PCB board final process processing equipment and positioning system thereof

Abstract

This invention proposes a final processing equipment for PCB boards, including a machine tool, a cutting device, and a control console. The control console is located on one side of the machine tool and is electrically connected to both the machine tool and the cutting device. The machine tool has a working arm, and the cutting device is fixedly suspended on the working arm. The cutting device includes a fixed frame, a cutting head, a first camera, and a distance sensor. The fixed frame is fixedly connected to the working arm. A first driving device can rotate according to the position of the tool-setting boss image transmitted by the first camera, driving the processing platform to slide directly below the first camera to complete the tool setting of the cutting head. This invention uses a first camera, LED beads, and a tool-setting boss to assist the cutting head in tool setting, which facilitates quick positioning and tool setting before cutting PCB board leads. It is beneficial for quickly and accurately cutting leads on double-sided PCB boards. The use of negative pressure clamping to clamp and fix the PCB board with leads to be cut allows workers to quickly clamp the PCB board, saving clamping time.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment technology, and in particular to a PCB board final processing equipment and its positioning system. Background Technology

[0002] PCB (Printed Circuit Board) is an important electronic component. It serves as the support for electronic components and the carrier for their electrical connections.

[0003] In the production process of welding machines, PCB boards are an important component. After electronic components are fixed on the PCB board, it is necessary to cut off the excess pins on the electronic components. In the existing production technology, the pins are usually cut manually with pliers. However, due to the large number of pins, cutting the pins with pliers is time-consuming, labor-intensive and inefficient.

[0004] To save cutting time, most companies use a saw blade to cut the pins uniformly. Patent number CN210754862U uses a saw blade to cut the pins, but this type of cutting method is only suitable for PCBs where electronic components are concentrated on one side of the PCB. If electronic components are inserted on both sides of the PCB, the uniform cutting effect is not good (the pins are too long), which is not conducive to efficient cutting of PCB pins.

[0005] Therefore, it is necessary to propose a final processing equipment and positioning system for PCB boards to solve the problem of the difficulty in automatically and quickly cutting double-sided pins of PCB boards. Summary of the Invention

[0006] To address the aforementioned problems, this invention proposes a PCB board final processing equipment and its positioning system to solve the problem of the difficulty in automatically and quickly cutting double-sided pins on PCB boards.

[0007] This invention is achieved through the following technical solution:

[0008] This invention proposes a final processing equipment for PCB boards, comprising a machine tool, a cutting device, and a control console. The control console is located on one side of the machine tool and electrically connected to both the machine tool and the cutting device. The machine tool has a working arm, and the cutting device is fixedly suspended on the working arm. The cutting device includes a mounting frame, a cutting head, a first camera, and a distance sensor. The mounting frame is fixedly connected to the working arm. The cutting head, the first camera, and the distance sensor are all fixedly connected within the mounting frame and face the machine tool. The line formed by the first camera and the cutting head is perpendicular to the line formed by the cutting head and the distance sensor. The machine tool includes a first drive device and a processing platform. The processing platform is located below the cutting device and adjacent to the machine tool. The first drive device is fixed to the machine tool, and the lead screw on the rotating shaft is threadedly connected to the machining platform. The machining platform is equipped with a tool setter, which has a tool setter boss and an LED. The LED is fixedly connected to the center of the tool setter boss and faces upward. The tool setter boss contains a main control module electrically connected to the LED. The tool setter boss has multiple stacked truncated cones with progressively decreasing diameters. The cutting head, the first camera, the distance sensor, and the LED are all electrically connected to the control console. The first drive device can rotate according to the image of the tool setter boss transmitted by the first camera and the flashing position of the LED to drive the machining platform to slide directly below the first camera to complete the tool set of the cutting head.

[0009] Furthermore, a reflective surface is provided on one side of the tool setting device, and the reflective surface faces upward.

[0010] Furthermore, the cutting head includes a second driving device, a hydraulic cylinder, a first cutting head, and a spring sheet. A fixed column is provided on the rotating shaft of the second driving device. The hydraulic cylinder is fixedly connected to one side of the fixed column and is parallel to the horizontal plane. The first cutting head is fixedly connected to one end of the fixed column. An avoidance groove is provided on the fixed column. The spring sheet is fixedly connected to one side of the fixed column and partially covers the avoidance groove. A pressing plate is provided on the push rod of the hydraulic cylinder. The pressing plate abuts against the surface of the spring sheet. A second cutting head is provided at one end of the spring sheet. The second cutting head is aligned with the first cutting head.

[0011] Furthermore, the cutting head includes a second camera, which is fixedly connected to the fixed post and partially housed in the clearance groove. A cutting opening is provided between the first cutting head and the second cutting head, and the second camera faces the cutting opening.

[0012] Furthermore, the processing platform includes a placement plate, a clamping device, and a button. The clamping device is movably placed on the upper surface of the placement plate, and the button is fixedly connected to the placement plate and close to the clamping device. The clamping device is located on one side of the tool setter. The final PCB board processing equipment includes an air extraction device. The air extraction device is connected to the clamping device through an external flexible connection pipe and is electrically connected to the button. Pressing the button can control the air extraction device to extract air so that the clamping device clamps the PCB board with the pins to be cut.

[0013] Furthermore, the clamping device includes a support assembly and a knob rod. The placement plate is provided with a slide rail and a fixed boss. The two support assemblies are slidably connected to the slide rail and are symmetrically arranged and respectively connected to the air extraction device. The knob rod passes through the fixed boss and the two support assemblies in sequence, is rotatably connected to the fixed boss, and is threadedly connected to the two support assemblies respectively.

[0014] Furthermore, the support assembly includes a sliding member and a clamping member. The sliding member is provided with a first suction chamber and a first connection port. The suction device is connected to the sliding member through the first connection port and communicates with the first suction chamber. The clamping member is provided with a sliding column, which is movably housed in the first suction chamber. One end of the sliding column is provided with a first sealing plate, which is tightly connected to the cavity wall of the first suction chamber. A clamping groove for clamping an external PCB board is provided between the sliding member and the clamping member.

[0015] Furthermore, the air extraction device includes a housing, a third driving device, a negative pressure shell, a pull rod, and a pressure sensor. The housing has a fixing groove and a second connection port. The second connection port is connected to the clamping device through an external flexible connecting pipe. The third driving device is fixedly housed in the fixing groove. The negative pressure shell is fixedly housed in the fixing groove and communicates with the second connection port. The negative pressure shell has a second air extraction chamber. The pull rod has a second sealing disc. The pull rod is threadedly connected to the rotating shaft of the third driving device. The second sealing disc is movably housed in the second air extraction chamber and is tightly connected to the chamber wall.

[0016] Furthermore, the processing platform includes a loading hopper, which is detachably connected to the placement plate and located below the clamping device. The placement plate is provided with a discharge groove, which is located below the clamping device and communicates with the loading hopper.

[0017] A positioning system for a PCB board final processing equipment includes a first camera, a second camera, a tool setting boss, a first image recognition module, a second image recognition module, a drive module, a data processing module, and a storage module.

[0018] The first camera is used to acquire an image of the tool-setting boss and transmit it back to the image module;

[0019] The second camera is used to acquire images of the PCB board to be cut and transmit them back to the image module;

[0020] The tool-setting boss is used to provide a reference position for positioning the first camera;

[0021] The first image recognition module is used to transmit the image acquired by the first camera back to the data processing module;

[0022] The second image recognition module is used to transmit the image acquired by the second camera back to the data processing module;

[0023] The drive module is used to drive the first drive device and the working arm to move.

[0024] The data processing module is used to receive images returned by the first image recognition module and the second image recognition module, call the preset images in the storage module for comparison, and send the corresponding driving instructions to the driving module.

[0025] The storage module is used to store a preset image of the tool setting boss and a preset image of the cutting head facing the PCB board below during tool setting.

[0026] The beneficial effects of this invention are:

[0027] 1. A first camera, LED beads, and a tool-setting boss are used to assist the cutting head in tool setting. During tool setting, the first camera acquires an image on the tool-setting boss and then transmits it back to the first image recognition module on the control panel. The first image recognition module then sends the image information to the data processing module. The data processing module calls the tool setting photos pre-stored in the storage module and compares them with the image transmitted back by the first image recognition module. If the light emitted by the LED beads in the image is not in the center of the image frame, the first drive device drives the processing platform to move, so that the tool-setting boss and LED beads move below the first camera. At this time, the light spot in the image is also located in the center of the image frame, and the distance between the cutting head and the first camera is fixed. At this time, the tool setting of the cutting head is completed, which facilitates quick positioning and tool setting before PCB board pin cutting and helps to improve the pin cutting efficiency.

[0028] 2. A cutting head is used to cut the pins one by one. Before cutting the PCB board pins, the second camera captures and obtains the position of the pins on the PCB board and the position of adjacent electronic components, and then uploads it to the second image recognition module on the control panel. The second image recognition module sends the image information to the data processing module. The data processing module calls the pre-stored electronic component photos in the storage module and compares them with the image returned by the second image recognition module. If they match the shape on the preset image, they are judged as preset components. At this time, the data processing module issues a rotation command to the drive module according to the height and position parameters of the component. The drive module issues a drive command to the second drive device. The second drive device rotates to drive the cutting edge to rotate to avoid the electronic components next to the pins, which is conducive to cutting the pins on the double-sided PCB board quickly and accurately, and improving the pin cutting efficiency.

[0029] 3. The PCB board with the leads to be cut is clamped and fixed by a negative pressure clamping method. When clamping the PCB board with the leads to be cut, the worker operates the air extraction device by pressing a button to push the gas into the first air extraction chamber. At this time, the clamping component rises, and the worker places the two sides of the PCB board into the clamping slots on both sides. Then, the worker operates the air extraction device by pressing a button to extract the gas from the first air extraction chamber. At this time, the clamping component descends to firmly clamp the PCB board, which is conducive to the worker clamping the PCB board quickly and saves clamping time.

[0030] In summary, the final processing equipment and positioning system for this PCB board utilize a first camera, LEDs, and a tool-setting boss to assist the cutting head for tool setting, facilitating rapid positioning and tool setting before PCB board pin cutting. The use of a cutting head to cut each pin individually allows for fast and precise cutting of pins on both sides of the PCB board. The use of negative pressure clamping to hold and fix the PCB board with the pins to be cut allows workers to quickly clamp the PCB board, saving clamping time. Attached Figure Description

[0031] Figure 1 This is an exploded view of the PCB board final processing equipment of the present invention;

[0032] Figure 2 This is an overall schematic diagram of the PCB board final processing equipment of the present invention;

[0033] Figure 3 This is an exploded view of the cutting device of the PCB board final processing equipment of the present invention;

[0034] Figure 4 A schematic diagram of the air extraction device of the PCB board final processing equipment of the present invention;

[0035] Figure 5This is a schematic diagram of the cutting device of the PCB board final processing equipment of the present invention;

[0036] Figure 6 This is a schematic diagram of the cutting device of the PCB board final processing equipment of the present invention from another angle.

[0037] Figure 7 This is a schematic diagram of the second drive device of the PCB board final process processing equipment of the present invention;

[0038] Figure 8 This is a cross-sectional view of the processing platform of the PCB board final processing equipment of the present invention;

[0039] Figure 9 This is a schematic diagram of the overall processing platform of the PCB board final processing equipment of the present invention;

[0040] Figure 10 This is a schematic diagram of the processing platform of the PCB board final processing equipment of the present invention from another angle.

[0041] Figure 11 This is a schematic diagram of the tool setter in the final processing equipment for PCB boards according to the present invention. Detailed Implementation

[0042] To more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0043] Please refer to Figures 1-11This invention proposes a final processing equipment for PCB boards, including a machine tool 1, a cutting device 2, and a control console 3. The control console 3 is located on one side of the machine tool 1 and is electrically connected to both the machine tool 1 and the cutting device 2. The machine tool 1 has a working arm 11, and the cutting device 2 is fixedly suspended on the working arm 11. The cutting device 2 includes a fixed frame 21, a cutting head 22, a first camera 23, and a distance sensor 24. The fixed frame 21 is fixedly connected to the working arm 11. The cutting head 22, the first camera 23, and the distance sensor 24 are all fixedly connected inside the fixed frame 21 and face the machine tool 1. The straight line formed by the first camera 23 and the cutting head 22 is perpendicular to the straight line formed by the cutting head 22 and the distance sensor 24. The machine tool 1 includes a first drive device 12 and a processing platform 13. The processing platform 13 is located below the cutting device 2 and is slidably connected to the machine tool 1. 2. A lead screw fixed on the machine tool 1 and threadedly connected to the machining platform 13 is provided on the machining platform 13. The machining platform 13 is provided with a tool setter 131. The tool setter 131 is provided with a tool setter boss 1311 and an LED bead 1312. The LED bead 1312 is fixedly connected to the center of the tool setter boss 1311 and faces upward. The tool setter boss 1311 is provided with a main control module that is electrically connected to the LED bead 1312. The tool setter boss 1311 is provided with multiple stacked truncated cones 13111 with successively decreasing diameters. The cutting head 22, the first camera 23, the distance sensor 24, and the LED bead 1312 are all electrically connected to the control console 3. The first drive device 12 can rotate according to the image of the tool setter boss 1311 transmitted by the first camera 23 and the flashing position of the LED bead 1312, thereby driving the machining platform 13 to slide directly below the first camera 23 to complete the tool setter of the cutting head 22.

[0044] In this embodiment:

[0045] Machine tool 1 is a three-axis CNC machine tool used to drive the working arm 11 to move;

[0046] The working arm 11 is used to drive the cutting device 2 to move. The working arm is equipped with a stepper motor and a moving part. The stepper motor shaft is equipped with a lead screw. The moving part is threadedly connected to the lead screw. The stepper motor rotates to drive the moving part to slide back and forth. The cutting device 2 is fixedly connected to the bottom of the moving part.

[0047] The first driving device 12 is a stepper motor, which is used to drive the processing platform 13 to slide left and right;

[0048] The processing platform 13 provides a fixed placement structure for the PCB board with pins to be cut;

[0049] Tool setter 131 is used to assist the cutting head 22 in tool setting;

[0050] The tool setting boss 1311 is used to provide a positioning reference structure for the first camera 23 during tool setting;

[0051] The truncated cone 13111 is used to assist the first camera 23 in capturing images;

[0052] The LED 1312 is used as a screen guide point in the first camera 23. The main control module is electrically connected to the control console 3. The main control module is used to send flashing commands to the LED.

[0053] Cutting device 2 is used to cut the pins on the OCB board;

[0054] The mounting bracket 21 provides a fixed structure for the cutting head 22;

[0055] Cutting head 22 is used to cut pins;

[0056] The first camera 23 is used to acquire images below and assist the cutting head 22 in aligning the blade;

[0057] Distance sensor 24 is an infrared distance sensor used to detect the distance between the processing platform 13 and distance sensor 24. This distance is the distance from the fixed frame 21 to the processing platform 13.

[0058] The control console 3 provides a machine tool for the user to operate. The control console 3 has a circuit board, which has a drive module, a data processing module, an image recognition module, and a storage module. The data processing module is electrically connected to the drive module, the image recognition module, and the storage module. The drive module is electrically connected to the stepper motor on the machine tool 1 and the first drive device 12. The image recognition module is divided into a first image recognition module and a second image recognition module, which are electrically connected to the first camera 23 and the second camera 225, respectively. The storage module is used to store the preset image of the tool setting boss 1311 and the preset image of the cutting head 22 facing the PCB board below during tool setting.

[0059] Specifically, during tool setting, the first camera 23 acquires an image of the tool setting boss 1311 and transmits it back to the first image recognition module on the control console 3. The first image recognition module then sends the image information to the data processing module. The data processing module compares the pre-stored tool setting photos in the storage module with the image transmitted back by the first image recognition module. If the light emitted by the LED bead 1312 in the image is not in the exact center of the image frame, the first drive device 12 moves the processing platform. That is, when the flashing light spot is located on the right side of the image, the first drive device... When position 12 is rotated forward, it causes the processing platform 13 to slide to the left. This leftward movement of the processing platform 13 causes the tool-setting boss 1311 to also move to the left. Gradually, the tool-setting boss 1311 and the LED beads 1312 move to below the first camera 23. When the tool-setting boss 1311 is directly below, the image of the frustum 13111 on the first camera 23 is a series of concentric circular images with diameters decreasing inwards. At this time, the light spot in the image is also located in the center of the image frame. The distance between the cutting head 22 and the first camera 23 is fixed. Thus, the cutting head 22 is completed. If the tool setting is not in the exact center, the annular image will be non-concentric, and the image that should be an annular image will be an elliptical image. At this time, the tool setting is not completed. The first driving device 12 continues to rotate clockwise or counterclockwise to position the light spot in the image frame in the exact center. The acquired frustum 13111 image is a series of concentric annular images with diameters decreasing inwards sequentially. After the tool setting is completed, the distance sensor 24 acquires the vertical height distance, and the first camera 23 acquires the pin position on the PCB board and transmits it back to the first image recognition module. The first image recognition... The module then sends the data back to the data processing module, which calculates the horizontal and vertical distances between each pin and the center of the frustum 13111. The calculated distance parameters are then converted into drive commands and sent to the drive module. The drive module then issues corresponding commands to the stepper motor and the first drive device 12 on the machine tool 1. When the cutting head 22 is above the pin to be cut, the working arm 11 descends to drive the cutting head 22 to descend and cut the pin. This facilitates quick positioning and tool setting before cutting the PCB pin, which helps to improve the cutting efficiency of the pin.

[0060] Furthermore, a reflective surface 1313 is provided on one side of the blade 131, with the reflective surface 1313 facing upward.

[0061] In this embodiment:

[0062] The reflective surface 1313 is used to improve the detection accuracy of the distance sensor 24.

[0063] Furthermore, the cutting head 22 includes a second drive device 221, a hydraulic cylinder 222, a first cutting head 223, and a spring 224. A fixed post 2211 is provided on the rotating shaft of the second drive device 221. The hydraulic cylinder 222 is fixedly connected to one side of the fixed post 2211 and parallel to the horizontal plane. The first cutting head 223 is fixedly connected to one end of the fixed post 2211. An obstacle groove 22111 is provided on the fixed post 2211. The spring 224 is fixedly connected to one side of the fixed post 2211 and partially blocks the obstacle groove 22111. The push rod of 222 is provided with a pressing piece 2221, which abuts against the surface of the spring piece 224. One end of the spring piece 224 is provided with a second cutting head 2241, which is aligned with the first cutting head 223. The cutting head 22 includes a second camera 225, which is fixedly connected to the fixing post 2211 and partially housed in the relief groove 22111. A cutting opening 101 is provided between the first cutting head 223 and the second cutting head 2241, and the second camera 225 faces the cutting opening 101.

[0064] In this embodiment:

[0065] The second driving device 221 is a stepper motor, used to drive the cutting edge 101 to rotate;

[0066] The fixed column 2211 is used to provide a fixed structure for the hydraulic cylinder 222;

[0067] The clearance groove 22111 provides a pressing space for the spring 224;

[0068] Hydraulic cylinder 222 is used to pull pressing plate 2221 to press spring 224;

[0069] Pressing tab 2221 is used to contact pressing spring 224;

[0070] The first cutting head 223 is used to cooperate with the second cutting head 2241 to cut the pin;

[0071] The spring 224 facilitates the reset of the second cutting head 2241 when it cuts off the pin;

[0072] The second cutting head 2241 is used to cooperate with the first cutting head 223 to cut the pin;

[0073] The second camera 225 is used to acquire the position of the pin in the vertical direction and the position of the electronic components next to the pin, and transmit them back to the second image recognition module;

[0074] Cutout 101 is used to provide a reference range for the second camera 225 to acquire the image below;

[0075] Specifically, before cutting the PCB board pins, the second camera 225 captures and obtains the position of the pins on the PCB board and the position of adjacent electronic components, and then uploads it to the second image recognition module on the control console 3. The second image recognition module then sends the image information to the data processing module. The data processing module calls the pre-stored electronic component photos in the storage module and compares them with the image returned by the second image recognition module. If they match the shape on the preset image, they are judged as preset components. At this time, the data processing module issues a rotation command to the drive module according to the height and position parameters of the component. The drive module then issues a drive command to the second drive device 221. The second drive device 221 rotates to drive the cutting edge 101 to rotate to avoid the electronic components next to the pins. This is conducive to quickly and accurately cutting the pins on the double-sided PCB board and improving the pin cutting efficiency.

[0076] Furthermore, the processing platform 13 includes a placement plate 132, a clamping device 133, and a button 134. The clamping device 133 is movably placed on the upper surface of the placement plate 132, and the button 134 is fixedly connected to the placement plate 132 and close to the clamping device 133. The clamping device 133 is located on one side of the tool setter 131. The PCB board final processing equipment includes an air extraction device 4. The air extraction device 4 is connected to the clamping device 133 through an external flexible connection pipe and is electrically connected to the button 134. Pressing the button 134 can control the air extraction device 4 to extract air so that the clamping device 133 clamps the PCB board with the leads to be cut. The clamping device 133 includes a support assembly 1331 and a knob 1332. The placement plate 132 is provided with a slide rail 1321 and a fixed boss 1322. Two support components 1331 are slidably connected to the slide rail 1321 and are symmetrically arranged, and are respectively connected to the air extraction device 4. The knob rod 1332 passes through the fixed boss 1322 and the two support components 1331 in sequence, and is rotatably connected to the fixed boss 1322 and threadedly connected to the two support components 1331 respectively. The support component 1331 includes a sliding member 13311 and a clamping member 13312. The sliding member 13311 is provided with a first air extraction chamber 13314 and a first connection port 13315. The air extraction device 4 is connected to the sliding member 13311 through the first connection port 13315 and is in communication with the first air extraction chamber 13314. The clamping member 13312 is provided with a sliding post 13316, which is movably housed in the first suction chamber 13314. One end of the sliding post 13316 is provided with a first sealing plate 13317, which is tightly connected to the cavity wall of the first suction chamber 13314. A clamping groove 13318 for clamping an external PCB board is provided between the sliding member 13311 and the clamping member 13312. The suction device 4 includes a housing 41, a third driving device 42, a negative pressure housing 43, a pulling rod 44, and a pressure sensor 45. The housing 41 is provided with a fixing groove 411 and a second connection port 412, which is connected to the clamping device 133 through an external flexible connection pipe. The third drive device 42 is fixedly housed in the fixed groove 411, and the negative pressure shell 43 is fixedly housed in the fixed groove 411 and communicates with the second connection port 412. The negative pressure shell 43 is provided with a second suction chamber 431, and the pull rod 44 is provided with a second sealing plate 441. The pull rod 44 is threadedly connected to the rotating shaft of the third drive device 42, and the second sealing plate 441 is movably housed in the second suction chamber 431 and is tightly connected to the chamber wall. The processing platform 13 includes a loading hopper 135, which is detachably connected to the placement plate 132 and located below the clamping device 133. The placement plate 132 is provided with a discharge groove 1323, which is located below the clamping device 133 and communicates with the loading hopper 135.

[0077] In this embodiment:

[0078] The placement plate 132 is used to provide a supporting platform for the clamping device 133;

[0079] The slide rail 1321 is used to provide a sliding support structure for the clamping device 133;

[0080] The fixed boss 1322 is used to provide a fixed structure for the knob rod 1332. The fixed boss 1322 is provided with a bearing, and the knob rod 1332 passes through the bearing and is fixedly connected to the inner ring of the bearing.

[0081] The clamping device 133 is used to clamp and fix the PCB board, and its width can be adjusted to accommodate PCB boards of different sizes;

[0082] There are two support components 1331, both used to clamp the PCB board;

[0083] The slider 13311 is used to provide a support structure for the bottom of the PCB board, and also cooperates with the slider 13311 to clamp the two sides of the PCB board.

[0084] The clamping member 13312 is used for lifting and lowering, and it works together with the clamping member 13312 to clamp the two sides of the PCB board;

[0085] The first suction chamber 13314 is used to provide a sliding space for the sliding column 13316;

[0086] The first connection port 13315 is used to provide a structure for the clamping member 13312 to connect to an external flexible connection pipe;

[0087] The sliding column 13316 is used to provide a support structure for the sliding member 13311 to slide up and down;

[0088] The first sealing disc 13317 is used to provide a structure for the sliding column 13316 to shield the first suction chamber 13314;

[0089] The knob 1332 is a lead screw used to adjust the distance between the two support components 1331. One support component 1331 has a forward thread, and the other support component 1331 has a reverse thread.

[0090] Button 134 is used to provide workers with an operation button to control the suction device 4 to perform suction.

[0091] The clamping groove 13318 is used to provide a clamping space for the two sides of the PCB board;

[0092] The air extraction device 4 is used to control the lifting and lowering of the sliding member 13311, so as to control the support assembly 1331 to clamp the PCB board;

[0093] The housing 41 provides a protective structure for the third drive unit 42, the negative pressure housing 43, the pull rod 44, and the pressure sensor 45;

[0094] The fixing slot 411 provides a space for placing the third drive device 42, the negative pressure housing 43, the pull rod 44, and the air pressure sensor 45;

[0095] The second connection port 412 is used to connect an external flexible connection pipe, so that the second suction chamber 431 is connected to the first suction chamber 13314.

[0096] The third drive device 42 is a stepper motor, used to drive the pull rod 44 to slide back and forth;

[0097] The negative pressure housing 43 provides a sliding support for the pull rod 44 and also provides a negative pressure structure;

[0098] The second suction chamber 431 is used to provide a sliding space for the pull rod 44 and to provide a negative pressure space;

[0099] The pull rod 44 is used to pull and evacuate air within the second evacuation chamber 431;

[0100] The second sealing plate 441 is used to block the second suction chamber 431, and at the same time provides a structure for the pull rod 44 to block the second suction chamber 431.

[0101] The pressure sensor 45 is used to monitor the pressure in the second suction chamber 431;

[0102] The hopper 135 is used to provide a storage structure for the cut-off leads;

[0103] The feed chute 1323 provides a channel for the cut-off leads to fall into the feed hopper 135;

[0104] Specifically, when clamping a PCB board with cut leads, the worker operates the suction device 4 via a button to push gas into the first suction chamber 13314. At this time, the clamping member 13312 rises, and the worker places both sides of the PCB board into the clamping slots 13318 on both sides. Then, the worker operates the suction device 4 via button 134 to extract the gas from the first suction chamber 13314. At this time, the clamping member 13312 descends to firmly clamp the PCB board, which helps the worker to quickly clamp the PCB board and saves clamping time.

[0105] A positioning system for a PCB board final processing equipment includes a first camera 23, a second camera 225, a tool setting boss 1311, a first image recognition module, a second image recognition module, a drive module, a data processing module, and a storage module.

[0106] The first camera 23 is used to acquire images of the tool-setting boss 1311 and transmit them back to the image module;

[0107] The second camera 225 is used to acquire images of the PCB board to be cut and transmit them back to the image module;

[0108] The tool-setting boss 1311 is used to provide a reference position for positioning the first camera 23;

[0109] The first image recognition module is used to transmit the images acquired by the first camera 23 back to the data processing module;

[0110] The second image recognition module is used to transmit the images acquired by the second camera 225 back to the data processing module;

[0111] The drive module is used to drive the first drive device 12 and the working arm 11 to move;

[0112] The data processing module is used to receive the images returned by the first image recognition module and the second image recognition module, call the preset images in the storage module for comparison, and send the corresponding driving instructions to the driving module.

[0113] The storage module is used to store the preset image of the tool setting boss 1311 during tool setting and the preset image of the cutting head 22 facing the PCB board below.

[0114] In this embodiment:

[0115] The first camera 23 acquires an image of the tool-setting boss 1311 and then transmits it back to the first image recognition module on the control console 3. The first image recognition module then sends the image information to the data processing module. The data processing module calls the tool-setting photo pre-stored in the storage module and compares it with the image transmitted back by the first image recognition module. If the light emitted by the LED bead 1312 in the image is not in the exact center of the image frame, the first drive device 12 moves the processing platform. That is, when the light spot is located on the right side of the image, the first drive device 12 moves. The two forward rotations cause the processing platform 13 to slide to the left. This leftward movement of the processing platform 13 causes the tool-setting boss 1311 to also move to the left. Gradually, the tool-setting boss 1311 and the LED beads 1312 move to below the first camera 23. When the tool-setting boss 1311 is directly below, the image of the frustum 13111 on the first camera 23 is a series of concentric circular images with diameters decreasing inwards. At this time, the light spot in the image is also located in the center of the image frame, while the distance between the cutting head 22 and the first camera 23 remains fixed. At this point, the cutting head 22 has completed its tool setting. If it is not in the center, the circular image will be non-concentric, and the image that should be a circular image will be an elliptical image. At this point, the tool setting is not completed. The first drive device 12 continues to rotate forward or backward to make the light spot in the image also located in the center of the image frame, and the acquired image of the frustum 13111 will be a circular image with multiple diameters decreasing inward and concentric. After the tool setting is completed, the distance sensor 24 acquires the vertical distance, the first camera 23 acquires the pin position on the PCB board and sends it back to the first image recognition module, the first image recognition module sends the data back to the data processing module, the data processing module calculates the horizontal and vertical distances between the pin and the center of the frustum 13111 one by one, and then converts the calculated distance parameters into drive commands and sends them to the drive module, the drive module issues corresponding commands to the stepper motor on the machine tool 1 and the first drive device 12. When the cutting head 22 is above the pin to be cut, the working arm 11 descends to drive the cutting head 22 to descend and cut the pin.

[0116] Before cutting the PCB board pins, the second camera 225 captures and obtains the position of the pins on the PCB board and the position of adjacent electronic components, and then uploads it to the second image recognition module on the control console 3. The second image recognition module then sends the image information to the data processing module. The data processing module calls the pre-stored electronic component photos in the storage module and compares them with the image returned by the second image recognition module. If they match the shape on the preset image, they are judged as preset components. At this time, the data processing module issues a rotation command to the drive module according to the height and position parameters of the component. The drive module then issues a drive command to the second drive device 221. The second drive device 221 rotates to drive the cutting nozzle 101 to rotate to avoid the electronic components next to the pins. This is conducive to quickly and accurately cutting the pins on the double-sided PCB board and improving the pin cutting efficiency.

[0117] In summary, the final processing equipment and positioning system for this PCB board utilize a first camera, LEDs, and a tool-setting boss to assist the cutting head for tool setting, facilitating rapid positioning and tool setting before PCB board pin cutting. The use of a cutting head to cut each pin individually allows for fast and precise cutting of pins on both sides of the PCB board. The use of negative pressure clamping to hold and fix the PCB board with the pins to be cut allows workers to quickly clamp the PCB board, saving clamping time.

[0118] Of course, the present invention may have many other embodiments. Based on this embodiment, other embodiments obtained by those skilled in the art without any creative effort are all within the scope of protection of the present invention.

Claims

1. A PCB board final processing equipment, comprising a machine tool, a cutting device, and a control console, wherein the control console is located on one side of the machine tool and electrically connected to both the machine tool and the cutting device, the machine tool is provided with a working arm, and the cutting device is fixedly suspended on the working arm, characterized in that, The cutting device includes a fixed frame, a cutting head, a first camera, and a distance sensor. The fixed frame is fixedly connected to the working arm. The cutting head, the first camera, and the distance sensor are all fixedly connected within the fixed frame and face the machine tool. The line formed by the first camera and the cutting head is perpendicular to the line formed by the cutting head and the distance sensor. The machine tool includes a first drive device and a processing platform. The processing platform is located below the cutting device and is slidably connected to the machine tool. The first drive device is fixed to the machine tool, and the lead screw on its rotating shaft is threadedly connected to the processing platform. A tool setter is provided, which has a tool setter boss and an LED. The LED is fixedly connected to the center of the tool setter boss and faces upward. The tool setter boss contains a main control module electrically connected to the LED. The tool setter boss has multiple stacked truncated cones with progressively decreasing diameters. The cutting head, the first camera, the distance sensor, and the LED are all electrically connected to the control console. The first drive device can rotate according to the image of the tool setter boss transmitted by the first camera and the flashing position of the LED to drive the processing platform to slide directly below the first camera to complete the tool setter of the cutting head.

2. The PCB board final processing equipment according to claim 1, characterized in that, The tool setter has a reflective surface on one side, which faces upwards.

3. The PCB board final processing equipment according to claim 1, characterized in that, The cutting head includes a second driving device, a hydraulic cylinder, a first cutting head, and a spring sheet. A fixed column is provided on the rotating shaft of the second driving device. The hydraulic cylinder is fixedly connected to one side of the fixed column and is parallel to the horizontal plane. The first cutting head is fixedly connected to one end of the fixed column. An avoidance groove is provided on the fixed column. The spring sheet is fixedly connected to one side of the fixed column and partially covers the avoidance groove. A pressing plate is provided on the push rod of the hydraulic cylinder. The pressing plate abuts against the surface of the spring sheet. A second cutting head is provided at one end of the spring sheet. The second cutting head is aligned with the first cutting head.

4. The PCB board final processing equipment according to claim 3, characterized in that, The cutting head includes a second camera, which is fixedly connected to the fixed post and partially housed in the clearance groove. A cutting opening is provided between the first cutting head and the second cutting head, and the second camera faces the cutting opening.

5. The PCB board final processing equipment according to claim 4, characterized in that, The processing platform includes a placement plate, a clamping device, and a button. The clamping device is movably placed on the upper surface of the placement plate, and the button is fixedly connected to the placement plate and close to the clamping device. The clamping device is located on one side of the tool setter. The final PCB board processing equipment includes an air extraction device. The air extraction device is connected to the clamping device through an external flexible connection pipe and is electrically connected to the button. Pressing the button controls the air extraction device to extract air so that the clamping device clamps the PCB board with the pins to be cut.

6. The PCB board final processing equipment according to claim 5, characterized in that, The clamping device includes a support assembly and a knob rod. The placement plate is provided with a slide rail and a fixed boss. The two support assemblies are slidably connected to the slide rail and are symmetrically arranged and respectively connected to the air extraction device. The knob rod passes through the fixed boss and the two support assemblies in sequence, is rotatably connected to the fixed boss, and is threadedly connected to the two support assemblies respectively.

7. The PCB board final processing equipment according to claim 6, characterized in that, The support assembly includes a slider and a clamping member. The slider has a first suction chamber and a first connection port. The suction device is connected to the slider through the first connection port and communicates with the first suction chamber. The clamping member has a sliding post that is movably housed in the first suction chamber. One end of the sliding post has a first sealing plate that is tightly connected to the cavity wall of the first suction chamber. A clamping groove for clamping an external PCB board is provided between the slider and the clamping member.

8. The PCB board final processing equipment according to claim 5, characterized in that, The air extraction device includes a housing, a third drive device, a negative pressure shell, a pull rod, and a pressure sensor. The housing has a fixing groove and a second connection port. The second connection port is connected to the clamping device through an external flexible connection pipe. The third drive device is fixedly housed in the fixing groove. The negative pressure shell is fixedly housed in the fixing groove and communicates with the second connection port. The negative pressure shell has a second air extraction chamber. The pull rod has a second sealing disc. The pull rod is threadedly connected to the rotating shaft of the third drive device. The second sealing disc is movably housed in the second air extraction chamber and is tightly connected to the chamber wall.

9. The PCB board final processing equipment according to claim 5, characterized in that, The processing platform includes a loading hopper, which is detachably connected to the placement plate and located below the clamping device. The placement plate is provided with a discharge groove, which is located below the clamping device and communicates with the loading hopper.

10. A positioning system for a PCB board final processing equipment, as described in any one of claims 4-9, characterized in that, It includes the first camera, the second camera, the tool-setting boss, the first image recognition module, the second image recognition module, the driving module, the data processing module, and the storage module; The first camera is used to acquire an image of the tool-setting boss and transmit it back to the first image recognition module; The second camera is used to acquire images of the PCB board to be cut and transmit them back to the second image recognition module; The tool-setting boss is used to provide a reference position for positioning the first camera; The first image recognition module is used to transmit the image acquired by the first camera back to the data processing module; The second image recognition module is used to transmit the image acquired by the second camera back to the data processing module; The drive module is used to drive the first drive device and the working arm to move. The data processing module is used to receive images returned by the first image recognition module and the second image recognition module, call the preset images in the storage module for comparison, and send the corresponding driving instructions to the driving module. The storage module is used to store a preset image of the tool setting boss and a preset image of the cutting head facing the PCB board below during tool setting.

Images