A CNC lathe for flange processing

Abstract

The present invention relates to the field of flange processing technology, and proposes a CNC lathe for flange processing, wherein the center of the flange has a flange hole, comprising a rotating member; a first movable member and a second movable member are both movably arranged on the rotating member, and move closer to or farther away from each other after movement; a third movable member is slidably arranged on the first movable member, the third movable member has a first abutting surface, the first abutting surface faces the second movable member, after the first movable member and the second movable member approach each other, the second movable member pushes the third movable member to move, and the third movable member also has a first guide bevel; a first movable clamping member is slidably arranged on the first movable member, the first movable clamping member has a third guide bevel, the first guide bevel abuts the third guide bevel, and after the third movable member moves, it pushes the first movable clamping member to move and abut against the wall of the flange hole. Through the above technical solution, the technical problem that the lathe equipment for flange processing in the related art cannot realize the processing of various types of flanges is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of flange processing, and in particular to a numerically controlled lathe for flange processing. Background Art

[0002] Flanges are important components used in pipeline systems to connect pipes, valves, or other equipment. They are widely used in industries such as chemical, petroleum, electric power, and shipbuilding. Flange processing types mainly include the following: 1. Slip-on flange; 2. Butt-weld flange; 3. Threaded flange; 4. Socket-weld flange; 5. Loose flange; 6. Flange cover; 7. Special-shaped flange. Flange processing types vary, and each flange has its own specific application scenarios and advantages and disadvantages. Flange processing requires lathe turning to produce a smooth surface. Many flanges have multiple surfaces that require processing. With existing technology, it is difficult to find suitable equipment that can process all types of flanges. Therefore, it is urgent to design a lathe that can process all types of flanges. Summary of the Invention

[0003] The present invention provides a CNC lathe for flange processing, which solves the technical problem that flange processing lathe equipment in the related art cannot process various types of flanges.

[0004] The technical solutions of the present invention are as follows:

[0005] A numerically controlled lathe for machining a flange, wherein the center of the flange has a flange hole, comprising:

[0006] a rotating member, the rotating member being movably arranged;

[0007] a first moving member and a second moving member, wherein the first moving member and the second moving member are both adjustable in position and move along with the rotating member, and move closer to or farther from each other;

[0008] a third moving member, the third moving member being slidably disposed on the first moving member, the third moving member having a first abutting surface, the first abutting surface facing the second moving member, and the second moving member pushing the third moving member to move after the first moving member and the second moving member approach each other, the third moving member further having a first guiding inclined surface;

[0009] The first movable card is slidably arranged on the first movable member, the first movable card has a third guide slope, the first guide slope abuts against the third guide slope, and after the third movable member moves, it pushes the first movable card to move and abut against the hole wall of the flange hole.

[0010] As a further technical solution, it also includes:

[0011] A first elastic member, wherein one end of the first elastic member acts on the third movable member, and the other end of the first elastic member acts on the first movable member to provide a restoring force for the third movable member.

[0012] As a further technical solution, it also includes:

[0013] a fourth moving member, the fourth moving member being slidably disposed on the second moving member, the fourth moving member having a second abutting surface, the first abutting surface and the second abutting surface being disposed opposite to each other, such that when the first moving member and the second moving member approach each other, the first abutting surface and the second abutting surface abut against each other; the fourth moving member further having a second guiding inclined surface;

[0014] The second movable card is slidably arranged on the second movable card, the second movable card has a fourth guide slope, the second guide slope abuts against the fourth guide slope; after the fourth movable member moves, it pushes the second movable card to move and abut against the hole wall of the flange.

[0015] As a further technical solution, it also includes:

[0016] A second elastic member, one end of the second elastic member acts on the fourth moving member, and the other end acts on the second moving member to provide a restoring force for the fourth moving member.

[0017] As a further technical solution, the first moving member and the second moving member are both cylindrical and have a diameter smaller than the diameter of the flange hole. The moving directions of the first moving member and the second moving member relative to the rotating member are parallel to the axial direction of the flange; the moving direction of the third moving member relative to the first moving member is parallel to the axial direction of the flange, and the moving direction of the fourth moving member relative to the second moving member is parallel to the axial direction of the flange; the moving direction of the first moving card relative to the first moving member is along the radial direction of the flange, and the moving direction of the second moving card relative to the second moving member is along the radial direction of the flange.

[0018] As a further technical solution, the first movable card member and the second movable card member are both arranged in a plurality of circles.

[0019] As a further technical solution, a feeding assembly is also included, and the feeding assembly includes:

[0020] A material guide trough, the material guide trough being arranged on one side of the first moving member and the second moving member, the material guide trough having a material channel inclined downward, and the material channel having a discharge port;

[0021] A sliding baffle, the sliding baffle being slidably arranged at the discharge port;

[0022] The sliding connecting plate is slidably arranged, and the sliding baffle and the sliding connecting plate are respectively located on both sides of the first moving member.

[0023] As a further technical solution, the sliding connecting plate has a material receiving groove, which faces the sliding baffle and is used to accommodate the side of the flange.

[0024] As a further technical solution, the sliding connecting plate further comprises a guide portion, one end of the guide portion faces the sliding baffle, and the other end leads to the material receiving trough.

[0025] As a further technical solution, the material channels are two parallel and symmetrically arranged, with a gap between the two material channels, and further comprising:

[0026] The first cutter head and the second cutter head are both movably arranged and are respectively located on both sides of the sliding plate.

[0027] The working principle and beneficial effects of the present invention are:

[0028] In the present invention, by providing a rotating member, a first movable member and a second movable member, the flange can be accurately positioned in an appropriate position to ensure the accuracy of processing. The rotating member provides a rotational basis for the entire equipment, ensuring that the flange can be processed stably. The first movable member and the second movable member adjust their positions by moving, ensuring that the flange can be accurately clamped in an appropriate position. By providing a third movable member and a first movable clamping member, the position of the clamping member can be automatically adjusted according to the size of the flange hole, ensuring that flanges of different sizes can be firmly fixed. The third movable member has a first abutting surface and a first guide bevel, and can automatically adjust its position according to the movement of the second movable member. The first movable clamping member has a third guide bevel, which cooperates with the first guide bevel to ensure that the first movable clamping member can automatically adjust its position according to the movement of the third movable member and abut against the hole wall of the flange hole. By automatically adjusting the position of the clamping member, flanges of different sizes can be quickly adapted, thereby improving processing efficiency. Automatically adjusting the position of the first movable clamp can quickly adapt to flanges of different sizes, reducing adjustment time and improving processing efficiency. Compared with the prior art of using a three-jaw chuck to fix the outer edge of the flange, not only the impact on the required processing surface of the flange is reduced, so that both sides of the flange can be turned, but also the technical problem of being able to process various types of flanges is well achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0030] Figure 1 It is a schematic diagram of the structure of the present invention;

[0031] Figure 2 for Figure 1 Middle A is a schematic diagram of a partially enlarged structure;

[0032] Figure 3 This is a schematic structural diagram of the first moving member and the second moving member in the present invention;

[0033] Figure 4 A schematic side view of the first moving member and the second moving member in the present invention;

[0034] Figure 5 for Figure 4 Schematic diagram of the BB cross-section three-dimensional structure;

[0035] In the figure: rotating member-1, first moving member-2, second moving member-3, third moving member-4, first abutting surface-401, first guide slope-402, first moving clamping member-5, third guide slope-501, first elastic member-6, fourth moving member-7, second abutting surface-701, second guide slope-702, second moving clamping member-8, fourth guide slope-801, feeding assembly-9, material guide trough-901, material channel-902, discharge port-903, sliding baffle-904, sliding connecting plate-905, material receiving trough-906, guide part-907, second elastic member-10, first cutter head-11, second cutter head-12. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific embodiments of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other embodiments can be obtained based on these drawings without inventive work.

[0037] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0038] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0039] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0040] Reference Figures 1 to 5 As shown, this embodiment proposes a CNC lathe for flange processing, the center of the flange has a flange hole, including a rotating part 1, the rotating part 1 is movably set; a first moving part 2 and a second moving part 3, the first moving part 2 and the second moving part 3 are both positionally adjustable and set on the rotating part 1 and move with the rotating part 1, and move closer to or away from each other after moving; a third moving part 4 is slidably set on the first moving part 2, the third moving part 4 has a first abutting surface 401, the first abutting surface 401 faces the second moving part 3, after the first moving part 2 and the second moving part 3 approach each other, the second moving part 3 pushes the third moving part 4 to move, and the third moving part 4 also has a first guide inclined surface 402; a first moving card 5 is slidably set on the first moving part 2, the first moving card 5 has a third guide inclined surface 501, the first guide inclined surface 402 abuts against the third guide inclined surface 501, and after the third moving part 4 moves, it pushes the first moving card 5 to move and abut against the hole wall of the flange hole.

[0041] In the present embodiment, by providing a rotating member 1, a first movable member 2, and a second movable member 3, the flange can be accurately positioned in a suitable position to ensure the accuracy of processing. The rotating member 1 provides a rotational basis for the entire device, ensuring that the flange can be processed stably. The first movable member 2 and the second movable member 3 adjust their positions by moving, ensuring that the flange can be accurately clamped in a suitable position. By providing a third movable member 4 and a first movable clamping member 5, the position of the clamping member can be automatically adjusted according to the size of the flange hole, ensuring that flanges of different sizes can be firmly fixed. The third movable member 4 has a first abutting surface 401 and a first guide bevel 402, which can automatically adjust its position according to the movement of the second movable member 3. The first movable clamping member 5 has a third guide bevel 501, which cooperates with the first guide bevel 402 to ensure that the first movable clamping member 5 can automatically adjust its position according to the movement of the third movable member 4 and abut against the hole wall of the flange hole. By automatically adjusting the position of the clamping member, flanges of different sizes can be quickly adapted to, thereby improving processing efficiency. Automatically adjusting the position of the first movable clamp 5 can quickly adapt to flanges of different sizes, reducing adjustment time and improving processing efficiency. Compared with the prior art of using a three-jaw chuck to fix the outer edge of the flange, not only the impact on the required processing surface of the flange is reduced, so that both sides of the flange can be turned, but also the technical problem of being able to process various types of flanges can be well achieved.

[0042] When the first moving member 2 and the second moving member 3 approach each other, the second moving member 3 pushes the third moving member 4 to move. Because the first abutting surface 401 of the third moving member 4 faces the second moving member 3, the third moving member 4 slides along the first moving member 2 under the push of the second moving member 3. At the same time, the first guiding slope 402 of the third moving member 4 abuts the third guiding slope 501 of the first moving clamping member 5, thereby pushing the first moving clamping member 5 to move, causing the first moving clamping member 5 to abut against the wall of the flange hole, thereby fixing the flange. The first guiding slope 402 and the third guiding slope 501 can be flat or conical surfaces.

[0043] In this way, the CNC lathe can utilize the rotating member 1 to drive the flange to rotate, and simultaneously utilize the cooperation of the first movable member 2, the second movable member 3, the third movable member 4, and the first movable clamping member 5 to achieve the fixation and processing of flanges of different types and sizes, thereby solving the problem in the prior art that it is difficult to find suitable equipment to process all types of flanges. Whether it is a flat welding flange, butt welding flange, threaded flange, socket welding flange, loose flange, flange cover, or special-shaped flange, different processing types of flanges can be effectively turned by this CNC lathe, ensuring the versatility and adaptability of the processing and improving the processing efficiency and processing quality.

[0044] Furthermore, a first elastic member 6 is included. One end of the first elastic member 6 acts on the third moving member 4 , and the other end acts on the first moving member 2 to provide a restoring force for the third moving member 4 .

[0045] In the present embodiment, designed the first elastic member 6, when the first moving member 2 and the second moving member 3 were away from each other, the first elastic member 6 could promote the 3rd moving member 4 to reset, guaranteed that the 3rd moving member 4 could automatically get back to the initial position. The first elastic member 6 provides restoring force for the 3rd moving member 4, guaranteed that when not needing the clamping flange, could automatically get back to the initial position. Through the automatic reset mechanism, reduced the needs of manual adjustment, improved processing efficiency. The automatic reset mechanism reduced the demand of manual intervention, reduced the processing preparation time, improved processing efficiency. The design of the first elastic member 6 guaranteed that when not needing the clamping flange, the 3rd moving member 4 could automatically get back to the initial position, improved the safety of equipment. When not needing the clamping flange, the 3rd moving member 4 could automatically get back to the initial position, avoided unnecessary interference, improved safety.

[0046] Furthermore, the present invention further comprises a fourth moving member 7, which is slidably disposed on the second moving member 3, and has a second abutting surface 701. The first abutting surface 401 and the second abutting surface 701 are arranged relative to each other. After the first moving member 2 and the second moving member 3 approach each other, the first abutting surface 401 and the second abutting surface 701 abut each other; the fourth moving member 7 also has a second guide slope 702; a second moving clamping member 8 is slidably disposed on the second moving member 3, and has a fourth guide slope 801. The second guide slope 702 abuts the fourth guide slope 801; after the fourth moving member 7 moves, it pushes the second moving clamping member 8 to move and abut against the hole wall of the flange. Wherein, the second guide slope 702 and the fourth guide slope 801 can be planes or conical surfaces.

[0047] In the present embodiment, by arranging the fourth moving member 7 and the second moving clamping member 8, the flange can be positioned from two directions, thereby ensuring the stability and precision of the flange during processing. The fourth moving member 7 has a second abutting surface 701 and a second guiding bevel 702, which are arranged relative to the first abutting surface 401 of the third moving member 4, and can provide stable support when the first moving member 2 and the second moving member 3 are close to each other. The second moving clamping member 8 has a fourth guiding bevel 801, which cooperates with the second guiding bevel 702 to ensure that the second moving clamping member 8 can automatically adjust its position according to the movement of the fourth moving member 7 and abut against the hole wall of the flange hole. Through the two-way positioning mechanism, the position of the flange can be more accurately controlled, thereby improving processing accuracy. The two-way positioning mechanism can more accurately control the position of the flange, thereby reducing processing error and improving processing accuracy. Through the two-way positioning mechanism, the flanges of different sizes and shapes can be better adapted to, thereby improving the adaptability of the equipment. The two-way positioning mechanism can better adapt to, thereby reducing adjustment time and improving processing efficiency.

[0048] Furthermore, a second elastic member 10 is included. One end of the second elastic member 10 acts on the fourth moving member 7 , and the other end acts on the second moving member 3 to provide a restoring force for the fourth moving member 7 .

[0049] In the present embodiment, designed the second elastic member 10, when the first moving member 2 and the second moving member 3 were away from each other, the second elastic member 10 could promote the 4th moving member 7 to reset, guaranteed that the 4th moving member 7 could automatically get back to the initial position. The second elastic member 10 provides restoring force for the 4th moving member 7, guaranteed that when not needing the clamping flange, could automatically get back to the initial position. By the automatic reset mechanism, reduced the needs of manual adjustment, improved processing efficiency. The automatic reset mechanism reduced the demand of manual intervention, reduced the processing preparation time, improved processing efficiency. The design of the second elastic member 10 guaranteed that when not needing the clamping flange, the 4th moving member 7 could automatically get back to the initial position, improved the safety of equipment. When not needing the clamping flange, the 4th moving member 7 could automatically get back to the initial position, avoided unnecessary interference, improved safety.

[0050] Furthermore, the first moving member 2 and the second moving member 3 are both cylindrical, and their diameters are smaller than the diameter of the flange hole. The moving directions of the first moving member 2 and the second moving member 3 relative to the rotating member 1 are parallel to the axial direction of the flange; the moving direction of the third moving member 4 relative to the first moving member 2 is parallel to the axial direction of the flange, and the moving direction of the fourth moving member 7 relative to the second moving member 3 is parallel to the axial direction of the flange; the moving direction of the first moving card 5 relative to the first moving member 2 is along the radial direction of the flange, and the moving direction of the second moving card 8 relative to the second moving member 3 is along the radial direction of the flange.

[0051] In the present embodiment, the diameter of the first moving member 2 and the second moving member 3 is less than the diameter of the flange hole, which ensures that the flange hole can be accurately aligned when clamping the flange, and improves processing accuracy. The cylindrical design and diameter of the first moving member 2 and the second moving member 3 are less than the diameter of the flange hole, which ensures that the flange hole can be accurately aligned when clamping the flange. The moving direction of the first moving member 2 and the second moving member 3 is parallel to the axial direction of the flange, which ensures that the flange hole can be more stable when moving, and reduces vibration during processing. The moving direction parallel to the axial direction of the flange ensures that the flange can be more stable when moving, and reduces vibration during processing. The moving direction of the third moving member 4 and the fourth moving member 7 is also parallel to the axial direction of the flange, which ensures that the flange can be more stable when clamping the flange, and improves processing accuracy. The moving direction of the first moving clamp 5 and the second moving clamp 8 is along the radial direction of the flange, which ensures that the position of the clamp can be flexibly adjusted when clamping flanges of different sizes. The moving direction along the radial direction of the flange ensures that the position of the clamp can be flexibly adjusted when clamping flanges of different sizes, and improves the adaptability of the equipment.

[0052] Furthermore, the first movable clamping member 5 and the second movable clamping member 8 are both arranged in a plurality of circles.

[0053] In this embodiment, by arranging the first movable clamping member 5 and the second movable clamping member 8 in a plurality of circular arrangements, it is possible to ensure that the flange is evenly clamped during the processing, thereby improving the processing accuracy and stability. The circumferential arrangement of the first movable clamping member 5 and the second movable clamping member 8 ensures that the flange is evenly clamped during the processing, thereby improving the processing accuracy and stability. By arranging multiple clamping members in a circular arrangement, it is possible to better adapt to flanges of different sizes and shapes, thereby improving the adaptability of the equipment. By arranging multiple clamping members in a circular arrangement, it is possible to better adapt to flanges of different sizes and shapes, thereby improving the adaptability of the equipment. By arranging multiple clamping members in a circular arrangement, the pressure on a single clamping member is reduced, the adjustment time is reduced, and the processing efficiency is improved.

[0054] Furthermore, it also includes a feeding component 9, which includes a material guide trough 901, which is arranged on one side of the first moving member 2 and the second moving member 3, and the material guide trough 901 has a material channel 902 inclined downward, and the material channel 902 has a discharge port 903; the sliding baffle 904 is slidingly arranged at the discharge port 903; the sliding connecting plate 905 is slidingly arranged, and the sliding baffle 904 and the sliding connecting plate 905 are respectively located on both sides of the first moving member 2.

[0055] In this embodiment, by providing a feeding assembly 9, an automated feeding function is achieved, manual operation is reduced, and processing efficiency is improved. The material channel 902 of the guide trough 901 is inclined downward to ensure that the flange can slide smoothly into the processing position. The sliding baffle 904 can control the time when the flange enters the processing position to ensure that only one flange enters the processing area at a time. The sliding connection plate 905 is used in conjunction with the sliding baffle 904 to ensure that the flange can smoothly transition to the processing position, and after the first movable clamp 5 and the second movable clamp 8 of the first movable member 2 and the second movable member 3 complete the fixing of the flange, the sliding connection plate 905 moves away from the flange to avoid interference with the processing to achieve giving way. Through the automated feeding function, the time of manual operation is reduced and processing efficiency is improved.

[0056] Furthermore, the sliding connecting plate 905 has a material receiving groove 906, which faces the sliding baffle 904 and is used to accommodate the side of the flange.

[0057] In this embodiment, the provision of a receiving chute 906 ensures a smooth transition of the flange to the processing position, reduces vibration during movement, and improves processing accuracy. The provision of a receiving chute 906 to accommodate the side of the flange ensures accurate positioning of the flange when entering the processing position, improving processing accuracy. The receiving chute 906 can also be provided with a buffer layer, which reduces collisions between the flange and other components during movement, thereby reducing damage.

[0058] Furthermore, the sliding connecting plate 905 also has a guide portion 907 , one end of the guide portion 907 faces the sliding baffle 904 , and the other end leads to the material receiving trough 906 .

[0059] In this embodiment, the provision of guide portion 907 ensures a smooth transition of the flange to the receiving chute 906, reducing vibration of the flange during movement and improving machining accuracy. The provision of guide portion 907 reduces the risk of the flange colliding with other components during movement, thus reducing damage.

[0060] Furthermore, the material channels 902 are two parallel and symmetrically arranged with a gap between them, and further include a first cutter head 11 and a second cutter head 12 . The first cutter head 11 and the second cutter head 12 are both movably arranged and are respectively located on both sides of the sliding plate 905 .

[0061] In this embodiment, by providing two parallel and symmetrical material channels 902, and the corresponding first and second cutting heads 11 and 12, two flanges can be processed simultaneously, significantly improving processing efficiency. The two material channels and corresponding cutting heads enable simultaneous processing of two flanges, significantly improving processing efficiency. The parallel and symmetrical arrangement of material channels 902 optimizes the spatial layout of the equipment, making the entire device more compact and space-saving. By simultaneously processing two flanges, equipment utilization is improved and waiting time is reduced.

[0062] In this embodiment, there is a gap between the two material channels 902, the first movable clamp 5 on the first movable member 2 can fix one flange, and the second movable clamp 8 on the second movable member 3 can fix the other flange, and there is also a gap between the two flanges, so that the four sides of the two flanges can be turned, and a certain surface will not be unable to be turned because the two flanges are fixed at the same time, thereby greatly improving the turning efficiency.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A CNC lathe for flange processing, wherein the center of the flange has a flange hole, characterized in that: include: A rotating member (1), wherein the rotating member (1) is movably arranged; A first moving member (2) and a second moving member (3), wherein the first moving member (2) and the second moving member (3) are both arranged on the rotating member (1) in an adjustable manner and move along with the rotating member (1), and move closer to or farther from each other after movement; a third moving member (4), the third moving member (4) being slidably disposed on the first moving member (2), the third moving member (4) having a first abutting surface (401), the first abutting surface (401) facing the second moving member (3), and after the first moving member (2) and the second moving member (3) approach each other, the second moving member (3) pushes the third moving member (4) to move, and the third moving member (4) further having a first guiding inclined surface (402); A first movable card (5), wherein the first movable card (5) is slidably arranged on the first movable member (2), the first movable card (5) has a third guide inclined surface (501), the first guide inclined surface (402) abuts against the third guide inclined surface (501), and the third movable member (4) moves to push the first movable card (5) to move and abut against the hole wall of the flange hole; a fourth moving member (7), the fourth moving member (7) being slidably disposed on the second moving member (3), the fourth moving member (7) having a second abutting surface (701), the first abutting surface (401) and the second abutting surface (701) being disposed opposite to each other, and after the first moving member (2) and the second moving member (3) are brought close to each other, the first abutting surface (401) and the second abutting surface (701) abut against each other; the fourth moving member (7) further having a second guiding inclined surface (702); A second movable card (8), wherein the second movable card (8) is slidably arranged on the second movable member (3), the second movable card (8) has a fourth guide inclined surface (801), and the second guide inclined surface (702) abuts against the fourth guide inclined surface (801); after the fourth movable member (7) moves, the second movable card (8) is pushed to move and abut against the hole wall of the flange; The first moving member (2) and the second moving member (3) are both cylindrical and have a diameter smaller than the diameter of the flange hole. The moving directions of the first moving member (2) and the second moving member (3) relative to the rotating member (1) are parallel to the axial direction of the flange. The moving direction of the third moving member (4) relative to the first moving member (2) is parallel to the axial direction of the flange. The moving direction of the fourth moving member (7) relative to the second moving member (3) is parallel to the axial direction of the flange. The moving direction of the first moving clamping member (5) relative to the first moving member (2) is along the radial direction of the flange. The moving direction of the second moving clamping member (8) relative to the second moving member (3) is along the radial direction of the flange.

2. A CNC lathe for flange processing according to claim 1, characterized in that: Also includes: A first elastic member (6), one end of the first elastic member (6) acts on the third movable member (4), and the other end acts on the first movable member (2), providing a restoring force for the third movable member (4).

3. A CNC lathe for flange processing according to claim 1, characterized in that: Also includes: A second elastic member (10), one end of the second elastic member (10) acts on the fourth movable member (7), and the other end acts on the second movable member (3), providing a restoring force for the fourth movable member (7).

4. A CNC lathe for flange processing according to claim 1, characterized in that: The first movable card member (5) and the second movable card member (8) are both arranged in a plurality of circles.

5. A CNC lathe for flange processing according to any one of claims 1 to 4, characterized in that: It also includes a feeding assembly (9), which includes: A material guide trough (901), the material guide trough (901) being arranged on one side of the first moving member (2) and the second moving member (3), the material guide trough (901) having a material channel (902) inclined downward, and the material channel (902) having a discharge port (903); A sliding baffle (904), the sliding baffle (904) being slidably disposed at the discharge port (903); A sliding connecting plate (905) is provided for sliding movement, and the sliding baffle (904) and the sliding connecting plate (905) are respectively located on both sides of the first moving member (2).

6. A CNC lathe for flange processing according to claim 5, characterized in that: The sliding connecting plate (905) has a material receiving groove (906), and the material receiving groove (906) faces the sliding baffle (904) and is used to accommodate the side of the flange.

7. A CNC lathe for flange processing according to claim 6, characterized in that: The sliding connecting plate (905) further comprises a guide portion (907), one end of the guide portion (907) faces the sliding baffle (904), and the other end leads to the material receiving trough (906).

8. The CNC lathe for flange processing according to claim 5, characterized in that: The material channels (902) are two parallel and symmetrically arranged, with a gap between the two material channels (902), and further include: The first cutting head (11) and the second cutting head (12) are both movably arranged and are respectively located on both sides of the sliding plate (905).

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