Handheld tool of maintenance tool and construction method

Abstract

The invention relates to aircraft manufacturing and maintenance, and discloses a handheld tool of a maintenance tool and a construction method, and the handheld tool comprises a mounting frame, a stop bearing, an adapter frame, a gradienter and a gravity hammer. Wherein the mounting frame is used for mounting a tool head. The stop bearing comprises a locking structure, and the locking structure is used for limiting rotation of the stop bearing. And the adapter frame is rotatably connected with the mounting frame through a stop bearing. The side face of the gradienter is rotationally connected with the adapter frame, and an included angle is formed between two rotating planes of the adapter frame. The gravity hammer is fixed below the gradienter, the centers of the gravity hammer and the gradienter are aligned with the inclinometer, and the inclinometer is connected with the mounting frame. The construction method comprises the steps that the included angle between the tangent plane of the machining position of a to-be-machined workpiece and the horizontal plane is obtained, the angle reading from the installation frame to the inclinometer is inclined to be complementary with the included angle, the installation frame is kept, meanwhile, the stop bearing is rotated till the gradienter indicates to be in the center, the stop bearing is locked through the locking structure, and the tool head is started to construct the to-be-machined workpiece when the gradienter is in the center.

Description

Technical Field

[0001] The present application relates to aircraft manufacturing and maintenance, and in particular to a handheld tool for a maintenance tool and a construction method. Background Art

[0002] At present, frequent disassembly and periodic inspection of the main load-bearing structural fasteners of aircraft, high-precision reaming and cold expansion are effective ways to solve the problem of aircraft structure fatigue. During the aircraft structure repair process, the verticality of construction such as drilling, hole guiding, reaming, cold expansion and fastener installation directly determines the stress concentration in the repair area, which in turn completely affects the quality of aircraft structure repair work.

[0003] However, the current method of ensuring verticality during construction relies on personal work experience and a second person's perspective to help see verticality. This method lacks accuracy and stability, is highly subjective, and is easily affected by human factors. It is difficult to ensure that the verticality of each construction meets the requirements, which is not conducive to improving the overall quality and reliability of aircraft structure repairs.

[0004] Therefore, a solution is needed that can more easily ensure the verticality of construction. Summary of the invention

[0005] The technical problem to be solved by this application is: how to improve the construction verticality of maintenance tools.

[0006] In order to solve the above technical problems, the present application provides a handheld tool and a construction method for a maintenance tool.

[0007] According to a first aspect of the present application, a handheld tool for a maintenance tool is provided, the handheld tool comprising: a mounting frame for mounting a tool head; a stop bearing, the stop bearing comprising a locking structure, the locking structure being used to limit the rotation of the stop bearing; an adapter frame, the adapter frame and the mounting frame are rotatably connected via the stop bearing; a level, the side of the level is rotatably connected to the adapter frame, and two rotation planes of the adapter frame have an angle; a gravity hammer, the gravity hammer is fixed below the level, the gravity hammer is aligned with the center of the level; and an inclinometer is connected to the mounting frame.

[0008] In one embodiment, the handheld tooling also includes: an indicator plate, which is used to be fixed on the workpiece to be processed and is used to display the reaming path; a laser locator, which is assembled on a mounting frame and is used to emit visible light to the indicator plate, and the visible light forms a light spot on the indicator plate.

[0009] In one embodiment, the handheld tool further includes a laser rangefinder, which is mounted on a mounting frame and is used to measure the distance between the handheld tool and a workpiece to be processed.

[0010] In one embodiment, the inclinometer is a mechanical inclinometer or a digital inclinometer.

[0011] In one embodiment, the mounting frame is made of ferromagnetic material, the inclinometer or the laser locator is provided with magnetic material, and the inclinometer or the laser locator is magnetically mounted on the mounting frame.

[0012] In one embodiment, the locking structure is any one of the following: a threaded locking structure, a magnetic coupling structure, a friction coupling structure, and a hydraulic coupling structure.

[0013] The second aspect of the present application provides a construction method for a maintenance tool, the construction method adopts the handheld tool provided in the first aspect of the present application, and the construction method includes: obtaining the angle between the section of the workpiece to be processed and the horizontal plane; tilting the mounting frame until the angle reading of the inclinometer and the angle are complementary; maintaining the mounting frame and rotating the stop bearing until the level indicates that it is centered; locking the stop bearing through a locking structure; and starting the tool head to work on the workpiece to be processed when the level is centered.

[0014] In one embodiment, the inclinometer is detachably connected to the mounting frame, and the step of obtaining the angle between the section of the workpiece to be processed and the horizontal plane includes: contacting the measuring surface of the inclinometer with the workpiece to be processed; and obtaining the angle according to the current angle reading of the inclinometer.

[0015] In one embodiment, the handheld tool also includes an indicator plate and a laser locator. After locking the stop bearing through the locking structure, the construction method also includes: aligning the tool head with the processing position of the workpiece to be processed; turning on the laser locator; installing the indicator plate on the workpiece to be processed according to the light spot of the laser locator; operating the handheld tool so that the light spot of the laser locator is on the reaming path of the indicator plate.

[0016] In one embodiment, the handheld tool also includes a laser rangefinder. While operating the handheld tool so that the light spot of the laser locator is on the reaming path of the indicator plate, the construction method also includes: when the parameter of the monitoring laser rangefinder changes to a preset value, stopping the operation of the handheld tool to go deeper into the workpiece to be processed.

[0017] Compared with the prior art, the handheld tool and construction method of a maintenance tool in the embodiment of the present application have the following beneficial effects:

[0018] Compared with repairs based on splicing feel and experience, the handheld tooling of the embodiment of the present application provides an accurate reference for repairs. Specifically, when the angle of the inclinometer on the handheld tooling is equal to the angle measured previously, the direction of the tool head is on a plane perpendicular to the workpiece to be processed, and on this basis, the level is adjusted to be centered. At this time, the direction of the tool head will be completely perpendicular to the workpiece to be processed. At this time, the stop bearing is locked, and the swing generated by the contact point of the tool head with the workpiece to be processed can be converted into the swing of the level. Therefore, it is only necessary to keep the level centered to ensure that the tool head is perpendicular to the workpiece to be processed. Since the indication of the level is directly visible to the naked eye, it provides a reference for vertical repairs and can improve the construction verticality of the repair tools. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of a handheld tooling shown as an example in an embodiment of the present application.

[0020] Figure 2 It is another structural schematic diagram of a handheld tooling shown as an example in an embodiment of the present application.

[0021] Figure 3 It is a vertical principle schematic diagram of a handheld tooling shown as an example in an embodiment of the present application.

[0022] Figure 4 It is a schematic diagram of the reaming principle of a handheld tool exemplarily shown in an embodiment of the present application.

[0023] Figure 5 It is a flow chart of a construction method exemplarily shown in an embodiment of the present application.

[0024] Reference numerals:

[0025] 10. Handheld tooling, 20. Tool head, 30. Workpiece to be processed, 301. Bottom hole of workpiece, 302. Final reaming, 101. Mounting frame, 102. Stop bearing, 1021. Locking structure, 103. Adapter frame, 104. Level, 105. Gravity hammer, 106. Inclinometer, 107. Indicator board, 1071. Reaming path, 108. Laser locator, 1081. Light spot, 109. Laser rangefinder. DETAILED DESCRIPTION

[0026] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0027] In the description of the present application, it should be understood that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are intended to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate so that the embodiments of the present application can be implemented in a marking manner other than illustrated or described. In addition, "including", "having" and any variation thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of components, steps or units is not necessarily limited to those components, steps or units explicitly listed, and may also include other components, steps or units that are not explicitly listed but are inherent to these processes, methods, products or devices.

[0028] Frequent disassembly and periodic inspection of the main load-bearing structural fasteners of aircraft, high-precision reaming and cold expansion are effective ways to solve the problem of aircraft structural fatigue. The inventors found that in the maintenance and overhaul of aircraft, the verticality of the construction of drilling, leading holes, reaming, cold expansion and fastener installation directly determines the stress concentration in the repair area, which in turn completely affects the work quality of aircraft structural repair.

[0029] The current method of ensuring verticality during construction relies on personal work experience and a second person's perspective to help see verticality. This method lacks precision and stability, is highly subjective, and is easily affected by human factors. It is difficult to ensure that the verticality of each construction meets the requirements, which is not conducive to improving the overall quality and reliability of aircraft structure repairs.

[0030] The traditional method of relying on manual experience to ensure vertical construction is inefficient and can no longer meet the growing volume of maintenance tasks. In emergency maintenance tasks, the inability to quickly and accurately ensure vertical construction may also lead to extended aircraft grounding time, causing huge economic losses to airlines. In addition, the structural design of new aircraft is becoming more and more complex, and the requirements for vertical construction accuracy are becoming higher and higher. The existing manual judgment method is even more stretched, and a scientific, efficient and stable construction vertical assurance technology is urgently needed to fill this gap.

[0031] In this regard, Figure 1 and Figure 2 As shown, a handheld tool 10 of a maintenance tool according to a preferred embodiment of the present application is provided. The handheld tool 10 includes: a mounting frame 101, a stop bearing 102, an adapter frame 103, a level 104 and a gravity hammer 105.

[0032] The mounting frame 101 is used to mount the tool head 20. The stop bearing 102 includes a locking structure 1021, and the locking structure 1021 is used to limit the rotation of the stop bearing 102. The adapter frame 103 is rotatably connected to the mounting frame 101 through the stop bearing 102. The side of the level 104 is rotatably connected to the adapter frame 103, and the two rotation planes of the adapter frame 103 have an angle. The gravity hammer 105 is fixed below the level 104, and the gravity hammer 105 is aligned with the center of the level 104. The inclinometer 106 is connected to the mounting frame 101.

[0033] Compared with the need for feel and experience, in this application, the side of the level 104 is rotatably connected to the adapter 103, and the two rotation planes of the adapter 103 have an angle, which cooperates with the gravity hammer 105 aligned with the center of the level 104 below. The gravity hammer 105 is always vertically downward under the action of gravity, and the level 104 can intuitively display the angle of the axis direction of the tool head 20 relative to the horizontal plane according to the vertical direction of the gravity hammer 105. During construction, maintenance personnel can quickly and accurately determine whether the axis direction of the tool head 20 is perpendicular to the surface of the workpiece 30 to be processed by observing the level 104, thereby accurately controlling the verticality of the construction, solving the problem of relying on personal feeling and the assistance of others to judge the inaccurate verticality in the past.

[0034] After the correct construction direction of the tool head 20 is determined, the stop bearing 102 no longer rotates. Therefore, the tool head 20 takes the contact point with the workpiece 30 to be processed as the base point, and the movement of swinging to deviate from the vertical surface of the workpiece 30 to be processed is transmitted to the level 104 through the adapter frame 103. Therefore, the bubble position in the level 104 can intuitively reflect the vertical state of the tool head 20 and the surface of the workpiece 30 to be processed.

[0035] Regardless of the movement, when the bubble of the level is centered, the axis of the tool head 20 and the surface of the workpiece to be machined are always perpendicular.

[0036] When implementing the above solution, there is only one situation: when the direction of the tool head 20 is exactly parallel to the rotation axis of the level 104, when the tool head 20 is rotated with the normal line at the contact point of the workpiece 30 to be processed as the rotation axis, the level 104 may not change. In this case, the axis of the tool head 20 always coincides with the normal line, and does not affect the verticality between the tool head 20 and the workpiece, but only changes the hand-held angle of the tool head 20. Therefore, it still meets the characteristic of "no matter what kind of movement occurs, when the bubble of the level is centered, the axis of the tool head 20 and the surface of the workpiece to be processed are always perpendicular."

[0037] Therefore, the level 104, in conjunction with the mounting frame 101, the adapter frame 103 and other structures, can accurately present quantitative visual effects to maintenance personnel. Maintenance personnel can make more detailed adjustments based on the level 104 to further ensure the vertical accuracy of construction, effectively reduce stress concentration caused by verticality problems in the repair area, and improve the quality of aircraft structure repair.

[0038] In the present application, the inclinometer 106 may be a mechanical inclinometer 106 or a digital inclinometer 106 .

[0039] In addition to the problem of verticality, the inventors also found that during the maintenance process, eccentric reaming is difficult and the accuracy is hard to control. The existing method of using metal templates combined with work experience requires high skills of workers and has poor accuracy stability, which cannot meet the high-precision construction requirements.

[0040] When reaming, the blade of the reamer will perform micro-cutting on the hole wall to remove the tiny protrusions and uneven parts on the hole wall, so as to make the hole diameter more accurate and the hole wall smoother. This process requires not only verticality but also precise control of circular motion, so it requires higher proficiency and brings greater technical challenges.

[0041] For this purpose, in this application, Figure 2 and 4 As shown, the handheld tool 10 may further include: an indicator board 107 and a laser locator 108 .

[0042] The indicator plate 107 is used to be fixed on the workpiece 30 to be processed, and is used to display the reaming path 1071. The laser locator 108 is assembled on the mounting frame 101, and is used to emit visible light to the indicator plate 107, and the visible light forms a light spot 1081 on the indicator plate 107.

[0043] Since the mounting frame 101 is assembled with the tool head 20, when the laser locator 108 is assembled with the mounting frame 101, it is equivalent to assembling the laser locator 108 with the tool head 20. At this time, when the tool head 20 moves, the laser locator 108 bound thereto also moves along the same trajectory.

[0044] According to this characteristic, an indicator plate 107 is installed on the workpiece 30 to be processed, and an accurate reaming path 1071 is set on the indicator plate 107. When the tool head 20 is controlled to move the light spot 1081 of the laser locator 108 along the reaming path 1071, the moving path of the tool head 20 is the same as the preset reaming path 1071, thereby achieving precise reaming operation.

[0045] Since laser has high brightness and strong penetrating power, it can be operated in environments of various brightness.

[0046] The indicator plate 107 may be a printed card, paper, wood board, etc. By printing reaming paths 1071 of different apertures, reaming operations of different diameters can be realized, so that accurate and free reaming operations can be realized without investing high costs in subsequent use.

[0047] Based on this, in one embodiment of the present application, the handheld tool 10 may further include optical magnifying glasses.

[0048] Different operators may have different observations and judgments on the laser-guided path, and optical magnification glasses provide a magnified visual standard. Regardless of the operator's experience, they can operate based on the same clear visual effect, thereby reducing operational inconsistencies caused by differences in human judgment, ensuring the stability of reaming quality, and improving the quality level of overall maintenance work.

[0049] Aircraft structures are complex, and when reaming in some narrow or multi-layered areas, light may be blocked, making observation difficult. Optical magnifying glasses have certain focusing and magnifying functions, which can enhance the observation effect of these complex areas, help maintenance personnel see the direction of the laser in complex structures, and enable reaming operations to be performed accurately in complex environments, improving the applicability of the device under different working conditions.

[0050] It is understandable that the tool head can be any one of the tools for opening holes, guiding holes, reaming holes, cold expanding holes, installing fasteners, equidistant eccentric reaming and fixed-distance single-layer reaming, and this application does not impose any specific restrictions on this.

[0051] Moreover, when further exploring the reasons that affect the repair effect, the inventors also found that traditional reaming operations are difficult to accurately locate the specific layer where cracks occur in multi-layer reinforced structures, and are prone to mistakenly cutting other intact layers, affecting the overall strength of the structure.

[0052] In the present application, the handheld tool 10 further includes a laser rangefinder 109 , which is mounted on the mounting frame 101 . The laser rangefinder 109 is used to measure the distance between the handheld tool 10 and the workpiece 30 to be processed.

[0053] The handheld tool 10 can accurately measure the distance difference before and after construction through the laser rangefinder 109, and compare it with the thickness of the crack layer structural member. When the two are equal, the position of the crack layer can be accurately determined, and only the reaming and cutting of the cracks in this layer are performed, which greatly improves the accuracy of the cutting position, effectively avoids unnecessary damage to other crack-free layers, and ensures the integrity and safety of the aircraft structure.

[0054] The cooperation of the laser rangefinder 109 and the laser locator 108 can realize reaming with precise diameter and precise depth at the same time, which can play a vital role in maintenance work.

[0055] In the present application, since the ranging laser emitted by the laser rangefinder 109 is visible, the laser rangefinder 109 can be used as the laser locator 108. Therefore, in the present application, two devices can be used to respectively realize the functions of the laser locator 108 and the laser rangefinder 109, or the same device can realize the functions.

[0056] Based on this, there are two feasible equipment configuration methods in the implementation process of the present application. One is to use two independent devices, which are dedicated to realizing the functions of the laser locator 108 and the laser rangefinder 109 respectively. The other method is more streamlined and efficient, with the same laser rangefinder 109 taking on both the functions of laser positioning and ranging. This not only reduces the number of devices, reduces equipment costs and maintenance complexity, but also avoids possible compatibility issues between multiple devices, making the entire tooling system more compact and convenient.

[0057] Since the normal implementation of the solution of this application is not affected, both methods fall within the protection scope of this application.

[0058] In the present application, the mounting frame 101 may be made of ferromagnetic material, the inclinometer 106 or the laser locator 108 is provided with magnetic material, and the inclinometer 106 or the laser locator 108 is magnetically assembled on the mounting frame 101 .

[0059] Magnetic assembly improves the convenience of assembly and disassembly. The magnetic assembly method allows maintenance personnel to quickly absorb and assemble the various components of the tooling into place without the need for tedious operations such as tightening bolts or snapping.

[0060] For example, the laser rangefinder 109 and its matching mounting bracket can be connected instantly through magnetic attraction. Compared with the traditional assembly method, it can shorten the tooling construction time by about 30%, greatly improving the efficiency of the pre-maintenance preparation work, allowing maintenance personnel to enter key operations such as drilling and reaming more quickly.

[0061] At the same time, after the maintenance task is completed, the magnetic assembly makes it easy and convenient to disassemble the tooling. The components can be quickly separated, reducing the time wasted due to difficult disassembly. This not only speeds up the cleaning of the maintenance site and frees up space for other possible maintenance tasks, but also allows the tooling system to be recycled and maintained in a timely manner, extending its service life and improving the overall turnover efficiency of the tooling system.

[0062] In the present application, the stop bearing 102 is different from the conventional solution, and the adopted locking structure 1021 can be any one of the following: a threaded locking structure 1021, a magnetic coupling structure, a friction coupling structure, and a hydraulic coupling structure.

[0063] Different coupling modes can all play a role in fixing the stop bearing 102 so that it always maintains a set angle.

[0064] Correspondingly, such as Figure 5 As shown, the present application also provides a construction method of a maintenance tool, the construction method adopts the handheld tool 10 provided in any embodiment of the present application, and the construction method may include:

[0065] S101, obtaining an angle between a section of a workpiece 30 to be processed and a horizontal plane.

[0066] S102 , the angle reading and the included angle of the tilt mounting frame 101 to the inclinometer 106 are complementary to each other.

[0067] S103 , holding the mounting frame 101 , rotate the stop bearing 102 until the level gauge 104 indicates that it is centered.

[0068] S104 , locking the stop bearing 102 via the locking structure 1021 .

[0069] S105 , when the level 104 is centered, start the tool head 20 to work on the workpiece 30 to be processed.

[0070] For ease of understanding, you can combine Figure 3 , use a measuring tool to measure the angle A or B, or directly obtain the structural parameters of the workpiece 30 to be processed from the design file, and then directly obtain A or B. Since A and B are complementary angles, and the angle between the parallel lines of B and C is equal, A and C are also complementary angles. Therefore, in step S102, the handheld tool 10 is tilted until the angle reading of the inclinometer 106 is complementary to the angle, so that the tool head 20 is in a Figure 3 Then, step S103 is performed, the tool 10 is held in the hand, and the stop bearing 102 is rotated until the level 104 indicates that the tool head 20 is centered. Figure 3 Since the normal direction is perpendicular to the tangential direction, the tool head 20 is also perpendicular to the tangential direction, that is, the tool head 20 is perpendicular to the workpiece 30 to be processed. At this time, through S104 and S105, vertical processing can be achieved.

[0071] On this basis, if a solution is adopted in which the inclinometer 106 and the mounting frame 101 are detachably connected, in the present application, the step S101 of obtaining the angle between the section at the processing point of the workpiece 30 to be processed and the horizontal plane may include: contacting the measuring surface of the inclinometer 106 with the workpiece 30 to be processed; and obtaining the angle based on the current angle reading of the inclinometer 106.

[0072] That is, the same inclinometer 106 can be reused, first as a tool for measuring the workpiece 30 to be processed, and then as an adjustment tool in the handheld tool 10 .

[0073] It can be understood that, since in the present application, the workpiece to be processed is a plane or a curved surface with a very small curvature, when the measuring surface of the inclinometer contacts the processing part of the workpiece to be processed, the inclination angle can be measured accurately and stably.

[0074] The inclinometer 106 may have one or more measuring surfaces, and the technical solution in the present application may be implemented by using any measuring surface, and is not limited to the present application.

[0075] It can be understood that in any embodiment of the present application, after locking the stop bearing 102 , the inclinometer 106 can be removed from the handheld tool 10 , and only the level meter 104 needs to be observed.

[0076] Correspondingly, in one embodiment, the handheld tool 10 may further include an indicator plate 107 and a laser locator 108. Therefore, after locking the stop bearing 102 by the locking structure 1021, the construction method may further include: aligning the tool head 20 with the processing position of the workpiece 30 to be processed. Turning on the laser locator 108. Installing the indicator plate 107 on the workpiece 30 to be processed according to the light spot 1081 of the laser locator 108. Operating the handheld tool 10 so that the light spot 1081 of the laser locator 108 is on the reaming path 1071 of the indicator plate 107.

[0077] For details, please refer to Figure 4 Since the tool head 20 and the light spot 1081 move together, it is only necessary to observe the moving trajectory of the light spot 1081 on the reaming path 1071 to determine whether the reaming operation is as expected.

[0078] For example, in one embodiment, the bottom hole 301 of the workpiece can be expanded into the final reamed hole 302 by rotating counterclockwise or clockwise starting from the 9 o'clock position.

[0079] In one embodiment, the handheld tool 10 also includes a laser rangefinder 109. While operating the handheld tool 10 so that the light spot 1081 of the laser locator 108 is on the reaming path 1071 of the indicator plate 107, the construction method may also include: when the parameter of the monitoring laser rangefinder 109 changes to a preset value, stopping the operation of the handheld tool 10 to go deeper into the workpiece 30 to be processed.

[0080] In the present application, monitoring the parameter change of the laser rangefinder 109 to the preset value can be understood as monitoring the parameter change from parameter 1 to parameter 2, and monitoring parameter 2 itself. It can also be understood as monitoring the parameter change from parameter 1 to parameter 3, thereby reaching parameter 2, and monitoring parameter 3. There is no substantial difference between the two methods, and therefore both fall within the protection scope of the present application.

[0081] When the parameter change reaches the preset value, it means that the ideal processing depth has been reached, and the maintenance personnel can immediately stop operating the handheld tool 10 to go deeper into the workpiece. This effectively avoids over-processing caused by operating errors, prevents unnecessary damage to the workpiece, ensures that the dimensional accuracy of the processed workpiece meets the strict standards for aircraft structure repair, and ensures the safety and reliability of the aircraft structure.

[0082] It is understandable that the tooling in this application is suitable for handheld use. When a manipulator or other equipment is used instead of handheld, it is also understood as handheld use. When it conforms to the scheme recorded in this application, it also falls within the protection scope of this application. For example, in one embodiment, a manipulator combined with a visual recognition scheme can be used to operate the tooling of this application, which is also recognized as using the scheme of this application.

[0083] Any embodiment of the structure of the handheld tool 10 in the present application and its beneficial effects are applicable to the construction method in the present application. The relevant contents recorded in the construction method of the present application are also applicable to the handheld tool 10. The embodiments and beneficial effects recorded in the two places can complement each other, and they will not be described one by one.

[0084] The various embodiments included in this application can be freely combined, and the new solutions formed after the combination also fall within the protection scope of this application.

[0085] The handheld tool 10 provides a more accurate and efficient operation method for aircraft structural repair construction. When performing complex construction such as single-layer reaming, the tool can accurately control the verticality and angle, thereby reducing repeated construction caused by operational errors. For example, in the single-layer reaming work that previously required the disassembly of all secondary structures after the surface layer, now through precise construction, it is possible to complete high-quality reaming work without completely disassembling all secondary structures, greatly simplifying the construction process.

[0086] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present application. These improvements and substitutions should also be regarded as the scope of protection of the present application.

Claims

1. A handheld tool for a cutting tool, characterized in that: The handheld tool (10) comprises: A mounting frame (101), wherein the mounting frame (101) is used to mount a tool head (20); A stop bearing (102), the stop bearing (102) comprising a locking structure (1021), the locking structure (1021) being used to limit the rotation of the stop bearing (102); An adapter frame (103), the adapter frame (103) being rotatably connected to the mounting frame (101) via the stop bearing (102); A level (104), wherein a side surface of the level (104) is rotatably connected to the adapter frame (103), and two rotation planes of the adapter frame (103) have an included angle; A gravity hammer (105), wherein the gravity hammer (105) is fixed below the level meter (104), and the gravity hammer (105) is aligned with the center of the level meter (104); An inclinometer (106), wherein the inclinometer (106) is connected to the mounting frame (101).

2. The handheld tool according to claim 1, characterized in that: The tooling also includes: an indicator plate (107), the indicator plate (107) being used to be fixed on a workpiece (30) to be processed, the indicator plate (107) being used to display a reaming path (1071); A laser locator (108), the laser locator (108) being mounted on the mounting frame (101), the laser locator (108) being used to emit visible light to the indicator plate (107), the visible light forming a light spot (1081) on the indicator plate (107).

3. The handheld tool according to claim 2, characterized in that: The mounting frame (101) is made of ferromagnetic material, the inclinometer (106) or the laser locator (108) is provided with magnetic material, and the inclinometer (106) or the laser locator (108) is magnetically mounted on the mounting frame (101).

4. The handheld tool according to claim 1, characterized in that: The handheld tool (10) further comprises a laser rangefinder (109), wherein the laser rangefinder (109) is mounted on the mounting frame (101), and the laser rangefinder (109) is used to measure the distance between the handheld tool (10) and a workpiece (30) to be processed.

5. The handheld tool according to claim 1, characterized in that: The inclinometer (106) is a mechanical inclinometer or a digital inclinometer.

6. The handheld tool according to claim 1, characterized in that: The locking structure (1021) is any one of the following: Thread locking structure (1021), magnetic coupling structure, friction coupling structure, hydraulic coupling structure.

7. A construction method of a cutting tool, characterized in that: The construction method adopts the handheld tool (10) according to any one of claims 1 to 6, and the construction method comprises: Obtaining the angle between the section of the workpiece (30) to be processed and the horizontal plane; Tilt the mounting frame (101) until the angle reading of the inclinometer (106) is complementary to the included angle; While holding the mounting frame (101), rotate the stop bearing (102) until the level gauge (104) indicates that the level is centered; Locking the stop bearing (102) via a locking structure (1021); When the level (104) is centered, the tool head (20) is started to perform processing on the workpiece (30) to be processed.

8. The construction method according to claim 7, characterized in that: The inclinometer (106) is detachably connected to the mounting frame (101), and the step of obtaining the angle between the section of the workpiece (30) to be processed and the horizontal plane comprises: bringing the measuring surface of the inclinometer (106) into contact with the processing portion of the workpiece (30) to be processed; The included angle is obtained according to the current angle reading of the inclinometer (106).

9. The construction method according to claim 7, characterized in that: The handheld tool (10) further comprises an indicator plate (107) and a laser locator (108). After the stop bearing (102) is locked by a locking structure (1021), the construction method further comprises: Aligning the tool head (20) with the processing position of the workpiece (30) to be processed; Turning on the laser positioning device (108); Mounting the indicator plate (107) on the workpiece (30) to be processed according to the light spot (1081) of the laser positioning device (108); The handheld tool (10) is operated so that the light spot (1081) of the laser locator (108) is located on the reaming path (1071) of the indicator plate (107).

10. The construction method according to claim 9, characterized in that: The handheld tool (10) further comprises a laser rangefinder (109), and while operating the handheld tool (10) so that the light spot (1081) of the laser locator (108) is located on the reaming path (1071) of the indicator plate (107), the construction method further comprises: When the parameter of the monitoring laser rangefinder (109) changes to a preset value, the operation of the handheld tool (10) to move deeper into the workpiece (30) to be processed is stopped.

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