Self-sealed cavity cleaning machine and cleaning method thereof

Abstract

The present invention discloses a self-sealing chamber cleaning machine and a cleaning method thereof, including a box frame and a cover plate, a sealing member is provided on the front of the box frame, the sealing member and the cover plate cooperate with each other to define a relatively sealed sealing chamber on the box frame, a cleaning assembly for cleaning the workpiece is provided in the sealed chamber; the sealing member at least includes an upper sealing plate and a lower sealing plate arranged up and down, one end of the upper sealing plate and the lower sealing plate are respectively pivotally arranged on the box frame; a clamping assembly for clamping the workpiece is also provided on the lower sealing plate, and the clamping assembly can be driven to rotate by a pushing assembly integrated on the lower sealing plate. The beneficial effects of the present invention are mainly reflected in: the sealing member adopts a split structure, the upper sealing plate and the lower sealing plate are respectively driven by corresponding driving sources, which can reduce the overall specifications of the driving source and reduce costs; more importantly, a clamping assembly is integrated on the lower sealing plate of the present invention, which is used to drive the workpiece to rotate, so that one object can be used for multiple purposes and can also reduce costs.

Description

Technical Field

[0001] The present invention relates to the field of cleaning machines, and in particular to a self-sealed cavity cleaning machine and a cleaning method thereof. Background Art

[0002] Workpieces will inevitably be contaminated during the production or assembly process. To ensure the normal use of the workpieces, they need to be cleaned after processing or assembly. Traditional cleaning methods mostly use manual high-pressure water guns, but this method requires manual participation and the cleaning effect cannot be guaranteed, especially for the inner holes or dead corners of certain workpieces; and this cleaning method cannot meet the needs of large-scale, fast-paced modern industrial production.

[0003] The cleaning machine is used to flush out pollutants generated or invaded during the manufacturing, assembly, use and maintenance of the filter hydraulic system. The use of a cleaning machine can greatly improve the cleaning efficiency and cleaning effect. For example, the high-efficiency clean step-by-step cleaning machine proposed by the applicant in the patent with authorization announcement number CN208033152U realizes assembly line cleaning through automated operation.

[0004] In some cleaning scenarios, a strict sealing environment is required. For example, the authorization announcement number CN 213205423 U discloses a sealing device for closing the cavity cover of a hydrocarbon cleaning machine. The cleaning machine includes a cavity, a door frame, a lifting drive, a guide assembly, and a switch door. The cavity is provided with an opening that matches the switch door. The door frame is connected to the switch door through a tightening component. The lifting drive is connected to the door frame in a driving manner. The door frame and the switch door are slidably arranged on the guide assembly. The lifting drive drives the switch door connected to the door frame to be sealed and connected to the cavity. The cleaning machine seals the cavity by directly controlling the switch door to move up and down. However, the layout occupies a large space, is unreasonable, and requires manual or mechanical hands to transport the workpiece into the cavity and position the workpiece in the cavity. It cannot be flexibly integrated with the cleaning line. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a self-sealing cavity cleaning machine and a cleaning method thereof.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A self-sealed chamber cleaning machine comprises a box frame and cover plates fixed on five surfaces thereof, a sealing member is provided on the front side of the box frame, the sealing member and the cover plate cooperate with each other to define a relatively sealed sealing chamber on the box frame, a cleaning assembly for cleaning a workpiece is provided in the sealed chamber; the sealing member comprises at least an upper sealing plate and a lower sealing plate which are arranged up and down, one end of the upper sealing plate and the lower sealing plate are respectively pivotally arranged on the box frame, when the upper sealing plate and the lower sealing plate are in a vertical state, the upper sealing plate and the lower sealing plate are coplanar and seamlessly connected; a clamping assembly for clamping the workpiece is also provided on the lower sealing plate, and the clamping assembly can be driven to rotate by a pushing assembly integrated on the lower sealing plate.

[0008] Preferably, a support frame is fixedly provided on the box frame, a rotating shaft is pivotally provided on the support frame, a transmission frame is pivotally provided on the rotating shaft, a lower sealing plate is fixedly provided on one side of the transmission frame, a telescopic cylinder is fixedly provided on the support frame, a support block is fixedly provided on the cylinder shaft of the telescopic cylinder, a connecting hole is opened on the support block, and a connecting pin is fixedly provided on the transmission frame, and the connecting pin is placed in the connecting hole.

[0009] Preferably, a driving shaft is pivotally provided on the box frame, the upper sealing plate is fixedly provided on the driving shaft, a driving arm is pivotally provided on one end of the driving shaft, a driving cylinder is also fixedly provided on the box frame, a connector is provided on the cylinder shaft of the driving cylinder, and the connector is pivotally connected to the other end of the driving arm.

[0010] Preferably, the pushing assembly at least includes a positioning hole opened on the lower sealing plate, a rotating bearing is built into the positioning hole, a rotating seat is fixedly provided on the inner ring of the rotating bearing, the clamping assembly is provided on the rotating seat, a driving gear is pivotally provided on the rotating seat, the driving gear is driven by a driving motor fixed on the rotating seat, and a gear ring is also provided in the positioning hole, and the gear ring is meshed with the driving gear.

[0011] Preferably, the clamping assembly at least includes a clamping plate fixed on the rotating seat, clamping blocks are fixed on both sides of the clamping plate, a connecting arm is fixed on the clamping block, a latch is fixed on one end of the connecting arm, a pressing head is pivotally provided on the latch, one end of the pressing head is pivotally connected to the cylinder shaft of the clamping cylinder fixed in the clamping block, and the other end can be pressed on the workpiece.

[0012] Preferably, the cleaning assembly at least comprises a support shaft pivotally arranged on the cover plate, fixed blocks are fixedly arranged on both sides of the support shaft, an upper water spray pipe quickly connected thereto is arranged on the fixed block, and a group of upper nozzles is arranged on the upper water spray pipe.

[0013] Preferably, a servo motor is fixedly provided on the cover plate, and the motor shaft of the servo motor is connected to the reduction plate through a reducer pivot. A transmission arm is pivotally provided on the reduction plate, and the pivot point between the transmission arm and the reduction plate is not on the central axis of the reduction plate. A driven arm is pivotally provided at the other end of the transmission arm, and the other end of the driven arm is fixed on the support shaft.

[0014] Preferably, a lower water spray pipe is fixedly provided on the cover plate, and the lower water spray pipe is located below the upper water spray pipe, and a group of lower nozzles are opened on the lower water spray pipe.

[0015] Preferably, the bottom surface of the cover plate is funnel-shaped and has a drainage port thereon.

[0016] A cleaning method for a self-sealing cavity cleaning machine comprises the following steps:

[0017] S1, pushing the workpiece onto the clamping plate, starting the clamping cylinder, and driving the pressing head to swing around the latch until the end side of the pressing head presses against the workpiece;

[0018] S2, the telescopic cylinder is started, and the connecting pin and the transmission frame are pulled to rotate around the rotating shaft through the support block until the lower sealing plate is in a vertical state; at the same time, the driving cylinder is started, and the driving shaft is pulled to rotate through the connector and the driving arm until the upper sealing plate is in a vertical state. At this time, the upper sealing plate and the lower sealing plate are coplanar and seamlessly connected;

[0019] S3, turning on the switches on the upper water spray pipe and the lower water spray pipe, and spraying and cleaning the workpiece through the upper nozzle on the upper water spray pipe and the lower nozzle on the lower water spray pipe;

[0020] S4, during the cleaning process of step S3, the servo motor is started, and drives the support shaft to rotate through the reduction plate, the transmission arm and the driven arm in sequence, and the rotation of the support shaft drives the upper water spray pipe and the upper nozzle to rotate;

[0021] S5. During the cleaning process in step S3, the driving motor is started to drive the driving gear to rotate in the gear ring, thereby causing the rotating seat to rotate. The rotation of the rotating seat can drive the clamping plate and the workpiece to rotate.

[0022] The beneficial effects of the present invention are mainly reflected in:

[0023] The seal adopts a split structure, which can reduce the occupied space compared with the integral structure in the prior art, making the structure more compact and the layout more reasonable; in addition, the upper sealing plate and the lower sealing plate are driven by corresponding driving sources respectively, which can reduce the overall specifications of the driving source and reduce the cost; more importantly, the lower sealing plate of the present invention is integrated with a clamping assembly for driving the workpiece to rotate, which can be used for multiple purposes and can also reduce the cost;

[0024] The lower sealing plate in a horizontal state can cooperate well with other conveying lines, meeting the design requirements of flexible production lines;

[0025] The structure for clamping the workpiece is simple and convenient, the operation is stable and reliable, and the work efficiency is greatly improved. At the same time, the structure clamps the workpiece on all sides to prevent the workpiece from shifting or moving during the movement process, ensuring the accuracy of the workpiece position and improving the cleanliness of subsequent cleaning;

[0026] The upper nozzle and the lower nozzle are placed up and down, and can clean different positions of the workpiece respectively, ensuring that there are no dead angles during the cleaning process, improving the cleanliness and work efficiency of the cleaning. In addition, the upper water spray pipe and the upper nozzle can adjust the cleaning position of the workpiece under the drive of the servo motor. This method is simple and convenient, and can be applied to workpieces of various specifications, greatly improving applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0028] Figure 1 : A three-dimensional diagram of a preferred embodiment of the present invention, which is in a workpiece loading state;

[0029] Figure 2 : A three-dimensional diagram of a preferred embodiment of the present invention, in which the workpiece is hidden;

[0030] Figure 3 : A three-dimensional view of a preferred embodiment of the present invention, in which the upper sealing plate and the lower sealing plate are in a vertical state;

[0031] Figure 4 : A three-dimensional diagram of a preferred embodiment of the present invention in a second direction;

[0032] Figure 5 : A three-dimensional view of the preferred embodiment of the present invention from the third direction, in which part of the structure on the lower sealing plate is removed;

[0033] Figure 6 : A three-dimensional diagram of the internal structure of a preferred embodiment of the present invention, in which the cover plate is removed;

[0034] Figure 7 : Figure 6 Enlarged view of part A. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0036] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0037] like Figures 1 to 7 The present invention discloses a self-sealed cavity cleaning machine, comprising a box frame 1 and a cover plate 2 fixed on five surfaces thereof, a sealing member is provided on the front of the box frame 1, and the sealing member and the cover plate 2 cooperate with each other to define a relatively sealed sealed cavity 21 on the box frame 1, and the workpiece 100 can be placed in the sealed cavity 21 and cleaned by a cleaning component 3.

[0038] Specifically, the sealing member at least includes an upper sealing plate 4 and a lower sealing plate 5 which are arranged in an upper and lower position, and one end of the upper sealing plate 4 and the lower sealing plate 5 are pivotally arranged on the box frame 1. In the initial state, the lower sealing plate 5 is in a horizontal state, which is used for automatic loading of the workpiece to be cleaned. When the upper sealing plate 4 and the lower sealing plate 5 are in a vertical state, and the upper sealing plate 4 and the lower sealing plate 5 are coplanar and seamlessly connected, a preferred method is to form a completely sealed sealing cavity 21. In the present invention, a partial structure of the lower sealing plate 5 covers the upper sealing plate 4, such as a rubber body located at the end of the lower sealing plate 5.

[0039] The sealing member used to form the sealed cleaning chamber in the present invention adopts a split structure, which can reduce the occupied space compared with the integral structure in the prior art, making the structure more compact and the layout more reasonable. In addition, the upper sealing plate and the lower sealing plate are driven by corresponding driving sources respectively, which can reduce the overall specifications of the driving source and reduce the cost.

[0040] Combination Figure 3 and Figure 4 As shown, in this preferred embodiment, a support frame 51 is fixedly provided on the box frame 1, a rotating shaft 52 is pivotally provided on the support frame 51, a transmission frame 53 is pivotally provided on the rotating shaft 52, a lower sealing plate 5 is fixedly provided on one side of the transmission frame 53, a telescopic cylinder 54 is fixedly provided on the support frame 51, a support block 55 is fixedly provided on the cylinder shaft of the telescopic cylinder 54, a connecting hole is provided on the support block 55, a connecting pin 57 is fixedly provided on the transmission frame 53, and the connecting pin 57 is placed in the connecting hole. When the telescopic cylinder 54 is started, the cylinder shaft of the telescopic cylinder 54 retracts, pulling the transmission frame 53 to rotate around the rotating shaft 52, thereby turning the lower sealing plate 5 over until it is in a vertical state.

[0041] Combination Figure 6 and Figure 7As shown, a driving shaft 41 is pivotally provided on the box frame 1, the upper sealing plate 4 is fixedly provided on the driving shaft 41, a driving arm 42 is pivotally provided on one end of the driving shaft 41, and a driving cylinder 43 is also fixedly provided on the box frame 1, a connector 44 is provided on the cylinder shaft of the driving cylinder 43, and the connector 44 is pivotally connected to the other end of the driving arm 42. When the driving cylinder 43 is started, the cylinder shaft of the driving cylinder 43 retracts, and the driving shaft 41 and the upper sealing plate 4 are pulled upside down through the connector 44 and the driving arm 42 in turn until the upper sealing plate 4 is in a vertical state.

[0042] The lower sealing plate 5 is also provided with a clamping assembly 6 for clamping the workpiece 100. Figure 2 As shown, the clamping assembly 6 at least includes a clamping plate 61 fixed on the rotating seat 73, clamping blocks 62 are fixed on both sides of the clamping plate 61, and a connecting arm 63 is fixed on the clamping block 62. A latch 64 is fixed on one end of the connecting arm 63, and a pressing head 65 is pivotally provided on the latch 64. One end of the pressing head 65 is pivotally connected to the cylinder shaft of the clamping cylinder 66 fixed in the clamping block 62, and the other end can be pressed on the workpiece 100. When the clamping cylinder 66 is started, its cylinder shaft drives the pressing head 65 to swing around the latch 64 until the end side of the pressing head 65 presses on the workpiece 100, so that the workpiece 100 can be accurately positioned.

[0043] The structure for clamping the workpiece 100 in this preferred embodiment is simple and convenient, and can greatly improve work efficiency through streamlined operation. At the same time, the structure clamps the workpiece 100 on all sides to prevent the workpiece 100 from shifting or moving during the movement process, ensuring the accuracy of the position of the workpiece 100 and improving the cleanliness of subsequent cleaning.

[0044] The clamping assembly 6 can be driven to rotate by the pushing assembly 7 integrated on the lower sealing plate 5. Figure 5 As shown, the pushing assembly 7 at least includes a positioning hole 71 opened on the lower sealing plate 5, and a rotating bearing 72 is built in the positioning hole 71. The inner ring of the rotating bearing 72 is fixedly provided with a rotating seat 73, and the clamping assembly 6 is provided on the rotating seat 73. A driving gear 74 is pivotally provided on the rotating seat 73, and the driving gear 74 is driven by a driving motor 75 fixedly provided on the rotating seat 73. A gear ring 76 is also provided in the positioning hole 71, and the gear ring 76 is meshed with the driving gear 74. When the driving motor 75 is started, the driving gear 74 is driven to rotate in the gear ring 76, so that the rotating seat 73 rotates as a whole, and the rotation of the rotating seat 73 can drive the clamping plate 61 and the workpiece 100 to rotate.

[0045] In this preferred embodiment, the gear and the gear ring cooperate with each other for transmission, which utilizes the characteristics of high power transmission efficiency and stable and reliable transmission to maximize the work efficiency. At the same time, the structure is compact, the layout is reasonable, the occupied space is reduced, and it has a wide applicability.

[0046] The cleaning assembly 3 at least comprises a support shaft 31 pivotally mounted on the cover plate 2, fixed blocks 32 are fixedly mounted on both sides of the support shaft 31, an upper water spray pipe 33 is mounted on the fixed block 32 and a group of upper nozzles are mounted on the upper water spray pipe 33. Figure 6 As shown, a servo motor 34 is fixedly arranged on the cover plate 2, and the motor shaft of the servo motor 34 is pivotally connected to the speed reduction plate 35 through a reducer, and a transmission arm 36 is pivotally arranged on the speed reduction plate 35, and the pivot point between the transmission arm 36 and the speed reduction plate 35 is not on the central axis of the speed reduction plate 35, and a driven arm 37 is pivotally arranged on the other end of the transmission arm 36, and the other end of the driven arm 37 is fixedly arranged on the support shaft 31. A lower water spray pipe 38 is also fixedly arranged on the cover plate 2, and the lower water spray pipe 38 is located below the upper water spray pipe 33, and a group of lower nozzles are opened on the lower water spray pipe 38. The upper nozzle and the lower nozzle are arranged up and down, and different positions of the workpiece 100 can be cleaned respectively, ensuring that there are no dead angles during the cleaning process, and improving the cleanliness and work efficiency of the cleaning.

[0047] In addition, the upper water spray pipe 33 and the upper nozzle can adjust the cleaning position of the workpiece 100 under the drive of the servo motor 34. This method is simple and convenient and can be applied to workpieces of various specifications, greatly improving applicability.

[0048] In the present invention, the bottom surface of the cover plate 2 is preferably funnel-shaped, and is provided with a drain port 22. The funnel-shaped design of the cover plate 2 can avoid the deposition of the cleaning liquid to the greatest extent and ensure the cleanliness.

[0049] The working process of the present invention is briefly described below:

[0050] S1, push the workpiece 100 onto the clamping plate 61, start the clamping cylinder 66, and drive the pressing head 65 to swing around the latch 64 until the end side of the pressing head 65 presses on the workpiece 100;

[0051] S2, the telescopic cylinder 54 is started, and the connecting pin 57 and the transmission frame 53 are pulled to rotate around the rotating shaft 52 through the support block 55 until the lower sealing plate 5 is in a vertical state; at the same time, the driving cylinder 43 is started, and the driving shaft 41 is pulled to rotate through the connector 44 and the driving arm 42 until the upper sealing plate 4 is in a vertical state. At this time, the upper sealing plate 4 and the lower sealing plate 5 are coplanar and seamlessly connected.

[0052] S3, turning on the switches on the upper water spray pipe 33 and the lower water spray pipe 38, and spraying and cleaning the workpiece 100 through the upper nozzle on the upper water spray pipe 33 and the lower nozzle on the lower water spray pipe 38;

[0053] S4, during the cleaning process of step S3, the servo motor 34 is started, and drives the support shaft 31 to rotate through the speed reduction plate 35, the transmission arm 36 and the driven arm 37 in sequence, and the rotation of the support shaft 31 drives the upper water spray pipe 33 and the upper nozzle to rotate;

[0054] S5. During the cleaning process in step S3, the driving motor 75 is started to drive the driving gear 74 to rotate in the gear ring 76, thereby rotating the rotating seat 73. The rotation of the rotating seat 73 can drive the clamping plate 61 and the workpiece 100 to rotate.

[0055] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0056] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-sealed chamber cleaning machine, comprising a box frame (1) and cover plates (2) fixedly mounted on five sides thereof, characterized in that: A sealing member is provided on the front of the box frame (1), and the sealing member cooperates with the cover plate (2) to define a relatively sealed sealing cavity (21) on the box frame (1), and a cleaning component (3) for cleaning the workpiece (100) is provided in the sealing cavity (21); the sealing member comprises at least an upper sealing plate (4) and a lower sealing plate (5) arranged in an upper and lower manner, and one end of the upper sealing plate (4) and the lower sealing plate (5) are respectively pivotally arranged on the box frame (1), and when the upper sealing plate (4) and the lower sealing plate (5) are in a vertical state, the upper sealing plate (4) and the lower sealing plate (5) are coplanar and seamlessly connected; the lower sealing plate (5) is also provided with a clamping component (6) for clamping the workpiece (100), and the clamping component (6) can be driven to rotate by a pushing component (7) integrated on the lower sealing plate (5); A support frame (51) is fixedly provided on the box frame (1), a rotating shaft (52) is pivotally provided on the support frame (51), a transmission frame (53) is pivotally provided on the rotating shaft (52), a lower sealing plate (5) is fixedly provided on one side of the transmission frame (53), a telescopic cylinder (54) is fixedly provided on the support frame (51), a support block (55) is fixedly provided on the cylinder shaft of the telescopic cylinder (54), a connecting hole is opened on the support block (55), and a connecting pin (57) is fixedly provided on the transmission frame (53), and the connecting pin (57) is placed in the connecting hole; A driving shaft (41) is pivotally provided on the box frame (1), the upper sealing plate (4) is fixedly provided on the driving shaft (41), a driving arm (42) is pivotally provided on one end of the driving shaft (41), a driving cylinder (43) is also fixedly provided on the box frame (1), a connector (44) is provided on the cylinder shaft of the driving cylinder (43), and the connector (44) is pivotally connected to the other end of the driving arm (42); The pushing assembly (7) at least comprises a positioning hole (71) formed on the lower sealing plate (5), a rotating bearing (72) being built in the positioning hole (71), a rotating seat (73) being fixedly provided on the inner ring of the rotating bearing (72), the clamping assembly (6) being provided on the rotating seat (73), a driving gear (74) being pivotally provided on the rotating seat (73), the driving gear (74) being driven by a driving motor (75) fixedly provided on the rotating seat (73), and a gear ring (76) being meshed with the driving gear (74); The clamping assembly (6) at least comprises a clamping plate (61) fixedly mounted on the rotating seat (73), clamping blocks (62) fixedly mounted on both sides of the clamping plate (61), a connecting arm (63) fixedly mounted on the clamping block (62), a latch (64) fixedly mounted on one end of the connecting arm (63), a pressing head (65) pivotally mounted on the latch (64), one end of the pressing head (65) being pivotally connected to a cylinder shaft of a clamping cylinder (66) fixedly mounted in the clamping block (62), and the other end of the pressing head (65) being capable of pressing against the workpiece (100); The cleaning assembly (3) comprises at least a support shaft (31) pivotally arranged on the cover plate (2), fixed blocks (32) being fixedly arranged on both sides of the support shaft (31), an upper water spray pipe (33) being quickly connected thereto being arranged on the fixed block (32), and a group of upper nozzles being arranged on the upper water spray pipe (33); A servo motor (34) is fixedly provided on the cover plate (2); a motor shaft of the servo motor (34) is connected to a reduction plate (35) via a reducer pivot; a transmission arm (36) is pivotally provided on the reduction plate (35); a pivot point between the transmission arm (36) and the reduction plate (35) is not on the central axis of the reduction plate (35); a driven arm (37) is pivotally provided at the other end of the transmission arm (36); and the other end of the driven arm (37) is fixedly provided on the support shaft (31); A lower water spray pipe (38) is also fixedly provided on the cover plate (2), the lower water spray pipe (38) is located below the upper water spray pipe (33), and a group of lower nozzles are provided on the lower water spray pipe (38).

2. The self-sealing cavity cleaning machine according to claim 1, characterized in that: The bottom surface of the cover plate (2) is funnel-shaped and is provided with a drainage port (22).

3. The cleaning method of the self-sealing cavity cleaning machine according to any one of claims 1 to 2, characterized in that: The steps include: S1, pushing the workpiece (100) onto the clamping plate (61), starting the clamping cylinder (66), and driving the pressing head (65) to swing around the latch (64) until the end side of the pressing head (65) presses against the workpiece (100); S2, the telescopic cylinder (54) is started, and the connecting pin (57) and the transmission frame (53) are pulled through the support block (55) to rotate around the rotation axis (52) until the lower sealing plate (5) is in a vertical state; at the same time, the driving cylinder (43) is started, and the driving shaft (41) is pulled through the connector (44) and the driving arm (42) to rotate until the upper sealing plate (4) is in a vertical state. At this time, the upper sealing plate (4) and the lower sealing plate (5) are coplanar and seamlessly connected. S3, turning on the switches on the upper water spray pipe (33) and the lower water spray pipe (38), and spraying and cleaning the workpiece (100) through the upper nozzle on the upper water spray pipe (33) and the lower nozzle on the lower water spray pipe (38); S4, during the cleaning process of step S3, the servo motor (34) is started, and drives the support shaft (31) to rotate through the reduction plate (35), the transmission arm (36) and the driven arm (37) in sequence, and the rotation of the support shaft (31) drives the upper water spray pipe (33) and the upper nozzle to rotate; S5. During the cleaning process in step S3, the driving motor (75) is started to drive the driving gear (74) to rotate in the gear ring (76), thereby causing the rotating seat (73) to rotate. The rotation of the rotating seat (73) can drive the clamping plate (61) and the workpiece (100) to rotate.

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