An automatic lathe for multi-angle processing of large valve bodies

Abstract

The present invention discloses an automatic lathe for multi-angle processing of large valve bodies, comprising a base, wherein the base is composed of a rectangular cylinder and a flanging seat arranged at the bottom end of the outer wall of the rectangular cylinder. The beneficial effect of the present invention is that, through the design of combining a fixed tool with an angle-adjusting tool, multi-angle adjustment of the lathe tool is realized, adaptation to complex workpiece shapes and specific cutting requirements is achieved, and the scope of application is expanded. At the same time, the design of the front and back double-sided clamps enables the lathe to clamp two large valve bodies to be processed at the same time, and the positions of the workpieces can be quickly exchanged during the processing without interrupting the processing for a long time, thus shortening the downtime of the lathe, shortening the overall processing cycle, improving the flexibility and response speed of the lathe processing, and improving the processing efficiency. In addition, the design of the unloader simplifies the installation and disassembly steps of the large valve body, further improving the processing efficiency, and the design of the stable structure ensures the stability and safety of the processing process.

Description

Technical Field

[0001] The invention relates to the technical field of lathes, in particular to an automatic lathe for multi-angle processing of a large valve body. Background Art

[0002] The valve body is a device that uses a movable part to open, close or partially block one or more openings or channels, so that liquid flow, air flow or other air flow or a large amount of loose materials can flow out, be blocked or adjusted. This device is called a movable part. Such a large movable part is called a large valve body.

[0003] After the large valve body is processed, some burrs or other unqualified locations on the valve body surface need to be turned to ensure that the size of the large valve body is qualified. In this way, a lathe is needed to process it. The existing technologies involved include:

[0004] 1. A single-column CNC vertical lathe with publication number CN117583628B, comprising a workbench on the lathe, an operating table installed on the workbench, a six-jaw chuck arranged on the operating table, a protective component arranged on the upper end surface of the workbench, the protective component is located outside the operating table, and the protective component is used to prevent waste chips from splashing when grinding a workpiece, and a driving component is installed on the workbench;

[0005] 2. A gantry type vertical lathe with publication number CN210587173U is used for turning of extra-large workpieces. The gantry type vertical lathe comprises a gantry-shaped tool rest, a tool holder capable of sliding horizontally along the crossbeam is provided at the crossbeam of the tool rest; a tool is fixed at the lower end of the tool holder; the tool holder can drive the tool to move up and down; a turntable capable of fixing extra-large workpieces is provided at the lower part of the tool rest; a chip retaining wall is provided between the columns of the gantry type tool rest;

[0006] In the above-mentioned existing lathes, the lathe tools can only act on the workpiece at a vertical angle, the processing flexibility is limited, it is not convenient to adapt to complex workpiece shapes and specific cutting requirements, the scope of application is small, and only one workpiece to be processed can be fixed on the lathe. The installation and disassembly of the workpiece can only be completed during non-processing time. Each time the workpiece is replaced, the processing work needs to be interrupted for a long time, and cumbersome installation and disassembly steps need to be performed, which prolongs the overall processing cycle, reduces the flexibility and response speed of the lathe processing, and has low processing efficiency. In view of this, in-depth research was conducted on the above-mentioned problems, and this case was generated. Summary of the invention

[0007] The purpose of the present invention is to solve the above-mentioned problems. A large-scale valve body multi-angle processing automatic lathe is designed to solve the problem that the existing lathe tools can only act on the workpiece at a vertical angle, the processing flexibility is limited, it is not convenient to adapt to complex workpiece shapes and specific cutting requirements, the scope of application is small, and only one workpiece to be processed can be fixed on the lathe. The installation and disassembly of the workpiece can only be completed during non-processing time. Each time the workpiece is replaced, the processing work needs to be interrupted for a long time, and cumbersome installation and disassembly steps need to be performed, which prolongs the overall processing cycle, reduces the flexibility and response speed of lathe processing, and has low processing efficiency.

[0008] The technical solution of the present invention to achieve the above-mentioned purpose is: a large-scale valve body multi-angle processing automatic lathe, comprising a base, the base is composed of a rectangular cylinder and a flange seat arranged at the bottom end of the outer wall of the rectangular cylinder, two entrance and exit doors are hinged on the front end wall of the rectangular cylinder, a gantry is also installed on the upper wall of the rectangular cylinder, a processing tool is installed on the gantry, and a clamping tool is installed on the rectangular cylinder;

[0009] The processing tool comprises a transverse shifter, on which a fixed tool is mounted, and on which two angle-adjusting tools are symmetrically mounted;

[0010] The clamping device comprises a front and back double-sided clamp installed on a rectangular cylinder, a disassembler located below the front and back double-sided clamp, and a stable structure matched with the front and back double-sided clamp;

[0011] The fixed tool comprises a central hydraulic cylinder, and a fixed turning tool is installed at the telescopic end of the central hydraulic cylinder;

[0012] Each of the angle-adjustable tools comprises a rotating joint, which is mounted on the side wall of the fixed end of the central hydraulic cylinder. A distance-adjusting hydraulic cylinder is mounted at one end of the rotating joint, an edge hydraulic cylinder is mounted at the telescopic end of the distance-adjusting hydraulic cylinder, and an angle-adjustable turning tool is mounted at the telescopic end of the edge hydraulic cylinder.

[0013] Preferably, the rotating joint includes a U-shaped fixing seat, the U-shaped fixing seat is installed on the side wall surface of the fixed end of the central hydraulic cylinder, an adjusting motor is installed on the U-shaped fixing seat, the driving end of the adjusting motor is movably inserted on the U-shaped fixing seat, a rotating frame is fixedly mounted on the driving end of the adjusting motor, and the distance adjusting hydraulic cylinder is installed on the rotating frame.

[0014] Preferably, the front and back double-sided clamp comprises two reversing motors, the two reversing motors are symmetrically mounted on the inner wall of the rectangular cylinder, the driving ends of the two reversing motors are mounted with a basic ring seat, two turntables are symmetrically mounted on the basic ring seat, and the two turntables are both mounted with a clamp, and the clamp and the turntable are connected to each other by a plurality of bolts;

[0015] The basic ring seat comprises a ring ring, on the inner wall surface of which two rotary drive motors are mounted, and the two rotary drive motors are mounted opposite to each other up and down, and driving ends of the two rotary drive motors are mounted with driving gears, and on the inner wall surface of the ring ring two annular grooves are arranged, and the two turntables are symmetrically mounted on the annular grooves, and two insertion grooves are symmetrically arranged on the outer wall surface of the ring ring, and two positioning holes are arranged on the outer wall surface of the ring ring, and at a position between the two insertion grooves.

[0016] Preferably, each of the turntables includes a rotating disk cover, which is movably mounted on the annular groove, an inner gear ring is mounted on the inner wall of the rotating disk cover, the inner gear ring is meshed with the driving gear, and a plurality of internal threaded sleeves are mounted in a circular array on the rotating disk cover.

[0017] Preferably, the clamp includes a connecting plate, the connecting plate is provided with through holes corresponding to the multiple internal threaded sleeves, the bolts are movably inserted into the through holes and are threadedly inserted into the internal threaded sleeves, the connecting plate is provided with four grooves in a circular array, a circular groove is provided in the center of the connecting plate, four clamping motors are installed in a circular array on the inner bottom surface of the circular groove, rotating rods are movably inserted into the four grooves, one end of the rotating rod is installed on the driving end of the clamping motor, the rotating rod is provided with threads, and clamping blocks are movably installed on the four grooves, and the clamping blocks are threadedly mounted on the rotating rods.

[0018] Preferably, the unloader includes two mounting grooves symmetrically opened on the inner wall of the rectangular cylinder, and a moving component is installed on the two mounting grooves, a connecting plate is installed on the moving component, two fixed rods are installed on the side wall of the connecting plate, and a clamping hydraulic cylinder is installed on the lower wall of each of the fixed rods, and an adjusting rod is installed on the telescopic end of the clamping hydraulic cylinder.

[0019] Preferably, the moving component includes a lifting drive motor, which is installed on the inner bottom surface of the installation groove, and a screw rod is installed on the driving end of the lifting drive motor. A moving block is movably mounted on the screw rod through a threaded sleeve, and the moving block is movably fitted on the inner wall surface of the installation groove. An inserted hydraulic cylinder is installed on the moving block, and an electric turntable is installed on the telescopic end of the inserted hydraulic cylinder, and the connecting plate is installed on the electric turntable.

[0020] Preferably, the stable structure includes two L-shaped frames symmetrically installed on the inner wall of the rectangular cylinder, two positioning cylinders are installed on the opposite inner walls of the rectangular cylinder, the telescopic ends of the two positioning cylinders are movably inserted on the L-shaped frames, and the telescopic ends of the two positioning cylinders are movably inserted on the two positioning holes, and the driving ends of the two reversing motors are movably inserted on the two L-shaped frames.

[0021] Preferably, the stabilizing structure also includes two baffles symmetrically and movably passing through the side wall of the rectangular cylinder, the two baffles are movably inserted into the two insertion slots respectively, and two driving cylinders are installed on each of the baffles, and the two driving cylinders are fixedly installed on the outer wall of the rectangular cylinder.

[0022] Preferably, a blocking cover is installed on the circular groove.

[0023] The large valve body multi-angle processing automatic lathe manufactured by utilizing the technical solution of the present invention realizes multi-angle adjustment of the lathe tool through the design of combining a fixed tool with an angle-adjustable tool, realizes adaptation to complex workpiece shapes and specific cutting requirements, and expands the scope of application. At the same time, the design of the front and back double-sided clamps enables the lathe to clamp two large valve bodies to be processed at the same time, and the workpiece positions can be quickly exchanged during the processing without interrupting the processing for a long time, thus shortening the lathe downtime, shortening the overall processing cycle, improving the flexibility and response speed of the lathe processing, and improving the processing efficiency. In addition, the design of the unloader simplifies the installation and disassembly steps of the large valve body, further improving the processing efficiency, and the design of the stable structure ensures the stability and safety of the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional diagram from a top view of the entirety of the automatic lathe for multi-angle processing of a large valve body as described in the present invention.

[0025] Figure 2 This is a three-dimensional diagram from an upward angle of the entirety of the automatic lathe for multi-angle processing of a large valve body as described in the present invention.

[0026] Figure 3 This is a front view of the processing tool portion of an automatic lathe for multi-angle processing of a large valve body according to the present invention.

[0027] Figure 4 This is a front view of the clamping device part of an automatic lathe for multi-angle processing of a large valve body according to the present invention.

[0028] Figure 5 This is a three-dimensional diagram of the processing tool parts of an automatic lathe for multi-angle processing of a large valve body described in the present invention.

[0029] Figure 6This is a three-dimensional diagram of the front and back double-sided fixture parts of an automatic lathe for multi-angle processing of a large valve body described in the present invention.

[0030] Figure 7 This is a top view of the front and back double-sided clamping parts of an automatic lathe for multi-angle processing of a large valve body according to the present invention.

[0031] Figure 8 This is a three-dimensional diagram of the turntable portion of an automatic lathe for multi-angle processing of a large valve body described in the present invention.

[0032] Fig. 9 This is a three-dimensional diagram of the basic ring seat part of an automatic lathe for multi-angle processing of a large valve body described in the present invention.

[0033] Fig.10 This is a three-dimensional diagram of the unloader portion of an automatic lathe for multi-angle processing of a large valve body described in the present invention.

[0034] In the figure: 1, rectangular cylinder, 2, flanging seat, 3, access door, 4, gantry, 5, transverse shifter, 6, center hydraulic cylinder, 7, fixed turning tool, 8, distance adjustment hydraulic cylinder, 9, edge hydraulic cylinder, 10, angle adjustment turning tool, 11, U-shaped fixed seat, 12, adjustment motor, 13, rotating frame, 14, reversing motor, 15, bolt, 16, ring, 17, rotation drive motor, 18, driving gear, 19, rotating disk cover, 20, Inner gear ring, 21. Internal threaded sleeve, 22. Connecting plate, 23. Clamping motor, 24. Turntable, 25. Clamping block, 26. Connecting plate, 27. Fixed plug rod, 28. Clamping hydraulic cylinder, 29. Adjusting rod, 30. Lifting drive motor, 31. Screw, 32. Moving block, 33. Inserting hydraulic cylinder, 34. Electric turntable, 35. L-shaped frame, 36. Positioning cylinder, 37. Baffle, 38. Drive cylinder, 39. Cover. DETAILED DESCRIPTION

[0035] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-10 As shown, an automatic lathe for multi-angle processing of large valve bodies.

[0036] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0037] Embodiment: A large valve body multi-angle processing automatic lathe comprises a base, the base comprises a rectangular cylinder 1 and a flange seat 2 arranged at the bottom end of the outer wall of the rectangular cylinder 1, two inlet and outlet doors 3 are hingedly connected to the front end wall of the rectangular cylinder 1, a gantry 4 is also installed on the upper wall of the rectangular cylinder 1, a processing tool is installed on the gantry 4, and a clamping tool is installed on the rectangular cylinder 1;

[0038] Specifically, the device is placed on the ground of the processing site through the flanging seat 2, the height of the rectangular cylinder 1 is not less than 2 meters, and the internal space of the rectangular cylinder 1 meets the requirements of normal operation of the clamping device and normal operation of the operator inside the rectangular cylinder 1. The staff enters and exits the rectangular cylinder 1 through the access door 3. When working, the clamping device can clamp two large valve bodies to be processed, and the processing tools on the gantry 4 are used to turn the large valve bodies;

[0039] In the specific implementation process, the processing tool includes a transverse shifter 5, on which a fixed tool is installed, and on which two angle-adjusting tools are symmetrically installed;

[0040] Specifically, through the operation of the transverse shifter 5, the fixed tool and the two angle-adjusting tools on the fixed tool can be moved along the gantry 4. The transverse shifter 5 includes but is not limited to the use of a lead screw module, and the selection of its components can meet the transverse movement state of the fixed tool and the two angle-adjusting tools;

[0041] In the specific implementation process, the clamping device includes a front and back double-sided clamp installed on the rectangular cylinder 1, a disassembler located below the front and back double-sided clamp, and a stable structure matching the front and back double-sided clamp;

[0042] Specifically, the front and back double-sided clamp can clamp, rotate and flip two large valve bodies to be processed, the unloader is used to assist in unloading the processed large valve bodies, and the stable structure is used to ensure the stability of the front and back double-sided clamp;

[0043] In the specific implementation process, the fixed tool includes a central hydraulic cylinder 6, and a fixed turning tool 7 is installed at the telescopic end of the central hydraulic cylinder 6;

[0044] Specifically, by extending and retracting the central hydraulic cylinder 6, the height of the fixed turning tool 7 can be adjusted to act on large valve body surfaces of different sizes;

[0045] In the specific implementation process, each angle adjustment tool includes a rotating joint, which is installed on the side wall of the fixed end of the central hydraulic cylinder 6, and a distance adjustment hydraulic cylinder 8 is installed at one end of the rotating joint, and an edge hydraulic cylinder 9 is installed at the telescopic end of the distance adjustment hydraulic cylinder 8, and an angle adjustment turning tool 10 is installed at the telescopic end of the edge hydraulic cylinder 9;

[0046] Specifically, the distance between the edge hydraulic cylinder 9 and the center hydraulic cylinder 6 can be adjusted by extending and retracting the distance adjustment hydraulic cylinder 8. The angle between the edge hydraulic cylinder 9 and the center hydraulic cylinder 6, that is, the angle of the angle adjustment tool 10, can be adjusted by rotating the joint to adapt to the turning of large valve bodies with more complex shapes and expand the scope of application. The height of the angle adjustment tool 10 is adjusted by extending and retracting the edge hydraulic cylinder 9 to act on the surface of large valve bodies of different sizes.

[0047] In the specific implementation process, the rotating joint includes a U-shaped fixed seat 11, which is installed on the side wall of the fixed end of the central hydraulic cylinder 6, and an adjusting motor 12 is installed on the U-shaped fixed seat 11. The driving end of the adjusting motor 12 is movably inserted on the U-shaped fixed seat 11, and a rotating frame 13 is fixedly sleeved on the driving end of the adjusting motor 12, and the distance adjusting hydraulic cylinder 8 is installed on the rotating frame 13;

[0048] Specifically, when the angle between the edge hydraulic cylinder 9 and the center hydraulic cylinder 6 needs to be adjusted, the adjusting motor 12 is controlled to work, and the driving end of the adjusting motor 12 drives the rotating frame 13 to rotate, so that the distance adjusting hydraulic cylinder 8 rotates, thereby achieving the angle adjustment;

[0049] In the specific implementation process, the front and back double-sided clamp includes two reversing motors 14, which are symmetrically installed on the inner wall of the rectangular cylinder 1. The driving ends of the two reversing motors 14 are installed with a basic ring seat, and two turntables are symmetrically installed on the basic ring seat. A clamp is installed on both turntables, and the clamp and the turntable are connected to each other through a plurality of bolts 15.

[0050] Specifically, during the turning operation, the clamps on the two turntables clamp a large valve body respectively, and the processing tool processes the large valve body located on the upper side. After the processing is completed, the reversing motor 14 is operated to rotate the basic ring seat, and the positions of the two large valve bodies are exchanged, and the large valve body to be processed is aligned with the processing tool. The processed large valve body is located inside the rectangular cylinder 1, and the clamp and the large valve body on the clamp are disassembled by the unloader. The clamp is fixedly mounted on the turntable by bolts 15.

[0051] In the specific implementation process, the basic ring seat includes a ring ring 16, two rotating drive motors 17 are installed on the inner wall of the ring ring 16, and the two rotating drive motors 17 are installed up and down oppositely, and the driving ends of the two rotating drive motors 17 are installed with driving gears 18, two annular grooves are provided on the inner wall of the ring ring 16, and two rotating disks are symmetrically installed on the annular grooves respectively, and two insertion grooves are symmetrically provided on the outer wall of the ring ring 16, and two positioning holes are provided on the outer wall of the ring ring 16, and the part located between the two insertion grooves;

[0052] In the specific implementation process, each turntable includes a rotating disk cover 19, which is movably mounted on the annular groove, and an inner gear ring 20 is mounted on the inner wall of the rotating disk cover 19, and the inner gear ring 20 is meshed with the driving gear 18, and a plurality of internal threaded sleeves 21 are mounted on the rotating disk cover 19 in a circular array;

[0053] Specifically, when turning, the rotary drive motor 17 with the driving end pointing in the direction of the processing tool works, so that the driving gear 18 on it rotates, and the inner gear ring 20 is meshed with the driving gear 18, and the inner gear ring 20 drives the rotating disk cover 19 to rotate on the ring 16. Under the connection of the bolt 15, the clamp is fixedly installed on the turntable, and the clamp and the large valve body on the clamp are rotated;

[0054] In the specific implementation process, the clamp includes a connecting disk 22, and through holes are opened on the connecting disk 22 corresponding to the multiple internal threaded sleeves 21. The bolt 15 movably passes through the through hole and is inserted into the internal threaded sleeve 21 through a thread. Four strip grooves are opened in a circular array on the connecting disk 22, and a circular groove is opened in the center of the connecting disk 22. Four clamping motors 23 are installed in a circular array on the inner bottom surface of the circular groove. A rotating rod 24 is movably inserted on the four strip grooves, and one end of the rotating rod 24 is installed on the driving end of the clamping motor 23. The rotating rod 24 is threaded, and a clamping block 25 is movably installed on the four strip grooves. The clamping block 25 is sleeved on the rotating rod 24 through a thread.

[0055] Specifically, when fixing the large valve body, the large valve body is placed on the connecting plate 22, and the four clamping motors 23 are operated to rotate the rotating rod 24 thereon, and the clamping block 25 is connected to the rotating rod 24 by threads, and the clamping block 25 moves along the groove to clamp and fix the large valve body;

[0056] In the specific implementation process, the unloader includes two mounting grooves symmetrically opened on the inner wall of the rectangular cylinder 1, and the two mounting grooves are both equipped with moving components, and the moving components are equipped with a connecting plate 26, and two fixed plug rods 27 are installed on the side wall of the connecting plate 26, and a clamping hydraulic cylinder 28 is installed on the lower wall of each fixed plug rod 27, and an adjusting rod 29 is installed on the telescopic end of the clamping hydraulic cylinder 28;

[0057] In the specific implementation process, the moving assembly includes a lifting drive motor 30, which is installed on the inner bottom surface of the installation groove, and a screw rod 31 is installed on the driving end of the lifting drive motor 30, and a moving block 32 is movably mounted on the screw rod 31 through a threaded sleeve, and the moving block 32 is movably fitted on the inner wall surface of the installation groove, and an inserted hydraulic cylinder 33 is installed on the moving block 32, and an electric turntable 34 is installed on the telescopic end of the inserted hydraulic cylinder 33, and the connecting plate 26 is installed on the electric turntable 34;

[0058] Specifically, when the processing tool has completed processing on the large valve body located above, the reversing motor 14 works to align the large valve body to be processed with the processing tool. At this time, the fixed plug rod 27 is aligned with the gap between the rotating disk cover 19 and the connecting disk 22. Then the plug-in hydraulic cylinders 33 on both sides extend to make the fixed plug rod 27 extend into the gap between the rotating disk cover 19 and the connecting disk 22, and the fixed plug rod 27 fits the connecting disk 22. Then the clamping hydraulic cylinder 28 contracts to make the adjusting rod 29 fit on the processed large valve body. At this time, the operator enters the rectangular cylinder 1 through the access door 3, removes the bolts 15, and separates the clamp from the turntable. Under the action of the unloader, the clamp is prevented from being detached from the processed large valve body. The body falls, playing a supporting and fixing role, then the lifting drive motor 30 works, the screw rod 31 rotates, and the moving block 32 descends in the installation groove under the threaded connection, so that the clamper and the processed large valve body gradually descend, and then the electric turntable 34 works to turn the clamper and the processed large valve body over, so that the processed large valve body is located above the clamper, which is convenient for collecting the processed large valve body, and then the new large valve body to be processed is fixed on the clamper, and then the unloader assists the fixed installation of the clamper and the turntable. At this time, the processing tool is still turning, which shortens the downtime of the lathe, shortens the overall processing cycle, improves the flexibility and response speed of the lathe processing, and improves the processing efficiency;

[0059] In the specific implementation process, the stable structure includes two L-shaped frames 35 symmetrically installed on the inner wall of the rectangular cylinder 1, and two positioning cylinders 36 are installed on the opposite inner walls of the rectangular cylinder 1. The telescopic ends of the two positioning cylinders 36 are movably inserted on the L-shaped frames 35, and the telescopic ends of the two positioning cylinders 36 are movably inserted on the two positioning holes respectively, and the driving ends of the two reversing motors 14 are movably inserted on the two L-shaped frames 35 respectively;

[0060] In the specific implementation process, the stable structure also includes two baffles 37 symmetrically and movably penetrating the side wall of the rectangular cylinder 1, and the two baffles 37 are movably inserted into the two insertion slots respectively, and two driving cylinders 38 are installed on each baffle 37, and the two driving cylinders 38 are fixedly installed on the outer wall of the rectangular cylinder 1;

[0061] Specifically, the L-shaped frame 35 is used to support the driving end of the reversing motor 14 and the telescopic end of the positioning cylinder 36. When turning is performed, the positioning cylinder 36 is extended, and the telescopic end of the positioning cylinder 36 is extended into the positioning hole to fix and support the ring 16, and the driving cylinder 38 is contracted to insert the baffle 37 into the insertion slot to fix and support the ring 16, and the baffle 37 is also used to block part of the gap between the rectangular cylinder 1 and the front and back double-sided clamp to increase the safety factor. When the front and back double-sided clamp needs to be turned over, the positioning cylinder 36 is contracted to disengage the telescopic end of the positioning cylinder 36 from the positioning hole, and the two driving cylinders 38 are extended to disengage the baffle 37 from the insertion slot, canceling the fixed support effect of the ring 16;

[0062] In the specific implementation process, as a preferred embodiment, further, a blocking cover 39 is installed on the circular groove to cover the circular groove.

[0063] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A large valve body multi-angle processing automatic lathe, comprising a base, the base consisting of a rectangular cylinder (1) and a flange seat (2) arranged at the bottom end of the outer wall of the rectangular cylinder (1), two access doors (3) are hingedly connected to the front end wall of the rectangular cylinder (1), and a gantry (4) is also installed on the upper wall of the rectangular cylinder (1), characterized in that: A processing tool is installed on the gantry (4), and a clamping tool is installed on the rectangular cylinder (1); The processing tool comprises a transverse shifter (5), a fixed tool is mounted on the transverse shifter (5), and two angle-adjustable tools are symmetrically mounted on the fixed tool; The clamping device comprises a front and back double-sided clamp installed on a rectangular cylinder (1), a disassembler located below the front and back double-sided clamp, and a stable structure matching the front and back double-sided clamp; The fixed tool comprises a central hydraulic cylinder (6), and a fixed turning tool (7) is installed at the telescopic end of the central hydraulic cylinder (6); Each of the angle-adjustable tools comprises a rotating joint, the rotating joint being mounted on the side wall surface of the fixed end of the central hydraulic cylinder (6), a distance-adjusting hydraulic cylinder (8) being mounted on one end of the rotating joint, an edge hydraulic cylinder (9) being mounted on the telescopic end of the distance-adjusting hydraulic cylinder (8), and an angle-adjustable turning tool (10) being mounted on the telescopic end of the edge hydraulic cylinder (9); The front and back double-sided clamp comprises two reversing motors (14), the two reversing motors (14) are symmetrically mounted on the inner wall surface of the rectangular cylinder (1), the driving ends of the two reversing motors (14) are mounted with a basic ring seat, two rotating disks are symmetrically mounted on the basic ring seat, and the two rotating disks are both mounted with a clamp, and the clamp and the rotating disk are connected to each other via a plurality of bolts (15); The basic ring seat comprises a ring (16), two rotary drive motors (17) are mounted on the inner wall surface of the ring (16), and the two rotary drive motors (17) are mounted up and down oppositely, and driving ends of the two rotary drive motors (17) are mounted with driving gears (18), two annular grooves are formed on the inner wall surface of the ring (16), and the two rotating disks are symmetrically mounted on the annular grooves, respectively, and two insertion grooves are symmetrically formed on the outer wall surface of the ring (16), and two positioning holes are formed on the outer wall surface of the ring (16) at a position between the two insertion grooves; The unloader comprises two mounting grooves symmetrically arranged on the inner wall surface of the rectangular cylinder (1), the two mounting grooves are both provided with a moving assembly, the moving assembly is provided with a connecting plate (26), two fixed plug rods (27) are provided on the side wall surface of the connecting plate (26), a clamping hydraulic cylinder (28) is provided on the lower wall surface of each of the fixed plug rods (27), and an adjusting rod (29) is provided on the telescopic end of the clamping hydraulic cylinder (28); The moving assembly comprises a lifting drive motor (30), the lifting drive motor (30) being mounted on the inner bottom surface of the installation groove, a screw rod (31) being mounted on the driving end of the lifting drive motor (30), a moving block (32) being movably sleeved on the screw rod (31) via a thread, the moving block (32) being movably fitted on the inner wall surface of the installation groove, an inserted hydraulic cylinder (33) being mounted on the moving block (32), an electric turntable (34) being mounted on the telescopic end of the inserted hydraulic cylinder (33), and the connecting plate (26) being mounted on the electric turntable (34); The stable structure comprises two L-shaped frames (35) symmetrically mounted on the inner wall of the rectangular cylinder (1), two positioning cylinders (36) are mounted on opposite inner walls of the rectangular cylinder (1), the telescopic ends of the two positioning cylinders (36) are movably inserted on the L-shaped frames (35), and the telescopic ends of the two positioning cylinders (36) are movably inserted on the two positioning holes respectively, and the driving ends of the two reversing motors (14) are movably inserted on the two L-shaped frames (35) respectively; The stabilizing structure further comprises two baffles (37) symmetrically and movably extending through the side wall of the rectangular cylinder (1); the two baffles (37) are movably inserted into the two insertion slots respectively; two driving cylinders (38) are installed on each of the baffles (37); and the two driving cylinders (38) are fixedly installed on the outer wall of the rectangular cylinder (1).

2. The large valve body multi-angle processing automatic lathe according to claim 1 is characterized in that: The rotary joint comprises a U-shaped fixing seat (11), the U-shaped fixing seat (11) being mounted on the side wall surface of the fixed end of the central hydraulic cylinder (6), an adjusting motor (12) being mounted on the U-shaped fixing seat (11), a driving end of the adjusting motor (12) being movably inserted on the U-shaped fixing seat (11), a rotating frame (13) being fixedly mounted on the driving end of the adjusting motor (12), and the distance adjusting hydraulic cylinder (8) being mounted on the rotating frame (13).

3. The large valve body multi-angle processing automatic lathe according to claim 1 is characterized in that: Each of the rotating disks comprises a rotating disk cover (19), the rotating disk cover (19) being movably mounted on the annular groove, an inner gear ring (20) being mounted on the inner wall surface of the rotating disk cover (19), the inner gear ring (20) being meshed with the driving gear (18), and a plurality of internally threaded sleeves (21) being mounted on the rotating disk cover (19) in a circular array.

4. The large valve body multi-angle processing automatic lathe according to claim 3 is characterized in that: The clamp comprises a connecting plate (22), the connecting plate (22) is provided with through holes corresponding to the plurality of internally threaded sleeves (21), the bolt (15) movably penetrates the through holes and is threadedly inserted into the internally threaded sleeve (21), the connecting plate (22) is provided with four slots in a circular array, a circular slot is provided at the center of the connecting plate (22), four clamping motors (23) are installed in a circular array on the inner bottom surface of the circular slot, a rotating rod (24) is movably inserted into the four slots, one end of the rotating rod (24) is installed on the driving end of the clamping motor (23), the rotating rod (24) is threaded, a clamping block (25) is movably installed on the four slots, and the clamping block (25) is threadedly sleeved on the rotating rod (24).

5. The large valve body multi-angle processing automatic lathe according to claim 4 is characterized in that: A blocking cover (39) is installed on the circular groove.

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