CN210294319U

CN210294319U - Corner sensor test fixture

Info

Publication number: CN210294319U
Application number: CN201921672310.2U
Authority: CN
Inventors: 王宇征; 黄强; 王维
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-04-10
Anticipated expiration: 2029-09-30

Abstract

The utility model discloses a corner sensor test fixture, including supporting seat and test assembly, the supporting seat is used for supporting the fixed mounting corner sensor that awaits measuring, test assembly includes corner input assembly, corner input assembly includes that one end is used for the angle input pole with the angle input end fixed connection of the corner sensor that awaits measuring, the other end through the rotation angle input pole, in order to the corner sensor input test angle that awaits measuring, signal of telecommunication through analysis corner sensor signal output part output, calculate the actual angle that reachs under this output signal of telecommunication, error size through contrast actual angle and test angle, judge the corner sensor precision, by last knowing, this test fixture simple structure, reduce the cost of test fixture, and portable.

Description

Corner sensor test fixture

Technical Field

The utility model relates to a sensor technical field, in particular to corner sensor test fixture.

Background

The sensing detection device is a receptor of the system and is a key link for realizing automatic control and automatic adjustment. Taking a rotational speed and rotational angle sensor for a vehicle as an example, the rotational speed and rotational angle sensor is widely used in an engine, a transmission shaft, and the like to detect a rotational speed and rotational angle of a rotating workpiece. The accuracy of the sensor detection directly affects the control logic of the electronic control unit, and if the accuracy is low, a great potential safety hazard exists, so the accuracy of the sensor detection device needs to be detected.

Most of test fixture to corner sensor on the existing market use digital display collection equipment to gather output etc. for using motor input corner, and build the test fixture of above-mentioned type, and the equipment that needs is more, and the cost is higher, and can't carry.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a corner sensor test fixture, aim at simplifying the test fixture structure, reduce the cost of corner sensor test fixture, and portable.

In order to achieve the above object, the utility model provides a corner sensor test fixture, include:

the supporting seat is used for supporting and fixedly mounting a corner sensor to be measured; and the number of the first and second groups,

the testing assembly comprises a corner input assembly, and the corner input assembly comprises an angle input rod, one end of the angle input rod is fixedly connected with the angle input end of the corner sensor to be tested;

and rotating the other end of the angle input rod to input a test angle to the to-be-tested corner sensor.

Optionally, the support seat comprises:

the bottom plate extends along the horizontal direction; and the number of the first and second groups,

the two support columns extend vertically and are arranged at intervals on the upper end face of the bottom plate, and the upper end faces of the two support columns are used for supplying the installation seat of the corner sensor to be tested to install.

Optionally, the angle input end of the corner sensor to be measured sets up, and its characterized in that, the corner input subassembly is still including locating the calibrated scale of supporting seat, be equipped with a plurality of scale marks on the calibrated scale for instruct the turned angle of angle input pole.

Optionally, the bottom plate is provided with an alignment hole corresponding to a central position between the two support columns, and the alignment hole is used for aligning with a rotation axis of an angle input end of the rotation angle sensor to be measured;

the calibrated scale is located the below of bottom plate, a plurality of scale marks are followed the radial extension of calibrated scale just follows the circumference interval of calibrated scale sets up, upwards from top to bottom along, the center of calibrated scale with the counterpoint hole is to align the setting.

Optionally, the plurality of scale marks comprise indicating scale marks extending from the edge of the dial to the center of the dial, and at least 3 indicating scale marks are arranged;

the bottom plate is formed with 3 at least counterpoint structures on the lateral wall of counterpoint hole for be respectively with correspond 3 indicate scale mark be the alignment setting.

Optionally, 4 indication scale marks are arranged and are respectively arranged at intervals along the circumferential direction of the dial, and an included angle between two adjacent indication scale marks is 90 degrees;

the alignment holes are arranged in a square shape, and an included angle between two adjacent side walls of each alignment hole forms the alignment structure.

Optionally, the angle input rod is the setting of buckling, including horizontal extension and be used for fixed connection to await measuring the first pole section of the angle input end of corner sensor, connecting first pole section and along vertical extension's second pole section and connecting the second pole section just along horizontal extension's third pole section, the third pole section is located the second pole section dorsad one side of first pole section, the second pole section is used for dodging the corner sensor setting awaits measuring.

Optionally, the head of the third rod segment is needle-shaped.

Optionally, the lower end surface of the third pole segment is disposed adjacent to the upper end surface of the base plate.

Optionally, a fool-proof inclined plane is formed on the bottom plate.

The utility model provides an among the technical scheme, corner sensor test fixture includes supporting seat and test assembly, the supporting seat is used for supporting the fixed mounting corner sensor that awaits measuring, test assembly includes corner input subassembly, corner input subassembly include one end be used for with the corner sensor's that awaits measuring angle input end fixed connection's angle input pole, through rotating the other end of angle input pole, with to the corner sensor input test angle that awaits measuring, through the analysis the signal of telecommunication of corner sensor signal output part output calculates the actual angle that reachs under this output signal of telecommunication, and through the error size of contrast actual angle and test angle, judges corner sensor precision, by last knowing, this test fixture simple structure, thereby reduce test fixture's cost, and portable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a corner sensor testing tool provided by the present invention;

FIG. 2 is a schematic view of the support seat shown in FIG. 1;

FIG. 3 is a schematic view of an assembly structure of the support base shown in FIG. 1;

fig. 4 is a schematic structural view of the dial in fig. 1 aligned with the alignment hole.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1000	Corner sensor to be measured	211a	First pole segment
100	Corner sensor test fixture	211b	Second pole segment
				1	Supporting seat	211c	Third pole segment
11	Base plate	22	Dial scale
				111	Alignment hole	221	Graduation mark
12	Support column	221a	Indicating scale mark
				2	Test assembly	a	Alignment structure
21	Corner input assembly	b	Fool-proof inclined plane
				211	Angle input rod

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The sensing detection device is a receptor of the system and is a key link for realizing automatic control and automatic adjustment. Taking a rotational speed and rotational angle sensor for a vehicle as an example, the rotational speed and rotational angle sensor is widely used in an engine, a transmission shaft, and the like to detect a rotational speed and rotational angle of a rotating workpiece. The accuracy of the sensor detection directly affects the control logic of the electronic control unit, and if the accuracy is low, a great potential safety hazard exists, so the accuracy of the sensor detection device needs to be detected. Most of test fixture to corner sensor on the existing market use digital display collection equipment to gather output etc. for using motor input corner, and build the test fixture of above-mentioned type, and the equipment that needs is more, and the cost is higher, and can't carry.

The utility model provides a corner sensor test fixture, wherein, figure 1 to figure 4 do the utility model provides a structure schematic diagram of corner sensor test fixture's embodiment.

Referring to fig. 1 to 3, the corner sensor testing tool 100 includes a supporting seat 1 and a testing component 2, the supporting seat 1 is used for supporting and fixedly mounting a corner sensor to be tested, the testing component 2 includes a corner input component 21, the corner input component 21 includes an angle input rod 211, one end of the angle input rod 211 is used for being fixedly connected with an angle input end of the corner sensor 1000 to be tested, and a testing angle is input to the corner sensor 1000 to be tested by rotating the other end of the angle input rod 211.

Through rotating the other end of angle input pole 211, to the corner sensor 1000 that awaits measuring inputs test angle, obtains the signal of telecommunication of the corner sensor 1000 signal output that awaits measuring output, through the analytical calculation the signal of telecommunication of the corner sensor 1000 that awaits measuring output obtains the actual angle that corresponds under this signal of telecommunication, and through the error magnitude of contrast actual angle and test angle, judges the precision of the corner sensor 1000 that awaits measuring, by last can, this corner sensor test fixture 100 simple structure, greatly reduced test fixture's cost, and portable.

The utility model provides an among the technical scheme, supporting seat 1 includes bottom plate 11 and two support columns 12, bottom plate 11 sets up to extending along the level, two support columns 12 set up to extending from top to bottom along, and the interval is located the up end of bottom plate 11, through with the mount pad of the corner sensor 1000 that awaits measuring install extremely the up end of two support columns 12 makes corner sensor test fixture 100 simple structure can remove as required, and portable.

In order to determine the angle of the angle input end of the rotation angle sensor 1000 to be measured, referring to fig. 4, in this embodiment, the angle input end of the rotation angle sensor 1000 to be measured is disposed upward so as to facilitate the installation of the angle input rod 211, the rotation angle input component 21 further includes a scale disc 22 disposed on the support base 1, a plurality of scale marks 221 are disposed on the scale disc 22 to indicate the rotation angle of the angle input rod 211, and the angle input by the angle input rod 211 can be determined by recording the scale marks 221 corresponding to the angle input rod 211, so that the operation is simple.

In order to ensure the accuracy of the test result of the corner sensor testing tool 100, the corner sensor testing tool 100 needs to be aligned, and it is ensured that the rotation axis of the angle input end of the corner sensor 1000 to be tested is aligned with the center of the dial 22, specifically, referring to fig. 4, in this embodiment, an alignment hole 111 is provided at the central position of the bottom plate 11 corresponding to the two supporting pillars 12, for being aligned with the rotation axis of the angle input end of the corner sensor 1000 to be tested, the dial 22 is disposed below the bottom plate 11, the plurality of scale lines 221 extend along the radial direction of the dial 22 and are disposed at intervals along the circumferential direction of the dial 22, and are disposed vertically upward, the center of the dial 22 is aligned with the alignment hole 111, and it is ensured that the rotation axis of the angle input end of the corner sensor 1000 to be tested is aligned with both the alignment hole 111 and the dial 22, the accuracy of the input test angle is guaranteed, the operation of the corner sensor test tool 100 is simple, and the test result of the corner sensor test tool 100 is more accurate.

In order to realize the alignment of the center of the dial plate 22 and the alignment hole 111, in the embodiment of the present invention, a plurality of the calibration marks 221 includes the indication calibration marks 221a extending from the edge of the dial plate 22 to the center of the dial plate 22, the indication calibration marks 221a are at least provided in 3, the bottom plate 11 is formed with at least 3 alignment structures a on the sidewall of the alignment hole 111 for respectively being aligned with the corresponding 3 indication calibration marks 221a, and by aligning at least 3 of the indication calibration marks 221a with at least 3 of the alignment structures a, alignment is realized, so that the center of the dial plate 22 is aligned with the alignment hole 111, the rotation axis of the angle input end of the rotation angle sensor 1000 to be measured is aligned with the dial plate 22, so that the input test angle can be determined directly by reading the calibration marks 221, so that the operation is simple.

Specifically, referring to fig. 4, indicate scale mark 221a to set up 4, and follow respectively the circumference interval of calibrated scale 22 sets up, and adjacent two the contained angle between the indication scale mark 221a is 90 settings, counterpoint hole 111 is square setting, forms contained angle between two adjacent lateral walls of counterpoint hole 111 forms counterpoint structure a, through with 4 indicate scale mark 221a with contained angle between two adjacent lateral walls of counterpoint hole 111 forms counterpoint structure a aligns, can realize with the rotation axis of the angle input end of the corner sensor 1000 that awaits measuring with calibrated scale 22 aligns, makes the input test angle can directly just can confirm through reading scale mark 221 for easy operation.

Referring to fig. 1, the angle input rod 211 is disposed in a bending manner, and includes a first rod segment 211a extending in a transverse direction and used for being fixedly connected to an angle input end of the rotation angle sensor 1000 to be tested, a second rod segment 211b connecting the first rod segment 211a and extending in a vertical direction, and a third rod segment 211c connecting the second rod segment 211b and extending in the transverse direction, where the third rod segment 211c is located on a side of the second rod segment 211b facing away from the first rod segment 211a, the second rod segment 211b is used for avoiding the arrangement of the rotation angle sensor 1000 to be tested, a test angle is input to the angle input end of the rotation angle sensor 1000 to be tested through the first rod segment 211a, and the third rod segment 211c is closer to the dial 22 due to the second rod segment 211b, so that the angle can be conveniently read, and the test accuracy of the rotation angle sensor test fixture 100 is improved, and makes the operation simple.

Improve the mode of the accuracy of corner sensor test fixture 100 test result has a plurality ofly, the utility model discloses do not restrict this, specifically, in this embodiment, through inciting somebody to action the head of third pole section 211c is the needle-like setting, is convenient for read scale mark 221 on the calibrated scale 22 has improved the reading the accuracy of scale mark 221, thereby improves the accuracy of corner sensor test fixture 100 test result.

The utility model provides an among the technical scheme, through inciting somebody to action the lower terminal surface of third pole section 211c with the upper end of bottom plate 11 is the neighbouring setting, has reduced and has read the error that exists during the scale mark 221, thereby improves the accuracy nature of the 100 test results of corner sensor test fixture.

Referring to fig. 1, a fool-proof inclined plane b is formed on the bottom plate 11, and the fool-proof inclined plane b is used for distinguishing an initial angle direction when the rotation angle sensor 1000 to be tested is installed, so that the initial angle corresponds to 0 ° on the dial 22, and the determination of the input test angle is facilitated.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. The utility model provides a corner sensor test fixture which characterized in that includes:

2. The corner sensor testing tool of claim 1, wherein the support base comprises:

3. The corner sensor testing tool according to claim 2, wherein the corner sensor to be tested has an angle input end facing upward, and the corner input assembly further comprises a dial disposed on the supporting base, the dial being provided with a plurality of scale lines for indicating a rotation angle of the angle input rod.

4. The corner sensor testing tool according to claim 3, wherein the bottom plate is provided with a registration hole corresponding to a central position between the two support columns, and the registration hole is used for being aligned with a rotation axis of an angle input end of the corner sensor to be tested;

5. The corner sensor testing tool according to claim 4, wherein the plurality of scale marks comprise indicating scale marks extending from the edge of the dial to the center of the dial, and at least 3 indicating scale marks are arranged;

6. The corner sensor testing tool according to claim 5, wherein the number of the indicating scale marks is 4, the indicating scale marks are arranged at intervals along the circumferential direction of the dial respectively, and an included angle between every two adjacent indicating scale marks is 90 degrees;

7. The corner sensor testing tool according to claim 4, wherein the angle input rod is arranged in a bent manner and comprises a first rod section, a second rod section and a third rod section, wherein the first rod section extends transversely and is used for being fixedly connected to an angle input end of the corner sensor to be tested, the second rod section is connected with the first rod section and extends vertically, the third rod section is connected with the second rod section and extends transversely, the third rod section is located on one side, facing away from the first rod section, of the second rod section, and the second rod section is used for avoiding the corner sensor to be tested.

8. The rotation angle sensor testing tool according to claim 7, wherein the head of the third rod segment is arranged in a needle shape.

9. The rotation angle sensor testing tool according to claim 7, wherein a lower end surface of the third rod segment is disposed adjacent to an upper end surface of the bottom plate.

10. The corner sensor testing tool according to claim 2, wherein a fool-proof inclined plane is formed on the bottom plate.