【考案の詳細な説明】 本考案は冷間成形機によつて連続的に成形され
た管状材特に角形管材の両管端のプレスカツトに
よる変形及びかえりを簡易に除去矯正するための
装置に係り、冷間成形機の生産ラインの生産速度
に同調して、ダイセツトのプレスカツトによる定
尺切断の際に発生する角形管材両端の変形及びか
えりを略々完全に除去矯正することを目的とする
ものである。即ち、プレスカツトの際に発生した
角形管材両端の変形部分は、従来生産ライン外で
再切断（バイト、切断鋸或いは切断砥石による）
して切揃える必要があつた。このため、角形管材
の生産は能率が低く、また歩留りも低いという問
題があつた。[Detailed Description of the Invention] The present invention relates to a device for easily removing and correcting deformations and burrs caused by press cutting of both ends of a tubular material, particularly a square tubular material, continuously formed by a cold forming machine. The purpose of this is to almost completely eliminate and correct the deformation and burrs at both ends of the square tube material that occur when cutting the square tube material to a fixed length using the press cut of the die set, in synchronization with the production speed of the production line of the cold forming machine. . In other words, the deformed parts at both ends of the square tube material that occur during press cutting are conventionally recut outside the production line (using a cutting tool, cutting saw, or cutting wheel).
I had to trim it and trim it. For this reason, the production of rectangular tube materials has had the problem of low efficiency and low yield.
本考案の装置によれば、プレスカツトにより生
じた角形管材の端面変形部が元通り矯正されるこ
ととなり、変形部分を再切断する必要がなく、歩
留りを高めることができる。また、本考案の装置
は、角形管材の冷間成形機ラインに容易に組入れ
ることができ、角形管材の生産性を高めることが
できる。 According to the apparatus of the present invention, the deformed end face of the rectangular tube material caused by press cutting is corrected, and there is no need to re-cut the deformed part, so that the yield can be increased. Moreover, the apparatus of the present invention can be easily incorporated into a cold forming machine line for rectangular tube materials, and can improve the productivity of rectangular tube materials.
以下図面に従つて本考案の角形管材（以下、単
に管材と称する）プレスカツト端面矯正装置の構
造並びに作用に就て詳細に説明する。第１図は本
考案装置の一実施例を示す平面図、第２図は第１
図のＡ−Ａ線矢視生面図である。図面中１は自動
管材チヤツク装置を、２は油圧ピストン機構１６
のロツド先端に端面矯正用ヘツド１３を装着して
なる管材端面矯正ヘツド装置を夫々示している。
３は管材平行移送台装置の一部を示しており、管
材４は平行移送台装置上を第１図矢印の方向に移
送される。第４図は平行移送台装置３（鎖線）に
関連して作動する自動装入及び自動取出し装置を
備えた自動管材チヤツク装置１の構造並びに作用
を示すための説明用略図で、チヤツクは２個１組
の廻動式開閉型半割りチヤツク片５，５′によつ
て構成されており、各チヤツク片５，５′は夫々
例えばロータリーアクチユエータ（油圧駆動）の
ような回転駆動装置７，７′によつて回動させら
れる軸６，６′によつて回動するよう設けられて
いる。８はレバーで移送台装置３の移送面の下方
に固定された軸９によつて揺動可能に枢支されて
おり、該レバー８の先端には管材押出し用突起１
０が突設されており又其の基端部は連結桿１１を
介して半割りチヤツク片５の略々中央部に連結さ
れていて、ロータリーアクチユエーター７に駆動
されて半割りチヤツク片５が矢印の方向に倒れて
チヤツクが開放されると同時にレバー８は連結桿
１１を介して矢印方向に揺動して其の先端に設け
た押出し用突起１０が、ストツパー１２によつて
並列停止している管材中の最先の１本を該ストツ
パー１２を越えて下方へ転出させ、該管材４が移
送台３上を滑下して、開口状態にある半割りチヤ
ツク５′に収納されるよう設けられている。尚上
記のチヤツク装置１は本来長尺の管材を取扱うた
めに同様のチヤツク装置１の複数個を第１及び２
図に示すように管材の長さ方向に並列状に配設さ
れ、協同して同期的に作動するよう設けられてい
る。第３図は管材端面矯正ヘツド装置２の端面矯
正用のヘツド１３を示す部分図で、イは一部断面
正面図、ロはイのＢ−Ｂ矢視側面図である。１４
は端面矯正用ヘツド１３の前方に固設された角錐
体で図に示す本実施例の場合は生産されている角
形管材４に対応するよう四角錐状体を図示してい
る。１５は角錐体１４をプレスカツトによつて変
形した管端に向かつて油圧ピストン機構１６によ
り楔状に押込む際に管端部外周辺を保持する保持
環で管材４の外周に遊嵌する程度の形状及び寸法
の内径形状に形成されている。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure and operation of the press-cut end face correction device for rectangular tubes (hereinafter simply referred to as tubes) according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a plan view showing one embodiment of the device of the present invention, and FIG.
It is a raw surface view taken along the line A-A in the figure. In the drawing, 1 is an automatic pipe material chuck device, and 2 is a hydraulic piston mechanism 16.
A pipe end face straightening head device is shown in which an end face straightening head 13 is attached to the tip of a rod.
Reference numeral 3 indicates a part of a parallel tube transfer table device, and the tube material 4 is transferred on the parallel transfer table device in the direction of the arrow in FIG. FIG. 4 is an explanatory diagram showing the structure and operation of an automatic pipe chuck device 1 equipped with an automatic loading and unloading device that operates in conjunction with a parallel transfer table device 3 (dashed line), in which there are two chucks. It is composed of a pair of rotatable opening/closing half chuck pieces 5, 5', and each chuck piece 5, 5' is connected to a rotary drive device 7, such as a rotary actuator (hydraulic drive), respectively. 7' for rotation by shafts 6, 6'. A lever 8 is pivotally supported by a shaft 9 fixed below the transfer surface of the transfer table device 3, and a tube material extrusion projection 1 is provided at the tip of the lever 8.
0 is provided protrudingly, and its base end is connected to approximately the center of the half-chuck piece 5 via a connecting rod 11, and is driven by a rotary actuator 7 to move the half-chuck piece 5. falls down in the direction of the arrow and the chuck is released, and at the same time the lever 8 swings in the direction of the arrow via the connecting rod 11, and the extrusion protrusion 10 provided at its tip is stopped in parallel by the stopper 12. The first one of the pipes 4 is moved downward past the stopper 12 so that the pipe 4 slides down on the transfer table 3 and is stored in the open half-chuck 5'. It is provided. Note that the chuck device 1 described above originally has a plurality of similar chuck devices 1 as the first and second chuck devices in order to handle long pipe materials.
As shown in the figure, they are arranged in parallel in the length direction of the tube and are provided to work together and synchronously. FIG. 3 is a partial view showing the end face correction head 13 of the pipe material end face correction head device 2, in which A is a partially sectional front view and B is a side view taken along the line B--B of A. 14
1 is a pyramid fixed in front of the head 13 for end face correction, and in the case of this embodiment shown in the figure, the square pyramid is shown to correspond to the square tube material 4 being produced. Reference numeral 15 denotes a retaining ring that holds the outer periphery of the tube end when the pyramid 14 is pressed into a wedge shape by the hydraulic piston mechanism 16 toward the tube end that has been deformed by press cutting, and has a shape that fits loosely around the outer periphery of the tube material 4. It is formed into an inner diameter shape with dimensions of and.
以上に記載した構造を有する本考案の管材端面
矯正装置によつて、管材４のプレスカツトされて
変形した端面を矯正するには、先ず並列状に配設
された管材チヤツク装置１の半割りチヤツク片５
を回転駆動装置７を同時に作動することによつて
チヤツクを開放する方向に（第４図矢印方向）同
期的に回動させれば、レバー８先端の管材押出し
用突起１０は連結桿１１、レバー８の連桿機構を
介して第４図の矢印に示す方向へ円弧を画くよう
に移動して、移送台装置３上にストツパー１２に
よつて並列停止している管材４中の最先の１本を
押出し、該ストツパー１２を越えて下方へ転出さ
せる。此のように転出した１本の管材４は移送台
装置３上を滑下して半割りチヤツク片５′のチヤ
ツク部に嵌入する。次いで回転駆動装置７を作動
して半割りチヤツク片５を、チヤツクを閉鎖する
方向に回動させて、半割りチヤツク片５，５′に
よつて管材４を所定位置にチヤツクする。此の時
上記の連桿機構を介して管材押出し用突起１０は
原位置に後退復帰し、移送台装置３上の残余の管
材４は夫々管材１本分の距離宛前進滑下してスト
ツパー１２の作用によつて並列停止して次回の管
材供給装入に対する準備を完了する。 In order to correct the press-cut and deformed end face of the pipe material 4 using the pipe material end face straightening device of the present invention having the structure described above, first, the half chuck pieces of the pipe material chuck device 1 arranged in parallel are used. 5
By simultaneously operating the rotary drive device 7 to rotate the chuck synchronously in the direction of opening the chuck (in the direction of the arrow in FIG. The first one of the pipes 4 is moved in a circular arc in the direction shown by the arrow in FIG. The book is pushed out and rolled downward past the stopper 12. The single tube member 4 transferred in this way slides down on the transfer table device 3 and is fitted into the chuck portion of the half chuck piece 5'. Next, the rotary drive device 7 is actuated to rotate the half-chuck piece 5 in the direction of closing the chuck, and the tube member 4 is chucked into a predetermined position by the half-chuck pieces 5, 5'. At this time, the tube extrusion protrusion 10 returns to its original position via the above-mentioned connecting rod mechanism, and the remaining tubes 4 on the transfer table device 3 slide forward by a distance of one tube, respectively, to the stopper 12. Due to this action, the pipes are stopped in parallel and preparations for the next tube material supply and charging are completed.
上記の半割りチヤツク片５，５′による管材４
のチヤツキング動作完了と同時に、管材４の両端
近くの所定位置に配設された管材端面矯正ヘツド
装置２，２の端面矯正用ヘツド１３，１３を夫々
の油圧ピストン機構１６，１６を駆動して同時に
作動させ、該ヘツド１３，１３の前面に固設され
た角錐体１４を管材４の端面より楔状に押込むこ
とによつて、管材４のプレスカツトによる其の両
端面に於ける変形を同時に完全に変形前の原形に
迄矯正復帰させる。端面の変形を矯正処理した後
端面矯正用ヘツド１３，１３を夫々原位置に復帰
させ、同時に回転駆動装置７′を作動して半割り
チヤツク片５′を第４図に示す矢印方向に、矯正
作業処理済みの管材４を保持した状態を保ちなが
ら回動させて、該管材４を移送台装置３上に載せ
換える。移送台に載せられた管材４は自重によつ
て移送台装置３上を滑下して排出されて行く。管
材４の排出が終ると同時に半割りチヤツク片５′
を原位置に復帰させて本考案の管材端面矯正装置
による管材の端面矯正作業の１サイクルを完了す
る。以上に説明したとおり、本考案装置は角形管
材のプレスカツトによる端面の変形部を完全に元
通り矯正するから、従来のように変形部を再切断
する必要がなく、歩留りを高めることができる。
また、角形管の冷間成形機ラインに容易に組入れ
ることができ、生産性を高めることができる。 Pipe material 4 made of the above half chuck pieces 5, 5'
Simultaneously with the completion of the chucking operation, the end face straightening heads 13, 13 of the pipe material end face straightening head devices 2, 2 disposed at predetermined positions near both ends of the pipe material 4 are simultaneously driven by respective hydraulic piston mechanisms 16, 16. By activating it and pushing the pyramid 14 fixed on the front surface of the heads 13, 13 in a wedge shape from the end face of the tube 4, the deformation of the both end faces of the tube 4 due to press cutting is simultaneously completely removed. Correct and return to the original shape before deformation. The rear end face straightening heads 13, 13, which have been corrected for deformation of the end face, are returned to their original positions, and at the same time, the rotary drive device 7' is activated to straighten the half chuck piece 5' in the direction of the arrow shown in FIG. The processed tube material 4 is rotated while being held, and the tube material 4 is transferred onto the transfer table device 3. The tube material 4 placed on the transfer table slides down on the transfer table device 3 due to its own weight and is discharged. At the same time as the discharge of the pipe material 4 is completed, the half chuck piece 5'
is returned to its original position to complete one cycle of the pipe end face straightening work by the pipe end face straightening device of the present invention. As explained above, since the device of the present invention completely restores the deformed portion of the end face due to press cutting of the rectangular tube material, there is no need to re-cut the deformed portion as in the conventional method, and the yield can be increased.
In addition, it can be easily incorporated into a cold forming machine line for rectangular tubes, increasing productivity.
【図面の簡単な説明】[Brief explanation of the drawing] 第１図は本考案の角形管材プレスカツト端面矯
正装置の一実施例を示す平面図、第２図は第１図
のＡ−Ａ線矢視正面図、第３図は角形管材の端面
矯正用ヘツド１３を示す部分図で、イは一部断面
正面図、ロはイ図のＢ−Ｂ線矢視側面図である。
第４図は自動管材チヤツク装置１の構造並びに作
用を示すための説明用略図である。 以下図面中の符号の説明、１：自動管材チヤツ
ク装置、２：管材端面矯正ヘツド装置、３：管材
平行移送台装置、４：角形管材、５，５′：廻動
式開閉型半割りチヤツク片、６，６′：半割りチ
ヤツク片５，５′の夫々を廻動させるための軸、
７，７′：軸６，６′を夫々廻動させるための廻転
駆動装置（油圧式ロータリーアクチユエーター）、
８：レバー、９：レバー８の揺動軸、１０：レバ
ー８先端に設けた管材押出し用突起、１１：連結
桿、１２：ストツパー、１３：端面矯正用ヘツ
ド、１４：端面矯正用ヘツド１３の前方に固設さ
れた角錐体、１５：端面矯正用ヘツド１３の前方
に固設された保持環、１６：端面矯正用ヘツド１
３駆動用の油圧ピストン機構。 Fig. 1 is a plan view showing an embodiment of the rectangular tube press-cut end face correction device of the present invention, Fig. 2 is a front view taken along the line A-A in Fig. 1, and Fig. 3 is a head for end face correction of a rectangular pipe material. 13, in which A is a partially sectional front view and B is a side view taken along the line B-B in FIG.
FIG. 4 is a schematic diagram for explaining the structure and operation of the automatic tube chuck device 1. As shown in FIG. The following is an explanation of the symbols in the drawings: 1: Automatic pipe chuck device, 2: Pipe end face straightening head device, 3: Pipe parallel transfer table device, 4: Square pipe, 5, 5': Rotating open/close type half chuck piece. , 6, 6': shafts for rotating the half-chuck pieces 5, 5', respectively;
7, 7': rotation drive device (hydraulic rotary actuator) for rotating the shafts 6, 6', respectively;
8: Lever, 9: Swing shaft of lever 8, 10: Tube material extrusion projection provided at the tip of lever 8, 11: Connecting rod, 12: Stopper, 13: End face correction head, 14: End face correction head 13 Pyramid fixed in front, 15: Holding ring fixed in front of end face correction head 13, 16: End face correction head 1
Hydraulic piston mechanism for 3 drives.