FIG. 3B is a side view of the shaft.

【図4】(a)は本発明の研削装置に研削液濾過用フィ
ルタを取り付けた構成を示す図、(b)は研削液濾過用
フィルタの概略構成図である。
FIG. 4A is a diagram showing a configuration in which a grinding fluid filtering filter is attached to the grinding device of the present invention, and FIG. 4B is a schematic configuration diagram of the grinding fluid filtering filter.

【図5】本発明の研削装置の作動を説明するための図
で、(a)はフランジへの通液状態を示す部分断面図、
(b)はフランジからの研削液の噴出状態を示す図、
(c)は研削砥石側面への研削液の供給状態を示す図で
ある。
5A and 5B are views for explaining the operation of the grinding device of the present invention, wherein FIG. 5A is a partial cross-sectional view showing a state in which liquid flows through a flange;
(B) is a diagram showing a state in which the grinding fluid is ejected from the flange,
(C) is a figure which shows the state of supply of the grinding fluid to the grinding wheel side surface.

【図6】従来の研削装置の研削液の供給状態を示す図で
ある。
FIG. 6 is a diagram showing a supply state of a grinding fluid in a conventional grinding device.

【図7】従来の研削装置の全体構成図である。FIG. 7 is an overall configuration diagram of a conventional grinding device.

【符号の説明】[Explanation of symbols]

1 砥石軸 2 シャフト(軸部材) 23 先端 24 研削液供給溝 25 周方向の溝 3、4 一対のフランジ 31、41 支持面 32、42 複数の溝部 5 研削砥石 6 筒状部材 61 締結部材 62 ベアリングホルダ 63 研削液供給路 7 研削液供給ポンプ 8 研削液濾過用フィルタ DESCRIPTION OF SYMBOLS 1 Whetstone shaft 2 Shaft (shaft member) 23 Tip 24 Grinding fluid supply groove 25 Circumferential groove 3, 4 A pair of flanges 31, 41 Support surface 32, 42 Plural grooves 5 Grinding grindstone 6 Cylindrical member 61 Fastening member 62 Bearing Holder 63 Grinding fluid supply path 7 Grinding fluid supply pump 8 Filter for grinding fluid filtration

───────────────────────────────────────────────────── フロントページの続き (72)発明者 中西 友彦 愛知県西尾市下羽角町岩谷14番地 株式会 社日本自動車部品総合研究所内 (72)発明者 安藤 芳康 愛知県刈谷市昭和町1丁目1番地 株式会 社デンソー内 Fターム(参考) 3C047 GG01 3C049 AA03 AA14 AC04 CA01 CA02 CB01 CB02  ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Tomohiko Nakanishi 14 Iwatani, Shimowasumi-cho, Nishio-shi, Aichi Japan Inside Automobile Research Institute, Inc. (72) Inventor Yoshiyasu Ando 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture F term in DENSO Corporation (reference) 3C047 GG01 3C049 AA03 AA14 AC04 CA01 CA02 CB01 CB02

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 回転駆動される軸部材の先端部外周に一
対のフランジを装着して、該一対のフランジ間に研削砥
石を挟持し、上記一対のフランジに研削液供給用の通路
を設けた研削装置において、上記一対のフランジの、上
記研削砥石を支持する両支持面にそれぞれ上記通路とな
る複数の溝部を放射状に設けるとともに、上記軸部材の
先端部外周に複数の軸方向に延びる研削液供給溝を形成
して、上記両支持面の上記複数の溝部に連通させたこと
を特徴とする研削装置。
1. A pair of flanges are mounted on the outer periphery of a tip portion of a shaft member driven to rotate, a grinding wheel is sandwiched between the pair of flanges, and a passage for supplying a grinding fluid is provided in the pair of flanges. In the grinding device, a plurality of grooves serving as the passages are radially provided on both the support surfaces of the pair of flanges that support the grinding wheel, and a plurality of grinding fluids extending in a plurality of axial directions on the outer periphery of the distal end of the shaft member. A grinding device, wherein a supply groove is formed and communicated with the plurality of grooves on both support surfaces.
【請求項2】 上記軸部材の先端部外周に、上記複数の
研削液供給溝の流れ方向の先端部を互いに連通する周方
向の溝を形成した請求項1記載の研削装置。
2. The grinding apparatus according to claim 1, wherein circumferential grooves are formed on the outer periphery of the distal end of the shaft member so as to communicate the distal ends of the plurality of grinding fluid supply grooves in the flow direction.
【請求項3】 上記一対のフランジの上記両支持面に、
上記複数の溝部を互いに連通する環状溝を形成した請求
項1または2記載の研削装置。
3. The two support surfaces of the pair of flanges,
3. The grinding device according to claim 1, wherein an annular groove connecting the plurality of grooves is formed.
【請求項4】 上記フランジから突出する上記軸部材の
先端に、内部を上記研削液供給溝に連通する研削液供給
路とする筒状部材を装着した請求項1または2記載の研
削装置。
4. The grinding device according to claim 1, wherein a cylindrical member serving as a grinding fluid supply passage having an inside communicating with the grinding fluid supply groove is mounted at a tip of the shaft member protruding from the flange.
JP10220199A 1999-04-09 1999-04-09 Grinding equipment Expired - Fee Related JP4283372B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10220199A JP4283372B2 (en) 1999-04-09 1999-04-09 Grinding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10220199A JP4283372B2 (en) 1999-04-09 1999-04-09 Grinding equipment

Publications (2)

Publication Number Publication Date
JP2000288931A true JP2000288931A (en) 2000-10-17
JP4283372B2 JP4283372B2 (en) 2009-06-24

Family

ID=14321062

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10220199A Expired - Fee Related JP4283372B2 (en) 1999-04-09 1999-04-09 Grinding equipment

Country Status (1)

Country Link
JP (1) JP4283372B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016043423A (en) * 2014-08-20 2016-04-04 株式会社ディスコ Cutting device
KR20240111425A (en) * 2023-01-10 2024-07-17 주식회사 윈텍오토메이션 Product degradation prevention system for double-sided grinding devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101389623B1 (en) 2012-05-03 2014-04-29 홍성용 Water cooled hand grinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016043423A (en) * 2014-08-20 2016-04-04 株式会社ディスコ Cutting device
KR20240111425A (en) * 2023-01-10 2024-07-17 주식회사 윈텍오토메이션 Product degradation prevention system for double-sided grinding devices
KR102698879B1 (en) 2023-01-10 2024-08-26 주식회사 윈텍오토메이션 Product degradation prevention system for double-sided grinding devices

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