Metal pipe cutting and fixing device

Abstract

The utility model discloses a metal pipe cutting fixing device which comprises a clamping assembly, a fixing frame, a movable column, a first spring, a sealing plug, a sealing block and a rotating piece, an inserting groove is formed in the fixing frame, the movable column is inserted into the inserting groove, the two ends of the first spring are fixed to the movable column and the inner bottom wall of the fixing frame respectively, and the rotating piece is connected with the first spring. The sealing plug is arranged at one end of the movable column, the sealing block is arranged on one side of the fixing frame, a cavity is formed in the fixing frame and communicated with the inserting groove, an air hole is formed in one side of the fixing frame, the sealing block and the air hole are coaxial, and the rotating piece is arranged on one side of the fixing frame. The metal pipe cutting device has the advantages that the clamping assembly is used for providing proper clamping force, pipe deformation is avoided, and the metal pipe cutting device is suitable for cutting metal pipes of different shapes, so that cutting time is shortened, and cutting efficiency and safety are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting, in particular to a cutting and fixing device for metal pipes. Background Art

[0002] The cutting of metal pipes refers to the processing process of dividing metal pipe materials into required sizes and shapes through methods such as machining, plasma cutting, and laser cutting. Different fixtures need to be selected for cutting pipes of different shapes; thin-walled pipes are more likely to be affected by the pressure of the fixture during cutting. If the fixture is not clamped tightly, slipping will occur during cutting, which will cause the saw blade to burst and the pipe orifice to deform. If the fixture is clamped too tightly, the pipe will be deformed, and subsequent processing is required. Moreover, there are various shapes of metal pipes, and most of the existing fixing devices cannot provide appropriate clamping force. Being too tight or too loose will affect the cutting of metal pipes. When cutting metal pipes of different shapes, the fixing device needs to be replaced, which increases the cutting time and affects the cutting efficiency. Summary of the Utility Model

[0003] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and the title of the description of this application, to avoid obscuring the purpose of this part, the abstract, and the title of the description. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0004] In view of the problems existing in the existing cutting and fixing devices for metal pipes, the present utility model is proposed.

[0005] Therefore, the problem to be solved by the present utility model is that most of the existing fixing devices cannot provide appropriate clamping force, being too tight or too loose will affect the cutting of metal pipes. When cutting metal pipes of different shapes, the fixing device needs to be replaced, which increases the cutting time and affects the cutting efficiency.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: a cutting and fixing device for metal pipes, which includes a clamping assembly, including a fixed frame, a movable column, a first spring, a sealing plug, a sealing block, and a rotating member. A slot is opened in the fixed frame, the movable column is inserted into the slot, both ends of the first spring are fixed to the movable column and the inner bottom wall of the fixed frame respectively, the sealing plug is arranged at one end of the movable column, the sealing block is on one side of the fixed frame, a chamber is opened in the fixed frame, the chamber is communicated with the slot, a ventilation hole is opened on one side of the fixed frame, the sealing block and the ventilation hole are coaxial, and the rotating member is arranged on one side of the fixed frame.

[0007] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: the rotating member includes a threaded block, a threaded column, a support block, and a stabilizing plate. The threaded block is fixed to one side of the fixed frame. The threaded column is threadedly connected to the threaded block. The support block is located on one side of the fixed frame. One side of the stabilizing plate is fixed to the support block. The threaded column is rotatably connected to the stabilizing plate.

[0008] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: the rotating member includes a pulley. The pulley is fixed to the outer side of the threaded column. The two pulleys are connected by a belt.

[0009] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: the clamping assembly further includes a support member. The support member includes a positioning column, a support plate, and a fixing block. The positioning column is fixed to one side of the fixed frame. The support plate is movably connected to the outer side of the positioning column. The fixing block is fixed to one end of the positioning column. The sealing block is fixed to the support plate.

[0010] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: the support member further includes a second spring. One end of the second spring is fixed to the support plate, and the other end is fixed to the fixed frame.

[0011] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: the clamping assembly further includes a connecting member provided on one side of the fixed frame, including a rotating column and a rotating sleeve. A first threaded hole is formed in the support plate. One end of the rotating column is threadedly connected to the first threaded hole. The rotating sleeve is sleeved on the outer side of the rotating column.

[0012] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: a block is fixed to one side of the rotating column. A slot corresponding to the block is formed in the rotating sleeve. The block slides in the slot.

[0013] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: the connecting member further includes a connecting block. The connecting block is rotatably connected to the outer sides of the rotating column and the threaded column.

[0014] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, wherein: it further includes a cutting assembly connected to the clamping assembly, including a bracket and a cutting mechanism. The bracket is located on one side of the support block. The cutting mechanism is provided on the bracket.

[0015] As a preferred embodiment of the metal pipe cutting and fixing device of the present utility model, it further includes a stabilizing assembly connected to the cutting assembly, which includes a base, a stabilizing frame, a stabilizing block, and a third spring. The base is fixed to the bottom of the support block, the stabilizing frame is fixed to the top of the base, the stabilizing block is arranged inside the stabilizing frame, and both ends of the third spring are fixed to the base and the stabilizing block respectively.

[0016] The beneficial effects of the present utility model are as follows: Through the setting of the clamping assembly, it is used to provide appropriate clamping force, avoid deformation of the pipe part, and is applicable to the cutting of metal pipes with different shapes, thereby shortening the cutting time and improving the cutting efficiency and safety. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0018] Figure 1 It is the overall structure diagram of the metal pipe cutting and fixing device.

[0019] Figure 2 It is the structure diagram of the clamping assembly of the metal pipe cutting and fixing device.

[0020] Figure 3 It is for the Figure 2 partial enlarged structure diagram at position A of the metal pipe cutting and fixing device.

[0021] Figure 4 It is the sectional structure diagram of the connecting block of the metal pipe cutting and fixing device.

[0022] Figure 5 It is the sectional structure diagram of the fixing frame of the metal pipe cutting and fixing device.

[0023] Figure 6 It is the structure diagram of the stabilizing assembly of the metal pipe cutting and fixing device.

[0024] In the figure: 200, clamping assembly; 201a, fixing frame; 201b, movable column; 201c, first spring;

[0025] 201d, sealing plug; 201e, sealing block; 202, rotating member; 201a-1, slot; 201a-2, chamber; 201a-3, ventilation hole; 202a, threaded block; 202b, threaded post; 202c, support block; 202e, stabilizing plate; 202d, pulley; 203, support member; 203a, positioning post; 203b, support plate; 203c, fixing block; 203e, second spring; 204, connecting member; 204a, rotating post; 204b, rotating sleeve; 203b-1, first threaded hole; 204a-1, clamping block; 204b-1, clamping groove; 204c, connecting block; 100, cutting assembly; 102, bracket; 101, cutting mechanism; 300, stabilizing assembly; 301, base; 302, stabilizing frame; 303, stabilizing block; 303a, third spring. Detailed implementation manners

[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following provides a detailed description of the specific implementation manners of the present utility model with reference to the accompanying drawings of the specification.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that are mutually exclusive of other embodiments.

[0029] Embodiment 1

[0030] Refer to Figures 1-6, which is the first embodiment of the present utility model. This embodiment provides a metal pipe cutting and fixing device. The metal pipe cutting and fixing device includes a clamping assembly 200, which includes a fixed frame 201a, a movable column 201b, a first spring 201c, a sealing plug 201d, a sealing block 201e, and a rotating member 202. A slot 201a-1 is opened in the fixed frame 201a, the movable column 201b is inserted into the slot 201a-1, both ends of the first spring 201c are fixed to the movable column 201b and the inner bottom wall of the fixed frame 201a respectively. The sealing plug 201d is arranged at one end of the movable column 201b, the sealing block 201e is on one side of the fixed frame 201a. A chamber 201a-2 is opened in the fixed frame 201a, the chamber 201a-2 communicates with the slot 201a-1, a ventilation hole 201a-3 is opened on one side of the fixed frame 201a, and the sealing block 201e is coaxial with the ventilation hole 201a-3. The rotating member 202 is arranged on one side of the fixed frame 201a.

[0031] There are two sets of the clamping assemblies 200, and there are multiple slots 201a-1, which are evenly distributed in the fixed frame 201a. The number of the movable columns 201b is the same as that of the slots 201a-1. Through the settings of the slot 201a-1 and the first spring 201c, the movable column 201b is used to move up and down in the fixed frame 201a, so that the movable column 201b fits the shape of the pipe. The number of the sealing plugs 201d is the same as that of the movable columns 201b.

[0032] There are two sealing blocks 201e, and the four sides are inclined, which is convenient for tightly fitting with the ventilation hole 201a-3 to ensure sealing.

[0033] Through the settings of the sealing plug 201d, the sealing block 201e, and the chamber 201a-2, the movable column 201b is fixed in a suitable position by air pressure, avoiding the problem that the movable column 201b changes its position after clamping the pipe, resulting in unstable clamping of the pipe and further reducing the cutting safety.

[0034] When placing pipes with different shapes between the two sets of clamping assemblies 200, the metal pipe will squeeze the movable column 201b, so that the movable column 201b will move to a suitable position according to the shape of the metal pipe. At this time, the sealing block 201e is tightly engaged with the ventilation hole 201a-3 to ensure that the inside of the fixed frame 201a is not connected to the outside air. At this time, under the action of the atmospheric pressure, the position of the movable column 201b is fixed, so as to clamp the pipe tightly. In this way, the pipe can be subjected to uniform and stable clamping force, avoiding tube deformation caused by over-tightening or over-loosening of clamping, and being applicable to various shapes of pipes at the same time, thereby improving the stability and cutting efficiency.

[0035] Embodiment 2

[0036] Refer to Figures 1-6, which is the second embodiment of the present utility model, and this embodiment is based on the previous embodiment.

[0037] Specifically, the rotating member 202 includes a threaded block 202a, a threaded column 202b, a support block 202c, and a stabilizing plate 202e. The threaded block 202a is fixed to one side of the fixed frame 201a. The threaded column 202b is in threaded connection with the threaded block 202a. The support block 202c is located on one side of the fixed frame 201a. One side of the stabilizing plate 202e is fixed to the support block 202c. The threaded column 202b is rotatably connected to the inside of the stabilizing plate 202e.

[0038] There are two sets of the rotating members 202, which are respectively located on both sides of the fixed frame 201a and are used to apply a thrust to the fixed frame 201a, so that the fixed frame 201a moves towards the metal pipe fitting, thereby making the movable column 201b fit more closely to the metal pipe fitting, so as to clamp the pipe fitting.

[0039] The threads above and below the threaded column 202b are arranged in opposite directions, so that when the threaded column 202b rotates, the two fixed frames 201a move in opposite directions, thereby realizing clamping the pipe fitting from two directions, namely, from above and below.

[0040] A handle is provided at the top of one of the threaded columns 202b for driving the rotation of the threaded column 202b.

[0041] Specifically, the rotating member 202 includes a pulley 202d. The pulley 202d is fixed to the outside of the threaded column 202b. The two pulleys 202d are connected by a belt for transmission.

[0042] Through the arrangement of the pulleys 202d, the two threaded columns 202b rotate simultaneously, ensuring that the fixed frame 201a horizontally drives the movable column 201b to approach the metal pipe fitting, thereby improving the stability and reliability of clamping.

[0043] When it is necessary to clamp the metal pipe fitting, rotate the handle. The handle drives the rotation of the threaded column 202b and drives the rotation of the other threaded column 202b through the pulley 202d, so that the fixed frame 201a steadily approaches the metal pipe fitting, and further makes the movable column 201b tightly adhere to the metal pipe along the shape of the pipe, completing the preliminary clamping.

[0044] Specifically, the clamping assembly 200 further includes a support member 203. The support member 203 includes a positioning column 203a, a support plate 203b, and a fixing block 203c. The positioning column 203a is fixed to one side of the fixed frame 201a. The support plate 203b is movably connected to the outside of the positioning column 203a. The fixing block 203c is fixed to one end of the positioning column 203a. The sealing block 201e is fixed to the support plate 203b.

[0045] There are two sets of the support members 203, which are respectively located on one side of the two fixed frames 201a. Through the arrangement of the support members 203, it is used to ensure that the sealing block 201e and the ventilation hole 201a-3 are coaxial, and ensure that the sealing block 201e can only move in the vertical direction, so as to ensure the sealing effect on the chamber 201a-2 after the sealing block 201e is plugged tightly.

[0046] The arrangement of the fixed block 203c is used to limit the movement of the support plate 203b, so that the two fixed frames 201a can move up and down within a certain range.

[0047] Specifically, the support member 203 further includes a second spring 203e. One end of the second spring 203e is fixed to the support plate 203b, and the other end is fixed to the fixed frame 201a.

[0048] Through the arrangement of the second spring 203e, it is used to apply a thrust force to the support member 203. Without other external forces, the sealing block 201e is separated from the ventilation hole 201a-3, so as to ensure that before sealing, it will not affect the locking of the movable column 201b to the metal pipe fitting.

[0049] Specifically, the clamping assembly 200 further includes a connecting member 204, which is arranged on one side of the fixed frame 201a and includes a rotating column 204a and a rotating sleeve 204b. A first threaded hole 203b-1 is opened on the support plate 203b. One end of the rotating column 204a is threadedly connected to the internal thread of the first threaded hole 203b-1, and the rotating sleeve 204b is sleeved outside the rotating column 204a.

[0050] Through the arrangement of the connecting member 204, it is used to make the two sealing blocks 201e tightly engage with the ventilation hole 201a-3 at the same time, so as to seal the chamber 201a-2, and further lock the movable column 201b in a suitable position to complete the fixation of the metal pipe.

[0051] Embodiment 3

[0052] Refer to Figures 1-6 , which is the third embodiment of the present invention, and this embodiment is based on the first two embodiments.

[0053] Specifically, a clamping block 204a-1 is fixed on one side of the rotating column 204a, and a clamping groove 204b-1 corresponding to the clamping block 204a-1 is opened on the rotating sleeve 204b, and the clamping block 204a-1 slides in the clamping groove 204b-1.

[0054] Through the engagement of the clamping block 204a-1 and the clamping groove 204b-1, it is used to ensure that when the rotating sleeve 204b rotates, it can drive the rotating column 204a to rotate. At the same time, with the cooperation of the first threaded hole 203b-1, the sealing block 201e approaches and closely adheres to the ventilation hole 201a-3 to complete the sealing of the chamber 201a-2, so as to lock the position of the movable column 201b.

[0055] Specifically, the connecting member 204 further includes a connecting block 204c, and the connecting block 204c is rotatably connected to the outer sides of the rotating column 204a and the threaded column 202b.

[0056] Through the arrangement of the connecting block 204c, it is used to fix the relative positions of the rotating column 204a and the threaded column 202b.

[0057] When the movable column 201b completes the preliminary clamping of the metal pipe fitting, at this time, rotate the rotating sleeve 204b, and drive the rotating column 204a to rotate. Under the cooperation of the rotating column 204a and the first threaded hole 203b-1, the support plate 203b moves vertically along the positioning column 203a. Continue to rotate the rotating sleeve 204b until the sealing block 201e is completely sealed with the air vent 201a-3. At this time, under the action of the sealing plug 201d, the sealing block 201e and the air vent 201a-3, the pressure in the chamber 201a-2 is constant, so that the position of the movable column 201b is locked, and then the fixing of the metal pipe fitting is completed. Due to the air pressure acting in all directions of the closed chamber, the pipe is subjected to a uniform clamping force, thereby improving the stability and reliability of the clamping.

[0058] When it is necessary to release the fixation of the metal pipe fitting, just rotate the rotating sleeve 204b in the reverse direction to separate the sealing block 201e from the air vent 201a-3 and open the chamber 201a-2. At this time, the movable column 201b can re-adjust its position, rotate the handle, drive the two threaded columns 202b to rotate, and make the fixing frame 201a move smoothly away from the metal pipe fitting, thereby unlocking the fixation. At the same time, it is convenient to fix pipes of different shapes again later, thereby improving the cutting efficiency.

[0059] Specifically, it further includes a cutting assembly 100, which is connected to the clamping assembly 200 and includes a bracket 102 and a cutting mechanism 101. The bracket 102 is located on one side of the support block 202c, and the cutting mechanism 101 is arranged on the bracket 102.

[0060] Through the arrangement of the cutting assembly 100, it is used to complete the cutting operation of the metal pipe. The arrangement of the bracket 102 is used to support the cutting mechanism 101. The position of the cutting mechanism 101 can be adjusted on the bracket 102, and it can meet the cutting of pipe fittings of different lengths and sizes. This is the prior art and will not be elaborated in this solution.

[0061] Specifically, it further includes a stabilizing assembly 300, which is connected to the cutting assembly 100 and includes a base 301, a stabilizing frame 302, a stabilizing block 303 and a third spring 303a. The base 301 is fixed to the bottom of the support block 202c, the stabilizing frame 302 is fixed to the top of the base 301, the stabilizing block 303 is arranged in the stabilizing frame 302, and both ends of the third spring 303a are fixed to the base 301 and the stabilizing block 303 respectively.

[0062] Through the setting of the stabilizing component 300, it is used to stabilize the metal pipe fittings, facilitating the subsequent clamping by the clamping component 200. The third spring 303a exerts a thrust on the stabilizing block 303. With the cooperation of the stabilizing frame 302, the stabilizing block 303 can move up and down within the stabilizing frame 302, being applicable to the stabilization of various metal pipe fittings.

[0063] During use, when placing pipe materials of different shapes between the two groups of clamping components 200, the metal pipe material will squeeze the movable column 201b. As a result, the movable column 201b will move to a suitable position according to the shape of the metal pipe material. At this time, the sealing block 201e is tightly engaged with the air vent 201a-3 to ensure that the inside of the fixed frame 201a is not connected to the outside air. At this time, under the action of atmospheric pressure, the position of the movable column 201b is fixed, thereby clamping the pipe material. In this way, the pipe material can be subjected to a uniform and stable clamping force, avoiding tube deformation caused by over-tightening or over-loosening during clamping. At the same time, it is applicable to pipe materials of various shapes, thus improving stability and cutting efficiency.

[0064] When it is necessary to clamp the metal pipe fitting, rotate the handle. The handle drives the threaded column 202b to rotate and drives another threaded column 202b to rotate through the pulley 202d, so that the fixed frame 201a moves smoothly closer to the metal pipe fitting. Furthermore, the movable column 201b is closely attached to the metal pipe material along the shape of the pipe material to complete the preliminary clamping. At this time, rotate the rotating sleeve 204b and drive the rotating column 204a to rotate. With the cooperation of the rotating column 204a and the first threaded hole 203b-1, the support plate 203b moves vertically along the positioning column 203a. Continue to rotate the rotating sleeve 204b until the sealing block 201e is completely sealed with the air vent 201a-3. At this time, under the action of the sealing plug 201d, the sealing block 201e and the air vent 201a-3, the pressure in the chamber 201a-2 is constant, locking the position of the movable column 201b, and thus completing the fixation of the metal pipe fitting. Due to the air pressure acting in all directions of the closed chamber, the pipe material is subjected to a uniform clamping force, thereby improving the stability and reliability of clamping.

[0065] When it is necessary to cut metal pipe fittings of the same shape in the same batch, release the fixation of the previous metal pipe fitting. Just rotate the handle in the opposite direction to drive the threaded column 202b to rotate, making the fixed frame 201a move smoothly away from the metal pipe fitting. At the same time, it will not change the relative position of the movable column 201b, facilitating the fixation of pipe fittings in the same batch and improving the cutting efficiency.

[0066] When it is necessary to cut metal pipe fittings of different shapes, release the fixation of the previous metal pipe fitting. Just rotate the rotating sleeve 204b in the opposite direction to separate the sealing block 201e from the ventilation hole 201a-3 and open the chamber 201a-2. At this time, the movable column 201b can re-adjust its position. Rotate the handle to drive the two threaded columns 202b to rotate, so that the fixed frame 201a moves smoothly away from the metal pipe fitting, thereby unlocking the fixation. At the same time, it is convenient to fix pipes of different shapes again later, so as to improve the cutting efficiency.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A metal pipe cutting and fixing device, characterized in that: include, The clamping assembly (200) comprises a fixed frame (201a), a movable column (201b), a first spring (201c), a sealing plug (201d), a sealing block (201e) and a rotating member (202), wherein a slot (201a-1) is provided in the fixed frame (201a), the movable column (201b) is plugged into the slot (201a-1), two ends of the first spring (201c) are respectively fixed to the movable column (201b) and the inner bottom wall of the fixed frame (201a), and the sealing plug (201d) is inserted into the slot (201a-1). ) is arranged at one end of the movable column (201b), the sealing block (201e) is on one side of the fixed frame (201a), a chamber (201a-2) is opened in the fixed frame (201a), the chamber (201a-2) is connected to the slot (201a-1), an air hole (201a-3) is opened on one side of the fixed frame (201a), the sealing block (201e) and the air hole (201a-3) are coaxial, and the rotating member (202) is arranged on one side of the fixed frame (201a).

2. The metal pipe cutting and fixing device according to claim 1, characterized in that: The rotating member (202) comprises a threaded block (202a), a threaded column (202b), a support block (202c) and a stabilizing plate (202e); the threaded block (202a) is fixed to one side of the fixing frame (201a); the threaded column (202b) is connected to the inner thread of the threaded block (202a); the support block (202c) is located on one side of the fixing frame (201a); one side of the stabilizing plate (202e) is fixed to the support block (202c); and the threaded column (202b) is rotatably connected to the inner surface of the stabilizing plate (202e).

3. The metal pipe cutting and fixing device according to claim 2, characterized in that: The rotating member (202) comprises a pulley (202d), the pulley (202d) is fixed to the outside of the threaded column (202b), and the two pulleys (202d) are connected via a belt drive.

4. The metal pipe cutting and fixing device according to claim 2 or 3, characterized in that: The clamping assembly (200) further comprises a support member (203), wherein the support member (203) comprises a positioning column (203a), a support plate (203b) and a fixing block (203c), wherein the positioning column (203a) is fixed to one side of the fixing frame (201a), the support plate (203b) is movably connected to the outer side of the positioning column (203a), the fixing block (203c) is fixed to one end of the positioning column (203a), and the sealing block (201e) is fixed to the support plate (203b).

5. The metal pipe cutting and fixing device according to claim 4, characterized in that: The support member (203) further comprises a second spring (203e), one end of the second spring (203e) being fixed to the support plate (203b), and the other end of the second spring (203e) being fixed to the fixing frame (201a).

6. The metal pipe cutting and fixing device according to claim 5, characterized in that: The clamping assembly (200) further comprises a connecting member (204), which is arranged on one side of the fixing frame (201a) and comprises a rotating column (204a) and a rotating sleeve (204b); a first threaded hole (203b-1) is provided on the supporting plate (203b); one end of the rotating column (204a) is connected to the inner thread of the first threaded hole (203b-1); and the rotating sleeve (204b) is sleeved on the outside of the rotating column (204a).

7. The metal pipe cutting and fixing device according to claim 6, characterized in that: A clamping block (204a-1) is fixed on one side of the rotating column (204a), a clamping groove (204b-1) corresponding to the clamping block (204a-1) is provided on the rotating sleeve (204b), and the clamping block (204a-1) slides in the clamping groove (204b-1).

8. The metal pipe cutting and fixing device according to claim 6 or 7, characterized in that: The connecting member (204) further comprises a connecting block (204c), wherein the connecting block (204c) is rotatably connected to the rotating column (204a) and the outer side of the threaded column (202b).

9. The metal pipe cutting and fixing device according to claim 8, characterized in that: It also comprises a cutting assembly (100), connected to the clamping assembly (200), comprising a bracket (102) and a cutting mechanism (101), wherein the bracket (102) is located on one side of the supporting block (202c), and the cutting mechanism (101) is arranged on the bracket (102).

10. The metal pipe cutting and fixing device according to claim 9, characterized in that: The invention also comprises a stabilizing component (300), which is connected to the cutting component (100) and comprises a base (301), a stabilizing frame (302), a stabilizing block (303) and a third spring (303a), wherein the base (301) is fixed to the bottom of the supporting block (202c), the stabilizing frame (302) is fixed to the top of the base (301), the stabilizing block (303) is arranged in the stabilizing frame (302), and two ends of the third spring (303a) are respectively fixed to the base (301) and the stabilizing block (303).

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