A flatness detection device

Abstract

The utility model belongs to production detection technical field discloses a flatness detection device, including right angle positioning fixture, a plurality of distance inductive pieces and host computer, right angle positioning fixture is used for positioning placement to spliced magnetic core, a plurality of distance inductive pieces are arranged in the around of spliced magnetic core, through to spliced magnetic core and side and top's a plurality of position are measured, obtain a plurality of distance data, host computer is connected with a plurality of distance inductive pieces all communication, host computer can receive a plurality of distance data that a plurality of distance inductive pieces send, and compare a plurality of distance data with its internal storage a plurality of standard values, to judge whether the surface flatness of the detected spliced magnetic core meets the requirement. The utility model provides a kind of flatness detection device, can solve the surface flatness of spliced magnetic core is measured by artificial mode, not only increase the working difficulty of staff, and make the problem of spliced magnetic core detection efficiency low.

Description

Technical Field

[0001] This utility model relates to the field of production testing technology, and in particular to a flatness testing device. Background Technology

[0002] Currently, the market offers composite magnetic cores made by gluing together multiple small magnetic cores. Because the glue needs to be heated to set, thermal expansion and contraction during the heating process can cause misalignment between the small magnetic cores, resulting in a poor surface smoothness of the finished composite magnetic core.

[0003] After the existing spliced ​​magnetic cores are manufactured, their surface flatness is inspected to ensure that the performance of the spliced ​​magnetic cores meets the usage requirements. Currently, the flatness of the spliced ​​magnetic cores is measured by workers using measuring tools. Since each manufactured spliced ​​magnetic core needs to be measured individually, measuring the flatness of each spliced ​​magnetic core surface consumes a lot of time for workers, which not only increases the workload of workers, but also makes the spliced ​​magnetic core inspection inefficient. Utility Model Content

[0004] The purpose of this invention is to provide a flatness testing device that can solve the problem that manually measuring the surface flatness of spliced ​​magnetic cores not only increases the difficulty of the workers' work, but also makes the testing efficiency of spliced ​​magnetic cores low.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A flatness detection device is configured to detect the flatness of the outer surface of a spliced ​​magnetic core, the flatness detection device comprising:

[0007] The system includes a right-angle positioning fixture and multiple distance sensors. The right-angle positioning fixture is used to position and place the spliced ​​magnetic core. The multiple distance sensors are arranged around the spliced ​​magnetic core to obtain multiple distance data by measuring multiple positions on the side and top surface of the spliced ​​magnetic core.

[0008] The host computer is communicatively connected to multiple distance sensors. The host computer can receive distance data and compare the multiple distance data with multiple stored standard values ​​to determine whether the flatness of the outer surface of the spliced ​​magnetic core meets the requirements.

[0009] As a preferred technical solution for the flatness detection device, all of the distance sensing elements are laser sensing elements. The multiple laser sensing elements are divided into a first laser sensing element, a second laser sensing element, a third laser sensing element, and a fourth laser sensing element. The first laser sensing element and the second laser sensing element are respectively located on both sides of the spliced ​​magnetic core along the length direction, the third laser sensing element is located on one side of the spliced ​​magnetic core along the width direction, and the fourth laser sensing element is located above the spliced ​​magnetic core.

[0010] As a preferred technical solution for the flatness detection device, the flatness detection device further includes a first bracket and a second bracket. There are two first brackets, which are used to fix the first laser sensor and the second laser sensor, respectively, and the second bracket is used to fix the third laser sensor and the fourth laser sensor.

[0011] As a preferred technical solution for the flatness detection device, the first laser sensing element includes at least two first laser sensors, and the second laser sensing element includes at least two second laser sensors. The two first laser sensors and the two second laser sensors are respectively arranged at intervals along the width direction of the spliced ​​magnetic core.

[0012] The third laser sensor includes multiple third laser sensors, all of which are located on one side of the splicing magnetic core along its width direction. The fourth laser sensor includes multiple fourth laser sensors, all of which are positioned above the splicing magnetic core. The multiple third laser sensors and the multiple fourth laser sensors are arranged at intervals along the length direction of the splicing magnetic core.

[0013] As a preferred technical solution for the flatness testing device, the flatness testing device further includes a base plate, and the right-angle positioning fixture, the first bracket and the second bracket are all placed on the base plate. The fixed positions of the right-angle positioning fixture, the first bracket and the second bracket relative to the base plate can be adjusted.

[0014] As a preferred technical solution for the flatness detection device, the fixed positions of the two first laser sensors and the first bracket can be adjusted, and the fixed positions of the multiple third laser sensors and the multiple fourth laser sensors and the second bracket can be adjusted.

[0015] As a preferred technical solution for the flatness detection device, the first bracket includes a first base and two first mounting brackets. The first base includes a mounting surface and an inclined surface. The mounting surface is provided with a strip hole. A first locking member fixes the first base and the base plate through the strip hole. The first laser sensor is placed on the inclined surface. The inclined surface includes a plurality of spaced circular holes. The first mounting bracket is fixed to the circular holes by a second locking member. The first mounting bracket is used to fix the first laser sensor.

[0016] As a preferred technical solution for the flatness detection device, the second bracket includes a second base, a first plate, multiple second plates, and multiple third plates. The second base is fixed to the base plate. The first plate is perpendicularly connected to the second base. The multiple second plates are perpendicularly connected to the first plate and located beside the right-angle positioning fixture. The multiple third laser sensors are placed at the bottom of the multiple second plates and opposite to the splicing magnetic core. The multiple third plates are placed at the top of the multiple second plates. The third plates are perpendicularly connected to the second plates and face the right-angle positioning fixture. The multiple fourth laser sensors are correspondingly placed on the multiple third plates.

[0017] As a preferred technical solution for the flatness detection device, the connection positions of the multiple fourth laser sensors and the third plate can be adjusted.

[0018] As a preferred technical solution for the flatness detection device, the base plate is provided with a clearance hole, and the third laser sensor is partially placed in the clearance hole; the second plate includes a first vertical plate and a second vertical plate that are fitted together, the first vertical plate is connected to the first plate, the third plate is placed on top of the first vertical plate, and the connection position between the second vertical plate and the first vertical plate can be adjusted.

[0019] The beneficial effects of this utility model are:

[0020] The flatness detection device provided by this utility model uses a right-angle positioning fixture to position and place the spliced ​​magnetic core. Multiple distance sensors emit lasers at multiple locations around and on the top surface of the spliced ​​magnetic core, thus obtaining multiple distance data points. Since all distance sensors are connected to a host computer, they can send the detected distance data to the host computer. The host computer compares the received distance data with multiple standard values ​​stored internally to determine whether the flatness of the spliced ​​magnetic core meets the requirements. This eliminates the need for workers to measure each spliced ​​magnetic core individually using measuring tools, reducing workload, saving time, and improving the efficiency of the spliced ​​magnetic core's production. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the flatness detection device provided by this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the flatness detection device provided by this utility model;

[0023] Figure 3 This is an assembly diagram of the second bracket, the third laser sensor, and the fourth laser sensor in the flatness detection device provided by this utility model;

[0024] Figure 4 This is a schematic diagram of the right-angle positioning fixture provided by this utility model;

[0025] Figure 5 This is a structural schematic diagram of the first base provided by this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the base plate provided by this utility model.

[0027] In the picture:

[0028] 100. Assembled magnetic core;

[0029] 1. Right-angle positioning fixture; 11. Opening; 21. First laser sensor; 22. Second laser sensor; 23. Third laser sensor; 24. Fourth laser sensor; 3. Host computer; 4. First bracket; 41. First base; 411. Mounting surface; 412. Inclined surface; 413. Strip hole; 42. First mounting bracket; 5. Second bracket; 51. Second base; 52. First plate; 53. Second plate; 531. First vertical plate; 532. Second vertical plate; 54. Third plate; 541. Strip guide hole; 6. Base plate; 61. Mounting hole; 62. Clearance hole. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, 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 or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or 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 utility model according to the specific circumstances.

[0032] In the description of this utility model, unless otherwise expressly 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.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 3 As shown, this utility model provides a flatness detection device configured to detect the flatness of the outer surface of a spliced ​​magnetic core 100 to ensure that the performance of the spliced ​​magnetic core 100 meets the usage requirements. The flatness detection device includes a right-angle positioning fixture 1, multiple distance sensors, and a host computer 3. The right-angle positioning fixture 1 is placed on a worktable for positioning the spliced ​​magnetic core 100. Multiple distance sensors are located around the spliced ​​magnetic core 100 and measure multiple positions on the side and top of the spliced ​​magnetic core 100 to calculate the distance between the distance sensors and the spliced ​​magnetic core 100, obtaining the corresponding distance data. The host computer 3 is communicatively connected to the multiple distance sensors, allowing the multiple distance sensors to transmit the measured distance data to the host computer 3. The host computer 3 stores multiple standard values. By comparing the received distance data from the multiple distance sensors with the multiple standard values, the host computer 3 can determine whether the surface flatness of the spliced ​​magnetic core 100 meets the requirements.

[0035] The host computer 3 stores error data and includes a calculation module that adds the standard value to the error data to obtain a reference data range for judging whether the flatness of the spliced ​​magnetic core 100 meets the requirements (i.e., when error data needs to be considered, the standard value of the error data is included). If multiple distance data communicated by multiple distance sensors to the host computer 3 are all within the reference data range, the surface flatness of the spliced ​​magnetic core 100 being tested meets the requirements. If one or more of the multiple distance data communicated by multiple distance sensors to the host computer 3 are not within the reference data range, the surface flatness of the spliced ​​magnetic core 100 being tested does not meet the requirements and needs to be recycled. Thus, when inspecting the surface flatness of the processed spliced ​​magnetic core 100, the operator only needs to position the spliced ​​magnetic core 100 to be tested according to the right-angle positioning fixture 1, and can quickly determine whether the flatness of the spliced ​​magnetic core 100 meets the requirements through multiple distance sensors and the host computer 3.

[0036] The flatness detection device provided in this embodiment positions the spliced ​​magnetic core 100 using a right-angle positioning fixture 1, and emits lasers at multiple positions around and on the top surface of the spliced ​​magnetic core 100 using multiple distance sensors to obtain multiple distance data. Since multiple distance sensors are all connected to the host computer 3, they can send the detected distance data to the host computer 3. The host computer 3 can determine whether the flatness of the spliced ​​magnetic core 100 meets the requirements by comparing the received distance data with multiple standard values ​​stored in its internal memory. The operator does not need to use measuring tools to measure each spliced ​​magnetic core 100 individually, which not only reduces the difficulty of the operator's work and frees up the operator's time, but also improves the efficiency of the spliced ​​magnetic core 100 leaving the factory.

[0037] The determination of the standard value involves placing the standard sample in a right-angle positioning fixture 1, and then measuring multiple distance sensors at multiple positions on the side and top of the standard sample. The resulting distance data are the standard values. The standard sample is a spliced ​​magnetic core with flatness that meets the requirements.

[0038] In this embodiment, as Figure 2 and Figure 4 As shown, openings 11 are provided on both positioning sides of the right-angle positioning fixture 1 to ensure that the lasers emitted by multiple distance sensors can pass through the openings 11 and irradiate the splicing magnetic core 100.

[0039] In this embodiment, the communication connection between the host computer 3 and the multiple proximity sensors is a Bluetooth connection. Bluetooth connection is a mature technology in the field of wireless networks, so it will not be elaborated on here.

[0040] The system includes multiple laser sensors that emit lasers at multiple locations on the sides and top of the splicing magnetic core 100. Based on the emission and reception times of the lasers, the distances between the laser sensors and the splicing magnetic core 100 can be calculated, thus obtaining multiple distance data points. These laser sensors are categorized as a first, second, third, and fourth laser sensor. The first and second laser sensors emit lasers at two sidewalls along the length of the splicing magnetic core 100, respectively. The third laser sensor emits lasers at one sidewall along the width of the splicing magnetic core 100. These sensors provide multiple distance data points for assessing the flatness of the sidewalls of the splicing magnetic core 100. The fourth laser sensor, located above the splicing magnetic core 100, emits lasers at the end face of the splicing magnetic core 100, providing distance data for assessing the flatness of the end face.

[0041] Furthermore, the flatness detection device also includes a first bracket 4 and a second bracket 5. Two first brackets 4 are provided, located on opposite sides of the spliced ​​magnetic core 100 along its length. The two first brackets 4 fix the first and second laser sensors respectively, ensuring that the first and second laser sensors stably emit laser light onto the spliced ​​magnetic core 100, thereby more accurately determining whether the surface flatness of the spliced ​​magnetic core 100 meets the requirements. The second bracket 5 is used to fix the third and fourth laser sensors, ensuring that the third and fourth laser sensors stably emit laser light onto the spliced ​​magnetic core 100, improving the detection accuracy of the flatness detection device.

[0042] The first laser sensing element includes at least two first laser sensors 21, and the second laser sensing element includes at least two second laser sensors 22. The two first laser sensors 21 and the two second laser sensors 22 are arranged at width intervals along the spliced ​​magnetic core 100. Since the spliced ​​magnetic core 100 is formed by splicing and bonding multiple small magnetic cores, these small magnetic cores are arranged in multiple rows and columns. Most of the multiple small magnetic cores in the spliced ​​magnetic core 100 are arranged in at least two rows to avoid the spliced ​​magnetic core 100 becoming too long. Therefore, by setting at least two first laser sensors 21 and at least two second laser sensors 22, the distance data of each row of small magnetic cores can be obtained. Based on the obtained distance data, the flatness of the two sidewalls of the spliced ​​magnetic core 100 along its length can be determined.

[0043] The third laser sensor includes multiple third laser sensors 23, all located on one side along the width direction of the splicing magnetic core 100. Multiple small magnetic cores in the splicing magnetic core 100 are arranged in multiple rows. Each of the multiple third laser sensors 23 emits laser light towards one of these rows of small magnetic cores, thus obtaining multiple distance data points. Based on these distance data points, the flatness of the sidewall in the width direction of the splicing magnetic core 100 can be determined. The fourth laser sensor includes multiple fourth laser sensors 24, all positioned above the splicing magnetic core 100. These fourth laser sensors emit laser light towards the upper surface of the multiple small magnetic cores. Based on the distance data points obtained by the fourth laser sensors 24, the flatness of the upper surface of the splicing magnetic core 100 can be determined.

[0044] like Figure 1 and Figure 2 As shown, the spliced ​​magnetic core 100 in this embodiment is formed by splicing six small magnetic cores, which are arranged in two rows and three columns. Correspondingly, the flatness detection device includes two first laser sensors 21, two second laser sensors 22, three third laser sensors 23, and six fourth laser sensors 24. The two first laser sensors 21 are located on one side of the spliced ​​magnetic core 100 along the length direction, and the two second laser sensors 22 are located on the other side of the spliced ​​magnetic core 100 along the length direction, emitting lasers towards the sidewalls of the two small magnetic cores on the outer side of the spliced ​​magnetic core 100 along the length direction. The three third laser sensors 23 are located on one side of the spliced ​​magnetic core 100 along the width direction, emitting lasers towards the three small magnetic cores on the outer side of the spliced ​​magnetic core 100 along the width direction. The six fourth laser sensors 24 are located above the spliced ​​magnetic core 100, emitting lasers towards the upper surfaces of the six small magnetic cores. The distance data obtained by the two first laser sensors 21, the two second laser sensors 22 and the three third laser sensors 23 can be used to judge the flatness of the outer peripheral surface of the spliced ​​magnetic core 100, and the six fourth laser sensors 24 can be used to judge the flatness of the upper surface of the spliced ​​magnetic core 100.

[0045] The flatness testing device also includes a base plate 6, on which the right-angle positioning fixture 1, the first bracket 4, and the second bracket 5 are all placed. The fixed positions of the right-angle positioning fixture 1, the first bracket 4, and the second bracket 5 relative to the base plate 6 are adjustable. Since different spliced ​​magnetic cores 100 have different specifications, for spliced ​​magnetic cores 100 of different specifications, the fixed positions of the right-angle positioning fixture 1, the first bracket 4, and the second bracket 5 relative to the base plate 6 can be adjusted, allowing different specifications of spliced ​​magnetic cores 100 to be completely laid on the base plate 6, further improving the versatility and design rationality of the flatness testing device. Specifically, as shown... Figure 2 and Figure 6As shown, multiple mounting holes 61 are spaced apart on the base plate 6. The right-angle positioning fixture 1, the first bracket 4, and the second bracket 5 are all locked and fixed to the mounting holes 61 on the base plate 6 by bolts. By installing the right-angle positioning fixture 1, the first bracket 4, and the second bracket 5 with different mounting holes 61, the fixed position of the right-angle positioning fixture 1, the first bracket 4, the second bracket 5, and the base plate 6 can be adjusted.

[0046] Furthermore, the fixed positions of the two first laser sensors 21 and the first bracket 4 are adjustable, thus the spacing between the two first laser sensors 21 is adjustable. Correspondingly, the spacing between the two second laser sensors 22 is adjustable. Simultaneously, the fixed positions of the multiple third laser sensors 23 and the multiple fourth laser sensors 24 and the second bracket 5 are adjustable, thus the spacing between the multiple third laser sensors 23 and the multiple fourth laser sensors 24 is adjustable. When the specifications of the splicing magnetic core 100 change, and the specifications of the small magnetic cores used for splicing also change, the spacing between the two first laser sensors 21, the two second laser sensors 22, and the multiple third laser sensors 23 and the multiple fourth laser sensors 24 can be adjusted accordingly, enabling the flatness detection device to be applicable to the flatness detection of splicing magnetic cores 100 of different specifications, thereby improving the versatility of the flatness detection device.

[0047] For example, such as Figure 2 and Figure 5As shown, the first bracket 4 includes a first base 41 and two mounting brackets. The first base 41 includes a mounting surface 411 and an inclined surface 412. The mounting surface 411 has a slotted hole 413. A first locking member fixes the first base 41 and the base plate 6 through the slotted hole 413. The slotted hole 413 on the first base 41 allows for fine-tuning of the mounting position of the first bracket 4 on the base plate 6. When making small-distance adjustments to the first bracket 4, the operator does not need to remove the first bracket 4 relative to the base plate 6, reducing the difficulty of adjustment. The first locking member can be a bolt. The first laser sensor 21 is positioned on the inclined surface 412. The laser emitted by the first laser sensor 21 is angled and illuminates the splicing magnetic core 100. Since the thickness of the splicing magnetic core 100 varies, for thinner splicing magnetic cores, if the laser emitted horizontally by the first laser sensor 21, it might not reach the sidewalls of the splicing magnetic core 100. The inclined surface 412 ensures that the laser emitted by the first laser sensor 21 is angled relative to the splicing magnetic core 100, guaranteeing that the laser illuminates the sidewalls of the splicing magnetic core 100. This allows the flatness detection device to adapt to splicing magnetic cores 100 of different thicknesses, further improving the design rationality of the flatness detection device. Similarly, the laser emitted by the second laser sensor 22 is also angled relative to the splicing magnetic core 100, enabling it to illuminate the sidewalls of the splicing magnetic core 100. Furthermore, the inclined surface 412 includes a plurality of spaced-apart circular holes. The first mounting bracket 42 is fixed to the circular holes by a second locking member. The first mounting bracket 42 is used to fix the first laser sensor 21 and the first laser emitter, preventing the first laser emitter from falling off the inclined surface 412. By fixing the first mounting bracket 42 at different circular holes, the distance between the two first mounting brackets 42 can be adjusted, thereby adjusting the distance between the connected first laser sensors 21. The distance between the second laser sensors 22 is also adjusted in the same way. In this embodiment, the second locking member can be a bolt. The first mounting bracket 42 is L-shaped, with one folded edge fixed to the first base 41 and the other folded edge opposite to the inclined surface 412. The first laser sensor 21 is mounted on the folded edge opposite to the inclined surface 412.

[0048] For example, the second bracket 5 includes a second base 51, a first plate 52, a plurality of second plates 53 and a plurality of third plates 54. The second base 51 is fixed to the base plate 6. The first plate 52 is connected to the second base 51 and is perpendicular to the base plate 6. The plurality of second plates 53 are perpendicularly connected to the first plate 52 and are located beside the right-angle positioning fixture 1. The plurality of third laser sensors 23 are respectively disposed at the bottom of the plurality of second plates 53 and are opposite to the splicing magnetic core 100. The laser emitted by the plurality of third laser sensors 23 can correspondingly irradiate the sidewalls of the small magnetic cores divided into multiple rows in the splicing magnetic core 100 to detect the flatness of the sidewalls of the splicing magnetic core 100 along the width direction. Multiple third plates 54 are placed on top of multiple second plates 53. The third plates 54 are perpendicularly connected to the second plates 53 and face the right-angle positioning fixture 1. Multiple fourth laser sensors 24 are correspondingly placed on the multiple third plates 54, so that the fourth laser sensors 24 are positioned above the splicing magnetic core 100. The lasers emitted by the multiple fourth laser sensors 24 irradiate the upper surface of multiple small magnetic cores in the splicing magnetic core 100 to detect the flatness of the upper surface of the splicing magnetic core 100.

[0049] The connection positions of multiple fourth laser sensors 24 and the third plate 54 are adjustable. Different specifications of the small magnetic cores used in the spliced ​​magnetic cores 100 have different specifications. For different specifications of spliced ​​magnetic cores 100, by adjusting the fixed positions of the fourth laser sensors 24 and the third plate 54, the lasers of multiple fourth laser sensors 24 can correspondingly irradiate the upper surfaces of multiple small magnetic cores, making the planar detection device adaptable to different specifications of spliced ​​magnetic cores 100 and improving the rationality of the planar detection device design. The third plate 54 is provided with a strip-shaped guide hole 541. By adjusting the installation position of the fourth laser sensors 24 and the strip-shaped guide hole 541, the connection position between the fourth laser sensors 24 and the third plate 54 is adjusted.

[0050] Furthermore, such as Figure 2 and Figure 6As shown, a clearance hole 62 is provided on the base plate 6, and the third laser sensor 23 is partially placed inside the clearance hole 62. For the thinner splicing magnetic core 100, this ensures that the laser emitted by the third laser sensor 23 can irradiate the side wall of the splicing magnetic core 100. The setting of the clearance hole 62 can further improve the rationality of the planar detection device design. The second plate 53 includes a first vertical plate 531 and a second vertical plate 532 that are fitted together. The first vertical plate 531 is connected to the first plate 52, and the third plate 54 is placed on top of the first vertical plate 531. The connection position between the second vertical plate 532 and the first vertical plate 531 is adjustable, thus adjusting the height of the third laser sensor 23 according to the thickness of the splicing magnetic core 100 being detected, thereby improving the rationality of the planar detection device design. Specifically, the first vertical plate 531 is provided with a plurality of first positioning holes along the height direction, and the second vertical plate 532 is provided with second positioning holes. By aligning the second positioning holes with different first positioning holes and locking the first vertical plate 531 and the second vertical plate 532 with bolts, the installation position of the second vertical plate 532 and the first vertical plate 531 can be adjusted, thereby adjusting the height of the third laser sensor 23.

[0051] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A flatness detection device, configured to detect the flatness of the outer surface of a spliced ​​magnetic core (100), characterized in that, The flatness detection device includes: A right-angle positioning fixture (1) and multiple distance sensors are provided. The right-angle positioning fixture (1) is used to position and place the splicing magnetic core (100). The multiple distance sensors are arranged around the splicing magnetic core (100) and multiple distance data are obtained by measuring multiple positions on the side and top surface of the splicing magnetic core (100). The host computer (3) is communicatively connected to multiple distance sensors. The host computer can receive the distance data and compare the multiple distance data with multiple stored standard values ​​to determine whether the flatness of the outer surface of the spliced ​​magnetic core (100) meets the requirements.

2. The flatness detection device according to claim 1, characterized in that, The plurality of distance sensors are all laser sensors, and the plurality of laser sensors are divided into a first laser sensor, a second laser sensor, a third laser sensor and a fourth laser sensor. The first laser sensor and the second laser sensor are respectively located on both sides of the splicing magnetic core (100) along the length direction, the third laser sensor is located on one side of the splicing magnetic core (100) along the width direction, and the fourth laser sensor is located above the splicing magnetic core (100).

3. The flatness detection device according to claim 2, characterized in that, The flatness detection device further includes a first bracket (4) and a second bracket (5). There are two first brackets (4), which are used to fix the first laser sensor and the second laser sensor, respectively. The second bracket (5) is used to fix the third laser sensor and the fourth laser sensor.

4. The flatness detection device according to claim 3, characterized in that, The first laser sensor includes at least two first laser sensors (21), and the second laser sensor includes at least two second laser sensors (22). The two first laser sensors (21) and the two second laser sensors (22) are respectively arranged at intervals along the width direction of the splicing magnetic core (100). The third laser sensor includes a plurality of third laser sensors (23), all of which are located on one side of the splicing magnetic core (100) along the width direction. The fourth laser sensor includes a plurality of fourth laser sensors (24), all of which are placed above the splicing magnetic core (100). The plurality of third laser sensors (23) and the plurality of fourth laser sensors (24) are arranged at intervals along the length direction of the splicing magnetic core (100).

5. The flatness detection device according to claim 4, characterized in that, The flatness testing device also includes a base plate (6), and the right-angle positioning fixture (1), the first bracket (4) and the second bracket (5) are all placed on the base plate (6). The fixed positions of the right-angle positioning fixture (1), the first bracket (4) and the second bracket (5) relative to the base plate (6) can be adjusted.

6. The flatness detection device according to claim 5, characterized in that, The fixed positions of the two first laser sensors (21) and the first bracket (4) are adjustable, and the fixed positions of the multiple third laser sensors (23) and the multiple fourth laser sensors (24) and the second bracket (5) are adjustable.

7. The flatness detection device according to claim 6, characterized in that, The first bracket (4) includes a first base (41) and two first mounting brackets (42). The first base (41) includes a mounting surface (411) and an inclined surface (412). The mounting surface (411) is provided with a strip hole (413). A first locking member fixes the first base (41) and the base plate (6) through the strip hole (413). The first laser sensor (21) is placed on the inclined surface (412). The inclined surface (412) includes a plurality of spaced circular holes. The first mounting bracket (42) is fixed to the circular holes by a second locking member. The first mounting bracket (42) is used to fix the first laser sensor (21).

8. The flatness detection device according to claim 6, characterized in that, The second bracket (5) includes a second base (51), a first plate (52), multiple second plates (53) and multiple third plates (54). The second base (51) is fixed to the base plate (6). The first plate (52) is connected to the second base (51) and is perpendicular to the base plate (6). Multiple second plates (53) are perpendicularly connected to the first plate (52) and located beside the right-angle positioning fixture (1). Multiple third laser sensors (23) are placed at the bottom of multiple second plates (53) and opposite to the splicing magnetic core (100). Multiple third plates (54) are placed at the top of multiple second plates (53). The third plates (54) are perpendicularly connected to the second plates (53) and face the right-angle positioning fixture (1). Multiple fourth laser sensors (24) are correspondingly placed on multiple third plates (54).

9. The flatness detection device according to claim 8, characterized in that, The connection positions of the plurality of fourth laser sensors (24) and the third plate (54) are adjustable.

10. The flatness detection device according to claim 9, characterized in that, The base plate (6) is provided with a clearance hole (62), and the third laser sensor (23) is partially placed in the clearance hole (62); the second plate (53) includes a first vertical plate (531) and a second vertical plate (532) that are fitted together, the first vertical plate (531) is connected to the first plate (52), the third plate (54) is placed on top of the first vertical plate (531), and the connection position between the second vertical plate (532) and the first vertical plate (531) can be adjusted.

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