Polishing device for car lamp circuit board machining

Abstract

The invention belongs to the technical field of grinding processing, and particularly relates to a grinding device for processing a car lamp circuit board, which comprises a base, a movable pushing mechanism, a pressurizing grinding mechanism, a dust suction mechanism, a deepest recess detection feedback mechanism, a grinding thickness confirmation mechanism, a cleaning prompt mechanism, a replacement prompt mechanism and a PLC (Programmable Logic Controller). The polishing force and direction can be more accurately controlled, the device is more suitable for accurate polishing of the new energy automobile lamp circuit board, the flatness of the polished surface of the circuit board can be rapidly detected in advance, then the thickness needing to be polished is rapidly determined and fed back to subsequent polishing work, and polishing operation is automatically conducted.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding processing, and in particular relates to a grinding device for processing a circuit board of a vehicle lamp. Background Art

[0002] The car light circuit board is an important part of the car light system. It is used to connect the various electronic components of the car light, such as bulbs, resistors, capacitors, etc., to achieve circuit conduction and control. Through the circuit design on the circuit board, the brightness, flashing frequency and other parameters of the car light can be accurately controlled.

[0003] During the manufacturing process of the headlight circuit board, the precision of the production equipment, the unevenness of the raw materials and other factors may cause a certain degree of unevenness on the surface of the circuit board. The uneven circuit board may affect the installation and welding of electronic components, and may even cause short circuits, open circuits and other faults during the use of the circuit board. The unevenness of the circuit board surface can be eliminated by grinding to ensure that the flatness of the circuit board meets the design requirements. If the surface of the circuit board is uneven, the electronic components may tilt, loosen and other problems, affecting the performance and reliability of the headlight circuit board. New energy vehicle lights usually use advanced lighting technology, such as LED headlights, which require high-precision circuit boards to ensure accurate projection and light distribution of lights. Accurate circuit layout and component installation position can achieve the best optical effect, improve the brightness, uniformity and range of lighting, provide drivers with a good field of vision, and avoid glare to other road users.

[0004] At present, the circuit board is often polished by rotating the grinding disc. The grinding disc rotates quickly and can cover a larger area in a shorter time. It is more suitable for large-scale production or situations where fast polishing is required. However, due to the fast speed of the rotating grinding disc, high skills and experience are required during the operation to accurately control the depth and strength of the polishing, otherwise over-polishing or uneven polishing may occur. The friction between the high-speed rotating grinding disc and the surface of the circuit board will cause local overheating, posing a potential risk of thermal damage to the electronic components on the circuit board. The dust generated by the rotary polishing is more likely to fly in the air, making the dust treatment more difficult, causing a greater impact on the working environment and the health of the operators. Summary of the invention

[0005] The object of the present invention is to provide a grinding device for processing a circuit board of a vehicle lamp in view of the above-mentioned problems.

[0006] To achieve the above object, the present invention adopts the following technical solution: a grinding device for processing a circuit board of a vehicle lamp, comprising a base, and also comprising: A mobile pushing mechanism is fixedly mounted on the upper end of the base; A pressurized grinding mechanism is fixedly mounted on the front side of the moving end of the moving pushing mechanism; A dust suction mechanism, fixedly mounted on the pressurized grinding mechanism and the mobile pushing mechanism; A deepest depression detection feedback mechanism is fixedly mounted on the rear side of the mobile end of the mobile pushing mechanism; A grinding thickness confirmation mechanism is fixedly mounted on the upper end of the base and is electrically connected to the deepest depression detection feedback mechanism; A cleaning prompting mechanism is fixedly mounted on the outer wall of the mobile pushing mechanism and is transmission-connected to the mobile pushing mechanism; A replacement prompting mechanism is fixedly mounted on the outer wall of the moving pushing mechanism and is transmission-connected with the cleaning prompting mechanism; The PLC controller is fixedly mounted on the upper end of the base and is electrically connected to the mobile pushing mechanism, the pressure grinding mechanism, the dust suction mechanism, the deepest depression detection feedback mechanism, the grinding thickness confirmation mechanism, the cleaning prompt mechanism and the replacement prompt mechanism.

[0007] In the above-mentioned polishing device for processing car light circuit boards, the mobile pushing mechanism includes two electric slide rails symmetrically fixedly installed on the upper end of the base, the upper ends of the inner sliders of the two electric slide rails are fixedly installed with the same U-shaped support plate, the inner side of the U-shaped support plate is rotatably connected with a reciprocating screw rod, the outer wall of the U-shaped support plate is fixedly installed with a driving motor for driving the reciprocating screw rod to rotate, the rod wall of the reciprocating screw rod is threadedly sleeved with a moving seat, the upper end of the moving seat is fixedly installed with a limit slider, and the lower end of the horizontal part of the U-shaped support plate is provided with a limit slide groove that matches and slides with the limit slider.

[0008] In the above-mentioned grinding device for processing car light circuit boards, the pressurized grinding mechanism includes two first electric push rods symmetrically fixedly installed on the front side of the movable seat, and the lower movable ends of the two first electric push rods are fixedly connected to the same force equalizing frame, and a grinding plate is fixedly installed at the lower end of the force equalizing frame, and the bottom ends of the grinding plate on opposite sides are set to arc structures.

[0009] In the above-mentioned grinding device for processing car light circuit boards, the dust suction mechanism includes two suction heads symmetrically fixedly mounted on the outer wall of the force equalizing frame, the suction heads are arranged on the side of the grinding plate, and the rear ends of the two suction heads are fixedly connected to the same elastic suction pipe, and a filter assembly and a suction pump are installed on the elastic suction pipe, and the filter assembly and the suction pump are both fixedly mounted on the upper end of the U-shaped support plate.

[0010] In the above-mentioned grinding device for processing the circuit board of a vehicle light, the deepest depression detection feedback mechanism includes two second electric push rods symmetrically fixedly installed on the rear side of the moving seat, the lower moving ends of the two second electric push rods are fixedly connected to the same detection shell, a plurality of guide slide rods arranged side by side are fixedly installed on one side of the inner wall of the detection shell, and the plurality of guide slide rods are externally slidably sleeved with the same sliding plate, a plurality of compensation springs sleeved outside the guide slide rods are fixedly installed on the lower end of the sliding plate and the bottom of the inner wall of the detection shell, a resistance rod is also fixedly installed on the lower side of one end of the sliding plate, the lower end of the resistance rod passes through the lower end of the detection shell, and the rod wall of the resistance rod A transmission rack is embedded in the detection shell, and a speed-increasing gear box is fixedly installed on the bottom of the inner wall of the detection shell. The input end of the speed-increasing gear box is fixedly connected to a transmission gear meshing with the transmission rack. A feedback shell located on one side of the speed-increasing gear box is fixedly installed on the bottom of the inner wall of the detection shell. A transmission screw is rotatably connected to the inner wall of the feedback shell. One end of the transmission screw extends through the feedback shell and is fixedly connected to the output end of the speed-increasing gear box. A transmission seat is threadedly sleeved on the rod wall of the transmission screw. A feedback resistor rod arranged parallel to the transmission screw is also fixedly installed on the inner wall of the feedback shell. A feedback conductive contact piece electrically in contact with the feedback resistor rod is fixedly installed on the lower end of the transmission seat.

[0011] In the above-mentioned grinding device for processing the circuit board of a vehicle light, the grinding thickness confirmation mechanism includes a confirmation shell, a plurality of limit slide bars arranged side by side are fixedly installed on the lower side of the inner wall of the confirmation shell, and the plurality of limit slide bars are slidably sleeved with the same feedback plate outside, a plurality of return springs sleeved outside the limit slide bars are fixedly installed on the opposite side of the feedback plate and the confirmation shell, a feedback permanent magnet plate is fixedly installed on the side wall of the feedback plate, a feedback electromagnetic plate arranged opposite to the feedback permanent magnet plate is fixedly installed on the inner wall of the confirmation shell, and a plurality of springs are also fixedly installed at the middle position of the inner wall of the confirmation shell. Resistance rods are arranged side by side, and multiple resistance rods are slidably sleeved with the same force plate. The lower end of the force plate is arranged on the rear side of the feedback plate, and an in-position switch is fixedly installed on the upper side wall of the force plate. An adjusting screw is rotatably connected to the upper side of the inner wall of the confirmation shell, and an adjusting motor for driving the adjusting screw to rotate is fixedly installed on the outer wall of the confirmation shell. A trigger plate is threadedly sleeved on the rod wall of the adjusting screw. A failed switch corresponding to the position of the force plate is also fixedly installed on the rear side of the inner wall of the confirmation shell, and an alarm is fixedly installed on the outer wall of the confirmation shell.

[0012] In the above-mentioned polishing device for processing car light circuit boards, the cleaning reminder mechanism includes a reduction gear box and a cleaning reminder shell fixedly mounted on the outer wall of the U-shaped support plate, the input end of the reduction gear box is fixedly connected to one end of the reciprocating screw, and a vertically arranged first reciprocating screw is rotatably connected in the cleaning reminder shell, the upper end of the first reciprocating screw is transmission-connected to the output end of the reduction gear box through a bevel gear assembly, a cleaning reminder switch is fixedly mounted on one side of the inner wall of the cleaning reminder shell, and a first pressing plate is threadedly sleeved on the rod wall of the first reciprocating screw.

[0013] In the above-mentioned polishing device for processing vehicle light circuit boards, the replacement reminder mechanism includes a replacement reminder shell fixedly mounted on the outer wall of the U-shaped support plate, a second reciprocating screw is rotatably connected inside the replacement reminder shell, the upper end of the second reciprocating screw and the lower end of the first reciprocating screw are transmission-connected via a reduction sprocket assembly, a replacement reminder switch is fixedly mounted on one side of the inner wall of the replacement reminder shell, and a second pressing plate is threadedly sleeved on the rod wall of the second reciprocating screw.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By setting up a mobile pushing mechanism, a pressurized grinding mechanism, and a dust suction mechanism, a push-pull grinding method of the grinding plate is adopted. The push-pull movement of the grinding plate is relatively stable, and the strength and direction of the grinding can be more accurately controlled, which is conducive to the fine grinding of the circuit board. Compared with rotary grinding, the heat generated by push-pull grinding is relatively less, reducing the risk of thermal damage to electronic components on the circuit board. The dust generated by push-pull grinding with a grinding plate is more concentrated, and the dust can be adsorbed and processed more completely, reducing the damage to the circuit board itself and the pollution of the environment caused by the dust.

[0015] By setting up the deepest sag detection feedback mechanism and the grinding thickness confirmation mechanism, the flatness of the grinding surface of the circuit board can be quickly detected in advance, and then the thickness that needs to be polished can be quickly confirmed, and the feedback can be fed back to the subsequent polishing work to automatically perform the polishing operation. When the estimated polishing thickness exceeds 10% of the thickness of the circuit board itself, an alarm will be issued in time to remind the staff to make a choice, so as to avoid excessive polishing that will weaken the mechanical strength of the circuit board and affect the ability of the new energy vehicle headlight circuit board to carry electronic components.

[0016] By setting up the cleaning reminder mechanism and the replacement reminder mechanism, the blockage condition of the filter component in the dust suction mechanism can be self-judged based on the number of grinding times, and the staff can be reminded in time to take corresponding measures to avoid excessive blockage of the filter component affecting the quality of dust extraction, thereby affecting the processing quality of the circuit board and causing greater pollution to the environment. The wear degree of the grinding plate can also be calculated and judged based on the number of grinding times, and the staff can be reminded to replace the grinding plate in time to avoid the problem of excessive wear of the grinding plate affecting the grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the mobile pushing mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of the pressurized grinding mechanism and the dust suction mechanism of the present invention; Figure 4 It is a rear view structural schematic diagram of the deepest depression detection feedback mechanism of the present invention; Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure of the detection shell; Figure 6 yes Figure 5 The enlarged structure diagram of part A in the middle; Figure 7 It is a schematic diagram of the side cross-sectional structure of the grinding thickness confirmation mechanism of the present invention; Figure 8 It is a cross-sectional structural schematic diagram of the cleaning prompt mechanism of the present invention; Fig. 9 It is a cross-sectional structural schematic diagram of the replacement prompt mechanism of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the grinding plate of the present invention; Fig.11 It is a three-dimensional structural schematic diagram of the filter assembly of the present invention.

[0018] In the figure: 1 base, 2 mobile push mechanism, 21 electric slide rail, 22 U-shaped support plate, 23 reciprocating screw, 24 drive motor, 25 mobile seat, 3 pressurized grinding mechanism, 31 first electric push rod, 32 force equalizing frame, 33 grinding plate, 4 dust suction mechanism, 41 suction head, 42 elastic suction pipe, 43 filter assembly, 44 suction pump, 5 deepest depression detection feedback mechanism, 51 second electric push rod, 52 detection shell, 53 guide slide rod, 54 slide plate, 55 compensation spring, 56 contact rod, 57 transmission rack, 58 speed increasing gear box, 59 transmission gear, 510 feedback shell, 511 transmission screw, 512 transmission seat, 513 feedback resistor rod, 514 feedback conductive contact piece, 6 grinding thickness confirmation Mechanism, 61 confirmation shell, 62 limit slide bar, 63 feedback plate, 64 reset spring, 65 feedback permanent magnet plate, 66 feedback electromagnetic plate, 67 resistance rod, 68 force plate, 69 in-place switch, 610 adjustment screw, 611 adjustment motor, 612 trigger plate, 613 unqualified switch, 614 alarm, 7 cleaning reminder mechanism, 71 reduction gear box, 72 cleaning reminder shell, 73 first reciprocating screw, 74 bevel gear assembly, 75 cleaning reminder switch, 76 first press plate, 8 replacement reminder mechanism, 81 replacement reminder shell, 82 second reciprocating screw, 83 reduction sprocket assembly, 84 replacement reminder switch, 85 second press plate, 9 PLC controller. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] like Figure 1-Figure 11 As shown, a grinding device for processing a circuit board of a vehicle lamp includes a base 1 and also includes: The mobile pushing mechanism 2 is fixedly mounted on the upper end of the base 1. The mobile pushing mechanism 2 includes two electric slide rails 21 symmetrically fixedly mounted on the upper end of the base 1. The upper ends of the sliders in the two electric slide rails 21 are fixedly mounted with the same U-shaped support plate 22. The inner side of the U-shaped support plate 22 is rotatably connected with a reciprocating screw rod 23. The outer wall of the U-shaped support plate 22 is fixedly mounted with a driving motor 24 for driving the reciprocating screw rod 23 to rotate. The rod wall of the reciprocating screw rod 23 is threadedly sleeved with a moving seat 25. A limiting slider is fixedly mounted on the upper end of the moving seat 25. A limiting slide groove matching and slidingly connected with the limiting slider is opened at the lower end of the horizontal part of the U-shaped support plate 22, which can perform all-round movement to achieve comprehensive polishing of the circuit board.

[0021] The pressurized grinding mechanism 3 is fixedly mounted on the front side of the moving end of the mobile pushing mechanism 2. The pressurized grinding mechanism 3 includes two first electric push rods 31 symmetrically fixedly mounted on the front side of the moving seat 25. The lower moving ends of the two first electric push rods 31 are fixedly connected to the same force equalizing frame 32. A grinding plate 33 is fixedly mounted on the lower end of the force equalizing frame 32. The bottom ends of the grinding plate 33 on opposite sides are set to an arc structure, and a push-pull grinding method is adopted to achieve precise grinding of the circuit board.

[0022] The dust suction mechanism 4 is fixedly mounted on the pressurized grinding mechanism 3 and the mobile pushing mechanism 2. The dust suction mechanism 4 includes two suction heads 41 symmetrically fixedly mounted on the outer wall of the force equalizing frame 32. The suction heads 41 are arranged on the side of the grinding plate 33. The rear ends of the two suction heads 41 are fixedly connected to the same elastic suction pipe 42. A filter assembly 43 and a suction pump 44 are mounted on the elastic suction pipe 42. The filter assembly 43 and the suction pump 44 are both fixedly mounted on the upper end of the U-shaped support plate 22, which can more completely absorb and process the dust, thereby reducing the damage to the circuit board itself and the pollution of the environment caused by the dust.

[0023] The deepest depression detection feedback mechanism 5 is fixedly installed on the rear side of the moving end of the mobile pushing mechanism 2. The deepest depression detection feedback mechanism 5 includes two second electric push rods 51 symmetrically fixedly installed on the rear side of the moving seat 25. The lower moving ends of the two second electric push rods 51 are fixedly connected to the same detection shell 52. A plurality of guide slide rods 53 arranged side by side are fixedly installed on one side of the inner wall of the detection shell 52. The plurality of guide slide rods 53 are slidably sleeved with the same sliding plate 54 outside. A plurality of compensation springs 55 sleeved outside the guide slide rods 53 are fixedly installed on the lower end of the sliding plate 54 and the bottom of the inner wall of the detection shell 52. A resistance rod 56 is also fixedly installed on the lower side of one end of the sliding plate 54. The lower end of the resistance rod 56 extends through the lower end of the detection shell 52. A transmission rack 57 is embedded in the rod wall of the resistance rod 56. A speed increasing gear box 58 is also fixedly installed on the bottom of the inner wall of the detection shell 52. The input end of the speed-increasing gearbox 58 is fixedly connected with a transmission gear 59 meshing with the transmission rack 57. The bottom of the inner wall of the detection shell 52 is fixedly provided with a feedback shell 510 located on one side of the speed-increasing gearbox 58. The inner wall of the feedback shell 510 is rotatably connected with a transmission screw 511. One end of the transmission screw 511 extends through the feedback shell 510 and is fixedly connected to the output end of the speed-increasing gearbox 58. A transmission seat 512 is threadedly sleeved on the rod wall of the transmission screw 511. A feedback resistor rod 513 arranged parallel to the transmission screw 511 is also fixedly provided on the inner wall of the feedback shell 510. A feedback conductive contact piece 514 electrically contacting the feedback resistor rod 513 is fixedly provided at the lower end of the transmission seat 512, so as to quickly detect the flatness of the polished surface of the circuit board in advance, and then quickly confirm the thickness to be polished, and feedback it to the subsequent polishing work, so as to automatically perform the polishing operation.

[0024] The grinding thickness confirmation mechanism 6 is fixedly mounted on the upper end of the base 1 and is electrically connected to the deepest depression detection feedback mechanism 5. The grinding thickness confirmation mechanism 6 includes a confirmation shell 61. A plurality of limit slide bars 62 arranged side by side are fixedly mounted on the lower side of the inner wall of the confirmation shell 61. The plurality of limit slide bars 62 are slidably sleeved with the same feedback plate 63 outside. A plurality of return springs 64 sleeved outside the limit slide bars 62 are fixedly mounted on the opposite side of the feedback plate 63 and the confirmation shell 61. A feedback permanent magnet plate 65 is fixedly mounted on the side wall of the feedback plate 63. A feedback electromagnetic plate 66 arranged opposite to the feedback permanent magnet plate 65 is fixedly mounted on the inner wall of the confirmation shell 61. A plurality of resistance rods 67 arranged side by side are also fixedly mounted at the middle position of the inner wall of the confirmation shell 61. The resistance rod 67 is slidably sleeved on the outside with the same force plate 68, the lower end of the force plate 68 is arranged on the rear side of the feedback plate 63, and the upper end side wall of the force plate 68 is fixedly installed with an in-place switch 69, and the upper side of the inner wall of the confirmation shell 61 is rotatably connected with an adjusting screw 610, and the outer wall of the confirmation shell 61 is fixedly installed with an adjusting motor 611 for driving the adjusting screw 610 to rotate, and the rod wall of the adjusting screw 610 is threadedly sleeved with a trigger plate 612, and the rear side of the inner wall of the confirmation shell 61 is also fixedly installed with a disqualified switch 613 corresponding to the position of the force plate 68, and the outer wall of the confirmation shell 61 is fixedly installed with an alarm 614, which automatically determines the thickness required for grinding, and automatically senses feedback when the grinding thickness is reached, so as to perform precise grinding.

[0025] The cleaning reminder mechanism 7 is fixedly mounted on the outer wall of the mobile pushing mechanism 2 and is transmission connected to the mobile pushing mechanism 2. The cleaning reminder mechanism 7 includes a reduction gear box 71 and a cleaning reminder shell 72 fixedly mounted on the outer wall of the U-shaped support plate 22. The input end of the reduction gear box 71 is fixedly connected to one end of the reciprocating screw 23. A vertically arranged first reciprocating screw 73 is rotatably connected in the cleaning reminder shell 72. The upper end of the first reciprocating screw 73 is transmission connected to the output end of the reduction gear box 71 through a bevel gear assembly 74. A cleaning reminder switch 75 is fixedly mounted on one side of the inner wall of the cleaning reminder shell 72. A first pressing plate 76 is threadedly sleeved on the rod wall of the first reciprocating screw 73. The blockage condition of the filter component 43 in the dust suction mechanism 4 can be self-judged based on the number of grinding times, and the staff can be promptly reminded to take corresponding measures.

[0026] The replacement prompt mechanism 8 is fixedly mounted on the outer wall of the mobile pushing mechanism 2 and is transmission connected to the cleaning prompt mechanism 7. The replacement prompt mechanism 8 includes a replacement prompt shell 81 fixedly mounted on the outer wall of the U-shaped support plate 22. A second reciprocating screw 82 is rotatably connected in the replacement prompt shell 81. The upper end of the second reciprocating screw 82 and the lower end of the first reciprocating screw 73 are transmission connected via a reduction sprocket assembly 83. A replacement prompt switch 84 is fixedly mounted on one side of the inner wall of the replacement prompt shell 81. A second pressing plate 85 is threadedly sleeved on the rod wall of the second reciprocating screw 82. The second pressing plate 85 can calculate and judge the degree of wear of the grinding plate 33 based on the number of grinding times, and promptly remind the staff to replace the grinding plate 33 to avoid the problem of excessive wear of the grinding plate 33 affecting the grinding quality.

[0027] The PLC controller 9 is fixedly mounted on the upper end of the base 1 and is electrically connected to the moving pushing mechanism 2, the pressurized grinding mechanism 3, the dust suction mechanism 4, the deepest depression detection feedback mechanism 5, the grinding thickness confirmation mechanism 6, the cleaning prompt mechanism 7 and the replacement prompt mechanism 8 respectively.

[0028] The operating principle of the present invention is described as follows: the circuit board to be polished is fixed to the upper end of the base 1 by a clamp, and the second electric push rod 51 is first controlled to move by the PLC controller 9. The second electric push rod 51 pushes the detection shell 52 downward, so that the lower end of the resistance rod 56 is in resistance to the polishing surface of the circuit board, and the electric slide rail 21 realizes the longitudinal movement of the resistance rod 56 on the circuit board. The driving motor 24 drives the reciprocating screw rod 23 to rotate, and the threaded sleeve effect of the reciprocating screw rod 23 and the moving seat 25 enables the moving seat 25 to drive the resistance rod 56 to move horizontally on the circuit board, thereby enabling the resistance rod 56 to move comprehensively on the polishing surface of the circuit board. During the movement of the resistance rod 56, when encountering a depression on the surface of the circuit board, the resistance rod 56 is driven by the sliding plate 54 under the action of the compensation spring 55. 6 moves downward, thereby causing the transmission rack 57 to move relative to the transmission gear 59, thereby causing the transmission gear 59 to rotate, and the speed increasing gear box 58 drives the transmission screw 511 to rotate synchronously, and then the threaded sleeve effect of the transmission screw 511 and the transmission seat 512 causes the transmission seat 512 to drive the feedback conductive contact piece 514 to move forward along the feedback resistor rod 513, so that the access resistance value of the feedback resistor rod 513 becomes smaller. Specifically, when the contact rod 56 moves to the most concave part of the polished surface of the circuit board, the access resistance value of the feedback resistor rod 513 reaches the minimum value. Here, through the setting of the speed increasing gear box 58, the smaller displacement of the contact rod 56 can be fed back with a larger moving stroke, thereby making the feedback conductive contact piece 514 have a larger moving range along the feedback resistor rod 513, making the change feedback more obvious and clear; The feedback conductive contact 514 and the feedback resistor rod 513 are connected in series on the power supply circuit of the feedback electromagnetic plate 66. The PLC controller 9 controls the power supply device to supply power to the feedback electromagnetic plate 66. The feedback electromagnetic plate 66 is energized to generate the same magnetism as the feedback permanent magnet plate 65, thereby driving the feedback plate 63 to slide along the limit slide bar 62 to overcome the elastic force of the reset spring 64. Specifically, the deeper the most concave position of the polished surface of the circuit board, the smaller the access resistance of the feedback resistor rod 513, and the greater the power supply current of the feedback electromagnetic plate 66, thereby causing the feedback electromagnetic plate 66 to generate a greater magnetic force, which can drive the feedback plate 63 to slide a greater distance. During the sliding process of the feedback plate 63, the force-bearing plate 68 is pushed to slide synchronously along the resistance rod 67. The maximum sliding distance of the feedback plate 63 makes the force-bearing plate 68 Move to the final position, thereby driving the in-position switch 69 to move to the final position, so that the in-position switch 69 is maintained at the position of the required grinding amount. In this process, if the distance moved by the force plate 68 can press the unqualified switch 613, the unqualified switch 613 controls the alarm 614 to sound, thereby promptly reminding the staff that the depth of the most concave part of the current circuit board from the surface of the circuit board exceeds 10% of the thickness of the circuit board body. If you want to grind it flat, the grinding thickness will exceed 10% of the thickness of the circuit board body, which will affect the overall structural strength and performance of the circuit board. It is additionally stated that the side wall of the confirmation shell 61 is set as an openable side cover, and then when the in-position switch 69 needs to be reset after the grinding is completed, the force plate 68 can be manually pushed to reset; When the thickness of the circuit board to be polished does not exceed 10% of the thickness of the circuit board body, the PLC controller 9 first controls the second electric push rod 51 to drive the detection shell 52 to move upward, so that the abutment rod 56 is out of contact with the surface of the circuit board, and the PLC controller 9 then controls the first electric push rod 31 to push the force equalizing frame 32 and the polishing plate 33 downward, so that the polishing plate 33 contacts the polishing surface of the circuit board, and the PLC controller 9 then controls the first electric push rod 31 and the adjusting motor 611 to work synchronously for 2s, and the first electric push rod 31 pushes the polishing plate 33 downward for a distance again, and the adjusting motor 611 drives the adjusting screw 610 to rotate, and the trigger plate 612 is screwed together through the screw thread connection between the adjusting screw 610 and the trigger plate 612. 12 moves in the confirmation shell 61, and then drives the grinding plate 33 to move on the circuit board through the mobile push mechanism 2 to complete the grinding of the circuit board (the grinding path is the same as the movement detection path of the resistance rod 56). After completing one round of grinding, the PLC controller 9 controls the first electric push rod 31 and the adjustment motor 611 to work synchronously for 2s, and the grinding depth of the circuit board continues to be lowered until the trigger plate 612 presses on the in-place switch 69 during the movement of the trigger plate 612, indicating that the preset value of the grinding thickness has been reached. At this time, the PLC controller 9 controls the first electric push rod 31 and the adjustment motor 611 to stop moving, and completes the last grinding of the circuit board with the current downward movement. During grinding, the PLC controller 9 synchronously controls the action of the suction pump 44, and the suction pump 44 cooperates with the elastic suction pipe 42 to form a negative pressure suction force in the suction head 41, thereby quickly collecting the dust generated during the grinding of the circuit board by the grinding plate 33, and the dust is quickly intercepted and filtered by the filter component 43; During the grinding process, the reciprocating screw 23 keeps rotating, and one end of the reciprocating screw 23 drives the input end of the reduction gear box 71 to rotate, and then the output end of the reduction gear box 71 cooperates with the bevel gear assembly 74 to drive the first reciprocating screw 73 to rotate, and the first pressing plate 76 is driven to gradually move in the cleaning prompt shell 72 through the threaded sleeve action of the first reciprocating screw 73 and the first pressing plate 76, until the first pressing plate 76 presses on the cleaning prompt switch 75, indicating that the dust generated during the grinding has caused a large blockage to the filter assembly 43. At this time, the PLC controller 9 sends a wireless signal to the receiving terminal of the staff, reminding the staff to clean the filter assembly 43 to ensure the efficiency and quality of dust recovery. It is also noted that during the detection of the circuit board, the rotation of the reciprocating screw 23 will also drive the cleaning prompt mechanism 7 to act synchronously, but the detection work only once has little effect on the calculation accuracy of the cleaning prompt mechanism 7. The first reciprocating screw 73 drives the second reciprocating screw 82 to rotate synchronously through the reduction sprocket assembly 83, and the second pressing plate 85 is moved in the replacement prompt shell 81 through the threaded sleeve effect of the second reciprocating screw 82 and the second pressing plate 85, until the second pressing plate 85 presses on the replacement prompt switch 84, indicating that the wear degree of the grinding plate 33 has affected the grinding quality of the circuit board, and the staff is reminded in time to carry out corresponding processing and replacement of the grinding plate 33 to ensure the grinding quality; It is additionally noted that the cleaning prompt mechanism 7 and the replacement prompt mechanism 8 respectively use the transmission connection method of the first reciprocating screw 73 and the second reciprocating screw 82 to calculate whether the filter component 43 needs to be cleaned and whether the grinding plate 33 needs to be replaced. The overall calculation is the grinding amount of the circuit board, but compared with the traditional timing mechanism, the reciprocating screw 23 will only rotate during grinding, so that the cleaning prompt mechanism 7 and the replacement prompt mechanism 8 can perform calculation actions synchronously. When the grinding work stops, the cleaning prompt mechanism 7 and the replacement prompt mechanism 8 stop continuing the timing calculation. Compared with the traditional timing mechanism, the control is more convenient and accurate, and there is no need to add a separate detection mechanism for the grinding action, which saves costs and is easy to control.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grinding device for processing a circuit board of a vehicle lamp, comprising a base (1), characterized in that: Also includes: A movable pushing mechanism (2) is fixedly mounted on the upper end of the base (1); A pressurized grinding mechanism (3) is fixedly mounted on the front side of the moving end of the moving pushing mechanism (2); A dust suction mechanism (4) is fixedly mounted on the pressurized grinding mechanism (3) and the movable pushing mechanism (2); A deepest depression detection feedback mechanism (5) is fixedly mounted on the rear side of the mobile end of the mobile pushing mechanism (2); A grinding thickness confirmation mechanism (6) is fixedly mounted on the upper end of the base (1) and is electrically connected to the deepest depression detection feedback mechanism (5); A cleaning prompting mechanism (7) is fixedly mounted on the outer wall of the movable pushing mechanism (2) and is drivingly connected to the movable pushing mechanism (2); A replacement prompting mechanism (8) is fixedly mounted on the outer wall of the movable pushing mechanism (2) and is transmission-connected to the cleaning prompting mechanism (7); A PLC controller (9) is fixedly mounted on the upper end of the base (1) and is electrically connected to the moving pushing mechanism (2), the pressurized grinding mechanism (3), the dust suction mechanism (4), the deepest depression detection feedback mechanism (5), the grinding thickness confirmation mechanism (6), the cleaning prompt mechanism (7) and the replacement prompt mechanism (8).

2. A grinding device for processing a circuit board of a vehicle lamp according to claim 1, characterized in that: The mobile pushing mechanism (2) comprises two electric slide rails (21) symmetrically fixedly mounted on the upper end of the base (1); the upper ends of the inner slide blocks of the two electric slide rails (21) are fixedly mounted with a same U-shaped support plate (22); the inner side of the U-shaped support plate (22) is rotatably connected to a reciprocating screw rod (23); the outer wall of the U-shaped support plate (22) is fixedly mounted with a driving motor (24) for driving the reciprocating screw rod (23) to rotate; the rod wall of the reciprocating screw rod (23) is threadedly sleeved with a moving seat (25); the upper end of the moving seat (25) is fixedly mounted with a limiting slide block; and the lower end of the horizontal portion of the U-shaped support plate (22) is provided with a limiting slide groove that matches and slides with the limiting slide block.

3. A grinding device for processing a circuit board of a vehicle lamp according to claim 2, characterized in that: The pressurized grinding mechanism (3) comprises two first electric push rods (31) symmetrically fixedly mounted on the front side of the movable seat (25); the lower movable ends of the two first electric push rods (31) are fixedly connected to the same force equalizing frame (32); a grinding plate (33) is fixedly mounted on the lower end of the force equalizing frame (32); and the bottom ends of the grinding plate (33) on opposite sides are configured as arc structures.

4. A grinding device for processing a circuit board for a vehicle lamp according to claim 3, characterized in that: The dust suction mechanism (4) comprises two suction heads (41) symmetrically fixedly mounted on the outer wall of the force equalizing frame (32); the suction heads (41) are arranged on the side of the grinding plate (33); the rear ends of the two suction heads (41) are fixedly connected to a same elastic suction pipe (42); a filter assembly (43) and a suction pump (44) are mounted on the elastic suction pipe (42); the filter assembly (43) and the suction pump (44) are both fixedly mounted on the upper end of the U-shaped support plate (22).

5. The grinding device for processing a circuit board of a vehicle lamp according to claim 2, characterized in that: The deepest recess detection feedback mechanism (5) comprises two second electric push rods (51) symmetrically fixedly mounted on the rear side of the movable seat (25); the lower movable ends of the two second electric push rods (51) are fixedly connected to the same detection shell (52); a plurality of guide slide rods (53) arranged side by side are fixedly mounted on one side of the inner wall of the detection shell (52); the plurality of guide slide rods (53) are slidably sleeved with the same sliding plate (54) on the outside; a plurality of compensation springs (55) sleeved on the outside of the guide slide rods (53) are fixedly mounted on the lower end of the sliding plate (54) and the bottom of the inner wall of the detection shell (52); a resisting rod (56) is also fixedly mounted on the lower side of one end of the sliding plate (54); the lower end of the resisting rod (56) penetrates through the lower end of the detection shell (52); the rod wall of the resisting rod (56) is embedded with a transmission rack (57); the bottom of the inner wall of the detection shell (52) is fixedly mounted with a plurality of compensation springs (55) sleeved on the outside of the guide slide rods (53); The detection housing (52) is also fixedly provided with a speed increasing gear box (58), the input end of which is fixedly connected with a transmission gear (59) meshing with a transmission rack (57), the bottom of the inner wall of which is fixedly provided with a feedback housing (510) located on one side of the speed increasing gear box (58), the inner wall of which is rotatably connected with a transmission screw (511), one end of which passes through and extends out of the feedback housing (510) and is fixedly connected with the output end of the speed increasing gear box (58), the rod wall of which is threadedly sleeved with a transmission seat (512), the inner wall of which is also fixedly provided with a feedback resistor rod (513) arranged parallel to the transmission screw rod (511), and the lower end of which is fixedly provided with a feedback conductive contact piece (514) in electrical contact with the feedback resistor rod (513).

6. The grinding device for processing a circuit board for a vehicle lamp according to claim 1, characterized in that: The grinding thickness confirmation mechanism (6) comprises a confirmation shell (61), a plurality of limit slide bars (62) arranged side by side are fixedly installed on the lower side of the inner wall of the confirmation shell (61), a feedback plate (63) is slidably sleeved on the outside of the plurality of limit slide bars (62), a plurality of return springs (64) sleeved on the outside of the limit slide bars (62) are fixedly installed on the opposite side of the feedback plate (63) and the confirmation shell (61), a feedback permanent magnet plate (65) is fixedly installed on the side wall of the feedback plate (63), a feedback electromagnetic plate (66) arranged opposite to the feedback permanent magnet plate (65) is fixedly installed on the inner wall of the confirmation shell (61), and a plurality of resistance rods (67) arranged side by side are also fixedly installed at the middle position of the inner wall of the confirmation shell (61), and the plurality of resistance rods (67) is externally slidably sleeved with a force-bearing plate (68), the lower end of the force-bearing plate (68) is arranged on the rear side of the feedback plate (63), an in-position switch (69) is fixedly installed on the upper side wall of the force-bearing plate (68), an adjusting screw (610) is rotatably connected to the upper side of the inner wall of the confirmation shell (61), an adjusting motor (611) for driving the adjusting screw (610) to rotate is fixedly installed on the outer wall of the confirmation shell (61), a trigger plate (612) is threadedly sleeved on the rod wall of the adjusting screw (610), a non-conforming switch (613) corresponding to the position of the force-bearing plate (68) is also fixedly installed on the rear side of the inner wall of the confirmation shell (61), and an alarm (614) is fixedly installed on the outer wall of the confirmation shell (61).

7. A grinding device for processing a circuit board for a vehicle lamp according to claim 2, characterized in that: The cleaning prompt mechanism (7) comprises a reduction gear box (71) and a cleaning prompt housing (72) fixedly mounted on the outer wall of the U-shaped support plate (22); the input end of the reduction gear box (71) is fixedly connected to one end of the reciprocating screw rod (23); a first reciprocating screw rod (73) vertically arranged is rotatably connected in the cleaning prompt housing (72); the upper end of the first reciprocating screw rod (73) is transmission-connected to the output end of the reduction gear box (71) via a bevel gear assembly (74); a cleaning prompt switch (75) is fixedly mounted on one side of the inner wall of the cleaning prompt housing (72); and a first pressing plate (76) is threadedly sleeved on the rod wall of the first reciprocating screw rod (73).

8. The grinding device for processing a circuit board for a vehicle lamp according to claim 7, characterized in that: The replacement prompt mechanism (8) comprises a replacement prompt shell (81) fixedly mounted on the outer wall of the U-shaped support plate (22), a second reciprocating screw (82) being rotatably connected inside the replacement prompt shell (81), an upper end of the second reciprocating screw (82) and a lower end of the first reciprocating screw (73) being transmission-connected via a reduction sprocket assembly (83), a replacement prompt switch (84) being fixedly mounted on one side of the inner wall of the replacement prompt shell (81), and a second pressing plate (85) being threadedly sleeved on the rod wall of the second reciprocating screw (82).

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