Detection rack unit for windscreen wiper system
By designing a detection bench unit with a spherical joint and a three-dimensional force sensor, the problem of difficulty in matching different positions and test systems in the prior art is solved, and more efficient testing and longer detection bench operation time is achieved.
Patent Information
- Application Number
- CN202411452267.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-10-20
- Filing Date
- 2024-10-17
- Publication Date
- 2025-04-22
AI Technical Summary
The prior art is difficult to effectively match the needs of different locations and test systems, resulting in increased testing consumption and it is difficult to quickly replace and replace defective sub-components, affecting the operating time of the detection mount.
A detection rig unit is designed, including an orientation unit and a fixing unit, which has a spherical joint, allowing the fixing unit to be displaced on at least three axes, and equipped with a three-dimensional force sensor to measure the force of the test system. The detection bench unit achieves rapid replacement and replacement through a modular structure and a detachable connection.
Through this design, the inspection bench unit can be easier to match different locations and test systems, reduce test consumption, and significantly increase the operation time of the inspection bench. At the same time, the three-dimensional force sensor can accurately measure the load condition of the test system.
Smart Images
Figure CN119860924A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a detection bench unit for a wiper system and a detection bench for a wiper system. Background Art
[0002] There are currently a number of different solutions for measuring the forces in wiper systems. Due to the increasing number of wiper systems in the vehicle sector and the increasing requirements placed on them, the need for innovative and robust systems for determining the wiper forces is increasing.
[0003] The continuous reduction in weight in order to reduce consumption and increasing competition in the vehicle sector are leading to cost pressures and therefore a significant increase in the demand for cheaper and more efficient vehicle components. Summary of the invention
[0004] The test bench unit according to the invention for testing systems, in particular wiper systems, air conditioning systems, sliding roof systems and / or similar systems, having the features of claim 1, has the following advantages over known test bench units: The test bench unit according to the invention can be adapted more easily to different locations and test systems. The testing effort is thus reduced. In addition, preferably, the monitoring of the test system can also be better adapted to the coordinate system of the test bench by means of simplified position changes. In addition, preferably, due to the modular construction of the test bench unit, defective subcomponents can be easily replaced, so that the operating time of the test bench or the test bench unit can be significantly increased.
[0005] According to the invention, this is achieved in that a test bench unit for the test system mentioned has an orientation unit and a fixing unit. The orientation unit can be arranged at the test bench. The fixing unit can also be connected to the test system. The orientation unit has a ball joint part, wherein the ball joint part is designed to enable the fixing unit to be displaced relative to the orientation unit about at least three axes, wherein the fixing unit has a three-dimensional force sensor, which is designed to measure at least one force from the test system, in particular during operation.
[0006] In other words, the three-dimensional force sensor can be arranged relative to the test system by means of the spherical part so that in particular the connection point of the test system can be oriented substantially parallel to at least one axis of the three-dimensional force sensor, so that the load conditions at the test system, more precisely at the connection point of the test system, can thus be accurately determined. Here, the test bench unit can have an orientation unit, which can be flexibly arranged at the test bench by means of a threaded connection or the like. In addition, the test bench unit can have a fixing unit, which can be connected to the mentioned test system or the connection node of the test system, for example, by means of a plug-in connection and / or a threaded connection or the like. In addition, the orientation unit has a spherical joint part, which is, for example, a spherical joint part or a spherical joint head that can be engaged at a corresponding recess at the fixing unit. In addition, preferably, the orientation unit can be displaced relative to the fixing unit at least in three axes by means of the spherical joint part, so that the fixing unit can be oriented accordingly relative to the mentioned test system, more precisely the connection node. In addition, preferably, a three-dimensional force sensor can be arranged at the fixing unit, which is set up to measure at least one force from the test system, in particular during the operation or test operation of the mentioned test system or the like. The test bench unit can preferably be used for a wiper system, an air conditioning system and / or a sliding roof system.
[0007] The dependent claims reveal preferred developments of the invention.
[0008] The sample holder can preferably be arranged exchangeably on the fastening unit in order to adapt the test stand unit to the aforementioned test system.
[0009] The advantage of this embodiment is that a rapid exchange between different test systems of the same type (e.g. different windshield wiper systems) or between different test systems of different types (e.g. between a windshield wiper system and a sliding roof system to be tested subsequently) can be achieved with the aid of the sample holder. In this case, the sample holder can be detachably arranged on the fixing unit, in particular by means of a plug connection and / or a screw connection or the like.
[0010] Furthermore, the alignment unit preferably has a fastening element which is designed to fasten the alignment unit to the test stand.
[0011] This embodiment has the advantage that the orientation unit or the ball or the like can be exchanged more quickly via the fixing element, since the fixing element can be firmly anchored to the test stand, wherein the orientation unit can be arranged on the fixing element via a quickly detachable connection.
[0012] Preferably, the fixing element is designed to displace the orientation unit along a first displacement direction which is oriented substantially orthogonal to a mounting plane of the fixing element, wherein the fixing element is designed to displace the orientation unit about an axis oriented substantially parallel to the mounting plane.
[0013] The advantage of this embodiment is that an additional degree of freedom can be provided by the fixing element, so that the test bench unit can be more easily adapted to the test system mentioned. In particular, the preparation effort can be significantly reduced as a large number of identical or different test systems of the same or different types can be checked or tested with one test unit. In this case, the mounting plane can be oriented in particular parallel to the installation plane on the test bench. In this context, "substantially" means in particular deviations of ±45°, in particular manufacturing-related tolerances.
[0014] Furthermore, the fixing element is preferably designed to enable a displacement of the orientation unit along a second displacement direction, which is oriented substantially orthogonally to the first displacement direction.
[0015] An advantage of this embodiment is that stresses in the test system can be reduced, since possible stresses can be reduced after the test system has been assembled at the test bench by means of a second displacement which is arranged orthogonally to the first displacement direction.
[0016] Furthermore, the test carriage unit preferably has a further fixing element, wherein the fixing element and the further fixing element are designed to fix the orientation unit in a positionally fixed manner by means of a press fit.
[0017] An advantage of this embodiment is that any correction of the orientation unit, in particular in the first and second displacement directions and / or about an axis, can be corrected quickly by disassembling or loosening the press fit and thus also the preparation time can be reduced. For example, the connection node of the test system can already be connected to the specimen holder, so that if the orientation unit cannot be matched to the fixing element by means of another fixing element and loosening the press fit, the test system should be loosened again.
[0018] Furthermore, the alignment unit and the fastening unit preferably have at least one exchange element, wherein the exchange element is designed to exchange the ball joint part and / or the fastening unit.
[0019] The advantage of this embodiment is that if the wear at the ball joint part becomes too great or the play is too great, the ball joint part can be replaced by simply operating the exchange element. Here, in particular, the entire ball joint part, more precisely the ball joint bearing and / or the ball head fixed on the orientation unit place can be replaced.
[0020] A further aspect of the invention relates to a test bench for testing a system, in particular a wiper system, an air conditioning system and / or a sliding roof system, which test bench has a test bench unit as described above and below.
[0021] The advantage of this embodiment is that, by means of the test bench unit as described above and below, the preparation time of the test bench is significantly reduced and the test bench can also be matched more flexibly to the respective test system mentioned.
[0022] Furthermore, the test bench preferably has three test bench units as described above and below, which are arranged in a predetermined pattern, wherein the predetermined pattern is matched to a coordinate system of the test bench.
[0023] This embodiment has the advantage that if the test bench, or more precisely the measuring region of the test bench, is associated with a coordinate system, the test bench unit can be adapted to the corresponding coordinate system by means of a predetermined configuration.
[0024] Preferably, the control unit of the test bench is set up to create a three-dimensional force image of the test system by means of three three-dimensional force sensors at the test bench units as described above and below, respectively.
[0025] The advantage of this embodiment is that, due to the predetermined orientation of the three force sensors with respect to each other and the known orientation of the orientation point, the aforementioned test system can integrate the individual forces recorded by the force sensors into a three-dimensional force image of the generated forces via a control unit, so that the load conditions of the test system can thus be determined as accurately as possible. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the accompanying drawings:
[0027] Figures 1 to 3 shows a detection bench unit according to an embodiment,
[0028] Figure 4 and Figure 5 A detection bench according to an embodiment is shown. DETAILED DESCRIPTION
[0029] Preferably, all identical components, units and / or elements are provided with the same reference signs in all figures.
[0030] Figure 1A test bench unit 10 for a wiper system 200 according to an embodiment is shown. A test bench unit for a wiper system (as a test system to be tested) is described below, which is only exemplary. The description applies in a substantially identical manner to, in particular, an air conditioning system and / or a sliding sunroof system. Here, the test bench unit 10 comprises an orientation unit 12 and a fixing unit 14. Here, the orientation unit 12 can be arranged at the test bench 100 by a fixing element 22 and / or another fixing element 32. In addition, preferably, the test bench unit 10 has a ball joint portion 16, which arranges the orientation unit 12 to be displaceable relative to the fixing unit 14 around at least three axes. Here, the fixing unit 14 can have a three-dimensional force sensor 18, which is set up to measure at least one force from the wiper system 200. In addition, preferably, the fixing unit 14 has a sample holder 20. In addition, the fixing element 22 can be set up to enable the orientation unit 12 to be displaced along a first displacement direction 24, which is oriented orthogonally to the assembly plane 26. Here, the assembly plane 26 is substantially parallel to the erection plane of the test stand. Figure 1 In addition, preferably, the fixing element 22 is configured to enable the orientation unit 12 to be oriented about an axis 28, which is arranged substantially parallel to the assembly plane 26. In addition, preferably, the fixing element 22 is configured to enable the orientation unit 12 to be displaced along a second displacement direction 30, wherein the second displacement direction 30 is arranged substantially orthogonal to the first displacement direction 24, as shown. Figure 1 Furthermore, the test bench unit 10 preferably comprises a further fixing element 32 which is configured to form a press fit with the fixing element 22, for example by a threaded connection, so that the orientation unit can be fixed relative to the fixing element 22 in a positionally fixed manner.
[0031] Figure 2 A detection bench unit 10 according to an embodiment is shown. Here, the detection bench unit 10 comprises an orientation unit 12 and a fixing unit 14. A three-dimensional force sensor 18 is arranged at the fixing unit 14. In addition, preferably, the orientation unit 12 has a spherical joint portion 16 (e.g. a ball head), which engages in a corresponding recess at the fixing unit 14. In addition, preferably, the orientation unit 12 and the fixing unit 14 have a replacement element 34 so that the connection between the orientation unit 12 and the fixing element 14 can be disassembled, for example, so as to replace the element. For example, the replacement element 34 at the orientation unit 12 can be designed as a plug-in connection portion, so as to fix, for example, a ball head of the spherical joint portion 16. In addition, preferably, the replacement element 34 at the fixing unit 14 can be designed so that the recess is detachable, so that the fixing unit 14 is arranged at the ball head of the spherical joint portion 16.
[0032] Figure 3An embodiment of a detection bench unit 10 is shown. Here, the detection bench unit 10 comprises an orientation unit 12 and a fixing unit 14. Here, a spherical joint portion 16 is arranged at the orientation unit 12 so that the fixing unit 14 can be displaced relative to the orientation unit 12 along at least three axes. Here, the detection bench unit 10 has a first fixing element 22 and a further fixing element 32, which can form a press fit relative to the orientation unit 12, for example, by a threaded connection. In the case where the press fit is loosened or disassembled, the orientation unit 12 can be oriented relative to the fixing element 22 along the first displacement direction 24, the second displacement direction 30 and / or the axis 28, so that the detection bench unit 10 can thus match the corresponding wiper system 200. In addition, preferably, the orientation unit 12 and the fixing unit 14 have at least one exchange element 34, so that, for example, the spherical portion 16 and / or the fixing unit 14 can be replaced.
[0033] Figure 4 1 shows a test bench 100 according to an embodiment. Here, the test bench 100 has a test bench unit 10 as described above or below. Figure 4 As shown, the test bench 100 comprises three test bench units 10 as described above and below. However, it is also possible to use fewer or more than three test bench units 10 in the test bench and thus to adapt to specific test situations or test situations. With the aid of the test bench units 10, the wiper system 200 is arranged at the test bench 100. With the aid of three three-dimensional force sensors 18, which are respectively arranged at one of the three test bench units 10, a three-dimensional force image of the wiper system 200 can be generated with the aid of the test bench 100.
[0034] Figure 5 A test bench 100 is shown, which has a test bench unit 10 as described above and below and a control unit 102. The control unit 102 can be designed in particular to create a three-dimensional force image of the wiper system 200 using each of the three-dimensional force sensors 18 of the three test bench units 10.
Claims
1. A test bench unit (10) for testing a system (200), in particular a windshield wiper system, an air conditioning system, a sliding roof system and / or a similar system, the test bench unit comprising: an orientation unit (12), which can be arranged on the test stand (100), - a fixing unit (14), which can be connected to the test system (200), in, The orientation unit (12) has a spherical joint part (16), wherein the spherical joint part (16) is configured to enable the fixing unit (14) to be displaced relative to the orientation unit (12) around at least three axes, wherein the fixing unit (14) has a three-dimensional force sensor (18) configured to measure at least one force from the test system (200).
2. The detection bench unit (10) according to claim 1, wherein: A sample holder (20) can be arranged replaceably on the fastening unit (14) in order to adapt the test bench unit (10) to the test system (200).
3. A test bench unit (10) according to any one of the preceding claims, wherein: The orientation unit (12) has a fastening element (22) which is designed to fasten the orientation unit (12) to the test bench (100).
4. The detection bench unit (10) according to claim 3, wherein: The fixing element (22) is configured to enable the orientation unit (12) to be displaced along a first displacement direction (24), which is oriented substantially orthogonal to an assembly plane (26) of the fixing element (22), wherein the fixing element (22) is configured to enable the orientation unit (12) to be displaced about an axis (28) substantially parallel to the assembly plane (26).
5. The detection bench unit (10) according to claim 4, wherein: The fixing element (22) is designed to enable the orientation unit (12) to be displaced along a second displacement direction (30), which is oriented substantially orthogonally to the first displacement direction (24).
6. The detection bench unit (10) according to any one of claims 3 to 5, wherein: The test bench unit (10) has a further fixing element (32), wherein the fixing element (22) and the further fixing element (32) are designed to fix the orientation unit (12) in a positionally fixed manner by means of a press fit.
7. A test bench unit (10) according to any one of the preceding claims, wherein: The orientation unit (12) and the fastening unit (14) have at least one exchange element (34), wherein the exchange element (34) is designed to replace the ball joint part (16) and / or the fastening unit (14).
8. A test bench (100) for a test system (200), comprising at least one test bench unit (10) according to any one of the preceding claims.
9. The detection stand (100) according to claim 8, wherein: The detection bench (100) has three detection bench units (10), which are arranged in a predetermined pattern, wherein the predetermined pattern matches the coordinate system of the detection bench (100).
10. The detection stand (100) according to claim 9, wherein: The control unit (102) of the test bench (100) is configured to create a three-dimensional force image of the test system (200) by means of three test bench units (10), each of which has a three-dimensional force sensor (18).