Proximity sensor angle testing device

Abstract

The utility model relates to the technical field of sensor testing, in particular to a proximity sensor angle testing device, which comprises an angle regulator, a distance regulator and a controller, and is characterized in that the angle regulator comprises an angle regulating seat and an angle regulating part, the angle regulating part is used for mounting an inductance type proximity sensor, and the angle regulating part is rotationally connected with the angle regulating seat; the distance adjustor is arranged on one side of the angle adjustor in the direction perpendicular to the axis of the rotating shaft of the angle adjusting piece, the distance adjustor is used for installing the detection piece, and the distance adjustor is configured to be capable of driving the detection piece to be relatively close to or relatively away from the inductance type proximity sensor; the controller is electrically connected with the proximity sensor and the distance regulator, and the controller is used for receiving an output signal of the inductance type proximity sensor and obtaining the moving distance of the distance regulator when the inductance type proximity sensor does not output the signal. According to the utility model, the induction interval can be accurately obtained, and safe and reliable operation of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sensor testing, in particular to a proximity sensor angle testing device. Background Art

[0002] With the development of modern industrial automation industry, the requirements for the operating efficiency and safety of each unit and module in the production process are getting higher and higher. Compared with contact detection such as limit sensors, proximity sensors can detect without contacting the detection object, effectively ensuring the operating efficiency and safety of each unit and module, and are an indispensable part of modern industrial automation.

[0003] There are many types of proximity sensors. For example, an inductive proximity sensor includes an oscillation circuit, a signal trigger, and a switching amplifier. The coil of the oscillation circuit can generate a high-frequency variable magnetic field, which is released through the sensing surface of the sensor. When a metal object touches the sensing surface, it will generate eddy currents and absorb the magnetic field energy, causing the inductance of the coil to change, thereby reducing the oscillation frequency of the oscillation circuit and even stopping the oscillation. The signal trigger can detect the oscillation and stopping phenomena and convert them into switching signals.

[0004] In actual use, due to the limitation of installation space, the inductive proximity sensor will be installed in an offset manner at a certain angle to the detection object, which will cause a certain change in its sensing range. In the prior art, the proximity sensor test device is only suitable for testing the inductive proximity sensor installed in a plane. When facing the inductive proximity sensor installed in an offset manner, its detection result has deviations, which is difficult to meet the detection requirements, and the equipment where the sensor is installed is prone to safety hazards. Utility Model Content

[0005] To this end, the technical problem to be solved by the utility model is to overcome the difficulty of existing proximity sensor testing devices in accurately detecting offset-mounted inductive proximity sensors, and to provide a proximity sensor angle testing device that can accurately obtain the sensing range to ensure safe and reliable operation of the equipment.

[0006] The utility model provides a proximity sensor angle testing device, comprising an angle adjuster, wherein the angle adjuster comprises an angle adjustment seat and an angle adjustment piece, wherein the angle adjustment piece is used to install an inductive proximity sensor, and the angle adjustment piece is rotatably connected to the angle adjustment seat; a distance adjuster, wherein the distance adjuster is arranged on one side of the angle adjuster in a direction perpendicular to the axis of a rotating shaft of the angle adjustment piece, wherein the distance adjuster is used to install a detection piece, and wherein the distance adjuster is configured to be able to drive the detection piece to be relatively close to or relatively far away from the inductive proximity sensor; and a controller, wherein the controller is electrically connected to the proximity sensor and the distance adjuster, respectively, and wherein the controller is used to receive an output signal of the inductive proximity sensor, and to obtain a moving distance of the distance adjuster when the inductive proximity sensor has no output signal.

[0007] In one embodiment of the utility model, the angle adjustment seat includes a first adjustment component and a second adjustment component arranged relatively to each other, a guide groove for guiding the rotation of the angle adjustment component is formed between the first adjustment component and the second adjustment component, the angle adjustment component is arranged in the guide groove, and the angle adjustment component is rotatably connected to the first adjustment component and the second adjustment component respectively.

[0008] In one embodiment of the utility model, an arc groove is formed on the first adjusting component and the second adjusting component, and the arc groove extends along the circumferential direction of the axis of the rotating shaft of the angle adjusting component. The angle adjuster also includes an angle fixing component, and the angle fixing component passes through the arc groove and is connected to the angle adjusting component.

[0009] In one embodiment of the present invention, the angle adjuster further comprises a height adjustment seat, and the angle adjustment seat is detachably connected to the height adjustment seat.

[0010] In one embodiment of the present invention, the angle adjuster further comprises a first guide component, the first guide component is provided with a detection guide portion adapted to the detection member, and the detection guide portion is slidably connected to the detection member.

[0011] In one embodiment of the utility model, the distance adjuster includes a mounting component and a distance driving component, the mounting component is used to mount the detection component, the driving end of the distance driving component is connected to the mounting component, and the distance driving component is used to drive the mounting component to be relatively close to or relatively away from the inductive proximity sensor.

[0012] In one embodiment of the utility model, the distance adjuster further comprises a second guide component, the second guide component is provided with a first guide portion, the mounting component is provided with a second guide portion adapted to the first guide portion, and the second guide portion is slidably connected to the first guide portion.

[0013] In one embodiment of the present invention, the distance adjuster further comprises a distance measuring component, and the distance measuring component is configured to obtain the moving distance of the mounting component.

[0014] In one embodiment of the present invention, the distance measuring component is configured as a micrometer.

[0015] In one embodiment of the utility model, the distance driving member includes a servo motor and a transmission screw, the servo motor is electrically connected to the controller, one axial end of the transmission screw is connected to the output shaft of the servo motor, and the mounting component is movably connected to the transmission screw.

[0016] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0017] The proximity sensor angle test device described in the utility model simulates the scene when the inductive proximity sensor is used by setting an angle adjuster, so that the inductive proximity sensor can be at a certain angle with the detection piece during the test process, and at the same time, cooperates with the distance adjuster and the controller to realize the test of the sensing range of the inductive proximity sensor. The sensing range of the inductive proximity sensor at a special installation angle can be accurately obtained, so as to better set the corresponding equipment and ensure its operation safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram of the structure of a proximity sensor angle testing device in a preferred embodiment of the utility model;

[0020] Figure 2 This is a structural schematic diagram of an angle adjuster in a preferred embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the distance adjuster in the preferred embodiment of the utility model.

[0022] Explanation of the reference numerals in the specification: 11. Angle adjustment seat; 1111. First adjustment component; 1112. Second adjustment component; 1113. Guide groove; 1114. Arc groove; 12. Angle adjustment member; 13. Height adjustment seat; 14. First guide member; 20. Inductive proximity sensor; 30. Distance adjuster; 31. Mounting member; 311. Detection member; 32. Distance driving member; 33. Second guide member; 34. Distance measuring member; 40. Controller. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1 and Figure 2 As shown, the utility model discloses a proximity sensor angle testing device, including an angle adjuster, a distance adjuster 30 and a controller 40.

[0025] The angle adjuster is used to simulate the scene when the inductive proximity sensor 20 is used, so that the inductive proximity sensor 20 can be at a certain angle with the detection member 311 during the test. Specifically, the angle adjuster includes an angle adjustment seat 11 and an angle adjustment member 12. Among them, the angle adjustment member 12 is used to install the inductive proximity sensor 20; preferably, the angle adjustment member 12 is detachably connected to the inductive proximity sensor 20, so as to facilitate the testing of different types of inductive proximity sensors 20; preferably, the angle adjustment member 12 is set as a quick-release structure, so as to facilitate the rapid disassembly and assembly of the inductive proximity sensor 20. The angle adjustment member 12 is rotatably connected to the angle adjustment seat 11. By setting this structure, the conditions of different installation angles can be simulated, so as to test the range of the sensing range of the inductive proximity sensor 20 under different installation angles, so as to facilitate the precise installation and setting of the inductive proximity sensor 20, thereby ensuring the operating safety and reliability of the corresponding equipment.

[0026] The distance adjuster 30 is used to set the detection member 311 to be detected by the inductive proximity sensor 20, and drive the detection member 311 to move relative to the inductive proximity sensor 20, so as to simulate the situation during the actual use of the inductive proximity sensor 20 to detect the size of the sensing range of the inductive proximity sensor 20. Specifically, the distance adjuster 30 is set on one side of the angle adjuster in a direction perpendicular to the axis of the rotating shaft of the angle adjustment member 12, so as to conveniently obtain the range of the sensing range of the inductive proximity sensor 20. The distance adjuster 30 is used to install the detection member 311, and the distance adjuster 30 is configured to be able to drive the detection member 311 relatively close to or relatively away from the inductive proximity sensor 20. Those skilled in the art can set a specific distance adjuster 30 according to actual needs, as long as the distance adjustment can be achieved to detect the range of the sensing range.

[0027] The controller 40 is electrically connected to the proximity sensor and the distance adjuster 30, respectively. The controller 40 is used to receive the output signal of the inductive proximity sensor 20, and obtain the moving distance of the distance adjuster 30 when the inductive proximity sensor 20 has no output signal. When the inductive proximity sensor 20 has no output signal, it means that the detection member 311 has been displaced outside the sensing range of the inductive proximity sensor 20. At this time, the range of the sensing range of the inductive proximity sensor 20 can be obtained by the moving distance of the distance adjuster 30. Preferably, the controller 40 is also electrically connected to a host computer, and a database is set in the host computer, which contains relevant parameters of different types of inductive proximity sensors 20, so that the staff can call parameter information according to the inductive proximity sensor 20 actually tested; in addition, it can also record data such as the moving distance and the output voltage of the sensor to convert it into a curve of voltage and moving distance, so as to output a test report.

[0028] Specifically, when in use, first fix the detection member 311 to the reset distance adjuster 30, and at the same time fix the inductive proximity sensor 20 to be detected to the angle adjustment member 12. Then, adjust the relative angle between the angle adjustment member 12 and the angle adjustment seat 11 to simulate the installation angle of the measured inductive proximity sensor 20 during actual installation. Next, start the inductive proximity sensor 20, and drive the detection member 311 relatively away from the inductive proximity sensor 20 through the distance adjuster 30. In this process, since the detection member 311 is located in the sensing range of the inductive proximity sensor 20, the inductive proximity sensor 20 can feedback voltage and output a switch signal. When the distance adjuster 30 drives the detection member 311 to move out of the sensing range of the inductive proximity sensor 20, since the detection member 311 cannot be detected, the inductive proximity sensor 20 has no output signal, and the moving distance of the distance adjuster 30 is recorded by the controller 40. Repeated measurements are taken to obtain the sensing range of the inductive proximity sensor 20.

[0029] The proximity sensor angle test device of the utility model simulates the scene when the inductive proximity sensor 20 is used by setting an angle adjuster, so that the inductive proximity sensor 20 can be at a certain angle with the detection member 311 during the test process, and at the same time, cooperates with the distance adjuster 30 and the controller 40 to implement the test of the sensing range of the inductive proximity sensor 20. The sensing range of the inductive proximity sensor 20 at a special installation angle can be accurately obtained, so as to better set the corresponding equipment and ensure its operation safety and reliability.

[0030] Reference Figure 2As shown, in the proximity sensor angle testing device described in the utility model, in some embodiments, the angle adjustment seat 11 includes a first adjustment component 1111 and a second adjustment component 1112 that are arranged opposite to each other. A guide groove 1113 for guiding the rotation of the angle adjustment member 12 is formed between the first adjustment component 1111 and the second adjustment component 1112. The angle adjustment member 12 is arranged in the guide groove 1113, and the angle adjustment member 12 is rotatably connected to the first adjustment component 1111 and the second adjustment component 1112 respectively. By providing the guide groove 1113, it is possible to facilitate the angle adjustment member 12 not to deviate during the rotation process, so as to ensure that it can be accurately rotated to the corresponding angle, simulate the actual installation angle of the inductive proximity sensor 20, and thus accurately obtain its sensing range.

[0031] Further, see Figure 2 As shown, in the proximity sensor angle testing device described in the utility model, in some embodiments, an arc groove 1114 is provided on the first adjustment component 1111 and the second adjustment component 1112. The arc groove 1114 extends in the circumferential direction of the axis of the rotating shaft of the angle adjustment member 12, and the angle adjuster also includes an angle fixing member, which passes through the arc groove 1114 and is connected to the angle adjustment member 12. The angle fixing member is not shown in the accompanying drawings, and those skilled in the art can set a specific angle fixing member according to actual needs, such as a combination of bolts and nuts. By setting an angle fixing member, it is more stable than by manual fixing, and the accuracy and reliability of the test results can be guaranteed. Preferably, an angle mark is provided next to the arc groove 1114 so that the staff can easily identify the actual angle of the angle adjustment member 12 through the angle mark.

[0032] Reference Figure 1 As shown, in the proximity sensor angle test device described in the utility model, in some embodiments, the angle adjuster also includes a height adjustment seat 13, and the angle adjustment seat 11 can be detachably connected to the height adjustment seat 13. During the actual test, the device is set on a test table. By connecting the angle adjustment seat 11 to the test table through the corresponding height adjustment seat 13, it is convenient to replace different height adjustment seats 13 according to the actual installation environment, thereby more accurately simulating the installation environment of the inductive proximity sensor 20, so as to accurately obtain the sensing range of the inductive proximity sensor 20. Those skilled in the art can set a specific detachable connection method according to actual needs, such as threaded connection, clamping, etc.

[0033] Reference Figure 1 and Figure 2As shown, the angle test device for the proximity sensor described in the utility model, in some embodiments, the angle adjuster also includes a first guide component 14, and a detection guide portion adapted to the detection member 311 is provided on the first guide component 14, and the detection guide portion is slidably connected to the detection member 311. By setting the first guide component 14, the detection guide portion thereof can cooperate with the corresponding detection member 311 to improve the stability during the displacement process, so as to accurately obtain the sensing range of the inductive proximity sensor 20. Preferably, the detection member 311 is a component with an arc-shaped structure, and therefore, the detection guide portion is set to an arc-shaped guide structure adapted to the arc shape, so that the two can better cooperate.

[0034] Reference Figure 3 As shown, in the proximity sensor angle testing device described in the utility model, in some embodiments, the distance adjuster 30 includes a mounting component 31 and a distance driving component 32. The mounting component 31 is used to mount the detection component 311; preferably, the two are detachably connected. The driving end of the distance driving component 32 is connected to the mounting component 31, and the distance driving component 32 is used to drive the mounting component 31 to be relatively close to or relatively away from the inductive proximity sensor 20. Those skilled in the art can set the specific distance driving component 32 according to actual needs, and no further description is given.

[0035] Further, see Figure 3 As shown, in the proximity sensor angle testing device described in the utility model, in some embodiments, the distance adjuster 30 further includes a second guide component 33. The second guide component 33 is provided with a first guide portion, and the mounting component 31 is provided with a second guide portion adapted to the first guide portion, and the second guide portion and the first guide portion are slidably connected. Preferably, the second guide component 33 is configured as a slide rail or a guide column, so as to cooperate with the mounting component 31, stably and reliably realize the driving of the detection member 311, so as to accurately obtain the sensing range of the inductive proximity sensor 20.

[0036] Further, see Figure 3 As shown, in the proximity sensor angle test device described in the utility model, in some embodiments, the distance adjuster 30 also includes a distance measuring component 34, and the distance measuring component 34 is configured to obtain the moving distance of the installation component 31. By setting the distance measuring component 34, the moving distance of the installation component 31 can be measured, and the distance can be compared with the moving distance recorded by the distance driving member 32 itself to obtain a more accurate value, thereby improving the test accuracy of the device. Those skilled in the art can set the specific distance measuring component 34 according to actual needs, and will not be repeated here.

[0037] Furthermore, in the proximity sensor angle test device described in the utility model, in some embodiments, the distance measuring component 34 is set as a micrometer. The micrometer belongs to the prior art, and includes components such as a fixed sleeve, a differential cylinder, and a micrometer screw. After moving, the micrometer screw can be rotated with the angle adjustment seat 11 as a reference, and the moving distance of the mounting component 31 can be obtained by matching the corresponding scale. Compared with other components, it is more sophisticated, can accurately obtain the distance, and improves the space utilization rate.

[0038] Further, see Figure 3 As shown, in the proximity sensor angle test device of the utility model, in some embodiments, the distance driving member 32 includes a servo motor and a transmission screw, the servo motor is electrically connected to the controller 40, one axial end of the transmission screw is connected to the output shaft of the servo motor, and the mounting component 31 is movably connected to the transmission screw. By setting this structure, the movement of the mounting component 31 can be accurately controlled.

[0039] Working principle:

[0040] During the test, the inductive proximity sensor 20 to be tested is fixed to the angle adjustment member 12, and the relative angle between the angle adjustment member 12 and the angle adjustment seat 11 is adjusted, for example, to 60°. After the detection member 311 is fixed to the mounting member 31, the mounting member 31 and the detection member 311 are moved to the initial position by the servo motor. At this time, the sensor is turned on and the initial position information and the output voltage of the sensor are recorded.

[0041] The controller 40 sets the moving range and moving accuracy of the servo motor, for example, it is set to 0 to 11 mm, and the measurement is performed every 0.1 mm. Subsequently, the servo motor drives the mounting component 31 to move according to the corresponding parameters, and records the distance and the feedback voltage of the inductive proximity sensor 20 in real time. When the distance regulator 30 drives the detection member 311 to move out of the sensing interval of the inductive proximity sensor 20, the inductive proximity sensor 20 has no output voltage feedback because the detection member 311 cannot be detected. At this time, reset again and repeat the test 2 to 3 times.

[0042] After the test is completed, the moving distance and the voltage value are fitted to obtain the sensing curve of the inductive proximity sensor 20, so that the staff can understand its sensing range according to the curve.

[0043] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A proximity sensor angle testing device, characterized in that: include: An angle adjuster, the angle adjuster comprises an angle adjustment seat and an angle adjustment member, the angle adjustment member is used to install the inductive proximity sensor, and the angle adjustment member is rotatably connected to the angle adjustment seat; A distance adjuster, the distance adjuster is arranged on one side of the angle adjuster in a direction perpendicular to the axis of the rotating shaft of the angle adjuster, the distance adjuster is used to install the detection member, and the distance adjuster is configured to be able to drive the detection member to be relatively close to or relatively away from the inductive proximity sensor; A controller is electrically connected to the proximity sensor and the distance adjuster, and is used to receive an output signal of the inductive proximity sensor and obtain a moving distance of the distance adjuster when the inductive proximity sensor has no output signal.

2. The proximity sensor angle testing device according to claim 1, characterized in that: The angle adjustment seat includes a first adjustment component and a second adjustment component arranged opposite to each other, a guide groove for guiding the rotation of the angle adjustment component is formed between the first adjustment component and the second adjustment component, the angle adjustment component is arranged in the guide groove, and the angle adjustment component is rotatably connected to the first adjustment component and the second adjustment component respectively.

3. The proximity sensor angle testing device according to claim 2, characterized in that: The first adjusting component and the second adjusting component are both provided with an arc groove, which extends along the circumferential direction of the axis of the rotating shaft of the angle adjusting component. The angle adjuster also includes an angle fixing component, which passes through the arc groove and is connected to the angle adjusting component.

4. The proximity sensor angle testing device according to claim 1, characterized in that: The angle adjuster also includes a height adjustment seat, and the angle adjustment seat is detachably connected to the height adjustment seat.

5. The proximity sensor angle testing device according to any one of claims 1 to 4, characterized in that: The angle adjuster further comprises a first guide component, on which a detection guide portion adapted to the detection component is provided, and the detection guide portion is slidably connected to the detection component.

6. The proximity sensor angle testing device according to claim 1, characterized in that: The distance adjuster includes a mounting component and a distance driving component, wherein the mounting component is used to mount the detection component, a driving end of the distance driving component is connected to the mounting component, and the distance driving component is used to drive the mounting component to be relatively close to or relatively far away from the inductive proximity sensor.

7. The proximity sensor angle testing device according to claim 6, characterized in that: The distance adjuster further comprises a second guide component, the second guide component is provided with a first guide portion, the mounting component is provided with a second guide portion adapted to the first guide portion, and the second guide portion is slidably connected to the first guide portion.

8. The proximity sensor angle testing device according to claim 6, characterized in that: The distance adjuster further includes a distance measuring component configured to be able to acquire a moving distance of the mounting component.

9. The proximity sensor angle testing device according to claim 8, characterized in that: The distance measuring component is configured as a micrometer.

10. The proximity sensor angle testing device according to claim 6, characterized in that: The distance driving member comprises a servo motor and a transmission screw, the servo motor is electrically connected to the controller, one axial end of the transmission screw is connected to the output shaft of the servo motor, and the mounting component is movably connected to the transmission screw.

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