JP3579143B2 - Processing equipment for bow-shaped products - Google Patents

Processing equipment for bow-shaped products Download PDF

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Publication number
JP3579143B2
JP3579143B2 JP25469595A JP25469595A JP3579143B2 JP 3579143 B2 JP3579143 B2 JP 3579143B2 JP 25469595 A JP25469595 A JP 25469595A JP 25469595 A JP25469595 A JP 25469595A JP 3579143 B2 JP3579143 B2 JP 3579143B2
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Japan
Prior art keywords
bow
shaped product
support
shaped
rotary
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JP25469595A
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JPH0974035A (en
Inventor
武久 坂口
昭浩 緒方
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Hitachi Metals Ltd
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Neomax Co Ltd
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  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Hard Magnetic Materials (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)

Description

【0001】
【発明の属する技術分野】
この発明は、フェライト磁石等の各種セラミックス製品の加工装置の改良に係り、特に、弓形形状品の長手方向両端面部における面取り加工や平坦な端面の加工等を経済的に効率よく実施することが可能な弓形形状品の加工装置に関するものである。
【0002】
【従来の技術】
最近では、種々の形状からなるセラミックス製品が多くの技術分野で使用されているが、例えば、弓形形状からなるフェライト焼結磁石は電装品の駆動用モータ等に使用されている。
【0003】
通常、弓形形状からなるフェライト焼結磁石は、圧縮成形、焼成、研磨加工等の製造工程を経て所定の形状、寸法に仕上げられ製品となる。これらの工程のほとんどが生産効率向上のために自動化されているが、焼成後の外周や内周の研磨加工機への搬送供給時や駆動用モータへの組込み作業時等において、該弓形形状フェライト焼結磁石の長手方向端面部のエッジ部に欠けが発生し、形状的な不良を招くだけでなく、前記製造工程時や組込み作業時の作業効率の低下を招くことから、図5に示すように焼成後に速やかに弓形形状フェライト焼結磁石1の長手方向外周端面部に面取り加工を施し、面取り部11を形成することが必要とされていた。
【0004】
以上に示すような弓形形状からなるフェライト焼結磁石の面取り加工装置としては、該フェライト焼結磁石の長手方向外周端面部の一方端面部における面取り部全域に接することが可能な軸方向断面が部分楕円状凹部を有する略円柱状の回転砥石を使用した構成、所謂、総形砥石方式(特開平5−129129号公報、特開平6−314610号公報)が知られている。
【0005】
また、圧縮成形後(焼成前)の面取り加工装置として、圧縮成形体をその内周面において吸引保持して回転するワークホルダーと、このワークホルダーに隣接して回転軸が平行になるように配置され、前記圧縮成形体の外周両端縁部の回転軌跡に進退調節自在に研削面を臨ませて回転駆動される回転砥石とから構成される、所謂、吸引保持方式(特開昭62−199344号公報)等が知られている。
【0006】
【発明が解決しようとする課題】
上記の総形砥石方式においては、面取り加工対象の弓形形状からなるフェライト焼結磁石の形状や寸法に応じて砥石の形状や寸法が必然的に決定されることから、砥石形状が複雑になるだけでなく、汎用性が低く、砥石自体の価格が高騰する問題を有している。
また、総形砥石方式では、フェライト焼結磁石の長手方向外周端面部の両端面部に同時に面取り加工を施すことは困難であり、一方端面部毎に加工することとなり、生産性効率化の観点からは必ずしも望ましい構成ではなかった。
【0007】
また、吸引保持方式においては、面取り加工対象の弓形形状からなるフェライト焼結磁石への吸引力が真空ポンプ等の真空吸引源によって決定されることから該吸引力も必然的に限界があり、フェライト焼結磁石の重量等に対して必ずしも十分な吸引力が得られるとは限らず、特にフェライト焼結磁石とワークホルダーとの互いの当接面(吸着面)の密着が完全でないと、面取り加工中にフェライト焼結磁石がワークホルダーから外れて飛散する等の危険性もある。また、ワークホルダーと真空吸引源との連通接続等によって装置全体が複雑で大型化を招く原因にもなっている。
【0008】
この発明は、以上のような問題点を解決することを目的とするもので、特に、フェライト磁石等の各種セラミックスからなる弓形形状品の長手方向両端面部における面取り加工や平坦な端面の加工等を経済的に効率よく実施することが可能な弓形形状品の加工装置の提供を目的とするものである。
【0009】
【課題を解決するための手段】
本発明者は、上記の目的を達成するために種々の実験を繰り返した結果、加工対象品の支持構成を工夫することによって、例えば、回転する支持体にVベルト等の押圧によって加工対象品を押圧支持する構成を採用することによって、特殊形状の砥石を使用しなくとも、また危険性がなく容易にかつ効率よく目的とする加工を実現できることを確認し、発明を完成したのである。
【0010】
すなわち、この発明は、
外周面に弓形形状品の内周面を当接して支持するとともに、所定方向に回転する弓形形状品支持体と、
一対の回転砥石の各々研磨面が弓形形状品の長手方向両端面部の回転軌跡に対向配置するよう所定間隔を形成して並列配置するとともに、回転軸が前記弓形形状品支持体と平行になるように配置する回転砥石支持体と、
前記弓形形状品支持体と回転砥石支持体及び一対の回転砥石とで囲まれた空間内に、弓形形状品の外周面を弓形形状品支持体方向に押圧する弓形形状品押圧手段とを配置したことを特徴とする弓形形状品の加工装置である。
【0011】
特に、上記の加工装置において、弓形形状品押圧手段が、所定方向に移動するVベルト、平ベルト、ロープ、チェーンのうちいずれかを弓形形状品の外周面に当接する構成からなることを特徴とする加工装置を併せて提案する。
【0012】
また、上記の加工装置において、一対の回転砥石の各々研磨面が、面取り加工をすべく弓形形状品の長手方向両端面部の平坦な端面に対して、所定角度を有していることを特徴とする構成、さらに、一対の回転砥石の各々研磨面が、端面加工をすべく弓形形状品の長手方向両端面部の平坦な端面に対して、平行であることを特徴とする構成からなる加工装置をも併せて提案する。
【0013】
【発明の実施の形態】
この発明の弓形形状品の加工装置を、図1及び図2に示す一実施例に基づいて詳細に説明する。なお、図1は縦断面説明図、図2は部分断面平面説明図である。以下の説明においては、加工対象品となる弓形形状品をフェライト焼結磁石とし、該フェライト焼結磁石の長手方向両端面部の外周面に面取り加工を施すことを目的とした加工装置の例について説明する。
【0014】
1は弓形形状からなるフェライト焼結磁石であり、後から詳述するVベルト3aからなる弓形形状品押圧手段3によって弓形形状品支持体2に支持されている。弓形形状品支持体2の外周面は、フェライト焼結磁石1が加工時に長手方向(図2において左右方向)に移動しないよう段差部21を形成するとともに、フェライト焼結磁石1の内周面に当接する面22は、該フェライト焼結磁石1の内径と同寸法に加工されている。また、弓形形状品支持体2はモータ(図示せず)に連結して図中矢印イ方向に回転している。
【0015】
4a,4bは一対の回転砥石であり、各々の研磨面41a,41bが、フェライト焼結磁石1の長手方向両端面部における面取り部11の回転軌跡に対向配置するよう回転砥石支持体5を介して所定間隔を形成するよう並列配置している。すなわち、回転砥石支持体5は回転砥石4a,4bを外嵌する回転軸51と回転砥石4a,4bの間隔を決定するカラー52及び回転砥石4a,4bの固定用ナット53から構成され、一対の回転砥石4a,4bが加工時に長手方向(図2において左右方向)に移動しないよう支持している。また、回転砥石支持体5の回転軸51と前記弓形形状品支持体2と平行になるように配置されている。なお、回転軸51はモータ(図示せず)に連結して図中矢印ロ方向に回転している。
【0016】
以上に説明した弓形形状品支持体2と回転砥石支持体5及び一対の回転砥石4a,4bとで囲まれた空間A内に、フェライト焼結磁石1の外周面を弓形形状品支持体2方向に押圧するVベルトからなる弓形形状品押圧手段3を配置している。
Vベルト3aは、モータ(図示せず)に連結して図中矢印ハ方向に回転する駆動用溝車6及び従動用溝車7a,7b,7cによって所定速度で図中矢印ニ方向に移動するとともに、従動用溝車7a,7bの位置(図1において左右方向の位置)調整によってフェライト焼結磁石1の外周面への押圧力を制御し、結果として回転するフェライト焼結磁石1を弓形形状品支持体2に押圧支持することができる。
【0017】
ここで、駆動用溝車6と弓形形状品支持体2が同期回転するよう各々に連結するモータの回転速度を調整することによって、フェライト焼結磁石1が弓形形状品支持体2上で滑り等を発生しないようにすることが望ましい。
【0018】
以上の構成からなる加工装置において、弓形形状からなるフェライト焼結磁石1の長手方向両端面部の外周面に面取り加工を施す場合は、まず、フェライト焼結磁石1を搬送ライン8によって弓形形状品支持体2方向に所定間隔毎に送り込む。図中81は搬送用レール、82は搬送用ガイド側板、83は搬送用プッシャーである。
【0019】
さらに、上記のフェライト焼結磁石1は、弓形形状品支持体2の上方に延出する板ばね等からなる案内弾性板9によって弓形形状品支持体2上に案内されると弓形形状品支持体2の回転にともない、図中矢印ホ方向に回転するとともに、前記Vベルト3aによる弓形形状品押圧手段3によって弓形形状品支持体2に支持されながら移動する。
【0020】
この際、予め一対の回転砥石4a,4bの各々研磨面41a,41bがフェライト焼結磁石1の長手方向両端面外周部の回転軌跡に対向配置するよう所定間隔を形成して並列配置していることから、該フェライト焼結磁石1が回転砥石4a,4b間を通過することによって長手方向両端面部の外周面に面取り加工が施される。
面取り加工が施されたフェライト焼結磁石1は、弓形形状品支持体2の下方に延出する合成樹脂等からなる傾斜シュート10上に落下し、次工程に搬送される。
【0021】
以上の説明においては、弓形形状品押圧手段3としてVベルト3aを採用した構成にて説明したが、弓形形状品の寸法や重量等に応じて、平ベルト、ロープ、チェーン等を使用することも可能である。いずれにしても、これらの弓形形状品押圧手段は、弓形形状品支持体2と回転砥石支持体5及び一対の回転砥石4a,4bとで囲まれた空間Aを利用して配置され、弓形形状品の外周面を弓形形状品支持体方向に押圧する構成であれば、図示の構成に限定されず、種々の構成を採用することが可能である。
【0022】
また、以上の説明においては、駆動用溝車6と弓形形状品支持体2との各々に独立してモータを連結する構成にて説明したが、歯車等の伝動装置を効果的に配置することによって、一つのモータのみで、目的とする回転駆動を実現することも可能である。さらに、一対の回転砥石4a,4bの回転砥石支持体5への取付固定構成、弓形形状品の搬送ライン構成等も同様に図示の構成に限定されず、種々の構成を採用することが可能である。
【0023】
図3及び図4はこの発明の他の実施例であり、特に一対の回転砥石4a,4bの研磨面の形状によって弓形形状品1の長手方向両端面部を所定の形状に加工する構成を示している。図3の場合は、弓形形状品1の長手方向両端面部を平坦面12に研磨するために一対の回転砥石4a,4bの研磨面を平坦面42a,42bとした構成である。
図4の場合は、弓形形状品1の長手方向両端面部に平坦面12と面取り部11を形成するために一対の回転砥石4a,4bの研磨面をそれぞれ平坦面42a,42bと面取り部研磨面41a,41bからなるように構成したものである。図中2は弓形形状品支持体であり、3はVベルトからなる弓形形状品押圧手段である。これらの構成においても、図1及び図2に示す構成と同様な作動原理によって、容易に弓形形状品の長手方向両端面部を所定形状に加工することが可能となる。
【0024】
【実施例】
図1及び図2に示す構成からなる本発明の加工装置によって、外径64.7mm×内径50.8mm×長さ(長手方向の寸法)34.2mm×幅(長手方向に直交する方向の最大寸法)57.5mmの弓形形状からなるフェライト焼結磁石(10万個)の長手方向両端面部の外周面にC1.5の面取り加工を施した結果、全数においてチッピング等を発生することなく良好な面取り部を形成することができた。なお、回転砥石としては公知のダイヤモンドホイールを使用した。
【0025】
【発明の効果】
以上に説明するように、本発明の弓形形状品の加工装置においては、砥石の形状も簡単であり、加工時の加工対象品の支持や搬送を極めて簡単な構成にて実現することから、加工装置全体としても小型で簡単な構成となり、しかも連続的に加工も可能であることから、特に、フェライト磁石等の各種セラミックスからなる弓形形状品の長手方向両端面部における面取り加工や平坦な端面の加工等を経済的に効率よく実施することが可能となる。
【図面の簡単な説明】
【図1】この発明の弓形形状品の加工装置の一実施例を示す縦断面説明図である。
【図2】図1の一部断面平面説明図である。
【図3】この発明の他の実施例を示す平面説明図である。
【図4】この発明の他の実施例を示す平面説明図である。
【図5】弓形形状からなるフェライト焼結磁石の斜視説明図である。
【符号の説明】
1 フェライト焼結磁石
2 弓形形状品支持体
3 弓形形状品押圧手段
3a Vベルト
4a,4b 回転砥石
5 回転砥石支持体
6 駆動用溝車
7a,7b,7c 従動用溝車
8 搬送ライン
9 案内弾性板
10 傾斜シュート
11 面取り部
12 平坦面
21 段差部
22 面
41a,41b 研磨面
42a,42b 平坦面
51 回転軸
52 カラー
53 固定用ナット
81 搬送用レール
82 搬送用ガイド側板
83 搬送用プッシャー
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in an apparatus for processing various ceramic products such as ferrite magnets, and in particular, it is possible to economically and efficiently perform chamfering and flat end processing on both end surfaces in the longitudinal direction of a bow-shaped product. The present invention relates to an apparatus for processing a bow-shaped product.
[0002]
[Prior art]
Recently, ceramic products having various shapes have been used in many technical fields. For example, sintered ferrite magnets having an arc shape are used for motors for driving electric components and the like.
[0003]
Usually, a sintered ferrite magnet having an arcuate shape is finished into a predetermined shape and dimensions through a manufacturing process such as compression molding, firing, and polishing, and becomes a product. Most of these processes are automated to improve production efficiency. However, when the outer periphery or inner periphery after firing is conveyed and supplied to a polishing machine or when assembled into a drive motor, the bow-shaped ferrite is used. Chipping occurs at the edge of the longitudinal end face of the sintered magnet, which not only causes a shape defect, but also lowers the work efficiency during the manufacturing process and the assembling operation, as shown in FIG. After the firing, it is required that the chamfered portion 11 be formed by immediately performing a chamfering process on the outer peripheral end face in the longitudinal direction of the bow-shaped ferrite sintered magnet 1.
[0004]
As a chamfering apparatus for a ferrite sintered magnet having an arcuate shape as described above, an axial cross-section that can be in contact with the entire chamfered area at one end face of the longitudinally outer end face of the ferrite sintered magnet is partially formed. A configuration using a substantially cylindrical rotary grindstone having an elliptical recess, that is, a so-called full-shape grindstone method (Japanese Patent Laid-Open Nos. 5-129129 and 6-314610) is known.
[0005]
Further, as a chamfering apparatus after compression molding (before firing), a work holder which rotates while suction-holding the compression molded body on its inner peripheral surface, and a rotation axis which is adjacent to the work holder and arranged in parallel. A so-called suction holding system (Japanese Patent Application Laid-Open No. 62-199344), which comprises a rotary grindstone driven to rotate with its grinding surface facing the rotational trajectory of the outer peripheral both ends of the compression molded body so as to advance and retreat freely. Gazettes) are known.
[0006]
[Problems to be solved by the invention]
In the above-mentioned grinding wheel method, since the shape and dimensions of the grinding wheel are inevitably determined according to the shape and dimensions of the ferrite sintered magnet having an arcuate shape to be chamfered, the grinding wheel shape is only complicated. In addition, there is a problem that the versatility is low and the price of the grindstone itself rises.
In addition, in the case of the general grinding wheel method, it is difficult to perform chamfering simultaneously on both end surfaces of the ferrite sintered magnet in the longitudinal direction outer peripheral end surface portion. Was not always a desirable configuration.
[0007]
Further, in the suction holding method, since the suction force to the arcuate ferrite sintered magnet to be chamfered is determined by a vacuum suction source such as a vacuum pump, the suction force is inevitably limited. Sufficient attractive force is not always obtained with respect to the weight of the magnet, especially if the contact surface (adsorption surface) between the ferrite sintered magnet and the work holder is not completely adhered, chamfering In addition, there is a danger that the ferrite sintered magnet comes off the work holder and scatters. Also, the communication connection between the work holder and the vacuum suction source or the like causes the entire apparatus to be complicated and large.
[0008]
The present invention has been made to solve the above-described problems, and in particular, includes chamfering and flat end processing at both longitudinal end portions of an arcuate product made of various ceramics such as ferrite magnets. An object of the present invention is to provide an apparatus for processing a bow-shaped product that can be implemented economically and efficiently.
[0009]
[Means for Solving the Problems]
The present inventor has repeated various experiments to achieve the above object, and as a result, by devising a support structure of the object to be processed, for example, pressing the object to be processed by pressing a V-belt or the like on a rotating support. By adopting the configuration for supporting by pressing, it has been confirmed that the intended processing can be easily and efficiently achieved without danger without using a grindstone having a special shape, and the invention was completed.
[0010]
That is, the present invention
While supporting and supporting the inner peripheral surface of the bow-shaped product on the outer peripheral surface, a bow-shaped product support that rotates in a predetermined direction,
A predetermined interval is formed so that the polished surfaces of the pair of rotary grindstones are disposed opposite to the rotation trajectories of both longitudinal end portions of the arcuate product, and the polishing wheels are arranged in parallel, and the rotation axis is parallel to the arcuate product support. A grinding wheel support to be placed on the
An arc-shaped product pressing means for pressing the outer peripheral surface of the arc-shaped product in the direction of the arc-shaped product support is disposed in a space surrounded by the arc-shaped product support, the rotary grindstone support and the pair of rotary grindstones. An apparatus for processing a bow-shaped product, characterized in that:
[0011]
In particular, in the above-described processing apparatus, the bow-shaped product pressing means is configured to contact one of a V-belt, a flat belt, a rope, and a chain moving in a predetermined direction with the outer peripheral surface of the bow-shaped product. We also propose a processing device to perform.
[0012]
Further, in the above-described processing apparatus, each of the polishing surfaces of the pair of rotary grindstones has a predetermined angle with respect to the flat end surfaces of both longitudinal end surfaces of the bow-shaped product for chamfering. Configuration, further, each polishing surface of a pair of rotary grindstones, a processing device having a configuration characterized by being parallel to the flat end surfaces of both longitudinal end portions of the bow-shaped product for end processing. We also propose.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
An apparatus for processing a bow-shaped article according to the present invention will be described in detail based on an embodiment shown in FIGS. FIG. 1 is a vertical sectional view, and FIG. 2 is a partial sectional plan view. In the following description, an example of a processing apparatus for the purpose of performing a chamfering process on the outer peripheral surfaces of both end portions in the longitudinal direction of the ferrite sintered magnet is described as an arc-shaped product to be processed is a ferrite sintered magnet. I do.
[0014]
Numeral 1 is a bow-shaped ferrite sintered magnet, which is supported on a bow-shaped product support 2 by a bow-shaped product pressing means 3 composed of a V-belt 3a described later in detail. The outer peripheral surface of the bow-shaped article support 2 forms a stepped portion 21 so that the ferrite sintered magnet 1 does not move in the longitudinal direction (left-right direction in FIG. 2) at the time of processing, and the inner peripheral surface of the ferrite sintered magnet 1 is formed. The contact surface 22 is machined to the same size as the inner diameter of the sintered ferrite magnet 1. The bow-shaped article support 2 is connected to a motor (not shown) and rotates in the direction of arrow a in the figure.
[0015]
Reference numerals 4a and 4b denote a pair of rotary grindstones, and each of the polished surfaces 41a and 41b is interposed via the rotary grindstone support 5 so as to face the rotation locus of the chamfered portion 11 at both longitudinal end surfaces of the sintered ferrite magnet 1. They are arranged in parallel so as to form a predetermined interval. That is, the rotary grinding wheel support 5 is composed of a rotary shaft 51 for externally fitting the rotary grinding wheels 4a and 4b, a collar 52 for determining an interval between the rotary grinding wheels 4a and 4b, and a nut 53 for fixing the rotary grinding wheels 4a and 4b. The rotating grindstones 4a and 4b are supported so as not to move in the longitudinal direction (the horizontal direction in FIG. 2) during processing. The rotating shaft 51 of the rotating grindstone support 5 and the arcuate product support 2 are arranged in parallel. The rotating shaft 51 is connected to a motor (not shown) and rotates in the direction of arrow B in the figure.
[0016]
In the space A surrounded by the above-described arcuate product support 2, the rotary grindstone support 5, and the pair of rotary grindstones 4a and 4b, the outer peripheral surface of the ferrite sintered magnet 1 is moved in the direction of the arcuate product support 2 An arc-shaped article pressing means 3 composed of a V-belt that presses against the object is disposed.
The V-belt 3a is connected to a motor (not shown) and moves in a direction indicated by an arrow D at a predetermined speed by a driving sheave 6 and driven sheaves 7a, 7b, 7c which rotate in a direction indicated by an arrow C in the figure. At the same time, the pressing force on the outer peripheral surface of the sintered ferrite magnet 1 is controlled by adjusting the positions of the driven sheaves 7a and 7b (positions in the horizontal direction in FIG. 1), and as a result, the rotating ferrite sintered magnet 1 is formed into an arcuate shape. It can be pressed and supported on the article support 2.
[0017]
Here, by adjusting the rotation speed of the motor connected to each other so that the driving sheave 6 and the bow-shaped article support 2 rotate synchronously, the sintered ferrite magnet 1 slides on the bow-shaped article support 2 or the like. It is desirable not to cause the occurrence.
[0018]
In the processing apparatus having the above-described configuration, when performing chamfering on the outer peripheral surfaces of both end portions in the longitudinal direction of the ferrite sintered magnet 1 having the arc shape, first, the ferrite sintered magnet 1 is supported by the transfer line 8 in an arc shape. It is fed at predetermined intervals in the body 2 direction. In the drawing, reference numeral 81 denotes a transfer rail, 82 denotes a transfer guide side plate, and 83 denotes a transfer pusher.
[0019]
Further, when the above-mentioned sintered ferrite magnet 1 is guided on the bow-shaped article support 2 by a guide elastic plate 9 formed of a leaf spring or the like extending above the bow-shaped article support 2, the bow-shaped article support is formed. In accordance with the rotation of 2, it rotates in the direction of arrow E in the figure and moves while being supported by the bow-shaped article support 2 by the bow-shaped article pressing means 3 by the V-belt 3 a.
[0020]
At this time, the polishing surfaces 41a and 41b of the pair of rotary grindstones 4a and 4b are arranged in parallel at predetermined intervals so that the polishing surfaces 41a and 41b are opposed to the rotational trajectories of the outer peripheral portions of both ends in the longitudinal direction of the ferrite sintered magnet 1. Therefore, the ferrite sintered magnet 1 passes between the rotary grindstones 4a and 4b, so that the outer peripheral surfaces of both end surfaces in the longitudinal direction are chamfered.
The chamfered sintered ferrite magnet 1 falls on an inclined chute 10 made of a synthetic resin or the like extending below the bow-shaped article support 2 and is conveyed to the next step.
[0021]
In the above description, the configuration in which the V-belt 3a is employed as the bow-shaped product pressing means 3 has been described, but a flat belt, a rope, a chain, or the like may be used according to the size, weight, etc. of the bow-shaped product. It is possible. In any case, these bow-shaped article pressing means are arranged using the space A surrounded by the bow-shaped article support 2, the rotary grindstone support 5, and the pair of rotary grindstones 4a, 4b. The configuration is not limited to the illustrated configuration, and various configurations can be adopted as long as the configuration is such that the outer peripheral surface of the product is pressed toward the bow-shaped product support.
[0022]
Further, in the above description, the configuration has been described in which the motor is independently connected to each of the driving sheave 6 and the arcuate-shaped article support 2. However, the transmission device such as a gear is effectively arranged. Accordingly, it is also possible to realize a target rotational drive with only one motor. Further, the configuration of fixing the pair of rotary grinding wheels 4a and 4b to the rotary grinding wheel support 5 and the configuration of the transport line for the bow-shaped product are not limited to the illustrated configurations, and various configurations can be adopted. is there.
[0023]
FIGS. 3 and 4 show another embodiment of the present invention, particularly showing a configuration in which both ends in the longitudinal direction of the bow-shaped product 1 are machined into a predetermined shape by the shape of the polished surfaces of the pair of rotary whetstones 4a and 4b. I have. In the case of FIG. 3, the polishing surfaces of the pair of rotary grindstones 4a and 4b are flat surfaces 42a and 42b in order to polish both end portions in the longitudinal direction of the bow-shaped product 1 into flat surfaces 12.
In the case of FIG. 4, in order to form the flat surface 12 and the chamfered portion 11 at both end portions in the longitudinal direction of the bow-shaped product 1, the polishing surfaces of the pair of rotary grindstones 4a and 4b are respectively replaced by the flat surfaces 42a and 42b and the chamfered polishing surface. 41a and 41b. In the figure, reference numeral 2 denotes an arc-shaped article support, and 3 denotes an arc-shaped article pressing means formed of a V-belt. Also in these configurations, it is possible to easily process both end portions in the longitudinal direction of the bow-shaped product into a predetermined shape by the same operation principle as the configuration shown in FIGS.
[0024]
【Example】
With the processing apparatus of the present invention having the configuration shown in FIGS. 1 and 2, the outer diameter is 64.7 mm, the inner diameter is 50.8 mm, the length (dimension in the longitudinal direction) is 34.2 mm, and the width is the maximum in the direction orthogonal to the longitudinal direction. (Dimensions) As a result of performing C1.5 chamfering on the outer peripheral surfaces of both end faces in the longitudinal direction of a sintered ferrite magnet (100,000 pieces) having a bow shape of 57.5 mm, no chipping or the like occurs in all of the magnets. A chamfer could be formed. In addition, a known diamond wheel was used as a rotating grindstone.
[0025]
【The invention's effect】
As described above, in the bow-shaped product processing apparatus of the present invention, the shape of the grindstone is also simple, and the support and transport of the product to be processed at the time of processing are realized with an extremely simple configuration. Since the entire device has a small and simple structure and can be continuously processed, it is especially useful for chamfering and flat end processing on both longitudinal end surfaces of bow-shaped products made of various ceramics such as ferrite magnets. Etc. can be implemented economically and efficiently.
[Brief description of the drawings]
FIG. 1 is an explanatory longitudinal sectional view showing an embodiment of an apparatus for processing a bow-shaped product according to the present invention.
FIG. 2 is a partial cross-sectional plan view of FIG.
FIG. 3 is an explanatory plan view showing another embodiment of the present invention.
FIG. 4 is an explanatory plan view showing another embodiment of the present invention.
FIG. 5 is an explanatory perspective view of a sintered ferrite magnet having an arcuate shape.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ferrite sintered magnet 2 Bow-shaped article support 3 Bow-shaped article pressing means 3a V-belt 4a, 4b Rotary grindstone 5 Rotary grindstone support 6 Drive sheaves 7a, 7b, 7c Follower sheave 8 Transport line 9 Guide elasticity Plate 10 Inclined chute 11 Chamfered portion 12 Flat surface 21 Step portion 22 Surface 41a, 41b Polished surface 42a, 42b Flat surface 51 Rotating shaft 52 Collar 53 Fixing nut 81 Transfer rail 82 Transfer guide side plate 83 Transfer pusher

Claims (4)

外周面に弓形形状品の内周面を当接して支持するとともに所定方向に回転する弓形形状品支持体と、一対の回転砥石の各々研磨面が弓形形状品の長手方向両端面部の回転軌跡に対向配置するよう所定間隔を形成して並列配置するとともに回転軸が前記弓形形状品支持体と平行になるように配置する回転砥石支持体と、前記弓形形状品支持体と回転砥石支持体及び一対の回転砥石とで囲まれた空間内に、弓形形状品の外周面を弓形形状品支持体方向に押圧する弓形形状品押圧手段とを配置した弓形形状品の加工装置。An arc-shaped product support that contacts and supports the inner peripheral surface of the arc-shaped product on the outer peripheral surface and rotates in a predetermined direction, and each of the polished surfaces of the pair of rotating grindstones has a rotation locus on both longitudinal end surfaces of the arc-shaped product. A rotating grindstone support that is arranged in parallel with a predetermined interval so as to be opposed to each other and whose rotation axis is arranged so as to be parallel to the arcuate-shaped article support; And a bow-shaped product pressing means for pressing the outer peripheral surface of the bow-shaped product in the direction of the bow-shaped product support in a space surrounded by the rotary whetstone. 請求項1において、弓形形状品押圧手段が、所定方向に移動するVベルト、平ベルト、ロープ、チェーンのうちいずれかを弓形形状品の外周面に当接する構成からなる弓形形状品の加工装置。2. The apparatus according to claim 1, wherein the bow-shaped product pressing means contacts one of a V-belt, a flat belt, a rope, and a chain moving in a predetermined direction with an outer peripheral surface of the bow-shaped product. 請求項1において、一対の回転砥石の各々研磨面が、面取り加工をすべく弓形形状品の長手方向両端面部の平坦な端面に対して、所定角度を有している弓形形状品の加工装置。2. The apparatus according to claim 1, wherein each of the polished surfaces of the pair of rotary grindstones has a predetermined angle with respect to a flat end surface at both ends in the longitudinal direction of the bow-shaped product for chamfering. 請求項1において、一対の回転砥石の各々研磨面が、端面加工をすべく弓形形状品の長手方向両端面部の平坦な端面に対して、平行である弓形形状品の加工装置。2. The apparatus according to claim 1, wherein the polishing surfaces of the pair of rotary grindstones are parallel to flat end surfaces at both longitudinal end surfaces of the arcuate product for edge processing.
JP25469595A 1995-09-05 1995-09-05 Processing equipment for bow-shaped products Expired - Fee Related JP3579143B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25469595A JP3579143B2 (en) 1995-09-05 1995-09-05 Processing equipment for bow-shaped products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25469595A JP3579143B2 (en) 1995-09-05 1995-09-05 Processing equipment for bow-shaped products

Publications (2)

Publication Number Publication Date
JPH0974035A JPH0974035A (en) 1997-03-18
JP3579143B2 true JP3579143B2 (en) 2004-10-20

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Publication number Priority date Publication date Assignee Title
CN103769980B (en) * 2013-12-31 2017-02-15 重庆凌达磁材科技有限公司 Production line for grinding of tile-shaped magnet
CN108188859A (en) * 2017-12-18 2018-06-22 重庆丰胜天家具有限公司 For the chamfer machining technique of stone material
CN109623548B (en) * 2018-12-14 2024-04-12 苏珀新材料技术衡水有限公司 Polishing and chamfering integrated machine for processing magnet materials

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