JPH06185964A - Out-of-roundness measuring jig - Google Patents
Out-of-roundness measuring jigInfo
- Publication number
- JPH06185964A JPH06185964A JP29539392A JP29539392A JPH06185964A JP H06185964 A JPH06185964 A JP H06185964A JP 29539392 A JP29539392 A JP 29539392A JP 29539392 A JP29539392 A JP 29539392A JP H06185964 A JPH06185964 A JP H06185964A
- Authority
- JP
- Japan
- Prior art keywords
- work
- substrate
- straight line
- roundness
- mounting holes
- 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.)
- Withdrawn
Links
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ワークの外周の真円度
を３点法により測定する簡易式の真円度測定治具に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple roundness measuring jig for measuring the roundness of the outer circumference of a work by a three-point method.
【０００２】[0002]
【従来の技術】外周が円形をなすべきワークの外周の真
円度を正確に測定するための真円度計は、例えば、ワー
クが同軸的に載せられる回転テーブルと、位置が固定し
たダイヤルゲージなどの検出器とを備えている。この検
出器は、例えば、ワークの径方向に移動しこのワークの
外周に接触する測定子を有している。そして、真円度の
測定時には、ワークを載せた回転テーブルを回転させ、
ワークの外周に検出器の測定子を倣わせる。こうして、
ワークの外周の輪郭線すなわち真円度誤差曲線を求め、
これから真円度を求める。2. Description of the Related Art A roundness meter for accurately measuring the roundness of the outer circumference of a work whose outer circumference should be circular is, for example, a rotary table on which the work is coaxially mounted and a dial gauge whose position is fixed. It is equipped with a detector such as. This detector has, for example, a probe that moves in the radial direction of the work and contacts the outer circumference of the work. Then, when measuring the roundness, rotate the rotary table on which the work is placed,
The probe of the detector is made to follow the outer circumference of the work. Thus
Obtain the contour line of the work periphery, that is, the roundness error curve,
The roundness is calculated from this.
【０００３】また、より簡便な真円度測定方法として
は、直径法や３点法がある。直径法は、例えば、マイク
ロメーターによりワークをその径方向において挟んで、
ワークの直径を測定し、複数か所で測定した直径の最大
値と最小値との差を真円度（直径法）とするものであ
る。また、３点法は、例えば、Ｖブロックに、そのＶ溝
の２等分線上で移動する測定子を有するダイヤルゲージ
を設けた測定治具を用いる。そして、ＶブロックのＶ溝
にワークの外周を２点で当てた状態で、ワークを回転さ
せ、このワークの外周に測定子を倣わせる。Ｖ溝の角度
をθとすると、測定子の移動距離が真円度（３点法θ）
とされる。Further, as a simpler roundness measuring method, there are a diameter method and a three-point method. The diameter method, for example, sandwiches the work in the radial direction with a micrometer,
The diameter of the work is measured, and the difference between the maximum value and the minimum value of the diameters measured at a plurality of points is defined as the roundness (diameter method). The three-point method uses, for example, a measuring jig in which a V block is provided with a dial gauge having a tracing stylus that moves on the bisector of the V groove. Then, with the outer circumference of the work being in contact with the V groove of the V block at two points, the work is rotated and the probe is made to follow the outer circumference of the work. When the angle of the V groove is θ, the moving distance of the probe is roundness (3-point method θ)
It is said that
【０００４】[0004]
【発明が解決しようとする課題】前記真円度計は、切削
加工などの現場でワークの真円度を手軽に検査するのに
は適さない。また、直径法や３点法では、検出できない
ひずみ円がある。例えば、ワークの外周の切削加工時、
ワークを３等分型のコレットチャックにより保持した場
合には、加工後のワークの外周が極端にいうと３角形状
に歪みやすいが、このようなワークは、θ＝60°の３点
法では、真円度を的確に測定できない。また、４等分型
のコレットチャックにより保持した場合には、ワークが
４角形状に歪みやすく、θ＝90°の３点法では、真円度
を的確に測定できない。ところが、前記従来の３点法用
の測定治具は、Ｖブロックを用いており、そのＶ溝の角
度が一定であるため、歪みの傾向が異なるワークに対し
て的確に共用できない問題があった。これとともに、Ｖ
ブロックを用いた測定治具では、ワークの径の違いにも
対応しにくい問題があった。The roundness meter is not suitable for easily inspecting the roundness of a work on the spot such as cutting. In addition, there are strain circles that cannot be detected by the diameter method or the three-point method. For example, when cutting the outer periphery of the work,
When a work is held by a trisection collet chuck, the outer periphery of the work after processing tends to be distorted into a triangular shape, but such a work is not possible with the three-point method of θ = 60 °. , Roundness cannot be measured accurately. Further, when the work is held by a quadrant collet chuck, the work is easily distorted into a square shape, and the roundness cannot be accurately measured by the three-point method of θ = 90 °. However, the conventional measuring jig for the three-point method uses a V block, and since the angle of the V groove is constant, there is a problem that it cannot be accurately shared with works having different strain tendencies. . Along with this, V
The measuring jig using the block has a problem that it is difficult to cope with the difference in the diameter of the work.
【０００５】本発明は、このような問題点を解決しよう
とするもので、ワークの径や歪みの傾向の違いに対応で
きる３点法用の真円度測定治具を提供することを目的と
する。さらに、外周にテーパーの付いたワークにも的確
に対応できる真円度測定治具を提供することを目的とす
る。The present invention is intended to solve such a problem, and an object of the present invention is to provide a roundness measuring jig for a three-point method capable of coping with the difference in the tendency of the diameter and distortion of the work. To do. Further, it is an object of the present invention to provide a roundness measuring jig that can accurately cope with a work having a taper on the outer circumference.
【０００６】[0006]
【課題を解決するための手段】請求項１の発明の真円度
測定治具は、前記前者の目的を達成するために、基板
と、この基板に設けられその平らな表面に沿って直線的
に移動する測定子を有する長さ計と、前記基板の表面で
前記測定子の軌跡を含む基準直線について対称に位置し
て形成された複数対の取付孔に着脱自在に取付けられる
一対のピンとを備え、前記取付孔は、前記測定子を通り
前記基準直線について対称な複数対の直線上にそれぞれ
並べて形成したものである。In order to achieve the former object, a roundness measuring jig according to the invention of claim 1 linearly extends along a substrate and a flat surface provided on the substrate. And a pair of pins detachably attached to a plurality of pairs of mounting holes formed symmetrically with respect to a reference straight line including the trace of the probe on the surface of the substrate. The attachment holes are formed by arranging them on a plurality of pairs of straight lines that pass through the tracing stylus and are symmetrical with respect to the reference straight line.
【０００７】さらに、請求項２の発明の真円度測定治具
は、前記後者の目的をも達成するために、前記ピンが、
前記基板の表面と直交する軸を中心として回転自在の円
板状の超硬チップからなり、この超硬チップの周縁部を
滑らかに形成したものである。Further, in the roundness measuring jig of the invention of claim 2, in order to achieve the latter object, the pin is
The disc-shaped cemented carbide chip is rotatable around an axis orthogonal to the surface of the substrate, and the peripheral edge of the cemented carbide chip is formed smoothly.
【０００８】[0008]
【作用】請求項１の発明の真円度測定治具では、ワーク
の外周の真円度を測定するとき、まず、基板において、
このワークの径や存在すると考えられる歪みの傾向に応
じた適切な一対の取付孔にピンを取付ける。すなわち、
測定子の軌跡を含む基準直線と測定子および取付孔を結
ぶ直線とがなす角度を選択することにより、ワークの歪
みの傾向の違いに対応し、また、一直線上における測定
子から取付孔までの距離を選択することにより、ワーク
の径の違いに対応する。いずれにせよ、一対のピンは、
前記基準直線について対称な一対の取付孔に取付ける。
それから、一対のピンにワークの外周を当てた状態でこ
のワークを回転させ、このワークの外周に長さ計の測定
子を倣わせる。そして、この測定子の移動距離として真
円度を求める。In the roundness measuring jig of the invention of claim 1, when measuring the roundness of the outer periphery of the work, first, in the substrate,
Pins are mounted in a pair of appropriate mounting holes according to the diameter of this work and the tendency of distortion that is considered to exist. That is,
By selecting the angle formed by the reference straight line including the trace of the contact point and the line connecting the contact point and the mounting hole, the difference in the tendency of work distortion can be dealt with, and the line from the contact point to the mounting hole By selecting the distance, it is possible to cope with the difference in the diameter of the work. In any case, the pair of pins
It is mounted in a pair of mounting holes that are symmetrical with respect to the reference line.
Then, the work is rotated with the outer circumference of the work being in contact with the pair of pins, and the probe of the length meter is made to follow the outer circumference of the work. Then, the roundness is obtained as the moving distance of the probe.
【０００９】さらに、請求項２の発明の真円度測定治具
では、ピンの円板状の超硬チップがワークの外周に接
し、このワークの回転に伴い、超硬チップが基板の表面
と直交する軸を中心として回転し、ワークの外周を転が
る。円板状の超硬チップの周縁部は、滑らかになってい
て、ワークのテーパーの付いた外周面でも確実に接触す
る。Further, in the roundness measuring jig of the invention of claim 2, the disk-shaped cemented carbide tip of the pin contacts the outer periphery of the work, and the rotation of the workpiece causes the cemented carbide chip to contact the surface of the substrate. It rotates around orthogonal axes and rolls on the outer circumference of the work. The peripheral edge of the disc-shaped cemented carbide tip is smooth, and even the tapered outer peripheral surface of the workpiece can be reliably contacted.
【００１０】[0010]
【実施例】以下、本発明の真円度測定治具の一実施例に
ついて、図面を参照しながら説明する。１は基板で、こ
の基板１の表面は、平面になっている。そして、この基
板１の図示上端部には、長さ計であるダイヤルゲージ２
が固定されている。このダイヤルゲージ２は、基板１の
表面に沿って直線的に移動する測定子３を有している。
なお、ダイヤルゲージ２は、０点調節のために、基板１
に対し測定子３の移動方向において位置を微調節可能に
なっている。そして、前記基板１には、その表面から垂
直に複数対の取付孔4a，4b，4c，5a，5b，5cが形成され
ている。これら取付孔4a，4b，4c，5a，5b，5cは、一対
のピン６が着脱自在に取付けられるものである。これら
ピン６は、取付孔4a，4b，4c，5a，5b，5cに同軸的に嵌
合される軸体７と、この軸体７に同軸的に回転自在に組
み込まれた円板状ないし円柱状の超硬チップ８とからな
っている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the roundness measuring jig of the present invention will be described below with reference to the drawings. Reference numeral 1 is a substrate, and the surface of the substrate 1 is a flat surface. At the upper end of the board 1 shown in the figure, a dial gauge 2 which is a length meter is provided.
Is fixed. The dial gauge 2 has a tracing stylus 3 that moves linearly along the surface of the substrate 1.
In addition, the dial gauge 2 is provided on the substrate 1 for adjusting the zero point.
On the other hand, the position can be finely adjusted in the moving direction of the probe 3. A plurality of pairs of mounting holes 4a, 4b, 4c, 5a, 5b, 5c are formed on the substrate 1 vertically from the surface thereof. These mounting holes 4a, 4b, 4c, 5a, 5b, 5c are used for detachably mounting a pair of pins 6. These pins 6 are a shaft body 7 coaxially fitted in the mounting holes 4a, 4b, 4c, 5a, 5b, 5c, and a disk-shaped or circular body coaxially rotatably incorporated in the shaft body 7. It is composed of a columnar carbide tip 8.
【００１１】つぎに、前記取付孔4a，4b，4c，5a，5b，
5cの配置について詳細に説明する。図３において、その
紙面は基板１の表面、Ｏは前記測定子３の位置（以下、
原点という）、ａはこの測定子３の軌跡を含む基準直線
である。また、ｃは基準直線ａ上に中心Ｐを有し原点Ｏ
を通る円である。原点Ｏを通り基準直線ａに対してα＝
45°−θ／４の角度をなす２直線m1，m2と前記円ｃとの
交点をQ1，Q2とすると、これら交点Q1，Q2における円ｃ
の接線n1，n2は、前記基準直線ａにおいて角度θで交わ
る。これは、円ｃの径ｒによらず、成立する。そして、
まず、同一符号で表している対をなす取付孔4a，4b，4
c，5a，5b，5cは、基準直線ａについて対称に位置して
いる。また、取付孔4a，4b，4cは、α＝22.5°の両直線
m1，m2上に並んでいる。一方、取付孔5a，5b，5cは、α
＝30°の両直線m1，m2上に並んでいる。したがって、前
者に対してはθ＝90°となり、後者に対してはθ＝60°
となる。Next, the mounting holes 4a, 4b, 4c, 5a, 5b,
The arrangement of 5c will be described in detail. In FIG. 3, the paper surface is the surface of the substrate 1, O is the position of the probe 3 (hereinafter,
The origin is referred to as a) and a is a reference straight line including the trace of the probe 3. Further, c has a center P on the reference straight line a and has an origin O.
It is a circle that passes through. Α = for the reference straight line a passing through the origin O
Let Q1 and Q2 be the intersections of two straight lines m1 and m2 that form an angle of 45 ° −θ / 4 and the circle c, and circles c at these intersections Q1 and Q2.
The tangents n1 and n2 of intersect at the angle θ on the reference straight line a. This holds regardless of the diameter r of the circle c. And
First, a pair of mounting holes 4a, 4b, 4 represented by the same reference numeral
c, 5a, 5b and 5c are located symmetrically with respect to the reference straight line a. Also, the mounting holes 4a, 4b, 4c are both straight lines with α = 22.5 °
They are lined up on m1 and m2. On the other hand, the mounting holes 5a, 5b, 5c are
They are lined up on both straight lines m1 and m2 of ＝ 30 °. Therefore, θ = 90 ° for the former and θ = 60 ° for the latter.
Becomes
【００１２】つぎに、前記の構成について、その作用を
説明する。ワークの外周の例えば切削加工後の真円度を
測定するには、まず、ワークの径や存在すると考えられ
る歪みの傾向に応じた適切な一対の取付孔4a，4b，4c，
5a，5b，5cにピン６をそれぞれ取付ける。例えば、外周
の切削加工時３等分型のコレットチャックにより保持
し、外周が極端にいうと３角形状に歪みやすいワークの
場合は、内側の取付孔4a,4b，4cにピン６を取付けると
よい。一方、外周の切削加工時４等分型のコレットチャ
ックにより保持し、外周が極端にいうと４角形状に歪み
やすいワークの場合は、外側の取付孔5a，5b，5cにピン
６を取付けるとよい。また、外径の大きいワークの場合
は、測定子３から遠い取付孔4a，5aにピン６を取付け、
外径が小さいワークの場合は、測定子３に近い取付孔4
c，5cにピン６を取付け、中間の外径のワークの場合
は、中間の取付孔4b，5bにピン６を取付ければよい。い
ずれにせよ、一対のピン６は、基準直線ａについて対称
な一対の取付孔4a，4b，4c，5a，5b，5cにそれぞれ取付
ける。Next, the operation of the above configuration will be described. In order to measure the roundness of the outer circumference of the work, for example, after cutting, first, a suitable pair of mounting holes 4a, 4b, 4c, which correspond to the diameter of the work and the tendency of distortion that is considered to exist,
Attach pins 6 to 5a, 5b and 5c respectively. For example, in the case of a work that is held by a trisection collet chuck during cutting of the outer periphery and the outer periphery is extremely distorted into a triangular shape, attach the pin 6 to the inner mounting holes 4a, 4b, 4c. Good. On the other hand, in the case of a work held by a quadrant collet chuck during cutting of the outer circumference, and when the outer circumference is extremely likely to be distorted into a square shape, attach the pin 6 to the outer mounting holes 5a, 5b, 5c. Good. If the workpiece has a large outer diameter, attach the pin 6 to the mounting holes 4a, 5a far from the contact point 3,
For workpieces with a small outer diameter, mounting hole 4 close to the contact point 3
Pins 6 are attached to c and 5c, and in the case of a work having an intermediate outer diameter, the pin 6 may be attached to the intermediate attachment holes 4b and 5b. In any case, the pair of pins 6 are mounted in the pair of mounting holes 4a, 4b, 4c, 5a, 5b, 5c which are symmetrical with respect to the reference straight line a.
【００１３】そして、基板１の表面上にワーク11a ，11
b を載せ、このワーク11a ，11b の外周を一対のピン６
の超硬チップ８に接触させた状態で、ワーク11a ，11b
を回転させ、このワーク11a ，11b の外周にダイヤルゲ
ージ２の接触子３を倣わせる。その間に、複数か所で、
ダイヤルゲージ２の示す値を読み取り、この読み取りに
基づき、接触子３の移動距離として真円度を求める。な
お、ワーク11a ，11bの回転に伴い、ピン６の超硬チッ
プ８が回転し、ワーク11a ，11b の外周を転がる。図１
において、実線は、３角形状に歪みやすい大径のワーク
11a の真円度測定時を示しており、鎖線は、４角形状に
歪みやすい小径のワーク11b の真円度測定時を示してい
る。そして、図示のように、内側の取付孔4a，4b，4cに
ピン６を取付けて測定するときには、これらピン６の接
触点におけるワーク11a の接線のなす角度が90°になっ
て、90°の３点法になる。一方、外側の取付孔5a，5b，
5cにピン６を取付けて測定するときには、これらピン６
の接触点におけるワーク11b の接線のなす角度が60°に
なって、60°の３点法になる。このように、同一の測定
治具において、60°の３点法および90°の３点法をとも
に行えるので、３角形状に歪みやすいワーク11a に対し
ても、４角形状に歪みやすいワーク11b に対しても、的
確に真円度測定ができる。これとともに、両角度につい
てそれぞれ、３対の取付孔4a，4b，4c，5a，5b，5cがあ
るので、３通りの径のワーク11a ，11b に対して真円度
測定ができる。Then, on the surface of the substrate 1, the works 11a, 11
Place b on the outer circumference of the workpieces 11a and 11b, and
Workpieces 11a, 11b in contact with the carbide tip 8 of
Is rotated, and the contact 3 of the dial gauge 2 is made to follow the outer circumference of the works 11a and 11b. In the meantime, in multiple places,
The value indicated by the dial gauge 2 is read, and based on this reading, the roundness is obtained as the moving distance of the contactor 3. The carbide tip 8 of the pin 6 rotates as the workpieces 11a and 11b rotate, and rolls on the outer circumference of the workpieces 11a and 11b. Figure 1
In the figure, the solid line indicates a large-diameter workpiece that is easily distorted into a triangular shape.
11a shows the roundness measurement time, and the chain line shows the roundness measurement of a small-diameter workpiece 11b that is easily distorted into a square shape. Then, as shown in the figure, when the pins 6 are mounted in the inner mounting holes 4a, 4b, 4c for measurement, the angle formed by the tangent line of the work 11a at the contact point of these pins 6 becomes 90 °, It becomes a three-point method. On the other hand, the outer mounting holes 5a, 5b,
When pin 6 is attached to 5c for measurement, these pins 6
The angle formed by the tangent line of the work 11b at the contact point of is 60 °, which is a 3-point method of 60 °. In this way, the same measuring jig can perform both the 60 ° 3-point method and the 90 ° 3-point method, so that even if the work 11a is easily distorted into a triangular shape, the work 11b is easily distorted into a rectangular shape. Also, the roundness can be accurately measured. At the same time, since there are three pairs of mounting holes 4a, 4b, 4c, 5a, 5b, 5c for both angles, roundness can be measured for the workpieces 11a, 11b having three different diameters.
【００１４】以上のように、前記実施例の３点法用の真
円度測定治具は、簡便なもので、例えば切削加工の現場
において、工作機械のわきで手軽に使える。そして、１
つの測定治具により、ワークの径や歪みの傾向の違いに
対応できる。しかも、そのために、基板１の複数対の取
付孔4a，4b，4c，5a，5b，5cに一対のピン６を選択的に
取付けるようにしているので、構造が簡単であり、強度
が高いとともに、安定した測定ができ、信頼性が高い。
また、ピン６は、回転自在の超硬チップ８がワークの外
周に接するので、耐磨耗性に優れている。As described above, the roundness measuring jig for the three-point method of the above-mentioned embodiment is simple and can be easily used by the side of a machine tool, for example, at the cutting site. And 1
With two measuring jigs, it is possible to handle differences in work diameter and strain tendency. Moreover, because of this, the pair of pins 6 are selectively mounted in the plurality of pairs of mounting holes 4a, 4b, 4c, 5a, 5b, 5c of the substrate 1, so that the structure is simple and the strength is high. , Stable measurement and high reliability.
Further, the pin 6 has excellent wear resistance because the rotatable carbide tip 8 contacts the outer periphery of the work.
【００１５】図４は、本発明の他の実施例を示すもので
ある。この実施例において、基板16の表面の取付孔17に
着脱自在に取付けられるピン18は、やはり軸体19に円板
状の超硬チップ20を回転自在に組み込んでいる。この超
硬チップ20の周縁部21は、比較的鋭利になっているとと
もに、断面形状が滑らかなほぼ半円状になっている。使
用に際しては、ワーク26の外周面27に超硬チップ20の周
縁部21が接し、ワーク26の回転に伴い、超硬チップ20
は、基板16の表面と直交する軸を中心として回転する。
そして、本実施例においては、超硬チップ20の周縁部21
が比較的鋭利になっているとともに、この周縁部21の断
面形状が滑らかなほぼ半円状になっているので、ワーク
26のテーパーの付いた外周面27でも、確実に接触する。FIG. 4 shows another embodiment of the present invention. In this embodiment, the pin 18, which is removably mounted in the mounting hole 17 on the surface of the substrate 16, has a disc-shaped cemented carbide chip 20 rotatably incorporated in the shaft body 19. The peripheral edge portion 21 of the cemented carbide tip 20 is relatively sharp and has a substantially semicircular shape with a smooth cross-sectional shape. At the time of use, the peripheral edge portion 21 of the carbide tip 20 contacts the outer peripheral surface 27 of the work 26, and as the work 26 rotates, the carbide tip 20
Rotates about an axis orthogonal to the surface of the substrate 16.
Then, in the present embodiment, the peripheral edge portion 21 of the carbide tip 20.
Is relatively sharp, and the cross-sectional shape of this peripheral edge portion 21 is a smooth semi-circular shape,
Even the tapered outer peripheral surface 27 of 26 makes sure contact.
【００１６】なお、本発明は、前記実施例に限定される
ものではなく、種々の変形実施が可能である。例えば、
取付孔の数、取付孔が並んだ直線が基準直線に対してな
す角度、あるいは、原点からの取付孔の距離などは、前
記実施例のものに限らず、使用目的などに応じて、適宜
設定すればよい。The present invention is not limited to the above embodiment, but various modifications can be made. For example,
The number of mounting holes, the angle formed by the straight lines of the mounting holes with respect to the reference straight line, or the distance of the mounting holes from the origin is not limited to those in the above embodiment, but is set appropriately according to the purpose of use. do it.
【００１７】[0017]
【発明の効果】請求項１の発明によれば、基板に長さ計
を設けるとともに、基板の表面に長さ計の測定子の軌跡
を含む基準直線について対称に位置して、ワークの外周
に接する一対のピンが着脱自在に取付けられる複数対の
取付孔を形成し、これら取付孔は、測定子を通り前記基
準直線について対称な複数対の直線上にそれぞれ並べて
形成したので、この直線を選択することにより、ワーク
の３角形状あるいは４角形状などの歪みの傾向の違いに
対応でき、また、測定子から取付孔までの距離を選択す
ることにより、ワークの径の違いに対応できる。しか
も、本測定治具は、手軽に使え、また、構造が簡単であ
って、強度が高いとともに、安定した測定ができ、信頼
性が高い。According to the first aspect of the present invention, the length meter is provided on the substrate, and the surface of the substrate is positioned symmetrically with respect to the reference straight line including the trace of the probe of the length meter, and is located on the outer periphery of the work. A plurality of pairs of mounting holes are formed in which a pair of contacting pins are removably mounted, and these mounting holes are formed side by side on a plurality of pairs of straight lines that are symmetrical with respect to the reference straight line passing through the measuring element. By doing so, it is possible to cope with the difference in the tendency of distortion such as the triangular shape or the quadrangular shape of the work, and it is possible to cope with the difference in the diameter of the work by selecting the distance from the probe to the mounting hole. Moreover, the measuring jig is easy to use, has a simple structure, has high strength, and can perform stable measurement, and is highly reliable.
【００１８】さらに、請求項２の発明によれば、ワーク
の外周に接するピンが、回転自在の円板状の超硬チップ
からなり、この超硬チップの周縁部を滑らかに形成した
ので、ピンの耐磨耗性が高いとともに、外周にテーパー
の付いたワークにも的確に対応できる。Further, according to the second aspect of the present invention, the pin contacting the outer periphery of the work is made of a rotatable disc-shaped cemented carbide tip, and the peripheral edge portion of this cemented carbide tip is formed smoothly. It has high abrasion resistance and can accurately handle workpieces with a tapered outer circumference.
【図１】本発明の真円度測定治具の一実施例を示す正面
図である。FIG. 1 is a front view showing an embodiment of a roundness measuring jig of the present invention.
【図２】同上正面図である。FIG. 2 is a front view of the same.
【図３】同上説明図である。FIG. 3 is an explanatory diagram of the same as above.
【図４】本発明の真円度測定治具の他の実施例を示す断
面図である。FIG. 4 is a sectional view showing another embodiment of the roundness measuring jig of the present invention.
１ 基板 ２ ダイヤルゲージ（長さ計） ３ 測定子 4a，4b，4c，5a，5b，5c 取付孔 ６ ピン ａ 基準直線 m1，m2 基準直線について対称な直線 16 基板 17 取付孔 18 ピン 20 超硬チップ 21 周縁部 1 board 2 dial gauge (length meter) 3 probe 4a, 4b, 4c, 5a, 5b, 5c mounting hole 6 pin a reference straight line m1, m2 straight line symmetrical with reference line 16 board 17 mounting hole 18 pin 20 super hard Edge of chip 21
Claims (2)
表面に沿って直線的に移動する測定子を有する長さ計
と、前記基板の表面で前記測定子の軌跡を含む基準直線
について対称に位置して形成された複数対の取付孔に着
脱自在に取付けられる一対のピンとを備え、前記取付孔
は、前記測定子を通り前記基準直線について対称な複数
対の直線上にそれぞれ並べて形成したことを特徴とする
真円度測定治具。1. A substrate, a length meter having a probe provided on the substrate and moving linearly along a flat surface thereof, and a symmetry on a reference straight line including a trace of the probe on the surface of the substrate. And a pair of pins removably attached to a plurality of pairs of mounting holes formed at positions, the mounting holes being formed side by side on a plurality of pairs of straight lines that are symmetric with respect to the reference straight line passing through the gauge head. A roundness measuring jig characterized in that
軸を中心として回転自在の円板状の超硬チップからな
り、この超硬チップの周縁部を滑らかに形成したことを
特徴とする請求項１記載の真円度測定治具。2. The pin comprises a disc-shaped cemented carbide tip rotatable about an axis orthogonal to the surface of the substrate, and a peripheral portion of the cemented carbide tip is formed smoothly. The roundness measuring jig according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29539392A JPH06185964A (en) | 1992-11-04 | 1992-11-04 | Out-of-roundness measuring jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29539392A JPH06185964A (en) | 1992-11-04 | 1992-11-04 | Out-of-roundness measuring jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06185964A true JPH06185964A (en) | 1994-07-08 |
Family
ID=17820039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29539392A Withdrawn JPH06185964A (en) | 1992-11-04 | 1992-11-04 | Out-of-roundness measuring jig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06185964A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018200293A (en) * | 2017-05-26 | 2018-12-20 | 太平洋セメント株式会社 | Dry shrinkage distortion measurement device, dry shrinkage distortion measurement method, and dry shrinkage distortion estimation method |
| CN113834407A (en) * | 2020-06-23 | 2021-12-24 | 长春市春求科技开发有限公司 | Measure utensil of examining of tooth hub M value |
| CN114646252A (en) * | 2022-03-24 | 2022-06-21 | 宝鸡法士特齿轮有限责任公司 | Device and method for digitally detecting excircle fillet |
| CN117288140A (en) * | 2023-11-21 | 2023-12-26 | 西安交通大学 | Method and system for measuring roundness error of rotary shaft and radial rotary error measuring method |
-
1992
- 1992-11-04 JP JP29539392A patent/JPH06185964A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018200293A (en) * | 2017-05-26 | 2018-12-20 | 太平洋セメント株式会社 | Dry shrinkage distortion measurement device, dry shrinkage distortion measurement method, and dry shrinkage distortion estimation method |
| CN113834407A (en) * | 2020-06-23 | 2021-12-24 | 长春市春求科技开发有限公司 | Measure utensil of examining of tooth hub M value |
| CN114646252A (en) * | 2022-03-24 | 2022-06-21 | 宝鸡法士特齿轮有限责任公司 | Device and method for digitally detecting excircle fillet |
| CN117288140A (en) * | 2023-11-21 | 2023-12-26 | 西安交通大学 | Method and system for measuring roundness error of rotary shaft and radial rotary error measuring method |
| CN117288140B (en) * | 2023-11-21 | 2024-02-20 | 西安交通大学 | Method and system for measuring roundness error of rotary shaft and radial rotary error measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20000104 |