Cutting tool for dismantling deep-cavity narrow multi-dimensional space conduit hoop

Abstract

The utility model discloses a cutting tool for dismantling a deep-cavity narrow multi-dimensional space conduit hoop, the cutting tool comprises a trunk supporting part, a handle operating part and a saw blade, the front end of the trunk supporting part is arranged to be of a flat plane structure, two screw joint holes are formed in the flat plane, screws matched with the screw joint holes are further configured, and the handle operating part is arranged on the handle operating part. The screw is screwed in the main supporting part through the screwing hole, so that the saw blade is detachably fixed on the flat surface structure at the front end of the main supporting part, and the handle operating part is positioned at the rear end of the main supporting part. The cutting tool not only can meet the requirement for maintenance of a guide pipe in a deep-cavity narrow multi-dimensional space, but also can conveniently dismantle parts in the narrow space, guarantees safety production and product quality, has the advantages of being high in accuracy and operability, greatly improves machining efficiency, reduces safety risks, and is simple in overall structure, convenient to operate, economical and practical. The device is low in manufacturing cost, and is particularly suitable for popularization and application in the field of deep-cavity narrow multi-dimensional space repair.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of aircraft repair, and particularly relates to a cutting tool for removing a deep-cavity narrow multi-dimensional space conduit clamp. BACKGROUND

[0002] The main beam is an important component of an aircraft, and the aircraft fuel tank is generally installed on the main beam, forming a deep-cavity narrow multi-dimensional space after installation, the structure of which is shown in Figure 1 The support and clamp are installed in the space, and the conduit is fixed by the clamp. In the daily maintenance process, the bolt holes in the main beam edge strip need to be extruded and reinforced in view of the existing faults. The existing conventional method is used for extrusion and reinforcement, and there is a problem of inconvenient operation. The main reason is that the position of the bolt hole is a deep-cavity narrow space, especially for the main beam component near the aircraft fuel tank, the only construction channel is a long circular hole with a length of 50 mm and a width of 30 mm, and there is a conduit connected with the fuel system near the bolt hole, as well as a support and a clamp for fixing the conduit. This will affect the operation channel of the extrusion and reinforcement of the last two bolt holes, and the conduit fixing point needs to be removed, and then the bolt hole is reinforced. After the reinforcement treatment, other fixing points are found to fix the conduit.

[0003] In the process of aircraft maintenance, the existing faults need to be timely eliminated. If the faults are not timely eliminated, hidden dangers will be left for product safety. Through investigation and discovery, the main reason is that the bolt holes in the main beam edge strip appear fatigue cracks. Therefore, the main beam bolt holes need to be extruded and reinforced. Before the reinforcement, the part is analyzed, and two schemes are obtained, one is to adopt the removal method, and the other is to adopt the small-range local damage method. If the direct removal method is adopted, the existing general tool cannot enter the deep-cavity narrow space, so the small-range local damage method is adopted. The small-range local damage method not only has low cost, but also is easy to implement.

[0004] The small-range local damage method needs to disassemble the fuel pipe. Before disassembling the fuel pipe, the clamp needs to be removed to fix the fuel pipe, the clamp needs to be sawed without damaging the fuel pipe and other parts in the space. Since this part is a fuel area, the cutting frequency cannot be too fast. Therefore, in order to meet the extrusion and reinforcement treatment of the bolt holes in the main beam edge strip, it is very necessary to provide a cutting tool for conveniently removing the conduit fixing point. UTILITY MODEL CONTENTS

[0005] The utility model wants to solve the technical problem in the prior art, when the bolt hole in the main beam edge strip appears fatigue crack, needs to remove the trouble in time, for the problem existing in the maintenance of deep cavity narrow multi-dimensional space conduit, in order to be able to cut the clamp smoothly, take out the fuel conduit, facilitate repair, thereby provide a cutting tool convenient to operate, utilize the cutting tool, stretch into the narrow space, facilitate the dismantling of the component in the narrow space, so as to satisfy the use demand, specifically speaking, a cutting tool for dismantling deep cavity narrow multi-dimensional space conduit clamp.

[0006] To solve the above technical problems, the utility model adopts the technical scheme: a cutting tool for dismantling deep cavity narrow multi-dimensional space conduit clamp, the cutting tool includes main stem support part, handle operating part and saw blade, the front end of main stem support part is provided with flat surface structure, two screw holes are equipped on the flat surface structure, and the screw hole is matched with screw, the screw is screwed in the main stem support part through the screw hole, the saw blade is detachably fixed on the flat surface structure of the front end of main stem support part through screw, and the handle operating part is located at the rear end of main stem support part.

[0007] Further, the utility model discloses a cutting tool for dismantling deep cavity narrow multi-dimensional space conduit clamp, the main stem support part and handle operating part adopt stainless steel round pipe as integrated structure, wherein the saw blade installed at the front end of main stem support part is arranged in perpendicular state between handle operating part, and the cutting edge of saw blade is arranged to the direction of clamp to be dismantled.

[0008] Further, the utility model discloses a cutting tool for dismantling deep cavity narrow multi-dimensional space conduit clamp, the saw blade adopts metal saw blade, and the hardness and wear resistance of metal saw blade are greater than that of aluminum alloy, and the length of main stem support part in cutting tool is greater than the depth of deep cavity space of workpiece to be cut.

[0009] The utility model relates to a cutting tool for dismantling deep cavity narrow multi-dimensional space conduit clamp, through the cooperation of the saw blade and the trunk support part, the trunk support part is used to extend the saw blade into the space to reach the clamp at the specified position, the back-and-forth cutting mode can quickly dismantle the fixed clamp, replaces the previous method of dismantling the conduit fixing point, in the cutting process, the cutting angle and the elongation of the cutting tool can be properly adjusted to obtain the most suitable cutting position, prevent the amplitude during cutting from being big and the frequency from being fast, which can reduce the cutting risk. BRIEF DESCRIPTION OF DRAWINGS

[0010] The utility model will be further and specifically described below in combination with the drawings.

[0011] Figure 1 It is the deep cavity narrow multi-dimensional space structure schematic diagram formed by the existing aircraft fuel tank and main beam;

[0012] Figure 2 It is the structure schematic diagram of the cutting tool of the utility model;

[0013] Figure 3 It is the structure schematic diagram when the cutting tool of the utility model is operated.

[0014] The figure shows: 1 - trunk support part, 2 - saw blade, 3 - handle operating part, 4 - clamp, 5 - long round hole. PREFERRED EMBODIMENT

[0015] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments in the utility model, and obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor all belong to the range of the utility model protection. EMBODIMENT 1

[0016] As Figure 2As shown, this embodiment provides a cutting tool for removing clamps from multidimensional space catheters in deep stenosis. The cutting tool includes a main support part 1, a handle operating part 3, and a saw blade 2. The front end of the main support part 1 is provided with a flat surface structure, and two screw holes are provided in the flat surface. Screws that match the screw holes are also provided. The screws are screwed into the main support part 1 through the screw holes. The saw blade 2 is detachably fixed to the flat surface structure at the front end of the main support part 1 by screws. The handle operating part 3 is located at the rear end of the main support part 1.

[0017] In the specific manufacturing process, the main support part 1 and the handle operation part 3 are made of stainless steel round tubes as an integral structure. The diameter of the stainless steel round tubes is required to be less than 15mm. The saw blade 2 installed at the front end of the main support part 1 is arranged perpendicularly to the handle operation part 3, and the cutting edge of the saw blade 2 is set towards the clamp 4. The saw blade 2 is a metal saw blade with greater hardness and wear resistance than aluminum alloy, and the length of the main support part 1 in the cutting tool is greater than the depth of the deep cavity space of the workpiece. Example 2

[0018] like Figure 3 As shown, this embodiment provides a method for removing a support and clamp of a deep-cavity, narrow, multi-dimensional space conduit using the aforementioned cutting tool. The removal method involves using the configured cutting tool, inserting the saw blade 2 of the cutting tool into the deep cavity of the workpiece through the elongated hole 5, so that the saw blade 2 extends into the clamp 4 of the conduit support, with the cutting edge of the saw blade 2 facing the clamp 4. Then, the handle 3 of the cutting tool is pulled back and forth by hand to cut the clamp 4 using the cutting edge of the saw blade 2, thus separating the clamp 4 used to fix the conduit from the support. After the cutting is completed, the saw blade 2 is first withdrawn from the elongated hole 5 of the workpiece, and then the angle bolts connecting the clamp to the support are removed from the outside of the workpiece, thus completing the removal of the clamp 4 and the support.

[0019] During the cutting process, the operator controls the handle 3 with one hand and holds the main support 1 of the cutting tool with the other hand. The main support 1 drives the saw blade 2 to move back and forth. The saw blade 2 is pulled back and forth slowly, so that the saw blade 2 cuts with a small amplitude and a slow frequency.

[0020] Further, in order to avoid damaging other components in the space during the cutting process, the long circular hole 5 of the workpiece needs to be synchronously inserted into an endoscope before cutting, the endoscope is manually operated to monitor the conduit in the deep cavity space, and the conduit is prevented from being damaged during the cutting process.

[0021] The cutting tool has the advantages that the cutting tool can be used to remove the fixed clamp in the narrow space, the cutting tool is convenient to operate, the safety production and product quality are ensured, the cutting tool has the characteristics of high accuracy and strong operability, the machining efficiency is greatly improved, the safety risk is reduced, the overall structure is simple, the manufacturing cost is low, and the cutting tool is particularly suitable for popularization and application in the deep cavity narrow multi-dimensional space repair field. Figure 1 As shown in the figure, the clamp 4 installed in the workpiece to be cut has a long circular hole 5 with a length of 50mm and a width of 30mm as the only construction channel, the cutting tool convenient for the operator to operate is designed according to the position of the clamp 4 in the workpiece in advance, and the size of the cutting tool needs to be required during the design process.

[0022] During the specific operation process, the operator inserts the cutting tool into the space through the long circular hole 5 to reach the clamp 4 at the specified position, and cuts back and forth, the cutting amplitude is small, and the cutting frequency is slow. When the cutting is completed, the angle bar bolt can be removed from the outside to move away the fuel pipe for the next step of reinforcing the bolt hole.

[0023] In summary, the cutting tool can not only meet the conduit maintenance problem in the deep cavity narrow multi-dimensional space, but also conveniently remove the components in the narrow space, ensure the safety production and product quality, has the characteristics of high accuracy and strong operability, greatly improves the machining efficiency, reduces the safety risk, has a simple overall structure, low manufacturing cost, and is particularly suitable for popularization and application in the deep cavity narrow multi-dimensional space repair field.

[0024] The other parts of the utility model not described in detail are conventional technologies known to those skilled in the art, and thus are not described in detail.

[0025] The protection scope of the utility model is not limited to the technical solutions disclosed in the specific embodiments, the above is only the preferred embodiment of the utility model, and does not limit the utility model, and any slight modification, equivalent replacement and improvement according to the technical solutions of the utility model should be included in the protection scope of the technical solutions of the utility model.

Claims

1. A cutting tool for removing a deep cavity, narrow dimension, spatial catheter clamp, characterized by: The cutting tool comprises a trunk support part (1), a handle operating part (3) and a saw blade (2), the front end of the trunk support part (1) is provided with a flat surface structure, two screw holes are arranged on the flat surface structure, and screws matched with the screw holes are arranged, the screws are screwed into the trunk support part (1) through the screw holes, the saw blade (2) is detachably fixed on the flat surface structure at the front end of the trunk support part (1) through the screws, and the handle operating part (3) is located at the rear end of the trunk support part (1).

2. A cutting tool for removing a deep cavity, narrow stenotic multi-dimensional space catheter band according to claim 1, characterized in that: The trunk support part (1) and the handle operating part (3) are integrally formed by using a stainless steel round pipe, the saw blade (2) installed at the front end of the trunk support part (1) is arranged in a vertical state between the handle operating part (3), and the cutting edge of the saw blade (2) faces the direction of the to-be-removed clamp.

3. A cutting tool for removing a deep cavity constriction multi-dimensional space catheter clamp according to claim 2, characterized in that: The saw blade (2) is made of a metal saw blade with hardness and wear resistance greater than that of an aluminum alloy, and the length of the trunk support part (1) in the cutting tool is greater than the depth of the deep cavity space of the to-be-cut workpiece.

Images