Coil testing apparatus

Abstract

The present application belongs to the technical field of coil detection, and discloses a coil detection device. The coil detection device comprises a detection table, a detection light source, a bearing assembly and a flattening assembly. The detection table has a detection cavity; the detection light source is arranged in the detection cavity; the bearing assembly is arranged on the detection table and corresponds to the detection light source, the bearing assembly is used for bearing the coil, and the light generated by the detection light source can pass through the bearing assembly and irradiate on the coil; the flattening assembly is slidingly connected to the detection table and corresponds to the side of the bearing assembly away from the detection light source, the bearing assembly is used for flattening the coil on the bearing assembly, and the flattening assembly has a detection through hole corresponding to the coil, and the detection through hole is used for allowing a shooting mechanism to shoot the flattened coil. When the coil detection device is used, the interference of the flattening assembly on the shooting process is effectively avoided, the coil can be ensured to keep the flattened state during the detection process, the possibility of coil bending is reduced, and the detection precision is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of coil testing technology, and more particularly to coil testing equipment. Background Technology

[0002] Coil size inspection is a crucial step in coil manufacturing, as it directly impacts performance and usability. Coil size primarily refers to the dimensions of the inner and outer coils.

[0003] In the prior art, the equipment for detecting the size of the coil includes a support platform for carrying the coil. The support platform is also equipped with a camera mechanism that can take pictures of the coil and calculate the size of the coil by processing the captured images.

[0004] However, once the coil is placed on the support platform, it is difficult to keep it flat. Directly using the imaging mechanism to take pictures can only capture images of the coil in a bent state. If a flattening structure is set up to flatten the coil on the support plate, the flattening structure will not only easily block the light, but may also block the shooting angle of the imaging mechanism, resulting in a decrease in detection accuracy. Summary of the Invention

[0005] The purpose of this invention is to provide a coil testing device that solves the problem in the prior art where, during the detection of coil size using an imaging mechanism, the coil has a certain degree of bending, and when a flattening structure is set to flatten the coil, it not only easily blocks the light but may also block the shooting angle, resulting in low detection accuracy.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Coil testing equipment includes:

[0008] A testing station, wherein the testing station has a testing cavity;

[0009] A detection light source is disposed inside the detection cavity;

[0010] A carrier assembly, disposed on the detection stage and corresponding to the detection light source, is used to carry the coil, and light generated by the detection light source can pass through the carrier assembly and illuminate the coil; and

[0011] A flattening assembly is slidably connected to the detection stage and corresponds to the side of the support assembly away from the detection light source. The support assembly is used to flatten the coil on the support assembly. The flattening assembly has a detection through hole corresponding to the coil. The detection through hole is used for the imaging mechanism to photograph the flattened coil.

[0012] Optionally, the carrier component includes:

[0013] A support plate is disposed within the detection cavity, and the support plate has detection holes corresponding to the detection light source; and

[0014] A first light-transmitting plate is disposed on the support plate and covers the detection hole, and the top surface of the first light-transmitting plate is used to support the coil.

[0015] Optionally, the carrier component further includes:

[0016] The second light-transmitting plate is disposed in the detection cavity and located between the carrier plate and the detection light source. The second light-transmitting plate and the first light-transmitting plate form a vacuum cavity within the detection hole. The first light-transmitting plate has a plurality of adsorption holes communicating with the vacuum cavity.

[0017] Optionally, the upper and lower sides of the support plate are provided with sealing grooves around the detection hole, and a sealing ring is provided in the sealing groove.

[0018] Optionally, the carrier component further includes:

[0019] A pressure block is placed on the testing platform and snapped into the first light-transmitting plate.

[0020] Optionally, the top wall of the first light-transmitting plate is provided with a fitting slope, and the side of the pressing block is provided with a pressing slope that abuts against the fitting slope.

[0021] Optionally, the flattening assembly includes:

[0022] The support frame, with the testing platform located within the support frame;

[0023] A flattened cover plate is provided, and the detection through hole is provided in the flattened cover plate. The flattened cover plate is slidably connected to the support frame and located above the detection table, so that the flattened cover plate can squeeze the coil by its own weight.

[0024] Optionally, the flattening assembly further includes:

[0025] A driving component is disposed on the support frame and connected to the flattening cover plate. The driving component is used to drive the flattening cover plate away from the detection table.

[0026] Optionally, the flattening assembly further includes:

[0027] The limiting block has a limiting groove for the flattening cover plate portion to extend into.

[0028] Optionally, the coil testing device further includes:

[0029] A movable component is connected to the flattening component to drive the flattening component closer to or away from the detection stage.

[0030] The beneficial effects of this invention are:

[0031] When inspecting the coil dimensions, the coil is placed on a support assembly, and a flattening assembly is used to flatten the coil on the support assembly, aligning the detection through-hole with the coil. The detection light source is then activated, and light shines onto the coil surface after passing through the support assembly. An imaging mechanism then takes an image of the coil through the detection through-hole. Based on the image, the dimensions of the inner and outer coils can be calculated simultaneously, completing the inspection. The specific calculation process can be found in existing image processing techniques, which will not be elaborated upon here. This coil inspection device, by creating a detection through-hole on the flattening assembly, ensures that the imaging mechanism can smoothly photograph the coil through the detection through-hole, effectively avoiding interference from the flattening assembly during the imaging process. Furthermore, it ensures that the coil remains flattened during inspection, reducing the possibility of coil bending and thus effectively improving inspection accuracy. This inspection process can also simultaneously inspect the dimensions of the inner and outer coils, effectively shortening the coil inspection process and improving inspection efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the coil detection device in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure of the detection stage in the coil detection device in this embodiment of the invention;

[0034] Figure 3 This is a cross-sectional view of the detection platform of the coil detection device in an embodiment of the present invention;

[0035] Figure 4 yes Figure 3 Enlarged view of section A in the middle;

[0036] Figure 5 This is a schematic diagram of the moving component, flattening component, and detection stage of the coil detection device in an embodiment of the present invention.

[0037] In the picture:

[0038] 1. Testing table; 11. Base plate; 12. Enclosure; 13. Mounting block; 2. Testing light source; 3. Bearing assembly; 31. Bearing plate; 311. Testing hole; 312. Sealing groove; 32. First light-transmitting plate; 321. Adsorption hole; 322. Adhesion slope; 33. Second light-transmitting plate; 4. Flattening assembly; 41. Testing through hole; 42. Support frame; 43. Flattening cover plate; 44. Driving component; 45. Limiting block; 451. Limiting groove; 5. Pressing block; 51. Extrusion slope; 6. Moving assembly. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0040] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0043] This invention discloses a coil testing device.

[0044] Reference Figures 1 to 3The coil testing equipment includes a testing platform 1, a testing light source 2, a support component 3, and a flattening component 4. The testing platform 1 has a testing cavity; the testing light source 2 is disposed in the testing cavity; the support component 3 is disposed on the testing platform 1 and corresponds to the testing light source 2, and the support component 3 is used to support the coil. The light generated by the testing light source 2 can pass through the support component 3 and illuminate the coil; the flattening component 4 is slidably connected to the testing platform 1 and corresponds to the side of the support component 3 away from the testing light source 2. The support component 3 is used to flatten the coil on the support component 3. The flattening component 4 has a testing through hole 41 corresponding to the coil, and the testing through hole 41 is used for the imaging mechanism to photograph the flattened coil.

[0045] Specifically, the testing station 1 includes a base plate 11 and a enclosure 12. The bottom wall of the base plate 11 is fixed to the corresponding production line (not shown in the figure), and the enclosure 12 is fixed to the top wall of the base plate 11 by bolts or other fasteners. The enclosure 12 is rectangular and hollow inside, and the enclosure 12 and the base plate 11 enclose a testing cavity. The testing light source 2 is installed inside the detector and has a plate-like structure with the light-emitting side facing away from the base plate 11. The testing light source 2 can be a monochromatic light source or other light sources, as long as it can be used in conjunction with the imaging mechanism. The support component 3 is set on the upper side of the enclosure 12 and faces the testing light source 2. The support component 3 can be made of transparent glass to allow light to pass through smoothly. A protective film can also be set on the upper side of the support component 3 to ensure that light can pass through smoothly while also preventing the coil from scratching the support component 3.

[0046] The flattening component 4 can be set on the outside of the detection table 1. Its upper end can be provided with a plate-like structure that can slide relative to the detection table 1. Multiple detection through holes 41 are opened on the plate-like structure. The plate-like structure corresponds to the top surface of the bearing component 3 to facilitate the compression of the coil, thereby flattening the coil on the bearing component 3.

[0047] When inspecting the coil size, the coil is placed on the support component 3, and the flattening component 4 is used to flatten the coil on the support component 3, aligning the detection through-hole 41 with the coil. Then, the detection light source 2 is activated, and the light shines on the coil surface after passing through the support component 3. The imaging mechanism takes a picture of the coil through the detection through-hole 41. Based on the imaging results, the dimensions of the inner and outer coils can be calculated simultaneously to complete the inspection. The specific calculation process can be found in existing image processing techniques, which will not be elaborated here. In this coil inspection device, by opening the detection through-hole 41 on the flattening component 4, the imaging mechanism can smoothly take pictures of the coil through the detection through-hole 41, effectively avoiding interference from the flattening component 4 during the imaging process. Furthermore, it ensures that the coil remains flat during the inspection, reducing the possibility of coil bending and thus effectively improving inspection accuracy. This inspection process can also simultaneously inspect the dimensions of the inner and outer coils, effectively shortening the coil inspection process and improving inspection efficiency.

[0048] Optionally, the carrier assembly 3 includes a carrier plate 31 and a first light-transmitting plate 32. The carrier plate 31 is disposed inside the detection cavity, and a detection hole 311 corresponding to the detection light source 2 is opened on the carrier plate 31; the first light-transmitting plate 32 is disposed on the carrier plate 31 and covers the detection hole 311, and the top surface of the first light-transmitting plate 32 is used to carry the coil.

[0049] Specifically, the carrier plate 31 is rectangular and placed inside the detection cavity. At least one detection hole 311 is formed through the carrier plate 31. The detection hole 311 can be elliptical or rectangular, and its size can be designed according to the size of the coil. The size of the detection hole 311 is designed according to the outer diameter of the largest coil. The first light-transmitting plate 32 is located above the carrier plate 31 and is attached to it, so that the first light-transmitting plate 32 can block all the detection holes 311. The first light-transmitting plate 32 can be optical glass with good light transmittance. In this embodiment, two detection holes 311 are provided, and the first light-transmitting plate 32 can simultaneously cover both detection holes 311, so that two coils of the same type can be detected simultaneously, further improving detection efficiency.

[0050] Once the coil is placed on the first light-transmitting plate 32, the light generated by the detection light source 2 passes sequentially through the detection hole 311 and the first light-transmitting plate 32 and strikes the coil. The imaging mechanism can then capture the outline of the coil by taking a picture, thereby enabling the detection of the dimensions of the inner and outer coils. The first light-transmitting plate 32 allows light from the detection light source 2 to pass through a large area, enabling coils of different shapes to be placed on it for detection, thus improving the compatibility of the coil detection equipment with different products.

[0051] Optionally, the carrier assembly 3 further includes a second light-transmitting plate 33. The second light-transmitting plate 33 is disposed in the detection cavity and located between the carrier plate 31 and the detection light source 2. The second light-transmitting plate 33 and the first light-transmitting plate 32 enclose a vacuum cavity within the detection hole 311. The first light-transmitting plate 32 has a plurality of adsorption holes 321 communicating with the vacuum cavity.

[0052] Specifically, a mounting block 13 is provided inside the detection chamber, and the mounting block 13 is integrally formed with the enclosure 12. The second light-transmitting plate 33 is placed on the mounting block 13. The second light-transmitting plate 33 is arranged opposite to the first light-transmitting plate 32, and both can be optical glass. The support plate 31 is located between the first light-transmitting plate 32 and the second light-transmitting plate 33. The upper and lower sides of the support plate 31 are respectively sealed and fitted to the first light-transmitting plate 32 and the second light-transmitting plate 33, thereby forming a vacuum cavity inside the detection hole 311. An adsorption hole 321 communicating with the detection hole 311 is opened on the side of the support plate 31, and the adsorption hole 321 is connected to the vacuum pumping equipment. Multiple adsorption holes 321 are arranged in a ring around the first light-transmitting plate 32, and the adsorption holes 321 are connected to the vacuum cavity. The specific distribution of the adsorption holes 321 can be designed according to the shape of the actual coil, and the present invention is not limited thereto.

[0053] When the coil is placed on the first light-transmitting plate 32, a vacuum can be drawn in the detection hole 311 so that the coil is attracted by the adsorption hole 321 and fixed on the first light-transmitting plate 32. When the flattening component 4 flattens the coil, the possibility of the coil moving can be reduced, ensuring that the detection through hole 41 can keep in correspondence with the coil.

[0054] Optionally, the upper and lower sides of the bearing plate 31 are provided with sealing grooves 312 around the detection hole 311, and a sealing ring (not shown in the figure) is provided in the sealing grooves 312.

[0055] Specifically, the sealing ring can be a rubber sealing ring, which is embedded in the sealing groove 312 and partially extends out of the sealing groove 312 to form an abutment with the first light-transmitting plate 32 and the second light-transmitting plate 33. In this way, by opening the sealing groove 312 on the support plate 31, a space is formed to accommodate the sealing ring, which facilitates the installation of the sealing ring and allows a vacuum cavity to be smoothly formed in the detection hole 311.

[0056] Reference Figure 3 and Figure 4 Optionally, the supporting component 3 also includes a pressure block 5. The pressure block 5 is disposed on the testing stage 1 and is engaged with the first light-transmitting plate 32.

[0057] Specifically, the top wall of the first light-transmitting plate 32 is provided with a fitting inclined surface 322, and the side of the pressure block 5 is provided with a pressing inclined surface 51 that abuts against the fitting inclined surface 322. To ensure the force balance of the first light-transmitting plate 32, fitting inclined surfaces 322 can be provided on both the front and rear sides of the first light-transmitting plate 32, while the pressure block 5 can be provided with two sets, one at the front and one at the rear. The pressure block 5 has an inverted L-shaped structure, its vertical arm is fixedly connected to the enclosure 12 by bolts or other fasteners, and its horizontal arm is provided with the aforementioned pressing inclined surface 51. The pressure block 5 itself can be made of materials such as nylon, so as to provide a certain degree of protection while pressing the first light-transmitting plate 32.

[0058] By setting the pressure block 5, during installation of the carrier assembly 3, the second light-transmitting plate 33 can be placed into the detection chamber first and placed on the mounting block 13. Then, the carrier plate 31 with the sealing ring set is placed into the detection chamber and placed on top of the second light-transmitting plate 33. Next, the first light-transmitting plate 32 is placed, and finally the pressure block 5 is placed in. The pressure block 5 is pressed by tightening the fasteners, and the pressing inclined surface 51 is used to press against the inclined surface 322, thereby pressing the first light-transmitting plate 32, the carrier plate 31, and the second light-transmitting plate 33 together. This can minimize the need to process slots or other structures on the first light-transmitting plate 32 and the second light-transmitting plate 33, ensuring good optical performance of the first light-transmitting plate 32 and the second light-transmitting plate 33. At the same time, during assembly, only the pressure block 5 needs to be locked to complete the installation of the carrier assembly 3, which can also effectively simplify the installation structure and reduce the installation difficulty.

[0059] Reference Figure 1 Optionally, the flattening assembly 4 includes a support frame 42 and a flattening cover plate 43. The testing table 1 is located inside the support frame 42; the testing through hole 41 is opened in the flattening cover plate 43, and the flattening cover plate 43 is slidably connected to the support frame 42 and located above the testing table 1, so that the flattening cover plate 43 presses the coil by its own weight.

[0060] Specifically, the support frame 42 is U-shaped, and the testing table 1 is located inside the support frame 42. A flattening cover plate 43 is slidably connected to the upper end of the support frame 42. The flattening cover plate 43 is positioned directly opposite the first light-transmitting plate 32, and the cross-sectional area of ​​the flattening cover plate 43 is larger than that of the first light-transmitting plate 32. The flattening cover plate 43 can be made of a high-density material, such as steel, and its surface can be coated with a protective coating to ensure that the coil is not damaged during the extrusion of the coil.

[0061] By setting up the support frame 42 and the flattening cover plate 43, after the coil is placed on the first light-transmitting plate 32, the flattening cover plate 43 can use its own weight to fall and squeeze the coil, thus flattening the coil on the first light-transmitting plate 32. The opening of the detection through hole 41 will expose part of the coil. In order to improve the flattening effect of the flattening cover plate 43 on the coil, multiple detection through holes 41 can be opened at intervals, and the size of the multiple detection through holes 41 is different. This allows the structure between two adjacent detection through holes 41 to also flatten the coil, thereby reducing the possibility of local bending of the coil and effectively improving the detection accuracy.

[0062] Optionally, the flattening assembly 4 also includes a driving component 44. The driving component 44 is disposed on the support frame 42 and connected to the flattening cover plate 43. The driving component 44 is used to drive the flattening cover plate 43 away from the detection table 1. Specifically, the driving component 44 can be a lifting cylinder, which is fixed on the outside of the support frame 42. Its piston rod can extend upward to push the flattening cover plate 43 upward, so that the flattening cover plate 43 is away from the first light-transmitting plate 32. Two lifting cylinders can be provided, located on the front and rear sides of the flattening cover plate 43 respectively, so that the flattening cover plate 43 is subjected to uniform force when it moves upward. It should be understood that the driving component 44 can also be a motor. In this case, a transmission mechanism and a screw connected to the transmission mechanism are provided on the support frame 42. The transmission mechanism can be a gear rack, worm gear, etc., and the screw can be threadedly connected to the flattening cover plate 43. The transmission mechanism drives the screw to rotate, which can also drive the flattening cover plate 43 to move upward. The specific type of driving component 44 can be designed according to the actual installation space and driving requirements. This invention does not limit it.

[0063] By setting up the driving component 44, after the coil detection is completed, the driving component 44 can drive the flattening cover plate 43 to lift it up, so that the coil can be picked up. When it is necessary to flatten the coil, the driving component 44 can be stopped, and the flattening cover plate 43 can fall automatically by its own weight to compress the coil.

[0064] Optionally, the flattening assembly 4 also includes a limiting block 45. The limiting block 45 has a limiting groove 451 into which part of the flattening cover plate 43 extends. Specifically, the limiting block 45 is elongated and vertically oriented. The lower side of the limiting block 45 is fixed to the support frame 42 by bolts, and a U-shaped limiting groove 451 is formed in the middle, into which the side wall of the flattening cover plate 43 extends. Multiple limiting blocks 45 can be provided, and the multiple limiting blocks 45 are distributed circumferentially around the flattening cover plate 43. In this embodiment, two limiting blocks 45 are provided, and the two limiting blocks 45 are staggered.

[0065] By setting the limiting block 45 and the limiting groove 451, the upward movement range of the cover plate can be limited, so that after the driving member 44 lifts the flattened cover plate 43, the flattened cover plate 43 abuts against the bottom wall of the limiting groove 451, thereby making the flattened cover plate 43 bear force evenly, thus ensuring the stability of the flattened cover plate 43 in the lifted state and reducing the possibility of damage to the flattened cover plate 43.

[0066] Reference Figure 5 Optionally, the coil testing device also includes a moving component 6. The moving component 6 is connected to the flattening component 4 to drive the flattening component 4 closer to or further away from the testing stage 1.

[0067] Specifically, the moving component 6 can be a linear motor module, which passes through the support frame 42 and is connected to the bottom wall of the support frame 42. The moving component 6 can drive the flattening component 4 to translate, so that the detection table 1 can be inserted into the support frame 42 or moved out of the support frame 42. When it is moved out of the support frame 42, the coil can be easily placed on the first light-transmitting plate 32. When the detection table 1 is inserted into the support frame 42, the position of the flattening cover plate 43 relative to the first light-transmitting plate 32 can be adjusted by the moving component 6, so that while the flattening cover plate 43 squeezes the coil, part of the coil structure can be exposed through the detection through hole 41.

[0068] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A coil testing device, characterized in that, include: A testing station (1) having a testing cavity inside; A detection light source (2) is disposed inside the detection cavity; A carrier component (3) is disposed on the detection stage (1) and corresponds to the detection light source (2). The carrier component (3) is used to carry the coil. The light generated by the detection light source (2) can pass through the carrier component (3) and irradiate the coil. as well as A flattening assembly (4) is slidably connected to the detection stage (1) and corresponds to the side of the support assembly (3) away from the detection light source (2). The flattening assembly (4) is used to flatten the coil on the support assembly (3). The flattening assembly (4) has a detection through hole (41) corresponding to the coil. The detection through hole (41) is used for the imaging mechanism to photograph the flattened coil. The carrier component (3) includes: A support plate (31) is disposed within the detection cavity, and a detection hole (311) corresponding to the detection light source (2) is formed on the support plate (31); the size of the detection hole (311) is designed according to the maximum outer coil size of the coil; and A first light-transmitting plate (32) is disposed on the support plate (31) and covers the detection hole (311). The top surface of the first light-transmitting plate (32) is used to support the coil. The carrier component (3) also includes: The second light-transmitting plate (33) is disposed in the detection cavity and located between the carrier plate (31) and the detection light source (2). The second light-transmitting plate (33) and the first light-transmitting plate (32) enclose a vacuum cavity within the detection hole (311). The first light-transmitting plate (32) has a plurality of adsorption holes (321) communicating with the vacuum cavity.

2. The coil testing device according to claim 1, characterized in that, The upper and lower sides of the bearing plate (31) are provided with sealing grooves (312) around the detection hole (311), and a sealing ring is provided in the sealing groove (312).

3. The coil testing device according to claim 1, characterized in that, The carrier component (3) also includes: A pressure block (5) is placed on the testing table (1) and snapped into the first light-transmitting plate (32).

4. The coil testing device according to claim 3, characterized in that, The top wall of the first light-transmitting plate (32) is provided with a fitting slope (322), and the side of the pressure block (5) is provided with a pressing slope (51) that abuts against the fitting slope (322).

5. The coil testing device according to claim 1, characterized in that, The flattening assembly (4) includes: The support frame (42) contains the testing table (1). A flattening cover plate (43) is provided, and the detection through hole (41) is provided on the flattening cover plate (43). The flattening cover plate (43) is slidably connected to the support frame (42) and located above the detection table (1), so that the flattening cover plate (43) can squeeze the coil by its own weight.

6. The coil testing device according to claim 5, characterized in that, The flattening assembly (4) also includes: A driving component (44) is disposed on the support frame (42) and connected to the flattening cover plate (43). The driving component (44) is used to drive the flattening cover plate (43) away from the detection table (1).

7. The coil testing device according to claim 5, characterized in that, The flattening assembly (4) also includes: The limiting block (45) has a limiting groove (451) into which the flattening cover plate (43) extends.

8. The coil testing device according to any one of claims 1 to 7, characterized in that, The coil testing equipment also includes: The moving component (6) is connected to the flattening component (4) to drive the flattening component (4) closer to or further away from the detection stage (1).

Images