CNC machining device for accessories for screw compressor

Abstract

The invention relates to the technical field of compressor accessory machining, in particular to a screw compressor accessory CNC machining device which comprises a U-shaped frame with a downward opening. The device further comprises a limiting unit, the limiting unit is arranged on the horizontal section of the U-shaped frame, the limiting unit comprises a height adjusting component connected to the lower end of the horizontal section of the U-shaped frame, the height adjusting component is sleeved with a lifting plate, and a distance adjusting component is arranged at the position, close to the left side, of the lifting plate. According to the limiting unit, the shaft hole of the sealing end cover is used for directly conducting inner clamping and rotation limiting on the sealing end cover, limiting operation is simple and efficient, full contact clamping ensures that the sealing end cover is in a continuous clamping stable state, the sealing end cover is prevented from generating deviation or friction damage, and the service life of the sealing end cover is prolonged. And therefore, the polishing and positioning accuracy and the polishing effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of compressor parts processing, and in particular to a CNC processing device for screw compressor parts. Background Art

[0002] CNC machining machine tools are high-precision, high-efficiency CNC machining machine tools, which are often used to manufacture various mechanical parts, crafts and other precision parts, such as screw compressor components. CNC machining machine tools specifically include CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines and CNC machining grinders. The sealing surface machining of the screw compressor sealing end cover in the screw compressor assembly is generally carried out by CNC machining grinders.

[0003] When grinding the end face of the existing screw compressor sealing end cover, the sealing end cover is first placed on the workbench of the CNC machining grinder, and then the sealing end cover is externally clamped and fixed by a clamping device, and then the sealing surface of the sealing end cover is grinded by a grinding device. However, since the side wall of the sealing end cover is irregular in shape and the clamping head of the existing clamping device is usually rectangular, the clamping head and the side wall of the sealing end cover have a low fit, which not only affects the stability of the sealing end cover during grinding, and then affects the grinding effect, but also increases the probability of damage caused by friction between the sealing end cover and the clamping head due to deviation during grinding. In addition, the grinding device has only one support point during grinding, which further affects the stability of the sealing surface of the sealing end cover during the grinding process. Summary of the invention

[0004] Based on this, it is necessary to provide a CNC processing device for screw compressor accessories, which aims to solve the problems caused by the existing technology when grinding the end surface of the sealing end cover.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: a CNC processing device for screw compressor accessories, including a U-shaped frame with an opening facing downward, and a waist-shaped hole is opened on the horizontal section of the U-shaped frame.

[0006] It also includes a limiting unit, which is arranged on the horizontal section of the U-shaped frame. The limiting unit includes a height adjusting component connected to the lower end of the horizontal section of the U-shaped frame, a lifting plate is sleeved on the height adjusting component, a distance adjusting component is arranged on the left end of the lifting plate, a first supporting component is connected to the distance adjusting component, and a second supporting component is connected to the right side of the upper end of the lifting plate, the first supporting component and the second supporting component slide through the waist-shaped hole and the horizontal section of the U-shaped frame respectively; the U-shaped frame is provided with a lifting unit.

[0007] It also includes a grinding unit, which is connected to the lower end of the lifting unit. The grinding unit includes a driving motor installed on the lifting unit. A threaded rod is installed at the lower end of the output shaft of the driving motor, and a grinding component is connected to the threaded rod.

[0008] The grinding component includes a grinding disc installed at the lower end of the threaded rod, a plurality of sliding openings evenly distributed circumferentially are opened on the annular side wall of the grinding disc, a moving bar is slidably connected in the sliding opening, an adjustment component is connected to the threaded rod, and a clamping block is installed in the middle of the lower end of the grinding disc.

[0009] According to an embodiment of the present invention, the lifting unit includes two hydraulic push rods symmetrically installed on the left and right ends of the horizontal section of the U-shaped frame through a rectangular plate, and a strip plate is commonly installed on the upper ends of the two hydraulic push rods. A sliding through hole is opened on the strip plate, and two sliding rail rods are symmetrically installed in the sliding through hole front and back. An electric slider is commonly slidably penetrated on the two sliding rail rods, and the lower end of the electric slider is fixedly connected to the driving motor.

[0010] According to an embodiment of the present invention, the height adjustment component includes a positioning plate installed at the lower end of the horizontal section of the U-shaped frame, and two rectangular countersunk holes are symmetrically opened at the lower end of the positioning plate. A traction rod is slidably connected in the rectangular countersunk hole, and a connecting spring is installed between the end of the traction rod close to the middle of the positioning plate and the wall of the rectangular countersunk hole. A plurality of trapezoidal limit blocks evenly distributed from top to bottom are installed at the end of the traction rod away from the connecting spring, and the trapezoidal limit blocks slide through the side wall of the positioning plate.

[0011] According to an embodiment of the present invention, the distance adjusting component includes a movable through hole opened on the lifting plate, a movable plate is slidably connected in the movable through hole, a distance adjusting screw is rotatably connected to the left end of the movable plate, and the distance adjusting screw is threadedly connected to the left hole wall of the movable through hole.

[0012] According to an embodiment of the present invention, the first supporting component includes a cylindrical rod rotatably connected to the upper end of the movable plate, a spline groove is provided at the upper end of the cylindrical rod, a plurality of circumferentially evenly distributed slopes are provided at the upper end of the inner annular surface of the spline groove, and a cylindrical sleeve is rotatably connected to the outer surface of the cylindrical rod.

[0013] According to an embodiment of the present invention, the structure of the second supporting component is consistent with that of the first supporting component, and only the size is different. The cylindrical rod in the second supporting component is rotatably connected to the lifting plate.

[0014] According to an embodiment of the present invention, the adjustment assembly includes a threaded sleeve threadedly connected to the threaded rod, the lower end of the threaded sleeve is rotatably connected to a lifting ring, a plurality of circumferentially evenly distributed connecting rods are hinged on the outer ring surface of the lifting ring, and one end of the connecting rod away from the lifting ring is hinged to the corresponding moving bar.

[0015] According to an embodiment of the present invention, the clamping block is in a cylindrical structure, a plurality of limiting strips are installed on the outer ring of the clamping block, and a triangular protrusion is provided at the lower end of the limiting strip.

[0016] According to an embodiment of the present invention, a grinding strip is detachably mounted on the lower end of the movable strip, and a grinding plate is detachably mounted on the lower end of the grinding disc.

[0017] According to an embodiment of the present invention, support columns are installed at the four corners of the lower end of the lifting plate.

[0018] In summary, the present invention has the following beneficial effects:

[0019] 1. The limiting unit adopted in the present invention utilizes the axial hole of the sealing end cover to directly clamp the sealing end cover internally and limit its rotation. The limiting operation is simple and efficient. The full contact clamping implemented ensures that the sealing end cover is in a continuous clamping stable state, avoiding deviation or friction damage to the sealing end cover, thereby improving the accuracy of grinding positioning and the grinding effect.

[0020] 2. The grinding unit and the limiting unit used in the present invention cooperate to increase the supporting force points of the grinding unit when grinding the sealing surface of the sealing end cover, thereby improving the grinding stability of the grinding unit and ensuring the grinding effect.

[0021] 3. The grinding unit used in the present invention can adjust the grinding size, effectively realize the grinding of the sealing surface of the sealing end cover of different sizes, and improve the grinding efficiency of the sealing surface of the sealing end cover. At the same time, the limiting unit can also be adjusted within a certain range, so as to limit the sealing end covers of different sizes, thereby improving the flexibility of the processing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention 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 embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0024] Figure 2 A schematic diagram of the second viewing angle stereoscopic structure of the present invention is shown.

[0025] Figure 3 A front view of the present invention is shown.

[0026] Figure 4 A left side view of the present invention is shown.

[0027] Figure 5 Shows Figure 3 Sectional view along AA direction.

[0028] Figure 6 Shows Figure 4 Cross-sectional view along the BB axis.

[0029] Figure 7 The schematic diagram of the structure of the U-shaped frame and the limiting unit of the present invention is shown.

[0030] Figure 8 The schematic diagram of the structure of the grinding unit of the present invention is shown.

[0031] Fig. 9 The working schematic diagram of the present invention is shown.

[0032] Fig.10 A schematic structural diagram of a screw compressor sealing end cover is shown.

[0033] The above drawings include the following reference numerals: 1, U-shaped frame; 11, waist-shaped hole; 2, limiting unit; 21, height adjustment component; 211, positioning plate; 212, rectangular countersunk hole; 213, traction rod; 214, connecting spring; 215, trapezoidal limiting block; 22, lifting plate; 221, support column; 23, distance adjustment component; 231, moving through hole; 232, moving plate; 233, distance adjustment screw; 24, first support component; 241, cylindrical rod; 242, spline groove; 243, slope; 244, cylindrical sleeve; 2 5. Second supporting component; 3. Lifting unit; 31. Hydraulic push rod; 32. Strip plate; 33. Sliding through hole; 34. Slide rail rod; 35. Electric slider; 4. Grinding unit; 41. Driving motor; 42. Threaded rod; 43. Grinding component; 431. Grinding disc; 4311. Grinding plate; 432. Sliding opening; 433. Moving strip; 4331. Grinding strip; 434. Adjusting assembly; 4341. Threaded sleeve; 4342. Lifting ring; 4343. Connecting rod; 435. Clamping block; 4351. Limiting strip. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0035] See also Figure 1-Figure 4A CNC processing device for screw compressor accessories includes a U-shaped frame 1 with an opening facing downward, and a waist-shaped hole 11 is opened on the horizontal section of the U-shaped frame 1. During specific work, the U-shaped frame 1 is fixedly installed on a CNC workbench.

[0036] See also Figure 1 and Figure 2 The screw compressor accessories CNC processing device also includes a limit unit 2, which is arranged on the horizontal section of the U-shaped frame 1. The limit unit 2 includes a height adjustment component 21 connected to the lower end of the horizontal section of the U-shaped frame 1. A lifting plate 22 is sleeved on the height adjustment component 21. A distance adjustment component 23 is arranged on the left end of the lifting plate 22. A first support component 24 is connected to the distance adjustment component 23. A second support component 25 is connected to the right side of the upper end of the lifting plate 22. The first support component 24 and the second support component 25 slide through the waist-shaped hole 11 and the horizontal section of the U-shaped frame 1 respectively.

[0037] See also Figure 1 and Figure 2 Support columns 221 are installed at the four corners of the lower end of the lifting plate 22.

[0038] See also Figure 1 and Figure 5 The height adjustment component 21 includes a positioning plate 211 installed at the lower end of the horizontal section of the U-shaped frame 1. Two rectangular countersunk holes 212 are symmetrically opened at the lower end of the positioning plate 211. A traction rod 213 is slidably connected in the rectangular countersunk hole 212. A connecting spring 214 is installed between one end of the traction rod 213 close to the middle of the positioning plate 211 and the hole wall of the rectangular countersunk hole 212. A plurality of trapezoidal limit blocks 215 evenly distributed from top to bottom are installed at one end of the traction rod 213 away from the connecting spring 214. The trapezoidal limit blocks 215 slide through the side wall of the positioning plate 211.

[0039] During specific operation, according to the height of the sealing end cover of the screw compressor, the lifting plate 22 is pushed upward, the lifting plate 22 slides on the positioning plate 211 and pushes the inclined surfaces of the trapezoidal limit blocks 215 on both sides, the trapezoidal limit blocks 215 are subjected to force and push the traction rod 213, the traction rod 213 squeezes the connecting spring 214, thereby removing the obstacle to the sliding of the lifting plate 22, and the lifting plate 22 drives the distance adjusting component 23, the first supporting component 24 and the second supporting component 25 to move. After the length of the first supporting component 24 and the second supporting component 25 located above the horizontal section of the U-shaped frame 1 is consistent with the height of the sealing end cover, the movement of the lifting plate 22 is stopped, the two squeezed connecting springs 214 rebound and drive the traction rod 213 to reset, the traction rod 213 drives multiple trapezoidal limit blocks 215 to pass through the hole wall of the rectangular countersunk hole 212, and the two trapezoidal limit blocks 215 corresponding to the lower end of the lifting plate 22 support and limit the lifting plate 22.

[0040] See also Figure 1 , Figure 6 , Figure 7 and Fig. 9 The distance adjusting component 23 includes a moving through hole 231 opened on the lifting plate 22, a moving plate 232 is slidably connected in the moving through hole 231, a distance adjusting screw 233 is rotatably connected to the left end of the moving plate 232, and the distance adjusting screw 233 is threadedly connected to the left hole wall of the moving through hole 231.

[0041] See also Fig. 9 , Fig.10 During specific operation, according to the spacing between the two axial holes of the sealing end cover, the pitch-adjusting screw 233 is rotated, the pitch-adjusting screw 233 drives the moving plate 232 to move, and the moving plate 232 drives the first supporting component 24 to move, thereby changing the spacing between the first supporting component 24 and the second supporting component 25, so that the spacing between the two matches the spacing between the two axial holes of the sealing end cover.

[0042] See also Figure 1 , Figure 6 and Figure 7 The first supporting component 24 includes a cylindrical rod 241 rotatably connected to the upper end of the movable plate 232, a spline groove 242 is provided at the upper end of the cylindrical rod 241, a plurality of circumferentially evenly distributed slopes 243 are provided at the upper end of the inner annular surface of the spline groove 242, and a cylindrical sleeve 244 is rotatably connected to the outer surface of the cylindrical rod 241.

[0043] See also Figure 1 and Figure 5 The structure of the second supporting component 25 is consistent with that of the first supporting component 24 , and only the size is different. The cylindrical rod 241 in the second supporting component 25 is rotatably connected to the lifting plate 22 .

[0044] See also Fig. 9 During specific operation, after the height position and the distance between the first support component 24 and the second support component 25 are adjusted and limited, the sealing end cover to be polished is placed on the horizontal section of the U-shaped frame 1, and the first support component 24 and the second support component 25 are inserted into the two axial holes of the sealing end cover, thereby realizing the function of limiting the sealing end cover, so that there is no need to perform other limitations on the sealing end cover. The limiting operation is simple and efficient, which effectively improves the efficiency of polishing the sealing surface of the sealing end cover, and the cylindrical sleeve 244 fits with the axial hole of the sealing end cover, which improves the accuracy of polishing positioning.

[0045] See also Figure 1 The screw compressor accessories CNC processing device further includes a lifting unit 3 , and the lifting unit 3 is arranged on the U-shaped frame 1 .

[0046] See also Figure 1 , Figure 2 , Figure 5and Figure 6 The screw compressor accessories CNC processing device also includes a grinding unit 4, which is connected to the lower end of the lifting unit 3. The grinding unit 4 includes a driving motor 41 installed on the lifting unit 3. A threaded rod 42 is installed at the lower end of the output shaft of the driving motor 41, and a grinding component 43 is connected to the threaded rod 42.

[0047] See also Figure 1 , Figure 5 , Figure 6 and Figure 8 The grinding component 43 includes a grinding disc 431 installed at the lower end of the threaded rod 42. A plurality of sliding openings 432 evenly distributed in the circumferential direction are opened on the annular side wall of the grinding disc 431. A moving bar 433 is slidably connected in the sliding opening 432. An adjusting component 434 is connected to the threaded rod 42. A clamping block 435 is installed in the middle of the lower end of the grinding disc 431.

[0048] See also Figure 8 A grinding strip 4331 is detachably mounted on the lower end of the movable strip 433 , and a grinding plate 4311 is detachably mounted on the lower end of the grinding disc 431 .

[0049] During specific operation, initially the lifting unit 3 drives the grinding unit 4 to be in a position away from the U-shaped frame 1. According to the area of ​​the surface of the sealing end cover, the adjusting component 434 is rotated, and the adjusting component 434 drives the multiple moving bars 433 to move. The moving bars 433 slide in the sliding opening 432, so that the rotating grinding area of ​​the grinding disc 431 and the moving bars 433 exceeds the area of ​​the surface of the sealing end cover, ensuring that the surface of the sealing end cover can be fully polished, and then the multiple grinding bars 4331 are installed at the corresponding lower ends of the multiple moving bars 433, and then the grinding plate 4311 is installed at the lower end of the grinding disc 431.

[0050] See also Figure 1 , Figure 5 , Figure 6 and Figure 8 The adjustment component 434 includes a threaded sleeve 4341 threadedly connected to the threaded rod 42, the lower end of the threaded sleeve 4341 is rotatably connected to a lifting ring 4342, and a plurality of circumferentially evenly distributed connecting rods 4343 are hinged on the outer ring surface of the lifting ring 4342, and one end of the connecting rod 4343 away from the lifting ring 4342 is hinged to the corresponding moving bar 433.

[0051] During specific operation, when the grinding area is adjusted, the threaded sleeve 4341 is rotated, the threaded sleeve 4341 moves on the threaded rod 42 and drives the lifting ring 4342 to move, the lifting ring 4342 drives multiple connecting rods 4343 to move, and the multiple connecting rods 4343 drive the multiple moving bars 433 to slide in the sliding opening 432, thereby realizing the function of changing the grinding area, and then realizing the function of grinding sealing end covers of different sizes within a certain range, thereby improving the flexibility of the device in grinding.

[0052] See also Figure 8 The clamping block 435 is in a cylindrical structure, and a plurality of limiting strips 4351 are installed on the outer ring of the clamping block 435 , and a triangular protrusion is arranged at the lower end of the limiting strip 4351 .

[0053] See also Figure 1 , Figure 5 and Figure 6 The lifting unit 3 includes two hydraulic push rods 31 symmetrically installed at the left and right ends of the horizontal section of the U-shaped frame 1 through a rectangular plate. A strip plate 32 is commonly installed on the upper ends of the two hydraulic push rods 31. A sliding through hole 33 is opened on the strip plate 32. Two sliding rails 34 are symmetrically installed in the sliding through hole 33. An electric slider 35 is commonly slidably penetrated on the two sliding rails 34. The lower end of the electric slider 35 is fixedly connected to the driving motor 41.

[0054] During specific operation, the driving motor 41 and the electric slider 35 are connected to an external power source, and then the two hydraulic push rods 31 are connected to the existing hydraulic pump. After the grinding disc 431 and the moving bar 433 are adjusted, the electric slider 35 is started, and the electric slider 35 drives the driving motor 41 to move. The driving motor 41 drives the grinding disc 431 and multiple moving bars 433 to move through the threaded rod 42. At the same time, the grinding disc 431 drives the clamping block 435 to move to the square of the first supporting component 24, and then the two hydraulic push rods 31 are started. The two hydraulic push rods 31 drive the strip plate 32 to descend, and the strip plate 32 passes through the two The slide rail rod 34 drives the electric slider 35 to move downward, and the electric slider 35 drives the threaded rod 42 and the grinding disc 431 to move downward through the driving motor 41, and the grinding disc 431 drives the clamping block 435 to move downward, and the clamping block 435 drives the triangular protrusions at the lower ends of the plurality of limit strips 4351 to move toward the spline groove 242 and push the plurality of slope surfaces 243. The plurality of slope surfaces 243 are forced to drive the cylindrical rod 241 to rotate, so as to facilitate the insertion of the plurality of limit strips 4351 into the spline groove 242, until the grinding disc 431 and the moving strip 433 drive the grinding strip 4331 and the grinding plate 4311 to contact with each other. The sealing surface of the sealing end cover is tightly attached, and the cylindrical rod 241 supports the grinding disc 431 and the moving bar 433 at the same time, which improves the working stability of the grinding disc 431 and the moving bar 433, and can avoid the deviation of the grinding disc 431 and the moving bar 433 during the grinding process, thereby improving the grinding effect. Subsequently, the driving motor 41 is started, and the driving motor 41 drives the threaded rod 42 to rotate through the output shaft. The threaded rod 42 drives the grinding bar 4331 and the grinding plate 4311 to grind the sealing surface of the sealing end cover through the grinding disc 431 and the moving bar 433. After grinding for a period of time, the driving motor 41 is stopped. The motor 41 is driven, and the strip plate 32 is driven to rise through two hydraulic push rods 31. The strip plate 32 drives the electric slider 35 to reset upward through two slide rods 34. The electric slider 35 drives the threaded rod 42 and the grinding disc 431 to reset upward through the driving motor 41. Then the electric slider 35 drives the driving motor 41 to move to the upper end of the second supporting component 25, and repeats the previous steps of pressing the grinding strip 4331 and the grinding plate 4311 against the sealing surface of the sealing end cover and grinding until the sealing surface of the sealing end cover is completely polished, and then the polished sealing end cover is removed from the horizontal section of the U-shaped frame 1, and the grinding is completed.

[0055] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0056] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0057] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A CNC processing device for screw compressor accessories, comprising a U-shaped frame (1) with an opening facing downward, characterized in that: A waist-shaped hole (11) is provided on the horizontal section of the U-shaped frame (1); A limiting unit (2) is arranged on the horizontal section of the U-shaped frame (1), the limiting unit (2) comprising a height adjustment component (21) connected to the lower end of the horizontal section of the U-shaped frame (1), a lifting plate (22) is sleeved on the height adjustment component (21), a distance adjustment component (23) is arranged at the left end of the lifting plate (22), a first support component (24) is connected to the distance adjustment component (23), a second support component (25) is connected to the right side of the upper end of the lifting plate (22) and cooperates with the first support component (24) and utilizes the shape characteristics of the sealing end cover to implement internal clamping and rotation limiting of the sealing end cover, the first support component (24) and the second support component (25) respectively slide through the waist-shaped hole (11) and the horizontal section of the U-shaped frame (1); the U-shaped frame (1) is provided with a lifting unit (3); A grinding unit (4) is connected to the lower end of the lifting unit (3), and the grinding unit (4) comprises a driving motor (41) mounted on the lifting unit (3), a threaded rod (42) is mounted on the lower end of the output shaft of the driving motor (41), and a grinding component (43) is connected to the threaded rod (42); The grinding component (43) comprises a grinding disc (431) mounted at the lower end of the threaded rod (42); a plurality of sliding openings (432) evenly distributed in the circumferential direction are provided on the annular side wall of the grinding disc (431); a moving bar (433) is slidably connected in the sliding opening (432); an adjusting assembly (434) is connected to the threaded rod (42); a clamping block (435) is mounted at the middle of the lower end of the grinding disc (431); and the clamping block (435) cooperates with the first supporting component (24) to increase the force points of the grinding disc (431) during grinding.

2. The CNC processing device for screw compressor accessories according to claim 1, characterized in that: The lifting unit (3) comprises two hydraulic push rods (31) symmetrically mounted at the left and right ends of the horizontal section of the U-shaped frame (1) through a rectangular plate, a strip plate (32) being mounted on the upper ends of the two hydraulic push rods (31), a sliding through hole (33) being provided on the strip plate (32), two slide rails (34) being symmetrically mounted in the front and rear of the sliding through hole (33), an electric slider (35) being slidably penetrated through the two slide rails (34), and the lower end of the electric slider (35) being fixedly connected to the driving motor (41).

3. The CNC processing device for screw compressor accessories according to claim 1, characterized in that: The height adjustment component (21) comprises a positioning plate (211) mounted at the lower end of the horizontal section of the U-shaped frame (1); two rectangular countersunk holes (212) are symmetrically provided at the lower end of the positioning plate (211); a traction rod (213) is slidably connected in the rectangular countersunk hole (212); a connecting spring (214) is installed between one end of the traction rod (213) close to the middle of the positioning plate (211) and the hole wall of the rectangular countersunk hole (212); a plurality of trapezoidal limit blocks (215) evenly distributed from top to bottom are installed at one end of the traction rod (213) away from the connecting spring (214); and the trapezoidal limit blocks (215) slide through the side wall of the positioning plate (211).

4. The CNC processing device for screw compressor accessories according to claim 1, characterized in that: The pitch-adjusting component (23) comprises a moving through hole (231) provided on the lifting plate (22), a moving plate (232) being slidably connected in the moving through hole (231), a pitch-adjusting screw rod (233) being rotatably connected at the left end of the moving plate (232), and the pitch-adjusting screw rod (233) being threadedly connected to the left hole wall of the moving through hole (231).

5. The CNC processing device for screw compressor accessories according to claim 4, characterized in that: The first supporting component (24) comprises a cylindrical rod (241) rotatably connected to the upper end of the movable plate (232); a spline groove (242) is provided at the upper end of the cylindrical rod (241); a plurality of circumferentially evenly distributed slopes (243) are provided at the upper end of the inner annular surface of the spline groove (242); and a cylindrical sleeve (244) is rotatably connected to the outer surface of the cylindrical rod (241).

6. The CNC processing device for screw compressor accessories according to claim 5, characterized in that: The structure of the second supporting component (25) is consistent with that of the first supporting component (24), and only the size is different. The cylindrical rod (241) in the second supporting component (25) is rotatably connected to the lifting plate (22).

7. The CNC processing device for screw compressor parts according to claim 1, characterized in that: The adjustment assembly (434) includes a threaded sleeve (4341) threadedly connected to the threaded rod (42); the lower end of the threaded sleeve (4341) is rotatably connected to a lifting ring (4342); a plurality of circumferentially evenly distributed connecting rods (4343) are hinged on the outer ring surface of the lifting ring (4342); one end of the connecting rod (4343) away from the lifting ring (4342) is hinged to the corresponding moving bar (433).

8. The CNC processing device for screw compressor accessories according to claim 1, characterized in that: The clamping block (435) is in a cylindrical structure, and a plurality of limiting strips (4351) are installed on the outer ring of the clamping block (435), and a triangular protrusion is arranged at the lower end of the limiting strip (4351).

9. The CNC processing device for screw compressor accessories according to claim 1, characterized in that: A grinding strip (4331) is detachably mounted on the lower end of the movable strip (433), and a grinding plate (4311) is detachably mounted on the lower end of the grinding disc (431).

10. The CNC processing device for screw compressor parts according to claim 1, characterized in that: Support columns (221) are installed at the four corners of the lower end of the lifting plate (22).

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