JP4625041B2 - Circular saw cutting machine - Google Patents
Circular saw cutting machine Download PDFInfo
- Publication number
- JP4625041B2 JP4625041B2 JP2007071275A JP2007071275A JP4625041B2 JP 4625041 B2 JP4625041 B2 JP 4625041B2 JP 2007071275 A JP2007071275 A JP 2007071275A JP 2007071275 A JP2007071275 A JP 2007071275A JP 4625041 B2 JP4625041 B2 JP 4625041B2
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- cutting
- cutting line
- circular saw
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005520 cutting process Methods 0.000 title claims description 148
- 238000003825 pressing Methods 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Sawing (AREA)
Description
本発明は、中空体を切断するための丸鋸切断機に係り、特に、両端が屈曲した異形中空体の切断や、パイプの斜め切断を実施する際にびびり振動を防止する技術に関する。 The present invention relates to a circular saw cutting machine for cutting a hollow body, and more particularly to a technique for preventing chatter vibration when performing cutting of a deformed hollow body bent at both ends or oblique cutting of a pipe.
従来、丸鋸を用いてパイプを切断する装置として、図５（Ａ）に示す様に、パイプを受ける受け台に複数個の受けローラを回転自在に装着すると共に、パイプを上から押さえて受け台との間に保持する押さえチェーンを受け台の上方に配設し、この押さえチェーンに複数個の押さえローラを回転自在に装着し、押さえチェーンの一端を受け台の一端に固定すると共に押さえチェーンの他端を受け台の他端にファスナーにて緊締・弛緩自在にし、受け台と押さえチェーンとの間にパイプを挿通して保持する様にしたものが提案されている（特許文献１）。 Conventionally, as shown in FIG. 5 (A), as a device for cutting a pipe using a circular saw, a plurality of receiving rollers are rotatably mounted on a receiving base for receiving the pipe, and the pipe is received from above. A presser chain that is held between the base and the base is arranged above the base, and a plurality of presser rollers are rotatably mounted on the base chain, and one end of the base chain is fixed to one end of the base and the presser chain. The other end of the cradle has been proposed to be fastened and loosened with a fastener to the other end of the cradle, and a pipe is inserted and held between the cradle and the holding chain (Patent Document 1).
また、角形鋼管の切断加工時の振動、騒音を低減する制振機能を有するクランプ装置として、図５（Ｂ）に示す様に、板ばねと重量材からなる制振装置をクランプに取り付けた加工用クランプ装置が提案されている（特許文献２）。 In addition, as shown in FIG. 5 (B), as a clamp device having a vibration control function for reducing vibration and noise during cutting of a square steel pipe, a process in which a vibration control device made of a leaf spring and a heavy material is attached to the clamp. A clamping device for a vehicle has been proposed (Patent Document 2).
さらに、図５（Ｃ）に示す様に、断面異形の中空体であるコンプレッサーシェルを周方向に切断するために、同一平面で回転するカッターを二つずつ備えた二つのヘッドを有し、全部で四つのカッターを用いてコンプレッサーシェルを回転させつつ、ヘッドを接近・離間させる機構を備えた切断装置の提案もある（特許文献３）。 Furthermore, as shown in FIG. 5 (C), in order to cut the compressor shell, which is a hollow body having a deformed cross section, in the circumferential direction, it has two heads each having two cutters rotating on the same plane, There is also a proposal of a cutting device provided with a mechanism for moving a compressor shell using four cutters while moving a head closer and away (Patent Document 3).
また、図５（Ｄ）に示す様に、丸鋸を有するフレームを揺動可能に支持するベッド上に取付けられた固定バイス部と、この固定バイス部に対向して上記ベッドに進退動可能に設けられた可動バイス部とにより被切断材を挟持する切断機のバイス装置において、ベッドには、ダウンカット位置に配設した直角切断時の固定バイス部の挟持面と丸鋸通過ラインとの交点を中心とする円弧状被係合部を形成し、この交点を中心として回動可能な固定バイス部を、ベッドの円弧状被係合部の任意位置に締結する締結部材を設けることで、直角切断及び角度切断のいずれの場合も安定した切断が可能となり作業の安全性も高くなる切断機のバイス装置の提案もある（特許文献４）。
特許文献１〜３の切断装置は、いずれも、被切断物の軸線に対して直交する方向に切断するには適しているものの、軸線に対して斜めに切断することはできない。 Although all of the cutting devices of Patent Documents 1 to 3 are suitable for cutting in a direction orthogonal to the axis of the workpiece, they cannot be cut obliquely with respect to the axis.
特許文献４の切断装置は、被切断物の軸線に対して斜めに切断することもできるものの、真っ直ぐなパイプにしか対応できない。 Although the cutting device of patent document 4 can also cut | disconnect diagonally with respect to the axis line of a to-be-cut object, it can respond only to a straight pipe.
そこで、本発明は、溶接構造によって形成された異形断面の中空体であっても、これを精度良く切断することができ、しかも、その切断の際にビビリ振動等の発生による切断面の乱れ等の不具合が生じない様にすることを目的とする。 Therefore, the present invention can cut a hollow body having a deformed cross section formed by a welded structure with high accuracy, and the cutting surface may be disturbed due to chatter vibration during the cutting. The purpose is to prevent the occurrence of problems.
上記目的を達するためになされた第１の発明としての丸鋸切断機は、筒体状又は中空体状のワークを丸鋸を用いて切断するための切断機であって、以下の構成を備えていることを特徴とする。
（１−１）前記丸鋸は、所定の切断線に沿って直線移動可能に取り付けられていること。
（１−２）前記ワークの長さ中央部をクランプするクランパーを備えていること。
（１−３）前記クランパーは、前記ワークを把持・開放する脱着位置と、当該クランパーでクランプしたワークの端部の所定位置を前記丸鋸による切断線上に位置させる切断位置との間で回動する回動アームに取り付けられていること。
（１−４）前記切断位置に回動されたワークの端部を、前記切断線近傍のワーク中央側の位置で下方から支持する下方支持部材を備えていること。
（１−５）前記下方支持部材によって支持された状態のワークの上面を、前記切断線近傍のワーク中央側の位置で押さえる上面押さえ部材を備えていること。
（１−６）前記下方支持部材は、フローティング支持構造を有し、前記切断位置に回動されたワークの端部の切り落とす部分におけるワーク中心線を跨いで前記切断線に沿うほぼ対称な位置で前記ワークの下面を支持する様に前記切断線に沿って離間した複数個の支持用突起を備えていること。
（１−７）前記上面押さえ部材は、前記ワークの端部の前記ワーク中心線を跨いで前記切断線に沿うほぼ対称な位置に振り分けられる様に、前記切断線に沿って離間した複数個の押さえ用突起を備えていること。
A circular saw cutting machine as a first invention made to achieve the above object is a cutting machine for cutting a cylindrical or hollow workpiece using a circular saw, and has the following configuration. It is characterized by.
(1-1) The circular saw is attached so as to be linearly movable along a predetermined cutting line.
(1-2) A clamper that clamps the center of the length of the workpiece is provided.
(1-3) The clamper rotates between a detaching position for gripping and releasing the workpiece and a cutting position for positioning a predetermined position of the end of the workpiece clamped by the clamper on a cutting line by the circular saw. It must be attached to the rotating arm.
(1-4) Provided with a lower support member that supports the end of the work rotated to the cutting position from below at a position on the work center side in the vicinity of the cutting line.
(1-5) An upper surface pressing member that presses the upper surface of the workpiece supported by the lower support member at a position on the workpiece center side in the vicinity of the cutting line is provided.
(1-6) The lower support member has a floating support structure, and is at a substantially symmetrical position along the cutting line across the workpiece center line in the part to be cut off at the end of the workpiece rotated to the cutting position. A plurality of supporting protrusions spaced along the cutting line so as to support the lower surface of the workpiece;
(1-7) The upper surface pressing member includes a plurality of pieces spaced along the cutting line so as to be distributed to substantially symmetrical positions along the cutting line across the work center line of the end portion of the work . It has a pressing protrusion.
第１の発明によれば、回動アームを脱着位置に回動させ、クランパーでワークの長さ中央部をクランプする。そして、回動アームを切断位置へと回動させる。すると、ワークの端部は、切断線近傍を下方支持部材によってフローティング支持された状態となる。続いて、上面押さえ部材によって同じく切断線近傍を上面から押さえ付けられる。このとき、下方支持部材の支持用突起及び上面押さえ部材の押さえ用突起は、それぞれ切断線に沿って離間しているから、ワークは切り落とす部分におけるワーク中心線を跨ぐ対称位置で上下から支持された状態となる。この結果、丸鋸でワークを切断する際に、ワークが切断線近傍でしっかりと支持された状態となり、しかも、その支持状態は、切り落とす部分におけるワーク中心線を跨いでほぼ対称な位置を上下から支持された状態となるので、薄肉中空体を切断する際の振動を抑制することができる。よって、精度良く切断面を形成することができる。 According to the first aspect of the present invention, the rotating arm is rotated to the attachment / detachment position, and the work length central portion is clamped by the clamper. Then, the turning arm is turned to the cutting position. Then, the end portion of the workpiece is in a state where the vicinity of the cutting line is floatingly supported by the lower support member. Subsequently, the vicinity of the cutting line is similarly pressed from the upper surface by the upper surface pressing member. At this time, since the supporting protrusions of the lower supporting member and the pressing protrusions of the upper surface pressing member are separated from each other along the cutting line, the work is supported from above and below at a symmetrical position across the work center line in the part to be cut off . It becomes a state. As a result, when the workpiece is cut with a circular saw, the workpiece is firmly supported in the vicinity of the cutting line, and the supporting state is substantially symmetrical from the top to the bottom of the workpiece center line at the part to be cut off. Since it will be in the state supported, the vibration at the time of cut | disconnecting a thin hollow body can be suppressed. Therefore, a cut surface can be formed with high accuracy.
また、上記目的を達するためになされた第２の発明としての丸鋸切断機は、筒体状又は中空体状のワークを丸鋸を用いて切断するための切断機であって、以下の構成を備えていることを特徴とする。
（２−１）前記丸鋸は、前記ワークの端部に対して該端部の中心線に対して斜めに交差する所定の切断線に沿って直線移動可能に取り付けられていること。
（２−２）前記ワークの長さ中央部をクランプするクランパーを備えていること。
（２−３）前記クランパーは、前記ワークを把持・開放する脱着位置と、当該クランパーでクランプしたワークの端部の所定位置を前記丸鋸による切断線上に位置させる切断位置との間で回動する回動アームに取り付けられていること。
（２−４）前記切断位置に回動されたワークの端部を、前記切断線近傍のワーク中央側の位置で下方から支持する下方支持部材を備えていること。
（２−５）前記下方支持部材によって支持された状態のワークの上面を、前記切断線近傍のワーク中央側の位置で押さえる上面押さえ部材を備えていること。
（２−６）前記下方支持部材は、フローティング支持構造を有し、前記切断位置に回動されたワークの端部の切り落とす部分におけるワーク中心線を跨ぎ前記切断線に沿ってほぼ対称な位置で前記ワークの下面を支持する様に前記切断線に沿って離間した複数個の支持用突起を備えていること。
（２−７）前記上面押さえ部材は、前記ワークの端部の前記ワーク中心線を跨ぎ前記切断線に沿ってほぼ対称に振り分けられる様に、前記切断線に沿って離間した複数個の押さえ用突起を備えていること。
Further, a circular saw cutting machine as a second invention made to achieve the above object is a cutting machine for cutting a cylindrical or hollow workpiece using a circular saw, and has the following configuration It is characterized by having.
(2-1) The circular saw is attached so as to be linearly movable along a predetermined cutting line that obliquely intersects the center line of the end portion with respect to the end portion of the workpiece.
(2-2) A clamper that clamps the center of the length of the workpiece is provided.
(2-3) The clamper rotates between a detaching position for gripping and releasing the workpiece and a cutting position for positioning a predetermined position of the end of the workpiece clamped by the clamper on a cutting line by the circular saw. It must be attached to the rotating arm.
(2-4) A lower support member for supporting the end portion of the work rotated to the cutting position from below at a position on the work center side in the vicinity of the cutting line is provided.
(2-5) An upper surface pressing member that presses the upper surface of the work supported by the lower support member at a position on the work center side in the vicinity of the cutting line is provided.
(2-6) The lower support member has a floating support structure , straddles the workpiece center line at the portion to be cut off at the end of the workpiece rotated to the cutting position, and at a substantially symmetric position along the cutting line. A plurality of supporting protrusions spaced along the cutting line so as to support the lower surface of the workpiece;
(2-7) The upper surface pressing member is a plurality of pressing members spaced along the cutting line so as to be distributed almost symmetrically along the cutting line across the workpiece center line at the end of the workpiece . Providing protrusions.
第２の発明によれば、例えば円形パイプを斜めに切断する様なことが可能である。この際に、切断線の近傍を上下からワークの中心を跨いでほぼ対称な位置を支持された状態となるので、薄肉中空体を斜めに切断してもビビリ振動を十分に抑制することができる。よって、中空体に度良く斜めの切断面を形成することができる。 According to the second invention, for example, a circular pipe can be cut obliquely. At this time, since the position near the cutting line is supported at a substantially symmetrical position across the center of the workpiece from above and below, chatter vibration can be sufficiently suppressed even when the thin hollow body is cut obliquely. . Therefore, an oblique cut surface can be formed on the hollow body.
また、上記目的を達するためになされた第３の発明としての丸鋸切断機は、筒体状又は中空体状のワークを丸鋸を用いて切断するための切断機であって、以下の構成を備えていることを特徴とする。
（３−１）前記ワークは、本体部分の両端に同一角度で斜めにハの字状に拡がる様に伸びる端部を備えた両端屈曲形状の筒体であること。
（３−２）前記丸鋸は、所定の切断線に沿って直線移動可能に取り付けられていること。
（３−３）前記ワークの本体部分の長さ方向中央部をクランプするクランパーを備えていること。
（３−４）前記クランパーは、前記ワークを把持・開放する脱着位置と、当該クランパーでクランプしたワークの端部の所定位置を前記丸鋸による切断線上に位置させる切断位置との間で回動する回動アームに取り付けられていること。
（３−５）前記切断位置に回動されたワークの端部を、前記切断線近傍のワーク中央側の位置で下方から支持する下方支持部材を備えていること。
（３−６）前記下方支持部材によって支持された状態のワークの上面を、前記切断線近傍のワーク中央側の位置で押さえる上面押さえ部材を備えていること。
（３−７）前記下方支持部材は、フローティング支持構造を有し、前記切断位置に回動されたワークの端部の切り落とす部分におけるワーク中心線を跨ぎ前記切断線に沿ってほぼ対称な位置で前記ワークの下面を支持する様に前記切断線に沿って離間した複数個の支持用突起を備えていること。
（３−８）前記上面押さえ部材は、前記ワークの端部の前記ワーク中心線を跨ぎ前記切断線に沿ってほぼ対称に振り分けられる様に、前記切断線に沿って離間した複数個の押さえ用突起を備えていること。
（３−９）前記切断線は、前記回動アームの回動方向と平行に設定されていること。
（３−１０）前記丸鋸、前記下方支持部材及び前記上面押さえ部材を、左右対称に対となる様に備えていること。
Further, a circular saw cutting machine as a third invention made to achieve the above object is a cutting machine for cutting a cylindrical or hollow workpiece using a circular saw, and has the following configuration It is characterized by having.
(3-1) The workpiece is a cylindrical body having a bent shape at both ends, with ends extending so as to be obliquely expanded in a square shape at the same angle at both ends of the main body portion.
(3-2) The circular saw is attached so as to be linearly movable along a predetermined cutting line.
(3-3) A clamper that clamps the central portion in the length direction of the main body portion of the workpiece is provided.
(3-4) The clamper rotates between a detaching position for gripping and releasing the workpiece and a cutting position for positioning a predetermined position of the end of the workpiece clamped by the clamper on the cutting line by the circular saw. It must be attached to the rotating arm.
(3-5) Provided with a lower support member that supports the end portion of the work rotated to the cutting position from below at the position of the work center near the cutting line.
(3-6) An upper surface pressing member that presses the upper surface of the workpiece supported by the lower support member at a position on the workpiece center side in the vicinity of the cutting line is provided.
(3-7) The lower support member has a floating support structure , straddles the workpiece center line at the portion to be cut off at the end of the workpiece rotated to the cutting position, and at a substantially symmetric position along the cutting line. A plurality of supporting protrusions spaced along the cutting line so as to support the lower surface of the workpiece;
(3-8) The upper surface pressing member is for a plurality of pressing members spaced along the cutting line so as to be distributed almost symmetrically along the cutting line across the workpiece center line at the end of the workpiece . Providing protrusions.
(3-9) The cutting line is set in parallel with the rotating direction of the rotating arm.
(3-10) The circular saw, the lower support member, and the upper surface pressing member are provided so as to be paired symmetrically.
第３の発明によれば、両端が屈曲した中空体の両端間距離が目的の距離となる様に異形ワークを切断することができる。この際に、切断面は楕円状に筒を斜めに切った様になるが、上述の各発明と同様に、切断線の近傍で、上下からワークの中心を跨いでほぼ対称な位置を支持された状態となるので、切断時のビビリ振動を十分に抑制することができる。よって、両端屈曲状の筒体に対して、軸線に直交する切断面を精度良く形成することができる。 According to the third invention, the deformed workpiece can be cut so that the distance between both ends of the hollow body bent at both ends becomes a target distance. At this time, the cutting surface looks like an elliptical cut of the cylinder, but as in each of the above-described inventions, a substantially symmetrical position is supported near the cutting line across the center of the workpiece from above and below. Therefore, chatter vibration at the time of cutting can be sufficiently suppressed. Therefore, it is possible to accurately form a cut surface perpendicular to the axis with respect to the cylindrical body that is bent at both ends.
この第３の発明の丸鋸切断機は、さらに、以下の構成をも備えると、両端がハの字に拡がる様に屈曲した形状の中空体をより精度良く製造することができる。
（４−１）前記脱着位置には、前記ワークの本体部の長さ方向の中心を前記切断線間の中心と位置合わせする中心合わせ手段を備えていること。
If the circular saw cutting machine of this 3rd invention is also provided with the following composition, it can manufacture more precisely the hollow body of the shape bent so that both ends may expand in the shape of a letter C.
(4-1) The attachment / detachment position includes a centering means for aligning the longitudinal center of the main body of the workpiece with the center between the cutting lines.
本発明によれば、溶接構造によって形成された異形断面の中空体であっても、これを精度良く切断することができ、しかも、その切断の際にビビリ振動等の発生による切断面の乱れ等の不具合が生じない様にすることができる。 According to the present invention, even a hollow body having an irregular cross section formed by a welded structure can be cut with high accuracy, and the cut surface is disturbed due to the occurrence of chatter vibration or the like during the cutting. Can be prevented from occurring.
特に、第３の発明によれば、両端がハの字状に拡がる様に屈曲した中空体を正しい両端間距離となる様に容易に製造することができる。よって、直線状の筒体の両端に角度を付けて筒体を溶接固定しておき、これを切断し、この切断面に車輪取付用のプレートを溶接固定すれば、車軸長さの正確な自動車用ホイールシャフトを容易に製造することができる。 In particular, according to the third invention, it is possible to easily manufacture a hollow body that is bent so that both ends expand in a square shape so that the distance between both ends is correct. Therefore, if the cylinder is welded and fixed at an angle at both ends of the linear cylinder, then this is cut, and a wheel mounting plate is welded and fixed to this cut surface, an automobile with an accurate axle length The wheel shaft can be easily manufactured.
以下、本発明の実施の形態を、図面を参照しながら、具体的に説明する。図１〜図３に、実施形態としての丸鋸切断機の要部の構成を示す。 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. The structure of the principal part of the circular saw cutting machine as embodiment is shown in FIGS.
実施形態の丸鋸切断機１は、自動車用の後輪ホイールシャフト用として溶接によって製造された中空筒状のワークＷを切断するためのものである。ワークＷは、図４に示す様に、本体部分Ｗ１の両端に同一角度で斜めにハの字状に拡がる様に伸びる端部Ｗ２を備えた両端屈曲形状の筒体である。また、この屈曲部分には、自動車の車体に懸架して支持するためのブラケットＷ３が形成されている。 The circular saw cutting machine 1 of the embodiment is for cutting a hollow cylindrical work W manufactured by welding for a rear wheel shaft for an automobile. As shown in FIG. 4, the workpiece W is a cylindrical body having a bent shape at both ends provided with end portions W <b> 2 extending at an equal angle at both ends of the main body portion W <b> 1 obliquely in a square shape. In addition, a bracket W3 for suspending and supporting the automobile body is formed at the bent portion.
丸鋸３は、図１〜図３に示す様に、垂直な支柱部材５に沿って上下方向にストローク動作する様に取り付けられた丸鋸モータ７に装着されている。この丸鋸モータ７は、ワークＷの幅方向に対称な位置に２基設置されている。また、丸鋸切断機１には、これら２基の丸鋸モータ７，７による切断位置へとワークＷをセットするための回動アーム９が備えられている。この回動アーム９は、ワークＷの中央部を２箇所でクランプするクランパー１１，１１を備え、ワークＷを把持・開放する脱着位置と、鋸刃３，３による切断線Ｌｃｕｔ上にワークＷを位置させる切断位置との間で回動する様に構成されている。そして、切断線Ｌｃｕｔは、この回動アーム９の回動方向と平行に設定されている。 As shown in FIGS. 1 to 3, the circular saw 3 is attached to a circular saw motor 7 that is mounted so as to perform a vertical stroke operation along a vertical support member 5. Two of the circular saw motors 7 are installed at symmetrical positions in the width direction of the workpiece W. Further, the circular saw cutting machine 1 is provided with a rotating arm 9 for setting the workpiece W to a cutting position by the two circular saw motors 7 and 7. The pivoting arm 9 is provided with a clamper 11, 11 for clamping the central portion of the workpiece W at two points, and the removable position to grip and release a workpiece W, the workpiece W on the cutting line Lcut by the saw blade 3, 3 It is comprised so that it may rotate between the cutting positions to be located. The cutting line Lcut is set in parallel with the rotating direction of the rotating arm 9.
実施形態の丸鋸切断機１には、脱着位置においてワークＷの本体部Ｗ１の長さ方向の中心を切断線Ｌｃｕｔ間の中心と位置合わせする中心合わせ手段としてのピン１３，１３が設置されている。このピン１３，１３は、ブラケットＷ３のピン孔を嵌め込む様にワークＷをセットすることで中心合わせができる様に配置されている。 The circular saw cutting machine 1 of the embodiment is provided with pins 13 and 13 as centering means for aligning the longitudinal center of the main body W1 of the work W with the center between the cutting lines Lcut at the detaching position. Yes. The pins 13 and 13 are arranged so that centering can be performed by setting the work W so that the pin hole of the bracket W3 is fitted.
また、実施形態の丸鋸切断機１には、切断位置に回動されたワークＷの端部Ｗ２，Ｗ２を切断線Ｌｃｕｔ近傍のワーク中央側の位置で下方から支持する下方支持部材１５，１５が設置されている。この下方支持部材１５，１５は、フローティング支持構造を有し、切断位置に回動されたワークＷの端部Ｗ２，Ｗ２の切断範囲（切り落とす部分Ｗｃｕｔ）におけるワーク中心線ＣＬを跨ぎ切断線Ｌｃｕｔに沿ってほぼ対称な位置で下面を支持する様に切断線Ｌｃｕｔに沿って離間した２個の支持用突起１６を備えている（図４（Ａ）参照）。 Further, in the circular saw cutting machine 1 of the embodiment, the lower support members 15 and 15 for supporting the end portions W2 and W2 of the workpiece W rotated to the cutting position from below at the position on the workpiece center side in the vicinity of the cutting line Lcut. Is installed. The lower support members 15 and 15 have a floating support structure, and straddle the workpiece center line CL in the cutting range (the portion Wcut to be cut off) of the end portions W2 and W2 of the workpiece W rotated to the cutting position to the cutting line Lcut. and a two supporting projections 16 spaced along the cutting line Lcut so as to support the lower surface at substantially symmetrical positions along (see FIG. 4 (a)).
さらに、実施形態の丸鋸切断機１には、下方支持部材１５，１５によって支持された状態のワークＷの上面を、切断線Ｌｃｕｔ近傍のワーク中央側の位置で押さえる上面押さえ部材２０，２０が設置されている。各上面押さえ部材２０は、回動レバー２１と、この回動レバー２１の先端に取り付けられた２個の押さえ用突起２３，２３を備えている。この押さえ用突起２３，２３は、ワークＷの端部Ｗ２の切り落とし部分Ｗｃｕｔにおけるワーク中心線ＣＬを跨ぎ切断線Ｌｃｕｔに沿ってほぼ対象に振り分けられる様に切断線Ｌｃｕｔに沿って離間した配置となっている。回動レバー２１は、切断線Ｌｃｕｔに直交する方向に回動する様に構成されている。なお、実施例としては、図４（Ｂ）に示す様に、ワークＷの端部Ｗ２の曲率の大きな箇所間の距離Ａに対して、上面及び下面の支点間距離をＡ／２として実験したところ、びびり振動なしに良好な切断ができた。 Furthermore, the circular saw cutting machine 1 according to the embodiment includes upper surface pressing members 20 and 20 that press the upper surface of the workpiece W supported by the lower support members 15 and 15 at a position on the workpiece center side in the vicinity of the cutting line Lcut. is set up. Each upper surface pressing member 20 includes a rotating lever 21 and two pressing protrusions 23 and 23 attached to the tip of the rotating lever 21. The pressing protrusions 23 and 23 are arranged so as to be separated from each other along the cutting line Lcut so as to straddle the workpiece center line CL at the cut-off portion Wcut of the end W2 of the workpiece W and to be distributed to the target along the cutting line Lcut. ing. The rotation lever 21 is configured to rotate in a direction orthogonal to the cutting line Lcut . As an example, as shown in FIG. 4 (B), the distance between the fulcrums on the upper surface and the lower surface was set to A / 2 with respect to the distance A between the portions with a large curvature of the end W2 of the workpiece W. However, good cutting was possible without chatter vibration.
以上の様に構成された本実施形態の丸鋸切断機１によれば、回動アーム９を脱着位置に回動させ、クランパー１１，１１でワークＷの長さ中央部をクランプする。そして、回動アーム９を切断位置へと回動させる。すると、ワークＷの端部Ｗ２，Ｗ２は、切断線Ｌｃｕｔ近傍を下方支持部材１５，１５によってフローティング支持された状態となる。続いて、各上面押さえ部材２０の回動レバー２１を倒れる方向に回動する。この結果、ワークＷの端部Ｗ２，Ｗ２は、上面押さえ部材２０，２０によって切断線Ｌｃｕｔ近傍を上面から押さえ付けられる。このとき、下方支持部材１５，１５の支持用突起１６及び上面押さえ部材２０，２０の押さえ用突起２３は、それぞれ切断線Ｌｃｕｔに沿って離間しているから、ワークＷは切り落とし部分Ｗｃｕｔにおけるワーク中心線ＣＬを跨ぐ対称位置で上下から支持された状態となる。この結果、丸鋸３でワークＷを切断する際に、ワークＷが切断線Ｌｃｕｔ近傍でしっかりと支持された状態となり、しかも、その支持状態は、切り落とし部分Ｗｃｕｔにおけるワーク中心線ＣＬを跨いでほぼ対称な位置を上下から支持された状態となるので、薄肉中空体として構成されているワークＷを切断する際の振動を抑制することができる。よって、精度良く切断面を形成することができる。この切断面は、ワークＷの端部Ｗ１，Ｗ１の軸線に対して斜めになる。 According to the circular saw cutting machine 1 of the present embodiment configured as described above, the rotary arm 9 is rotated to the detaching position, and the length central portion of the workpiece W is clamped by the clampers 11 and 11. Then, the turning arm 9 is turned to the cutting position. Then, the end portions W2 and W2 of the workpiece W are in a state in which the vicinity of the cutting line Lcut is floatingly supported by the lower support members 15 and 15. Subsequently, the rotation lever 21 of each upper surface pressing member 20 is rotated in the direction in which it is tilted. As a result, the end portions W2, W2 of the workpiece W are pressed from the upper surface by the upper surface pressing members 20, 20 in the vicinity of the cutting line Lcut . At this time, since the supporting protrusion 16 of the lower support members 15 and 15 and the pressing protrusion 23 of the upper surface pressing members 20 and 20 are separated from each other along the cutting line Lcut , the workpiece W is the workpiece center at the cut-off portion Wcut. It is in a state of being supported from above and below at a symmetrical position across the line CL . As a result, when the workpiece W is cut by the circular saw 3, the workpiece W is firmly supported in the vicinity of the cutting line Lcut , and the supporting state is almost across the workpiece center line CL in the cut-off portion Wcut. Since the symmetrical position is supported from above and below, vibrations when cutting the workpiece W configured as a thin hollow body can be suppressed. Therefore, a cut surface can be formed with high accuracy. This cut surface is inclined with respect to the axes of the end portions W1, W1 of the workpiece W.
以上、本発明の実施形態を説明したが、本発明はこの実施形態に限らず、その要旨を逸脱しない範囲内での種々なる変形実施が可能であることはいうまでもない。 As mentioned above, although embodiment of this invention was described, it cannot be overemphasized that various deformation | transformation implementation is possible for this invention in the range which is not restricted to this embodiment and does not deviate from the summary.
１・・・丸鋸切断機
３・・・丸鋸
５・・・支柱部材
７・・・丸鋸モータ
９・・・回動アーム
１１・・・クランパー
１３・・・ピン
１５・・・下方支持部材
１６・・・支持用突起
２０・・・上面押さえ部材
２１・・・回動レバー
２３・・・押さえ用突起
ＣＬ・・・切り落とし部分におけるワーク中心線
Ｌｃｕｔ・・・切断線
Ｗ・・・ワーク
Ｗ１・・・本体部分
Ｗ２・・・端部
Ｗ３・・・ブラケット
Ｗｃｕｔ・・・切り落とし部分
DESCRIPTION OF SYMBOLS 1 ... Circular saw cutting machine 3 ... Circular saw 5 ... Strut member 7 ... Circular saw motor 9 ... Turning arm 11 ... Clamper 13 ... Pin 15 ... Downward support Member 16 ... Supporting projection 20 ... Upper surface pressing member 21 ... Turning lever 23 ... Holding projection
CL: Work center line at the cut-off part
Lcut ... cutting line W ... work W1 ... body part W2 ... end W3 ... bracket
Wcut ・ ・ ・ Cut off part
Claims (4)
（１−１）前記丸鋸は、所定の切断線に沿って直線移動可能に取り付けられていること。
（１−２）前記ワークの長さ中央部をクランプするクランパーを備えていること。
（１−３）前記クランパーは、前記ワークを把持・開放する脱着位置と、当該クランパーでクランプしたワークの端部の所定位置を前記丸鋸による切断線上に位置させる切断位置との間で回動する回動アームに取り付けられていること。
（１−４）前記切断位置に回動されたワークの端部を、前記切断線近傍のワーク中央側の位置で下方から支持する下方支持部材を備えていること。
（１−５）前記下方支持部材によって支持された状態のワークの上面を、前記切断線近傍のワーク中央側の位置で押さえる上面押さえ部材を備えていること。
（１−６）前記下方支持部材は、フローティング支持構造を有し、前記切断位置に回動されたワークの端部の切り落とす部分におけるワーク中心線を跨いで前記切断線に沿うほぼ対称な位置で前記ワークの下面を支持する様に前記切断線に沿って離間した複数個の支持用突起を備えていること。
（１−７）前記上面押さえ部材は、前記ワークの端部の前記ワーク中心線を跨いで前記切断線に沿うほぼ対称な位置に振り分けられる様に、前記切断線に沿って離間した複数個の押さえ用突起を備えていること。 A circular saw cutter for cutting a cylindrical or hollow workpiece using a circular saw, comprising the following configuration.
(1-1) The circular saw is attached so as to be linearly movable along a predetermined cutting line.
(1-2) A clamper that clamps the center of the length of the workpiece is provided.
(1-3) The clamper rotates between a detaching position for gripping and releasing the workpiece and a cutting position for positioning a predetermined position of the end of the workpiece clamped by the clamper on a cutting line by the circular saw. It must be attached to the rotating arm.
(1-4) Provided with a lower support member that supports the end of the work rotated to the cutting position from below at a position on the work center side in the vicinity of the cutting line.
(1-5) An upper surface pressing member that presses the upper surface of the workpiece supported by the lower support member at a position on the workpiece center side in the vicinity of the cutting line is provided.
(1-6) The lower support member has a floating support structure, and is at a substantially symmetrical position along the cutting line across the workpiece center line in the part to be cut off at the end of the workpiece rotated to the cutting position. A plurality of supporting protrusions spaced along the cutting line so as to support the lower surface of the workpiece;
(1-7) The upper surface pressing member includes a plurality of pieces spaced along the cutting line so as to be distributed to substantially symmetrical positions along the cutting line across the work center line of the end portion of the work . It has a pressing protrusion.
（２−１）前記丸鋸は、前記ワークの端部に対して該端部の中心線に対して斜めに交差する所定の切断線に沿って直線移動可能に取り付けられていること。
（２−２）前記ワークの長さ中央部をクランプするクランパーを備えていること。
（２−３）前記クランパーは、前記ワークを把持・開放する脱着位置と、当該クランパーでクランプしたワークの端部の所定位置を前記丸鋸による切断線上に位置させる切断位置との間で回動する回動アームに取り付けられていること。
（２−４）前記切断位置に回動されたワークの端部を、前記切断線近傍のワーク中央側の位置で下方から支持する下方支持部材を備えていること。
（２−５）前記下方支持部材によって支持された状態のワークの上面を、前記切断線近傍のワーク中央側の位置で押さえる上面押さえ部材を備えていること。
（２−６）前記下方支持部材は、フローティング支持構造を有し、前記切断位置に回動されたワークの端部の切り落とす部分におけるワーク中心線を跨ぎ前記切断線に沿ってほぼ対称な位置で前記ワークの下面を支持する様に前記切断線に沿って離間した複数個の支持用突起を備えていること。
（２−７）前記上面押さえ部材は、前記ワークの端部の前記ワーク中心線を跨ぎ前記切断線に沿ってほぼ対称に振り分けられる様に、前記切断線に沿って離間した複数個の押さえ用突起を備えていること。 A circular saw cutter for cutting a cylindrical or hollow workpiece using a circular saw, comprising the following configuration.
(2-1) The circular saw is attached so as to be linearly movable along a predetermined cutting line that obliquely intersects the center line of the end portion with respect to the end portion of the workpiece.
(2-2) A clamper that clamps the center of the length of the workpiece is provided.
(2-3) The clamper rotates between a detaching position for gripping and releasing the workpiece and a cutting position for positioning a predetermined position of the end of the workpiece clamped by the clamper on a cutting line by the circular saw. It must be attached to the rotating arm.
(2-4) A lower support member for supporting the end portion of the work rotated to the cutting position from below at a position on the work center side in the vicinity of the cutting line is provided.
(2-5) An upper surface pressing member that presses the upper surface of the work supported by the lower support member at a position on the work center side in the vicinity of the cutting line is provided.
(2-6) The lower support member has a floating support structure , straddles the workpiece center line at the portion to be cut off at the end of the workpiece rotated to the cutting position, and at a substantially symmetric position along the cutting line. A plurality of supporting protrusions spaced along the cutting line so as to support the lower surface of the workpiece;
(2-7) The upper surface pressing member is a plurality of pressing members spaced along the cutting line so as to be distributed almost symmetrically along the cutting line across the workpiece center line at the end of the workpiece . Providing protrusions.
（３−１）前記ワークは、本体部分の両端に同一角度で斜めにハの字状に拡がる様に伸びる端部を備えた両端屈曲形状の筒体であること。
（３−２）前記丸鋸は、所定の切断線に沿って直線移動可能に取り付けられていること。
（３−３）前記ワークの本体部分の長さ方向中央部をクランプするクランパーを備えていること。
（３−４）前記クランパーは、前記ワークを把持・開放する脱着位置と、当該クランパーでクランプしたワークの端部の所定位置を前記丸鋸による切断線上に位置させる切断位置との間で回動する回動アームに取り付けられていること。
（３−５）前記切断位置に回動されたワークの端部を、前記切断線近傍のワーク中央側の位置で下方から支持する下方支持部材を備えていること。
（３−６）前記下方支持部材によって支持された状態のワークの上面を、前記切断線近傍のワーク中央側の位置で押さえる上面押さえ部材を備えていること。
（３−７）前記下方支持部材は、フローティング支持構造を有し、前記切断位置に回動されたワークの端部の切り落とす部分におけるワーク中心線を跨ぎ前記切断線に沿ってほぼ対称な位置で前記ワークの下面を支持する様に前記切断線に沿って離間した複数個の支持用突起を備えていること。
（３−８）前記上面押さえ部材は、前記ワークの端部の前記ワーク中心線を跨ぎ前記切断線に沿ってほぼ対称に振り分けられる様に、前記切断線に沿って離間した複数個の押さえ用突起を備えていること。
（３−９）前記切断線は、前記回動アームの回動方向と平行に設定されていること。
（３−１０）前記丸鋸、前記下方支持部材及び前記上面押さえ部材を、左右対称に対となる様に備えていること。 A circular saw cutter for cutting a cylindrical or hollow workpiece using a circular saw, comprising the following configuration.
(3-1) The workpiece is a cylindrical body having a bent shape at both ends, with ends extending so as to be obliquely expanded in a square shape at the same angle at both ends of the main body portion.
(3-2) The circular saw is attached so as to be linearly movable along a predetermined cutting line.
(3-3) A clamper that clamps the central portion in the length direction of the main body portion of the workpiece is provided.
(3-4) The clamper rotates between a detaching position for gripping and releasing the workpiece and a cutting position for positioning a predetermined position of the end of the workpiece clamped by the clamper on the cutting line by the circular saw. It must be attached to the rotating arm.
(3-5) Provided with a lower support member that supports the end portion of the work rotated to the cutting position from below at the position of the work center near the cutting line.
(3-6) An upper surface pressing member that presses the upper surface of the workpiece supported by the lower support member at a position on the workpiece center side in the vicinity of the cutting line is provided.
(3-7) The lower support member has a floating support structure , straddles the workpiece center line at the portion to be cut off at the end of the workpiece rotated to the cutting position, and at a substantially symmetric position along the cutting line. A plurality of supporting protrusions spaced along the cutting line so as to support the lower surface of the workpiece;
(3-8) The upper surface pressing member is for a plurality of pressing members spaced along the cutting line so as to be distributed almost symmetrically along the cutting line across the workpiece center line at the end of the workpiece . Providing protrusions.
(3-9) The cutting line is set in parallel with the rotating direction of the rotating arm.
(3-10) The circular saw, the lower support member, and the upper surface pressing member are provided so as to be paired symmetrically.
（４−１）前記脱着位置には、前記ワークの本体部の長さ方向の中心を前記切断線間の中心と位置合わせする中心合わせ手段を備えていること。 The circular saw cutter according to claim 3, further comprising the following configuration.
(4-1) The attachment / detachment position includes a centering means for aligning the longitudinal center of the main body of the workpiece with the center between the cutting lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007071275A JP4625041B2 (en) | 2007-03-19 | 2007-03-19 | Circular saw cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007071275A JP4625041B2 (en) | 2007-03-19 | 2007-03-19 | Circular saw cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008229760A JP2008229760A (en) | 2008-10-02 |
| JP4625041B2 true JP4625041B2 (en) | 2011-02-02 |
Family
ID=39903167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007071275A Active JP4625041B2 (en) | 2007-03-19 | 2007-03-19 | Circular saw cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4625041B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101381302B1 (en) | 2013-04-25 | 2014-04-04 | 노청균 | An automobile's door frame cutter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193720A (en) * | 1986-02-15 | 1987-08-25 | Hashimoto Tokushu Kogyo Kk | Curved clamping cutter for metallic thin different-shaped material |
| JPH08141833A (en) * | 1994-11-10 | 1996-06-04 | Amada Co Ltd | Raw material clamping method in cutter and device therefor |
| JPH10244416A (en) * | 1997-02-28 | 1998-09-14 | Central Glass Co Ltd | Cutter of long size member |
| JP2000052135A (en) * | 1998-08-05 | 2000-02-22 | Daihatsu Motor Co Ltd | Work inverting device |
| JP2000198020A (en) * | 1998-12-29 | 2000-07-18 | Fujita Seisakusho:Kk | Manufacture and device of plate material hard in cutting |
-
2007
- 2007-03-19 JP JP2007071275A patent/JP4625041B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62193720A (en) * | 1986-02-15 | 1987-08-25 | Hashimoto Tokushu Kogyo Kk | Curved clamping cutter for metallic thin different-shaped material |
| JPH08141833A (en) * | 1994-11-10 | 1996-06-04 | Amada Co Ltd | Raw material clamping method in cutter and device therefor |
| JPH10244416A (en) * | 1997-02-28 | 1998-09-14 | Central Glass Co Ltd | Cutter of long size member |
| JP2000052135A (en) * | 1998-08-05 | 2000-02-22 | Daihatsu Motor Co Ltd | Work inverting device |
| JP2000198020A (en) * | 1998-12-29 | 2000-07-18 | Fujita Seisakusho:Kk | Manufacture and device of plate material hard in cutting |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008229760A (en) | 2008-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101892080B1 (en) | Bending apparatus and method of tube-type long pipe for vehicle | |
| JP3714066B2 (en) | Work clamping apparatus and work clamping method | |
| JP4913676B2 (en) | Joining jig | |
| JP2013006234A (en) | Cutting device for adhesive tape roll | |
| JP4625041B2 (en) | Circular saw cutting machine | |
| CN214264769U (en) | A anchor clamps improve device for loop forming element | |
| CN110095409B (en) | Ejecting and breaking device and method for detecting particle bonding strength of bimetal band saw blade | |
| JP5562377B2 (en) | Work fixing device | |
| JPH09277078A (en) | Laser beam machine | |
| CN213163905U (en) | Welding fixture | |
| JP3086457U (en) | Clamper | |
| JP4806472B1 (en) | Chuck device | |
| CN215200856U (en) | Clamp and lathe for groove machining | |
| CN110919283A (en) | Free direction welding jig | |
| JPH11347802A (en) | Turning working device for deformed workpiece | |
| JP2020011333A (en) | Weld bead cutting device | |
| CN216066066U (en) | Rotary laser cutting clamp for side arm of chassis | |
| JP3752066B2 (en) | Grooving device for side ring of vehicle wheel rim | |
| CN216633168U (en) | Tooling equipment for welding automobile instrument panel | |
| CN209936423U (en) | Milling fixture for vertical milling machine | |
| CN211073160U (en) | Support nail seat part centre gripping fixing device | |
| CN220825853U (en) | Frock clamp with rotation function | |
| CN211102811U (en) | Clamp apparatus | |
| CN217019952U (en) | Clamp of pneumatic tool | |
| JP2008264909A (en) | Device for mounting portable cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20081031 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20100802 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20100831 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20101004 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20101102 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20101104 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 4625041 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131112 Year of fee payment: 3 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |