Polishing device for charging gun PCB

Abstract

The utility model relates to the technical field of PCB processing, in particular to a charging gun PCB polishing device which comprises a workbench, a plurality of fixing frames are arranged at the bottom of the inner side of the workbench, limiting sliding rods are arranged in the fixing frames, screw rods are arranged at the positions, close to the limiting sliding rods, in the fixing frames, and the screw rods are connected with the workbench. A sliding block is slidably connected into the fixing frame, the limiting sliding rod penetrates through the sliding block and is slidably connected with the sliding block, the screw penetrates through the sliding block and is in threaded connection with the sliding block, and a first telescopic rod is arranged in the sliding block. The first telescopic rod drives the clamping plate to clamp the PCB, then the extending end of the second telescopic rod drives the grinding motor to fall to grind the surface of the PCB, the position adjusting block moves to drive the grinding motor to comprehensively grind one face of the PCB, and the first motor can drive the clamping plate to rotate to turn over the PCB to grind the other face of the PCB. And through multi-face grinding, the grinding efficiency of the PCB is improved, and the grinding uniformity and quality can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board processing, in particular to a grinding device for a charging gun PCB board. Background Art

[0002] The charging device for electric vehicles is a charging gun, which is connected to the rechargeable battery of the electric vehicle through a cable to provide the required power to the battery. According to the charging method adopted, the charging gun is mainly divided into AC charging gun and DC charging gun.

[0003] AC charging guns use household electrical outlets to provide AC power and are generally suitable for slow charging. Although the charging time is longer, the equipment is simple and the price is relatively low. On the other hand, DC charging guns use high-voltage fast charging technology to directly transmit electrical energy to the battery of the electric vehicle. Although professional equipment and high technical requirements are required, its charging time is shorter.

[0004] For electric vehicles, choosing and using the right charging gun is crucial to ensuring the life and safety of the battery. The PCB board inside the charging gun is the core part of the circuit and is responsible for implementing various functions.

[0005] PCB, also known as printed circuit board, is the substrate of electronic circuits, which undertakes the important tasks of conducting electricity, supporting and connecting electronic components. In the production process, it involves multiple steps such as circuit design, circuit board manufacturing, patch processing, welding, inspection and assembly.

[0006] In the charging gun, the PCB board plays a vital role. It is responsible for the electronic control and conversion functions, converting the input electrical energy into the DC power required by the electric vehicle battery. In addition, it also charges and protects the battery through the control circuit and protection circuit.

[0007] PCB polishing is a key step in the production of charging guns. The purpose is to remove oil, oxides and impurities on the surface, improve its surface quality and conductivity, and thus ensure the safety and reliability of the charging gun.

[0008] However, there are some problems with the current technology. Traditional PCB board polishing methods mainly use manual or mechanical methods to perform single-sided polishing, which is not only inefficient, but also difficult to ensure the uniformity and quality of polishing. Especially in the manufacturing process, the quality and surface smoothness of PCB boards are crucial to the performance and reliability of the product. Therefore, a device that can achieve multi-sided polishing at the same time is needed to improve the polishing efficiency and surface quality. Utility Model Content

[0009] The purpose of the utility model is to provide a grinding device for a charging gun PCB board, so as to solve the problem that the traditional PCB board grinding method proposed in the above background technology mainly adopts single-sided grinding by manual or mechanical means, which is not only inefficient but also difficult to ensure the uniformity and quality of grinding.

[0010] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a grinding device for the PCB board of a charging gun, including a workbench, a plurality of fixing frames are arranged at the inner bottom of the workbench, a limiting sliding rod is arranged inside the fixing frame, a screw is arranged at a position near the limiting sliding rod inside the fixing frame, a slider is slidably connected inside the fixing frame, the limiting sliding rod passes through the slider and is slidably connected, the screw passes through the slider and is threadedly connected, a telescopic rod 1 is arranged inside the slider, one end of the telescopic rod 1 is fixedly connected to a motor 1, and the output end of the motor 1 is fixedly connected to a clamping plate A positioning plate is fixedly connected to the top of the workbench, and a plurality of placement grooves are opened inside the positioning plate. Motor three is slidably connected inside the placement groove. A rack is arranged inside the placement groove. An adjusting gear is fixedly connected to the output end of motor three, and the adjusting gear is meshed with the rack. An adjusting rod is arranged on one side of motor three, and an adjusting block is slidably connected to the side wall of the adjusting rod. A telescopic rod two is arranged at the bottom of the adjusting block, and a grinding motor is fixedly connected to one end of the telescopic rod two. A dust suction mechanism is arranged at the bottom of the workbench, and the dust suction mechanism is used to collect dust after grinding of the PCB board.

[0011] The utility model is further configured that a grinding disc is fixedly connected to the output end of the grinding motor.

[0012] The utility model is further configured that the vacuum cleaner comprises a dust collecting box arranged at the bottom of the workbench, and the top of the dust collecting box is connected to a fan through a pipeline.

[0013] The utility model is further configured that the top of the fan is connected with an exhaust hood through a pipeline, and the top of the exhaust hood is fixedly connected to the workbench.

[0014] The utility model is further configured that a plurality of openings are provided through the bottom of the workbench located inside the dust collecting box, and protective grilles are provided above the openings.

[0015] The utility model is further configured that a placing table is arranged near the center of the inner bottom of the workbench, and a PCB board is placed above the placing table.

[0016] The utility model is further configured that a protective cover is arranged on the top of the fixing frame, a gear set is arranged between the protective cover and the fixing frame, and one end of the screw rod passes through the fixing frame and is connected to the gear set.

[0017] The utility model is further configured that a second motor is provided on one side of the protective cover, and an output end of the second motor penetrates the protective cover and is connected to a gear set.

[0018] The beneficial effects of the utility model are as follows:

[0019] The beneficial effects of the grinding device for the PCB board of a charging gun of the utility model are as follows:

[0020] By placing the PCB board on the placement table, the telescopic rod one drives the clamping plate to clamp the PCB board, and then the extended end of the telescopic rod two drives the grinding motor to fall and grind the surface of the PCB board. The movement of the motor three will drive the adjustment rod to move to control the movement of the adjustment block. The movement of the adjustment block drives the grinding motor to comprehensively grind one side of the PCB board. When the grinding of one side of the PCB board is completed, the telescopic rod two drives the grinding motor to rise, and then the motor two drives the screw rod to rotate to adjust the height of the slider in the fixed frame. The slider drives the PCB board to rise through the telescopic rod one, and then the motor one drives the clamping plate to rotate to turn the PCB board over and grind the other side. The efficiency of PCB board grinding is increased by multi-sided grinding, and the uniformity and quality of grinding can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work:

[0022] Figure 1 This is a three-dimensional structural diagram of a grinding device for a charging gun PCB board according to an embodiment of the utility model;

[0023] Figure 2 This is a bottom view of a grinding device for a charging gun PCB board according to an embodiment of the utility model;

[0024] Figure 3 This is a grinding device for a charging gun PCB board according to an embodiment of the utility model. Figure 1 Enlarged view of point A in the middle;

[0025] Figure 4 This is a grinding device for a charging gun PCB board according to an embodiment of the utility model. Figure 1 Explosion diagram at A in the middle;

[0026] Figure 5 This is a grinding device for a charging gun PCB board according to an embodiment of the utility model. Figure 2 Enlarged view of point B in the middle;

[0027] Figure 6This is a grinding device for a charging gun PCB board according to an embodiment of the utility model. Figure 2 Sectional view at point B.

[0028] The markings in the figure are: 1. workbench; 2. placement table; 3. protective grille; 4. exhaust hood; 5. fan; 6. dust box; 7. fixed frame; 8. limit slide bar; 9. slider; 10. telescopic rod one; 11. motor one; 12. clamping plate; 13. screw rod; 14. protective cover; 15. motor two; 16. gear set; 17. adjustment plate; 18. placement slot; 19. rack; 20. motor three; 21. adjustment gear; 22. adjustment rod; 23. adjustment block; 24. telescopic rod two; 25. grinding motor; 26. PCB board. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other; the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present utility model.

[0030] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limitations of the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or a transmission connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements.

[0031] See also Figure 1 , 2 , 3 and Figure 4 , 56. A grinding device for a charging gun PCB board, comprising a workbench 1, a plurality of fixing frames 7 are arranged at the bottom of the inner side of the workbench 1, a limiting slide bar 8 is arranged inside the fixing frame 7, a screw 13 is arranged near the limiting slide bar 8 inside the fixing frame 7, a slider 9 is slidably connected inside the fixing frame 7, the limiting slide bar 8 penetrates the slider 9 and is slidably connected, the screw 13 penetrates the slider 9 and is threadedly connected, a telescopic rod 10 is arranged inside the slider 9, one end of the telescopic rod 10 is fixedly connected to a motor 11, an output end of the motor 11 is fixedly connected to a clamping plate 12, an adjustment disk 17 is fixedly connected inside the top of the workbench 1, and the adjustment disk 17 A plurality of placement grooves 18 are provided inside, a motor three 20 is slidably connected inside the placement groove 18, a rack 19 is provided inside the placement groove 18, an adjusting gear 21 is fixedly connected to the output end of the motor three 20, the adjusting gear 21 is meshed with the rack 19, an adjusting rod 22 is provided on one side of the motor three 20, an adjusting block 23 is slidably connected to the side wall of the adjusting rod 22, a telescopic rod two 24 is provided at the bottom of the adjusting block 23, a grinding motor 25 is fixedly connected to one end of the telescopic rod two 24, a grinding disc is fixedly connected to the output end of the grinding motor 25, and a dust suction mechanism is provided at the bottom of the workbench 1, which is used to collect dust after the PCB board is polished.

[0032] By adopting the above technical solution, the PCB board 26 is placed on the placement table 2, the telescopic rod 10 drives the clamping plate 12 to clamp the PCB board 26, and then the extended end of the telescopic rod 24 drives the grinding motor 25 to fall and grind the surface of the PCB board 26, the movement of the motor 3 20 will drive the adjustment rod 22 to move and control the movement of the adjustment block 23, and the movement of the adjustment block 23 drives the grinding motor 25 to fully grind one side of the PCB board 26. When the grinding of one side of the PCB board 26 is completed, the telescopic rod 24 drives the grinding motor 25 to rise, and then the motor 2 15 drives the screw 13 to rotate and adjust the height of the slider 9 in the fixed frame 7. The slider 9 drives the PCB board 26 to rise through the telescopic rod 10, and then the motor 1 11 drives the clamping plate 12 to rotate to turn over the PCB board 26, so as to grind the other side of the PCB board 26.

[0033] The vacuum cleaner includes a dust box 6 arranged at the bottom of the workbench 1, the top of the dust box 6 is connected to a fan 5 through a pipeline, the top of the fan 5 is connected to an exhaust hood 4 through a pipeline, the top of the exhaust hood 4 is fixedly connected to the workbench 1, and a plurality of openings are opened through the bottom of the workbench 1 at the internal position of the dust box 6, and a protective grille 3 is arranged above the opening.

[0034] By adopting the above technical solution, dust will be generated during the grinding process of the PCB board 26, and the fan 5 will exhaust air through the openings opened by the exhaust hood 4 and the workbench 1. The protective grille 3 above the opening of the workbench 1 is used to prevent foreign objects from falling into the opening. The exhaust of the fan 5 will suck the dust generated by the PCB board 26 into the dust collection box 6.

[0035] A protective cover 14 is provided on the top of the fixing frame 7, a gear set 16 is provided between the protective cover 14 and the fixing frame 7, one end of the screw rod 13 passes through the fixing frame 7 and is connected to the gear set 16, and a motor 2 15 is provided on one side of the protective cover 14, and the output end of the motor 2 15 passes through the protective cover and is connected to the gear set 16.

[0036] By adopting the above technical solution, the second motor 15 drives the screw 13 to rotate through the gear set 16, and the screw 13 rotates to adjust the height of the slider 9 in the fixing frame 7.

[0037] The working principle of the utility model is that the traditional PCB board 26 grinding method mainly adopts manual or mechanical method to perform single-sided grinding, which is not only inefficient, but also difficult to ensure the uniformity and quality of grinding. When in use, the PCB board 26 is placed on the placement table 2, and then the extended end of the telescopic rod 10 is extended to drive the clamping plate 12 of the motor 11 to approach the PCB board 26, and the PCB board 26 is clamped by the clamping plate 12, and then the extended end of the telescopic rod 24 drives the grinding motor 25 to fall, so that the grinding disc of the grinding motor 25 is close to the surface of the PCB board 26, and then the grinding motor 25 drives the grinding disc to rotate to grind the PCB board 26;

[0038] There are two groups of placement slots 18 in total. An adjustment rod 22 is arranged between the motors 3 20 in each group of placement slots 18. The motor 3 20 inside the placement slot 18 drives the adjustment gear 21 to rotate. The adjustment gear 21 rotates and works with the rack 19 to drive the motor 3 20 to move inside the placement slot 18. The movement of the motor 3 20 will drive the adjustment rod 22 to move. The adjustment rod 22 controls the movement of the adjustment block 23 by movement. The movement of the adjustment block 23 will drive the grinding motor 25 to drive the grinding disk to move. Through the movement, one side of the PCB board 26 is fully polished. When one side of the PCB board 26 is polished, the telescopic rod 24 drives the grinding motor 25 to rise, and then the motor 2 15 drives the screw 13 to rotate through the gear set 16. The screw 13 rotates to adjust the height of the slider 9 in the fixed frame 7. The slider 9 drives the PCB board 26 to rise through the telescopic rod 10, and then the motor 11 drives the clamping plate 12 to rotate to turn the PCB board 26 over, so as to polish the other side of the PCB board 26.

[0039] Dust will be generated during the grinding process of the PCB board 26, and the fan 5 will exhaust air through the openings opened by the exhaust hood 4 and the workbench 1. The protective grille 3 above the opening of the workbench 1 is used to prevent foreign objects from falling into the opening. The exhaust of the fan 5 will suck the dust generated by the PCB board 26 into the dust collection box 6.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0041] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for polishing a charging gun PCB, comprising a workbench (1), characterized in that: A plurality of fixing frames (7) are arranged at the bottom of the inner side of the workbench (1), a limiting sliding rod (8) is arranged inside the fixing frame (7), a screw rod (13) is arranged inside the fixing frame (7) near the limiting sliding rod (8), a sliding block (9) is slidably connected inside the fixing frame (7), the limiting sliding rod (8) passes through the sliding block (9) and is slidably connected, the screw rod (13) passes through the sliding block (9) and is threadedly connected, a telescopic rod (10) is arranged inside the sliding block (9), one end of the telescopic rod (10) is fixedly connected to a motor (11), the output end of the motor (11) is fixedly connected to a clamping plate (12), and a positioning disk (17) is fixedly connected inside the top of the workbench (1); A plurality of placement grooves (18) are provided inside the adjustment plate (17), a motor three (20) is slidably connected inside the placement groove (18), a rack (19) is provided inside the placement groove (18), an adjustment gear (21) is fixedly connected to the output end of the motor three (20), the adjustment gear (21) is meshingly connected with the rack (19), an adjustment rod (22) is provided on one side of the motor three (20), an adjustment block (23) is slidably connected to the side wall of the adjustment rod (22), a telescopic rod two (24) is provided at the bottom of the adjustment block (23), and a grinding motor (25) is fixedly connected to one end of the telescopic rod two (24); A dust suction mechanism is provided at the bottom of the workbench (1), and the dust suction mechanism is used to collect dust after the PCB board is polished.

2. The grinding device for a charging gun PCB according to claim 1, characterized in that: The output end of the grinding motor (25) is fixedly connected with a grinding disc.

3. The grinding device for a charging gun PCB according to claim 1, characterized in that: The vacuum cleaner comprises a dust collecting box (6) arranged at the bottom of the workbench (1), and the top of the dust collecting box (6) is connected to a fan (5) via a pipeline.

4. The grinding device for a charging gun PCB according to claim 3, characterized in that: The top of the fan (5) is connected to an exhaust hood (4) via a pipeline, and the top of the exhaust hood (4) is fixedly connected to the workbench (1).

5. The grinding device for a charging gun PCB according to claim 4, characterized in that: The bottom of the workbench (1) is located inside the dust box (6) and is provided with a plurality of openings, and a protective grille (3) is arranged above the openings.

6. The grinding device for a charging gun PCB according to claim 1, characterized in that: A placement table (2) is arranged near the center position at the inner bottom of the workbench (1), and a PCB board (26) is placed above the placement table (2).

7. The grinding device for a charging gun PCB according to claim 1, characterized in that: A protective cover (14) is arranged on the top of the fixing frame (7), a gear set (16) is arranged between the protective cover (14) and the fixing frame (7), and one end of the screw rod (13) passes through the fixing frame (7) and is connected to the gear set (16).

8. The grinding device for a charging gun PCB according to claim 7, characterized in that: A second motor (15) is disposed on one side of the protective cover (14), and an output end of the second motor (15) passes through the protective cover (14) and is connected to a gear set (16).

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