Inductive sensor pitch performance test fixture

Abstract

The utility model relates to an inductance type sensor fixed interval performance test frock. Including detection platform, the photoelectric sensor for inductance type sensor detection, the main shaft for driving photoelectric sensor rotation, the support seat for supporting main shaft, the drive arrangement for driving main shaft rotation, the mounting seat for supporting drive arrangement and the support frock for supporting inductance type sensor, support seat and mounting seat are installed at detection platform top respectively, drive arrangement is installed at mounting seat top end, main shaft is rotatably connected at support seat top end through bearing, drive arrangement is connected in one end of main shaft through shaft coupling drive. Solveed the prior art in the drive arrangement's rotating speed usually cannot high -speed rotation under no obvious vibration, lead to unable simulation sensor under high -speed rotation state real performance, the structure of test frock is fixed simultaneously, it is difficult to adapt to different models inductance type sensor, needs integral dismounting when replacing test object, the technical problem of low efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures, and in particular to a fixture for testing the fixed-spacing performance of inductive sensors. Background Technology

[0002] Inductive sensors are widely used in industrial automation, precision measurement, and other fields, and their performance stability directly affects the operating accuracy and reliability of equipment. In practical applications, the stability of the gap between the sensor stator and rotor is a key factor determining the accuracy of its signal output. However, existing testing devices generally suffer from problems such as insufficient rotational speed and poor structural adaptability, making it difficult to meet the performance testing requirements under high-speed or extreme operating conditions.

[0003] Currently, the main drawbacks of traditional testing fixtures are: the drive device usually cannot rotate at high speeds without significant vibration, making it impossible to simulate the real performance of the sensor under high-speed rotation. At the same time, the fixed structure of the testing fixture makes it difficult to adapt to different models of inductive sensors, and the entire fixture needs to be disassembled and reassembled when changing the test object, which is inefficient. Utility Model Content

[0004] This application provides a fixed-spacing performance testing fixture for inductive sensors, which solves the technical problems in the prior art where the speed of the drive device is usually not high enough to cause significant vibration, making it impossible to simulate the real performance of the sensor under high-speed rotation. At the same time, the fixed structure of the testing fixture makes it difficult to adapt to different models of inductive sensors, and the entire fixture needs to be disassembled and reassembled when changing the test object, resulting in low efficiency.

[0005] The technical solutions adopted in the embodiments of this application are as follows.

[0006] A fixture for testing the fixed-spacing performance of an inductive sensor includes a testing platform, a photoelectric sensor for detecting the inductive sensor, a main shaft for rotating the photoelectric sensor, a support base for supporting the main shaft, a drive device for driving the main shaft to rotate, a mounting base for supporting the drive device, and a support fixture for supporting the inductive sensor. The support base and the mounting base are respectively mounted on the top of the testing platform; the drive device is mounted on the top of the mounting base; the main shaft is rotatably connected to the top of the support base via a bearing; the drive device is driven to one end of the main shaft via a coupling; the photoelectric sensor is mounted on the other end of the main shaft; the support fixture is mounted on the support base, and the other end of the main shaft is connected to the output end of the support fixture.

[0007] As a further improvement to the above technical solution:

[0008] A further technical solution is as follows: the support fixture includes a Z-shaped plate, a stator support cage for fixing the stator of the inductive sensor, and a rotor support for driving the rotor of the inductive sensor to rotate; the Z-shaped plate is mounted on the support base; the other end of the main shaft is rotatably connected to the Z-shaped plate through a bearing; the rotor support is disposed at the other end of the main shaft; the stator support cage is disposed around the rotor support, and the stator support cage is mounted on the Z-shaped plate.

[0009] A further technical solution is that the driving device is an electric motor.

[0010] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0011] 1. By employing a testing platform, photoelectric sensor, spindle, support base, drive unit, mounting base, and supporting fixtures, and utilizing a high-speed motor in the drive unit, coupled with a rigid coupling and precision bearings, the spindle can rotate at high speeds without significant vibration, solving the problem that traditional testing fixtures cannot simulate extreme working conditions. The modular design of the supporting fixtures allows for quick replacement of the stator support cage and rotor support components for different sensor models, significantly improving the reusability and ease of operation of the testing fixtures. The testing platform, support base, and mounting base form a rigid support frame, effectively reducing vibration during high-speed operation and ensuring the stability and repeatability of the testing process.

[0012] 2. Due to the adoption of Z-shaped plates, stator support cages and rotor support components, the stator and rotor spacing is kept constant through the coordinated design of the stator support cage and rotor support components. Combined with high-precision photoelectric sensors, the reliability of test data is greatly improved. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a fixed-spacing performance testing fixture for an inductive sensor according to this utility model.

[0014] Figure 2 This is an overall cross-sectional view of a fixed-spacing performance testing fixture for an inductive sensor according to this utility model.

[0015] Figure 3 This is a schematic diagram illustrating a portion of the supporting fixture in this utility model.

[0016] In the diagram: 1. Testing table; 2. Photoelectric sensor; 3. Spindle; 4. Support base; 5. Drive unit; 6. Mounting base; 7. Support fixture; 71. Z-shaped plate; 72. Stator support cage; 73. Rotor support component; 8. Coupling. Detailed Implementation

[0017] This application provides a fixed-spacing performance testing fixture for inductive sensors, which solves the technical problems in the prior art where the speed of the drive device is usually not high enough to cause significant vibration, making it impossible to simulate the real performance of the sensor under high-speed rotation. At the same time, the fixed structure of the testing fixture makes it difficult to adapt to different models of inductive sensors, and the entire fixture needs to be disassembled and reassembled when changing the test object, resulting in low efficiency.

[0018] The technical solution in this application embodiment is to solve the above problems, and the overall idea is as follows:

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] A fixture for testing the fixed-spacing performance of inductive sensors, such as Figure 1 , Figure 2 Figure 3 As shown, the system includes a testing platform 1, a photoelectric sensor 2 for detecting inductive sensors, a main shaft 3 for driving the photoelectric sensor 2 to rotate, a support base 4 for supporting the main shaft 3, a drive device 5 for driving the main shaft 3 to rotate, a mounting base 6 for supporting the drive device 5, and a support fixture 7 for supporting the inductive sensor. The support base 4 and the mounting base 6 are respectively installed on the top of the testing platform 1. The drive device 5 is installed on the top of the mounting base 6. The main shaft 3 is rotatably connected to the top of the support base 4 through a bearing. The drive device 5 is driven to one end of the main shaft 3 through a coupling 8. The photoelectric sensor 2 is installed on the other end of the main shaft 3. The support fixture 7 is installed on the support base 4, and the other end of the main shaft 3 is connected to the output end of the support fixture 7.

[0021] The support fixture 7 includes a Z-shaped plate 71, a stator support cage 72 for fixing the stator of the inductive sensor, and a rotor support 73 for driving the rotor of the inductive sensor to rotate. The Z-shaped plate 71 is mounted on the support base 4. The other end of the main shaft 3 is rotatably connected to the Z-shaped plate 71 through a bearing. The rotor support 73 is located at the other end of the main shaft 3. The stator support cage 72 is arranged around the rotor support 73 and is mounted on the Z-shaped plate 71.

[0022] The drive unit 5 is a motor.

[0023] Support base 4 and mounting base 6 are fixed to the top of the testing table 1. The drive device 5 (such as a high-speed motor) is supported by the mounting base 6 and is connected to the main shaft 3 via a coupling 8. The main shaft 3 is mounted on the support base 4 via bearings, with one end connected to the photoelectric sensor 2 and the other end extending to the support fixture 7. The support fixture 7 includes a Z-shaped plate 71, a stator support cage 72, and a rotor support member 73. The Z-shaped plate 71 is fixed to the support base 4. The main shaft 3 is rotatably connected to the Z-shaped plate 71 via bearings. The rotor support member 73 is installed at the end of the main shaft 3 to drive the sensor rotor. The stator support cage 72 is arranged around the rotor support member 73 and fixed on the Z-shaped plate 71 to fix the sensor stator.

[0024] Operating procedures

[0025] During testing, the stator of the inductive sensor is fixed within the stator support cage 72, and the rotor is mounted on the rotor support 73. The drive unit 5 is activated, causing the rotor support 73 and the photoelectric sensor 2 to rotate synchronously at high speed via the spindle 3, simulating the sensor's dynamic performance under extreme conditions. The photoelectric sensor 2 detects the relative position signal between the rotor and stator in real time, and the stability of the sensor under fixed-gap conditions is evaluated by analyzing signal changes. When changing to different sensor models, only the customized support fixture 7 needs to be replaced; the entire structure does not need to be disassembled, significantly improving testing efficiency.

[0026] Beneficial effects

[0027] The setup of the testing platform 1, photoelectric sensor 2, spindle 3, support base 4, drive unit 5, mounting base 6, and support fixture 7, along with the high-speed motor in drive unit 5, combined with rigid coupling 8 and precision bearings, enables the spindle 3 to operate without significant vibration at high speeds, solving the problem of traditional testing fixtures being unable to simulate extreme working conditions. The modular design of support fixture 7 allows for quick replacement of the stator support cage 72 and rotor support component 73 for different sensor models, significantly improving the reusability and ease of operation of the testing fixture. The testing platform 1, support base 4, and mounting base 6 form a rigid support frame, effectively reducing vibration during high-speed operation and ensuring the stability and repeatability of the testing process. The use of Z-shaped plate 71, stator support cage 72, and rotor support component 73, through the coordinated design of stator support cage 72 and rotor support component 73, ensures a constant distance between the stator and rotor, and combined with the high-precision photoelectric sensor 2, greatly improves the reliability of the test data.

[0028] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0029] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fixture for testing the fixed-spacing performance of an inductive sensor, characterized in that: The device includes a testing platform (1), a photoelectric sensor (2) for detecting an inductive sensor, a main shaft (3) for driving the photoelectric sensor (2) to rotate, a support base (4) for supporting the main shaft (3), a drive device (5) for driving the main shaft (3) to rotate, a mounting base (6) for supporting the drive device (5), and a support fixture (7) for supporting the inductive sensor. The support base (4) and the mounting base (6) are respectively installed on the top of the testing platform (1). The drive device (5) is installed on the top of the mounting base (6). The main shaft (3) is rotatably connected to the top of the support base (4) through a bearing. The drive device (5) is connected to one end of the main shaft (3) through a coupling (8). The photoelectric sensor (2) is installed on the other end of the main shaft (3). The support fixture (7) is installed on the support base (4), and the other end of the main shaft (3) is connected to the output end of the support fixture (7).

2. The inductive sensor fixed-gap performance testing fixture according to claim 1, characterized in that: The support fixture (7) includes a Z-shaped plate (71), a stator support cage (72) for fixing the stator of the inductive sensor, and a rotor support (73) for driving the rotor of the inductive sensor to rotate. The Z-shaped plate (71) is mounted on the support base (4). The other end of the main shaft (3) is rotatably connected to the Z-shaped plate (71) through a bearing. The rotor support (73) is located at the other end of the main shaft (3). The stator support cage (72) is arranged around the rotor support (73) and is mounted on the Z-shaped plate (71).

3. The inductive sensor fixed-gap performance testing fixture according to claim 2, characterized in that: The driving device (5) is a motor.

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