JP2011079113A - Device for mounting disc-shaped rotary tool - Google Patents

Device for mounting disc-shaped rotary tool Download PDF

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Publication number
JP2011079113A
JP2011079113A JP2009235550A JP2009235550A JP2011079113A JP 2011079113 A JP2011079113 A JP 2011079113A JP 2009235550 A JP2009235550 A JP 2009235550A JP 2009235550 A JP2009235550 A JP 2009235550A JP 2011079113 A JP2011079113 A JP 2011079113A
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Japan
Prior art keywords
rotary tool
disk
shaped rotary
inner peripheral
shaped
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Pending
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JP2009235550A
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Japanese (ja)
Inventor
Sokichi Takemura
曽吉 竹村
Akihiko Nakagawa
明彦 中川
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Tenryu Saw Manufacturing Co Ltd
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Tenryu Saw Manufacturing Co Ltd
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Priority to JP2009235550A priority Critical patent/JP2011079113A/en
Priority to US12/797,677 priority patent/US20110086582A1/en
Priority to DE102010031342A priority patent/DE102010031342A1/en
Publication of JP2011079113A publication Critical patent/JP2011079113A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/16—Bushings; Mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/29—Details; Component parts; Accessories
    • B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
    • B27B5/32—Devices for securing circular saw blades to the saw spindle

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for mounting a disc-shaped rotary tool in which the construction is simple and vibration thereof can be suppressed during use. <P>SOLUTION: The disc-shaped rotary tool (15) having a grinding surface (17) on an outer circumferential part thereof is provided with annular holding grooves (18) on an inner circumferential part thereof. The annular holding grooves (18) are fitted with exposed ring-shaped shock-absorbing bodies (30). A pair of holding bodies (20) are provided so as to face the both sides of the inner circumferential part of the disc-shaped rotary tool (15). The holding bodies (20) hold the both sides of the inner circumferential part of the disc-shaped rotary tool (15) through the shock-absorbing bodies (30) and the axial center part of the holding bodies (20) is fitted to an output shaft (11) of an electric motor (10) to fix integrally. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、ディスク砥石、丸鋸等の円板状回転工具を弾圧挟持して電動回転機の出力軸に取り付ける円板状回転工具の取付け装置に関するものである。  The present invention relates to a mounting device for a disk-shaped rotating tool that is mounted on an output shaft of an electric rotating machine by elastically holding a disk-shaped rotating tool such as a disk grindstone or a circular saw.

従来の技術として特許文献１があった。即ち、図５に示すように、電動回転機１の駆動軸２に、外端側からインナフランジ３、緩衝リング４、カップホイール６、及びロックナット７を順次嵌合させる。前記緩衝リング４はカップホイール６のホイール本体６ａとの対面部に環状の凹周溝４ａを形成し、該凹周溝４ａにリング状のクッション材５を嵌着する。６ｂはホイール本体６ａの外側面（右面）の外周部に固着した研削刃である。   There existed patent document 1 as a prior art. That is, as shown in FIG. 5, the inner flange 3, the buffer ring 4, the cup wheel 6, and the lock nut 7 are sequentially fitted to the drive shaft 2 of the electric rotating machine 1 from the outer end side. The buffer ring 4 is formed with an annular concave circumferential groove 4a at a portion facing the wheel body 6a of the cup wheel 6, and a ring-shaped cushion material 5 is fitted into the concave circumferential groove 4a. 6b is a grinding blade fixed to the outer peripheral portion of the outer surface (right surface) of the wheel body 6a.

そして、ロックナット７を締め込んでカップホイール６をインナフランジ３方向に移動させ、ホイール本体６ａの背面（左面）をクッション材５に弾圧接触させるようにしたものがあった。   Then, the lock nut 7 is tightened to move the cup wheel 6 toward the inner flange 3 so that the back surface (left surface) of the wheel body 6a is brought into elastic contact with the cushion material 5.

前記従来のものは、使用時に発生するカップホイール６の振動がクッション材５により緩衝されて電動回転機１側に伝達されることになるので、使用者への振動による負担が軽減されることになる。しかしながら、クッション材５を保持する凹周溝４ａが小物の緩衝リング４に形成されていたので、凹周溝４ａの加工に手数を要したり、凹周溝４ａの形成によって緩衝リング４の剛性が低下したりするものであった。   In the conventional device, vibration of the cup wheel 6 generated during use is buffered by the cushion material 5 and transmitted to the electric rotating machine 1 side, so that the burden on the user due to vibration is reduced. Become. However, since the concave circumferential groove 4a for holding the cushion material 5 is formed in the small buffer ring 4, it takes time to process the concave circumferential groove 4a, or the rigidity of the buffer ring 4 is increased by forming the concave circumferential groove 4a. Was reduced.

特許第３０３２５３０号公報Japanese Patent No. 3032530

本発明は、簡素な構造にして使用時の振動が軽減できる円板状回転工具の取付け装置を得ることを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a disk-shaped rotary tool mounting device that has a simple structure and can reduce vibration during use.

本発明は、前記目的を達成するために以下の如く構成したものである。即ち、請求項１に係る発明は、外周部に研削面を有する円板状回転工具の内周部の少なくとも電動回転機側の面に環状の保持溝を設け、該保持溝にリング状の緩衝体を露出させて嵌合させ、前記円板状回転工具の内周部の両側に対面する一対の挟持体を設け、該挟持体により前記緩衝体を介して前記円板状回転工具の内周部両側を挟持するとともに、該挟持体の軸心部を電動回転機の出力軸に嵌合させて一体的に固定する構成にしたものである。
請求項２に係る発明は、円板状回転工具の内周部を波形に湾曲させて環状の保持溝を形成する構成にしたものである。
請求項３に係る発明は、出力軸の基部に段状に拡開する座面を設けるとともに、該座面の軸心部から外側方に突出するねじ軸を設け、一方の挟持体の軸心部に前記ねじ軸に螺合するとともに一端面が前記座面に当接する筒部を設け、該筒部の基部外周に円板状回転工具の軸心部に相対回転不能に嵌合する係合突起を設け、前記筒部の端部外周に他方の挟持体の軸心部が螺合するおねじを形成し、前記係合突起の軸長を円板状回転工具の内周部の軸方向の幅よりも若干大きくする構成にしたものである。 The present invention is configured as follows to achieve the above object. That is, according to the first aspect of the present invention, an annular holding groove is provided on at least the electric rotating machine side surface of the inner peripheral portion of the disk-shaped rotary tool having a grinding surface on the outer peripheral portion, and a ring-shaped buffer is provided in the holding groove. A body is exposed and fitted, and a pair of sandwiching bodies facing both sides of the inner periphery of the disk-shaped rotary tool is provided, and the inner periphery of the disk-shaped rotary tool is interposed by the sandwiching body through the buffer body. In addition to sandwiching both sides of the part, the shaft center part of the sandwiching body is fitted to the output shaft of the electric rotating machine and fixed integrally.
The invention according to claim 2 is configured such that an annular holding groove is formed by curving the inner peripheral portion of the disk-shaped rotary tool into a waveform.
According to a third aspect of the present invention, a seat surface that expands stepwise is provided at the base portion of the output shaft, and a screw shaft that protrudes outward from the shaft center portion of the seat surface is provided. An engaging portion that is threadedly engaged with the screw shaft and whose one end surface is in contact with the seating surface, and is fitted to the outer periphery of the base portion of the cylindrical portion so as to be relatively non-rotatable with the axial center portion of the disk-shaped rotary tool. A projection is provided, and an external thread is formed on the outer periphery of the end portion of the cylindrical portion, and the axial center portion of the other clamping body is screwed, and the axial length of the engagement projection is set in the axial direction of the inner peripheral portion of the disk-shaped rotary tool. The width is slightly larger than the width.

請求項１に係る発明は、径の大きい円板状回転工具の内周部に緩衝体を保持する保持溝を形成するようにしたので、該保持溝の形成（加工）が容易になる。一方、円板状回転工具を挟持する小物の挟持体は単純な形状となってこれの形成が容易になるとともに、剛性が低下しなくなる。
請求項２に係る発明は、前記保持溝を、円板状回転工具の内周部を波形に湾曲させて形成するようにしたので、円板状回転工具の内周部の剛性が高くなるとともに、保持溝をプレスによって迅速かつ高精度に形成することができる。
請求項３に係る発明は、一方の挟持体の筒部の係合突起に円板状回転工具を嵌合させるとともに、該円板状回転工具の保持溝に緩衝体を嵌合させ、次いで前記筒部のおねじに他方の挟持体を螺合させると、前記円板状回転工具が緩衝体により弾圧された状態で、円板状回転工具と各挟持体とがユニットとなる。このため、円板状回転工具、緩衝体、及び各挟持体を設備のある工場で高精度に組み付けてユニットにすることができ、該ユニットを現場に持ち込んで電動回転機の出力軸に迅速かつ高精度に取り付けることができる。 In the invention according to claim 1, since the holding groove for holding the buffer is formed on the inner peripheral portion of the disk-shaped rotary tool having a large diameter, the formation (processing) of the holding groove is facilitated. On the other hand, the accessory holding body for holding the disk-like rotary tool has a simple shape, which can be easily formed and the rigidity is not lowered.
In the invention according to claim 2, since the holding groove is formed by curving the inner peripheral portion of the disk-shaped rotary tool in a waveform, the rigidity of the inner peripheral portion of the disk-shaped rotary tool is increased. The holding groove can be formed quickly and with high accuracy by pressing.
According to a third aspect of the present invention, the disk-shaped rotary tool is fitted to the engagement protrusion of the cylindrical portion of one of the sandwiching bodies, and the buffer is fitted to the holding groove of the disk-shaped rotary tool. When the other holding body is screwed onto the male screw of the cylindrical portion, the disk-shaped rotating tool and each holding body become a unit in a state where the disk-shaped rotating tool is elastically pressed by the buffer body. For this reason, the disk-shaped rotary tool, the buffer body, and each sandwiching body can be assembled into a unit with high accuracy at the factory where the equipment is installed, and the unit can be quickly brought to the output shaft of the electric rotating machine by bringing it into the field. Can be attached with high accuracy.

本発明の第１実施例示す断面図である。It is sectional drawing which shows 1st Example of this invention. 図１のII-II線による拡大断面図である。It is an expanded sectional view by the II-II line of FIG. 本発明の第２実施例示す部分断面図である。It is a fragmentary sectional view showing the 2nd example of the present invention. 本発明の第３実施例示す要部拡大断面図である。It is a principal part expanded sectional view which shows 3rd Example of this invention. 従来例を示す断面図である。It is sectional drawing which shows a prior art example.

以下本発明の実施例を図面に基いて説明する。図１において、１０は電動回転機（ディスクグラインダー）のケース、１１はケース１０から外側方（右方）に突出させた駆動用の出力軸であり、基端部に段状の座面１１ａが形成され、該座面１１ａの軸心部から右方に向かって突出する小径のねじ軸１２が形成されている。   Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 10 is a case of an electric rotating machine (disc grinder), 11 is an output shaft for driving projecting outward (right) from the case 10, and a stepped seating surface 11a is formed at the base end. A small-diameter screw shaft 12 that is formed and protrudes rightward from the axial center portion of the seat surface 11a is formed.

前記出力軸１１に挟持体２０を介して丸鋸、ディスク砥石等の円板状回転工具１５を取り付ける。円板状回転工具１５は、鋼板により形成された基板１６の外周部の外面（右面）に超硬質の砥粒を固着し、この部を研削面１７とする。また、基板１６の内周部を内側方（左方）に向けて台形状に屈曲させるとともに、その頂面、即ち、内周壁１６ａをプレス機により波形に湾曲させてその左右面に環状の保持溝１８（内保持溝１８ａ，外保持溝１８ｂ）を形成する。該保持溝１８は、Ｏリングからなるリング状の緩衝体３０（３０ａ，３０ｂ）が露出して嵌合する深さとする。   A disk-like rotary tool 15 such as a circular saw or a disc grindstone is attached to the output shaft 11 via a sandwiching body 20. The disk-shaped rotary tool 15 fixes super hard abrasive grains to the outer surface (right surface) of the outer peripheral portion of the substrate 16 formed of a steel plate, and this portion is used as a grinding surface 17. In addition, the inner peripheral portion of the substrate 16 is bent in a trapezoidal shape toward the inner side (left side), and the top surface, that is, the inner peripheral wall 16a is bent into a corrugated shape by a press machine and is held annularly on the left and right surfaces Grooves 18 (inner holding groove 18a and outer holding groove 18b) are formed. The holding groove 18 has a depth to which the ring-shaped buffer body 30 (30a, 30b) made of an O-ring is exposed and fitted.

前記保持溝１８の内周側に位置する軸心部の壁を打ち抜いてスプライン形の中心穴１９（図２）を形成する。なお、前記保持溝１８は、図３に示すように、基板１６の内周壁１６ａを半径方向に所定の間隔をおいて二カ所湾曲させ、左面に大径の内保持溝１８ａを、右面に小径の外保持溝１８ｂを形成するようにしてもよい。   A spline-shaped center hole 19 (FIG. 2) is formed by punching a wall of an axial center portion located on the inner peripheral side of the holding groove 18. As shown in FIG. 3, the holding groove 18 is formed by bending the inner peripheral wall 16a of the substrate 16 at two predetermined intervals in the radial direction, a large-diameter inner holding groove 18a on the left side, and a small-diameter on the right side. The outer holding groove 18b may be formed.

前記挟持体２０は金属製とし、段付き管状の外挟持体（一方の挟持体）２１、及び円板状の内挟持体（他方の挟持体）２８からなる。外挟持体２１は、図１、図２に示すように、大径の鍔部２２の軸心部に左方に向かって突出する筒部２３を一体に有する。前記鍔部２２は前記基板１６の内周壁１６ａの外面（右面）に対面する径にするとともに、外面（右面）側に操作具が嵌合係止する操作孔２２ａを周方向に４個形成する。   The sandwiching body 20 is made of metal and includes a stepped tubular outer sandwiching body (one sandwiching body) 21 and a disk-shaped inner sandwiching body (the other sandwiching body) 28. As shown in FIGS. 1 and 2, the outer sandwiching body 21 integrally has a cylindrical portion 23 that protrudes leftward from the axial center portion of the large-diameter collar portion 22. The flange portion 22 has a diameter that faces the outer surface (right surface) of the inner peripheral wall 16a of the substrate 16, and four operation holes 22a in which the operation tool is fitted and locked on the outer surface (right surface) side are formed in the circumferential direction. .

前記筒部２３の基部外周に、円板状回転工具１５の中心孔１９に相対回転不能に嵌合係止するスプライン歯形の係合突起２４を形成する。該係合突起２４の軸長は円板状回転工具１５の内周壁１６ａの軸方向の幅よりも若干大きくする。また、前記筒部２３の左端部外周を段状に小径にし、該小径部の外周におねじ２５を形成する。   A spline tooth-shaped engagement protrusion 24 is formed on the outer periphery of the base portion of the cylindrical portion 23 so as to be fitted and locked in the center hole 19 of the disk-like rotary tool 15 so as not to be relatively rotatable. The axial length of the engagement protrusion 24 is slightly larger than the axial width of the inner peripheral wall 16a of the disk-shaped rotary tool 15. Further, the outer periphery of the left end portion of the cylindrical portion 23 is stepped to have a small diameter, and a screw 25 is formed on the outer periphery of the small diameter portion.

前記内挟持体２８は、前記基板１６の内周壁１６ａの内面（左面）に対面する径にするとともに、その軸心部に前記外挟持体２１のおねじ２５に螺合するめねじ２８ａを形成し、左部にスパナ等の工具が係合する二面取りされた工具係合部２８ｂを形成する。   The inner clamping body 28 has a diameter that faces the inner surface (left surface) of the inner peripheral wall 16a of the substrate 16, and a female screw 28a that engages with the screw 25 of the outer clamping body 21 is formed at the axial center thereof. The two-chamfered tool engaging portion 28b with which a tool such as a spanner engages is formed on the left side.

図４は第３実施例を示す。図４において、１６は円板状回転工具１５の基板、１６ａは基板１６の内周壁、２１は外挟持体、２８は内挟持体である。本第３実施例は、基板１６の内周壁１６ａの左面に、内周壁１６ａの一部の肉をリング状に除去して内保持溝１８ａを形成し、外挟持体２１の鍔部２２の左面に、鍔部２２の一部の肉をリング状に除去して外保持溝２２ｂを形成し、前記内保持溝１８ａに内緩衝体３０ａを，前記外保持溝１８ｂに外緩衝体３０ｂをそれぞれ外側方に露出させて嵌合させる。なお、前記内保持溝１８ａと外保持溝２２ｂ、及び内緩衝体３０ａと外緩衝体３０ｂとは共に同じ径とする。   FIG. 4 shows a third embodiment. In FIG. 4, 16 is a board | substrate of the disk shaped rotary tool 15, 16a is the inner peripheral wall of the board | substrate 16, 21 is an outer clamping body, 28 is an inner clamping body. In the third embodiment, on the left surface of the inner peripheral wall 16a of the substrate 16, a part of the inner peripheral wall 16a is removed in a ring shape to form an inner holding groove 18a, and the left surface of the flange portion 22 of the outer sandwiching body 21 is formed. In addition, a part of meat of the flange portion 22 is removed in a ring shape to form an outer holding groove 22b, and the inner buffer body 30a is formed in the inner holding groove 18a and the outer buffer body 30b is formed in the outer holding groove 18b. To be exposed and fitted. The inner holding groove 18a and the outer holding groove 22b, and the inner buffer body 30a and the outer buffer body 30b have the same diameter.

次に前記実施例の使用態様について説明する。図１、図３においては、まず、円板状回転工具１５の内周壁１６ａに形成した左右の内保持溝１８ａ及び外保持溝１８ｂにそれぞれＯリングからなる内緩衝体３０ａ、外緩衝体３０ｂを嵌合又は対面させ、この状態で前記円板状回転工具１５の中心孔１９を外挟持体２１の係合突起２４に嵌合させる。次いで、内挟持体２８を前記外挟持体２１のおねじ２５にねじ込み、該内挟持体２８の右面（外面）を係合突起２４の左面に圧接する。   Next, the usage mode of the embodiment will be described. In FIG. 1 and FIG. 3, first, an inner buffer body 30a and an outer buffer body 30b made of O-rings are respectively formed in the left and right inner holding grooves 18a and outer holding grooves 18b formed on the inner peripheral wall 16a of the disk-shaped rotary tool 15. In this state, the center hole 19 of the disk-like rotary tool 15 is fitted to the engagement protrusion 24 of the outer sandwiching body 21. Next, the inner clamping body 28 is screwed into the external thread 25 of the outer clamping body 21, and the right surface (outer surface) of the inner clamping body 28 is pressed against the left surface of the engagement protrusion 24.

さすれば、前記内緩衝体３０ａ、外緩衝体３０ｂが、外挟持体２１及び内挟持体２８によって円板状回転工具１５の内周壁１６ａの左右面に押圧されて所定量弾性変形し、円板状回転工具１５が前記内緩衝体３０ａと外緩衝体３０ｂとにより挟圧された状態で、円板状回転工具１５と各挟持体２１，２８とがユニットとなる。次いで、外挟持体２１の筒部２３を電動回転機１０の出力軸１１にねじ込み、その左端面を出力軸１１の座面１１ａに当接させる。これにより、円板状回転工具１５を電動回転機１０の出力軸１１に迅速かつ高精度に取り付けることができる。   In this case, the inner buffer body 30a and the outer buffer body 30b are pressed against the left and right surfaces of the inner peripheral wall 16a of the disk-shaped rotary tool 15 by the outer clamp body 21 and the inner clamp body 28, and elastically deform by a predetermined amount. In a state where the plate-like rotary tool 15 is clamped by the inner buffer body 30a and the outer buffer body 30b, the disk-like rotary tool 15 and the holding bodies 21 and 28 form a unit. Next, the cylindrical portion 23 of the outer clamping body 21 is screwed into the output shaft 11 of the electric rotating machine 10, and the left end surface thereof is brought into contact with the seating surface 11 a of the output shaft 11. Thereby, the disk-shaped rotary tool 15 can be quickly and accurately attached to the output shaft 11 of the electric rotating machine 10.

また、図４においては、円板状回転工具１５の内周壁１６ａに形成した左面の内保持溝１８ａに内緩衝体３０ａを嵌合させ、外挟持体２１の鍔部２２の左面に形成した外保持溝２２ｂに外緩衝体３０ｂをそれぞれ外側方に露出させて嵌合させる。この状態で円板状回転工具１５の中心孔１９を外挟持体２１の係合突起２４に嵌合させ、次いで、内挟持体２８を前記外挟持体２１のおねじ２５にねじ込み、該内挟持体２８の右面（外面）を係合突起２４の左面に圧接する。   In FIG. 4, the inner buffer body 30 a is fitted into the left inner holding groove 18 a formed on the inner peripheral wall 16 a of the disk-shaped rotary tool 15, and the outer formed on the left surface of the flange portion 22 of the outer holding body 21. The outer buffer bodies 30b are respectively exposed to the outer sides of the holding grooves 22b and fitted. In this state, the center hole 19 of the disk-shaped rotary tool 15 is fitted into the engaging protrusion 24 of the outer holding body 21, and then the inner holding body 28 is screwed into the screw 25 of the outer holding body 21, and the inner holding The right surface (outer surface) of the body 28 is pressed against the left surface of the engagement protrusion 24.

さすれば、前述と同様に、円板状回転工具１５が内緩衝体３０ａと外緩衝体３０ｂとにより挟圧された状態で、円板状回転工具１５及び各挟持体２１，２８がユニットとなり、次いで、外挟持体２１の筒部２３を電動回転機１０の出力軸１１にねじ込むことにより、円板状回転工具１５を電動回転機１０の出力軸１１に迅速かつ高精度に取り付けることができる。なお、本発明は、図１において、円盤状回転工具１５を左右反転させることなく、外挟持体２１と内挟持体２８とを左右逆にしてもよい。また、緩衝体３０は、外緩衝体３０ｂを省略し、内緩衝体３０ａのみにしてもよい。   In the same manner as described above, the disk-shaped rotary tool 15 and the holding bodies 21 and 28 become a unit in a state where the disk-shaped rotary tool 15 is clamped by the inner buffer body 30a and the outer buffer body 30b. Next, the cylindrical rotating tool 15 can be quickly and accurately attached to the output shaft 11 of the electric rotating machine 10 by screwing the cylindrical portion 23 of the outer holding body 21 into the output shaft 11 of the electric rotating machine 10. . In the present invention, in FIG. 1, the outer sandwiching body 21 and the inner sandwiching body 28 may be reversed left and right without inverting the disc-shaped rotary tool 15 left and right. Further, the buffer body 30 may be formed by omitting the outer buffer body 30b and only the inner buffer body 30a.

１０ 電動回転機
１１ 出力軸
１１ａ 座面
１２ ねじ軸
１５ 円板状回転工具
１６ 基板
１６ａ 内周壁
１７ 研削面
１８ 保持溝
１８ａ 内保持溝
１８ｂ 外保持溝
１９ 中心孔
２０ 挟持体
２１ 外挟持体（一方の挟持体）
２２ 鍔部
２２ａ 操作穴
２３ 筒部
２４ 係合突起
２５ おねじ
２８ 内挟持体（他方の挟持体）
２８ａ めねじ
２８ｂ 工具係合部
３０ 緩衝体（Ｏリング）
３０ａ 内緩衝体
３０ｂ 外緩衝体 DESCRIPTION OF SYMBOLS 10 Electric rotating machine 11 Output shaft 11a Seat surface 12 Screw shaft 15 Disk-shaped rotary tool 16 Substrate 16a Inner peripheral wall 17 Grinding surface 18 Holding groove 18a Inner holding groove 18b Outer holding groove 19 Center hole 20 Holding body 21 Outer holding body (one side) Sandwiched body)
22 collar part 22a operation hole 23 cylinder part 24 engaging protrusion 25 external thread 28 inner clamping body (the other clamping body)
28a Female thread 28b Tool engagement part 30 Shock absorber (O-ring)
30a inner buffer 30b outer buffer

Claims (3)

外周部に研削面（１７）を有する円板状回転工具（１５）の内周部の少なくとも電動回転機（１０）側の面に環状の保持溝（１８）を設け、該保持溝（１８）にリング状の緩衝体（３０）を露出させて嵌合させ、前記円板状回転工具（１５）の内周部の両側に対面する一対の挟持体（２０）を設け、該挟持体（２０）により前記緩衝体（３０）を介して前記円板状回転工具（１５）の内周部両側を挟持するとともに、該挟持体（２０）の軸心部を電動回転機（１０）の出力軸（１１）に嵌合させて一体的に固定したことを特徴とする円板状回転工具の取付け装置。   An annular holding groove (18) is provided at least on the surface on the electric rotating machine (10) side of the inner peripheral portion of the disk-shaped rotary tool (15) having a grinding surface (17) on the outer peripheral portion, and the holding groove (18). A ring-shaped shock absorber (30) is exposed and fitted to each other, and a pair of sandwiching bodies (20) facing both sides of the inner peripheral portion of the disk-shaped rotary tool (15) are provided, and the sandwiching bodies (20 ) To sandwich both sides of the inner peripheral portion of the disk-shaped rotary tool (15) via the buffer body (30), and the shaft center portion of the clamp body (20) is used as the output shaft of the electric rotating machine (10). (11) A disc-shaped rotating tool mounting device that is fitted and fixed integrally. 円板状回転工具（１５）の内周部を波形に湾曲させて環状の保持溝（１８）を形成したことを特徴とする請求項１記載の円板状回転工具の取付け装置。   The disk-shaped rotary tool mounting device according to claim 1, wherein an annular holding groove (18) is formed by curving the inner peripheral portion of the disk-shaped rotary tool (15) into a waveform. 出力軸（１１）の基部に段状に拡開する座面（１１ａ）を設けるとともに、該座面（１１ａ）の軸心部から外側方に突出するねじ軸（１２）を設け、一方の挟持体（２１）の軸心部に前記ねじ軸（１２）に螺合するとともに一端面が前記座面（１１ａ）に当接する筒部（２３）を設け、該筒部（２３）の基部外周に円板状回転工具（１５）の軸心部に相対回転不能に嵌合する係合突起（２４）を設け、前記筒部（２３）の端部外周に他方の挟持体（２８）の軸心部が螺合するおねじ（２５）を形成し、前記係合突起（２４）の軸長を円板状回転工具（１５）の内周部の軸方向の幅よりも若干大きくしたことを特徴とする請求項１又は２記載の円板状回転工具の取付け装置。   The base of the output shaft (11) is provided with a seating surface (11a) that expands stepwise, and a screw shaft (12) that protrudes outward from the axial center of the seating surface (11a) is provided to clamp one A cylindrical portion (23) is provided at the axial center portion of the body (21) so as to be screwed onto the screw shaft (12) and one end surface of which is in contact with the seat surface (11a). An engaging projection (24) that fits in a relatively non-rotatable manner is provided at the axial center of the disk-shaped rotary tool (15), and the axial center of the other clamping body (28) is provided on the outer periphery of the end of the cylindrical portion (23). A male screw (25) in which the portion is screwed is formed, and the axial length of the engaging protrusion (24) is slightly larger than the axial width of the inner peripheral portion of the disk-shaped rotary tool (15). A mounting device for a disk-shaped rotary tool according to claim 1 or 2.
JP2009235550A 2009-10-09 2009-10-09 Device for mounting disc-shaped rotary tool Pending JP2011079113A (en)

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JP2009235550A JP2011079113A (en) 2009-10-09 2009-10-09 Device for mounting disc-shaped rotary tool
US12/797,677 US20110086582A1 (en) 2009-10-09 2010-06-10 Mounting device for disk-shaped rotating tool
DE102010031342A DE102010031342A1 (en) 2009-10-09 2010-07-14 Device for mounting a disk-shaped turning tool

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