Cutting machine for titanium alloy pipe fitting

Abstract

The invention discloses a cutting machine for titanium alloy pipe fittings, and relates to the field of titanium alloy pipe fitting cutting, the cutting machine comprises a preset base and a preset cutting assembly, the preset cutting assembly which is in butt joint through a hydraulic assembly is installed at the upper end of the preset base, and the pipe fittings making contact with the preset cutting assembly are machined through the preset cutting assembly; an auxiliary positioning piece is arranged at the right end of the preset base, and a reserved guide groove is formed in the inner wall of the auxiliary positioning piece. According to the cutting machine for the titanium alloy pipe fitting, in the driving and rotating process of the auxiliary positioning piece, after self-positioning is achieved through the auxiliary attaching positioning piece in advance, the machined pipe fitting can be driven to rotate along the lower end of the preset cutting assembly; the preset cutting assembly only needs to move downwards by a small distance, so that circumferential cutting work of pipe fittings with different pipe diameters can be achieved, the defect that the pipe fittings are treated in a traditional vertical straight downward cutting mode is overcome, the preset cutting assembly does not need to generate an overlarge cutting distance, and circumferential cutting treatment is achieved while self-positioning is conducted on the pipe fittings.

Description

Technical Field

[0001] The invention relates to the technical field of titanium alloy pipe cutting, in particular to a cutting machine for titanium alloy pipes. Background Art

[0002] Titanium alloy pipe fittings are a popular metal material, and their production and processing steps are also more rigorous, including the cutting of titanium alloy pipe fittings; For example, a cutting machine for pipe processing with publication number CN112439943A comprises a workbench, on which a moving assembly, a supporting assembly, a rotating assembly and a supporting plate are arranged, a cutting assembly is arranged on the upper part of the supporting plate, a pushing assembly is arranged on the lower part, and a positioning plate is arranged on the pushing assembly, through which the pipe is placed, and the position of the pipe is adjusted, and the position adjustment of the cutting knife is coordinated, so as to adapt to the processing of pipes of different diameters; the pipe is moved by the moving assembly to contact with the pushing assembly, and the positioning support is provided by the positioning plate to improve the stability of the position of the end of the pipe; the cutting is performed by the cutting assembly, and the pipe is rotated by the rotating assembly, so that the cutting assembly cuts around the pipe to cut out an annular workpiece; after each cutting is completed, the moving plate moves to the left by the action of the cam, the pushing rod returns to its position, and the annular workpiece is pushed off the positioning plate to complete the unloading; Another example is a metal pipe cutting machine with publication number CN117359011A. It includes an operating table, support columns are arranged on both sides of the top of the operating table, a push rod is arranged between the two support columns, a cylinder is arranged at the bottom of the push rod, a cutting piece is arranged at the bottom of the cylinder, a clamping assembly is arranged on the inner side of the two support columns, a lifting assembly for moving the clamping assembly up and down is arranged in the support column, a turntable is arranged on the top of the operating table, a driving assembly for rotating the turntable is arranged in the operating table, and a support assembly is arranged on the side wall of the operating table; the clamping assembly can be adjusted up and down by cooperating with the second motor, the lead screw and the threaded sleeve, so that the clamping arm can finally adapt to the clamping of metal pipe equipment with different diameters; through the setting of the support assembly, under the display of the level tube, the height adjustment of the support assembly is achieved by rotating the threaded nail, thereby increasing the stability of the operating table; For example, a pipe cutting machine with the publication number CN105499689A belongs to the field of pipe processing technology. It includes a base, a support frame is fixedly arranged on the left side of the base, a lifter is fixedly arranged on the top of the support frame, a cutting motor is fixedly arranged on the bottom of the lifter, a cutting blade is connected to the cutting motor, a slide rail is fixedly arranged on the right side of the base, a rotating motor and a sliding motor driving the rotating motor to slide along the slide rail are arranged on the slide rail, and a claw is arranged on the rotating motor. The pipe is fixed on the claw, and the pipe is rotated at the same time during cutting, so that the cutting process can be completed without using a large cutting blade, thus avoiding damage to the cutting blade, and improving the cutting efficiency. The cut surface is smooth and meets production needs; in addition, the present invention realizes automatic feeding and cutting through a PLC controller; Most of the above-mentioned prior arts improve the overall structure of the cutting machine. During the processing, the existing titanium alloy pipe cutting machines mostly process the pipes in a vertical cutting manner. The size of the cutting saw must be large enough to cut the cross section of the entire pipe, resulting in low efficiency in the straight up and down operation mode and a large cutting distance. When dealing with large-sized pipes, a circular saw of the same size is required, which has certain limitations in use. Summary of the invention

[0003] The purpose of the present invention is to provide a cutting machine for titanium alloy pipe fittings, so as to solve the problem that the pipe fittings are mostly processed in a vertical cutting manner proposed in the above-mentioned background technology. The size of the cutting saw must be large enough to cut the cross section of the entire pipe fitting, resulting in its straight up and down operation method being inefficient and the cutting distance being large. When dealing with large-sized pipe fittings, it is necessary to use a circular saw of the same large size, etc., which has certain limitations in use.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a cutting machine for titanium alloy pipe fittings, comprising a preset base and a preset cutting assembly, wherein the upper end of the preset base is equipped with a preset cutting assembly docked by a hydraulic assembly, and the contacted pipe fittings are processed by the preset cutting assembly; An auxiliary positioning piece is provided at the right end of the preset base, and the auxiliary positioning piece is rotatably connected to the right end of the preset base, and the outer side of the middle end of the auxiliary positioning piece is docked with the external motor, and can rotate circumferentially along the surface of the preset base. A reserved guide groove is provided on the inner wall of the auxiliary positioning piece, and a return spring is fixedly connected to the inner side of the reserved guide groove, and a counterweight docking piece is docked on the outer side of the return spring, and the counterweight docking piece and the inner side of the reserved guide groove are docked with each other. A self-circular positioning structure is provided on the inner side of the auxiliary positioning piece, and the contacting pipe is positioned in four directions through the self-circular positioning structure. A self-cooling structure is provided on the side of the auxiliary positioning member, and the cutting surface of the preset cutting component is self-cooled by the self-cooling structure.

[0005] Furthermore, the self-circumferential positioning structure is provided with a traction rope, and the traction rope is connected to the counterweight docking piece, and the traction rope passes through the inside of the auxiliary positioning piece, a preset slide groove is opened on the inner side of the auxiliary positioning piece, and a movable connecting piece is nested and installed inside the preset slide groove, and the upper end of the movable connecting piece is connected to the traction rope; The upper end of the movable connecting piece is bonded with a fitting corrugated docking airbag, and the fitting corrugated docking airbag and the inside of the auxiliary positioning piece are docked with each other, the inner wall of the outer end of the movable connecting piece is bonded with an expansion docking airbag, and the outer side of the expansion docking airbag is penetrated and docked with an air supply hose, and the air supply hose and the fitting corrugated docking airbag are connected to each other, and the upper end of the expansion docking airbag is docked with an auxiliary fitting positioning piece.

[0006] Furthermore, a fixed top block is fixedly connected to the upper end of the end of the movable connecting member, and the fixed top block passes through the interior of the fitting corrugated docking airbag, and a reserved resistance member is nested and installed on the upper end of the interior of the fitting corrugated docking airbag, and the outer ends of the reserved resistance member and the fixed top block are fixedly connected with a magnet member, a reserved guide hole is opened in the interior of the auxiliary positioning member, and the reserved guide hole and the reserved resistance member are penetrated and docked.

[0007] Furthermore, during the process of the auxiliary positioning member being rotated by force, the four counterweight docking members distributed at equal angles at its inner end are subjected to centrifugal force to form a sliding structure along the reserved guide groove, and the counterweight docking member drives the movable connecting member to move upward along the inside of the auxiliary positioning member through the traction rope; The upward movable connecting piece contacts the fitting corrugated docking airbag and applies pressure synchronously, so that air is supplied to the inside of the expansion docking airbag through the air supply hose. The pressurized and expanded expansion docking airbag pushes the arc-shaped auxiliary fitting positioning piece at the upper end to move upward synchronously.

[0008] Furthermore, the fixed top block and the movable connecting part are an integrated structure, and when the movable connecting part is forced to move upward, it will drive the fixed top block to move upward. In conjunction with the repulsive forces of the same names of the magnetic parts, the reserved resistance part in contact will move upward along the inside of the fitting corrugated docking airbag.

[0009] Furthermore, during the process of the reserved resistance member being forced to move upward, the auxiliary positioning member is rotated by centrifugal force to move outward along the reserved guide hole in a regular reciprocating manner.

[0010] Furthermore, the self-cooling structure is provided with a liquid storage cavity, and the liquid storage cavity is opened inside the outer wall of the auxiliary positioning part, and a movable resistance part is nested and installed on the inner side of the liquid storage cavity, a supply through pipe is penetrated and docked on the outer side of the auxiliary positioning part, and the supply through pipe is connected to the inner side of the liquid storage cavity, and the inner wall of the supply through pipe is bonded with a fitting seal.

[0011] Furthermore, the inner end of the movable resistance member is in a sloped structure, and the movable resistance members fit together along the inside of the liquid storage cavity. As the reserved resistance member is resisted by centrifugal force, the movable resistance member is pushed to form a sliding structure along the inside of the liquid storage cavity.

[0012] Furthermore, the supply through pipe is provided with four equal angles on the inner side of the auxiliary positioning piece, and the inner wall of the supply through pipe is bonded and connected with fitting seals distributed at equal angles, and the fitting seals fit each other.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The cutting machine for titanium alloy pipe fittings is provided with a self-positioning pipe fitting docking structure. After the pipe fittings to be processed are placed inside the auxiliary positioning piece, during the driving and rotating process of the auxiliary positioning piece, after the self-positioning is achieved in advance by the auxiliary fitting positioning piece, the processed pipe fittings can be driven to rotate along the lower end of the preset cutting component, so that the preset cutting component only needs to move down a small distance to achieve the circumferential cutting of pipe fittings with different diameters, avoiding the disadvantages of the traditional vertical straight down cutting method for processing pipe fittings, and no excessive cutting distance is required for the preset cutting component, and the circumferential cutting processing is achieved while the pipe fittings are self-positioned, thereby improving the practicality of the device; A self-circumferential positioning structure is provided. When the auxiliary positioning piece is rotated by a preset driving motor, the four counterweight docking pieces at the inner end thereof with equal angles will be pressed and moved inward along the reserved guide groove by the centrifugal force, and the counterweight docking piece will drive the movable connecting piece to move upward along the inside of the auxiliary positioning piece through the traction rope, and the fitting corrugated docking airbag contacted by the upward movable connecting piece will be pressurized synchronously, so that the air supply is processed to the inside of the expansion docking airbag through the air supply hose, and the expansion docking airbag that is inflated by pressure pushes the arc-shaped auxiliary fitting positioning piece at the upper end to move upward synchronously, and the inner wall of the pipe fitting in contact is self-positioned in four directions by the arc-shaped auxiliary fitting positioning piece, without any manual operation steps by the user; Furthermore, a self-cooling structure is provided. When the movable connecting part is forced to move upward, it will drive the fixed top block to move upward to cooperate with the repulsive force of the same name of the magnetic part. The contacted reserved resistance part will move upward along the inside of the fitting corrugated docking airbag, and the reserved resistance part will cooperate with the rotational centrifugal force of the auxiliary positioning part to move reciprocally outward along the reserved guide hole in a regular position. The reserved resistance part reciprocates the inner end of the inclined movable resistance part to push the movable resistance part to form reciprocating pressure along the inside of the liquid storage cavity. The supply pipe in a self-closed state stably supplies liquid along the cutting surface of the preset cutting component, so that the temperature of the cutting surface is reduced, and the cutting waste formed is knocked off to avoid splashing to the outside of the equipment, thereby protecting the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of a half-cut three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of a half-cut three-dimensional structure of an auxiliary positioning member of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the partially enlarged structure; Figure 5 This is a schematic diagram of the three-dimensional structure of the auxiliary laminating and positioning member of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the movable connecting member of the present invention; Figure 7 A schematic diagram of the three-dimensional structure of the through pipe is provided for the present invention; Figure 8 It is a schematic diagram of a half-cut three-dimensional structure of a movable conflicting member of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the preset cutting assembly of the present invention.

[0015] In the figure: 1. Preset base; 2. Preset cutting assembly; 3. Auxiliary positioning member; 4. Reserved guide groove; 5. Counterweight docking member; 6. Return spring; 7. Towing rope; 8. Active connecting member; 9. Fitting corrugated docking airbag; 10. Air supply hose; 11. Inflatable docking airbag; 12. Auxiliary fitting positioning member; 13. Fixed top block; 14. Reserved resistance member; 15. Magnetic member; 16. Reserved guide hole; 17. Liquid storage cavity; 18. Active resistance member; 19. Supply through pipe; 20. Fitting sealing member. DETAILED DESCRIPTION

[0016] 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.

[0017] Example 1: Please refer to Figure 1-9 The present invention provides the following technical solutions: a cutting machine for titanium alloy pipe fittings, comprising a preset base 1, a preset cutting assembly 2, an auxiliary positioning member 3, a reserved guide groove 4, a counterweight docking member 5, a reset spring 6, a traction rope 7, a movable connecting member 8, a fitting corrugated docking airbag 9, an air supply hose 10, an expansion docking airbag 11, an auxiliary fitting positioning member 12, a fixed top block 13, a reserved resistance member 14, a magnet member 15, a reserved guide hole 16, a liquid storage cavity 17, a movable resistance member 18, a supply through pipe 19, and a fitting sealing member 20; The upper end of the preset base 1 is equipped with a preset cutting assembly 2 connected by a hydraulic assembly, and the contacted pipe fittings are processed by the preset cutting assembly 2; An auxiliary positioning member 3 is provided at the right end of the preset base 1, and the auxiliary positioning member 3 is rotatably connected to the right end of the preset base 1, and the outer side of the middle end of the auxiliary positioning member 3 is docked with the external motor, and can rotate circumferentially along the surface of the preset base 1. A reserved guide groove 4 is provided on the inner wall of the auxiliary positioning member 3, and a return spring 6 is fixedly connected to the inner side of the reserved guide groove 4, and a counterweight docking member 5 is docked on the outer side of the return spring 6, and the counterweight docking member 5 is docked with the inner side of the reserved guide groove 4. A self-circular positioning structure is provided on the inner side of the auxiliary positioning member 3, and the contacting pipe fittings are positioned in four directions through the self-circular positioning structure; The self-circumferential positioning structure is provided with a traction rope 7, and the traction rope 7 is docked with the counterweight docking piece 5, and the traction rope 7 passes through the inside of the auxiliary positioning piece 3, and a preset slide groove is opened on the inner side of the auxiliary positioning piece 3, and a movable connecting piece 8 is nested and installed inside the preset slide groove, and the upper end of the movable connecting piece 8 is connected with the traction rope 7; the upper end of the movable connecting piece 8 is bonded with a fitting corrugated docking airbag 9, and the fitting corrugated docking airbag 9 is docked with the inside of the auxiliary positioning piece 3, the outer end inner wall of the movable connecting piece 8 is bonded with an expansion docking airbag 11, and the outer side of the expansion docking airbag 11 passes through and docked with an air supply hose 10, and the air supply hose 10 is connected with the fitting corrugated docking airbag 9, and the upper end of the expansion docking airbag 11 is docked with an auxiliary fitting positioning piece 12. The upper end of the end of the movable connecting member 8 is fixedly connected to a fixed top block 13, and the fixed top block 13 passes through the interior of the fitting corrugated docking airbag 9, and a reserved resistance member 14 is nested and installed on the upper end of the interior of the fitting corrugated docking airbag 9, and the outer ends of the reserved resistance member 14 and the fixed top block 13 are fixedly connected with a magnet member 15, and a reserved guide hole 16 is opened inside the auxiliary positioning member 3, and the reserved guide hole 16 and the reserved resistance member 14 are penetrated and docked.

[0018] During the process of the auxiliary positioning member 3 rotating under force, the four counterweight docking members 5 at the inner end thereof, which are distributed at equal angles, are subjected to centrifugal force to form a sliding structure along the reserved guide groove 4, and the counterweight docking member 5 drives the movable connecting member 8 to move upward along the inside of the auxiliary positioning member 3 through the traction rope 7; the upward movable connecting member 8 contacts the fitting corrugated docking airbag 9 and simultaneously applies pressure, so that it supplies air to the inside of the expansion docking airbag 11 through the air supply hose 10, and the expansion docking airbag 11 that is pressurized and expanded pushes the arc-shaped auxiliary fitting positioning member 12 at the upper end to move upward synchronously. The fixed top block 13 and the movable connecting member 8 are an integrated structure, and during the process of the movable connecting member 8 moving upward under force, the fixed top block 13 will be driven to move upward accordingly, and the reserved resistance member 14 in contact will move upward along the inside of the fitting corrugated docking airbag 9 in cooperation with the repulsive force of the same name of the magnetic member 15. During the process of the reserved resistance member 14 moving upward under force, in cooperation with the centrifugal force of the auxiliary positioning member 3, it will reciprocate outward along the reserved guide hole 16 in a regular position. During the process of the auxiliary positioning member 3 being rotated by the preset driving motor, the four counterweight docking members 5 at the inner end thereof with equal angles will be pressed and moved inward along the reserved guide groove 4 by the centrifugal force, and the counterweight docking member 5 will drive the movable connecting member 8 to move upward along the inside of the auxiliary positioning member 3 through the traction rope 7, and the fitting corrugated docking airbag 9 contacted by the upward movable connecting member 8 will be pressurized synchronously, so that the air supply hose 10 is used to supply air to the inside of the expansion docking airbag 11, and the pressurized expansion docking airbag 11 pushes the arc-shaped auxiliary fitting positioning member 12 at the upper end to move upward synchronously, and the arc-shaped auxiliary fitting positioning member 12 performs a four-way inward support self-positioning treatment on the inner wall of the contacted pipe fitting; After the pipe to be processed is placed inside the auxiliary positioning member 3, during the driving and rotating process of the auxiliary positioning member 3, after the auxiliary fitting positioning member 12 is used to realize self-positioning in advance, the processed pipe can be driven to rotate along the lower end of the preset cutting component 2, so that the preset cutting component 2 only needs to move down a small distance to realize the circumferential cutting of pipes with different diameters, avoiding the disadvantages of the traditional vertical straight down cutting method for processing pipes, and there is no need for the preset cutting component 2 to generate an excessively large cutting distance, so that the circumferential cutting processing can be realized while the pipe is self-positioned; Embodiment 2: On the basis of the first embodiment, a self-cooling structure is also disclosed, and its specific structure is as follows: A self-cooling structure is provided on the side of the auxiliary positioning member 3, and the cutting surface of the preset cutting component 2 is self-cooled by the self-cooling structure.

[0019] The self-cooling structure is provided with a liquid storage cavity 17, and the liquid storage cavity 17 is opened inside the outer wall of the auxiliary positioning member 3, and a movable resistance member 18 is nested and installed inside the liquid storage cavity 17, and a supply pipe 19 is connected to the outside of the auxiliary positioning member 3, and the supply pipe 19 is connected to the inner side of the liquid storage cavity 17, and a fitting seal 20 is bonded to the inner wall of the supply pipe 19. The inner end of the movable resistance member 18 is an inclined structure, and the movable resistance members 18 fit together along the inside of the liquid storage cavity 17. As the reserved resistance member 14 is resisted by the centrifugal force, the movable resistance member 18 is pushed to form a sliding structure along the inside of the liquid storage cavity 17. Four supply pipes 19 are provided at equal angles with respect to the inner side of the auxiliary positioning member 3, and the inner wall of the supply pipe 19 is bonded to fit seals 20 distributed at equal angles, and the fitting seals 20 fit together; During the upward movement of the movable connecting part 8, the fixed top block 13 will be driven to move upward to cooperate with the repulsive force of the same name of the magnetic part 15, and the reserved resistance part 14 in contact will move upward along the inside of the fitting corrugated docking airbag 9, and the reserved resistance part 14 will cooperate with the rotational centrifugal force of the auxiliary positioning part 3 to move reciprocally outward along the reserved guide hole 16 in a regular position. The reserved resistance part 14 reciprocates and presses the inner end of the inclined movable resistance part 18 to push the movable resistance part 18 to form reciprocating pressure along the inside of the liquid storage cavity 17, and the supply through pipe 19 in a self-closed state stably supplies liquid along the cutting surface of the preset cutting component 2, so that the temperature of the cutting surface is reduced, and the cutting waste formed is knocked off to avoid splashing to the outside of the equipment, thereby protecting the working environment.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] 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 cutting machine for titanium alloy pipe fittings, comprising a preset base (1) and a preset cutting assembly (2), wherein the preset cutting assembly (2) is mounted on the upper end of the preset base (1) and is connected to the preset cutting assembly via a hydraulic assembly, and the preset cutting assembly (2) is used to process the pipe fittings in contact with the preset cutting assembly; Features: The right end of the preset base (1) is provided with an auxiliary positioning member (3), and the auxiliary positioning member (3) is rotatably connected to the right end of the preset base (1), and the outer side of the middle end of the auxiliary positioning member (3) is docked with the external motor, and can rotate in a circle along the surface of the preset base (1); the inner wall of the auxiliary positioning member (3) is provided with a reserved guide groove (4), and the inner side of the reserved guide groove (4) is fixedly connected with a return spring (6), and the outer side of the return spring (6) is docked with a counterweight docking member (5), and the counterweight docking member (5) and the inner side of the reserved guide groove (4) are docked with each other; the inner side of the auxiliary positioning member (3) is provided with a self-circular positioning structure, and the contacting pipe is positioned in four directions by the self-circular positioning structure; A self-cooling structure is provided on the side of the auxiliary positioning member (3), and a self-cooling treatment is performed on the cutting surface of the preset cutting component (2) through the self-cooling structure.

2. A cutting machine for titanium alloy pipe fittings according to claim 1, characterized in that: The self-circumferential positioning structure is provided with a traction rope (7), and the traction rope (7) and the counterweight docking member (5) are docked with each other, and the traction rope (7) passes through the inside of the auxiliary positioning member (3), and a preset sliding groove is opened on the inner side of the auxiliary positioning member (3), and a movable connecting member (8) is nested and installed inside the preset sliding groove, and the upper end of the movable connecting member (8) is connected to the traction rope (7); The upper end of the movable connecting member (8) is bonded to a fitted corrugated docking airbag (9), and the fitted corrugated docking airbag (9) is docked with the inside of the auxiliary positioning member (3). The inner wall of the outer end of the movable connecting member (8) is bonded to an expansion docking airbag (11), and an air supply hose (10) penetrates and docks the outer side of the expansion docking airbag (11), and the air supply hose (10) and the fitted corrugated docking airbag (9) are connected to each other. The upper end of the expansion docking airbag (11) is docked with an auxiliary fitting positioning member (12).

3. A cutting machine for titanium alloy pipes according to claim 2, characterized in that: The upper end of the end of the movable connecting member (8) is fixedly connected to a fixed top block (13), and the fixed top block (13) penetrates along the interior of the fitted corrugated docking airbag (9), and a reserved abutment member (14) is nested and installed on the upper end of the interior of the fitted corrugated docking airbag (9), and the outer ends of the reserved abutment member (14) and the fixed top block (13) are both fixedly connected to a magnet member (15), and a reserved guide hole (16) is opened inside the auxiliary positioning member (3), and the reserved guide hole (16) and the reserved abutment member (14) penetrate and dock with each other.

4. A cutting machine for titanium alloy pipe fittings according to claim 3, characterized in that: During the process of the auxiliary positioning member (3) rotating under force, the four counterweight docking members (5) at the inner end thereof, which are distributed at equal angles, are subjected to centrifugal force to form a sliding structure along the reserved guide groove (4), and the counterweight docking member (5) drives the movable connecting member (8) to move upward along the inside of the auxiliary positioning member (3) through the traction rope (7); The upwardly moving movable connecting member (8) contacts the fitting corrugated docking airbag (9) and simultaneously applies pressure to the fitting corrugated docking airbag (9), so that the fitting corrugated docking airbag (9) is supplied with air through the air supply hose (10) to the inside of the expansion docking airbag (11). The expansion docking airbag (11) that is expanded under pressure pushes the arc-shaped auxiliary fitting positioning member (12) at the upper end to move upward synchronously.

5. A cutting machine for titanium alloy pipe fittings according to claim 4, characterized in that: The fixed top block (13) and the movable connecting member (8) are an integrated structure, and when the movable connecting member (8) is forced to move upward, it will drive the fixed top block (13) to move upward, and cooperate with the repulsive force of the same name of the magnetic member (15), and the contacting reserved resistance member (14) will move upward along the inside of the fitting corrugated docking airbag (9).

6. A cutting machine for titanium alloy pipes according to claim 5, characterized in that: During the process of the reserved abutment member (14) being forced to move upward, the auxiliary positioning member (3) cooperates with the rotational centrifugal force to reciprocate outward along the reserved guide hole (16) in a regular manner.

7. A cutting machine for titanium alloy pipes according to claim 4, characterized in that: The self-cooling structure is provided with a liquid storage cavity (17), and the liquid storage cavity (17) is opened inside the outer wall of the auxiliary positioning member (3), and a movable resistance member (18) is nested and installed inside the liquid storage cavity (17), a supply through pipe (19) is connected to the outside of the auxiliary positioning member (3), and the supply through pipe (19) and the inside of the liquid storage cavity (17) are connected to each other, and a fitting sealing member (20) is bonded to the inner wall of the supply through pipe (19).

8. A cutting machine for titanium alloy pipes according to claim 7, characterized in that: The inner end of the movable resistance member (18) is in an inclined surface structure, and the movable resistance member (18) fits together along the inside of the liquid storage cavity (17). As the reserved resistance member (14) is resisted by the centrifugal force, the movable resistance member (18) is pushed along the inside of the liquid storage cavity (17) to form a sliding structure.

9. A cutting machine for titanium alloy pipe fittings according to claim 8, characterized in that: The supply through pipe (19) is provided with four equiangularly arranged inner sides of the auxiliary positioning member (3), and the inner wall of the supply through pipe (19) is bonded and connected with equiangularly distributed fitting seals (20), and the fitting seals (20) fit each other.

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