Automatic CCD (Charge Coupled Device) alignment device of vertical screen printing machine

Abstract

The invention provides a vertical screen printing machine CCD automatic alignment device, and relates to the field of circuit board production, the vertical screen printing machine CCD automatic alignment device comprises a mounting plate seat, two conveying double guide rails are arranged on the two mounting plate seats, a first vertical feeding frame and a second vertical feeding frame are arranged on the two conveying double guide rails respectively, a PCB body is arranged on the first vertical feeding frame, and the PCB body is arranged on the second vertical feeding frame. And a CCD (Charge Coupled Device) camera mechanism is arranged on one mounting plate seat. The CCD camera mechanism is arranged, the problem of alignment of the vertical printing machine is solved, a target hole is automatically found after the position of a PCB area calibration hole is photographed through four cameras or two cameras at opposite angles, front and back symmetrical screen frames are controlled through algorithm software to automatically adjust the position to be aligned with a screen graph, high-precision printing is achieved, and the printing efficiency is improved. And meanwhile, when the CCD camera mechanism runs and is used, the adjusting hand wheel can be quickly locked through the hand wheel locking module after being used, the situation that the adjusting position deviates is avoided, and the printing precision is further improved.

Description

Technical Field

[0001] The invention relates to the field of circuit board production, and in particular to a CCD automatic alignment device of a vertical screen printer. Background Art

[0002] Nowadays, screen printing technology has been digitized and automated. As a representative of it, vertical screen printing machine has been widely used and developed in various fields with its high efficiency and precision.

[0003] A CCD camera is a digital camera that uses a charge-coupled device as an image sensor; Working principle: When the shutter is pressed, the CCD sensor captures light and converts it into electrical signals, which undergo a series of complex processing and ultimately present a photo or video.

[0004] In the field of PCB solder mask printing, the current mainstream printing method adopts horizontal printing, which places the PCB board on the horizontal automatic alignment platform, with the screen above the PCB board and the CCD camera below the PCB board alignment platform. This alignment method is difficult to adapt to the vertical printing solution, which is not conducive to the CCD camera to determine the position of the calibration hole in the PCB board area, thereby affecting the printing accuracy.

[0005] Therefore, we made improvements to this problem and proposed a CCD automatic alignment device for a vertical screen printing machine. Summary of the invention

[0006] The purpose of the present invention is to address the problem that the existing PCB board is placed on a horizontal automatic alignment platform, the screen is above the PCB board surface, and the CCD camera is below the PCB board surface alignment platform. This alignment method is difficult to adapt to the vertical printing solution, which is not conducive to the CCD camera to determine the position of the calibration hole in the PCB board area, thereby affecting the printing accuracy.

[0007] In order to achieve the above-mentioned purpose of the invention, the present invention provides a CCD automatic alignment device for a vertical screen printer to improve the above-mentioned problem.

[0008] The specific application is as follows: It comprises a mounting plate seat, two mounting plate seats are provided with two double conveying guide rails, and the two double conveying guide rails are respectively provided with a vertical feeding frame 1 and a vertical feeding frame 2, the vertical feeding frame 1 is provided with a PCB board body, one of the mounting plate seats is provided with a CCD camera mechanism, and the other mounting plate seat is provided with a vertical screen frame alignment mechanism 1 and a vertical screen frame alignment mechanism 2; The first vertical screen frame alignment mechanism and the second vertical screen frame alignment mechanism both include a screen frame outer fixing frame, the two screen frame outer fixing frames are respectively located on both sides of the second vertical feeding frame, the two screen frame outer fixing frames are both provided with a screen plate fixing frame, the two screen plate fixing frames are both provided with a screen plate body, and the two screen frame outer fixing frames are provided with a Z-axis displacement module and an X-axis displacement module; The CCD camera mechanism includes a Y-axis module, which is located on one side of the PCB board body. A cleaning auxiliary module is arranged on the Y-axis module, and an X-axis module is arranged on the Y-axis module. An X-axis screw rod is arranged on the X-axis module, and adjustment hand wheels are arranged at both ends of the X-axis screw rod, and handwheel locking modules are arranged on the two adjustment hand wheels.

[0009] As a preferred technical solution of the present application, the CCD camera mechanism also includes a mounting frame, which is fixedly connected to the top of one of the mounting plate seats, and the Y-axis module is fixedly connected to the top of the mounting frame. A Y-axis servo motor is arranged on an outer wall of one side of the Y-axis module, and the output shaft of the Y-axis servo motor is connected to the Y-axis screw rod through a coupling. The X-axis module is movably connected to the outer wall of the Y-axis screw rod, and two Z-axis profiles are arranged on the X-axis module and the X-axis screw rod, and two translation stage racks are arranged on the two Z-axis profiles, and manual translation stages are arranged on the four translation stage racks, and the CCD camera body and light source components are arranged on the four manual translation stages.

[0010] As the preferred technical solution of the present application, the handwheel locking module includes two handwheel connecting rods, which are respectively fixedly connected to the two adjusting handwheels, the outer walls of the two handwheel connecting rods are fixedly connected to the mounting brackets, the two mounting brackets are movably connected to the shaft rod members, the outer walls of the two shaft rod members are fixedly connected to the locking connecting rods, one end of the two locking connecting rods is fixedly connected to the locking parts, and the outer walls on both sides of the X-axis module are fixedly connected to the annular brackets, and the two annular brackets are both sleeved on the outside of the X-axis screw.

[0011] As the preferred technical solution of the present application, the outer walls of the two annular brackets are fixedly connected with locking toothed rings, the two locking pieces are respectively clamped with the two locking toothed rings, the two handwheel connecting rods are fixedly connected with pressure springs, one end of the two pressure springs are respectively fixedly connected with the outer walls of one side of the two locking connecting rods, and the outer walls of the two handwheel connecting rods are movably connected with opening and closing pieces, the interiors of the two opening and closing pieces are provided with inclined guide grooves, the outer walls of the two locking connecting rods are respectively in contact with the inner walls of the two inclined guide grooves, the outer walls of the two opening and closing pieces are movably connected with rotating ring frames, and the two adjusting handwheels are fixedly connected with telescopic spring rods, and one end of the two telescopic spring rods are respectively fixedly connected with the outer walls of one side of the two opening and closing pieces.

[0012] As a preferred technical solution of the present application, the cleaning auxiliary module includes two fixed frames, which are respectively fixedly connected to the outer walls on both sides of the Y-axis module, and the two fixed frames are movably connected with connecting shafts, and the outer walls of the two connecting shafts are fixedly connected with mounting plates, and the two mounting connecting plates are movably connected with rotating shafts, and the outer walls of one side of the two mounting connecting plates are fixedly connected with stepper motors, and the output shafts of the two stepper motors are respectively connected to one end of the two rotating shafts through couplings, and the bottoms of the two fixed frames are fixedly connected with adjusting motors, and the output shafts of the two adjusting motors are respectively connected to the bottom ends of the two connecting shafts through couplings.

[0013] As a preferred technical solution of the present application, the outer walls of the two rotating shafts are fixedly connected to a connecting frame 1, the two connecting frames 1 are fixedly connected to an electric telescopic rod, the output ends of the two electric telescopic rods are fixedly connected to a connecting frame 2, the two connecting frames 2 are movably connected to a connecting warehouse, the outer walls of the two connecting warehouses are fixedly connected to transmission gears, and the two connecting frames 2 are fixedly connected to drive motors, the output shafts of the two drive motors are connected to drive gears through couplings, and the two drive gears are respectively meshed with the two transmission gears.

[0014] As the preferred technical solution of the present application, the outer walls of the two electric telescopic rods are provided with dust filter storage bins, the tops of the two dust filter storage bins are provided with air pumps, the bottoms of the two dust filter storage bins are fixedly connected with negative pressure pipes, the input ends of the two negative pressure pipes are fixedly connected with rotating joints, the two rotating joints are movably connected to the output ends of the two connecting bins respectively, and four cleaning pipe fittings are fixedly connected to the outer walls of one side of the two connecting bins, the outer walls of the multiple cleaning pipe fittings are provided with cleaning brushes, and the outer walls of the multiple cleaning pipe fittings are opened with multiple negative pressure holes.

[0015] As the preferred technical solution of the present application, the Z-axis displacement module includes four sliding base plates, which are respectively fixedly connected to the outer walls of both sides of the two net frame outer fixed frames, and the four sliding base plates are respectively provided with front baffle connecting plates, screw support plates and motor plates, and the four motor plates are respectively fixedly connected with Z-axis servo motors, and the output shafts of the four Z-axis servo motors are respectively provided with couplings, and the four screw support plates are movably connected with ball screws, one end of the four couplings is respectively connected to one end of the four ball screws, and the four sliding base plates are respectively provided with Z-axis linear guides, and each Z-axis linear guide is provided with the same X-axis linear guide and the outer wall of the adjacent ball screw.

[0016] As the preferred technical solution of the present application, each of the four X-axis linear guide rails is provided with a guide sleeve seat, each of the four guide sleeve seats is provided with a guide sleeve, each of the four guide sleeves is provided with a thrust ball bearing, each of the four thrust ball bearings is provided with a steering plate, one side outer wall of the four steering plates is respectively fixedly connected to the outer walls of the two screen fixing frames, and each of the four steering plates is provided with a bearing pressure plate.

[0017] As the preferred technical solution of the present application, the X-axis displacement module includes four module base plates, which are respectively fixedly connected to the outer walls of both sides of the two screen frame outer fixed frames, and the four module base plates are each provided with an X-axis servo motor, an X-axis linear guide rail 2 and a screw rod member, each X-axis linear guide rail 2 is provided with the same Z-axis linear guide rail 2 as the outer wall of the adjacent screw rod member, and a guide sleeve seat 2 is provided on each of the four Z-axis linear guide rails 2, and a guide sleeve 2 is provided on each of the four guide sleeve seats 2, and a thrust ball bearing 2 is provided on each of the four guide sleeves 2, and a steering plate 2 is provided on each of the four thrust ball bearings 2, and one side outer wall of the four steering plates 2 is respectively fixedly connected to the outer walls of the two screen frame fixing frames, and a bearing pressure plate 2 is provided on each of the four steering plates 2.

[0018] Compared with the prior art, the present invention has the following beneficial effects: In the scheme of this application: 1. In order to solve the problem that in the prior art, the PCB board is placed on the horizontal automatic alignment platform, the screen is above the PCB board, and the CCD camera is below the PCB board alignment platform. This alignment method is difficult to adapt to the vertical printing solution, which is not conducive to the CCD camera to determine the position of the calibration hole in the PCB board area, thereby affecting the printing accuracy. The present application solves the alignment problem of the vertical printing machine through the CCD camera mechanism, and can complete the automatic alignment printing of the double-sided screen at one time. In addition, a CCD camera body is set while the vertical screen printer is loading, and the PCB board is aligned by four or two diagonal cameras. After taking photos of the calibrated hole positions in the plate area, the target holes are automatically found, and the algorithm software controls the front and rear symmetrical screen frames to automatically adjust their positions to align with the screen pattern to achieve high-precision printing. At the same time, when the CCD camera mechanism is in operation, the servo drive and handwheel drive are used to adjust the position. During this process, the handwheel needs to be adjusted. Therefore, the handwheel locking module can quickly lock the handwheel after it is adjusted, so as to avoid the situation in which the staff easily touches the handwheel by mistake during the traditional handwheel locking process, resulting in the adjustment position deviation, thereby increasing the data accuracy of the CCD camera mechanism and further improving the printing accuracy; 2. Through the cleaning auxiliary module, the cleaning auxiliary module can clean the inner ring area of ​​the light source of the CCD camera mechanism when in use, so as to avoid the accumulation of dust and other impurities in the area after long-term use, thereby avoiding the impact on the shooting of the CCD camera body, thereby increasing the shooting clarity of the CCD camera body, so as to further increase the use effect of the device when in use, and the cleaning auxiliary module can clean different light sources when in use, thereby increasing its cleaning effect, and at the same time, dust and other impurities can be concentrated during cleaning, so that the staff can carry out centralized processing, which solves the problem of dust and other impurities accumulation affecting shooting in the prior art; 3. The automatic alignment of the dual screens is realized by setting up the Z-axis displacement module and the X-axis displacement module. When in use, the dual screens can be displaced in four directions to adjust the position of the screen body according to the calibration hole position data of the PCB board body area obtained by the CCD camera mechanism to ensure that the position of the screen body corresponds to the PCB board body, thereby ensuring the printing accuracy of the PCB board body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the CCD automatic alignment device for the vertical screen printer provided in this application; Figure 2 A schematic diagram of the side view structure of the CCD automatic alignment device of the vertical screen printer provided in this application; Figure 3 A schematic diagram of the CCD camera mechanism structure of the CCD automatic alignment device of the vertical screen printer provided in this application; Figure 4 Provided for this application Figure 3 Look at the structural diagram; Figure 5 A schematic diagram of the combined structure of a cleaning auxiliary module and a handwheel locking module of a CCD automatic alignment device for a vertical screen printer provided in this application; Figure 6 Provided for this application Figure 5 Look at the structural diagram; Figure 7 A schematic diagram of the combined structure of the rotating ring frame and the opening and closing parts of the CCD automatic alignment device of the vertical screen printer provided in this application; Figure 8 A schematic diagram of the structure of a hand wheel locking module of a CCD automatic alignment device for a vertical screen printer provided in this application; Fig. 9 A schematic diagram of the combined structure of a pressure spring and a locking connecting rod of a CCD automatic alignment device of a vertical screen printer provided in this application; Fig.10 A schematic diagram of the structure of a cleaning auxiliary module of a CCD automatic alignment device for a vertical screen printer provided in this application; Fig.11 Provided for this application Fig.10 The enlarged structural diagram of part A in the middle; Fig.12 A schematic diagram of the combined structure of the screen plate body and the screen fixing frame of the CCD automatic alignment device of the vertical screen printing machine provided in this application; Fig.13 This is a schematic diagram of the structure of the Z-axis displacement module and the X-axis displacement module of the CCD automatic alignment device of the vertical screen printer provided in this application.

[0020] Indicated in the figure: 1. Mounting plate seat; 2. PCB board body; 3. Vertical feeding frame 1; 4. Double conveying guide rails; 5. CCD camera mechanism; 51. Y-axis module; 52. Adjustment hand wheel; 53. Mounting frame; 54. CCD camera body; 55. Light source; 56. Y-axis servo motor; 57. Z-axis profile; 58. Manual translation stage; 59. Translation stage rack; 510. X-axis module; 511. Y-axis screw rod; 512. X-axis screw rod; 6. Vertical feeding frame 2; 7. Vertical screen frame alignment mechanism 1; 8. Vertical screen frame alignment mechanism 2; 9. Z-axis displacement module; 91. Z-axis servo motor; 92. Motor plate; 93. Coupling; 94. Screw support plate; 95. Ball screw; 96. Sliding base plate; 97. X-axis linear guide rail 1; 98. Front baffle plate; 99. Bearing pressure plate 1; 910. Steering plate 1; 911. Thrust ball bearing 1; 912. Guide sleeve 1; 913. Z-axis linear guide rail 1; 10. X-axis displacement module; 101. X-axis servo motor; 102. Module base plate; 103. X-axis linear guide rail 2; 104. Screw rod; 105. Z-axis linear guide rail 2; 106. Guide sleeve 2; 107 , thrust ball bearing 2; 108, steering plate 2; 109, bearing pressure plate 2; 11, screen body; 12, screen fixing frame; 13, screen frame outer fixing frame; 14, cleaning auxiliary module; 1401, fixing frame; 1402, connecting shaft; 1403, adjusting motor; 1404, installing connecting plate; 1405, stepping motor; 1406, connecting frame 1; 1407, electric telescopic rod; 1408, air pump; 1409, dust filter storage bin; 1410, negative pressure pipe; 1411, connecting bin; 1412, negative pressure hole; 1413, cleaning Pipe fittings; 1414, cleaning brush set; 1415, rotating joint; 1416, transmission gear; 1417, driving gear; 1418, driving motor; 1419, connecting frame two; 15, handwheel locking module; 1501, rotating ring frame; 1502, opening and closing parts; 1503, annular bracket; 1504, locking gear ring; 1505, telescopic spring rod; 1506, mounting bracket; 1507, handwheel connecting rod; 1508, inclined guide groove; 1509, pressure spring; 1510, locking connecting rod; 1511, shaft rod member; 1512, locking member. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] As described in the background technology, the PCB board is placed on the horizontal automatic alignment platform, the screen is above the PCB board, and the CCD camera is below the PCB board surface alignment platform. This alignment method is difficult to adapt to the vertical printing solution, which is not conducive to the CCD camera to determine the position of the calibration hole in the PCB board area, thereby affecting the printing accuracy.

[0023] In order to solve this technical problem, the present invention provides a CCD automatic alignment device for a vertical screen printer, which is applied to CCD automatic alignment of a PCB board.

[0024] Specifically, please refer to Figure 1-Figure 13 The vertical screen printer CCD automatic alignment device specifically includes: A mounting plate seat 1, two mounting plate seats 1 are provided with two double conveying guide rails 4, and the two double conveying guide rails 4 are respectively provided with a vertical feeding frame 1 3 and a vertical feeding frame 2 6, a PCB board body 2 is provided on the vertical feeding frame 1 3, a CCD camera mechanism 5 is provided on one of the mounting plate seats 1, and a vertical screen frame alignment mechanism 1 7 and a vertical screen frame alignment mechanism 2 8 are provided on the other mounting plate seat 1; The vertical screen frame alignment mechanism 1 7 and the vertical screen frame alignment mechanism 2 8 both include a screen frame outer fixing frame 13, the two screen frame outer fixing frames 13 are respectively located on both sides of the vertical feeding frame 2 6, the two screen frame outer fixing frames 13 are both provided with a screen plate fixing frame 12, the two screen plate fixing frames 12 are both provided with a screen plate body 11, and the two screen frame outer fixing frames 13 are provided with a Z-axis displacement module 9 and an X-axis displacement module 10; The CCD camera mechanism 5 includes a Y-axis module 51, which is located on one side of the PCB board body 2. A cleaning auxiliary module 14 is provided on the Y-axis module 51, and an X-axis module 510 is provided on the Y-axis module 51. An X-axis screw rod 512 is provided on the X-axis module 510. Adjustment hand wheels 52 are provided at both ends of the X-axis screw rod 512, and handwheel locking modules 15 are provided on the two adjustment hand wheels 52.

[0025] The vertical screen printer CCD automatic alignment device provided by the present invention is provided with a CCD camera mechanism 5, which solves the problem of vertical printing machine alignment. After taking pictures of the PCB board through four or two diagonal cameras for the calibration hole positions of the PCB board area, the target hole is automatically found, and the algorithm software is used to control the front and rear symmetrical screen frames to automatically adjust the position to align with the screen pattern, so as to achieve high-precision printing. At the same time, when the CCD camera mechanism 5 is in operation, the hand wheel locking module 15 can be used to quickly lock the adjustment hand wheel 52 after it is used, so as to avoid the occurrence of the adjustment position deviation, thereby increasing the data accuracy of the CCD camera mechanism 5. The accuracy of printing is further improved; the vertical feeding frame 1 3 and the vertical feeding frame 2 6 realize the alternating loading and unloading of double-stations, saving the loading and unloading time and improving the production efficiency; the cleaning auxiliary module 14 can clean the inner ring area of ​​the light source part 55 of the CCD camera mechanism 5 when in use, so as to avoid the accumulation of dust and other impurities in the area after long-term use, thereby avoiding affecting the shooting of the CCD camera body 54; the Z-axis displacement module 9 and the X-axis displacement module 10 realize the automatic alignment of the double screens. When in use, the double screens can be displaced in four directions, thereby ensuring the printing accuracy of the PCB board body 2.

[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] Example 1, please refer to Figure 1-Figure 9A vertical screen printer CCD automatic alignment device, wherein the CCD camera mechanism 5 further comprises a mounting frame 53, the mounting frame 53 is fixedly connected to the top of one of the mounting plate seats 1, the Y-axis module 51 is fixedly connected to the top of the mounting frame 53, a Y-axis servo motor 56 is arranged on one side of the outer wall of the Y-axis module 51, the output shaft of the Y-axis servo motor 56 is connected to the Y-axis screw rod 511 through a coupling, the X-axis module 510 is movably connected to the outer wall of the Y-axis screw rod 511, and two There are two Z-axis profiles 57, two translation stage racks 59 are provided on each of the two Z-axis profiles 57, a manual translation stage 58 is provided on each of the four translation stage racks 59, and a CCD camera body 54 and a light source 55 are provided on each of the four manual translation stages 58; the Y-axis module 51 and the X-axis module 510 can move the CCD camera body 54 along the X-axis and the Y-axis, and both servo drive and handwheel drive are adopted, and the manual translation stage 58 and the translation stage rack 59 can further adjust the position of the CCD camera body 54.

[0030] The problem of vertical printing machine alignment is solved, and double-sided screen automatic alignment printing can be completed synchronously at one time. A CCD camera body 54 is set while the vertical screen printer is loading. The PCB board is photographed by four or two diagonal cameras for the calibration hole positions of the PCB board area, and then the target holes are automatically found. The algorithm software controls the front and rear symmetrical screen frames to automatically adjust their positions to align with the screen pattern, thereby achieving high-precision printing.

[0031] Please refer to Figure 7-Figure 9 , a vertical screen printing machine CCD automatic alignment device, whose handwheel locking module 15 includes two handwheel connecting rods 1507, the two handwheel connecting rods 1507 are respectively fixedly connected to the two adjusting handwheels 52, the outer walls of the two handwheel connecting rods 1507 are fixedly connected with mounting brackets 1506, the two mounting brackets 1506 are movably connected with shaft rods 1511, the outer walls of the two shaft rods 1511 are fixedly connected with locking connecting rods 1510, one end of the two locking connecting rods 1510 is fixedly connected with a locking piece 1512, and the outer walls of both sides of the X-axis module 510 are fixedly connected with annular brackets 1503, and the two annular brackets 1503 are both sleeved on the outside of the X-axis screw rod 512; the locking connecting rod 1510 can drive the locking piece 1512 to engage with the locking gear ring 1504 for locking.

[0032] Please refer to Figure 7-Figure 9A vertical screen printing machine CCD automatic alignment device, wherein the outer walls of the two annular brackets 1503 are fixedly connected with locking toothed rings 1504, the two locking members 1512 are respectively engaged with the two locking toothed rings 1504, the two hand wheel connecting rods 1507 are fixedly connected with pressure springs 1509, one end of the two pressure springs 1509 is respectively fixedly connected with the outer walls of one side of the two locking connecting rods 1510, and the outer walls of the two hand wheel connecting rods 1507 are movably connected with opening and closing members 1502, the interiors of the two opening and closing members 1502 are provided with oblique guide grooves 1508, and the two locking connecting rods 151 0, respectively, the outer walls of the two opening and closing members 1502 are in contact with the inner walls of the two inclined guide grooves 1508, the outer walls of the two opening and closing members 1502 are movably connected with the rotating ring frame 1501, and the two adjusting hand wheels 52 are fixedly connected with the telescopic spring rods 1505, and one end of the two telescopic spring rods 1505 is respectively fixedly connected to the outer wall of one side of the two opening and closing members 1502; when the opening and closing member 1502 moves, the telescopic spring rod 1505 is compressed, and as the opening and closing member 1502 moves, the inclined guide groove 1508 will compress the pressure spring 1509, so that the locking link 1510 drives the locking member 1512 to separate from the locking gear ring 1504.

[0033] When the CCD camera mechanism 5 is in operation, the servo drive and the handwheel drive are used to adjust the position. During this process, it is necessary to adjust the handwheel 52. Therefore, the handwheel locking module 15 can quickly lock the adjustment handwheel 52 after use, so as to avoid the situation in which the staff accidentally touches the handwheel during the traditional handwheel locking process, causing the adjustment position to be offset, thereby increasing the data accuracy of the CCD camera mechanism 5 and further improving the printing accuracy.

[0034] Example 2 further optimizes the CCD automatic alignment device of the vertical screen printer provided in Example 1. Specifically, Figure 5 , Figure 6 , Fig.10 and Fig.11 As shown, the cleaning auxiliary module 14 includes two fixed frames 1401, and the two fixed frames 1401 are respectively fixedly connected to the outer walls on both sides of the Y-axis module 51, and the two fixed frames 1401 are movably connected with connecting shafts 1402, and the outer walls of the two connecting shafts 1402 are fixedly connected with mounting plates 1404, and the two mounting plates 1404 are movably connected with rotating shafts, and one side outer wall of the two mounting plates 1404 is fixedly connected with a stepper motor 1405, and the output shafts of the two stepper motors 1405 are respectively connected to one end of the two rotating shafts through couplings, and the bottoms of the two fixed frames 1401 are fixedly connected with adjusting motors 1403, and the output shafts of the two adjusting motors 1403 are respectively connected to the bottom ends of the two connecting shafts 1402 through couplings; the stepper motor 1405 can drive the rotating shaft to rotate, and the adjusting motor 1403 can drive the mounting plate 1404 to rotate through the connecting shaft 1402.

[0035] Further, such as Fig.10 and Fig.11 As shown, the outer walls of the two rotating shafts are fixedly connected with a connecting frame 1406, the two connecting frames 1406 are fixedly connected with an electric telescopic rod 1407, the output ends of the two electric telescopic rods 1407 are fixedly connected with a connecting frame 2 1419, the two connecting frames 1419 are movably connected with a connecting warehouse 1411, the outer walls of the two connecting warehouses 1411 are fixedly connected with a transmission gear 1416, and the two connecting frames 1419 are fixedly connected with a driving motor 1418, the output shafts of the two driving motors 1418 are connected with a driving gear 1417 through a coupling, and the two driving gears 1417 are respectively engaged with the two transmission gears 1416; the rotating shaft can drive the connecting frame 1406 to rotate to change the direction of the electric telescopic rod 1407, and the electric telescopic rod 1407 can change the height position of the cleaning pipe 1413 and the cleaning brush set 1414.

[0036] Further, such as Fig.10 and Fig.11 As shown, the outer walls of the two electric telescopic rods 1407 are provided with dust filter storage bins 1409, the tops of the two dust filter storage bins 1409 are provided with air pumps 1408, the bottoms of the two dust filter storage bins 1409 are fixedly connected with negative pressure pipes 1410, the input ends of the two negative pressure pipes 1410 are fixedly connected with rotating joints 1415, the two rotating joints 1415 are movably connected with the output ends of the two connecting bins 1411 respectively, and the outer walls of one side of the two connecting bins 1411 are fixedly connected with four cleaning pipe fittings 1413, the outer walls of the multiple cleaning pipe fittings 1413 are sleeved with cleaning brushes 1414, and the outer walls of the multiple cleaning pipe fittings 1413 are opened with multiple negative pressure holes 1412; the air pump 1408 can discharge the gas inside the dust filter storage bin 1409, so that the interior is in a negative pressure state, and then the interior of the connecting bin 1411 is in a negative pressure state through the negative pressure pipe 1410, so that the negative pressure hole 1412 sucks in impurities such as dust.

[0037] When in use, the cleaning auxiliary module 14 can clean the inner ring area of ​​the light source component 55 of the CCD camera mechanism 5 to avoid the accumulation of dust and other impurities in the area after long-term use, thereby avoiding affecting the shooting of the CCD camera body 54, thereby increasing the shooting clarity of the CCD camera body 54, so as to further increase the use effect of the device when in use, and when in use, the cleaning auxiliary module 14 can clean different light sources 55 to increase its cleaning effect, and at the same time, dust and other impurities can be concentrated during cleaning to facilitate centralized processing by the staff.

[0038] Embodiment 3 further optimizes the CCD automatic alignment device of the vertical screen printer provided in Embodiment 1 or 2. Specifically, Fig.12 and Fig.13 As shown, the Z-axis displacement module 9 includes four sliding bottom plates 96, which are respectively fixedly connected to the outer walls of the two sides of the two net frame outer fixed frames 13, and the four sliding bottom plates 96 are provided with front baffle connecting plates 98, screw support plates 94 and motor plates 92, and the four motor plates 92 are fixedly connected with Z-axis servo motors 91, and the output shafts of the four Z-axis servo motors 91 are provided with couplings 93, and the four screw support plates 94 are movably connected with ball screws 95. One end of the four couplings 93 is connected to one end of the four ball screws 95 respectively, and a Z-axis linear guide 913 is provided on each of the four sliding base plates 96. Each Z-axis linear guide 913 is provided with the same X-axis linear guide 97 on the outer wall of the adjacent ball screw 95; the Z-axis servo motor 91 can drive the coupling 93 and the ball screw 95 to operate, so that the X-axis linear guide 97 drives the steering plate 910 to move along the direction of the Z-axis linear guide 913.

[0039] Further, such as Fig.13 As shown, each of the four X-axis linear guide rails 97 is provided with a guide sleeve seat 1, each of the four guide sleeve seats 1 is provided with a guide sleeve 912, each of the four guide sleeves 912 is provided with a thrust ball bearing 911, each of the four thrust ball bearings 911 is provided with a steering plate 910, one side outer wall of the four steering plates 910 is respectively fixedly connected to the outer walls of the two screen fixing frames 12, and each of the four steering plates 910 is provided with a bearing pressure plate 99.

[0040] Further, such as Fig.13 As shown, the X-axis displacement module 10 includes four module base plates 102, and the four module base plates 102 are respectively fixedly connected to the outer walls of the two sides of the two net frame outer fixed frames 13, and the four module base plates 102 are all provided with an X-axis servo motor 101, an X-axis linear guide rail 103 and a lead screw 104, and each X-axis linear guide rail 103 is provided with the same Z-axis linear guide rail 105 on the outer wall of the adjacent lead screw 104, and the four Z-axis linear guide rails 105 are all provided with a guide sleeve seat 105, and the four guide sleeve seats 106 are all provided with a guide sleeve seat 107. There is a guide sleeve 106, and four guide sleeves 106 are each provided with a thrust ball bearing 107, and four thrust ball bearings 107 are each provided with a steering plate 108. One side outer walls of the four steering plates 108 are respectively fixedly connected to the outer walls of the two screen fixing frames 12, and the four steering plates 108 are each provided with a bearing pressure plate 109; the X-axis servo motor 101 can drive the screw rod 104 to operate, so that the Z-axis linear guide 105 drives the steering plate 108 to move along the direction of the X-axis linear guide 103.

[0041] The Z-axis displacement module 9 and the X-axis displacement module 10 realize automatic alignment of the dual screens. When in use, the dual screens can be displaced in four directions to adjust the position of the screen body 11 according to the calibration hole position data of the PCB board body 2 area obtained by the CCD camera mechanism 5, so as to ensure that the position of the screen body 11 corresponds to the PCB board body 2, thereby ensuring the printing accuracy of the PCB board body 2.

[0042] The use process of the CCD automatic alignment device for a vertical screen printer provided by the present invention is as follows: The vertical feeding frame 1 3 and the vertical feeding frame 2 6 are each clamped with a PCB board body 2, and the loading and unloading are alternately conveyed left and right; During loading, the X-axis module 510 is mounted on the Y-axis module 51, and the Y-axis servo motor 56 drives the X-axis module 510 to move forward and backward by servo driving, so as to move the CCD camera body 54 on the Y-axis. Adjustment hand wheels 52 are installed on the left and right sides of the X-axis module 510, and the movement of the CCD camera body 54 on the X-axis is adjusted by adjusting the hand wheels 52 and driving the hand wheels; When adjusting the X-axis, the opening and closing member 1502 is moved, so that the opening and closing member 1502 drives the rotating ring frame 1501 to move, and the opening and closing member 1502 compresses the telescopic spring rod 1505. At the same time, as the opening and closing member 1502 moves, the inclined guide groove 1508 contacts the locking connecting plate, so that the locking connecting plate drives the locking member 1512 to rotate, so that the locking member 1512 is separated from the locking gear ring 1504 for adjustment. Then, it is adjusted to the target position according to the PCB board body 2. At this time, the X-axis module 510 is locked by the handwheel locking module 15; When locking, the opening and closing member 1502 is released, and the telescopic spring rod 1505 is restored, so that the opening and closing member 1502 drives the inclined guide groove 1508 to move, so that the inclined guide groove 1508 and the locking link 1510 are separated. At this time, the pressure spring 1509 drives the locking link 1510 to reset, and the locking member 1512 is quickly engaged with the locking toothed ring 1504 to complete the locking; After locking, there are two movable sliders on the left and right of the X-axis module 510, each of which is equipped with a Z-axis profile 57, and the upper and lower ends of the profile are equipped with a Z-axis manual translation stage 58 and a translation stage rack 59, and the manual translation stage 58 is equipped with a CCD camera body 54 and a light source 55. The Z-axis manual translation stage 58 can be fine-tuned in the Z-axis direction through the translation stage rack 59, and the CCD camera body 54 can take pictures after adjustment; Afterwards, the Z-axis servo motor 91 can drive the coupling 93 and the ball screw 95 to operate, so that the X-axis linear guide 1 97 drives the steering plate 1 910 to move along the direction of the Z-axis linear guide 1 913, so as to adjust the displacement of the screen body 11 on both sides of the direction, and the X-axis servo motor 101 can drive the screw member 104 to operate, so that the Z-axis linear guide 2 105 drives the steering plate 2 108 to move along the direction of the X-axis linear guide 2 103, so as to adjust the displacement of the screen body 11 on both sides of the direction, so that the screen body 11 can be displaced in four directions, so that the position of the screen body 11 corresponds to the position of the PCB board body 2, so as to perform printing; When in use, start the adjustment motor 1403, which can drive the connecting shaft 1402 and the mounting connecting plate 1404 to rotate, so that the mounting connecting plate 1404 is unfolded, and after unfolding, start the stepper motor 1405, and adjust the angle of the connecting frame 1 1406 through the stepper motor 1405, so as to change the direction of the electric telescopic rod 1407, and then start the electric telescopic rod 1407, so that the electric telescopic rod 1407 drives the connecting frame 2 1419 and the connecting chamber 1411 to move so that they correspond to the inner ring of the light source component 55, and then adjust the position of the light source component 55 through the Y-axis servo motor 56, so that the cleaning pipe 1413 is located at the inner ring of the light source component 55, and then start the air pump 1408 and the drive The driving motor 1418 drives the driving gear 1417 to rotate. Since the driving gear 1417 is meshed with the transmission gear 1416, the driving motor 1418 can drive the connecting bin 1411 to rotate, and then the connecting bin 1411 drives the cleaning pipe 1413 and the cleaning brush 1414 to clean the inner ring area of ​​the light source 55. At the same time, the air pump 1408 can discharge the gas inside the dust filter storage bin 1409 to make the inside of it a negative pressure state, and then the inside of the connecting bin 1411 is in a negative pressure state through the negative pressure pipe 1410, so that the negative pressure hole 1412 can suck in impurities such as dust, and further transport them to the dust filter storage bin 1409 for concentration, so as to facilitate subsequent processing.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A CCD automatic alignment device for a vertical screen printer, characterized in that: It comprises a mounting plate seat (1), two mounting plate seats (1) are provided with two double conveying guide rails (4), and the two double conveying guide rails (4) are respectively provided with a first vertical material feeding frame (3) and a second vertical material feeding frame (6), a PCB board body (2) is provided on the first vertical material feeding frame (3), a CCD camera mechanism (5) is provided on one of the mounting plate seats (1), and a first vertical screen frame alignment mechanism (7) and a second vertical screen frame alignment mechanism (8) are provided on the other mounting plate seat (1); The vertical screen frame alignment mechanism 1 (7) and the vertical screen frame alignment mechanism 2 (8) both comprise a screen frame outer fixing frame (13), the two screen frame outer fixing frames (13) are respectively located on both sides of the vertical feeding frame 2 (6), the two screen frame outer fixing frames (13) are both provided with a screen plate fixing frame (12), the two screen plate fixing frames (12) are both provided with a screen plate body (11), and the two screen frame outer fixing frames (13) are provided with a Z-axis displacement module (9) and an X-axis displacement module (10); The CCD camera mechanism (5) comprises a Y-axis module (51), the Y-axis module (51) being located on one side of the PCB board body (2), the Y-axis module (51) being provided with a cleaning auxiliary module (14), and the Y-axis module (51) being provided with an X-axis module (510), the X-axis module (510) being provided with an X-axis screw rod (512), both ends of the X-axis screw rod (512) being provided with adjusting hand wheels (52), and the two adjusting hand wheels (52) being provided with hand wheel locking modules (15).

2. The CCD automatic alignment device for a vertical screen printer according to claim 1, characterized in that: The CCD camera mechanism (5) further comprises a mounting frame (53), the mounting frame (53) being fixedly connected to the top of one of the mounting plate seats (1), the Y-axis module (51) being fixedly connected to the top of the mounting frame (53), a Y-axis servo motor (56) being arranged on one side outer wall of the Y-axis module (51), the output shaft of the Y-axis servo motor (56) being connected to the Y-axis screw rod (511) via a coupling, the X-axis module (510) being movably connected to the outer wall of the Y-axis screw rod (511), and two Z-axis profiles (57) being arranged on the X-axis module (510) and the X-axis screw rod (512), two displacement stage racks (59) being arranged on the two Z-axis profiles (57), manual displacement stages (58) being arranged on the four displacement stage racks (59), and CCD camera bodies (54) and light source components (55) being arranged on the four manual displacement stages (58).

3. The CCD automatic alignment device for a vertical screen printer according to claim 1, characterized in that: The handwheel locking module (15) comprises two handwheel connecting rods (1507), the two handwheel connecting rods (1507) are respectively fixedly connected to the two adjusting handwheels (52), the outer walls of the two handwheel connecting rods (1507) are fixedly connected to the mounting brackets (1506), the two mounting brackets (1506) are movably connected to the shaft rods (1511), the outer walls of the two shaft rods (1511) are fixedly connected to the locking connecting rods (1510), one end of the two locking connecting rods (1510) is fixedly connected to the locking member (1512), and the outer walls on both sides of the X-axis module (510) are fixedly connected to the annular brackets (1503), and the two annular brackets (1503) are sleeved on the outside of the X-axis screw rod (512).

4. The CCD automatic alignment device for a vertical screen printer according to claim 3, characterized in that: The outer walls of the two annular brackets (1503) are fixedly connected with locking toothed rings (1504), the two locking members (1512) are respectively engaged with the two locking toothed rings (1504), the two handwheel connecting rods (1507) are fixedly connected with pressure springs (1509), one end of the two pressure springs (1509) is respectively fixedly connected with the outer walls of one side of the two locking connecting rods (1510), and the outer walls of the two handwheel connecting rods (1507) are movably connected with opening and closing members (1502 ), the interiors of the two opening and closing members (1502) are provided with oblique guide grooves (1508), the outer walls of the two locking connecting rods (1510) are respectively in contact with the inner walls of the two oblique guide grooves (1508), the outer walls of the two opening and closing members (1502) are movably connected to the rotating ring frame (1501), the two adjusting hand wheels (52) are fixedly connected to the telescopic spring rods (1505), and one end of the two telescopic spring rods (1505) is respectively fixedly connected to the outer wall of one side of the two opening and closing members (1502).

5. The CCD automatic alignment device for a vertical screen printer according to claim 1, characterized in that: The cleaning auxiliary module (14) comprises two fixed frames (1401), the two fixed frames (1401) are respectively fixedly connected to the outer walls on both sides of the Y-axis module (51), the two fixed frames (1401) are movably connected to connecting shafts (1402), the outer walls of the two connecting shafts (1402) are fixedly connected to mounting connecting plates (1404), the two mounting connecting plates (1404) are movably connected to rotating shafts, and the outer walls of one side of the two mounting connecting plates (1404) are fixedly connected to stepper motors (1405), the output shafts of the two stepper motors (1405) are respectively connected to one end of the two rotating shafts through couplings, the bottoms of the two fixed frames (1401) are fixedly connected to adjusting motors (1403), and the output shafts of the two adjusting motors (1403) are respectively connected to the bottom ends of the two connecting shafts (1402) through couplings.

6. The CCD automatic alignment device for a vertical screen printer according to claim 5, characterized in that: The outer walls of the two rotating shafts are fixedly connected to a connecting frame 1 (1406), the two connecting frames 1 (1406) are fixedly connected to an electric telescopic rod (1407), the output ends of the two electric telescopic rods (1407) are fixedly connected to a connecting frame 2 (1419), the two connecting frames 2 (1419) are movably connected to a connecting bin (1411), the outer walls of the two connecting bins (1411) are fixedly connected to a transmission gear (1416), and the two connecting frames 2 (1419) are fixedly connected to a driving motor (1418), the output shafts of the two driving motors (1418) are connected to a driving gear (1417) via a coupling, and the two driving gears (1417) are respectively meshed with the two transmission gears (1416).

7. The CCD automatic alignment device for a vertical screen printer according to claim 6, characterized in that: The outer walls of the two electric telescopic rods (1407) are both provided with dust filter storage bins (1409), the tops of the two dust filter storage bins (1409) are both provided with air pumps (1408), the bottoms of the two dust filter storage bins (1409) are both fixedly connected with negative pressure pipes (1410), the input ends of the two negative pressure pipes (1410) are both fixedly connected with rotating joints (1415), the two rotating joints (1415) are respectively movably connected with the output ends of the two connecting bins (1411), and the outer walls of one side of the two connecting bins (1411) are both fixedly connected with four cleaning pipe fittings (1413), the outer walls of the multiple cleaning pipe fittings (1413) are each sleeved with a cleaning brush (1414), and the outer walls of the multiple cleaning pipe fittings (1413) are each opened with multiple negative pressure holes (1412).

8. The CCD automatic alignment device for a vertical screen printer according to claim 1, characterized in that: The Z-axis displacement module (9) comprises four sliding base plates (96), the four sliding base plates (96) being fixedly connected to the outer walls of both sides of two net frame outer fixed frames (13), the four sliding base plates (96) being provided with a front baffle connecting plate (98), a screw support plate (94) and a motor plate (92), the four motor plates (92) being fixedly connected to the Z-axis servo motors (91), the output shafts of the four Z-axis servo motors (91) being provided with couplings (93), and the four screw support plates (94) being movably connected to ball screws (95), one end of the four couplings (93) being connected to one end of the four ball screws (95), respectively, and the four sliding base plates (96) being provided with a Z-axis linear guide rail (913), and each Z-axis linear guide rail (913) being provided with the same X-axis linear guide rail (97) on the outer wall of the adjacent ball screw (95).

9. The CCD automatic alignment device for a vertical screen printer according to claim 8, characterized in that: A guide sleeve seat 1 is provided on each of the four X-axis linear guide rails 1 (97), a guide sleeve 1 (912) is provided on each of the four guide sleeve seats 1, a thrust ball bearing 1 (911) is provided on each of the four guide sleeves 1 (912), a steering plate 1 (910) is provided on each of the four thrust ball bearings 1 (911), one side outer wall of the four steering plates 1 (910) is respectively fixedly connected to the outer walls of the two screen fixing frames (12), and a bearing pressure plate 1 (99) is provided on each of the four steering plates 1 (910).

10. The CCD automatic alignment device for a vertical screen printer according to claim 1, characterized in that: The X-axis displacement module (10) comprises four module base plates (102), the four module base plates (102) being respectively fixedly connected to the outer walls of two sides of the two net frame outer fixing frames (13), the four module base plates (102) being each provided with an X-axis servo motor (101), an X-axis linear guide rail (103) and a lead screw (104), each X-axis linear guide rail (103) being provided with the same Z-axis linear guide rail (105) on the outer wall of the adjacent lead screw (104), and the four A guide sleeve seat 2 is provided on each of the two Z-axis linear guide rails (105), a guide sleeve 2 (106) is provided on each of the four guide sleeve seats 2, a thrust ball bearing 2 (107) is provided on each of the four guide sleeves 2 (106), a steering plate 2 (108) is provided on each of the four thrust ball bearings 2 (107), one side outer wall of each of the four steering plates 2 (108) is fixedly connected to the outer walls of the two screen fixing frames (12), and a bearing pressure plate 2 (109) is provided on each of the four steering plates 2 (108).

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