Visual inspection multi-layer automatic disc changing and material receiving machine

Abstract

The invention discloses a visual inspection multi-layer automatic disc changing and material receiving machine, and belongs to the technical field of mechanical automation equipment. The feeding device is arranged on the base and comprises an upper-layer feeding mechanism and a lower-layer feeding mechanism, and each layer of feeding mechanism is configured to conduct limiting conveying on stamping parts; the visual detection device is arranged on an output path of the feeding device, comprises a horizontal detection camera, a vertical detection camera and a corresponding light source, and is used for carrying out size detection and appearance detection on the stamping part; the disc collecting device is arranged on the base and comprises four sets of rotary discs, a rotary disc motor, a lifting base and a lifting motor, and each set of rotary disc is connected with the rotary disc motor so as to receive stamping parts. Online quality detection and automatic classification before material receiving are achieved, the risk that defective products flow out is effectively reduced, automatic identification and marking of the defective products before material receiving are achieved, the defective products are prevented from being mixed into finished products, manual secondary reinspection is not needed, and the production cost is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of mechanical automation equipment technology, and in particular to a vision-inspection multi-layer automatic tray-changing and receiving machine. Background Technology

[0002] During the production of stamped parts, multiple processes are typically required, including stamping, quality inspection, marking, cutting, sampling, and coiling. In traditional manual or semi-automatic production methods, these processes are often independent of each other, requiring manual transfer of products between different workstations. This not only results in high labor intensity and low efficiency but also makes it easy for human error to lead to missed quality inspections or chaotic material handling.

[0003] In the existing technology, some automatic coil collecting machines have emerged for the automatic collection and stacking of stamped parts. However, these automatic coil collecting machines typically only have a single material receiving function and cannot simultaneously perform quality inspection during the receiving process. Whether stamped parts have defects such as dimensional deviations, surface scratches, and burrs still requires subsequent manual visual inspection or separate inspection equipment, which increases labor costs and makes it difficult to achieve real-time feedback and timely loss prevention.

[0004] Furthermore, existing receiving machines have relatively limited functionality. Auxiliary processes such as marking, segmenting, and sampling often require manual intervention before and after receiving. For example, when batch traceability is needed, products must be manually marked; when samples need to be taken for inspection, they must be manually selected from the finished products. This multi-process separation production model increases the difficulty of production management and the need for manual intervention, hindering the achievement of full-process automation.

[0005] Therefore, how to provide an automated device that integrates conveying, testing, marking, cutting, sampling and collecting to improve the integration and automation level of stamping production lines has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a vision inspection multi-layer automatic tray changing and receiving machine. It aims to solve the problems of existing stamping parts receiving machines having a single function, only able to complete the receiving process but unable to perform quality inspection at the same time, resulting in defective products being easily mixed into finished products and requiring manual secondary inspection, as well as the lack of automated auxiliary functions such as marking, cutting, and sampling in existing equipment, resulting in multiple processes requiring additional manual processing and low production efficiency and automation.

[0007] To achieve the above-mentioned objectives, the first aspect of this invention proposes a vision-inspection multi-layer automatic tray-changing and receiving machine, comprising: Base; The feeding device is set on the base and includes upper and lower feeding mechanisms. Each feeding mechanism is configured to limit and convey the stamped parts. A visual inspection device is installed on the output path of the feeding device, including a horizontal inspection camera, a vertical inspection camera and a corresponding light source, for performing dimensional and appearance inspections on the stamped parts. A receiving device, mounted on the base, includes a turntable, a turntable motor, a lifting seat, and a lifting motor. The turntable is provided in four sets, each set of turntables is connected to the turntable motor to receive stamped parts. The lifting seat is used to support the turntable, and the lifting motor is connected to the lifting seat to drive the lifting seat to move up and down. The control box has a built-in programmable logic controller and a host. The programmable logic controller is used to control the start and stop of each motor and pneumatic component. The host is communicatively connected to the programmable logic controller and is used to perform visual inspection by the visual inspection device and provide feedback on the inspection results. The output ends of the upper and lower feeding mechanisms correspond to the two sets of turntables in the collecting device.

[0008] Optionally, the feeding device further includes a lead screw module, with each layer of feeding mechanism fixed on a corresponding lead screw module. The lead screw module is used to adjust the distance between the feeding mechanism and the collecting device.

[0009] Optionally, each layer of the feeding mechanism includes a distance sensor, a guide wheel, a first sliding block, and a screw. The distance sensor is located at the inlet of the feeding mechanism and is communicatively connected to the control box. The guide wheel is mounted on the first sliding block, and the first sliding block is connected to the screw.

[0010] Optionally, the visual inspection device further includes a first three-axis manual slide and a second three-axis manual slide. The horizontal inspection camera is fixed on the first three-axis manual slide, and the vertical inspection camera is fixed on the second three-axis manual slide. Both the first three-axis manual slide and the second three-axis manual slide are configured to be able to adjust their positions in the X-axis, Y-axis, and Z-axis directions.

[0011] Optionally, the winding device is fixed to the winding screw, the lifting motor drives the winding screw to rotate, and the winding screw is fitted with a screw nut, which is connected to the lifting seat.

[0012] Optionally, the control box is configured to: when one of the two sets of turntables corresponding to the upper and lower feeding mechanisms has finished collecting material, control the lifting motor to switch to the other set of turntables for collecting material.

[0013] Optionally, it also includes a marking component disposed on the feeding device. The marking component includes a first cylinder and a second sliding block. The second sliding block is provided with a protrusion. The first cylinder drives the second sliding block to move so that the protrusion contacts the surface of the stamped part to form a mark.

[0014] Optionally, it also includes a cutting assembly and a sampling assembly disposed on the feeding device. The cutting assembly includes a second cylinder, a blade and a fixed seat. The blade is fixed on the fixed seat, and the stamping part passes through the fixed seat. The second cylinder drives the blade to slide in the fixed seat to cut the stamping part. The sampling assembly includes a third cylinder, a sliding plate, and a sampling box. The third cylinder is connected to the sliding plate and is used to drive the sliding plate to move and guide the broken stamped part to the sampling box.

[0015] Optionally, the receiving device further includes a positioning column, which is mounted on the lifting base and matched with the turntable for positioning the turntable.

[0016] Optionally, the guide wheel can change the position of the first sliding block by adjusting the screw to adjust the limiting width of the stamping part.

[0017] The beneficial effects of this invention are: 1. The visual inspection multi-layer automatic tray-changing receiving machine of the present invention realizes online quality inspection and automatic classification before receiving, effectively reducing the risk of defective products flowing out. By setting a visual inspection device on the output path of the feeding device, a horizontal inspection camera and a vertical inspection camera are used to perform all-round inspection of the size and appearance of the stamped parts, and the inspection results are fed back to the control box in real time. The host in the control box determines whether the product is qualified according to the inspection results, and can be linked with the subsequent marking component to realize the automatic identification and marking of defective products before receiving, avoiding defective products from being mixed with finished products, eliminating the need for manual secondary inspection, and effectively reducing quality risks and production costs.

[0018] 2. The visual inspection multi-layer automatic tray-changing receiving machine of the present invention realizes independent conveying of upper and lower layers and alternating receiving of materials by four sets of turntables, greatly improving the receiving efficiency. Specifically, it adopts a design of upper and lower two-layer feeding mechanism, each layer can independently convey stamped parts, and corresponds to the four sets of turntables in the receiving device. Through intelligent control of the lifting motor by the control box, when one set of turntables is full, it can automatically switch to another empty set of turntables on the same layer to continue receiving materials. The whole process does not require machine stoppage, realizing uninterrupted receiving and significantly improving the receiving efficiency per unit time.

[0019] 3. The visual inspection multi-layer automatic tray-changing and receiving machine of the present invention enables rapid adaptation to products of different specifications, enhancing the versatility of the equipment. In this application, each layer of the feeding mechanism is equipped with a lead screw module, which can adjust the distance between the feeding mechanism and the receiving device according to the product specifications. Simultaneously, the guide wheels achieve rapid adjustment of the limit width through the cooperation of the screw and sliding block. Furthermore, the horizontal and vertical inspection cameras in the visual inspection device are respectively mounted on a three-axis manual slide, allowing for precise position adjustment in the X, Y, and Z axes. This enables the equipment to quickly adapt to stamped parts of different sizes and shapes without the need for complex tooling changes, greatly improving the versatility and flexibility of the equipment.

[0020] 4. The visual inspection multi-layer automatic tray-changing receiving machine of the present invention integrates a marking component, a cutting component, and a sampling component on the feeding device. When batch traceability is required, the marking component can form a mark on the surface of the stamped part; when segmentation or sampling is required, the cutting component can automatically separate continuous product strips, and the samples are guided to the sampling box by the sampling component for retention. Through the integration of the above functional modules, the traditional manual post-processing process is replaced, reducing manual intervention, lowering labor intensity, and improving the automation level and overall production efficiency of the production line. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the vision inspection multi-layer automatic tray changing and receiving machine of the present invention; Figure 2 This is a schematic diagram of the feeding device and the visual inspection device of the visual inspection multi-layer automatic tray changing and receiving machine of the present invention. Figure 3 This is a schematic diagram of the tray receiving device structure of the visual inspection multi-layer automatic tray changing and receiving machine of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the tray receiving device structure of the visual inspection multi-layer automatic tray changing and receiving machine of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the feeding mechanism of the vision inspection multi-layer automatic tray changing and receiving machine of the present invention.

[0022] Explanation of reference numerals in the attached figures: 1. Feeding device; 2. Vision inspection device; 3. Rewinding device; 4. Control box; 5. Base; 6. Distance sensor; 7. Guide wheel; 8. Horizontal inspection camera; 9. Vertical inspection camera; 10. First cylinder; 11. Second cylinder; 12. Third cylinder; 13. First sliding block; 14. Screw; 15. First three-axis manual slide; 17. Second three-axis manual slide; 19. Second sliding block; 20. Blade; 21. Fixed seat; 22. Sliding plate; 23. Sampling box; 24. Turntable motor; 25. Positioning column; 26. Turntable; 27. Lifting seat; 28. Lifting motor; 29. ​​Rewinding screw; 30. Screw nut.

[0023] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Reference Figures 1-5 An embodiment of the present invention provides a vision inspection multi-layer automatic tray changing and receiving machine, including a feeding device 1 for conveying stamped parts, a vision inspection device 2 for detecting product defects, a tray receiving device 3 for classifying and collecting finished products, and a control box 4 for overall control of the entire process. All the above components are integrated and fixed on a base 5 to form a compact and efficient automated production line.

[0027] refer to Figure 1 and Figure 2The feeding device 1 adopts a double-layer feeding mechanism design, with each layer capable of independently performing functions such as limiting, conveying, and pre-processing the stamped parts. This double-layer layout significantly improves the material collection efficiency per unit time and facilitates multi-station docking with the subsequent receiving device 3. Specifically, each feeding mechanism is equipped with guide wheels 7, a first sliding block 13, and a screw 14. The guide wheels 7 are mounted on the first sliding block 13, and the operator can precisely adjust the position of the first sliding block 13 by rotating the screw 14, thereby changing the distance between the two guide wheels 7. This structure allows for rapid adjustment of the limiting range according to the width of different stamped parts, ensuring that the stamped parts maintain a straight path during conveying and preventing deviation from affecting the accuracy of subsequent inspection or material collection. A distance sensor 6 is also installed at the feed inlet. This sensor is connected to the control box 4 and can monitor the feeding speed of the stamped parts in real time. The control box 4 adjusts the conveying speed of the feeding mechanism accordingly, realizing intelligent matching with the production cycle of the front-end stamping machine, and preventing material accumulation or no-load due to speed mismatch.

[0028] Furthermore, to accommodate the spacing between stamped parts output from different molds and the receiving device 3, the feeding device 1 also includes a lead screw module, with each feeding mechanism fixed to its corresponding lead screw module. By driving the lead screw module, the position of the feeding mechanism relative to the receiving device 3 can be adjusted as a whole, ensuring that the output ends of the upper and lower feeding mechanisms can accurately correspond to the turntable 26 in the receiving device 3, providing a positional basis for efficient material receiving.

[0029] refer to Figure 1 and Figure 2 A visual inspection device 2 is installed on the output path of the feeding device 1 to perform online inspection of the stamped parts in transit. This device includes a horizontal inspection camera 8, a vertical inspection camera 9, and their respective light sources. The horizontal inspection camera 8 captures side views of the stamped parts to detect their side profile dimensions and shape defects; the vertical inspection camera 9 acquires top views of the stamped parts to detect their front features, hole dimensions, and surface defects. Through combined inspection in both directions, comprehensive quality monitoring of the stamped parts can be achieved. Its advantages include the ability to promptly remove or mark defective products before receiving them, avoiding subsequent manual re-inspection and effectively controlling quality risks.

[0030] To meet the inspection needs of stamped parts of different specifications, the vision inspection device 2 also incorporates a first three-axis manual slide 15 and a second three-axis manual slide 17. A horizontal inspection camera 8 is fixed on the first three-axis manual slide 15, and a vertical inspection camera 9 is fixed on the second three-axis manual slide 17. Operators can easily and independently adjust the positions of the two cameras in the X, Y, and Z axes, thereby precisely focusing on the critical inspection areas of the stamped parts and ensuring the clarity and accuracy of image acquisition.

[0031] After visual inspection, the stamped part is fed into the receiving device 3. For example... Figure 3 and Figure 4 As shown, the receiving device 3 comprises four sets of turntables 26, a lifting seat 27, and corresponding drive mechanisms. The first and second sets of turntables 26 receive stamped parts from the upper feeding mechanism, while the third and fourth sets receive stamped parts from the lower feeding mechanism. Each turntable 26 is independently connected to a turntable motor 24, which rotates the turntable 26 during receiving, ensuring the stamped parts fall neatly into the tray. All turntables 26 are mounted on the lifting seat 27, which is connected to the receiving screw 29 assembly driven by the lifting motor 28. Specifically, the lifting motor 28 drives the receiving screw 29 to rotate, and the screw nut 30 converts the rotational motion into linear motion, thereby driving the connected lifting seat 27 to rise and fall. The advantage of this structure is that, through the overall lifting of the lifting seat 27, the surface of the target turntable 26 can be precisely adjusted to a receiving height flush with the output end of the feeding device 1, ensuring the stamped parts fall smoothly into the tray. The positioning column 25 is installed on the lifting base 27 and matches the positioning hole at the bottom of the turntable 26. This ensures the positional accuracy and stability of the turntable 26 during rotation and lifting, and prevents material collection from being disordered due to shaking.

[0032] Control box 4 integrates a programmable logic controller (PLC) and a main unit. The PLC is responsible for precisely controlling the start-stop sequence of various actuators such as motors and cylinders according to a preset program; the main unit is dedicated to running the vision inspection algorithm, processing images captured by the camera, and providing a "pass" or "fail" judgment. The main unit and PLC interact in real time via communication. For example, when the main unit detects a defective product, it can immediately send a signal to the PLC, which can then control the subsequent marking components to mark it. Furthermore, the main unit calculates the defect rate in real time during continuous inspection. Once this value exceeds a preset threshold, the main unit will send an alarm signal to the PLC, controlling the equipment to stop or issuing an audible and visual alarm to prompt operators to check the mold or process status in a timely manner, avoiding excessive losses. This achieves closed-loop control of detection and action, as well as quality early warning functions.

[0033] The feeding device 1 also integrates a variety of functional components to replace traditional manual post-processing procedures. For example, the marking component includes a first cylinder 10 and a second sliding block 19, with raised dots on the second sliding block 19. When a defective product signal is received or batch marking is required, the first cylinder 10 drives the second sliding block 19 to move, causing its raised dots to contact the surface of the stamped part, forming a tiny indented mark, providing a clear visual mark for subsequent manual sorting or traceability.

[0034] To meet the needs of sampling inspection or product segmentation, the feeding device 1 is also equipped with a cutting assembly and a sampling assembly. The cutting assembly includes a second cylinder 11, a blade 20, and a fixed seat 21. The stamped part passes through the fixed seat 21. When it needs to be separated, the second cylinder 11 drives the blade 20 to slide within the fixed seat 21, thereby quickly and neatly cutting the continuous stamped part. The sampling assembly includes a third cylinder 12, a sliding plate 22, and a sampling box 23. After the cutting operation is completed, the third cylinder 12 drives the sliding plate 22 to move, changing the path of the falling product and guiding the separated stamped part sample into the sampling box 23, realizing automatic sampling and eliminating the trouble of manual cutting and collection.

[0035] During the operation of the entire machine, the control logic ensures seamless switching of material receiving. The PLC in the control box 4 is configured such that when a set of turntables 26 currently receiving material, corresponding to the upper or lower feeding mechanism, reaches a preset number (i.e., full turntable), the PLC first controls the marking component, cutting component, and sampling component on the feeding device 1 to operate sequentially, marking, cutting, and sampling the last stamped part. Then, it controls the lifting motor 28 to operate, driving the lifting seat 27 to rise or fall one position, so that another set of empty turntables 26 on the same layer switches to the material receiving position. The whole process is continuous and automatic, without the need for manual intervention.

[0036] It should be noted that the turntable motor 24 driving the turntable 26 can be a stepper motor or a servo motor to achieve more precise angle control; the lead screw module used to adjust the position of the feeding mechanism can also be replaced with a combination of a linear guide rail with a locking function and a handwheel for manual adjustment. For example, in applications with less demanding requirements, the width adjustment of the guide wheel 7 can also use a spring-driven automatic centering mechanism instead of the lead screw adjustment of the screw 14. The spring force allows the guide wheel 7 to adaptively clamp stamped parts of different widths, making operation more convenient. For the first cylinder 10 in the marking assembly, if the stamped part is made of a hard material, it can also be replaced with a small stamping machine or a laser marking machine to form clearer, permanent markings.

[0037] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A vision-inspection multi-layer automatic tray-changing and receiving machine, characterized in that, include: Base (5); The feeding device (1) is set on the base (5) and includes two layers of feeding mechanisms, each of which is configured to limit and convey the stamped parts. A visual inspection device (2) is set on the output path of the feeding device (1), including a horizontal inspection camera (8), a vertical inspection camera (9) and a corresponding light source, for performing dimensional and appearance inspection on the stamped parts; The receiving device (3) is set on the base (5) and includes a turntable (26), a turntable (26) motor (24), a lifting seat (27) and a lifting motor (28). The turntable (26) is provided in four groups. Each group of turntables (26) is connected to the turntable (26) motor (24) to receive the stamped parts. The lifting seat (27) is used to support the turntable (26). The lifting motor (28) is connected to the lifting seat (27) and is used to drive the lifting seat (27) to lift. The control box (4) has a built-in programmable logic controller and a host. The programmable logic controller is used to control the start and stop of each motor and pneumatic component. The host is connected to the programmable logic controller and is used to perform visual inspection of the visual inspection device (2) and feed back the inspection results. The output ends of the upper and lower feeding mechanisms correspond to the two sets of turntables (26) in the receiving device (3).

2. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, The feeding device (1) also includes a lead screw module. Each layer of feeding mechanism is fixed on the corresponding lead screw module. The lead screw module is used to adjust the distance between the feeding mechanism and the collecting device (3).

3. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, Each layer of the feeding mechanism includes a distance sensor (6), a guide wheel (7), a first sliding block (13) and a screw (14). The distance sensor (6) is located at the inlet of the feeding mechanism and is connected to the control box (4). The guide wheel (7) is mounted on the first sliding block (13), and the first sliding block (13) is connected to the screw (14).

4. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, The visual inspection device (2) further includes a first three-axis manual slide (15) and a second three-axis manual slide (17). The horizontal inspection camera (8) is fixed on the first three-axis manual slide (15), and the vertical inspection camera (9) is fixed on the second three-axis manual slide (17). Both the first three-axis manual slide (15) and the second three-axis manual slide (17) are configured to be able to adjust their positions in the three directions of X-axis, Y-axis and Z-axis.

5. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, The coiling device (3) is fixed on the coiling screw (29). The lifting motor (28) drives the coiling screw (29) to rotate. The coiling screw (29) is fitted with a screw nut (30), which is connected to the lifting seat (27).

6. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, The control box (4) is configured such that when the current set of turntables (26) that is receiving material completes receiving material, the lifting motor (28) is controlled to switch to the other set of turntables (26) for receiving material.

7. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, It also includes a marking assembly disposed on the feeding device (1), the marking assembly including a first cylinder (10) and a second sliding block (19), the second sliding block (19) being provided with protrusions, the first cylinder (10) driving the second sliding block (19) to move, so that the protrusions contact the surface of the stamped part to form a mark.

8. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, It also includes a cutting assembly and a sampling assembly disposed on the feeding device (1). The cutting assembly includes a second cylinder (11), a blade (20) and a fixed seat (21). The blade (20) is fixed on the fixed seat (21). The stamping part passes through the fixed seat (21). The second cylinder (11) drives the blade (20) to slide in the fixed seat (21) to cut the stamping part. The sampling assembly includes a third cylinder (12), a sliding plate (22), and a sampling box (23). The third cylinder (12) is connected to the sliding plate (22) and is used to drive the sliding plate (22) to move and guide the broken stamped part to the sampling box (23).

9. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 1, characterized in that, The receiving device (3) further includes a positioning column (25), which is installed on the lifting seat (27) and matched with the turntable (26) for positioning the turntable (26).

10. The vision inspection multi-layer automatic tray-changing and receiving machine according to claim 3, characterized in that, The guide wheel (7) changes the position of the first sliding block (13) by adjusting the screw (14) to adjust the limiting width of the stamping part.

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