CN118305595A - Combined machining equipment for precisely machining special-shaped valve body - Google Patents

Abstract

The present invention discloses a combined processing equipment for precision processing of a special-shaped valve body, which relates to the field of processing equipment, including a processing box, a three-axis mobile platform is arranged in the processing box, a milling cutter is arranged on the three-axis mobile platform, a sandblasting head is also arranged on the three-axis mobile platform, a filter plate is arranged in the processing box, the filter plate is arranged in an inclined manner, and a cleaning component is arranged on the filter plate; the cleaning component includes two groups of moving units, the two groups of moving units can move below the filter plate, and the moving directions of the two groups of moving units are opposite, and the moving units include an extrusion block and a spray bar. The extrusion bar is moved periodically, the extrusion bar drives the filter plate to move periodically, the filter plate vibrates to move the debris on the filter plate, and the debris is prevented from accumulating on the filter plate. At the same time, the spray bar moves below the filter plate and sprays a cleaning liquid on the filter plate, flushes out the debris in the holes of the filter plate, and prevents the debris from clogging the holes of the filter plate, thereby ensuring the filtering efficiency of the filter plate and improving the filtering effect of the filter plate.

Description

A combined processing equipment for precision processing of special-shaped valve bodies

Technical Field

The invention relates to the field of processing equipment, and in particular to a combined processing equipment for precision processing of a special-shaped valve body.

Background technique

The valve body is the core component of the valve, usually made of metal or non-metallic materials, to achieve control of fluid flow. Its main functions include cutting off, regulating, guiding, preventing backflow, etc. The design of the valve body needs to consider factors such as working pressure, medium properties, temperature range, flow requirements, etc.

Precision machining of valve bodies is a key step to ensure valve performance and reliability. This involves a series of precise machining processes aimed at obtaining precise geometric dimensions, surface finish, and necessary mechanical properties. The following are some common steps and techniques for precision machining of valve bodies: Casting or forging: The preliminary shape of the valve body is usually obtained by casting or forging. Casting is suitable for valve bodies with complex shapes, while forging is suitable for applications that require higher strength and toughness; Rough machining: Use a lathe, milling machine or other machine tools to perform preliminary machining on the cast or forged blank to remove excess material and prepare for subsequent finishing; CNC machining: CNC machining is the main means to achieve high-precision machining. By programming and controlling the motion trajectory of the machine tool, complex contours and fine dimensional control can be achieved; precision grinding and polishing: in order to obtain better sealing performance and reduce fluid resistance, the sealing surface of the valve body usually needs to be ground and polished to achieve a very smooth surface; heat treatment: some valve body materials may require heat treatment, such as quenching and tempering, to improve their hardness and strength, or to eliminate processing stress; surface treatment: in order to improve corrosion resistance and wear resistance, the valve body surface may be plated, sprayed or surfacing; inspection and testing: the finished valve body needs to undergo a series of quality inspections, including dimensional measurement, hardness testing, surface defect inspection (such as color flaw detection and ultrasonic flaw detection), etc., to verify whether it meets the design specifications and quality standards.

Milling of valve bodies is a common precision machining method used to produce valve body parts with complex shapes and fine features. Milling cutters are used to remove a large area of material from the valve body blank to quickly approach the required geometry. High precision and surface finish are not pursued at this stage; after rough machining, fine machining is performed to achieve the designed size and shape accuracy. Fine-tooth milling cutters and smaller milling depths are used at this stage to improve the quality and accuracy of the machined surface.

After the valve body is milled by the milling machine, it needs to be sandblasted and polished to remove the burrs and surface of the valve body.

Sandblasting is a surface treatment technique that uses abrasive particles ejected at high speed to clean, strengthen or change the properties of the material surface. This process can remove surface impurities, old paint layers, rust or other attachments, and can also increase the surface roughness to improve adhesion before painting or provide a good foundation for other surface treatments such as coatings and bonding. Some sandblasting uses high-pressure liquid instead of high-pressure gas to wet sandblast the workpiece.

Chinese patent application CN117600846A discloses a compound milling machine, including: a processing table; an X-axis moving module, arranged on the processing table; a milling device, arranged on the X-axis moving module; and a grinding device, arranged on the X-axis moving module. During operation, the workpiece is placed on the worktable, and then the X-axis moving module is started to drive the milling device and the grinding device to move above the workpiece, and then the milling mechanism is started, and the milling mechanism will mill the workpiece, and then the grinding mechanism is started, and the grinding mechanism will grind the workpiece on the worktable. By setting the milling mechanism and the grinding mechanism, the workpiece can be milled and ground, so there is no need to use other equipment or devices for grinding, which simplifies the process and improves work efficiency.

Chinese patent application CN111975380A discloses an automatic milling and grinding automatic milling machine device, including a machine body, a fixed body, a fixed block one and a fixed block two are fixedly arranged on the upper side of the machine body, a rotating body is fixedly arranged on the upper side of the fixed body, a power chamber is arranged in the fixed body, a clamping chamber is arranged on the left side of the power chamber, a transmission chamber is arranged on the lower side of the rotating body, a clamping device for clamping and fixing the workpiece is arranged in the fixed body, the clamping device includes a main motor fixedly mounted on the left side wall of the power chamber, the main motor power is connected to a motor shaft, a power gear is fixed on the motor shaft, a rotating device for rotating and moving is arranged in the rotating body, and a milling device for milling and grinding the workpiece is arranged on the right side of the rotating body, which can quickly and automatically realize the plane milling processing of two workpieces, and perform fine processing on the processed plane, thereby ensuring the accuracy of the workpiece, reducing the time of workpiece processing, greatly improving the processing efficiency, and increasing production.

The above patents and prior art also have the following defects: after the valve body is milled by a milling machine, the valve body needs to be polished to smooth the burrs and surfaces on the valve body. Some equipment in the prior art uses sandblasting for polishing, which has a more complete polishing surface and a better polishing effect. However, when the valve body is subjected to a combined polishing and milling process, larger waste chips from milling will be mixed into the grinding sand, which will not only easily lead to clogging of the sandblasting head, but also poor grinding effect on the workpiece due to the low hardness of the larger waste chips. Mixed grinding sand will lead to a decrease in the grinding effect of the grinding sand. Conventional means use a filter to separate large impurities in the grinding sand. Milling waste chips are mostly long strips, which are easily blocked in the holes of the filter plate, resulting in a decrease in the filtering effect of the filter plate.

Therefore, the present application provides a combined processing equipment for precision processing of special-shaped valve bodies to meet the needs.

Summary of the invention

The purpose of the present application is to provide a combined processing equipment for precision processing of special-shaped valve bodies, in which the filter plate is arranged at an angle, and the extrusion block moves under the filter plate, and squeezes the wavy extrusion strips during the movement, so that the extrusion strips move periodically, and the extrusion strips drive the filter plate to move periodically. The filter plate vibrates to move the debris on the filter plate to prevent the debris from accumulating on the filter plate. At the same time, the spray bar moves under the filter plate and sprays cleaning liquid on the filter plate to flush out the debris in the holes of the filter plate to prevent the debris from clogging the holes of the filter plate, thereby ensuring the filtering efficiency of the filter plate and improving the filtering effect of the filter plate.

To achieve the above-mentioned purpose, the present application provides the following technical solutions: a combined processing equipment for precision processing of a special-shaped valve body, comprising a processing box, a three-axis mobile platform is arranged in the processing box, a milling cutter is arranged on the three-axis mobile platform, a sandblasting head is also arranged on the three-axis mobile platform, a filter plate is arranged in the processing box, the filter plate is arranged in an inclined manner, and a cleaning component is arranged on the filter plate;

The cleaning assembly includes two groups of moving units, which can move under the filter plate, and the moving directions of the two groups of moving units are opposite. The moving units include extrusion blocks and spray bars. The cleaning assembly also includes an extrusion bar, the top of the extrusion block is arranged in an arc shape, the extrusion bar is fixedly installed on the bottom of the filter plate, the bottom of the extrusion bar is wavy, the extrusion block is against the extrusion bar, the spray bar is located under the filter plate, and a plurality of spray holes are opened on the side of the spray bar close to the filter plate, and the spray holes can spray cleaning liquid to the filter plate.

Preferably, fixed side plates are fixedly installed on both sides of the filter plate, and the cleaning assembly also includes a fixed plate, a fixed rod, a limit plate, a movable block and a force storage spring, the fixed rod is fixedly installed on the fixed plate, the limit plate is fixedly installed on the end of the fixed rod away from the fixed plate, the movable block is sleeved on the fixed rod and slidably cooperates with the fixed rod, one end of the force storage spring is fixedly installed on the movable block, the other end of the force storage spring is fixedly installed on the limit plate, and the force storage spring is sleeved on the fixed rod.

Preferably, the cleaning assembly also includes a fixed frame and two movable screws, the movable screws are rotatably connected to the fixed frame, the two ends of the movable screw have opposite thread directions, the two groups of movable units are respectively arranged at the two ends of the movable screw, the fixed frame is fixedly installed on the fixed plate, the movable unit also includes two fixed blocks, the extrusion blocks and the extrusion strips are each provided with two, the two fixed blocks are respectively sleeved on the corresponding movable screws, the two fixed blocks are respectively fixedly installed on the corresponding extrusion blocks, and the spray strip is fixedly installed on the two extrusion blocks.

Preferably, a guide plate is fixedly installed in the processing box, the guide plate is inclined, a guide hole is opened on the guide plate, a guide frame is fixedly installed at the bottom of the guide plate corresponding to the position of the guide hole, a splash guard is fixedly installed on the fixed side plate, a sliding hole is opened on the splash guard, and the guide frame slides in the sliding hole.

Preferably, a water supply channel is provided in the spray bar, the spray hole is connected to the water supply channel, a water supply hose is fixedly mounted on the spray bar, and a water pump is fixedly mounted on the other end of the water supply hose.

Preferably, a driving motor is fixedly mounted on the fixed frame, and the driving motor is fixedly mounted on one of the movable screws. A driving pulley is fixedly mounted on one end of the two movable screws away from the driving motor, and a driving belt is connected to the two driving pulleys.

Preferably, the fixing frame is fixedly mounted on the inner wall of the processing box, a connecting plate is fixedly mounted on the inner wall of the fixing frame, a hose drag chain is arranged on the connecting plate, and the water supply hose is arranged in the hose drag chain.

Preferably, a connecting rod is fixedly mounted on the guide plate, a clamping plate is fixedly mounted on the connecting rod, and a clamping piece is fixedly mounted on the clamping plate.

Preferably, a collecting frame is provided in the processing box, and one end of the filter plate is located above the collecting frame.

Preferably, a water spray hose is also provided on one side of the milling cutter.

In summary, the technical effects and advantages of the present invention are as follows:

1. In the present invention, the filter plate is arranged obliquely, and the extrusion block moves under the filter plate. During the movement, the extrusion bar is squeezed to make the extrusion bar move periodically, and the extrusion bar drives the filter plate to move periodically. The filter plate vibrates to move the debris on the filter plate to prevent the debris from accumulating on the filter plate. At the same time, the spray bar moves under the filter plate and sprays the cleaning liquid on the filter plate to flush out the debris in the holes of the filter plate to prevent the debris from clogging the holes of the filter plate, thereby ensuring the filtering efficiency of the filter plate and improving the filtering effect of the filter plate.

2. In the present invention, by performing milling processing with a milling cutter in a processing box, and performing sandblasting and grinding in the processing box after milling processing, the burrs of the workpiece after milling can be ground off, so that the surface of the workpiece is more neat and the assembly size is more accurate. The filter plate can filter large pieces of debris on the filter plate, separate the large pieces of debris and grinding sand, so that the grinding sand can be easily recovered for recycling, reduce the use cost, and prevent large pieces of debris from entering the grinding sand, resulting in a decrease in grinding quality;

3. When the extrusion block pushes the extrusion bar to move upward, the extrusion bar drives the filter plate to move upward, and the filter plate drives the moving block to move upward. The moving block moves on the fixed rod and squeezes the force storage spring. As the extrusion block moves, the force storage spring drives the moving block to reset, and the moving block drives the filter plate to reset, so that the filter plate moves periodically, generates vibration force, and can provide support for the filter plate;

4. When the milling cutter mills the workpiece and the sandblasting head sprays sand on the workpiece, the milling impurities and sand enter the filter plate through the guide plate and the guide frame. When the spray bar sprays cleaning liquid on the filter plate, the splash plate blocks the cleaning liquid to prevent the cleaning liquid from splashing. When the filter plate moves, the splash plate can move on the guide frame.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

FIG1 is a schematic diagram of the structure of a processing box and a clamping member in the present invention;

FIG2 is a schematic diagram of the structure of a processing box in the present invention;

FIG3 is an enlarged view of part A in FIG2 of the present invention;

FIG4 is a schematic diagram of the structure of the guide plate, the guide frame and the splash plate in the present invention;

FIG5 is a schematic diagram of the structure of the filter plate, the fixed frame and the fixed side plate in the present invention;

FIG6 is a schematic diagram of the structure of the filter plate, the fixed side plate, the fixed frame and the collection frame in the present invention;

FIG7 is an enlarged view of portion B in FIG6 of the present invention;

FIG8 is a schematic diagram of the structure of the filter plate, the cleaning assembly and the fixed side plate in the present invention;

FIG9 is a schematic diagram of the structure of the filter plate, the fixing block, the extrusion block and the extrusion strip in the present invention;

FIG10 is a schematic diagram of the structure of the filter plate, spray bar and water supply hose in the present invention;

FIG. 11 is an enlarged view of portion C in FIG. 10 of the present invention.

In the figure: 1. processing box; 2. milling cutter; 3. sandblasting head; 4. filter plate; 5. cleaning assembly; 51. moving unit; 511. extrusion block; 512. spray bar; 513. fixed block; 52. extrusion bar; 53. fixed plate; 54. fixed rod; 55. limit plate; 56. moving block; 57. storage spring; 58. fixed frame; 59. moving screw; 6. fixed side plate; 7. guide plate; 8. guide frame; 9. splash plate; 10. water supply hose; 11. water pump; 12. drive motor; 13. connecting plate; 14. hose drag chain; 15. connecting rod; 16. clamping plate; 17. clamping piece; 18. collection frame; 19. water spray hose.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Embodiment: Referring to FIG. 1 to FIG. 11 , a combined processing equipment for precision processing of a special-shaped valve body includes a processing box 1, a three-axis mobile platform is arranged in the processing box 1, a milling cutter 2 is arranged on the three-axis mobile platform, a sandblasting head 3 is also arranged on the three-axis mobile platform, a filter plate 4 is arranged in an inclined manner, and a cleaning component 5 is arranged on the filter plate 4;

The cleaning assembly 5 includes two groups of moving units 51, which can move below the filter plate 4, and the moving directions of the two groups of moving units 51 are opposite. The moving units 51 include an extrusion block 511 and a spray bar 512. The cleaning assembly 5 also includes an extrusion bar 52. The top of the extrusion block 511 is arranged in an arc shape. The extrusion bar 52 is fixedly installed on the bottom of the filter plate 4. The bottom of the extrusion bar 52 is wavy. The extrusion block 511 is against the extrusion bar 52. The spray bar 512 is located below the filter plate 4. A plurality of spray holes are provided on the side of the spray bar 512 close to the filter plate 4, and the spray holes can spray cleaning liquid to the filter plate 4.

The workpiece is fixed in the processing box 1, and the workpiece is milled by the milling cutter 2. After the milling cutter 2 completes the milling of the workpiece, the sandblasting head 3 sprays out grinding sand to grind and remove burrs on the workpiece. In the process of milling and sandblasting, the milling debris and grinding sand fall onto the filter plate 4. The grinding sand falls below the filter plate 4 and is recovered. Large pieces of debris are filtered by the filter plate 4. The two groups of moving units 51 move below the filter plate 4, and the extrusion block 511 moves on the extrusion bar 52. The bottom of 2 is wavy, and the squeezing block 511 periodically pushes the squeezing bar 52 to move during the movement, and the squeezing bar 52 drives the filter plate 4 to move periodically, so that the debris on the filter plate 4 moves along the tilt direction of the filter plate 4 during the vibration process, so that the debris on the filter plate 4 is easier to be cleaned, and at the same time, the spray bar 512 moves under the filter plate 4, and the spray bar 512 sprays cleaning liquid to the filter plate 4 through the spray hole. The cleaning liquid flushes out the debris in the holes of the filter plate 4 through pressure to prevent the debris from being blocked in the holes of the filter plate 4.

By performing milling processing with the milling cutter 2 in the processing box 1 and performing sandblasting in the processing box 1 after the milling processing, the burrs of the workpiece after milling can be ground away, the surface of the workpiece is more neat, and the assembly size is more accurate. The filter plate 4 can filter large pieces of debris on the filter plate 4, separate the large pieces of debris from the grinding sand, make the grinding sand easy to recycle and reuse, reduce the cost of use, and prevent large pieces of debris from entering the grinding sand, resulting in a decrease in grinding quality.

The filter plate 4 is arranged to be inclined, and the extrusion block 511 moves under the filter plate 4. During the movement, the wavy extrusion strip 52 is squeezed to make the extrusion strip 52 move periodically. The extrusion strip 52 drives the filter plate 4 to move periodically. The filter plate 4 vibrates to move the debris on the filter plate 4 to prevent the debris from accumulating on the filter plate 4. At the same time, the spray strip 512 moves under the filter plate 4 and sprays cleaning liquid on the filter plate 4 to flush out the debris in the holes of the filter plate 4 to prevent the debris from clogging the holes of the filter plate 4, thereby ensuring the filtering efficiency of the filter plate 4 and improving the filtering effect of the filter plate 4.

Further, referring to Figures 1 to 11, fixed side plates 6 are fixedly installed on both sides of the filter plate 4, and the cleaning assembly 5 also includes a fixed plate 53, a fixed rod 54, a limit plate 55, a movable block 56 and a force storage spring 57. The fixed rod 54 is fixedly installed on the fixed plate 53, the limit plate 55 is fixedly installed on one end of the fixed rod 54 away from the fixed plate 53, the movable block 56 is sleeved on the fixed rod 54 and slidably cooperates with the fixed rod 54, one end of the force storage spring 57 is fixedly installed on the movable block 56, and the other end of the force storage spring 57 is fixedly installed on the limit plate 55, and the force storage spring 57 is sleeved on the fixed rod 54.

When the extrusion block 511 pushes the extrusion bar 52 to move upward, the extrusion bar 52 drives the filter plate 4 to move upward, and the filter plate 4 drives the moving block 56 to move upward. The moving block 56 moves on the fixed rod 54 and squeezes the force storage spring 57. As the extrusion block 511 moves, the force storage spring 57 drives the moving block 56 to reset, and the moving block 56 drives the filter plate 4 to reset, so that the filter plate 4 moves periodically, generates vibration force, and can provide support for the filter plate 4.

Further, referring to Figures 1 to 11, the cleaning assembly 5 also includes a fixed frame 58 and two movable screws 59. The movable screws 59 are rotatably connected to the fixed frame 58. The thread directions of the two ends of the movable screw 59 are opposite. The two groups of movable units 51 are respectively arranged at the two ends of the movable screw 59. The fixed frame 58 is fixedly installed on the fixed plate 53. The movable unit 51 also includes two fixed blocks 513. There are two extrusion blocks 511 and two extrusion strips 52. The two fixed blocks 513 are respectively mounted on the corresponding movable screws 59. The two fixed blocks 513 are respectively fixedly installed on the corresponding extrusion blocks 511. The spray strip 512 is fixedly installed on the two extrusion blocks 511.

When the moving screw 59 rotates, the fixed block 513 moves on the moving screw 59 , the fixed block 513 drives the extrusion block 511 to move, and the extrusion block 511 drives the spray bar 512 to move.

Further, referring to Figures 1 to 11, a guide plate 7 is fixedly installed in the processing box 1. The guide plate 7 is inclined and has guide holes. A guide frame 8 is fixedly installed at the bottom of the guide plate 7 corresponding to the position of the guide holes. A splash guard 9 is fixedly installed on the fixed side plate 6. The splash guard 9 has a sliding hole, and the guide frame 8 slides in the sliding hole.

When the milling cutter 2 mills the workpiece and the sandblasting head 3 sprays sand on the workpiece, the milled impurities and sand enter the filter plate 4 through the guide plate 7 and the guide frame 8. When the spray bar 512 sprays cleaning liquid on the filter plate 4, the splash plate 9 blocks the cleaning liquid to prevent it from splashing. When the filter plate 4 moves, the splash plate 9 can move on the guide frame 8.

Further, referring to FIGS. 1 to 11 , a water supply channel is provided in the spray bar 512 , the spray hole is connected to the water supply channel, a water supply hose 10 is fixedly mounted on the spray bar 512 , and a water pump 11 is fixedly mounted on the other end of the water supply hose 10 .

The water pump 11 is connected to the cleaning liquid. The water pump 11 passes the cleaning liquid into the water supply hose 10 and sprays it toward the filter plate 4 through the water supply channel and the spray hole.

Further, referring to Figures 1-11, a drive motor 12 is fixedly mounted on the fixed frame 58, and the drive motor 12 is fixedly mounted on one of the movable screws 59. A drive pulley is fixedly mounted on one end of the two movable screws 59 away from the drive motor 12, and a drive belt is connected to the two drive pulleys.

The driving motor 12 drives a movable screw 59 to rotate, and the movable screw 59 drives a transmission pulley to rotate. This transmission pulley drives another transmission pulley to rotate through a transmission belt, and the other transmission pulley drives the corresponding movable screw 59 to rotate, thereby driving the two movable screws 59 to rotate.

Further, referring to Figures 1-11, the fixing frame 58 is fixedly mounted on the inner wall of the processing box 1, a connecting plate 13 is fixedly mounted on the inner wall of the fixing frame 58, a hose drag chain 14 is arranged on the connecting plate 13, and the water supply hose 10 is arranged in the hose drag chain 14.

The water supply hose 10 is arranged in the hose drag chain 14, which can prevent the water supply hose 10 from being excessively bent and tangled, and ensure the passability of the water supply hose 10. The hose drag chain 14 is a prior art and will not be described in detail here.

Further, referring to FIGS. 1 to 11 , a connecting rod 15 is fixedly mounted on the guide plate 7 , a clamping plate 16 is fixedly mounted on the connecting rod 15 , and a clamping member 17 is fixedly mounted on the clamping plate 16 .

The workpiece is fixed on the clamping plate 16 by the clamping member 17 so as to process the workpiece. The clamping member 17 is a prior art and will not be described in detail here.

Further, referring to FIGS. 1 to 11 , a collecting frame 18 is provided in the processing box 1 , and one end of the filter plate 4 is located above the collecting frame 18 .

The waste debris on the filter plate 4 falls into the collection frame 18 through the inclined filter plate 4, and the waste debris can be collected for easy cleaning.

Furthermore, referring to FIGS. 1 to 11 , a water spray hose 19 is also provided on one side of the milling cutter 2 .

When the milling cutter 2 is milling the workpiece, the water spray hose 19 can spray lubricating liquid to the workpiece, thereby reducing the friction between the milling cutter 2 and the workpiece, cooling the milling cutter 2, and increasing the service life of the milling cutter 2.

The milling cutter 2 and the sandblasting head 3 are both prior art and will not be described in detail here.

Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A combined processing device for precision processing of a special-shaped valve body, comprising a processing box (1), characterized in that: a three-axis movable platform is arranged in the processing box (1), a milling cutter (2) is arranged on the three-axis movable platform, a sandblasting head (3) is also arranged on the three-axis movable platform, a filter plate (4) is arranged in the processing box (1), the filter plate (4) is arranged at an angle, and a cleaning component (5) is arranged on the filter plate (4); The cleaning component (5) comprises two groups of moving units (51), the two groups of moving units (51) are capable of moving below the filter plate (4), and the moving directions of the two groups of moving units (51) are opposite, the moving units (51) comprise an extrusion block (511) and a spray bar (512), the cleaning component (5) further comprises an extrusion bar (52), the top of the extrusion block (511) is arranged in an arc shape, the extrusion bar (52) is fixedly mounted on the bottom of the filter plate (4), the bottom of the extrusion bar (52) is wavy, the extrusion block (511) abuts against the extrusion bar (52), the spray bar (512) is located below the filter plate (4), and a plurality of spray holes are provided on a side of the spray bar (512) close to the filter plate (4), and the spray holes are capable of spraying cleaning liquid toward the filter plate (4); The cleaning assembly (5) further comprises a fixed frame (58) and two movable screws (59), wherein the movable screws (59) are rotatably connected to the fixed frame (58), and the threads at both ends of the movable screw (59) are in opposite directions. The two groups of movable units (51) are respectively arranged at the two ends of the movable screw (59), and the fixed frame (58) is fixedly mounted on the fixed plate (53). The movable unit (51) further comprises two fixed blocks (513), and two extrusion blocks (511) and two extrusion strips (52) are each provided. The two fixed blocks (513) are respectively sleeved on the corresponding movable screws (59), and the two fixed blocks (513) are respectively fixedly mounted on the corresponding extrusion blocks (511), and the spray strip (512) is fixedly mounted on the two extrusion blocks (511). 2. A combined processing equipment for precision processing of a special-shaped valve body according to claim 1, characterized in that: fixed side plates (6) are fixedly installed on both sides of the filter plate (4), and the cleaning assembly (5) further comprises a fixed plate (53), a fixed rod (54), a limit plate (55), a moving block (56) and a force storage spring (57), wherein the fixed rod (54) is fixedly installed on the fixed plate (53), the limit plate (55) is fixedly installed on one end of the fixed rod (54) away from the fixed plate (53), the moving block (56) is sleeved on the fixed rod (54) and slidably cooperates with the fixed rod (54), one end of the force storage spring (57) is fixedly installed on the moving block (56), the other end of the force storage spring (57) is fixedly installed on the limit plate (55), and the force storage spring (57) is sleeved on the fixed rod (54). 3. A combined processing equipment for precision processing of a special-shaped valve body according to claim 2, characterized in that: a guide plate (7) is fixedly installed in the processing box (1), the guide plate (7) is inclined, a guide hole is opened on the guide plate (7), a guide frame (8) is fixedly installed at the bottom of the guide plate (7) corresponding to the position of the guide hole, a splash plate (9) is fixedly installed on the fixed side plate (6), a sliding hole is opened on the splash plate (9), and the guide frame (8) is slidably fitted in the sliding hole. 4. A combined processing equipment for precision processing of a special-shaped valve body according to claim 1, characterized in that: a water supply channel is opened in the spray bar (512), the spray hole is connected to the water supply channel, a water supply hose (10) is fixedly installed on the spray bar (512), and a water pump (11) is fixedly installed on the other end of the water supply hose (10). 5. A combined processing equipment for precision processing of a special-shaped valve body according to claim 1, characterized in that: a driving motor (12) is fixedly mounted on the fixed frame (58), and the driving motor (12) is fixedly mounted on one of the movable screws (59), and a driving pulley is fixedly mounted on one end of the two movable screws (59) away from the driving motor (12), and a driving belt is connected to the two driving pulleys. 6. A combined processing equipment for precision processing of a special-shaped valve body according to claim 5, characterized in that: the fixed frame (58) is fixedly installed on the inner wall of the processing box (1), a connecting plate (13) is fixedly installed on the inner wall of the fixed frame (58), a hose drag chain (14) is arranged on the connecting plate (13), and the water supply hose (10) is arranged in the hose drag chain (14). 7. A combined processing equipment for precision processing of a special-shaped valve body according to claim 3, characterized in that a connecting rod (15) is fixedly mounted on the guide plate (7), a clamping plate (16) is fixedly mounted on the connecting rod (15), and a clamping member (17) is fixedly mounted on the clamping plate (16). 8. The combined processing equipment for precision processing of special-shaped valve bodies according to claim 1, characterized in that a collecting frame (18) is provided in the processing box (1), and one end of the filter plate (4) is located above the collecting frame (18). 9. The combined processing equipment for precision processing of special-shaped valve bodies according to claim 1, characterized in that a water spray hose (19) is also provided on one side of the milling cutter (2).