CN113720588A - Test method for rapidly measuring pressing force and torsion angle of wiper arm - Google Patents
Test method for rapidly measuring pressing force and torsion angle of wiper arm Download PDFInfo
- Publication number
- CN113720588A CN113720588A CN202110837408.4A CN202110837408A CN113720588A CN 113720588 A CN113720588 A CN 113720588A CN 202110837408 A CN202110837408 A CN 202110837408A CN 113720588 A CN113720588 A CN 113720588A
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- China
- Prior art keywords
- wiper arm
- pressing force
- torsion angle
- sliding block
- angle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Abstract
The invention discloses a test method for rapidly measuring the pressing force and torsion angle of a wiper arm, which comprises the following steps: but mobile base, but mobile base's upper portion is provided with mount and fixing base, the inboard upper end that is provided with screw rod and screw rod of mount extends to the mount top and installs the rocker, the surface mounting that the surface of screw rod was provided with sliding block and sliding block has the windscreen wiper arm, and the upper portion of fixing base is provided with pressure sensor. The method comprises the steps of evaluating and auditing the size obtained by modeling the dynamic human body size characteristic through a manual auditing strategy, judging whether the characteristic size is proper or not, comparing results before and after auditing, and giving positive feedback if the size is proper; recording the size and marking a positive feedback coefficient 1 in a characteristic size correction library, and outputting the size; if the characteristic dimension is not suitable, the record negative feedback is given, namely the dimension is recorded in the characteristic dimension correction library and a negative feedback coefficient-1 is marked, so that the correction efficiency of the individual characteristic dimension of the human body is greatly improved.
Description
Technical Field
The invention relates to the technical field of production test of wiper arms, in particular to a test method for rapidly measuring pressing force and torsion angle of wiper arms.
Background
With the development of economy, automobiles gradually enter more and more families, and the safety of the automobiles is also greatly concerned. Especially in rainy day, whether car wiper can in time effectually scrape off the rainwater on the front windshield, directly influence driver's sight, influence the security of driving, car wiper water effect is by the direct influence of the dynamics of scraping and brushing and the angle of the arm of scraping, these two parameter design companies arrange position and front windshield gradient simulation according to the wiper and calculate, if the angle of scraping and the dynamics of the arm of scraping do not accord with the design standard, glass is easily appeared and is scraped unclean, there is the mar, the eccentric wear, the abnormal sound, cause wiper life to shorten.
The automobile windscreen wiper is composed of a windscreen wiper motor, a windscreen wiper arm, a windscreen wiper connecting rod and windscreen wipers, and is mainly used for scraping raindrops and dust on front windscreen, so that the visibility of a driver is improved, the driving safety is ensured, abnormal sound can appear when the windscreen wiper is used for a long time, the situation of unclean scraping is avoided, particularly, in rainy and snowy weather, the driving at night influences the visual field of the driver, and the accident rate is increased.
The pressing force of the wiper arm on the wiper blade influences the wiping effect of the wiper blade, and the wiper blade can be prevented from shaking and deforming in the wiping process by the aid of the appropriate pressing force, so that a good wiping effect is obtained.
In order to ensure the working reliability of the wiper arm, several wiper arm samples are randomly extracted on a production line to perform a bench test of pressing force on the wiper arm samples, and whether the wiper arm is qualified is checked by verifying whether the test result meets the corresponding technical specification. Therefore, a new technical solution needs to be provided.
Disclosure of Invention
The invention aims to provide a test method for rapidly measuring the pressing force and the torsion angle of a wiper arm, which solves the problem that in order to ensure the working reliability of the wiper arm, a plurality of wiper arm samples are required to be randomly extracted on a production line to carry out a bench test of the pressing force, and whether the wiper arm is qualified is checked by verifying whether the test result meets the corresponding technical specification.
In order to achieve the purpose, the invention provides the following technical scheme: a test method for rapidly measuring pressing force and torsion angle of a wiper arm comprises the following steps: but mobile base, but mobile base's upper portion is provided with mount and fixing base, the inboard upper end that is provided with screw rod and screw rod of mount extends to the mount top and installs the rocker, the surface mounting that the surface of screw rod was provided with sliding block and sliding block has the wiper arm, the upper portion that the upper portion of fixing base was provided with pressure sensor and pressure sensor is provided with angle sensor, angle sensor's upper portion is provided with the scale plate, the other end of wiper arm and mutual contact between scale plate and the angle sensor, but mobile base's surface is provided with electric connection between controller and the controller pass through wire and angle sensor and the pressure sensor.
In a preferred embodiment of the present invention, a limiting rod is disposed inside the sliding block, and the limiting rod penetrates through the sliding block and is fixedly connected to the fixing frame.
As a preferred embodiment of the present invention, the pressure sensor has a measurement range of: 0N-50N, resolution ≦ 0.02N, and accuracy ≦ 1% FS.
In a preferred embodiment of the present invention, the angle sensor has a resolution ≦ 0.1 ° and an accuracy ≦ 0.2 °.
As a preferred embodiment of the present invention, the test method comprises the steps of:
step 1: the fixed wiper arm is arranged on the upper end surface of the sliding block;
step 2: the other end of the fixed pressure sensor is connected with the controller;
and step 3: the controller is electrified, and the interface is controlled to adjust the value of the sensor to return to zero;
and 4, step 4: rotating the rocker to adjust the position of the sliding block, moving the sliding block downwards, adjusting the sliding block to the designed height difference, and fixing the rocker;
and 5: the front section of the wiper arm is arranged in the torsion angle scale plate;
step 6: the display reads the pressing force and the torsion angle value of the wiper arm, judges whether the pressing force and the torsion angle value reach the design value, and records the pressing force and the torsion angle value;
and 7: the wiper arm is replaced, and other fixing devices are unchanged;
and 8: reading the pressing force and torsion angle values of the wiper arm, and performing rapid measurement by analogy;
and step 9: and outputting the measurement result and the table data.
Compared with the prior art, the invention has the following beneficial effects:
the invention can intuitively and accurately test the pressing force and the torsion angle value of the wiper arm, has simple equipment operation, can quickly test the wiper arm in batches, improves the working efficiency of detection personnel, displays the test result at a glance, better judges whether a product is qualified or not, places the pressure sensor and the torsion angle scale plate on the sensor seat body together, arranges two limit columns on the scale plate, movably connects the wiper arm placing piece and the scale plate, fixes a pointer pointing to the torsion angle scale on the wiper arm placing piece, and the pointer is positioned between the two limit columns, and can accurately display the torsion angle value. The angle sensor is arranged behind the scale plate, the angle sensor is connected with the control system and can collect torsion angle data in real time, the pressure sensor is arranged below the scale plate and is connected with the control system and collects and displays pressure data in real time. The control system can output the form file and the judgment result, is convenient for a client to read and is simple to operate.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. a movable base; 2. a fixed mount; 3. a screw; 4. a slider; 5. a limiting rod; 6. a rocker; 7. a wiper arm; 8. a fixed seat; 9. a pressure sensor; 10. an angle sensor; 11. a scale plate; 12. and a controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a test method for rapidly measuring pressing force and torsion angle of a wiper arm comprises the following steps: the device comprises a movable base 1, wherein a fixed frame 2 and a fixed seat 8 are arranged on the upper part of the movable base 1, a screw rod 3 is arranged on the inner side of the fixed frame 2, the upper end of the screw rod 3 extends to the top of the fixed frame 2 and is provided with a rocker 6, a sliding block 4 is arranged on the surface of the screw rod 3, a wiper arm 7 is arranged on the surface of the sliding block, a pressure sensor 9 is arranged on the upper part of the fixed seat 8, an angle sensor 10 is arranged on the upper part of the pressure sensor 9, a scale plate 11 is arranged on the upper part of the angle sensor 10, the other end of the wiper arm 7 is in mutual contact with the scale plate 11 and the angle sensor 10, a controller 12 is arranged on the surface of the movable base 1, the controller 12 is electrically connected with the angle sensor 10 and the sliding block 9 through a lead, a limiting rod 5 is arranged inside the movable base 4, and the limiting rod 5 penetrates through the sliding block 4 and is fixedly connected with the fixed frame 2, the pressure sensor 9 measurement range: 0N-50N, resolution is less than or equal to 0.02N, precision is less than or equal to +/-1% FS, installation height position and fixed frame 2 position are adjustable, the wiper arms 7 with different lengths can be measured, the resolution of the angle sensor 10 is less than or equal to 0.1 degrees, the precision is less than or equal to +/-0.2 degrees, the movable base 1 is an aluminum section plate with a transverse installation chute, the fixed frame 2 and the pressure sensor 9 are conveniently installed on the base, a graduated scale is installed on the side surface of the fixed frame 2, the total height is 500mm, the wiper arms 7 are installed at the movable sliding blocks 4, the sliding blocks 4 are driven to move up and down by manually rotating a rocker 6, a limiting rod 5 ensures that the sliding blocks 4 are not inclined in horizontal position, the hand-operated operation is safer and more reliable than the electric pressing, accidents are avoided, a control system display can collect and display the current torsion angle and pressure value of the wiper arms 7, parameter ranges can be set in the early stage, the test values can be judged, and two states of passing and failing are displayed, pressure sensor 9 and twist angle scale plate 11 place jointly on the sensor pedestal, are provided with two spacing posts on the scale plate 11, and a wiper arm 7 is placed and 11 swing joint of scale plate, and wiper arm 7 is fixed with the pointer of directional twist angle scale on placing, and the pointer is located between two spacing posts, can accurate demonstration twist angle value. An angle sensor 10 is arranged behind the scale plate 11, the angle sensor 10 is connected with a control system and can collect torsion angle data in real time, a pressure sensor 9 is arranged below the scale plate 11, and the pressure sensor 9 is connected with the control system and collects and displays pressure data in real time. The control system can output the form file and the judgment result, is convenient for a client to read and is simple to operate.
In a further refinement, the test method comprises the following steps:
step 1: the fixed wiper arm is arranged on the upper end surface of the sliding block;
step 2: the other end of the fixed pressure sensor is connected with the controller;
and step 3: the controller is electrified, and the interface is controlled to adjust the value of the sensor to return to zero;
and 4, step 4: rotating the rocker to adjust the position of the sliding block, moving the sliding block downwards, adjusting the sliding block to the designed height difference, and fixing the rocker;
and 5: the front section of the wiper arm is arranged in the torsion angle scale plate;
step 6: the display reads the pressing force and the torsion angle value of the wiper arm, judges whether the pressing force and the torsion angle value reach the design value, and records the pressing force and the torsion angle value;
and 7: the wiper arm is replaced, and other fixing devices are unchanged;
and 8: reading the pressing force and torsion angle values of the wiper arm, and performing rapid measurement by analogy;
and step 9: and outputting the measurement result and the table data.
The invention can intuitively and accurately test the pressing force and the torsion angle value of the wiper arm 7, has simple equipment operation, can quickly test the wiper arm 7 in batches, improves the working efficiency of detection personnel, displays the test result at a glance, better judges whether a product is qualified or not, places the pressure sensor 9 and the torsion angle scale plate 11 on the sensor base together, arranges two limit posts on the scale plate 11, movably connects the wiper arm 7 placing piece and the scale plate 11, fixes a pointer pointing to the torsion angle scale on the wiper arm 7 placing piece, and locates the pointer between the two limit posts, thereby accurately displaying the torsion angle value. An angle sensor 10 is arranged behind the scale plate 11, the angle sensor 10 is connected with a control system and can collect torsion angle data in real time, a pressure sensor 9 is arranged below the scale plate 11, and the pressure sensor 9 is connected with the control system and collects and displays pressure data in real time. The control system can output the form file and the judgment result, is convenient for a client to read and is simple to operate.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a test device of quick measurement windscreen wiper arm packing force and torsional angle which characterized in that: the method comprises the following steps: but mobile base (1), the upper portion of mobile base (1) is provided with mount (2) and fixing base (8), the inboard of mount (2) is provided with screw rod (3) and the upper end of screw rod (3) extends to mount (2) top and installs rocker (6), the surface mounting that the surface of screw rod (3) was provided with sliding block (4) and sliding block (4) has windscreen wiper arm (7), the upper portion that the upper portion of fixing base (8) was provided with pressure sensor (9) and pressure sensor (9) is provided with angle sensor (10), the upper portion of angle sensor (10) is provided with scale plate (11), the other end and scale plate (11) and angle sensor (10) of windscreen wiper arm (7) contact each other between, the surface of mobile base (1) is provided with electric connection between controller (12) and controller (12) through wire and angle sensor (10) and pressure sensor (9).
2. A test device for rapid measurement of the pressing force and torsion angle of a wiper arm (7) according to claim 1, characterized in that: the inside of sliding block (4) is provided with gag lever post (5) and gag lever post (5) run through fixed connection between sliding block (4) and mount (2).
3. A test device for rapid measurement of the pressing force and torsion angle of a wiper arm (7) according to claim 1, characterized in that: the pressure sensor (9) measuring range: 0N-50N, resolution ≦ 0.02N, and accuracy ≦ 1% FS.
4. A test device for rapid measurement of the pressing force and torsion angle of a wiper arm (7) according to claim 1, characterized in that: the resolution of the angle sensor (10) is less than or equal to 0.1 DEG, and the accuracy is less than or equal to +/-0.2 deg.
5. The test method for rapidly measuring the pressing force and torsion angle of the wiper arm according to claim 1, wherein: the test method comprises the following steps:
step 1: the fixed wiper arm is arranged on the upper end surface of the sliding block;
step 2: the other end of the fixed pressure sensor is connected with the controller;
and step 3: the controller is electrified, and the interface is controlled to adjust the value of the sensor to return to zero;
and 4, step 4: rotating the rocker to adjust the position of the sliding block, moving the sliding block downwards, adjusting the sliding block to the designed height difference, and fixing the rocker;
and 5: the front section of the wiper arm is arranged in the torsion angle scale plate;
step 6: the display reads the pressing force and the torsion angle value of the wiper arm, judges whether the pressing force and the torsion angle value reach the design value, and records the pressing force and the torsion angle value;
and 7: the wiper arm is replaced, and other fixing devices are unchanged;
and 8: reading the pressing force and torsion angle values of the wiper arm, and performing rapid measurement by analogy;
and step 9: and outputting the measurement result and the table data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110837408.4A CN113720588A (en) | 2021-07-23 | 2021-07-23 | Test method for rapidly measuring pressing force and torsion angle of wiper arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110837408.4A CN113720588A (en) | 2021-07-23 | 2021-07-23 | Test method for rapidly measuring pressing force and torsion angle of wiper arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113720588A true CN113720588A (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110837408.4A Pending CN113720588A (en) | 2021-07-23 | 2021-07-23 | Test method for rapidly measuring pressing force and torsion angle of wiper arm |
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| CN (1) | CN113720588A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888145A (en) * | 2022-07-15 | 2022-08-12 | 四川富士电机有限公司 | Wiper arm torsional angle forming device |
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| CN104019787A (en) * | 2014-06-25 | 2014-09-03 | 贵阳万江航空机电有限公司 | Method and device for detecting torsional angle, arch rise and pressure of wiper arm |
| KR20200025031A (en) * | 2018-08-29 | 2020-03-10 | (재)대구기계부품연구원 | Inspection and correction apparatus for wiper arm |
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2021
- 2021-07-23 CN CN202110837408.4A patent/CN113720588A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101343094A (en) * | 2008-08-26 | 2009-01-14 | 常州合力环保科技有限公司 | Swimming type algae removing facilities and ultrasonic algae-removing apparatus |
| CN102052891A (en) * | 2010-12-08 | 2011-05-11 | 殷小恒 | Instrument for measuring torsion angle of wiper arm |
| CN202339181U (en) * | 2011-11-09 | 2012-07-18 | 浙江金刚汽车有限公司 | Torsional angle and pressure detection device for windshield wiper arm |
| CN203011583U (en) * | 2012-12-25 | 2013-06-19 | 上海世德子汽车零部件有限公司 | Tool for testing pressure and side surface swing clearance angle of wiper arm assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114888145A (en) * | 2022-07-15 | 2022-08-12 | 四川富士电机有限公司 | Wiper arm torsional angle forming device |
| CN114888145B (en) * | 2022-07-15 | 2022-10-25 | 四川富士电机有限公司 | Wiper arm twisting angle forming device |
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