Surface burr removing device adaptive to automobile PCB (printed circuit board) processing

Abstract

The invention relates to the technical field of PCB (printed circuit board) processing, in particular to a surface burr removing device adaptive to automobile PCB processing, which comprises a processing cabinet, a loading assembly, a feeding assembly, a positioning assembly and a sealing frame, third linear sliding rails are fixedly arranged on the front side and the rear side of the inner wall of the isolation frame, a sealing frame is arranged between the opposite sides of the two third linear sliding rails in a sliding mode, and a burr removing assembly used for removing burrs on the surface of the automobile PCB is arranged in the sealing frame in an up-down moving mode. Through multi-dimensional structural innovation and function cooperation, the machining quality and efficiency of automobile PCB burr removal are remarkably improved, precise positioning and automatic transfer of a to-be-machined PCB are achieved through the linkage design of the feeding assembly and the conveying assembly in the automatic feeding link, positioning deviation and pollution risks caused by manual operation are avoided, and the machining efficiency of the to-be-machined PCB is improved. Meanwhile, dust removal pretreatment of the movable blowing plate can effectively remove impurities on the surface of the plate, and the hidden danger of burr residues caused by dust attachment is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of PCB board processing, and specifically to a surface burr removal device adapted for automotive PCB processing. Background Art

[0002] In the industrial production of automotive PCB boards, the efficient removal of surface and hole wall burrs is the core link to ensure product quality. The current mainstream technology mainly relies on single mechanical processing. For example, traditional CNC milling machines mill through fixed tool paths, or are supplemented by manual wiping to clean tiny burrs. Although these methods can meet some basic processing requirements, when facing the increasingly complex structure of automotive PCB boards, significant process bottlenecks are exposed, especially in terms of automation level, processing accuracy, and multi-scenario adaptability, which are difficult to balance.

[0003] For burrs with large hardness differences, existing equipment needs to frequently change tools or switch processes. For example, after milling hard burrs, it is necessary to stop the machine to change the brush to clean soft debris, and the single switching takes more than 5 minutes. Moreover, there is no coordination between different processes, which is likely to cause secondary damage to the board. At the same time, the traditional vacuum adsorption device only provides static clamping and cannot adapt to local warping caused by the thickness tolerance of the board, resulting in vibration and abnormal noise during processing. At the same time, the cleaning of debris depends on the subsequent ultrasonic cleaning process and cannot be synchronized with milling, resulting in burr debris repeatedly adhering to the PCB surface and affecting the accuracy of subsequent detection. Summary of the Invention

[0004] The purpose of the present invention is to provide a surface burr removal device adapted for automotive PCB processing to solve the above-mentioned technical defects.

[0005] To achieve the above effects, the technical solution adopted by the present invention is: a surface burr removal device adapted for automotive PCB processing, comprising: A processing cabinet, on the left side inside the processing cabinet, there is a loading cabinet, and on the top of the processing cabinet, there is a fixed isolation frame. Below the left side of the processing cabinet, there is a rotatable feeding flap door, and on one side of the loading cabinet close to the feeding flap door, there is a feeding port; A loading component, on the front and rear sides of the inner wall of the loading cabinet, there are fixed first linear sliding rails, and between the opposite sides of the two first linear sliding rails, there is a loading component. The loading component includes a loading rack, and the front and rear sides of the loading rack are respectively slidably connected to the opposite sides of the two first linear sliding rails; A feeding component, on the top of the inner wall of the loading cabinet, there is a feeding component, and above the right side of the loading cabinet, there is a feeding port; Positioning component. A positioning component for positioning the processing of automotive PCB boards is provided inside the isolation frame on the right side of the top of the processing cabinet. The positioning component includes a fixed plate and a workpiece positioning table. The fixed plate is fixedly arranged on the right side of the top of the processing cabinet, and a workpiece positioning table is arranged above the fixed plate. Enclosure. Third linear slide rails are fixedly arranged on the front and rear sides of the inner wall of the isolation frame. An enclosure is slidably arranged between the opposite sides of the two third linear slide rails. A burr removal component for removing burrs on the surface of automotive PCB boards is vertically movably arranged inside the enclosure.

[0006] Preferably, a plurality of limit slots are arranged on the top of the loading rack. There are four limit slots arranged in the x-axis direction and two limit slots arranged in the z-axis direction. Telescopic limit blocks are slidably arranged inside the plurality of limit slots through electric sliders, and the top ends of the telescopic limit blocks are controlled to extend through built-in electric push rods.

[0007] Preferably, two movable air blowing plates are rotatably arranged in the middle of the loading cabinet. The two movable air blowing plates are respectively located on the left and right sides of the inner wall of the loading cabinet. A plurality of air blowing ports are arranged on one side of each of the two movable air blowing plates, and a blowing fan for supplying air to the inside of the two movable air blowing plates is fixedly arranged on the back of the processing cabinet.

[0008] Preferably, the feeding component includes second linear slide rails and a first feeding rack. The second linear slide rails are fixedly arranged on the front and rear sides of the top inner wall of the loading cabinet. A first feeding rack is slidably arranged between the opposite sides of the two second linear slide rails. A second feeding rack is slidably arranged at the bottom of the first feeding rack through a built-in electric slide table, and a third feeding rack is movably arranged inside the second feeding rack. Lifting servo electric cylinders are fixedly arranged around the bottom of the second feeding rack, and the bottom ends of the drive shafts of the four lifting servo electric cylinders are respectively fixedly connected to the four corners of the bottom of the third feeding rack.

[0009] Preferably, an industrial camera is fixedly arranged in the middle of the bottom of the third feeding rack, and a clamping screw rod is rotatably arranged inside the third feeding rack. Clamping plates are threadedly connected to both ends of the clamping screw rod. The tops of the two clamping plates are slidably connected to the bottom of the third feeding rack. Adsorption blocks are slidably arranged on the opposite sides of the two clamping plates through micro linear slide tables, and a plurality of rubber suction nozzles are arranged at the bottom of each of the two adsorption blocks.

[0010] Preferably, a rubber vibration isolation pad is fixedly arranged on the top of the fixed plate, and the top of the rubber vibration isolation pad is fixedly connected to the bottom of the workpiece positioning table. Four movable vacuum suction discs are slidably arranged around the top of the workpiece positioning table through servo linear slides. Piezoelectric ceramic transducers are fixedly arranged at the bottoms of the four movable vacuum suction discs. A fixed vacuum suction disc is fixedly arranged in the middle of the top of the workpiece positioning table. A plurality of suction holes are arranged on the tops of the fixed vacuum suction disc and the four movable vacuum suction discs, and the interiors of the plurality of suction holes are communicated with the output ends of negative pressure pumps built in the fixed vacuum suction disc and the movable vacuum suction discs respectively.

[0011] Preferably, the burr removal assembly includes a lifting frame, a mounting frame and a connecting frame. The lifting frame is slidably arranged up and down inside the closed frame, and two y-axis control servo electric cylinders for driving the lifting frame to move up and down are fixedly arranged on the top of the closed frame. The x-axis displacement driving frame is fixedly arranged at the bottom of the lifting frame. The z-axis displacement driving frame is slidably arranged at the bottom of the x-axis displacement driving frame, and the mounting frame is slidably arranged at the bottom of the z-axis displacement driving frame. The connecting frame is rotatably arranged inside the mounting frame, and a rotary servo motor for controlling the rotation of the connecting frame is fixedly arranged on one side of the mounting frame.

[0012] Preferably, a rotating frame is rotatably arranged at the bottom of the connecting frame, and a plurality of processing servo motors are movably arranged inside the rotating frame. The output ends of the plurality of processing servo motors are respectively installed with processing tool heads through connecting pieces. An adjusting servo motor is fixedly arranged inside the connecting frame, and one end of the output shaft of the adjusting servo motor is fixedly connected to the top of the rotating frame. A plurality of processing servo electric cylinders are fixedly arranged on the top of the rotating frame, and the driving ends of the plurality of processing servo electric cylinders are respectively fixedly connected to the tops of the plurality of processing servo motors.

[0013] Preferably, air guide plates are movably arranged on both sides inside the lifting frame, and adjusting servo electric cylinders for driving the two air guide plates to move up and down are fixedly arranged on both sides inside the lifting frame. A blowing pump and a material pumping pump are respectively fixedly arranged on both sides of the top of the isolation frame. One ends of the two blowing pumps and the material pumping pump are respectively communicated with the interiors of the two air guide plates through conduits. The left air guide plate is communicated with the interior of the blowing pump through a conduit. The burrs cleaned from the surface of the automotive PCB are blown to the right by the blowing port arranged at the bottom end of the left air guide plate. At the same time, the right air guide plate is communicated with the interior of the material pumping pump through a conduit. The burrs cleaned from the surface of the automotive PCB are extracted by the dust suction port arranged at the bottom end of the right air guide plate.

[0014] Preferably, the air guide plate on the left is connected to the inside of the air blowing pump through a conduit, and the burrs cleaned from the surface of the automotive PCB board are blown to the right by the air blowing port provided at the bottom of the air guide plate on the left. At the same time, the air guide plate on the right is connected to the inside of the material pumping pump through a conduit, and the burrs cleaned from the surface of the automotive PCB board are extracted by the dust suction port provided at the bottom of the air guide plate on the right.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Through multi-dimensional structural innovation and functional coordination, the processing quality and efficiency of burr removal from automotive PCB boards have been significantly improved. In the automated feeding process, the linkage design of the feeding component and the material feeding component realizes the precise positioning and automatic transfer of the PCB board to be processed, avoiding the positioning deviation and pollution risk caused by manual operation. At the same time, the dust removal pretreatment of the movable air blowing plate can effectively remove the impurities on the surface of the board, providing a clean substrate for subsequent processing and reducing the hidden danger of burr residue caused by dust adhesion.

[0016] 2. During the positioning and processing of the present invention, the vacuum adsorption and electromagnetic positioning of the positioning component are combined with the ultrasonic oscillation function of the piezoelectric ceramic transducer. It can not only ensure the stability of the board during milling through negative pressure adsorption, but also weaken the bonding force between the burrs and the substrate through high-frequency micro-vibrations, improving the cutting efficiency of the milling cutter and reducing tool wear. The multi-axis linkage mechanism and composite machining tool head design of the burr removal component can flexibly adjust the processing path and tool type according to the burr distribution data identified by the industrial camera, achieving precise removal of burrs at different positions and of different types. Especially when processing complex structures such as special-shaped holes and stepped surfaces, it can achieve full-fitting processing through angle deflection and trajectory planning, avoiding the blind area problem of traditional single-axis milling.

[0017] 3. The innovation of the present invention in the cleaning and processing link lies in integrating the air blowing and material pumping functions into the processing process. Through the synchronous movement of the air guide plate and the processing tool head, the chips generated during milling are removed in real time, preventing them from adhering again or blocking the channels. At the same time, the electrostatic neutralization effect of the ion wind can further improve the cleanliness of the board surface, reducing the interference in subsequent detection and assembly links. Generally speaking, through the integrated design of automated processes, multi-modal processing, and real-time cleaning, the device comprehensively improves the accuracy, efficiency, and reliability of burr removal from automotive PCB boards, meets the stringent requirements of in-vehicle electronics for high consistency and high reliability, and at the same time reduces the cost of manual intervention and the loss of process switching, showing significant technological advancement and engineering practicality. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the attached drawings required for the embodiments. It should be understood that the following attached drawings only show some embodiments of the present invention, so it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related attached drawings can also be obtained based on these attached drawings.

[0019] Figure 1 It is a schematic diagram of the structure of a surface burr removal device adapted to the processing of automotive PCBs according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the structures of a processing cabinet, an isolation rack, and a blowing fan according to an embodiment of the present invention; Figure 3 It is a schematic diagram of the internal structure of a loading cabinet according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the internal structure of an isolation rack according to an embodiment of the present invention; Figure 5 It is a schematic diagram of the structures of a first feeding rack and a third feeding rack according to an embodiment of the present invention; Figure 6 It is a schematic diagram of the structures of a first feeding rack, a second feeding rack, and a third feeding rack according to an embodiment of the present invention; Figure 7 It is a schematic diagram of the structures of a third feeding rack and a clamping plate according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the structures of a fixing plate, a workpiece positioning table, and an enclosing frame according to an embodiment of the present invention; Figure 9 It is a schematic diagram of the structure of a burr removal assembly according to an embodiment of the present invention; Figure 10 It is a schematic diagram of the structures of a connecting frame and a rotating frame according to an embodiment of the present invention.

[0020] In the figure, 1 is a processing cabinet; 2 is an isolation rack; 3 is a loading cabinet; 4 is a feeding flap; 5 is a loading assembly; 6 is a feeding assembly; 7 is a positioning assembly; 8 is a burr removal assembly; 9 is an enclosing rack; 10 is a first linear slide rail; 11 is a loading rack; 12 is a limiting groove; 13 is a telescopic limiting block; 14 is a movable air blowing plate; 15 is an air blowing fan; 16 is a feeding port; 17 is a second linear slide rail; 18 is a first feeding rack; 19 is a second feeding rack; 20 is a third feeding rack; 21 is a lifting servo electric cylinder; 22 is an industrial camera; 23 is a clamping screw rod; 24 is a clamping plate; 25 is an adsorption block; 26 is a fixing plate; 27 is a rubber vibration isolation pad; 28 is a movable vacuum adsorption plate; 29 is a piezoelectric ceramic transducer; 30 is a fixed vacuum adsorption plate; 31 is a lifting rack; 32 is a y-axis control servo electric cylinder; 33 is an x-axis displacement driving rack; 34 is a z-axis displacement driving rack; 35 is a mounting rack; 36 is a rotating servo motor; 37 is a connecting rack; 38 is an adjusting servo motor; 39 is a processing servo electric cylinder; 40 is a processing servo motor; 41 is a rotating rack; 42 is a processing tool bit; 43 is an air guiding plate; 44 is an adjusting servo electric cylinder; 45 is an air blowing pump; 46 is a material pumping pump; 47 is a workpiece positioning table; 48 is a third linear slide rail. Detailed implementation manners

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. Embodiment 1

[0022] Please refer to Figures 1 to 10 As shown, this embodiment discloses a surface burr removal device adapted for automotive PCB processing, including: A processing cabinet 1, a loading cabinet 3 is arranged on the left side inside the processing cabinet 1, and an isolation rack 2 is fixedly arranged on the top of the processing cabinet 1. A feeding flap 4 is rotatably arranged below the left side of the processing cabinet 1, and a feeding port is arranged on one side of the loading cabinet 3 close to the feeding flap 4; the loading cabinet 3 automatically feeds the automotive PCB board into the isolation rack 2. During the feeding process, no manual operation is required, and the feeding process is isolated from the outside by using the feeding flap 4, ensuring the protection effect during the PCB board feeding process.

[0023] A loading assembly 5, first linear slide rails 10 are fixedly arranged on the front and rear sides of the inner wall of the loading cabinet 3, and a loading assembly 5 is arranged between the opposite sides of the two first linear slide rails 10. The loading assembly 5 includes a loading rack 11, and the front and rear sides of the loading rack 11 are respectively slidably connected to the opposite sides of the two first linear slide rails 10; by placing the automotive PCB board to be processed above the loading rack 11, the first linear slide rail 10 drives the loading rack 11 to lift upward inside the loading cabinet 3, thereby realizing the automatic loading operation of the automotive PCB board.

[0024] Feeding component 6, a feeding component 6 is also provided at the top of the inner wall of the loading cabinet 3, and a feeding port 16 is further provided above the right side of the loading cabinet 3. The feeding component 6 includes a second linear slide rail 17 and a first feeding rack 18. The front and rear sides of the top of the inner wall of the loading cabinet 3 are fixedly provided with second linear slide rails 17, and a first feeding rack 18 is slidably arranged between the opposite sides of the two second linear slide rails 17; after using the loading component 5 to send the automotive PCB board to be processed below the feeding component 6, the feeding component 6 is used to transfer the automotive PCB board on the loading rack 11 from the inside of the loading cabinet 3 to the inside of the isolation rack 2 for further burr removal processing. At the same time, during the transfer process, image recognition is performed on the surface burrs of the automotive PCB board to be processed, and then burr removal processing is accurately performed according to the recognized burr distribution data.

[0025] Positioning component 7, a positioning component 7 for processing and positioning the automotive PCB board is provided inside the isolation rack 2 on the right side of the top of the processing cabinet 1. The positioning component 7 includes a fixing plate 26 and a workpiece positioning table 47. The fixing plate 26 is fixedly provided on the right side of the top of the processing cabinet 1, and a workpiece positioning table 47 is arranged above the fixing plate 26; the feeding component 6 is used to send the automotive PCB board to be processed to the upper end surface of the workpiece positioning table 47 for adsorption and positioning, so as to ensure the stability of the automotive PCB board during the burr removal processing.

[0026] Enclosure 9, the front and rear sides of the inner wall of the isolation rack 2 are fixedly provided with third linear slide rails 48, and an enclosure 9 is slidably arranged between the opposite sides of the two third linear slide rails 48. A burr removal component 8 for removing burrs on the surface of the automotive PCB board is also arranged up and down inside the enclosure 9. Embodiment 2

[0027] Specifically, as Figure 3 shown, a plurality of limiting grooves 12 are arranged on the top of the loading rack 11. Four limiting grooves 12 are arranged in the x-axis direction and two are arranged in the z-axis direction. Electric sliders are slidably arranged inside the plurality of limiting grooves 12, and telescopic limiting blocks 13 are arranged at the top ends of the telescopic limiting blocks 13, and the top ends of the telescopic limiting blocks 13 are extended through built-in electric push rods; after placing the automotive PCB board on the upper end surface of the loading rack 11, the telescopic limiting blocks 13 slidably arranged inside the plurality of limiting grooves 12 are used to approach the four sides of the automotive PCB board, and the plurality of telescopic limiting blocks 13 are used to center-position the automotive PCB board on the upper end surface of the loading rack 11, and then the first linear slide rail 10 is used to control the loading rack 11 to lift upward inside the loading cabinet 3.

[0028] Further, two movable blowing plates 14 are rotatably arranged in the middle of the feeding cabinet 3, and the two movable blowing plates 14 are respectively located on the left and right sides of the inner wall of the feeding cabinet 3. A plurality of air blowing ports are arranged on one side of each of the two movable blowing plates 14, and a blowing fan 15 for sending air into the two movable blowing plates 14 is fixedly arranged on the back of the processing cabinet 1; two motors built in the feeding cabinet 3 are used to control the two movable blowing plates 14 to flip inside the feeding cabinet 3. When the two movable blowing plates 14 are flipped to the horizontal state, the opposite sides of the two movable blowing plates 14 close the inside of the feeding cabinet 3. At this time, the blowing fan 15 sends air into the two movable blowing plates 14, and the plurality of air blowing ports arranged on one side of the two movable blowing plates 14 are used to blow air on the automotive PCB on the upper end surface of the feeding rack 11, so as to prevent external dust from entering the inside of the feeding cabinet 3 when the automotive PCB is placed on the feeding rack 11. Embodiment 3

[0029] Specifically, as Figures 5 to 7 shown, the bottom of the first feeding rack 18 is slidably provided with a second feeding rack 19 through a built-in electric slide, and a third feeding rack 20 is movably arranged inside the second feeding rack 19. Lifting servo electric cylinders 21 are fixedly arranged around the bottom of the second feeding rack 19, and the bottom ends of the drive shafts of the four lifting servo electric cylinders 21 are respectively fixedly connected to the four corners of the bottom of the third feeding rack 20; after the automotive PCB is sent to the lower part of the third feeding rack 20 through the feeding rack 11, the left and right sides of the automotive PCB are clamped and positioned by the structure at the bottom of the third feeding rack 20. Then, the first feeding rack 18 is driven to move towards one side of the positioning assembly 7 by the two second linear slide rails 17, and then the second feeding rack 19 is controlled to continue to move towards one side of the positioning assembly 7 by the electric slide arranged at the bottom of the first feeding rack 18, and the second feeding rack 19 is transferred to directly above the positioning assembly 7. Finally, the automotive PCB is placed on the top of the positioning assembly 7 for positioning.

[0030] Further, an industrial camera 22 is fixedly arranged in the middle of the bottom of the third feeding rack 20, and a clamping screw rod 23 is rotatably arranged inside the third feeding rack 20. Clamping plates 24 are threadedly connected to both ends of the clamping screw rod 23, and the tops of the two clamping plates 24 are slidably connected to the bottom of the third feeding rack 20. One end of the clamping screw rod 23 is rotationally driven by a built-in motor, and external threads with opposite helix directions are arranged on both sides of the surface of the clamping screw rod 23. When the clamping screw rod 23 is controlled to rotate clockwise, the two clamping plates 24 slide relatively along the surface of the clamping screw rod 23; adsorption blocks 25 are slidably arranged on the opposite sides of the two clamping plates 24 through micro linear slides, and a plurality of rubber suction nozzles are arranged at the bottoms of the two adsorption blocks 25; a micro air pump is arranged inside the adsorption block 25, and the inside of the micro air pump is communicated with the inside of the rubber suction nozzles, so as to generate negative pressure inside the rubber suction nozzles.

[0031] It should be noted that when clamping and positioning the automotive PCB board on the top of the loading rack 11, the driving end of the lifting servo electric cylinder 21 is used to control the third feeding rack 20 to move downward at the bottom of the second feeding rack 19, so that the two clamping plates 24 are respectively located on both sides of the automotive PCB board. The clamping screw rod 23 is used to control the two clamping plates 24 at both ends to clamp both sides of the automotive PCB board. At the same time, the suction blocks 25 on one side of the two clamping plates 24 are controlled to move downward, and a plurality of rubber suction nozzles at the bottom of the two suction blocks 25 are used to adsorb and position the top of the automotive PCB board, ensuring the stability of the automotive PCB board during the feeding process.

[0032] Specifically, as Figure 8 shown, a rubber vibration isolation pad 27 is fixedly arranged on the top of the fixing plate 26, and the top of the rubber vibration isolation pad 27 is fixedly connected to the bottom of the workpiece positioning table 47. Four movable vacuum suction discs 28 are slidably arranged on the top of the workpiece positioning table 47 through a servo linear slide, and piezoelectric ceramic transducers 29 are fixedly arranged at the bottom of the four movable vacuum suction discs 28. A fixed vacuum suction disc 30 is also fixedly arranged in the middle of the top of the workpiece positioning table 47. A plurality of suction holes are arranged on the tops of the fixed vacuum suction disc 30 and the four movable vacuum suction discs 28, and the interiors of the plurality of suction holes are communicated with the output ends of negative pressure pumps built inside the fixed vacuum suction disc 30 and the movable vacuum suction discs 28.

[0033] It should be noted that when processing and positioning the automotive PCB board, the positions of the four movable vacuum suction discs 28 on the top of the workpiece positioning table 47 are adjusted according to the size of the automotive PCB board. Then, the automotive PCB board is placed on the top of the workpiece positioning table 47, and the bottom of the automotive PCB board is vacuum-sucked by the four movable vacuum suction discs 28 and a fixed vacuum suction disc 30. At the same time, during processing, the piezoelectric ceramic transducers 29 arranged at the bottom of the movable vacuum suction discs 28 generate ultrasonic vibrations on the adsorbed automotive PCB board, which can effectively avoid the "slag hanging" phenomenon of traditional milling. Embodiment 4

[0034] Furthermore, as Figure 8 、 Figure 9 and Figure 10As shown, the burr removal component 8 includes a lifting frame 31, a mounting frame 35 and a connecting frame 37. The lifting frame 31 is slidably arranged up and down inside the closed frame 9, and two y-axis control servo electric cylinders 32 for driving the lifting frame 31 to move up and down are fixedly arranged at the top of the closed frame 9; the bottom of the lifting frame 31 is fixedly provided with an x-axis displacement driving frame 33, the bottom of the x-axis displacement driving frame 33 is slidably provided with a z-axis displacement driving frame 34, and the bottom of the z-axis displacement driving frame 34 is slidably provided with a mounting frame 35. The connecting frame 37 is rotatably arranged inside the mounting frame 35, and a rotary servo motor 36 for controlling the rotation of the connecting frame 37 is fixedly arranged on one side of the mounting frame 35. The bottom of the connecting frame 37 is also rotatably provided with a rotating frame 41, and a number of processing servo motors 40 are movably arranged inside the rotating frame 41. The output ends of the number of processing servo motors 40 are all installed with processing tool heads 42 through connecting pieces. Among them, the specifications and models of the number of processing tool heads 42 are all different, including but not limited to flat-bottom milling cutters, circular-arc edge milling cutters and small-diameter milling cutters; an adjusting servo motor 38 is fixedly arranged inside the connecting frame 37, and one end of the output shaft of the adjusting servo motor 38 is fixedly connected to the top of the rotating frame 41. A number of processing servo electric cylinders 39 are fixedly arranged at the top of the rotating frame 41, and the driving ends of the number of processing servo electric cylinders 39 are respectively fixedly connected to the tops of the number of processing servo motors 40; the processing tool head 42 is selected according to the burr type of the automotive PCB board. The driving end of the corresponding processing servo electric cylinder 39 is used to push down the selected processing tool head 42. Then, the driving ends of the two y-axis control servo electric cylinders 32 are used to control the lifting frame 31 to move down inside the closed frame 9. The mounting frame 35 is driven by the x-axis displacement driving frame 33 and the z-axis displacement driving frame 34 to move in the x-axis and z-axis directions above the automotive PCB board. At the same time, according to the burr removal angle, the output shaft of the rotary servo motor 36 is used to control the connecting frame 37 to rotate inside the mounting frame 35 to adjust the processing angle of the processing tool head 42, and the surface burrs of the automotive PCB board are automatically removed by using the selected processing tool head 42.

[0035] Further, in order to prevent the removed burrs from remaining on the surface of the automotive PCB board, air guide plates 43 are movably arranged on both sides inside the lifting frame 31, and adjusting servo cylinders 44 for driving the two air guide plates 43 to move up and down are fixedly arranged on both sides inside the lifting frame 31. Blowing pumps 45 and material extraction pumps 46 are respectively fixedly arranged on both sides of the top of the isolation frame 2, and one ends of the two blowing pumps 45 and the material extraction pump 46 are respectively communicated with the inside of the two air guide plates 43 through ducts; among them, the left air guide plate 43 is communicated with the inside of the blowing pump 45 through a duct, and the burrs cleaned from the surface of the automotive PCB board are blown to the right by the blowing port arranged at the bottom end of the left air guide plate 43. At the same time, the right air guide plate 43 is communicated with the inside of the material extraction pump 46 through a duct, and the burrs cleaned from the surface of the automotive PCB board are extracted by the dust suction port arranged at the bottom end of the right air guide plate 43, so as to ensure the cleanliness during the surface burr removal process of the automotive PCB board and the burr removal effect of the processing tool head 42 on the surface of the automotive PCB board. Embodiment 5

[0036] Specifically, this embodiment also discloses a working method of a surface burr removal device adapted for automotive PCB processing, including the following steps: Step 1: Place the automotive PCB board to be processed on the top of the loading rack 11, move along the X-axis and Z-axis through the telescopic limit block 13 in the limit slot 12, and complete the center positioning by fitting the edge of the PCB board. The loading rack 11 is lifted upward through the first linear slide rail 10 and enters the interior of the loading cabinet 3. Step 2: When placing the automotive PCB board to be processed on the top of the loading rack 11, control the two movable blowing plates 14 in the loading cabinet 3 to be driven by the motor to turn to the horizontal state to close the middle space of the loading cabinet. The blowing fan 15 sprays air flow to the surface of the PCB board through the blowing ports of the movable blowing plates 14 to remove dust and debris and avoid polluting the subsequent processing area. Step 3: After closing the feeding flap 4, control the two movable blowing plates 14 to reset, and the loading rack 11 continues to lift to the lower part of the feeding assembly 6. The third feeding rack 20 descends through the lifting servo cylinder 21 to make the clamping plates 24 and the adsorption blocks 25 close to the PCB board. The clamping screw rod 23 rotates to drive the two clamping plates 24 to clamp both sides of the PCB board. At the same time, the rubber suction nozzles of the adsorption blocks 25 generate negative pressure through the micro air pump to adsorb and fix the upper surface of the PCB board. The industrial camera 22 performs image recognition on the burrs on the surface of the PCB board, generates burr distribution data and transmits it to the control system. Step 4: The second linear slide rail 17 drives the first feeding rack 18 to move towards the positioning assembly 7 in the isolation rack 2. Subsequently, the electric slide table at the bottom of the first feeding rack 18 controls the further movement of the second feeding rack 19 to transport the PCB to directly above the workpiece positioning table 47. The lifting servo electric cylinder 21 descends to place the PCB on the workpiece positioning table 47. The movable vacuum suction disc 28 and the fixed vacuum suction disc 30 start vacuum suction through the negative pressure pump to fix the PCB. The piezoelectric ceramic transducer 29 starts to generate ultrasonic vibrations of 20 - 40 kHz to assist in discharging debris during subsequent milling and reducing cutting resistance; Step 5: The y-axis control servo electric cylinder 32 in the enclosure 9 drives the lifting rack 31 to descend, bringing the machining tool head 42 close to the surface of the PCB. The control system, based on the burr distribution data of the industrial camera 22, controls the mounting rack 35 to move in the X-axis and Z-axis through the x-axis displacement drive rack 33 and the z-axis displacement drive rack 34 to position to the burr area. The rotary servo motor 36 adjusts the angle of the connecting rack 37, and the adjusting servo motor 38 drives the rotary rack 41 to select the corresponding machining tool head 42. The machining servo electric cylinder 39 pushes the tool head out, and the machining servo motor 40 drives the tool head to rotate at high speed to perform milling in cooperation with the ultrasonic vibration. At the same time, the air guide plate 43 synchronously cleans the debris through the air blowing pump 45 and the material pumping pump 46; Step 6: After all burr areas are processed, the vacuum suction disc turns off the negative pressure. The feeding assembly 6 returns along the original path to grab the processed PCB and transfers it to the discharging area. The feeding flap 4 of the loading cabinet 3 opens, and Step 1 is repeated for the next batch of loading to achieve automated cyclic processing.

[0037] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0038] The present invention is not limited to the above optional embodiments, and anyone can obtain other various forms of products under the inspiration of the present invention. The above specific embodiments should not be construed as limiting the protection scope of the present invention. The protection scope of the present invention should be defined by the claims, and the specification can be used to interpret the claims.

Claims

1. A surface burr removal device adapted for automotive PCB processing, characterized in that, Including: A processing cabinet (1), a loading cabinet (3) is arranged on the left side inside the processing cabinet (1), and an isolation rack (2) is fixedly arranged on the top of the processing cabinet (1). A feeding flap door (4) is rotatably arranged below the left side of the processing cabinet (1), and a feeding port is arranged on one side of the loading cabinet (3) close to the feeding flap door (4); A loading component (5), first linear sliding rails (10) are fixedly arranged on the front and rear sides of the inner wall of the loading cabinet (3). A loading component (5) is arranged between the opposite sides of the two first linear sliding rails (10). The loading component (5) includes a loading rack (11), and the front and rear sides of the loading rack (11) are respectively slidably connected to the opposite sides of the two first linear sliding rails (10); A feeding component (6), a feeding component (6) is arranged on the top of the inner wall of the loading cabinet (3), and a feeding port (16) is arranged above the right side of the loading cabinet (3); A positioning component (7), a positioning component (7) for positioning the processing of automotive PCB boards is arranged inside the isolation rack (2) on the right side of the top of the processing cabinet (1). The positioning component (7) includes a fixing plate (26) and a workpiece positioning table (47). A fixing plate (26) is fixedly arranged on the right side of the top of the processing cabinet (1), and a workpiece positioning table (47) is arranged above the fixing plate (26); An enclosing rack (9), third linear sliding rails (48) are fixedly arranged on the front and rear sides of the inner wall of the isolation rack (2). An enclosing rack (9) is slidably arranged between the opposite sides of the two third linear sliding rails (48). A burr removal component (8) for removing burrs on the surface of automotive PCB boards is movably arranged up and down inside the enclosing rack (9).

2. The surface burr removal device adapted to automotive PCB processing according to claim 1, wherein, A plurality of limiting grooves (12) are arranged on the top of the loading rack (11). There are four limiting grooves (12) arranged in the x-axis direction and two in the z-axis direction. Telescopic limiting blocks (13) are slidably arranged inside the plurality of limiting grooves (12) through electric sliders, and the tops of the telescopic limiting blocks (13) are controlled to extend through built-in electric push rods.

3. A surface burr removal device adapted to automotive PCB processing according to claim 1, characterized in that, Two movable blowing plates (14) are rotatably arranged in the middle of the inner part of the loading cabinet (3). The two movable blowing plates (14) are respectively located on the left and right sides of the inner wall of the loading cabinet (3). A plurality of air blowing ports are arranged on one side of each of the two movable blowing plates (14), and an air blowing fan (15) for supplying air to the inside of the two movable blowing plates (14) is fixedly arranged on the back of the processing cabinet (1).

4. A surface burr removal device adapted for automotive PCB processing according to claim 1, characterized in that, The feeding component (6) includes a second linear slide rail (17) and a first feeding rack (18). The front and rear sides of the inner wall top of the loading cabinet (3) are both fixedly provided with second linear slide rails (17). A first feeding rack (18) is slidably arranged between the opposite sides of the two second linear slide rails (17). The bottom of the first feeding rack (18) is slidably provided with a second feeding rack (19) through an internal electric slide table, and a third feeding rack (20) is movably arranged inside the second feeding rack (19). The four peripheries of the bottom of the second feeding rack (19) are all fixedly provided with lifting servo electric cylinders (21), and the bottom ends of the driving shafts of the four lifting servo electric cylinders (21) are respectively fixedly connected to the four peripheries of the bottom of the third feeding rack (20).

5. The surface burr removal device adapted to automotive PCB processing according to claim 4, characterized in that, An industrial camera (22) is fixedly arranged in the middle of the bottom of the third feeding rack (20), and a clamping screw rod (23) is rotatably arranged inside the third feeding rack (20). Both ends of the clamping screw rod (23) are threadedly connected with clamping plates (24). The tops of the two clamping plates (24) are slidably connected to the bottom of the third feeding rack (20). Adsorption blocks (25) are slidably arranged on the opposite sides of the two clamping plates (24) through micro linear slide tables, and a plurality of rubber suction nozzles are arranged at the bottoms of the two adsorption blocks (25).

6. The surface burr removal device adapted to automotive PCB processing according to claim 1, characterized in that, A rubber vibration isolation pad (27) is fixedly arranged on the top of the fixing plate (26), and the top of the rubber vibration isolation pad (27) is fixedly connected to the bottom of the workpiece positioning table (47). The peripheries of the top of the workpiece positioning table (47) are slidably provided with movable vacuum suction discs (28) through servo linear slide tables. Piezoelectric ceramic transducers (29) are fixedly arranged at the bottoms of the four movable vacuum suction discs (28). A fixed vacuum suction disc (30) is fixedly arranged in the middle of the top of the workpiece positioning table (47). A plurality of suction holes are arranged at the tops of the fixed vacuum suction disc (30) and the four movable vacuum suction discs (28), and the interiors of the plurality of suction holes are communicated with the output ends of negative pressure pumps built inside the fixed vacuum suction disc (30) and the movable vacuum suction discs (28).

7. A surface burr removal device adapted for automotive PCB processing according to claim 1, characterized in that, The burr removal component (8) includes a lifting frame (31), a mounting frame (35) and a connecting frame (37). A lifting frame (31) is slidably arranged up and down inside the closed frame (9), and two y-axis control servo electric cylinders (32) for driving the lifting frame (31) to move up and down are fixedly arranged on the top of the closed frame (9); A bottom of the lifting frame (31) is fixedly provided with an x-axis displacement driving frame (33). A z-axis displacement driving frame (34) is slidably arranged at the bottom of the x-axis displacement driving frame (33), and a mounting frame (35) is slidably arranged at the bottom of the z-axis displacement driving frame (34). A connecting frame (37) is rotatably arranged inside the mounting frame (35), and a rotary servo motor (36) for controlling the rotation of the connecting frame (37) is fixedly arranged on one side of the mounting frame (35).

8. A surface burr removal device adapted for automotive PCB processing according to claim 7, characterized in that, A rotating frame (41) is rotatably arranged at the bottom of the connecting frame (37), and a number of processing servo motors (40) are movably arranged inside the rotating frame (41). The output ends of the number of processing servo motors (40) are each installed with a processing tool bit (42) through a connecting member. An adjusting servo motor (38) is fixedly arranged inside the connecting frame (37), and one end of the output shaft of the adjusting servo motor (38) is fixedly connected to the top of the rotating frame (41). A number of processing servo electric cylinders (39) are fixedly arranged at the top of the rotating frame (41), and the driving ends of the number of processing servo electric cylinders (39) are respectively fixedly connected to the tops of the number of processing servo motors (40).

9. The surface burr removal device adapted to the processing of automotive PCBs according to claim 8, characterized in that, Air guiding plates (43) are movably arranged on both sides inside the lifting frame (31), and adjusting servo electric cylinders (44) for driving the two air guiding plates (43) to move up and down are fixedly arranged on both sides inside the lifting frame (31). A blowing pump (45) and a material pumping pump (46) are respectively fixedly arranged on both sides of the top of the isolation frame (2). One ends of the two blowing pumps (45) and the material pumping pump (46) are respectively communicated with the inside of the two air guiding plates (43) through conduits.

10. A surface burr removal device adapted for automotive PCB processing according to claim 9, characterized in that, The air guiding plate (43) on the left side is communicated with the inside of the blowing pump (45) through a conduit, and the burrs cleaned from the surface of the automotive PCB board are blown to the right by the blowing port arranged at the bottom end of the air guiding plate (43) on the left side. At the same time, the air guiding plate (43) on the right side is communicated with the inside of the material pumping pump (46) through a conduit, and the burrs cleaned from the surface of the automotive PCB board are extracted by the dust suction port arranged at the bottom end of the air guiding plate (43) on the right side.

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