Induction distance test fixture for proximity sensor

Abstract

A proximity sensor sensing distance testing jig is composed of a bottom plate, a testing structure, a testing fixing structure and a fixing structure to be tested, a positioning ruler, a long sliding block and a short sliding block are arranged on a fixing plate in the testing fixing structure, the position of a micrometer of a testing instrument is fixed, and position scales on the positioning ruler at the moment are read in the using process; a tested sensor placing groove and a push plate are arranged, the push plate is pushed through a telescopic push rod to adjust a to-be-tested sensor, the position of the sensor reaches the corresponding position scale of a positioning ruler on a sensor blocking fixing block, the push plate pushes the tested sensor to reach the corresponding position, and a pressing fixing clamp is pressed down to fix the tested sensor. The method can reduce the deviation of the to-be-tested sensor, improves the accuracy of the test effect, enables the relative positions of the test instrument and the to-be-tested sensor to be in the same straight line, guarantees the stability of the relative positions, guarantees the precise reading, and optimizes the test effect.

Description

Technical Field

[0001] The utility model relates to the field of sensor sensing distance test processing, in particular to a proximity sensor sensing distance test fixture. Background Art

[0002] At present, with the continuous development of electronic devices, sensors are widely used in various fields. As a detection device, the sensor can sense the information to be measured and can convert the sensed information into electrical signals or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording and control. Before leaving the factory, the sensor needs to be tested for a series of performance parameters. For example, the distance sensor has a distance error range. When the measured distance of the distance sensor is less than this range, the sensor is a substandard product. For the newly produced sensors, it is usually tested whether it has induction to determine whether the sensor is useful, and the distance sensed by the tester is used to determine whether the sensor meets the production requirements. For example, the Chinese utility model patent with patent number CN220670456U is a distance test fixture for sensors. When the induction sheet enters the detection range of the distance sensor, the induction light of the distance sensor itself will light up. When the distance between the initial position of the induction sheet and the distance sensor is determined, at this time, it is only necessary to detect the displacement of the induction sheet through the detection mechanism to obtain the detection range of the distance sensor, so as to improve the situation where the sensor test equipment is difficult to accurately measure the distance of the sensor.

[0003] There are still some problems in the use of current sensor test fixtures. The position of the sensor to be tested is not fixed during use. During the test, the sensor to be tested is prone to offset, resulting in inaccurate readings and affecting the test results. In addition, the currently used test fixtures cannot ensure that the relative positions of the test instrument and the sensor to be tested are in the same straight line, which will also affect the accuracy of the readings of the sensing distance during the test and cause inaccurate test results. Utility Model Content

[0004] In view of the above existing technical problems, the utility model provides a proximity sensor sensing distance test fixture, which is characterized by being composed of a base plate, a test structure, a test fixing structure, and a fixed structure to be tested. The test fixing structure is installed above the base plate, the test structure is installed above the test fixing structure, and the fixed structure to be tested is installed on the side of the test fixing structure.

[0005] The test fixing structure is composed of a fixing plate, a slide groove, a long slider, a short slider, and a positioning ruler A. The fixing plate is installed on the bottom plate, the slide groove is arranged on the fixing plate, the short slider is placed on one side of the slide groove, the long slider is placed on the other side of the slide groove, and the positioning ruler A is arranged on the side of the fixing plate.

[0006] The test structure is composed of a micrometer, a front fixing block, and an iron sheet. The front fixing block is installed at the front end of the micrometer, and the iron sheet is installed at the top of the front fixing block.

[0007] The fixed structure to be tested is composed of a fixed block, a sensor blocking fixed block, a downward pressing fixed card, a placement slot, a telescopic push rod, a rotation locking shaft, a push plate, and a positioning ruler B. The fixed block is installed on the side of the fixed plate, the downward pressing fixed card is installed above the fixed block, the sensor blocking fixed block is installed on the side of the fixed block, a placement slot is provided above the sensor blocking fixed block, a telescopic push rod is installed at one end of the sensor blocking fixed block, the internal motor of the sensor blocking fixed block is connected to the telescopic push rod through an electric wire, a push plate is installed on the top of the telescopic push rod, a fixed rotation locking shaft is installed above the push plate, and a positioning ruler B is provided inside the sensor blocking fixed block.

[0008] The positioning ruler A and the positioning ruler B have the same scale and are installed opposite to each other, and their starting and ending points are on the same straight line.

[0009] Beneficial effects of the utility model:

[0010] The utility model provides a proximity sensor sensing distance test fixture, a positioning ruler, a long slider and a short slider are arranged on a fixed plate of the test instrument, the position of the micrometer of the test instrument is fixed, and the position scale on the positioning ruler is read at this time, the sensor to be tested is placed in a slot and a push plate, and the push plate is pushed by a telescopic push rod to adjust the sensor to be tested, so that the sensor position reaches the corresponding position scale of the positioning ruler on the sensor blocking fixed block, the push plate pushes the tested sensor to the corresponding position, and the downward fixing card is pressed to fix it, so as to reduce the deviation of the sensor to be tested, improve the accuracy of the test effect, and enable the relative position of the test instrument and the sensor to be tested to be in the same straight line, thereby ensuring the stability of the relative position, ensuring accurate reading and optimizing the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the proximity sensor sensing distance test fixture of the utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of the proximity sensor sensing distance test fixture of the utility model;

[0013] Figure 3 This is a schematic diagram of the overall structure of the proximity sensor sensing distance test fixture of the utility model;

[0014] As shown in the figure: 1. Base plate, 2. Fixed plate, 3. Slide, 4. Micrometer, 5. Long slider, 6. Short slider, 7. Front fixed block, 8. Iron sheet, 9. Positioning ruler A, 10. Fixed block, 11. Sensor blocking fixed block, 12. Press down fixing card, 13. Placement slot, 14. Telescopic push rod, 15. Rotation locking shaft, 16. Push plate, 17. Positioning ruler B. DETAILED DESCRIPTION

[0015] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] Example 1

[0019] like Figure 1 , Figure 2 , Figure 3As shown, a fixed plate 2 is installed above the base plate 1, a slide groove 3 is arranged above the fixed plate 2, a long slider 5 is arranged on one side of the slide groove 3, a short slider 6 is arranged on the other side of the slide groove 3, a micrometer 4 is placed between the long slider 5 and the short slider 6, a front fixed block 7 is installed at the front end of the micrometer 4, an iron sheet 8 is installed on the top of the front fixed block 7, a fixed block 10 is installed on the side of the fixed plate 2, a downward fixing card 12 is installed above the fixed block 10, a sensor blocking fixed block 11 is installed on the side of the fixed block 10, a placement groove 13 is arranged above the sensor blocking fixed block 11, a telescopic push rod 14 is installed above one side of the sensor blocking fixed block 11, a push plate 16 is installed on the top of the telescopic push rod 14, a rotation locking shaft 15 is installed above the push plate 16, and a positioning ruler B18 is arranged on the side of the sensor blocking fixed block 11.

[0020] Example 2

[0021] When using the utility model, place the micrometer 4 on the slide 3, push the long slider 5 and the short slider 6, push the micrometer 4 to position, read the reading of the positioning ruler B17, fix the horizontal position of the micrometer 4, twist the micrometer 4 against the end of the sensor blocking fixed block 11, at this time the micrometer reading is 0, complete the zero calibration, twist the micrometer 4 in the opposite direction, so that its head leaves the end of the sensor blocking fixed block 11, place the sensor to be tested in the placement slot 13, start the telescopic push rod 14, push the push plate 16, the push plate 16 pushes the sensor, and reads the positioning ruler A9 The sensor position reading is adjusted to make it consistent with the reading of the positioning ruler B17, fix the sensor in a horizontal position, press down the fixing card 12 to make it sleeved on the rotating locking shaft 15, and then rotate the upper part of the rotating locking shaft 15 to make it perpendicular to the fixing card 12 to complete the locking, fix the sensor, turn the micrometer 4 to make its front fixing block 7 and the iron sheet 8 slowly approach the sensor, stop turning the micrometer 4 when there is a signal change and read the reading of the micrometer 4 at this time, record the data and judge whether the sensor sensing distance meets the design performance requirements to complete the test.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Proximity sensor sensing distance test fixture, characterized by It consists of a base plate, a test structure, a test fixed structure, and a fixed structure to be tested. The test fixed structure is installed above the base plate, the test structure is installed above the test fixed structure, and the fixed structure to be tested is installed on the side of the test fixed structure.

2. The proximity sensor sensing distance test fixture according to claim 1, characterized in that The test fixing structure consists of a fixed plate, a slide groove, a long slider, a short slider, and a positioning ruler A. The fixed plate is installed above the base plate, the slide groove is set above the fixed plate, the short slider is placed on one side of the slide groove, the long slider is placed on the other side of the slide groove, and the positioning ruler A is set on the side of the fixed plate.

3. The proximity sensor sensing distance test fixture according to claim 1, characterized in that The test structure consists of a micrometer, a front fixing block and an iron sheet. The front fixing block is installed at the front end of the micrometer, and the iron sheet is installed at the top end of the front fixing block.

4. The proximity sensor sensing distance test fixture according to claim 2, characterized in that The fixed structure to be tested is composed of a fixed block, a sensor blocking fixed block, a downward pressing fixed card, a placement slot, a telescopic push rod, a rotation locking shaft, a push plate, and a positioning ruler B. The fixed block is installed on the side of the fixed plate, the downward pressing fixed card is installed above the fixed block, the sensor blocking fixed block is installed on the side of the fixed block, a placement slot is provided above the sensor blocking fixed block, a telescopic push rod is installed at one end of the sensor blocking fixed block, the internal motor of the sensor blocking fixed block is connected to the telescopic push rod through an electric wire, a push plate is installed on the top of the telescopic push rod, a fixed rotation locking shaft is installed above the push plate, and a positioning ruler B is provided on the inner side of the sensor blocking fixed block.

5. The proximity sensor sensing distance test fixture according to claim 4, characterized in that The positioning ruler A and the positioning ruler B have the same scale and are installed opposite to each other, and their starting and ending points are on the same straight line.

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