Ultrasonic cleaning device for metal workpieces

By introducing adjustment structures and auxiliary structures into the ultrasonic cleaning device, the cleaning frame can be automatically and safely removed and water splashing can be reduced, solving the problems of scalding and water splashing caused by high cleaning fluid temperature, and improving operational safety and convenience.

CN223417885UActive Publication Date: 2025-10-10SHENZHEN RUIDEFENG TECH
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Patent Information

Application Number
CN202422769653.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-14
Publication Date
2025-10-10
Estimated Expiration
2034-11-14

AI Technical Summary

Technical Problem

In the prior art, due to the high temperature of the cleaning liquid, when people take the cleaning frame, the liquid may splash and cause burns.

Method used

An ultrasonic cleaning device was designed, which includes an adjustment structure and an auxiliary structure. The cleaning frame is driven by a motor-driven screw and a fixed column to move and rotate, avoiding direct manual operation. The wear resistance of the stainless steel plate and the spring limiter are combined to ensure safety. The design of the insertion rod and pull ring prevents water from splashing when metal parts are inserted.

Benefits of technology

The cleaning frame can be automatically and safely removed after cleaning is completed to avoid burns and reduce splashing when metal parts are placed, thereby improving operational safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of ultrasonic cleaning devices, in particular to an ultrasonic cleaning device for metal workpieces. The ultrasonic cleaning device comprises a bottom plate, a power distribution box and an ultrasonic cleaning barrel are fixedly connected to the upper surface of the bottom plate, a control cabinet is fixedly connected to the upper surface of the power distribution box, a cleaning frame is arranged in the ultrasonic cleaning barrel, an adjusting structure is arranged on the side, away from the power distribution box, of the ultrasonic cleaning barrel, and the adjusting structure comprises a fixing plate. The fixing plate is fixedly connected with the ultrasonic cleaning barrel, an auxiliary groove is formed in the fixing plate, an adjusting block is slidably connected into the auxiliary groove, a fixing rod is fixedly connected to the lower surface of the fixing plate, and a motor is fixedly connected to the side, away from the fixing plate, of the fixing rod. The problem that due to the fact that the temperature of cleaning liquid is high, liquid splashing can be caused in the process that a person takes the cleaning frame, and then scalding is likely to be caused is solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to ultrasonic cleaning device technical field especially relates to a kind of ultrasonic cleaning device for metal processing piece. BACKGROUND

[0002] Ultrasonic cleaning device is by bottom plate, distribution box, control cabinet, ultrasonic cleaning barrel and cleaning frame, it is mainly used to clean a kind of ultrasonic cleaning device for metal processing piece, more common in prior art.

[0003] In prior art, personnel directly take out all metal pieces in cleaning frame by hand-carrying cleaning frame, since the temperature of cleaning liquid is heated to improve cleaning effect in the process of cleaning metal piece, since the temperature of cleaning liquid is higher, liquid splashes in the process of taking cleaning frame by personnel, and then scalding problem is easily caused. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in prior art that since the temperature of cleaning liquid is higher, liquid splashes in the process of taking cleaning frame by personnel, and then scalding problem is easily caused, and proposes a kind of ultrasonic cleaning device for metal processing piece.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of ultrasonic cleaning device for metal processing piece, including bottom plate, the upper surface of the bottom plate is fixedly connected with distribution box and ultrasonic cleaning barrel, the upper surface of the distribution box is fixedly connected with control cabinet, the inside of the ultrasonic cleaning barrel is provided with cleaning frame, the side of the ultrasonic cleaning barrel away from distribution box is equipped with adjusting structure, the adjusting structure includes fixed plate, the fixed plate is fixedly connected with ultrasonic cleaning barrel, the inside of the fixed plate is equipped with auxiliary groove, the inside of the auxiliary groove is slidably connected with adjusting block, the lower surface of the fixed plate is fixedly connected with fixed rod, the side of the fixed rod away from fixed plate is fixedly connected with motor, the output end of the motor is fixedly connected with lead screw, the lead screw is rotatably connected with fixed plate, the lead screw is threadedly connected with adjusting block, the side of the adjusting block away from ultrasonic cleaning barrel is fixedly connected with limit board, the side of the limit board close to cleaning frame is fixedly connected with connecting plate, the inner wall of the connecting plate is fixedly connected with fixed column, the arc surface of the fixed column is rotatably connected with rotating block, the lower surface of the rotating block is fixedly connected with link plate, the link plate is fixedly connected with cleaning frame.

[0006] The effect achieved by the above components is: by setting up the adjustment structure, when the personnel need to take out all the cleaned metal parts from the inside of the ultrasonic cleaning barrel, the personnel can start the motor to move the fixed column upward, and the fixed column drives the connecting plate to move upward, and the connecting plate drives the cleaning frame to move upward. The cleaning frame will drive the metal parts after cleaning to move upward until the cleaning frame is completely moved out of the inside of the ultrasonic cleaning barrel, and then rotate the cleaning frame to the side of the connecting plate. At this time, the motor is started again to move the cleaning frame to the lowest point. At this time, the personnel can directly take out the metal parts inside the cleaning frame, thereby avoiding the personnel directly taking the cleaning frame out of the inside of the ultrasonic cleaning barrel with their hands, thereby improving the safety of the personnel.

[0007] Preferably, two limiting rods are fixedly connected to the inner wall of the auxiliary groove, and the two limiting rods are slidably connected to the adjustment block.

[0008] The effects achieved by the above components are as follows: the limiting rod can limit the adjusting block, thereby preventing the adjusting block from being dislocated during the sliding process on the inner wall of the auxiliary groove.

[0009] Preferably, a stopper is fixedly connected to one side of the connecting plate, and the cross section of the stopper is rectangular.

[0010] The effects achieved by the above components are: the stopper can limit the rotating block and accelerate the resetting speed of the rotating block.

[0011] Preferably, the connecting plate is a stainless steel plate.

[0012] The effects achieved by the above components are: the stainless steel plate has good wear resistance and corrosion resistance, which can avoid serious damage to the connecting plate during short-term use.

[0013] Preferably, an auxiliary structure is provided on the upper surface of the ultrasonic cleaning barrel, and the auxiliary structure includes two positioning plates, the two positioning plates are fixedly connected to the ultrasonic cleaning barrel, the inner walls of the positioning plates are provided with connecting grooves, the inner walls of the connecting grooves are slidably connected with moving blocks, the upper surfaces of the two moving blocks are respectively fixedly connected with fixed blocks and connecting blocks, the sides of the fixed blocks and the connecting blocks close to each other are fixedly connected with a rotating rod, the arc surface of the rotating rod is rotatably connected with the positioning column and the auxiliary plate, the inner wall of the positioning column is provided with a plurality of sockets, the inner wall of the fixed block is slidably connected with an insertion rod, and the insertion rod slides with the sockets.

[0014] The effect achieved by the above components is: by setting up the auxiliary structure, when personnel need to place the metal workpiece into the cleaning frame for cleaning, the personnel can first move the insertion rod to slide the insertion rod out of the inside of the socket, and then rotate the auxiliary plate until part of the auxiliary plate enters the cleaning liquid in the ultrasonic cleaning barrel, and finally move the insertion rod to slide the insertion rod into the inner wall of the socket. At this time, the personnel can directly place the metal workpiece on the inclined surface of the auxiliary plate, and then slide it into the cleaning frame by gravity, thereby avoiding splashing of water when the metal workpiece enters the cleaning liquid.

[0015] Preferably, one end of the insertion rod away from the positioning column is fixedly connected to a pull ring, and the cross section of the pull ring is circular.

[0016] The effect achieved by the above components is that the pull ring can facilitate personnel to move the insertion rod, which can improve the convenience of personnel operation.

[0017] Preferably, the arc surface of the insertion rod is covered with a spring, and both ends of the spring are fixedly connected to the insertion rod and the fixing block respectively.

[0018] The effect achieved by the above components is that the spring can limit the insertion rod and prevent the insertion rod from sliding out of the inner wall of the insertion hole by itself.

[0019] In summary, the beneficial effects of the present invention are as follows:

[0020] The utility model discloses that when personnel need to clean metal workpieces, personnel directly place the metal workpieces in the cleaning frame, make the metal workpieces completely enter the cleaning liquid, and then heat the cleaning liquid to improve the cleaning effect of the metal workpieces, and finally start the ultrasonic cleaning barrel to clean the metal workpieces. When the metal workpieces are cleaned, personnel can first start the motor, and the motor drives the screw rod to rotate, and the screw rod drives the adjusting block to move upward, and the adjusting block slides on the arc surface of the limiting rod, wherein the limiting rod can limit the adjusting block, and can prevent the adjusting block from being misaligned during the sliding process of the inner wall of the auxiliary groove, and then the adjusting block drives the limiting plate to move upward, and the limiting plate drives the connecting plate to move upward, and the connecting plate drives the stopper and the fixed column to move upward, wherein the stopper can limit the rotating block, and can speed up the resetting speed of the rotating block, and then the fixed column drives the rotating block to move upward, and the rotating block drives the coupling The connecting plate moves upward, and the connecting plate drives the cleaning frame to move upward, and the cleaning frame drives the metal parts after cleaning to move upward, wherein the connecting plate is a stainless steel plate, which has good wear resistance and corrosion resistance, and can avoid causing more serious damage to the connecting plate during short-term use, until the cleaning frame moves out of the interior of the ultrasonic cleaning barrel, and then the personnel rotates the cleaning frame, and the cleaning frame drives the connecting plate to rotate, and the connecting plate drives the rotating block to rotate until the cleaning frame rotates to one side of the limit plate. At this time, the personnel starts the motor again to move the cleaning frame downward until the cleaning frame moves to the lowest point. At this time, the personnel can directly take out the metal parts in the cleaning frame. By setting the adjustment structure, the effect of assisting personnel to remove the cleaning frame from the interior of the ultrasonic cleaning barrel is achieved, which can avoid burns when personnel directly remove the cleaning frame with their hands, thereby improving the safety of personnel.

[0021] In the present invention, when a person needs to put a metal part into the heated cleaning liquid for cleaning, the person can first use the pull ring to drive the plug rod to move in the direction away from the positioning column, wherein the pull ring can facilitate the person to move the plug rod, which can improve the convenience of the person's operation, and then the plug rod drives the spring to stretch until the plug rod slides out of the inner wall of the socket, and then the person rotates the auxiliary plate to rotate the auxiliary plate in the direction close to the cleaning frame until the distribution auxiliary plate enters the cleaning liquid, and then the person releases the pull ring again, at this time the spring rebounds and drives the plug rod to move in the direction close to the socket until the plug rod slides into the inner wall of the socket, wherein the spring can limit the plug rod, which can prevent the plug rod from sliding out of the inner wall of the socket by itself, and then the person can directly Then place the metal frame on the inclined surface of the auxiliary plate and then slide it into the cleaning frame by the weight of the metal parts. When the metal parts need to be placed in other places inside the cleaning frame, the personnel can move the auxiliary plate to move the auxiliary plate away from the control cabinet. The auxiliary plate drives the positioning column and the rotating rod to move away from the control cabinet. The rotating rod drives the fixed block and the connecting block to move away from the control cabinet. The fixed block and the connecting block respectively drive the moving block to move away from the control cabinet until it moves to the appropriate position and then continues to put in the metal parts. By setting up the auxiliary structure, the effect of avoiding splashing water when people put in metal parts can be achieved, thereby avoiding the splashing water on people and causing harm to their health. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the adjustment structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the local structure of the regulating structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the auxiliary structure of the utility model;

[0026] Figure 5 For this utility model Figure 4 Enlarged view of point A.

[0027] Legend: 1. Base plate; 2. Distribution box; 3. Control cabinet; 4. Ultrasonic cleaning barrel; 5. Adjustment structure; 501. Fixed plate; 502. Auxiliary slot; 503. Fixed rod; 504. Motor; 505. Screw; 506. Limit plate; 507. Connecting plate; 508. Connecting plate; 509. Rotating block; 510. Fixed column; 511. Stop block; 512. Adjustment block; 513. Limiting rod; 6. Auxiliary structure; 601. Positioning plate; 602. Connecting slot; 603. Moving block; 604. Fixed block; 605. Connecting block; 606. Pull ring; 607. Spring; 608. Insert rod; 609. Socket; 610. Positioning column; 611. Auxiliary plate; 612. Rotating rod; 7. Cleaning frame. DETAILED DESCRIPTION

[0028] Reference Figure 1 As shown, the utility model provides a technical solution: an ultrasonic cleaning device for metal processing parts, comprising a base plate 1, a distribution box 2 and an ultrasonic cleaning bucket 4 are fixedly connected to the upper surface of the base plate 1, a control cabinet 3 is fixedly connected to the upper surface of the distribution box 2, a cleaning frame 7 is provided inside the ultrasonic cleaning bucket 4, an adjustment structure 5 is provided on the side of the ultrasonic cleaning bucket 4 away from the distribution box 2, and an auxiliary structure 6 is provided on the upper surface of the ultrasonic cleaning bucket 4.

[0029] The specific settings and functions of the regulating structure 5 and the auxiliary structure 6 are described in detail below.

[0030] Reference Figure 2 and Figure 3As shown, in this embodiment: the adjustment structure 5 includes a fixed plate 501, the fixed plate 501 is fixedly connected to the ultrasonic cleaning barrel 4, an auxiliary groove 502 is opened inside the fixed plate 501, and an adjustment block 512 is slidably connected inside the auxiliary groove 502. The lower surface of the fixed plate 501 is fixedly connected to a fixed rod 503, and the side of the fixed rod 503 away from the fixed plate 501 is fixedly connected to a motor 504, and the output end of the motor 504 is fixedly connected to a screw rod 505, the screw rod 505 is rotatably connected to the fixed plate 501, and the screw rod 505 is threadedly connected to the adjustment block 512, and the adjustment block 512 is away from the ultrasonic cleaning barrel 4. One side is fixedly connected to a limit plate 506, and the side of the limit plate 506 close to the cleaning frame 7 is fixedly connected to a connecting plate 507, and the inner wall of the connecting plate 507 is fixedly connected to a fixed column 510, and the arc surface of the fixed column 510 is rotatably connected to a rotating block 509, and the lower surface of the rotating block 509 is fixedly connected to a connecting plate 508, and the connecting plate 508 is fixedly connected to the cleaning frame 7. By setting the adjustment structure 5, when the personnel need to take out all the cleaned metal parts from the inside of the ultrasonic cleaning barrel 4, the personnel can start the motor 504 to move the fixed column 510 upward, and the fixed column 510 drives the connecting plate 508 to The connecting plate 508 drives the cleaning frame 7 to move upward, and the cleaning frame 7 drives the metal parts after cleaning to move upward until the cleaning frame 7 is completely moved out of the interior of the ultrasonic cleaning barrel 4, and then the cleaning frame 7 is rotated to the side of the connecting plate 508. At this time, the motor 504 is started again to move the cleaning frame 7 to the lowest point. At this time, the personnel can directly take out the metal parts inside the cleaning frame 7, thereby avoiding the personnel directly taking the cleaning frame 7 out of the interior of the ultrasonic cleaning barrel 4 by hand, thereby improving the safety of the personnel. The inner wall of the auxiliary groove 502 is fixedly connected with two limit Rod 513, two limit rods 513 are slidably connected to the adjustment block 512, the limit rod 513 can limit the adjustment block 512, and can prevent the adjustment block 512 from being dislocated during the sliding process of the inner wall of the auxiliary groove 502. A stop block 511 is fixedly connected to one side of the connecting plate 507. The cross-section of the stop block 511 is rectangular. The stop block 511 can limit the rotating block 509, and can speed up the resetting speed of the rotating block 509. The connecting plate 508 is a stainless steel plate. The stainless steel plate has good wear resistance and corrosion resistance, and can avoid causing more serious damage to the connecting plate 508 during short-term use.

[0031] Reference Figure 4 and Figure 5As shown, in this embodiment: the auxiliary structure 6 includes two positioning plates 601, the two positioning plates 601 are fixedly connected to the ultrasonic cleaning barrel 4, the inner wall of the positioning plate 601 is provided with a connecting groove 602, the inner wall of the connecting groove 602 is slidably connected with a moving block 603, the upper surfaces of the two moving blocks 603 are respectively fixedly connected with a fixed block 604 and a connecting block 605, the side where the fixed block 604 and the connecting block 605 are close to each other is fixedly connected with a rotating rod 612, the arc surface of the rotating rod 612 is rotatably connected with a positioning column 610 and an auxiliary plate 611, a plurality of sockets 609 are provided on the inner wall of the positioning column 610, the inner wall of the fixed block 604 is slidably connected with an insertion rod 608, and the insertion rod 608 slides with the insertion hole 609. By setting the auxiliary structure 6, when personnel need to put the metal workpiece into the interior of the cleaning frame 7 for cleaning, the personnel can first move the insertion rod 608 to make the insertion rod 608 slide out of the inner hole 609 The auxiliary plate 611 is rotated until part of the auxiliary plate 611 enters the cleaning liquid in the ultrasonic cleaning barrel 4, and finally the insertion rod 608 is moved to make the insertion rod 608 slide into the inner wall of the insertion hole 609. At this time, the personnel can directly place the metal part on the inclined surface of the auxiliary plate 611, and then slide it into the cleaning frame 7 by gravity, thereby preventing the metal part from splashing water in the process of entering the cleaning liquid. The end of the insertion rod 608 away from the positioning column 610 is fixedly connected to the pull ring 606. The cross-section of the pull ring 606 is circular. The pull ring 606 can facilitate personnel to move the insertion rod 608, which can improve the convenience of personnel operation. The arc surface of the insertion rod 608 is covered with a spring 607. The two ends of the spring 607 are fixedly connected to the insertion rod 608 and the fixed block 604 respectively. The spring 607 can limit the insertion rod 608, which can prevent the insertion rod 608 from sliding out of the inner wall of the insertion hole 609 by itself.

[0032] Working principle: when personnel need to clean metal workpieces, they directly place the metal workpieces in the cleaning frame 7, so that the metal workpieces are completely immersed in the cleaning liquid, and then heat the cleaning liquid to improve the cleaning effect of the metal workpieces, and finally start the ultrasonic cleaning barrel 4 to clean the metal workpieces. When the metal workpieces are cleaned, personnel can first start the motor 504, and the motor 504 drives the screw rod 505 to rotate, and the screw rod 505 drives the adjustment block 512 to move upward, and the adjustment block 512 slides on the arc surface of the limit rod 513, wherein the limit rod 513 can limit the adjustment block 512, and can prevent the adjustment block 512 from being misaligned during the sliding process of the inner wall of the auxiliary groove 502, and then the adjustment block 512 drives the limit plate 506 to move upward, and the limit plate 506 drives the connecting plate 507 to move upward, and the connecting plate 507 drives the stop block 511 and the fixed column 510 to move upward, wherein the stop block 511 can The cleaning frame 7 is then moved to the side of the limit plate 506. At this time, the personnel start the motor 504 again to move the cleaning frame 7 downward until the cleaning frame 7 moves to the lowest point. At this time, the personnel can directly take out the metal parts in the cleaning frame 7.

[0033] In addition, when personnel need to put metal parts into the heated cleaning liquid for cleaning, personnel can first use the pull ring 606 to drive the insertion rod 608 to move away from the positioning column 610, wherein the pull ring 606 can facilitate personnel to move the insertion rod 608, which can improve the convenience of personnel operation, and then the insertion rod 608 drives the spring 607 to stretch until the insertion rod 608 slides out of the inner wall of the socket 609, and then the personnel rotates the auxiliary plate 611 to rotate the auxiliary plate 611 in the direction close to the cleaning frame 7 until the distribution auxiliary plate 611 enters the cleaning liquid, and then the personnel releases the pull ring 606, at this time the spring 607 rebounds and drives the insertion rod 608 to move in the direction close to the socket 609 until the insertion rod 608 slides into the inner wall of the socket 609, wherein the spring 607 can Limiting the insertion rod 608 can prevent the insertion rod 608 from sliding out of the inner wall of the socket 609 by itself. At this time, the personnel can directly place the metal frame on the inclined surface of the auxiliary plate 611 and then slide the metal part into the inside of the cleaning frame 7 by its own weight. When the metal part needs to be placed in other places inside the cleaning frame 7, the personnel can move the auxiliary plate 611 to move the auxiliary plate 611 away from the control cabinet 3. The auxiliary plate 611 drives the positioning column 610 and the rotating rod 612 to move away from the control cabinet 3. The rotating rod 612 drives the fixed block 604 and the connecting block 605 to move away from the control cabinet 3. The fixed block 604 and the connecting block 605 respectively drive the moving block 603 to move away from the control cabinet 3 until it moves to the appropriate position and then continues to put in the metal parts.

[0034] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

Claims

1. An ultrasonic cleaning device for metal workpieces, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a distribution box (2) and an ultrasonic cleaning bucket (4); the upper surface of the distribution box (2) is fixedly connected to a control cabinet (3); a cleaning frame (7) is provided inside the ultrasonic cleaning bucket (4); an adjustment structure (5) is provided on a side of the ultrasonic cleaning bucket (4) away from the distribution box (2); the adjustment structure (5) comprises a fixed plate (501); the fixed plate (501) is fixedly connected to the ultrasonic cleaning bucket (4); an auxiliary groove (502) is provided inside the fixed plate (501); an adjustment block (512) is slidably connected inside the auxiliary groove (502); a fixed rod (503) is fixedly connected to the lower surface of the fixed plate (501); the fixed rod (503) is on a side away from the fixed plate (501); A motor (504) is fixedly connected, and an output end of the motor (504) is fixedly connected to a screw rod (505), the screw rod (505) is rotatably connected to the fixed plate (501), the screw rod (505) is threadedly connected to the adjustment block (512), the side of the adjustment block (512) away from the ultrasonic cleaning barrel (4) is fixedly connected to a limit plate (506), the side of the limit plate (506) close to the cleaning frame (7) is fixedly connected to a connecting plate (507), the inner wall of the connecting plate (507) is fixedly connected to a fixed column (510), the arc surface of the fixed column (510) is rotatably connected to a rotating block (509), the lower surface of the rotating block (509) is fixedly connected to a connecting plate (508), and the connecting plate (508) is fixedly connected to the cleaning frame (7).

2. The ultrasonic cleaning device for metal workpieces according to claim 1, characterized in that: Two limiting rods (513) are fixedly connected to the inner wall of the auxiliary groove (502), and the two limiting rods (513) are slidably connected to the adjustment block (512).

3. The ultrasonic cleaning device for metal workpieces according to claim 1, characterized in that: A stopper (511) is fixedly connected to one side of the connecting plate (507), and the cross section of the stopper (511) is rectangular.

4. The ultrasonic cleaning device for metal workpieces according to claim 1, characterized in that: The connecting plate (508) is a stainless steel plate.

5. The ultrasonic cleaning device for metal workpieces according to claim 1, characterized in that: The upper surface of the ultrasonic cleaning barrel (4) is provided with an auxiliary structure (6), the auxiliary structure (6) comprising two positioning plates (601), the two positioning plates (601) being fixedly connected to the ultrasonic cleaning barrel (4), the inner wall of the positioning plate (601) being provided with a connecting groove (602), the inner wall of the connecting groove (602) being slidably connected to a moving block (603), and the upper surfaces of the two moving blocks (603) being fixedly connected to fixed blocks (604) respectively. and a connecting block (605); a rotating rod (612) is fixedly connected to one side of the fixing block (604) and the connecting block (605) close to each other; a positioning column (610) and an auxiliary plate (611) are rotatably connected to the arc surface of the rotating rod (612); a plurality of insertion holes (609) are opened on the inner wall of the positioning column (610); an insertion rod (608) is slidably connected to the inner wall of the fixing block (604); and the insertion rod (608) slides with the insertion hole (609).

6. The ultrasonic cleaning device for metal workpieces according to claim 5, characterized in that: One end of the insertion rod (608) away from the positioning column (610) is fixedly connected to a pull ring (606), and the cross section of the pull ring (606) is circular.

7. The ultrasonic cleaning device for metal workpieces according to claim 5, characterized in that: The arc surface of the insertion rod (608) is covered with a spring (607), and the two ends of the spring (607) are fixedly connected to the insertion rod (608) and the fixed block (604) respectively.