Defect detection equipment based on machine vision

Abstract

The utility model relates to defect detection equipment based on machine vision. The defect detection equipment comprises a detection rack and a detection support frame, a visual manipulator assembly is arranged on the detection supporting frame, a feeding and transplanting assembly mechanism is arranged on the detection rack, and the feeding and transplanting assembly mechanism is located below the visual manipulator assembly. During use, the visual manipulator assembly is matched with the feeding and transplanting assembly mechanism to drive the defect detection camera module to perform detection and transplanting actions on a plurality of different surfaces of a detected product in the X-axis, Z-axis, Y-axis and R-axis directions, so that multi-angle dynamic detection is realized; therefore, the purposes of improving the detection precision and improving the detection efficiency are achieved.

Description

[Technical field]

[0001] The utility model applied for in this case relates to the technical field of processing and production equipment, and in particular to a defect detection device based on machine vision for technical defect detection. [Background technology]

[0002] As society continues to progress and develop, the living standards of consumers continue to improve. At the same time, the types of products that consumers need in their daily lives are becoming more and more diverse. In order to meet the quality requirements of consumers' daily products, most products must undergo strict inspection steps before being sold on the market. If products with technical defects are sold on the market, it will seriously damage the image of individuals or companies, or easily reduce the surface quality of products.

[0003] In order to control the surface quality of products, generally, testing equipment is used to perform testing steps. Since most of the existing testing equipment in the prior art adopts a static local magnification range detection method, the surface range of the product to be tested is limited. If other areas of the product surface need to be tested during testing, the product to be tested must be manually moved to achieve the purpose of testing. In this testing process, the testing efficiency is relatively low and the testing accuracy is relatively low. [Utility Model Content]

[0004] In view of this, the technical problem to be solved by the present invention is to provide a defect detection device based on machine vision that can improve detection efficiency and detection accuracy.

[0005] To solve the above technical problems, the technical solution in the utility model provides a defect detection equipment based on machine vision, which includes a detection frame directly placed on the ground, and a detection support frame installed at one end of the detection frame; the detection support frame is provided with a visual manipulator assembly for controlling the movement of the Y-axis and Z-axis directions for detecting the workpiece of the inspected product, and the detection frame is provided with a feeding and transplanting assembly mechanism for conveying the workpiece of the inspected product and moving in the X-axis and R-axis directions; the feeding and transplanting assembly mechanism is located below the visual manipulator assembly; through the cooperation between the visual manipulator assembly and the feeding and transplanting assembly mechanism, multiple surfaces of the inspected product can be inspected.

[0006] It is further defined that the visual manipulator assembly includes a Y-axis module moving mechanism directly installed on the detection support frame for controlling movement in the Y-axis direction, a Z-axis module moving mechanism installed on one side of the Y-axis module moving mechanism, a defect detection camera module installed at the lower end of the Z-axis module moving mechanism, and a visual component module installed at the upper end of the Z-axis module moving mechanism.

[0007] It is further defined that the Y-axis module moving mechanism includes a module base plate directly mounted on the detection support frame, a Y-axis linear module mounted on the module base plate, a transverse module guide rail mounted on the Y-axis linear module, a transverse module slider mounted on the transverse module guide rail for transverse movement, a transverse screw rod mounted on the Y-axis linear module and connected to the transverse module slider, a spiral driven wheel mounted on one end of the transverse screw rod, and a Y-axis servo motor mounted on the Y-axis linear module.

[0008] It is further defined that the Z-axis module moving mechanism includes a Z-axis module bracket plate directly installed on the horizontal module slider, a Z-axis linear module installed inside the Z-axis module bracket plate, a longitudinal guide rail installed on the Z-axis linear module, a longitudinal slider plate installed on the longitudinal guide rail, a motor bracket seat installed on the upper end of the Z-axis module bracket plate, a longitudinal servo motor installed inside the motor bracket seat, a longitudinal reduction wheel connected to the longitudinal servo motor installed inside the motor bracket seat, a reduction driving wheel meshing with the longitudinal reduction wheel, and a longitudinal shaft connected to the reduction driving wheel and the longitudinal slider plate; the longitudinal slider plate drives the longitudinal reduction wheel through the longitudinal servo motor, and the longitudinal reduction wheel drives the longitudinal slider plate to move up and down along the direction of the longitudinal guide rail through the reduction driving wheel.

[0009] It is further defined that the defect detection camera module includes a camera hollow rotating platform mechanism directly fixedly mounted on the lower end of the longitudinal slider plate, a detection camera bracket installed on the hollow rotating platform mechanism, and a defect detection camera installed inside the detection camera bracket; the camera hollow rotating platform mechanism includes a platform bracket seat, a platform servo motor installed inside the platform bracket seat, and a rotating platform installed on the platform servo motor.

[0010] It is further defined that the visual component module includes a visual module bracket installed on the upper end of the motor bracket seat, a transverse mounting rod installed inside the visual module bracket, a camera lens module installed on the transverse mounting rod, and a light source assembly installed around the visual module bracket.

[0011] It is further defined that the feeding and transplanting assembly mechanism includes a feeding and transplanting base plate directly mounted on the detection frame, an X-axis linear module mounted on the feeding and transplanting base plate for controlling the directions of the X-axis and R-axis, an X-axis movable guide rail mounted on the X-axis linear module, a feeding and transplanting sliding block mounted on the X-axis movable guide rail, an X-axis servo motor mounted at one end of the X-axis linear module, a feeding and transplanting rotating shaft mounted inside the X-axis linear module and connected to the feeding and transplanting sliding block; a transplanting hollow rotating platform mechanism mounted on the feeding and transplanting sliding block, and a transplanting fixture carrier mounted on the transplanting hollow rotating platform mechanism; the transplanting hollow rotating platform mechanism includes a hollow bracket directly mounted on the feeding and transplanting sliding block, a hollow servo motor mounted inside the hollow bracket, and a hollow rotating platform mounted inside the hollow bracket and connected to the hollow servo motor.

[0012] The beneficial technical effect of the utility model is as follows: since the detection support frame is provided with a visual manipulator assembly, the detection frame is provided with a feeding and transplanting assembly mechanism, and the feeding and transplanting assembly mechanism is located below the visual manipulator assembly. When in use, the visual manipulator assembly and the feeding and transplanting assembly mechanism cooperate with each other to drive the defect detection camera module to detect multiple different surfaces of the inspected product in the X-axis, Z-axis, Y-axis and R-axis directions, and perform transplanting actions to realize dynamic detection in multiple angles. Compared with similar products in the prior art, it can be seen that the purpose of providing detection accuracy and improving detection efficiency is achieved.

[0013] The technical solution of the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments.

Brief Description of the Drawings

[0014] Figure 1 A three-dimensional diagram of a defect detection device based on machine vision in the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the visual manipulator assembly in the utility model;

[0016] Figure 3 This is a stereoscopic diagram of the use status of the defect detection camera module in the utility model;

[0017] Figure 4 This is a stereoscopic diagram of another usage state of the defect detection camera module in the utility model;

[0018] Figure 5 It is a three-dimensional diagram of the feeding and transplanting assembly mechanism in the utility model;

[0019] Figure 6 This is a three-dimensional diagram of the visual component module in the utility model. [Specific implementation method]

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Please refer to Figures 1 to 6 As shown, a defect detection device based on machine vision is described below in combination with an embodiment, which includes a detection frame 1 directly placed on the ground, a detection support frame 2 installed on one end of the detection frame 1, a visual manipulator assembly 3 arranged on the detection support frame 2, and a plurality of feeding and transplanting assembly mechanisms 4 arranged on the detection frame 1.

[0022] The visual manipulator assembly 3 described in the present application includes a Y-axis module moving mechanism directly mounted on the detection support frame 2 for controlling movement in the Y-axis direction, a Z-axis module moving mechanism mounted on one side of the Y-axis module moving mechanism, a defect detection camera module mounted at the lower end of the Z-axis module moving mechanism, and a visual component module mounted at the upper end of the Z-axis module moving mechanism.

[0023] The Y-axis module moving mechanism includes a module base plate 301 directly mounted on the detection support frame 2, a Y-axis linear module 302 mounted on the module base plate 301, a transverse module guide rail 303 mounted on the Y-axis linear module 302, a transverse module slider 304 mounted on the transverse module guide rail 303 for transverse movement, a transverse screw rod connected to the transverse module slider 304 mounted on the Y-axis linear module 302, a screw driven wheel mounted at one end of the transverse screw rod, and a Y-axis servo motor 305 mounted on the Y-axis linear module 302. The transverse module slider 304 in this case, driven by the Y-axis servo motor 305, drives the Z-axis module moving mechanism to move along the Y-axis direction.

[0024] The Z-axis module moving mechanism includes a Z-axis module bracket plate 401 directly installed on the horizontal module slider 304, a Z-axis linear module 402 installed inside the Z-axis module bracket plate 401, a longitudinal guide rail 403 installed on the Z-axis linear module 402, a longitudinal slider plate 404 installed on the longitudinal guide rail 403, a motor bracket seat 405 installed on the upper end of the Z-axis module bracket plate 401, a longitudinal servo motor 406 installed inside the motor bracket seat 405, a longitudinal reduction wheel connected to the longitudinal servo motor 406 installed inside the motor bracket seat 405, a reduction driving wheel meshing with the longitudinal reduction wheel, and a longitudinal shaft connected to the reduction driving wheel and the longitudinal slider plate 404; the longitudinal slider plate 404 drives the longitudinal reduction wheel through the longitudinal servo motor 406, and the longitudinal reduction wheel drives the longitudinal slider plate 404 to move up and down along the direction of the longitudinal guide rail 403 through the reduction driving wheel. In this case, the longitudinal slider plate 404 is driven by the longitudinal servo motor 406 to drive the defect detection camera module to move up and down along the Z-axis direction.

[0025] The defect detection camera module includes a camera hollow rotating platform mechanism 501 directly fixedly mounted on the lower end of the longitudinal slider plate 404, a detection camera bracket 502 mounted on the hollow rotating platform mechanism 501, and a defect detection camera 503 installed inside the detection camera bracket 502; the camera hollow rotating platform mechanism 501 includes a platform bracket seat, a platform servo motor installed inside the platform bracket seat, and a rotating platform installed on the platform servo motor.

[0026] The visual component module includes a visual module bracket 601 installed on the upper end of the motor bracket seat 405, a horizontal mounting rod 602 installed inside the visual module bracket 601, a camera lens module 603 installed on the horizontal mounting rod 602, and a light source component 604 installed around the visual module bracket 601.

[0027] The feeding and transplanting assembly mechanism 4 described in the present application includes a feeding and transplanting base plate 701 directly mounted on the detection frame 1, an X-axis linear module 702 for controlling the X-axis and R-axis directions mounted on the feeding and transplanting base plate 701, an X-axis movable guide rail 703 mounted on the X-axis linear module 702, a feeding and transplanting sliding block 704 mounted on the X-axis movable guide rail 703, an X-axis servo motor 705 mounted at one end of the X-axis linear module 703, a feeding and transplanting rotating shaft installed inside the X-axis linear module 702 and connected to the feeding and transplanting sliding block 704; a transplanting hollow rotating platform mechanism 706 installed on the feeding and transplanting sliding block 704, and a transplanting fixture carrier 707 installed on the transplanting hollow rotating platform mechanism 706; the transplanting hollow rotating platform mechanism includes a hollow bracket directly mounted on the feeding and transplanting sliding block 704, a hollow servo motor installed inside the hollow bracket, and a hollow rotating platform installed inside the hollow bracket and connected to the hollow servo motor. The feeding and transplanting sliding block 704 in this case is driven by the X-axis servo motor 705 to drive the transplanting support carrier 707 to move along the X-axis direction.

[0028] During installation, the detection support frame 2 is installed on the detection frame 1, and multiple feeding and transplanting assembly mechanisms 4 are installed on the frame 1, and there is a gap between the feeding and transplanting assembly mechanisms 4. The feeding and transplanting assembly mechanisms 4 are located below the visual manipulator assembly. The visual manipulator assembly 3 described in this case is mainly used to control the movement of the inspected product in the Y-axis and Z-axis directions. The feeding and transplanting assembly mechanism 4 described in this case is mainly used to control the movement of the inspected product in the X-axis and R-axis directions.

[0029] When in use, the visual manipulator component 3 cooperates with the feeding and transplanting component mechanism 4 to drive the defect detection camera module to detect multiple different surfaces of the inspected product in the X-axis, Z-axis, Y-axis and R-axis directions, and perform transplanting actions to achieve dynamic detection at multiple angles. Compared with similar products in the prior art, it can be seen that the purpose of providing detection accuracy and improving detection efficiency is achieved.

[0030] In the embodiment of the present case, the product to be inspected is passed from the feeding entrance of the feeding and transplanting assembly mechanism 4 to the transplanting hollow rotating platform mechanism, and then driven by the feeding and transplanting sliding block 704 under the drive of the X-axis servo motor 705 to the position below the visual component module for positioning. After the positioning action is completed, it is transferred to the detection station position, and then the defect detection camera module performs multi-directional, multi-angle and multi-surface inspections on the product to be inspected. After the inspection is completed, the transplanting hollow rotating platform mechanism returns to the unloading position to wait for the purpose of manual material collection. During this inspection process, the feeding and transplanting assembly mechanism 4 uses multiple stations for inspection to improve the inspection efficiency. The visual manipulator assembly 3 described in this case adopts multi-axis direction control, and the camera lens uses a high-resolution camera + telecentric lens for flying inspection, which greatly improves the inspection efficiency and inspection accuracy.

[0031] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the present invention is not limited by this. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention shall be within the scope of the present invention.

Claims

1. A defect detection device based on machine vision, comprising a detection frame directly placed on the ground, and a detection support frame installed on one end of the detection frame; characterized in that: The detection support frame is provided with a visual manipulator assembly for controlling the movement in the Y-axis and Z-axis directions for detecting the inspected product workpiece, and the detection frame is provided with a feeding and transplanting assembly mechanism for conveying the inspected product workpiece and moving in the X-axis and R-axis directions; the feeding and transplanting assembly mechanism is located below the visual manipulator assembly; through the cooperation between the visual manipulator assembly and the feeding and transplanting assembly mechanism, multiple surfaces of the inspected product can be inspected.

2. The defect detection device based on machine vision according to claim 1, characterized in that: The visual robot assembly includes a Y-axis module moving mechanism directly installed on the detection support frame for controlling movement in the Y-axis direction, a Z-axis module moving mechanism installed on one side of the Y-axis module moving mechanism, a defect detection camera module installed at the lower end of the Z-axis module moving mechanism, and a visual component module installed at the upper end of the Z-axis module moving mechanism.

3. The defect detection device based on machine vision according to claim 2, characterized in that: The Y-axis module moving mechanism includes a module base plate directly mounted on the detection support frame, a Y-axis linear module mounted on the module base plate, a transverse module guide rail mounted on the Y-axis linear module, a transverse module slider mounted on the transverse module guide rail for transverse movement, a transverse screw rod mounted on the Y-axis linear module and connected to the transverse module slider, a spiral driven wheel mounted on one end of the transverse screw rod, and a Y-axis servo motor mounted on the Y-axis linear module.

4. The defect detection device based on machine vision according to claim 2, characterized in that: The Z-axis module moving mechanism includes a Z-axis module bracket plate directly installed on the horizontal module slider, a Z-axis linear module installed inside the Z-axis module bracket plate, a longitudinal guide rail installed on the Z-axis linear module, a longitudinal slider plate installed on the longitudinal guide rail, a motor bracket seat installed on the upper end of the Z-axis module bracket plate, a longitudinal servo motor installed inside the motor bracket seat, a longitudinal reduction wheel connected to the longitudinal servo motor installed inside the motor bracket seat, a reduction driving wheel meshing with the longitudinal reduction wheel, and a longitudinal shaft connected to the reduction driving wheel and the longitudinal slider plate; the longitudinal slider plate drives the longitudinal reduction wheel through the longitudinal servo motor, and the longitudinal reduction wheel drives the longitudinal slider plate to move up and down along the direction of the longitudinal guide rail through the reduction driving wheel.

5. The defect detection device based on machine vision according to claim 2, characterized in that: The defect detection camera module includes a camera hollow rotating platform mechanism directly fixed on the lower end of the longitudinal slider plate, a detection camera bracket installed on the hollow rotating platform mechanism, and a defect detection camera installed inside the detection camera bracket; the camera hollow rotating platform mechanism includes a platform bracket seat, a platform servo motor installed inside the platform bracket seat, and a rotating platform installed on the platform servo motor.

6. The defect detection device based on machine vision according to claim 2, characterized in that: The visual component module includes a visual module bracket installed on the upper end of the motor bracket seat, a transverse mounting rod installed inside the visual module bracket, a camera lens module installed on the transverse mounting rod, and a light source component installed around the visual module bracket.

7. The defect detection device based on machine vision according to claim 1, characterized in that: The feeding and transplanting assembly mechanism includes a feeding and transplanting base plate directly mounted on the detection frame, an X-axis linear module mounted on the feeding and transplanting base plate for controlling the directions of the X-axis and R-axis, an X-axis movable guide rail mounted on the X-axis linear module, a feeding and transplanting sliding block mounted on the X-axis movable guide rail, an X-axis servo motor mounted at one end of the X-axis linear module, a feeding and transplanting rotating shaft mounted inside the X-axis linear module and connected to the feeding and transplanting sliding block; a transplanting hollow rotating platform mechanism mounted on the feeding and transplanting sliding block, and a transplanting fixture carrier mounted on the transplanting hollow rotating platform mechanism; the transplanting hollow rotating platform mechanism includes a hollow bracket directly mounted on the feeding and transplanting sliding block, a hollow servo motor mounted inside the hollow bracket, and a hollow rotating platform mounted inside the hollow bracket and connected to the hollow servo motor.

Images