JP2615864B2 - Double head surface grinding machine - Google Patents
Double head surface grinding machineInfo
- Publication number
- JP2615864B2 JP2615864B2 JP15319288A JP15319288A JP2615864B2 JP 2615864 B2 JP2615864 B2 JP 2615864B2 JP 15319288 A JP15319288 A JP 15319288A JP 15319288 A JP15319288 A JP 15319288A JP 2615864 B2 JP2615864 B2 JP 2615864B2
- Authority
- JP
- Japan
- Prior art keywords
- conveyor belt
- workpiece
- grinding
- surface grinding
- double
- 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.)
- Expired - Lifetime
Links
Landscapes
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は被加工物の搬送ベルトを挟んで上下方向に対
向した砥石車を配設し、前記被加工物の上下両面を同時
に研削する両頭平面研削装置に関するものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided surface grinding method in which grinding wheels arranged vertically in opposite directions with a conveyor belt of a workpiece interposed therebetween are used to simultaneously grind both upper and lower surfaces of the workpiece. It concerns the device.
従来の技術 近年、両頭平面研削装置は、金属材料をはじめガラ
ス，セラミック，水晶などの硬く脆い材料など様々な素
材を精密かつ高速に研削する手段として利用されてい
る。時計部品や電子部品などの薄い小片の被加工物を両
面同期加工する際には、保持孔のある被加工物より薄い
薄板状の搬送ベルトが前記砥石間に挟んで搬送すること
により加工が可能とされてきた。例えば、特公昭60−24
9563号公報では、第４図に示すように、搬送ベルト23を
エンドレスにして左右のプーリー21,22間に張設し、こ
の搬送ベルト23に被加工物26を遊嵌させ、ガイドレール
27に摺動させながら上下の砥石車24,25に搬送し、加工
を行うという示唆を与えている。また、第５図は特公昭
48−2490号公報に開示されている構成を示すが、ここで
は搬送ベルト32に供給された被加工物33の位置を規正爪
34とガイドレール35で規正し、被加工物33の浮き上がり
や、跳りを防止して砥石への搬送を可能にしている。2. Description of the Related Art In recent years, double-sided surface grinding apparatuses have been used as means for precisely and rapidly grinding various materials such as metal materials and hard and brittle materials such as glass, ceramic, and quartz. When performing double-sided synchronous processing of thin small workpieces such as watch parts and electronic components, processing can be performed by transporting a thin plate-like transport belt that is thinner than the workpiece with holding holes between the grinding wheels. And has been. For example, Japanese Patent Publication No. 60-24
In the publication No. 9563, as shown in FIG. 4, the conveyor belt 23 is endlessly stretched between the left and right pulleys 21 and 22, and the workpiece 26 is loosely fitted on the conveyor belt 23, and the guide rail is provided.
It is suggested that the workpiece is conveyed to the upper and lower grinding wheels 24 and 25 while being slid on 27 to be processed. Fig. 5 is
The configuration disclosed in Japanese Patent Publication No. 48-2490 is shown.
The workpiece 33 is lifted up or jumped, and transported to the grindstone is enabled by regulating with the guide rail 35 and the guide rail 35.
発明が解決しようとする課題 ところが、上記のような構成では薄板状の搬送ベルト
の位置決めが消極的であるため、研削抵抗の変動や砥石
車の駆動部の振動により搬送ベルトが振動したり変形し
たりすると、上下の砥石面と干渉し搬送ベルトも研削さ
れ、搬送ベルトを著しく短命にしてしまうという問題点
を有していた。Problems to be Solved by the Invention However, in the above-described configuration, since the positioning of the thin-plate-shaped conveyance belt is passive, the conveyance belt is vibrated or deformed due to fluctuation of grinding resistance or vibration of the drive unit of the grinding wheel. In such a case, there is a problem that the conveyor belt is ground due to interference with the upper and lower grindstone surfaces, and the conveyor belt is remarkably short-lived.
また、被加工物の供給方式として、第６図に示すよう
に、被加工物を自由落下方式により搬送ベルト42の保持
孔に挿入する案内シュート44を設けたものが知られてい
るが、現実には研削中に研削液が上下の砥石40,41の遠
心力により噴出し、ガイドレール45を伝わって前記案内
ショート44に浸透し被加工物の移送を防害するという問
題点があった。Further, as a method of supplying a workpiece, as shown in FIG. 6, there is known a method in which a guide chute 44 for inserting a workpiece into a holding hole of a conveyor belt 42 by a free fall method is provided. There is a problem in that the grinding fluid is spouted by the centrifugal force of the upper and lower whetstones 40 and 41 during grinding, and penetrates the guide short 45 and penetrates into the guide short 44 to prevent the transfer of the workpiece.
本発明は上記問題点に鑑み、薄板状搬送ベルト位置を
積極的に位置決めし、あわせて被加工物の高さも規正し
て、薄板状搬送ベルトの研削を防止するとともに、被加
工物の供給トラブルを防止して連続自動化を実現できる
両頭平面研削装置の提供を目的とする。In view of the above-mentioned problems, the present invention positively positions the position of the sheet-shaped conveyance belt, and also regulates the height of the work to prevent grinding of the sheet-shaped conveyance belt. It is an object of the present invention to provide a double-sided surface grinding device capable of realizing continuous automation by preventing the occurrence of pitting.
課題を解決するための手段 上記問題点を解決するために本発明の両頭平面研削装
置は砥石車の出入口附近で搬送ベルトの高さを位置決め
する機構と前記被加工物の搬送高さを位置決めする機構
とを備えたことを特徴とする。Means for Solving the Problems In order to solve the above problems, the double-sided surface grinding apparatus of the present invention positions the mechanism for positioning the height of the conveyor belt near the entrance and exit of the grinding wheel and positions the conveyor height of the workpiece. And a mechanism.
さらに好ましくは、搬送ベルトに被加工物を供給する
案内シュートの先端の外周に気体噴出機構を設けた構成
とする。More preferably, a gas ejection mechanism is provided on the outer periphery of the tip of the guide chute for supplying the workpiece to the transport belt.
作用 本発明は上記した構成によって、砥石の出入口附近に
設けた搬送ベルトの高さを位置決めする機構により、搬
送ベルトを砥石端面に干渉しない高さに位置決めして、
あたかも最短距離で搬送ベルトが張設されたようにする
ので、砥石が搬送ベルトを研削するのを防止できる。Function The present invention, by the above-described configuration, by a mechanism for positioning the height of the conveyor belt provided near the entrance and exit of the grindstone, by positioning the conveyor belt at a height that does not interfere with the end face of the grindstone,
Since the conveyor belt is stretched at the shortest distance, it is possible to prevent the grindstone from grinding the conveyor belt.
一方、砥石から噴出された研削液は案内シュート先端
の外周に設けられた気体噴出機構により、案内シュート
内部への浸透を阻止され、案内シュート内の通路は常に
乾燥状態を保ち、案内シュート内壁への密着等による供
給トラブルを防止できる。On the other hand, the grinding fluid ejected from the grindstone is prevented from penetrating into the guide chute by the gas ejection mechanism provided on the outer periphery of the guide chute tip, the passage in the guide chute is always kept dry, Supply troubles due to close contact of the product can be prevented.
実 施 例 以下本発明の実施例の両頭平面研削装置について、図
面を参照しながら説明する。Embodiment Hereinafter, a double-sided surface grinding apparatus according to an embodiment of the present invention will be described with reference to the drawings.
第１〜第３図は、本発明の実施例における両頭平面研
削装置を示すものである。第１図において、駆動プーリ
１とテンションプーリ２で張設された搬送ベルト３は被
加工物６を遊嵌できる保持孔3aの列を有し、矢印Ａの方
向に前記駆動プーリ１が回転すると矢印Ｂの方向に移送
される。また前記搬送ベルト３は回転可能な上砥石車４
とこれに対向する回転可能な下砥石車との間を通るよう
に張設されている。この搬送ベルト３の上下面にはこれ
に平行して被加工物６を摺動させながら移送するための
ガイドレール７と被加工物の高さを規正する規正爪８が
配置されている。一方、第２図に搬送ベルト３の周辺の
断面図を示したように回転可能な上，下ローラ9,10はそ
れぞれの軸13a,13bにて支持され、かつバネ12によって
互いに引張されている。軸13aは固定で、軸13bは前記ガ
イドレール７に固定された軸13cを中心として揺動可能
なアーム14に保持されており、上ローラ９と下ローラ10
とが搬送ベルト３の両側端を挟持し高さを位置決めして
いる。この位置決め手段は砥石の出入り口両側に配置さ
れている。さらに被加工物６を供給する自由落下方式の
案内シュート11を設け、搬送ベルト３に被加工物６を１
つずつ供給可能な位置に設置している。前記案内シュー
ト11には、第３図に示すように、矢印Ｅの方向から供給
された圧搾気体が、前記案内シュート11の外周に形成さ
れた気体噴出ノズル11aから噴出するように構成されて
いる。FIGS. 1 to 3 show a double-sided surface grinding apparatus according to an embodiment of the present invention. In FIG. 1, a conveyor belt 3 stretched by a drive pulley 1 and a tension pulley 2 has a row of holding holes 3a into which a workpiece 6 can be loosely fitted, and when the drive pulley 1 rotates in the direction of arrow A, It is transported in the direction of arrow B. The transport belt 3 is a rotatable upper grinding wheel 4.
And a rotatable lower grinding wheel opposed thereto. On the upper and lower surfaces of the conveyor belt 3, a guide rail 7 for transferring the workpiece 6 while sliding the same in parallel with the transport belt 3 and a setting claw 8 for adjusting the height of the workpiece are arranged. On the other hand, as shown in the sectional view of the periphery of the conveyor belt 3 in FIG. 2, the rotatable upper and lower rollers 9, 10 are supported by respective shafts 13a, 13b and are pulled together by a spring 12. . The shaft 13a is fixed, and the shaft 13b is held by an arm 14 that can swing about a shaft 13c fixed to the guide rail 7, and the upper roller 9 and the lower roller 10
And n are positioned on both sides of the conveyor belt 3 to determine the height. This positioning means is arranged on both sides of the entrance of the grindstone. Further, a free fall type guide chute 11 for supplying the workpiece 6 is provided.
They are installed at locations where they can be supplied one by one. As shown in FIG. 3, the guide chute 11 is configured such that a compressed gas supplied from the direction of arrow E is jetted from a gas jet nozzle 11 a formed on the outer periphery of the guide chute 11. .
以上のように構成された両頭平面研削装置について、
以下動作を説明する。About the double-sided surface grinding device configured as above,
The operation will be described below.
第１図において、適切な間隔をおいて対向して固定さ
れた上下砥石車4.5を図には示さないが駆動手段を用い
て回転させ、適切な送り速度を満足する回転速度で駆動
プーリー１を作動させることにより張設された搬送ベル
ト３は案内シュート11で１つずつ供給された被加工物６
を、ガイドレール７と規正爪８に摺動させながら前記上
下の砥石車4,5の間に移送する。このとき上，下の砥石
車4,5の遠心力で研削液がガイドレール７に沿って流出
してくるが、案内シュート11の外周に設けられた気体噴
出ノズル11aにより前記案内シュート11の被加工物の通
路には浸入しない。一方、搬送ベルト３は上下砥石車３
の出入口附近で上下ローラ9,10により高さを位置決めさ
れ、搬送ベルト３の振動振幅やたわみが矯正され、従来
の問題であった搬送ベルト３の研削を防止できる。In FIG. 1, the upper and lower grinding wheels 4.5, which are fixed to face each other at appropriate intervals, are rotated using a drive means (not shown), and the drive pulley 1 is rotated at a rotational speed satisfying an appropriate feed speed. The conveyor belt 3 stretched by operating the workpiece 6 is supplied one by one by a guide chute 11.
Is transferred between the upper and lower grinding wheels 4 and 5 while sliding the guide rail 7 and the setting claw 8. At this time, the grinding fluid flows out along the guide rail 7 due to the centrifugal force of the upper and lower grinding wheels 4, 5, but is covered by the gas ejection nozzle 11 a provided on the outer periphery of the guide chute 11. It does not penetrate the work passages. On the other hand, the transport belt 3 is a vertical grinding wheel 3
The height is positioned by the upper and lower rollers 9 and 10 near the entrance and exit of the conveyor belt, the vibration amplitude and the deflection of the conveyor belt 3 are corrected, and the grinding of the conveyor belt 3 which is a conventional problem can be prevented.
なお、実施例には、搬送ベルト３の高さを位置決め手
段として搬送ベルト３を挟持するようにローラ9,10を設
けたが、これは摺動面のある固定爪に代えてもよい。In the embodiment, the rollers 9 and 10 are provided so as to sandwich the conveyor belt 3 by using the height of the conveyor belt 3 as positioning means, but this may be replaced by a fixed claw having a sliding surface.
発明の効果 以上のように本発明は、砥石車の出入口附近で搬送ベ
ルトの高さを位置決めする機構と被加工物の搬送高さを
位置決めする機構を備えたことにより、前記搬送ベルト
のそり、たわみ，歪み，機械振動等による砥石との干渉
を防止し、被加工物のみならず、搬送ベルト表面も研削
されるという問題点を回避でき、定期的に交換していた
搬送ベルトの寿命を著しく延長できる。Effect of the Invention As described above, the present invention includes a mechanism for positioning the height of the conveyor belt near the entrance and exit of the grinding wheel and a mechanism for positioning the conveyor height of the workpiece, the warp of the conveyor belt, Prevents interference with the grindstone due to deflection, distortion, mechanical vibration, etc., avoids the problem of grinding not only the workpiece, but also the surface of the conveyor belt, and significantly increases the life of the conveyor belt that has been regularly replaced. Can be extended.
さらに、被加工物を１つずつ前記搬送ベルトに供給す
る案内シュート先端の外周に内面から気体噴出する機構
を設けることによって、流出した研削液が前記シュート
の通路に浸入することを防止でき、被加工物の目づまり
等のトラブルを防止できる。これらの結果により薄板状
小片の被加工物用連続自動両頭平面研削装置を実現でき
大なる効果を発揮する。Further, by providing a mechanism for ejecting gas from the inner surface at the outer periphery of the guide chute for supplying the workpieces one by one to the conveyor belt, it is possible to prevent the outflow of the grinding fluid from entering the passage of the chute. Troubles such as clogging of the workpiece can be prevented. Based on these results, it is possible to realize a continuous automatic double-sided surface grinding device for a workpiece of a thin plate-like piece, and to exert a great effect.
第１図〜第３図は本発明の一実施例における両頭平面研
削装置を示し、第１図は要部の正面図、第２図は部分断
面側面図、第３図は他の部分断面正面図、第４図〜第６
図は従来の両頭平面研削装置を示し、第４図は要部の正
面図、第５図，第６図は各々の部分断面正面図である。 ３……搬送ベルト、４……上砥石車、５……下砥石車、
６……被加工物、７……ガイドレール、８……規正爪、
９……上ローラ、10……下ローラ、11……案内シュー
ト、11a……気体噴出ノズル。1 to 3 show a double-sided surface grinding apparatus according to an embodiment of the present invention. FIG. 1 is a front view of a main part, FIG. 2 is a partial sectional side view, and FIG. 3 is another partial sectional front view. Figures, FIGS. 4-6
FIG. 1 shows a conventional double-sided surface grinding apparatus, FIG. 4 is a front view of a main part, and FIGS. 5 and 6 are partial cross-sectional front views of respective parts. 3 ... conveyor belt, 4 ... upper grinding wheel, 5 ... lower grinding wheel,
6 Workpiece, 7 Guide rail, 8 Setting claw,
9: Upper roller, 10: Lower roller, 11: Guide chute, 11a: Gas ejection nozzle.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 馬屋原 潔 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (72)発明者 新宮 克喜 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 特開 昭60−249563（ＪＰ，Ａ) 特開 昭48−2490（ＪＰ，Ａ) ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kiyoshi Mayahara 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. In-house (56) References JP-A-60-249563 (JP, A) JP-A-48-2490 (JP, A)
Claims (2)
砥石車を設けて、被加工物の両端面を同時に研削する際
に、前記砥石車の出入口付近で前記搬送ベルトの高さを
位置決めする機構と、前記被加工物の搬送高さを位置決
めする機構を備えたことを特徴とする両頭平面研削装
置。A grinding wheel is provided up and down with a conveyor belt of a workpiece interposed therebetween, and when simultaneously grinding both end surfaces of the workpiece, the height of the conveyor belt is adjusted near the entrance and exit of the grinding wheel. A double-sided surface grinding apparatus comprising a mechanism for positioning and a mechanism for positioning the conveying height of the workpiece.
ート先端の外周に気体噴出機構を設けた請求項１記載の
両頭平面研削装置。2. A double-sided surface grinding apparatus according to claim 1, wherein a gas ejection mechanism is provided on an outer periphery of a tip of a guide chute for supplying a workpiece to the conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15319288A JP2615864B2 (en) | 1988-06-21 | 1988-06-21 | Double head surface grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15319288A JP2615864B2 (en) | 1988-06-21 | 1988-06-21 | Double head surface grinding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01321154A JPH01321154A (en) | 1989-12-27 |
| JP2615864B2 true JP2615864B2 (en) | 1997-06-04 |
Family
ID=15557059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15319288A Expired - Lifetime JP2615864B2 (en) | 1988-06-21 | 1988-06-21 | Double head surface grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2615864B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286650A (en) * | 2013-06-11 | 2013-09-11 | 乳山市宏远机床制造有限公司 | Automatic discharging device for vertical-type double-ended grinding machine |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4751115B2 (en) * | 2005-07-19 | 2011-08-17 | 株式会社岡本工作機械製作所 | Double-side grinding apparatus and double-side grinding method for square substrate |
| JP2010234496A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Metals Ltd | Two-sided surface machining device |
| CN108296912A (en) * | 2018-01-31 | 2018-07-20 | 江苏铭利达科技有限公司 | A kind of shared bicycle seat bar both ends device for grinding of OMO |
-
1988
- 1988-06-21 JP JP15319288A patent/JP2615864B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286650A (en) * | 2013-06-11 | 2013-09-11 | 乳山市宏远机床制造有限公司 | Automatic discharging device for vertical-type double-ended grinding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01321154A (en) | 1989-12-27 |
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