JP2016120574A - Workpiece cutting device - Google Patents

Workpiece cutting device Download PDF

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JP2016120574A
JP2016120574A JP2014262565A JP2014262565A JP2016120574A JP 2016120574 A JP2016120574 A JP 2016120574A JP 2014262565 A JP2014262565 A JP 2014262565A JP 2014262565 A JP2014262565 A JP 2014262565A JP 2016120574 A JP2016120574 A JP 2016120574A
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workpiece
turning
rotary cutter
cutting device
work
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JP6450186B2 (en
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政文 脇
Masafumi Waki
政文 脇
賢二郎 前神
Kenjiro Maegami
賢二郎 前神
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Pica Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a workpiece cutting device which can always cut a workpiece from a lower part on a workpiece positioning member side.SOLUTION: A workpiece cutting device 10 is provided with a swiveling table 40 having a workpiece placing surface 40a, a base 30 for rotatably supporting the swiveling table, a workpiece positioning member 60 which is mounted on the base and positions the workpiece W by abutting on the workpiece W on the workpiece placing surface of the swiveling table, and a rotary cutter 70 which cuts the workpiece by ascending from beneath the swiveling table to above the workpiece placing surface. On an approximate rotation center A of the swiveling table, a workpiece abutting surface 61a of the workpiece positioning member is arranged, a rotation center C of the rotary cutter is intersected, and a blade of the rotary cutter is arranged.SELECTED DRAWING: Figure 4

Description

本発明は、長尺材等のワークを切断するワーク切断装置に関するものである。   The present invention relates to a workpiece cutting device for cutting a workpiece such as a long material.

金属製や木製の長尺材を切断するために、特許文献１のようなワーク切断装置が用いられている。このワーク切断装置は、ワーク載置面を有する旋回テーブルと、この旋回テーブルを旋回自在に支持する基台と、この基台の上面に取り付けられ、旋回テーブルのワーク載置面を横切るように配置されたワーク位置決め部材と、旋回テーブルの下方に設けられた円盤状の回転カッターと、この回転カッターを昇降させる昇降機構とを備えている。   In order to cut a metal or wooden long material, a workpiece cutting device as in Patent Document 1 is used. This work cutting device has a swivel table having a work placing surface, a base that supports the swivel table so as to turn freely, and is mounted on the upper surface of the base so as to cross the work placement surface of the swivel table. And a disc-shaped rotary cutter provided below the turning table, and an elevating mechanism for raising and lowering the rotary cutter.

ワーク位置決め部材は、旋回テーブルのワーク載置面に直交するワーク当接面を有しており、当該ワーク当接面は旋回テーブルの旋回中心上に配置されている。回転カッターは、旋回テーブルのワーク載置面に対して刃が垂直になるようにモータの駆動軸に支持され、その回転中心がワーク位置決め部材のワーク当接面から離隔しているとともに、外周に形成された刃が旋回テーブルの旋回中心上に配置されている。旋回テーブルを旋回させると、回転カッターが旋回テーブルとともに旋回して、ワーク位置決め部材のワーク当接面に対する回転カッターの角度が変化する。   The workpiece positioning member has a workpiece contact surface orthogonal to the workpiece placement surface of the turning table, and the workpiece contact surface is disposed on the turning center of the turning table. The rotary cutter is supported by the motor drive shaft so that the blade is perpendicular to the work placement surface of the swivel table, and its rotation center is separated from the work contact surface of the work positioning member, and on the outer periphery. The formed blade is arranged on the turning center of the turning table. When the turning table is turned, the rotating cutter turns together with the turning table, and the angle of the rotating cutter with respect to the work contact surface of the work positioning member changes.

旋回テーブルのワーク載置面上に載置したワークの一側面をワーク位置決め部材のワーク当接面に当接させてワークを位置決めし、回転カッターを旋回テーブルの下方からワーク載置面上方まで上昇させると、ワークが切断される。旋回テーブルを旋回させることにより、ワークの長手方向に対する切断面の角度を所望の値に設定することができる。   Position the work by bringing one side of the work placed on the work placement surface of the swivel table into contact with the work abutment surface of the work positioning member, and lift the rotary cutter from below the swivel table to above the work placement surface. Doing so will cut the workpiece. By turning the turning table, the angle of the cut surface with respect to the longitudinal direction of the workpiece can be set to a desired value.

特開平９−１４１５２０号公報JP-A-9-141520

特許文献１のワーク切断装置では、回転カッターの回転中心がワーク位置決め部材のワーク当接面から離隔しているため、ワークの下面中途部に回転カッターの最上刃が接触し、下面端縁から切断を開始することが困難になることがある。
本発明は上記問題点に鑑みてなされたものであり、ワークを常にワーク位置決め部材側の下部から切断することができるワーク切断装置を提供することを目的とする。 In the workpiece cutting device of Patent Document 1, since the rotation center of the rotary cutter is separated from the workpiece contact surface of the workpiece positioning member, the uppermost blade of the rotary cutter comes into contact with the middle portion of the lower surface of the workpiece and cuts from the lower edge. It may be difficult to start.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a workpiece cutting device that can always cut a workpiece from the lower portion on the workpiece positioning member side.

上記課題を解決するため、本発明では、以下の技術的手段を講じている。
すなわち、第１の発明は、ワーク載置面４０ａを有する旋回テーブル４０と、この旋回テーブル４０を旋回自在に支持する基台３０と、この基台３０に取り付けられ、前記旋回テーブル４０のワーク載置面４０ａ上でワークＷを当接して位置決めをするワーク位置決め部材６０と、前記旋回テーブル４０の下方から前記ワーク載置面４０ａ上方まで移動してワークＷを切断する回転カッター７０とを有しており、前記旋回テーブル４０の略旋回中心Ａ上に、前記ワーク位置決め部材６０のワーク当接面６１ａを配置し、かつ前記回転カッター７０の回転中心Ｃを交差させるとともに前記回転カッター７０の刃を配置していることを特徴とするワーク切断装置である。 In order to solve the above problems, the present invention takes the following technical means.
That is, the first invention is that the turntable 40 having the work placement surface 40a, the base 30 that supports the turntable 40 so as to be turnable, and the work mount of the turntable 40 attached to the base 30. A workpiece positioning member 60 that contacts and positions the workpiece W on the mounting surface 40a; and a rotary cutter 70 that moves from below the turning table 40 to above the workpiece mounting surface 40a to cut the workpiece W. The workpiece contact surface 61a of the workpiece positioning member 60 is disposed on a substantially turning center A of the turning table 40, the rotation center C of the rotary cutter 70 is crossed, and the blade of the rotary cutter 70 is used. It is the workpiece | work cutting device characterized by arrange | positioning.

第２の発明は、第１の発明において、前記ワーク位置決め部材６０が左右一対の当接板６０Ａ、６０Ｂで形成されており、前記一対の当接板６０Ａ、６０Ｂは前記旋回テーブル４０の外周側から旋回中心Ａに向けて半径方向に延設され、前記一対の当接板６０Ａ、６０Ｂの対向端部は旋回中心Ａから離隔しかつ前記ワーク当接面６１ａの裏側に旋回中心Ａを中心とする放射方向と略平行な逃げ傾斜面６１ｂを形成していることを特徴とする。   According to a second invention, in the first invention, the workpiece positioning member 60 is formed of a pair of left and right contact plates 60A and 60B, and the pair of contact plates 60A and 60B are on the outer peripheral side of the turning table 40. Extending in the radial direction from the center of rotation A to the center of rotation A, the opposed end portions of the pair of contact plates 60A and 60B are spaced apart from the center of rotation A and centered around the center of rotation A on the back side of the workpiece contact surface 61a. A relief inclined surface 61b that is substantially parallel to the radiating direction is formed.

第３の発明は、第１または第２の発明において、前記旋回テーブル４０の下方に連結部材１５０を介して下部旋回体５０を設け、前記旋回テーブル４０の外周部と前記下部旋回体５０の外周部とをそれぞれ径外側から及び下方から支持する旋回支持部材１４０を前記基台３０に設けていることを特徴とする。
第４の発明は、第３の発明において、前記基台３０と前記下部旋回体５０との間に、前記ワーク位置決め部材６０のワーク当接面６１ａに対する前記回転カッター７０の角度を調整するために前記旋回テーブル４０を旋回させる旋回駆動機構１１０を設け、前記下部旋回体５０上に取付台９０を昇降させる昇降機構１００を設け、前記取付台９０に前記回転カッター７０と前記回転カッター７０を駆動する回転駆動機構８０とを設けており、この回転駆動機構８０の回転軸８１を前記旋回テーブル４０の旋回中心Ａに直交させていることを特徴とする。 According to a third invention, in the first or second invention, a lower swing body 50 is provided below the swing table 40 via a connecting member 150, and an outer periphery of the swing table 40 and an outer periphery of the lower swing body 50 are provided. The base 30 is provided with a swivel support member 140 that supports the portion from the outside of the diameter and from below.
To adjust the angle of the rotary cutter 70 with respect to the workpiece contact surface 61a of the workpiece positioning member 60 between the base 30 and the lower turning body 50 in the fourth invention. A turning drive mechanism 110 for turning the turning table 40 is provided, and an elevating mechanism 100 for raising and lowering the mounting base 90 is provided on the lower turning body 50, and the rotary cutter 70 and the rotary cutter 70 are driven on the mounting base 90. The rotary drive mechanism 80 is provided, and the rotary shaft 81 of the rotary drive mechanism 80 is orthogonal to the turning center A of the turning table 40.

第５の発明は、第１〜第４の発明のいずれかにおいて、前記旋回テーブル４０上に昇降支持枠１２１を取り付け、この昇降支持枠１２１に前記ワーク載置面４０ａへ遠近移動する昇降台１２２を設け、この昇降台１２２にワークＷの切断位置の両側を上側から押さえる押圧部材１２３を設けており、この押圧部材１２３は前記回転カッター７０の上方を覆うカバー部１２３ａ、１２３ｂを有することを特徴とする。   According to a fifth invention, in any one of the first to fourth inventions, an elevating support frame 121 is attached on the turning table 40, and the elevating table 122 moves to the elevating support frame 121 toward and away from the work placing surface 40a. And a pressing member 123 that presses both sides of the cutting position of the workpiece W from above. The pressing member 123 includes cover portions 123a and 123b that cover the upper side of the rotary cutter 70. And

第６の発明は、第１〜第５の発明のいずれかにおいて、前記旋回テーブル４０に、前記ワーク位置決め部材６０のワーク当接面６１ａと交差していて前記回転カッター７０の外周が上方突出可能な開口部４０ｂを形成しており、前記旋回テーブル４０の下面には前記回転カッター７０が下降しているときに前記開口部４０ｂを開閉自在に閉鎖するシャッタ部材２００を設けていることを特徴とする。   In a sixth invention according to any one of the first to fifth inventions, the turning table 40 intersects with the workpiece contact surface 61a of the workpiece positioning member 60 and the outer periphery of the rotary cutter 70 can protrude upward. The opening 40b is formed, and the lower surface of the turning table 40 is provided with a shutter member 200 for closing the opening 40b so as to be opened and closed when the rotary cutter 70 is lowered. To do.

第１の発明によれば、ワーク当接面６１ａに対する回転カッター７０の角度が変化しても、回転カッター７０の最上位の部位は常にワークＷのワーク当接面６１ａ側の面の真下に位置するため、ワークＷを常に下面端縁から切断することができる。
第２の発明によれば、一対の当接板６０Ａ、６０Ｂの対向端部に逃げ傾斜面６１ｂを形成しているため、回転カッター７０の可動範囲を広くすることができるので、ワーク当接面６１ａに対する回転カッター７０の角度の設定範囲を広くすることができる。 According to the first invention, even if the angle of the rotary cutter 70 with respect to the workpiece contact surface 61a changes, the uppermost portion of the rotary cutter 70 is always positioned directly below the surface of the workpiece W on the workpiece contact surface 61a side. Therefore, the workpiece W can always be cut from the lower surface edge.
According to the second invention, since the relief inclined surface 61b is formed at the opposed end portions of the pair of contact plates 60A, 60B, the movable range of the rotary cutter 70 can be widened, so the workpiece contact surface The setting range of the angle of the rotary cutter 70 relative to 61a can be widened.

第３の発明によれば、旋回テーブル４０と一体的に旋回する下部旋回体５０を設けるとともに、旋回テーブル４０と下部旋回体５０が旋回支持部材１４０を介して基台３０に支持されているため、旋回テーブル４０の芯振れを抑制することができる。
第４の発明によれば、旋回テーブル４０、下部旋回体５０、回転駆動機構８０及び昇降機構１００を１つのユニットとして取り扱うことができるため、生産性やメンテナンス性が向上する。 According to the third aspect of the invention, the lower turning body 50 that turns integrally with the turning table 40 is provided, and the turning table 40 and the lower turning body 50 are supported by the base 30 via the turning support member 140. The center runout of the turning table 40 can be suppressed.
According to the fourth aspect, since the turning table 40, the lower turning body 50, the rotation drive mechanism 80, and the lifting mechanism 100 can be handled as one unit, productivity and maintainability are improved.

第５の発明によれば、旋回テーブル４０とともに旋回可能な押圧部材１２３によりワークＷの切断位置の両側を上側から押さえるので、切断時のワークＷを確実に固定でき、切断の精度を向上でき、また、押圧部材１２３が回転カッター７０の上方を覆うカバー部１２３ａ、１２３ｂを有しているため、切削粉の飛散を防止できる。
第６の発明によれば、回転カッター７０が下降しているときに旋回テーブル４０の開口部４０ｂを開閉自在に閉鎖するシャッタ部材２００を設けているため、ワークＷの有無に関わらず、非切断時の開口部４０ｂを閉鎖しておくことができる。 According to the fifth aspect of the invention, since both sides of the cutting position of the workpiece W are pressed from the upper side by the pressing member 123 that can turn together with the turning table 40, the workpiece W at the time of cutting can be fixed securely, and the cutting accuracy can be improved. Moreover, since the pressing member 123 has the cover parts 123a and 123b covering the upper side of the rotary cutter 70, scattering of cutting powder can be prevented.
According to the sixth aspect of the invention, since the shutter member 200 that closes the opening 40b of the turning table 40 so as to be freely opened and closed when the rotary cutter 70 is lowered is provided, it is not cut regardless of the presence or absence of the workpiece W. The opening 40b at the time can be closed.

本発明の実施形態のワーク切断装置の全体を示す平面図である。It is a top view which shows the whole workpiece | work cutting device of embodiment of this invention. ワーク切断装置の正面図である。It is a front view of a workpiece cutting device. ワーク切断装置の右側面図であるIt is a right view of a workpiece cutting device. ワーク切断装置の要部拡大図である。It is a principal part enlarged view of a workpiece | work cutting device. 旋回テーブルを下面側から見た図である。It is the figure which looked at the turning table from the lower surface side. 図５のＶＩ−ＶＩ線断面図である。FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. 切断完了時のワーク切断装置の右側面図である。It is a right view of the workpiece cutting device at the time of completion of cutting. 回転カッターをワーク当接面に対して傾斜させた状態を示す平面図である。It is a top view which shows the state which inclined the rotation cutter with respect to the workpiece | work contact surface.

以下、本発明のワーク切断装置の実施形態を図面に基づき詳しく説明する。図１に示すワーク切断装置１０は、ワーク位置決め装置２０によって位置決めされた長尺のワークＷを所定の長さに切断するために用いられるバックゲージ付の自動角度切断機である。
図１〜８において、ワーク切断装置１０は、四角枠状の基台３０と、基台３０の上部に支持された円盤状の旋回テーブル４０と、基台３０の下部に支持された円盤状の下部旋回体５０と、基台３０の上面に取り付けられた左右一対の当接板６０Ａ、６０Ｂを有するワーク位置決め部材６０と、旋回テーブル４０の下方に設けられた円盤状の回転カッター７０と、回転カッター７０を回転駆動する回転駆動機構８０と、回転駆動機構８０を支持する取付台９０と、取付台９０を昇降させる昇降機構１００と、基台３０と下部旋回体５０との間に設けられた旋回駆動機構１１０と、旋回テーブル４０上に設けられたワーク押さえ機構１２０と、基台３０上に設けられた制御部１３０とを備えている。 Hereinafter, an embodiment of a workpiece cutting device of the present invention will be described in detail with reference to the drawings. A workpiece cutting device 10 shown in FIG. 1 is an automatic angle cutting machine with a back gauge used for cutting a long workpiece W positioned by a workpiece positioning device 20 into a predetermined length.
1 to 8, the workpiece cutting device 10 includes a square frame-shaped base 30, a disk-shaped turning table 40 supported on the upper part of the base 30, and a disk-shaped support supported on the lower part of the base 30. A lower revolving unit 50, a workpiece positioning member 60 having a pair of left and right contact plates 60A and 60B attached to the upper surface of the base 30, a disk-shaped rotary cutter 70 provided below the revolving table 40, and a rotation The rotary drive mechanism 80 that rotates the cutter 70, the mounting base 90 that supports the rotational drive mechanism 80, the lifting mechanism 100 that lifts and lowers the mounting base 90, and the base 30 and the lower swing body 50 are provided. A turning drive mechanism 110, a work pressing mechanism 120 provided on the turning table 40, and a control unit 130 provided on the base 30 are provided.

基台３０は、前後方向及び左右方向に間隔をおいて配置された４本の支柱３１と、４本の支柱３１のそれぞれの下端部に設けられた脚体３２と、４本の支柱３１の上端部に水平に支持された頂壁３３と、４本の支柱３１の下部に水平に支持された底壁３４とを有している。
頂壁３３には円形の開口３３ａが形成されており、この開口３３ａ内に旋回テーブル４０が旋回自在に収容されている。開口３３ａの周縁部には、複数の旋回支持部材１４０（図４〜６参照）が周方向に所定間隔をおいて取り付けられている。 The base 30 includes four struts 31 arranged at intervals in the front-rear direction and the left-right direction, leg bodies 32 provided at the respective lower ends of the four struts 31, and four struts 31. The top wall 33 is supported horizontally at the upper end, and the bottom wall 34 is supported horizontally at the lower part of the four columns 31.
A circular opening 33a is formed in the top wall 33, and a turning table 40 is rotatably accommodated in the opening 33a. A plurality of turning support members 140 (see FIGS. 4 to 6) are attached to the peripheral edge of the opening 33a at predetermined intervals in the circumferential direction.

底壁３４には円形の開口３４ａが形成されており、この開口３４ａ内に下部旋回体５０が旋回自在に収容されている。下部旋回体５０は、一対の棒状の連結部材１５０を介して旋回テーブル４０と連結されており、旋回テーブル４０と一体的に旋回する。開口３４ａの周縁部には、複数の旋回支持部材１４０が周方向に所定間隔をおいて取り付けられている。   A circular opening 34a is formed in the bottom wall 34, and a lower swing body 50 is rotatably accommodated in the opening 34a. The lower turning body 50 is connected to the turning table 40 via a pair of rod-shaped connecting members 150 and turns integrally with the turning table 40. A plurality of turning support members 140 are attached to the peripheral edge of the opening 34a at a predetermined interval in the circumferential direction.

旋回支持部材１４０は、旋回テーブル４０または下部旋回体５０の外周部の下面に当接して横軸周りに従動回転する第１ローラ１４１と、旋回テーブル４０または下部旋回体５０の外周部の側面に当接して縦軸周りに従動回転する第２ローラ１４２とを有しており、旋回テーブル４０及び下部旋回体５０の外周部を径外側から及び下方から旋回自在に支持する。   The swivel support member 140 is in contact with the lower surface of the outer peripheral portion of the swivel table 40 or the lower swivel body 50 and is driven on the side surface of the outer peripheral portion of the swivel table 40 or the lower swirl member 50. It has a second roller 142 that abuts and rotates following the longitudinal axis, and supports the outer peripheral portions of the turning table 40 and the lower turning body 50 so as to be turnable from the outside and from below.

旋回テーブル４０は下部旋回体５０と一体的に旋回し、かつ旋回テーブル４０及び下部旋回体５０の外周部をそれぞれ径外側から及び下方から支持する旋回支持部材１４０を基台３０に設けたことにより、旋回テーブル４０の芯振れを抑制することができるため、ワークＷの切断角度を精度良く設定することができる。
旋回テーブル４０の上面は平坦なワーク載置面４０ａとされている。旋回テーブル４０は、その直径方向に延びるスリット状の開口部４０ｂ（図４〜６参照）が形成されている。この開口部４０ｂは、当接板６０Ａ、６０Ｂのワーク当接面６１ａと交差するように延びており、かつ旋回テーブル４０を厚さ方向に貫通している。 The swivel table 40 is swung integrally with the lower swivel body 50, and the swivel support member 140 that supports the outer peripheral portions of the swivel table 40 and the lower swivel body 50 from the outside and the lower side is provided on the base 30. Since the center swing of the turning table 40 can be suppressed, the cutting angle of the workpiece W can be set with high accuracy.
The upper surface of the turning table 40 is a flat work placement surface 40a. The turning table 40 is formed with a slit-like opening 40b (see FIGS. 4 to 6) extending in the diameter direction. The opening 40b extends so as to intersect with the workpiece contact surfaces 61a of the contact plates 60A and 60B, and penetrates the turntable 40 in the thickness direction.

基台３０の頂壁３３の上面は旋回テーブル４０のワーク載置面４０ａと略面一になっている。頂壁３３の上面にはワーク位置決め部材６０を構成する当接板６０Ａ、６０Ｂが取り付けられている。
当接板６０Ａ、６０Ｂは断面Ｌ字形の部材で、ワーク載置面４０ａから垂直に起立する当接部６１と、当接部６１の下端から後方水平方向に突出する取付部６２とを有する。当接部６１の前面はワーク当接面６１ａとされている。取付部６２は基台３０の頂壁３３の上面に固定されている。 The top surface of the top wall 33 of the base 30 is substantially flush with the work placement surface 40 a of the turning table 40. Abutting plates 60 </ b> A and 60 </ b> B constituting the workpiece positioning member 60 are attached to the upper surface of the top wall 33.
The contact plates 60 </ b> A and 60 </ b> B are members having an L-shaped cross section, and include a contact portion 61 that stands vertically from the workpiece placement surface 40 a and an attachment portion 62 that protrudes in the rearward horizontal direction from the lower end of the contact portion 61. The front surface of the contact portion 61 is a workpiece contact surface 61a. The mounting portion 62 is fixed to the upper surface of the top wall 33 of the base 30.

図１、４、８、７に示すように、当接板６０Ａ、６０Ｂは、旋回テーブル４０の外周側から旋回中心Ａに向けて半径方向に延設されており、当接板６０Ａの一方の端部と当接板６０Ｂの一方の端部とが互いに対向し、かつこれらの対向端部は旋回テーブル４０の旋回中心Ａから離隔している。当接板６０Ａ、６０Ｂは、ワーク当接面６１ａを含む平面が旋回テーブル４０の旋回中心Ａ上に位置するように配置されている。   As shown in FIGS. 1, 4, 8, and 7, the contact plates 60A and 60B are extended in the radial direction from the outer peripheral side of the turning table 40 toward the turning center A, and one of the contact plates 60A. The end portion and one end portion of the contact plate 60 </ b> B face each other, and these opposed end portions are separated from the turning center A of the turning table 40. The contact plates 60 </ b> A and 60 </ b> B are arranged such that a plane including the workpiece contact surface 61 a is positioned on the turning center A of the turning table 40.

当接板６０Ａ、６０Ｂの対向端部には逃げ傾斜面６１ｂが形成されている。逃げ傾斜面６１ｂは、ワーク当接面６１ａの裏側において、旋回テーブル４０の旋回中心Ａを中心とする放射方向と略平行に形成されている。逃げ傾斜面６１ｂのワーク当接面６１ａに対する角度αは３０°である。このような逃げ傾斜面６１ｂを形成することによって回転カッター７０の旋回中心Ａ周りの可動範囲が広がるため、ワーク当接面６１ａに対する回転カ
ッター７０の角度βの設定範囲を広くすることができる。 Relief inclined surfaces 61b are formed at the opposite ends of the contact plates 60A and 60B. The escape inclined surface 61b is formed substantially in parallel with the radial direction around the turning center A of the turning table 40 on the back side of the workpiece contact surface 61a. An angle α of the escape inclined surface 61b with respect to the workpiece contact surface 61a is 30 °. By forming such a relief inclined surface 61b, the movable range around the turning center A of the rotary cutter 70 is widened, so the setting range of the angle β of the rotary cutter 70 with respect to the workpiece contact surface 61a can be widened.

図２〜４、７において、回転カッター７０の外周部には全周に亘って鋸状の刃が形成されており、この刃が旋回中心Ａ上に配置されている。回転カッター７０は、回転駆動機構８０の回転軸８１によって刃が垂直になるように支持されており、旋回テーブル４０の開口部４０ｂと平行で、かつ開口部４０ｂの幅方向中心と対向するとともに、回転中心Ｃが旋回テーブル４０の旋回中心Ａと交差（直交）している。   2 to 4 and 7, a saw-like blade is formed on the outer peripheral portion of the rotary cutter 70 over the entire circumference, and this blade is disposed on the turning center A. The rotary cutter 70 is supported by the rotary shaft 81 of the rotary drive mechanism 80 so that the blade is vertical, is parallel to the opening 40b of the turning table 40 and faces the center in the width direction of the opening 40b. The rotation center C intersects (orthogonally) the turning center A of the turning table 40.

回転駆動機構８０は、取付台９０の上面側に設けられた回転軸８１と、取付台９０の下面側に設けられたモータ８２とを有している。
回転軸８１は、取付台９０の上面に固定された軸受部材８３によって軸芯周りに回転自在に支持されている。回転軸８１の一端には回転カッター７０が取り付けられ、他端にはプーリ８４が取り付けられている。回転軸８１の軸芯の回転中心Ｃは、側面視でワーク載置面４０ａと平行であり、平面視でワーク当接面６１ａと一致する。 The rotation drive mechanism 80 includes a rotation shaft 81 provided on the upper surface side of the mounting base 90 and a motor 82 provided on the lower surface side of the mounting base 90.
The rotating shaft 81 is rotatably supported around the axis by a bearing member 83 fixed to the upper surface of the mounting base 90. A rotary cutter 70 is attached to one end of the rotary shaft 81, and a pulley 84 is attached to the other end. The rotation center C of the axis of the rotation shaft 81 is parallel to the workpiece placement surface 40a in a side view and coincides with the workpiece contact surface 61a in a plan view.

モータ８２は、取付台９０の下面に固定されたブラケット８５によって吊り下げ支持されている。モータ８２の駆動軸にはプーリ８６が取り付けられている。このプーリ８６は、ベルト８７を介して回転軸８１のプーリ８４に連結されている。
昇降機構１００は、取付台９０の上面に取り付けられた一対の第１ガイド部材１６０と、取付台９０の下面に取り付けられた一対の第２ガイド部材１７０と、下部旋回体５０の上面に取り付けられたエアシリンダ等のリニアアクチュエータ１８０と、そのピストンの先端を取付台９０に連結するフレキシブルジョイント１９０とを有する。第１ガイド部材１６０と第２ガイド部材１７０は連結部材１５０に摺動自在に嵌合しており、取付台９０は連結部材１５０に沿って上下に移動可能となっている。リニアアクチュエータ１８０を駆動すると、取付台９０が移動して回転駆動機構８０及び回転カッター７０が昇降する。 The motor 82 is suspended and supported by a bracket 85 fixed to the lower surface of the mounting base 90. A pulley 86 is attached to the drive shaft of the motor 82. The pulley 86 is connected to the pulley 84 of the rotating shaft 81 through a belt 87.
The lifting mechanism 100 is attached to a pair of first guide members 160 attached to the upper surface of the mounting base 90, a pair of second guide members 170 attached to the lower surface of the mounting base 90, and the upper surface of the lower swing body 50. And a linear actuator 180 such as an air cylinder, and a flexible joint 190 that connects the tip of the piston to the mounting base 90. The first guide member 160 and the second guide member 170 are slidably fitted to the connecting member 150, and the mounting base 90 is movable up and down along the connecting member 150. When the linear actuator 180 is driven, the mounting base 90 moves and the rotary drive mechanism 80 and the rotary cutter 70 move up and down.

旋回テーブル４０に連結された下部旋回体５０上に回転駆動機構８０及び昇降機構１００を設けているので、旋回テーブル４０、下部旋回体５０、回転駆動機構８０及び昇降機構１００を１つのユニットとして取り扱うことができる。このようにすると、当該ユニットを基台３０とは別の場所で組み立てて基台３０に組み付けるようにすることもできるため、生産性やメンテナンス性が向上する。   Since the rotary drive mechanism 80 and the lifting mechanism 100 are provided on the lower swing body 50 connected to the swing table 40, the swing table 40, the lower swing body 50, the rotation drive mechanism 80, and the lift mechanism 100 are handled as one unit. be able to. In this way, the unit can be assembled at a location different from the base 30 and assembled to the base 30, so that productivity and maintainability are improved.

旋回駆動機構１１０は、下部旋回体５０の下面の中心部に固定された軸１１１と、この軸１１１をギヤ伝動等で旋回駆動するモータ等のアクチュエータ１１２とを有している。アクチュエータ１１２に通電すると、軸１１１が回転して下部旋回体５０及び旋回テーブル４０が旋回中心Ａを中心として旋回する。下部旋回体５０及び旋回テーブル４０が旋回すると、当接板６０Ａ、６０Ｂのワーク当接面６１ａに対する回転カッター７０の角度βが変化する。   The turning drive mechanism 110 has a shaft 111 fixed to the center of the lower surface of the lower turning body 50, and an actuator 112 such as a motor that drives the shaft 111 to turn by gear transmission or the like. When the actuator 112 is energized, the shaft 111 rotates and the lower turning body 50 and the turning table 40 turn about the turning center A. When the lower turning body 50 and the turning table 40 are turned, the angle β of the rotary cutter 70 with respect to the workpiece contact surface 61a of the contact plates 60A and 60B changes.

なお、本実施形態では、旋回テーブル４０を中心部で旋回駆動するため、旋回テーブル４０を外周部で旋回駆動する場合と比べて芯振れが少なく、旋回テーブル４０の旋回角度を精度良く設定できる。
図１〜３、７、８において、ワーク押さえ機構１２０は、旋回テーブル４０の上面に取り付けられた昇降支持枠１２１と、この昇降支持枠１２１上に昇降可能に設けられ、ワーク載置面４０ａへ遠近移動する昇降台１２２と、この昇降台１２２に設けられた押圧部材１２３と、昇降台１２２を昇降させるエアシリンダ等のリニアアクチュエータ１２４とを有する。 In the present embodiment, the turning table 40 is driven to turn at the center, and therefore, there is less centering than when the turning table 40 is driven to turn at the outer periphery, and the turning angle of the turning table 40 can be set with high accuracy.
1-3, 7 and 8, the work pressing mechanism 120 is provided on the upper surface of the turning table 40, and the lifting support frame 121 is provided on the lifting support frame 121 so as to be lifted and lowered to the workpiece mounting surface 40a. It has a lift 122 that moves far and near, a pressing member 123 provided on the lift 122, and a linear actuator 124 such as an air cylinder that lifts and lowers the lift 122.

押圧部材１２３は、正面視が縦長の長方形で、側面視が台形状の内部空洞、下部が開放された空洞体となっており、前部１２３ａの左右幅が後部１２３ｂより広幅になっている。押圧部材１２３の前部１２３ａの下端はワークＷの上面の切断位置の左右両側を押圧する押圧部となっており、この押圧部はワークＷとの接触面積を増大するために帯板を固着しておいてもよい。また、後部１２３ｂは前部１２３ａより下方に突出していてもよい。押圧部材１２３の前部１２３ａ及び後部１２３ｂは下部開放のカバー部であり、旋回テーブル４０から上方へ突出する回転カッター７０の上部を覆うことができるので、切削粉の飛散を防止できる。   The pressing member 123 is a vertically long rectangle in front view, a trapezoidal internal cavity in side view, and a hollow body in which the lower part is opened, and the left and right width of the front portion 123a is wider than that of the rear portion 123b. The lower end of the front portion 123a of the pressing member 123 serves as a pressing portion that presses both the left and right sides of the cutting position on the upper surface of the workpiece W, and this pressing portion fixes the band plate in order to increase the contact area with the workpiece W. You may keep it. Further, the rear portion 123b may protrude downward from the front portion 123a. The front part 123a and the rear part 123b of the pressing member 123 are cover parts that are open at the bottom, and can cover the upper part of the rotary cutter 70 that protrudes upward from the turning table 40, so that scattering of cutting powder can be prevented.

押圧部材１２３の後部１２３ｂの左右幅は、当接板６０Ａ、６０Ｂの対向端部間に入り
得、かつ旋回テーブル４０がワーク当接面６１ａに対して３０°、すなわち図１の姿勢から６０°旋回したときに、当接板６０Ａ、６０Ｂと干渉しない寸法になっており、当接板６０Ａ、６０Ｂの上下寸法よりも高さが小さいワークＷを切断するときも、当接板６０Ａ、６０Ｂの対向端部間に入って、前部１２３ａの下端の押圧部でワークＷの切断位置の真近の両側を押さえながら、回転カッター７０の上部を覆うことができるようになっている。 The left and right widths of the rear portion 123b of the pressing member 123 can enter between the opposing ends of the contact plates 60A and 60B, and the turning table 40 is 30 ° with respect to the workpiece contact surface 61a, that is, 60 ° from the posture of FIG. The dimensions of the contact plates 60A and 60B are such that they do not interfere with the contact plates 60A and 60B when turning, and when the workpiece W having a height smaller than the vertical dimension of the contact plates 60A and 60B is cut. The upper portion of the rotary cutter 70 can be covered while entering between the opposing end portions and pressing both sides near the cutting position of the workpiece W with the pressing portion at the lower end of the front portion 123a.

なお、押圧部材１２３はワークＷを押さえる押圧部と回転カッター７０を覆うカバー部とを兼ねているため、押圧部とカバー部とを別々に設ける場合と比べて装置構成が簡素になり、製造コストが低減する。
昇降支持枠１２１の下端部の前面には吸込口１２１ａが設けられており、図示しないが、この吸込口１２１ａにはホースを介してサクション装置が接続されている。このサクション装置を駆動すると、ワークＷの切削屑が吸込口１２１ａに吸い込まれ、ホースを介して排出位置に排出される。したがって、旋回テーブル４０のワーク載置面４０ａ上に切断屑が滞留するのを抑制することができる。 In addition, since the pressing member 123 serves as both a pressing portion that holds the workpiece W and a cover portion that covers the rotary cutter 70, the apparatus configuration is simplified and the manufacturing cost is reduced as compared with the case where the pressing portion and the cover portion are provided separately. Is reduced.
A suction port 121a is provided on the front surface of the lower end portion of the lifting support frame 121. Although not shown, a suction device is connected to the suction port 121a via a hose. When this suction device is driven, the cutting waste of the workpiece W is sucked into the suction port 121a and discharged to the discharge position through the hose. Therefore, it is possible to suppress cutting waste from staying on the work placement surface 40a of the turning table 40.

制御部１３０は、操作ボタン群１３１と、表示部１３２と、マイクロコンピュータ（図示せず）とを有する。ユーザが操作ボタン群１３１を介してワークＷの長さ、切断長さ及び切断面の角度βを入力すると、マイクロコンピュータがワーク位置決め装置２０（詳細は後述）のバックゲージ２２の位置を算出し、ステッピングモータ２３を駆動してバックゲージ２２を当該位置に移動させる。   The control unit 130 includes an operation button group 131, a display unit 132, and a microcomputer (not shown). When the user inputs the length of the workpiece W, the cutting length, and the angle β of the cutting plane via the operation button group 131, the microcomputer calculates the position of the back gauge 22 of the workpiece positioning device 20 (details will be described later) The stepping motor 23 is driven to move the back gauge 22 to the position.

なお、本実施形態では、ワークＷの長さ、切断長さ及び角度βを複数パターン登録可能で、かつ登録した情報をワンタッチで呼び出せるようになっている。このようにすると、ユーザの情報入力の手間が低減するため、ワーク切断装置１０の使い勝手が向上する。
図５及び図６に示すように、旋回テーブル４０の下面には、開口部４０ｂを開閉するシャッタ部材２００と、シャッタ部材２００を駆動するソレノイド２１０とが設けられている。シャッタ部材２００は断面Ｌ字形の板状部材で、摺動片２０1と取付片２０２とを有する。摺動片２０1は、旋回テーブル４０の下面に形成された浅い凹部４０ｃに収容されており、凹部４０ｃの底面に沿って旋回テーブル４０の径方向に摺動可能となっている。取付片２０２はソレノイド２１０のプランジャ２１１に取り付けられている。 In the present embodiment, a plurality of patterns of the length, cutting length, and angle β of the workpiece W can be registered, and the registered information can be called with one touch. In this way, the user's trouble of inputting information is reduced, so that the usability of the workpiece cutting device 10 is improved.
As shown in FIGS. 5 and 6, the lower surface of the turntable 40 is provided with a shutter member 200 that opens and closes the opening 40 b and a solenoid 210 that drives the shutter member 200. The shutter member 200 is a plate-like member having an L-shaped cross section, and has a sliding piece 201 and an attachment piece 202. The sliding piece 201 is accommodated in a shallow recess 40c formed on the lower surface of the turntable 40, and can slide in the radial direction of the turntable 40 along the bottom surface of the recess 40c. The attachment piece 202 is attached to the plunger 211 of the solenoid 210.

シャッタ部材２００は、ソレノイド２１０に通電しない状態では、摺動片２０１が開口部４０ｂを閉鎖しており、回転カッター７０が回転しながら上昇してくるとき、ソレノイド２１０に通電して摺動片２０１を摺動させて開口部４０ｂを開放する。
ワーク位置決め装置２０（図１参照）は、ワーク載置面４０ａ上にワークＷを位置決めするためのもので、支持台２１と、バックゲージ２２と、ステッピングモータ２３とを備えている。 In the state where the solenoid 210 is not energized, the shutter member 200 closes the opening 40b. When the rotary cutter 70 moves up while rotating, the shutter member 200 energizes the solenoid 210 to slide. To open the opening 40b.
The workpiece positioning device 20 (see FIG. 1) is for positioning the workpiece W on the workpiece placement surface 40a, and includes a support base 21, a back gauge 22, and a stepping motor 23.

支持台２１は、フレーム２１ａと、左右方向に一定間隔をおいてフレーム２１ａの上部に取り付けられた複数のローラ２１ｂとを有している。
バックゲージ２２は、支持台２１の上面に左右方向に摺動自在に支持されている。ステッピングモータ２３は支持台２１に取り付けられ、バックゲージ２２を左右方向に移動させる。バックゲージ２２には、ワークＷの一端が押し当てられる。 The support base 21 includes a frame 21a and a plurality of rollers 21b attached to the upper portion of the frame 21a at regular intervals in the left-right direction.
The back gauge 22 is supported on the upper surface of the support base 21 so as to be slidable in the left-right direction. The stepping motor 23 is attached to the support base 21 and moves the back gauge 22 in the left-right direction. One end of the workpiece W is pressed against the back gauge 22.

次に、ワーク切断装置１０の動作を説明する。ここでは、回転カッター７０の角度βを３０°に設定してワークＷを切断する場合について説明する。
まず、ワークＷの長さ、切断長さ及び切断角度βを制御部１３０に入力してバックゲージ２２を目的位置に移動させるとともに、旋回テーブル４０を旋回中心Ａ周りに旋回させて、図８に一点鎖線で示すように、回転カッター７０が当接板６０Ａ、６０Ｂのワーク当接面６１ａに対して角度β（＝３０°）傾斜した状態にする。 Next, the operation of the workpiece cutting device 10 will be described. Here, the case where the angle β of the rotary cutter 70 is set to 30 ° and the workpiece W is cut will be described.
First, the length, cutting length, and cutting angle β of the workpiece W are input to the control unit 130 to move the back gauge 22 to the target position, and the turning table 40 is turned around the turning center A, as shown in FIG. As indicated by the alternate long and short dash line, the rotary cutter 70 is inclined at an angle β (= 30 °) with respect to the workpiece contact surface 61a of the contact plates 60A and 60B.

次に、ワークＷをワーク切断装置１０と支持台２１の間に架け渡してワークＷの一端をバックゲージ２２に当接させるとともに、ワークＷの一側面を当接板６０Ａ、６０Ｂのワーク当接面６１ａに当接させ、その一側面を旋回中心Ａ上に配置する。
そして、ワーク押さえ機構１２０の押圧部材１２３を下降させる。図３に二点鎖線で示すように、押圧部材１２３の後部１２３ｂの下端部が当接板６０Ａ、６０Ｂ間に入り、前
部１２３ａの下端押圧部がワークＷの切断位置両側直近の上面を押圧してワークＷを固定する。 Next, the workpiece W is bridged between the workpiece cutting device 10 and the support base 21 so that one end of the workpiece W is brought into contact with the back gauge 22 and one side surface of the workpiece W is brought into contact with the workpieces of the contact plates 60A and 60B. The side surface 61a is brought into contact with the surface 61a and one side surface thereof is disposed on the turning center A.
Then, the pressing member 123 of the workpiece pressing mechanism 120 is lowered. 3, the lower end portion of the rear portion 123b of the pressing member 123 enters between the contact plates 60A and 60B, and the lower end pressing portion of the front portion 123a presses the upper surface closest to both sides of the workpiece W cutting position. Then, the work W is fixed.

次に、回転カッター７０が回転するとともに取付台９０が上昇すると、シャッタ部材２００が旋回テーブル４０の開口部４０ｂを開放して、回転カッター７０の上部は開口部４０ｂを通って旋回テーブル４０の上方に突出し、回転中心Ｃが旋回中心Ａと直交した回転カッター７０が、ワークＷの下面の当接面６１ａ側の縁から切り込みを入れ、上昇しながらワークＷを切断する。図３に二点鎖線で示すように、回転カッター７０の上部が押圧部材１２３内に入り込んでワークＷが完全に切断されると、取付台９０及び回転カッター７０が停止する。   Next, when the rotary cutter 70 rotates and the mounting base 90 rises, the shutter member 200 opens the opening 40b of the turning table 40, and the upper part of the rotating cutter 70 passes through the opening 40b and is above the turning table 40. The rotary cutter 70 whose rotation center C is perpendicular to the turning center A cuts the workpiece W from the edge of the lower surface of the workpiece W on the side of the contact surface 61a and rises. As shown by a two-dot chain line in FIG. 3, when the upper portion of the rotary cutter 70 enters the pressing member 123 and the workpiece W is completely cut, the mounting base 90 and the rotary cutter 70 are stopped.

なお、ワーク切断装置１０は、図７に示すように、高さＨが当接板６０Ａ、６０Ｂの高さｈよりも高いワークＷを切断することができる。
次に、ワーク切断装置１０の作用効果を説明する。ワーク切断装置１０では、旋回テーブル４０の旋回中心Ａ上に、当接板６０Ａ、６０Ｂのワーク当接面６１ａを含む平面を配置し、かつ回転カッター７０の回転中心Ｃを直交（交差）させるとともに回転カッター７０の刃を配置している。 As shown in FIG. 7, the workpiece cutting device 10 can cut a workpiece W having a height H higher than the height h of the contact plates 60A and 60B.
Next, the effect of the workpiece cutting device 10 will be described. In the workpiece cutting device 10, a plane including the workpiece contact surface 61 a of the contact plates 60 </ b> A and 60 </ b> B is disposed on the turning center A of the turning table 40, and the rotation center C of the rotary cutter 70 is orthogonal (crossed). The blade of the rotary cutter 70 is arranged.

このような構成を有するワーク切断装置１０では、図３に示すように、回転カッター７０の最上位の部位がワークＷのワーク当接面６１ａと当接する側の面（被当接面）の真下に位置しており、ワーク当接面６１ａに対する回転カッター７０の角度β（図８参照）が変化しても、回転カッター７０の最上位の部位は常にワークＷの被当接面の真下に位置している。したがって、ワークＷを切断する際に、回転カッター７０は、必ず最初にワークＷの角部（被当接面の下縁、下面の後端）に接触し、ワークＷの下面の中途部に接触することはない。よって、ワークＷを常に角部から切断することができる。   In the workpiece cutting apparatus 10 having such a configuration, as shown in FIG. 3, the uppermost portion of the rotary cutter 70 is directly below the surface (contacted surface) of the workpiece W that contacts the workpiece contact surface 61 a. Even if the angle β (see FIG. 8) of the rotary cutter 70 with respect to the workpiece contact surface 61a changes, the uppermost portion of the rotary cutter 70 is always positioned directly below the contacted surface of the workpiece W. doing. Therefore, when cutting the workpiece W, the rotary cutter 70 always contacts the corner of the workpiece W (the lower edge of the contacted surface, the rear end of the lower surface), and contacts the middle portion of the lower surface of the workpiece W. Never do. Therefore, the workpiece W can always be cut from the corner.

また、ワーク切断装置１０では、以下に述べるような作用効果も奏する。
ワーク当接面６１ａが旋回テーブル４０の旋回中心Ａよりも後方に位置しているワーク切断装置（以下、「比較例のワーク切断装置」と称する。）に比べて、ワーク切断装置１０では、ワーク当接面６１ａに対する回転カッター７０の角度βの設定範囲を広くすることができる。 In addition, the workpiece cutting device 10 has the following effects.
Compared to a workpiece cutting device in which the workpiece contact surface 61a is located behind the turning center A of the turning table 40 (hereinafter referred to as a “work cutting device of a comparative example”), the workpiece cutting device 10 uses a workpiece. The setting range of the angle β of the rotary cutter 70 with respect to the contact surface 61a can be widened.

すなわち、ワーク切断装置１０では、比較例のワーク切断装置よりも回転カッター７０の旋回中心Ａ周りの可動範囲が広いため、角度βの最小値を比較例のワーク切断装置よりも小さくすることができる。したがって、比較例のワーク切断装置よりも、角度βの設定範囲が広い。
また、比較例のワーク切断装置では、ワーク当接面６１ａが旋回中心Ａから離隔しているため、角度βを変化させると、ワークＷの切断長さが変化する。したがって、ワークＷの位置を補正する必要がある。一方、ワーク切断装置１０では、ワーク当接面６１ａを含む平面が旋回中心Ａ上に配置されているため、角度βを変化させてもワークＷの切断長さは変化しない。したがって、ワークＷの位置を補正する必要がなく、比較例のワーク切断装置に比べて手間が低減する。 That is, in the workpiece cutting device 10, since the movable range around the turning center A of the rotary cutter 70 is wider than that of the workpiece cutting device of the comparative example, the minimum value of the angle β can be made smaller than that of the workpiece cutting device of the comparative example. . Therefore, the setting range of the angle β is wider than that of the workpiece cutting device of the comparative example.
Moreover, in the workpiece cutting device of the comparative example, since the workpiece contact surface 61a is separated from the turning center A, the cutting length of the workpiece W changes when the angle β is changed. Therefore, it is necessary to correct the position of the workpiece W. On the other hand, in the workpiece cutting device 10, since the plane including the workpiece contact surface 61a is arranged on the turning center A, the cutting length of the workpiece W does not change even if the angle β is changed. Therefore, it is not necessary to correct the position of the workpiece W, and labor is reduced compared to the workpiece cutting device of the comparative example.

以上、本発明の具体的な実施形態を説明したが、本発明は斯かる実施形態に限定されない。
例えば、上記実施形態では、旋回テーブル４０の旋回中心Ａ上にワーク位置決め部材６０のワーク当接面６１ａが配置されているが、ワーク当接面６１ａは旋回テーブル４０の旋回中心Ａの近傍に配置されていてもよい。 While specific embodiments of the present invention have been described above, the present invention is not limited to such embodiments.
For example, in the above embodiment, the workpiece contact surface 61 a of the workpiece positioning member 60 is disposed on the turning center A of the turning table 40, but the workpiece contact surface 61 a is disposed in the vicinity of the turning center A of the turning table 40. May be.

また、上記実施形態では、ワーク位置決め部材６０が分離した一対の当接板６０Ａ、６０Ｂで形成されているが、ワーク位置決め部材６０は単一の部材で形成してもよい。
また、ワーク位置決め部材６０の逃げ傾斜面６１ｂのワーク当接面６１ａに対する傾斜角度は３０°以外でもよい。
また、下部旋回体５０を省略したり、シャッタ部材２００を省略したりすることもできる。 Moreover, in the said embodiment, although the workpiece | work positioning member 60 is formed with a pair of contact | abutting plates 60A and 60B which isolate | separated, you may form the workpiece | work positioning member 60 with a single member.
Further, the inclination angle of the relief inclined surface 61b of the workpiece positioning member 60 with respect to the workpiece contact surface 61a may be other than 30 °.
Moreover, the lower turning body 50 can be omitted, or the shutter member 200 can be omitted.

１０ ワーク切断装置
３０ 基台
４０ 旋回テーブル
４０ａ ワーク載置面
４０ｂ 開口部
５０ 下部旋回体
６０ ワーク位置決め部材
６０Ａ 当接板
６０Ｂ 当接板
６１ａ ワーク当接面
６１ｂ 逃げ傾斜面
７０ 回転カッター
８０ 回転駆動機構
１００ 昇降機構
１１０ 旋回駆動機構
１２１ 昇降支持枠
１２２ 昇降台
１２３ 押圧部材
１２３ａ 前部（カバー部）
１２３ｂ 後部（カバー部）
１４０ 旋回支持部材
１５０ 連結部材
２００ シャッタ部材
Ａ 旋回中心
Ｃ 回転中心
Ｗ ワーク DESCRIPTION OF SYMBOLS 10 Work cutting device 30 Base 40 Turning table 40a Work mounting surface 40b Opening part 50 Lower turning body 60 Work positioning member 60A Contact plate 60B Contact plate 61a Work contact surface 61b Escape inclined surface 70 Rotating cutter 80 Rotation drive mechanism DESCRIPTION OF SYMBOLS 100 Elevating mechanism 110 Turning drive mechanism 121 Elevating support frame 122 Elevating stand 123 Pressing member 123a Front part (cover part)
123b Rear part (cover part)
140 Rotation Support Member 150 Connecting Member 200 Shutter Member A Rotation Center C Rotation Center W Workpiece

Claims (6)

ワーク載置面（４０ａ）を有する旋回テーブル（４０）と、この旋回テーブル（４０）を旋回自在に支持する基台（３０）と、この基台（３０）に取り付けられ、前記旋回テーブル（４０）のワーク載置面（４０ａ）上でワーク（Ｗ）を当接して位置決めをするワーク位置決め部材（６０）と、前記旋回テーブル（４０）の下方から前記ワーク載置面（４０ａ）上方まで上昇してワーク（Ｗ）を切断する回転カッター（７０）とを有しており、
前記旋回テーブル（４０）の略旋回中心（Ａ）上に、前記ワーク位置決め部材（６０）のワーク当接面（６１ａ）を配置し、かつ前記回転カッター（７０）の回転中心（Ｃ）を交差させるとともに前記回転カッター（７０）の刃を配置していることを特徴とするワーク切断装置。 A turntable (40) having a work placement surface (40a), a base (30) for rotatably supporting the turntable (40), and the turntable (40) attached to the base (30). ) And a workpiece positioning member (60) for positioning by contacting the workpiece (W) on the workpiece placement surface (40a), and ascending from below the turning table (40) to above the workpiece placement surface (40a). And a rotary cutter (70) for cutting the workpiece (W),
A workpiece contact surface (61a) of the workpiece positioning member (60) is arranged on a substantially turning center (A) of the turning table (40), and intersects the rotation center (C) of the rotary cutter (70). A work cutting device characterized in that the blade of the rotary cutter (70) is disposed. 前記ワーク位置決め部材（６０）は左右一対の当接板（６０Ａ、６０Ｂ）で形成されており、前記一対の当接板（６０Ａ、６０Ｂ）は前記旋回テーブル（４０）の外周側から旋回中心（Ａ）に向けて半径方向に延設され、前記一対の当接板（６０Ａ、６０Ｂ）の対向端部は旋回中心（Ａ）から離隔しかつ前記ワーク当接面（６１ａ）の裏側に旋回中心（Ａ）を中心とする放射方向と略平行な逃げ傾斜面（６１ｂ）を形成していることを特徴とする請求項１に記載のワーク切断装置。   The workpiece positioning member (60) is formed of a pair of left and right contact plates (60A, 60B), and the pair of contact plates (60A, 60B) is pivoted from the outer peripheral side of the swivel table (40) ( A is extended in the radial direction toward A), and the opposed end portions of the pair of contact plates (60A, 60B) are separated from the turning center (A) and are turned to the back side of the workpiece contact surface (61a). The workpiece cutting device according to claim 1, wherein a relief inclined surface (61b) substantially parallel to a radial direction centering on (A) is formed. 前記旋回テーブル（４０）の下方に連結部材（１５０）を介して下部旋回体（５０）を設け、前記旋回テーブル（４０）の外周部と前記下部旋回体（５０）の外周部とをそれぞれ径外側から及び下方から支持する旋回支持部材（１４０）を前記基台（３０）に設けていることを特徴とする請求項１又は２に記載のワーク切断装置。   A lower swivel body (50) is provided below the swivel table (40) via a connecting member (150), and an outer peripheral portion of the swivel table (40) and an outer peripheral portion of the lower swivel body (50) are respectively arranged in diameter. The workpiece cutting device according to claim 1 or 2, wherein a turning support member (140) for supporting from the outside and from below is provided on the base (30). 前記基台（３０）と前記下部旋回体（４０）との間に、前記ワーク位置決め部材（６０）のワーク当接面（６１ａ）に対する前記回転カッター（７０）の角度を調整するために前記旋回テーブル（４０）を旋回させる旋回駆動機構（１１０）を設け、前記下部旋回体（４０）上に取付台（９０）を昇降させる昇降機構（１００）を設け、前記取付台（９０）に前記回転カッター（７０）と前記回転カッター（７０）を駆動する回転駆動機構（８０）とを設けており、この回転駆動機構（８０）の回転軸（８１）を前記旋回テーブル（４０）の旋回中心（Ａ）に直交させていることを特徴とする請求項３に記載のワーク切断装置。   In order to adjust the angle of the rotary cutter (70) with respect to the work contact surface (61a) of the work positioning member (60) between the base (30) and the lower turning body (40) A turning drive mechanism (110) for turning the table (40) is provided, an elevating mechanism (100) for raising and lowering the mounting base (90) is provided on the lower turning body (40), and the rotation is performed on the mounting base (90). A cutter (70) and a rotary drive mechanism (80) for driving the rotary cutter (70) are provided, and the rotary shaft (81) of the rotary drive mechanism (80) is set to the turning center ( The workpiece cutting device according to claim 3, wherein the workpiece cutting device is orthogonal to A). 前記旋回テーブル（４０）上に昇降支持枠（１２１）を取り付け、この昇降支持枠（１２１）に前記ワーク載置面（４０ａ）へ遠近移動する昇降台（１２２）を設け、この昇降台（１２２）にワーク（Ｗ）の切断位置の両側を上側から押さえる押圧部材（１２３）を設けており、この押圧部材（１２３）は前記回転カッター（７０）の上方を覆うカバー部（１２３ａ、１２３ｂ）を有することを特徴とする請求項１〜４のいずれかに記載のワーク切断装置。   An elevating support frame (121) is mounted on the turning table (40), and an elevating table (122) that moves to and from the work placement surface (40a) is provided on the elevating support frame (121). ) Is provided with a pressing member (123) that presses both sides of the cutting position of the workpiece (W) from above, and this pressing member (123) covers the cover portions (123a, 123b) covering the upper side of the rotary cutter (70). The workpiece cutting device according to claim 1, wherein the workpiece cutting device is provided. 前記旋回テーブル（４０）には、前記ワーク位置決め部材（６０）のワーク当接面（６１ａ）と交差していて前記回転カッター（７０）の外周が上方突出可能な開口部（４０ｂ）を形成しており、前記旋回テーブル（４０）の下面には前記回転カッター（７０）が下降しているときに前記開口部（４０ｂ）を開閉自在に閉鎖するシャッタ部材（２００）を設けていることを特徴とする請求項１〜５のいずれかに記載のワーク切断装置。   The turning table (40) is formed with an opening (40b) that intersects the work contact surface (61a) of the work positioning member (60) and from which the outer periphery of the rotary cutter (70) can protrude upward. A shutter member (200) is provided on the lower surface of the swivel table (40) to close the opening (40b) so as to be freely opened and closed when the rotary cutter (70) is lowered. The workpiece cutting device according to any one of claims 1 to 5.
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JP2021079531A (en) * 2019-11-18 2021-05-27 王磊 Cutting device for metallic thin plate

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