CN105222743A - A kind of testing agency of steering column gap and detection method thereof - Google Patents
A kind of testing agency of steering column gap and detection method thereof Download PDFInfo
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- CN105222743A CN105222743A CN201410287337.5A CN201410287337A CN105222743A CN 105222743 A CN105222743 A CN 105222743A CN 201410287337 A CN201410287337 A CN 201410287337A CN 105222743 A CN105222743 A CN 105222743A
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- steering column
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Abstract
The invention belongs to analysis and survey control technology field, specifically a kind of testing agency of steering column gap and detection method thereof.Comprise frame, driving mechanism, electromagnetic clutch, torque sensor, displacement transducer, fixture on steering column lower clamp and steering column, wherein driving mechanism is arranged on the bottom of frame, the output terminal of described driving mechanism is connected with electromagnetic clutch in turn, torque sensor and steering column lower clamp, institute's displacement sensors is arranged in frame, and it is corresponding with the transmission shaft on the upside of torque sensor, the upper end edge vertical direction of described frame is provided with slide rail, on described steering column, fixture is slidably connected on described slide rail, and it is corresponding with steering column lower clamp, steering column to be detected to be arranged on steering column lower clamp and steering column between fixture.The present invention ensures stability, accuracy during steering column gap detection, and can carry out the detection of multiple steering column in single device.
Description
Technical field
The invention belongs to analysis and survey control technology field, specifically a kind of testing agency of steering column gap and detection method thereof.
Background technology
Along with the development of Domestic Automotive Industry and improving constantly of car mass, the quality requirements of people to auto parts and components is also more and more higher, and car steering tube column is as the parts of closure dish and steering gear, its quality is also more and more subject to the attention of each auto vendor, thus also stricter to its testing standard.Wherein, equal IDS angle, steering column gap.
The domestic testing agency to steering column gap adopts horizontal detection mechanism substantially at present, can only detect for the steering column of single kind, and the stability detected cannot be guaranteed.
In the market to the gap detection method that also neither one is clear and definite of steering column.Substantially all only steering column is carried out to the detection of a torsional deformation.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of testing agency and detection method thereof of steering column gap, specify the gap number that steering column has assembled rear inside, ensure stability, accuracy when steering column clearance angle detects.
To achieve these goals, the present invention is by the following technical solutions: a kind of testing agency of steering column gap, comprise frame, driving mechanism, electromagnetic clutch, torque sensor, displacement transducer, fixture on steering column lower clamp and steering column, wherein driving mechanism is arranged on the bottom of frame, the output terminal of described driving mechanism is connected with electromagnetic clutch in turn, torque sensor and steering column lower clamp, institute's displacement sensors is arranged in frame, and it is corresponding with the transmission shaft on the upside of torque sensor, the upper end edge vertical direction of described frame is provided with slide rail, on described steering column, fixture is slidably connected on described slide rail, and it is corresponding with steering column lower clamp, steering column to be detected to be arranged on steering column lower clamp and steering column between fixture.
Described frame is provided with jig lifting mechanism, and described upper jig lifting mechanism is connected with fixture on steering column and drives fixture on steering column to move up and down.
Described upper jig lifting mechanism comprises the leading screw and nut that are threaded, and the two ends of described leading screw are vertically rotatably installed in frame, and on described nut and steering column, fixture is affixed.
Described leading screw is provided with handwheel, is rotated by hand wheel rotating leading screw, thus realizes moving up and down of fixture on steering column.
Described driving mechanism comprises servomotor and planetary reduction gear, and described servomotor is arranged on the bottom of frame and output terminal is connected with planetary reduction gear, and described planetary reduction gear is connected with electromagnetic clutch.
Institute's displacement sensors is corresponding with the fork that transmission shaft is provided with.
A detection method for the testing agency in steering column gap, comprises the following steps:
Fixed the wherein one end at steering column two ends, the other end is by servomotor transmitting torque;
By moment of torsion and the shift value of torque sensor and displacement transducer Real-time Collection steering column one end;
Draw the relation curve of displacement and moment of torsion;
Least square method is adopted to make matched curve;
The gap of steering column is drawn by matched curve.
The described moment of torsion by torque sensor and displacement transducer Real-time Collection steering column one end and shift value, process is:
Servomotor drives steering column to rotate forward, until moment of torsion is loaded on required torque;
Servomotor reverses, and moment of torsion Opposite side loading is to required torque.
Described employing least square method makes matched curve, comprising:
According to the one section rotating forward curve of described relation curve at first quartile, adopt least square method, make rotating forward fitting a straight line;
According to the one section reverse curve of described relation curve at third quadrant, adopt least square method, make reversion fitting a straight line.
The described gap being drawn steering column by matched curve, is specially:
Fitting a straight line translation will be rotated forward, and with rotate forward curve to be the quadrants of negative value in moment of torsion, displacement tangent, draw the phase tangent line rotating forward fitting a straight line; Fitting a straight line of reversing translation, and with rotate forward curve moment of torsion, displacement be on the occasion of quadrants tangent, draw the phase tangent line of reversion fitting a straight line;
Calculate the spacing of the phase tangent line rotating forward fitting a straight line and rotate forward fitting a straight line, and fork position during displacement transducer value, calculated by the angle of chord, namely can draw the forward clearance angle of steering column;
Calculate the spacing of the phase tangent line of reversion fitting a straight line and reversion fitting a straight line, and fork position during displacement transducer value, calculated by the angle of chord, namely can draw the backlass angle of steering column;
The formula that the described angle of chord calculates is:
а＝arctan(A/L)
Wherein: а is clearance angle, A is the gap width between fitting a straight line and phase tangent line, and L is the distance between mechanism driving center to displacement sensor bar center.
Advantage of the present invention and beneficial effect are:
1. stability, accuracy when the present invention ensures steering column gap detection, and the detection of multiple steering column can be carried out in single device.
2. the present invention adjusts the position of fixture on steering column by screw mandrel, adapts to the detection of the different steering column of various length.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein: 1 is servomotor, 2 is planetary reduction gear, and 3 is electromagnetic clutch, and 4 is torque sensor, and 5 is displacement transducer, and 6 is steering column lower clamp, and 7 is upper jig lifting mechanism, and 8 is fixture on steering column.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, the present invention includes fixture 8 on frame, driving mechanism, electromagnetic clutch 3, torque sensor 4, displacement transducer 5, steering column lower clamp 6 and steering column, wherein driving mechanism is arranged on the bottom of frame, and the output terminal of described driving mechanism is connected with electromagnetic clutch 3, torque sensor 4 and steering column lower clamp 6 in turn.Institute's displacement sensors 5 to be arranged in frame and corresponding with the fork that the transmission shaft on the upside of torque sensor 4 is provided with.The upper end edge vertical direction of described frame is provided with slide rail, and on described steering column, fixture 8 to be slidably connected on described slide rail and corresponding with steering column lower clamp 6.Steering column is as trade union college to be detected on steering column lower clamp 6 and steering column between fixture 8, and wherein on steering column, fixture 8 is fixed, and steering column lower clamp 6 can rotate with gear train.
Described frame is provided with jig lifting mechanism 7, and described upper jig lifting mechanism 7 is connected with fixture on steering column 8 and drives fixture 8 on steering column to move up and down.Described upper jig lifting mechanism 7 comprises the leading screw and nut that are threaded, and the two ends of described leading screw are vertically rotatably installed in frame, and on described nut and steering column, fixture 8 is affixed.Described leading screw is provided with handwheel, is rotated by hand wheel rotating leading screw, thus realizes moving up and down of fixture 8 on steering column.
Described driving mechanism comprises servomotor 1 and planetary reduction gear 2, and described servomotor 1 is arranged on the bottom of frame and output terminal is connected with planetary reduction gear 2, and described planetary reduction gear 2 is connected with electromagnetic clutch 3.
Principle of work of the present invention is:
Fixed steering column one end, the other end loads the torque that a first positive dirction rises to setting value Opposite side loading more continuously, and due to fit-up gap and deformation own, input end produces the skew of the certain angle of positive and negative both direction.Loaded torque real process is recorded by torque sensor, then by displacement transducer through the deviation angle measuring steering axle that converts.Automatically form the displacement torque curve that the data that measure with torque sensor and displacement transducer are formed over the display, by steering column tracing analysis method, detect the gap of filled steering column.Wherein, the direction that both forward and reverse directions just defines when testing, no matter be that clockwise direction or counter clockwise direction can be defined as positive dirction.
The course of work of the present invention is:
After steering column installs, start servomotor 1, steering column lower clamp 6 is driven to rotate by gear train, now, torque sensor 4 exports institute's transmitting torque data, and displacement transducer 5 output displacement data, torque data and displacement data are transported in host computer, are directly drawn the gap numerical value of filled steering column by steering column tracing analysis method.
Described steering column tracing analysis method is:
During detection, motor first drives steering column to rotate forward, until moment of torsion is loaded on required torque, now motor reversal, moment of torsion Opposite side loading is to required torque.Torque sensor and displacement transducer feed back to PLC the instantaneous value collected simultaneously, and according to moment of torsion and the change in displacement of steering column, take displacement as X-axis, moment of torsion is Y-axis, draws out an XY curve.
According to the rotating forward curve of 0.6Nm to 3Nm scope, adopt least square method, make rotating forward fitting a straight line;
Fitting a straight line translation will be rotated forward, and tangent with the third quadrant part of forward curve, draw the phase tangent line rotating forward fitting a straight line;
Calculate the spacing of the phase tangent line rotating forward fitting a straight line and rotate forward fitting a straight line, and fork position during displacement transducer value, calculated by the angle of chord, namely can draw the forward clearance angle of steering column.
According to-0.6Nm to the reverse curve of-3Nm scope, adopt least square method, make reversion fitting a straight line;
Fitting a straight line of reversing translation, and tangent with the first quartile part of forward curve, draw the phase tangent line of reversion fitting a straight line;
Calculate the spacing of the phase tangent line of reversion fitting a straight line and reversion fitting a straight line, and fork position during displacement transducer value, calculated by the angle of chord, namely can draw the backlass angle of steering column.
Claims (10)
1. the testing agency in a steering column gap, it is characterized in that: comprise frame, driving mechanism, electromagnetic clutch (3), torque sensor (4), displacement transducer (5), fixture (8) on steering column lower clamp (6) and steering column, wherein driving mechanism is arranged on the bottom of frame, the output terminal of described driving mechanism is connected with electromagnetic clutch (3) in turn, torque sensor (4) and steering column lower clamp (6), institute's displacement sensors (5) is arranged in frame, and it is corresponding with the transmission shaft of torque sensor (4) upside, the upper end edge vertical direction of described frame is provided with slide rail, on described steering column, fixture (8) is slidably connected on described slide rail, and it is corresponding with steering column lower clamp (6), steering column to be detected to be arranged on steering column lower clamp (6) and steering column between fixture (8).
2. by the testing agency in steering column gap according to claim 1, it is characterized in that: described frame is provided with jig lifting mechanism (7), described upper jig lifting mechanism (7) is connected with fixture on steering column (8) and drives fixture on steering column (8) to move up and down.
3. by the testing agency in steering column gap according to claim 2, it is characterized in that: described upper jig lifting mechanism (7) comprises the leading screw and nut that are threaded, the two ends of described leading screw are vertically rotatably installed in frame, and on described nut and steering column, fixture (8) is affixed.
4., by the testing agency in steering column gap according to claim 3, it is characterized in that: described leading screw is provided with handwheel, rotated by hand wheel rotating leading screw, thus realize moving up and down of fixture on steering column (8).
5. by the testing agency in steering column gap according to claim 1, it is characterized in that: described driving mechanism comprises servomotor (1) and planetary reduction gear (2), described servomotor (1) is arranged on the bottom of frame and output terminal is connected with planetary reduction gear (2), and described planetary reduction gear (2) is connected with electromagnetic clutch (3).
6., by the testing agency in steering column gap according to claim 1, it is characterized in that: institute's displacement sensors (5) is corresponding with the fork that transmission shaft is provided with.
7., by the detection method of the testing agency in steering column gap according to claim 1, it is characterized in that: comprise the following steps:
Fixed the wherein one end at steering column two ends, the other end is by servomotor (1) transmitting torque;
By moment of torsion and the shift value of torque sensor (4) and displacement transducer (5) Real-time Collection steering column one end;
Draw the relation curve of displacement and moment of torsion;
Least square method is adopted to make matched curve;
The gap of steering column is drawn by matched curve.
8. by the detection method in steering column gap according to claim 7, it is characterized in that: described moment of torsion and the shift value passing through torque sensor (4) and displacement transducer (5) Real-time Collection steering column one end, process is:
Servomotor (1) drives steering column to rotate forward, until moment of torsion is loaded on required torque;
Servomotor (1) reverses, and moment of torsion Opposite side loading is to required torque.
9., by the detection method in steering column gap according to claim 7, it is characterized in that: described employing least square method makes matched curve, comprising:
According to the one section rotating forward curve of described relation curve at first quartile, adopt least square method, make rotating forward fitting a straight line;
According to the one section reverse curve of described relation curve at third quadrant, adopt least square method, make reversion fitting a straight line.
10., by the detection method in steering column gap according to claim 7, it is characterized in that: the described gap being drawn steering column by matched curve, is specially:
Fitting a straight line translation will be rotated forward, and with rotate forward curve to be the quadrants of negative value in moment of torsion, displacement tangent, draw the phase tangent line rotating forward fitting a straight line; Fitting a straight line of reversing translation, and with rotate forward curve moment of torsion, displacement be on the occasion of quadrants tangent, draw the phase tangent line of reversion fitting a straight line;
Calculate the spacing of the phase tangent line rotating forward fitting a straight line and rotate forward fitting a straight line, and fork position during displacement transducer (5) value, calculated by the angle of chord, namely can draw the forward clearance angle of steering column;
Calculate the spacing of the phase tangent line of reversion fitting a straight line and reversion fitting a straight line, and fork position during displacement transducer (5) value, calculated by the angle of chord, namely can draw the backlass angle of steering column;
The formula that the described angle of chord calculates is:
а＝arctan(A/L)
Wherein: а is clearance angle, A is the gap width between fitting a straight line and phase tangent line, and L is the distance between mechanism driving center to displacement sensor bar center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287337.5A CN105222743A (en) | 2014-06-24 | 2014-06-24 | A kind of testing agency of steering column gap and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410287337.5A CN105222743A (en) | 2014-06-24 | 2014-06-24 | A kind of testing agency of steering column gap and detection method thereof |
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| CN105222743A true CN105222743A (en) | 2016-01-06 |
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| CN201410287337.5A Pending CN105222743A (en) | 2014-06-24 | 2014-06-24 | A kind of testing agency of steering column gap and detection method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709740A (en) * | 2018-08-14 | 2018-10-26 | 安徽吉斯通自动化装备有限公司 | Novel top cap detection instrument |
| CN109489608A (en) * | 2018-12-14 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | A kind of motor turning jackshaft slides secondary detection device and detection method |
| CN117190964A (en) * | 2023-11-06 | 2023-12-08 | 江苏源达恒汽车配件有限公司 | Gap detection device of steering column assembly |
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| JPS62298712A (en) * | 1986-06-18 | 1987-12-25 | Nissan Motor Co Ltd | Measurement of space to be filled in with shim and apparatus therefor |
| GB2261288A (en) * | 1991-11-05 | 1993-05-12 | Skf Svenska Kullagerfab Ab | Device for determining the axial internal clearance and preload in rolling bearing assemblies |
| CN101464145A (en) * | 2009-01-09 | 2009-06-24 | 荆州恒盛汽车系统有限公司 | Test method for vehicle direction converter assembly clearance |
| CN102506795A (en) * | 2011-10-17 | 2012-06-20 | 无锡双益精密机械有限公司 | Bearing positioning structure of apparatus for measuring bearing play |
| CN203587086U (en) * | 2013-11-27 | 2014-05-07 | 耐世特凌云驱动系统（芜湖）有限公司 | Torsion gap detection apparatus |
| CN203940849U (en) * | 2014-06-24 | 2014-11-12 | 杭州新松机器人自动化有限公司 | The testing agency in a kind of steering column gap |
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2014
- 2014-06-24 CN CN201410287337.5A patent/CN105222743A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62298712A (en) * | 1986-06-18 | 1987-12-25 | Nissan Motor Co Ltd | Measurement of space to be filled in with shim and apparatus therefor |
| GB2261288A (en) * | 1991-11-05 | 1993-05-12 | Skf Svenska Kullagerfab Ab | Device for determining the axial internal clearance and preload in rolling bearing assemblies |
| CN101464145A (en) * | 2009-01-09 | 2009-06-24 | 荆州恒盛汽车系统有限公司 | Test method for vehicle direction converter assembly clearance |
| CN102506795A (en) * | 2011-10-17 | 2012-06-20 | 无锡双益精密机械有限公司 | Bearing positioning structure of apparatus for measuring bearing play |
| CN203587086U (en) * | 2013-11-27 | 2014-05-07 | 耐世特凌云驱动系统（芜湖）有限公司 | Torsion gap detection apparatus |
| CN203940849U (en) * | 2014-06-24 | 2014-11-12 | 杭州新松机器人自动化有限公司 | The testing agency in a kind of steering column gap |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709740A (en) * | 2018-08-14 | 2018-10-26 | 安徽吉斯通自动化装备有限公司 | Novel top cap detection instrument |
| CN109489608A (en) * | 2018-12-14 | 2019-03-19 | 安徽江淮汽车集团股份有限公司 | A kind of motor turning jackshaft slides secondary detection device and detection method |
| CN117190964A (en) * | 2023-11-06 | 2023-12-08 | 江苏源达恒汽车配件有限公司 | Gap detection device of steering column assembly |
| CN117190964B (en) * | 2023-11-06 | 2024-02-23 | 江苏源达恒汽车配件有限公司 | Gap detection device of steering column assembly |
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Application publication date: 20160106 |
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