JP2008229827A - Work supporting block - Google Patents

Work supporting block Download PDF

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JP2008229827A
JP2008229827A JP2007077181A JP2007077181A JP2008229827A JP 2008229827 A JP2008229827 A JP 2008229827A JP 2007077181 A JP2007077181 A JP 2007077181A JP 2007077181 A JP2007077181 A JP 2007077181A JP 2008229827 A JP2008229827 A JP 2008229827A
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base
workpiece
support member
work
coil spring
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Kenji Suenaga
賢治 末永
Koji Nozaki
功次 野崎
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a work supporting block with a simple structure capable of tiltably connecting a supporting member supporting the work to a base at a spherical joining surface in a close contact state. <P>SOLUTION: In the work supporting block, the supporting member 3 supporting the work W is brought into close contact with the base 2 at the spherical joining surface and the supporting member 3 and the base 2 are connected each other at the joining surface 5 with a fastening bolt 15 inserted into a conical coil spring 11. Accordingly the supporting member 3 supporting the work W can be tiltably connected to the base 2 in the state of being constantly brought into close contact with the base 2 at the spherical joining surface 5. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、ワークを支持する支持部材を基台に傾動自在に載置したワークの支持ブロックに関するものである。   The present invention relates to a work support block in which a support member for supporting a work is placed on a base so as to be tiltable.

従来から、鋳抜き後の黒皮素材のワークを機械加工する際、例えば、図１に示すように、ワークＷをフライス盤の作業テーブル１上にクランプする場合には、ワークＷを、作業テーブル１上に複数配置された基台５１上の各支持部材５０に載置すると共に、ワークＷの周辺に備えられた複数の押圧機構４によりワークＷの上面Ｗ１の複数箇所が押圧されて、ワークＷが作業ベース１上にクランプされる。
また、図５に示すように、支持部材５１の上面に支持されるワークＷの下面Ｗ２は鋳肌面であり、該下面Ｗ２は水平面に対して幾分傾斜していたり、凹凸状となっているため、図４及び図５に示すように、円板状の支持部材５０と円柱状の基台５１との合わせ面５が球面状に形成され、支持部材５０が基台５１に対してフレキブルに傾動できるワークの支持ブロックが採用されている。
そして、図５に示すように、ワークＷを作業テーブル１上にクランプする際、ワークＷの下面Ｗ２を支持部材５０の上面に載置すると、支持部材５０が、ワークＷの下面Ｗ２の傾斜に沿って基台５１との合わせ面５で傾動し、ワークＷの上面Ｗ１が略水平面となり、図１に示すように、ワークＷの上面Ｗ１の外周部の複数箇所を各押圧機構４により押圧してワークＷをクランプするようにしている。 Conventionally, when machining a black skin workpiece after punching, for example, as shown in FIG. 1, when the workpiece W is clamped on a work table 1 of a milling machine, the workpiece W is used as the work table 1. While being placed on each support member 50 on a plurality of bases 51 arranged above, a plurality of locations on the upper surface W1 of the workpiece W are pressed by a plurality of pressing mechanisms 4 provided around the workpiece W, and the workpiece W Is clamped on the working base 1.
Further, as shown in FIG. 5, the lower surface W2 of the workpiece W supported on the upper surface of the support member 51 is a casting surface, and the lower surface W2 is somewhat inclined with respect to the horizontal plane or is uneven. Therefore, as shown in FIGS. 4 and 5, the mating surface 5 of the disk-shaped support member 50 and the columnar base 51 is formed in a spherical shape, and the support member 50 is flexible with respect to the base 51. A work support block that can be tilted is used.
As shown in FIG. 5, when the work W is clamped on the work table 1, when the lower surface W2 of the work W is placed on the upper surface of the support member 50, the support member 50 is inclined to the lower surface W2 of the work W. The upper surface W1 of the workpiece W becomes a substantially horizontal plane, and a plurality of locations on the outer peripheral portion of the upper surface W1 of the workpiece W are pressed by the pressing mechanisms 4 as shown in FIG. The work W is clamped.

しかしながら、図４及び図５に示すように、従来のワークの支持ブロックでは、支持部材５０と基台５１とは、球面状に形成された合わせ面５で密着されるだけで分離できる構造であるために、ワークＷを支持部材５０の上面に載置する際など、作業員が支持部材５０に手を添えていないと、支持部材５０が基台５１との合わせ面５上で滑り、基台５１上から落下し荷崩れを起こす虞があった。さらに、支持部材５０と基台５１との合わせ面５に異物が混入することで、ワークＷのクランプ力が低下したり、支持部材５０を基台５１に合わせ面５全域で均一に支持することができない等の不都合が発生していた。   However, as shown in FIGS. 4 and 5, in the conventional work support block, the support member 50 and the base 51 can be separated only by being brought into close contact with the mating surface 5 formed in a spherical shape. Therefore, when the work W is placed on the upper surface of the support member 50, if the worker does not touch the support member 50, the support member 50 slides on the mating surface 5 with the base 51, and the base There was a risk of falling from 51 and causing collapse of cargo. Further, foreign matter is mixed into the mating surface 5 between the support member 50 and the base 51, so that the clamping force of the work W is reduced, or the support member 50 is supported on the base 51 uniformly over the entire surface 5. Inconvenience occurred such as not being able to.

そこで、ワークの位置決めおよびクランプ装置の従来技術として特許文献１には、複雑な曲面を有する加工ワークを挟んで装置本体ベース上に、位置決め本体と、油圧クランプ装置を内蔵したクランプ側本体とを対向配置し、これら位置決め本体とクランプ側本体との間にワークを支持する基準ブロックが配設され、これら位置決め本体、クランプ側本体及び基準ブロックは、一端に割出し板を固定した長尺のボールスクリューに螺合されており、該ボールスクリューの回転によりベース上で摺動可能に構成されると共に、前記位置決め本体に備えたクサビ形ロック装置によりワークの位置決めを行い、前記クランプ側本体によりワークの固定を行う曲面自在位置決め及びクランプ装置が開示されている。
特開平６−１２６５６７号公報 Therefore, as a prior art of a workpiece positioning and clamping apparatus, Patent Document 1 discloses that a positioning body and a clamp side body with a built-in hydraulic clamping device are opposed to each other on a machine body base with a workpiece having a complicated curved surface interposed therebetween. A reference block for arranging and supporting a workpiece is disposed between the positioning main body and the clamp-side main body. The positioning main body, the clamp-side main body, and the reference block are long ball screws with an index plate fixed to one end. And is configured to be slidable on the base by the rotation of the ball screw, and the workpiece is positioned by the wedge-shaped locking device provided in the positioning body, and the workpiece is fixed by the clamp-side body. A free-form curved positioning and clamping device is disclosed.
JP-A-6-126567

しかしながら、図４及び図５に示す従来のワークの支持ブロックでは、支持部材５０と基台５１とが分離する構造であるために、ワークＷの支持方向が重力方向のみに限定されてしまう。
また、上述した特許文献１の曲面自在位置決め及びクランプ装置では、構造が複雑のため採用することはできない。しかも、特許文献１に開示された、ワークを支持する基準ブロックでは、ワークの支持される面の傾き等の形状が変更されると、基準ブロックを取り換えなければならず到底採用することはできない。 However, in the conventional work support block shown in FIGS. 4 and 5, since the support member 50 and the base 51 are separated, the support direction of the work W is limited only to the gravity direction.
Further, the curved surface positioning and clamping device of Patent Document 1 described above cannot be employed due to its complicated structure. Moreover, in the reference block that supports the workpiece disclosed in Patent Document 1, when the shape such as the inclination of the surface supported by the workpiece is changed, the reference block must be replaced and cannot be adopted at all.

本発明は、かかる点に鑑みてなされたものであり、簡易な構造で、ワークを支持する支持部材を基台に球面状の合わせ面にて密着された状態で傾動自在に連結することのできるワークの支持ブロックを提供することを目的とする。   The present invention has been made in view of the above points, and can be connected in a tiltable manner with a simple structure in a state in which a supporting member that supports a workpiece is in close contact with a base on a spherical mating surface. It aims at providing the support block of a workpiece | work.

上記課題を解決するために、本発明のワークの支持ブロックは、支持部材と基台とを円錐状コイルバネ内に挿通した締結ボルトにより連結することを特徴としている。
これにより、ワークを支持する支持部材を基台に球面状の合わせ面にて密着された状態で傾動自在に連結することができる。そして、ワークの、水平面に対して傾斜している下面を支持部材に載置すると、支持部材は球面状の合わせ面にて基台との密着状態が維持されながら、ワークの下面の傾斜に沿って傾動するようになる。
しかも、支持部材と基台とは、合わせ面で常時密着している状態で連結されているので異物等が合わせ面に侵入することもなく、ワークのクランプ力が低下されることはない。
なお、本発明のワークの支持ブロックの各種態様およびそれらの作用については、以下の（発明の態様）の項において詳しく説明する。 In order to solve the above-described problems, the workpiece support block of the present invention is characterized in that the support member and the base are connected by a fastening bolt inserted into a conical coil spring.
As a result, the support member that supports the workpiece can be tiltably coupled to the base while being in close contact with the spherical mating surface. Then, when the lower surface of the workpiece that is inclined with respect to the horizontal plane is placed on the support member, the support member is maintained in close contact with the base at the spherical mating surface, and along the inclination of the lower surface of the workpiece. To tilt.
In addition, since the support member and the base are connected in a state where they are always in close contact with each other on the mating surface, foreign matter or the like does not enter the mating surface, and the clamping force of the workpiece is not reduced.
Various aspects of the work support block of the present invention and their functions will be described in detail in the following section (Aspect of the Invention).

（発明の態様）
以下に、本願において特許請求が可能と認識されている発明（以下、「請求可能発明」という場合がある。）の態様をいくつか例示し、それらについて説明する。なお、各態様は、請求項と同様に、項に区分し、各項に番号を付して、必要に応じて他の項を引用する形式で記載する。これは、あくまでも請求可能発明の理解を容易にするためであり、請求可能発明を構成する構成要素の組み合わせを、以下の各項に記載されたものに限定する趣旨ではない。つまり、請求可能発明は、各項に付随する記載、実施の形態等に参酌して解釈されるべきであり、その解釈に従う限りにおいて、各項の態様にさらに他の構成要件を付加した態様も、また、各項の態様から構成要件を削除した態様も、請求可能発明の一態様となり得るのである。なお、以下の各項において、（１）〜（４）の各々が、請求項１乃至４の各々に相当する。 (Aspect of the Invention)
In the following, some aspects of the invention that can be claimed in the present application (hereinafter sometimes referred to as “claimable invention”) will be exemplified and described. In addition, each aspect is divided into a term like a claim, it attaches | subjects a number to each term, and is described in the format which quotes another term as needed. This is for the purpose of facilitating the understanding of the claimable invention, and is not intended to limit the combinations of the constituent elements constituting the claimable invention to those described in the following sections. In other words, the claimable invention should be construed in consideration of the description, embodiments, etc. accompanying each section, and as long as the interpretation is followed, there may be embodiments in which other constituent elements are added to the aspects of each section. In addition, an aspect in which the constituent elements are deleted from the aspect of each item can be an aspect of the claimable invention. In the following items, each of (1) to (4) corresponds to each of claims 1 to 4.

（１）ワークを支持する支持部材を基台に傾動自在に載置したワークの支持ブロックであって、前記支持部材と前記基台とを円錐状コイルバネ内に挿通した締結ボルトにより連結することを特徴とするワークの支持ブロック。
従って、（１）項のワークの支持ブロックでは、ワークを支持する支持部材を基台に球面状の合わせ面にて密着された状態で傾動自在に連結することができる。
そして、ワークの、水平面に対して傾斜している下面を支持部材に載置すると、支持部材は球面状の合わせ面にて円錐状コイルバネの付勢により基台との密着状態が維持されながら、ワークの下面の傾斜に沿って傾動するようになる。 (1) A work support block in which a support member for supporting a work is placed on a base in a tiltable manner, and the support member and the base are connected by a fastening bolt inserted into a conical coil spring. Support block for workpiece.
Therefore, in the workpiece support block of item (1), the support member supporting the workpiece can be tiltably connected to the base while being in close contact with the spherical mating surface.
And when the lower surface of the workpiece inclined with respect to the horizontal plane is placed on the support member, the support member is maintained in close contact with the base by the bias of the conical coil spring on the spherical mating surface, It tilts along the slope of the lower surface of the workpiece.

（２）前記基台は、前記締結ボルトが挿通する貫通孔と、該貫通孔と段差部を介して連通されるコイルバネ収容孔とを備え、前記貫通孔は前記コイルバネ収容孔よりも小径に形成されることを特徴とする（１）項に記載のワークの支持ブロック。
従って、（２）項のワークの支持ブロックでは、基台のコイルバネ収容孔に配置した円錐状コイルバネの付勢力を容易に、支持部材と基台との合わせ面に伝達させることができる。 (2) The base includes a through hole through which the fastening bolt is inserted, and a coil spring accommodation hole communicated with the through hole through a step portion, and the through hole is formed to have a smaller diameter than the coil spring accommodation hole. The workpiece support block according to item (1), wherein:
Therefore, in the work support block of the item (2), the urging force of the conical coil spring disposed in the coil spring accommodating hole of the base can be easily transmitted to the mating surface of the support member and the base.

（３）前記円錐状コイルバネの大径端部が、前記基台の前記段差部に当接されることを特徴とする（２）項に記載のワークの支持ブロック。
従って、（３）項のワークの支持ブロックでは、支持部材が基台との合わせ面に沿って傾動しても、基台内の円錐状コイルバネは、その大径端部が基台の段差部に当接された状態が維持されると共に、その小径端部が締結ボルトの揺動によって略水平方向に移動し、正規の形状から変形することになるが、その付勢力により合わせ面の密着状態が維持される。 (3) The work block according to (2), wherein a large-diameter end portion of the conical coil spring is brought into contact with the step portion of the base.
Therefore, in the work support block of the item (3), even if the support member tilts along the mating surface with the base, the conical coil spring in the base has a large-diameter end at the stepped portion of the base. The small-diameter end of the fastening bolt is moved in a substantially horizontal direction by the swing of the fastening bolt and deformed from the normal shape. Is maintained.

（４）前記支持部材は前記基体との合わせ面にて密着された状態で傾動自在であり、その傾動範囲は、水平面に対する傾斜角度が略３°までの範囲であることを特徴とする（１）項〜（３）項のいずれかに記載のワークの支持ブロック。
従って、（４）項のワークの支持ブロックは、水平面に対する傾斜角度が３°以内に収まっている下面を有するワークに対して有効に機能する。 (4) The support member is tiltable in a state of being in close contact with the mating surface with the base, and the tilt range is a range where the tilt angle with respect to a horizontal plane is approximately 3 ° (1) The workpiece support block according to any one of items (1) to (3).
Therefore, the workpiece support block of item (4) effectively functions for a workpiece having a lower surface whose inclination angle with respect to the horizontal plane is within 3 °.

（５）前記ワークは、前記支持部材に支持された状態で、前記ワークの上面から押圧されてクランプされることを特徴とする（１）項〜（４）項のいずれかに記載のワークの支持ブロック。
従って、（５）項のワークの支持ブロックでは、支持部材に支持されたワークは、その上面から押圧されることでクランプされる。 (5) The workpiece according to any one of (1) to (4), wherein the workpiece is pressed and clamped from an upper surface of the workpiece while being supported by the support member. Support block.
Therefore, in the work support block of the item (5), the work supported by the support member is clamped by being pressed from the upper surface thereof.

本発明によれば、簡易な構造で、ワークを支持する支持部材を基台に球面状の合わせ面にて密着された状態で傾動自在に連結することのできるワークの支持ブロックを提供することができる。   According to the present invention, it is possible to provide a workpiece support block that can be tiltably connected to a base with a support member that supports the workpiece in close contact with a spherical mating surface with a simple structure. it can.

以下、本発明を実施するための最良の形態を図１〜図３に基いて詳細に説明する。
鋳抜き後の黒皮素材のワークＷを、例えば、図１に示すように、フライス盤の作業テーブル１上にクランプする場合には、作業テーブル１上に基台２が複数配置され、各基台２の上面にワークＷを支持する支持部材３が載置されると共に、ワークＷの周辺には、ワークＷの上面Ｗ１を複数箇所で押圧する押圧機構４が配置される。そして、ワークＷを、各基台２上の各支持部材３の上面に載置すると共に、押圧機構４によりワークＷの上面Ｗ１の複数箇所を押圧して作業テーブル１上にクランプしている。
そして、本発明の実施の形態に係るワークの支持ブロックは、鋳抜き後の黒皮素材のワークＷを支持する支持部材３を基台２に球面状の合わせ面５にて常時密着された状態で傾動自在に連結したものを採用している。以下に本ワークの支持ブロックを詳細に説明する。 Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS.
For example, when clamping the workpiece W made of black skin material on a work table 1 of a milling machine as shown in FIG. 1, a plurality of bases 2 are arranged on the work table 1, and each base A support member 3 that supports the workpiece W is placed on the upper surface of the workpiece 2, and a pressing mechanism 4 that presses the upper surface W1 of the workpiece W at a plurality of locations is disposed around the workpiece W. Then, the workpiece W is placed on the upper surface of each support member 3 on each base 2, and is clamped on the work table 1 by pressing a plurality of locations on the upper surface W <b> 1 of the workpiece W by the pressing mechanism 4.
And the support block of the workpiece | work which concerns on embodiment of this invention is the state which always contact | adhered the support member 3 which supports the workpiece | work W of the black skin raw material after casting to the base 2 with the spherical mating surface 5 It is used that can be tilted together. The support block of this work will be described in detail below.

基台２は、図２及び図３に示すように、上壁部１０を有する有底筒体で形成されており、内部に円錐状コイルバネ１１を収容する円形状のコイルバネ収容孔１２が縦方向に延びている。このコイルバネ収容孔１２の内径は、円錐状コイルバネ１１の大径端部１１ａの外径よりも若干大きく設定されている。また、基台２の上壁部１０の上面は、支持部材３の下面との合わせ面５であり凹球面状に形成されている。さらに、基台２の上壁部１０の略中央には、コイルバネ収容孔１２に連通し、締結ボルト１５が挿通される貫通孔１６が形成されている。この貫通孔１６はコイルバネ収容孔１２よりも小径に形成され、貫通孔１６とコイルバネ収容孔１２との間に段差部１８が形成される。なお、この貫通孔１６は、その内径が支持部材３の傾動に伴って揺動する締結ボルト１５に干渉しない程度に形成される。   As shown in FIGS. 2 and 3, the base 2 is formed of a bottomed cylindrical body having an upper wall portion 10, and a circular coil spring housing hole 12 for housing a conical coil spring 11 is provided in the vertical direction. It extends to. The inner diameter of the coil spring accommodating hole 12 is set to be slightly larger than the outer diameter of the large diameter end portion 11 a of the conical coil spring 11. Further, the upper surface of the upper wall portion 10 of the base 2 is a mating surface 5 with the lower surface of the support member 3 and is formed in a concave spherical shape. Furthermore, a through hole 16 is formed in the approximate center of the upper wall portion 10 of the base 2 so as to communicate with the coil spring accommodation hole 12 and through which the fastening bolt 15 is inserted. The through hole 16 is formed to have a smaller diameter than the coil spring accommodation hole 12, and a step portion 18 is formed between the through hole 16 and the coil spring accommodation hole 12. The through hole 16 is formed so that its inner diameter does not interfere with the fastening bolt 15 that swings as the support member 3 tilts.

支持部材３は、図２及び図３に示すように、ブロック状に形成されており、その上面はワークＷの下面Ｗ２とズレ防止のために凹凸状に形成されている。一方、支持部材３の下面は、基台２の上壁部１０の上面との合わせ面５であり凸球面状に形成されている。また、支持部材３の下面の合わせ面５の略中央には、締結ボルト１５の先端部のねじ部が螺合されるねじ孔１７が開口されている。   As shown in FIGS. 2 and 3, the support member 3 is formed in a block shape, and its upper surface is formed in a concavo-convex shape to prevent deviation from the lower surface W <b> 2 of the workpiece W. On the other hand, the lower surface of the support member 3 is a mating surface 5 with the upper surface of the upper wall portion 10 of the base 2 and is formed in a convex spherical shape. Further, a screw hole 17 into which a screw portion at a tip end portion of the fastening bolt 15 is screwed is opened at a substantially center of the mating surface 5 on the lower surface of the support member 3.

そして、図２に示すように、支持部材３を基台２に球面状の合わせ面５で密着させて、図３（ａ）に示すように、基台２の内部で、その上壁部１０の貫通孔１６周辺の段差部１８に大径端部１１ａが当接されるように円錐状コイルバネ１１を配設する。次に、締結ボルト１５を、その頭部１５ａが円錐状コイルバネ１１の小径端部１１ｂに当接するまで、円錐状コイルバネ１１の内部に挿通すると共に基台２の上壁部１０に設けた貫通孔１６を挿通して、締結ボルト１５の先端部のねじ部を、支持部材３の下面の合わせ面５に設けたねじ孔１７に螺合する。
その結果、支持部材３が基台２に球面状の合わせ面５にて常時密着された状態で傾動自在に連結され、支持部材３と基台２とが合わせ面５を介して一体化されたワークの支持ブロックが形成される。なお、支持部材３が基台２との球面状の合わせ面５にて密着された状態で傾動する様子については、後で詳細に説明する。また、この支持部材３の傾動範囲は、合わせ面５の球面の曲率半径に伴って適宜設定できるが、本実施の形態では、水平面に対する傾斜角度α（図３（ｂ）参照）が略３°までの範囲となる。 Then, as shown in FIG. 2, the support member 3 is brought into close contact with the base 2 with a spherical mating surface 5, and the upper wall portion 10 is formed inside the base 2 as shown in FIG. The conical coil spring 11 is disposed so that the large-diameter end portion 11 a is in contact with the step portion 18 around the through hole 16. Next, the fastening bolt 15 is inserted into the conical coil spring 11 until the head portion 15a abuts on the small diameter end portion 11b of the conical coil spring 11, and the through hole provided in the upper wall portion 10 of the base 2 is provided. 16 is inserted, and the screw portion at the tip of the fastening bolt 15 is screwed into the screw hole 17 provided in the mating surface 5 on the lower surface of the support member 3.
As a result, the support member 3 is connected to the base 2 so as to be tiltable in a state of being always in close contact with the spherical mating surface 5, and the support member 3 and the base 2 are integrated via the mating surface 5. A support block for the workpiece is formed. The manner in which the support member 3 tilts in a state of being in close contact with the spherical mating surface 5 with the base 2 will be described later in detail. Further, the tilting range of the support member 3 can be set as appropriate according to the radius of curvature of the spherical surface of the mating surface 5, but in this embodiment, the tilt angle α (see FIG. 3B) with respect to the horizontal plane is approximately 3 °. It becomes the range.

押圧機構４は、図１に示すように、ワークＷの周辺に複数配置され、高さ調整用ジャッキ２０と、一端がワークＷの上面Ｗ１（スペーサ２５が配置された部位はスペーサ２５の上面）に載置されると共に、他端が高さ調整用ジャッキ２０のロッド２１の上面に載置され水平方向に延びるクランプ材２２と、該クランプ材２２内に上下方向に貫通し、上部に固定ナット２３を有するスクリュシャフト２４とから構成されている。   As shown in FIG. 1, a plurality of pressing mechanisms 4 are arranged around the workpiece W, the height adjusting jack 20 and one end of the upper surface W1 of the workpiece W (the portion where the spacer 25 is arranged is the upper surface of the spacer 25). The clamp member 22 is placed on the upper surface of the rod 21 of the height adjusting jack 20 and extends in the horizontal direction. The clamp member 22 passes through the clamp member 22 in the vertical direction, and the upper portion is a fixing nut. And a screw shaft 24 having 23.

次に、鋳抜き後の黒皮素材のワークＷ、すなわち、各支持部材３の上面に支持される下面Ｗ２が鋳肌面で水平面に対して傾斜しているワークＷを、作業テーブル１上にクランプする工程及び作用を説明する。
まず、ワークＷの下面Ｗ２を各支持部材３の上面に載置する。
すると、各基台２上に連結された各支持部材３が次のように作用する。すなわち、図３（ｂ）に示すように、支持部材３はワークＷの傾斜された下面Ｗ２に沿って基台２との合わせ面５にて傾動すると共に、締結ボルト１５が揺動する。この時、円錐状コイルバネ１１は、その大径端部１１ａが基台２の上壁部１０の段差部１８に当接された状態が維持されると共に、その小径端部１１ｂが締結ボルト１５の頭部１５ａと共に略水平移動して正規の形状から変形するようになる。しかしながら、円錐状コイルバネ１１の付勢力は、支持部材３と基台２との合わせ面５に伝達されるために、支持部材３と基台２とは合わせ面５において密着された状態が維持されることになる。このように、ワークＷが各支持部材３に支持されることで、ワークＷの上面Ｗ１が略水平面となる。
なお、この密着状態が維持される支持部材３の傾動範囲は、上述したように、水平面に対する傾斜角度αが略３°までの範囲とされる。 Next, the workpiece W of the black skin material after the casting, that is, the workpiece W in which the lower surface W2 supported by the upper surface of each supporting member 3 is inclined with respect to the horizontal surface on the casting surface is placed on the work table 1. The process and operation for clamping will be described.
First, the lower surface W <b> 2 of the work W is placed on the upper surface of each support member 3.
Then, each support member 3 connected on each base 2 acts as follows. That is, as shown in FIG. 3B, the support member 3 tilts on the mating surface 5 with the base 2 along the inclined lower surface W2 of the workpiece W, and the fastening bolt 15 swings. At this time, the conical coil spring 11 is maintained in a state in which the large-diameter end portion 11 a is in contact with the stepped portion 18 of the upper wall portion 10 of the base 2, and the small-diameter end portion 11 b of the fastening bolt 15. It moves substantially horizontally together with the head 15a and deforms from a regular shape. However, since the biasing force of the conical coil spring 11 is transmitted to the mating surface 5 between the support member 3 and the base 2, the state in which the support member 3 and the base 2 are in close contact with each other at the mating surface 5 is maintained. Will be. Thus, the workpiece | work W is supported by each support member 3, and the upper surface W1 of the workpiece | work W becomes a substantially horizontal surface.
Note that, as described above, the tilting range of the support member 3 in which the close contact state is maintained is a range in which the tilt angle α with respect to the horizontal plane is approximately 3 °.

次に、ワークＷの上面Ｗ１の外周部で、必要とされる部位にはスペーサ２５が配置され、各高さ調整用ジャッキ２０のロッド２１を所定高さに設定する。続いて、スクリュシャフト２４を上下方向に貫通させた各クランプ材２２の両端を、ワークＷの上面Ｗ１（スペーサ２５が配置された部位はスペーサ２５の上面）及び各高さ調整用ジャッキ２０のロッド２１の上面に載置する。
最後に、各固定ナット２３を回動させることにより、各クランプ材２２によりワークＷ上面Ｗ１の外周部の複数箇所が押圧されて、ワークＷが作業テーブル１上にクランプされる。 Next, a spacer 25 is disposed at a required portion on the outer peripheral portion of the upper surface W1 of the workpiece W, and the rod 21 of each height adjusting jack 20 is set to a predetermined height. Subsequently, both ends of each clamp member 22 penetrating the screw shaft 24 in the vertical direction are connected to the upper surface W1 of the workpiece W (the portion where the spacer 25 is disposed is the upper surface of the spacer 25) and the rod of each height adjusting jack 20. It is placed on the upper surface of 21.
Finally, by rotating each fixing nut 23, a plurality of locations on the outer peripheral portion of the workpiece W upper surface W <b> 1 are pressed by each clamp member 22, and the workpiece W is clamped on the work table 1.

以上説明したように、本発明の実施の形態に係るワークの支持ブロックは、ワークＷを支持する支持部材３を球面状の合わせ面５で基台２に密着させて、支持部材３の下面の合わせ面５に設けたねじ孔１７に、基台２内の円錐状コイルバネ１１内から基台２の上壁部１０の貫通孔１６を挿通させた締結ボルト１５のねじ部を締結することで、支持部材３を基台２上に連結しているので、ワークＷを支持する支持部材３を基台２に球面状の合わせ面５にて常時密着された状態で傾動自在に連結することができる。
これにより、ワークＷを支持部材３の上面に載置する時などに、従来のように支持部材３が基台２との合わせ面５上で滑り、基台２から落下する危険性もなく荷崩れを起すこともないので、支持部材３の落下を防ぐために、作業員が支持部材３に手を添えるような危険な作業を行う必要がなく安全となる。 As described above, the workpiece support block according to the embodiment of the present invention has the support member 3 that supports the workpiece W in close contact with the base 2 with the spherical mating surface 5, and the lower surface of the support member 3. By fastening the screw portion of the fastening bolt 15 through which the through hole 16 of the upper wall portion 10 of the base 2 is inserted from the conical coil spring 11 in the base 2 into the screw hole 17 provided in the mating surface 5, Since the support member 3 is connected to the base 2, the support member 3 that supports the workpiece W can be tiltably connected to the base 2 in a state in which the support member 3 is always in close contact with the spherical matching surface 5. .
As a result, when the workpiece W is placed on the upper surface of the support member 3, the support member 3 slides on the mating surface 5 with the base 2 as in the prior art, and there is no risk of dropping from the base 2. Since the collapse does not occur, it is safe because it is not necessary for the worker to perform a dangerous work such as putting his / her hand on the support member 3 in order to prevent the support member 3 from falling.

また、下面Ｗ２が水平面に対して傾斜しているワークＷを各支持部材３上に載置する際には、各支持部材３が各基台２上をワークＷの下面Ｗ２の傾斜に沿って傾動するために、なんの問題もなく、ワークＷを作業テーブル１にクランプすることができる。
しかも、本ワークの支持ブロックでは、支持部材３は基台２に合わせ面５にて常時密着された状態で傾動自在に締結ボルト１５により連結されているために、合わせ面５に異物等が混入することもなく、支持部材３を基台２に合わせ面５全域で均一に支持することができ、ワークＷのクランプ力が低下することもない。
また、支持部材３と基台２との密着状態を維持させるために円錐状コイルバネ１１を使用しているので、支持部材３を支持する力を支持部材３の略中心に集中することができる。 Moreover, when mounting the workpiece | work W in which the lower surface W2 inclines with respect to a horizontal surface on each support member 3, each support member 3 is on each base 2 along the inclination of the lower surface W2 of the workpiece | work W. Because of the tilting, the workpiece W can be clamped to the work table 1 without any problem.
In addition, in the support block of this work, since the support member 3 is tilted and connected to the base 2 by the fastening bolt 15 in a state of being always in close contact with the base 2, foreign matter or the like enters the mating surface 5. Therefore, the supporting member 3 can be uniformly supported over the entire surface 5 by matching the support member 3 to the base 2, and the clamping force of the work W is not reduced.
Further, since the conical coil spring 11 is used to maintain the close contact state between the support member 3 and the base 2, the force for supporting the support member 3 can be concentrated at the substantial center of the support member 3.

図１は、本発明の実施の形態に係るワークの支持ブロックを採用して、ワークを作業テーブルにクランプする状態を示した模式図である。FIG. 1 is a schematic view showing a state in which a workpiece support block according to an embodiment of the present invention is employed and the workpiece is clamped to a work table. 図２は、本支持ブロックの斜視図で、（ａ）は、支持部材を基台に連結させる前、（ｂ）は、支持部材を基台に連結した後の状態を示したものである。2A and 2B are perspective views of the support block. FIG. 2A shows a state before the support member is connected to the base, and FIG. 2B shows a state after the support member is connected to the base. 図３は、本支持ブロックの断面図で、（ａ）は、ワークが支持ブロックに載置される前、（ｂ）は、ワークが支持ブロックに載置された後の状態を示したものである。3A and 3B are cross-sectional views of the support block, wherein FIG. 3A shows a state before the work is placed on the support block, and FIG. 3B shows a state after the work is placed on the support block. is there. 図４は、従来のワークの支持ブロックで、支持部材と基台とが分離した際の斜視図である。FIG. 4 is a perspective view of a conventional work support block when the support member and the base are separated. 図５は、従来のワークの支持ブロック上にワークが載置された状態を示す図である。FIG. 5 is a diagram showing a state where a workpiece is placed on a support block of a conventional workpiece.

符号の説明Explanation of symbols

２ 基台，３ 支持部材，４ 押圧機構，５ 合わせ面，１０ 上壁部，１１ 円錐状コイルバネ，１１ａ 大径端部，１１ｂ 小径端部，１２ コイルバネ収容孔，１５ 締結ボルト，１６ 貫通孔，１７ ねじ孔，１８ 段差部，Ｗ ワーク，Ｗ１ 上面，Ｗ２ 下面
2 base, 3 support member, 4 pressing mechanism, 5 mating surface, 10 upper wall, 11 conical coil spring, 11a large diameter end, 11b small diameter end, 12 coil spring accommodating hole, 15 fastening bolt, 16 through hole, 17 Screw holes, 18 steps, W workpiece, W1 upper surface, W2 lower surface

Claims (4)

ワークを支持する支持部材を基台に傾動自在に載置したワークの支持ブロックであって、
前記支持部材と前記基台とを円錐状コイルバネ内に挿通した締結ボルトにより連結することを特徴とするワークの支持ブロック。 A work support block in which a support member for supporting a work is tiltably mounted on a base,
A support block for a workpiece, wherein the support member and the base are connected by a fastening bolt inserted into a conical coil spring. 前記基台は、前記締結ボルトが挿通する貫通孔と、該貫通孔と段差部を介して連通されるコイルバネ収容孔とを備え、前記貫通孔は前記コイルバネ収容孔よりも小径に形成されることを特徴とする請求項１に記載のワークの支持ブロック。   The base includes a through hole through which the fastening bolt is inserted, and a coil spring accommodation hole communicated with the through hole through a stepped portion, and the through hole is formed with a smaller diameter than the coil spring accommodation hole. The workpiece support block according to claim 1. 前記円錐状コイルバネの大径端部が、前記基台の前記段差部に当接されることを特徴とする請求項２に記載のワークの支持ブロック。   The work support block according to claim 2, wherein a large-diameter end portion of the conical coil spring is brought into contact with the step portion of the base. 前記支持部材は前記基体との合わせ面にて密着された状態で傾動自在であり、その傾動範囲は、水平面に対する傾斜角度が略３°までの範囲であることを特徴とする請求項１〜３のいずれかに記載のワークの支持ブロック。
The support member is tiltable in a state of being in close contact with a mating surface with the base body, and a tilt range of the support member is a range up to approximately 3 ° with respect to a horizontal plane. The work support block according to any one of the above.
JP2007077181A 2007-03-23 2007-03-23 Work supporting block Pending JP2008229827A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010188446A (en) * 2009-02-16 2010-09-02 Bridgestone Corp Workpiece holding method and workpiece processing method
KR101049606B1 (en) * 2009-02-27 2011-07-14 두산엔진주식회사 Right Angle Compensation Block for Frame Box of Large Low Speed Engine
KR101292194B1 (en) 2011-12-05 2013-08-01 (주)세다 Elevating apparatus
KR101858891B1 (en) * 2017-01-17 2018-06-28 두산중공업 주식회사 Dovetail processing jig
CN109128911A (en) * 2018-10-09 2019-01-04 莱芜环球汽车零部件有限公司 A kind of self-positioning clamping device of workpiece
CN109262384A (en) * 2018-11-20 2019-01-25 洛阳Lyc轴承有限公司 A kind of seamless floated bearing mechanism of two-stage Self-aligning
CN114619382A (en) * 2021-10-26 2022-06-14 杭州联德精密机械股份有限公司 Split type location frock of oil pan

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010188446A (en) * 2009-02-16 2010-09-02 Bridgestone Corp Workpiece holding method and workpiece processing method
KR101049606B1 (en) * 2009-02-27 2011-07-14 두산엔진주식회사 Right Angle Compensation Block for Frame Box of Large Low Speed Engine
KR101292194B1 (en) 2011-12-05 2013-08-01 (주)세다 Elevating apparatus
KR101858891B1 (en) * 2017-01-17 2018-06-28 두산중공업 주식회사 Dovetail processing jig
CN109128911A (en) * 2018-10-09 2019-01-04 莱芜环球汽车零部件有限公司 A kind of self-positioning clamping device of workpiece
CN109262384A (en) * 2018-11-20 2019-01-25 洛阳Lyc轴承有限公司 A kind of seamless floated bearing mechanism of two-stage Self-aligning
CN109262384B (en) * 2018-11-20 2024-05-03 洛阳轴承集团股份有限公司 Two-stage self-aligning traceless floating supporting mechanism
CN114619382A (en) * 2021-10-26 2022-06-14 杭州联德精密机械股份有限公司 Split type location frock of oil pan
CN114619382B (en) * 2021-10-26 2023-10-20 杭州联德精密机械股份有限公司 Split type location frock of oil pan

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