Magnetic shoe profile tolerance detection device and detection method thereof

Abstract

The invention discloses a magnetic shoe profile tolerance detection device and a detection method thereof, and belongs to the technical field of magnetic shoe detection. The magnetic shoe profile tolerance detection device comprises a base, a mounting plate, an arc-sticking cylinder and a dial gauge component, the mounting plate is mounted on the top of the base, the bottom of the arc-sticking cylinder is mounted on the side wall of the mounting plate, and an arc-shaped cylinder body of the arc-sticking cylinder is used for placing a magnetic shoe; the dial gauge component and the arc-sticking cylinder are oppositely mounted on the base, and the dial gauge component can movably contact with or be far away from a magnetic shoe placed on the arc-sticking cylinder. In addition, the invention further provides a detection method of the magnetic shoe profile tolerance detection device. The magnetic shoe profile tolerance detection device provided by the invention realizes efficient and accurate detection of the profile tolerance of the magnetic shoe.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic tile detection, and in particular to a magnetic tile profile detection device and a detection method thereof. Background Art

[0002] Motors typically include at least two magnetic tiles, and sometimes as many as 36 or even more. The inner arc surface of the tile serves as the working or assembly surface. Its curvature, offset, and straightness are key dimensions that determine whether the tile meets motor requirements. These dimensions require focused inspection during the tile production and testing process.

[0003] The existing on-site technology is used to detect the contour. The first method is to design an outer arc gauge, use a brush to evenly apply red lead oil on the outer arc gauge surface, press the outer arc of the magnetic tile tightly on the inner and outer arc gauges, and observe the percentage of the red lead oil surface (spot area) of the inner and outer arcs of the magnetic tile to the entire contact area to determine whether the outer arc contour of the product meets the standard. However, this method cannot give an accurate value to determine whether the contour is within the tolerance range. The second method is to use three-coordinate detection. After the magnetic tile is clamped on the three-coordinate detection instrument, a ruby ​​probe is used to perform dot measurement, and the contour of the magnetic tile is fitted through the instrument's own calculations. This testing method is time-consuming and labor-intensive, and on-site testing is not convenient. In order to solve the convenience of on-site operation and the accuracy of data, and to solve the detection problems at the magnetic tile processing site, a detection device is provided that does not require professional equipment and can obtain ±0.02mm level contour deviation values ​​on-site in real time to solve the problems of low detection efficiency, insufficient accuracy, and complex operation in the existing technology. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and propose a magnetic tile profile detection device and a detection method thereof to solve the technical problems of low detection efficiency, insufficient accuracy and complex operation in the prior art.

[0005] In order to achieve the above-mentioned technical objectives, the technical solution of the present invention provides a magnetic tile contour detection device, comprising: a base, a mounting plate, an arc-fitting cylinder and an indicator component; the mounting plate is installed on the upper surface of the base, the bottom of the arc-fitting cylinder is installed on the side wall of the mounting plate, and the arc-shaped column body of the arc-fitting cylinder is used to place the magnetic tile; the indicator component is installed on the base opposite to the arc-fitting cylinder, and the indicator component can movably contact or move away from the magnetic tile placed on the arc-fitting cylinder.

[0006] In any embodiment, the indicator part includes a magnetic base, a universal support arm, a meter clamping device and an indicator; the bottom end of the universal support arm is magnetically connected to the upper surface of the magnetic base, the meter clamping device is connected to the top end of the universal support arm, the indicator is installed on the meter clamping device, and the indicator can move in contact with or away from the magnetic tile placed on the arc cylinder.

[0007] In any embodiment, a protrusion is provided on the side wall of the arc-conforming cylinder.

[0008] In any embodiment, the arc-conforming cylinder is a hollow cylinder with an open top.

[0009] In any embodiment, the cross section of the arc-conforming cylinder is annular.

[0010] In any embodiment, the device further comprises an adjusting screw, wherein the adjusting screw is disposed at the bottom of the base.

[0011] In any embodiment, there are multiple arc-conforming cylinders, and the multiple arc-conforming cylinders are sequentially arranged on the mounting plate from left to right.

[0012] In any embodiment, the indicator is a dial indicator or a micrometer.

[0013] In addition, the present invention also proposes a detection method of the magnetic tile profile detection device, comprising the following steps:

[0014] Place the magnetic tile to be tested on the body of the arc-fitting cylinder, then check whether the magnetic tile to be tested and the body of the arc-fitting cylinder are in good contact, then place the probe of the indicator component on the magnetic tile to be tested, and then calibrate the indicator to zero;

[0015] Press the magnetic tile to be tested and slide it left and right on the body of the arc cylinder, and observe and record the maximum and minimum values ​​of the indicator. The reading of the indicator during the sliding process is the deviation of the outer arc profile of the magnetic tile to be tested.

[0016] In any embodiment, when testing the inner arc profile of the magnetic tile, the magnetic tile to be tested is placed on the column of the arc-fitting cylinder, and then the magnetic tile to be tested and the cylinder are checked for fit, and then the probe of the indicator is placed on the magnetic tile to be tested, and then the indicator is calibrated to zero;

[0017] Press the magnetic tile to be tested and slide it on the body of the arc-attached cylinder, and observe and record the maximum and minimum values ​​of the indicator. The reading of the indicator during the sliding process is the deviation of the inner arc profile of the magnetic tile to be tested.

[0018] Compared with the prior art, the beneficial effects of the present invention include: the magnetic tile contour detection device proposed in the present invention includes: a base, a mounting plate, an arc-fitting cylinder and an indicator meter component; the mounting plate is installed on the top of the base, the bottom of the arc-fitting cylinder is installed on the side wall of the mounting plate, and the arc-shaped column body of the arc-fitting cylinder is used to place the magnetic tile; the indicator meter component is installed on the base opposite to the arc-fitting cylinder, and the indicator meter component can movably contact or move away from the magnetic tile placed on the arc-fitting cylinder, and the magnetic tile to be tested is placed on the arc-fitting cylinder. The probe of the indicator meter component contacts the surface of the magnetic tile, and the magnetic tile to be tested is pressed and slid left and right on the arc surface of the cylinder, and the maximum and minimum values ​​of the indicator meter are observed and recorded. The reading of the indicator meter during the sliding process is the deviation of the outer arc contour of the magnetic tile, thereby realizing efficient and accurate detection of the contour of the magnetic tile. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the magnetic tile contour detection device of Example 1 of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the arc-fitting cylinder of Example 1 of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the magnetic tile and indicator meter components of Example 1 of the present invention.

[0022] Figure 4 It is a structural diagram of the indicator meter component of Example 1 of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the magnetic tile contour detection device of Example 2 of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the arc-fitting cylinder of Example 2 of the present invention.

[0025] Explanation of the reference numerals: 0, magnetic tile; 1, base; 2, mounting plate; 3, arc-fitting cylinder; 31, protrusion; 4, indicator component; 41, magnetic base; 42, universal support arm; 43, meter clamping device; 44, indicator; 5, adjusting screw. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] Example 1

[0028] Combine Figure 1-4This embodiment provides a magnetic tile contour detection device, including: a base 1, a mounting plate 2, an arc-fitting cylinder 3 and an indicator component 4; the mounting plate 2 is mounted on the upper surface of the base 1, the bottom of the arc-fitting cylinder 3 is mounted on the side wall of the mounting plate 2, and the arc-shaped column of the arc-fitting cylinder 3 is used to place the magnetic tile; the indicator component 4 is mounted on the base 1 opposite to the arc-fitting cylinder 3, and the indicator component 4 can movably contact or move away from the magnetic tile placed on the arc-fitting cylinder 3.

[0029] Based on the above embodiment, the indicator portion of this embodiment includes a magnetic base 41, a universal arm 42, a meter clamping device 43, and an indicator 44; the bottom end of the universal arm 42 is magnetically connected to the upper surface of the magnetic base 41, the meter clamping device 43 is connected to the top end of the universal arm 42, and the indicator 44 is mounted on the meter clamping device 43. The indicator 44 can move to contact or move away from the magnetic tile placed on the arc-fitting cylinder 3. The magnetic base 41 has a cylinder inside, and a bar permanent magnet or a constant magnet is placed inside the cylinder. The magnetic base 41 is made of soft magnetic material; the universal arm 42 usually has multiple movable connection joints, which can achieve multi-angle rotation and positioning; the meter clamping device 43 has a fine-tuning device for clamping and adjusting the indicator 44. When the magnet's poles are oriented vertically, with the N or S pole facing the magnetic base 41, the soft magnetic material of the magnetic base 41 is magnetized. At this point, the base has a strong magnetism and can be attracted to the steel surface of the universal arm 42. When the magnet's poles are horizontally oriented, with the center of the N-S pole facing the soft magnetic material base, the magnetism in the center of the long magnet is minimal, the soft magnetic material is not magnetized, and the base has almost no magnetic force, allowing it to be easily removed from the steel base surface of the universal arm 42. The universal arm 42 can be fixed at any angle, allowing the position and direction of the indicator 44 to be easily and quickly adjusted to suit the needs of different measurement scenarios and improve work efficiency. The magnetic base has different levels of suction, ranging from 2kg to 160kg. The appropriate suction base can be selected according to actual needs to ensure that the base is firmly attached to the steel surface during the measurement process, ensuring measurement stability and accuracy.

[0030] The clamping device can make fine adjustments to the measuring tool and adjust the direction and positioning at will, which helps to improve the measurement accuracy.

[0031] In this embodiment, based on the above embodiment, a protrusion 31 is provided on the side wall of the arc-adapting cylinder 3 to prevent the magnetic tile from falling. In this embodiment, the protrusion 31 is provided on the left side wall of the arc-adapting cylinder 3. This does not affect the sliding of the magnetic tile on the side wall of the arc-adapting cylinder 3, but can prevent the magnetic tile from falling.

[0032] Building on the previous embodiment, this embodiment also includes adjustment screws 5 located at the bottom of the base 1. Four adjustment screws 5 are located at the four corners of the base 1. These screws are used to level the fixture, and the profile detection fixture is then calibrated using magnetic tile standards. The device must ensure the flatness of the base plate is within ±0.02, the perpendicularity between the vertical plate and the base plate is within ±0.02, the diameter tolerance of the arc-shaped cylinder 3 is ±0.02, and the horizontality is ±0.02.

[0033] Based on the above embodiment, this embodiment includes multiple arc-adhering cylinders 3, which are sequentially arranged on the mounting plate 2 from left to right. The multiple arc-adhering cylinders 3 can be of different models, allowing the profile of magnetic tiles of different specifications to be measured without frequent component replacement. For example, the number of arc-adhering cylinders 3 can be two, three, or four. Specifically, in this embodiment, three different models of arc-adhering cylinders 3 are arranged from left to right, allowing the profile of three different sizes of magnetic tiles to be tested using a single device.

[0034] On the basis of the above embodiment, the indicator gauge 44 is a dial indicator or a micrometer. The indicator gauge 44 used in this embodiment is a dial indicator.

[0035] On the basis of the above embodiment, the base 1 and the mounting plate 2 of this embodiment are 45# steel plates (quenched HRC40) or aluminum alloy plates (7075-T6).

[0036] This embodiment further provides a detection method for the magnetic tile profile detection device, comprising the following steps:

[0037] When testing the outer arc profile of the magnetic shoe 0, first adjust the level of the tooling by adjusting screw 5, and then calibrate the profile detection tooling using the magnetic shoe standard parts;

[0038] Then place the magnetic tile 0 to be tested on the body of the arc-attached cylinder 3, check whether the magnetic tile 0 to be tested and the body of the arc-attached cylinder 3 are in contact with each other, then place the probe of the indicator component 4 on the magnetic tile 0 to be tested, and then calibrate the indicator 44 to zero;

[0039] Press the magnetic tile 0 to be tested and slide it left and right on the body of the arc-attached cylinder 3, and observe and record the maximum and minimum values ​​of the indicator 44. The reading of the indicator 44 during the sliding process is the deviation of the outer arc profile of the magnetic tile 0 to be tested.

[0040] In this embodiment, the specifications of the magnetic tile 0 are: outer diameter φ50mm×inner diameter φ40mm×height 20mm.

[0041] Testing steps:

[0042] 1) Use a φ50mm arc cylinder 3 to calibrate the device and adjust the dial indicator to zero;

[0043] 2) After grinding, the inner arc of the magnetic tile 0 fits the cylinder and slides along the arc surface 3 times;

[0044] 3) Read the dial indicator's runout range of 0.03-0.05mm and determine that it meets the ±0.06mm tolerance requirement.

[0045] Effect: The efficiency of three-coordinate detection is increased 10 times compared with the original one.

[0046] After the magnetic tile 0 is ground on site, the detection device is used to quickly and accurately obtain the deviation value of the magnetic tile 0 profile, and then compare whether it meets the tolerance requirements. If the deviation exceeds the tolerance range, the maintenance personnel will be notified immediately on site to repair the machine or replace the grinding wheel.

[0047] Surface profile: The primary indicator for describing surface dimensional accuracy is profile error, which refers to the variation of the measured actual profile relative to the ideal profile. The machining accuracy of free-form surfaces is measured by their surface profile, a difficult-to-define geometric element. Unlike regular geometric elements, which can be precisely defined using a small number of parameters, free-form surface machining accuracy verification is more complex. This is primarily due to the inability to directly use the measured surface itself as a measurement reference, resulting in measurement results containing systematic errors caused by the misalignment of the measurement and design coordinate systems. The tolerance zone of a surface profile is the area between two enveloping surfaces that enclose a series of circles with a diameter of tolerance value T. The centers of these circles lie on the ideal profile.

[0048] Example 2

[0049] Combine Figure 5-6 The magnetic tile profile detection device of this embodiment differs from that of Example 1 in that the arc-contacting cylinder 3 is a hollow cylinder with an open top and a circular cross-section. Using the outer arc of magnetic tile 0 as a reference, the outer arc of magnetic tile 0 is placed against the inner wall of arc-contacting cylinder 3 to measure the profile deviation of the inner arc of magnetic tile 0.

[0050] The detection method of the magnetic tile profile detection device of this embodiment differs from that of embodiment 1 in that it also includes detecting the inner arc profile of magnetic tile 0: when detecting the inner arc profile of magnetic tile 0, the tool is first adjusted to the level by adjusting screw 5, and then the profile detection tool is calibrated using the magnetic tile 0 standard part;

[0051] Then place the magnetic tile 0 to be tested on the inner wall of the arc-fitting cylinder 3, check whether the magnetic tile 0 to be tested is in contact with the inner wall of the cylinder, then place the probe of the indicator 44 on the magnetic tile 0 to be tested, and then calibrate the indicator 44 to zero;

[0052] Press the magnetic tile 0 to be tested and slide it on the inner wall of the arc-adhering cylinder 3, and observe and record the maximum and minimum values ​​of the indicator 44. The reading of the indicator 44 during the sliding process is the deviation of the inner arc profile of the magnetic tile 0 to be tested.

[0053] Other beneficial effects:

[0054] 1. The operation is convenient and simple, which optimizes the method of on-site contour inspection and saves time.

[0055] 2. The structure is simple, each component is independent and does not interfere with each other, and maintenance and replacement are relatively convenient.

[0056] 3. According to the different specifications of ferrite tiles, only the arc cylinder needs to be replaced.

[0057] 4. It can measure the profile of three magnetic tiles of different specifications without the need for frequent replacement of parts.

[0058] 5. Accurate values ​​can be obtained, which facilitates the debugging of on-site equipment and machines.

[0059] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A magnetic tile profile detection device, characterized in that: include: Base, mounting plate, arc-fitting cylinder and indicator components; The mounting plate is mounted on the upper surface of the base, the bottom of the arc-fitting cylinder is mounted on the side wall of the mounting plate, and the arc-shaped body of the arc-fitting cylinder is used to place the magnetic tile; the indicator component is mounted on the base opposite to the arc-fitting cylinder, and the indicator component can movably contact or move away from the magnetic tile placed on the arc-fitting cylinder.

2. The magnetic tile profile detection device according to claim 1, characterized in that: The indicator part includes a magnetic base, a universal support arm, a clamping device and an indicator; the bottom end of the universal support arm is magnetically connected to the upper surface of the magnetic base, the clamping device is connected to the top end of the universal support arm, and the indicator is installed on the clamping device. The indicator can move in contact with or away from the magnetic tile placed on the arc cylinder.

3. The magnetic tile profile detection device according to claim 1, characterized in that: A protrusion is provided on the side wall of the arc-conforming cylinder.

4. The magnetic tile profile detection device according to claim 1, characterized in that: The arc-adhering cylinder is a hollow cylinder with an open top.

5. The magnetic tile profile detection device according to claim 4, characterized in that: The cross section of the arc-adapting cylinder is annular.

6. The magnetic tile profile detection device according to claim 1, characterized in that: It also includes an adjusting screw, which is arranged at the bottom of the base.

7. The magnetic tile profile detection device according to claim 1, characterized in that: There are multiple arc-conforming cylinders, and the multiple arc-conforming cylinders are arranged on the mounting plate in sequence from left to right.

8. The magnetic tile profile detection device according to claim 1, characterized in that: The indicator is a dial indicator or a micrometer.

9. A detection method for a magnetic tile profile detection device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Place the magnetic tile to be tested on the body of the arc-fitting cylinder, then check whether the magnetic tile to be tested and the body of the arc-fitting cylinder are in good contact, then place the probe of the indicator component on the magnetic tile to be tested, and then calibrate the indicator to zero; Press the magnetic tile to be tested and slide it left and right on the body of the arc cylinder, and observe and record the maximum and minimum values ​​of the indicator. The reading of the indicator during the sliding process is the deviation of the outer arc profile of the magnetic tile to be tested.

10. The detection method according to claim 9, characterized in that: When testing the inner arc profile of the magnetic tile, place the magnetic tile to be tested on the column of the arc-fitting cylinder, then check whether the magnetic tile to be tested and the cylinder are fitted together, then place the probe of the indicator on the magnetic tile to be tested, and then calibrate the indicator to zero; Press the magnetic tile to be tested and slide it on the body of the arc-attached cylinder, and observe and record the maximum and minimum values ​​of the indicator. The reading of the indicator during the sliding process is the deviation of the inner arc profile of the magnetic tile to be tested.

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