阅读说明：本技术 一种飞机大尺寸同轴孔内壁原位抛光工具及其使用方法 (In-situ polishing tool for inner wall of large-size coaxial hole of airplane and using method of in-situ polishing tool ) 是由 刘欢 章健 刘亮 张平 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种飞机大尺寸同轴孔内壁原位抛光工具及其使用方法,涉及同轴孔工件抛光技术领域。本发明的抛光工具包括与通孔同轴心间隙配合的转动柱、安装于转动柱上抛光打磨环、安装于转动柱上对抛光打磨环进行精准限位的止动环；转动柱的外周侧环绕设置有凸环、设置于相邻两凸环之间的环形槽、设置于转动柱一外端部的转动连接轴；抛光打磨环包括套筒以及转动环,转动环的外侧面通过条形开缝环绕卷裹安装有打磨砂纸,止动环对称安装于每一转动环的两侧。本发明实现对飞机零件上大尺寸同轴孔内壁原位抛光修理,提高修理工作效率,避免反复拆装对飞机零件本身及周围结构造成的损伤,避免孔径磨偏产生椭圆现象,提高了抛光修理运动过程中工具的稳定性。(The invention discloses an in-situ polishing tool for the inner wall of a large-size coaxial hole of an airplane and a use method thereof, and relates to the technical field of coaxial hole workpiece polishing. The polishing tool comprises a rotating column, a polishing ring and a stop ring, wherein the rotating column is coaxially in clearance fit with the through hole; the periphery side of the rotating column is provided with convex rings in a surrounding manner, an annular groove arranged between two adjacent convex rings and a rotating connecting shaft arranged at the outer end part of one rotating column; the polishing and grinding ring comprises a sleeve and rotating rings, grinding abrasive paper is arranged on the outer side surfaces of the rotating rings in a winding mode through strip-shaped slits, and the stop rings are symmetrically arranged on two sides of each rotating ring. The invention realizes the in-situ polishing and repairing of the inner wall of the large-size coaxial hole on the airplane part, improves the repairing work efficiency, avoids the damage to the airplane part and the surrounding structure caused by repeated disassembly and assembly, avoids the ellipse phenomenon generated by the hole diameter wear deviation, and improves the stability of the tool in the polishing and repairing movement process.)

1. An in-situ polishing tool for the inner wall of a large-size coaxial hole of an airplane, which is used for polishing and grinding the inner wall of a through hole (501) of a workpiece (5) including but not limited to a fork-ear large-size coaxial hole, and is characterized in that:

the polishing tool comprises a rotating column (1) which is coaxially in clearance fit with the through hole (501), a polishing and grinding ring (2) which is arranged on the rotating column (1), and a stop ring (3) which is arranged on the rotating column (1) and used for accurately limiting the polishing and grinding ring (2);

the periphery side of the rotating column (1) is provided with convex rings (101) which correspond to the through holes (501) and are in clearance fit with the through holes in a surrounding manner, an annular groove (102) arranged between every two adjacent convex rings (101), and a rotating connecting shaft (103) arranged at one outer end part of the rotating column (1);

the polishing and grinding ring (2) comprises a sleeve (202) and a rotating ring (201) arranged at the end of the sleeve (202), a strip-shaped slot (2021) is transversely formed in the side of the rotating ring (201), grinding abrasive paper (4) is wound and mounted on the outer side surface of the rotating ring (201) through the strip-shaped slot (2021), and the grinding abrasive paper (4) on the outer wall of the rotating ring (201) is attached to the inner peripheral side wall of the through hole (501) in an extrusion mode;

the stop rings (3) are symmetrically arranged on two sides of each rotating ring (201).

2. The in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane as claimed in claim 1, wherein the end part of the rotating connecting shaft (103) is fixedly arranged in a drill chuck or a conical sleeve of an air drill or an electric drill and rotates synchronously with the drill chuck or the conical sleeve.

3. The in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane as claimed in claim 1, wherein the outer side wall of the convex ring (101) is uniformly provided with first threads (1011) around.

4. The in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane as claimed in claim 1, wherein second threads (2012) connected with the first threads (1011) are uniformly distributed around the inner peripheral side wall of the rotating ring (201), and rotating anti-skid threads (2011) are uniformly distributed around the outer peripheral side wall of the rotating ring (201).

5. The in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane as claimed in claim 1, wherein the stop ring (3) is a spiral retainer ring.

6. The use method of the in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane as claimed in any one of claims 1 to 5, is characterized by comprising the following steps:

s01, selecting a polishing and grinding ring (2): a polishing and grinding ring (2) of which the size corresponds to that of the through hole (501) is selected according to the size of the ground workpiece;

s02, mounting and polishing abrasive paper (4): installing polishing abrasive paper (4) on the polishing and polishing ring (2) through a strip-shaped slit (2021), and enabling the polishing abrasive paper (4) to be attached to the peripheral side wall of the sleeve (202) in a surrounding mode;

s03, mounting a polishing tool: the polishing and grinding ring (2) provided with the polishing and grinding sand paper (4) is arranged between two fork lugs of a fork lug type large-size coaxial hole type workpiece (2), stop rings (3) are arranged on two sides of each polishing and grinding ring (2), the stop rings (3), through holes (501) and the polishing and grinding rings (2) sequentially penetrate through a rotating column (1), so that the stop rings (3) and the polishing and grinding rings (2) are respectively sleeved between annular grooves (102), then convex rings (101) arranged on the annular grooves (102) between the two fork lugs and towards two sides respectively are screwed in, so that second threads (2012) on the rotating ring (201) are in threaded fit with first threads (1011) on the convex rings (101) until the two polishing and grinding rings (2) clamp the two fork lugs, and at the moment, the polishing and grinding sand paper (4) on the peripheral side wall of the sleeve (202) is attached to the inner wall of the polished through holes (501) in an extruding manner, the side walls of the two rotating rings (201) facing the sleeve (202) are respectively in clearance fit with the side walls of the two fork lugs for limiting, and the stop rings (3) on the two sides of the polishing and grinding ring (2) are used for limiting the spiral position: finally, the end of the rotary connecting shaft (103) is fixedly connected with a drill chuck or a conical sleeve of an air drill or an electric drill;

s04, grinding the workpiece: fixing the bottom end of a fork ear type large-size coaxial hole type workpiece (5), starting an air drill or an electric drill, polishing the inner wall of the through hole (501) until polishing is completed, reversely disassembling a polishing tool according to the steps, and taking out the polished workpiece.

Technical Field

The invention belongs to the technical field of coaxial hole workpiece polishing, and particularly relates to an in-situ polishing tool for an inner wall of a large-size coaxial hole of an airplane and a use method of the in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane.

Background

Disclosure of Invention

The in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane and the use method thereof realize in-situ polishing and repairing of the inner wall of the large-size coaxial hole on the part, improve the repairing work efficiency, avoid damage to the part and surrounding structures caused by repeated assembly and disassembly, ensure the precision of the size of the inner wall of the hole after polishing and repairing, avoid the phenomenon that the hole diameter is deviated to generate an ellipse, and improve the stability of the tool in the polishing and repairing movement process.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to an in-situ polishing tool for the inner wall of a large-size coaxial hole of an airplane and a using method thereof, wherein the polishing tool is used for polishing and grinding the inner wall of a through hole of a large-size coaxial hole workpiece including but not limited to a fork ear type, and comprises a rotating column which is in coaxial clearance fit with the through hole, a polishing and grinding ring arranged on the rotating column, and a stop ring which is arranged on the rotating column and used for accurately limiting the polishing and grinding ring;

the periphery side of the rotating column is provided with convex rings which correspond to the through holes and are in clearance fit with the through holes in a surrounding manner, an annular groove which is arranged between every two adjacent convex rings and a rotating connecting shaft which is arranged at the outer end part of one rotating column;

the polishing and grinding ring comprises a sleeve and a rotating ring arranged at the end part of the sleeve, a strip-shaped slit is transversely formed in the side part of the rotating ring, grinding abrasive paper is wound and mounted on the outer side surface of the rotating ring through the strip-shaped slit, and the grinding abrasive paper on the outer wall of the rotating ring is in extrusion fit with the inner peripheral side wall of the through hole;

the stop rings are symmetrically arranged on two sides of each rotating ring.

Furthermore, the end part of the rotating connecting shaft is fixedly arranged in a drill chuck or a conical sleeve of the air drill or the electric drill and rotates synchronously with the drill chuck or the conical sleeve.

Furthermore, the outer side wall of the convex ring is uniformly provided with first threads in a surrounding manner.

Furthermore, the inner peripheral side wall of the rotating ring is uniformly provided with second threads connected with the first threads in a surrounding mode, and the outer peripheral side wall of the rotating ring is uniformly provided with rotating anti-skid threads in a surrounding mode.

Further, the stop ring adopts a spiral retainer ring.

The use method of the in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane comprises the following steps:

s01, selecting a polishing and grinding ring: selecting a polishing ring with a size corresponding to the size of the through hole according to the size of the workpiece to be polished;

s02, mounting and polishing abrasive paper: mounting polishing abrasive paper on the polishing and polishing ring through the strip-shaped slot, and enabling the polishing abrasive paper to be attached to the peripheral side wall of the sleeve in a surrounding mode;

s03, mounting a polishing tool: the polishing and grinding ring with the installed grinding abrasive paper is firstly arranged between two fork lugs of a fork lug type large-size coaxial hole type workpiece, stop rings are arranged on two sides of each polishing and grinding ring, and then the stop rings, the through holes and the polishing and grinding rings sequentially penetrate through the rotating columns to enable the stop rings and the polishing and grinding rings to be respectively sleeved between the annular grooves, then by set up respectively on the ring channel between two fork ears to the bulge loop of both sides precession, make the first screw thread screw-thread fit on second screw thread and the bulge loop on the swivel becket, until two the polishing ring of polishing just presss from both sides tightly the two fork ears, at this moment the abrasive paper of polishing on the sleeve periphery lateral wall extrudees the laminating mutually with the through-hole inner wall of being polished mutually, two the swivel becket carry on spacingly with the lateral wall clearance fit of two fork ears respectively towards telescopic lateral wall to carry out the injecing of screw position by the retaining ring of polishing ring both sides: finally, the rotary connecting shaft end is fixedly connected with a drill chuck or a conical sleeve of an air drill or an electric drill;

s04, grinding the workpiece: fixing the bottom end of a fork ear type large-size coaxial hole type workpiece, starting an air drill or an electric drill, grinding and polishing the inner wall of the through hole until the grinding is finished, reversely disassembling a polishing tool according to the steps, and taking out the workpiece after the grinding and polishing are finished.

The invention has the following beneficial effects:

1. the polishing tool disclosed by the invention can be used for realizing in-situ polishing and repairing of the inner wall of a large-size coaxial hole on an airplane part, improving the repairing work efficiency, avoiding the damage to the part and the surrounding structure caused by repeated assembly and disassembly, ensuring the precision of the size of the inner wall of the hole after polishing and repairing, avoiding the ellipse phenomenon caused by the deviation of the bore diameter, and improving the stability of the tool in the polishing and repairing motion process.

2. The polishing tool disclosed by the invention is designed with human-based and comfortable ergonomics as concepts, has a simple and practical overall structure, and can realize in-situ polishing and repairing of the inner wall of the large-size coaxial hole on the fork ear part. The defect of using limitation of the conventional method is overcome; the multifunctional electric heating water heater has the advantages of comprehensive functions, low cost, simplified structure, easiness in manufacturing, safety, reliability, energy conservation, environmental friendliness and convenience in operation.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an in-situ polishing tool for an inner wall of a large-size coaxial hole of an aircraft after being mounted on a fork ear type large-size coaxial hole type workpiece;

FIG. 2 is a schematic structural diagram of an in-situ polishing tool for an inner wall of a large-size coaxial hole of an aircraft according to the present invention;

FIG. 3 is a schematic view of the structure of the rotating column of the present invention;

FIG. 4 is a left side view of the structure of FIG. 3;

FIG. 5 is a schematic view of the configuration of the polishing grinding ring of the present invention;

FIG. 6 is a right side view of the structure of FIG. 5;

FIG. 7 is a schematic view of the configuration of the present invention for mounting a polishing and sanding ring and sanding paper;

FIG. 8 is a right side view of a structure of a large-sized coaxial hole type workpiece like a fork lug;

FIG. 9 is a step diagram of a method for using the in-situ polishing tool for the inner wall of the large-size coaxial hole of the airplane according to the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-rotating column, 101-convex ring, 1011-first thread, 102-annular groove, 103-rotating connecting shaft, 2-polishing and grinding ring, 201-rotating ring, 2011-rotating anti-slip thread, 2012-second thread, 202-sleeve, 2021-strip-shaped slot, 3-stop ring, 4-polishing sand paper, 5-fork ear type large-size coaxial hole type workpiece and 501-through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "peripheral side", "an outer end", "side", "lateral", etc., indicate an orientation or positional relationship merely for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.

Referring to fig. 1-8, the in-situ polishing tool for the inner wall of the large-size coaxial hole of the aircraft according to the present invention is used for polishing and grinding the inner wall of the through hole 501 of the large-size coaxial hole workpiece 5, including but not limited to a tuning fork, and includes a rotating column 1 coaxially and in clearance fit with the through hole 501, a polishing and grinding ring 2 installed on the rotating column 1, and a stop ring 3 installed on the rotating column 1 for precisely limiting the polishing and grinding ring 2;

the periphery of the rotating column 1 is provided with convex rings 101 which correspond to the through holes 501 and are in clearance fit with the through holes, an annular groove 102 arranged between two adjacent convex rings 101, and a rotating connecting shaft 103 arranged at one outer end part of the rotating column 1 in a surrounding manner;

the polishing and grinding ring 2 comprises a sleeve 202 and a rotating ring 201 arranged at the end of the sleeve 202, a strip-shaped slit 2021 is transversely formed in the side of the rotating ring 201, grinding abrasive paper 4 is wound and mounted on the outer side of the rotating ring 201 through the strip-shaped slit 2021, and the grinding abrasive paper 4 on the outer wall of the rotating ring 201 is attached to the inner peripheral side wall of the through hole 501 in an extrusion manner; the snap rings 3 are symmetrically installed at both sides of each rotation ring 201.

Wherein, the end part of the rotary connecting shaft 103 is fixedly arranged in a drill chuck or a conical sleeve of the air drill or the electric drill and rotates synchronously with the drill chuck or the conical sleeve.

Wherein, the outer side wall of bulge loop 101 encircles the equipartition and is provided with first screw 1011.

Wherein, the inner peripheral lateral wall of swivel 201 encircles the equipartition and offers the second screw thread 2012 with first screw thread 1011 threaded connection, and the outer peripheral lateral wall of swivel 201 encircles the equipartition and is provided with rotation anti-skidding line 2011.

Wherein, the stop ring 3 adopts a spiral retainer ring.

As shown in fig. 9, a method for using an in-situ polishing tool for the inner wall of a large-size coaxial hole of an airplane comprises the following steps:

s01, selecting a polishing and grinding ring 2: a polishing and grinding ring 2 of a size corresponding to the size of the through hole 501 is selected for the size of the workpiece to be ground;

s02, mounting and grinding abrasive paper 4: mounting grinding abrasive paper 4 on the polishing and grinding ring 2 through a strip-shaped slit 2021, so that the grinding abrasive paper 4 is circumferentially attached to the peripheral side wall of the sleeve 202;

s03, mounting a polishing tool: the polishing and grinding ring 2 with the installed grinding sand paper 4 is firstly arranged between two fork lugs of a fork lug type large-size coaxial hole type workpiece 2, the two sides of each polishing and grinding ring 2 are provided with a stop ring 3, and then the stop ring 3, the through hole 501 and the polishing and grinding ring 2 are sequentially penetrated through the rotating column 1, so that the stop ring 3 and the polishing and grinding ring 2 are respectively sleeved between the annular grooves 102, then by set up in the bulge loop 101 of the ring channel 102 between the two forks of ears to both sides respectively precession, make second screw 2012 on the rotating ring 201 and the first screw 1011 screw-thread fit on the bulge loop 101, until two polishing ring 2 just press from both sides tight to the two forks of ears, the abrasive paper 4 of polishing on the lateral wall of sleeve 202 periphery is laminated with the through-hole 501 inner wall of being polished mutually this moment, the lateral wall towards sleeve 202 of two rotating rings 201 carries on spacingly with the lateral wall clearance fit of two forks of ears respectively to carry out the injecing of screw position by the retaining ring 3 of polishing ring 2 both sides: finally, fixedly connecting the 103 end of the rotary connecting shaft with a drill chuck or a conical sleeve of an air drill or an electric drill;

s04, grinding the workpiece: fixing the bottom end of a fork ear type large-size coaxial hole type workpiece 5, starting an air drill or an electric drill, grinding and polishing the inner wall of the through hole 501 until the grinding is finished, reversely disassembling a polishing tool according to the steps, and taking out the workpiece after the grinding and polishing are finished.

The polishing tool disclosed by the invention can be used for realizing in-situ polishing and repairing of the inner wall of a large-size coaxial hole on an airplane part, improving the repairing work efficiency, avoiding the damage to the part and the surrounding structure caused by repeated assembly and disassembly, ensuring the precision of the size of the inner wall of the hole after polishing and repairing, avoiding the ellipse phenomenon caused by the deviation of the bore diameter, and improving the stability of the tool in the polishing and repairing motion process. The polishing tool disclosed by the invention is designed with human-based and comfortable ergonomics as concepts, has a simple and practical overall structure, and can realize in-situ polishing and repairing of the inner wall of the large-size coaxial hole on the fork ear part. The defect of using limitation of the conventional method is overcome; the multifunctional electric heating water heater has the advantages of comprehensive functions, low cost, simplified structure, easiness in manufacturing, safety, reliability, energy conservation, environmental friendliness and convenience in operation.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.