A cleaning device and method for automobile metal parts

Abstract

This invention provides a cleaning device and method for automotive metal parts, belonging to the technical field of automotive parts cleaning devices. The cleaning device includes an ultrasonic cleaner and a cleaning tank assembly within the ultrasonic cleaner. A cleaning frame for carrying workpieces is placed inside the cleaning tank assembly, and a placement rod is placed on the cleaning frame. A transfer assembly is located within the ultrasonic cleaner and is used to transfer the cleaning frame. A cleaning adjustment assembly is located on the cleaning frame. This invention, by setting up structures such as push rods, protrusion groups, and adjustment frames, creates a staggered vertical arrangement of annular workpieces densely arranged along the placement rod, effectively increasing the gap between workpieces, breaking up cleaning dead zones caused by workpiece adhesion, and allowing the cleaning fluid to fully enter the gaps and inner holes of the workpieces. Simultaneously, it provides a discharge channel for impurities, thereby improving the cleaning uniformity and cleaning effect of complex-structured workpieces.

Description

Technical Field

[0001] This invention belongs to the technical field of automotive parts cleaning devices, specifically relating to a cleaning device and method for automotive metal parts. Background Technology

[0002] In the field of automotive metal parts cleaning and precision machining post-processing, the cleanliness of metal parts has a significant impact on their assembly performance and service life. In particular, ring-shaped metal parts are widely used in bearings, gears and connecting structures. During cleaning, their inner holes, grooves and gaps between adjacent workpieces are prone to leaving contaminants such as cutting fluid, metal shavings and oil stains.

[0003] Chinese patent CN109174715B discloses a cleaning device for automotive metal parts, including a processing platform. A first fixed support rod is fixedly connected to a 90-degree angle at the bottom of the outer surface of the processing platform. A caster wheel is fixedly connected to the end of each first fixed support rod away from the processing platform. A first fixed hole is formed in the middle of one side of the top surface of the platform, and a first fixed support plate is inserted into and fixedly connected to the surface of the first fixed hole. This cleaning device for automotive metal parts effectively improves overall cleaning efficiency. It can effectively clean the outer surfaces of multiple annular metal parts fitted onto the rotating support rod, improving overall cleaning efficiency and effect. It also allows for rapid material discharge and convenient material collection, eliminating the need for rearranging the annular metal parts, thus improving overall work efficiency.

[0004] However, the above technical solutions still have the following problems: when the annular workpieces are densely arranged along the support rod, the workpieces are prone to sticking together or having too small a gap, making it difficult for the cleaning fluid to flow effectively between the workpieces and in the inner hole area, thus creating obvious cleaning dead zones; at the same time, the posture of the workpieces does not change much during the cleaning process, making it difficult to break the bubble adhesion and cavitation shielding phenomenon, especially in deep hole or groove structure, where contaminants are easy to remain and the discharge path is limited, thus affecting the overall cleaning uniformity and cleaning efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a cleaning device and method for automotive metal parts, which aims to solve the problem in the prior art where the dense arrangement of annular workpieces makes it difficult for the cleaning fluid to enter the gaps and inner holes, easily forming cleaning dead zones and making it difficult for impurities to be discharged.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cleaning device for automotive metal parts, comprising: an ultrasonic cleaner and a cleaning tank assembly disposed within the ultrasonic cleaner, wherein a cleaning frame for carrying workpieces is placed inside the cleaning tank assembly, and a placement rod is placed on the cleaning frame.

[0007] A transfer assembly is installed inside the ultrasonic cleaner; the transfer assembly is used to transfer the cleaning frame.

[0008] A cleaning adjustment assembly is set on the cleaning frame. The cleaning adjustment assembly is equipped with an adjustment unit and a control unit. The adjustment unit includes an adjustment frame that is slidably set in the cleaning frame and a push rod set on the adjustment frame. The push rod is located below the placement rod and can move and rotate along the axis. The outer surface of the push rod is provided with a group of protrusions that are spaced apart along the axis and staggered in the circumferential direction. When the adjustment frame moves upward, it drives the push rod to approach the placement rod, so that the protrusion group contacts the workpiece and alternately lifts the workpiece.

[0009] The control unit includes a pusher for driving the adjustment frame to move up and down and a placement frame for carrying the cleaning frame. The pusher can drive the adjustment frame to move upward so that one end of the placement rod is raised to tilt the workpiece as a whole, and maintain the workpiece in a misaligned state during the tilting process.

[0010] Its effect is that by alternately lifting the workpiece with the protrusions on the pusher, the densely arranged annular workpieces are staggered vertically, breaking the cleaning dead zone, and promoting the cleaning fluid to fully enter the gaps and inner holes, thus significantly improving the cleaning uniformity.

[0011] A further technical solution of the present invention is as follows: a limiting block that cooperates with the adjusting frame is provided at the bottom of the cleaning frame; a slot for placing a placement rod is provided on the cleaning frame; a limiting cylinder is provided on the adjusting frame; multiple sets of limiting cylinders are provided and located directly below the placement rod; a push rod is rotatably disposed inside the limiting cylinder; one end of the push rod is connected to a first elastic element; the other end of the first elastic element is connected to the limiting cylinder; multiple sets of wave blocks are provided on the inner wall of the cleaning frame; one end of the push rod contacts the wave surface of the wave block; a spiral groove is provided inside the limiting cylinder along its length; a sliding column that cooperates with the spiral groove is provided on the push rod so that the push rod rotates synchronously when moving axially; two sets of protrusion groups are provided, each set of protrusion groups including multiple protrusions, so that different sets of protrusions contact different workpieces in sequence when the push rod rotates.

[0012] Its effect is that, through the coordinated action of the wave block, spiral groove and the first elastic element, the push rod rotates synchronously when it moves back and forth in the axial direction, and the convex group moves different workpieces in sequence to realize the dynamic change of the workpiece gap, which is conducive to the discharge of impurities.

[0013] A further technical solution of the present invention is that the adjustment unit further includes a rotating frame rotatably mounted on the cleaning frame, the rotating frame being provided with a limiting groove, and multiple sets of limiting grooves being provided. The placement rod is placed in the limiting groove. A second elastic element is provided on the rotating frame, and the other end of the second elastic element is connected to the cleaning frame. An L-shaped pressure block is rotatably mounted on one side of the limiting groove. A third elastic element is connected to the pivot position of the L-shaped pressure block, and the other end of the third elastic element is connected to the limiting groove. A push block is provided on the adjustment frame, and the push block is located directly below the horizontal section of the L-shaped pressure block. When the adjustment frame moves upward, the push block drives the L-shaped pressure block to rotate to limit and fix the placement rod.

[0014] A further technical solution of the present invention is as follows: a guide groove is provided at the end of the adjusting frame away from the push block, the placement rod is located inside the guide groove, a rack is provided on the side of the guide groove, a gear that cooperates with the rack is provided on the placement rod, positioning blocks are provided on both sides of the placement rod, two sets of positioning blocks are provided between the limiting groove and the guide groove and are in contact with the limiting groove and the guide groove, a drain groove is provided on the placement rod along its axial direction, a spring is provided inside the rotating frame, an insert plate is provided on one side of the adjusting frame, one end of the insert plate is located inside the rotating frame and is limited by the rotating frame, one end of the spring is connected to the insert plate, and the elastic force of the spring is less than the elastic force of the second elastic element.

[0015] Its effect is that the rack and pinion drive the rotating rod to rotate, which, combined with the spiral drain groove, forms a spiral flow, promoting the circulation of cleaning fluid in the gaps and inner holes of the workpiece. At the same time, the spring and the insert plate ensure smooth adjustment.

[0016] A further technical solution of the present invention is that the ultrasonic cleaner is provided with a feed port and a discharge port on both sides, and a conveying roller is provided at both the feed port and the discharge port. The cleaning tank group includes multiple sets of cleaning cylinders arranged inside the ultrasonic cleaner. The cleaning cylinders are evenly arranged inside the ultrasonic cleaner on the side near the feed port. The cleaning cylinders are filled with cleaning liquid. An air-cutting cylinder and a drying cylinder are arranged inside the ultrasonic cleaner on the side near the discharge port. The air-cutting cylinder is arranged adjacent to the cleaning cylinder. A lifting handle is provided at the upper end of the cleaning frame.

[0017] A further technical solution of the present invention is that the transfer assembly includes a track group slidably disposed inside the ultrasonic cleaner, the track group being disposed directly above the cleaning tank group, and a hook cooperating with the lifting handle being disposed at the bottom of the track group, with multiple sets of hooks evenly disposed.

[0018] A further technical solution of the present invention is that the placement rack is provided in two sets, one set is used in conjunction with the washing cylinder, and the other set is used in conjunction with the air-cutting cylinder and the drying cylinder. One end of the placement rack is horizontally set and extends to the bottom of the washing cylinder. The washing frame is made of metal. The upper surface of the placement rack that contacts the washing frame is magnetic. One end of the push rack extends to the bottom of the washing cylinder and is set in a U-shape.

[0019] A further technical solution of the present invention is that the ultrasonic cleaner is provided with a first driving device capable of driving the conveyor roller, a second driving device capable of driving the track assembly to move, and a third driving device capable of driving the placement frame and the push frame to move up and down. The first elastic element is a spring, the second elastic element is a torsion spring, and the third elastic element is a torsion spring.

[0020] A method for cleaning automotive metal parts includes the following steps:

[0021] S1. Pass the ring-shaped workpieces sequentially onto the placement bar, place the placement bar in the cleaning frame, and send them into the ultrasonic cleaning machine through the conveyor roller at the loading port.

[0022] S2. The track assembly in the transfer component drives the hook to hook the lifting handle of the cleaning frame, and transfers the cleaning frame into the cleaning cylinder of the cleaning tank assembly for ultrasonic cleaning.

[0023] S3. The pusher pushes the adjusting frame upward, causing the pusher to move and rotate back and forth under the action of the wave block and the spiral groove. The convex block group alternately lifts the workpiece, causing it to be misaligned vertically.

[0024] S4. The adjusting frame continues to move upward, the push block pushes the L-shaped pressure block to lock the placement bar, and at the same time the rack and gear mesh to drive the placement bar to rotate, and the sewage trough forms a spiral flow cleaning.

[0025] S5. The pusher continues to move upward, causing the rotating frame to lift one end of the placement bar, tilting the workpiece as a whole and maintaining a misaligned state, which promotes the discharge of impurities from deep holes and gaps.

[0026] S6. After cleaning, the cleaning frame enters the air-cutting cylinder and the drying cylinder in sequence. The moisture is removed and dried by the same adjustment action, and finally it is output from the discharge port through the conveyor roller.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This invention, by setting up structures such as push rods, protrusion groups, and adjustment frames, enables the push rod to sequentially lift and move different workpieces through staggered protrusions during its upward movement. This causes the annular workpieces densely arranged along the placement rod to form an up-down misalignment, effectively increasing the gap between the workpieces, breaking the cleaning dead zone caused by the workpieces sticking together, and allowing the cleaning fluid to fully enter the gaps and inner hole areas of the workpieces. At the same time, it provides a discharge channel for impurities, thereby improving the cleaning uniformity and cleaning effect of complex structure workpieces.

[0029] 2. This invention uses a rack and gear to drive the rotating rod, and combined with a spirally arranged drain groove, the rod rotates and forms a spiral flow during ultrasonic cleaning, thereby driving the cleaning fluid to circulate in the gaps and inner holes of the workpiece. At the same time, the upward movement of the adjustment frame tilts the workpiece as a whole, which accelerates the discharge of air bubbles and impurities while maintaining the misalignment state, thereby further improving the cleaning efficiency and draining capacity of deep holes and groove structures. Attached Figure Description

[0030] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0031] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the internal structure of a specific embodiment of the present invention;

[0033] Figure 3 This is a partial structural cross-sectional view of a specific embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the cleaning frame in a specific embodiment of the present invention;

[0035] Figure 5 This is a partial cross-sectional view of the cleaning frame in a specific embodiment of the present invention;

[0036] Figure 6 for Figure 5 Enlarged structural diagram at point A;

[0037] Figure 7 This is a schematic diagram of the internal structure of the cleaning frame in a specific embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram of the installation structure of the adjusting frame and the rotating frame in a specific embodiment of the present invention;

[0039] Figure 9 This is a schematic diagram of the structure of the placing rod and the push rod in a specific embodiment of the present invention;

[0040] Figure 10 This is a partial cross-sectional view of the cleaning frame in a specific embodiment of the present invention;

[0041] Figure 11 This is a schematic diagram showing the tilt state of the rotating frame and the adjusting frame during operation in a specific embodiment of the present invention.

[0042] In the diagram: 1. Ultrasonic cleaning machine; 11. Feed inlet; 12. Discharge inlet; 13. Conveyor roller; 2. Cleaning tank assembly; 21. Cleaning cylinder; 22. Air-cutting cylinder; 23. Drying cylinder; 3. Cleaning frame; 31. Lifting handle; 32. Placement bar; 321. Gear; 322. Positioning block; 323. Drainage trough; 33. Limiting block; 34. Corrugated block; 4. Transfer assembly; 41. Track assembly; 42. Hook; 5. Cleaning adjustment. Components; 51. Adjusting frame; 511. Limiting cylinder; 512. Spiral groove; 52. Push rod; 521. First elastic element; 522. Sliding column; 523. Protrusion assembly; 53. Rotating frame; 531. Limiting groove; 532. Second elastic element; 533. L-shaped pressure block; 534. Third elastic element; 535. Spring piece; 54. Push block; 55. Guide groove; 551. Rack; 56. Insert plate; 6. Placement frame; 7. Push frame. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] Please see Figures 1-11 The present invention provides the following technical solution: a cleaning device for automotive metal parts, comprising an ultrasonic cleaner 1, a cleaning tank assembly 2, a cleaning frame 3, a transfer assembly 4, and a cleaning adjustment assembly 5.

[0045] An ultrasonic cleaner 1 is placed horizontally on the ground. A cleaning tank assembly 2 is located inside the ultrasonic cleaner 1. The cleaning tank assembly 2 is used to clean the surface of the workpiece and dry any residual moisture. A cleaning frame 3 is located inside the ultrasonic cleaner 1 and is used to hold the ring-shaped workpiece, moving it sequentially through the cleaning tank assembly 2 for cleaning. A transfer assembly 4 is located inside the ultrasonic cleaner 1 and can automatically transfer the cleaning frame 3, sending the cleaning frame 3 containing the workpiece into the ultrasonic cleaner 1 for cleaning and then sending the cleaned workpiece out. A cleaning adjustment assembly 5 is located on the cleaning frame 3 and can adjust the workpiece being cleaned, assisting in cleaning contaminants from its surface and improving the cleanliness and efficiency of the workpiece surface.

[0046] like Figures 1-3As shown, the ultrasonic cleaner 1 has a loading port 11 and a discharging port 12 on both sides. A conveyor roller 13 is installed at both the loading port 11 and the discharging port 12. The conveyor roller 13 can rotate on a fixed axis. The ultrasonic cleaner 1 has a first driving device (not shown in the figure) inside that can drive the conveyor roller 13. During cleaning, the cleaning frame 3 containing the workpiece is first placed on the conveyor roller 13 at the loading port 11. Then, the conveyor roller 13 is controlled to rotate and send the cleaning frame 3 into the ultrasonic cleaner 1 for cleaning. The cleaned workpiece is then discharged from the discharging port 12 by the conveyor roller 13.

[0047] The cleaning tank assembly 2 includes multiple cleaning cylinders 21 disposed inside the ultrasonic cleaner 1. The cleaning cylinders 21 are evenly arranged inside the ultrasonic cleaner 1 near the feed inlet 11. Each cleaning cylinder 21 contains cleaning fluid, and the workpiece is cleaned using ultrasonic control of the cleaning fluid. Inside the ultrasonic cleaner 1, near the discharge inlet 12, are an air-cutting cylinder 22 and a drying cylinder 23, arranged adjacent to the cleaning cylinders 21. The workpieces cleaned in the cleaning cylinders 21 first enter the air-cutting cylinder 22, where air is blown onto the workpieces to remove surface moisture. Then, the workpieces enter the drying cylinder 23, which dries the workpieces, removing residual moisture from the surface and interior. The drying cylinder 23 is located near the discharge inlet 12, and the dried workpieces are discharged from the discharge inlet 12, completing the workpiece cleaning process.

[0048] like Figures 2-5 As shown, a lifting handle 31 is provided at the upper end of the cleaning frame 3. The transfer assembly 4 includes a track group 41 that is slidably disposed inside the ultrasonic cleaner 1. The track group 41 is located directly above the cleaning tank group 2. A hook 42 that cooperates with the lifting handle 31 is provided at the bottom of the track group 41. Multiple hooks 42 are evenly arranged. The track group 41 can drive the lifting handle 31 to move along the inside of the ultrasonic cleaner 1. A second driving device (not shown in the figure) is provided inside the ultrasonic cleaner 1 that can drive the track group 41 to move.

[0049] After the cleaning frame 3 is sent into the ultrasonic cleaner 1, the track assembly 41 moves downward to move the hook 42 to be level with the lifting handle 31. Then the track assembly 41 moves horizontally and hooks the lifting handle 31 through the hook 42. Then the track assembly 41 moves the cleaning frame 3 into the cleaning tank assembly 2. The track assembly 41 can synchronously transfer multiple sets of cleaning frames 3 in the cleaning tank assembly 2 to achieve continuous cleaning of the cleaning frame 3.

[0050] like Figures 5-9As shown, a set of placement rods 32 are placed on the cleaning frame 3. Multiple sets of placement rods 32 are evenly arranged. The annular workpiece to be cleaned can be threaded onto the placement rods 32, and then the placement rods 32 are placed on the upper surface of the cleaning frame 3. The cleaning frame 3 has slots for placing the placement rods 32. The cleaning adjustment assembly 5 is equipped with an adjustment unit, which includes an adjustment frame 51 slidably disposed inside the cleaning frame 3. A limiting block 33 is provided at the bottom of the cleaning frame 3 to cooperate with the adjustment frame 51, ensuring that the adjustment frame 51 remains horizontal when moving up and down along the limiting block 33. When the adjustment frame 51 moves upward, it approaches the placement rods 32. Multiple sets of limiting cylinders 511 are provided on the adjustment frame 51 and are located directly below the placement rods 32. A push rod 52 is rotatably mounted inside the limiting cylinder 511. The push rod 52 is located directly below and parallel to the placement rod 32. One end of the push rod 52 is connected to a first elastic element 521, and the other end of the first elastic element 521 is connected to the limiting cylinder 511. Multiple sets of wave blocks 34 are provided on the inner wall of the cleaning frame 3. Under the action of the first elastic element 521, the end of the push rod 52 away from the first elastic element 521 can contact the wave surface of the wave block 34. In this embodiment, the first elastic element 521 is set as a spring. A spiral groove 512 is provided inside the limiting cylinder 511 along its length direction, and a sliding post 522 that cooperates with the spiral groove 512 is provided on the push rod 52.

[0051] When the push rod 52 moves upward and approaches the placement rod 32, one end of the push rod 52 is always in contact with the wave block 34. Under the action of the wave surface of the wave block 34, the push rod 52 can move horizontally, approaching or moving away from the limiting cylinder 511. Since the push rod 52 is provided with a sliding column 522 that cooperates with the spiral groove 512, when the push rod 52 moves horizontally back and forth, under the cooperation of the sliding column 522 and the spiral groove 512, the push rod 52 can rotate back and forth along its axis.

[0052] Two sets of protrusions 523 are provided on the outer surface of the push rod 52. The two sets of protrusions 523 are arranged at intervals along the axial direction of the push rod 52 and are staggered in the circumferential direction of the push rod 52. Each set of protrusions 523 includes multiple protrusions, which are arranged sequentially along the axial direction of the push rod 52. When the push rod 52 moves to the end position of its axial stroke, it rotates itself, causing the protrusions in the two sets of protrusions 523 to rotate to preset angle positions. During the rotation of the push rod 52, the protrusions of different sets can contact the workpiece on the placement rod 32 in sequence, thereby generating a lifting and pushing action on the workpiece.

[0053] During cleaning, the cleaning frame 3 is first inserted into the cleaning cylinder 21. Then, the control adjustment frame 51 drives the push rod 52 to move upwards towards the placement rod 32. At this time, the protrusion group 523 on the push rod 52 begins to contact the workpiece. Under the combined action of the wave block 34, the spiral groove 512, and the first elastic element 521, the push rod 52 moves back and forth along its axial direction while simultaneously rotating back and forth on its fixed axis. As the push rod 52 continues to move upwards, the protrusions on the two sets of protrusion groups 523 alternately contact different workpieces on the placement rod 32, lifting and pushing the workpieces upwards, creating gaps between adjacent workpieces to facilitate the flow of cleaning fluid between the workpieces and the discharge of impurities.

[0054] like Figures 4-11 As shown, the adjustment unit also includes a rotating frame 53 rotatably mounted on the cleaning frame 3. The rotating frame 53 is provided with a limiting groove 531. Multiple sets of limiting grooves 531 are provided. The placement rod 32 can be placed in the limiting groove 531 and limited therein. The rotating frame 53 is provided with a second elastic element 532. The other end of the second elastic element 532 is connected to the cleaning frame 3. The second elastic element 532 can make the rotating frame 53 fit tightly against the inner wall of the cleaning frame 3 and keep the limiting groove 531 in a horizontal state, ensuring that the limiting groove 531 supports and limits the placement rod 32. In this embodiment, the second elastic element 532 is set as a torsion spring. An L-shaped pressure block 533 is rotatably mounted on one side of the limiting groove 531. A third elastic element 534 is connected to the pivot of the L-shaped pressure block 533. The other end of the third elastic element 534 is connected to the limiting groove 531. Under the action of the third elastic element 534, one end of the L-shaped pressure block 533 is in a vertical state, and the other end is in a horizontal state and located away from the limiting groove 531. In this embodiment, the third elastic element 534 is set as a torsion spring. A push block 54 is provided on the adjusting frame 51. The push block 54 is located directly below the horizontal section of the L-shaped pressure block 533. When the adjusting frame 51 moves upward, the push block 54 can contact the horizontal section of the L-shaped pressure block 533 and push it to rotate, rotating the initially vertical section of the L-shaped pressure block 533 towards the placement rod 32 until the L-shaped pressure block 533 rotates 90°. At this time, one end of the L-shaped pressure block 533 is horizontal and covers the limit groove 531 directly above it and contacts the side of the placement rod 32, limiting the placement rod 32 and ensuring that the placement rod 32 is in a horizontal state. The other end of the L-shaped pressure block 533 is vertical and slides in contact with the side of the push block 54.

[0055] The adjusting frame 51 has a guide groove 55 at the end away from the push block 54. The placement rod 32 is located inside the guide groove 55. A rack 551 is provided on the side of the guide groove 55. A gear 321 that meshes with the rack 551 is provided on the placement rod 32. Positioning blocks 322 are provided on both sides of the placement rod 32. The two sets of positioning blocks 322 are positioned between the limiting groove 531 and the guide groove 55 and are in contact with the limiting groove 531 and the guide groove 55. The two sets of positioning blocks 322 can limit the axial movement of the placement rod 32. A drain trough 323 is provided along the axial direction of the placement rod 32. The drain trough 323 is spirally arranged between the two sets of positioning blocks 322.

[0056] During cleaning, the adjusting frame 51 moves upward and approaches the placement rod 32. The push block 54 first moves upward and contacts the L-shaped pressure block 533, then pushes the L-shaped pressure block 533 to rotate and restricts the placement rod 32 in the limiting groove 531. Subsequently, the rack 551 contacts the gear 321 and drives the placement rod 32 to rotate on a fixed axis. Driven by the rotation of the drain groove 323 on the placement rod 32, a spiral flow is formed during the ultrasonic cleaning process, which drives the cleaning fluid to circulate in the gap and inner hole of the workpiece, improving the efficiency of impurity removal and discharge.

[0057] A spring plate 535 is provided inside the rotating frame 53, and an insert plate 56 is provided on one side of the adjusting frame 51. One end of the insert plate 56 is located inside the rotating frame 53 and is limited by the rotating frame 53, so that the insert plate 56 can only slide back and forth inside the rotating frame 53. One end of the spring plate 535 is connected to the insert plate 56, and the elastic force of the spring plate 535 is less than the elastic force of the second elastic member 532, so as to ensure that the second elastic member 532 will not deform before the adjusting frame 51 moves upward and compresses the spring plate 535 to the limit position. When the adjusting frame 51 moves upward under the action of external force, the spring plate 535 is compressed, and the insert plate 56 slides along the inside of the rotating frame 53 and approaches the placement rod 32. When the adjusting frame 51 is not pushed by external force, the adjusting frame 51 moves downward away from the placement rod 32 under the action of the elastic force of the spring plate 535 and its own weight.

[0058] like Figures 1-6 and Figure 11As shown, the cleaning adjustment assembly 5 is also equipped with a control unit. The control unit includes a placement rack 6 that is slidably installed inside the ultrasonic cleaner 1. There are two sets of placement racks 6, one set for use with the cleaning cylinder 21 and the other set for use with the air-cutting cylinder 22 and the drying cylinder 23. One end of the placement rack 6 is horizontally positioned and extends to the bottom inside the cleaning cylinder 21. The cleaning frame 3 can be placed on the placement rack 6. The cleaning frame 3 is made of metal. The upper surface of the placement rack 6 that contacts the cleaning frame 3 is magnetic, which can attract the cleaning frame 3 and prevent the cleaning frame 3 from shaking during ultrasonic cleaning. A pusher 7 is slidably installed inside the ultrasonic cleaner 1 and is positioned above the placement rack 6. One end of the pusher 7 extends to the bottom inside the cleaning cylinder 21 and is U-shaped, so that the end of the pusher 7 can contact the bottom surface of the adjustment frame 51 and prevent the pusher 7 from interfering with the cleaning frame 3 when it moves up and down. The ultrasonic cleaner 1 is equipped with a third drive device (not shown in the figure) that can drive the placement rack 6 and the pusher 7 to move up and down.

[0059] During operation, first adjust the placement frame 6 and the push frame 7 to a suitable height. Then, place the cleaning frame 3 on the placement frame 6 and allow it to be attracted to it. At this point, the end of the push frame 7 is in contact with the bottom surface of the adjusting frame 51. Subsequently, control the push frame 7 to push the adjusting frame 51 upward. When the push frame 7 moves downward, the adjusting frame 51 moves downward synchronously under the action of the elastic force of the spring piece 535 and its own weight. When the annular workpiece has a deep hole or groove structure, the push frame 7 pushes the adjusting frame 51 upward until the spring piece 535 is compressed to its limit position. At this point, the adjusting frame 51 slides out from the upper end of the limiting block 33, and the placement rod 32 is just located at the bottom of the guide groove 55. Under the limiting action of the insert plate 56 and the rotating frame 53, the push rod 52 remains parallel to the placement rod 32. At this time, the push frame 7 continues to move upward, while the rotating frame 53 and the adjusting frame 51 remain relatively stationary and begin to rotate on a fixed axis. The end of the placement rod 32 away from the rotating frame 53 gradually moves upward and away from the cleaning frame 3. At this time, the workpiece gradually tilts and remains staggered under the action of the protrusion group 523, allowing the cleaning fluid to flow into the deep holes or grooves of the workpiece, assisting in the discharge of internal air bubbles and impurities. Subsequently, the placement frame 6 and the push frame 7 can be controlled to move up and down synchronously, while maintaining the current tilted state of the workpiece and accelerating the flow rate of the cleaning fluid between the workpieces. At this time, the insert plate 56 is always inserted inside the rotating frame 53, ensuring that the relative position of the adjusting frame 51 and the rotating frame 53 remains unchanged. When the adjusting frame 51 needs to be reset, since the elastic force of the spring piece 535 is less than the elastic force of the second elastic element 532, when the pushing frame 7 moves downward, the second elastic element 532 first drives the rotating frame 53 to rotate, and drives the adjusting frame 51 to rotate together. After the adjusting frame 51 is in a horizontal state, the adjusting frame 51 begins to move downward under the action of the elastic force of the spring piece 535, and is then limited again by the limiting block 33.

[0060] After the workpiece moves from the cleaning cylinder 21 to the air-cutting cylinder 22 and the drying cylinder 23, the placement rack 6 and the pushing rack 7 corresponding to the air-cutting cylinder 22 and the drying cylinder 23 work on the same principle as the former. By controlling the misalignment and tilting of the workpiece, the discharge of residual moisture and drying are accelerated. The workpiece dried in the drying cylinder 23 is taken out through the discharge port 12, and the workpiece to be cleaned is simultaneously put into the loading port 11 for cleaning.

[0061] A method for cleaning automotive metal parts includes the following steps:

[0062] S1. The ring-shaped workpiece is sequentially threaded onto the placement rod 32, and the placement rod 32 is placed in the cleaning frame 3 and fed into the ultrasonic cleaning machine 1 through the conveyor roller 13 of the loading port 11.

[0063] S2. The track group 41 in the transfer component 4 drives the hook 42 to hook the lifting handle 31 of the cleaning frame 3, and transfer the cleaning frame 3 into the cleaning cylinder 21 of the cleaning tank group 2 for ultrasonic cleaning.

[0064] S3, the pusher 7 pushes the adjusting frame 51 upward, so that the pusher 52 moves back and forth and rotates under the action of the wave block 34 and the spiral groove 512, and the protrusion group 523 alternately lifts the workpiece, so that it forms an up-down misalignment;

[0065] S4. The adjusting frame 51 continues to move upward, and the push block 54 pushes the L-shaped pressure block 533 to lock the placement rod 32. At the same time, the rack 551 meshes with the gear 321 to drive the placement rod 32 to rotate, and the sewage trough 323 forms a spiral flow cleaning.

[0066] S5. The pusher 7 continues to move upward, causing the rotating frame 53 to lift one end of the placement rod 32, and the workpiece tilts as a whole and remains in a misaligned state, promoting the discharge of impurities in deep holes and gaps.

[0067] S6. After cleaning, the cleaning frame 3 enters the air-cutting cylinder 22 and the drying cylinder 23 in sequence. The moisture is removed and dried by the same adjustment action, and finally it is output from the discharge port 12 via the conveyor roller 13.

Claims

1. An apparatus for cleaning automotive metal parts, comprising: An ultrasonic cleaner (1) and a cleaning tank assembly (2) disposed within the ultrasonic cleaner (1) are characterized in that a cleaning frame (3) for carrying workpieces is placed inside the cleaning tank assembly (2), and a placement rod (32) is placed on the cleaning frame (3). The transfer component (4) is installed inside the ultrasonic cleaner (1) and is used to transfer the cleaning frame (3). A cleaning adjustment assembly (5) is set on the cleaning frame (3). The cleaning adjustment assembly (5) is equipped with an adjustment unit and a control unit. The adjustment unit includes an adjustment frame (51) that is slidably set in the cleaning frame (3) and a push rod (52) set on the adjustment frame (51). The push rod (52) is located below the placement rod (32) and can move and rotate along the axial direction. The outer surface of the push rod (52) is provided with a group of protrusions (523) that are spaced apart along the axial direction and staggered in the circumferential direction. When the adjustment frame (51) moves upward, it drives the push rod (52) to approach the placement rod (32), so that the group of protrusions (523) contacts the workpiece and alternately lifts the workpiece. The control unit includes a pusher (7) for driving the adjustment frame (51) to move up and down and a placement frame (6) for carrying the cleaning frame (3). The pusher (7) can drive the adjustment frame (51) to move up and lift one end of the placement rod (32) to tilt the workpiece as a whole, and maintain the workpiece misalignment during the tilting process. The bottom of the cleaning frame (3) is provided with a limiting block (33) that cooperates with the adjusting frame (51). The cleaning frame (3) is provided with a slot for placing the placement rod (32). The adjusting frame (51) is provided with a limiting cylinder (511). There are multiple sets of limiting cylinders (511) located directly below the placement rod (32). The push rod (52) is rotatably disposed in the limiting cylinder (511). One end of the push rod (52) is connected to a first elastic element (521), and the other end of the first elastic element (521) is connected to the limiting cylinder (511). The cleaning frame (3) is located inside the limiting cylinder (511). The wall is provided with multiple sets of wave blocks (34), one end of the push rod (52) contacts the wave surface of the wave block (34), the inside of the limiting cylinder (511) is provided with a spiral groove (512) along its length direction, the push rod (52) is provided with a sliding column (522) that cooperates with the spiral groove (512) so that the push rod (52) rotates synchronously when it moves axially, and two sets of protrusion groups (523) are provided, each set of protrusion groups (523) includes multiple protrusions so that when the push rod (52) rotates, different protrusion groups (523) contact different workpieces in sequence; During the upward movement, the pusher (52) lifts and moves different workpieces in sequence through staggered protrusions, thereby causing the annular workpieces densely arranged along the placement bar (32) to form an up-down misaligned state.

2. The cleaning device for automotive metal parts according to claim 1, characterized in that: The adjustment unit also includes a rotating frame (53) rotatably mounted on the cleaning frame (3). The rotating frame (53) is provided with a limiting groove (531). Multiple sets of limiting grooves (531) are provided. The placement rod (32) is placed in the limiting groove (531). The rotating frame (53) is provided with a second elastic element (532). The other end of the second elastic element (532) is connected to the cleaning frame (3). An L-shaped pressure block (533) is rotatably mounted on one side of the limiting groove (531). A third elastic element (534) is connected to the pivot position of the L-shaped pressure block (533). The other end of the third elastic element (534) is connected to the limiting groove (531). A push block (54) is provided on the adjustment frame (51). The push block (54) is located directly below the horizontal section of the L-shaped pressure block (533). When the adjustment frame (51) moves upward, the push block (54) drives the L-shaped pressure block (533) to rotate to limit and fix the placement rod (32).

3. The cleaning device for automotive metal parts according to claim 2, characterized in that: The adjusting frame (51) has a guide groove (55) at the end away from the push block (54). The placing rod (32) is located inside the guide groove (55). A rack (551) is provided on the side of the guide groove (55). A gear (321) that meshes with the rack (551) is provided on the placing rod (32). Positioning blocks (322) are provided on both sides of the placing rod (32). Two sets of positioning blocks (322) are located between the limiting groove (531) and the guide groove (55), and are positioned in relation to the limiting groove. The groove (531) and the guide groove (55) are in contact. A drain groove (323) is provided on the storage rod (32) along its axial direction. A spring piece (535) is provided inside the rotating frame (53). An insert plate (56) is provided on one side of the adjusting frame (51). One end of the insert plate (56) is located inside the rotating frame (53) and is limited by the rotating frame (53). One end of the spring piece (535) is connected to the insert plate (56). The elastic force of the spring piece (535) is less than the elastic force of the second elastic element (532).

4. The cleaning device for automotive metal parts according to claim 3, characterized in that: The ultrasonic cleaner (1) has a feed inlet (11) and a discharge inlet (12) on both sides. A conveyor roller (13) is provided at both the feed inlet (11) and the discharge inlet (12). The cleaning tank group (2) includes multiple cleaning cylinders (21) inside the ultrasonic cleaner (1). The cleaning cylinders (21) are evenly arranged inside the ultrasonic cleaner (1) on the side near the feed inlet (11). The cleaning cylinders (21) are filled with cleaning liquid. An air-cutting cylinder (22) and a drying cylinder (23) are provided inside the ultrasonic cleaner (1) on the side near the discharge inlet (12). The air-cutting cylinder (22) is arranged adjacent to the cleaning cylinder (21). A lifting handle (31) is provided at the upper end of the cleaning frame (3).

5. A cleaning device for automotive metal parts according to claim 4, characterized in that: The transfer assembly (4) includes a track group (41) that is slidably disposed inside the ultrasonic cleaner (1). The track group (41) is disposed directly above the cleaning tank group (2). The bottom of the track group (41) is provided with a hook (42) that cooperates with the lifting handle (31). Multiple sets of hooks (42) are evenly disposed.

6. The cleaning device for automotive metal parts according to claim 5, characterized in that: The placement rack (6) is provided in two sets. One set is used in conjunction with the washing cylinder (21), and the other set is used in conjunction with the air cutting cylinder (22) and the drying cylinder (23). One end of the placement rack (6) is set horizontally and extends to the bottom of the washing cylinder (21). The washing frame (3) is made of metal. The upper surface of the placement rack (6) in contact with the washing frame (3) is magnetic. One end of the push rack (7) extends to the bottom of the washing cylinder (21) and is set in a U-shape.

7. A cleaning device for automotive metal parts according to claim 6, characterized in that: The ultrasonic cleaner (1) is equipped with a first driving device that can drive the conveyor roller (13), a second driving device that can drive the track group (41) to move, and a third driving device that can drive the placement frame (6) and the push frame (7) to move up and down. The first elastic element (521) is a spring, the second elastic element (532) is a torsion spring, and the third elastic element (534) is a torsion spring.

8. A method for cleaning automotive metal parts, characterized in that: The cleaning device for automotive metal parts as described in claim 7 includes the following steps: S1. The ring-shaped workpiece is sequentially threaded onto the placement rod (32), and the placement rod (32) is placed in the cleaning frame (3). It is then fed into the ultrasonic cleaner (1) through the conveyor roller (13) of the loading port (11). S2. The track group (41) in the transfer assembly (4) drives the hook (42) to hook the lifting handle (31) of the cleaning frame (3) and transfer the cleaning frame (3) into the cleaning cylinder (21) of the cleaning tank group (2) for ultrasonic cleaning. S3, the pusher (7) pushes the adjusting frame (51) upward, so that the pusher (52) moves back and forth and rotates under the action of the wave block (34) and the spiral groove (512), and the protrusion group (523) alternately lifts the workpiece, so that it forms an up-down misalignment; S4. The adjusting frame (51) continues to move upward, and the push block (54) pushes the L-shaped pressure block (533) to lock the storage rod (32). At the same time, the rack (551) meshes with the gear (321) to drive the storage rod (32) to rotate, and the sewage trough (323) forms a spiral flow cleaning. S5. The push frame (7) continues to move upward, causing the rotating frame (53) to lift one end of the placement rod (32), and the workpiece tilts as a whole and remains in a misaligned state, promoting the discharge of impurities in deep holes and gaps; S6. After cleaning, the cleaning frame (3) enters the air cutting cylinder (22) and the drying cylinder (23) in sequence. The moisture is removed and dried by the same adjustment action, and finally output from the discharge port (12) through the conveyor roller (13).

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