Axial proximity distance calibration device for proximity sensor

Abstract

The utility model discloses a proximity sensor axial proximity distance calibration device, which belongs to the field of sensor testing and comprises a linear guide rail, a target and a proximity sensor circuit board, a first sliding table and a second sliding table are mounted on the linear guide rail, a first fixing part is fixedly mounted at the upper end of each of the first sliding table and the second sliding table, and a second fixing part is fixedly mounted at the lower end of each of the first sliding table and the second sliding table. The first fixing piece is composed of a base plate, an L-shaped plate, a first rubber pad, a square rod, a spring and a baffle, the L-shaped plate is fixedly installed at the upper end of the base plate, the first rubber pad is fixedly installed in the L-shaped plate, and the square rod is fixedly installed at the upper end of the L-shaped plate. Meanwhile, the target and the proximity sensor circuit board are installed on the first fixing piece and the second fixing piece, so that the installation steps of the target and the proximity sensor circuit board are simple and convenient, the installation efficiency of the target and the proximity sensor circuit board can be improved, and the efficiency of distance calibration can be improved.

Description

Technical Field

[0001] The utility model relates to the field of sensor testing, in particular to an axial proximity distance calibration device for a proximity sensor. Background Art

[0002] A proximity sensor is a component that can sense the proximity of an object. It uses the displacement sensor's sensitive characteristics to identify the approach of an object and output a corresponding switch signal. During the manufacturing process of the proximity sensor, the axial installation dimensions between the proximity sensor circuit board and the sensing end of its mounting housing must be determined according to the different specifications of the proximity sensor.

[0003] In the existing patent application with application number CN202222392001.8, a proximity sensor axial proximity distance calibration device is proposed, in which the target is fixedly installed with the target mounting fixture by means of a threaded connection, and the proximity sensor circuit board is fixedly installed with the circuit board mounting plate and the circuit board transition plate by means of a slot installation method. The installation steps of these two installation methods are relatively cumbersome, resulting in low installation efficiency of the target and the proximity sensor circuit board, which in turn leads to low efficiency of the distance calibration, and therefore needs to be improved. Utility Model Content

[0004] The main purpose of the utility model is to provide a proximity sensor axial proximity distance calibration device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A proximity sensor axial proximity distance calibration device comprises a linear guide rail, a target and a proximity sensor circuit board, wherein a first slide and a second slide are mounted on the linear guide rail, and a first fixing member is fixedly mounted on the upper ends of the first slide and the second slide, and the first fixing member comprises a base plate, an L-shaped plate, a first rubber pad, a square rod, a spring and a baffle, the L-shaped plate is fixedly mounted on the upper end of the base plate, the first rubber pad is fixedly mounted in the L-shaped plate, the square rod is fixedly mounted on the upper end of the L-shaped plate, the spring is sleeved on the square rod, and the baffle is fixedly mounted on the upper end of the square rod, a second fixing member is movably mounted on the first fixing member, the second fixing member comprises a pressure plate and a second rubber pad, the second rubber pad is fixedly mounted in the pressure plate, the target is mounted on the first fixing member and the second fixing member mounted on the first slide, and the proximity sensor circuit board is mounted on the first fixing member and the second fixing member mounted on the second slide.

[0007] Preferably, a scale is fixedly mounted on one end of the linear guide rail, a mounting bracket is fixedly mounted on the other end of the linear guide rail, and the mounting bracket is located between the first slide and the second slide, and a sensor housing is fixedly mounted on the mounting bracket.

[0008] Preferably, a pointer is fixedly mounted on each of the first slide and the second slide.

[0009] Preferably, the base plate on the first fixing member is fixedly connected to the first slide table and the second slide table, a first arc-shaped groove is formed at the upper end of the L-shaped plate, and the first rubber pad is fixedly installed in the first arc-shaped groove.

[0010] Preferably, a second arc groove is formed at the lower end of the pressure plate on the second fixing member, and the second rubber pad is fixedly installed in the second arc groove. A square hole is also formed on the pressure plate, and the pressure plate is slidably installed on the square rod through the square hole, and the pressure plate is located below the spring.

[0011] Preferably, the target and the proximity sensor circuit board are both fixed between the first rubber pad and the second rubber pad.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By arranging the first fixing member and the second fixing member on the first slide and the second slide, and installing the target and the proximity sensor circuit board on the first fixing member and the second fixing member at the same time, the installation steps of the target and the proximity sensor circuit board can be made simpler and more convenient, thereby improving the installation efficiency of the target and the proximity sensor circuit board, and further improving the efficiency of the spacing calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the first fixing member and the second fixing member of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the first fixing member of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the second fixing member of the utility model.

[0018] In the figure: 1, linear guide; 2, first slide; 3, second slide; 4, first fixing member; 5, second fixing member; 6, scale; 7, mounting bracket; 8, sensor housing; 9, target; 10, proximity sensor circuit board; 11, substrate; 12, L-shaped plate; 13, first rubber pad; 14, square rod; 15, spring; 16, baffle; 17, first arc groove; 18, pressure plate; 19, second rubber pad; 20, square hole; 21, second arc groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a proximity sensor axial proximity distance calibration device includes a linear guide 1, a target 9 and a proximity sensor circuit board 10, a first slide 2 and a second slide 3 are installed on the linear guide 1, a scale 6 is fixedly installed on one end of the linear guide 1, a mounting bracket 7 is fixedly installed on the other end of the linear guide 1, and the mounting bracket 7 is located between the first slide 2 and the second slide 3, a sensor housing 8 is fixedly installed on the mounting bracket 7, a pointer is fixedly installed on the first slide 2 and the second slide 3, the target 9 and the proximity sensor circuit board 10 are fixed between the first rubber pad 13 and the second rubber pad 19, a motor is installed at one end of the linear guide 1, and a lead screw is installed inside the linear guide 1, and the lead screw is connected to the output shaft of the motor, and the first slide 2 is installed On the screw rod, the second slide 3 is slidably installed on the linear guide 1. The process of the proximity sensor axial proximity distance calibration method is to manually adjust the second slide 3, insert the proximity sensor circuit board 10 into a certain position of the sensor housing 8, and read the value of the scale 6 through the pointer on the second slide 3 to determine the insertion distance. The host computer inputs the set position parameters according to the detection requirements, and the motor drives the first slide 2 to move on the linear guide 1, thereby driving the target 9 to move back and forth axially along the linear guide 1, calibrate the axial proximity distance of the proximity sensor until the technical requirements of the proximity sensor sensitivity are met, read the displacement value on the servo motor encoder, that is, the position of the target 9, and determine the axial installation size between the proximity sensor circuit board 10 and the sensing end of the sensor housing 8 through the displacement difference.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a first fixing member 4 is fixedly installed on the upper ends of the first slide 2 and the second slide 3. The first fixing member 4 consists of a base plate 11, an L-shaped plate 12, a first rubber pad 13, a square rod 14, a spring 15 and a baffle 16. The L-shaped plate 12 is fixedly installed on the upper end of the base plate 11, the first rubber pad 13 is fixedly installed in the L-shaped plate 12, the square rod 14 is fixedly installed on the upper end of the L-shaped plate 12, the spring 15 is sleeved on the square rod 14, and the baffle 16 is fixedly installed on the upper end of the square rod 14. A second fixing member 5 is movably installed on the first fixing member 4. The second fixing member 5 consists of a pressing plate 18 and a second rubber pad 19. The second rubber pad 19 is fixedly installed in the pressing plate 18. The target 9 is installed on the first fixing member 4 and the second fixing member 5 installed on the first slide 2. The proximity sensor circuit board 10 is installed on the first fixing member 4 and the second fixing member 5 installed on the second slide 3. The substrate 11 is fixedly connected to the first slide 2 and the second slide 3, a first arc groove 17 is provided at the upper end of the L-shaped plate 12, the first rubber pad 13 is fixedly installed in the first arc groove 17, a second arc groove 21 is provided at the lower end of the pressure plate 18 on the second fixing member 5, the second rubber pad 19 is fixedly installed in the second arc groove 21, a square hole 20 is also provided on the pressure plate 18, the pressure plate 18 is slidably installed on the square rod 14 through the square hole 20, and the pressure plate 18 is located below the spring 15, by arranging the first fixing member 4 and the second fixing member 5 on the first slide 2 and the second slide 3, and installing the target 9 and the proximity sensor circuit board 10 on the first fixing member 4 and the second fixing member 5 at the same time, the installation steps of the target 9 and the proximity sensor circuit board 10 can be made simpler and more convenient, thereby improving the installation efficiency of the target 9 and the proximity sensor circuit board 10, and then improving the efficiency of the spacing calibration.

[0022] It should be noted that the utility model is a proximity sensor axial proximity distance calibration device. When using the installation target 9 and the proximity sensor circuit board 10, the target 9 can be installed and fixed on the first fixing member 4 and the second fixing member 5 set on the first slide 2, and the proximity sensor circuit board 10 can be installed and fixed on the first fixing member 4 and the second fixing member 5 set on the second slide 3. The method is to first pull the second fixing member 5 upward, at this time, the pressure plate 18 will slide upward on the square rod 14, so that the spring 15 will be compressed by the pressure plate 18, and then the target 9 or the proximity sensor circuit board 10 can be placed on the first rubber pad 13, and then the second fixing member 5 is released. At this time, under the elastic force of the spring 15, the pressure plate 18 and the second rubber pad 19 will move downward, and finally the second rubber pad 19 will be pressed on the target 9 or the proximity sensor circuit board 10, and the target 9 or the proximity sensor circuit board 10 is fixed.

[0023] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A proximity sensor axial proximity distance calibration device, comprising a linear guide rail (1), a target (9) and a proximity sensor circuit board (10), wherein a first slide (2) and a second slide (3) are mounted on the linear guide rail (1), characterized in that: A first fixing member (4) is fixedly mounted on the upper ends of the first slide (2) and the second slide (3); the first fixing member (4) comprises a base plate (11), an L-shaped plate (12), a first rubber pad (13), a square rod (14), a spring (15) and a baffle (16); the L-shaped plate (12) is fixedly mounted on the upper end of the base plate (11); the first rubber pad (13) is fixedly mounted inside the L-shaped plate (12); the square rod (14) is fixedly mounted on the upper end of the L-shaped plate (12); the spring (15) is sleeved on the square rod (14); The baffle (16) is fixedly mounted on the upper end of the square rod (14); a second fixing member (5) is movably mounted on the first fixing member (4); the second fixing member (5) is composed of a pressure plate (18) and a second rubber pad (19); the second rubber pad (19) is fixedly mounted in the pressure plate (18); the target (9) is mounted on the first fixing member (4) and the second fixing member (5) mounted on the first slide (2); and the proximity sensor circuit board (10) is mounted on the first fixing member (4) and the second fixing member (5) mounted on the second slide (3).

2. The proximity sensor axial proximity distance calibration device according to claim 1, characterized in that: A scale (6) is fixedly mounted on one end of the linear guide rail (1), a mounting bracket (7) is fixedly mounted on the other end of the linear guide rail (1), and the mounting bracket (7) is located between the first slide (2) and the second slide (3), and a sensor housing (8) is fixedly mounted on the mounting bracket (7).

3. The proximity sensor axial proximity distance calibration device according to claim 2, characterized in that: A pointer is fixedly mounted on each of the first slide (2) and the second slide (3).

4. The proximity sensor axial proximity distance calibration device according to claim 3, characterized in that: The base plate (11) on the first fixing member (4) is fixedly connected to the first slide table (2) and the second slide table (3); a first arc-shaped groove (17) is provided at the upper end of the L-shaped plate (12); and the first rubber pad (13) is fixedly installed in the first arc-shaped groove (17).

5. The proximity sensor axial proximity distance calibration device according to claim 4, characterized in that: A second arc groove (21) is provided at the lower end of the pressure plate (18) on the second fixing member (5), and the second rubber pad (19) is fixedly installed in the second arc groove (21). A square hole (20) is also provided on the pressure plate (18), and the pressure plate (18) is slidably installed on the square rod (14) through the square hole (20), and the pressure plate (18) is located below the spring (15).

6. The proximity sensor axial proximity distance calibration device according to claim 5, characterized in that: The target (9) and the proximity sensor circuit board (10) are both fixed between the first rubber pad (13) and the second rubber pad (19).

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