Automatic CCD (Charge Coupled Device) alignment device of vertical screen printing machine
By using a combination of dual feed frames and XYZ axis modules on a vertical screen printing machine, precise alignment of the CCD camera is achieved, solving the problems of printing quality and efficiency in vertical printing and improving printing accuracy and production efficiency.
Patent Information
- Application Number
- CN202520073281.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Existing vertical screen printing machines cannot achieve high-precision automatic alignment during the printing process, especially in vertical printing solutions, where the CCD camera mounting method is not suitable, resulting in limited printing quality and efficiency.
It adopts a dual-feed frame structure, combined with a CCD camera and a servo motor-driven XYZ axis module, to achieve precise alignment of the PCB board. The X and Z axis displacement modules adjust the position of the stencil, and the Y axis module adjusts the position of the CCD camera to achieve high-precision automatic alignment.
It improves printing efficiency and quality, realizes automatic alignment of double-sided screens, meets the dot elimination requirements of the white screen printing process, and enhances printing accuracy and production efficiency.
Smart Images
Figure CN223573991U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of PCB manufacturing, more particularly to a vertical silk screen printing machine CCD automatic alignment device. BACKGROUND
[0002] In the field of PCB solder mask printing, the current mainstream printing method adopts horizontal printing, PCB board is placed on the horizontal automatic alignment platform table, the screen is above the PCB board, and the CCD camera is below the PCB board alignment platform. This alignment method is not applicable in vertical printing scheme.
[0003] To solve the problem of vertical printing machine alignment, double-sided screen automatic alignment printing can be completed synchronously. However, the existing vertical silk screen printing machine loads while adding CCD camera. After the PCB board is photographed by four or diagonal two cameras to calibrate the hole position of the PCB board area, the target hole is automatically found, the algorithm software is controlled, the front and rear symmetrical screen frame is automatically adjusted, the position is aligned with the screen pattern, and high-precision printing is realized. UTILITY MODEL CONTENTS
[0004] In view of the problems in the prior art, the utility model aims at providing a vertical silk screen printing machine CCD automatic alignment device to solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme.
[0006] A vertical silk screen printing machine CCD automatic alignment device, comprising a feeding area and a printing area, a first vertical feeding frame and a second vertical feeding frame are arranged on the feeding area and the printing area respectively, a conveying guide rail is installed at the bottom of the first vertical feeding frame and the second vertical feeding frame, the conveying guide rail is installed between the feeding area and the printing area, a PCB board is clamped on the clamp of the first vertical feeding frame and the second vertical feeding frame, a CCD camera mechanism is fixedly installed on the feeding area, and the CCD camera mechanism is located on the front of the first vertical feeding frame, two vertical screen frame alignment mechanisms are fixedly installed on the inner side of the printing area, and the two vertical screen frame alignment mechanisms are located on the front and back of the second vertical feeding frame respectively.
[0007] The CCD camera mechanism comprises a mounting table fixedly installed on the feeding area, a Y-axis module is fixedly installed on the top of the mounting table, an X-axis module is fixedly installed on the top of the movable part of the Y-axis module, Z-axis profiles are fixedly installed on the movable parts on both sides of the X-axis module, a displacement shaft rack is installed on the Z-axis profile, a displacement table is slidably installed on the displacement shaft rack, and a CCD camera and a light source are fixedly installed on the displacement table.
[0008] The vertical screen frame alignment mechanism comprises a screen frame outer fixed frame, a screen, a screen fixed frame, an X-axis displacement module and a Z-axis displacement module, the screen fixed frame is arranged on the inner side of the screen frame outer fixed frame, the screen is arranged in the inner side of the screen fixed frame, the X-axis displacement module and the Z-axis displacement module are fixedly installed on the screen frame outer fixed frame, and the two sides of the screen fixed frame are connected with the X-axis displacement module and the Z-axis displacement module.
[0009] As a further description of the above technical scheme:
[0010] The Y-axis module comprises a sliding seat fixedly installed on the mounting table, a servo motor is fixedly installed on the sliding seat, an output shaft of the servo motor is threadedly connected with a mounting seat through a lead screw, and the X-axis module is fixedly installed on the mounting seat.
[0011] As a further description of the above technical scheme:
[0012] The left and right sides of the X-axis module are slidably connected with two sliding blocks, the Z-axis profile is fixedly connected with the sliding blocks, adjusting hand wheels are arranged on the left and right sides of the X-axis module, and the adjusting hand wheels are threadedly connected with the sliding blocks through lead screws.
[0013] As a further description of the above technical scheme:
[0014] The X-axis displacement module comprises a module bottom plate, an X-axis servo motor is fixedly installed on the module bottom plate, a first ball screw is rotatably installed on the module bottom plate, the X-axis servo motor and the first ball screw are connected through a belt transmission, a first Z-axis linear guide rail is threadedly connected with the first ball screw, a first X-axis linear guide rail is arranged between the first Z-axis linear guide rail and the module bottom plate, a Z-axis turning plate is rotatably connected to the first Z-axis linear guide rail, and the other end of the Z-axis turning plate is connected with the screen fixed frame.
[0015] As a further description of the above technical scheme:
[0016] The Z-axis displacement module comprises a sliding bottom plate, a Z-axis servo motor is fixedly installed on the sliding bottom plate, a second ball screw is fixedly connected with an output shaft of the Z-axis servo motor through a shaft coupling, a second X-axis linear guide rail is threadedly connected with the second ball screw, a second Z-axis linear guide rail is arranged between the second X-axis linear guide rail and the sliding bottom plate, and an X-axis turning plate is rotatably installed on the second X-axis linear guide rail.
[0017] Compared with the prior art, the utility model has the advantages that:
[0018] The double feeding frame CCD camera photographing structure, double stations alternately feeding and discharging, saves feeding and discharging time, improves production efficiency; double screen plate automatic alignment realizes high-precision printing; has up, down, left and right four direction displacement functions, most satisfies the point elimination requirement of the white screen printing process, improves quality. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structural schematic view of the utility model;
[0020] Figure 2 It is a left view structural schematic view of the utility model;
[0021] Figure 3 It is a structural schematic view of the CCD camera mechanism of the utility model;
[0022] Figure 4 It is a structural schematic view of the vertical screen frame alignment mechanism of the utility model;
[0023] Figure 5 It is a structural schematic view of the X-axis displacement module of the utility model;
[0024] Figure 6 It is a structural schematic view of the Z-axis displacement module of the utility model.
[0025] Mark explanation in drawing:
[0026] 1, feeding area; 2, printing area; 3, first vertical feeding frame; 4, second vertical feeding frame; 5, conveying guide rail; 6, PCB board; 7, CCD camera mechanism; 71, mounting table; 72, Y-axis module; 721, sliding seat; 722, servo motor; 723, mounting seat; 73, X-axis module; 731, sliding block; 732, adjusting hand wheel; 74, Z-axis profile; 75, displacement shaft rack; 76, displacement table; 77, CCD camera; 78, light source; 8, vertical screen frame alignment mechanism; 81, screen frame outer fixed frame; 82, screen plate; 83, screen plate fixed frame; 84, X-axis displacement module; 841, module bottom plate; 842, X-axis servo motor; 843, first ball screw; 844, first Z-axis linear guide rail; 845, first X-axis linear guide rail; 846, Z-axis steering plate; 85, Z-axis displacement module; 851, sliding bottom plate; 852, Z-axis servo motor; 853, second ball screw; 854, second X-axis linear guide rail; 855, second Z-axis linear guide rail; 856, X-axis steering plate. DETAILED DESCRIPTION
[0027] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings in the embodiments of the utility model;
[0028] Please refer to Figures 1-6The utility model discloses a vertical silk screen printing machine CCD automatic alignment device, including loading area 1 and printing area 2, and loading area 1 and printing area 2 are provided with first vertical feeding frame 3, second vertical feeding frame 4 respectively, the bottom of first vertical feeding frame 3 and second vertical feeding frame 4 all are installed with conveying guide rail 5, and conveying guide rail 5 is installed between loading area 1 and printing area 2, and the clamp of first vertical feeding frame 3 and second vertical feeding frame 4 all are clamped with PCB board 6, and loading area 1 is fixedly installed with CCD camera mechanism 7, and the front of first vertical feeding frame 3 is located in the inside fixed mounting of printing area 2 two vertical screen frame alignment mechanism 8, and two vertical screen frame alignment mechanism 8 are located at the front and back of second vertical feeding frame 4 respectively.
[0029] CCD camera mechanism 7 includes the installation platform 71 of fixed installation in loading area 1, the top of installation platform 71 is fixedly installed with Y axis module 72, the top of the movable part of Y axis module 72 is fixedly installed with X axis module 73, and the movable part of X axis module 73 both sides is fixedly installed with Z axis section bar 74, and the displacement shaft rack 75 is installed on Z axis section bar 74, and the displacement platform 76 is slidably installed on displacement shaft rack 75, and the CCD camera 77 and light source 78 are fixedly installed on displacement platform 76.
[0030] Vertical screen frame alignment mechanism 8 includes screen frame outer fixed frame 81, screen plate 82, screen plate fixed frame 83, X axis displacement module 84, Z axis displacement module 85, screen plate fixed frame 83 is arranged at the inside of screen frame outer fixed frame 81, screen plate 82 is built-in at the inside of screen plate fixed frame 83, X axis displacement module 84 and Z axis displacement module 85 are all fixedly installed on screen frame outer fixed frame 81, and the both sides of screen plate fixed frame 83 are connected with X axis displacement module 84 and Z axis displacement module 85.
[0031] The utility model discloses, through setting up two conveying guide rails 5, and installing first vertical feeding frame 3 and second vertical feeding frame 4 on two conveying guide rails 5 respectively, thereby can conveniently alternate conveying and feeding and discharging, when printing on one, disassembles to the PCB board 6 on another feeding frame, improves the printing efficiency of PCB board 6, and the distance CCD camera 77 has difference before and after first vertical feeding frame 3 and second vertical feeding frame 4, through the X axis module 73 and Y axis module 72 adjustment CCD camera 77 X axis and Y axis's distance of CCD camera mechanism 7, then through the displacement platform 76 on the sliding displacement shaft rack 75, to single CCD camera 77 and light source 78 carry out fine adjustment, conveniently let every CCD camera 77 can accurately accurate shooting PCB board 6, improve its adjustability and application scope, according to the image data of CCD camera 77 shooting, control X axis displacement module 84 and Z axis displacement module 85, adjust the position of screen plate fixed frame 83 in X axis and Z axis in fixed frame 81 of net frame, so that the screen plate 82 can automatically calibrate and align PCB board 6, can ensure the effect of XYZ axis CCD camera module, improve the screen plate alignment precision, guarantee printing quality.
[0032] Please refer to Figure 1 With Figure 3 Wherein: Y axis module 72 includes fixedly installed on mounting table 71 sliding seat 721, fixedly installed on sliding seat 721 servo motor 722, the output shaft of servo motor 722 is connected with mounting seat 723 through screw thread, and X axis module 73 is fixedly installed on mounting seat 723.
[0033] In the utility model, X axis module 73 is installed on mounting seat 723 and is driven mounting seat 723 on mounting table 71 front and back displacement through servo motor 722, lets CCD camera 77 approach or be far from PCB board 6.
[0034] Please refer to Figure 1 With Figure 3 Wherein: the left and right both of X axis module 73 are slidably connected with two sliding blocks 731, and Z axis profile 74 is fixedly connected with sliding block 731, and the left and right sides of X axis module 73 are both installed with adjusting hand wheel 732, and adjusting hand wheel 732 is connected with sliding block 731 through screw thread.
[0035] In the utility model, through adjusting hand wheel 732 drive screw rotation, utilize the screw thread connection of screw and sliding block 731, drive sliding block 731 on X axis module 73 left and right sliding, change the left and right positions of CCD camera 77.
[0036] Please refer to Figure 5Wherein: the X-axis displacement module 84 comprises a module base plate 841, the X-axis servo motor 842 is fixedly installed on the module base plate 841, the first ball screw 843 is rotatably installed on the module base plate 841, the X-axis servo motor 842 and the first ball screw 843 are connected through a belt transmission, the first Z-axis linear guide rail 844 is threadedly connected to the first ball screw 843, the first Z-axis linear guide rail 844 and the module base plate 841 are connected through the first X-axis linear guide rail 845, the Z-axis steering plate 846 is rotatably connected to the first Z-axis linear guide rail 844, and the other end of the Z-axis steering plate 846 is connected to the screen fixing frame 83.
[0037] In the utility model, the X-axis servo motor 842 is electrified to work, can drive the first ball screw 843 to rotate, the first Z-axis linear guide rail 844 is movable on the first X-axis linear guide rail 845, so as to drive the X-axis displacement of the screen fixing frame 83 through the Z-axis steering plate 846, wherein the first Z-axis linear guide rail 844 does not interfere with the Z-axis displacement of the screen fixing frame 83 when the Z-axis displacement module 85 works.
[0038] Please refer to Figure 6 Wherein: the Z-axis displacement module 85 comprises a sliding base plate 851, the Z-axis servo motor 852 is fixedly installed on the sliding base plate 851, the second ball screw 853 is fixedly connected to the output shaft of the Z-axis servo motor 852 through a shaft coupling, the second X-axis linear guide rail 854 is threadedly connected to the second ball screw 853, the second Z-axis linear guide rail 855 is connected between the second X-axis linear guide rail 854 and the sliding base plate 851, and the X-axis steering plate 856 is rotatably installed on the second X-axis linear guide rail 854.
[0039] In the utility model, the Z-axis servo motor 852 is electrified to work, can drive the second ball screw 853 to rotate, the second X-axis linear guide rail 854 is slidable on the second Z-axis linear guide rail 855, so as to drive the Z-axis displacement of the screen fixing frame 83 through the X-axis steering plate 856, wherein the second X-axis linear guide rail 854 does not interfere with the X-axis displacement of the screen fixing frame 83 when the X-axis displacement module 84 works.
[0040] The above only for the preferred specific embodiment of the utility model;But the protection scope of the utility model is not limited to this. Any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme of the utility model and its improved conception, equivalent replacement or change, should be covered in the protection scope of the utility model.
Claims
1. A vertical silk-screen printing machine CCD automatic alignment device, comprising a feeding area (1) and a printing area (2), the feeding area (1) and the printing area (2) are respectively provided with a first vertical feeding frame (3) and a second vertical feeding frame (4), characterized in that: The bottom of the first vertical feeding frame (3) and the second vertical feeding frame (4) is provided with a conveying guide rail (5), the conveying guide rail (5) is installed between the feeding area (1) and the printing area (2), the clamps of the first vertical feeding frame (3) and the second vertical feeding frame (4) are clamped with the PCB board (6), the feeding area (1) is fixedly provided with a CCD camera mechanism (7), and the CCD camera mechanism (7) is located on the front of the first vertical feeding frame (3), and the inner side of the printing area (2) is fixedly provided with two vertical screen frame alignment mechanisms (8), and the two vertical screen frame alignment mechanisms (8) are located on the front and back of the second vertical feeding frame (4) respectively. The CCD camera mechanism (7) comprises a mounting table (71) fixedly installed on the feeding area (1), a Y-axis module (72) fixedly installed on the top of the mounting table (71), an X-axis module (73) fixedly installed on the top of the movable part of the Y-axis module (72), Z-axis profiles (74) fixedly installed on the movable parts on the two sides of the X-axis module (73), displacement shaft racks (75) installed on the Z-axis profiles (74), displacement tables (76) slidably installed on the displacement shaft racks (75), and a CCD camera (77) and a light source (78) fixedly installed on the displacement table (76). The vertical screen frame alignment mechanism (8) comprises a screen frame outer fixed frame (81), a screen (82), a screen fixed frame (83), an X-axis displacement module (84) and a Z-axis displacement module (85), the screen fixed frame (83) is arranged on the inner side of the screen frame outer fixed frame (81), the screen (82) is arranged in the screen fixed frame (83), the X-axis displacement module (84) and the Z-axis displacement module (85) are fixedly installed on the screen frame outer fixed frame (81), and the two sides of the screen fixed frame (83) are connected with the X-axis displacement module (84) and the Z-axis displacement module (85).
2. The vertical screen printer CCD automatic alignment device according to claim 1, characterized in that: The Y-axis module (72) comprises a sliding seat (721) fixedly installed on the mounting table (71), a servo motor (722) fixedly installed on the sliding seat (721), and an installation seat (723) threadedly connected with the output shaft of the servo motor (722) through a lead screw, and the X-axis module (73) is fixedly installed on the installation seat (723).
3. The vertical screen printer CCD automatic alignment device of claim 1, wherein: The X-axis module (73) is slidably connected with two sliding blocks (731) on the left and right sides, the Z-axis profiles (74) are fixedly connected with the sliding blocks (731), adjusting hand wheels (732) are installed on the left and right sides of the X-axis module (73), and the adjusting hand wheels (732) are threadedly connected with the sliding blocks (731) through lead screws.
4. The vertical screen printer CCD automatic alignment device of claim 1, wherein: The X-axis displacement module (84) comprises a module base plate (841), the X-axis servo motor (842) is fixedly installed on the module base plate (841), the first ball screw (843) is rotatably installed on the module base plate (841), the X-axis servo motor (842) and the first ball screw (843) are connected through a belt transmission, the first Z-axis linear guide rail (844) is threadedly connected to the first ball screw (843), the first Z-axis linear guide rail (844) and the module base plate (841) are connected through the first X-axis linear guide rail (845), the Z-axis steering plate (846) is rotatably connected to the first Z-axis linear guide rail (844), and the other end of the Z-axis steering plate (846) is connected with the screen fixed frame (83).
5. The vertical screen printer CCD automatic alignment device of claim 1, wherein: The Z-axis displacement module (85) comprises a sliding base plate (851), the Z-axis servo motor (852) is fixedly installed on the sliding base plate (851), the output shaft of the Z-axis servo motor (852) is fixedly connected with the second ball screw (853) through a shaft coupling, the second ball screw (853) is threadedly connected with the second X-axis linear guide rail (854), the second X-axis linear guide rail (854) and the sliding base plate (851) are connected through the second Z-axis linear guide rail (855), and the X-axis steering plate (856) is rotatably installed on the second X-axis linear guide rail (854).