JP2005305520A - Bending device - Google Patents

Bending device Download PDF

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Publication number
JP2005305520A
JP2005305520A JP2004128386A JP2004128386A JP2005305520A JP 2005305520 A JP2005305520 A JP 2005305520A JP 2004128386 A JP2004128386 A JP 2004128386A JP 2004128386 A JP2004128386 A JP 2004128386A JP 2005305520 A JP2005305520 A JP 2005305520A
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Prior art keywords
bending
workpiece
die
arm
mold
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Japanese (ja)
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Teruaki Yogo
照明 與語
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Opton Co Ltd
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Opton Co Ltd
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Application filed by Opton Co Ltd filed Critical Opton Co Ltd
Priority to JP2004128386A priority Critical patent/JP2005305520A/en
Priority to EP05008905A priority patent/EP1595612A1/en
Priority to KR1020050033550A priority patent/KR20060047408A/en
Priority to US11/112,300 priority patent/US20050235720A1/en
Publication of JP2005305520A publication Critical patent/JP2005305520A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/021—Construction of forming members having more than one groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • B21D11/07—Making serpentine-shaped articles by bending essentially in one plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/16—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts using prefabricated panel-like elements, e.g. wired frames
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
    • E04H17/20—Posts therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a bending device which has a simple structure and can bend a long workpiece to right and left directions. <P>SOLUTION: The bending device has a bending die 6 matching a bending shape and a bending arm 12 rotatable around the bending die 6. The long workpiece 1 is bent by rotating the bending die 6 together with the rotation of the bending arm 12. A pair of right and left clamping dies 50, 52 are arranged on the bending arm 12, which pinch the workpiece 1 between the bending die 6 and themselves by moving toward the workpiece 1, and a selection mechanism 26 is also arranged which rotates either the bending arm 12 or the bending die 6. Furthermore, a transfer mechanism 82 is also provided for sending the workpiece 1 to the longitudinal direction by gripping the workpiece 1 with a chuck 80 and also shifting it to two directions rectangular to the longitudinal direction of the workpiece 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、長尺状の被加工物を左右両方向に曲げ加工する曲げ加工装置に関する。   The present invention relates to a bending apparatus for bending a long workpiece in both left and right directions.

従来より、長尺状の被加工物を左右両方向に曲げ加工するものとして、特許文献１にあるように、右曲げ形状に応じた圧力型、曲げ型、締め型からなる右曲げ治具と、左曲げ形状に応じた圧力型、曲げ型、締め型からなる左曲げ治具とを備えたものが知られている。   Conventionally, as a method of bending a long workpiece in both left and right directions, as disclosed in Patent Document 1, a right bending jig including a pressure die, a bending die, and a clamping die according to a right bending shape; A device provided with a left bending jig comprising a pressure die, a bending die, and a clamping die according to the left bending shape is known.

そして、右方向に曲げ加工する場合には、右曲げ治具を右曲げ加工中心に応じた位置に移動させて右曲げ加工を行い、左曲げ加工する場合には、左曲げ治具を左曲げ加工中心に応じた位置に移動させて、左右両方向に曲げ加工していた。
特開昭６２−２６７０２４号公報 When bending to the right, move the right bending jig to a position corresponding to the center of the right bending process to perform right bending, and to perform left bending, turn the left bending jig to the left. It was moved to a position corresponding to the processing center and bent in both the left and right directions.
JP 62-267024 A

しかしながら、こうした従来のものでは、その曲げ方向に応じて、右曲げ治具と左曲げ治具とをそれぞれの曲げ加工中心に応じた位置に移動していた。そのため、それぞれ曲げ型、締め型からなる大型で重い左右曲げ治具をそっくりそのまま移動しなければならず、装置が複雑で大型になるという問題があった。   However, in such a conventional device, the right bending jig and the left bending jig are moved to positions corresponding to the respective bending centers in accordance with the bending direction. Therefore, the large and heavy left and right bending jigs, each consisting of a bending die and a clamping die, have to be moved as they are, and there is a problem that the apparatus becomes complicated and large.

本発明の課題は、簡単な構成で長尺状の被加工物を左右方向に曲げ加工できる曲げ加工装置を提供することにある。   An object of the present invention is to provide a bending apparatus capable of bending a long workpiece in the left-right direction with a simple configuration.

かかる課題を達成すべく、本発明は課題を解決するため次の手段を取った。即ち、
曲げ形状に応じた曲げ型を有すると共に、該曲げ型を中心として回転する曲げアームを有し、前記曲げアームの回転と共に、前記曲げ型を回転して、長尺状の被加工物を曲げ加工する曲げ加工装置において、
前記曲げアームに前記被加工物に向かって移動して前記曲げ型とにより前記被加工物を挟持する左右一対の締め型を配置し、かつ、前記曲げアームと前記曲げ型との一方を回転させる選択機構を備えたことを特徴とする曲げ加工装置がそれである。 In order to achieve this problem, the present invention has taken the following measures in order to solve the problem. That is,
It has a bending die according to the bending shape, and has a bending arm that rotates around the bending die, and rotates the bending die along with the rotation of the bending arm to bend a long workpiece. In the bending device to
A pair of left and right clamping dies that move toward the workpiece and clamp the workpiece by the bending die are disposed on the bending arm, and one of the bending arm and the bending die is rotated. It is a bending apparatus characterized by comprising a selection mechanism.

前記被加工物をチャックにより把持して前記被加工物を長手方向に送給すると共に、前記被加工物の長手方向と直交する２方向に移動する送給機構を備えた構成としてもよい。また、前記曲げ加工時に、前記被加工物に接触して曲げ加工時の曲げ反力を受ける右圧力型と左圧力型とを、前記曲げ型を間にして、その両側に配置した構成としてもよい。更に、前記曲げ型と前記左右締め型とは、曲げ形状が異なる複数段に形成されたものでもよい。また、前記左右一対の締め型を、個別に前記被加工物に向かって移動する構成としてもよい。   The workpiece may be gripped by a chuck to feed the workpiece in the longitudinal direction, and may be configured to include a feeding mechanism that moves in two directions orthogonal to the longitudinal direction of the workpiece. In addition, a right pressure mold and a left pressure mold that are in contact with the workpiece and receive a bending reaction force during the bending process may be disposed on both sides of the bending mold in the bending process. Good. Furthermore, the bending die and the right and left clamping die may be formed in a plurality of stages having different bending shapes. Further, the pair of left and right clamping molds may be configured to move individually toward the workpiece.

本発明の曲げ加工装置は、左右一対の締め型を曲げアームに配置し、曲げアームと曲げ型との一方を回転させることにより、簡単な構成で長尺状の被加工物を左右方向に曲げ加工できるという効果を奏する。送給機構がチャックを被加工物の長手方向と直交する２方向に移動することにより、１本の被加工物に左右曲げ加工を施すことができる。   In the bending apparatus of the present invention, a pair of left and right clamping molds are arranged on a bending arm, and one of the bending arm and the bending mold is rotated to bend a long workpiece in a horizontal direction with a simple configuration. There is an effect that it can be processed. When the feeding mechanism moves the chuck in two directions orthogonal to the longitudinal direction of the workpiece, a single workpiece can be bent left and right.

以下本発明を実施するための最良の形態を図面に基づいて詳細に説明する。
図１、図２に示すように、１は長尺状のパイプを用いた被加工物で、被加工物１の外形に対応した曲げ溝２ａ，２ｂが曲げ形状に応じて複数段、本実施形態では大径部４ａと小径部４ｂとの２段に形成された曲げ型６が、配置されている。大径部４ａと小径部４ｂとは、被加工物１の長手方向と直交する方向に積層されて形成されている。 The best mode for carrying out the present invention will be described below in detail with reference to the drawings.
As shown in FIGS. 1 and 2, reference numeral 1 denotes a workpiece using a long pipe, and bending grooves 2a and 2b corresponding to the outer shape of the workpiece 1 have a plurality of steps according to the bending shape. In the embodiment, a bending die 6 formed in two steps of a large diameter portion 4a and a small diameter portion 4b is disposed. The large diameter portion 4 a and the small diameter portion 4 b are formed by being stacked in a direction orthogonal to the longitudinal direction of the workpiece 1.

曲げ型６の大径部４ａと小径部４ｂとは、それぞれ半円状の曲げ部４ａ１，４ｂ１と長方形状のクランプ部４ａ２，４ｂ２とから形成されており、左右対称の形状に形成されている。曲げ溝２ａ，２ｂは、曲げ部４ａ１，４ｂ１とクランプ部４ａ２，４ｂ２とに連続して形成されている。   The large-diameter portion 4a and the small-diameter portion 4b of the bending die 6 are formed by semicircular bent portions 4a1 and 4b1 and rectangular clamp portions 4a2 and 4b2, respectively, and are formed in a symmetrical shape. . The bending grooves 2a and 2b are formed continuously in the bending portions 4a1 and 4b1 and the clamp portions 4a2 and 4b2.

被加工物１の長手方向と直交して、曲げ型６と同軸上に曲げ軸８が装置本体１０に回転可能に支持されており、曲げ型６は曲げ軸８の端面に固定されている。曲げ軸８には、曲げアーム１２が回転可能に支持されており、曲げアーム１２には一対の左右締め台１４，１６がリンク機構１８（一方のみ図示する）により揺動可能に支持されている。   A bending shaft 8 is rotatably supported by the apparatus main body 10 coaxially with the bending die 6 and orthogonal to the longitudinal direction of the workpiece 1, and the bending die 6 is fixed to the end surface of the bending shaft 8. A bending arm 12 is rotatably supported on the bending shaft 8, and a pair of left and right fastening bases 14 and 16 are supported on the bending arm 12 so as to be swingable by a link mechanism 18 (only one is shown). .

図２に示すように、リンク機構１８は、右締め台１６を、駆動リンク２０と従動リンク２２とにより、曲げ型６に接近・離間するように、移動可能に支持している。駆動リンク２０と従動リンク２２とにより平行リンクが形成されており、駆動リンク２０には曲げアーム１２に揺動可能に支持された油圧シリンダ２４のロッドが連結されている。他方の左締め台１４についても同様に、別のリンク機構により移動可能に支持され、図示しない油圧シリンダにより左締め台１４を移動駆動できるように構成されている。   As shown in FIG. 2, the link mechanism 18 supports the right fastening base 16 by a drive link 20 and a driven link 22 so as to be movable toward and away from the bending die 6. A parallel link is formed by the drive link 20 and the driven link 22, and a rod of a hydraulic cylinder 24 that is swingably supported by the bending arm 12 is connected to the drive link 20. Similarly, the other left fastening base 14 is movably supported by another link mechanism, and is configured so that the left fastening base 14 can be driven to move by a hydraulic cylinder (not shown).

曲げ軸８には、図２，図３に示すように、選択機構２６が設けられており、選択機構２６は、曲げ軸８の端に取り付けられた接続部材２８を備え、接続部材２８には、その端側に凹部３０が形成されている。接続部材２８に対向して、凹部３０に嵌合する凸部３２を有するクラッチ部材３４が配置されており、クラッチ部材３４は曲げ軸８と同軸上に配置された駆動軸３６に摺動可能に支持されている。   As shown in FIGS. 2 and 3, the bending shaft 8 is provided with a selection mechanism 26, and the selection mechanism 26 includes a connecting member 28 attached to the end of the bending shaft 8. A recess 30 is formed on the end side. A clutch member 34 having a convex portion 32 that fits into the concave portion 30 is disposed facing the connection member 28, and the clutch member 34 is slidable on a drive shaft 36 that is disposed coaxially with the bending shaft 8. It is supported.

駆動軸３６の端は、接続部材２８に挿入・固定されており、曲げ軸８と駆動軸３６とは一体的に回転するように接続されている。駆動軸３６は装置本体１０に回転可能に支持されると共に、駆動軸３６は装置本体１０に取り付けられたモータ３８により、ベルト４０を介して回転駆動されるように構成されている。   The end of the drive shaft 36 is inserted and fixed to the connecting member 28, and the bending shaft 8 and the drive shaft 36 are connected to rotate integrally. The drive shaft 36 is rotatably supported by the apparatus main body 10, and the drive shaft 36 is configured to be rotationally driven via a belt 40 by a motor 38 attached to the apparatus main body 10.

クラッチ部材３４には、その外周に環状溝４２が形成されており、装置本体１０に揺動可能に支持されたレバー４４の先端に取り付けられたカムフォロアー４５が環状溝４２に装着されている。レバー４４の他端には、装置本体１０に取り付けられたソレノイド４６のロッドが接続されている。ソレノイド４６の駆動により、クラッチ部材３４を駆動軸３６の軸方向に摺動して、凹部３０と凸部３２との嵌合・離脱を選択できるように構成されている。   An annular groove 42 is formed on the outer periphery of the clutch member 34, and a cam follower 45 attached to the tip of a lever 44 that is swingably supported by the apparatus main body 10 is attached to the annular groove 42. A rod of a solenoid 46 attached to the apparatus main body 10 is connected to the other end of the lever 44. By driving the solenoid 46, the clutch member 34 is slid in the axial direction of the drive shaft 36 so that the fitting / removal between the concave portion 30 and the convex portion 32 can be selected.

クラッチ部材３４は曲げアーム１２に沿って突出されており、曲げアーム１２に立設された駆動ピン４８がクラッチ部材３４に係合されている。クラッチ部材３４が駆動軸３６と共に回転した際には、駆動軸３６の回転がクラッチ部材３４及び駆動ピン４８を介して曲げアーム１２に伝達されるように構成されている。   The clutch member 34 protrudes along the bending arm 12, and a drive pin 48 erected on the bending arm 12 is engaged with the clutch member 34. When the clutch member 34 rotates with the drive shaft 36, the rotation of the drive shaft 36 is transmitted to the bending arm 12 via the clutch member 34 and the drive pin 48.

一方、左右締め台１４，１６には、曲げ型６と対向して、それぞれ左右締め型５０，５２が設けられており、図２に示すように、右締め型５２は、曲げ型６と同様に、複数段に、本実施形態では、大径部４ａと小径部４ｂとに対応して、２段に形成されている。左締め型５０も右締め型５２と同じ形状に形成されており、本実施形態では、２段に形成されている。   On the other hand, the left and right clamping bases 14 and 16 are provided with left and right clamping dies 50 and 52, respectively, facing the bending mold 6. The right clamping mold 52 is similar to the bending mold 6 as shown in FIG. In addition, in this embodiment, two stages are formed corresponding to the large diameter part 4a and the small diameter part 4b. The left-clamping die 50 is also formed in the same shape as the right-clamping die 52, and is formed in two stages in this embodiment.

左右締め型５０，５２は並列に配置されており、図１に示すように、後述する右曲げの際には、右締め型５２が曲げ型６のクランプ部４ａ２，４ｂ２と対向するように配置され、図５に示すように、後述する左曲げの際には、左締め型５０が曲げ型６のクランプ部４ａ２，４ｂ２と対向するように配置されている。   The left and right clamping dies 50 and 52 are arranged in parallel, and as shown in FIG. 1, the right clamping dies 52 are arranged so as to face the clamp portions 4 a 2 and 4 b 2 of the bending mold 6 at the time of right bending described later. As shown in FIG. 5, the left-clamping die 50 is disposed so as to face the clamp portions 4 a 2 and 4 b 2 of the bending die 6 during left bending described later.

また、図１、図４に示すように、被加工物１を間にして、その両側に左右圧力型５４，５６が配置されており、左右圧力型５４，５６はそれぞれ左右圧力台５８，６０に取り付けられている。左右圧力台５８，６０はリンク機構６２，６４を介して装置本体１０に移動可能に支持されており、リンク機構６２，６４はそれぞれ駆動リンク６６，６８と従動リンク７０，７２とにより、左右圧力台５８，６０を移動可能に支持している。駆動リンク６６，６８と従動リンク７０，７２とにより平行リンクが形成されており、駆動リング６６，６８には装置本体１０に揺動可能に支持された油圧シリンダ７４，７６のロッドが連結されている。   As shown in FIGS. 1 and 4, left and right pressure dies 54 and 56 are disposed on both sides of the workpiece 1, with the left and right pressure dies 54 and 56 respectively being left and right pressure pedestals 58 and 60. Is attached. The left and right pressure tables 58 and 60 are movably supported by the apparatus main body 10 via link mechanisms 62 and 64. The link mechanisms 62 and 64 are respectively provided with left and right pressures by drive links 66 and 68 and driven links 70 and 72, respectively. The stands 58 and 60 are movably supported. The drive links 66 and 68 and the driven links 70 and 72 form a parallel link. The drive rings 66 and 68 are connected to rods of hydraulic cylinders 74 and 76 that are swingably supported by the apparatus body 10. Yes.

図１に示すように、被加工物１の後端は、チャック８０に把持されており、被加工物１を把持したチャック８０を被加工物１の長手方向に移動する送給機構８２が装置本体１０に設けられている。送給機構８２は、装置本体１０に被加工物１と平行に敷設されたレール８４を備え、レール８４には、送給台８６が移動可能に係合されている。   As shown in FIG. 1, the rear end of the workpiece 1 is held by a chuck 80, and a feeding mechanism 82 that moves the chuck 80 holding the workpiece 1 in the longitudinal direction of the workpiece 1 is an apparatus. The main body 10 is provided. The feeding mechanism 82 includes a rail 84 laid on the apparatus main body 10 in parallel with the workpiece 1, and a feeding base 86 is movably engaged with the rail 84.

送給台８６には、被加工物１の長手方向と直交する方向に一対のレール８８に沿って移動する移動台９０が設けられており、図４に示すように、移動台９０には案内部材９２が立設されており、チャック８０を被加工物１の長手方向と直交すると共に、レール８８とも直交する上下方向に昇降させるように構成されている。   The feeding table 86 is provided with a moving table 90 that moves along a pair of rails 88 in a direction perpendicular to the longitudinal direction of the workpiece 1. As shown in FIG. A member 92 is erected, and is configured to move the chuck 80 up and down in a vertical direction perpendicular to the longitudinal direction of the workpiece 1 and also perpendicular to the rail 88.

次に、前述した本実施形態の曲げ加工装置の作動について説明する。
まず、被加工物１の後端をチャック８０により把持し、曲げ型６の大径部４ａにより右曲げ加工を行なう場合には、送給機構８２により、図１、図２に示すように、チャック８０を被加工物１と直交する２方向にに移動して、被加工物１を溝２ａに装着する。 Next, the operation of the bending apparatus of this embodiment described above will be described.
First, when the rear end of the workpiece 1 is gripped by the chuck 80 and right bending is performed by the large-diameter portion 4a of the bending die 6, as shown in FIG. 1 and FIG. The chuck 80 is moved in two directions orthogonal to the workpiece 1, and the workpiece 1 is mounted in the groove 2a.

また、油圧シリンダ２４を駆動して、右締め型５２を移動し、曲げ型６と右締め型５２とにより、被加工物１を締め付ける。次に、図４及び図６（イ）に示すように、油圧シリンダ７６を駆動して、右圧力型５６を移動し、右圧力型５６を被加工物１の外周に押し当てる。   Further, the hydraulic cylinder 24 is driven, the right clamping mold 52 is moved, and the workpiece 1 is clamped by the bending mold 6 and the right clamping mold 52. Next, as shown in FIGS. 4 and 6A, the hydraulic cylinder 76 is driven to move the right pressure die 56 and press the right pressure die 56 against the outer periphery of the workpiece 1.

モータ３８を駆動して、ベルト４０を介して駆動軸３６を回転すると、駆動軸３６と共に曲げ軸８が回転し、クラッチ部材３４、駆動ピン４８を介して、図６（ロ）に示すように、曲げアーム１２が曲げ型６を中心として回転する。これにより、被加工物１が大径部４ａの溝２ａに巻き付けられるようにして右曲げ加工が行われ、その際の曲げ反力が右圧力型５６により受けられる。   When the drive shaft 36 is rotated via the belt 40 by driving the motor 38, the bending shaft 8 rotates together with the drive shaft 36, and the clutch member 34 and the drive pin 48 are used as shown in FIG. The bending arm 12 rotates around the bending die 6. As a result, the workpiece 1 is wound around the groove 2 a of the large-diameter portion 4 a so that the right bending is performed, and the bending reaction force at that time is received by the right pressure die 56.

曲げアーム１２をほぼ１８０度回転すると、Ｕ字状に被加工物１が曲げ加工される。右曲げ加工終了後、油圧シリンダ２４を駆動して、右締め型５２を曲げ型６から離間すると共に、油圧シリンダ７６を駆動して、右圧力型５６を被加工物１から離間する。尚、曲げ角度は１８０度に限らず、９０度等でもよい。   When the bending arm 12 is rotated approximately 180 degrees, the workpiece 1 is bent into a U shape. After completion of the right bending process, the hydraulic cylinder 24 is driven to separate the right clamping mold 52 from the bending mold 6 and the hydraulic cylinder 76 is driven to separate the right pressure mold 56 from the workpiece 1. The bending angle is not limited to 180 degrees and may be 90 degrees.

そして、引き続いて左曲げ加工する場合には、送給機構８２により、被加工物１を長手方向に送給する。また、ソレノイド４６を駆動して、レバー４４、カムフォロアー４５を介して、クラッチ部材３４を駆動軸３６の軸方向に摺動させて、凸部３２を凹部３０から離脱させる。   When the left bending process is subsequently performed, the workpiece 1 is fed in the longitudinal direction by the feeding mechanism 82. Further, the solenoid 46 is driven, and the clutch member 34 is slid in the axial direction of the drive shaft 36 via the lever 44 and the cam follower 45, and the convex portion 32 is detached from the concave portion 30.

この状態で、モータ３８を駆動して、駆動軸３６を介して曲げ軸８を１８０度回転させることにより、曲げ型６が、図７（イ）に示すように、１８０度回転される。その際、曲げアーム１２は、凹部３０と凸部３２とが離脱しているので、回転しない。これにより、左締め型５０が曲げ型６のクランプ部４ａ２，４ｂ２と対向する。   In this state, by driving the motor 38 and rotating the bending shaft 8 through the drive shaft 36 by 180 degrees, the bending die 6 is rotated 180 degrees as shown in FIG. At that time, the bending arm 12 does not rotate because the concave portion 30 and the convex portion 32 are detached. Thereby, the left clamping die 50 faces the clamp portions 4a2 and 4b2 of the bending die 6.

送給機構８２により、チャック８０を被加工物１の長手方向と直交する２方向に移動する。曲げ型６を跨ぐように移動して、被加工物１を曲げ型６の反対側の溝２ａに装着する。そして、図示しない油圧シリンダを駆動して、左締め型５０を移動して、クランプ部４ａ２と左締め型５０とにより被加工物１を締め付ける。油圧シリンダ７４を駆動して、左圧力型５４を移動して、左圧力型５４を被加工物１の外周に押し当てる。   The feed mechanism 82 moves the chuck 80 in two directions orthogonal to the longitudinal direction of the workpiece 1. The workpiece 1 is moved so as to straddle the bending die 6 and is mounted in the groove 2 a on the opposite side of the bending die 6. Then, a hydraulic cylinder (not shown) is driven to move the left-clamping die 50, and the workpiece 1 is clamped by the clamp portion 4a2 and the left-clamping die 50. The hydraulic cylinder 74 is driven to move the left pressure die 54 and press the left pressure die 54 against the outer periphery of the workpiece 1.

また、ソレノイド４６を駆動して、レバー４４、カムフォロアー４５を介して、クラッチ部材３４を摺動して、凸部３２を凹部３０に嵌合させる。図７（ロ）に示すように、モータ３８を駆動して、駆動軸３６を介して、曲げ軸８を回転させると共に、曲げアーム１２を曲げ型６を中心に回転させる。   Further, the solenoid 46 is driven to slide the clutch member 34 via the lever 44 and the cam follower 45 so that the convex portion 32 is fitted into the concave portion 30. As shown in FIG. 7B, the motor 38 is driven to rotate the bending shaft 8 through the drive shaft 36 and to rotate the bending arm 12 around the bending die 6.

これにより、被加工物１が溝２ａに巻き付けられるようにして、左曲げ加工が行われる。ほぼ１８０度回転させた後、左締め型５０を曲げ型６から離間すると共に、左圧力型５４を被加工物１から離間する。尚、小径部４ｂにより曲げ加工する場合には、送給機構８２により被加工物１を移動して、被加工物１を小径部４ｂの曲げ溝２ｂに装着して、同様に右曲げ加工、左曲げ加工を行えばよい。   Thereby, the left bending process is performed so that the workpiece 1 is wound around the groove 2a. After rotating approximately 180 degrees, the left clamping die 50 is separated from the bending die 6 and the left pressure die 54 is separated from the workpiece 1. In addition, when bending by the small diameter part 4b, the workpiece 1 is moved by the feeding mechanism 82, the workpiece 1 is mounted in the bending groove 2b of the small diameter part 4b, and the right bending process is similarly performed. A left bending process may be performed.

このように、曲げアーム１２に左右締め型５０，５２を配置すると共に、選択機構２６により、曲げ軸８を回転させて、曲げ方向に応じて、曲げ型６を１８０度切り換えることができるようにすることにより、一つの曲げ型６からなる簡単な構造で左右曲げ加工を行うことができる。また、送給機構８２がチャック８０を被加工物１の長手方向と直交する２方向に移動することにより、１本の被加工物１に左右曲げ加工を容易に施すことができる。尚、選択機構２６は、一つのモータ３８の回転を、クラッチ部材３４等で切り換える場合に限らず、曲げ型６を回転させる駆動源と、曲げアーム１２を回転させる駆動源とを別々に備えた構成でもよい。   In this way, the left and right clamping dies 50 and 52 are disposed on the bending arm 12 and the bending shaft 8 is rotated by the selection mechanism 26 so that the bending die 6 can be switched 180 degrees according to the bending direction. By doing so, the left and right bending can be performed with a simple structure consisting of one bending die 6. Further, when the feeding mechanism 82 moves the chuck 80 in two directions orthogonal to the longitudinal direction of the workpiece 1, left and right bending can be easily performed on the single workpiece 1. The selection mechanism 26 is not limited to the case where the rotation of one motor 38 is switched by the clutch member 34 or the like, and includes a drive source for rotating the bending mold 6 and a drive source for rotating the bending arm 12 separately. It may be configured.

以上本発明はこの様な実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲において種々なる態様で実施し得る。   The present invention is not limited to such embodiments as described above, and can be implemented in various modes without departing from the gist of the present invention.

本発明の一実施形態としての曲げ加工装置の概略構成を示す右曲げ時の平面図である。It is a top view at the time of the right bending which shows schematic structure of the bending apparatus as one Embodiment of this invention. 図１のＡＡ拡大断面図である。It is AA expanded sectional drawing of FIG. 図２のＢ矢視図である。FIG. 3 is a view taken in the direction of arrow B in FIG. 2. 図１のＣＣ拡大断面図である。It is CC expanded sectional drawing of FIG. 本実施形態の曲げ加工装置の概略構成を示す左曲げ時の平面図である。It is a top view at the time of the left bending which shows schematic structure of the bending processing apparatus of this embodiment. 本実施形態の右曲げ時の配置を示す説明図である。It is explanatory drawing which shows the arrangement | positioning at the time of the right bending of this embodiment. 本実施形態の左曲げ時の配置を示す説明図である。It is explanatory drawing which shows the arrangement | positioning at the time of the left bending of this embodiment.

符号の説明Explanation of symbols

１…被加工物 ２ａ，２ｂ…曲げ溝
６…曲げ型 ８…曲げ軸
１０…装置本体 １２…曲げアーム
１８…リンク機構 ２６…選択機構
３０…凹部 ３２…凸部
３４…クラッチ部材 ３６…駆動軸
３８…モータ ４６…ソレノイド
４８…駆動ピン ５０…左締め型
５２…右締め型 ５４…左圧力型
５６…右圧力型 ６２，６４…リンク機構
８０…チャック ８２…送給機構
８６…送給台 ９０…移動台
９２…案内部材 DESCRIPTION OF SYMBOLS 1 ... Workpiece 2a, 2b ... Bending groove 6 ... Bending die 8 ... Bending shaft 10 ... Apparatus main body 12 ... Bending arm 18 ... Link mechanism 26 ... Selection mechanism 30 ... Concave part 32 ... Convex part 34 ... Clutch member 36 ... Drive shaft 38 ... Motor 46 ... Solenoid 48 ... Drive pin 50 ... Left-clamping mold 52 ... Right-clamping mold 54 ... Left pressure mold 56 ... Right pressure mold 62,64 ... Link mechanism 80 ... Chuck 82 ... Feed mechanism 86 ... Feeding base 90 ... Movement base 92 ... Guide member

Claims (5)

曲げ形状に応じた曲げ型を有すると共に、該曲げ型を中心として回転する曲げアームを有し、前記曲げアームの回転と共に、前記曲げ型を回転して、長尺状の被加工物を曲げ加工する曲げ加工装置において、
前記曲げアームに前記被加工物に向かって移動して前記曲げ型とにより前記被加工物を挟持する左右一対の締め型を配置し、かつ、前記曲げアームと前記曲げ型との一方を回転させる選択機構を備えたことを特徴とする曲げ加工装置。 It has a bending die according to the bending shape, and has a bending arm that rotates around the bending die, and rotates the bending die along with the rotation of the bending arm to bend a long workpiece. In the bending device to
A pair of left and right clamping dies that move toward the workpiece and clamp the workpiece by the bending die are disposed on the bending arm, and one of the bending arm and the bending die is rotated. A bending apparatus comprising a selection mechanism. 前記被加工物をチャックにより把持して前記被加工物を長手方向に送給すると共に、前記被加工物の長手方向と直交する２方向に移動する送給機構を備えたことを特徴とする請求項１に記載の曲げ加工装置。 The apparatus further comprises a feeding mechanism that grips the workpiece by a chuck and feeds the workpiece in a longitudinal direction and moves in two directions orthogonal to the longitudinal direction of the workpiece. Item 2. A bending apparatus according to Item 1. 前記曲げ加工時に、前記被加工物に接触して曲げ加工時の曲げ反力を受ける右圧力型と左圧力型とを、前記曲げ型を間にして、その両側に配置したことを特徴とする請求項１又は請求項２に記載の曲げ加工装置。 A right pressure mold and a left pressure mold that are in contact with the workpiece and receive a bending reaction force during the bending process are arranged on both sides of the bending mold in the bending process. The bending apparatus according to claim 1 or 2. 前記曲げ型と前記左右締め型とは、曲げ形状が異なる複数段に形成されていることを特徴とする請求項１ないし請求項３に記載の曲げ加工装置。 The bending apparatus according to any one of claims 1 to 3, wherein the bending mold and the right and left clamping mold are formed in a plurality of stages having different bending shapes. 前記左右一対の締め型を、個別に前記被加工物に向かって移動することを特徴とする請求項１ないし請求項４に記載の曲げ加工装置。
The bending apparatus according to any one of claims 1 to 4, wherein the pair of left and right clamping dies are individually moved toward the workpiece.
JP2004128386A 2004-04-23 2004-04-23 Bending device Pending JP2005305520A (en)

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KR1020050033550A KR20060047408A (en) 2004-04-23 2005-04-22 Bending processing device
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