JP2018066606A - Vernier caliper fixture - Google Patents
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- JP2018066606A JP2018066606A JP2016204342A JP2016204342A JP2018066606A JP 2018066606 A JP2018066606 A JP 2018066606A JP 2016204342 A JP2016204342 A JP 2016204342A JP 2016204342 A JP2016204342 A JP 2016204342A JP 2018066606 A JP2018066606 A JP 2018066606A
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- 238000005259 measurement Methods 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 description 2
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- 238000005452 bending Methods 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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Abstract
Description
本発明は、精密な長さの測定に用いられるノギスを手で支えることなく該ノギスによる長さの測定をできるようにするノギス固定治具に関する。 The present invention relates to a vernier caliper fixing jig that enables the length of a caliper to be measured without manually supporting the caliper used for measuring a precise length.
高い精度の機械加工が求められる機械部品の製造現場等では、長さの精密な測定が可能な器具としてノギスが広く一般的に使用されている。ノギスは、幅方向に対して垂直な長手方向に延びる本尺と、該長手方向に沿って摺動できる態様で該本尺に取り付けられたスライダーと、を有する。 In a machine part manufacturing site where high-precision machining is required, vernier calipers are widely and generally used as instruments capable of precise length measurement. The vernier caliper has a main scale extending in the longitudinal direction perpendicular to the width direction, and a slider attached to the main scale in such a manner that it can slide along the longitudinal direction.
本尺には、例えば、目盛りを構成する各線が該長手方向に並んで印字されている。また、本尺には、長手方向の一端に本尺の幅方向に向かって突出する本尺の外側用ジョウが設けられている。さらに、本尺には該幅方向の該外側用ジョウが突出している方向とは逆側に突出した本尺の内側用ジョウが設けられている。 On the main scale, for example, each line constituting the scale is printed side by side in the longitudinal direction. In addition, the main scale is provided with a main scale outer jaw that protrudes toward the width direction of the main scale at one end in the longitudinal direction. Further, the main scale is provided with a main scale inner jaw protruding in the opposite direction to the direction in which the outer jaw protrudes in the width direction.
そして、長手方向に摺動できる態様で本尺に取り付けられたスライダーには、該長手方向の両端のうち本尺の外側用ジョウ側の端に、該本尺の外側用ジョウの突出方向と同じ方向に突出するスライダーの外側用ジョウが設けられている。また、スライダーには、幅方向の該スライダーの外側用ジョウが突出している方向とは逆側に突出するスライダーの内側用ジョウが設けられている。 The slider attached to the main scale in such a manner that it can slide in the longitudinal direction has the same protruding direction of the outer jaw of the main scale at the end on the outer jaw side of the main scale among both ends in the longitudinal direction. An outer jaw for the slider protruding in the direction is provided. In addition, the slider is provided with an inner jaw of the slider that projects in the opposite direction to the direction in which the outer jaw of the slider projects in the width direction.
スライダーを摺動させて該本尺の外側用ジョウと、該スライダーの外側用ジョウと、で測長対象物を外側から挟み込むと該測長対象物の長さを測定できる。また、例えば、円筒状の被測定物の内径を測定したい場合、スライダーを摺動させて該本尺の内側用ジョウと、該スライダーの内側用ジョウと、を測長対象物の内側から外側に広げるように当てると測長対象物の内径を測定できる。 When the slider is slid and the measuring object is sandwiched from the outside by the outer jaw of the main scale and the outer jaw of the slider, the length of the measuring object can be measured. Also, for example, when measuring the inner diameter of a cylindrical object to be measured, the slider is slid to move the inner scale jaw of the main scale and the inner jaw of the slider from the inner side to the outer side of the measuring object The inner diameter of the object to be measured can be measured by applying it so as to spread.
スライダーには、該本尺の目盛りに隣接するようにバーニア目盛りが印字されており、両目盛りを所定の方法で組み合わせて用いることで、単に本尺の目盛りを読み取るよりも高い精度で長さを測定できる。 A vernier scale is printed on the slider so as to be adjacent to the scale of the main scale. By using a combination of both scales in a predetermined method, the length can be increased with higher accuracy than simply reading the scale of the main scale. It can be measured.
また、目盛りを作業者が読み取ると読み取り誤差等を生じるため、測長の精度を高めるために、例えば、目盛りを電子機器に読み取らせて、読み取り値を該スライダーに備えられるデジタル表示部に表示させる電子式ノギスが実用されている。特許文献１にはそのようなノギスの一例が開示されている。 In addition, when an operator reads the scale, a reading error or the like occurs. Therefore, in order to improve the accuracy of length measurement, for example, the scale is read by an electronic device and the reading value is displayed on a digital display unit provided in the slider. Electronic calipers are in practical use. Patent Document 1 discloses an example of such a caliper.
ノギスを用いた長さの測定は、基本的には作業者の両手を使って実施される。一般的には、一方の手で被測定物を保持し、もう一方の手でノギスを支えながら操作して被測定物の長さを測定する。そして、機械部品の製造現場等では、作業者はノギスで測定した値を例えば記録表等に記入するか、ＰＣに入力等して記録する。 Measurement of length using calipers is basically performed using both hands of the operator. In general, the length of the object to be measured is measured by holding the object to be measured with one hand and supporting the caliper with the other hand. Then, at a machine part manufacturing site or the like, the operator records the value measured with a caliper, for example, in a recording table or the like, or inputs it into a PC and records it.
ここで、被測定物の保持と、ノギスの支持及び操作と、を片手だけでするのは、ノギスの形状、大きさ等から困難である。そのため、多数の被測定物に対して次々と測定を実施する場合、作業者は測定の度にノギスを置いてから測定値を記録して、次の測定のために再びノギスを持ち直さなければならず、手間がかかり効率が悪い。特に、被測定物の数量が多くなるほどその弊害が顕著となり、さらには、作業者の測定ミスを生じる原因になる場合もある。 Here, it is difficult to hold the object to be measured and to support and operate the caliper with only one hand because of the shape and size of the caliper. Therefore, when performing measurements one after another on a large number of objects to be measured, the operator must record the measured value after placing a caliper after each measurement, and must retake the caliper for the next measurement. It takes time and is inefficient. In particular, as the quantity of objects to be measured increases, the adverse effect becomes more prominent, and it may cause an operator's measurement error.
本発明はかかる問題に鑑みてなされたものであり、その目的とするところは、ノギスを用いた測定作業の効率を向上できるノギス固定治具を提供することである。 This invention is made | formed in view of this problem, The place made into the objective is providing the caliper fixing jig which can improve the efficiency of the measurement operation | work using a caliper.
本発明の一態様によれば、幅方向に対して垂直な長手方向に延びる本尺と、該長手方向に沿って摺動できる態様で該本尺に取り付けられたスライダーと、を備えるノギスを固定するためのノギス固定治具であって、該ノギスを支持する支持部材と、該支持部材に固定され、該支持部材に対する該ノギスの位置を決める位置決め部材と、該支持部材に該ノギスを固定する固定部材と、を有し、該位置決め部材は、該支持部材に接する第１面と、該第１面とは反対側の第２面と、を有する基部と、該基部の該第２面側に立設され、該幅方向において該スライダーを把持する一対の把持部と、を含み、該固定部材は、該スライダーに対して該本尺を摺動できるように該スライダーを該一対の把持部の間に固定することを特徴とするノギス固定治具が提供される。 According to one aspect of the present invention, a caliper comprising a main scale extending in a longitudinal direction perpendicular to the width direction and a slider attached to the main scale in a manner capable of sliding along the longitudinal direction is fixed. A caliper fixing jig for supporting the caliper, a positioning member fixed to the support member and determining a position of the caliper relative to the support member, and fixing the caliper to the support member A base member having a first surface in contact with the support member, a second surface opposite to the first surface, and the second surface side of the base portion. And a pair of gripping portions that grip the slider in the width direction, and the fixing member holds the slider so that the main scale can slide relative to the slider. A caliper fixing jig characterized by fixing between It is subjected.
本発明の一態様に係るノギス固定治具によると、該ノギス固定治具の位置決め部材の一対の把持部の間にノギスのスライダーが位置付けられ、該スライダーは固定部材により固定される。スライダーが固定されても本尺は該スライダーに対して摺動可能であるため、本尺を動かして被測定物の長さを測定できる。そして、ノギスが該ノギス固定治具に支持されるため、測定中に手でノギスを支える必要がない。 According to the caliper fixing jig according to one aspect of the present invention, the caliper slider is positioned between the pair of gripping portions of the positioning member of the caliper fixing jig, and the slider is fixed by the fixing member. Even if the slider is fixed, the main scale can slide with respect to the slider, so that the length of the object to be measured can be measured by moving the main scale. And since a caliper is supported by this caliper fixing jig, it is not necessary to support a caliper by hand during measurement.
作業者は、片手で被測定物を支持してノギスを操作することによって被測定物の長さを測定できる。これにより、もう一方の片手により測定値の記録作業ができるため、測定及び記録を迅速かつ安定的に実施できる。従来は、ノギスと、記入用のペン等と、を被測定物の数だけ交互に持ち替える必要があったが、本発明の一態様に係るノギス固定治具を用いると、持ち替えをしなくてよいため、大幅に作業量を減少させることができる。 The operator can measure the length of the object to be measured by operating the caliper while supporting the object to be measured with one hand. As a result, the measured value can be recorded with the other hand, so that measurement and recording can be performed quickly and stably. Conventionally, it was necessary to alternately change the number of the caliper and the writing pen etc. by the number of objects to be measured, but if the caliper fixing jig according to one aspect of the present invention is used, it is not necessary to change it. The amount of work can be greatly reduced.
以上のように、本発明の一態様により、ノギスを用いた測定作業の効率を向上できるノギス固定治具が提供される。 As described above, according to one aspect of the present invention, a caliper fixing jig that can improve the efficiency of measurement work using a caliper is provided.
本発明に係る実施形態について説明する。図１（Ａ）は、本実施形態に係るノギス固定治具を示す斜視図である。該ノギス固定治具は、ノギスのスライダーを固定する機能を有し、被測定物の測定に際し作業者が該ノギスを支えることなく該ノギスを操作して測定できる機能を有する。図１（Ａ）に示す通り、ノギス固定治具１は、支持部材３と、位置決め部材５と、固定部材７と、を有する。 Embodiments according to the present invention will be described. FIG. 1A is a perspective view showing a caliper fixing jig according to the present embodiment. The caliper fixing jig has a function of fixing a caliper slider, and has a function of allowing an operator to operate and measure the caliper without supporting the caliper when measuring an object to be measured. As shown in FIG. 1A, the caliper fixing jig 1 includes a support member 3, a positioning member 5, and a fixing member 7.
該支持部材３は、該ノギス固定治具１の土台であり、ノギスの本尺が摺動してノギスの重心の位置が変化してもノギスを安定的に支持できるように、所定の重量と大きさを有するように作製される。該支持部材３は、例えば、長板状に形成され、該ノギスの長手方向における長さが該本尺の該長手方向における長さよりも長くなるように作成されるとよく、また、該ノギスよりも重くなるように作成されるとよい。該支持部材３は、例えば、木材、金属材料により作成される。 The support member 3 is a base of the caliper fixing jig 1, and has a predetermined weight so that the caliper can be stably supported even if the caliper main scale slides and the position of the center of gravity of the caliper changes. It is made to have a size. The support member 3 is formed, for example, in the shape of a long plate, and the length of the caliper in the longitudinal direction may be longer than the length of the main scale in the longitudinal direction. It is good to make it heavy. The support member 3 is made of, for example, wood or a metal material.
例えば、測定作業時には、作業者が該ノギス固定治具１を作業台に載せて使用する。このとき、ノギスの本尺が所定の方向（例えば、該作業台に水平な面内）に摺動できるように、該支持部材３の該作業台と接する下面９と、該位置決め部材５が配される上面１１と、が互いに平行となるように形成される。また、例えば、該支持部材３には、上面１１に開口するねじ穴が形成されている。 For example, at the time of measurement work, an operator uses the caliper fixing jig 1 on a work table. At this time, the lower surface 9 of the support member 3 contacting the work table and the positioning member 5 are arranged so that the caliper main scale can slide in a predetermined direction (for example, in a plane horizontal to the work table). The upper surface 11 is formed so as to be parallel to each other. Further, for example, the support member 3 is formed with a screw hole that opens to the upper surface 11.
該位置決め部材５は、支持部材３に対するノギスのスライダーの位置を決める機能を有する。該位置決め部材５は、該支持部材３に接する第１面と、該第１面とは反対側の第２面１３ａと、を有する基部１３と、該基部１３の該第２面側１３ａに立設され、該幅方向において該スライダーを把持する一対の把持部１５と、を含む。 The positioning member 5 has a function of determining the position of the caliper slider with respect to the support member 3. The positioning member 5 includes a base portion 13 having a first surface in contact with the support member 3 and a second surface 13a opposite to the first surface, and stands on the second surface side 13a of the base portion 13. And a pair of gripping portions 15 that grip the slider in the width direction.
該基部１３は、該第２面１３ａから該第１面に通じるねじ穴が設けられている。基部１３のねじ穴と、支持部材３のねじ穴と、の位置が合わせられ、それぞれのねじ穴を通るようにねじが締められることで、該位置決め部材５が支持部材３に固定される。 The base portion 13 is provided with a screw hole that communicates from the second surface 13a to the first surface. The positioning member 5 is fixed to the support member 3 by aligning the screw holes of the base portion 13 and the screw holes of the support member 3 and tightening the screws so as to pass through the respective screw holes.
一対の把持部１５は、その間にノギスのスライダーを把持できるように、スライダーの幅方向の長さよりも大きい距離で互いに離間しており、また、互いの方に向いた面が平行な平面となるように形成される。なお、該一対の把持部１５の互いの方に向いた面はこれに限られず、該スライダーの外形に対応した形状で形成されてもよい。また、把持されるスライダーの破損を防止するために、固定部材７や把持部１５のスライダーと接する部分には、緩衝材が設けられてもよい。 The pair of gripping portions 15 are separated from each other by a distance larger than the length in the width direction of the slider so that the caliper slider can be gripped therebetween, and the surfaces facing each other are parallel planes. Formed as follows. The surfaces of the pair of gripping portions 15 facing each other are not limited to this, and may be formed in a shape corresponding to the outer shape of the slider. Further, in order to prevent the gripped slider from being damaged, a cushioning material may be provided on a portion of the fixing member 7 or the grip portion 15 that contacts the slider.
該位置決め部材５は、１枚の金属平板を、基部１３となる部分と、該基部１３となる部分に隣接した一対の把持部１５となる部分と、を含む所定の形状に切断し、該基部１３となる部分と、該一対の把持部１５となる部分と、の境界で垂直に折り曲げて形成される。一対の把持部１５の一方には、例えば、固定部材７を通すための穴１５ａが形成される。 The positioning member 5 cuts a single metal flat plate into a predetermined shape including a portion to be a base portion 13 and a portion to be a pair of gripping portions 15 adjacent to the portion to be the base portion 13. 13 is formed by bending vertically at the boundary between the portion to be 13 and the portion to be the pair of gripping portions 15. For example, a hole 15 a for passing the fixing member 7 is formed in one of the pair of gripping portions 15.
該固定部材７は、例えば、一対の把持部１５の一方に形成された穴１５ａに螺合可能な径を有するねじであり、該穴１５ａは、例えば、ねじ穴である。該固定部材７としてねじを用いる場合、該穴１５ａに螺合された状態の該固定部材７を締め込むと、該固定部材７の先端が該一対の把持部１５の間に置かれたノギスのスライダーを押す。そして、一対の把持部１５のうち該穴１５ａが形成されていない側に該スライダーが接触し、押圧されてスライダーが固定される。 The fixing member 7 is, for example, a screw having a diameter that can be screwed into a hole 15a formed in one of the pair of gripping portions 15, and the hole 15a is, for example, a screw hole. When a screw is used as the fixing member 7, when the fixing member 7 that is screwed into the hole 15 a is tightened, the tip of the fixing member 7 is a caliper placed between the pair of gripping portions 15. Press the slider. Then, the slider comes into contact with the side of the pair of gripping portions 15 where the hole 15a is not formed, and is pressed to fix the slider.
次に、本実施形態に係るノギス固定治具１の使用態様について説明する。 Next, the usage mode of the caliper fixing jig 1 according to the present embodiment will be described.
図１（Ｂ）に、本実施形態に係るノギス固定治具１と、該ノギス固定治具１に固定されたノギス２と、の上面図を示す。図１（Ｂ）に示す通り、ノギス２のスライダー４は支持部材３の上面１１上の一対の把持部１５の間に配され、固定部材７により固定される。支持部材３の下面９と上面１１とが互いに平行であるため、ノギス固定治具１に支持されたノギス２の本尺６は、該ノギス固定治具１が載せ置かれる作業台等の上面に対して平行となる。 FIG. 1B shows a top view of a caliper fixing jig 1 according to the present embodiment and a caliper 2 fixed to the caliper fixing jig 1. As shown in FIG. 1B, the slider 4 of the caliper 2 is disposed between the pair of gripping portions 15 on the upper surface 11 of the support member 3 and is fixed by the fixing member 7. Since the lower surface 9 and the upper surface 11 of the support member 3 are parallel to each other, the main scale 6 of the caliper 2 supported by the caliper fixing jig 1 is placed on the upper surface of a work table or the like on which the caliper fixing jig 1 is placed. Parallel to it.
被測定物１０の長さの測定時には、ノギス２の本尺６の外側用ジョウ６ａと、スライダー４の外側用ジョウ４ａと、の間に被測定物１０を挟み込むように、作業者は片手で被測定物１０を支えながら本尺６を摺動させる。すると、スライダー４の表示部４ｂには測定値が表示される。 When measuring the length of the object to be measured 10, the operator can hold the object to be measured 10 between the outer jaw 6 a of the main scale 6 of the caliper 2 and the outer jaw 4 a of the slider 4 with one hand. The main scale 6 is slid while supporting the DUT 10. Then, the measured value is displayed on the display section 4b of the slider 4.
スライダー４がノギス固定治具１に固定されても本尺６は固定されず、スライダー４に対して長手方向８に摺動可能であるため、ノギス２を用いた長さの測定が可能である。そして、ノギス固定治具１はノギス２を支えることができるため、作業者がノギス２を支える必要がない。図１（Ｂ）に示すように、作業者は片方の手１２だけ使って被測定物１０の長さを測定できるため、測定値を読み取ってもう一方の手で記録できる。 Even if the slider 4 is fixed to the caliper fixing jig 1, the main scale 6 is not fixed, and the slider 4 can slide in the longitudinal direction 8, so that the length using the caliper 2 can be measured. . And since the caliper fixing jig 1 can support the caliper 2, the operator does not need to support the caliper 2. As shown in FIG. 1B, the operator can measure the length of the DUT 10 using only one hand 12, so that the measured value can be read and recorded with the other hand.
複数の被測定物１０に対して次々と長さを測定し測定値を記録する作業を実施する際、本実施形態に係るノギス固定治具１を用いると、作業者は測定の度にノギス２を持ち替える必要がないため、ノギス２を用いた測定作業の効率を向上できる。 When the caliper fixing jig 1 according to the present embodiment is used to perform the operation of measuring the length one after another and recording the measurement values for the plurality of objects to be measured 10, the operator uses the caliper 2 every time the measurement is performed. Since there is no need to change the position, the efficiency of the measurement work using the caliper 2 can be improved.
本実施形態に係るノギス固定治具１は、スライダー４が一対の把持部１５に把持可能な大きさであれば、様々な長さのノギスを使用できる。これは、ノギス固定治具１は、把持部１５と固定部材７とでスライダー４を幅方向側から押圧して固定するものであり、ノギス固定治具１には長手方向に本尺６と干渉しうる構造物が無いためである。 The caliper fixing jig 1 according to the present embodiment can use calipers of various lengths as long as the slider 4 can be gripped by the pair of gripping portions 15. This is because the caliper fixing jig 1 presses and fixes the slider 4 from the width direction side with the grip portion 15 and the fixing member 7, and the caliper fixing jig 1 interferes with the main scale 6 in the longitudinal direction. This is because there are no possible structures.
なお、本発明は、上記実施形態の記載に限定されず、種々変更して実施可能である。例えば、上記の実施形態では、例えば、作業台の上に該ノギス固定治具の支持部材３を載せ置いてノギス固定治具１を使用することを想定しているが、本発明はこれに限定されない。例えば、作業台の上面に位置決め部材５を取り付けてもよい。この場合、該作業台が支持部材３となる。 In addition, this invention is not limited to description of the said embodiment, A various change can be implemented. For example, in the above embodiment, for example, it is assumed that the caliper fixing jig 1 is used by placing the support member 3 of the caliper fixing jig on the work table, but the present invention is limited to this. Not. For example, the positioning member 5 may be attached to the upper surface of the work table. In this case, the work table becomes the support member 3.
その他、上記実施形態に係る構造、方法等は、本発明の目的の範囲を逸脱しない限りにおいて適宜変更して実施できる。 In addition, the structure, method, and the like according to the above-described embodiment can be appropriately modified and implemented without departing from the scope of the object of the present invention.
１ ノギス固定治具
３ 支持部材
５ 位置決め部材
７ 固定部材
９ 下面
１１ 上面
１３ 基部
１３ａ 面
１５ 把持部
１５ａ 穴
２ ノギス
４ スライダー
４ａ スライダーの外側用ジョウ
４ｂ 表示部
６ 本尺
６ａ 本尺の外側用ジョウ
８ 長手方向
１０ 被測定物
１２ 手
DESCRIPTION OF SYMBOLS 1 Caliper fixing jig 3 Support member 5 Positioning member 7 Fixing member 9 Lower surface 11 Upper surface 13 Base portion 13a Surface 15 Holding portion 15a Hole 2 Vernier caliper 4 Slider 4a Slider outer jaw 4b Display portion 6 Scale 6a Outboard jaw 8 Longitudinal direction 10 Object to be measured 12 Hands
Claims (1)
該ノギスを支持する支持部材と、
該支持部材に固定され、該支持部材に対する該ノギスの位置を決める位置決め部材と、
該支持部材に該ノギスを固定する固定部材と、を有し、
該位置決め部材は、
該支持部材に接する第１面と、該第１面とは反対側の第２面と、を有する基部と、
該基部の該第２面側に立設され、該幅方向において該スライダーを把持する一対の把持部と、を含み、
該固定部材は、
該スライダーに対して該本尺を摺動できるように該スライダーを該一対の把持部の間に固定することを特徴とするノギス固定治具。 A caliper fixing jig for fixing a caliper comprising: a main scale extending in a longitudinal direction perpendicular to the width direction; and a slider attached to the main scale in a manner capable of sliding along the longitudinal direction. And
A support member for supporting the caliper;
A positioning member fixed to the support member and determining the position of the caliper relative to the support member;
A fixing member for fixing the caliper to the support member,
The positioning member is
A base having a first surface in contact with the support member, and a second surface opposite to the first surface;
A pair of grips that are erected on the second surface side of the base and grip the slider in the width direction,
The fixing member is
A caliper fixing jig that fixes the slider between the pair of gripping portions so that the main scale can slide with respect to the slider.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2016204342A JP2018066606A (en) | 2016-10-18 | 2016-10-18 | Vernier caliper fixture |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2016204342A JP2018066606A (en) | 2016-10-18 | 2016-10-18 | Vernier caliper fixture |
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| JP2018066606A true JP2018066606A (en) | 2018-04-26 |
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| CN204881375U (en) * | 2015-05-07 | 2015-12-16 | 桂林电子科技大学 | Feel bars displacement sensor timing device |
| CN105823391A (en) * | 2016-04-06 | 2016-08-03 | 鲍承德 | Device used for parallel positioning calibration of vernier caliper of rotating platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59117903U (en) * | 1983-01-28 | 1984-08-09 | 新潟精機株式会社 | micrometer stand |
| JPH0263403U (en) * | 1988-11-02 | 1990-05-11 | ||
| CN201715989U (en) * | 2010-06-23 | 2011-01-19 | 李正忠 | Parallel measurer of mouth closing position of central beam of eyeglass |
| JP2014106025A (en) * | 2012-11-26 | 2014-06-09 | Mitsubishi Materials Corp | Bonding position measuring device for circular target |
| CN203837607U (en) * | 2014-05-19 | 2014-09-17 | 中铁宝桥（南京）有限公司 | Vernier caliper for detecting section dimension |
| CN104654954A (en) * | 2015-01-20 | 2015-05-27 | 中国计量学院 | Vernier caliper calibrating device |
| CN204881375U (en) * | 2015-05-07 | 2015-12-16 | 桂林电子科技大学 | Feel bars displacement sensor timing device |
| CN105823391A (en) * | 2016-04-06 | 2016-08-03 | 鲍承德 | Device used for parallel positioning calibration of vernier caliper of rotating platform |
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