JP6925017B2 - Billet both ends grinding device - Google Patents

Billet both ends grinding device Download PDF

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JP6925017B2
JP6925017B2 JP2017031725A JP2017031725A JP6925017B2 JP 6925017 B2 JP6925017 B2 JP 6925017B2 JP 2017031725 A JP2017031725 A JP 2017031725A JP 2017031725 A JP2017031725 A JP 2017031725A JP 6925017 B2 JP6925017 B2 JP 6925017B2
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billet
grinding
chamfering
flat surface
endless
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JP2017148934A (en
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博康 塩川
博康 塩川
憲司 右田
憲司 右田
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Manyo Co Ltd
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Manyo Co Ltd
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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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/002—Machines or devices using grinding or polishing belts; Accessories therefor for grinding edges or bevels
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/38—Single-purpose machines or devices for externally grinding travelling elongated stock, e.g. wire
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/008—Machines comprising two or more tools or having several working posts
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/005—Feeding or manipulating devices specially adapted to grinding machines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Description

本発明は、切断された丸形棒鋼等のビレットの両端部を研削する研削装置に関する。更に詳しくは、ビレットの搬送工程の過程で、複数のビレットの両端面の平面部の加工と円周縁部の面取り加工の両方を同時に行うビレットの両端面研削装置に関する。 The present invention relates to a grinding device that grinds both ends of a billet such as a cut round steel bar. More specifically, the present invention relates to a billet end face grinding device that simultaneously performs both flat surface processing and chamfering of a circular peripheral surface portion of a plurality of billet end surfaces in the process of billet transfer process.

ビレットと称する丸形棒鋼の短尺材は、長い棒材を鋸刃による切断加工、又はシャー切断と称されるプレスによる切断加工等で作られている。ビレットは、その後の処理工程において、加熱炉で加熱されるか、あるいは加熱することなく常温のままでプレス金型に投入されて、ほぼ目的形状に塑性加工される。このように鍛造工程を経た後に、機械加工工程等を経て部品が完成される工程が、一般的な鍛工品の製造工程である。 A short round bar steel called a billet is made by cutting a long bar with a saw blade, cutting with a press called shear cutting, or the like. In the subsequent processing step, the billet is heated in a heating furnace or put into a press die at room temperature without heating and plastically processed into a substantially desired shape. A process in which a part is completed through a machining process or the like after undergoing the forging process in this way is a general manufacturing process for forged products.

上述した各切断加工による素材取り工程において得られるビレットの品質の良し悪しは、完成品の品質に大きな影響を与え、品質の悪いビレットは、そのまま品質の悪い鍛工品である最終完成品の品質に影響を与える。通常、ビレットは、その切断方法に関わらず、欠陥の発生箇所はほぼ決まっており、両端面の平面部とその円周縁部の両方である。即ち、シャー切断により、ビレット端面の平面部、円周縁部に、切断過程で、端面外に張り出す形の突起であるバリ、カエリ等が生じる。 The quality of the billets obtained in the material removal process by each cutting process described above has a great influence on the quality of the finished product, and the poor quality billets directly affect the quality of the final finished product, which is a poor quality forged product. Affect. Usually, regardless of the cutting method of the billet, the place where the defect occurs is almost fixed, and it is both the flat surface portion of both end faces and the circular peripheral portion thereof. That is, by shear cutting, burrs, burrs, and the like, which are protrusions protruding outside the end face, are generated on the flat surface portion and the circular peripheral portion of the billet end face during the cutting process.

ビレットにバリ、カエリ等の欠陥があると、この欠陥を含むビレットをそのまま熱間プレス、又は冷間プレス工程で製造すると、得られた鍛工品は割れや剥離を生じる欠陥鍛工品となる。また、ビレットにバリやカエリが付着したものを、そのまま熱間プレス、又は冷間プレス工程で製造すると、得られた鍛工品は突起物であるバリやカエリが溶融することでさらにその突起物の付着が強固になる場合がある。この場合はプレス成形後の製品において、鍛工品表層部に剥離現象や、亀裂の誘因となるキズ等の不具合部分を内在させることになる。 If the billet has defects such as burrs and burrs, if the billet containing these defects is manufactured as it is by a hot press or a cold press process, the obtained forged product becomes a defective forged product that cracks or peels off. Further, when a billet having burrs and burrs attached to it is manufactured by a hot press or a cold press process as it is, the obtained forged product is further formed by melting the burrs and burrs which are protrusions. Adhesion may be strong. In this case, in the product after press molding, defective parts such as peeling phenomenon and scratches that induce cracks are inherent in the surface layer portion of the forged product.

本出願人の提案である特許文献１の装置は、ビレットの両端面の平面部研削装置であり、ビレットを自動搬送して、ビレットの端面の平面部に発生するバリ、カエリ等の欠陥部位を全自動で除去して、鍛造品質を向上させる目的で開発されたものである。また、本出願人の提案である特許文献２の装置は、ビレットの両端面の円周縁部の面取り加工装置であり、ビレットを自動搬送して、ビレット端面の円周縁部のバリ、カエリ等の除去処理を行って、鍛造金型の長寿命化を図ったものである。 The device of Patent Document 1 proposed by the present applicant is a flat surface grinding device for both end faces of the billet, and automatically transports the billet to remove defective parts such as burrs and burrs generated on the flat surface of the end face of the billet. It was developed for the purpose of improving forging quality by removing it fully automatically. Further, the device of Patent Document 2 proposed by the present applicant is a chamfering device for the circular peripheral edges of both end faces of the billet, and automatically conveys the billet to prevent burrs, burrs, etc. on the circular peripheral edges of the billet end faces. The forging die is extended in life by being removed.

素材取り工程において得られるビレットは、両端面の平面部とその円周縁部の両方に欠陥が発生するため、平面部の加工と円周縁部の面取り加工の両方が必要となる。しかし、特許文献１、特許文献２の装置は、ビレットの平面部の加工と円周縁部の面取り加工を各々単独の研削装置で加工している。そのため、２台の研削装置を設置するための面積が大きくなり、２台のビレット自動搬送を運転するための運転エネルギーも大きくなる。 Since defects occur in both the flat surface portion of both end faces and the circular peripheral edge portion of the billet obtained in the material removing step, both the flat surface portion and the chamfering of the circular peripheral edge portion are required. However, in the devices of Patent Document 1 and Patent Document 2, the flat surface portion of the billet and the chamfering process of the circular peripheral edge portion are each processed by a single grinding device. Therefore, the area for installing the two grinding devices is large, and the operating energy for operating the two automatic billet transfer is also large.

特開２０１０−１７９４０４号公報JP-A-2010-179404 特開２０１４−２１０３１２号公報Japanese Unexamined Patent Publication No. 2014-210312

本発明は、以上のような背景で発明されたものであり、以下の目的を達成するものである。本発明の目的は、ビレットの両端面の平面部の加工と円周縁部の面取り加工の両方を同時に行い、省スペースで省エネルギーなビレットの両端面研削装置を提供することにある。 The present invention has been invented in the above background, and achieves the following objects. An object of the present invention is to provide a space-saving and energy-saving billet end face grinding apparatus by simultaneously performing both flat surface processing and chamfering of a circular peripheral edge portion of both end faces of a billet.

本発明は、前記課題を解決するために、次の手段を採る。
即ち、本発明１のビレットの両端面研削装置は、機台と、前記機台に設けられ、両端面及び両円周縁部を有し切断されたビレットを載置した複数のトレイを供給側から排出側へ、前記ビレットの軸線方向と横切る方向に搬送するビレット搬送装置（２）と、前記機台に設けられ、回動する第１の平面部加工用無端研削ベルトで前記ビレットの一方の側の前記端面の平面部の加工を行う第１の平面部加工用研削装置と、前記機台に設けられ、回動する第２の平面部加工用無端研削ベルトで、前記ビレットの他方の側の前記端面の平面部の加工を行う第２の平面部加工用研削装置と、前記機台に設けられ、回動する第１の面取り用無端研削ベルトで、前記ビレットの一方の側の前記端面の前記円周縁部の面取り加工を行う第１の面取り用研削装置と、前記ビレットの一端が前記第１の面取り用無端研削ベルトの縁部に達したとき、前記第１の面取り用研削装置に設けられ、前記第１の面取り用無端研削ベルトの前記縁部に接触させないように、前記ビレットに接離可能に昇降動作させる第１の昇降装置と、前記機台に設けられ、回動する第２の面取り用無端研削ベルトで、前記ビレットの他方の側の前記端面の前記円周縁部の面取り加工を行う第２の面取り用研削装置と、前記ビレットの他端が前記第２の面取り用無端研削ベルトの縁部に達したとき、前記第２の面取り用研削装置に設けられ、前記第２の面取り用無端研削ベルトの前記縁部に接触させないように、前記ビレットに接離可能に昇降動作させる第２の昇降装置とを備えたことを特徴とする。 The present invention adopts the following means in order to solve the above problems.
That is, in the billet end surface grinding device of the present invention 1, a machine base and a plurality of trays provided on the machine base and having both end faces and both circular peripheral edges on which the cut billets are placed are placed from the supply side. One side of the billet with a billet transport device (2) that transports the billet to the discharge side in the axial direction and the direction crossing the billet, and a first endless chamfering belt for machining a flat surface portion that is provided on the machine base and rotates. machining a first planar portion machining grinding apparatus for performing the flat portion of the end face, provided on the machine base, at a second endless grinding belt flat portion machining rotates, the other side of the billet a second flat portion machining grinding apparatus for machining of the flat portion of the end face, provided on the machine base, the first chamfering endless grinding belt that rotates, the end face of one side of the billet A first chamfering grinding device that chamfers the circular peripheral edge portion, and when one end of the billet reaches the edge of the first chamfering endless grinding belt, the first chamfering grinding device is provided. A first elevating device that moves up and down so that it can be brought into contact with the billet so as not to come into contact with the edge of the first chamfering endless grinding belt, and a second elevating device that is provided on the machine base and rotates. in chamfering endless grinding belt, the other of the second and chamfering grinding apparatus for performing chamfering of the circumferential edge of the end face of the side, the other end of the billet and the second chamfering endless grinding of the billet When it reaches the edge of the belt, it is provided in the second chamfering grinding device and is moved up and down so that it can be brought into contact with the billet so as not to come into contact with the edge of the second chamfering endless grinding belt. It is characterized by being provided with a second elevating device.

本発明２のビレットの両端面研削装置は、本発明１において、前記第１の面取り用研削装置は、前記第１の平面部加工用研削装置に隣接する排出側に配置され、前記第２の平面部加工用研削装置は、前記第１の面取り用研削装置に隣接する排出側に配置され、前記第２の面取り用研削装置は、前記第２の平面部加工用研削装置に隣接する排出側に配置されていることを特徴とする。
本発明３のビレットの両端面研削装置は、本発明１又は２において、前記ビレット搬送装置は、ビレットを載置した複数のトレイを供給側から排出側へ水平に搬送し、前記第１の平面部加工用無端研削ベルト及び前記第２の平面部加工用無端研削ベルトは、前記供給側より前記排出側が高くなるように傾斜させた構成のものであることを特徴とする。 In the first invention, the first chamfering grinding device is arranged on the discharge side adjacent to the first flat surface processing grinding device, and the second end surface grinding device of the second invention is described. The flat surface processing grinding device is arranged on the discharge side adjacent to the first chamfering grinding device, and the second chamfering grinding device is located on the discharge side adjacent to the second chamfering grinding device. It is characterized by being arranged in.
In the first or second aspect of the present invention, the billet end surface grinding device of the third invention horizontally transports a plurality of trays on which the billets are placed from the supply side to the discharge side, and the first plane surface is described. The endless grinding belt for partial processing and the second endless grinding belt for flat surface processing are characterized in that they are inclined so that the discharge side is higher than the supply side.

本発明４のビレットの両端面研削装置は、本発明１又は２において、前記ビレット搬送装置の移動方向は、前記第１の平面部加工用無端研削ベルト及び前記第２の平面部加工用無端研削ベルトの研削面の移動方向と鋭角に交差することを特徴とする。
本発明５のビレットの両端面研削装置は、本発明１又は２において、前記ビレット搬送装置は、前記第１の昇降装置及び第２の昇降装置に前記第１の面取り用無端研削ベルト及び前記第２の面取り用無端研削ベルトの昇降動作をさせるために、前記トレイの前記搬送位置を検出する位置検出手段を備えたことを特徴とする。 In the billet end surface grinding apparatus of the present invention 4, in the present invention 1 or 2, the moving direction of the billet transporting apparatus is the endless grinding belt for the first flat surface processing and the endless grinding for the second flat surface processing. It is characterized by intersecting the moving direction of the ground surface of the belt at an acute angle.
In the first or second aspect of the present invention, the billet transfer device according to the present invention 5 is the billet transfer device, the first elevating device and the second elevating device, the first chamfering endless grinding belt, and the first elevating device. In order to raise and lower the chamfering endless grinding belt (2), a position detecting means for detecting the conveying position of the tray is provided.

本発明６のビレットの両端面研削装置は、本発明１又は２において、前記ビレット搬送装置に設けられ、前記トレイ上の前記ビレットを前記ビレット搬送装置の搬送路の一方の側に寄せて搬送させる第１の幅寄せ装置と、前記ビレット搬送装置に設けられ、前記トレイ上の前記ビレットを前記ビレット搬送装置の搬送路の他方の側に寄せて搬送させる第２の幅寄せ装置とを備えたことを特徴とする。 In the present invention 1 or 2, the billet both end surface grinding apparatus of the present invention 6 is provided in the billet transfer device, and the billet on the tray is brought closer to one side of the transfer path of the billet transfer device and conveyed. It is provided with a first width-aligning device and a second width-aligning device provided in the billet transporting device, which brings the billet on the tray closer to the other side of the transport path of the billet transporting device and transports the billet. It is characterized by.

本発明のビレットの両端面研削装置は、ビレットの端面の平面部の加工を行う平面部加工用研削装置とビレットの端面の円周縁部の面取り加工を行う面取り用研削装置の両方を、ビレットを搬送するビレット搬送装置に沿って設置した。従って、ビレットの両端面の平面部の加工と円周縁部の面取り加工の両方を１台の研削装置で行うため、省スペースで省エネルギーなビレットの両端面研削装置となる。 The billet end face grinding device of the present invention uses both a flat surface grinding device for machining the flat surface of the billet end face and a chamfering grinding device for chamfering the circular peripheral edge of the billet end face. It was installed along the billet transport device to transport. Therefore, since both the flat surface portion of both end faces of the billet and the chamfering process of the circular peripheral edge portion are performed by one grinding device, the billet end surface grinding device is space-saving and energy-saving.

図１は、本発明のビレットの両端面研削装置の全体構成を示す正面図である。FIG. 1 is a front view showing the overall configuration of the both end surface grinding apparatus of the billet of the present invention. 図２は、図１の平面図である。FIG. 2 is a plan view of FIG. 図３は、図１の第１の平面部加工用研削装置の正面図である。FIG. 3 is a front view of the first flat surface processing grinding apparatus of FIG. 図４は、図３のＰ矢視図である。FIG. 4 is a view taken along the line P of FIG. 図５は、図１のトレイを示し、図５（ａ）はトレイの正面図、図５（ｂ）は図５（ａ）のＡ−Ａ断面図である。5A and 5B show the tray of FIG. 1, FIG. 5A is a front view of the tray, and FIG. 5B is a cross-sectional view taken along the line AA of FIG. 5A. 図６は、図１の幅寄せ装置を示し、図６（ａ）は幅寄せ装置の正面図、図６（ｂ）は図６（ａ）の平面図、図６（ｃ）は図６（ａ）のＢ−Ｂ断面図である。6A and 6B show the Tailgating device of FIG. 1, FIG. 6A is a front view of the Tailgating device, FIG. 6B is a plan view of FIG. 6A, and FIG. 6C is FIG. 6 (C). It is a BB cross-sectional view of a). 図７は、図１の第１の面取り用研削装置の正面図である。FIG. 7 is a front view of the first chamfering grinding device of FIG. 図８は、図７の第１の面取り用無端研削ベルト装置を示し、図８（ａ）は第１の面取り用無端研削ベルト装置の正面図、図８（ｂ）は図８（ａ）の左側面図である。8 shows a first chamfering endless grinding belt device of FIG. 7, FIG. 8A is a front view of the first chamfering endless grinding belt device, and FIG. 8B is FIG. 8A. It is a left side view. 図９は、図７のＣ−Ｃ断面図である。FIG. 9 is a cross-sectional view taken along the line CC of FIG. 図１０は研削動作を示す説明図であり、図１０（ａ）は平面部加工用研削装置の研削動作を示す説明図、図１０（ｂ）は面取り用研削装置の研削動作を示す説明図である。10A and 10B are explanatory views showing a grinding operation, FIG. 10A is an explanatory view showing a grinding operation of a flat surface processing grinding device, and FIG. 10B is an explanatory view showing a grinding operation of a chamfering grinding device. be.

以下、本発明の実施の形態を図面に基づいて説明する。図１は、本発明のビレットの両端面研削装置１の全体構成を示す正面図、図２は、図１の平面図である。なお、図１及び図２において、ビレットの両端面研削装置１の主要部の１つである機台１１、機枠１２は２点鎖線で示している。図１から図２に示すように、機台１１は床面に設置される固定部分であり、機枠１２は機台１１上に設置される枠状の固定部分である。機台１１、機枠１２の基本構成は鋼板のフレーム構成で、部位により分割可能な構成としている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the overall configuration of the both end surface grinding device 1 of the billet of the present invention, and FIG. 2 is a plan view of FIG. In addition, in FIGS. 1 and 2, the machine base 11 and the machine frame 12, which are one of the main parts of the billet both end surface grinding device 1, are shown by a two-dot chain line. As shown in FIGS. 1 to 2, the machine base 11 is a fixed portion installed on the floor surface, and the machine frame 12 is a frame-shaped fixed portion installed on the machine base 11. The basic structure of the machine base 11 and the machine frame 12 is a steel plate frame structure, which can be divided according to a part.

この機台１１上にはビレット搬送装置２が載置されている。このビレット搬送装置２は、図１、図２に示すように、左右方向に直線状に延びて配置され、可動なチェーンコンベア２１がコンベア機体２２に支持されたものである。ビレット３はこのチェーンコンベア２１のトレイ２３に支持されながら、チェーンコンベア２１の動きと共に矢印Ｅ方向に移動する。トレイ２３はチェーンコンベア２１上に取り付けられている。このチェーンコンベア２１は両端部にスプロケット２５、２６を有し、チェーンコンベア２１はこのスプロケット２５（図１、図２の左側）、スプロケット２６（図１、図２の右側）に噛み合い無端で回動する。一方のスプロケット２５には、コンベア駆動用の駆動装置２７が接続されている（図２参照）。ビレット３は、ビレット搬送装置２の供給側（図１、図２の右側）のビレット搬入装置２８から供給され、排出側（図１、図２の左側）のビレット搬出装置２９から排出される。 A billet transfer device 2 is mounted on the machine base 11. As shown in FIGS. 1 and 2, the billet transfer device 2 is arranged so as to extend linearly in the left-right direction, and a movable chain conveyor 21 is supported by the conveyor body 22. The billet 3 moves in the arrow E direction with the movement of the chain conveyor 21 while being supported by the tray 23 of the chain conveyor 21. The tray 23 is mounted on the chain conveyor 21. The chain conveyor 21 has sprockets 25 and 26 at both ends, and the chain conveyor 21 meshes with the sprockets 25 (left side in FIGS. 1 and 2) and the sprocket 26 (right side in FIGS. 1 and 2) and rotates endlessly. do. A drive device 27 for driving a conveyor is connected to one of the sprockets 25 (see FIG. 2). The billet 3 is supplied from the billet carry-in device 28 on the supply side (right side of FIGS. 1 and 2) of the billet transfer device 2, and is discharged from the billet carry-out device 29 on the discharge side (left side of FIGS. 1 and 2).

ビレット３は、ビレット搬送装置２の供給側（図１、図２の右側）から供給され、ビレット３の両端面に所定の研削加工を行った後、排出側（図１、図２の左側）から排出される。このビレット搬送装置２の上部には、ビレット搬送装置２に沿って、ビレット搬送装置２の供給側から順に、第１の平面部加工用研削装置４Ａ、第１の面取り用研削装置５Ａ、第２の平面部加工用研削装置４Ｂ、第２の面取り用研削装置５Ｂが、機台１１上に設けられている。第１の平面部加工用研削装置４Ａ、第２の平面部加工用研削装置４Ｂは、ビレット３の端面の平面部の加工を行う装置である。第１の面取り用研削装置５Ａ、第２の面取り用研削装置５Ｂは、ビレット３の端面の円周縁部の面取り加工を行う装置である。 The billet 3 is supplied from the supply side (right side of FIGS. 1 and 2) of the billet transfer device 2, and after performing a predetermined grinding process on both end surfaces of the billet 3, the discharge side (left side of FIGS. 1 and 2). Is discharged from. On the upper part of the billet transfer device 2, along the billet transfer device 2, in order from the supply side of the billet transfer device 2, a first flat surface processing grinding device 4A, a first chamfering grinding device 5A, and a second The flat surface processing grinding device 4B and the second chamfering grinding device 5B are provided on the machine base 11. The first flat surface processing grinding device 4A and the second flat surface processing grinding device 4B are devices for processing the flat surface portion of the end surface of the billet 3. The first chamfering grinding device 5A and the second chamfering grinding device 5B are devices for chamfering the circular peripheral edge of the end face of the billet 3.

第１の平面部加工用研削装置４Ａ、第１の面取り用研削装置５Ａの研削ベルト４６、５７は、ビレット３の一方の側の端面側（図２で見て上側）に配置されている。第２の平面部加工用研削装置４Ｂ、第２の面取り用研削装置５Ｂ研削ベルト４６、５７は、ビレット３の他方の側の端面側（図２で見て下側）に配置されている。第１の平面部加工用研削装置４Ａ、第２の平面部加工用研削装置４Ｂは、構成は同じものであるが、勝手違いとなっている。同様に、第１の面取り用研削装置５Ａ、第２の面取り用研削装置５Ｂも、構成は同じものであるが、勝手違いとなっている。本発明の主要部は、以上説明した装置で構成されているが、次に各々の装置の詳細な構造について説明する。 The grinding belts 46 and 57 of the first flat surface processing grinding device 4A and the first chamfering grinding device 5A are arranged on one end surface side (upper side when viewed in FIG. 2) of the billet 3. The second flat surface processing grinding device 4B and the second chamfering grinding device 5B grinding belts 46 and 57 are arranged on the other end surface side (lower side when viewed in FIG. 2) of the billet 3. The first flat surface processing grinding device 4A and the second flat surface processing grinding device 4B have the same configuration, but are different from each other. Similarly, the first chamfering grinding device 5A and the second chamfering grinding device 5B have the same configuration, but are different from each other. The main part of the present invention is composed of the devices described above, but the detailed structure of each device will be described next.

［ビレット搬送装置］
ビレット搬送装置２は、無端で回動するチェーンコンベア２１の移動で、ビレット３を搬送させる。駆動装置２７は、チェーンコンベア２１の左端部のスプロケット２５に接続されている。また、図示はしないが、駆動装置２７には位置検出手段（回転検知器）が接続され、スプロケット２５の回転数をカウントして、トレイ２３の搬送位置を検出している。この位置検出手段としては、例えばロータリーエンコーダが使用される。 [Billet transfer device]
The billet transfer device 2 conveys the billet 3 by moving the chain conveyor 21 that rotates endlessly. The drive device 27 is connected to the sprocket 25 at the left end of the chain conveyor 21. Although not shown, a position detecting means (rotation detector) is connected to the drive device 27, and the rotation speed of the sprocket 25 is counted to detect the transport position of the tray 23. As this position detecting means, for example, a rotary encoder is used.

図１、図５、図６に示すように、コンベア機体２２は、ビレット３の搬送方向に沿って両サイドに側壁が形成された枠体であって、コンベア機体２２の上面にチェーンコンベア２１が配置されて、ビレット３の搬送方向に転動する。図５に示すように、無端のチェーンコンベア２１には、トレイ２３が一個おきに配置され、コンベア機体２２の上面に沿って回動し、コンベア機体２２の下部をくぐって元の位置に戻る。トレイ２３の下部の両側面には、ガイドローラ２４、２４が片側に２個ずつ設けられている。トレイ２３は、コンベア機体２２にガイドローラ２４、２４が案内されて搬送方向に移動する。 As shown in FIGS. 1, 5, and 6, the conveyor body 22 is a frame body having side walls formed on both sides along the transport direction of the billet 3, and the chain conveyor 21 is placed on the upper surface of the conveyor body 22. It is arranged and rolls in the transport direction of the billet 3. As shown in FIG. 5, every other tray 23 is arranged on the endless chain conveyor 21, rotates along the upper surface of the conveyor body 22, passes through the lower part of the conveyor body 22, and returns to the original position. Two guide rollers 24, 24 are provided on each side of the lower portion of the tray 23 on both side surfaces. The tray 23 moves in the transport direction when the guide rollers 24, 24 are guided by the conveyor body 22.

トレイ２３の上部には、ローラ２３１、２３１が片側に２個ずつ回転自在に設置されていて、ビレット３はこの２つのローラ２３１、２３１に跨って載置される。ビレット３は、後述する幅寄せ装置６によって長手方向の位置が規制されながら強制的に搬送され、ローラ２３１、２３１上に回転可能に載置されて移動する。 Two rollers 231 and 231 are rotatably installed on one side of the tray 23, and the billet 3 is placed across the two rollers 231 and 231. The billet 3 is forcibly conveyed while its position in the longitudinal direction is restricted by the width adjusting device 6 described later, and is rotatably mounted on the rollers 231 and 231 to move.

［幅寄せ装置］
次に、搬送中におけるビレット３の整列機構について説明する。図１、図２、図６に示すように、コンベア機体２２の側壁には、４つの幅寄せ装置６が固定されている。この幅寄せ装置６は、勝手違いの構成で各々がコンベア機体２２の側壁に固定されている。この幅寄せ装置６は、搬送されるビレット３を最適な研削位置に寄せて案内するものである。ビレット３の研削する端面に対応して、４つの勝手違い構成の幅寄せ装置６として、コンベア機体２２の側壁に固定されている。図６は、図１、図２の一方の側（図１、図２の右端）の幅寄せ装置６を示し、図６（ａ）は幅寄せ装置６の正面図、図６（ｂ）は図６（ａ）の平面図、図６（ｃ）は図６（ａ）のＢ−Ｂ断面図である。図の位置は幅寄せ装置６の動作で、押し出し部材６１を介して幅寄せガイド６２を押圧し、トレイ２３上のビレット３を、第１の平面部加工用研削装置４Ａ側に寄せた状態を示している。 [Tailgating device]
Next, the alignment mechanism of the billet 3 during transportation will be described. As shown in FIGS. 1, 2, and 6, four width adjusting devices 6 are fixed to the side walls of the conveyor body 22. Each of the width adjusting devices 6 is fixed to the side wall of the conveyor body 22 in a different configuration. The width adjusting device 6 guides the billet 3 to be conveyed to the optimum grinding position. Corresponding to the end face to be ground of the billet 3, it is fixed to the side wall of the conveyor body 22 as a width adjusting device 6 having a configuration of four different parts. FIG. 6 shows a width adjusting device 6 on one side of FIGS. 1 and 2 (right end of FIGS. 1 and 2), FIG. 6 (a) is a front view of the width adjusting device 6, and FIG. 6 (b) is a front view of the width adjusting device 6. 6 (a) is a plan view, and FIG. 6 (c) is a cross-sectional view taken along the line BB of FIG. 6 (a). The position shown in the figure is the operation of the width adjusting device 6, in which the width adjusting guide 62 is pressed through the extrusion member 61, and the billet 3 on the tray 23 is moved toward the first flat surface processing grinding device 4A. Shown.

押し出し部材６１は、コンベア機体２２を横切る方向（図６（ｃ）の左右方向）に移動可能に載置されている。幅寄せガイド６２にはビレット３の搬送案内部６２２が形成され、搬送方向に沿って長尺部材を構成している。幅寄せガイド６２が前進すると、幅寄せガイド６２の搬送案内部６２２に押されて、ビレット３は、ビレット搬送装置２の一方の側（図６（ｃ）の右側）に寄せられる。第１の平面部加工用研削装置４Ａ、第１の面取り用研削装置５Ａによって、ビレット３の一方の側の端面の平面部の加工と周縁部の面取り加工が終了すると、ビレット３は、ビレット搬送装置２の中間位置に達する。すると、３つ目の幅寄せ装置６がビレット３をビレット搬送装置２の他方の側（図６（ｃ）の左側）に押圧する。ビレット３は、第２の平面部加工用研削装４Ｂ、第２の面取り用研削装置５Ｂによって、ビレット３の他方の側の端面の平面部の加工と周縁部の面取り加工が施される。幅寄せガイド６２には、ビレット３の昇降規制部６２１が形成されていて、ビレット３の上部を押さえ、ビレット３がローラ２３１、２３１から浮き上がらないように規制している。 The extrusion member 61 is movably mounted in a direction (left-right direction in FIG. 6C) across the conveyor body 22. A transport guide portion 622 of the billet 3 is formed on the width adjusting guide 62, and constitutes a long member along the transport direction. When the width-aligning guide 62 advances, it is pushed by the transport guide portion 622 of the width-aligning guide 62, and the billet 3 is moved to one side of the billet transport device 2 (on the right side of FIG. 6C). When the first flat surface processing grinding device 4A and the first chamfering grinding device 5A complete the processing of the flat surface portion and the chamfering of the peripheral portion of one end surface of the billet 3, the billet 3 is conveyed to the billet. Reach the intermediate position of device 2. Then, the third width adjusting device 6 presses the billet 3 against the other side of the billet conveying device 2 (left side in FIG. 6C). The billet 3 is subjected to processing of the flat surface portion of the other end surface of the billet 3 and chamfering of the peripheral edge portion by the second flat surface processing grinding device 4B and the second chamfering grinding device 5B. The width adjusting guide 62 is formed with an elevating regulation portion 621 of the billet 3, which presses the upper portion of the billet 3 and regulates the billet 3 so that it does not rise from the rollers 231 and 231.

幅寄せ装置６には調整ハンドル６３、６４が取り付けられている。調整ハンドル６３の操作で、ビレット３の軸線方向（長手方向）の長さに対応して、押し出し部材６１を調整して幅寄せガイド６２のガイド幅を変える。また、調整ハンドル６４の操作で、ビレット３の直径寸法に対応して、昇降台６５を上下する。押し出し部材６１は昇降台６５上に取り付けられている。幅寄せ装置６は、第１の平面部加工用研削装置４Ａ、第１の面取り用研削装置５Ａ、第２の平面部加工用研削装置４Ｂ、第２の面取り用研削装置５Ｂの各々の研削位置に設置される。 Adjustment handles 63 and 64 are attached to the width adjusting device 6. By operating the adjustment handle 63, the extrusion member 61 is adjusted to change the guide width of the width adjusting guide 62 in accordance with the length of the billet 3 in the axial direction (longitudinal direction). Further, by operating the adjustment handle 64, the lift 65 is moved up and down according to the diameter dimension of the billet 3. The extrusion member 61 is mounted on the lift 65. The width adjusting device 6 is a grinding position of each of the first flat surface processing grinding device 4A, the first chamfering grinding device 5A, the second flat surface processing grinding device 4B, and the second chamfering grinding device 5B. Will be installed in.

［第１の平面部加工用研削装置、第２の平面部加工用研削装置］
第１の平面部加工用研削装置４Ａと第２の平面部加工用研削装置４Ｂは、ビレット３の両端面を研削するものである。第１の平面部加工用研削装置４Ａと第２の平面部加工用研削装置４Ｂは構成は同一で、勝手違いとなっている。従って、第１の平面部加工用研削装置４Ａについて説明し、第２の平面部加工用研削装置４Ｂについての説明は省略する。図１〜図４に示すように、第１の平面部加工用研削装置４Ａは、ビレット３の一方の側の端面側（図２で見て上側）に配置されている。機台１１の上面には、角柱状の支柱４１が設置されている。この支柱４１上に、第１の平面部加工用無端研削ベルト装置４２が取り付けられている。第１の平面部加工用無端研削ベルト装置４２には、大プーリ４３と小プーリ４４が回転自在に設けられている。大プーリ４３は、ビレット搬送装置２の供給側に設置され、駆動モータ４５の出力軸に伝達機構（図示せず）を介して連結されている。小プーリ４４は、ビレット搬送装置２の排出側に設置され、大プーリ４３に対し相対的に位置調整が可能な構造になっている。位置調整装置は、ネジ機構を用いたものであり、その具体的な機構は公知であり詳細な説明は省略する。 [First flat surface processing grinding device, second flat surface processing grinding device]
The first flat surface processing grinding device 4A and the second flat surface processing grinding device 4B grind both end faces of the billet 3. The first flat surface processing grinding device 4A and the second flat surface processing grinding device 4B have the same configuration and are different from each other. Therefore, the first flat surface processing grinding device 4A will be described, and the second flat surface processing grinding device 4B will be omitted. As shown in FIGS. 1 to 4, the first flat surface processing grinding apparatus 4A is arranged on the end surface side (upper side when viewed in FIG. 2) on one side of the billet 3. A prismatic column 41 is installed on the upper surface of the machine base 11. A first endless grinding belt device 42 for processing a flat surface portion is mounted on the support column 41. The large pulley 43 and the small pulley 44 are rotatably provided in the first endless grinding belt device 42 for processing a flat surface portion. The large pulley 43 is installed on the supply side of the billet transfer device 2 and is connected to the output shaft of the drive motor 45 via a transmission mechanism (not shown). The small pulley 44 is installed on the discharge side of the billet transfer device 2, and has a structure in which the position can be adjusted relative to the large pulley 43. The position adjusting device uses a screw mechanism, and the specific mechanism thereof is known and detailed description thereof will be omitted.

大プーリ４３と小プーリ４４に跨って、無端で帯状の研削ベルト４６が回動自在に巻き掛けられている。従って、この研削ベルト４６は、駆動モータ４５の駆動により、大プーリ４３と小プーリ４４の周囲を回動する。この研削ベルト４６の回動は供給側より排出側が高くなるように傾斜させた構成で、図１０（ａ）に示すように、研削ベルト４６の回動方向Ｆは、ビレット３の搬送方向（矢印Ｅ方向）に対し逆方向である。即ち、図１０（ａ）に示すように、回動する研削ベルト４６の上下の幅Ｇ内に、複数のビレット３が連なって、回動方向Ｆを斜めに横切る形で搬送される。即ち、研削ベルト４６の移動方向とビレット３の移動方向は、鋭角に交差するような配置置である。言い換えると、ビレット３は、矩形状の研削ベルト４６の研削面の対角線方向に移動する。この対角線方向に移動により、研削ベルト４６の上下の幅Ｇの全面を均等に使用できる。ビレット３が研削長さＨを通過すると、複数のビレット３の一方の側の端面の平面部を研削加工する。又、このビレット３自体は、供給側から搬出側に搬送される過程で、研削ベルト４６の研削抵抗によって、矢印Ｊに示す方向に回転（自転）する。 An endless strip-shaped grinding belt 46 is rotatably wound across the large pulley 43 and the small pulley 44. Therefore, the grinding belt 46 rotates around the large pulley 43 and the small pulley 44 by the drive of the drive motor 45. The rotation of the grinding belt 46 is inclined so that the discharge side is higher than the supply side. As shown in FIG. 10A, the rotation direction F of the grinding belt 46 is the transport direction (arrow) of the billet 3. It is the opposite direction to the E direction). That is, as shown in FIG. 10A, a plurality of billets 3 are connected in a row within the vertical width G of the rotating grinding belt 46, and are conveyed so as to diagonally cross the rotation direction F. That is, the moving direction of the grinding belt 46 and the moving direction of the billet 3 are arranged so as to intersect at an acute angle. In other words, the billet 3 moves in the diagonal direction of the grinding surface of the rectangular grinding belt 46. By moving in the diagonal direction, the entire surface of the upper and lower widths G of the grinding belt 46 can be used evenly. When the billet 3 passes through the grinding length H, the flat surface portion of the end face on one side of the plurality of billets 3 is ground. Further, the billet 3 itself rotates (rotates) in the direction indicated by the arrow J due to the grinding resistance of the grinding belt 46 in the process of being conveyed from the supply side to the carry-out side.

研削ベルト４６を適正にビレット３の端面に押し当てるために、第１の平面部加工用無端研削ベルト装置４２に押し当て装置４７を配置している。この押し当て装置４７は、図４に示すように、搬送されるビレット３の端面に対向する形で、研削ベルト４６の長さ方向に沿って、研削ベルト４６の全面に亘って押し当てる装置である。この押し当て装置４７は、ビレット３の端面に対向して、直接、研削ベルト４６に押し付けられるプレート状の板状部材４７１と、この板状部材４７１をビレット３に均一に押し当てるための３本の調整ボルト４７２とから構成されている。第１の平面部加工用研削装置４Ａはこのように構成されている。同様に、同一構成の第２の平面部加工用研削装置４Ｂが、ビレット３の他方の側の端面側に勝手違いに設置されている。 In order to properly press the grinding belt 46 against the end face of the billet 3, the pressing device 47 is arranged on the first endless grinding belt device 42 for flat surface processing. As shown in FIG. 4, the pressing device 47 is a device that presses the entire surface of the grinding belt 46 along the length direction of the grinding belt 46 so as to face the end surface of the billet 3 to be conveyed. be. The pressing device 47 has a plate-shaped plate-shaped member 471 that faces the end face of the billet 3 and is directly pressed against the grinding belt 46, and three for uniformly pressing the plate-shaped member 471 against the billet 3. It is composed of the adjustment bolt 472 of. The first flat surface processing grinding device 4A is configured in this way. Similarly, a second flat surface processing grinding device 4B having the same configuration is arbitrarily installed on the end surface side of the other side of the billet 3.

［第１の面取り用研削装置、第２の面取り用研削装置］
第１の面取り用研削装置５Ａと第２の面取り用研削装置５Ｂは、ビレット３の両端部の角を面取るための研削装置である。第１の面取り用研削装置５Ａと第２の面取り用研削装置５Ｂは構成は同一で、勝手違いとなっている。従って、第１の面取り用研削装置５Ａについて説明し、第２の面取り用研削装置５Ｂについての説明は省略する。図１〜図２、図７〜図９に示すように、第１の面取り用研削装置５Ａの研削ベルト５７は、ビレット３の一方の側の端面側（図２で見て上側）に配置されている。支柱５１は図２で見て下側の機台１１に立設されている。支柱５１に支持体５２が上下方向に移動可能に取り付けられている。この支持体５２に第１の面取り用無端研削ベルト装置５３が固定されている。 [First chamfering grinding device, second chamfering grinding device]
The first chamfering grinding device 5A and the second chamfering grinding device 5B are grinding devices for chamfering the corners of both ends of the billet 3. The first chamfering grinding device 5A and the second chamfering grinding device 5B have the same configuration and are different from each other. Therefore, the first chamfering grinding device 5A will be described, and the second chamfering grinding device 5B will be omitted. As shown in FIGS. 1 to 2 and 7 to 9, the grinding belt 57 of the first chamfering grinding device 5A is arranged on one end surface side (upper side when viewed in FIG. 2) of the billet 3. ing. The support column 51 is erected on the lower machine stand 11 as seen in FIG. A support 52 is attached to the support column 51 so as to be movable in the vertical direction. A first chamfering endless grinding belt device 53 is fixed to the support 52.

この第１の面取り用無端研削ベルト装置５３は、無端で回動する研削ベルト５７を有している。研削ベルト５７はビレット３の端面の円周縁部の加工に対応し、面取り研削可能な配置に固定されている。即ち、研削ベルト５７の研削面はビレット３の端面に対し、略４５度の角度で傾斜し、且つビレット３の搬送方向に平行になるように取り付けられている。支持体５２の上下方向移動機構が図７と図９に示されている。即ち、支柱５１の前面５１１には、２個のガイドブッシュ５８、５８が固定され、ガイド棒５８１、５８１の下側がガイドブッシュ５８、５８に上下方向に摺動可能に嵌合している。支持体５２の後面には、板状の接続板５２１が固定され、この接続板５２１にガイド棒５８１、５８１の上端が固定されている。また、支柱５１の前面５１１には油圧シリンダ５８２が固定され、油圧シリンダ５８２のピストンロッド５８３の上端が接続板５２１に固定されている。従って、図示しないソレノイドバルブで油圧シリンダ５８２を作動して、支持体５２を支柱５１に対して上下方向に移動する。 The first chamfering endless grinding belt device 53 has a grinding belt 57 that rotates endlessly. The grinding belt 57 corresponds to the processing of the circular peripheral edge of the end face of the billet 3 and is fixed in an arrangement capable of chamfer grinding. That is, the grinding surface of the grinding belt 57 is attached so as to be inclined with respect to the end surface of the billet 3 at an angle of approximately 45 degrees and to be parallel to the transport direction of the billet 3. The vertical movement mechanism of the support 52 is shown in FIGS. 7 and 9. That is, two guide bushes 58, 58 are fixed to the front surface 511 of the support column 51, and the lower side of the guide rods 581, 581 is slidably fitted to the guide bushes 58, 58 in the vertical direction. A plate-shaped connecting plate 521 is fixed to the rear surface of the support 52, and the upper ends of the guide rods 581 and 581 are fixed to the connecting plate 521. Further, a hydraulic cylinder 582 is fixed to the front surface 511 of the support column 51, and the upper end of the piston rod 583 of the hydraulic cylinder 582 is fixed to the connection plate 521. Therefore, the hydraulic cylinder 582 is operated by a solenoid valve (not shown) to move the support 52 in the vertical direction with respect to the support column 51.

図８は、第１の面取り用無端研削ベルト装置５３を示し、図８（ａ）は第１の面取り用無端研削ベルト装置５３の正面図、図８（ｂ）は図８（ａ）の左側面図である。第１の面取り用無端研削ベルト装置５３には、大プーリ５４と小プーリ５５が回転自在に設けられている。大プーリ５５は支持体５２側に設置され、駆動モータ５６の出力軸に、伝達機構（図示せず）を介して連結されている。小プーリ５５は、支持体５２から離れた側に設置され、大プーリ５４に対し相対的に位置調整が可能な構造になっている。位置調整装置は、ネジ機構を用いたものであり、その具体的な機構は公知であり詳細な説明は省略する。 8A and 8B show a first chamfering endless grinding belt device 53, FIG. 8A is a front view of the first chamfering endless grinding belt device 53, and FIG. 8B is the left side of FIG. 8A. It is a chamfer. The chamfering endless grinding belt device 53 is provided with a large pulley 54 and a small pulley 55 rotatably. The large pulley 55 is installed on the support 52 side and is connected to the output shaft of the drive motor 56 via a transmission mechanism (not shown). The small pulley 55 is installed on the side away from the support 52, and has a structure in which the position can be adjusted relative to the large pulley 54. The position adjusting device uses a screw mechanism, and the specific mechanism thereof is known and detailed description thereof will be omitted.

大プーリ５４と小プーリ５５に跨って、無端で帯状の研削ベルト５７が回動自在に巻き掛けられている。従って、この研削ベルト５７は、駆動モータ５６の駆動により、大プーリ５４と小プーリ５５の周囲を回動する。この研削ベルト５７の研削面をビレット３の端面の円周縁部に傾斜させて配置する。 An endless strip-shaped grinding belt 57 is rotatably wound across the large pulley 54 and the small pulley 55. Therefore, the grinding belt 57 rotates around the large pulley 54 and the small pulley 55 by the drive of the drive motor 56. The grinding surface of the grinding belt 57 is arranged so as to be inclined toward the circular peripheral edge of the end surface of the billet 3.

［第１の平面部加工用研削装置４Ａの加工動作］
図示しない切断装置で切断されたビレット３は、ビレットの両端面研削装置１の右端のビレット搬入装置２８によってビレット搬送装置２に搬入される。図２の右端の幅寄せ装置６を作動し、押し出し部材６１を介して幅寄せガイド６２を押圧し、トレイ２３上のビレット３を、第１の平面部加工用研削装置４Ａ側に寄せる。第１の平面部加工用研削装置４Ａの駆動モータ４５を駆動し、研削ベルト４６によって、図１０（ａ）に示すように、ビレット３の一方の側の端面の平面部を研削加工する。 [Machining operation of the first grinding device 4A for flat surface processing]
The billet 3 cut by a cutting device (not shown) is carried into the billet transfer device 2 by the billet carry-in device 28 at the right end of the both end surface grinding device 1 of the billet. The width adjusting device 6 at the right end of FIG. 2 is operated, the width adjusting guide 62 is pressed through the extrusion member 61, and the billet 3 on the tray 23 is brought toward the first flat surface processing grinding device 4A side. The drive motor 45 of the first flat surface processing grinding device 4A is driven, and the flat surface portion of the end surface on one side of the billet 3 is ground by the grinding belt 46 as shown in FIG. 10 (a).

［第１の面取り用研削装置５Ａの加工動作］
一方の側の端面の平面部の研削加工が終了したビレット３は、ビレット搬送装置２によって第１の面取り用研削装置５Ａの加工位置に搬送される。図２の右端から２番目の幅寄せ装置６を作動し、押し出し部材６１を介して幅寄せガイド６２を押圧し、トレイ２３上のビレット３を、第１の面取り用研削装置５Ａ側に寄せる。研削ベルト５７は、前述のとおりビレット３に対し傾斜させて設置している。図１０（ｂ）は研削ベルト５７を略４５度（鉛直方向を基準）で設置した場合の説明図である。ビレット３は矢印Ｅ方向に搬送され、研削ベルト５７は矢印Ｋ方向に回動する。即ち、本例では、研削ベルト５７の研削面の移動方向とビレット３の移動方向は、略４５度に交差することになる。研削ベルト５７に対するビレット３の接触位置は、ビレット３の円周縁部の上端Ｌである。即ち、研削ベルト５７は、一対のローラ２３１、２３１に回転可能に支持されているビレット３を回転させながら面取りを行う。従って、ビレット３の研削位置は円周縁部の上端Ｌにあり、このため研削ベルト５７の位置は、研削面がビレット３の円周縁部の上端Ｌに当接するように構成されている。 [Processing operation of the first chamfering grinding device 5A]
The billet 3 for which the grinding process of the flat surface portion of the end surface on one side has been completed is conveyed to the processing position of the first chamfering grinding device 5A by the billet transfer device 2. The second width adjusting device 6 from the right end of FIG. 2 is operated, the width adjusting guide 62 is pressed through the extrusion member 61, and the billet 3 on the tray 23 is brought closer to the first chamfering grinding device 5A. As described above, the grinding belt 57 is installed so as to be inclined with respect to the billet 3. FIG. 10B is an explanatory view when the grinding belt 57 is installed at approximately 45 degrees (based on the vertical direction). The billet 3 is conveyed in the direction of arrow E, and the grinding belt 57 rotates in the direction of arrow K. That is, in this example, the moving direction of the grinding surface of the grinding belt 57 and the moving direction of the billet 3 intersect at approximately 45 degrees. The contact position of the billet 3 with respect to the grinding belt 57 is the upper end L of the circular peripheral edge of the billet 3. That is, the grinding belt 57 chamfers while rotating the billet 3 rotatably supported by the pair of rollers 231 and 231. Therefore, the grinding position of the billet 3 is at the upper end L of the circular peripheral edge portion, and therefore the position of the grinding belt 57 is configured so that the grinding surface abuts on the upper end L of the circular peripheral edge portion of the billet 3.

油圧シリンダ５８２を作動して、支持体５２を支柱５１に対して下方向に移動する。ビレット３は、研削ベルト５７の研削面に対し、ビレット３の搬送方向Ｅに沿う中間の幅部Ｍの範囲内のみ接触し、研削が施される。即ち、搬送されるビレット３の上端Ｌが研削ベルト５７の縁部の幅部Ｎ位置に達したとき、この位置を図示しない位置検出手段（回転検知器）で検知し、油圧シリンダ５８２を作動させる。ビレット３の上端Ｌを研削ベルト５７縁部の幅部Ｎには接触させないようにした。ビレット３は回転しながら、一方の側の端面の円周縁部の上端Ｌが、前述の幅部Ｍの範囲内で研削が施される。即ち、研削ベルト５７縁部の幅部Ｎにはビレット３を接触させないため、研削ベルト５７の縁部の急激な磨耗が避けられて、研削ベルト５７の耐久性が向上する。 The hydraulic cylinder 582 is operated to move the support 52 downward with respect to the support column 51. The billet 3 comes into contact with the grinding surface of the grinding belt 57 only within the range of the intermediate width portion M along the transport direction E of the billet 3 to perform grinding. That is, when the upper end L of the billet 3 to be conveyed reaches the width N position of the edge portion of the grinding belt 57, this position is detected by a position detecting means (rotation detector) (not shown), and the hydraulic cylinder 582 is operated. .. The upper end L of the billet 3 was not brought into contact with the width portion N of the edge portion of the grinding belt 57. While the billet 3 is rotating, the upper end L of the circular peripheral edge portion of the end surface on one side is ground within the range of the width portion M described above. That is, since the billet 3 is not brought into contact with the width portion N of the edge portion of the grinding belt 57, sudden wear of the edge portion of the grinding belt 57 is avoided, and the durability of the grinding belt 57 is improved.

このようにして、一方の側の端面の平面部の研削加工と円周縁部の面取り加工が終了したビレット３は、ビレット搬送装置２によって第２の平面部加工用研削装置４Ｂ、第２の面取り用研削装置５Ｂに順次搬送される。ビレット３の他方の側の端面の平面部の研削加工と円周縁部の面取り加工が行われ、ビレット３の両端面の研削加工が終了する。その後、排出側（図１、図２の左側）のビレット搬出装置２９からビレット３が排出される。本発明の実施の形態のビレットの両端面研削装置１は、ビレット３の両端面の平面部の加工と円周縁部の面取り加工の両方を１台の研削装置で行うため、省スペースで省エネルギーなビレットの両端面研削装置となる。 In this way, the billet 3 for which the grinding process of the flat surface portion of the end surface on one side and the chamfering process of the circular peripheral edge portion has been completed is subjected to the second surface portion processing grinding device 4B and the second chamfering by the billet transfer device 2. It is sequentially conveyed to the grinding device 5B. The flat surface of the other end surface of the billet 3 is ground and the peripheral edge of the circle is chamfered, and the grinding of both end faces of the billet 3 is completed. After that, the billet 3 is discharged from the billet unloading device 29 on the discharge side (left side of FIGS. 1 and 2). The billet end surface grinding device 1 according to the embodiment of the present invention saves space and energy because both the flat surface portions of the billet 3 end surfaces and the chamfering process of the circular peripheral edge portion are performed by one grinding device. It is a billet both end surface grinding device.

ビレット３の両端面は、各々１回の平面部の研削加工と円周縁部の面取り加工が施されて排出されるが、１回に限定される必要はない。即ち、切断されたビレット３の端面の状態（即ち、切断装置の性能等）に応じて、平面部の研削加工と円周縁部の面取り加工の回数を決めればよい。なお、前述した図１０（ａ）に示したものは、研削ベルト４６の回動方向Ｆを斜めに横切る方向の形で、ビレット３が搬送される。また、図１０（ｂ）に示した研削ベルト５７を略４５度で設置したものも同様である。研削ベルトの研削面積を有効にかつ均一に使用する意味では、矩形状の研削面の対角線上にビレットを移動させると良い。 Both end faces of the billet 3 are discharged by grinding the flat surface portion and chamfering the circular peripheral portion once, but the billet 3 does not have to be limited to one time. That is, the number of times of grinding of the flat surface portion and chamfering of the circular peripheral edge portion may be determined according to the state of the end surface of the cut billet 3 (that is, the performance of the cutting device, etc.). In the above-mentioned one shown in FIG. 10A, the billet 3 is conveyed in a direction diagonally crossing the rotation direction F of the grinding belt 46. The same applies to the grinding belt 57 shown in FIG. 10B installed at approximately 45 degrees. In order to effectively and uniformly use the grinding area of the grinding belt, it is preferable to move the billet on the diagonal line of the rectangular grinding surface.

以上、本発明の実施例を説明したが、本発明はこの実施例に限定されることはない。例えば、前述した実施例では、平面部の研削加工が終了した後で円周縁部の面取り加工を行っているが、円周縁部の面取り加工が終了した後で平面部の研削加工を行っても良い。また、ビレット３の一方の側の端面の平面部の研削加工と円周縁部の面取り加工の後で、ビレット３の他方の側の端面の平面部の研削加工と円周縁部の面取り加工を行っているが、ビレット３の一方の側と他方の側の端面の平面部の研削加工が終了した後で、ビレット３の一方の側と他方の側の端面の円周縁部の面取り加工を行っても良い。 Although examples of the present invention have been described above, the present invention is not limited to these examples. For example, in the above-described embodiment, the chamfering process of the circular peripheral edge portion is performed after the grinding process of the flat surface portion is completed, but the flat surface portion may be grounded after the chamfering process of the circular peripheral edge portion is completed. good. Further, after grinding the flat surface portion of the end face on one side of the billet 3 and chamfering the circular peripheral edge portion, grinding of the flat surface portion of the end surface on the other side of the billet 3 and chamfering the circular peripheral edge portion are performed. However, after the grinding of the flat surface of the end faces of one side and the other side of the billet 3 is completed, the chamfering of the circular peripheral edge of the end faces of one side and the other side of the billet 3 is performed. Is also good.

１…ビレットの両端面研削装置
１１…機台
１２…機枠
２…ビレット搬送装置
２１…チェーンコンベア
２２…コンベア機体
２３…トレイ
２３１…ローラ
２４…ガイドローラ
２５…スプロケット
２６…スプロケット
２７…駆動装置
２８…ビレット搬入装置
２９…ビレット搬出装置
３…ビレット
４Ａ…第１の平面部加工用研削装置
４Ｂ…第２の平面部加工用研削装置
４１…支柱
４２…第１の平面部加工用無端研削ベルト装置
４３…大プーリ
４４…小プーリ
４５…駆動モータ
４６…研削ベルト
４７…押し当て装置
４７１…板状部材
４７２…調整ボルト
５Ａ…第１の面取り用研削装置
５Ｂ…第２の面取り用研削装置
５１…支柱
５１１…前面
５２…支持体
５２１…接続板
５３…第１の面取り用無端研削ベルト装置
５４…大プーリ
５５…小プーリ
５６…駆動モータ
５７…研削ベルト
５８…ガイドブッシュ
５８１…ガイド棒
５８２…油圧シリンダ
５８３…ピストンロッド
６…幅寄せ装置
６１…押し出し部材
６２…幅寄せガイド
６２１…昇降規制部
６２２…搬送案内部
６３、６４…調整ハンドル
６５…昇降台 1 ... Billet end surface grinding device 11 ... Machine stand 12 ... Machine frame 2 ... Billet transfer device 21 ... Chain conveyor 22 ... Conveyor body 23 ... Tray 231 ... Roller 24 ... Guide roller 25 ... Sprocket 26 ... Sprocket 27 ... Drive device 28 ... Billet carry-in device 29 ... Billet carry-out device 3 ... Billet 4A ... First flat surface processing grinding device 4B ... Second flat surface processing grinding device 41 ... Support 42 ... First flat surface processing endless grinding belt device 43 ... Large pulley 44 ... Small pulley 45 ... Drive motor 46 ... Grinding belt 47 ... Pushing device 471 ... Plate-shaped member 472 ... Adjusting bolt 5A ... First chamfering grinding device 5B ... Second chamfering grinding device 51 ... Support column 511 ... Front surface 52 ... Support 521 ... Connection plate 53 ... First chamfering endless grinding belt device 54 ... Large pulley 55 ... Small pulley 56 ... Drive motor 57 ... Grinding belt 58 ... Guide bush 581 ... Guide rod 582 ... Hydraulic Cylinder 583 ... Piston rod 6 ... Width adjusting device 61 ... Extruding member 62 ... Width adjusting guide 621 ... Elevating control unit 622 ... Transport guide unit 63, 64 ... Adjusting handle 65 ... Elevating table

Claims (6)

機台と、
前記機台に設けられ、両端面及び両円周縁部を有し切断されたビレットを載置した複数のトレイを供給側から排出側へ、前記ビレットの軸線方向と横切る方向に搬送するビレット搬送装置と、
前記機台に設けられ、回動する第１の平面部加工用無端研削ベルトで前記ビレットの一方の側の前記端面の平面部の加工を行う第１の平面部加工用研削装置と、
前記機台に設けられ、回動する第２の平面部加工用無端研削ベルトで、前記ビレットの他方の側の前記端面の平面部の加工を行う第２の平面部加工用研削装置と、
前記機台に設けられ、回動する第１の面取り用無端研削ベルトで、前記ビレットの一方の側の前記端面の前記円周縁部の面取り加工を行う第１の面取り用研削装置と、
前記ビレットの一端が前記第１の面取り用無端研削ベルトの縁部に達したとき、前記第１の面取り用研削装置に設けられ、前記第１の面取り用無端研削ベルトの前記縁部に接触させないように、前記ビレットに接離可能に昇降動作させる第１の昇降装置と、
前記機台に設けられ、回動する第２の面取り用無端研削ベルトで、前記ビレットの他方の側の前記端面の前記円周縁部の面取り加工を行う第２の面取り用研削装置と、
前記ビレットの他端が前記第２の面取り用無端研削ベルトの縁部に達したとき、前記第２の面取り用研削装置に設けられ、前記第２の面取り用無端研削ベルトの前記縁部に接触させないように、前記ビレットに接離可能に昇降動作させる第２の昇降装置と
を備えたことを特徴とするビレットの両端面研削装置。 With the machine stand
A billet transport device provided on the machine base that transports a plurality of trays on which billets cut having both end faces and peripheral edges of both circles are placed, from the supply side to the discharge side in the axial direction and the crossing direction of the billets. When,
Provided in the machine base, first a first planar portion machining grinding apparatus which endlessly grinding belt flat portion machining for machining of the flat portion of the end surface of one side of the billet to be rotated,
Provided in the machine base, at the second flat portion machining endless grinding belt which rotates, the other second for machining of the flat portion of the end surface of the side of the plane portion machining grinding apparatus of the billet,
Provided in the machine base, the first chamfering endless grinding belt that rotates, first and chamfering grinding apparatus for performing chamfering of the circumferential edge of the end surface of one side of the billet,
When one end of the billet reaches the edge of the first chamfering endless grinding belt, it is provided in the first chamfering grinding device and does not come into contact with the edge of the first chamfering endless grinding belt. As described above, the first lifting device for raising and lowering the billet so that it can be brought into contact with and detached from the billet,
Provided in the machine base, in a second chamfering endless grinding belt which rotates, and the other said side of said end face second performing chamfering of the circumferential edge of the chamfering grinding apparatus of the billet,
When the other end of the billet reaches the edge of the second chamfering endless grinding belt, it is provided in the second chamfering grinding device and comes into contact with the edge of the second chamfering endless grinding belt. A billet end face grinding device provided with a second lifting device that moves the billet up and down so that it can be brought into contact with and detached from the billet. 請求項１に記載のビレットのビレットの両端面研削装置において、
前記第１の面取り用研削装置は、前記第１の平面部加工用研削装置に隣接する排出側に配置され、
前記第２の平面部加工用研削装置は、前記第１の面取り用研削装置に隣接する排出側に配置され、
前記第２の面取り用研削装置は、前記第２の平面部加工用研削装置に隣接する排出側に配置されている
ことを特徴とするビレットの両端面研削装置。 In the billet billet end face grinding apparatus according to claim 1,
The first chamfering grinding device is arranged on the discharge side adjacent to the first flat surface processing grinding device.
The second flat surface processing grinding device is arranged on the discharge side adjacent to the first chamfering grinding device.
The second chamfering grinding device is a billet both end surface grinding device, characterized in that the second chamfering grinding device is arranged on the discharge side adjacent to the second flat surface processing grinding device. 請求項１又は２に記載のビレットの両端面研削装置において、
前記ビレット搬送装置は、ビレットを載置した複数のトレイを供給側から排出側へ水平に搬送し、
前記第１の平面部加工用無端研削ベルト及び前記第２の平面部加工用無端研削ベルトは、前記供給側より前記排出側が高くなるように傾斜させた構成のものである
ことを特徴とするビレットの両端面研削装置。 In the billet end face grinding apparatus according to claim 1 or 2.
The billet transfer device horizontally transports a plurality of trays on which billets are placed from the supply side to the discharge side.
The billet is characterized in that the first endless grinding belt for flat surface processing and the second endless grinding belt for flat surface processing are inclined so that the discharge side is higher than the supply side. Both ends grinding device. 請求項１又は２に記載のビレットの両端面研削装置において、
前記ビレット搬送装置の移動方向は、前記第１の平面部加工用無端研削ベルト及び前記第２の平面部加工用無端研削ベルトの研削面の移動方向と鋭角に交差する
ことを特徴とするビレットの両端面研削装置。 In the billet end face grinding apparatus according to claim 1 or 2.
The billet transfer device is characterized in that the moving direction of the billet intersects the moving direction of the grinding surfaces of the first flat surface processing endless grinding belt and the second flat surface processing endless grinding belt at an acute angle. Both ends grinding device. 請求項１又は２に記載のビレットの両端面研削装置において、
前記ビレット搬送装置は、前記第１の昇降装置及び第２の昇降装置に前記第１の面取り用無端研削ベルト及び前記第２の面取り用無端研削ベルトの昇降動作をさせるために、前記トレイの前記搬送位置を検出する位置検出手段を備えた
ことを特徴とするビレットの両端面研削装置。 In the billet end face grinding apparatus according to claim 1 or 2.
The billet transfer device is the said in the tray in order to cause the first elevating device and the second elevating device to raise and lower the first chamfering endless grinding belt and the second chamfering endless grinding belt. A billet end face grinding device characterized by having a position detecting means for detecting a transport position. 請求項１又は２に記載のビレットの両端面研削装置において、
前記ビレット搬送装置に設けられ、前記トレイ上の前記ビレットを前記ビレット搬送装置の搬送路の一方の側に寄せて搬送させる第１の幅寄せ装置と、
前記ビレット搬送装置に設けられ、前記トレイ上の前記ビレットを前記ビレット搬送装
置の搬送路の他方の側に寄せて搬送させる第２の幅寄せ装置と
を備えたことを特徴とするビレットの両端面研削装置。 In the billet end face grinding apparatus according to claim 1 or 2.
A first width-aligning device provided in the billet transfer device, which brings the billet on the tray closer to one side of the transfer path of the billet transfer device,
Both end faces of the billet provided in the billet transfer device and provided with a second width adjusting device for moving the billet on the tray toward the other side of the transfer path of the billet transfer device. Grinding device.
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