JPH0781822B2 - Non-contact shake measuring apparatus and measuring method for automobile wheel - Google Patents
Non-contact shake measuring apparatus and measuring method for automobile wheelInfo
- Publication number
- JPH0781822B2 JPH0781822B2 JP61288465A JP28846586A JPH0781822B2 JP H0781822 B2 JPH0781822 B2 JP H0781822B2 JP 61288465 A JP61288465 A JP 61288465A JP 28846586 A JP28846586 A JP 28846586A JP H0781822 B2 JPH0781822 B2 JP H0781822B2
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- automobile wheel
- shake
- measuring
- laser light
- 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.)
- Expired - Lifetime
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は自動車用ホイールの横振れ及び縦振れを非接触
により測定する測定装置及び測定方法に関するものであ
る。Description: TECHNICAL FIELD The present invention relates to a measuring device and a measuring method for measuring lateral vibration and longitudinal vibration of an automobile wheel in a non-contact manner.
（従来の技術） 従来、自動車用ホイールの振れ測定装置としては、第５
図に示すように一端に自動車用ホイール４の被測定部に
接触する測定端子12を備えた略Ｌ字状の測定子13を軸14
により揺動自在に配置し、上記測定子13の他端にはリニ
アスケール、ダイヤルゲージ或は差動トランス等の検出
部15の検出端子16を接触させ、さらに上記測定端子12が
自動車用ホイールの被測定部に常時一定の圧力で押し付
けられるよう、測定子13の一部にスプリング17を配置し
て構成されている。(Prior Art) Conventionally, as a vibration measuring device for an automobile wheel,
As shown in the figure, a shaft 14 is provided with a substantially L-shaped probe 13 having a measuring terminal 12 at one end that comes into contact with the measured portion of the automobile wheel 4.
The measuring terminal 13 is brought into contact with a detecting terminal 16 of a detecting portion 15 such as a linear scale, a dial gauge or a differential transformer, and the measuring terminal 12 is an automobile wheel. A spring 17 is arranged in a part of the tracing stylus 13 so that the portion to be measured is constantly pressed with a constant pressure.
上記のように構成された測定装置を用いて自動車用ホイ
ールの横振れ及び縦振れを測定する場合は、回転台上に
回転自在に配置された自動車用ホイールの横振れ、縦振
れの被測定部に測定端子12を接触させ、スプリング17に
より追従に影響のない範囲の力で押し付けながら、自動
車用ホイール４を回転させ、測定子13の移動量を検出端
子16により検出して測定していた。When measuring the lateral shake and vertical shake of a vehicle wheel using the measuring device configured as described above, the lateral shake of the automobile wheel rotatably arranged on the turntable and the measured portion of the vertical shake. The measuring terminal 12 was brought into contact with, and the automobile wheel 4 was rotated while being pressed by the spring 17 with a force in the range that does not affect the tracking, and the moving amount of the probe 13 was detected by the detecting terminal 16 and measured.
（発明が解決しようとする問題点） 上記接触式の振れ測定方法では次のような問題点があつ
た。(Problems to be Solved by the Invention) The above contact-type shake measurement method has the following problems.
イ．測定端子は測定中常に自動車用ホイールに接触して
いるため、測定端子にごみが付着したり、摩耗すると、
測定精度が悪くなるばかりか、測定端子が摩耗しやす
い。I. Since the measuring terminal is always in contact with the automobile wheel during measurement, if dust adheres to the measuring terminal or wears it,
Not only does the measurement accuracy deteriorate, but the measurement terminals are also prone to wear.
ロ．測定子の移動量を検出するリニアスケール、ダイヤ
ルゲージ、差動トランス等は、追従性、応答性が悪く、
振れ測定の速度に限界があつた。B. Linear scales, dial gauges, differential transformers, etc. that detect the amount of movement of the contact point have poor followability and responsiveness.
There was a limit to the speed of shake measurement.
ハ．自動車用ホイールの被測定部に溶接による段差があ
つた場合、段差に当つた衝撃で測定で測定端子に傷が入
つたり、測定データに異状値が出たりした。C. When there was a step due to welding on the measured part of the automobile wheel, the impact on the step caused scratches on the measurement terminals during measurement, and abnormal values appeared in the measurement data.
ニ．測定子は自動車用ホイールの振れに正確に追従でき
るようスプリングで押しつけているが、追従に影響のな
い程度の適当な押圧力を設定するのが困難であり、又、
スプリングの劣化による調整を必要としていた。D. The probe is pressed by a spring so that it can accurately follow the swing of the automobile wheel, but it is difficult to set an appropriate pressing force that does not affect the follow-up, and
Adjustment was required due to deterioration of the spring.
（問題点を解決するための手段） 本考案は上記問題点を解決するためになされたものであ
り、回転台に着脱自在に配置する自動車用ホイールのフ
ランジ部を投影するよう、ホイールの接線方向に対向し
て配設したレーザ発光部および受光部とから成る横振れ
測定部と、自動車用ホイールのビード座部を投影するよ
う、ホイールの接線方向に対向して配設したレーザ発光
部及び受光部とから成る縦振れ測定部と、上記夫々の受
光部において受光したレーザ光の光量の変化量を電気的
に処理し、CTR画面、レコーダ、プリンタ等に記録、表
示する表示機構とを備え、また必要に応じてレーザー発
光部と受光部との間にフランジ部の横方向の一部を覆う
遮閉板を設け、投影の長さの基線を作るようにして自動
車用ホイールの非接触振れ測定装置を構成する。(Means for Solving Problems) The present invention has been made to solve the above problems, and the tangential direction of the wheel is projected so as to project the flange portion of the automobile wheel that is detachably arranged on the rotary table. The lateral shake measuring unit consisting of a laser emitting unit and a light receiving unit disposed opposite to each other, and a laser emitting unit and a light receiving unit disposed in a tangential direction of the wheel so as to project the bead seat portion of the automobile wheel. A vertical shake measuring unit consisting of a unit and a display mechanism for electrically processing the amount of change in the amount of laser light received by each of the light receiving units, and recording and displaying on a CTR screen, recorder, printer, etc. Also, if necessary, a non-contact shake measurement of the automobile wheel can be performed by providing a shielding plate that covers a part of the flange in the lateral direction between the laser emitting part and the light receiving part, and creating a baseline of the projected length. Configure the device To do.
上記のように構成された非接触式の振れ測定装置を用い
て自動車用ホイールの振れを測定する方法としては、回
転台に配置されて回転する自動車用ホイールのフランジ
部、ビード座部に、上記夫々のレーザ発光部から平行な
レーザ光を走査し、上記フランジ部、ビード座部を通過
したレーザ光の影の長さを夫々の受光部で受光すること
によつて影の長さの最大値と最小値を測定し、この測定
値を電気量に変換すると共に、CTR画面、レコーダ、プ
リンタ等の記録、表示部に表示し、ホイールの横振れ
量、縦振れ量の両方又は単独に夫々を検出することを特
徴とする自動車用ホイールの非接触振れ測定方法を提供
するものである。As a method of measuring the shake of the automobile wheel using the non-contact type shake measuring device configured as described above, the flange portion of the automobile wheel that is disposed on the rotating table and rotates, the bead seat portion, The maximum value of the shadow length is obtained by scanning the parallel laser light from the respective laser emitting parts and receiving the length of the shadow of the laser light passing through the flange part and the bead seat part at each light receiving part. And the minimum value is measured, and this measured value is converted into an electric quantity, and is also displayed on the CTR screen, recorder, printer, etc., recording and display unit, and both the lateral shake amount and vertical shake amount of the wheel are displayed individually or individually. The present invention provides a method for measuring non-contact shake of an automobile wheel, which is characterized by detecting.
（作用） 上記のように自動車用ホイールの被測定部を投影できる
よう配置されたレーザ発光部は、平行なレーザ光を走査
し、受光部で上記測定部の影の長さを受光する。(Operation) As described above, the laser emitting section arranged so that the measured section of the automobile wheel can be projected scans the parallel laser light, and the light receiving section receives the length of the shadow of the measuring section.
回転台に配置された自動車用ホイールを回転させること
により、ホイールの円周方向に投影個所がかわり上記ホ
イールの振れ量に従つて影の長さが変化する。この時の
影の長さの最大値と最小値を見つけ出し、その差を求め
ることによつて、非接触によるホイールの振れ量を検出
するものである。By rotating the automobile wheel arranged on the turntable, the projection position changes in the circumferential direction of the wheel, and the length of the shadow changes according to the amount of deflection of the wheel. At this time, the maximum value and the minimum value of the shadow length are found, and the difference between them is found to detect the amount of wheel shake due to non-contact.
（実施例） 以下、本発明の一実施例を図面に基いて説明する。(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.
第１図に示すように１は回転台であり、回転自在に設け
られた回転テーブル２と、ハブ固定治具３とから構成さ
れている。As shown in FIG. 1, reference numeral 1 is a turntable, which is composed of a turntable 2 which is rotatably provided, and a hub fixing jig 3.
なお、回転テーブル２は手動により回転されるか、機械
的、電気的に回転駆動されるよう構成するものである。The rotary table 2 is configured to be manually rotated or mechanically and electrically rotated.
また、４は自動車用ホイールであり、回転テーブル２に
ハブ取付面が密着固定されるように配置され、ハブ固定
治具３により固定される。Reference numeral 4 denotes an automobile wheel, which is arranged on the rotary table 2 so that the hub mounting surface is closely fixed, and is fixed by the hub fixing jig 3.
自動車用ホイールの横振れ測定部は、第２図に示すよう
に、上記のように構成された回転台１に近接して、回転
台１に配置された自動車用ホイール４のフランジ部５を
投影する位置に、レーザ光Ｒがホイール４の接線方向に
走査されるようレーザ発光部６を配置する。As shown in FIG. 2, the lateral shake measuring unit of the automobile wheel projects the flange portion 5 of the automobile wheel 4 arranged on the rotary base 1 in the vicinity of the rotary base 1 configured as described above. The laser light emitting unit 6 is arranged at a position where the laser light R is scanned in the tangential direction of the wheel 4.
上記レーザ発光部６から走査されたレーザ光Ｒを受光す
る受光部７が、ホイール４を挾んでレーザ発光部６に対
向した位置に配置される。A light receiving unit 7 that receives the laser light R scanned by the laser emitting unit 6 is arranged at a position facing the laser emitting unit 6 with the wheel 4 interposed therebetween.
また、８は遮閉板であり、第２図ハに示すようにフラン
ジ部５の横方向の一部を覆うように配置され、横振れの
影の長さの基線Ａ−Ａ′を定めるものである。なお、こ
の遮閉板８は必要に応じて配置すれば良いものである
が、より正確な値を求める場合には効果的である。Further, reference numeral 8 is a shielding plate, which is arranged so as to cover a part of the flange portion 5 in the lateral direction as shown in FIG. 2C and determines a base line AA 'of the length of the shadow of the lateral shake. Is. The shielding plate 8 may be arranged if necessary, but it is effective in obtaining a more accurate value.
次に、自動車用ホイールの縦振れ測定部は、第３図に示
すように、回転台１に近接して、回転台１に配置された
自動車用ホイール４のビード座部９を投影する位置に、
レーザ光Ｒがホイール４の接線方向に走査されるようレ
ーザ発光部10を配置する。Next, as shown in FIG. 3, the vertical deflection measuring unit of the vehicle wheel is located at a position close to the rotary table 1 to project the bead seat portion 9 of the vehicle wheel 4 arranged on the rotary table 1. ,
The laser emitting unit 10 is arranged so that the laser light R is scanned in the tangential direction of the wheel 4.
上記レーザ発光部10から平行に走査されたレーザ光Ｒを
受光する受光部11が、ホイール４を挾んでレーザ発光部
10に対向した位置に配置される。A light receiving section 11 for receiving the laser light R scanned in parallel from the laser emitting section 10 is sandwiched between the wheels 4 and a laser emitting section.
It is placed at a position facing 10.
上記のように構成された回転台１、横振れ測定部及び縦
振れ測定部により自動車用ホイールの非接触振れ測定装
置が形成される。The non-contact shake measuring device for a vehicle wheel is formed by the rotary base 1, the lateral shake measuring unit, and the vertical shake measuring unit configured as described above.
次に、上記非接触振れ測定装置を使用した自動車用ホイ
ールの振れ測定方法において説明する。Next, a method for measuring vibration of an automobile wheel using the non-contact vibration measuring device will be described.
回転台１の回転テーブル２にホイール４を配置する。上
記ホイール４を回転させながら横振れ測定用及び縦振れ
測定用のレーザ発光部6,10から夫々平行なレーザ光Ｒを
走査させる。The wheel 4 is arranged on the turntable 2 of the turntable 1. While the wheel 4 is being rotated, the parallel laser light R is scanned from the laser emission units 6 and 10 for horizontal shake measurement and vertical shake measurement, respectively.
上記レーザ発光部6,10に対向して配置された受光部7,11
がホイール４のフランジ部５及びビード座部９を夫々横
切つて通過したレーザ光Ｒを受光し、この受光した光量
を電気量に変換してCTR画面、レコーダ或いはプリンタ
等に記録または表示するものである。Light receiving parts 7, 11 arranged to face the laser emitting parts 6, 10
Receives the laser light R that has passed through the flange portion 5 and the bead seat portion 9 of the wheel 4, respectively, converts the received light amount into an electric amount, and records or displays it on a CTR screen, recorder, printer, or the like. Is.
このとき、ホイール４は回転しているため、ホイール４
の回転に従つて受光部7,11が受光する影の長さは変化
し、第４図に示すようにホイール４回転角θに対して振
れの量が影の長さｌとして表示されることになる。At this time, since the wheel 4 is rotating, the wheel 4
The length of the shadow received by the light-receiving units 7 and 11 changes according to the rotation of, and the amount of shake is displayed as the shadow length l with respect to the rotation angle θ of the wheel 4 as shown in FIG. become.
上記影の長さｌの最大値l1と最小値l2の差がホイールの
振れとして測定できる。The difference between the maximum value l 1 and the minimum value l 2 of the shadow length l can be measured as the deflection of the wheel.
ところで、上記実施例では、横振れ及び縦振れの両方を
測定したが、いずれか一方を単独又は順次測定すること
も可能である。また測定箇所は、ホイールの軸線と平行
で、対向する位置において測定するようなこともあり、
この場合より精密なデータが得られる。By the way, in the above-mentioned embodiment, both the horizontal shake and the vertical shake were measured, but it is also possible to measure either one alone or sequentially. In addition, the measurement point is parallel to the axis of the wheel, and it may be measured at the opposite position,
In this case, more precise data can be obtained.
（発明の効果） 本発明は上記のようにレーザ光を用いて自動車用ホイー
ルの振れを非接触で測定するよう構成されているため、
測定子が不要となり、ごみの付着、測定子の摩耗等によ
る測定誤差がなくなり、測定精度が向上する。しかも、
測定における追従性、応答性がレーザ光を用いることに
より倍速され、高速測定が可能となり、生産性が大巾に
向上する。さらに、測定子の破損や振動がなくなるので
安定した測定が可能となる等優れた効果を有する発明で
ある。(Effect of the invention) Since the present invention is configured to measure the vibration of the automobile wheel in a non-contact manner using the laser light as described above,
The measuring element is no longer required, and the measurement error due to dust adhesion, wear of the measuring element, etc. is eliminated, and the measurement accuracy is improved. Moreover,
The followability and response in measurement are doubled by using laser light, high-speed measurement becomes possible, and productivity is greatly improved. Further, the invention has an excellent effect such that stable measurement is possible because the measuring element is free from damage and vibration.
第１図は本発明の測定装置に用いられる自動車用ホイー
ルの回転台の一実施例を示す一部破断正面図、第２図は
本発明の横振れ測定装置の一実施例を示し、（イ）は一
部破断平面図、（ロ）は一部破断正面図、（ハ）は要部
拡大図、第３図は本発明の縦振れ測定装置の一実施例を
示し、（イ）は一部破断平面図、（ロ）は一部破断正面
図、第４図は本発明の測定方法により得られた影の変化
を示すグラフ、第５図は従来の縦振れ測定装置を示す説
明図である。 １……回転台、２……回転テーブル、３……ハブ固定治
具、４……自動車用ホイール、５……フランジ部、6,10
……レーザ発光部、7,11……受光部、８……遮閉板、９
……ビード座部、12……測定端子、13……測定子、14…
…軸、15……検出部、16……検出端子、17……スプリン
グ。FIG. 1 is a partially cutaway front view showing an embodiment of an automobile wheel turntable used in the measuring apparatus of the present invention, and FIG. 2 shows an embodiment of the lateral shake measuring apparatus of the present invention. ) Is a partially broken plan view, (b) is a partially broken front view, (c) is an enlarged view of a main part, FIG. 3 shows an embodiment of the vertical shake measuring device of the present invention, and (a) shows one Partly broken plan view, (b) is a partially broken front view, FIG. 4 is a graph showing changes in shadows obtained by the measuring method of the present invention, and FIG. 5 is an explanatory view showing a conventional vertical shake measuring device. is there. 1 ... Rotary base, 2 ... Rotary table, 3 ... Hub fixing jig, 4 ... Automobile wheel, 5 ... Flange part, 6,10
...... Laser emitting part, 7,11 ・ ・ ・ Receiving part, 8 ・ ・ ・ Shield plate, 9
...... Bead seat, 12 ...... Measurement terminal, 13 ...... Stylus, 14 ...
… Axis, 15 …… Detecting part, 16 …… Detecting terminal, 17 …… Spring.
Claims (3)
ールのフランジ部を投影するよう、ホイールの接線方向
に対向して配設したレーザ発光部および受光部とから成
る横振れ測定部と、自動車用ホイールのビード座部を投
影するよう、ホイールの接線方向に対向して配設したレ
ーザ発光部および受光部とから成る縦振れ測定部と、上
記受光部により受光したレーザ光の変化量を電気的に処
理し、表示する表示機構とを備えたことを特徴とする自
動車用ホイールの非接触振れ測定装置。1. A lateral shake measuring section comprising a laser emitting section and a light receiving section which are arranged so as to face each other in a tangential direction of the wheel so as to project a flange section of an automobile wheel which is detachably arranged on a rotary table. A vertical shake measuring unit consisting of a laser emitting unit and a light receiving unit which are arranged so as to face each other in the tangential direction of the wheel so as to project the bead seat of an automobile wheel, and the change amount of the laser light received by the light receiving unit. A non-contact shake measuring device for an automobile wheel, comprising a display mechanism for electrically processing and displaying.
するレーザ発光部と受光部との間に、フランジ部の横方
向の一部を覆う遮閉板を設け、投影の長さの基線を作る
ようにした特許請求の範囲第１項記載の自動車用ホイー
ルの非接触振れ測定装置。2. A shielding plate which covers a part of the flange portion in the lateral direction is provided between the laser light emitting portion projecting the flange portion of the automobile wheel and the light receiving portion to form a projection length baseline. The non-contact shake measuring device for an automobile wheel according to claim 1.
ールのフランジ部、ビード座部に夫々平行なレーザ光を
走査し、上記フランジ部、ビード座部を通過したレーザ
光の影の長さを受光することにより、影の長さの最大値
と最小値を測定し、この測定値を電気量に変換してCTR
画面、レコーダ、プリンタ等の記録、表示部に表示して
ホイールの横振れ量、縦振れ量の両方又は単独に夫々を
検出することを特徴とする自動車用ホイールの非接触振
れ測定方法。3. The length of the shadow of the laser light that has passed through the flange portion and the bead seat portion by scanning laser light parallel to the flange portion and the bead seat portion of a vehicle wheel that is arranged on a rotary base and rotates. The maximum and minimum values of the shadow length are measured by receiving the
A method for measuring non-contact vibration of a vehicle wheel, comprising: recording on a screen, a recorder, a printer, etc., and displaying on a display unit to detect the lateral shake amount, the vertical shake amount, or both of them individually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61288465A JPH0781822B2 (en) | 1986-12-03 | 1986-12-03 | Non-contact shake measuring apparatus and measuring method for automobile wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61288465A JPH0781822B2 (en) | 1986-12-03 | 1986-12-03 | Non-contact shake measuring apparatus and measuring method for automobile wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63140902A JPS63140902A (en) | 1988-06-13 |
| JPH0781822B2 true JPH0781822B2 (en) | 1995-09-06 |
Family
ID=17730557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61288465A Expired - Lifetime JPH0781822B2 (en) | 1986-12-03 | 1986-12-03 | Non-contact shake measuring apparatus and measuring method for automobile wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0781822B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT511200B1 (en) * | 2011-10-20 | 2012-10-15 | Isiqiri Interface Tech Gmbh | REAL TIME MEASUREMENT OF RELATIVE POSITION DATA AND / OR GEOMETRIC MASSES OF A MOVING BODY USING OPTICAL MEASURING AGENTS |
-
1986
- 1986-12-03 JP JP61288465A patent/JPH0781822B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63140902A (en) | 1988-06-13 |
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