Rapid tool for indirectly measuring magnetic conductivity of signal wheel

Abstract

The utility model discloses a quick tool for indirectly measuring the magnetic conductivity of a signal wheel, which comprises a bottom plate and a chip programming box, a plurality of vertical rods are fixed on the upper surface of the bottom plate, the top ends of the plurality of vertical rods are fixedly connected with a top plate, the middle part of the top plate is provided with a hollow groove, the lower surface of the top plate is provided with a high-precision standard sensor, and the chip programming box is fixedly connected with the top plate. A tool pushing barrel is fixed to the upper surface of the bottom plate and located below the high-precision standard sensor. According to the utility model, the rapid tool pressing tongue, the top plate, the high-precision standard sensor and the tool pushing barrel are arranged, the metal target wheel is placed on the top plate, and the signal amplitude value of the high-precision standard sensor is read through the chip programming box, so that whether the influence of the magnetic permeability of the metal target wheel on the precision of the eddy current sensor is within a reasonable range is judged. The tool not only greatly simplifies the method for detecting the magnetic permeability of the metal target wheel, but also reduces the cost, increases the reliability of the product function, and improves the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of eddy current sensor measurement technology, and in particular to a rapid tooling for indirectly measuring the permeability of a signal wheel. Background Technology

[0002] With the rapid development of electric drive systems in new energy vehicles, eddy current sensors for detecting the position of motor rotors are increasingly being used. Since the permeability of the metal target wheel material of the motor rotor has a significant impact on the accuracy of eddy current sensors, currently, neither domestically nor internationally, there is equipment available to directly measure the permeability of the motor rotor's metal material. This makes it impossible to control the permeability of different metal materials; adjustments can only be made based on the actual performance measured by the eddy current sensor manufacturer.

[0003] Since the permeability of the target wheel of the motor rotor is related to factors such as the batch of raw metal materials, heat treatment process, and machining sequence, changes in the production process and raw material batch of the metal target wheel will result in differences in the electrical performance accuracy transmitted to the eddy current sensor manufacturer. In extreme cases, this can lead to a large number of defective products, resulting in the scrapping of a large quantity of motor rotor target wheels and increased costs. Therefore, this utility model proposes a rapid tooling for indirectly measuring the permeability of the signal wheel. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a rapid tooling for indirectly measuring the permeability of a signal wheel.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-access tooling for indirectly measuring the permeability of a signal wheel, comprising a base plate and a chip programming box. Multiple vertical rods are fixed to the upper surface of the base plate, and the top ends of the multiple vertical rods are jointly and fixedly connected to a top plate. A hollow groove is formed in the center of the top plate. A high-precision standard sensor is installed on the lower surface of the top plate. A tooling pusher is fixed to the upper surface of the base plate and below the high-precision standard sensor, and a top block is slidably connected inside the tooling pusher. A quick-access tooling pressure tongue for pushing the top block is provided on the upper surface of the base plate near the tooling pusher. The metal target wheel to be measured is placed in the hollow groove in the center of the top plate.

[0006] Furthermore, the high-precision standard sensor is connected to an external circuit harness, and the high-precision standard sensor is connected to the chip programming box through the external circuit harness.

[0007] Furthermore, a support seat is fixed on the upper surface of the base plate near the quick-release tooling tongue. The middle part of the quick-release tooling tongue is hinged to the top of the support seat. A slot is opened on the side of the tooling push barrel near the quick-release tooling tongue. The end of the quick-release tooling tongue near the tooling push barrel extends through the slot into the interior of the tooling push barrel.

[0008] Furthermore, a top rod is fixed at one end of the quick-release tooling tongue located inside the tooling push barrel, and the top end of the top rod is in contact with the lower surface of the top block.

[0009] The beneficial effects of this utility model are:

[0010] In use, this utility model provides a quick-access tooling for indirectly measuring the magnetic permeability of a signal wheel. It includes a quick-access tooling tongue, a top plate, a high-precision standard sensor, and a tooling pusher. The metal target wheel is placed on the top plate, and the signal amplitude value of the high-precision standard sensor is read through a chip programming box. This allows the user to determine whether the magnetic permeability of the metal target wheel affects the accuracy of the eddy current sensor within a reasonable range. This tooling not only greatly simplifies the method for detecting the magnetic permeability of metal target wheels but also reduces costs, increases product reliability, and improves production efficiency. Attached Figure Description

[0011] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 : Overall perspective view of this utility model;

[0013] Figure 2 : Overall sectional view of this utility model;

[0014] Figure 3 : Exploded view of this utility model;

[0015] Figure 4 : A three-dimensional view of the metal target wheel to be tested according to this utility model.

[0016] The attached figures are labeled as follows:

[0017] 1. Base plate; 2. Quick-release tooling tongue; 3. Top plate; 4. Metal target wheel; 5. High-precision standard sensor; 6. Tooling pusher; 7. Sensor external circuit harness; 8. Chip programming box. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figures 1-4 As shown, a quick-access tooling for indirectly measuring the permeability of a signal wheel is disclosed. The tooling includes a base plate 1 and a chip programming box 8. Multiple vertical rods are fixed on the upper surface of the base plate 1, and the top ends of the multiple vertical rods are fixedly connected to a top plate 3. A hollow groove is provided in the middle of the top plate 3. A high-precision standard sensor 5 is installed on the lower surface of the top plate 3. A tooling pusher 6 is fixed on the upper surface of the base plate 1 and below the high-precision standard sensor 5. A top block is slidably connected inside the tooling pusher 6. A quick-access tooling tongue 2 for pushing the top block is provided on the upper surface of the base plate 1 near the tooling pusher 6. The metal target wheel 4 to be measured is placed in the hollow groove in the middle of the top plate 3.

[0020] The high-precision standard sensor 5 is connected to the sensor external circuit harness 7, and the high-precision standard sensor 5 is connected to the chip programming box 8 through the sensor external circuit harness 7.

[0021] In this embodiment, after the high-precision standard sensor 5 and the chip programming box 8 are connected through the sensor external circuit harness 7, the chip programming box 8 can read the detection data of the high-precision standard sensor 5.

[0022] A support seat is fixed on the upper surface of the base plate 1 near the quick tooling tongue 2. The middle part of the quick tooling tongue 2 is hinged to the top of the support seat. A slot is opened on the side of the tooling push barrel 6 near the quick tooling tongue 2. The end of the quick tooling tongue 2 near the tooling push barrel 6 extends through the slot into the interior of the tooling push barrel 6.

[0023] In this embodiment, the quick-release tooling tongue 2 can rotate around the top of the support base, allowing one end of the quick-release tooling tongue 2 located inside the tooling push barrel 6 to tilt upwards. The slot provides space for the movement of the quick-release tooling tongue 2.

[0024] The quick-release tool tongue 2 is located inside the tool push barrel 6 and has a top rod fixed at one end. The top of the top rod is in contact with the lower surface of the top block.

[0025] When the end of the quick-release tooling tongue 2 located inside the tooling push barrel 6 tilts upward, the push rod can push the top block upward. The top block moves upward along the tooling push barrel 6, and the top block pushes the metal target wheel 4 upward, so that the metal target wheel 4 is pushed out from the hollow groove in the middle of the top plate 3, making it easy to pick up the metal target wheel 4.

[0026] Working principle: After placing the metal target wheel 4 to be tested in the hollow slot on the top plate 3, the high-precision standard sensor 5 is used to measure the metal target wheel 4. At this time, the signal amplitude value (A-ROTOR) of the high-precision standard sensor 5 is read through the chip programming box 8 to determine whether the magnetic permeability of the metal target wheel 4 has a reasonable impact on the accuracy of the eddy current sensor. After the measurement is completed, press down on the end of the quick-release tooling tongue 2 away from the tooling push barrel 6. Use the push rod on the quick-release tooling tongue 2 to push the top block upward, and use the top block to push out the metal target wheel 4. Then replace it with a different metal target wheel 4 and place it on the top plate 3 for testing to determine whether the magnetic permeability of the metal target wheel 4 after replacement has a reasonable impact on the accuracy of the eddy current sensor. Then repeat the above steps of replacing and testing the metal target wheel 4 to determine whether the impact of different magnetic permeabilities of different metal target wheels 4 on the accuracy of the eddy current sensor is within a reasonable range.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details and do not limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A rapid tooling for indirectly measuring the permeability of a signal wheel, characterized in that: The device includes a base plate (1) and a chip programming box (8). Multiple vertical rods are fixed on the upper surface of the base plate (1), and the top of the multiple vertical rods are fixedly connected to a top plate (3). A hollow groove is opened in the middle of the top plate (3). A high-precision standard sensor (5) is installed on the lower surface of the top plate (3). A tooling push barrel (6) is fixed on the upper surface of the base plate (1) and below the high-precision standard sensor (5). A top block is slidably connected inside the tooling push barrel (6). A quick tooling pressure tongue (2) for pushing the top block is provided on the side of the upper surface of the base plate (1) near the tooling push barrel (6). A metal target wheel (4) to be tested is placed in the hollow groove in the middle of the top plate (3).

2. The rapid tooling for indirectly measuring the permeability of a signal wheel according to claim 1, characterized in that: The high-precision standard sensor (5) is connected to an external circuit harness (7), and the high-precision standard sensor (5) is connected to the chip programming box (8) through the external circuit harness (7).

3. The rapid tooling for indirectly measuring the permeability of a signal wheel according to claim 1, characterized in that: A support seat is fixed on the upper surface of the base plate (1) near the quick tooling tongue (2). The middle part of the quick tooling tongue (2) is hinged to the top of the support seat. A slot is opened on the side of the tooling push barrel (6) near the quick tooling tongue (2). The end of the quick tooling tongue (2) near the tooling push barrel (6) extends through the slot into the interior of the tooling push barrel (6).

4. The rapid tooling for indirectly measuring the permeability of a signal wheel according to claim 3, characterized in that: The quick-release tool tongue (2) is fixed with a top rod at one end inside the tool push barrel (6), and the top of the top rod is in contact with the lower surface of the top block.

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