JP2020075293A5

JP2020075293A5 -

Info

Publication number: JP2020075293A5
Application number: JP2020010603A
Authority: JP
Filing date: 2020-01-27
Publication date: 2020-09-03
Anticipated expiration: 2038-08-31

Description

上記課題を解決するためになされた請求項１の発明は、線材送給装置から送給されてくる線材を成形工具にて第１中心軸を中心とするリング状の線材成形品に成形し、切断装置にて前記線材成形品を後続の線材から切り離すサイクル動作を繰り返す線材成形機において、前記切断装置に設けられ、前記第１中心軸の軸方向と直交する回転軸を中心に回転駆動される砥石と、前記切断装置を搭載しかつ前記第１中心軸回りに回転駆動され、前記砥石を前記線材成形品の切断対象部分に前記第１中心軸の軸方向で対向させて、前記切断対象部分と同じ向きかつ同じ速さの角速度で第１回動位置から第２回動位置まで回動する追従動作と、前記第１回動位置に戻る復帰動作とを含む回動サイクル動作を繰り返す回動ベースと、前記回動ベースを搭載し、前記第１中心軸と平行にスライド駆動され、前記追従動作中に前記砥石が前記切断対象部分に押し付けられるように前進し、前記復帰動作の前に前記砥石が前記切断対象部分から離間するように後退するスライドサイクル動作を繰り返すスライドベースと、を備える線材成形機である。 The invention of claim 1 made to solve the above problem is to mold a wire rod fed from a wire rod feeding device into a ring-shaped wire rod molded product centered on a first central axis with a molding tool. In a wire rod molding machine that repeats a cycle operation of separating the wire rod molded product from a subsequent wire rod by a cutting device, it is provided in the cutting device and is rotationally driven around a rotation axis orthogonal to the axial direction of the first central axis. The grindstone and the cutting device are mounted and rotationally driven around the first central axis, and the grindstone is made to face the cutting target portion of the wire rod molded product in the axial direction of the first central axis, and the cutting target portion. Rotation that repeats a rotation cycle operation including a follow-up operation that rotates from the first rotation position to the second rotation position and a return operation that returns to the first rotation position in the same direction and at the same angular velocity as The base and the rotating base are mounted and slid-driven in parallel with the first central axis, and the grindstone advances so as to be pressed against the cutting target portion during the following operation, and the whetstone advances before the returning operation. A wire rod forming machine including a slide base that repeats a slide cycle operation in which the grindstone retracts so as to be separated from the cutting target portion .

請求項２の発明は、前記線材が前記線材成形品に成形される成形領域を、前記第１中心軸の軸方向で間に挟んで前記回動ベースに対して対向配置され、前記回動ベースと一緒に前記第１中心軸回りに回転駆動されて前記回動サイクル動作を繰り返すクランプベースと、前記クランプベースに搭載されて、前記切断対象部分の切断時に前記線材成形品のうち前記切断対象部分の近傍をクランプするクランパーと、を備える請求項１に記載の線材成形機である。 According to the second aspect of the present invention, a molding region in which the wire rod is molded into the wire rod molded product is sandwiched between them in the axial direction of the first central axis and is arranged to face the rotation base. A clamp base that is rotationally driven around the first central axis and repeats the rotation cycle operation, and a portion of the wire rod molded product that is mounted on the clamp base and is to be cut when the portion to be cut is cut. The wire rod forming machine according to claim 1 , further comprising a clamper for clamping the vicinity of the wire rod.

請求項３の発明は、前記回動サイクル動作には、前記追従動作の後に、前記線材の切断面の角速度と同じ向きかつそれより速い角速度で回動ベースが回動して前記切断面から前記砥石が離れる退避動作が含まれている請求項１又は２に記載の線材成形機である。 According to the third aspect of the present invention, in the rotation cycle operation, after the follow-up operation, the rotation base rotates in the same direction as the angular velocity of the cut surface of the wire rod and at an angular velocity faster than that, and the rotation base rotates from the cut surface. The wire rod forming machine according to claim 1 or 2, which includes a retracting operation in which the grindstone is separated .

請求項４の発明は、前記砥石の回転軸は、前記第１中心軸の軸方向から見てリング状の前記線材成形品の外側に位置する請求項１から３の何れか１の請求項に記載の線材成形機である。 The invention of claim 4 is the invention of any one of claims 1 to 3, wherein the rotating shaft of the grindstone is located outside the ring-shaped wire rod molded product when viewed from the axial direction of the first central shaft. The wire rod forming machine described.

請求項５の発明は、請求項１から４の何れか１の請求項に記載の線材成形機を使用して複数の線材成形品を製造する線材成形品の製造方法である。 The invention of claim 5 is a method for manufacturing a wire rod molded product, which manufactures a plurality of wire rod molded products by using the wire rod molding machine according to any one of claims 1 to 4 .

請求項１の線材成形機は、線材送給装置から送給されてくる線材をリング状の線材成形品に成形してから切断装置にて後続の線材から切り離すサイクル動作を繰り返す。ここで、線材の成形中に送給を停止すると、再送給する際に線材に痕（以下、「成形開始痕」という）が残ることがあり、その成形開始痕の除去加工のために生産効率が低下し得る。これに対し、請求項１の線材成形機は、線材成形品の後端部と共に円弧軌跡を描いて移動可能な回動ベースを有し、そこに切断装置が搭載されて線材成形品の後端部と共に移動しながら砥石により線材を切断する。つまり、本発明の線材成形機によれば、線材の送給を停止しないで複数の線材成形品を、順次、製造することができる。これにより、成形開始痕の発生が抑えられ生産効率の向上が図られる。 The wire rod forming machine according to claim 1 repeats a cycle operation in which the wire rod fed from the wire rod feeding device is formed into a ring-shaped wire rod molded product and then separated from the subsequent wire rod by the cutting device. Here, if the feeding is stopped during the molding of the wire rod, a mark (hereinafter referred to as “molding start mark”) may remain on the wire rod when the wire rod is retransmitted, and the production efficiency is due to the removal processing of the molding start mark. Can decrease. On the other hand, the wire rod molding machine according to claim 1 has a rotating base that can move in an arc locus together with the rear end portion of the wire rod molded product, on which a cutting device is mounted and the rear end of the wire rod molded product. The wire is cut with a grindstone while moving with the part. That is, according to the wire rod molding machine of the present invention, a plurality of wire rod molded products can be sequentially manufactured without stopping the feeding of the wire rod. As a result, the generation of molding start marks is suppressed and the production efficiency is improved.

Claims

A cycle operation in which the wire rod fed from the wire rod feeder is molded into a ring-shaped wire rod molded product centered on the first central axis with a molding tool, and the wire rod molded product is separated from the subsequent wire rod by the cutting device. In a wire forming machine that repeats
A grindstone provided in the cutting device and driven to rotate around a rotation axis orthogonal to the axial direction of the first central axis.
The cutting device is mounted and rotationally driven around the first central axis so that the grindstone faces the cutting target portion of the wire rod molded product in the axial direction of the first central axis, and has the same orientation as the cutting target portion. A rotation base that repeats a rotation cycle operation including a follow-up operation that rotates from the first rotation position to the second rotation position at an angular velocity of the same speed and a return operation that returns to the first rotation position.
The rotating base is mounted and slid driven in parallel with the first central axis, and the grindstone advances so as to be pressed against the cutting target portion during the following operation, and the grindstone moves forward before the return operation. A wire rod forming machine including a slide base that repeats a slide cycle operation of retreating so as to be separated from a portion to be cut .

A molding region in which the wire rod is molded into the wire rod molded product is sandwiched between them in the axial direction of the first central axis and is arranged to face the rotation base, and the first center together with the rotation base. A clamp base that is rotationally driven around an axis and repeats the rotational cycle operation,
The wire rod molding machine according to claim 1, further comprising a clamper mounted on the clamp base and clamping the vicinity of the wire rod molded product in the vicinity of the cut target portion when the cut target portion is cut.

In the rotation cycle operation, after the follow-up operation, the rotation base rotates in the same direction as the angular velocity of the cut surface of the wire rod and at an angular velocity faster than that, and the grindstone moves away from the cut surface. The wire rod forming machine according to claim 1 or 2, which is included.

The wire rod forming machine according to any one of claims 1 to 3, wherein the rotating shaft of the grindstone is located outside the wire rod molded product having a ring shape when viewed from the axial direction of the first central axis.

A method for manufacturing a wire rod molded product, which manufactures a plurality of wire rod molded products using the wire rod molding machine according to any one of claims 1 to 4.