Thin-wall metal pipe cutting tool

Abstract

The utility model discloses a thin-wall metal pipe cutting tool. The thin-wall metal pipe cutting tool is provided with a cutting assembly and a shell assembly. The cutting assembly is provided with a rotating wheel, a first support, a second support, a first support, a second support, a knife rest, a handle, a lever, a blade, a rolling wheel and an elastic piece. The rotating wheel and the first support are fixed together so that the first support and the rotating wheel can rotate synchronously, and teeth are arranged on the rotating wheel and matched with a gear set in a meshed mode. The first support and the second support are both of a C-shaped wall structure and are aligned and fixed together to form a support set, a spring groove structure is formed in the support set, and an elastic piece is placed in the spring groove structure. A first column body and a second column body are respectively designed at the positions, matched with the rocking wall of the handle, of the second support, and the first column body and the second column body are matched with the rocking wall of the handle to adjust the angle of the rocking wall. According to the technical scheme, the cutting system is optimized, the structure of the cutting system is simple, and linkage among all components is relatively smooth.

Description

Technical Field

[0001] The utility model relates to an electric tool, in particular to a thin-wall metal pipe cutting tool, which can be driven by plug-in or lithium battery. Background Art

[0002] The thin-walled metal tube cutting tool is a tool for cutting hollow thin-walled metal tubes. It has components such as a driving power supply, a transmission component, a cutting component, and an electronic control component. Currently, there are also many patent documents that disclose various structures of the tool. The component structure may be more complex, such as a tool holder with a fixed blade having multiple structures, which makes the assembly and transmission more complicated, thus affecting the use of the entire tool. Utility Model Content

[0003] The utility model aims to provide a thin-wall metal pipe cutting tool, and solves the technical problem of optimizing the cutting system so that the structure is simple and the linkage between the components is relatively smooth.

[0004] A thin-walled metal pipe cutting tool is designed with a cutting component and a housing component;

[0005] The cutting assembly comprises a rotating wheel, a first support, a second support, a first bracket, a second bracket, a knife holder, a handle, a lever, a blade, a roller, and an elastic member;

[0006] The rotating wheel is fixed to the first support so that the first support and the rotating wheel rotate synchronously, and the rotating wheel has teeth meshing with a gear set;

[0007] The first support and the second support are both C-shaped wall structures and are aligned and fixed together to form a support group, a spring slot structure is formed in the support group and an elastic member is placed; the second support is respectively designed with a first column and a second column at the position cooperating with the rocking wall of the handle, and the first column and the second column cooperate with the rocking wall of the handle to adjust the angle of the rocking wall;

[0008] The first bracket and the second bracket are both L-shaped structures and are aligned and fixed together to form a bracket group. The bracket group has a placement groove to match the roller, and the bracket group has a hole to connect with the handle shaft.

[0009] The tool holder is provided with a longitudinally arranged rack, which is movably matched with the second lever wall of the lever to enable the tool holder to move up or down, thereby pressing the metal pipe or facilitating the replacement of the metal pipe;

[0010] The handle has a rocking wall and an inclined wall. The rocking wall is configured with a guide plate and a brake plate to adjust the angle of the handle. The inclined wall has an inclined surface that cooperates with the first lever wall of the lever to drive the lever to rotate.

[0011] The blade is fixed on the blade holder and arranged with a relative interval with the roller, and the above interval is the interval for placing the metal pipe.

[0012] The shell assembly also has a casing and a torsion spring; the guide plate is fixed inside the casing, and the surface of the guide plate in contact with the rocking wall is a curved surface to ensure that the rocking wall fits with the first column; the brake plate is configured with a torsion spring, and the brake plate has two curved surfaces to ensure that the rocking wall fits with the first stop or that the rocking wall rotates at an angle to make the tool holder rise; the thin-walled metal pipe cutting tool also includes the gear box, and the gear box has a motor and a gear set.

[0013] The second support is provided with a movable hole, and the rocking wall of the handle is arranged in the movable hole.

[0014] The tool holder is provided with a limiting portion, which cooperates with an elastic body; the end portion where the tool holder and the blade are arranged is a mounting portion, and a straight groove for placing the tool shaft is provided in the mounting portion.

[0015] The first bar wall and the second bar wall are respectively staggered and arranged front to back and maintained in an intersecting configuration.

[0016] The lever is provided with a round shaft portion, and the round shaft portion is axially matched with the round shaft holes on the first bracket and the second bracket.

[0017] A compression spring is provided above the blade, one end of the compression spring is fixed on the blade holder, and the other end thereof is in abutment with the blade shaft.

[0018] The elastic body is a first spring and a second spring, wherein a spring slot is provided below the first bracket and the second bracket and is provided with a first spring, a spring slot is provided above the limiting portion of the tool holder and is provided with a first spring, and a spring slot is provided below the lever and is provided with a second spring.

[0019] The beneficial effects of the utility model are as follows: by designing the first column and the second column on the first bracket, so as to act together with the guide plate and the brake plate, when it is necessary to cut the metal pipe, the entire cutting assembly rotates clockwise, the guide plate and the brake plate push the rocking wall to the first blocking direction and fit with the first column, so that the inclined wall of the handle pushes the second lever wall of the lever to cooperate with the rack of the tool holder, and then the tool holder moves downward, so that the blade on the tool holder can start cutting; when it is necessary to replace the metal pipe, the entire cutting assembly rotates counterclockwise, and the curved surface on the brake plate makes the rocking wall move in the direction away from the first column, so that the inclined wall of the handle pushes the second lever wall of the lever to disengage from the rack of the tool holder, and then the tool holder moves upward, so that the blade on the tool holder is away from the metal pipe and sufficient space is freed up to place the new metal pipe. The structure of the above components is significantly optimized relative to the existing cutting assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is an overall schematic diagram of a thin-walled metal tube cutting tool;

[0021] Figure 2 yes Figure 1 A schematic diagram of the internal components of the tool;

[0022] Figure 3 yes Figure 2 A schematic diagram of another angle of the components;

[0023] Figure 4 is a schematic diagram of the cutting assembly;

[0024] Figure 5 It is a schematic diagram of another angle of the cutting assembly;

[0025] Figure 6 yes Figure 2 A schematic diagram showing the interior of the cutting assembly after removing the first support;

[0026] Figure 7 is an exploded schematic diagram of the cutting assembly;

[0027] Figure 8 This is an exploded view of the cutting assembly from another angle;

[0028] Fig. 9 This is an exploded view of the cutting assembly from another angle;

[0029] Fig.10 is a schematic diagram of the handle;

[0030] Fig.11 It is a schematic diagram of the tool holder;

[0031] Fig.12 It shows that the rocking wall cuts the metal pipe when it is in contact with the first stopper, the inclined wall of the handle drives the first lever wall of the lever to move, and the first lever wall drives the second lever wall to engage with the rack on the tool holder;

[0032] Fig.13 This is a state diagram when the pipe needs to be replaced, in which the rocker arm of the handle moves away from the first gear position, and at the same time, the second lever arm of the lever begins to disengage from the rack on the tool holder;

[0033] Fig.14 It is a schematic diagram showing that after the rocker wall is driven by the brake pad until the second lever wall is completely separated from the rack, the tool holder rises to make enough space to place the new metal pipe;

[0034] Fig.15 It is a schematic diagram of the rocking wall portion of the handle being limited and guided to the first column by the guide piece and the first column when the cutting assembly rotates clockwise;

[0035] Fig.16It is a schematic diagram of the rocking wall part of the handle cooperating with the brake pad when the cutting assembly rotates clockwise;

[0036] Fig.17 is a schematic diagram of the rocking wall portion of the handle being driven by the brake pad to move away from the first column when the cutting assembly rotates counterclockwise;

[0037] Fig.18 It is a schematic diagram of facilitating replacement of the metal pipe when the cutting assembly rotates counterclockwise and the braking portion of the brake pad cooperates with the second column;

[0038] Fig.19 This is a schematic diagram of another style of knife holder;

[0039] In the picture

[0040] 11. Casing, 12. Steering knob, 13. Guide plate;

[0041] 21. brake pad, 211. arc part, 212. brake part, 22. gear set, 23. gear box, 24. torsion spring;

[0042] 31. Rotating wheel,

[0043] 32. First support, 321. Stud,

[0044] 33. The second support, 331. The movable hole, 332. The first column, 333. The second column,

[0045] 34. The first bracket,

[0046] 35. Second bracket,

[0047] 36. Tool holder, 361. Mounting portion, 3611. Straight groove, 362. Limiting portion, 363. Rack,

[0048] 37. Handle, 371. Rocking wall, 372. Slanted wall,

[0049] 38. lever, 381. first lever wall, 382. second lever wall, 383. round shaft portion,

[0050] 391. Blade, 392. Blade shaft, 393. Compression spring,

[0051] 310. Roller,

[0052] 311. First spring, 312. Second spring,

[0053] 41. Mounting hole, 42. Square slot, 43. Spring slot, 44. Placement slot, 45. Round shaft hole, 46. Notch, 47. Tool changing chamber;

[0054] 5.Metal pipe;

[0055] 6. Battery reminder window;

[0056] 7.Observation and tool changing window. DETAILED DESCRIPTION

[0057] Please refer to Figures 1 to 18 The thin-walled metal tube cutting tool in the figure is mainly designed with components such as a shell assembly, a driving assembly, and a cutting assembly. The shell assembly is used to fix and support other components, and the driving assembly is used to drive the cutting assembly to rotate for cutting operations. In practical applications, the above components can be re-optimized, such as adding other components or using existing components for equivalent replacement or optimizing the structure or assembly relationship of the above components.

[0058] The housing assembly in the figure mainly designs the housing 11, the steering knob 12, the guide piece 13 and other structures; the housing 11 is composed of two housing parts spliced ​​together, and a notch 46 is provided at the end, i.e., the position where the metal tube 5 is cut, to facilitate the insertion of the metal tube 5; the steering knob 12 can be a conventional component on an existing cutting tool, and its function is to change the forward and reverse direction of the motor through signal switching, thereby adjusting the rotation direction of the cutting assembly; the guide piece 13 is fixed inside the housing 11 at the position shown in the figure, and the position on it that cooperates with the rocking wall 371 is a curved surface structure, so that the rocking wall 371 is guided to the first column 332 so that it fits with the first column 332. The housing assembly is also equipped with a power observation window 6 to display the remaining power of the device in real time; at the same time, a reversible transparent observation and tool changing window 7 is also arranged just above the tool holder 36, which can penetrate the movement of the internal components and can be turned over to replace the tool holder 36 at this position, and the support group has a tool changing cavity 47 at the corresponding position, so that the tool holder 36 can be taken out from the tool changing cavity 47. The other components of the above-mentioned shell assembly are not closely related to the innovation of this case and are therefore not described for the time being.

[0059] The driving assembly in the figure is mainly designed with components such as a gear box 23, a gear set 22, a brake pad 21, and a torsion spring 24; wherein the gear box 23 has a conventional linkage mechanism that cooperates with the motor; the gear set 22 has a plurality of gears that mesh with each other to drive the rotating wheel 31 of the cutting assembly to rotate and drive the entire cutting assembly to rotate; the brake pad 21 is a structure similar to an opening, one side of which is fixed to the housing 11 by a torsion spring 24, one side has an axial connection end for easy swinging, and one side is a structure similar to a triangle, thus forming an arc portion 211 and a brake portion 212 to form two curved surfaces to ensure that the rocking wall 371 is in contact with the first block or to rotate the rocking wall 371 at an angle to make the tool holder 36 rise, wherein the arc portion 211 is an arc structure, which can keep in contact with the rocking wall 371 and press against the first column 332 during the clockwise rotation, and the brake portion 212 can keep in contact with the rocking wall 371 during the counterclockwise rotation so that the rocking wall 371 moves in another direction, such as Fig.15 The second column 333 is blocked in the direction of the middle arrow mark, so that space can be freed up to replace a new metal tube 5; the torsion spring 24 is a conventional component, and its function is to facilitate the reset of the entire brake pad 21.

[0060] The cutting assembly in the figure is designed with components such as a rotating wheel 31, a support group, a bracket group, a knife holder 36, a handle 37, a lever 38, a blade 391, a roller 310, and an elastic member.

[0061] The rotating wheel 31 is a toothed C-shaped structure with a notch 46, which is convenient for meshing and assembling with the gear set 22 of the driving assembly, thereby driving the entire cutting assembly to rotate. The rotating wheel 31 is fixed to the first support 32 by means of screws and mounting holes 41 so that the first support 32 and the rotating wheel 31 rotate synchronously.

[0062] The support assembly is designed with two parts, the first support 32 and the second support 33, and both are C-shaped structures to form a notch 46; wherein the first support 32 is designed with a plurality of mounting holes 41 and studs 321, the mounting holes 41 are used to cooperate with screws, and the studs 321 are used to cooperate with screws to achieve mutual splicing and fixation with the second bracket 35; the first support 32 has a half square groove 42 structure at the top position as shown in the figure, so that the half square groove 42 structure at the position opposite to the second support 33 is also matched to form a square groove 42 structure for placing the tool holder 36; the first support 32 is as shown in the figure As shown in the figure, the bottom position has a half spring groove 43 structure, so the position corresponding to the second support 33 also has a half spring groove 43 structure, which cooperates to form a spring groove 43 structure, which is convenient for placing the first spring 311 as an elastic member, thereby supporting the bracket group; at the same time, the first support 32 has a half spring groove 43 structure at the top position as shown in the figure, so the position corresponding to the second support 33 also has a half spring groove 43 structure, which cooperates to form a spring groove 43 structure, which is convenient for placing the first spring 311 as an elastic member, thereby configuring the limiting portion 362 of the tool holder 36. The second support 33 is designed with a long movable hole 331 at the position where it cooperates with the handle 37 for easy rotation, and at the same time, a first column 332 and a second column 333 are designed on its outer surface at the position where it cooperates with the rocking wall 371 of the handle 37 to form a protruding structure; the overall shape of the first column 332 is an arc-shaped boss structure, and its two sides are arc-shaped so as to correspond to the rocking wall 371, and the overall shape of the second column 333 is a pointed boss structure, which is convenient for fixing the position of one end of the bottom of the brake pad 21; the first column 332, the second column 333 and the rocking wall 371 of the handle 37 cooperate to adjust the angle of the rocking wall 371. The second column 333 and the brake pad 21 play a role in positioning the cutting assembly when the cutting assembly reverses and retracts, so that the opening of the cutting assembly is just located at the opening of the shell, that is, the notch 46. Fig.18 The position shown is convenient for tool changing.

[0063] The bracket group includes a first bracket 34 and a second bracket 35, both of which are L-shaped structures and spliced ​​with each other. The first bracket 34 and the second bracket 35 cooperate with each other at the top surface of the bottom to form a placement groove 44 structure, which is convenient for placing two rollers 310. The bottom surface of the bottom corresponds to the spring groove 43 of the support group for placing the first spring 311. The first bracket 34 has a spring groove 43 below the position that cooperates with the lever 38 for placing the second spring 312 as an elastic member. The first bracket 34 also has a round shaft hole 45 at a position corresponding to the round shaft portion 383 of the lever 38 so as to install and place the round shaft portion 383. The first bracket 34 also has a mounting hole 41 for mutual fixation with the second bracket 35. The second bracket 35 has a corresponding cavity, i.e., a hole structure, at a position that cooperates with the rocking wall 371, so as to be configured with the first bracket 34 to axially fix the handle 37.

[0064] The overall structure of the knife holder 36 in the figure is similar to a 7-shaped structure, and is designed with a mounting portion 361, a limiting portion 362, and a rack 363 from top to bottom; the mounting portion 361 is used to install the blade 391. As shown in the figure, the mounting portion 361 is designed with a straight groove 3611 structure to facilitate the placement of the blade shaft 392 of the blade 391. The mounting portion 361 is equipped with a compression spring 393 above the blade shaft 392, so that the compression spring 393 always presses down the blade shaft 392 and the blade 391 during the cutting process. Please refer to Fig.19 , which shows another style of the tool holder 36, which uses a straight plate-shaped compression spring 393, and the installation position is located in front of the installation portion 361. The limiting portion 362 is a cross-shaped structure, on which the first spring 311 is sleeved, so that it can be reset; the rack 363 is a conventional linear multi-tooth structure and is arranged longitudinally. It is engaged or separated with the second lever wall 382 of the lever 38 according to the rotation angle of the handle 37 to achieve active cooperation, thereby driving the entire tool holder 36 to rise or fall, thereby pressing the metal pipe 5 or facilitating the replacement of the metal pipe 5.

[0065] The handle 37 in the figure is a special-shaped structure, which is designed with a rocking wall 371 and an inclined wall 372 structure. The rocking wall 371 cooperates with other components such as the guide plate 13 and the brake plate 21 on the housing assembly to adjust the angle of the inclined wall 372 of the handle 37 so as to drive the lever 38 to rotate. The inclined wall 372 has an inclined surface and cooperates with the first lever wall 381 of the lever 38 to drive the entire lever 38 to rotate, thereby driving the second lever wall 382 to rotate. The rocking wall 371 is a structure similar to a rocking handle as a whole, and its top is a round cap-shaped structure, and the inclined wall 372 is a structure with an inclined surface.

[0066] The lever 38 in the figure is a structure similar to a flying fork, and is designed with a first lever wall 381, a second lever wall 382, ​​and a circular shaft portion 383. The first lever wall 381 is located on one side of the second lever wall 382 and is staggered front and back with the second lever wall 382 and maintains an intersecting configuration. The first lever wall 381 and the second lever wall 382 are both straight plate structures, and the circular shaft portion 383 is a circular shaft structure. Both ends of the circular shaft portion 383 are arranged in the circular shaft holes 45 of the first bracket 34 and the second bracket 35, so that the lever 38 can rotate.

[0067] The blade 391 , the knife shaft 392 , and the compression spring 393 in the figure can all be made of existing components and assembled as shown in the figure, that is, one end of the compression spring 393 is fixed on the knife holder 36 , and the other end is in contact with the knife shaft 392 .

[0068] The roller 310 in the figure has two groups of aligned arrangements, and the blade 391 is placed above it, so that the relative interval between the roller 310 and the blade 391 can place the metal pipe 5. The above-mentioned roller 310 keeps rolling when the blade 391 cuts the metal pipe 5, thereby completing the cutting operation.

[0069] The elastic member in the figure is the first spring 311 and the second spring 312 in the figure, wherein the diameter and specification of the first spring 311 are larger than the first spring 311, wherein the first bracket 34 and the second bracket 35 have a spring groove 43 below and are provided with the first spring 311, the limiting portion 362 of the tool holder 36 has a spring groove 43 above and is provided with the first spring 311, and the lever 38 has a spring groove 43 below and is provided with the second spring 312, or in actual application, the use of the second spring 312 may also be cancelled.

[0070] The cutting and replacement process in this case is:

[0071] The steering knob 12 is operated to make the entire cutting assembly move counterclockwise. At this time, the brake pad 21 drives the rocking wall 371 to move away from the first column 332, and the second lever wall 382 is separated from the rack 363 to make the knife holder 36 move upward, thereby increasing the distance between the cutter and the roller 310, and putting the metal pipe 5 into the above interval. The steering knob 12 is operated again to make the entire cutting assembly move clockwise. At this time, the rocking wall 371 moves toward the first column 332 under the action of the guide plate 13 and fits the first column 332, so that the second lever wall 382 is engaged with the rack 363, so that the knife holder 36 moves downward, thereby reducing the distance between the cutter and the roller 310, and completing the cutting operation of the metal pipe 5; after the cutting is completed, the metal pipe 5 is put in as described above.

[0072] The specific embodiments described above are only used to explain the present technical solution and are not used to limit the present technical solution. In the description of the present technical solution, it should be noted that the terms such as "upper" and "inner" indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present technical solution and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technical solution.

[0073] At the same time, in the description of this technical solution, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "matched" 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 directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this technical solution can be understood according to specific circumstances.

[0074] Although embodiments of the present technical solution have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present technical solution, and that the scope of the present technical solution is defined by the appended claims and their equivalents.

Claims

1. Thin-walled metal pipe cutting tool, characterized by: The design includes cutting components and shell components; The cutting assembly comprises a rotating wheel (31), a first support (32), a second support (33), a first bracket (34), a second bracket (35), a knife holder (36), a handle (37), a lever (38), a blade (391), a roller (310), and an elastic member; The rotating wheel (31) and the first support (32) are fixed together so that the first support (32) and the rotating wheel (31) rotate synchronously, and the rotating wheel (31) is linked with a gear set (22); The first support (32) and the second support (33) are both C-shaped wall structures and are aligned and fixed together to form a support group. A spring groove (43) structure is formed in the support group and the elastic member is placed therein. The second support (33) is respectively provided with a first column (332) and a second column (333) at a position cooperating with the rocking wall (371) of the handle (37). The first column (332) and the second column (333) cooperate with the rocking wall (371) of the handle (37) to adjust the angle of the rocking wall (371). The first bracket (34) and the second bracket (35) are aligned and fixed together to form a bracket group, the bracket group has a placement groove (44) that cooperates with the roller (310), and the bracket group has a hole that is axially connected to the handle (37); The tool holder (36) has a plurality of racks (363) arranged longitudinally, and the racks (363) movably cooperate with the second lever wall (382) of the lever (38) to enable the tool holder (36) to ascend or descend, thereby pressing the metal tube (5) or facilitating replacement of the metal tube (5); The handle (37) comprises a rocking wall (371) and an inclined wall (372); the rocking wall (371) is configured with a guide plate (13) and a brake plate (21) so as to adjust the angle of the handle (37); the inclined wall (372) comprises an inclined surface which cooperates with a first lever wall (381) of the lever (38) so as to drive the lever (38) to rotate; The blade (391) is fixed on the blade holder (36) and arranged at a distance from the roller (310), wherein the distance is the distance for placing the metal tube (5); The first lever wall (381) and the second lever wall (382) are respectively arranged in a staggered manner front to back and maintained in an intersecting configuration.

2. The thin-walled metal tube cutting tool according to claim 1, characterized in that: The housing assembly further comprises a casing (11) and a torsion spring (24); the surface of the guide plate (13) in contact with the rocking wall (371) is a curved surface to ensure that the rocking wall (371) fits with the first column (332); the brake plate (21) and the torsion spring (24) are configured to reset the plate, and the brake plate (21) has a curved surface to ensure that the rocking wall (371) fits with the first stop or to rotate the rocking wall (371) to make the tool holder (36) move upward; the thin-walled metal pipe cutting tool further comprises a gear box (23), wherein the gear box (23) comprises a motor and a gear set (22) that cooperate to drive the gear set (22) to rotate.

3. The thin-walled metal tube cutting tool according to claim 2, characterized in that: The second support (33) has a movable hole (331), and the rocking wall (371) of the handle (37) is disposed in the movable hole (331).

4. The thin-walled metal tube cutting tool according to claim 3, characterized in that: The knife holder (36) has a limiting portion (362) which cooperates with an elastic body; the end where the knife holder (36) and the blade (391) are arranged is a mounting portion (361), and the mounting portion (361) has a straight groove (3611) in which the knife shaft (392) is placed.

5. The thin-walled metal tube cutting tool according to claim 4, characterized in that: The lever (38) has a round shaft portion (383), and the round shaft portion (383) is axially matched with the round shaft holes (45) on the first bracket (34) and the second bracket (35).

6. The thin-walled metal tube cutting tool according to claim 5, characterized in that: A compression spring (393) is provided above the blade (391); one end of the compression spring (393) is fixed on the blade holder (36), and the other end of the compression spring (393) is in contact with the blade shaft (392).

7. The thin-walled metal tube cutting tool according to claim 6, characterized in that: The elastic body is a first spring (311) and a second spring (312), wherein a spring slot (43) is provided below the first bracket (34) and the second bracket (35) and is provided with the first spring (311), a spring slot (43) is provided above the limiting portion (362) of the knife holder (36) and is provided with the first spring (311), and a spring slot (43) is provided below the lever (38) and is provided with the second spring (312).

8. The thin-walled metal tube cutting tool according to claim 1, characterized in that: The housing component is also provided with a power observation window (6) for displaying the remaining power of the device in real time.

9. The thin-walled metal tube cutting tool according to claim 8, characterized in that: The housing assembly is also provided with a movable transparent observation and tool-changing window (7); the observation and tool-changing window (7) is located directly above the tool holder (36), and the support assembly has a tool-changing cavity (47) at a corresponding position.

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