A CCD automatic alignment device for a vertical screen printing machine

Abstract

The present application provides a CCD automatic alignment device for a vertical screen printer, which relates to the field of circuit board production. It includes a mounting plate base. Two conveying double guide rails are arranged on the two mounting plate bases, and a vertical feeding frame one and a vertical feeding frame two are respectively arranged on the two conveying double guide rails. A PCB board body is arranged on the vertical feeding frame one. A CCD camera mechanism is arranged on one of the mounting plate bases. The present application is provided with a CCD camera mechanism, which solves the problem of alignment of the vertical printer. After taking pictures of the calibration hole positions in the PCB board area by four or two diagonal cameras for the PCB board, it automatically finds the target holes, and controls the front and rear symmetric screen frames to automatically adjust the positions to align with the screen pattern through algorithm software, realizing high-precision printing. At the same time, when the CCD camera mechanism is running and in use, the handwheel locking module can quickly lock the handwheel after adjusting the handwheel, avoiding the occurrence of the situation of position deviation during adjustment, and further improving the printing accuracy.

Description

Technical Field

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

[0002] Nowadays, screen printing technology has achieved digitization and automation. As a representative of it, the vertical screen printer 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; its working principle is that when the shutter is pressed, the CCD sensor captures light and converts it into electrical signals, which are processed through a series of complex processes and finally presented as photos or videos.

[0004] In the field of PCB solder mask printing, the current mainstream printing method uses a horizontal printing method. The PCB board is placed on the surface of a horizontal automatic alignment platform, the screen is above the PCB board surface, and the CCD camera is below the PCB board alignment platform. This alignment method is difficult to adapt in a vertical printing scheme, which is not conducive to the CCD camera to determine the position of the calibration holes in the PCB board area, thereby affecting the printing accuracy.

[0005] Therefore, we make improvements on this and propose a CCD automatic alignment device for a vertical screen printer. Summary of the Invention

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

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

[0008] Specifically, this application is as follows:

[0009] It includes a mounting plate base. Two conveying double guide rails are arranged on the two mounting plate bases, and a vertical feeding frame one and a vertical feeding frame two are respectively arranged on the two conveying double guide rails. A PCB board body is arranged on the vertical feeding frame one. A CCD camera mechanism is arranged on one of the mounting plate bases, and a vertical screen frame alignment mechanism one and a vertical screen frame alignment mechanism two are arranged on the other mounting plate base;

[0010] The vertical screen frame alignment mechanism 1 and the vertical screen frame alignment mechanism 2 both include an outer fixed frame of the screen frame. The two outer fixed frames of the screen frame are respectively located on both sides of the vertical feeding frame 2. Screen plate fixed frames are arranged on both of the two outer fixed frames of the screen frame. Screen plate bodies are arranged on both of the two screen plate fixed frames. And a Z-axis displacement module and an X-axis displacement module are arranged on the two outer fixed frames of the screen frame;

[0011] The CCD camera mechanism includes a Y-axis module. The Y-axis module 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 lead screw is arranged on the X-axis module. Adjusting handwheels are arranged at both ends of the X-axis lead screw. A handwheel locking module is arranged on the two adjusting handwheels.

[0012] As a preferred technical solution of the present application, the CCD camera mechanism further includes a mounting bracket. The mounting bracket is fixedly connected to the top of one of the mounting plate seats. The Y-axis module is fixedly connected to the top of the mounting bracket. A Y-axis servo motor is arranged on the outer wall of one side of the Y-axis module. The output shaft of the Y-axis servo motor is connected to a Y-axis lead screw through a coupling. The X-axis module is movably connected to the outer wall of the Y-axis lead screw. And two Z-axis profiles are arranged on the X-axis module and the X-axis lead screw. Two displacement table racks are arranged on both of the two Z-axis profiles. Manual displacement tables are arranged on the four displacement table racks. CCD camera bodies and light source components are arranged on the four manual displacement tables.

[0013] As a preferred technical solution of the present application, the handwheel locking module includes two handwheel connecting rods. The two handwheel connecting rods are respectively fixedly connected to the two adjusting handwheels. Mounting brackets are fixedly connected to the outer walls of the two handwheel connecting rods. Shaft rods are movably connected to both of the two mounting brackets. Locking connecting rods are fixedly connected to the outer walls of the two shaft rods. Locking pieces are fixedly connected to one ends of the two locking connecting rods. And annular brackets are fixedly connected to the outer walls on both sides of the X-axis module. The two annular brackets are sleeved on the outside of the X-axis lead screw.

[0014] As a preferred technical solution of the present application, locking tooth rings are fixedly connected to the outer walls of the two annular brackets. The two locking pieces are respectively clamped with the two locking tooth rings. Pressure springs are fixedly connected to the two handwheel connecting rods. One ends of the two pressure springs are respectively fixedly connected to the outer walls on one side of the two locking connecting rods. And opening and closing pieces are movably connected to the outer walls of the two handwheel connecting rods. Oblique guide grooves are respectively formed in the interiors of the two opening and closing pieces. The outer walls of the two locking connecting rods are respectively in contact with the inner walls of the two oblique guide grooves. Rotating ring frames are movably connected to the outer walls of the two opening and closing pieces. Telescopic spring rods are fixedly connected to the two adjusting handwheels. One ends of the two telescopic spring rods are respectively fixedly connected to the outer walls on one side of the two opening and closing pieces.

[0015] As a preferred technical solution of the present application, the cleaning auxiliary module includes two fixed frame members, the two fixed frame members are respectively fixedly connected to the outer walls on both sides of the Y-axis module, connection shaft rods are movably connected to the two fixed frame members, mounting connection plates are fixedly connected to the outer walls of the two connection shaft rods, rotating shafts are movably connected to the two mounting connection plates, and stepping motors are fixedly connected to the outer walls of one side of the two mounting connection plates. The output shafts of the two stepping motors are respectively connected to one ends of the two rotating shafts through couplings. Adjusting motors are fixedly connected to the bottoms of the two fixed frame members, and the output shafts of the two adjusting motors are respectively connected to the bottom ends of the two connection shaft rods through couplings.

[0016] As a preferred technical solution of the present application, connection frame one is fixedly connected to the outer walls of the two rotating shafts, electric telescopic rods are fixedly connected to the two connection frame one, connection frame two is fixedly connected to the output ends of the two electric telescopic rods, communicating bins are movably connected to the two connection frame two, transmission gears are fixedly connected to the outer walls of the two communicating bins, and drive motors are fixedly connected to the two connection frame two. The output shafts of the two drive motors are respectively connected with drive gears through couplings, and the two drive gears are respectively meshed with the two transmission gears.

[0017] As a preferred technical solution of the present application, dust filtering storage bins are arranged on the outer walls of the two electric telescopic rods, air pumps are arranged on the tops of the two dust filtering storage bins, negative pressure pipes are fixedly connected to the bottoms of the two dust filtering storage bins, rotating joints are fixedly connected to the input ends of the two negative pressure pipes, the two rotating joints are respectively movably connected to the output ends of the two communicating bins, and four cleaning pipe fittings are fixedly connected to the outer walls of one side of the two communicating bins. Cleaning sleeve brushes are sleeved on the outer walls of the plurality of cleaning pipe fittings, and a plurality of negative pressure holes are opened on the outer walls of the plurality of cleaning pipe fittings.

[0018] As a preferred technical solution of the present application, the Z-axis displacement module includes four sliding bottom plates, the four sliding bottom plates are respectively fixedly connected to the outer walls on both sides of the two outer fixed frames of the mesh frame, front baffle connection plates, screw rod support plates and motor plates are arranged on the four sliding bottom plates, Z-axis servo motors are fixedly connected to the four motor plates, coupling joints are arranged on the output shafts of the four Z-axis servo motors, ball screws are movably connected to the four screw rod support plates, one ends of the four coupling joints are respectively connected to one ends of the four ball screws, Z-axis linear guide rails one are arranged on the four sliding bottom plates, and each Z-axis linear guide rail one and the outer wall of the adjacent ball screw are provided with the same X-axis linear guide rail one.

[0019] As a preferred technical solution of the present application, guide sleeve seats I are provided on each of the four X-axis linear guide rails I, guide sleeves I are provided on each of the four guide sleeve seats I, thrust ball bearings I are provided on each of the four guide sleeves I, steering plates I are provided on each of the four thrust ball bearings I, the outer walls of one sides of the four steering plates I are respectively fixedly connected to the outer walls of two screen printing frame fixing frames, and bearing pressing plates I are provided on each of the four steering plates I.

[0020] As a preferred technical solution of the present application, the X-axis displacement module includes four module bottom plates which are respectively fixedly connected to the outer walls of two sides of the outer fixing frames of the two screen frames. X-axis servo motors, X-axis linear guide rails II and screw rod members are provided on each of the four module bottom plates. Each X-axis linear guide rail II and the outer wall of the adjacent screw rod member are provided with the same Z-axis linear guide rail II. Guide sleeve seats II are provided on each of the four Z-axis linear guide rails II, guide sleeves II are provided on each of the four guide sleeve seats II, thrust ball bearings II are provided on each of the four guide sleeves II, steering plates II are provided on each of the four thrust ball bearings II, the outer walls of one sides of the four steering plates II are respectively fixedly connected to the outer walls of two screen printing frame fixing frames, and bearing pressing plates II are provided on each of the four steering plates II.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] In the solution of the present application:

[0023] 1. To solve the problem that in the prior art, the PCB board is placed on the horizontal automatic alignment platform surface, the screen is above the PCB board surface, and the CCD camera is below the PCB board alignment platform. This alignment method is difficult to adapt in the vertical printing scheme, which is not conducive to the CCD camera to determine the position of the calibration holes in the PCB board area, thereby affecting the printing accuracy. In the present application, through the provided CCD camera mechanism, the alignment problem of the vertical printing machine is solved, and double-sided screen automatic alignment printing can be completed synchronously at one time. And when loading materials on the vertical screen printing machine, a CCD camera body is provided. After taking pictures of the calibration holes in the PCB board area by four or two diagonal cameras of the PCB board, the target holes are automatically searched, and the front and rear symmetrical screen frames are automatically adjusted in position to align with the screen pattern through algorithm software control, realizing high-precision printing. At the same time, when the CCD camera mechanism is running and used, servo drive and handwheel drive are used in cooperation for position adjustment. During this process, adjustment needs to be made through the adjustment handwheel. Therefore, through the handwheel locking module, the adjustment handwheel can be quickly locked after use to avoid the situation that during the traditional handwheel locking process, the staff is prone to accidentally touch the handwheel and cause the adjustment position to shift, thereby increasing the data accuracy of the CCD camera mechanism and further improving the printing accuracy;

[0024] 2. Through the provided cleaning auxiliary module, when in use, the cleaning auxiliary module can clean the inner ring area of the light source part of the CCD camera mechanism, so as to avoid the accumulation of dust and other impurities in this area after long-term use, thereby preventing the shooting of the CCD camera body from being affected, increasing the shooting clarity of the CCD camera body, further enhancing the usage effect of the device during use, and when in use, the cleaning auxiliary module can clean different light source parts, improving its cleaning effect. At the same time, during cleaning, it can concentrate dust and other impurities, facilitating centralized handling by staff, solving the problem in the prior art that the accumulation of dust and other impurities affects shooting.

[0025] 3. Through the provided Z-axis displacement module and X-axis displacement module, automatic double-screen alignment is achieved. When in use, the double screen can be displaced in four directions to adjust the position of the screen body according to the position data of the calibration holes in the PCB board body area obtained by the CCD camera mechanism, so as to ensure the correspondence between the screen body and the PCB board body, and further ensure the printing accuracy of the PCB board body. Brief Description of the Drawings

[0026] Figure 1 Structural schematic diagram of the vertical screen printer CCD automatic alignment device provided by this application;

[0027] Figure 2 Side view structural schematic diagram of the vertical screen printer CCD automatic alignment device provided by this application;

[0028] Figure 3 Structural schematic diagram of the CCD camera mechanism of the vertical screen printer CCD automatic alignment device provided by this application;

[0029] Figure 4 Provided by this application Figure 3 Front view structural schematic diagram;

[0030] Figure 5 Combined structural schematic diagram of the cleaning auxiliary module and the handwheel locking module of the vertical screen printer CCD automatic alignment device provided by this application;

[0031] Figure 6 Provided by this application Figure 5 Front view structural schematic diagram;

[0032] Figure 7 Combined structural schematic diagram of the rotating ring frame and the opening and closing parts of the vertical screen printer CCD automatic alignment device provided by this application;

[0033] Figure 8 Structural schematic diagram of the handwheel locking module of the vertical screen printer CCD automatic alignment device provided by this application;

[0034] Figure 9Schematic diagram of the combined structure of the pressure spring and the locking link of the CCD automatic alignment device for the vertical screen printing machine provided by this application;

[0035] Figure 10 Schematic diagram of the cleaning auxiliary module structure of the CCD automatic alignment device for the vertical screen printing machine provided by this application;

[0036] Figure 11 Provided by this application Figure 10 Schematic diagram of the enlarged structure of part A in

[0037] Figure 12 Schematic diagram of the combined structure of the screen printing plate body and the screen printing plate fixing frame of the CCD automatic alignment device for the vertical screen printing machine provided by this application;

[0038] Figure 13 Schematic diagram of the Z-axis displacement module and the X-axis displacement module of the CCD automatic alignment device for the vertical screen printing machine provided by this application.

[0039] Indicated in the figure:

[0040] 1. Mounting plate base; 2. PCB board body; 3. Vertical feeding frame 1; 4. Conveyor double guide rails; 5. CCD camera mechanism; 51. Y-axis module; 52. Adjusting handwheel; 53. Mounting bracket; 54. CCD camera body; 55. Light source component; 56. Y-axis servo motor; 57. Z-axis profile; 58. Manual displacement table; 59. Displacement table rack; 510. X-axis module; 511. Y-axis lead screw; 512. X-axis lead screw; 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 board; 93. Coupling; 94. Lead screw support plate; 95. Ball screw; 96. Sliding bottom plate; 97. X-axis linear guide rail 1; 98. Front baffle connecting 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 bottom plate; 103. X-axis linear guide rail 2; 104. Lead screw part; 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. Outer screen frame fixing frame; 14. Cleaning auxiliary module; 1401. Fixed frame part; 1402. Connecting shaft rod; 1403. Adjusting motor; 1404. Mounting connecting plate; 1405. Stepper motor; 1406. Connecting frame 1; 1407. Electric telescopic rod; 1408. Air pump; 1409. Dust filtering storage bin; 1410. Negative pressure pipe; 1411. Connecting bin; 1412. Negative pressure hole; 1413. Cleaning pipe part; 1414. Cleaning brush sleeve; 1415. Rotating joint; 1416. Transmission gear; 1417. Driving gear; 1418. Driving motor; 1419. Connecting frame 2; 15. Handwheel locking module; 1501. Rotating ring frame; 1502. Opening and closing part; 1503. Ring-shaped bracket; 1504. Locking tooth 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 part; 1512. Locking part. Detailed implementation manner

[0041] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0042] As described in the background art, the PCB board is placed on the tabletop of the horizontal automatic alignment platform, the screen printing plate is above the PCB board surface, and the CCD camera is below the PCB board alignment platform. This alignment method is difficult to adapt in the vertical printing scheme, which is not conducive to the CCD camera to determine the position of the calibration holes in the PCB board area, thereby affecting the printing accuracy.

[0043] To solve this technical problem, the present invention provides a CCD automatic alignment device for a vertical screen printer, which is applied to the CCD automatic alignment of the PCB board.

[0044] Specifically, please refer to Figures 1 - 13 , the CCD automatic alignment device for the vertical screen printer specifically includes:

[0045] The mounting plate base 1, two conveying double guide rails 4 are arranged on the two mounting plate bases 1, and a vertical feeding frame one 3 and a vertical feeding frame two 6 are respectively arranged on the two conveying double guide rails 4. The PCB board body 2 is arranged on the vertical feeding frame one 3. A CCD camera mechanism 5 is arranged on one of the mounting plate bases 1, and a vertical screen frame alignment mechanism one 7 and a vertical screen frame alignment mechanism two 8 are arranged on the other mounting plate base 1;

[0046] Both the vertical screen frame alignment mechanism one 7 and the vertical screen frame alignment mechanism two 8 include a screen frame outer fixed frame 13. The two screen frame outer fixed frames 13 are respectively located on both sides of the vertical feeding frame two 6. A screen printing plate fixed frame 12 is arranged on each of the two screen frame outer fixed frames 13. A screen printing plate body 11 is arranged on each of the two screen printing plate fixed frames 12, and a Z-axis displacement module 9 and an X-axis displacement module 10 are arranged on the two screen frame outer fixed frames 13;

[0047] The CCD camera mechanism 5 includes a Y-axis module 51. The Y-axis module 51 is located on one side of the PCB board body 2. A cleaning auxiliary module 14 is arranged on the Y-axis module 51, and an X-axis module 510 is arranged on the Y-axis module 51. An X-axis lead screw 512 is arranged on the X-axis module 510. Adjusting handwheels 52 are arranged at both ends of the X-axis lead screw 512, and a handwheel locking module 15 is arranged on the two adjusting handwheels 52.

[0048] The automatic CCD alignment device for a vertical screen printer provided by the present invention is provided with a CCD camera mechanism 5, which solves the problem of alignment of a vertical printer. After taking pictures of the calibration hole positions in the PCB board area by four or two diagonal cameras for the PCB board, it automatically finds the target holes, and controls the front and rear symmetric screen frames to automatically adjust their positions to align with the screen pattern through algorithm software, achieving high-precision printing. At the same time, when the CCD camera mechanism 5 is in operation, the handwheel locking module 15 can quickly lock the adjusting handwheel 52 after its use, avoiding the occurrence of position deviation during adjustment, thereby increasing the data accuracy of the CCD camera mechanism 5 and further improving the printing accuracy; the vertical feeding frame 1 3 and the vertical feeding frame 2 6 achieve double-station alternating loading and unloading, 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 during use, so as to avoid the accumulation of dust and other impurities in this area after long-term use, and thus avoid affecting the shooting of the CCD camera body 54; the Z-axis displacement module 9 and the X-axis displacement module 10 achieve automatic alignment of double screen plates. During use, the double screen plates can be displaced in four directions, thereby ensuring the printing accuracy of the PCB board body 2.

[0049] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0050] It should be noted that, without conflict, the embodiments in the present invention and the features and technical solutions in the embodiments can be combined with each other.

[0051] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0052] Example 1, please refer to Figures 1 - 9, A CCD automatic alignment device for a vertical screen printer. The CCD camera mechanism 5 of it further includes a mounting bracket 53. The mounting bracket 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 bracket 53. A Y-axis servo motor 56 is arranged on the outer wall of one side of the Y-axis module 51. The output shaft of the Y-axis servo motor 56 is connected to a Y-axis lead screw 511 through a coupling. The X-axis module 510 is movably connected to the outer wall of the Y-axis lead screw 511. And two Z-axis profiles 57 are arranged on the X-axis module 510 and the X-axis lead screw 512. Two displacement table racks 59 are arranged on each of the two Z-axis profiles 57. A manual displacement table 58 is arranged on each of the four displacement table racks 59. A CCD camera body 54 and a light source member 55 are arranged on each of the four manual displacement tables 58. The Y-axis module 51 and the X-axis module 510 can move the CCD camera body 54 in the X-axis and Y-axis directions, and adopt two methods of servo drive and handwheel drive. The manual displacement table 58 and the displacement table rack 59 can further adjust the position of the CCD camera body 54.

[0053] It solves the problem of alignment of the vertical printer, can complete the automatic alignment printing of double-sided screen plates synchronously at one time, and a CCD camera body 54 is arranged while loading materials on the vertical screen printer. After taking pictures of the calibration hole positions in the PCB board area through four or two diagonal cameras for the PCB board, it automatically finds the target holes, and controls the front and rear symmetric screen frames to automatically adjust the positions to align with the screen plate pattern through algorithm software, realizing highly accurate printing.

[0054] Please refer to Figures 7 - 9 , A CCD automatic alignment device for a vertical screen printer. Its handwheel locking module 15 includes two handwheel connecting rods 1507. The two handwheel connecting rods 1507 are respectively fixedly connected to two adjusting handwheels 52. Mounting brackets 1506 are fixedly connected to the outer walls of the two handwheel connecting rods 1507. Shaft rods 1511 are movably connected to each of the two mounting brackets 1506. Locking connecting rods 1510 are fixedly connected to the outer walls of the two shaft rods 1511. Locking members 1512 are fixedly connected to one ends of the two locking connecting rods 1510. And annular brackets 1503 are fixedly connected to the outer walls on both sides of the X-axis module 510. The two annular brackets 1503 are sleeved on the outside of the X-axis lead screw 512. The locking connecting rod 1510 can drive the locking member 1512 to be engaged with the locking gear ring 1504 for locking.

[0055] Please refer to Figures 7 - 9, A CCD automatic alignment device for a vertical screen printing machine. Locking gear rings 1504 are fixedly connected to the outer walls of two annular brackets 1503. Two locking members 1512 are respectively engaged with the two locking gear rings 1504. Pressure springs 1509 are fixedly connected to both handwheel link rods 1507. One ends of the two pressure springs 1509 are respectively fixedly connected to the outer walls of one sides of the two locking link rods 1510. And opening and closing members 1502 are movably connected to the outer walls of both handwheel link rods 1507. Oblique guide grooves 1508 are provided inside the two opening and closing members 1502. The outer walls of the two locking link rods 1510 are respectively in contact with the inner walls of the two oblique guide grooves 1508. Rotating ring frames 1501 are movably connected to the outer walls of both opening and closing members 1502. Telescopic spring rods 1505 are fixedly connected to both adjusting handwheels 52. One ends of the two telescopic spring rods 1505 are respectively fixedly connected to the outer walls of one sides of the two opening and closing members 1502; when the opening and closing member 1502 moves, the telescopic spring rod 1505 is compressed. As the opening and closing member 1502 moves, the oblique guide groove 1508 will compress the pressure spring 1509, so that the locking link rod 1510 drives the locking member 1512 to separate from the locking gear ring 1504.

[0056] When the CCD camera mechanism 5 operates, servo drive and handwheel drive are used in cooperation for position adjustment. During this process, adjustment needs to be carried out through the adjusting handwheel 52. Therefore, the handwheel locking module 15 can quickly lock the adjusting handwheel 52 after it is used, so as to avoid the situation that during the traditional handwheel locking process, the staff is prone to accidentally touch the handwheel and cause the adjustment position to shift, thereby increasing the data accuracy of the CCD camera mechanism 5 and further improving the printing accuracy.

[0057] Embodiment 2 further optimizes the vertical screen printing machine CCD automatic alignment device provided in Embodiment 1. Specifically, as Figure 5 , Figure 6 , Figure 10 and Figure 11 shown, the cleaning auxiliary module 14 includes two fixed frame members 1401. The two fixed frame members 1401 are respectively fixedly connected to the outer walls on both sides of the Y-axis module 51. Connecting shaft rods 1402 are movably connected to the two fixed frame members 1401. Mounting connecting plates 1404 are fixedly connected to the outer walls of the two connecting shaft rods 1402. Rotating shafts are movably connected to the two mounting connecting plates 1404. And stepping motors 1405 are fixedly connected to the outer walls of one sides of the two mounting connecting plates 1404. The output shafts of the two stepping motors 1405 are respectively connected to one ends of the two rotating shafts through couplings. Adjusting motors 1403 are fixedly connected to the bottoms of the two fixed frame members 1401. The output shafts of the two adjusting motors 1403 are respectively connected to the bottom ends of the two connecting shaft rods 1402 through couplings; the stepping motor 1405 can drive the rotating shaft to rotate, and the adjusting motor 1403 can drive the mounting connecting plate 1404 to rotate through the connecting shaft rod 1402.

[0058] Further, as Figure 10 and Figure 11 shown, connection frames 1406 are fixedly connected to the outer walls of both rotating shafts. Electric telescopic rods 1407 are fixedly connected to both connection frames 1406. Output ends of both electric telescopic rods 1407 are fixedly connected to connection frames 1419. Communication bins 1411 are movably connected to both connection frames 1419. Transmission gears 1416 are fixedly connected to the outer walls of both communication bins 1411. Driving motors 1418 are fixedly connected to both connection frames 1419. Output shafts of both driving motors 1418 are connected to driving gears 1417 through couplings. The two driving gears 1417 are respectively meshed with the two transmission gears 1416; the rotating shafts can drive the connection frames 1406 to rotate to change the orientation of the electric telescopic rods 1407, and the electric telescopic rods 1407 can change the height positions of the cleaning pipe fittings 1413 and the cleaning brush sleeves 1414.

[0059] Further, as Figure 10 and Figure 11 shown, dust filtering storage bins 1409 are arranged on the outer walls of both electric telescopic rods 1407. Air pumps 1408 are arranged on the tops of both dust filtering storage bins 1409. Negative pressure pipes 1410 are fixedly connected to the bottoms of both dust filtering storage bins 1409. Rotating joints 1415 are fixedly connected to the input ends of both negative pressure pipes 1410. The two rotating joints 1415 are respectively movably connected to the output ends of the two communication bins 1411. Four cleaning pipe fittings 1413 are fixedly connected to one side outer wall of both communication bins 1411. Cleaning brush sleeves 1414 are sleeved on the outer walls of multiple cleaning pipe fittings 1413. Multiple negative pressure holes 1412 are formed in the outer walls of multiple cleaning pipe fittings 1413; the air pumps 1408 can discharge the gas inside the dust filtering storage bins 1409 to make the inside in a negative pressure state, and then make the inside of the communication bins 1411 in a negative pressure state through the negative pressure pipes 1410, so that the negative pressure holes 1412 can suck in dust and other impurities.

[0060] When in use, the cleaning auxiliary module 14 can clean the inner ring area of the light source part 55 of the CCD camera mechanism 5, so as to avoid the accumulation of dust and other impurities in this area after long-term use, and further avoid affecting the shooting of the CCD camera body 54, thereby increasing the shooting clarity of the CCD camera body 54, further increasing the use effect of the device during use, and the cleaning auxiliary module 14 can clean different light source parts 55 during use to increase its cleaning effect. At the same time, the dust and other impurities can be concentrated during cleaning, which is convenient for the staff to conduct centralized treatment.

[0061] Embodiment 3 further optimizes the CCD automatic alignment device of the vertical screen printing machine provided in Embodiment 1 or 2. Specifically, as Figure 12 and Figure 13 shown, the Z-axis displacement module 9 includes four sliding bottom plates 96, and the four sliding bottom plates 96 are respectively fixedly connected to the outer side walls of the two screen frame outer fixing frames 13. Front stop connecting plates 98, screw rod support plates 94 and motor plates 92 are arranged on the four sliding bottom plates 96. Z-axis servo motors 91 are fixedly connected to the four motor plates 92. Couplings 93 are arranged on the output shafts of the four Z-axis servo motors 91. Ball screw rods 95 are movably connected to the four screw rod support plates 94. One ends of the four couplings 93 are respectively connected to one ends of the four ball screw rods 95. Z-axis linear guide rails I 913 are arranged on the four sliding bottom plates 96. Each Z-axis linear guide rail I 913 and the outer wall of the adjacent ball screw rod 95 are provided with the same X-axis linear guide rail I 97. The Z-axis servo motor 91 can drive the coupling 93 and the ball screw rod 95 to operate, so that the X-axis linear guide rail I 97 drives the steering plate I 910 to move along the direction of the Z-axis linear guide rail I 913.

[0062] Further, as Figure 13 shown, guide sleeve seats I are arranged on the four X-axis linear guide rails I 97. Guide sleeves I 912 are arranged on the four guide sleeve seats I. Thrust ball bearings I 911 are arranged on the four guide sleeves I 912. Steering plates I 910 are arranged on the four thrust ball bearings I 911. One side outer walls of the four steering plates I 910 are respectively fixedly connected to the outer walls of the two screen plate fixing frames 12. Bearing pressing plates I 99 are arranged on the four steering plates I 910.

[0063] Further, as Figure 13 shown, the X-axis displacement module 10 includes four module bottom plates 102, and the four module bottom plates 102 are respectively fixedly connected to the outer side walls of the two screen frame outer fixing frames 13. X-axis servo motors 101, X-axis linear guide rails II 103 and screw rod members 104 are arranged on the four module bottom plates 102. Each X-axis linear guide rail II 103 and the outer wall of the adjacent screw rod member 104 are provided with the same Z-axis linear guide rail II 105. Guide sleeve seats II are arranged on the four Z-axis linear guide rails II 105. Guide sleeves II 106 are arranged on the four guide sleeve seats II. Thrust ball bearings II 107 are arranged on the four guide sleeves II 106. Steering plates II 108 are arranged on the four thrust ball bearings II 107. One side outer walls of the four steering plates II 108 are respectively fixedly connected to the outer walls of the two screen plate fixing frames 12. Bearing pressing plates II 109 are arranged on the four steering plates II 108. The X-axis servo motor 101 can drive the screw rod member 104 to operate, so that the Z-axis linear guide rail II 105 drives the steering plate II 108 to move along the direction of the X-axis linear guide rail II 103.

[0064] The Z-axis displacement module 9 and the X-axis displacement module 10 achieve automatic double-screen alignment. During use, the double screens can be displaced in four directions to adjust the position of the screen body 11 according to the position data of the calibration holes in the area of the PCB body 2 obtained by the CCD camera mechanism 5, so as to ensure the corresponding position of the screen body 11 and the PCB body 2, and further ensure the printing accuracy of the PCB body 2.

[0065] The usage process of the CCD automatic alignment device of the vertical screen printer provided by the present invention is as follows:

[0066] A PCB body 2 is clamped on each of the fixtures of the vertical feeding frame one 3 and the vertical feeding frame two 6, and the feeding and discharging are alternately carried out left and right.

[0067] During feeding, the X-axis module 510 is installed on the Y-axis module 51. The Y-axis servo motor 56 drives the X-axis module 510 to move back and forth in a servo-driven manner to move the CCD camera body 54 in the Y-axis direction. Adjusting handwheels 52 are installed on both sides of the X-axis module 510, and the CCD camera body 54 is adjusted to move in the X-axis direction by driving the adjusting handwheels 52 in a handwheel-driven manner.

[0068] When adjusting the X-axis, move the opening and closing part 1502, so that the opening and closing part 1502 drives the rotating ring frame 1501 to move, and the opening and closing part 1502 compresses the telescopic spring rod 1505. At the same time, as the opening and closing part 1502 moves, the inclined guide groove 1508 contacts the locking connecting plate, so that the locking connecting plate drives the locking part 1512 to rotate, and the locking part 1512 is separated from the locking tooth ring 1504 for adjustment. After that, according to the PCB body 2 adjusted to the target position, at this time, the X-axis module 510 is locked by the handwheel locking module 15.

[0069] When locking, loosen the opening and closing part 1502, the telescopic spring rod 1505 is restored, and then the opening and closing part 1502 drives the inclined guide groove 1508 to move, so that the inclined guide groove 1508 is separated from the locking connecting rod 1510. At this time, the pressure spring 1509 drives the locking connecting rod 1510 to reset, and the locking part 1512 is quickly clamped with the locking tooth ring 1504 to complete the locking.

[0070] After locking, there are two movable sliders on the left and right of the X-axis module 510. Z-axis profiles 57 are installed on each slider. Z-axis manual displacement tables 58 and displacement table racks 59 are installed at both ends of the profile up and down. The CCD camera body 54 and the light source part 55 are installed on the Z-axis manual displacement table 58. The Z-axis manual displacement table 58 can be finely adjusted in the Z-axis direction through the displacement table rack 59. After adjustment, the CCD camera body 54 takes pictures.

[0071] After that, 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, so as to adjust the displacement of the screen body 11 on both sides in this direction. And the X-axis servo motor 101 can drive the screw member 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, so as to adjust the displacement of the screen body 11 on both sides in this direction, so that the screen body 11 can perform four-direction displacement, so that the position of the screen body 11 corresponds to that of the PCB board body 2 for printing;

[0072] During use, start the adjustment motor 1403. The connection shaft rod 1402 and the mounting connecting plate 1404 can be driven by the adjustment motor 1403 to rotate, and then the mounting connecting plate 1404 is unfolded. After unfolding, start the stepping motor 1405. The angle of the connecting frame 1406 is adjusted by the stepping motor 1405, and then the orientation of the electric telescopic rod 1407 is changed. After that, start the electric telescopic rod 1407, so that the electric telescopic rod 1407 drives the connecting frame 1419 and the communication bin 1411 to move, so as to make them correspond to the inner ring of the light source part 55. After that, the position of the light source part 55 is adjusted by the Y-axis servo motor 56, so that the cleaning pipe part 1413 is located at the inner ring of the light source part 55. At this time, start the air pump 1408 and the driving motor 1418. The driving gear 1417 is driven to rotate by the driving motor 1418. Since the driving gear 1417 meshes with the transmission gear 1416, the driving motor 1418 can drive the communication bin 1411 to rotate, and then the communication bin 1411 drives the cleaning pipe part 1413 and the cleaning brush 1414 to clean the area at the inner ring of the light source part 55. At the same time, the air pump 1408 can discharge the gas inside the dust filter storage bin 1409, making its internal part in a negative pressure state. Then, through the negative pressure pipe 1410, the inside of the communication bin 1411 is in a negative pressure state, so that the negative pressure holes 1412 suck in dust and other impurities and further transport them to the dust filter storage bin 1409 for concentration, so as to facilitate subsequent processing.

[0073] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium. It can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0074] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of them. The preferred embodiments of the present invention are shown in the 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 disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure that makes use of the content of the specification and drawings of the present invention, directly or indirectly applied in other related technical fields, is similarly within the scope of the 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 adjustment hand wheels (52), and the two adjustment hand wheels (52) being provided with hand wheel locking modules (15); 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 an outer wall of one side of the Y-axis module (51), the output shaft of the Y-axis servo motor (56) being connected to a 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); 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).

2. The CCD automatic alignment device for a vertical screen printer according to claim 1, 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).

3. 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.

4. The CCD automatic alignment device for a vertical screen printer according to claim 3, 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).

5. The CCD automatic alignment device for a vertical screen printer according to claim 4, 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).

6. 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).

7. The CCD automatic alignment device for a vertical screen printer according to claim 6, 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).

8. 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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