Manufacturing device of direct-current high-voltage bus filter

Abstract

The invention belongs to the technical field of integrated circuit manufacturing processes, and discloses a manufacturing device of a direct-current high-voltage bus filter, which is characterized in that a pressing rivet module rivets and presses a first group of embedded nuts onto nut through holes of a connecting copper bar to form a riveted and pressed connecting copper bar; collecting a first image of the riveting connection copper bar; judging whether the riveting connection copper bar is qualified or not according to the first image; the injection molding module is used for carrying out injection molding on the second group of embedded nuts and the qualified riveting connection copper bar to obtain a connection copper bar injection molding part; collecting a second image of the connecting copper bar injection molding part; and judging whether the connecting copper bar injection molding part is qualified or not according to the second image. According to the invention, on-line quality inspection of the direct-current high-voltage bus filter can be realized, and the yield and the production efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of integrated circuit manufacturing process, and in particular to a manufacturing device for a DC high-voltage bus filter. Background Art

[0002] In the context of the rapid development of new energy vehicles, the operation of high-power vehicle electricity poses a huge design challenge to the electrical connection of the filter in the motor controller system. In the electric drive system, the filter is a key component for filtering, removing low-frequency noise, and optimizing EMC electromagnetic parameters. Due to the compact space of the electric drive controller and the structure of the filter itself, multiple functional components such as capacitors, magnetic rings, positive and negative high-voltage rows need to be connected, which increases the complexity of the filter.

[0003] However, in the existing filter production system, it is impossible to realize online detection of product production status during the manufacturing process, resulting in a high rate of defective filters, low production efficiency, and a large waste of raw materials. Summary of the invention

[0004] The present application provides a manufacturing device for a DC high-voltage bus filter, which can realize online quality inspection of the DC high-voltage bus filter and improve the yield rate and production efficiency of the DC high-voltage bus filter.

[0005] The embodiment of the present application provides a manufacturing device for a DC high-voltage bus filter, comprising a riveting module, an injection molding module, a first capacitor installation module, a magnetic ring installation module, and a positive and negative copper bar welding module sequentially arranged on a first conveyor line, and a second capacitor welding module arranged on a second conveyor line;

[0006] The riveting module is used to rivet the first group of embedded nuts onto the nut through holes of the connecting copper bar to form a riveted connected copper bar; and collect a first image of the riveted connected copper bar; judge whether the riveted connected copper bar is qualified according to the first image; and remove the unqualified riveted connected copper bar from the first conveyor line; the injection molding module is used to injection mold the second group of embedded nuts and the qualified riveted connected copper bar to obtain a connected copper bar injection molded part; and collect a second image of the connected copper bar injection molded part; judge whether the connected copper bar injection molded part is qualified according to the second image; and remove the unqualified connected copper bar injection molded part. The parts are removed from the first conveyor line; the first capacitor installation module is used to install the X capacitor and the X2 capacitor into the installation groove of the qualified connection copper bar injection molding part; the second capacitor welding module is used to weld the Y capacitor and the Y2 capacitor to the grounding copper bar, and install them into the installation groove of the connection copper bar injection molding part on the first conveyor line; the magnetic ring installation module is used to install the magnetic ring into the magnetic ring fixing groove of the connection copper bar injection molding part; the positive and negative copper bar welding module welds the X capacitor, the X2 capacitor, the Y capacitor and the Y2 capacitor to the positive and negative copper bars to obtain a DC high-voltage bus filter.

[0007] Furthermore, the first group of inlay nuts includes M6 inlay nuts and M5 inlay nuts.

[0008] Furthermore, the second set of inlay nuts includes 2 M8 inlay nuts, 1 M6 inlay nut and 3 M5 inlay nuts.

[0009] Furthermore, the riveting module is used to input the first image into an image recognition model to obtain a first gap between the first group of embedded nuts and the riveted copper busbar and a scratch depth of the riveted copper busbar; determine whether the first gap is greater than a preset gap threshold, or whether the scratch depth is greater than a preset depth threshold; if so, the riveted copper busbar is unqualified.

[0010] Furthermore, the injection molding module is used to input the second image into the image recognition model to obtain the center offset distance of the second group of inlaid nuts and the cracks, missing material positions and missing material areas on the connecting copper bar injection molding; determine whether there are cracks on the connecting copper bar injection molding, or whether the missing material positions are within a preset range of the second group of inlaid nuts; if so, the connecting copper bar injection molding is unqualified; if not, determine whether the center offset distance is greater than a preset offset threshold, or whether the missing material area is greater than a preset missing material threshold; if so, the connecting copper bar injection molding is unqualified.

[0011] Furthermore, the second capacitor welding module is used to bend one pin of the Y capacitor and the Y2 capacitor; weld the bent pins of the Y capacitor and the Y2 capacitor to the grounding copper busbar; insert the grounding copper busbar into the positioning groove of the connecting copper busbar injection molding; and install the Y capacitor and the Y2 capacitor into the installation groove of the connecting copper busbar injection molding.

[0012] Furthermore, the device also includes a glue filling and drying module arranged on the first conveying line;

[0013] The glue filling and drying module is arranged before the magnetic ring installation module; the glue filling and drying module is used for filling glue and drying the installation grooves of the X capacitor and the X2 capacitor, and the installation grooves of the Y capacitor and the Y2 capacitor.

[0014] Furthermore, the positive and negative copper bar welding module uses screws to connect the positive and negative copper bars with the connecting copper bar injection molded parts; and welds the pins of the X capacitor and the X2 capacitor and the unbent pins of the Y capacitor and the Y2 capacitor to the positive and negative copper bars.

[0015] Furthermore, the preset gap threshold is 1 mm, and the preset depth threshold is 3 μm.

[0016] Furthermore, the preset offset threshold is 0.2 mm, and the preset material shortage threshold is 0.2 square millimeters.

[0017] In summary, compared with the prior art, the technical solution provided in the embodiment of the present application has at least the following beneficial effects:

[0018] A manufacturing device for a DC high-voltage bus filter provided in an embodiment of the present application performs quality inspection on semi-finished products in the manufacturing process through the image acquisition and recognition functions of a riveting module and an injection molding module during the manufacturing process of the filter. Not only is the quality inspection speed fast and does not affect the operation efficiency of the assembly line, but unqualified semi-finished products can also be screened out in time to avoid unqualified products wasting materials in subsequent process flows, thereby achieving efficient production of DC high-voltage bus filters and improving yield rate and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A structural diagram of a manufacturing device for a DC high-voltage bus filter provided as an exemplary embodiment of the present application.

[0020] Description of reference numerals:

[0021] 1. Connect the copper row box; 2. Connect the copper bar feeding module; 3. Connect the copper bar fixture; 4. The first conveyor line; 5. Inlay nut box; 6. Inlay nut feeding module; 7. Riveting module; 8. Injection feeding unit; 9. Injection molding machine; 10. X capacitor box; 11. X capacitor feeding unit; 12. X2 capacitor box; 13. X2 capacitor feeding unit; 14. Grounding copper row box; 15. Grounding copper bar feeding module; 16. The second conveyor line; 17. Y capacitor box; 18. Y capacitor feeding unit; 19. Y capacitor pin bending unit; 20. Y capacitor welding unit; 21. Y2 capacitor box Box; 22. Y2 capacitor feeding unit; 23. Y2 capacitor pin bending unit; 24. Y2 capacitor welding unit; 25. Grounding copper busbar installation unit; 26. Glue filling machine; 27. Drying machine; 28. Glue injection machine; 29. ​​Magnetic ring material box; 30. Magnetic ring feeding unit; 31. Magnetic ring glue filling unit; 32. Positive copper discharge box; 33. Positive copper busbar installation unit; 34. Negative copper discharge box; 35. Negative copper busbar installation unit; 36. Screw material box; 37. Screw feeding unit; 38. Positive and negative copper busbar welding unit; 39. Screw removal machine; 40. Performance detection module; 41. Packaging unloading module. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0023] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0024] See also Figure 1An embodiment of the present application provides a manufacturing device for a DC high-voltage bus filter, comprising a riveting module 7, an injection molding module, a first capacitor installation module, a magnetic ring installation module and a positive and negative copper busbar welding module, which are sequentially arranged on a first conveyor line 4, and a second capacitor welding module arranged on a second conveyor line 16.

[0025] The riveting module 7 is used to rivet the first group of embedded nuts onto the nut through holes of the connecting copper busbar to form a riveted connected copper busbar; and to collect a first image of the riveted connected copper busbar; to determine whether the riveted connected copper busbar is qualified based on the first image; and to remove the unqualified riveted connected copper busbar from the first conveyor line 4 and send it to a recycling box.

[0026] The first group of inlaid nuts includes M6 inlaid nuts and M5 inlaid nuts. The first conveyor line 4 is provided with a connecting copper row material box 1 and a connecting copper bar feeding module 2. The connecting copper bar feeding module 2 feeds the connecting copper bar in the connecting copper row material box 1 to the connecting copper bar fixture 3, and is transferred to the position of the riveting module 7 by the first conveyor line 4. The first conveyor line 4 is also provided with an inlaid nut material box 5 and an inlaid nut feeding module 6. The inlaid nut feeding module 6 clamps the M6 ​​inlaid nuts and the M5 inlaid nuts to the nut through-holes of the connecting copper bar. The first conveyor line 4 drives the connecting copper bar fixture 3 to continue to move to the position of the riveting module 7, and the riveting cylinder feeds to complete the riveting of the M6 ​​inlaid nuts and the M5 inlaid nuts, and then the first image is collected by the image sensor in the riveting module 7; wherein the connecting copper bar is red copper T2, nickel bottom, and matte tin on the surface.

[0027] The injection molding module is used to injection mold the second group of embedded nuts and the qualified riveted copper busbar to obtain the connected copper busbar injection-molded parts; and collect a second image of the connected copper busbar injection-molded parts; determine whether the connected copper busbar injection-molded parts are qualified based on the second image; and remove unqualified connected copper busbar injection-molded parts from the first conveyor line and send them to a recycling box.

[0028] Among them, the second group of inlay nuts includes 2 M8 inlay nuts, 1 M6 inlay nut and 3 M5 inlay nuts.

[0029] Specifically, the injection molding module includes an image sensor, an injection molding feeding unit 8 and an injection molding machine 9. The injection molding feeding unit 8 clamps the qualified riveted copper busbar into the injection mold, and then clamps 2 M8 inlaid nuts, 1 M6 inlaid nut, and 3 M5 inlaid nuts into the injection mold. The injection molding machine 9 is started to injection mold each inlaid nut together with the riveted copper busbar, and then the second image is collected by the image sensor. The injection molding process includes: installing the injection mold into the corresponding position in the middle of the injection molding machine 9, locking the code mold screws, connecting the mold water supply; setting the injection molding parameters, confirming that there are no missing parts, and starting the injection molding. The injection molding parameters can be seen in the table below:

[0030]

[0031] The first capacitor installation module is used to install the X capacitor and the X2 capacitor into the installation groove of the qualified connection copper bar injection molding.

[0032] The installation grooves where the X capacitors and X2 capacitors are located are not the same as the installation grooves where the Y capacitors and Y2 capacitors are located. The first capacitor installation module includes an X capacitor material box 10, an X capacitor loading unit 11, an X2 capacitor material box 12 and an X2 capacitor loading unit 13; the X capacitor loading unit 11 installs the X capacitors in the X capacitor material box 10 into the installation grooves of the copper bar injection molding connection, and the X2 capacitor loading unit 13 installs the X2 capacitors in the X2 capacitor material box 12 into the installation grooves of the copper bar injection molding connection.

[0033] The second capacitor welding module is used to weld the Y capacitor and the Y2 capacitor to the grounding copper bar, and install them into the installation groove of the connection copper bar injection molding on the first conveyor line. Specifically, the second capacitor welding module is used to bend one pin of the Y capacitor and the Y2 capacitor; weld the bent pins of the Y capacitor and the Y2 capacitor to the grounding copper bar; insert the grounding copper bar into the positioning groove of the connection copper bar injection molding; install the Y capacitor and the Y2 capacitor into the installation groove of the connection copper bar injection molding.

[0034] A grounding copper discharge box 14 and a grounding copper bar loading module 15 are also provided on the second conveying line 16 . The grounding copper bar loading module 15 discharges the grounding copper in the grounding copper discharge box 14 onto the second conveying line 16 .

[0035] The second capacitor welding module includes a Y capacitor material box 17, a Y capacitor feeding unit 18, a Y capacitor pin bending unit 19, a Y capacitor welding unit 20, a Y2 capacitor material box 21, a Y2 capacitor feeding unit 22, a Y2 capacitor pin bending unit 23, a Y2 capacitor welding unit 24 and a grounding copper busbar installation unit 25.

[0036] The first conveyor line 4 conveys the connecting copper busbar injection molded parts to the grounding copper busbar assembly station; the Y capacitor loading unit 18 and the Y2 capacitor loading unit load the Y capacitor and the Y2 capacitor respectively, and the Y capacitor and the Y2 capacitor are placed on the capacitor fixture and conveyed and loaded by the second conveyor line. During the loading process, they pass through the Y capacitor pin bending unit 19 and the Y2 capacitor pin bending unit 23 respectively, and one of the capacitor pins of the Y capacitor and the Y2 capacitor is bent respectively, and the bending height is adapted to the height of the corresponding positioning groove of the grounding copper busbar. The Y capacitor loading unit 18 clamps the two bent Y capacitors to the first welding station of the grounding copper bar, and one pin of each Y capacitor contacts the grounding copper bar for welding; the second conveyor line 16 continues to convey the welded grounding copper bar to the second welding station of the grounding copper bar, and the Y2 capacitor loading unit 22 clamps the two bent Y2 capacitors to the second welding station of the grounding copper bar, and one pin of each Y2 capacitor contacts the grounding copper bar for welding; the grounding copper bar installation unit 25 clamps the grounding copper bar with the welded capacitors on the second conveyor line to the grounding copper bar assembly station, places the grounding copper bar into the positioning groove of the connecting copper bar injection molding, and installs the Y capacitor and the Y2 capacitor into the installation groove of the connecting copper bar injection molding.

[0037] Furthermore, the device may also include a glue filling and drying module arranged on the first conveyor line.

[0038] The glue filling and drying module is arranged before the magnetic ring installation module; the glue filling and drying module is used to fill glue and dry the installation grooves of the X capacitor and the X2 capacitor, and the installation grooves of the Y capacitor and the Y2 capacitor. Specifically, the glue filling and drying module includes a glue filling machine 26 and a drying machine 27; the glue filling machine 26 fills insulating glue into the gap between the X capacitor, the X2 capacitor, the Y2 capacitor and the Y2 capacitor and the installation groove of the injection molded part of the connecting copper busbar, so that the capacitor is fixed in the installation groove.

[0039] Then, the connection copper bar injection molding is transported to the drying station, and the capacitor fixing glue is dried by the drying machine 27. The glue filling operation here can fill the capacitor on the filter with glue to fix it, ensure the stability of the capacitor, and indirectly increase the service life of the filter.

[0040] The magnetic ring installation module is used to install the magnetic ring into the magnetic ring fixing groove of the injection molded part connected to the copper busbar.

[0041] Specifically, the first conveyor line 4 conveys the connected copper bar injection molded parts to the magnetic ring assembly station, where the magnetic ring installation module includes a glue injection machine 28, a magnetic ring material box 29, a magnetic ring loading unit 30 and a magnetic ring glue pouring unit 31.

[0042] The glue injection machine 28 injects 2-3mm high fixing glue at the bottom of the magnetic ring fixing groove of the connecting copper busbar injection molded part. The magnetic ring loading unit 30 places the cleaned magnetic ring in the magnetic ring material box 29 into the magnetic ring fixing groove, and presses the bottom of the magnetic ring groove to make it tightly integrated with the fixing glue; the first conveyor line 4 continues to convey the connecting copper busbar injection molded part to the magnetic ring glue filling station, and the magnetic ring glue filling unit 31 injects glue at multiple points along the gap between the magnetic ring and the fixing groove until the glue and the top surface of the magnetic ring are basically level.

[0043] The positive and negative copper bar welding module welds the X capacitor, X2 capacitor, Y capacitor and Y2 capacitor with the positive and negative copper bars to obtain a DC high-voltage bus filter. Specifically, the positive and negative copper bar welding module uses screws to connect the positive and negative copper bars with the connection copper bar injection molding; the pins of the X capacitor and the X2 capacitor and the unbent pins of the Y capacitor and the Y2 capacitor are welded with the positive and negative copper bars to obtain a DC high-voltage bus filter. Among them, the positive and negative copper bar welding module includes a positive copper discharge box 32, a positive copper bar installation unit 33, a negative copper discharge box 34, a negative copper bar installation unit 35, a screw box 36, a screw feeding unit 37, a positive and negative copper bar welding unit 38, and a screw removal machine 39. The first conveyor line 4 conveys the connecting copper bar injection molded part to the positive and negative copper bar assembly stations. The positive copper bar installation unit 33 and the negative copper bar installation unit 35 clamp the positive and negative copper bars respectively, and place the positive and negative copper bars on the connecting copper bar injection molded part respectively. The screw feeding unit 37 locks the M6 ​​screws and the M8 screws on the positive copper bar. The positive copper bar is fastened to the connecting copper bar through the M6 ​​screws, and the screw feeding unit 37 locks the M5 and M8 screws on the negative copper bar.

[0044] The positive and negative copper bar welding unit 38 welds the pins of the X capacitor and the X2 capacitor to the positive and negative copper bars in turn, and welds the other pins of the Y capacitor and the Y2 capacitor to the positive and negative copper bars to form a DC high-voltage bus filter product; then the two M8 screws used to fix the positive and negative copper bars for auxiliary welding are removed by the screw removal machine 39; thereby eliminating the step of manually removing the screws and improving the automation capability. Here, the present application uses screws to fix the positive and negative copper bars before welding the capacitors, which ensures the accuracy of welding, reduces the situation where errors in the capacitor welding process lead to unqualified products, and indirectly improves the yield rate.

[0045] The process parameters for welding the capacitor pins by the positive and negative copper bar welding unit 38 are shown in the following table:

[0046]

[0047] Furthermore, after obtaining the product DC high-voltage bus filter, the DC high-voltage bus filter needs to be sent to the performance detection module 40 through the first transmission line 4. The performance detection module 40 is used to perform various electrical performance tests on the filter, such as cold insulation resistance test, withstand voltage test, inter-pole capacitance test, and inductance test.

[0048] Among them, measuring inductance includes selecting LS-Q test items on the digital bridge instrument, test condition ①: 10KHZ 0.3V result ≥13μH; test condition ②: 100KHZ 0.3V result ≥5μH, a total of 2 times.

[0049] The test capacitor includes selecting the CS-Q test item on the digital bridge instrument, and the test conditions are: test voltage 1V, frequency 1KHZ, and a total of 3 tests; ① measuring the positive copper busbar and the negative copper busbar, the test result is 1170μH±10%; ② measuring the positive copper busbar and the grounding copper busbar, the test result is 563μH±20%; ③ measuring the negative copper busbar and the grounding copper busbar, the test result must be 563μH±20%.

[0050] The torque test includes: 1) M5 inserts should be able to withstand torque ≥ 7.5Nm; 2) M6 inserts should be able to withstand torque ≥ 10N.m; 3. M8 inserts should be able to withstand torque ≥ 25N.m installation torque. Finally, the qualified products are sent to the packaging unloading module 41.

[0051] The above-mentioned embodiment provides a manufacturing device for a DC high-voltage bus filter. During the manufacturing process of the filter, the image acquisition and recognition functions of the riveting module and the injection molding module are used to perform quality inspection on the semi-finished products in the manufacturing process. Not only is the quality inspection speed fast and does not affect the operation efficiency of the assembly line, but unqualified semi-finished products can also be screened out in time to avoid unqualified products wasting materials in subsequent process flows, thereby achieving efficient production of DC high-voltage bus filters and improving the yield rate and production efficiency.

[0052] In some embodiments, the riveting module 7 includes a first image recognition unit, which is used to input the first image into the image recognition model to obtain the first gap between the first group of embedded nuts and the riveted copper busbar and the scratch depth of the riveted copper busbar; determine whether the first gap is greater than a preset gap threshold, or whether the scratch depth is greater than a preset depth threshold; if so, the riveted copper busbar is unqualified.

[0053] Among them, the image recognition model is a machine learning model trained using images of riveted copper busbars with the first gap and scratch depth marked. The preset gap threshold can be 1 mm, and the preset depth threshold can be 3 microns.

[0054] Specifically, there should be no gap of more than 1mm between the embedded nut and the connecting copper busbar after riveting. The allowable deformation of the copper busbar is that the deformation of the relevant hole line is within the range of 0.1mm. As for scratches, the main thing is not to scrape off the tin plating on the surface of the copper busbar. The standard tin plating thickness at the connection of the copper busbar is generally 3-10 microns. Therefore, the scratch depth cannot exceed 3 microns.

[0055] The above-mentioned embodiment can quickly identify and obtain various parameters on the riveted copper busbar through image recognition, and can realize rapid quality inspection of semi-finished products without affecting the operating efficiency of the production line.

[0056] In some embodiments, the injection molding module also includes a second image recognition unit, which is used to input the second image into the image recognition model to obtain the center offset distance of the second group of inlaid nuts and the cracks, missing material positions and missing material areas on the connecting copper bar injection molding; determine whether there are cracks on the connecting copper bar injection molding, or whether the missing material position is within a preset range of the second group of inlaid nuts; if so, the connecting copper bar injection molding is unqualified; if not, determine whether the center offset distance is greater than a preset offset threshold, or whether the missing material area is greater than a preset missing material threshold; if so, the connecting copper bar injection molding is unqualified.

[0057] Among them, the image recognition model is a machine learning model trained with images of copper busbar injection molded parts that have been marked with scratches, missing material area and corresponding positions, as well as the center offset distance. The preset offset threshold can be 0.2 mm, and the preset missing material threshold can be 0.2 square millimeters. Specifically, there cannot be any scratches on the copper busbar injection molded parts, and there cannot be missing material within the preset range of each nut. This is a necessary condition for qualification; secondly, after meeting the above conditions, it is necessary to ensure that the center position offset distance of each embedded nut is within 0.2mm. If any nut does not meet the requirements, it will be judged as unqualified; finally, if the missing material area outside the preset range of each nut is greater than 0.2 square millimeters, it will also be judged as unqualified.

[0058] The above-mentioned embodiment can quickly identify and obtain various parameters on the injection-molded connecting copper bar through image recognition, and can realize rapid quality inspection of semi-finished products without affecting the operating efficiency of the production line.

[0059] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A manufacturing device for a DC high voltage bus filter, characterized in that: It includes a riveting module, an injection molding module, a first capacitor installation module, a magnetic ring installation module and a positive and negative copper bar welding module which are sequentially arranged on a first conveyor line, and a second capacitor welding module which is arranged on a second conveyor line; The riveting module is used to rivet the first group of embedded nuts onto the nut through holes of the connected copper bar to form a riveted connected copper bar; and to collect a first image of the riveted connected copper bar; to determine whether the riveted connected copper bar is qualified according to the first image; and to remove the unqualified riveted connected copper bar from the first conveyor line; The injection molding module is used to perform injection molding on the second set of embedded nuts and the qualified riveted connection copper bar to obtain a connection copper bar injection molded part; and collecting a second image of the injection-molded connecting copper bar; Determine whether the connection copper bar injection molded part is qualified according to the second image; remove the unqualified connection copper bar injection molded part from the first conveyor line; The first capacitor installation module is used to install the X capacitor and the X2 capacitor into the installation groove of the qualified connection copper bar injection molding; the second capacitor welding module is used to weld the Y capacitor and the Y2 capacitor to the grounding copper bar and install them into the installation groove of the connection copper bar injection molding on the first conveyor line; The magnetic ring installation module is used to install the magnetic ring into the magnetic ring fixing groove of the connecting copper bar injection molding; the positive and negative copper bar welding module welds the X capacitor, X2 capacitor, Y capacitor and Y2 capacitor to the positive and negative copper bars to obtain a DC high-voltage bus filter.

2. The manufacturing device of the DC high voltage bus filter according to claim 1, characterized in that: The first group of inlay nuts includes M6 inlay nuts and M5 inlay nuts.

3. The manufacturing device of the DC high voltage bus filter according to claim 1, characterized in that: The second set of inlay nuts includes 2 M8 inlay nuts, 1 M6 inlay nut and 3 M5 inlay nuts.

4. The manufacturing device of the DC high voltage bus filter according to claim 1, characterized in that: The riveting module is used to input the first image into an image recognition model to obtain a first gap between the first group of embedded nuts and the riveted copper bar and a scratch depth of the riveted copper bar; and to determine whether the first gap is greater than a preset gap threshold, or whether the scratch depth is greater than a preset depth threshold; If yes, the riveted copper busbar is unqualified.

5. The manufacturing device of the DC high voltage bus filter according to claim 1, characterized in that: The injection molding module is used to input the second image into an image recognition model to obtain the center offset distance of the second group of inlaid nuts and the cracks, missing material positions and missing material areas on the connecting copper bar injection molding; determine whether there are cracks on the connecting copper bar injection molding, or whether the missing material positions are within a preset range of the second group of inlaid nuts; if so, the connecting copper bar injection molding is unqualified; if not, determine whether the center offset distance is greater than a preset offset threshold, or whether the missing material area is greater than a preset missing material threshold; if so, the connecting copper bar injection molding is unqualified.

6. The manufacturing device of the DC high voltage bus filter according to claim 1, characterized in that: The second capacitor welding module is used to bend one pin of the Y capacitor and the Y2 capacitor; weld the bent pins of the Y capacitor and the Y2 capacitor to the grounding copper busbar; insert the grounding copper busbar into the positioning groove of the connecting copper busbar injection molding; and install the Y capacitor and the Y2 capacitor into the installation groove of the connecting copper busbar injection molding.

7. The manufacturing device of the DC high voltage bus filter according to claim 6, characterized in that: It also includes a glue pouring and drying module arranged on the first conveying line; the glue pouring and drying module is arranged before the magnetic ring installation module; The glue filling and drying module is used to fill glue and dry the mounting grooves of the X capacitor and the X2 capacitor, and the mounting grooves of the Y capacitor and the Y2 capacitor.

8. The manufacturing device of the DC high voltage bus filter according to claim 6, characterized in that: The positive and negative copper bar welding module uses screws to connect the positive and negative copper bars with the connecting copper bar injection molded part; and welds the pins of the X capacitor and the X2 capacitor and the unbent pins of the Y capacitor and the Y2 capacitor to the positive and negative copper bars.

9. The manufacturing device of the DC high voltage bus filter according to claim 4, characterized in that: The preset gap threshold is 1 mm, and the preset depth threshold is 3 μm.

10. The manufacturing device of the DC high voltage bus filter according to claim 5, characterized in that: The preset offset threshold is 0.2 mm, and the preset material shortage threshold is 0.2 square millimeters.

Images