3D printing device with visual defect detection

Abstract

The utility model relates to a kind of 3D printing equipment with visual defect detection, belong to industrial visual detection field.The equipment includes base, 3D printing part and two visual detection parts, linear slide is horizontally arranged in the middle part of base and build plate, and build plate is driven to move left and right by first motor;3D printing part adopts linear guide rail, ball screw and synchronous belt transmission structure, and three-dimensional accurate movement of printing head is realized by cooperation motor drive;Visual detection part is equipped with vertical frame, movable camera support and visual detection camera connected by universal joint, and two visual detection cameras are cross arranged left and right.The utility model realizes the integration of printing and visual defect detection, and can complete detection without taking down part, with compact structure, high degree of automation, the characteristics of comprehensive accurate detection, effectively improve 3D printing part production efficiency and quality control level, applicable to multi-field 3D printing production.

Description

Technical Field

[0001] This utility model relates to the field of industrial visual inspection, and in particular to a 3D printing device with visual defect detection. Background Technology

[0002] With the rapid development of technology, 3D printing, as an important technology in the field of rapid prototyping, has been widely used in various fields such as product design prototyping, manufacturing of complex structural parts, and personalized customization. 3D printing technology, by depositing materials layer by layer, can directly manufacture parts with complex shapes and structures based on three-dimensional model data in a computer, greatly improving manufacturing flexibility and efficiency.

[0003] In current technologies, 3D-printed parts often have varied shapes and complex structures, making it difficult to accurately measure certain dimensions and surface defects using traditional measuring tools. Traditional measurement methods, such as calipers and micrometers, often fail to accurately obtain dimensional data when dealing with parts with complex structures such as curved surfaces, small holes, and internal cavities. Furthermore, they struggle to detect minute surface defects such as cracks, dents, and protrusions. This not only affects the quality assessment of the parts but also increases the risks associated with subsequent processing and use. Additionally, after printing, 3D-printed parts are typically tightly adhered to a build plate. For quality inspection, operators must manually remove the parts from the build plate. This step is not only time-consuming and labor-intensive but also prone to causing additional damage to the parts. Especially for parts with fragile structures or precise dimensions, improper force control during removal can easily lead to deformation or breakage, thus affecting their performance.

[0004] Therefore, developing a 3D printing device with visual defect detection, which integrates visual defect detection function so that workers can complete defect detection without removing the printed parts, thereby improving production efficiency, is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a 3D printing device with visual defect detection, so as to solve the problem of part inspection in existing 3D printing devices. The device includes a base, a 3D printing unit, and two visual inspection units. The base is a rectangular frame structure. The 3D printing unit is located on the left side of the base. The visual inspection units are located at the rear end of the base, one in front and one behind. A linear slide is horizontally arranged in the middle of the base. A build plate is arranged on the linear slide. The 3D printing unit prints the part on the build plate. A first motor is arranged on the left side of the linear slide, and the first motor drives the build plate to move left and right on the linear slide.

[0006] Furthermore, the visual inspection unit includes a vertical frame, which is a rectangular frame structure. A camera bracket is provided above the vertical frame, and a visual inspection camera is connected below the camera bracket.

[0007] Furthermore, the upper end of the camera bracket can move left and right at the top of the vertical frame, and a universal joint is provided at the connection between the camera bracket and the visual inspection camera, which can control the visual inspection camera to turn at different angles.

[0008] Preferably, the visual inspection cameras of the two visual inspection units are arranged in a crisscross pattern to identify different positions of the parts.

[0009] Furthermore, the 3D printing unit includes a support frame, which is a rectangular frame structure. Linear guide rails are vertically arranged on both sides of the support frame, and a working beam is erected between the linear guide rails. A print head is mounted on the working beam, and a ball screw is also mounted on the linear guide rails. A second motor is mounted at the lower end of the ball screw, and the working beam is mounted on the ball screw. The second motor drives the ball screw to rotate, thereby causing the working beam to move up and down along the Z-axis.

[0010] Furthermore, synchronous pulleys are respectively provided at both ends of the working crossbeam, and a synchronous belt is connected between the synchronous pulleys. The print head is connected to the synchronous belt, and the rotation of the synchronous pulleys drives the print head to move left and right along the Y-axis.

[0011] Preferably, the first motor is a servo motor.

[0012] The advantages and beneficial effects of this invention are as follows: By integrating the 3D printing unit and the vision inspection unit into one unit, this invention achieves seamless connection between printing and inspection, significantly improving production efficiency. After printing, the parts do not need to be transferred to other inspection equipment and can be directly subjected to visual defect inspection, reducing intermediate steps and saving time and labor costs. The equipment is equipped with two vision inspection units, and the vision inspection cameras are arranged in a cross configuration, enabling them to capture surface information of the parts from all directions and multiple angles, effectively improving the accuracy and reliability of the inspection. The universal joint design allows the camera to flexibly adjust its angle, further enhancing the flexibility and adaptability of the inspection. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the present invention.

[0015] Figure 2 This is a top view of the present invention.

[0016] Among them, 1-base, 2-3D printing section, 21-support frame, 22-linear guide rail, 23-working crossbeam, 24-print head, 25-ball screw, 26-second motor, 27-synchronous pulley, 28-synchronous belt, 3-vision inspection section, 31-vertical frame, 32-camera bracket, 33-vision camera, 34-universal joint, 4-linear slide, 41-construction plate, 42-first motor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0018] like Figure 1 and Figure 2 The equipment mainly consists of a base 1, a 3D printing unit 2, and two vision inspection units 3.

[0019] The equipment base 1 adopts a rectangular frame structure, providing a stable support platform. A linear slide 4 is horizontally mounted in the middle of the base 1, used to support and move the construction plate 41. A first motor 42, preferably a servo motor, is configured on the left side of the linear slide 4, which is connected to the construction plate 41 through a transmission mechanism, driving the construction plate 41 to move precisely left and right on the linear slide 4.

[0020] The 3D printing unit 2 is located on the left side of the base 1 and is supported by a support frame 21, which is also a rectangular frame structure. Linear guide rails 22 are vertically mounted on both sides of the support frame 21 to guide the vertical movement of the working beam 23. The working beam 23 is positioned between the linear guide rails 22 and has a print head 24 mounted on it, responsible for printing the parts. A ball screw 25 is also mounted on the linear guide rails 22. The lower end of the ball screw 25 is connected to a second motor 26. Driven by the second motor 26, the ball screw 25 rotates, causing the working beam 23 and the print head 24 to move vertically along the Z-axis. Synchronous pulleys 27 are mounted at both ends of the working beam 23, and the synchronous pulleys 27 are connected by a synchronous belt 28. The print head 24 is fixedly connected to the synchronous belt 28, and the rotation of the synchronous pulleys 27 enables the print head 24 to move horizontally along the Y-axis.

[0021] Two vision inspection units 3 are positioned one at the rear and one at the front of the base 1. Each vision inspection unit 3 includes a vertical frame 31, which is a rectangular frame structure. A camera bracket 32 ​​is mounted on top of the vertical frame 31. The camera bracket 32 ​​is designed with a moving mechanism, allowing it to move left and right on the top of the vertical frame 31. A vision inspection camera 33 is connected to the bottom of the camera bracket 32 ​​via a universal joint 34. The universal joint 34 allows the vision inspection camera 33 to be adjusted at multiple angles to capture different perspectives of the part. The vision inspection cameras 33 of the two vision inspection units 3 are arranged in a crisscross pattern to ensure comprehensive coverage of the part surface for accurate visual defect detection.

[0022] Specific usage steps:

[0023] In this embodiment, during the printing process, the print head 24 deposits material layer by layer on the build plate 41 according to a preset path to form a part. After printing is completed, the first motor 42 drives the build plate 41 to move to the right along the linear slide 4 to the visual inspection area. The visual inspection camera 33 of the visual inspection unit 3 performs all-round shooting and inspection of the part through the movement of the camera bracket 32 ​​and the adjustment of the universal joint 34, and identifies and records the defects and dimensional information of the part surface.

[0024] After the inspection is completed, if the part is qualified, the first motor 42 will drive the building plate 41 to move to the left to the part removal position, and the operator can safely and conveniently remove the qualified part from the building plate 41; if the inspection fails, the equipment will issue an alarm or make corresponding marks for subsequent processing.

[0025] The above provides a detailed description of a 3D printing device with visual defect detection provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A 3D printing device with visual defect detection, the device comprising a base (1), a 3D printing section (2) and two visual detection sections (3), characterized in that, The base (1) is a rectangular frame structure. The 3D printing part (2) is located on the left side of the base (1). The visual inspection part (3) is located at the rear end of the base (1) in front and behind respectively. A linear slide (4) is horizontally arranged in the middle of the base (1). A construction plate (41) is arranged on the linear slide (4). A first motor (42) is arranged on the left side of the linear slide (4). The first motor (42) drives the construction plate (41) to move left and right on the linear slide (4).

2. The 3D printing device with visual defect detection of claim 1, wherein, The visual inspection unit (3) includes a vertical frame (31), which is a rectangular frame structure. A camera bracket (32) is provided above the vertical frame (31), and a visual inspection camera (33) is connected below the camera bracket (32).

3. The 3D printing device with visual defect detection of claim 2, wherein, The upper end of the camera bracket (32) can move left and right at the top of the vertical frame (31), and a universal joint (34) is provided at the connection between the camera bracket (32) and the visual inspection camera (33).

4. The 3D printing device with visual defect detection of claim 3, wherein, The visual inspection cameras (33) of the two visual inspection units (3) are arranged crosswise.

5. A 3D printing device with visual defect detection according to any one of claims 1 to 4, characterized in that, The 3D printing unit (2) includes a support frame (21), which is a rectangular frame structure. Linear guide rails (22) are vertically arranged on both sides of the support frame (21). A working crossbeam (23) is erected between the linear guide rails (22). A print head (24) is arranged on the working crossbeam (23). A ball screw (25) is also arranged on the linear guide rails (22). A second motor (26) is arranged at the lower end of the ball screw (25). The working crossbeam (23) is arranged on the ball screw (25).

6. The 3D printing device with visual defect detection of claim 5, wherein, The working beam (23) is provided with synchronous pulleys (27) at both ends, and a synchronous belt (28) is connected between the synchronous pulleys (27). The print head (24) is connected to the synchronous belt (28).

7. A 3D printing device with visual defect detection according to any one of claims 1 to 4, characterized in that, The first motor (42) is a servo motor.

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