WO2004104515A1 - Vorrichtung zum vermessen der geometrie einer radachse eines kraftfahrzeuges - Google Patents
Vorrichtung zum vermessen der geometrie einer radachse eines kraftfahrzeuges Download PDFInfo
- Publication number
- WO2004104515A1 WO2004104515A1 PCT/DE2004/001062 DE2004001062W WO2004104515A1 WO 2004104515 A1 WO2004104515 A1 WO 2004104515A1 DE 2004001062 W DE2004001062 W DE 2004001062W WO 2004104515 A1 WO2004104515 A1 WO 2004104515A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chuck
- hub
- measuring
- wheel axle
- geometry
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
- G01B5/255—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes for testing wheel alignment
Definitions
- the present invention relates to a device for measuring the geometry of a wheel axle of a motor vehicle by means of at least one, preferably three measuring sensors, the wheel axle having either a hub or a hub and a brake disk.
- a device for measuring and adjusting the toe and / or camber angle of an axle of a motor vehicle in which the hub of the axle is held in a chuck.
- the chuck is rotatably mounted in a housing, while the housing itself is pivotally mounted about a horizontal axis.
- the entire device in turn is kept floating, so that the device can be aligned three-dimensionally in accordance with the current track and / or camber angle of the axis to be measured.
- a stop surface is prepared against which the respective measuring sensors can rest in order to measure the geometry of the axis.
- the present invention is based on the object of creating a device for measuring the geometry of wheel axles with which the actual conditions on the hub and / or brake disk of the axle can be detected more precisely.
- a device designed according to this technical teaching has the advantage that the use of an electric drive means that the pneumatic drive known for example from EP 1 128 157 A 1 can be dispensed with. This also eliminates the compressed air-carrying hoses and other components, with the result that the entire device can be made much smaller.
- Another advantage is that there is no need to feed a medium into the rotating components, so that rotating unions are no longer required and thus possible leaks and other problems cannot occur.
- both the chuck can be rotated with a single electric drive and the jaws can be actuated with it.
- the entire hub gripper can thus be driven by a single electric motor, which further contributes to reducing the size.
- an electrical clutch is used, which switches between gripping and rotating movement and is also actuated by the electric drive. This also makes a contribution to reducing the size.
- the clamping jaws are moved radially via a link control, which in turn can be actuated via the electric drive.
- this link control the clamping jaws can apply appropriate forces to the component to be held exercise and still be small and compact. It has proven to be advantageous to design the link control to be self-locking.
- the clamping jaws are moved radially via a spiral control, which can also be actuated via the electric drive.
- a spiral control By using this spiral control, the jaws are guided with less friction, so that tilting is avoided.
- the clamping jaws can cover a larger radial distance due to the spiral control, so that larger hubs can be clamped.
- the measurement sensors come to rest directly on the hub or brake disc.
- the sensors do not carry out an indirect measurement, but rather a direct measurement according to the invention.
- This has the advantage that the direct acquisition of the data on the hub and / or on the brake disk records the geometric data in an unadulterated manner, which leads to a much more precise measurement result.
- the direct measurement of the wheel axle on its hub and / or brake disc also has the advantage that the measured values are collected directly from the wheel axle and that measurement errors are avoided, which can occur, for example, when the hub gripper is docked improperly on the wheel axle. Furthermore, any measurement errors that occur, for example, due to manufacturing-related tolerances on components are avoided, since no foreign components are involved in the measurement, because the measurement takes place directly on the wheel axle.
- the measurement sensors are essentially arranged next to the hub gripper. This has the advantage that the sensors can be brought to the respective measuring points on the hub or on the brake disk in a simple manner. It has proven to be advantageous to move the sensors in the longitudinal direction so that the sensors are not accidentally damaged by the hub gripper during the detection and release of the axle.
- FIG. 1 and 2 show a device according to the invention for measuring the geometry of wheel axles of a motor vehicle, in particular for measuring the toe and / or camber angle.
- This device is used for the automated measurement of industrially manufactured wheel axles. This means that in the series production of new wheel axles for motor vehicles, the respective camber and toe angles are only roughly preset during the assembly of the individual components. For more precise adjustment of the camber and toe angle, the wheel axle is positioned at a defined position on the assembly line and the device for measuring the geometry of the wheel axle is guided automatically to the hub of the wheel axle. The determination of the toe and camber values is advantageously carried out taking into account the flattening of the hub or the brake disc. If necessary, a second device for measuring the geometry of the wheel axle can be brought up to the second wheel hub at the same time, so that both sides of the axle can be measured and adjusted at the same time.
- the device for measuring the geometry of wheel axles of a motor vehicle shown in FIGS. 1 and 2 comprises a receptacle 10 which is floatingly mounted on a stand (not shown here) and which is articulated by a vertically oriented swivel joint 12 to a substantially U-shaped holding arm 14 is.
- a hub gripper 20 is attached to two legs 16, 18 of the holding arm 14.
- the hub gripper 20 is held in the holding arm 14 in a horizontally pivotable manner, a pivot axis 22 crossing a longitudinal axis 24 of the hub gripper 20.
- the pivot axis 22 runs through the force introduction plane of the clamping jaws 32, 34, 36. This enables a moment-free application of force.
- the hub gripper 20 comprises a body 26 which is pivotally attached to the legs 16, 18 of the holding arm 14 via support arms 28, 30.
- three clamping jaws 32, 34, 36 are arranged equidistantly around the longitudinal axis 24 and are mounted so as to be radially displaceable.
- the jaws 32, 34, 36 are displaced radially via a link control 38 and can thus grip and hold the hub.
- the link control comprises a guide disk 40 with three equidistantly arranged, radially running slots 42, 44, 46 and one
- Eccentric disc 48 with three curved elongated holes 50, 52, 54, one end of the elongated holes 50, 52, 54 being arranged comparatively close to the longitudinal axis 24, while the distance from the longitudinal axis 24 to the other end of the respective elongated hole increases.
- the elongated holes 50, 52, 54 are arranged eccentrically around the longitudinal axis 24 in such a way that a self-locking is achieved at the clamping point.
- a clamping jaw 32, 34, 36 is assigned a specific slot 42, 44, 46 and a specific elongated hole 50, 52, 54, each clamping jaw 32, 34, 36 through the slot 42, 44, 46 assigned here extends into the corresponding elongated hole 50, 52, 54, so that when the eccentric disk 48 is rotated accordingly, the
- Clamping jaws 32, 34, 36 can be moved evenly radially outwards or inwards and can thus grip and hold the hub.
- the link control 38 and in particular the eccentric disk 48, is driven by a servo motor (not shown here).
- the chuck 56 including the clamping jaws 32, 34, 36 and the link control 38 is also rotated about the longitudinal axis 24 by this servo motor, in particular in order to be able to carry out a runout measurement on the wheel axis.
- a switchable coupling not shown here, which is also driven by the servo motor.
- the servo motor is able to reproduce the current angular position of the chuck and thus also the current control position of the axis or hub, so that any imbalance that may occur can be precisely located, for example, during a runout measurement.
- the link control 38 is designed to be self-locking in order to prevent the clamping jaws 32, 34, 36 from slipping.
- the link control 38 By using the link control 38 to actuate the chuck 56, it is possible to make the hub gripper so small that the outer diameter of the body 26 of the hub gripper 20 is smaller than the outer diameter of a hub of the wheel axle to be measured.
- the measurement sensors 58, 60, 62 required for the measurement can be attached next to the body 26 and can nevertheless directly access the hub.
- the setting control of the chuck is replaced by a spiral control 70 the eccentric disc 72 has a groove 74 in the form of an Archimedes spiral, with drivers attached to the rear of the clamping jaws 76, 78, 80 extending through the slots 42, 44, 46 of the guide disc 40 into the groove 74 of the eccentric disc 72, so that the Clamping jaws 76, 78, 80 are displaced radially when the eccentric disk 72 rotates.
- the drivers of the clamping jaws 76, 78, 80 are arranged offset such that all clamping jaws 76, 78, 80 are always at the same distance from the longitudinal axis 24, even if the individual clamping jaws 76, 78, 80 are different Engage places in the spiral groove 74.
- the hub gripper is roughly brought into the position of one wheel hub.
- the hub gripper 20 is pivotable both about a vertical and a horizontal axis, so that the hub gripper 20 can grip the hub in such a way that the longitudinal axis 24 of the hub gripper 20 is aligned with the central axis of the hub.
- the clamping jaws 32, 34, 36 of the chuck 56 are actuated.
- a clutch (not shown here) is switched in order to connect the servo motor directly to the chuck 56 and then the servo motor rotates the eccentric disk 48, so that via the elongated holes 50, 52, 54 in connection with the slots 40, 42, 46 the clamping jaws 32, 34, 36 are moved towards the longitudinal axis 24 and grip the hub. Since the link control 38 is designed to be self-locking, the clamping jaws 32, 34, 36 now remain in their position and reliably hold the hub of the wheel axle. Now the clutch is switched over and the servo motor rotates the chuck 56 about the longitudinal axis 24 and also rotates the hub. Now the measuring sensors 58, 60, 62 are moved out until they come into contact with the hub and can measure them. The measurement is carried out taking into account the planned calculation. After completing the measurement, the whole procedure is carried out in reverse and the chuck separates from the hub so that the next wheel axle can be positioned to be measured.
- a brake disc can also be present on the wheel axle and that, if necessary, the measuring sensors can be guided in an analogous manner to the brake disk in order to measure the wheel axle via the brake disk.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Body Structure For Vehicles (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/557,235 US7337548B2 (en) | 2003-05-20 | 2004-05-14 | Device for measuring the geometry of a wheel axle of a motor vehicle |
DE112004000875T DE112004000875B4 (de) | 2003-05-20 | 2004-05-19 | Vorrichtung zum Vermessen der Geometrie einer Radachse eines Kraftfahrzeuges |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10322643A DE10322643A1 (de) | 2003-05-20 | 2003-05-20 | Verfahren und Vorrichtung zum Vermessen der Geometrie von Radachsen eines Kraftfahrzeuges |
DE10322643.5 | 2003-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004104515A1 true WO2004104515A1 (de) | 2004-12-02 |
Family
ID=33461823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2004/001062 WO2004104515A1 (de) | 2003-05-20 | 2004-05-19 | Vorrichtung zum vermessen der geometrie einer radachse eines kraftfahrzeuges |
Country Status (3)
Country | Link |
---|---|
US (1) | US7337548B2 (de) |
DE (2) | DE10322643A1 (de) |
WO (1) | WO2004104515A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107175971A (zh) * | 2017-06-22 | 2017-09-19 | 三木控股集团有限公司 | 一种削笔机的夹笔机构 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005029575A1 (de) * | 2005-06-25 | 2006-12-28 | Nmh Gmbh + Co. Kg | Vorrichtung zur Bestimmung der Geometrie einer Radachse |
DE102015010803A1 (de) | 2015-08-21 | 2017-02-23 | AuE Kassel GmbH | Vorrichtung zum Vermessen der Geometrie einer Radachse eines Kraftfahrzeuges |
DE102015010958A1 (de) | 2015-08-24 | 2017-03-02 | AuE Kassel GmbH | Vorrichtung zum Vermessen der Geometrie einer Radachse eines Kraftfahrzeuges und ein Verfahren hierfür |
DE102015010953A1 (de) | 2015-08-24 | 2017-03-02 | AuE Kassel GmbH | Vorrichtung zum Vermessen der Geometrie einer Radachse eines Kraftfahrzeuges |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4918821A (en) * | 1988-07-15 | 1990-04-24 | Nicator Ab | Method of determining wheel alignment |
US5033198A (en) * | 1990-05-01 | 1991-07-23 | Hastings William P | Four-wheel alignment system |
EP1128157A1 (de) * | 2000-02-25 | 2001-08-29 | Schenck Pegasus GmbH | Vorrichtung zur Messung der Geometrie der Radachsen einer Achse eines Fahrzeugs sowie Verwendung der Vorrichtung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3758958A (en) * | 1970-04-28 | 1973-09-18 | Performance Equipment Inc | Wheel aligning apparatus |
US4337932A (en) * | 1980-06-25 | 1982-07-06 | Caterpillar Tractor Co. | Safety device for a workpiece holder |
US5056231A (en) * | 1990-06-01 | 1991-10-15 | Bear Automotive Service Equipment Co. | Apparatus for locking wheel unit in automotive wheel alignment system |
DE4121655A1 (de) * | 1991-06-29 | 1993-01-07 | Hofmann Werkstatt Technik | Radstellungsmessgeraet |
US5242202A (en) * | 1991-12-27 | 1993-09-07 | Fmc Corporation | Plug-in wheel grabber |
TR200002471T2 (tr) * | 1998-02-26 | 2000-12-21 | Haweka Auswuchttechnik Horst Warkotsch Gmbh | Bir taşıt tekerleğinin jantına bir aks ölçme aygıtının takılmasına yarayan cihaz |
JP3895541B2 (ja) * | 2000-12-13 | 2007-03-22 | 本田技研工業株式会社 | ホイールアライメント測定方法及び同測定装置 |
DE10322644A1 (de) * | 2003-05-20 | 2004-12-23 | A U E Automations-Und Einstellungstechnik Kassel Gmbh | Vorrichtung und Verfahren zum Vermessen der Geometrie einer Radachse eines Kraftfahrzeuges |
US7117603B1 (en) * | 2004-08-03 | 2006-10-10 | Pellegrino Dean S | Mounting system for mounting an alignment instrument on a vehicular wheel that uses any known lug bolt pattern |
ITRE20040137A1 (it) * | 2004-11-11 | 2005-02-11 | Corghi Spa | Staffa di supporto per sensori |
-
2003
- 2003-05-20 DE DE10322643A patent/DE10322643A1/de not_active Withdrawn
-
2004
- 2004-05-14 US US10/557,235 patent/US7337548B2/en not_active Expired - Fee Related
- 2004-05-19 DE DE112004000875T patent/DE112004000875B4/de not_active Expired - Fee Related
- 2004-05-19 WO PCT/DE2004/001062 patent/WO2004104515A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4918821A (en) * | 1988-07-15 | 1990-04-24 | Nicator Ab | Method of determining wheel alignment |
US5033198A (en) * | 1990-05-01 | 1991-07-23 | Hastings William P | Four-wheel alignment system |
EP1128157A1 (de) * | 2000-02-25 | 2001-08-29 | Schenck Pegasus GmbH | Vorrichtung zur Messung der Geometrie der Radachsen einer Achse eines Fahrzeugs sowie Verwendung der Vorrichtung |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107175971A (zh) * | 2017-06-22 | 2017-09-19 | 三木控股集团有限公司 | 一种削笔机的夹笔机构 |
Also Published As
Publication number | Publication date |
---|---|
US20070011892A1 (en) | 2007-01-18 |
US7337548B2 (en) | 2008-03-04 |
DE112004000875B4 (de) | 2009-12-03 |
DE112004000875D2 (de) | 2006-02-09 |
DE10322643A1 (de) | 2004-12-23 |
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