Self-cleaning detection system and method of use thereof

Abstract

The application relates to the technical field of machining centers, and discloses a self-cleaning detection system and a use method thereof, which comprises a circulating conveyor, a feeding mechanism and a discharging mechanism, and a cleaning machine and a measuring mechanism are arranged on the side of the circulating conveyor; the cleaning machine comprises a rack with a cleaning space inside, and a cleaning air-drying device arranged in the cleaning space; the cleaning air-drying device is used for positioning workpieces and sequentially washing and air-drying the workpieces; and the circulating conveyor is further provided with a mechanical transfer mechanism. The cleaning air-drying device is arranged, so that after the workpieces are installed on the fixing structure, the workpieces are washed by the cleaning structure; the relative cost is lower; and the impact of water on the surface of the workpieces can wash away stubborn dust, and the cleaning is completed; after the cleaning is completed, the water stains on the surface of the workpieces are blown dry by the air-drying fixing structure without moving the workpieces until the workpieces are completely air-dried, so that the use of the equipment is reduced, the washing and air-drying time is shortened, the cost is reduced, and the efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of machining center technology, and in particular to a self-cleaning detection system and its usage method. Background Technology

[0002] Mechanical manufacturing refers to the process of altering the shape, size, or properties of a workpiece using mechanical equipment. This process occupies a core position in manufacturing. It mainly includes two categories: cutting and pressure processing. Cutting removes excess metal material from the workpiece through the relative movement of a cutting tool and the workpiece to obtain the desired shape, size, and surface quality. Pressure processing, on the other hand, uses external force to induce plastic deformation in the metal material, thereby changing its shape and size.

[0003] During workpiece machining, workpieces often undergo cutting, grinding, drilling, and other processes, generating debris and dust during material removal. This debris and dust adhere to the workpiece surface; similarly, machining workshops typically experience high levels of dust due to environmental factors, which also easily adhere to workpiece surfaces. To ensure workpiece cleanliness, maintain its appearance quality and performance, and meet the requirements of subsequent processing steps, it is usually necessary to clean the dust and debris from the workpiece surface.

[0004] In traditional workpiece cleaning methods, ultrasonic cleaning plays a crucial role. This method involves immersing the workpiece in water, where the bursting of tiny bubbles generated by high-frequency sound wave vibrations effectively removes dirt from the workpiece surface, achieving the cleaning purpose. However, ultrasonic cleaning requires a certain amount of time to ensure the cleaning effect, resulting in a longer cleaning time and relatively slower processing speed. The investment, use, and maintenance costs of ultrasonic cleaning equipment are also relatively high, increasing the operating costs of enterprises. Furthermore, after ultrasonic cleaning, the workpiece needs to be retrieved and transferred to keep its surface dry, which increases processing time and further reduces efficiency. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a self-cleaning detection system and its usage method to solve the problems of low efficiency and high cost of ultrasonic cleaning of workpieces.

[0006] To solve the above-mentioned technical problems, the present invention provides a self-cleaning inspection system comprising a circulating conveyor for transporting workpieces along a conveying direction, a feeding mechanism disposed at a feeding end of the circulating conveyor, and a discharging mechanism disposed at a discharging end of the circulating conveyor. A cleaning machine for cleaning workpieces at the feeding end and a measuring mechanism for inspecting workpiece performance are sequentially arranged on the side of the circulating conveyor along the conveying direction. The cleaning machine includes a frame forming a cleaning space inside and a cleaning and drying device disposed within the cleaning space for positioning the workpiece. The cleaning and drying device is used for positioning, rinsing, and drying the workpiece, and a fixed structure ensures that the workpiece remains stationary during the cleaning and drying process. The circulating conveyor also includes a mechanical transfer mechanism that sequentially transfers the workpiece from the circulating conveyor to the cleaning machine and the measuring mechanism, and after cleaning or inspection, transfers the workpiece back to the circulating conveyor for continued transport. By using water mist rinsing, the workpiece can be rinsed and dried without transferring it, thus completing the workpiece cleaning process. This not only greatly improves cleaning efficiency but also has relatively low cost.

[0007] Furthermore, the cleaning and drying device includes a fixing structure for positioning the workpiece, a cleaning structure for spraying water onto the surface of the workpiece, and a drying structure for drying the workpiece. The fixing structure fixes the workpiece, and the cleaning structure and drying structure rinse and dry the workpiece sequentially to reduce the use of the device, save costs, and ensure the cleanliness of the workpiece.

[0008] Furthermore, the fixing structure includes at least two positioning parts. The size of the installation space of the positioning parts can be adjusted according to the size of the workpiece, and the relative movement of the two positioning parts is controlled by a driving device to realize the loosening and clamping of the workpiece. The positioning part includes a pair of symmetrically arranged positioning frames, and multiple limiting points are provided between the positioning frames. The limiting points contact the edge of the workpiece to achieve line contact positioning. At least one limiting point contacts the workpiece in an elastic contact to reduce friction of the workpiece during the positioning process and reduce wear on the workpiece.

[0009] Furthermore, the fixing structure also includes a drive unit mounted on the frame. The drive unit includes multiple second drive members connected to the frame, a motion unit disposed on the frame and extending into the cleaning space, and a connecting plate located in the cleaning space and connected to the motion unit. Each second drive member is used to drive the motion unit to move the connecting plate back and forth along a cleaning direction to facilitate comprehensive cleaning of the workpiece. The positioning part is mounted on the connecting plate, and a limiting buffer part is provided on the connecting plate to abut against the positioning part to reduce damage to the workpiece when the positioning part is disassembled.

[0010] Furthermore, the cleaning structure is configured as two symmetrically arranged on both sides of the fixed structure along a direction perpendicular to the cleaning direction; both cleaning structures include a bracket connected to the inner wall of the cleaning space and at least one water jet installed on the side of the bracket facing the fixed structure. The water jet spray range covers the workpiece along its length. The water jet spray range is within the moving range of the fixed structure on the second driving member driving the connecting plate, so that the water jet can rinse the moving workpiece.

[0011] Furthermore, the air-drying structure is configured as two and is respectively set on the side of the two supports facing the fixed structure. The air-drying structure includes at least one air knife, which is arranged parallel to the water knife along the cleaning direction so that the air knife dries the moving workpiece.

[0012] Furthermore, the cleaning machine also includes a collection box mounted on the frame for collecting wastewater in the cleaning space, and a circulating water supply structure movably mounted on the frame. The circulating water supply structure includes a recycling filter section that connects the cleaning space and the collection box, and a water supply section that connects the recycling filter section and the cleaning structure. The recycling filter section is used to recycle filtered wastewater and send the filtered wastewater to the water supply section. The water supply section is used to supply water to the cleaning structure to facilitate the collection of wastewater and the circulation of water. The water supply section is equipped with movable rollers to facilitate the movement and maintenance of the structure.

[0013] Furthermore, the circulating conveyor includes a support frame, a first conveyor mounted on the support frame and arranged along the conveying direction, and a second conveyor mounted on the support frame and arranged parallel to the first conveyor. The first conveyor has an inlet end and an outlet end and is used to move the carrier along the conveying direction. The second conveyor has a first input end on the same side as the inlet end and a first output end on the same side as the outlet end and is used to move the carrier in the opposite direction along the conveying direction. The mechanical transfer mechanism is arranged on the support frame to pick up and place workpieces and trays relative to the first conveyor, thereby conveying workpieces. The loading mechanism includes a first transfer machine arranged on the inlet end of the first conveyor. The first transfer machine is used to transfer the empty carrier on the first output end of the second conveyor to the inlet end of the first conveyor. The unloading mechanism includes a second transfer machine arranged on the outlet end of the first conveyor. The second transfer machine is used to transfer the empty carrier on the outlet end of the first conveyor to the first input end of the second conveyor, so as to cooperate with the first and second conveyors to circulate and convey the carrier.

[0014] Furthermore, the circulating conveyor also includes a third conveyor mounted on the frame and spaced parallel to the first and second conveyors. The third conveyor has a second input end and a second output end and is used to convey empty material trays along the conveying direction. A material-taking position is located at the position of the first conveyor directly opposite the third conveyor. A detection and protection platform is provided on the side of the material-taking position, located between the cleaning machine and the measuring mechanism, to facilitate preliminary inspection of the workpieces. The feeding mechanism also includes a feeding machine located on one side of the first transfer machine, which supports and moves individual workpieces to the feed end of the first conveyor. The unloading mechanism also includes an unloading machine located on one side of the second transfer machine, which conveys undamaged workpieces and damaged workpieces respectively, thereby achieving intelligent cleaning and inspection of the workpieces.

[0015] This invention also provides a method for using the self-cleaning detection system, comprising the following steps:

[0016] Material preparation: First, the logistics trolley transfers the pallet loaded with workpieces to the feeder. Then, the feeder transfers the single workpiece to the empty pallet and the pallet with the single workpiece to the carrier on the feed end of the first conveyor.

[0017] Material cleaning: The mechanical transfer mechanism moves the workpiece on the material tray at the feed end to the cleaning machine, where the cleaning machine rinses and dries the workpiece. During this process, the mechanical transfer mechanism transfers the empty material tray to the second input end, and the third conveyor transports the empty material tray to the second output end and then stops.

[0018] One-time inspection: After the workpiece is cleaned, the mechanical transfer mechanism transfers the workpiece in the cleaning machine to the carrier. The first conveyor drives the carrier to the material picking position. The inspection personnel or equipment inspect the workpiece at the material picking position from the inspection protective table. For undamaged workpieces, they are put back on the carrier and the conveying continues.

[0019] Secondary inspection: The mechanical transfer mechanism transfers the inspected workpiece to the measuring mechanism. During the workpiece inspection process, the mechanical transfer mechanism transfers the empty tray on the second output end to the carrier. After the workpiece inspection is completed, the mechanical transfer mechanism takes out the workpiece from the measuring mechanism and places it on the tray.

[0020] Material output: The first conveyor moves the inspected carrier to the discharge end. The mechanical transfer mechanism transfers the tray containing the workpiece on the carrier to the corresponding position of the unloading machine according to the inspection results and outputs it. During this process, the empty carrier is transferred by the first conveyor to the second transfer machine. The second transfer machine transfers the empty carrier to the first input end, and the second conveyor reverses the conveying direction to transfer the empty carrier back to the first transfer machine, thus forming a carrier cycle.

[0021] The above method enables the cleaning, inspection, and cyclical transport and use of workpieces, achieving high overall efficiency and allowing each process to proceed in an orderly manner.

[0022] The self-cleaning inspection system and its method of use of the present invention have at least the following beneficial effects: by setting up a cleaning and drying device, after the workpiece is installed on a fixed structure, the cleaning structure rinses the workpiece on the fixed structure, which is lower in cost than ultrasonic cleaning, and the impact of water on the surface of the workpiece can wash away more stubborn dust and debris, thus completing the cleaning; after cleaning, without moving the workpiece, the water stains on the surface of the workpiece are dried by the drying fixed structure until it is completely dry, thereby reducing the use of equipment, speeding up the cleaning and drying time, reducing costs, and improving efficiency. Attached Figure Description

[0023] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0024] Figure 1 This is a schematic diagram of the self-cleaning detection system of the present invention;

[0025] Figure 2 This is a top view of the self-cleaning detection system of the present invention;

[0026] Figure 3 This is a schematic diagram of the feeding mechanism of the present invention;

[0027] Figure 4 This is a partial structural schematic diagram of the circulating conveyor and the detection and protection platform of the present invention;

[0028] Figure 5 This is a schematic diagram of the discharge end and unloading mechanism of the circulating conveyor of the present invention;

[0029] Figure 6 This is a schematic diagram of the cleaning machine of the present invention;

[0030] Figure 7 This is a schematic diagram of the cleaning machine of the present invention from another angle after the door is opened;

[0031] Figure 8 This is a schematic diagram of the cleaning and drying device and the recycling box of the present invention;

[0032] Figure 9 This is a schematic diagram of the cooperation structure of the positioning part, cleaning structure and air drying structure of the invention;

[0033] Figure 10 for Figure 9An enlarged view of part A shown;

[0034] Figure 11 for Figure 9 A schematic diagram of the fit between the structure and the workpiece.

[0035] The meanings of the labels in the attached diagram are as follows:

[0036] Frame-1; First partition-11; First baffle-12; Water collection hole-13; Second baffle-14; Third baffle-15; Cleaning space-16; Door-17;

[0037] Cleaning and drying device-2; Fixed structure-21; Positioning part-211; First driving component-2111; Base plate-2112; Vertical plate-2113; Elastic rubber block-2114; First rubber block-21141; Second rubber block-21142; Guide surface-21143; Limiting rod-2115; Driving part-212; Second driving component-2121; Motor-21211; Pulley assembly-21212; Moving part-2122; Slide rail-21221; Second connecting block-21222; Connecting frame plate-21223; Slide rod-21224; Linear guide rail-21225; Connecting plate-2123; Limiting buffer part-2124; Cleaning structure-22; Bracket-221; Mounting plane-222; Water jet-223; Drying structure-23; Air knife-231;

[0038] Alarm indicator light -3;

[0039] Collection Box - 4;

[0040] Circulating water supply structure-5; Recycling filter section-51; Drain pipe-511; Filter box-512; Filter hole-513; Water supply section-52; Water tank-521; Water pump-522;

[0041] Circulating conveyor-6; Support frame-61; First conveyor-62; Feed end-621; Discharge end-622; Pick-up position-623; First detection position-624; Second detection position-625; Second conveyor-63; First input end-631; First output end-632; Third conveyor-64; Second input end-641; Second output end-642; Detection protective platform-65; Protective net-651; Pick-up window-652; Protective space-653; Secondary protective net-654;

[0042] Feeding mechanism - 7; First transfer machine - 71; First support - 711; First lifting group - 712; Fourth conveyor - 713; Feeding machine - 72; First cabinet - 721; Fifth conveyor - 722; Demolding assembly - 723; Second support - 7231; First linear module - 7232; Second linear module - 7233; Clamping part - 7234; Connecting plate - 72341; Cylinder - 72342; Clamping block - 72343;

[0043] Material unloading mechanism - 8; Second transfer machine - 81; Third support - 811; Second lifting group - 812; Sixth conveyor - 813; Material unloading machine - 82; Second cabinet - 821; Seventh conveyor - 822;

[0044] Measurement mechanism-9; Comparison measuring machine-91; UMP measuring instrument-92;

[0045] Mechanical transfer mechanism -10; First six-axis robot -101; Second six-axis robot -102; Third six-axis robot -103; Fourth six-axis robot -104. Detailed Implementation

[0046] The invention will now be further described with reference to the accompanying drawings.

[0047] like Figures 1 to 11As shown, the self-cleaning detection system of the present invention includes a circulating conveyor 6 that intermittently transports workpieces along a conveying direction, a feeding mechanism 7 disposed on a feeding end 621 of the circulating conveyor 6, a discharging mechanism 8 disposed on a discharging end 622 of the circulating conveyor 6, a cleaning machine disposed on the side of the circulating conveyor 6, and a measuring mechanism 9 disposed on the side of the circulating conveyor 6. The circulating conveyor 6 also includes a mechanical transfer mechanism 10. The cleaning machine and the measuring mechanism 9 are arranged sequentially along the conveying direction, and the cleaning machine is closer to the feeding end 621 of the circulating conveyor 6 in the conveying direction, while the measuring mechanism 9 is closer to the discharging end 622 of the circulating conveyor 6 in the conveying direction. In use, the feeding mechanism 7 transfers the tray containing the workpiece to the feed end 621 of the circulating conveyor 6. The mechanical transfer mechanism 10 moves the workpiece from the feed end 621 to the cleaning machine. After cleaning, fixing, rinsing, and drying, the mechanical transfer mechanism 10 removes the cleaned workpiece. The circulating conveyor 6 continues to transport the workpiece along the conveying direction until the mechanical transfer mechanism 10 transfers the workpiece to the measuring mechanism 9. The measuring mechanism 9 tests the performance of the workpiece, and then the mechanical transfer mechanism 10 removes the workpiece from the measuring mechanism 9. The workpiece is conveyed to the circulating conveyor 6, which transports it to the discharge end 622. Finally, the mechanical transfer mechanism 10 transfers the workpiece to the unloading mechanism 8, completing the automatic cleaning and inspection of the workpiece. The entire process is carried out by the mechanical transfer mechanism 10, which sequentially transfers the workpieces on the circulating conveyor 6 to the cleaning machine, the measuring mechanism 9, and the unloading mechanism 8. The cleaning machine and the measuring mechanism 9 then transfer the cleaned or inspected workpieces back to the circulating conveyor 6, completing the workpiece transfer process and thus improving production efficiency.

[0048] In this embodiment, the circulating conveyor 6 includes a support frame 61, a first conveyor 62 mounted on the support frame 61 and arranged along the conveying direction, a second conveyor 63 mounted on the support frame 61 and arranged parallel to the first conveyor 62, and a third conveyor 64 disposed on the frame and spaced apart from the first conveyor 62 and the second conveyor 63. The first conveyor 62 has a feed end 621 and a discharge end 622 and is used to move the workpiece along the conveying direction. The second conveyor 63 has a first input end 631 located on the same side as the feed end 621 and a discharge end 632 located on the same side as the feed end 621. The discharge end 622 is located on the same side as the first output end 632. The second conveyor 63 is used to move the carrier in the opposite direction along the conveying direction so that the first conveyor 62 and the second conveyor 63 cooperate with each other to circulate the carrier used to carry the tray and workpiece, so as to automatically provide and replenish the carrier in the conveying of each workpiece. The third conveyor 64 has a second input end 641 and a second output end 642. The third conveyor 64 is used to convey empty trays along the conveying direction so that the circulating conveyor 6 can divide the material for conveying to cope with different processes. In this embodiment, the support frame 61 is arranged along the conveying direction, which is parallel to the horizontal ground and perpendicular to the horizontal ground. The first conveyor 62, the second conveyor 63, and the third conveyor 64 are all arranged along the conveying direction, spaced apart from each other and parallel. The first conveyor 62, the second conveyor 63, and the third conveyor 64 must be aligned with each other at least in the vertical or horizontal direction. In this embodiment, the first conveyor 62 is located above the second conveyor 63 in the vertical direction, and the third conveyor 64 is located above the first conveyor 62 in the vertical direction, and the first conveyor 62, the second conveyor 63, and the third conveyor 64 overlap in the vertical direction. The first conveyor 62 and the second conveyor 63 have the same length. In this embodiment, the first conveyor 62, the second conveyor 63, and the third conveyor 64 all use existing linear conveyors, such as belt conveyors, roller conveyors, and plate chain conveyors; among them, the first conveyor 62 needs to be selected as an intermittent conveyor to facilitate the various processes of the workpiece. Both ends of the support frame 61 are open. The first conveyor 62 and the second conveyor 63 extend to the open ends of the support frame 61. Since the first conveyor 62, the second conveyor 63, and the third conveyor 64 are existing technologies, they will not be described in detail here. It should be noted that the circulating conveyor 6 can also use other devices with intermittent workpiece conveying capabilities. The circulating conveyor 6 can be configured as at least one AGV (Automated Guided Vehicle) logistics vehicle, which moves the workpiece for the mechanical transfer mechanism 10 to pick up and place the workpiece.

[0049] In this embodiment, the first conveyor 62 has a material pick-up position 623, a first detection position 624, and a second detection position 625 sequentially along the conveying direction. Both the first detection position 624 and the second detection position 625 correspond to the measuring mechanism 9. After the workpiece-carrying carrier moves sequentially to the material pick-up position 623, the first detection position 624, and the second detection position 625, the first conveyor 62 will stop operating for a period of time until the mechanical transfer mechanism 10 removes the workpiece, performs the corresponding operation, and returns the workpiece before resuming conveying. The material pick-up position 623, the first detection position 624, and the second detection position 625 are all controlled by sensors to detect the carrier and thus achieve opening and closing. The third conveyor 64 is positioned directly opposite the material receiving position 623. A protective inspection platform 65, located on the side of the circulating conveyor 6 and directly opposite the material receiving position 623, is positioned between the cleaning machine and the measuring mechanism 9. After the carrier moves to the material receiving position 623, the operator manually removes the workpiece and performs a manual inspection, visually inspecting the cleaned workpiece. Alternatively, equipment such as a robotic arm can remove the workpiece and capture and identify images using a camera. Damaged workpieces are marked or screened out, while undamaged workpieces are returned to the carrier to facilitate their flow to the first inspection position 624. The protective inspection platform 65 includes a protective net 651 adjacent to one side of the circulating conveyor 6. A material receiving window 652 is provided on the protective net 651 directly opposite the material receiving position 623. The protective net 651 forms a protective space 653 on the side away from the circulating conveyor 6 to isolate personnel from the machine. A work platform is provided within the protective space 653. After removing workpieces from the picking position 623, operators or equipment can place them on the work platform for inspection. Two secondary protective nets 654 extend from both sides of the picking window 652 towards the first conveyor 62. These secondary nets 654 are located on both sides of the picking position 623 along the X-axis, with their bottoms spaced apart from the first conveyor 62 to allow passage for the carrier and workpiece. This improves human-machine isolation during manual inspection and ensures operator safety. It should be noted that the inspection protective table 65 is provided as needed; it can be removed if increased automation is required.

[0050] In this embodiment, the loading mechanism 7 is located on the feeding end 621 of the first conveyor 62, and is also located on the first output end 632 of the second conveyor 63. The loading mechanism 7 is connected to both the feeding end 621 and the first output end 632. The workpieces on the loading mechanism 7 are transported by a transport vehicle, which is an AGV logistics vehicle used to dock with the loading mechanism 7. The loading mechanism 7 is electrically connected to the information control system. After the AGV logistics vehicle transfers the tray carrying the workpieces to the loading mechanism 7, the product ID code of the workpiece is scanned and confirmed by the scanning dock. After sensing that the workpiece is in place, the loading mechanism 7 is triggered to pick up the workpiece and transfer it to the waiting position, ensuring that the product corresponds 100% with the assembled auxiliary materials. In this embodiment, the loading mechanism 7 includes a first transfer machine 71 disposed on one side of the feed end 621 of the first conveyor 62 and a loading machine 72 disposed on one side of the first transfer machine 71. The loading machine 72 can be connected to the first transfer machine 71 or can be placed arbitrarily, but the position of the loading machine 72 must always be kept within the working range of the mechanical transfer mechanism 10. The first transfer machine 71 is used to transfer the empty carrier on the first output end 632 of the second conveyor 63 to the feed end 621 of the first conveyor 62. The loading machine 72 is used to support and move a single workpiece to the feed end 621 of the first conveyor 62. It should be noted that the loading mechanism 7 is not limited to the structure of this embodiment, and other structures can be used instead. For example, the loading mechanism 7 may include two robotic arms, one of which is used to transfer the workpiece on the transport vehicle to the feed end 621, and the other robotic arm is used to transfer the carrier on the second conveyor 63 to the feed end 621, so as to realize the circulation of feeding and carrier.

[0051] The first transfer machine 71 includes a first support 711 adjacent to the support frame 61, a first lifting assembly 712 disposed within the first support 711, and a fourth conveyor 713 connected to the first lifting assembly 712. The first support 711 supports the first lifting assembly 712, and the side of the first support 711 facing the circulating conveyor 6 is open. The first lifting assembly 712 includes a moving module disposed within the first support 711 and arranged in a direction parallel to the first conveyor 62 and the second conveyor 63. The moving module can be a linear module such as an electric slide rail, or linear conveying can be achieved by using pulleys. The fourth conveyor 713 is arranged along the conveying direction and fixedly connected to the sliding structure of the first lifting assembly 712. In this embodiment, the first lifting assembly 712, in conjunction with the arrangement of the first conveyor 62 and the second conveyor 63, drives the fourth conveyor 713 to move in the vertical direction. The fourth conveyor 713 is connected to the circulating conveyor 6. In use, the first lifting group 712 first moves the fourth conveyor 713 to the first output end 632 to receive the empty vehicle from the second conveyor 63. After the empty vehicle moves onto the fourth conveyor 713, the first lifting group 712 operates, driving the fourth conveyor 713 to the side of the feed end 621. The fourth conveyor 713 then starts and transfers the empty vehicle onto the feed end 621, completing the transfer of the empty vehicle. Electric sliding rails are existing technology and will not be described in detail here.

[0052] The loading machine 72 includes a first cabinet 721 disposed on the side of the first support 711, two fifth conveyors 722 disposed parallel to the top of the first cabinet 721, and a demolding assembly 723 connected to the first cabinet 721 for moving workpieces on the two fifth conveyors 722. For ease of understanding, the conveying direction is defined as the X-axis direction. The first cabinet 721 is disposed on the side of the first support 711 away from the circulating conveyor 6, so that the first cabinet 721, the first support 711, and the circulating conveyor 6 are distributed along the X-axis direction. The two fifth conveyors 722 are distributed along the Y-axis direction, with one fifth conveyor 722 directly opposite the first support 711 and the first conveyor 62 along the conveying direction and defined as a waiting position, and the other fifth conveyor 722 defined as a loading position. When the AGV logistics vehicle transfers workpieces, it aligns with the loading position to transfer the tray containing the workpieces to the loading position. The AGV logistics vehicle can also be equipped with two output positions consistent with the two fifth conveyors 722. For multi-layer materials, an empty material tray can be set at the output position of the AGV logistics vehicle directly opposite the waiting position to transfer the material to the waiting position. The fifth conveyor 722 also uses the existing conveyor, which will not be described in detail here. The demolding assembly 723 includes a second bracket 7231 mounted on the top surface of the first cabinet 721 and spanning above the two fifth conveyors 722, a first linear module 7232 connected to the second bracket 7231 along the Y-axis, a second linear module 7233 connected to the slider of the first linear module 7232 along the Z-axis, and a clamping part 7234 connected to the slider of the second linear module 7233. The clamping part 7234 is arranged along the X-axis or Y-axis, preferably along the X-axis, to avoid obstruction with the first cabinet 721. Both the first linear module 7232 and the second linear module 7233 can be selected from any type of electrically driven linear guide rail, or they can use cylinders 72342, with the slider connected to the piston rod end of the cylinder 72342 to achieve linear movement. The clamping part 7234 includes a connecting plate 72341 connected to the slider of the second linear module 7233 along the X-axis direction, two cylinders 72342 spaced apart on the connecting plate 72341 along the X-axis direction, and clamping blocks 72343 respectively connected to the piston rods of the two cylinders 72342. The piston rods of the two cylinders 72342 are arranged along the X-axis direction and extend away from each other. The bottom of the clamping block 72343 extends downward so that the two cylinders 72342 operate synchronously to drive the two clamping blocks 72343 to move towards or away from each other, thereby clamping or releasing the workpiece or tray. It should be noted that the clamping function can still be achieved even if the two cylinders 72342 are not synchronized.In use, after the material tray is transferred to the loading position, the ID code on the workpiece is scanned and confirmed. The first linear module 7232 then moves the second linear module 7233 to the loading position. The second linear module 7233 then moves, causing the clamping part 7234 to move towards the material tray. The cylinder 72342 is activated to clamp the material tray, and the second linear module 7233 resets, causing the material tray to move upwards. The first linear module 7232 then resets the material tray, allowing the clamping part 7234 to move to the waiting position. The second linear module 7233 continues to move closer to the waiting position, and the cylinder 72342 then moves the material tray to the waiting position. A mechanical transfer mechanism 10 then transfers the tray to the feeding end 621. This process is suitable for both single-layer and multi-layer materials. For single-layer materials, the material tray is moved directly; for multi-layer materials, the topmost workpiece is moved. A material tray must be prepared in advance at the corresponding waiting position. It should be noted that the movement of the second linear module 7233 is detected and confirmed by a height sensing sensor installed on the first cabinet 721; the material tray at the waiting position can also be transferred to the feeding end 621 by a separate moving module.

[0053] In this embodiment, the unloading mechanism 8 includes a second transfer machine 81 disposed on the discharge end 622 of the first conveyor 62 and an unloading machine 82 disposed on one side of the second transfer machine 81. The second transfer machine 81 is used to transfer the empty carrier on the discharge end 622 of the first conveyor 62 to the first input end 631 of the second conveyor 63. The unloading machine 82 cooperates with the mechanical transfer mechanism 10 to transport undamaged workpieces and damaged workpieces respectively.

[0054] In this embodiment, the second transfer machine 81 includes a third support 811 adjacent to the discharge end 622 of the support frame 61, a second lifting assembly 812 disposed within the third support 811, and a sixth conveyor 813 connected to the second lifting assembly 812. The third support 811 supports the second lifting assembly 812, and one side of the third support 811 facing the circulating conveyor 6 is open. The structure of the second lifting assembly 812 is the same as that of the first lifting assembly 712, and it is used to drive the sixth conveyor 813 to move linearly along the Z-axis direction, which will not be described in detail here. The sixth conveyor 813 is arranged along the conveying direction and fixedly connected to the sliding structure of the second lifting assembly 812. In this embodiment, the second lifting assembly 812, in conjunction with the arrangement of the first conveyor 62 and the second conveyor 63, drives the sixth conveyor 813 to move vertically. The sixth conveyor 813 is connected to the circulating conveyor 6. In use, the second lifting group 812 first moves the sixth conveyor 813 to the discharge end 622 of the first conveyor 62 to receive the empty carrier after the material tray is removed from the first conveyor 62. After the empty carrier moves to the sixth conveyor 813, the second lifting group 812 drives the sixth conveyor 813 to the side of the first input end 631. The sixth conveyor 813 starts and transfers the empty carrier to the first input end 631. The second conveyor 63 drives the empty carrier to the first output end 632. Then, the first lifting group 712 moves the fourth conveyor 713 to the first output end 632 until the empty carrier moves to the fourth conveyor 713 and is transferred to the feed end 621 of the first conveyor 62, thus completing the cyclic conveying and transfer of the empty carrier.

[0055] In this embodiment, the unloading machine 82 includes a second cabinet 821 and two seventh conveyors 822 disposed on top of the second cabinet 821 along the Y-axis. The conveying direction of the two seventh conveyors 822 is also arranged along the X-axis, but they can also be arranged in other directions. One seventh conveyor 822 is designated as the OK zone, and the other seventh conveyor 822 is designated as the NG zone. The OK zone is used to convey non-destructive workpieces, and the NG zone is used to convey destructive workpieces. The structures of the two seventh conveyors 822 and other conveyors can use the same conveyors, which will not be described in detail here.

[0056] The measuring mechanism 9 includes a comparison measuring machine 91 and a UMP measuring instrument 92 located on the side of the circulating conveyor 6, which detect various parameters of the workpiece to ensure workpiece yield. The measuring mechanism 9 can also be configured as other detection devices required to detect workpiece performance or quality, and the comparison measuring machine 91 and UMP measuring instrument 92 are direct applications of existing technology, which will not be described in detail here. The mechanical transfer mechanism 10 consists of four six-axis robotic arms, corresponding to the cleaning machine, the comparison measuring machine 91, the UMP measuring instrument 92, and the unloading machine 82, respectively. The first six-axis robot 101 picks up the workpiece from the feed end 621 and places it into the cleaning machine for fixation. At this time, the first conveyor 62 stops running. Subsequently, the first six-axis robot 101 transfers the empty material tray on the carrier to the second input end 641 of the third conveyor 64. The third conveyor 64 runs and transfers the empty material tray to the second output end 642 before stopping. After the cleaning machine completes the cleaning and drying of the workpiece, the first six-axis robot 101 removes the product from the cleaning machine and places it onto the empty carrier on the first conveyor 62. The first conveyor 62 runs and moves the workpiece to the picking position 623 for inspection until the workpiece moves. Upon reaching the first picking position, the workpiece moves to the side of the UMP measuring machine 92. The second six-axis robot 102 picks up the workpiece and places it inside the UMP measuring machine 92, photographs its product ID code, and uploads it to the Trace system (a tool for monitoring, analyzing, and optimizing service calls in complex distributed systems). During workpiece inspection, the second six-axis robot 102 transfers the empty tray on the second output end 642 to the empty carrier at this point. After the UMP measuring machine 92 completes the measurement, the second six-axis robot 102 removes the workpiece and places it back onto the tray of the circulating conveyor 6, while the first conveyor 62 continues to transport the workpiece. When the workpiece moves to the side of the comparison measuring machine 91, the third six-axis robot 103 picks up the workpiece, scans its ID code, and moves it into the comparison measuring machine 91. The comparison measuring machine 91 continues this process until the workpiece's quality is recorded via its ID code. The third six-axis robot 103 then removes the workpiece and places it back onto the circulating tray, while the first conveyor 62 transports the workpiece again. When the workpiece moves to the discharge end 622, the fourth six-axis robot 104 removes the workpiece, scans it again, and moves it to the OK area (for placing non-damaging workpieces) or NG area (for placing damaging workpieces) of the unloading machine 82 to complete the cleaning and inspection of the workpiece. The mechanical transfer mechanism 10 is mounted on the support frame 61 to pick up and place workpieces and trays relative to the first conveyor 62. To facilitate the transfer of workpieces from the fourth six-axis robot 104 to the unloading machine 82, the fourth six-axis robot 104 can be positioned between the second transfer machine 81 and the unloading machine 82; therefore, the fourth six-axis robot 104 does not need to be mounted on the support frame 61. It should be noted that the six-axis robot is a direct application of existing technology, and its structure will not be described in detail.

[0057] like Figures 6 to 11 As shown, in this embodiment, the cleaning machine includes a frame 1 with an internal cleaning space 16, a cleaning and drying device 2 disposed within the cleaning space 16, an alarm indicator light 3 disposed on the frame 1, a collection box 4 disposed on the frame 1, and a circulating water supply structure 5 movably disposed on the frame 1. The cleaning space 16 is connected to the outside of the frame 1 so that the first six-axis robot can extend into the cleaning space for easy picking and placing of workpieces. After the workpiece is moved into the cleaning space by the first six-axis robot 101, the cleaning and drying device 2 positions the workpiece and then rinses it by spraying water and dries it after rinsing. The alarm indicator light 3 will sound an alarm when the equipment malfunctions to indicate abnormal equipment information. The collection box 4 is used to collect wastewater during and after rinsing of the workpiece in the cleaning space. The circulating water supply structure 5 can provide water to the cleaning and drying device 2. At the same time, the circulating water supply structure 5, in conjunction with the collection box 4 and the cleaning space 16, can collect and filter wastewater, so that the filtered wastewater is circulated to the cleaning and drying device 2, saving water resources.

[0058] In this embodiment, the frame 1 has a bottom space and an upper space located above the bottom space and independent of the bottom space. A cleaning space 16 is separated in the upper space of the frame 1 by a first partition 11. The side of the cleaning space 16 away from the first partition 11 is open, forming an open side. A first baffle 12, which is sealed to the frame 1, is provided on the open side. The first baffle 12 blocks the lower half of the open side to protect the cleaning and drying device 2 within the cleaning space 16 and also serves to prevent water from entering. The open side above the first baffle 12 is used for the passage of a six-axis robot arm to facilitate the picking and placing of workpieces. To facilitate the installation and maintenance of the cleaning and drying device 2 and other structures, several hinged doors 17 are connected on each side wall of the frame 1 for opening and closing. To facilitate the movement of the entire cleaning machine, rollers are provided at the four corners of the bottom of the frame 1.

[0059] In this embodiment, the cleaning and drying device 2 includes a fixing structure 21 for positioning the workpiece within the cleaning space 16, a cleaning structure 22 for spraying water onto the workpiece on the fixing structure 21 within the cleaning space 16, and a drying structure 23 for drying the workpiece on the fixing structure 21 within the cleaning space 16. When the six-axis robot moves the workpiece to the fixing structure 21, the fixing structure 21 fixes and moves the workpiece, and releases the workpiece after cleaning to allow the six-axis robot to remove it. The cleaning structure 22 uses the fixing structure 21 to move the workpiece and rinse it, removing dust and debris from the workpiece surface to ensure cleanliness. Furthermore, cleaning the workpiece using water jets can quickly remove stains, is low-cost, and does not pollute the environment, requiring no heating or cleaning agents. The air-drying structure 23 blows air onto the workpiece moving on the fixed structure 21 until the water stains on the workpiece surface are dried, thus completing the workpiece cleaning. The drying operation is still performed on the fixed structure 21, eliminating the need to transfer the workpiece, which greatly improves efficiency, reduces the use of transfer equipment, and lowers costs. In another embodiment, the cleaning and drying device 2 may include a fixed structure 21, a cleaning structure 22, and a hot drying structure. The hot drying structure includes a dryer installed in the cleaning space 16, with a corresponding waterproof structure on the dryer to achieve both cleaning and hot air drying of the workpiece.

[0060] In this embodiment, the fixing structure 21 includes a positioning part 211 with an installation space and a driving part 212 mounted on the frame 1. At least two positioning parts 211 are provided, adjacent to each other and not obstructing or blocking each other relative to the cleaning structure 22 and the drying structure 23. The installation space is adjustable; the size of the installation space for each positioning part 211 can be adjusted according to the size of the workpiece. A driving device controls the relative movement of the two positioning parts 211 to achieve the loosening and clamping of the workpiece. The driving part 212 is used to move each positioning part 211 and the workpiece on the positioning part 211 relative to the cleaning structure 22 and the drying structure 23, facilitating the cleaning and drying of the entire workpiece. Each fixing structure 21 can be two pneumatic grippers installed in the cleaning space 16, which fix the workpiece from both sides to achieve workpiece fixation.

[0061] In this embodiment, the positioning unit 211 includes a first driving member 2111 and two positioning frames symmetrically mounted on the first driving member 2111. The first driving member 2111 drives the two positioning frames to move towards or away from each other. When the two positioning frames move towards each other, the length of the installation space is reduced, which can be used to clamp and fix the workpiece. When the two positioning frames move away from each other, the length of the installation space is increased, which can be used to open the installation space enclosed between the positioning frames. When a workpiece is installed in the installation space, the workpiece is released so that the six-axis robot can remove the workpiece. The first driving member 2111 can be configured as a linear module, a double slide cylinder, or two slide cylinders, with the two slides moving towards or away from each other in a linear motion. It should be noted that the first driving member 2111 needs to be waterproofed to avoid damage to the equipment. It should be noted that the first driving member 2111 is limited to the aforementioned driving device.

[0062] In this embodiment, two positioning frames are fixedly connected to two slides. The two positioning frames are driven by a slide cylinder to move towards each other or away from each other, adjusting the length between them and thus the length of the installation space. Preferably, each positioning frame is provided with at least two sets of limiting points that position the workpiece edge in a line-contact manner. This reduces contact with the workpiece surface while supporting and fixing the workpiece, and minimizes obstruction of the workpiece surface during cleaning by the cleaning structure 22, ensuring effective cleaning. Furthermore, the line contact method reduces friction on the workpiece surface during the positioning frame's clamping or releasing process, thus reducing or preventing damage such as impacts, scratches, or dents. At least one set of limiting points maintains elastic contact with the workpiece, improving the tightness while also reducing the possibility of damage caused by friction. Specifically, both positioning frames include a base plate 2112 made of rigid material connected to the slide table along the sliding direction, a vertical plate 2113 connected to the base plate 2112 and arranged in a direction perpendicular to the sliding direction, and an elastic rubber block 2114 detachably connected to the inner side of the vertical plate 2113 along the sliding direction. The base plate 2112 connects to the slide table, the vertical plate 2113 supports the elastic rubber block 2114, and the elastic rubber block 2114 is used to contact the workpiece. After positioning the workpiece, the elastic rubber block 2114 reduces interference with the workpiece, reduces hard contact, and correspondingly reduces wear. The elastic rubber block 2114 includes a first rubber block 21141 arranged in a strip along the length of the block and at least two sets of second rubber blocks 21142 fixedly connected to the first rubber block 21141 on the inward side along the sliding direction. Each set of second rubber blocks 21142 consists of two blocks spaced apart in a direction perpendicular to both the sliding direction and the length of the block. On the opposite side of the two second rubber blocks 21142 in each set, an arc-shaped guide surface 21143 with a central protrusion is formed. The gap between the sides of the two opposing guide surfaces 21143 is greater than the thickness of the workpiece, while the gap between the central protrusions of the two opposing guide surfaces 21143 is slightly less than the thickness of the workpiece. The workpiece is sequentially inserted between the two guide surfaces 21143 in each set along the length of the block, so as to achieve the positioning and limiting of the workpiece by the squeezing and friction of the guide surfaces 21143. An arc-shaped groove with a superior arc cross-section is formed on the facing side of the two first adhesive blocks 21141. The arc-shaped groove passes through the upright plate 2113, and a pin made of rigid material passes through the arc-shaped groove on the upright and the first adhesive block 21141 to realize the connection between the first adhesive block 21141 and the upright. In this embodiment, the second adhesive block 21142 is set in two sets. One set is fixedly connected to the side of the upright away from the base plate 2112, and the other set is fixedly connected to the end of the upright near the base plate 2112. When installing the workpiece, the set of second adhesive blocks 21142 located near the base plate 2112 is used to support and hold one side of the workpiece (e.g., Figure 5The bottom side shown is one of the two sets of second rubber blocks 21142, which are used to clamp the other adjacent side of the workpiece to position the workpiece from multiple sides and prevent it from sliding. To ensure the stability of the workpiece, at least one set of limiting rods 2115 are fixedly provided on the base plate 2112 along the length of the upright plate 2113. Each set of limiting rods 2115 has two rods, which are distributed at intervals in the same direction as the distribution of each set of second rubber blocks 21142. When the side of the workpiece is supported on the second rubber blocks 21142 near the base plate 2112, the side of the workpiece is also passed between the two limiting rods 2115 of each set. The limiting rods 2115 are made of rigid material to prevent the workpiece from flipping on the side supported by the second rubber blocks 21142 and causing the workpiece to shift. To avoid the limiting rods 2115 scratching the workpiece, each positioning frame is provided with a set of limiting rods 2115, and the limiting rods 2115 have a cylindrical structure and make line contact with the workpiece. It should be noted that the guide surface 21143 is arc-shaped, therefore, it makes essentially line contact with the workpiece. In this embodiment, the portions of each set of limiting rods 2115 and each set of guide surfaces 21143 that contact the workpiece are defined as limiting points. During workpiece installation, only the edge portion of the workpiece contacts each limiting point to minimize obstruction of the workpiece, while the rest of the workpiece is fully exposed in the cleaning space. The cleaning structure 22 and the drying structure 23 are used for rinsing and drying, respectively. It should be noted that the distribution direction of each positioning part 211 can be arranged along the distribution direction of the two positioning frames.

[0063] In this embodiment, the drive unit 212 includes multiple second drive members 2121 connected to the frame 1, a motion unit 2122 disposed on the frame 1 and extending into the cleaning space 16, a connecting plate 2123 located in the cleaning space 16 and connected to the motion unit 2122, and a limiting buffer part 2124 disposed on the connecting plate 2123 for always abutting against the positioning frame 211. The second drive members 2121 provide power to the motion unit 2122, causing the motion unit 2122 to drive the connecting plate 2122 to move. The positioning part 211 is mounted on the connecting plate 2123. When the motion unit 2122 drives the connecting plate 2123 to move, the connecting plate 2123 drives the positioning part 211 to move, thereby realizing the movement of the workpiece. This allows the cleaning structure 22 and the drying structure 23 to thoroughly rinse and dry the workpiece while remaining stationary. The limiting buffer part 2124 is used to slow down the movement speed of the positioning frame to prevent the positioning frame from scratching the workpiece due to excessive speed during the release of the workpiece. It should be noted that the structures of the first lifting group 712 and the second lifting group 812 can both adopt the same structure as the drive unit 212 to achieve the lifting function.

[0064] In this embodiment, the second driving component 2121 is disposed within the bottom space and includes a motor 21211 fixedly mounted on the inner wall of the bottom space and a pulley assembly 21212 connected to the output shaft of the motor 21211 and arranged along a cleaning direction. The motor 21211 is a servo motor, and its output shaft can rotate clockwise and counterclockwise. The operation of the motor 21211 drives the pulley assembly 21212 via belt transmission. The moving part 2122 is connected to the pulley assembly 21212, causing the moving part 2122 to move with the pulley assembly 21212, thereby driving the connecting plate 2123 to move back and forth along the cleaning direction. The pulley assembly 21212 includes a vertical plate arranged along the cleaning direction, two parallel pulleys rotatably connected to the vertical plate, and a belt wound around the two pulleys. One pulley shaft is connected to the output shaft of the motor 21211, the two pulleys are distributed along the cleaning direction, and a first connecting block is fixedly connected to the belt. The moving part 2122 is connected to the first connecting block. When in use, the motor 21211 runs clockwise, driving the pulley connected to it to rotate, which in turn drives the belt to rotate around the two pulleys. The first connecting block on the belt moves along the cleaning direction from near one of the pulleys to near the other pulley. When the motor 21211 runs counterclockwise, the pulley and belt rotate in opposite directions, and the first connecting block moves in the opposite direction along the cleaning direction.

[0065] In this embodiment, the moving part 2122 includes at least two slide rails 21221 spaced apart and parallel to each other along the cleaning direction, a plurality of second connecting blocks 21222 respectively disposed on each slide rail 21221, a connecting frame plate 21223 located inside each slide rail 21221 and fixedly connected to each second connecting block 21222, a plurality of slide rods 21224 fixedly connected to the connecting frame plate 21223, and a linear guide rail 21225 fixedly installed on the inner wall of the cleaning space 16 and facing each slide rod 21224 along the cleaning direction. Each slide rod 21224 is movably inserted into the cleaning space 16 and slides through each linear guide rail 21225 along the cleaning direction so that each slide rod 21224 can slide in the cleaning space 16 along the cleaning direction. The connecting plate 2123 is fixedly connected to one end of each slide rod 21224 extending into the cleaning space 16. When the workpiece is mounted on the positioning part 211 and needs to be cleaned, the motor 21211 of the second driving member 2121 rotates counterclockwise and clockwise alternately. Through the cooperation between the pulley and the belt, it drives the connecting frame plate 21223 connected to the second connecting block 21222 to move along the cleaning direction. This drives the slide rod 21224 to pass through the cleaning space 16 along the cleaning direction, thereby moving the connecting plate 2123. The positioning part 211 then moves along the cleaning direction, causing the workpiece to move back and forth along the cleaning direction. During the movement of the workpiece, the cleaning structure 22 and the drying structure 23 sequentially rinse and dry the workpiece. In this embodiment, most of the structure of the second driving member 2121 and the moving part 2122 is set in the bottom space, which can avoid the second driving member 2121 and the moving part 2122 from obstructing the workpiece and affecting the rinsing effect. Moreover, if all parts of the moving part 2122 and the second driving member 2121 are set in the cleaning space 16, it will increase the amount of water splashing and affect the rinsing effect.

[0066] In this embodiment, two limiting buffer parts 2124 are provided and are respectively located on both sides of the two positioning frames along the length of the installation space. Both limiting buffer parts 2124 are fixedly connected to the connecting plate 2123. When the two positioning frames clamp the workpiece, the two limiting buffer parts are in their normal state and gently abut against the upright plate 2113 of the positioning frame. When it is necessary to release the workpiece, the two upright plates 2113 gradually move in opposite directions under the drive of the first driving member 2111. During this process, the limiting buffer parts 2124 press against the upright plates 2113 to reduce the moving speed of the upright plates 2113 and reduce the possibility of scratches on the upright plates 2113 during the release process. The limiting buffer parts 2124 are existing buffers and are prior art, so they will not be described in detail here.

[0067] In this embodiment, the cleaning structures 22 are configured as two symmetrically arranged on both sides of the fixed structure 21 along a direction perpendicular to the cleaning direction, so that the fixed structure 21 is located between the two cleaning structures 22. After the drive unit 212 is running, the positioning unit 211 moves between the cleaning structures 22 along the cleaning direction to rinse the workpiece on the positioning unit 211 back and forth. Each of the two cleaning structures 22 includes a bracket 221 connected to the inner wall of the cleaning space 16 and at least one water jet 223 mounted on the side of the bracket 221 facing the fixed structure 21. The opposing sides of the two brackets 221 each have a mounting plane 222, and the two water jets 223 are respectively mounted on the mounting plane 222. The water jet 223 is connected to the circulating water supply structure 5 through a pipeline. The length direction of the water jet 223 is arranged parallel to the length direction of the installation space, and the length of the water jet 223 is greater than the length of the installation space. The water spray range of the water jet 223 covers the workpiece along the length range of the workpiece, and the water spray range is within the moving range of the fixed structure 21 on the drive connecting plate 2123 driven by the second drive component 2121. Thus, when the water jet 223 sprays water, the workpiece moves along the cleaning direction and passes through the water jet 223 in sequence, achieving full-coverage rinsing.

[0068] In this embodiment, two air-drying structures 23 are configured and mounted on the mounting planes 222 of the two supports 221. Each air-drying structure 23 includes at least one air knife 231, which is arranged parallel to the water jet 223 along the cleaning direction. An air pump and an exhaust fan connected to the air pump are mounted on the frame 1. The exhaust fan is used for heat dissipation in the bottom space, and the air pump is used to connect to the air knife 231 through a second pipe. Each air-drying structure 23 has two air knives 231 arranged parallel to each other along the cleaning direction. The water jet 223 is located outside the two air knives 231, and the two air knives 231 are arranged adjacent to each other. The air-drying range of the air knife 231 is set to be consistent with the spray range of the water jet 223 so as to cover the movement range of the workpiece, thereby drying water stains on the surface of the workpiece. In operation, the water jet 223 operates before the air jet 231 to rinse the workpiece. When the workpiece is stationary, the two air jets 231 are positioned directly at one-third and two-thirds of the workpiece, respectively, allowing air to be blown onto the workpiece surface without movement. This increases the contact time between the air and the workpiece, accelerating the drying process by directly blowing air onto the workpiece and driving airflow within the cleaning space 16. After a certain time, the workpiece is dried. Even when the workpiece is moving, the contact area between the air jet 231 and the workpiece is increased, achieving the same drying effect.

[0069] In this embodiment, the bottom space is located at the bottom of the upper space, and the collection box 4 is fixedly installed at the top of the bottom space. A water collection hole 13 is provided on the bottom wall of the cleaning space 16 at a position directly opposite the positioning part 211 along the cleaning direction. The collection box 4 is located directly below the water collection hole 13, and each side of the collection box 4 is connected to the inner wall of the bottom space surrounding the water collection hole 13. Preferably, the brackets 221 are disposed on both sides of the water collection hole 13, and the mounting planes 222 extend along the cleaning direction to the two opposite sides of the water collection hole 13, so that the two mounting planes 222 surround the positioning part 211 inside it. The water jet 223 is disposed on the side of the mounting plane 222 away from the water collection hole 13, and the two mounting planes 222 can block most of the splashing water so that most of the water, after rinsing, flows with the mounting planes 222 towards the water collection hole 13 due to gravity and the water blocked by the mounting planes 222 and finally flows into the collection box 4, thereby reducing water splashing everywhere and collecting wastewater in the cleaning space. Since the water jet 223 is installed on the side (top) of the mounting plane 222 away from the water collection hole 13, when the workpiece moves with the positioning part 211 to be rinsed by the water jet 223, water will splash onto the cleaning space 16 outside the two mounting planes 222 when it sprays towards the workpiece surface. Since there are many wires and electrical components in the frame 1 to control the pumps and drive components, in order to prevent the blocked water from splashing onto the electrical components, second baffles 14 are respectively provided on the two sides opposite to the bracket 221 in the cleaning space 16. The first baffle 12 is located on one side of the mounting space of the two brackets 221 along the length direction. One side of the two second baffles 14 is connected to the first partition 11, and the other opposite side of the two second baffles 14 is connected to a third baffle 15 set on the open side. The third baffle 15 covers two-thirds of the open side, which can block some of the splashed water while allowing the first six-axis robot to pass through. Each second baffle 14 has a gap between the side away from the water collection hole 13 and the inner wall of the cleaning space 16 to achieve a double water-blocking effect.

[0070] In this embodiment, the circulating water supply structure 5 includes a recycling filter section 51 that connects the cleaning space 16 and the collection box 4, and a water supply section 52 that connects the recycling filter section 51 and the cleaning structure 22. The water supply section 52 provides water and water pressure to the cleaning structure 22 for rinsing the workpiece. The recycling filter section 51 collects and filters the wastewater in the cleaning space 16 that does not flow to the collection box 4 and the water in the collection box 4. The filtered water flows to the water supply section 52 for water supply to the cleaning structure 22, thereby achieving circulating water supply, reducing water use and waste, and lowering costs. The recycling filter section 51 includes several drain pipes 511 with input ends connected to the bottom wall of the cleaning space 16 and a filter box 512. Drain pipes 511 are also connected to the bottom wall of the cleaning space 16 located outside each of the second baffles 14 and the third baffles 15. The wastewater in this part is difficult to flow into the collection box 4 due to the restriction of the second baffles 14 and the third baffles 15, so the drain pipes 511 are used to discharge the wastewater. The output ends of each drain pipe 511 are connected to the filter box 512 and communicate with the interior of the filter box 512. Water in the collection box 4 is also connected to the filter box 512 through pipes. Several filter cotton and / or filter media are installed in the filter box 512 to filter the wastewater. The water supply unit 52 includes a water tank 521 with movable rollers at the bottom and a water pump 522 installed on the water tank 521. The input pipe of the water pump 522 extends into the water tank 521, and the output pipe of the water pump 522 is connected to the water jet 223 through pipes. The filter box 512 is fixedly installed at the bottom of the water tank 521, and filter holes 513 are opened at the bottom of the filter box 512 and the top of the water tank 521 to allow the filtered water in the filter box 512 to enter the interior of the water tank 521, so that the filtered water flows into the water tank 521. On the side wall of the frame 1, there is a moving port that allows the entire circulating water supply structure 5 to move freely into or out of the bottom space. The moving port is blocked by the box door 17 to prevent the circulating water supply structure 5 from detaching from the frame 1.

[0071] It should be noted that the water pump 522, air pump, first drive unit 2111, second drive unit 2121, and alarm indicator 3 in this invention are all electrically connected to a controller for control. A switch is installed on the frame 1 to enable fully automatic operation of each component. The cleaning direction in this invention is the vertical Z-axis direction, the separation direction is the X-axis direction, and the length direction of the installation space is the Y-axis direction, forming a three-axis distribution. The cleaning direction can also be set along the transverse direction; in this case, the installation positions of the second drive unit 2121 and the moving part 2122 would need to be modified for easier operation.

[0072] The cleaning machine of the present invention operates as follows: In the initial state, the installation space between the two positioning frames is open, allowing the workpiece to pass freely through it. The slide rod 21224 drives the connecting plate 2123 to be positioned below the spray range of the water jet 223. Then, the first six-axis robot moves the workpiece from the open side to the position directly above the positioning part 211 and moves it into the installation space along the cleaning direction. Once the bottom side of the workpiece moves between the sets of limiting rods 2115, the workpiece is in place. The first driving member 2111 operates, driving the two positioning frames to move towards each other to gradually squeeze the side of the workpiece until the side of the workpiece is squeezed between the sets of guide surfaces 21143, completing the installation and positioning of the workpiece. Afterward, the six-axis robot withdraws, and the second driving member 2121 operates, driving the connecting plate 2123 to move via the slide rod 21224. The workpiece moves along the cleaning direction. At the same time, the water pump 522 runs to deliver water to the water jet 223. During this process, the slide bar 21224 drives the workpiece to be rinsed from one side to the other side by the water jet 223. Then, the first drive member 2111 drives the slide bar 21224 to slide in the opposite direction to repeatedly clean the workpiece. After cleaning, the water pump 522 stops supplying water, and the air pump runs to blow air onto the workpiece to dry the water stains on the surface of the workpiece. During this process, the first drive member 2111 can continue to run or remain stationary until the surface of the workpiece is basically dried. Then, the air pump stops running, and the corresponding six-axis robot extends into the cleaning space 16 and grabs the workpiece. The first drive member 2111 then runs to release the workpiece, and the first six-axis robot 101 takes out the workpiece and places it on the conveying mechanism, thus completing the workpiece picking, placing and cleaning.

[0073] The method of using the self-cleaning detection system of the present invention includes the following steps:

[0074] Material preparation: First, the logistics trolley transfers the tray loaded with workpieces to the feeder 72. Then, the feeder 72 transfers a single workpiece to an empty tray and transfers the tray with the single workpiece to the carrier on the feed end 621 of the first conveyor 62.

[0075] Material cleaning: The mechanical transfer mechanism 10 moves the workpiece on the material tray at the feed end 621 to the cleaning machine, where the cleaning machine washes and dries the workpiece. During this process, the mechanical transfer mechanism 10 transfers the empty material tray to the second input end 641, and the third conveyor 64 transports the empty material tray to the second output end 642 and then stops.

[0076] One-time inspection: After the workpiece is cleaned, the mechanical transfer mechanism 10 transfers the workpiece in the cleaning machine to the carrier. The first conveyor 62 drives the carrier to the material pick-up position 623. The inspection personnel or equipment inspect the workpiece on the material pick-up position 623 from the inspection protection table 65. For undamaged workpieces, they are put back on the carrier and the conveying continues.

[0077] Secondary inspection: The mechanical transfer mechanism 10 transfers the workpiece after the first inspection to the measuring mechanism 9. During the workpiece inspection process, the mechanical transfer mechanism 10 transfers the empty material tray on the second output end 642 to the carrier. After the workpiece inspection is completed, the mechanical transfer mechanism 10 takes out the workpiece in the measuring mechanism 9 and places it on the material tray.

[0078] Material output: The first conveyor 62 moves the inspected carrier to the discharge end 622. The mechanical transfer mechanism 10 transfers the tray with the workpiece on the carrier to the corresponding position of the unloading machine 82 according to the inspection results and outputs it. During this process, the empty carrier is transferred by the first conveyor 62 to the second transfer machine 81. The second transfer machine 81 transfers the empty carrier to the first input end 631, and the second conveyor 63 transfers the empty carrier in the opposite direction along the conveying direction to the first transfer machine 71, thus performing carrier circulation.

[0079] It should be noted that in each step, the positioning of the workpiece, the tray, and the carrier is achieved by setting sensors at positions such as the feeding end 621, the discharging end 622, the first input end 631, the first output end 632, the second input end 641, the second output end 642, the picking position 623, the first detection position 624, and the second detection position 625. Finally, the controller controls the device to achieve automated operation.

Claims

1. A self-cleaning detection system, characterized in that: The system includes a circulating conveyor for transporting workpieces along a conveying direction, a feeding mechanism located at an inlet end of the circulating conveyor, and a discharging mechanism located at an outlet end of the circulating conveyor. Along the conveying direction, a cleaning machine for cleaning workpieces at the inlet end and a measuring mechanism for testing workpiece performance are sequentially arranged on the side of the circulating conveyor. The cleaning machine includes a frame forming a cleaning space and a cleaning and drying device located within the cleaning space for positioning the workpiece. The cleaning and drying device is used for positioning, rinsing, and drying the workpiece, and a fixed structure ensures that the workpiece remains stationary during the cleaning and drying process. The circulating conveyor also includes a mechanical transfer mechanism that sequentially transfers the workpiece from the circulating conveyor to the cleaning machine and the measuring mechanism, and after cleaning or testing, transfers the workpiece back to the circulating conveyor for continued transport. The circulating conveyor includes a support frame, a first conveyor mounted on the support frame and arranged along the conveying direction, and a second conveyor mounted on the support frame and arranged parallel to the first conveyor. The first conveyor has an inlet end and an outlet end and is used to move the carrier along the conveying direction. The second conveyor has a first input end on the same side as the inlet end and a first output end on the same side as the outlet end and is used to move the carrier in the opposite direction along the conveying direction. The mechanical transfer mechanism is arranged on the support frame to pick up and place workpieces and trays relative to the first conveyor. The feeding mechanism includes a first transfer machine disposed on the feed end of the first conveyor, the first transfer machine being used to transfer an empty carrier on the first output end of the second conveyor to the feed end of the first conveyor; The unloading mechanism includes a second transfer machine disposed on the discharge end of the first conveyor, the second transfer machine being used to transfer the empty carrier on the discharge end of the first conveyor to the first input end of the second conveyor; The circulating conveyor also includes a third conveyor mounted on the frame and spaced parallel to the first and second conveyors. The third conveyor has a second input end and a second output end and is used to convey empty material trays along the conveying direction. There is a material picking position at the position of the first conveyor directly opposite the third conveyor. A detection and protection platform is provided on the side of the material picking position. The detection and protection platform is located between the cleaning machine and the measuring mechanism. The feeding mechanism also includes a feeding machine disposed on one side of the first transfer machine, the feeding machine being used to support and move a single workpiece to the feeding end of the first conveyor; The unloading mechanism also includes an unloading machine located on one side of the second transfer machine, which is used to transport undamaged workpieces and damaged workpieces respectively.

2. The self-cleaning detection system as described in claim 1, characterized in that: The cleaning and drying device includes a fixing structure for positioning the workpiece, a cleaning structure for spraying water onto the surface of the workpiece, and a drying structure for drying the workpiece.

3. The self-cleaning detection system as described in claim 2, characterized in that: The fixing structure includes at least two positioning parts. The size of the installation space of the positioning parts can be adjusted according to the size of the workpiece, and the relative movement of the two positioning parts is controlled by a driving device to realize the loosening and clamping of the workpiece. The positioning part includes a pair of symmetrically arranged positioning frames, and multiple limiting points are provided between the positioning frames. The limiting points contact the edge of the workpiece to achieve line contact positioning. At least one of the limiting points contacts the workpiece in an elastic contact to reduce the friction of the workpiece during the positioning process.

4. The self-cleaning detection system as described in claim 3, characterized in that: The fixed structure also includes a drive unit mounted on the frame. The drive unit includes a plurality of second drive members connected to the frame, a motion unit disposed on the frame and extending into the cleaning space, and a connecting plate located in the cleaning space and connected to the motion unit. Each second drive member is used to drive the motion unit to move the connecting plate back and forth along a cleaning direction. The positioning part is mounted on the connecting plate, and a limiting buffer part abutting against the positioning part is provided on the connecting plate.

5. The self-cleaning detection system as described in claim 4, characterized in that: The cleaning structure is configured as two and symmetrically arranged on both sides of the fixed structure along a direction perpendicular to the cleaning direction; both cleaning structures include a bracket connected to the inner wall of the cleaning space, and at least one water jet installed on the side of the bracket facing the fixed structure. The water jet spray range covers the workpiece along the length of the workpiece, and the water spray range is within the movement range of the fixed structure on the second driving member driving the connecting plate.

6. The self-cleaning detection system as described in claim 5, characterized in that: The air-drying structure is configured as two and is respectively installed on the side of the two supports facing the fixed structure. The air-drying structure includes at least one air knife, which is arranged parallel to the water knife along the cleaning direction.

7. The self-cleaning detection system as described in claim 1, characterized in that: The cleaning machine also includes a collection box mounted on the frame for collecting wastewater in the cleaning space, and a circulating water supply structure movably mounted on the frame. The circulating water supply structure includes a recovery filtration section that connects the cleaning space and the collection box, and a water supply section that connects the recovery filtration section and the cleaning structure. The recovery filtration section is used to recover filtered wastewater and send the filtered wastewater to the water supply section. The water supply section is used to supply water to the cleaning structure. The water supply section is equipped with movable rollers to facilitate the movement and maintenance of the structure.

8. A method of using the self-cleaning detection system as described in claim 1, characterized in that, Includes the following steps: Material preparation: First, the logistics trolley transfers the pallet loaded with workpieces to the feeder. Then, the feeder transfers the single workpiece to the empty pallet and the pallet with the single workpiece to the carrier on the feed end of the first conveyor. Material cleaning: The mechanical transfer mechanism moves the workpiece on the material tray at the feed end to the cleaning machine, where the cleaning machine rinses and dries the workpiece. During this process, the mechanical transfer mechanism transfers the empty material tray to the second input end, and the third conveyor transports the empty material tray to the second output end and then stops. One-time inspection: After the workpiece is cleaned, the mechanical transfer mechanism transfers the workpiece in the cleaning machine to the carrier. The first conveyor drives the carrier to the material picking position. The inspection personnel or equipment inspect the workpiece at the material picking position from the inspection protective table. For undamaged workpieces, they are put back on the carrier and the conveying continues. Secondary inspection: The mechanical transfer mechanism transfers the inspected workpiece to the measuring mechanism. During the workpiece inspection process, the mechanical transfer mechanism transfers the empty tray on the second output end to the carrier. After the workpiece inspection is completed, the mechanical transfer mechanism takes out the workpiece from the measuring mechanism and places it on the tray. Material output: The first conveyor moves the inspected carrier to the discharge end. The mechanical transfer mechanism transfers the tray containing the workpiece on the carrier to the corresponding position of the unloading machine according to the inspection results and outputs it. During this process, the empty carrier is transferred by the first conveyor to the second transfer machine. The second transfer machine transfers the empty carrier to the first input end, and the second conveyor reverses the conveying direction to transfer the empty carrier back to the first transfer machine, thus performing carrier circulation.

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