Vertical milling machine with lifting adjusting function for casing hanger machining

Abstract

The vertical milling machine with the lifting adjusting function for casing hanger machining comprises a machining platform, and a first conveying assembly and a second conveying assembly are arranged at the positions, above and below a feeding through hole, of the machining platform correspondingly. Conveying ball screws symmetrically arranged on the two sides of the interior of the upper end of the machining platform are connected with the side edge of the lower end of a moving base through ball nut bases, a clamping blocking frame is arranged on the outer side of the upper portion of a through groove formed in the middle of the moving base, and the middles of the two sides of an overturning frame arranged on the inner side of the clamping blocking frame are connected with the interior of the clamping blocking frame through connecting rotating shafts. According to the vertical milling machine with the lifting adjusting function for casing hanger machining, the connecting rotating shaft and the overturning frame are driven by the driving motor to rotate in the clamping blocking frame, so that a machined part is overturned, the other end of the machined part can be machined without disassembly, the machining efficiency is improved, the splash-proof blocking frame and the clamping blocking frame are clamped, and the machining efficiency is improved. And chippings generated during machining are not prone to splashing, and the use safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field related to casing hanger processing, in particular to a vertical milling machine with a lifting and lowering adjustment function for processing casing hangers. Background Art

[0002] Casing hangers are divided into two types: slip type and mandrel type. Slip type casing hangers are further divided into: WD slip hanger, CG-21 slip hanger, CG-22 slip hanger, CG-29 slip hanger, and can also be flexibly designed according to customer requirements and actual working conditions. Milling machines are required in the processing of casing hangers. Milling machines are machine tools that can perform milling, drilling and boring on workpieces.

[0003] After searching, it is found that the typical vertical milling machine in the prior art is disclosed in CN217096723U, which includes a control box, a workbench and a fixed frame. The top of the control box is provided with a workbench, the top of the workbench is slidably connected to a sliding seat, the top of the sliding seat is fixedly connected to a fixed frame, the inner wall of the fixed frame is provided with a threaded rod through a bearing, the surface of the threaded rod is sleeved with a moving block, and the moving block is located inside the fixed frame, the top of the fixed frame is slidably connected to a clamping seat, and the bottom of the clamping seat is fixedly connected to the top of the moving block. The utility model is equipped with a fixed frame, a threaded rod, a moving block, a clamping seat, a limit baffle and a crank. In the process of using the vertical milling machine, it can ensure that the workpiece has a good processing effect and avoid the phenomenon of the workpiece being offset during the processing. It is more practical and safe.

[0004] To sum up, the existing vertical milling machine can only move the workpiece horizontally when in use. When the other end of the workpiece needs to be processed, it needs to be manually disassembled, turned over and then installed, which is cumbersome, increases manpower output and reduces processing efficiency. Secondly, the existing vertical milling machine cannot be automatically loaded and unloaded when in use. After the workpiece is processed, the workpiece cannot be separated from the device, nor can it be automatically loaded after the workpiece is taken out, which makes loading and unloading take a long time, affecting the processing efficiency. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to provide a vertical milling machine for casing hanger processing with a lifting and adjusting function, so as to solve the problem that the existing vertical milling machine mentioned in the above background technology can only move the workpiece horizontally when in use and cannot flip it independently. Secondly, it cannot automatically load and unload materials, so that loading and unloading takes a long time, affecting the processing efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vertical milling machine for processing casing hangers with a lifting and adjusting function, comprising a processing platform,

[0007] A supporting box is provided in the middle of the lower end of the processing platform, and a loading through hole and a unloading through hole are symmetrically provided in the middle of both sides of the processing platform about the supporting box, and at the same time, a first conveying component and a second conveying component are respectively provided above and below the processing platform for loading through holes, and the first conveying component and the second conveying component constitute a loading mechanism, and a milling processing component is provided on the rear middle side of the upper middle of the processing platform, and conveying ball screws are symmetrically provided on both sides of the upper inner side of the processing platform, and ball nut seats are installed on the two conveying ball screws, and at the same time, the two ball nut seats are respectively connected to the side edges of the lower end of the moving seat, a through groove is provided in the middle of the moving seat, and a locking block frame is provided on the outer side above the through groove, and a flip frame is provided on the inner side of the locking block frame, and the middle of both sides of the flip frame are connected to the inside of the locking block frame through a connecting shaft, and a connecting shaft provided on one side passes through the locking block frame and is connected to the output end of the driving motor.

[0008] Preferably, the processing platform is provided with a material unloading guide frame below the material unloading hole, and the inner side of the material unloading guide frame is connected to the side of the support box body close to the material unloading hole. At the same time, a ventilation mesh plate is installed at the lower end of the back side of the support box body, and the front side of the support box body is connected to a protective box door through a hinge.

[0009] Preferably, the first conveying assembly includes a conveying chassis, the bottom of the lower end of the conveying chassis is connected to one side of the upper end of the processing platform through a plurality of support columns, and a positioning hole is opened on one side of the conveying chassis above the loading through hole, and a positioning frame is arranged on the outer side of the lower end of the positioning hole, and elastic rubber pads are arranged on the inner sides of the positioning hole and the positioning frame, and conveying baffles are symmetrically arranged on the upper end of the conveying chassis, and the two conveying baffles are connected to the mounting frame near one side of the positioning hole, and the mounting frame is an L-shaped structure, and an electric push rod is arranged on the upper end of the mounting frame above the positioning hole, and the output end of the electric push rod is connected to a lower pressure seat.

[0010] Preferably, the second conveying assembly includes a positioning bracket, which is connected to the side of the supporting box close to the feeding through hole, and electric telescopic rods are symmetrically arranged on the inner side of the upper end of the positioning bracket, and the output ends of the two electric telescopic rods are connected to the lower end of the lifting base, an electromagnetic block is installed in the middle of the upper end of the lifting base, and a limit frame is arranged above the electromagnetic block, and the position of the electromagnetic block is arranged corresponding to the position of the positioning hole and the positioning frame, the limit frame is an annular structure, and a plurality of connecting columns are equidistantly arranged at the lower end of the limit frame, and the lower ends of the connecting columns are sequentially penetrated through the buffer spring and the lifting base and connected with the limit plate.

[0011] Preferably, the milling processing assembly includes a milling frame, and electric hydraulic cylinders are symmetrically arranged on both sides of the upper end of the milling frame, and the output ends of the electric hydraulic cylinders are connected to the upper end of the lifting top seat. At the same time, a rotating motor is arranged in the middle of the upper end of the lifting top seat, and the output end of the rotating motor is connected to the milling cutter through a coupling.

[0012] Preferably, a splash-proof frame is arranged on the outer side of the lower end of the lifting top seat, and the splash-proof frame is a U-shaped structure. At the same time, the lower end of the splash-proof frame is engaged with the corresponding engaging groove on the inner side of the upper end of the engaging frame. The splash-proof frame forms a lifting structure with the milling frame through the lifting top seat and the electric hydraulic cylinder.

[0013] Preferably, the lower end of the movable seat is located below the through groove and sealing side plates are symmetrically arranged on both sides, and suction heads are symmetrically arranged on the inner sides of the two sealing side plates. At the same time, the outer ends of the two suction heads are connected to the suction pump through correspondingly connected conveying pipes, and a slag guide pipe is arranged at the lower end of the suction pump, and the other end of the slag guide pipe passes through a locking hole opened in the middle of the protective box door and extends to the inside of the supporting box.

[0014] Preferably, the two ends of the two sealing side plates are respectively fitted with the inner sides of the corresponding ball nut seats, and the bottoms of the two sealing side plates are slidably connected to the middle bottom end inside the upper end of the processing platform.

[0015] Preferably, a plurality of electric cylinders are symmetrically arranged at equal distances on both sides of the interior of the flip frame, and the output ends of the electric cylinders are connected to the outer ends of the correspondingly arranged clamping side plates, and the two clamping side plates are semicircular structures.

[0016] Compared with the prior art, the invention has the following beneficial effects: the vertical milling machine for processing casing hangers with lifting and lowering adjustment function is

[0017] (1) In order to solve the problem that the existing vertical milling machine can only move the workpiece horizontally when in use, and when the other end of the workpiece needs to be processed, it needs to be manually disassembled, flipped and then installed, which is cumbersome, increases manpower output and reduces processing efficiency. The present application drives the connecting shaft and the flip frame to rotate inside the locking frame through a driving motor, thereby flipping the workpiece, so that the other end can be processed without disassembly, thereby improving processing efficiency. The splash-proof baffle frame and the locking baffle frame are engaged, so that the debris generated during processing is not easy to splash, thereby improving the safety of use. Sealing side plates are symmetrically arranged on both sides below the through groove, and then the suction head, conveying pipe, suction pump and slag guide pipe are used in combination to facilitate the collection of debris generated during processing, thereby improving the cleanliness of the processing environment and the practicality of the device.

[0018] (2) In order to solve the problem that the existing vertical milling machine cannot automatically load and unload materials during use, and after the workpiece is processed, the workpiece cannot be separated from the device, nor can the material be automatically loaded after the workpiece is taken out, so that loading and unloading takes a long time, affecting the processing efficiency, the present application sets a first conveying component and a second conveying component for use, so that the workpiece is guided and conveyed by the first conveying component, and then stored in the second conveying component. When loading is required, the second conveying component is moved up to convey the workpiece to the inside of the flip frame and clamped and fixed, so as to facilitate loading. At the same time, the workpiece is released when unloading, so that the workpiece passes through the through groove and the unloading through hole and is unloaded under the action of the unloading guide frame, so that the device has high loading and unloading efficiency and is easy to operate when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 The enlarged structural diagram at A in the middle;

[0021] Figure 3 For the present invention Figure 1 The enlarged structural diagram at B in the middle;

[0022] Figure 4 For the present invention Figure 1 The enlarged structural diagram at C in the middle;

[0023] Figure 5 For the present invention Figure 1 The enlarged structural diagram at D in the middle;

[0024] Figure 6 For the present invention Figure 5 The enlarged structural diagram at E in the middle;

[0025] Figure 7 It is a front view structural schematic diagram of the present invention;

[0026] Figure 8 For the present invention Figure 7 The enlarged structural diagram at F in the middle;

[0027] Fig. 9 It is a rear view structural schematic diagram of the present invention.

[0028] In the figure: 1, processing platform; 101, feeding hole; 102, unloading hole; 2, supporting box; 201, ventilation mesh plate; 202, protective box door; 3, first conveying assembly; 301, conveying chassis; 302, supporting column; 303, positioning hole; 304, positioning frame; 305, elastic rubber pad; 306, conveying baffle; 307, mounting frame; 308, electric push rod; 309, lower pressing seat; 4, second conveying assembly; 401, positioning bracket; 402, electric telescopic rod; 403, lifting base; 404, electromagnetic block; 405, limit frame; 406, connecting column; 407, limit plate; 408, buffer spring; 5, milling processing assembly; 501, milling frame; 502, electric hydraulic cylinder; 503, lifting top seat; 504, rotating motor; 505, coupling; 506, milling cutter; 507, splash-proof baffle frame; 6, conveying ball screw; 7, ball nut seat; 8, moving seat; 801, through slot; 9, engaging baffle frame; 901, engaging slot; 10, flip frame; 11, electric cylinder; 12, clamping side plate; 13, connecting shaft; 14, driving motor; 15, sealing side plate; 16, suction head; 17, conveying pipe; 18, suction pump; 19, slag guide pipe; 20, unloading guide frame. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-9 The present invention provides a technical solution: a vertical milling machine for processing casing hangers with a lifting and adjusting function, according to Figure 1 , Figure 2 , Figure 3 , Figure 7 and Fig. 9As shown, a support box 2 is arranged in the middle of the lower end of the processing platform 1, and a loading through hole 101 and a unloading through hole 102 are symmetrically opened in the middle of both sides of the processing platform 1 about the support box 2. A unloading guide frame 20 is arranged below the unloading through hole 102 on the processing platform 1, and the inner side of the unloading guide frame 20 is connected to the side of the support box 2 close to the unloading through hole 102. At the same time, a ventilation mesh plate 201 is installed at the lower end of the back side of the support box 2, through which the gas entering the inside of the support box 2 is easily discharged, and a protective box door 202 is connected to the front side of the support box 2 through a hinge. By opening the protective box door 202, it is convenient to clean up the impurities and debris stored in the support box 2, and at the same time, a first conveying assembly 3 and a second conveying assembly 4 are respectively arranged above and below the loading through hole 101 on the processing platform 1. The first conveying assembly 3 and the second conveying assembly 4 constitute a loading mechanism. The first conveying assembly 3 and the second conveying assembly 4 are used in combination to facilitate automatic conveying and loading of materials for processing, thereby improving loading efficiency and reducing manpower output.

[0031] Specifically, the first conveying assembly 3 includes a conveying chassis 301, the bottom of the lower end of the conveying chassis 301 is connected to one side of the upper end of the processing platform 1 through a plurality of support columns 302, and a positioning hole 303 is opened on one side of the conveying chassis 301 above the feeding through hole 101, and a positioning frame 304 is arranged on the outer side of the lower end of the positioning hole 303, and the positioning frame 304 makes the position of the conveying drop more accurate, and elastic rubber pads 305 are arranged on the inner sides of the positioning hole 303 and the positioning frame 304, and the workpiece is conveyed to the positioning hole 303 through the elastic rubber pad 305. When there is a certain resistance, the workpiece cannot be automatically dropped for transportation without the action of external force, thereby improving the accuracy and timing of transportation and avoiding too fast transportation, which leads to untimely processing and feeding, and affects the feeding efficiency. The upper end of the conveying base frame 301 is symmetrically provided with conveying baffles 306, and the two conveying baffles 306 are connected to the mounting frame 307 near the side of the positioning hole 303. At the same time, the mounting frame 307 is an L-shaped structure, and the upper end of the mounting frame 307 is located above the positioning hole 303 and is provided with an electric push rod 308, and the output end of the electric push rod 308 is connected to the lower pressure seat 309.

[0032] When in use, the workpieces are placed on the conveying base frame 301 in sequence. Then, due to the inclination of one end of the conveying base frame 301, the workpieces are moved downward and conveyed to the top of the positioning hole 303. Under the action of the elastic rubber pad 305, the workpieces are engaged in the positioning hole 303. Then, the electric push rod 308 is started to push the lower pressure seat 309 downward, so that the lower pressure seat 309 pushes the workpieces to move downward in the positioning hole 303 until the workpieces pass through the positioning frame 304 and are connected to the second conveying assembly 4 arranged below, thereby completing the conveyance of the workpieces.

[0033] Specifically, the second conveying assembly 4 includes a positioning bracket 401, which is connected to the side of the support box 2 close to the feeding through hole 101, and the electric telescopic rods 402 are symmetrically arranged on the inner side of the upper end of the positioning bracket 401. At the same time, the output ends of the two electric telescopic rods 402 are connected to the lower end of the lifting base 403. An electromagnetic block 404 is installed in the middle of the upper end of the lifting base 403. When the electromagnetic block 404 is energized, the electromagnetic block 404 generates magnetic force, fixes the bottom of the workpiece on the electromagnetic block 404, and improves the stability of the workpiece feeding. There is a limit frame 405, and the position of the electromagnetic block 404 is set corresponding to the position of the positioning hole 303 and the positioning frame 304. The limit frame 405 is an annular structure, and a plurality of connecting columns 406 are equidistantly arranged at the lower end of the limit frame 405. At the same time, the lower ends of the connecting columns 406 pass through the buffer spring 408 and the lifting base 403 in sequence and are connected to the limit plate 407. The limit frame 405 and the connecting columns 406 are used in combination to facilitate limiting the upper outer side of the workpiece, thereby improving the accuracy of the position of the workpiece placed on the electromagnetic block 404 and preventing it from shifting, thereby improving the accuracy of the loading position.

[0034] When in use, the electric telescopic rod 402 is started to push the lifting base 403 upward, so that the lifting base 403 drives the workpiece, the limit frame 405, the connecting column 406 and the limit plate 407 to move upward synchronously, and pass through the loading through hole 101 and the through groove 801 until the top of the limit frame 405 is in contact with the lower end of the flip frame 10 to locate the loading position of the workpiece. Then, the electric telescopic rod 402 is continued to be started to push the lifting base 403 upward, so that the limit frame 405, under the obstruction of the flip frame 10, squeezes the buffer spring 408 and pushes the connecting column 406 and the limit plate 407 to move downward, so that the outside of the workpiece enters between the two clamping side plates 12, and then the electric cylinder 11 is started to push the clamping side plate 12 to move toward the outside of the workpiece to clamp the workpiece, thereby completing the loading.

[0035] according to Figure 1 , Figure 4 , Figure 7 , Figure 8 and Fig. 9 As shown, a milling processing assembly 5 is arranged at the middle rear side of the upper end of the processing platform 1, and the milling processing assembly 5 includes a milling frame 501. Electric hydraulic cylinders 502 are symmetrically arranged on both sides of the upper end of the milling frame 501, and the output end of the electric hydraulic cylinder 502 is connected to the upper end of the lifting top seat 503. The lifting top seat 503 is driven to rise and fall by the electric hydraulic cylinder 502, so that the positions of the milling cutter 506 and the splash shield frame 507 can be adjusted, thereby improving the practicality and protection during processing. At the same time, a rotating motor 504 is arranged in the middle of the upper end of the lifting top seat 503, and the output end of the rotating motor 504 is connected to the milling cutter 506 through a coupling 505.

[0036] To further explain, a splash-proof frame 507 is arranged on the outer side of the lower end of the lifting top seat 503, and the splash-proof frame 507 is a U-shaped structure. At the same time, the lower end of the splash-proof frame 507 is snap-connected with the snap-fit ​​groove 901 correspondingly opened on the inner side of the upper end of the snap-fit ​​frame 9. The splash-proof frame 507 is used in combination with the snap-fit ​​frame 9 to ensure a sealed space during processing, thereby preventing debris from splashing and posing a threat to the personal safety of workers. At the same time, the cleanliness of the processing environment is improved. The splash-proof frame 507 forms a lifting structure with the milling frame 501 through the lifting top seat 503 and the electric hydraulic cylinder 502.

[0037] When in use, the electric hydraulic cylinder 502 pushes the lifting top seat 503 downward, so that the splash-proof shielding frame 507 arranged on the outer side of the lower end of the lifting top seat 503 is engaged with the upper end of the inner side of the upper end of the engaging groove 901 correspondingly opened on the inner side of the upper end of the engaging shielding frame 9, and at the same time, the milling cutter 506 is located in the middle of the workpiece. Then, the rotating motor 504 is started to drive the milling cutter 506 to rotate, thereby milling the workpiece. The debris generated during the processing is not easy to splash under the action of the splash-proof shielding frame 507, thereby improving the safety of processing and use.

[0038] according to Figure 1 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, conveying ball screws 6 are symmetrically arranged on both sides of the upper end of the processing platform 1, one end of the two conveying ball screws 6 is connected to the output end of the micro motor, and ball nut seats 7 are installed on the two conveying ball screws 6, and at the same time, the two ball nut seats 7 are respectively connected to the side edges of the lower ends of the moving seat 8, and the conveying ball screws 6 are driven to rotate by the micro motor, so that the ball nut seat 7 drives the moving seat 8 to move horizontally, so as to facilitate the movement of the workpiece to the bottom of the milling cutter 506 for processing, and at the same time, the processed workpiece can be further conveyed and unloaded, a through groove 801 is opened in the middle of the moving seat 8, and a locking block frame 9 is arranged on the outer side above the through groove 801, and a flip frame 10 is arranged on the inner side of the locking block frame 9, and the two sides of the flip frame 10 are equidistantly spaced. It is said that multiple electric cylinders 11 are provided, and the output ends of the electric cylinders 11 are connected to the outer ends of the corresponding clamping side plates 12. At the same time, the two clamping side plates 12 are semicircular structures. The electric cylinders 11 push the clamping side plates 12 to move toward the middle, which is convenient for clamping and positioning the workpiece and improving the stability during processing. The middle of the two sides of the flip frame 10 is connected to the inside of the clamping block frame 9 through the connecting shaft 13, and the connecting shaft 13 set on one side penetrates the clamping block frame 9 and is connected to the output end of the driving motor 14. The driving motor 14 drives the connecting shaft 13 and the flip frame 10 to rotate and flip, so that the workpiece clamped by the clamping side plates 12 is also flipped synchronously, thereby facilitating the processing of the other end of the workpiece, thereby improving the practicality and processing efficiency of use.

[0039] Further explanation: the lower end of the movable seat 8 is located below the through groove 801 and sealed side plates 15 are symmetrically arranged on both sides. Through the sealed side plates 15, the debris and dust generated during processing are relatively fixed in space when they fall, and will not spread to pollute other positions of the processing platform 1, and are convenient for collection. The two ends of the two sealed side plates 15 are respectively fitted with the inner sides of the corresponding ball nut seats 7, and the bottoms of the two sealed side plates 15 are slidably connected to the middle bottom ends of the upper ends of the processing platform 1, and the inner sides of the two sealed side plates 15 are symmetrically arranged. The suction head 16, and the outer ends of the two suction heads 16 are connected to the suction pump 18 through the corresponding connected conveying pipes 17. A slag guiding pipe 19 is arranged at the lower end of the suction pump 18, and the other end of the slag guiding pipe 19 passes through the engagement hole opened in the middle of the protective box door 202 and extends to the inside of the support box 2. Through the suction pump 18, the debris and dust generated during processing enter the conveying pipe 17 through the suction head 16 under the action of suction, and then are transported to the inside of the support box 2 for storage through the slag guiding pipe 19, thereby improving the cleanliness during processing.

[0040] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0041] 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

1. A vertical milling machine for machining casing hangers with a lifting and adjusting function, comprising a machining platform (1), characterized in that: A support box (2) is provided in the middle of the lower end of the processing platform (1), and a loading through hole (101) and a unloading through hole (102) are symmetrically provided in the middle of both sides of the processing platform (1) with respect to the support box (2), and a first conveying component (3) and a second conveying component (4) are respectively provided above and below the loading through hole (101) of the processing platform (1), and the first conveying component (3) and the second conveying component (4) constitute a loading mechanism, a milling processing component (5) is provided at the rear middle of the upper end of the processing platform (1), and conveying balls are symmetrically provided on both sides of the inner part of the upper end of the processing platform (1). A screw rod (6) is provided, and a ball nut seat (7) is installed on each of the two conveying ball screw rods (6). The two ball nut seats (7) are respectively connected to the lower side edges of the moving seat (8). A through slot (801) is provided in the middle of the moving seat (8), and a locking block frame (9) is provided on the upper outer side of the through slot (801). A flip frame (10) is provided on the inner side of the locking block frame (9). The middle of both sides of the flip frame (10) are connected to the inside of the locking block frame (9) through a connecting shaft (13), and a connecting shaft (13) provided on one side passes through the locking block frame (9) and is connected to the output end of the driving motor (14).

2. The vertical milling machine for processing casing hangers with lifting and lowering adjustment function according to claim 1, characterized in that: The processing platform (1) is provided with a material unloading guide frame (20) located below the material unloading through hole (102), and the inner side of the material unloading guide frame (20) is connected to the side of the support box (2) close to the material unloading through hole (102), and a ventilation mesh plate (201) is installed at the lower end of the back side of the support box (2), and the front side of the support box (2) is connected to a protective box door (202) via a hinge.

3. The vertical milling machine for processing casing hangers with lifting and lowering adjustment function according to claim 1, characterized in that: The first conveying assembly (3) comprises a conveying chassis (301), the bottom of the lower end of the conveying chassis (301) is connected to one side of the upper end of the processing platform (1) through a plurality of support columns (302), and a positioning hole (303) is provided on one side of the conveying chassis (301) above the feeding through hole (101), and a positioning frame (304) is provided on the outer side of the lower end of the positioning hole (303), and elastic rubber pads (305) are provided on the inner sides of the positioning hole (303) and the positioning frame (304), and conveying baffles (306) are symmetrically provided on the upper end of the conveying chassis (301), and the two conveying baffles (306) are connected to a mounting frame (307) near one side of the positioning hole (303), and the mounting frame (307) is an L-shaped structure, and an electric push rod (308) is provided on the upper end of the mounting frame (307) above the positioning hole (303), and the output end of the electric push rod (308) is connected to a lower pressing seat (309).

4. The vertical milling machine for machining casing hangers with lifting and lowering adjustment function according to claim 1, characterized in that: The second conveying assembly (4) comprises a positioning bracket (401), the positioning bracket (401) is connected to a side of the supporting box (2) close to the loading through hole (101), and electric telescopic rods (402) are symmetrically arranged on the inner side of the upper end of the positioning bracket (401), and the output ends of the two electric telescopic rods (402) are connected to the lower end of the lifting base (403), an electromagnetic block (404) is installed in the middle of the upper end of the lifting base (403), and a limit frame (405) is arranged above the electromagnetic block (404), and the position of the electromagnetic block (404) is arranged corresponding to the position of the positioning hole (303) and the positioning frame (304), the limit frame (405) is an annular structure, and a plurality of connecting columns (406) are equidistantly arranged at the lower end of the limit frame (405), and the lower ends of the connecting columns (406) are sequentially penetrated through the buffer spring (408) and the lifting base (403) and connected to the limit plate (407).

5. The vertical milling machine for machining casing hangers with lifting and lowering adjustment function according to claim 1, characterized in that: The milling processing assembly (5) comprises a milling frame (501), and electric hydraulic cylinders (502) are symmetrically arranged on both sides of the upper end of the milling frame (501), and the output ends of the electric hydraulic cylinders (502) are connected to the upper end of the lifting top seat (503), and a rotating motor (504) is arranged in the middle of the upper end of the lifting top seat (503), and the output end of the rotating motor (504) is connected to the milling cutter (506) through a coupling (505).

6. The vertical milling machine for machining casing hangers with lifting and lowering adjustment function as claimed in claim 5, characterized in that: A splash-proof shielding frame (507) is arranged on the outer side of the lower end of the lifting top seat (503), and the splash-proof shielding frame (507) is a U-shaped structure. At the same time, the lower end of the splash-proof shielding frame (507) is engaged with a corresponding engaging groove (901) provided on the inner side of the upper end of the engaging shielding frame (9). The splash-proof shielding frame (507) forms a lifting structure with the milling frame (501) through the lifting top seat (503) and the electric hydraulic cylinder (502).

7. The vertical milling machine for machining casing hangers with lifting and lowering adjustment function according to claim 1, characterized in that: The lower end of the movable seat (8) is located below the through groove (801), and sealing side plates (15) are symmetrically arranged on both sides, and suction heads (16) are symmetrically arranged on the inner sides of the two sealing side plates (15). At the same time, the outer ends of the two suction heads (16) are connected to the suction pump (18) through correspondingly connected conveying pipes (17). A slag guide pipe (19) is arranged at the lower end of the suction pump (18), and the other end of the slag guide pipe (19) passes through a snap-fit ​​hole opened in the middle of the protective box door (202) and extends to the inside of the supporting box body (2).

8. The vertical milling machine for machining casing hangers with lifting and lowering adjustment function as claimed in claim 7, characterized in that: The two ends of the two sealing side plates (15) are respectively fitted with the inner sides of the correspondingly arranged ball nut seats (7), and the bottoms of the two sealing side plates (15) are slidably connected with the middle bottom end inside the upper end of the processing platform (1).

9. The vertical milling machine for machining casing hangers with lifting and lowering adjustment function according to claim 1, characterized in that: A plurality of electric cylinders (11) are symmetrically arranged at equal distances on both sides of the interior of the flip frame (10), and the output ends of the electric cylinders (11) are connected to the outer ends of correspondingly arranged clamping side plates (12), and the two clamping side plates (12) are semicircular structures.

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