JP2005193350A - Fixing structure of surface plate and tool - Google Patents

Fixing structure of surface plate and tool Download PDF

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JP2005193350A
JP2005193350A JP2004003936A JP2004003936A JP2005193350A JP 2005193350 A JP2005193350 A JP 2005193350A JP 2004003936 A JP2004003936 A JP 2004003936A JP 2004003936 A JP2004003936 A JP 2004003936A JP 2005193350 A JP2005193350 A JP 2005193350A
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jig
surface plate
bolt
plate
fitting
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Yoshiteru Sayama
良照 佐山
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Nakanishi Metal Works Co Ltd
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Nakanishi Metal Works Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixing structure of a surface plate and a tool capable of strongly fixing the surface plate and the tool and easily assembling and disassembling the surface plate and the tool. <P>SOLUTION: In this structure, the flat surface plate 1 constituted by forming a tool fitting hole 1a at a prescribed position and the flat tool 2 erected on the surface plate 1 and constituted by forming a fitting projecting part 2a to be fitted into the tool fitting hole 1a are fixed. At a substantial center of the horizontal direction along plane of the flat plate of the tool 2 of the fitting projecting part 2a, a cut-out 3 extended in a direction orthogonal to plane of the flat plate of the surface plate 1 is formed to pass a shaft part 8b of a bolt 8, and an engagement hole 4 connected to the cut-out 3 on an upper side of the cut-out 3 and engaged with a nut 7 from a direction orthogonal to plane of the flat plate of the tool 2 is formed. By screwing the bolt 8 into the nut 7 disposed in the engagement hole 4 from a lower side of the surface plate 1, the surface plate 1 and the tool 2 are fixed. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、機械部品の組立又は検査作業等に用いる治具を定盤に固定する構造に関するものである。   The present invention relates to a structure for fixing a jig used for assembling or inspecting machine parts to a surface plate.

例えばコンベア部品等の比較的大形かつ大重量の機械部品の組立作業に用いる治具を定盤に固定する構造（位置決め構造）として、鋼板の切断加工によって所定形状に形成された平板状の定盤の所定位置に治具嵌合孔を形成すると共に、前記定盤上に立設する治具に前記治具嵌合孔に嵌合する嵌合凸部を形成し、該嵌合凸部を前記治具嵌合孔に嵌合することにより前記定盤と前記治具とを位置決めし、前記治具の前記定盤平面内における該定盤に対する相対移動を抑制してなるものがある（例えば、特許文献１参照。）。また、前記定盤と前記治具とを溶接により接合して固定するものもある。さらに、鋳造により定盤を形成して、該定盤と治具とを溶接により固定するものもある。   For example, as a structure (positioning structure) for fixing a jig used for assembling relatively large and heavy machine parts such as conveyor parts to a surface plate (positioning structure), a flat plate-shaped plate formed by cutting a steel plate. A jig fitting hole is formed at a predetermined position of the board, and a fitting convex part to be fitted into the jig fitting hole is formed on a jig standing on the surface plate, and the fitting convex part is There are those formed by positioning the surface plate and the jig by fitting into the jig fitting hole, and suppressing relative movement of the jig with respect to the surface plate in the surface plate plane (for example, , See Patent Document 1). In addition, there are some which join and fix the surface plate and the jig by welding. Further, there is a type in which a surface plate is formed by casting and the surface plate and the jig are fixed by welding.

特開平７−１６４３５６号公報（図１−３）JP-A-7-164356 (FIGS. 1-3)

特許文献１における定盤と治具の固定構造（位置決め構造）は、組立及び分解が容易であるという長所がある反面、特に比較的大形かつ大重量の機械部品の組立又は検査作業等に用いられる場合において、前記定盤の治具嵌合孔に前記治具の嵌合凸部を嵌合させるのみであるため、前記定盤に対する前記治具の位置決め精度の向上及び前記定盤と前記治具との固定強度の向上を図ることができないこと等の問題点がある。例えば、比較的大形かつ大重量の機械部品の組立作業として溶接を行う場合には、該溶接による機械部品のひずみにより生ずる作用力が該機械部品を支持する治具に作用するため、前記作用力の大きさ及び方向によっては、前記治具の嵌合凸部と前記定盤の治具嵌合孔との嵌合が外れる場合又は前記治具が前記定盤から浮き上がる場合がある。また、前記定盤と前記治具とを溶接により接合して固定してなるものは、組立及び分解が容易ではなく治具交換等の自由度がないこと、熱ひずみが生じるため前記定盤に対する前記治具の位置決め精度の向上を図ることができないこと、並びに、熟練者による溶接作業が必要であることから製造コストが上昇すること等の問題点がある。さらに、鋳造により定盤を形成する場合には、鋳鉄はアーク溶接できないため定盤の材料として鋳鋼を用いる必要があることから、さらに製造コストが上昇するという問題点がある。   The fixing structure (positioning structure) between the surface plate and the jig in Patent Document 1 has the advantage of being easy to assemble and disassemble, but is used particularly for the assembly or inspection of relatively large and heavy machine parts. In this case, since only the fitting convex portion of the jig is fitted into the jig fitting hole of the surface plate, the positioning accuracy of the jig with respect to the surface plate is improved and the surface plate and the jig are fixed. There are problems such as inability to improve the fixing strength with the tool. For example, when welding is performed as an assembly operation of a relatively large and heavy machine part, the acting force generated by the distortion of the machine part due to the welding acts on a jig that supports the machine part. Depending on the magnitude and direction of the force, the fitting projection of the jig and the jig fitting hole of the surface plate may be disengaged or the jig may be lifted from the surface plate. Also, what is fixed by joining the surface plate and the jig by welding is not easy to assemble and disassemble, there is no freedom of jig replacement, etc. There are problems such as an inability to improve the positioning accuracy of the jig and an increase in manufacturing cost because a welding operation by a skilled worker is necessary. Furthermore, when forming a surface plate by casting, since cast iron cannot be arc-welded, it is necessary to use cast steel as a material for the surface plate, which further increases the manufacturing cost.

本発明は、前記のような問題点を解決するためになされたものであり、定盤と治具とを強固に固定できると共に組立及び分解が容易な定盤と治具の固定構造を得ることを目的とする。また、前記定盤に対する前記治具の位置決め精度を向上することができると共にコストの上昇を抑えることができる定盤と治具の固定構造を得ることを目的とする。   The present invention has been made to solve the above-described problems, and provides a structure for fixing a surface plate and a jig that can firmly fix the surface plate and the jig and is easy to assemble and disassemble. With the goal. It is another object of the present invention to obtain a fixing structure of a surface plate and a jig that can improve the positioning accuracy of the jig with respect to the surface plate and suppress an increase in cost.

本発明に係る定盤と治具の固定構造は、前記課題解決のために、所定位置に治具嵌合孔を形成してなる平板状の定盤と、該定盤上に立設される、前記治具嵌合孔に嵌合する嵌合凸部を形成してなる平板状の治具の固定構造であって、前記嵌合凸部の、前記治具の平板の平面に沿う水平方向の略中央に、前記定盤の平板の平面と直交する方向に延びた、ボルトの軸部が通る切り欠きを形成すると共に、該切り欠きの上側で前記切り欠きに繋がる、ナットが前記治具の平板の平面に直交する方向から係合する係合孔を形成し、該係合孔内に配設したナットに前記定盤の下側からボルトを螺合することにより前記定盤と前記治具とを固定してなるものである。   In order to solve the above-described problem, the surface plate and jig fixing structure according to the present invention are provided on a platen surface plate in which a jig fitting hole is formed at a predetermined position, and is erected on the surface plate. , A flat plate-shaped jig fixing structure formed with a fitting projection that fits into the jig fitting hole, the horizontal direction of the fitting projection along the plane of the plate of the jig A notch extending in a direction perpendicular to the plane of the flat plate of the surface plate and passing through the shaft portion of the bolt is formed substantially at the center of the platen, and a nut connected to the notch on the upper side of the notch. An engagement hole that engages in a direction perpendicular to the plane of the flat plate is formed, and a bolt is screwed into the nut disposed in the engagement hole from the lower side of the surface plate to thereby fix the surface plate and the jig. The tool is fixed.

また、本発明に係る定盤と治具の固定構造は、前記課題解決のために、所定位置に治具嵌合孔を形成してなる平板状の定盤と、該定盤上に立設される、前記治具嵌合孔に嵌合する嵌合凸部を形成してなる平板状の治具の固定構造であって、前記嵌合凸部の、前記治具の平板の平面に沿う水平方向の略中央に、前記定盤の平板の平面と直交する方向に延びた、ボルトの軸部が通る切り欠きを形成すると共に、該切り欠きの上側で前記切り欠きに繋がる、ボルトの頭部が前記治具の平板の平面に直交する方向から係合する係合孔を形成し、該係合孔内から前記定盤方向に垂下してなるボルトに前記定盤の下側からナットを螺合することにより前記定盤と前記治具とを固定してなるものである。   In addition, the surface plate and jig fixing structure according to the present invention includes a flat plate surface plate formed with a jig fitting hole at a predetermined position, and a standing structure on the surface plate. A fixing structure of a flat plate-like jig formed by forming a fitting convex portion to be fitted into the jig fitting hole, the flat surface of the jig flat plate of the fitting convex portion A bolt head that extends in a direction perpendicular to the plane of the flat plate of the surface plate at a substantially horizontal center and that passes through the shaft of the bolt and is connected to the notch above the notch. An engagement hole that engages in a direction perpendicular to the plane of the flat plate of the jig is formed, and a nut that is suspended from the engagement hole in the direction of the surface plate is provided with a nut from the lower side of the surface plate. The surface plate and the jig are fixed by screwing.

ここで、前記治具の係合孔に係合するナット又はボルトを六角ナット又は六角ボルトとすると共に、前記係合孔の、前記治具の平板の平面に沿う水平方向長さを、前記六角ナット又は六角ボルトの頭部の平行側面間の距離よりも大きく、かつ、前記六角ナット又は六角ボルトが回転しない長さとしてなると好ましい。   Here, the nut or bolt engaged with the engagement hole of the jig is a hexagon nut or hexagon bolt, and the horizontal length of the engagement hole along the plane of the flat plate of the jig is the hexagon. It is preferable that the distance is greater than the distance between the parallel side surfaces of the heads of the nuts or hex bolts and the hex nuts or hex bolts do not rotate.

本発明に係る定盤と治具の固定構造によれば、所定位置に治具嵌合孔を形成してなる平板状の定盤と、該定盤上に立設される、前記治具嵌合孔に嵌合する嵌合凸部を形成してなる平板状の治具の固定構造であって、前記嵌合凸部の、前記治具の平板の平面に沿う水平方向の略中央に、前記定盤の平板の平面と直交する方向に延びた、ボルトの軸部が通る切り欠きを形成すると共に、該切り欠きの上側で前記切り欠きに繋がる、ナットが前記治具の平板の平面に直交する方向から係合する係合孔を形成し、該係合孔内に配設したナットに前記定盤の下側からボルトを螺合することにより前記定盤と前記治具とを固定してなるので、組立及び分解が容易であるため治具交換等の自由度を高くすることができる。また、前記定盤の治具嵌合孔に前記治具の嵌合凸部を嵌合させるのみの構成と比較して、前記定盤と前記治具とを強固に固定することができる。さらに、前記定盤の治具嵌合孔に前記治具の嵌合凸部を嵌合させるのみの構成と比較して前記定盤と前記治具との固定が強固になるため、前記治具が支持する機械部品のひずみによる作用力、偏荷重による倒れモーメント又は振動等の外乱によっても、前記治具の前記定盤に対する相対位置が変動しないため、前記定盤に対する前記治具の位置決め精度の向上を図ることができる。さらにまた、前記定盤と前記治具とを溶接により固定する構成と比較して熱ひずみが生じないため、前記定盤に対する前記治具の位置決め精度の向上を図ることができる。また、前記定盤及び治具は平板状であるため、例えば鋼板をレーザー切断することにより、前記治具嵌合孔、嵌合凸部、切り欠き及び係合孔を、外形加工と併せて加工することができること、並びに、ねじ加工が不要な構成であるため、加工コストの上昇を抑制することができる。   According to the fixing structure of the surface plate and the jig according to the present invention, a plate-shaped surface plate formed with a jig fitting hole at a predetermined position, and the jig fitting standing on the surface plate. It is a fixing structure of a flat plate-shaped jig formed by forming a fitting convex portion that fits into the fitting hole, and the fitting convex portion has a substantially horizontal center along the plane of the flat plate of the jig, A notch that extends in a direction perpendicular to the plane of the flat plate of the surface plate and that passes through the shaft portion of the bolt is formed, and a nut connected to the notch on the upper side of the notch is formed on the plane of the flat plate of the jig. The surface plate and the jig are fixed by forming an engagement hole that engages from the orthogonal direction and screwing a bolt from the lower side of the surface plate to a nut disposed in the engagement hole. Therefore, since assembly and disassembly are easy, it is possible to increase the degree of freedom such as jig replacement. In addition, the surface plate and the jig can be firmly fixed as compared with the configuration in which the fitting convex portion of the jig is only fitted into the jig fitting hole of the surface plate. Furthermore, since the fixing between the surface plate and the jig becomes stronger as compared with the configuration in which the fitting convex portion of the jig is only fitted into the jig fitting hole of the surface plate, the jig The relative position of the jig with respect to the surface plate does not fluctuate even by disturbances such as acting force due to strain of mechanical parts supported by the machine parts, tilting moment due to unbalanced load or vibration. Improvements can be made. Furthermore, since thermal distortion does not occur as compared with a configuration in which the surface plate and the jig are fixed by welding, the positioning accuracy of the jig with respect to the surface plate can be improved. In addition, since the surface plate and the jig are flat, the jig fitting hole, the fitting convex portion, the notch and the engagement hole are processed together with the outer shape processing by laser cutting a steel plate, for example. Since it is a structure which does not need to be able to do and screw processing, the raise of processing cost can be suppressed.

また、本発明に係る定盤と治具の固定構造によれば、所定位置に治具嵌合孔を形成してなる平板状の定盤と、該定盤上に立設される、前記治具嵌合孔に嵌合する嵌合凸部を形成してなる平板状の治具の固定構造であって、前記嵌合凸部の、前記治具の平板の平面に沿う水平方向の略中央に、前記定盤の平板の平面と直交する方向に延びた、ボルトの軸部が通る切り欠きを形成すると共に、該切り欠きの上側で前記切り欠きに繋がる、ボルトの頭部が前記治具の平板の平面に直交する方向から係合する係合孔を形成し、該係合孔内から前記定盤方向に垂下してなるボルトに前記定盤の下側からナットを螺合することにより前記定盤と前記治具とを固定してなるので、組立及び分解が容易であるため治具交換等の自由度を高くすることができる。また、前記定盤の治具嵌合孔に前記治具の嵌合凸部を嵌合させるのみの構成と比較して、前記定盤と前記治具とを強固に固定することができる。さらに、前記定盤の治具嵌合孔に前記治具の嵌合凸部を嵌合させるのみの構成と比較して前記定盤と前記治具との固定が強固になるため、前記治具が支持する機械部品のひずみによる作用力、偏荷重による倒れモーメント又は振動等の外乱によっても、前記治具の前記定盤に対する相対位置が変動しないため、前記定盤に対する前記治具の位置決め精度の向上を図ることができる。さらにまた、前記定盤と前記治具とを溶接により固定する構成と比較して熱ひずみが生じないため、前記定盤に対する前記治具の位置決め精度の向上を図ることができる。また、前記定盤及び治具は平板状であるため、例えば鋼板をレーザー切断することにより、前記治具嵌合孔、嵌合凸部、切り欠き及び係合孔を、外形加工と併せて加工することができること、並びに、ねじ加工が不要な構成であるため、加工コストの上昇を抑制することができる。   In addition, according to the fixing structure of the surface plate and the jig according to the present invention, the plate-shaped surface plate formed with the jig fitting hole at a predetermined position, and the jig that is erected on the surface plate. A flat jig fixing structure formed with a fitting convex part that fits into the fitting hole, wherein the fitting convex part is substantially in the horizontal direction along the plane of the flat plate of the jig. A notch extending in a direction orthogonal to the plane of the flat plate of the surface plate and passing through the shaft portion of the bolt, and a bolt head connected to the notch above the notch is the jig. An engagement hole that engages in a direction perpendicular to the plane of the flat plate is formed, and a nut is screwed onto the bolt that hangs down from the engagement hole in the direction of the surface plate from below the surface plate. Since the surface plate and the jig are fixed, it is easy to assemble and disassemble, so that the degree of freedom such as jig replacement can be increased. In addition, the surface plate and the jig can be firmly fixed as compared with the configuration in which the fitting convex portion of the jig is only fitted into the jig fitting hole of the surface plate. Furthermore, since the fixing between the surface plate and the jig becomes stronger as compared with the configuration in which the fitting convex portion of the jig is only fitted into the jig fitting hole of the surface plate, the jig The relative position of the jig with respect to the surface plate does not fluctuate even by disturbances such as acting force due to strain of mechanical parts supported by the machine parts, tilting moment due to unbalanced load or vibration. Improvements can be made. Furthermore, since thermal distortion does not occur as compared with a configuration in which the surface plate and the jig are fixed by welding, the positioning accuracy of the jig with respect to the surface plate can be improved. In addition, since the surface plate and the jig are flat, the jig fitting hole, the fitting convex portion, the notch and the engagement hole are processed together with the outer shape processing by laser cutting a steel plate, for example. Since it is a structure which does not need to be able to do and screw processing, the raise of processing cost can be suppressed.

さらに、本発明に係る定盤と治具の固定構造によれば、前記治具の係合孔に係合するナット又はボルトを六角ナット又は六角ボルトとすると共に、前記係合孔の、前記治具の平板の平面に沿う水平方向長さを、前記六角ナット又は六角ボルトの頭部の平行側面間の距離よりも大きく、かつ、前記六角ナット又は六角ボルトが回転しない長さとしたので、前記治具の係合孔に係合するナット又はボルトが回転しないため、前記定盤の下側のボルト又はナットの締め付け又は取り外しにより、前記定盤及び治具の組立又は分解をより容易に行うことができる。   Furthermore, according to the fixing structure of the surface plate and the jig according to the present invention, the nut or bolt that engages with the engagement hole of the jig is a hexagon nut or hexagon bolt, and the jig of the engagement hole The horizontal length along the plane of the flat plate of the tool is greater than the distance between the parallel side surfaces of the hex nut or hex bolt head, and the hex nut or hex bolt does not rotate. Since the nut or bolt that engages with the engagement hole of the tool does not rotate, the surface plate and jig can be more easily assembled or disassembled by tightening or removing the bolt or nut on the lower side of the surface plate. it can.

本発明に係る定盤と治具の固定構造は、該治具が支持する機械部品により適用する用途が限定されるものではないが、定盤と治具とを強固に固定できると共に組立及び分解が容易であること等の特徴から、例えば、パワーチェーン、フリクションローラ、ローラチェーン等の駆動装置によって駆動され、自動車等の被搬送物の搬送を行うコンベア装置等の比較的大形かつ大重量の機械部品の組立作業等を行う場合に用いられるのに適している。また、本発明に係る定盤と治具の固定構造は、特に、前記コンベア装置等の比較的大形かつ大重量の機械部品を用いた製造ラインを実際に構築する場所で前記組立作業等を行う際に用いられるのに適している。   The fixing structure of the surface plate and the jig according to the present invention is not limited to the application applied by the mechanical parts supported by the jig, but the surface plate and the jig can be firmly fixed and assembled and disassembled. For example, it is driven by a drive device such as a power chain, a friction roller, or a roller chain, and is relatively large and heavy, such as a conveyor device that conveys a transported object such as an automobile. It is suitable for use in assembly work of machine parts. In addition, the fixing structure of the surface plate and the jig according to the present invention is particularly suitable for the assembly work etc. in a place where a production line using relatively large and heavy machine parts such as the conveyor device is actually constructed. Suitable for use when doing.

次に本発明の実施の形態を添付図面に基づき詳細に説明するが、本発明は、添付図面に示された形態に限定されず特許請求の範囲に記載の要件を満たす実施形態の全てを含むものである。図１及び図２は、本発明の実施の形態に係る定盤と治具の固定構造を示す説明図であり、図１は定盤と治具の組立方法を示す斜視図、図２（ａ）は組立状態の断面図、図２（ｂ）は組立状態の底面図である。   Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste. 1 and 2 are explanatory views showing a fixing structure of a surface plate and a jig according to an embodiment of the present invention. FIG. 1 is a perspective view showing an assembly method of the surface plate and the jig, and FIG. ) Is a sectional view of the assembled state, and FIG. 2B is a bottom view of the assembled state.

例えばコンベア部品等の比較的大形かつ大重量の機械部品の組立又は検査作業等に用いられる定盤１と治具２は平板状に形成されており、定盤１の所定位置には治具嵌合孔１ａが、治具２には治具嵌合孔１ａに嵌合する嵌合凸部２ａが形成されている。なお、図１及び図２には治具嵌合孔１ａを一箇所のみ示しているが、組立作業等の作業内容に対応して、定盤１の所定位置に多数の治具嵌合孔１ａ，１ａ，・・・形成されているものである。治具２は、前記比較的大形かつ大重量の機械部品を支持するものであり、定盤１の治具嵌合孔１ａに治具２の嵌合凸部２ａを嵌合させることにより、治具２は定盤１上に立設される。   For example, the surface plate 1 and the jig 2 used for assembling or inspecting relatively large and heavy machine parts such as conveyor parts are formed in a flat plate shape. The fitting hole 1a is formed on the jig 2, and a fitting convex part 2a is formed in the jig fitting hole 1a. 1 and 2 show only one jig fitting hole 1a. However, a large number of jig fitting holes 1a are provided at predetermined positions on the surface plate 1 in accordance with work contents such as assembly work. , 1a,... Are formed. The jig 2 supports the relatively large and heavy machine parts, and by fitting the fitting projection 2a of the jig 2 into the jig fitting hole 1a of the surface plate 1, The jig 2 is erected on the surface plate 1.

嵌合凸部２ａの、治具２の平板の平面に沿う水平方向の略中央には、定盤１の平板の平面と直交する方向に延びた、ボルト８の軸部８ｂが通る切り欠き３が形成されていると共に、該切り欠きの上側（治具２の下端面から奥側）には、前記切り欠き３に繋がる、ナット７が治具２の平板の平面に直交する方向から係合する係合孔４が形成されている。係合孔４に係合したナット７は、その底面が係合孔４と切り欠き３との連結により形成された係止部５，５に当接して下方への移動が規制される。治具２の嵌合凸部２ａは、治具２の平板の平面に沿う水平方向の略中央に形成された切り欠き３により分断され、一対の突起部６，６が形成されている。   A notch 3 extending in a direction perpendicular to the plane of the flat plate of the surface plate 1 and passing through the shaft portion 8b of the bolt 8 at the substantially horizontal center of the fitting convex portion 2a along the plane of the flat plate of the jig 2. Is formed, and the nut 7 connected to the notch 3 is engaged with the upper side of the notch (from the lower end surface of the jig 2 to the back side) from the direction perpendicular to the plane of the flat plate of the jig 2. An engaging hole 4 is formed. The bottom surface of the nut 7 engaged with the engagement hole 4 is brought into contact with the locking portions 5 and 5 formed by the connection between the engagement hole 4 and the notch 3, and the downward movement is restricted. The fitting projection 2a of the jig 2 is divided by a notch 3 formed at a substantially horizontal center along the plane of the flat plate of the jig 2, and a pair of protrusions 6 and 6 are formed.

ワッシャ９及びスプリングワッシャ１０を介して定盤１の下側から、ボルト８を治具２の係合孔４内に配設したナット７に螺合することにより、定盤１と治具２とが固定されて組立を容易に行うことができる。なお、前記のとおり、治具２の嵌合凸部２ａは、切り欠き３により分断されているため、前記ボルト８の締め付けにより前記一対の突起部６，６が弾性変形して治具２の平板の平面に沿う水平方向に広がることになる（図１の矢印Ｄ参照。）。したがって、定盤１の治具嵌合孔１ａと治具２の嵌合凸部２ａとの嵌合部の摩擦力が大きくなるため、定盤１と治具２とは、ボルト８とナット７との締結によって、より強固に固定される。また、ボルト８を緩めてナット７から取り外すことにより、定盤１と治具２との分解を容易に行うことができる。   By screwing the bolt 8 into the nut 7 disposed in the engagement hole 4 of the jig 2 from the lower side of the surface plate 1 through the washer 9 and the spring washer 10, Can be easily assembled. As described above, the fitting protrusion 2a of the jig 2 is divided by the notch 3, so that the pair of protrusions 6 and 6 are elastically deformed by tightening the bolt 8, and the jig 2 It spreads in the horizontal direction along the plane of the flat plate (see arrow D in FIG. 1). Therefore, since the frictional force of the fitting portion between the jig fitting hole 1a of the surface plate 1 and the fitting convex portion 2a of the jig 2 is increased, the surface plate 1 and the jig 2 are composed of the bolt 8 and the nut 7. By fastening with, it is fixed more firmly. Moreover, the surface plate 1 and the jig | tool 2 can be disassembled easily by loosening the volt | bolt 8 and removing from the nut 7. FIG.

ここで、平板状の治具２の嵌合凸部２ａに切り欠き３及び係合孔４を形成せずに、嵌合凸部２ａの下面に雌ねじ部を形成して定盤１の下側からボルトを前記雌ねじ部に螺合する構成も考えられる。しかし、該構成では、治具２が平板状（例えば厚さ１０ｍｍ程度の鋼板）であるため、使用できるボルトの径が限定され、特に比較的大形かつ大重量の機械部品を支持する治具２を定盤１に固定するために必要な締結強度を確保できるボルトを選定することができない。また、このような押えボルトの構成では組立及び分解の繰り返しにより治具２の前記雌ねじ部が損傷しやすい。したがって、前記のような平板状の治具２の嵌合凸部２ａの下面に雌ねじ部を形成して定盤１の下側からボルトを前記雌ねじ部に螺合する構成は採用することができない。   Here, the notch 3 and the engagement hole 4 are not formed in the fitting convex portion 2a of the flat jig 2, and a female screw portion is formed on the lower surface of the fitting convex portion 2a to lower the surface plate 1. A configuration is also conceivable in which a bolt is screwed into the female screw portion. However, in this configuration, since the jig 2 has a flat plate shape (for example, a steel plate having a thickness of about 10 mm), the diameter of bolts that can be used is limited, and in particular, a jig that supports relatively large and heavy machine parts. It is not possible to select a bolt that can secure the fastening strength necessary for fixing 2 to the surface plate 1. Further, in such a structure of the presser bolt, the female thread portion of the jig 2 is easily damaged by repeated assembly and disassembly. Therefore, a configuration in which a female screw portion is formed on the lower surface of the fitting convex portion 2a of the flat jig 2 as described above and a bolt is screwed into the female screw portion from the lower side of the surface plate 1 cannot be adopted. .

図１及び図２において、治具２の係合孔４に係合するナット７は六角ナットであり、係合孔４の、治具２の平板の平面に沿う水平方向長さＡは、六角ナット７の平行側面間の距離Ｂよりも大きく、かつ、六角ナット７が回転しない長さに形成されている。したがって、治具２の係合孔４に係合するナット７が回転しないため、定盤１の下側のボルト８の締め付け又は取り外しにより、定盤１及び治具２の組立又は分解をより容易に行うことができる。例えば、前記係合孔４の水平方向長さＡは、六角ナット７の締め付け又は取り外しに通常用いられるスパナの二面幅と同程度の寸法とすればよい。   1 and 2, the nut 7 that engages with the engagement hole 4 of the jig 2 is a hexagon nut, and the horizontal length A of the engagement hole 4 along the plane of the flat plate of the jig 2 is hexagon. The length is larger than the distance B between the parallel side surfaces of the nut 7 and the hex nut 7 does not rotate. Therefore, since the nut 7 that engages with the engagement hole 4 of the jig 2 does not rotate, it is easier to assemble or disassemble the surface plate 1 and the jig 2 by tightening or removing the bolt 8 on the lower side of the surface plate 1. Can be done. For example, the horizontal length A of the engagement hole 4 may be the same size as the two-sided width of a spanner normally used for tightening or removing the hexagon nut 7.

以上のような簡素な構成により、定盤１と治具２との組立及び分解が容易であるため治具交換等の自由度を高くすることができる。また、定盤１の治具嵌合孔１ａに治具２の嵌合凸部２ａを嵌合させるのみの構成と比較して、定盤１と治具２とを強固に固定することができる。さらに、定盤１の治具嵌合孔１ａに治具２の嵌合凸部２ａを嵌合させるのみの構成と比較して、定盤１と治具２との固定が強固になるため、前記治具が支持する比較的大形かつ大重量の機械部品のひずみによる作用力、偏荷重による倒れモーメント又は振動等の外乱によっても、前記機械部品を支持する治具２の定盤１に対する相対位置が変動しないため、定盤１に対する治具２の位置決め精度の向上を図ることができる。例えば、定盤１と治具２との強固な固定により、前記機械部品の組立作業として溶接を行う場合における該機械部品のひずみによる作用力が治具２に作用して治具２の嵌合凸部２ａと定盤１の治具嵌合孔１ａとの嵌合が外れる現象及び治具２が定盤１から浮き上がる現象を回避することができる。さらにまた、定盤１と治具２とを溶接する構成と比較して、熱ひずみが生じないため、前記定盤に対する前記治具の位置決め精度の向上を図ることができる。   With the simple configuration as described above, assembly and disassembly of the surface plate 1 and the jig 2 are easy, so that the degree of freedom for jig replacement and the like can be increased. Further, the surface plate 1 and the jig 2 can be firmly fixed as compared with the configuration in which the fitting convex portion 2a of the jig 2 is only fitted into the jig fitting hole 1a of the surface plate 1. . In addition, since the fixing of the surface plate 1 and the jig 2 is stronger than the configuration in which the fitting protrusion 2a of the jig 2 is only fitted into the jig fitting hole 1a of the surface plate 1, Relative to the surface plate 1 of the jig 2 that supports the mechanical component even by disturbances such as an acting force due to strain of a relatively large and heavy mechanical component supported by the jig, a tilting moment due to an unbalanced load, or vibration. Since the position does not change, the positioning accuracy of the jig 2 with respect to the surface plate 1 can be improved. For example, when the surface plate 1 and the jig 2 are firmly fixed, the working force due to the distortion of the mechanical part acts on the jig 2 when welding is performed as an assembly operation of the mechanical part. It is possible to avoid the phenomenon that the fitting between the convex portion 2 a and the jig fitting hole 1 a of the surface plate 1 is disengaged and the phenomenon that the jig 2 is lifted from the surface plate 1. Furthermore, as compared with the configuration in which the surface plate 1 and the jig 2 are welded, thermal distortion does not occur, so that the positioning accuracy of the jig with respect to the surface plate can be improved.

本発明に係る定盤と治具の固定構造の平板状の定盤１及び治具２は、例えば鋼板であり、要求される加工精度及び加工速度等に応じて、レーザー加工機、ワイヤーカット放電加工機又はガス切断機等による切断により形成することができる。また、外形の加工と共に、定盤１の治具嵌合孔１ａ、並びに、治具２の嵌合凸部２ａ、切り欠き３及び係合孔４を併せて切断加工することができるため、加工コストの上昇を抑制することができる。さらに、本発明に係る定盤と治具の固定構造の平板状の定盤１及び治具２は、前記のとおりレーザー切断等により加工するのみであり、ねじ加工が不要な構成であるため、加工コストの上昇を抑制することができる。   The platen surface plate 1 and the jig 2 having a fixed structure of the surface plate and the jig according to the present invention are, for example, steel plates, and depending on required processing accuracy, processing speed, etc., laser processing machines, wire cut discharges. It can be formed by cutting with a processing machine or a gas cutting machine. Moreover, since the jig fitting hole 1a of the surface plate 1 and the fitting convex part 2a, the notch 3 and the engagement hole 4 of the jig 2 can be cut together with the processing of the outer shape, An increase in cost can be suppressed. Furthermore, the platen surface plate 1 and the jig 2 having a fixed structure of the surface plate and the jig according to the present invention are only processed by laser cutting or the like as described above, and are not required to be threaded. An increase in processing cost can be suppressed.

本発明に係る定盤と治具の固定構造は、コンベア部品等の比較的大形かつ大重量の機械部品の組立作業又は検査作業等を、前記機械部品の据え付けを行う現地で行う場合において、定盤１及び治具２が平板状であるため、定盤１及び治具２等の部品を現地へ輸送しやすいこと、輸送された定盤１及び治具２等の部品を現地で容易に組み立てることができること、並びに、現地で必要に応じて治具２を取り外して、現地で製作した治具を容易に取り付けることができること等の特徴を有するものである。したがって、このような現地組立を行う場合の輸送コスト及び組立コストを削減することができる。   The fixing structure of the surface plate and jig according to the present invention, when performing assembly work or inspection work of relatively large and heavy machine parts such as conveyor parts in the field where the machine parts are installed, Since the surface plate 1 and the jig 2 are flat, parts such as the surface plate 1 and the jig 2 can be easily transported to the site, and parts such as the transported surface plate 1 and the jig 2 can be easily transported locally. It has features such that it can be assembled, and the jig 2 can be easily attached by removing the jig 2 as needed. Therefore, it is possible to reduce the transportation cost and the assembly cost when performing such local assembly.

なお、以上の本発明の実施の形態に係る定盤と治具の固定構造において、平板状の定盤１及び治具２には、補強用のリブ等を適宜位置に設けてもよい。また、平板状の定盤１及び治具２には、機械部品の組立作業又は検査作業等に用いる補助部品等を必要に応じて取り付けることもできる。   In the platen and jig fixing structure according to the embodiment of the present invention described above, the platen platen 1 and the jig 2 may be provided with reinforcing ribs or the like at appropriate positions. In addition, auxiliary components used for assembling or inspecting machine parts can be attached to the flat platen 1 and the jig 2 as necessary.

以上の説明においては、治具２の係合孔４にナット７を係合させる場合を示したが、係合孔４にボルト８の頭部８ａを係合させて、係合孔４内から定盤１方向に垂下してなるボルト８に定盤１の下側からナット７を螺合することにより定盤１と治具２とを固定してもよい（例えば、図１及び図２において、ナット７とボルト８を入れ替えた構成に相当する。）。このような構成を採用した場合には、定盤１の治具嵌合孔１ａに治具２の嵌合凸部２ａを嵌合させる前に、ボルト８の頭部８ａを治具２の係合孔４に係合させておき、治具２の切り欠き３内にボルト８の軸部８ｂを垂下させた状態で、定盤１の治具嵌合孔１ａに治具２の嵌合凸部２ａを嵌合させるか、あるいは、治具２の係合孔４の上下寸法を大きく形成して、定盤１の治具嵌合孔１ａに治具２の嵌合凸部２ａを嵌合させた後に前記上下寸法を大きく形成してなる係合孔４からボルト８を挿入すればよい。   In the above description, the case where the nut 7 is engaged with the engagement hole 4 of the jig 2 is shown. However, the head 8 a of the bolt 8 is engaged with the engagement hole 4, and the inside of the engagement hole 4 is engaged. The surface plate 1 and the jig 2 may be fixed by screwing a nut 7 from below the surface plate 1 to a bolt 8 that hangs down in the direction of the surface plate 1 (for example, in FIGS. 1 and 2). This corresponds to a configuration in which the nut 7 and the bolt 8 are replaced.) When such a configuration is adopted, the head 8 a of the bolt 8 is engaged with the jig 2 before the fitting convex portion 2 a of the jig 2 is fitted into the jig fitting hole 1 a of the surface plate 1. In the state where the shaft 8b of the bolt 8 is suspended in the notch 3 of the jig 2 while being engaged with the joint hole 4, the fitting protrusion of the jig 2 is inserted into the jig fitting hole 1a of the surface plate 1. The fitting 2a of the jig 2 is fitted into the jig fitting hole 1a of the surface plate 1 by fitting the part 2a or by forming the engaging hole 4 of the jig 2 with a large vertical dimension. After that, the bolts 8 may be inserted from the engagement holes 4 formed with the large vertical dimension.

このような係合孔４にボルト８の頭部８ａを係合させて、係合孔４内から定盤１方向に垂下してなるボルト８に定盤１の下側からナット７を螺合する構成においても、ボルト８を六角ボルトとして、係合孔４の、治具２の平板の平面に沿う水平方向長さＡを、六角ボルト８の頭部８ａの平行側面間の距離Ｃ（図１及び図２（ｂ）参照）よりも大きく、かつ、六角ボルト８が回転しない長さに形成すれば、定盤１と治具２との組立及び分解が容易となるため、より好ましいものである。例えば、前記係合孔４の水平方向長さＡは、六角ボルト８の締め付け又は取り外しに通常用いられるスパナの二面幅と同程度の寸法とすればよい。   The head 8 a of the bolt 8 is engaged with the engagement hole 4, and the nut 7 is screwed into the bolt 8 that hangs down from the engagement hole 4 toward the surface plate 1 from the lower side of the surface plate 1. Even in the configuration, the bolt 8 is a hexagon bolt, and the horizontal length A of the engagement hole 4 along the plane of the flat plate of the jig 2 is the distance C between the parallel side surfaces of the head 8a of the hexagon bolt 8 (see FIG. 1 and FIG. 2 (b)), and if the hexagon bolt 8 is formed to a length that does not rotate, the assembly and disassembly of the surface plate 1 and the jig 2 are facilitated, which is more preferable. is there. For example, the horizontal length A of the engagement hole 4 may be the same size as the two-sided width of a spanner normally used for tightening or removing the hexagon bolt 8.

本発明の実施の形態に係る定盤と治具の固定構造を示す説明用斜視図である。It is a perspective view for explanation which shows the fixed structure of the surface plate and jig concerning an embodiment of the invention. 本発明の実施の形態に係る定盤と治具の固定構造を示す説明図であり、（ａ）は組立状態の断面図、（ｂ）は組立状態の底面図である。It is explanatory drawing which shows the fixed structure of the surface plate and jig | tool which concerns on embodiment of this invention, (a) is sectional drawing of an assembly state, (b) is a bottom view of an assembly state.

符号の説明Explanation of symbols

１ 定盤
１ａ 治具嵌合孔
２ 治具
２ａ 嵌合凸部
３ 切り欠き
４ 係合孔
５ 係止部
６ 突起部
７ 六角ナット
８ 六角ボルト
８ａ 頭部
８ｂ 軸部
Ａ 係合孔の、治具の平板の平面に沿う水平方向長さ
Ｂ 六角ナットの平行側面間の距離
Ｃ 六角ボルトの頭部の平行側面間の距離
DESCRIPTION OF SYMBOLS 1 Surface plate 1a Jig fitting hole 2 Jig 2a Fitting convex part 3 Notch 4 Engaging hole 5 Locking part 6 Protruding part 7 Hexagon nut 8 Hexagon bolt 8a Head part 8b Shaft part A Horizontal length B along the plane of the plate of the tool B Distance between the parallel sides of the hexagon nut C Distance between the parallel sides of the head of the hexagon bolt

Claims (3)

所定位置に治具嵌合孔を形成してなる平板状の定盤と、該定盤上に立設される、前記治具嵌合孔に嵌合する嵌合凸部を形成してなる平板状の治具の固定構造であって、
前記嵌合凸部の、前記治具の平板の平面に沿う水平方向の略中央に、前記定盤の平板の平面と直交する方向に延びた、ボルトの軸部が通る切り欠きを形成すると共に、該切り欠きの上側で前記切り欠きに繋がる、ナットが前記治具の平板の平面に直交する方向から係合する係合孔を形成し、該係合孔内に配設したナットに前記定盤の下側からボルトを螺合することにより前記定盤と前記治具とを固定してなることを特徴とする定盤と治具の固定構造。 A flat plate that is formed with a jig fitting hole at a predetermined position, and a flat plate that is formed on the surface plate and is formed with a fitting projection that fits into the jig fitting hole. A jig-shaped fixing structure,
A notch that extends in a direction perpendicular to the plane of the flat plate of the surface plate and that passes through the shaft portion of the bolt is formed at a substantially horizontal center of the fitting convex portion along the plane of the flat plate of the jig. An engagement hole is formed on the upper side of the notch and is engaged with the nut from a direction perpendicular to the plane of the flat plate of the jig. A structure for fixing a surface plate and a jig, wherein the surface plate and the jig are fixed by screwing a bolt from the lower side of the plate. 所定位置に治具嵌合孔を形成してなる平板状の定盤と、該定盤上に立設される、前記治具嵌合孔に嵌合する嵌合凸部を形成してなる平板状の治具の固定構造であって、
前記嵌合凸部の、前記治具の平板の平面に沿う水平方向の略中央に、前記定盤の平板の平面と直交する方向に延びた、ボルトの軸部が通る切り欠きを形成すると共に、該切り欠きの上側で前記切り欠きに繋がる、ボルトの頭部が前記治具の平板の平面に直交する方向から係合する係合孔を形成し、該係合孔内から前記定盤方向に垂下してなるボルトに前記定盤の下側からナットを螺合することにより前記定盤と前記治具とを固定してなることを特徴とする定盤と治具の固定構造。 A flat plate that is formed with a jig fitting hole at a predetermined position, and a flat plate that is formed on the surface plate and is formed with a fitting projection that fits into the jig fitting hole. A jig-shaped fixing structure,
A notch that extends in a direction perpendicular to the plane of the flat plate of the surface plate and that passes through the shaft portion of the bolt is formed at a substantially horizontal center of the fitting convex portion along the plane of the flat plate of the jig. The bolt head is connected to the notch on the upper side of the notch, and the head of the bolt is engaged from the direction perpendicular to the plane of the flat plate of the jig, and the surface plate direction is formed from the inside of the engaging hole. A fixing structure for a surface plate and a jig, wherein the surface plate and the jig are fixed by screwing a nut from a lower side of the surface plate to a bolt suspended from the surface. 前記治具の係合孔に係合するナット又はボルトを六角ナット又は六角ボルトとすると共に、前記係合孔の、前記治具の平板の平面に沿う水平方向長さを、前記六角ナット又は六角ボルトの頭部の平行側面間の距離よりも大きく、かつ、前記六角ナット又は六角ボルトが回転しない長さとしてなることを特徴とする請求項１又は２記載の定盤と治具の固定構造。
The nut or bolt that engages with the engagement hole of the jig is a hexagon nut or hexagon bolt, and the horizontal length of the engagement hole along the plane of the flat plate of the jig is the hexagon nut or hexagon. The fixed structure of the surface plate and the jig according to claim 1 or 2, characterized in that the length is larger than a distance between parallel side surfaces of a bolt head and the hex nut or hex bolt does not rotate.
JP2004003936A 2004-01-09 2004-01-09 Fixing structure of surface plate and tool Pending JP2005193350A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7273444B1 (en) * 2022-10-27 2023-05-15 東空販売株式会社 Screw element holding jig

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Publication number Priority date Publication date Assignee Title
JPS556972Y2 (en) * 1976-08-02 1980-02-16
JPS59146604U (en) * 1983-03-18 1984-10-01 萩原　武治 Component connection device
JPS6215606U (en) * 1985-07-11 1987-01-30
JPS63186533U (en) * 1987-05-22 1988-11-30
JPH01138534U (en) * 1988-03-11 1989-09-21
JPH0535535U (en) * 1991-03-16 1993-05-14 川重鉄道車両エンジニアリング株式会社 Suspension device for outfitting and attachment auxiliary member used therefor
JPH0571414U (en) * 1992-03-02 1993-09-28 富士通電装株式会社 Plate material mounting structure
JPH07164356A (en) * 1993-12-08 1995-06-27 Nakanishi Kinzoku Kogyo Kk Surface plate for assembly work

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS556972Y2 (en) * 1976-08-02 1980-02-16
JPS59146604U (en) * 1983-03-18 1984-10-01 萩原　武治 Component connection device
JPS6215606U (en) * 1985-07-11 1987-01-30
JPS63186533U (en) * 1987-05-22 1988-11-30
JPH01138534U (en) * 1988-03-11 1989-09-21
JPH0535535U (en) * 1991-03-16 1993-05-14 川重鉄道車両エンジニアリング株式会社 Suspension device for outfitting and attachment auxiliary member used therefor
JPH0571414U (en) * 1992-03-02 1993-09-28 富士通電装株式会社 Plate material mounting structure
JPH07164356A (en) * 1993-12-08 1995-06-27 Nakanishi Kinzoku Kogyo Kk Surface plate for assembly work

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7273444B1 (en) * 2022-10-27 2023-05-15 東空販売株式会社 Screw element holding jig

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