JP2002202213A - Tightening pressure detection method - Google Patents

Tightening pressure detection method

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Publication number
JP2002202213A
JP2002202213A JP2000400929A JP2000400929A JP2002202213A JP 2002202213 A JP2002202213 A JP 2002202213A JP 2000400929 A JP2000400929 A JP 2000400929A JP 2000400929 A JP2000400929 A JP 2000400929A JP 2002202213 A JP2002202213 A JP 2002202213A
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JP
Japan
Prior art keywords
pressure
sheet
elastic plate
sensitive sheet
tightening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2000400929A
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Japanese (ja)
Inventor
Hiroshi Hamamatsu
Hidekazu Miyagawa
Tadashi Sumimoto
正 住本
秀和 宮河
浜松  弘
Original Assignee
Yaskawa Electric Corp
株式会社安川電機
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Yaskawa Electric Corp, 株式会社安川電機 filed Critical Yaskawa Electric Corp
Priority to JP2000400929A priority Critical patent/JP2002202213A/en
Publication of JP2002202213A publication Critical patent/JP2002202213A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a detection method capable of visually confirming a tightening pressure on the whole when mounting equipment is mounted on an installation face. SOLUTION: A pressure detection sheet 1 in which a pressure sensitive sheet 2 changing its color (or developing a color) by a pressure is integrally provided on an elastic plate 3 is provided. This pressure detection sheet 1 is inserted between the mounting equipment 4 and the installation face so as to stick out from an outer peripheral fringe of the mounting equipment 4 and is mounted by tightening a bolt 6. The pressure sensitive sheet 2 in a part where the mounting equipment 4 is in contact with a mounting face changes its color by tightening the bolt 6, and the elastic plate 3 is compressed. The elastic plate 3 in a sticking-out part 7 swells and is deformed by the compression of the elastic plate 3, an outer peripheral part of the mounting equipment 4 of the pressure sensitive sheet 2 is discolored by the stress, and the discolored part 8 is confirmed visually or by an optical sensor to detect pressures of the mounting equipment and the installation face.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、取付機器とくにモータやロボット等の小形の機器を取り付ける場合の締め付け圧力を検出する締め付け圧力検出方法に関する。 The present invention relates to relates to clamping pressure detecting method for detecting a clamping pressure when mounting equipment especially attaching a small device such as a motor or a robot.

【0002】 [0002]

【従来の技術】従来、ねじの締め付け圧などを検出するため、トルクレンチを使用したり、目視により確認するものとして、圧力を受けることによって変色あるいは発色するプレスケール(商品名)などの感圧シートが用いられている。 Conventionally, in order to detect a tightening pressure of the screw, sensitive pressure or using a torque wrench, as confirmed by visual observation, Prescale (trade name) that changes color or color by receiving pressure etc. the seat is used. また、特開平10−274225号には、 Further, Japanese Unexamined Patent Publication No. 10-274225,
図5に示すように、2枚の平座金11、12の間に表示部13たとえば着色されたシリコンゴムなどの軟質材を介在させ、この座金をボルト14と被締付締体15の間に挿入し、ボルト14の締め付けにより表示部13が座金からはみ出し、はみ出し部分16を形成させるようにした締め付け表示体が提案されている。 As shown in FIG. 5, the soft material such as a display unit 13 for example colored silicone rubber between the two flat washers 11, 12 interposed therebetween, the washer between the bolt 14 and tightening member 15 clamp object inserted, the display unit 13 by fastening the bolt 14 protrudes from the washer, the display body tightened so as to form a protruding portion 16 is proposed.

【0003】 [0003]

【発明が解決しようとする課題】しかるに、トルクレンチでは、ボルトのねじ込み力を検出することができるが実際に取付機器の接触部分の圧力がどの程度の締め付け圧力になっているかを表示するものではない。 [0007] However, in the torque wrench, as to indicate whether it is possible to detect the screwing force of the bolt is actually turned clamping pressure of how much pressure of the contact portion of the mounting device Absent. また、感圧シートを挟んで変色させるものでは、感圧シートが薄く、挟まれた部分だけが変色するので、外側から変色部分が見え難く、プラスティックなどの透明ワッシャを使用すると破損し易い問題がある。 Further, the one which discolor across the pressure-sensitive sheet, thin pressure-sensitive sheet, only the portion sandwiched is discolored, discolored portion from the outside is hardly visible, damage to a transparent washer, such as plastic liable problem is there. このため、感圧シートを挟んで一度締め付けた後に、ボルトを緩めて変色を確認し、元の状態に締め付けるようにしているが、作業に手数を要し、締め付け状態が変化するおそれがあるだけでなく取付作業時間も長くなるなどの欠点があった。 Thus, after tightening once across the pressure-sensitive sheet, by loosening the bolts to confirm discoloration, but so as to fasten to the original state, requires labor to work, there is a risk that the clamping state is changed by also installation work time but there is a drawback of such longer.

【0004】また、平座金の間に表示部を挟んだ締め付け表示体をボルトと被締め付け体との間に挿入し、締め付けによる表示部のはみ出しを目視するものでは、座金にかかるボルトの締め付け圧力を確認することはできるが、このボルトにより取り付けられた機器の接触部分全体の締め付け状態が、どのような圧力になっているかを確認するものではなかった。 Further, flat and sandwiched tightening display body display section between the washer inserted between the bolt and the clamping body, is intended to visually protrusion of the display unit by fastening, tightening bolts according to the washers pressure although it is possible to check the tightening state of the entire contact portion of the instrument which is attached by the bolt it was not intended to make sure that they are what pressure.

【0005】本発明は、上述の欠点を無くし、取付機器と設置面との間の締め付け圧力を外部から容易に確認でき、取付機器の締め付け状態を確実に検出できるようにした検出方法を提供する。 [0005] The present invention eliminates the aforementioned drawbacks can easily ascertain the clamping pressure from the outside between the mounting device installation surface, to provide a detection method to the tightened state of mounting devices can be reliably detected .

【0006】 [0006]

【課題を解決するための手段】このため、圧力を受けて変色(発色を含む)する感圧シートを、弾性板の表面に一体に設けた圧力検出シートをそなえ、取付機器と設置面の間に前記の圧力検出シートを取付機器と設置面との接触部から外周にはみ出させるように挿入し、締め付け圧力により弾性板を圧縮してはみ出し部に変形を生じさせ、この変形部における感圧シートの変色を目視あるいはセンサーで確認して締め付け圧力を検出するようにしている。 [SUMMARY OF To this end, the pressure-sensitive sheet that changes color under pressure (containing a color), includes a pressure detecting sheet provided integrally on the surface of the elastic plate, between the mounting device installation surface said pressure detecting sheet inserted so as to protrude to the outer periphery from the contact portion between the mounting device installation surface, causing deformation portion protruding to compress the elastic plate by clamping pressure, the pressure-sensitive sheet in the deformed portion and to detect the pressure clamping to confirm visually or sensor discoloration. なお、圧力検出シートは、圧力を受けないときに透明な感圧シートを使用し、低い圧力で変色する感圧シートを下層にし、高い圧力で変色する感圧シートを上層にして弾性板の表面に一体に設けたものでもよい。 The pressure detection sheet uses a transparent pressure-sensitive sheet when not subjected to pressure, lower the pressure-sensitive sheet that changes color in the lower pressure, the surface of the pressure-sensitive sheet that changes color at a high pressure to the upper elastic plate it may be one which is provided integrally with the.

【0007】 [0007]

【発明の実施の形態】圧力検出シートは、圧力によって変色あるいは発色する感圧シートとゴム板などの弾性板を重ねて接着や、塗布などで一体に形成している。 DETAILED DESCRIPTION OF THE INVENTION pressure detecting sheet, adhesive and overlapping the elastic plate such as pressure-sensitive sheet and the rubber plate to discolor or developed by pressure are formed integrally coating or the like. なお、感圧シートは圧力によって変色の程度が次第に、または段階的に変わるものを用いるのが好ましいが、圧力を受けないときは透明で、異なる圧力でそれぞれ発色するシートを複数層に重ねたものでもよい。 Incidentally, those pressure-sensitive sheet is preferable to use an alternative to gradually the degree of discoloration by the pressure, or stepwise, transparent when not subjected to pressure, overlaid sheets of color respectively at different pressures in a plurality of layers But good.

【0008】この圧力検出シートを、取付機器の外周縁からはみ出すように取付機器の取付面より幾分大きくして、取付機器と設置面の間に、取付機器の取付面と設置面との広い方に弾性板を接触させ、小さい方の外周縁から圧力検出シートの感圧シートがはみ出すように挿入して締め付けを行う。 [0008] The pressure detecting sheet, somewhat larger than the mounting surface of the mounting device so as to protrude from the outer peripheral edge of the mounting device, between the mounting device installation surface, wide between the mounting surface and the mounting surface of the mounting device Write to contacting the elastic plate, performing clamping insert so the smaller the pressure detection sheet of pressure-sensitive sheet from the outer periphery of protruding. 締め付け圧力によって、取付機器の取付面に接触している部分の弾性板が圧縮されるが、はみ出し部には圧縮力が加わらないので、はみ出し部分の弾性板が膨れて変形し、その応力で感圧シートを変色あるいは発色させ、この変色あるいは発色は取付機器の外側になるため目視や光センサーによって確認でき、変色の程度によって取付機器と設置面との圧力を検出することができる。 The clamping pressure, although the elastic plate portion in contact with the mounting surface of the mounting device is compressed, protruding the compression force is not applied to the portions, deformed swelling elastic plate protruding portion, sensitive in the stress discolor or develop the pressure sheet, the discoloration or color development to become the outer side of the mounting device can be confirmed by visual observation or an optical sensor can detect the pressure of the mounting device and the installation surface by the degree of discoloration.

【0009】 [0009]

【実施例】これを図に示す実施例について詳述する。 EXAMPLES be described in detail embodiments shown in figure. 図3は、圧力検出シート1の例を示す側面図で、2は圧力を受けると圧力の程度により次第に変色する感圧シート、3は適当な厚さをもったゴム板などの弾性板で、感圧シート2と弾性板3は、たとえば接着あるいは感圧シート材を弾性板の表面に塗布するなどの方法で一体化させている。 Figure 3 is a side view showing an example of a pressure detecting sheet 1, 2 is pressure-sensitive sheet that changes color gradually the degree of pressure when subjected to pressure, 3 an elastic plate such as rubber plate having a suitable thickness, pressure-sensitive sheet 2 and the elastic plate 3, for example, an adhesive or pressure-sensitive sheet material are integrated by a method such as coating to the surface of the elastic plate.

【0010】図1および図2は、前述の圧力検出シート1を用いて取付機器4を設置面5に取り付ける状態を示す側断面図で、図1はボルト6を締め付ける前の状態を、図2は締め付けた後の状態をそれぞれ示しており、 [0010] Figures 1 and 2 is a side sectional view showing a state of mounting on an installation surface 5 the attachment device 4 by using a pressure detecting sheet 1 described above, a state before 1 tightening the bolt 6, Fig. 2 shows each state after tightening,
説明のため圧力検出シート1を誇大に示している。 Shows the pressure detecting sheet 1 exaggerated for explanation. 取付機器4は設置面5に圧力検出シート1を介して載置し、 Mounting device 4 is placed through the pressure detecting sheet 1 on the installation surface 5,
数箇所でボルト6により締め付けて取り付けられる。 It is mounted tightened by a bolt 6 at several points. 前記圧力検出シート1は、図1のように取付機器4の取付面が設置面より小さいときは、弾性板3を広い設置面5 The pressure detecting sheet 1, when the mounting surface of the mounting device 4 as shown in FIG. 1 is smaller than the installation surface is wider installation surface 5 an elastic plate 3
に接触させ、感圧シート2が取付機器4に接触するように挿入され、取付機器4の外周にはみ出し部7を形成させている。 Contacting, the pressure-sensitive sheet 2 is inserted so as to contact the mounting device 4, thereby forming the protruding portion 7 on the outer periphery of the mounting device 4. なお、はみ出し部7は、実際には2〜5mm It should be noted that the protruding portion 7 is actually a 2~5mm
程度あれば十分である。 If the degree is sufficient.

【0011】図1の状態では、ボルト6を締め付けておらないため、感圧シート2が変色していない。 [0011] In the state of FIG. 1, since no folded tightening the bolts 6, pressure-sensitive sheet 2 is not discolored. 図2のようにボルト6を締め付けると、取付機器4の取付面に接触している部分の圧力検出シート1が圧縮されて感圧シート2が変色するとともに弾性板3が圧縮され、はみ出し部7には圧縮力が加わらないので、このはみ出し部7 When tightening the bolt 6 as shown in FIG. 2, the elastic plate 3 are compressed with pressure-sensitive sheet 2 pressure detecting sheet 1 in the portion provided in contact with the mounting surface of the mounting device 4 is compressed is discolored, protruding portions 7 since the compressive force is not applied to, the protruding portion 7
の弾性板3が内側の圧縮にともなって変形して膨れ、その応力で感圧シート2の取付機器外周縁部分が網目で示すように変色する。 Elastic plates 3 of blisters and deformed with the inside of the compression, the mounting device outer peripheral edge portion of the pressure-sensitive sheet 2 in its stress discolored as shown by the mesh. この変色部8は取付機器4の周縁から外側にはみ出しているので、外側から確実に目視あるいは光センサーで確認ができ、あらかじめ把握しておいた圧力と変色の度合いの関係により確認された変色の度合いと比較して圧力を検出する。 This discoloration 8 protrudes outwardly from the peripheral edge of the mounting device 4, to check in reliably visually or light sensor from the outside, of the confirmed discolored by relationship previously grasped in advance pressure and the degree of discoloration detecting the pressure as compared to the degree. したがって、取付機器4を囲むはみ出し部7における感圧シート2の変色が、 Therefore, discoloration of the pressure-sensitive sheet 2 in the protruding portion 7 surrounding the mounting device 4,
全周で所定の色と同じ程度になるように、それぞれのボルト6を締め付けることにより、取付機器4を均一な圧力で設置面5に取り付けることができ、その締め付け圧力を感圧シート2の変色でチェックすることができる。 To be the same extent as predetermined color in the entire circumference, by tightening the respective bolt 6, can be attached to the installation surface 5 the attachment device 4 at a uniform pressure, the clamping discoloration pressure pressure-sensitive sheet 2 in it is possible to check.

【0012】なお、圧力検出シート1の感圧シート2 [0012] It should be noted that the pressure-sensitive sheet 2 of the pressure detection sheet 1
は、図4に示すように圧力を加えないときは透明なシートを用い、弾性板3に近い下層に低い圧力で発色または変色する感圧シート2aを、上層に高い圧力で発色または変色する感圧シート2bを重ねて構成し、圧力による変化を各層の変化で検出するようにしてもよい。 Feeling is that a transparent sheet when not applying pressure as shown in FIG. 4, the pressure-sensitive sheet 2a to coloring or discoloration at a low pressure in the lower layer closer to the elastic plate 3, color development or discoloration at high pressure in the upper layer constructed by superimposing the pressure sheet 2b, it may be detected by a change in the layers change due to pressure. また、 Also,
取付面が大きいときは、圧力検出シート1の中央部分を省くようにしてもよい。 When the mounting surface is large, it may be omitted central portion of the pressure detecting sheet 1.

【0013】 [0013]

【発明の効果】このように本発明は、感圧シートを弾性板の表面に一体に設けた圧力検出シートを、取付機器と設置面の間に接触部の外周からはみ出すように挿入し、 [Effect of the Invention] Thus, the present invention is a pressure detecting sheet provided integrally with the pressure sensitive sheet on the surface of the elastic plate, inserted so as to protrude from the outer circumference of the contact portion between the mounting device installation surface,
締め付け圧力によるはみ出し部の感圧シートの変色を確認して締め付け圧力を検出するようにしているので、ボルト部分の締め付け圧力だけでなく、取付機器全体の締め付け圧力を検出することができ、取付機器の外側で変色を確認できるので目視が容易で、締め付けを緩めるなどの手数を必要とせずに迅速確実に締め付け圧力の検出を行い得る効果が得られる。 Tightening since to detect the pressure tightening check the discoloration of the pressure-sensitive sheet of the portion protruding by the pressure, not only the tightening pressure of the bolts portion, it is possible to detect the tightening pressure of the entire mounting equipment, mounting devices since the outer can see a color change visually easy handling effect capable of performing rapid tighten detection of pressure without requiring such loosening the clamping is obtained. また、取付機器の外周全面で確認できるので片締めを防止でき、弾性板による防振効果が得られ、機器のがたつきやボルトのゆるみを防ぎ、取り付けを確実にすることかできる。 Since it confirmed at the outer entire surface of the mounting device can be prevented uneven tightening, vibration damping effect is obtained by the elastic plate to prevent loosening of the backlash and bolts devices can either be to ensure mounting.

【0014】なお、圧力検出シートに、圧力を受けないときに透明な感圧シートを用い、低い圧力で変色する感圧シートを下層にし、高い圧力で変色する感圧シートを上層にして弾性板の表面に一体に設けるようにすれば、 [0014] Incidentally, the pressure detecting sheet, a transparent pressure-sensitive sheet when not under pressure, the pressure-sensitive sheet that changes color at a low pressure in the lower layer, and a pressure-sensitive sheet that changes color at a high pressure to the upper elastic plate if the surface of the so as to provide integrated,
一定の圧力範囲で締め付けを行う場合の確認を容易にすることができる。 It can facilitate confirmation of a case of performing tightening with a constant pressure range.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施例を示す一部の側断面図で、締め付け前の状態を示している。 [1] In a side cross-sectional view of a portion showing an embodiment of the present invention, showing a state before tightening.

【図2】図1の実施例における締め付け後の状態を示す側断面図である。 2 is a side sectional view showing a state after the fastening in the embodiment of FIG.

【図3】本発明における圧力検出シートの実施例を示す側面図である。 3 is a side view showing an embodiment of the pressure sensing sheet in the present invention.

【図4】別の圧力検出シートの実施例を示す側面図である。 Is a side view showing an embodiment of FIG. 4 Another pressure detecting sheet.

【図5】従来の例を示す側断面図である。 5 is a side sectional view showing a conventional example.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 圧力検出シート 2 感圧シート 3 弾性板 4 取付機器 5 設置面 6 ボルト 7 はみ出し部 8 変色部 First pressure detection sheet second pressure sheet 3 elastic plate 4 mounted device 5 installation surface 6 bolt 7 protruding portion 8 discoloration

───────────────────────────────────────────────────── フロントページの続き (72)発明者 宮河 秀和 福岡県北九州市八幡西区黒崎城石2番1号 株式会社安川電機内 Fターム(参考) 2F051 AB03 BA07 ────────────────────────────────────────────────── ─── front page of the continuation (72) inventor Miyagawa Hidekazu Kitakyushu, Fukuoka Prefecture Yahatanishi-ku Kurosakishiroishi No. 2 No. 1 Yaskawa Electric Corporation in the F-term (reference) 2F051 AB03 BA07

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 取付機器と設置面との間に、圧力を受けて変色する感圧シートを弾性板の表面に一体に設けた圧力検出シートを、取付機器と設置面の接触部から外周へはみ出すように挿入し、締め付け圧力により弾性板を圧縮してはみ出し部に変形を生じさせ、変形したはみ出し部における感圧シートの変色により締め付け圧力を検出することを特徴とする締め付け圧力検出方法。 Between 1. A mounting device and the installation surface, the pressure detection sheet the pressure-sensitive sheet provided integrally on the surface of the elastic plate which changes color under pressure, to the outer periphery from the contact portion of the mounting device installation surface insert as protruding, clamping cause deformation portion protruding to compress the elastic plate by the pressure, the clamping pressure detection method and detecting a clamping pressure by discoloration of the pressure sensitive sheet in the deformed protruding portion.
  2. 【請求項2】 前記感圧シートが圧力を受けないときに透明で、低い圧力で変色する感圧シートを下層にし、高い圧力で変色する感圧シートを上層にして弾性板の表面に一体に設けている請求項1の締め付け圧力検出方法。 2. A transparent when said pressure sensitive sheet is not subjected to pressure, the pressure-sensitive sheet that changes color at a low pressure in the lower layer, integrally on the surface of the pressure-sensitive sheet that changes color at a high pressure to the upper elastic plate clamping pressure detecting method according to claim 1 is provided.
JP2000400929A 2000-12-28 2000-12-28 Tightening pressure detection method Pending JP2002202213A (en)

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