Vision-based positioning printing system

By using a hydraulic telescopic component to drive the linkage mechanism and a vision positioning system, the problem of workpiece displacement during the movement of the printing equipment is solved, achieving high-precision workpiece clamping and vision positioning, and improving printing quality.

CN120792155BActive Publication Date: 2025-12-02ZHEJIANG GONGZHENG INTELLIGENT EQUIPMENT CO LTD
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Patent Information

Application Number
CN202511292748.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-11
Publication Date
2025-12-02
Estimated Expiration
2045-09-11

AI Technical Summary

Technical Problem

In existing technologies, the moving worktable of a printing device can easily cause workpiece displacement during movement, resulting in reduced printing accuracy.

Method used

A hydraulic telescopic component drives a linkage mechanism, causing the L-shaped material clamping block to rotate around the hinge of the limit frame. Combined with a vision positioning mechanism and a light source device, this achieves stable clamping and precise positioning of the workpiece.

Benefits of technology

It effectively avoids workpiece displacement during movement, improves printing accuracy and pass rate, enhances the contrast between target features and background, and improves the accuracy of visual positioning.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of printing system technology, specifically to a vision-based positioning printing system. The system includes a frame, a scanning carriage assembly mounted on top of the frame and movable along the X and Z axes, a vision positioning mechanism mounted on one side of the scanning carriage assembly, a movable worktable mounted inside the frame and movable along the Y axis, and a clamping mechanism mounted on the upper surface of the movable worktable for fixing a workpiece. The clamping mechanism includes fixed seats symmetrically fixed to the upper surface of the movable worktable, with a limit frame fixed to one side of each fixed seat. L-shaped material clamping blocks for fixing the workpiece are hinged to both sides of the limit frame away from the fixed seat. A horizontally movable linkage mechanism is installed inside the limit frame, which drives the L-shaped material clamping blocks to clamp or release. This application achieves workpiece fixation using L-shaped material clamping blocks, solving the problem of workpiece displacement during the movement of the movable worktable.
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Description

Technical Field

[0001] This invention relates to the field of printing system technology, and more specifically to a vision-based positioning printing system. Background Technology

[0002] Visual positioning-based printing technology is an innovative achievement combining printing and visual recognition in recent years. This technology uses high-precision visual sensors to capture the position, shape, and surface features of a target object in real time, and utilizes advanced image processing algorithms to quickly analyze and calculate the precise relative coordinates between the print head and the target. Based on this, the printing equipment can dynamically adjust the inkjet path and angle, achieving precise printing on complex curved surfaces, irregular objects, and even dynamic targets. Its core advantage lies in breaking through the limitations of traditional planar printing, supporting personalized customization, flexible production, and rapid prototyping. It is widely used in advertising signage, packaging printing, electronic product decoration, and medical device marking, providing strong technical support for intelligent manufacturing and personalized services.

[0003] Patent document CN211467486U discloses a micro 3D printing device for active stem cells based on PL-level piezoelectric nozzle technology. The device is characterized by comprising several piezoelectric nozzles, several cell storage bottles, with the fluid channels of the piezoelectric nozzles connected to the cell storage bottles via capillary glass tubes, a high-viscosity material extrusion device employing a screw-type extrusion valve, and a visual observation device consisting of a horizontal observation device and a vertical observation device. The horizontal observation device is used for detecting cell printing by the piezoelectric nozzles in the horizontal direction, while the vertical observation device is used for positioning and calibrating the printing material and detecting the printing effect. Its advantages include: using inkjet printing technology to replace the traditional extrusion method for cell printing, enabling single-cell printing that is impossible with extrusion methods, while achieving high cell precision down to the micrometer level.

[0004] The 3D printing device described in the aforementioned patent document adjusts the position of the printing base plate by placing the printing base plate on an X-motion module, which in turn is positioned on a Y-motion module. However, when the X-motion and Y-motion modules move and adjust the printing base plate, the workpiece on the base plate is easily displaced, leading to errors in the accuracy of the printed workpiece and reducing the yield rate. Therefore, a vision-based positioning printing system is proposed. Summary of the Invention

[0005] To address the aforementioned issues, a vision-based positioning printing system is provided. By extending or retracting the telescopic end of a hydraulic telescopic component, the component drives a linkage mechanism to move horizontally. This movement of the linkage mechanism then drives an L-shaped material clamping block, allowing the L-shaped clamping block to rotate around its hinge point with the limiting frame. This, in turn, clamps the workpiece, effectively securing it in place. This solves the problem of workpiece displacement during the movement of the moving worktable.

[0006] To address the problems of existing technologies, this invention provides a vision-based printing system, including a frame, a scanning carriage assembly mounted on the top of the frame and movable along the X and Z axes, a vision positioning mechanism mounted on one side of the scanning carriage assembly, a movable worktable mounted inside the frame and movable along the Y axis, and a clamping mechanism mounted on the upper surface of the movable worktable for fixing the workpiece. The clamping mechanism includes fixed seats symmetrically fixed to the upper surface of the movable worktable, and a limit frame fixed on one side of the fixed seats.

[0007] The limiting frame has L-shaped material clamping blocks hinged on both sides of the end away from the fixed seat for fixing the workpiece.

[0008] The limit frame is equipped with a linkage mechanism that can move horizontally. The linkage mechanism is used to drive the L-shaped material clamping block to clamp or release.

[0009] As a technical solution of the present invention, the limiting frame is provided with a first limiting groove that can penetrate through its top and bottom;

[0010] The linkage mechanism includes a slider, the top and bottom of which slide in conjunction with the first limiting groove.

[0011] As a technical solution of the present invention, a push block is fixed at the top of the slider, and a waist-shaped groove is opened at both ends of the push block so as to penetrate its upper and lower end surfaces. Push rods are symmetrically arranged on both sides of the bottom of the slider, and a limit rod is fixed on the upper and lower end surfaces of the push rods away from the slider.

[0012] The top of the L-shaped material clamping block is longitudinally fixed with a hinge rod that can be installed inside the waist-shaped groove;

[0013] The L-shaped material clamping block has a clearance groove on one side, and a second limiting groove is provided at the top and bottom of the clearance groove to allow the limiting rod to move.

[0014] As a technical solution of the present invention, the visual positioning mechanism includes a fixed frame fixed to one side of the scanning vehicle head assembly, a camera body fixed to one side of the fixed frame, and a camera control module for controlling its operation provided at the top of the camera body.

[0015] A light source device is installed at the bottom of the camera body on one side of the visual positioning mechanism, and a light-transmitting groove is opened on the housing of the light source device.

[0016] As one technical solution of the present invention, a heat dissipation component for dissipating heat is fixed on one side of the light source device.

[0017] As one technical solution of the present invention, a support frame is horizontally fixed on one side of the fixed frame near the center, and the working end of the camera body is fixed on the upper end surface of the support frame.

[0018] A positioning mounting bracket for fixing the camera control module is fixed to the top of one side of the mounting bracket.

[0019] As one technical solution of the present invention, a suspension is fixed to the bottom of one side of the fixed frame, and the light source device is fixed to the inner side of the suspension.

[0020] As a technical solution of the present invention, a first lead screw capable of rotation is horizontally installed at the bottom of the inner side of the frame along the Y-axis direction, and one end of the first lead screw can be fixedly connected to the motor.

[0021] The upper end face of the inner side of the frame is symmetrically provided with second limiting slide rails on both sides of the first lead screw for limiting the movement of the worktable, and the lower end face of the worktable is slidably connected to the second limiting slide rails.

[0022] The lower end face of the movable worktable is provided with a threaded sleeve, which is fitted onto the outside of the first lead screw and is threadedly connected to the first lead screw.

[0023] As one technical solution of the present invention, a first limiting slide rail is horizontally fixed on one side of the top of the frame, and a first slide table capable of reciprocating along the X-axis is installed on the first limiting slide rail.

[0024] As a technical solution of the present invention, a second slide capable of longitudinal movement is provided on one side of the first slide, and two third limiting slide rails are longitudinally fixed on the side of the second slide facing the first slide.

[0025] The second slide is slidably connected to the first slide via a third limiting slide rail;

[0026] A drive motor is fixed to the top of the second slide, and a rotatable second lead screw is provided at the output end of the drive motor. The first slide is mounted on the second lead screw, and the first slide is threadedly connected to the second lead screw.

[0027] A handle is provided at the top of the drive motor, and the handle is fixedly connected to one end of the second lead screw.

[0028] The advantages of this invention compared to the prior art are:

[0029] 1. This application utilizes the extension or retraction of a hydraulic telescopic component, enabling the component to drive a linkage mechanism to move horizontally. This movement of the linkage mechanism then drives an L-shaped material clamping block, allowing the L-shaped clamping block to rotate around its hinge point with the limiting frame. This, in turn, allows the L-shaped clamping block to clamp the workpiece, thus securing it in place. This solves the problem of workpiece displacement during the movement of a mobile worktable.

[0030] 2. This application utilizes a push block to push a hinge rod through a waist-shaped groove, causing the waist-shaped groove and the hinge rod to cooperate in pushing an L-shaped material clamping block. This causes the L-shaped material clamping block to rotate around its hinge point with the limiting frame, allowing the end of the L-shaped material clamping block away from the limiting frame to contact the workpiece. This achieves the fixation of the workpiece by the L-shaped material clamping block. Simultaneously, when the push block pushes the hinge rod through the waist-shaped groove, the hinge rod can travel along the inside of the push block, ensuring effective transmission between the waist-shaped groove and the hinge rod.

[0031] 3. This application utilizes a scanning carriage assembly to drive a mounting frame, which in turn moves the camera body to the printing area. Simultaneously, a light source is activated to illuminate the printing area. When the light source illuminates the printing area, it provides uniform illumination. By adjusting the light source color (e.g., red or blue light) or angle, the contrast between target features and the background can be enhanced, making details such as edges and textures easier to identify. This achieves the purpose of visual positioning. Attached Figure Description

[0032] Figure 1 This is a 3D structural diagram of a vision-based positioning printing system. Figure 1 .

[0033] Figure 2 This is a 3D structural diagram of a vision-based positioning printing system. Figure 2 .

[0034] Figure 3 This is a 3D view of the rack in a vision-based positioning printing system.

[0035] Figure 4 This is a 3D view of the first slide in a vision-based positioning printing system.

[0036] Figure 5 This is a 3D view of the second slide in a vision-based positioning printing system.

[0037] Figure 6 This is a 3D image of the front-end components scanned in a vision-based positioning printing system.

[0038] Figure 7 This is a 3D structural diagram of the vision positioning mechanism in a vision-based positioning printing system. Figure 1 .

[0039] Figure 8 This is a 3D structural diagram of the vision positioning mechanism in a vision-based positioning printing system. Figure 2 .

[0040] Figure 9 This is a 3D diagram of the clamping mechanism in a vision-based positioning printing system.

[0041] Figure 10 This is a 3D diagram of the linkage mechanism in a vision-based positioning printing system.

[0042] Figure 11 This is a 3D view of the moving worktable in a vision-based positioning printing system.

[0043] The diagram is labeled as follows: 1. Frame; 11. First limiting slide rail; 12. Second limiting slide rail; 13. First lead screw; 2. Scanning head assembly; 3. Clamping mechanism; 31. Fixed seat; 32. Limiting frame; 321. First limiting groove; 322. L-shaped material clamping block; 323. Hinge rod; 324. Clearance groove; 325. Second limiting groove; 33. Hydraulic telescopic component; 34. Linkage mechanism; 341. Slider; 342. Push block; 343. Waist-shaped groove; 344. 345. Push rod; 41. First slide table; 42. Second slide table; 421. Third limit slide rail; 46. Drive motor; 461. Handle; 462. Second lead screw; 6. Vision positioning mechanism; 61. Fixing frame; 611. Positioning mounting frame; 612. Lifting frame; 613. Suspension; 62. Camera body; 621. Camera control module; 63. Light source device; 631. Light transmission slot; 64. Heat dissipation assembly; 7. Moving worktable; 71. Threaded sleeve. Detailed Implementation

[0044] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0045] See Figure 1 and Figure 11 As shown, the vision-based printing system includes a frame 1, a scanning head assembly 2 that is located on the top of the frame 1 and can move along the X-axis and Z-axis, a vision positioning mechanism 6 located on one side of the scanning head assembly 2, a movable worktable 7 located inside the frame 1 and can move along the Y-axis, and a clamping mechanism 3 located on the upper surface of the movable worktable 7 for fixing the workpiece. The clamping mechanism 3 includes a fixed seat 31 symmetrically fixed to the upper surface of the movable worktable 7, and a limit frame 32 fixed on one side of the fixed seat 31.

[0046] The limiting frame 32 has L-shaped material clamping blocks 322 for fixing the workpiece hinged on both sides of the end away from the fixed base 31.

[0047] The limiting frame 32 is equipped with a horizontally movable linkage mechanism 34, which is used to drive the L-shaped material clamping block 322 to clamp or release.

[0048] The clamping mechanism 3 also includes a hydraulic telescopic component 33 fixed to the upper surface of the fixed base 31. The telescopic end of the hydraulic telescopic component 33 can extend into the limiting frame 32, and the linkage mechanism 34 is fixed to the telescopic end of the hydraulic telescopic component 33. When the hydraulic telescopic component 33 extends or retracts, it can drive the linkage mechanism 34 to move horizontally through its telescopic end. The movement of the linkage mechanism 34 drives the L-shaped material clamping block 322, causing it to rotate around its hinge with the limiting frame 32, thereby clamping the workpiece. This achieves the fixation of the workpiece by the L-shaped material clamping block 322, solving the problem that the movable worktable 7 is prone to displacement during movement.

[0049] See Figure 9 and Figure 10 As shown, the limiting frame 32 has a first limiting groove 321 that can penetrate through its top and bottom;

[0050] The linkage mechanism 34 includes a slider 341, the top and bottom of which slide in conjunction with the first limiting groove 321.

[0051] When the hydraulic telescopic component 33 moves the slider 341, the top and bottom ends of the slider 341 can slide along the first limiting groove 321. This ensures the stability of the slider 341's movement and effectively prevents displacement of the slider 341 during movement.

[0052] See Figure 9 and Figure 10 As shown, a push block 342 is fixed at the top of the slider 341. Both ends of the push block 342 are provided with waist-shaped grooves 343 that can penetrate through its upper and lower surfaces. Push rods 344 are symmetrically arranged on both sides of the bottom of the slider 341. Limiting rods 345 are fixed on the upper and lower surfaces of the push rods 344 away from the slider 341.

[0053] The top of the L-shaped material clamping block 322 is longitudinally fixed with a hinge rod 323 that can be installed inside the waist-shaped groove 343;

[0054] The L-shaped material clamping block 322 has a clearance groove 324 on one side, and the top and bottom of the clearance groove 324 have a second limiting groove 325 that allows the limiting rod 345 to move.

[0055] When the slider 341 moves, it drives the push block 342, which is fixed at the top, to move synchronously. Simultaneously, the push block 342 pushes the hinge rod 323 through the waist-shaped groove 343, causing the waist-shaped groove 343 and the hinge rod 323 to cooperate in pushing the L-shaped material clamping block 322. This allows the L-shaped material clamping block 322 to rotate around its hinge point with the limiting frame 32, so that the end of the L-shaped material clamping block 322 away from the limiting frame 32 contacts the workpiece, thereby fixing the workpiece. At the same time, when the push block 342 pushes the hinge rod 323 through the waist-shaped groove 343, the hinge rod 323 can travel along the inside of the push block 342, ensuring effective transmission between the waist-shaped groove 343 and the hinge rod 323.

[0056] See Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, the visual positioning mechanism 6 includes a mounting bracket 61 fixed to one side of the scanning head assembly 2, a camera body 62 fixed to one side of the mounting bracket 61, and a camera control module 621 for controlling its operation provided at the top of the camera body 62.

[0057] A light source device 63 is provided at the bottom of the camera body 62 on one side of the visual positioning mechanism 6, and a light transmission groove 631 is provided on the housing of the light source device 63.

[0058] The scanning head assembly 2 drives the mounting bracket 61, which in turn moves the camera body 62 to the printing area. Simultaneously, the light source device 63 is activated and illuminates the printing area. When the light source device 63 illuminates the printing area, it provides uniform illumination. By adjusting the light source color (e.g., red, blue) or angle, the contrast between the target features and the background can be enhanced, making edges, textures, and other details easier to identify. This achieves the purpose of visual positioning. Then, the camera control module 621 controls the camera body 62 to capture images of the target features, enabling the camera body 62 to acquire image information of the printing area in real time.

[0059] See Figure 7 and Figure 8 As shown, a heat dissipation component 64 for dissipating heat is fixed on one side of the light source device 63.

[0060] To ensure stable operation of the light source device 63, a significant amount of heat is generated when it illuminates the printing area. If this heat exceeds its tolerance limit, the light source device 63 may malfunction or even burn out due to overheating. Therefore, a heat dissipation component 64 is installed on one side of the light source device 63 to dissipate heat when activated. This effectively dissipates heat from the light source device 63, ensuring its surface temperature remains within acceptable limits during operation and preventing overheating that could lead to malfunction or damage.

[0061] See Figure 7 and Figure 8 As shown, a support frame 612 is horizontally fixed on one side of the fixed frame 61 near the center, and the working end of the camera body 62 is fixed on the upper end face of the support frame 612.

[0062] A positioning mounting bracket 611 for fixing the camera control module 621 is fixed to the top of one side of the mounting bracket 61.

[0063] To ensure the stability of the camera body 62, the working end of the camera body 62 is fixed to the upper surface of the support frame 612. This allows the support frame 612 to support the camera body 62, preventing it from shaking when acquiring image data of the target area and effectively ensuring its stability. Similarly, by fixing both sides of the camera control module 621 to the inside of the positioning mounting bracket 611, the positioning mounting bracket 611 secures the camera control module 621, effectively preventing it from shaking. This ensures a stable connection between the camera control module 621 and the camera body 62, preventing loosening that could prevent the camera body 62 from acquiring image data.

[0064] See Figure 7 and Figure 8 As shown, a suspension 613 is fixed to the bottom of one side of the mounting bracket 61, and the light source device 63 is fixed to the inside of the suspension 613.

[0065] To ensure the stability of the light source device 63, it is fixedly mounted on the inner side of the suspension 613. When the scanning head assembly 2 moves, the suspension 613 can drive the light source device 63 to move synchronously, ensuring synchronization between the light source device 63 and the scanning head assembly 2. This also prevents the light source device 63 from vibrating while the scanning head assembly 2 moves via the suspension 613, thus ensuring the stability of the light source device 63.

[0066] See Figure 11As shown, a first lead screw 13 capable of rotation is horizontally mounted on the bottom inner side of the frame 1 along the Y-axis direction, and one end of the first lead screw 13 can be fixedly connected to the motor.

[0067] The upper end face of the inner side of the frame 1 is symmetrically provided with second limiting slide rails 12 for limiting the movement of the worktable 7 on both sides of the first lead screw 13. The lower end face of the worktable 7 is slidably connected to the second limiting slide rails 12.

[0068] A threaded sleeve 71 is provided on the lower end face of the movable worktable 7. The threaded sleeve 71 is fitted outside the first lead screw 13 and is threadedly connected to the first lead screw 13.

[0069] A motor drives the first lead screw 13 to rotate, causing the lead screw 13 to move the movable worktable 7 horizontally along the Y-axis via the threaded sleeve 71, thus enabling the movable worktable 7 to move synchronously with the workpiece. The lower end face of the movable worktable 7 is slidably connected to the second limiting slide rail 12. When the first lead screw 13 moves the movable worktable 7 along the Y-axis, the movable worktable 7 can slide along the second limiting slide rail 12, ensuring the stability of the movable worktable 7 during movement.

[0070] See Figure 1 , Figure 2 and Figure 4 As shown, a first limiting slide rail 11 is horizontally fixed on one side of the top of the frame 1, and a first slide table 41 capable of reciprocating along the X-axis is installed on the first limiting slide rail 11.

[0071] When the first limiting slide rail 11 is energized, it drives the first slide table 41 to move horizontally along the X-axis. This allows the first slide table 41 to drive the scanning head assembly 2 to move along the X-axis via the second slide table 42.

[0072] See Figure 4 and Figure 5 As shown, a second slide 42 capable of longitudinal movement is provided on one side of the first slide 41, and two third limiting slide rails 421 are longitudinally fixed on the side of the second slide 42 facing the first slide 41.

[0073] The second slide 42 is slidably connected to the first slide 41 via the third limiting slide rail 421;

[0074] The top of the second slide 42 is fixed with a drive motor 46, and the output end of the drive motor 46 is provided with a rotatable second lead screw 462. The first slide 41 is mounted on the second lead screw 462, and the first slide 41 and the second lead screw 462 are threadedly connected.

[0075] A handle 461 is provided at the top of the drive motor 46, and the handle 461 is fixedly connected to one end of the second lead screw 462.

[0076] When the drive motor 46 starts, it drives the handle 461 to rotate. As the drive motor 46 rotates, it drives the second slide 42, causing it to move along the Z-axis. This allows the first slide 41 and the second slide 42 to work together to adjust the scanning carriage assembly 2 in the Z-axis direction. By providing a handle 461 on top of the drive motor 46, and fixing the handle 461 to the top of the second lead screw 462, rotating the handle 461 drives the second lead screw 462 to rotate. This allows the second lead screw 462 to be operated manually or automatically, ensuring that the scanning carriage assembly 2 meets the requirements for low-frequency operation during maintenance.

[0077] Working Principle: When the first limiting slide rail 11 is activated, it drives the first slide table 41 to move horizontally along the X-axis. When the drive motor 46 is activated, it rotates the handle 461. As the drive motor 46 rotates, it drives the second slide table 42, causing it to move along the Z-axis. This allows the first slide table 41 and the second slide table 42 to work together to adjust the scanning carriage assembly 2 in the X and Z axes. Simultaneously, the movement of the scanning carriage assembly 2 drives the mounting bracket 61, which in turn moves the camera body 62 to the printing area. At the same time, the light source device 63 is activated and illuminates the printing area. When the light source device 63 illuminates the printing area, it provides uniform illumination. By adjusting the light source color (e.g., red, blue) or angle, the contrast between the target features and the background can be enhanced, making edges, textures, and other details easier to identify. This achieves the purpose of visual positioning. Then, the camera control module 621 controls the camera body 62 to take pictures of the target features, enabling the camera body 62 to acquire image information of the printing area in real time. During the printing process, the motor drives the first lead screw 13 to rotate, causing the first lead screw 13 to drive the moving worktable 7 to move horizontally along the Y-axis through the threaded sleeve 71, thereby causing the moving worktable 7 to move synchronously with the workpiece. The lower end face of the moving worktable 7 is slidably connected to the second limit slide rail 12, allowing the first lead screw 13 to drive the moving worktable 7 to move along the Y-axis. When the light source device 63 irradiates the printing area, a heat dissipation component 64 is installed on one side of the light source device 63, allowing the heat dissipation component 64 to remove heat from the light source device 63 when activated. This achieves the purpose of heat dissipation for the light source device 63, ensuring that its surface temperature remains within acceptable limits during operation, and preventing the light source device 63 from malfunctioning or even being damaged due to excessive temperature.

[0078] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A vision-based printing system, comprising a frame (1), a scanning carriage assembly (2) disposed on the top of the frame (1) and movable along the X-axis and Z-axis, a vision positioning mechanism (6) disposed on one side of the scanning carriage assembly (2), a movable worktable (7) disposed inside the frame (1) and movable along the Y-axis, and a clamping mechanism (3) disposed on the upper surface of the movable worktable (7) for fixing the workpiece, characterized in that, The clamping mechanism (3) includes a fixed seat (31) that symmetrically fixes and moves the upper surface of the worktable (7), and a limit frame (32) is fixed on one side of the fixed seat (31). The limiting frame (32) has L-shaped material clamping blocks (322) hinged on both sides of the end away from the fixed seat (31) for fixing the workpiece. The limiting frame (32) is equipped with a horizontally movable linkage mechanism (34), which is used to drive the L-shaped material clamping block (322) to clamp or release. The limiting frame (32) is provided with a first limiting groove (321) that can penetrate its top and bottom. The linkage mechanism (34) includes a slider (341), the top and bottom of which slide in cooperation with the first limiting groove (321); The top of the slider (341) is fixed with a push block (342). Both ends of the push block (342) are provided with waist-shaped grooves (343) that can penetrate through its upper and lower surfaces. Push rods (344) are symmetrically arranged on both sides of the bottom of the slider (341). Limiting rods (345) are fixed on the upper and lower surfaces of the push rods (344) away from the slider (341). The top of the L-shaped material clamping block (322) is longitudinally fixed with a hinge rod (323) that can be installed inside the waist-shaped groove (343). The L-shaped material clamping block (322) has a clearance groove (324) on one side, and a second limit groove (325) is provided at the top and bottom of the clearance groove (324) to allow the limit rod (345) to move.

2. The vision-based positioning printing system according to claim 1, characterized in that, The visual positioning mechanism (6) includes a mounting bracket (61) fixed to one side of the scanning head assembly (2), a camera body (62) fixed to one side of the mounting bracket (61), and a camera control module (621) for controlling its operation is provided at the top of the camera body (62). A light source device (63) is provided at the bottom of the camera body (62) on one side of the visual positioning mechanism (6), and a light-transmitting groove (631) is provided on the housing of the light source device (63).

3. The vision-based positioning printing system according to claim 2, characterized in that, A heat dissipation component (64) for dissipating heat is fixed on one side of the light source device (63).

4. The vision-based positioning printing system according to claim 2, characterized in that, A support frame (612) is horizontally fixed on one side of the fixed frame (61) near the center, and the working end of the camera body (62) is fixed on the upper surface of the support frame (612). A positioning mounting bracket (611) for fixing the camera control module (621) is fixed on the top of one side of the mounting bracket (61).

5. The vision-based printing system according to claim 2, characterized in that, A suspension (613) is fixed to the bottom of one side of the fixed frame (61), and the light source device (63) is fixed to the inside of the suspension (613).

6. The vision-based printing system according to claim 1, characterized in that, The bottom of the inner side of the frame (1) is horizontally mounted with a first lead screw (13) that can rotate along the Y-axis direction. One end of the first lead screw (13) can be fixedly connected to the motor. The upper end face of the inner side of the frame (1) is symmetrically provided with second limiting slide rails (12) for limiting the movement of the worktable (7) on both sides of the first lead screw (13). The lower end face of the worktable (7) is slidably connected to the second limiting slide rails (12). The lower end face of the movable worktable (7) is provided with a threaded sleeve (71), which is fitted outside the first lead screw (13) and is threadedly connected to the first lead screw (13).

7. The vision-based printing system according to claim 1, characterized in that, A first limiting slide rail (11) is horizontally fixed on one side of the top of the frame (1), and a first slide table (41) capable of reciprocating along the X-axis is installed on the first limiting slide rail (11).

8. The vision-based printing system according to claim 7, characterized in that, A second slide (42) capable of longitudinal movement is provided on one side of the first slide (41), and two third limiting slide rails (421) are longitudinally fixed on the side of the second slide (42) facing the first slide (41). The second slide (42) is slidably connected to the first slide (41) via the third limiting slide rail (421); The top of the second slide (42) is fixed with a drive motor (46), and the output end of the drive motor (46) is provided with a rotatable second lead screw (462). The first slide (41) is mounted on the second lead screw (462), and the first slide (41) and the second lead screw (462) are threadedly connected. The top of the drive motor (46) is provided with a handle (461), and the handle (461) is fixedly connected to one end of the second lead screw (462).

Citation Information

Patent Citations

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