PCB drill point coarse and fine grinding intelligent production line

Abstract

The utility model relates to the technical field of PCB drill point production, in particular to an intelligent PCB drill point coarse and fine grinding production line which comprises a central controller, a raw material vertical warehouse, a material tray, an AGV composite robot, a coarse and fine grinding all-in-one machine and a coarse and fine grinding composite sampling inspection robot. The recognition mechanism recognizes unique identifiers of the raw material vertical warehouse, the material tray and the rough and fine grinding all-in-one machine, so that the AGV composite robot precisely recognizes the material tray and conveys the material tray between the raw material vertical warehouse and the rough and fine grinding all-in-one machine, and manual operation errors are avoided. The AGV composite robot feeds back the processing information of rough and fine grinding processing of the PCB drill point, so that the rough and fine grinding processing of the PCB drill point is digitized, dynamic and real-time, the rough and fine grinding processing precision of the PCB drill point is controlled, and the rough and fine grinding processing precision and the qualified rate of the PCB drill point are ensured. The rough and fine grinding composite spot check robot detects and checks the PCB drill point and feeds back detection data to the central controller, and the central controller calculates and analyzes machining parameters of the rough and fine grinding all-in-one machine and then issues a compensatory adjustment instruction to the rough and fine grinding all-in-one machine.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB drill bit production, in particular to an intelligent production line for coarse and fine grinding of PCB drill bits. Background Art

[0002] A PCB drill bit is a tool used to drill holes in printed circuit boards (PCBs), typically made of high-hardness tungsten steel. During PCB manufacturing, the drill bit is mounted on a drilling machine and drills the PCB according to the designed hole location and size. Drill bits come in a variety of shapes and sizes, and choosing the right drill bit for your specific drilling requirements can improve both accuracy and efficiency.

[0003] The manufacturing of PCB drill pins requires multiple steps, including cutting, grinding, and polishing. Grinding, in particular, requires transporting the PCB drill pin to multiple processing stations. Manual operation alone is prone to errors and makes it difficult to ensure consistent precision and pass rates for both rough and fine grinding of PCB drill pins. Therefore, improvements are necessary. Utility Model Content

[0004] The purpose of this utility model is to address the deficiencies of the existing technology and provide an intelligent production line for PCB drill bit roughing and fine grinding. By using an identification mechanism to identify the unique identifiers of the raw material warehouse, the material tray, and the roughing and fine grinding machine, the AGV composite robot can accurately identify the material tray and transport it between the raw material warehouse and the roughing and fine grinding machine, thus avoiding manual operation errors. The AGV composite robot can also provide real-time feedback on the processing information of the PCB drill bit roughing and fine grinding process, making the PCB drill bit roughing and fine grinding process digital, dynamic, and real-time, thereby comprehensively controlling the PCB drill bit roughing and fine grinding process accuracy to ensure the consistency and pass rate of the PCB drill bit roughing and fine grinding process accuracy.

[0005] The coarse and fine grinding composite sampling robot is used to inspect and sample PCB drill bits and feed back the inspection data to the central controller, which facilitates the central controller to make compensatory adjustments to the processing parameters of the coarse and fine grinding machine, ensuring the timeliness and accuracy of automatic compensation and playing a role in ensuring the consistency of processing accuracy.

[0006] To achieve the above objectives, the utility model provides an intelligent production line for PCB drill bit coarse and fine grinding, including a central controller, a raw material warehouse, multiple material trays, an AGV compound robot, a coarse and fine grinding all-in-one machine, and a coarse and fine grinding compound inspection robot; the central controller is respectively communicated with the raw material warehouse, the AGV compound robot, the coarse and fine grinding all-in-one machine, and the coarse and fine grinding compound inspection robot;

[0007] The raw material warehouse, material tray, coarse and fine grinding machine, and coarse and fine grinding composite inspection robot are all provided with unique identification; the material tray is used to carry the PCB drill bit to be processed and the finished fine grinding PCB drill bit, and the AGV composite robot and coarse and fine grinding composite inspection robot are both provided with an identification mechanism for identifying the unique identification;

[0008] The material tray is used to carry PCB drill pins to be processed or finished fine-ground PCB drill pins. The central controller controls the AGV compound robot to identify the unique identifiers of the raw material vertical warehouse, material tray, and coarse and fine grinding machine through the identification mechanism, and transports the material tray between the raw material vertical warehouse and the coarse and fine grinding machine to complete the processing of the PCB drill pins to be processed into fine-ground PCB drill pins.

[0009] The coarse and fine grinding machine is equipped with an inspection disk, which is used to carry the sampled PCB drill needles. The central controller controls the coarse and fine grinding composite inspection robot to move to the coarse and fine grinding machine and grab the inspection disk. The coarse and fine grinding composite inspection robot inspects the sampled PCB drill needles in the inspection disk and feeds back the inspection data of the sampled PCB drill needles to the central controller.

[0010] Preferably, the raw material vertical warehouse includes a warehouse rack, a first conveyor belt group and a second conveyor belt group;

[0011] The first conveyor belt group and the second conveyor belt group are stacked on the storage rack, and the second conveyor belt group is arranged above the first conveyor belt group. The first conveyor belt group and the second conveyor belt group are both provided with multiple conveyor belts, and the conveyor belts are provided with a feeding end and a picking end. The feeding end is provided with a lighting lamp, and the picking end is provided with a material sensor. The central controller is communicated with the conveyor belts, the lighting lamp and the material sensor respectively.

[0012] Preferably, the material tray includes a first material plate, a second material plate and a third material plate stacked with each other at intervals, the first material plate is provided with a first solid material hole, the second material plate is provided with a second solid material hole, the third material plate is provided with a third solid material hole, and the first solid material hole, the second solid material hole and the third solid material hole are perpendicular to each other.

[0013] Preferably, the AGV composite robot includes an AGV trolley, a collaborative robot and a tray fixture.

[0014] The collaborative robot is fixed to the AGV cart, the tray fixture is fixed to the collaborative robot; and the identification mechanism is fixed to the collaborative robot.

[0015] Preferably, the coarse and fine grinding integrated machine includes a loading platform, a material transfer robot, a loading robot, a rotating robot, a coarse grinding station, a fine grinding station and a UC station;

[0016] The loading platform, the rough grinding station, the fine grinding station and the UC station are respectively arranged around the rotating manipulator, and the material transfer manipulator and the loading manipulator are respectively arranged on the loading platform.

[0017] Preferably, the loading platform is provided with a resistance block, a clamping block and a resistance actuator, the resistance block is provided at one end of the loading platform, the clamping block is provided at the other end of the loading platform and is rotatably connected to the loading platform;

[0018] The material tray is placed on the loading platform and one end thereof abuts against the abutment block, and the abutment actuator drives the clamping block to rotate and abut against the material tray.

[0019] Preferably, the rotating manipulator includes a dividing plate, a plurality of linear conveying drives and a plurality of clamping manipulators;

[0020] The plurality of linear conveying drivers are spaced apart and distributed along the center of the indexing plate, and the clamping manipulators and the linear conveying drivers are arranged in a one-to-one correspondence.

[0021] Preferably, the coarse grinding station, the fine grinding station and the UC station all include a coarse and fine grinding table, a positioning fixture, a rear support rod, a first rotating holding wheel, a first holding wheel driver, a second rotating holding wheel, a second holding wheel swing arm, a second holding wheel swing arm driver, a grinding disc, a grinding disc rotating driver and a grinding disc sliding driver;

[0022] The coarse and fine grinding table is arranged on one side of the rotating manipulator, the positioning fixture is fixed to the coarse and fine grinding table, and the rear support rod is arranged on the rear side of the positioning fixture;

[0023] The first rotating pressing wheel is provided on one side of the positioning fixture and is used to contact the side of the PCB drill needle, and the first pressing wheel driver drives the first rotating pressing wheel to rotate;

[0024] The second holding wheel swing arm is hinged to the rough and fine grinding table and is arranged on the other side of the positioning jig. The second rotating holding wheel is rotatably arranged on the second holding wheel swing arm and is used to abut against the side of the PCB drill needle. The second holding wheel swing arm driver drives the second holding wheel swing arm to rotate so that the second rotating holding wheel approaches or moves away from the positioning jig.

[0025] The grinding disc is arranged on one side of the second holding wheel swing arm, the grinding disc rotation driver drives the grinding disc to rotate, and the grinding disc sliding driver drives the grinding disc to approach or move away from the positioning fixture.

[0026] Preferably, the rough grinding station and the fine grinding station are both provided with a first friction block, a first front swing arm and a first swing arm driver;

[0027] The first front swing arm is hinged to the rough and fine grinding table, the first friction block is fixed to the first front swing arm and disposed at the front end of the positioning jig, and the first swing arm driver drives the first front swing arm to rotate so as to move the first friction block closer to or away from the positioning jig;

[0028] The UC station is provided with a second friction block, a third friction block, a second front swing arm, a third front swing arm, a first stretching reset member, a second stretching reset member and a second swing arm driver;

[0029] The second friction block is fixed to the second front swing arm, the third friction block is fixed to the third front swing arm, and the second friction block and the third friction block are arranged opposite to each other;

[0030] The second front swing arm and the third front swing arm are respectively hinged to the coarse and fine grinding table, the second front swing arm and the third front swing arm are hinged, the first stretching and restoring member is connected between the coarse and fine grinding table and the second front swing arm, and the second stretching and restoring member is connected between the second front swing arm and the third front swing arm;

[0031] The second swing arm driver drives the second front swing arm to rotate so that the second friction block and the third friction block move closer to or farther away from each other, thereby moving the second friction block and the third friction block closer to or farther away from each other.

[0032] Preferably, the coarse and fine grinding composite sampling inspection robot includes a coarse and fine grinding inspection table, an inspection conveyor belt, a first inspection fixed fixture, a second inspection fixed fixture, an inspection manipulator, a blower, a fixture push-pull driver, a third rotating holding wheel, a third holding wheel rotating driver, a third holding wheel holding driver, an outer diameter detection mechanism, and an inspection camera;

[0033] The coarse and fine grinding inspection table is integrated with an AGV and a manipulator, and the coarse and fine grinding composite inspection robot is autonomously moved to the coarse and fine grinding integrated machine through the AGV and the manipulator, and the inspection disk is grabbed and placed in the coarse and fine grinding composite inspection robot; the inspection conveyor belt, the first inspection fixed jig, and the second inspection fixed jig are respectively arranged on the coarse and fine grinding inspection table, and the inspection manipulator is arranged directly above the inspection conveyor belt, the first inspection fixed jig, and the second inspection fixed jig; the hair dryer is arranged above one side of the first inspection fixed jig, and the jig push-pull driver drives the first inspection fixed jig to move closer to or away from the air outlet of the hair dryer;

[0034] The third rotating pressing wheel is provided on one side of the second detection fixing fixture, the third pressing wheel rotation driver drives the third rotating pressing wheel to rotate, and the third pressing wheel holding driver drives the third pressing wheel rotation driver to move closer to or away from the second detection fixing fixture;

[0035] The outer diameter detection mechanism is arranged above the second detection fixture and is used to detect the outer diameter of the PCB drill needle. The detection camera is arranged on the other side of the second detection fixture and is used to detect the appearance of the PCB drill needle.

[0036] The beneficial effects of the present invention are as follows: the present invention uses an identification mechanism to identify the unique identifiers of the raw material warehouse, the material tray, and the coarse and fine grinding machine, which facilitates the AGV composite robot to accurately identify the material tray and transport it between the raw material warehouse and the coarse and fine grinding machine, thus avoiding manual operation errors. It also facilitates the AGV composite robot to provide real-time feedback on processing information during the coarse and fine grinding of the PCB drill needle, making the coarse and fine grinding of the PCB drill needle digital, dynamic, and real-time, thereby comprehensively controlling the coarse and fine grinding accuracy of the PCB drill needle to ensure the consistency and qualified rate of the coarse and fine grinding accuracy of the PCB drill needle. It is also convenient to check the processing progress of the PCB drill needle. The central controller monitors the equipment status data and equipment production data to determine whether the equipment needs maintenance and ensure the timeliness of maintenance.

[0037] The coarse and fine grinding composite sampling robot is used to inspect and sample PCB drill bits and feed the inspection data back to the central controller, which facilitates the central controller to make compensatory adjustments to the processing parameters of the coarse and fine grinding machine by comparing the inspection data with the standard value and calculating the compensation value, thereby ensuring the timeliness and accuracy of automatic compensation and playing a role in ensuring the consistency of processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the top structure of the utility model.

[0039] Figure 2 It is a structural diagram of the raw material vertical warehouse of the utility model.

[0040] Figure 3 It is a structural schematic diagram of the material tray of the utility model.

[0041] Figure 4 This is a schematic diagram of the structure of the AGV composite robot of the utility model.

[0042] Figure 5 This is a structural diagram of the coarse and fine grinding all-in-one machine of the utility model.

[0043] Figure 6 It is a structural schematic diagram of the loading platform of the utility model.

[0044] Figure 7 This is a structural diagram of the rotary manipulator of the utility model.

[0045] Figure 8 This is a structural diagram of the rough grinding station of the utility model.

[0046] Figure 9 This is a structural diagram of the UC workstation of the utility model.

[0047] Figure 10 This is a structural diagram of the coarse and fine grinding composite sampling robot of the utility model.

[0048] Reference numerals include:

[0049] 1. Central controller;

[0050] 2. Raw material vertical warehouse; 21. Warehouse rack; 22. First conveyor belt group; 23. Second conveyor belt group; 24. Conveyor belt; 241. Feed end; 242. Reclaim end; 243. Light; 244. Material sensor;

[0051] 3. Material tray; 31. First material plate; 311. First solid material hole; 32. Second material plate; 321. Second solid material hole; 33. Third material plate; 331. Third solid material hole;

[0052] 4. AGV composite robot; 41. AGV car; 42. Collaborative robot; 43. Tray fixture;

[0053] 5. Coarse and fine grinding machine; 51. Loading table; 511. Resistance block; 512. Clamping block; 513. Resistance actuator; 52. Material transfer robot; 53. Loading robot; 54. Rotating robot; 541. Indexing plate; 542. Linear conveying drive; 543. Clamping robot; 55. Coarse grinding station; 56. Fine grinding station; 57. UC station; 5001. Coarse and fine grinding table; 5002. Positioning fixture; 5003. Rear resistance rod; 5004. First rotating holding wheel; 5005. First holding wheel driver; 5006. Second Rotating holding wheel; 5007, second holding wheel swing arm; 5008, second holding wheel swing arm driver; 5009, grinding disc; 5010, grinding disc rotation driver; 5011, grinding disc sliding driver; 5012, first friction block; 5013, first front swing arm; 5014, first swing arm driver; 5015, second friction block; 5016, third friction block; 5017, second front swing arm; 5018, third front swing arm; 5019, first stretching reset member; 5020, second stretching reset member; 5021, second swing arm driver;

[0054] 6. Rough and fine grinding composite sampling robot; 601. Rough and fine grinding inspection table; 602. Inspection conveyor belt; 603. First inspection fixed fixture; 604. Second inspection fixed fixture; 605. Inspection robot; 606. Hair dryer; 607. Fixture push-pull driver; 608. Third rotating holding wheel; 609. Third holding wheel rotating driver; 610. Third holding wheel holding driver; 611. Outer diameter inspection mechanism; 612. Inspection camera. DETAILED DESCRIPTION

[0055] The present invention is described in detail below with reference to the accompanying drawings.

[0056] like Figures 1 to 10 As shown, the utility model is an intelligent production line for PCB drill bit rough and fine grinding, including a central controller 1, a raw material warehouse 2, multiple material trays 3, an AGV compound robot 4, a rough and fine grinding all-in-one machine 5 and a rough and fine grinding compound sampling robot 6. The central controller 1 is a central control system MES manufacturing execution system, which has inventory management, warehouse location management, production task planning, automatic production scheduling according to order delivery date and equipment production status, production scheduling, real-time capture and storage of equipment status data and equipment production data, analysis and calculation, and generation of database functions of various data reports.

[0057] The central controller 1 is respectively communicated with the raw material warehouse 2, the AGV compound robot 4, the coarse and fine grinding integrated machine 5 and the coarse and fine grinding composite sampling robot 6, so that the central controller 1 controls the raw material warehouse 2, the AGV compound robot 4, the coarse and fine grinding integrated machine 5 and the coarse and fine grinding composite sampling robot 6.

[0058] The raw material storage 2, material tray 3, coarse and fine grinding machine 5, and coarse and fine grinding combined inspection robot 6 are all equipped with unique identifiers. The material tray 3 is used to carry PCB drill bits to be processed and finished PCB drill bits. The AGV compound robot 4 and the coarse and fine grinding combined inspection robot 6 are both equipped with identification mechanisms for identifying the unique identifiers. The identification mechanisms and unique identifiers work together to facilitate feedback of processing information and inspection information during the coarse and fine grinding process of the PCB drill bits to the central controller 1.

[0059] The unique identifier can be a QR code and / or an RFID chip. The identification mechanism includes a visual recognition camera and / or an RFID sensor to enable the identification mechanism to identify the unique identifiers of the raw material warehouse 2, the material tray 3, the coarse and fine grinding machine 5, and the coarse and fine grinding composite inspection robot 6.

[0060] On the one hand, the unique identifiers of the raw material warehouse 2, material tray 3, and coarse-fine grinding machine 5 are identified by the identification mechanism, allowing the AGV composite robot 4 to accurately identify the material tray 3 and transport it between the raw material warehouse 2 and the coarse-fine grinding machine 5, thus preventing manual operation errors. On the other hand, the AGV composite robot 4, the coarse-fine grinding machine 5, and the coarse-fine grinding composite sampling robot 6 provide real-time feedback on processing information and inspection data during the coarse-fine grinding of PCB drill needles, making the coarse-fine grinding of PCB drill needles digital, dynamic, and real-time. This allows for comprehensive control of the coarse-fine grinding accuracy of PCB drill needles, ensuring the consistency and pass rate of the coarse-fine grinding accuracy of PCB drill needles, and facilitating the review of PCB drill needle processing progress. The central controller 1 monitors equipment status data and equipment production data to determine whether the equipment requires maintenance and ensure timely maintenance.

[0061] During use, the material tray 3 carrying the raw materials to be processed is placed in the raw material vertical warehouse 2, and the central controller 1 issues a production instruction to the AGV compound robot 4 and the coarse and fine grinding machine 5. The production instruction includes the unique identification of the raw material vertical warehouse 2, the material tray 3 and the coarse and fine grinding machine 5. The AGV compound robot 4 receives the production instruction and moves to the raw material vertical warehouse 2. The AGV compound robot 4 uses the identification mechanism to identify that the unique identification of the raw material vertical warehouse 2 and the material tray 3 is consistent with the content of the production instruction, and then feeds back to the central controller 1 and takes away the material tray 3 carrying the PCB drill pin to be processed. The AGV compound robot 4 transports the material tray 3 carrying the PCB drill pin to be processed to the coarse and fine grinding machine 5. The AGV compound robot 4 again uses the identification mechanism to identify that the unique identification of the coarse and fine grinding machine 5 is consistent with the content of the production instruction, and then feeds back to the central controller 1 and places the material tray 3 carrying the PCB drill pin to be processed into the coarse and fine grinding machine 5. The coarse and fine grinding machine 5 grinds the PCB drill pin to be processed, and the finished fine-ground PCB drill pin is placed in the material tray 3, so that the PCB drill pin to be processed is completed into a fine-ground PCB drill pin.

[0062] The coarse-fine grinding machine 5 is equipped with an inspection tray for carrying sampled PCB drill bits. Specifically, after the coarse-fine grinding machine 5 reaches the preset processing volume, it places four finished fine-grinded PCB drill bits on the inspection tray to form the sampled PCB drill bits. The central controller 1 issues an inspection instruction to the coarse-fine grinding composite inspection robot 6. The coarse-fine grinding composite inspection robot 6 receives the inspection instruction and moves to the coarse-fine grinding machine 5. The coarse-fine grinding composite inspection robot 6 uses an identification mechanism to identify the coarse-fine grinding machine 5's unique identifier and confirms that it matches the inspection instruction. The robot then feeds back the inspection tray to the central controller 1 and grabs the inspection tray. The coarse-fine grinding composite inspection robot 6 then inspects the sampled PCB drill bits in the inspection tray. After the inspection is complete, the robot feeds back the inspection data of the sampled PCB drill bits to the central controller 1, allowing the central controller 1 to make compensatory adjustments to the processing parameters of the coarse-fine grinding machine 5 by comparing the inspection data with standard values ​​and calculating compensation values.

[0063] The raw material vertical warehouse 2 of this embodiment includes a warehouse frame 21, a first conveyor belt group 22 and a second conveyor belt group 23. The first conveyor belt group 22 and the second conveyor belt group 23 are stacked on the warehouse frame 21, and specifically, the second conveyor belt group 23 is arranged above the first conveyor belt group 22.

[0064] Both the first and second conveyor belt groups 22 and 23 are equipped with multiple conveyor belts 24, each with synchronous pulleys. The conveyor belts 24 are provided with a feed end 241 and a reclaim end 242. Trays 3 carrying PCB drill bits to be processed are placed onto the conveyor belts 24 from the feed end 241. The conveyor belts 24 then transport the trays 3 from the feed end 241 to the reclaim end 242, allowing the AGV robot 4 to retrieve the trays 3 from the reclaim end 242 of the vertical raw material warehouse 2.

[0065] The feeding end 241 is provided with an illumination lamp 243 , which is used to illuminate the material tray 3 carrying the PCB drill needle to be processed, so as to facilitate placement of the material tray 3 on the feeding end 241 of the conveyor belt 24 .

[0066] The material pickup end 242 is provided with a material sensor 244. The central controller 1 is in communication with the conveyor belt 24, the lighting 243, and the material sensor 244, respectively, to facilitate the central controller 1 to control the operation of the conveyor belt 24, the lighting 243, and the material sensor 244. The material sensor 244 is a touch switch. When the material tray 3 at the material pickup end 242 is removed by the AGV compound robot 4, the material sensor 244 no longer senses the material tray 3. The conveyor belt 24 transports the material tray 3 to the material pickup end 242, causing the material tray 3 to contact the material sensor 244. The material sensor 244 then feeds back to the conveyor belt 24, causing the conveyor belt 24 to stop conveying, so that the material tray 3 remains placed at the material pickup end 242 of the conveyor belt 24, making it easier for the AGV compound robot 4 to retrieve the material tray 3.

[0067] The material tray 3 of this embodiment includes a first material plate 31, a second material plate 32, and a third material plate 33, which are stacked and spaced apart from each other. The first material plate 31 is provided with a first fixing hole 311, the second material plate 32 is provided with a second fixing hole 321, and the third material plate 33 is provided with a third fixing hole 331. The first fixing hole 311, the second fixing hole 321, and the third fixing hole 331 are perpendicular to each other, and the PCB drill needle is fixed through the first fixing hole 311, the second fixing hole 321, and the third fixing hole 331. Specifically, the aperture of the first fixing hole 311 is greater than the aperture of the second fixing hole 321, and the aperture of the third fixing hole 331, so that the PCB drill needle is fixed to the first fixing hole 311, the second fixing hole 321, and the third fixing hole 331.

[0068] The AGV compound robot 4 of this embodiment includes an AGV vehicle 41 , a collaborative robot 42 and a tray clamp 43 .

[0069] Collaborative robot 42 is fixed to AGV 41 and is driven by AGV 41. A tray clamp 43 is fixed to collaborative robot 42, allowing collaborative robot 42 to drive tray clamp 43 to grasp tray 3. A recognition mechanism is fixed to collaborative robot 42 so that it can identify tray 3 as collaborative robot 42 approaches. This facilitates real-time feedback from the recognition mechanism on the processing progress of the PCB drill bit carried on tray 3.

[0070] The coarse and fine grinding machine 5 of this embodiment includes a loading platform 51, a material transfer robot 52, a material loading robot 53, a rotating robot 54, a coarse grinding station 55, a fine grinding station 56 and a UC station 57. The material transfer robot 52 is a truss robot, and the material loading robot 53 is a rotating claw robot.

[0071] The loading platform 51, rough grinding station 55, fine grinding station 56 and UC station 57 are respectively arranged around the rotating robot 54, and the material transfer robot 52 and loading robot 53 are respectively arranged on the loading platform 51. The loading platform 51 is used to place the material tray 3 carrying the PCB drill needle to be processed.

[0072] During use, the material transfer robot 52 grips a PCB drill pin to be processed, carried on the material tray 3, and places it on the loading robot 53. The loading robot 53 then transfers the PCB drill pin to the rotating robot 54. The rotating robot 54 then transports the PCB drill pin to the rough grinding station 55, the fine grinding station 56, and the UC station 57 for processing. The PCB drill pin undergoes rough grinding in the rough grinding station 55, fine grinding in the fine grinding station 56, and UC processing in the UC station 57, completing the grinding process and becoming a finely ground PCB drill pin. The finished finely ground PCB drill pin is then placed on the material tray 3 by the robot 54, the loading robot 53, and the material transfer robot 52.

[0073] UC is the abbreviation of Under Cut, which means cutting depth, indicating that the cutting depth of this part is a little deeper. This is a common term in the industry.

[0074] When the rough and fine grinding machine 5 reaches the preset processing volume, the material transfer robot 52 clamps 4 finished fine-grinding PCB drill needles carried on the material tray 3 and places them in the inspection tray, so that the finished fine-grinding PCB drill needles are placed in the inspection tray to become sampling PCB drill needles.

[0075] The loading platform 51 of this embodiment is provided with a resistance block 511, a clamping block 512 and a resistance actuator 513. The resistance block 511 is provided at one end of the loading platform 51, and the clamping block 512 is provided at the other end of the loading platform 51 and is rotatably connected to the loading platform 51.

[0076] The material tray 3 is placed on the loading platform 51 and one end is against the resistance block 511. The resistance actuator 513 drives the clamping block 512 to rotate and resist the material tray 3, so that the two ends of the material tray 3 resist the resistance block 511 and the clamping block 512 respectively, thereby fixing the material tray 3 on the loading platform 51.

[0077] The rotary manipulator 54 of this embodiment includes a dividing plate 541, a plurality of linear conveying drivers 542, and a plurality of gripping manipulators 543;

[0078] Multiple linear conveyor drivers 542 are spaced along the center of the indexing plate 541, and each linear conveyor driver 542 corresponds to the clamping robot 543. During operation, the indexing plate 541 drives the linear conveyor drivers 542 to rotate, which in turn drives the clamping robot 543 to extend and retract, transporting the PCB drill bit from the loading robot 53 to the rough grinding station 55, fine grinding station 56, and UC station 57 for processing.

[0079] The rough grinding station 55, fine grinding station 56, and UC station 57 of this embodiment each include a rough and fine grinding table 5001, a positioning fixture 5002, a rear support rod 5003, a first rotating holding wheel 5004, a first holding wheel driver 5005, a second rotating holding wheel 5006, a second holding wheel swing arm 5007, a second holding wheel swing arm driver 5008, a grinding disc 5009, a grinding disc rotation driver 5010, and a grinding disc sliding driver 5011. The first holding wheel driver 5005 and the grinding disc rotation driver 5010 are motors, while the second holding wheel swing arm driver 5008 and the grinding disc sliding driver 5011 are pneumatic cylinders, hydraulic cylinders, electric cylinders, or linear slide modules.

[0080] The coarse and fine grinding table 5001 is set on one side of the rotating robot 54, and the positioning fixture 5002 is fixed to the coarse and fine grinding table 5001. The positioning fixture 5002 abuts against the side of the PCB drill needle, which facilitates the restriction of the PCB drill needle.

[0081] The rear support rod 5003 is set at the rear side of the positioning fixture 5002. The rear support rod 5003 contacts the rear end of the PCB drill needle to limit the backward movement of the PCB drill needle.

[0082] The first rotating pressing wheel 5004 is disposed on one side of the positioning fixture 5002 and is used to contact the side of the PCB drill needle.

[0083] The second holding wheel swing arm 5007 is hinged to the coarse and fine grinding processing table 5001 and is arranged on the other side of the positioning fixture 5002. The second rotating holding wheel 5006 is rotatably set on the second holding wheel swing arm 5007 and is used to interfere with the side of the PCB drill needle, so that the second rotating holding wheel 5006 is arranged opposite to the first rotating holding wheel 5004. The positioning fixture 5002, the first rotating holding wheel 5004 and the second rotating holding wheel 5006 are surrounded on the side of the PCB drill needle, which facilitates the confinement of the PCB drill needle to the coarse and fine grinding processing table 5001.

[0084] The second holding wheel swing arm driver 5008 drives the second holding wheel swing arm 5007 to rotate so that the second rotating holding wheel 5006 approaches or moves away from the positioning jig 5002. When the second holding wheel swing arm driver 5008 drives the second holding wheel swing arm 5007 to rotate so that the second rotating holding wheel 5006 approaches the positioning jig 5002, the side of the PCB drill needle is forced to contact the positioning jig 5002, the first rotating holding wheel 5004 and the second rotating holding wheel 5006 respectively. The first holding wheel driver 5005 drives the first rotating holding wheel 5004 to rotate. The first rotating holding wheel 5004 rubs against the side of the PCB drill needle, and the PCB drill needle rotates between the positioning jig 5002, the first rotating holding wheel 5004 and the second rotating holding wheel 5006, thereby facilitating the grinding process of the PCB drill needle.

[0085] When the second holding wheel swing arm driver 5008 drives the second holding wheel swing arm 5007 to rotate so that the second rotating holding wheel 5006 moves away from the positioning jig 5002, the PCB drill needle is separated from the second rotating holding wheel 5006, and the PCB drill needle is carried between the positioning jig 5002 and the first rotating holding wheel 5004, which facilitates the rotating manipulator 54 to transport the PCB drill needle.

[0086] The grinding disc 5009 is arranged on one side of the second holding wheel swing arm 5007, the grinding disc rotation driver 5010 drives the grinding disc 5009 to rotate, and the grinding disc sliding driver 5011 drives the grinding disc 5009 to approach or move away from the positioning jig 5002. The grinding disc sliding driver 5011 drives the grinding disc 5009 to approach the positioning jig 5002, so that the grinding disc 5009 contacts the PCB drill needle confined between the positioning jig 5002, the first rotating holding wheel 5004 and the second rotating holding wheel 5006. The grinding disc rotation driver 5010 drives the grinding disc 5009 to rotate, so that the PCB drill needle can be ground.

[0087] In this embodiment, both the rough grinding station 55 and the fine grinding station 56 are equipped with a first friction block 5012, a first front swing arm 5013, and a first swing arm actuator 5014. The first swing arm actuator 5014 can be a pneumatic cylinder, hydraulic cylinder, electric cylinder, or linear slide module. The first front swing arm 5013 is hingedly connected to the rough and fine grinding table 5001. The first friction block 5012 is fixed to the first front swing arm 5013 and positioned at the front end of the positioning jig 5002. The first swing arm actuator 5014 drives the first front swing arm 5013 to rotate, thereby moving the first friction block 5012 toward or away from the positioning jig 5002.

[0088] When the first swing arm driver 5014 rotates the first front swing arm 5013 to move the first friction block 5012 closer to the positioning jig 5002, the first friction block 5012 contacts the PCB drill pin, which is trapped between the positioning jig 5002, the first rotating holding wheel 5004, and the second rotating holding wheel 5006, thereby grinding the PCB drill pin. When the first swing arm driver 5014 rotates the first front swing arm 5013 to move the first friction block 5012 closer to the positioning jig 5002 and away from the positioning jig 5002, the rotating manipulator 54 facilitates the transport of the PCB drill pin.

[0089] The UC station 57 is provided with a second friction block 5015, a third friction block 5016, a second front swing arm 5017, a third front swing arm 5018, a first stretching reset member 5019, a second stretching reset member 5020 and a second swing arm driver 5021. The first stretching reset member 5019 and the second stretching reset member 5020 are both stretching springs, and the second swing arm driver 5021 is a pneumatic cylinder, an oil cylinder, an electric cylinder or a linear slide module.

[0090] The second friction block 5015 is fixed to the second front swing arm 5017, and the third friction block 5016 is fixed to the third front swing arm 5018. The second friction block 5015 and the third friction block 5016 are arranged opposite to each other.

[0091] The second front swing arm 5017 and the third front swing arm 5018 are respectively hinged to the coarse and fine grinding processing table 5001, the second front swing arm 5017 and the third front swing arm 5018 are hinged, the first stretching and restoring member 5019 is connected between the coarse and fine grinding processing table 5001 and the second front swing arm 5017, and the second stretching and restoring member 5020 is connected between the second front swing arm 5017 and the third front swing arm 5018, so that the second front swing arm 5017 and the third front swing arm 5018 are linked.

[0092] The second swing arm driver 5021 drives the second front swing arm 5017 to rotate, so that the second friction block 5015 and the third friction block 5016 move closer to or farther away from each other, thereby moving the second friction block 5015 and the third friction block 5016 closer to or farther away from each other.

[0093] When the second swing arm driver 5021 drives the second front swing arm 5017 to rotate so that the second friction block 5015 and the third friction block 5016 approach each other, the second friction block 5015 and the third friction block 5016 contact the surface of the PCB drill needle and perform UC processing on the PCB drill needle.

[0094] When the second swing arm driver 5021 drives the second front swing arm 5017 to rotate so that the second friction block 5015 and the third friction block 5016 move away from each other, the second friction block 5015 and the third friction block 5016 move away from the PCB drill needle, making it easier for the rotating manipulator 54 to transport the PCB drill needle.

[0095] The coarse and fine grinding composite sampling inspection robot 6 of this embodiment includes a coarse and fine grinding inspection table 601, an inspection conveyor belt 602, a first inspection fixed fixture 603, a second inspection fixed fixture 604, an inspection robot 605, a hair dryer 606, a fixture push-pull driver 607, a third rotating pressure holding wheel 608, a third pressure holding wheel rotation driver 609, a third pressure holding wheel holding driver 610, an outer diameter detection mechanism 611 and an inspection camera 612. The inspection conveyor belt 602 is a synchronous pulley conveyor belt, the inspection robot 605 is a truss robot, the hair dryer 606 is a hot air hair dryer, the third pressure holding wheel rotation driver 609 is a motor, the third pressure holding wheel holding driver 610 is an air cylinder, an oil cylinder, an electric cylinder or a linear slide module, the outer diameter detection mechanism 611 is an outer diameter detection machine, and the inspection camera 612 is an industrial camera.

[0096] The coarse and fine grinding inspection station 601 integrates an automated guided vehicle (AGV) and a manipulator. These AGV and manipulator enable the coarse and fine grinding combined sampling inspection robot 6 to autonomously move to the coarse and fine grinding machine 5, where it grabs the inspection disk and places it inside the coarse and fine grinding combined sampling inspection robot 6. An inspection conveyor belt 602, a first inspection fixture 603, and a second inspection fixture 604 are each mounted on the coarse and fine grinding inspection station 601. The inspection disk is transported along the inspection conveyor belt 602, and the inspection drill pins for sampling PCBs are transported along with the inspection conveyor belt 602. The first inspection fixture 603 secures the drill pins for sampling, facilitating the removal of foreign matter from their surfaces. The second inspection fixture 604 secures the drill pins for sampling, facilitating inspection of their appearance and outer diameter.

[0097] The inspection robot 605 is set directly above the inspection conveyor belt 602, the first inspection fixture 603 and the second inspection fixture 604, so as to facilitate the transportation of the sampled PCB drill needle between the inspection conveyor belt 602, the first inspection fixture 603 and the second inspection fixture 604.

[0098] The hair dryer 606 is disposed above one side of the first detection fixture 603 , and the fixture push-pull driver 607 drives the first detection fixture 603 to move closer to or away from the air outlet of the hair dryer 606 .

[0099] During operation, the coarse-fine grinding composite sampling inspection robot 6 autonomously moves to the coarse-fine grinding machine 5, grabs the inspection disc, and places it on the inspection conveyor belt 602. The inspection drill pins for sampling PCBs are then transported along the inspection conveyor belt 602. The inspection robot 605 then transports the inspection drill pins from the inspection conveyor belt 602 to the first inspection fixture 603. The fixture push-pull driver 607 drives the first inspection fixture 603 toward the blower 606, which blows hot air to remove foreign matter from the surface of the inspection drill pins. The fixture push-pull driver 607 drives the first inspection fixture 603 away from the blower 606, facilitating the inspection robot 605 to transport the decontaminated PCB drill pins to the second inspection fixture 604.

[0100] The third rotating pressing wheel 608 is set on one side of the second detection fixing fixture 604, the third pressing wheel rotation driver 609 drives the third rotating pressing wheel 608 to rotate, and the third pressing wheel holding driver 610 drives the third pressing wheel rotation driver 609 to move closer to or away from the second detection fixing fixture 604.

[0101] The outer diameter detection mechanism 611 is set above the second detection fixture 604 and is used to detect the outer diameter of the PCB drill pin. The detection camera 612 is set on the other side of the second detection fixture 604 and is used to detect the appearance of the PCB drill pin.

[0102] During use, the inspection robot 605 transports the sampled PCB drill needle with surface foreign matter removed to the second inspection fixture 604, and the third holding wheel holding driver 610 drives the third holding wheel rotation driver 609 to approach the second inspection fixture 604, so that the third rotating holding wheel 608 rests on the surface of the PCB drill needle in the second inspection fixture 604, and the third holding wheel rotation driver 609 drives the third rotating holding wheel 608 to rotate, so that the sampled PCB drill needle rotates along the second inspection fixture 604, and the outer diameter detection mechanism 611 detects the outer diameter of the rotating sampled PCB drill needle and feeds back to the central controller 1, and the detection camera 612 obtains the appearance image of the sampled PCB drill needle and feeds back to the central controller 1, so as to facilitate the evaluation of the sampled PCB drill needle and adjust the working parameters of the rough and fine grinding machine 5, so as to make compensatory adjustments to the processing parameters of the rough and fine grinding machine 5 to ensure the rough and fine grinding processing accuracy and qualified rate of the PCB drill needle.

[0103] After the inspection is completed, the third holding wheel rotation driver 609 stops, and the third holding wheel holding driver 610 drives the third holding wheel rotation driver 609 away from the second inspection fixture 604, so that the inspection robot 605 can transport the sampled PCB drill needles back to the inspection conveyor belt 602, so as to facilitate the classification of the sampled PCB drill needles.

[0104] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there may be changes in the specific implementation methods and application scope. The content of this specification should not be understood as limiting the present invention.

Claims

1. An intelligent production line for rough and fine grinding of PCB drill needles, comprising a central controller (1), characterized in that: It also includes a raw material vertical warehouse (2), a plurality of material trays (3), an AGV compound robot (4), a coarse and fine grinding all-in-one machine (5), and a coarse and fine grinding compound sampling inspection robot (6); the central controller (1) is respectively connected to the raw material vertical warehouse (2), the AGV compound robot (4), the coarse and fine grinding all-in-one machine (5), and the coarse and fine grinding compound sampling inspection robot (6); The raw material vertical warehouse (2), the material tray (3), the coarse and fine grinding integrated machine (5), and the coarse and fine grinding composite sampling inspection robot (6) are all provided with unique identifications; the material tray (3) is used to carry the PCB drill needles to be processed and the processed fine grinding PCB drill needles, and the AGV composite robot (4) and the coarse and fine grinding composite sampling inspection robot (6) are both provided with identification mechanisms for identifying the unique identifications; The material tray (3) is used to carry the PCB drill needle to be processed or the finished fine-grinded PCB drill needle. The central controller (1) controls the AGV composite robot (4) to identify the unique identification of the raw material vertical warehouse (2), the material tray (3), and the coarse and fine grinding all-in-one machine (5) through the identification mechanism, and transports the material tray (3) between the raw material vertical warehouse (2) and the coarse and fine grinding all-in-one machine (5) so that the PCB drill needle to be processed is processed into a fine-grinded PCB drill needle. The coarse and fine grinding machine (5) is provided with an inspection disk, which is used to carry the sampled PCB drill needles. The central controller (1) controls the coarse and fine grinding composite inspection robot (6) to move to the coarse and fine grinding machine (5) and grab the inspection disk. The coarse and fine grinding composite inspection robot (6) inspects the sampled PCB drill needles in the inspection disk. The coarse and fine grinding composite inspection robot (6) feeds back the inspection data of the sampled PCB drill needles to the central controller (1).

2. The intelligent production line for rough and fine grinding of PCB drill bits according to claim 1, characterized in that: The raw material vertical warehouse (2) comprises a warehouse frame (21), a first conveyor belt group (22) and a second conveyor belt group (23); The first conveyor belt group (22) and the second conveyor belt group (23) are stacked on the storage rack (21), and the second conveyor belt group (23) is arranged above the first conveyor belt group (22). The first conveyor belt group (22) and the second conveyor belt group (23) are both provided with a plurality of conveyor belts (24), and the conveyor belts (24) are provided with a feeding end (241) and a material taking end (242). The feeding end (241) is provided with a lighting lamp (243), and the material taking end (242) is provided with a material sensor (244). The central controller (1) is respectively connected to the conveyor belt (24), the lighting lamp (243) and the material sensor (244).

3. The intelligent production line for rough and fine grinding of PCB drill needles according to claim 1, characterized in that: The material tray (3) comprises a first material plate (31), a second material plate (32) and a third material plate (33) which are stacked and spaced apart from each other; the first material plate (31) is provided with a first solid material hole (311); the second material plate (32) is provided with a second solid material hole (321); the third material plate (33) is provided with a third solid material hole (331); the first solid material hole (311), the second solid material hole (321) and the third solid material hole (331) are perpendicular to each other.

4. The intelligent production line for rough and fine grinding of PCB drill bits according to claim 1, characterized in that: The AGV composite robot (4) includes an AGV trolley (41), a collaborative robot (42) and a tray fixture (43). The collaborative robot (42) is fixed to the AGV trolley (41), the tray clamp (43) is fixed to the collaborative robot (42), and the identification mechanism is fixed to the collaborative robot (42).

5. The intelligent production line for rough and fine grinding of PCB drill needles according to claim 1, characterized in that: The coarse and fine grinding integrated machine (5) comprises a loading platform (51), a material transfer manipulator (52), a loading manipulator (53), a rotating manipulator (54), a coarse grinding station (55), a fine grinding station (56) and a UC station (57); The loading platform (51), the rough grinding station (55), the fine grinding station (56) and the UC station (57) are respectively arranged around the rotating manipulator (54), and the material transfer manipulator (52) and the loading manipulator (53) are respectively arranged on the loading platform (51).

6. The intelligent production line for rough and fine grinding of PCB drill bits according to claim 5, characterized in that: The loading platform (51) is provided with a resistance block (511), a clamping block (512) and a resistance actuator (513), wherein the resistance block (511) is provided at one end of the loading platform (51), and the clamping block (512) is provided at the other end of the loading platform (51) and is rotatably connected to the loading platform (51); The material tray (3) is placed on the loading platform (51) and one end thereof abuts against the abutment block (511), and the abutment actuator (513) drives the clamping block (512) to rotate and abut against the material tray (3).

7. The intelligent production line for rough and fine grinding of PCB drill bits according to claim 5, characterized in that: The rotating manipulator (54) includes a dividing plate (541), a plurality of linear conveying drivers (542), and a plurality of clamping manipulators (543); The plurality of linear conveying drivers (542) are spaced apart and distributed along the center of the indexing plate (541), and the clamping manipulator (543) and the linear conveying drivers (542) are arranged in a one-to-one correspondence.

8. The intelligent production line for rough and fine grinding of PCB drill bits according to claim 5, characterized in that: The coarse grinding station (55), the fine grinding station (56) and the UC station (57) all include a coarse and fine grinding table (5001), a positioning fixture (5002), a rear support rod (5003), a first rotating holding wheel (5004), a first holding wheel driver (5005), a second rotating holding wheel (5006), a second holding wheel swing arm (5007), a second holding wheel swing arm driver (5008), a grinding disc (5009), a grinding disc rotating driver (5010) and a grinding disc sliding driver (5011); The coarse and fine grinding table (5001) is arranged on one side of the rotating manipulator (54), the positioning fixture (5002) is fixed to the coarse and fine grinding table (5001), and the rear support rod (5003) is arranged on the rear side of the positioning fixture (5002); The first rotating pressing wheel (5004) is provided on one side of the positioning fixture (5002) and is used to contact the side of the PCB drill needle, and the first pressing wheel driver (5005) drives the first rotating pressing wheel (5004) to rotate; The second holding wheel swing arm (5007) is hinged to the rough and fine grinding table (5001) and is arranged on the other side of the positioning fixture (5002); the second rotating holding wheel (5006) is rotatably arranged on the second holding wheel swing arm (5007) and is used to abut against the side of the PCB drill needle; the second holding wheel swing arm driver (5008) drives the second holding wheel swing arm (5007) to rotate, so that the second rotating holding wheel (5006) approaches or moves away from the positioning fixture (5002); The grinding disc (5009) is arranged on one side of the second holding wheel swing arm (5007), the grinding disc rotation driver (5010) drives the grinding disc (5009) to rotate, and the grinding disc sliding driver (5011) drives the grinding disc (5009) to approach or move away from the positioning fixture (5002).

9. The intelligent production line for rough and fine grinding of PCB drill bits according to claim 8, characterized in that: The rough grinding station (55) and the fine grinding station (56) are both provided with a first friction block (5012), a first front swing arm (5013), and a first swing arm driver (5014); The first front swing arm (5013) is hinged to the rough and fine grinding table (5001); the first friction block (5012) is fixed to the first front swing arm (5013) and arranged at the front end of the positioning jig (5002); the first swing arm driver (5014) drives the first front swing arm (5013) to rotate so as to move the first friction block (5012) closer to or farther away from the positioning jig (5002); The UC station (57) is provided with a second friction block (5015), a third friction block (5016), a second front swing arm (5017), a third front swing arm (5018), a first stretching and restoring member (5019), a second stretching and restoring member (5020), and a second swing arm driver (5021); The second friction block (5015) is fixed to the second front swing arm (5017), and the third friction block (5016) is fixed to the third front swing arm (5018), and the second friction block (5015) and the third friction block (5016) are arranged opposite to each other; The second front swing arm (5017) and the third front swing arm (5018) are respectively hinged to the coarse and fine grinding table (5001), the second front swing arm (5017) and the third front swing arm (5018) are hinged, the first stretching and restoring member (5019) is connected between the coarse and fine grinding table (5001) and the second front swing arm (5017), and the second stretching and restoring member (5020) is connected between the second front swing arm (5017) and the third front swing arm (5018); The second swing arm driver (5021) drives the second front swing arm (5017) to rotate so that the second friction block (5015) and the third friction block (5016) move closer to or farther away from each other, thereby moving the second friction block (5015) and the third friction block (5016) closer to or farther away from each other.

10. The intelligent production line for rough and fine grinding of PCB drill bits according to claim 1, characterized in that: The coarse and fine grinding composite sampling inspection robot (6) comprises a coarse and fine grinding inspection platform (601), an inspection conveyor belt (602), a first inspection fixed jig (603), a second inspection fixed jig (604), an inspection manipulator (605), a blower (606), a jig push-pull driver (607), a third rotating holding wheel (608), a third holding wheel rotating driver (609), a third holding wheel holding driver (610), an outer diameter inspection mechanism (611), and an inspection camera (612); The coarse and fine grinding inspection table (601) is integrated with an AGV and a manipulator, and the coarse and fine grinding composite sampling inspection robot (6) is autonomously moved to the coarse and fine grinding integrated machine (5) and grabs the inspection disk and places it in the coarse and fine grinding composite sampling inspection robot (6) through the AGV and the manipulator; the inspection conveyor belt (602), the first inspection fixed jig (603) and the second inspection fixed jig (604) are respectively arranged on the coarse and fine grinding inspection table (601), and the inspection manipulator (605) is arranged directly above the inspection conveyor belt (602), the first inspection fixed jig (603) and the second inspection fixed jig (604); the hair dryer (606) is arranged above one side of the first inspection fixed jig (603), and the jig push-pull driver (607) drives the first inspection fixed jig (603) to approach or move away from the air outlet of the hair dryer (606); The third rotating pressing wheel (608) is arranged on one side of the second detection fixing jig (604), the third pressing wheel rotation driver (609) drives the third rotating pressing wheel (608) to rotate, and the third pressing wheel holding driver (610) drives the third pressing wheel rotation driver (609) to move closer to or away from the second detection fixing jig (604); The outer diameter detection mechanism (611) is arranged above the second detection fixture (604) and is used to detect the outer diameter of the PCB drill needle. The detection camera (612) is arranged on the other side of the second detection fixture (604) and is used to detect the appearance of the PCB drill needle.

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