阅读说明：本技术 一种打磨装置及飞机蒙皮的打磨方法 (Polishing device and polishing method of aircraft skin ) 是由 赵浙卫 周晖 乐豪杰 陈叙江 满志成 沈威 于 2020-06-29 设计创作，主要内容包括：本发明涉及飞机制造技术领域,公开了一种打磨装置及飞机蒙皮的打磨方法,用于打磨待打磨件,待打磨件上设置有通孔,待打磨装置用于在待打磨件的一侧打磨出凹槽结构,打磨装置包括：打磨组件,打磨组件包括相连的打磨盘和转轴,转轴能穿过待打磨件的通孔；压紧组件,压紧组件能套设在转轴上,并与打磨盘共同夹紧待打磨件；及驱动机构,驱动机构被配置为驱动转轴和打磨盘转动。该打磨装置通过打磨组件的打磨盘和压紧组件共同夹紧待打磨件,通过驱动机构能够驱动打磨组件转动,以在待打磨件的一侧打磨出凹槽结构,该打磨装置所需操作空间小,可以将打磨装置安装于待打磨件上,无需将待打磨件进行拆卸,提高了加工高效率,缩短了加工周期。(The invention relates to the technical field of aircraft manufacturing, and discloses a polishing device and a polishing method of an aircraft skin, wherein the polishing device is used for polishing a to-be-polished piece, a through hole is formed in the to-be-polished piece, the to-be-polished device is used for polishing a groove structure on one side of the to-be-polished piece, and the polishing device comprises: the polishing assembly comprises a polishing disc and a rotating shaft which are connected, and the rotating shaft can penetrate through a through hole of a workpiece to be polished; the compressing assembly can be sleeved on the rotating shaft and can clamp the to-be-polished part together with the polishing disc; and the driving mechanism is configured to drive the rotating shaft and the grinding disc to rotate. This grinding device presss from both sides tightly jointly with the subassembly that compresses tightly through the grinding disc of the subassembly of polishing and treats the piece of polishing, can drive the subassembly of polishing through actuating mechanism and rotate to polish a groove structure in one side of treating the piece of polishing, the required operating space of this grinding device is little, can install grinding device on treating the piece of polishing, need not to treat that the piece of polishing is dismantled, has improved processing high efficiency, has shortened processing cycle.)

1. The utility model provides a grinding device for polish and treat the piece of polishing, treat to be provided with the through-hole on the piece of polishing, grinding device is used for treat one side of the piece of polishing and polish out groove structure, its characterized in that, grinding device includes:

the grinding assembly (1) comprises a grinding disc (11) and a rotating shaft (12) which are connected, and the rotating shaft (12) can penetrate through the through hole of the piece to be ground;

the pressing component (2) can be sleeved on the rotating shaft (12) and can clamp the to-be-polished part together with the polishing disc (11); and

a drive mechanism configured to drive the sharpening assembly (1) in rotation.

2. A sanding device as claimed in claim 1, characterized in that the pressing assembly (2) comprises a pressing disc (21), the pressing disc (21) being fitted over the spindle (12), the spindle (12) being rotatable relative to the pressing disc (21).

3. A sanding device as claimed in claim 2, characterized in that one of the pressing disc (21) and the member to be sanded is provided with a positioning projection (211) and the other of the pressing disc (21) and the member to be sanded is provided with a positioning groove.

4. The sanding device according to claim 2, characterized in that the pressing assembly (2) further comprises a pressing handle (22), the pressing handle (22) being connected to the pressing disc (21), the pressing handle (22) being arranged on a side of the pressing disc (21) remote from the sanding disc (11).

5. An abrading device according to claim 4, characterized in that the pressing handle (22) comprises:

a connecting portion (221) having one end connected to the pressing plate (21); and

and one end of the holding part (222) is connected with the other end of the connecting part (221), and the holding part (222) and the connecting part (221) are arranged at an included angle.

6. A sanding device as claimed in claim 5, characterized in that the connecting portion (221) is arranged parallel to the shaft (12).

7. The grinding device according to any one of claims 1-6, characterized in that the grinding disc (11) comprises:

the supporting disc (111) is connected with the rotating shaft (12); and

the polishing portion (112) is arranged on one side, facing the pressing assembly (2), of the supporting disc (111) and sleeved on the periphery of the rotating shaft (12).

8. An abrading device according to claim 7, characterized in that the abrading part (112) is detachably connected to the support disc (111).

9. An abrading device according to any one of claims 1-6, characterized in that the drive mechanism is detachably connected to the spindle (12).

10. A method for grinding an aircraft skin, wherein the grinding device of any one of claims 1 to 9 is used for grinding the aircraft skin, through holes are formed in the aircraft skin, and the method for grinding the aircraft skin comprises the following steps:

placing the grinding assembly (1) on the inner side of the aircraft skin, and enabling the rotating shaft (12) to penetrate out of the inner side of the aircraft skin through the through hole;

mounting the pressing assembly (2) on the rotating shaft (12) and clamping the aircraft skin with the polishing disc (11);

the rotating shaft (12) is driven to rotate by the driving mechanism, so that the polishing disc (11) polishes a groove structure on the inner side of the aircraft skin.

Technical Field

The invention relates to the technical field of aircraft manufacturing, in particular to a polishing device and a polishing method for an aircraft skin.

Background

The traditional processing method for processing the aircraft skin sunken groove structure mainly comprises two processing modes, wherein one of the two processing modes is as follows: and (4) chemical milling-corrosion processing, namely protecting the non-processed part of the skin part by using a protective paste, and then putting the skin part into a tank liquid for corrosion. However, the position, size and depth of the groove processed by the method are not easy to guarantee; in addition, in the processing process, the whole skin needs to be placed in the bath solution, and the non-processing surface of the skin needs to be protected and paved in a large area, so that the processing cost is very high; in addition, the processing mode is mainly applied to skin parts and cannot be applied to assembled airplane body components, so that the problem of processing on the assembly site of the main passenger plane of the type cannot be solved. The other processing mode is as follows: the method is characterized in that the method is processed by a numerical control five-coordinate processing device, specifically, the method comprises the steps of positioning and clamping the skin on a skin milling fixture, and milling the corresponding counter bore part according to a digital model, however, the processing cost and the processing mode of the method are still relatively complex, construction cannot be carried out on an assembled airplane body member, the skin of the airplane needs to be disassembled, and the airplane body member is easily damaged.

Disclosure of Invention

The invention aims to provide a polishing device and a polishing method of an aircraft skin, which can realize the processing of a sunken groove on the aircraft skin without disassembling the aircraft skin, improve the working efficiency and avoid the damage to an aircraft body part.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a polishing device, which is used for polishing a to-be-polished piece, wherein a through hole is formed in the to-be-polished piece, the to-be-polished device is used for polishing a groove structure on one side of the to-be-polished piece, and the polishing device comprises:

the grinding assembly comprises a grinding disc and a rotating shaft which are connected, and the rotating shaft can penetrate through the through hole of the to-be-ground part;

the pressing component can be sleeved on the rotating shaft and clamps the to-be-polished part together with the polishing disc; and

a drive mechanism configured to drive the sharpening assembly in rotation.

This grinding device presss from both sides tightly jointly with the subassembly that compresses tightly through the grinding disc of the subassembly of polishing and treats the piece of polishing, can drive the subassembly of polishing through actuating mechanism and rotate to polish a groove structure in one side of treating the piece of polishing, the required operating space of this grinding device is little, can install grinding device on treating the piece of polishing, need not to treat that the piece of polishing is dismantled, has improved processing high efficiency, has shortened processing cycle.

As a preferable scheme of the polishing device, the pressing assembly comprises a pressing disc, the pressing disc is sleeved on the rotating shaft, and the rotating shaft can rotate relative to the pressing disc.

Compress tightly the set cover and establish in the pivot, the pivot can with compress tightly set relative rotation for the pivot is rotating the in-process, avoids compressing tightly the dish and follows the pivot and rotate, and then makes to compress tightly the dish comparatively stable, compresses tightly effectually.

As a preferable scheme of the polishing device, one of the pressing disc and the member to be polished is provided with a positioning protrusion, and the other of the pressing disc and the member to be polished is provided with a positioning groove.

Through the setting of location arch and positioning groove, can play the effect of location to compressing tightly the dish, avoid compressing tightly the dish and remove.

As a preferable scheme of the polishing device, the pressing assembly further comprises a pressing handle, the pressing handle is connected with the pressing disc, and the pressing handle is arranged on one side of the pressing disc, which is far away from the polishing disc.

The pressing handle is arranged on one side of the pressing disc, which is far away from the polishing disc, so that the pressing disc can be prevented from moving by applying force towards the polishing disc through the pressing handle.

As a preferable mode of the above sanding device, the pressing handle includes:

one end of the connecting part is connected with the pressing disc; and

and one end of the holding part is connected with the other end of the connecting part, and the holding part and the connecting part are arranged at an included angle.

The pressing handle is convenient to be connected with the pressing disc and the holding portion through the connecting portion, the holding portion and the connecting portion are arranged at an included angle, and an operator can hold the pressing handle conveniently.

As a preferable mode of the above polishing device, the connecting portion is arranged in parallel with the rotating shaft.

The connecting part is arranged in parallel with the rotating shaft, so that the connecting part applies a force vertical to the pressing disc, and the pressing disc is prevented from moving due to component forces in other directions; and the appearance is beautiful.

As a preferable mode of the above polishing apparatus, the polishing disk includes:

the supporting disc is connected with the rotating shaft; and

the polishing part is arranged on one side of the supporting disc, which faces the compressing assembly, and the periphery of the rotating shaft is sleeved with the polishing part.

The arrangement of the supporting disc plays a role in supporting the polishing part; the setting of portion of polishing is used for treating the piece of polishing and polishes.

As a preferable mode of the polishing device, the polishing portion is detachably connected to the support plate.

The polishing part is detachably connected to the supporting disc, so that the polishing part can be replaced conveniently.

As a preferable embodiment of the above polishing device, the driving mechanism is detachably connected to the rotating shaft.

Actuating mechanism can dismantle with the pivot and be connected, is convenient for to the installation of the subassembly of polishing, can polish through the different grinding device of actuating mechanism drive moreover, convenient to use, nimble.

The invention also provides a grinding method of the aircraft skin, which is used for grinding the aircraft skin, wherein the aircraft skin is provided with a through hole, and the grinding method of the aircraft skin comprises the following steps:

placing the grinding assembly on the inner side of the aircraft skin, and enabling the rotating shaft to penetrate out of the inner side of the aircraft skin through the through hole;

installing the compression assembly on the rotating shaft, and clamping the aircraft skin with the grinding disc;

the rotating shaft is driven to rotate by the driving mechanism, so that the grinding disc grinds a groove structure on the inner side of the aircraft skin.

The grinding method for the aircraft skin can grind a groove structure on the inner side of the aircraft skin, the required space is small, the grinding device can be directly installed on the aircraft skin to be ground, the aircraft skin does not need to be disassembled, the operation is simple and convenient, and the processing period is shortened.

The invention has the beneficial effects that:

according to the polishing device provided by the invention, the polishing disc of the polishing assembly and the pressing assembly are used for clamping the workpiece to be polished together, the polishing assembly can be driven to rotate through the driving mechanism so as to polish one side of the workpiece to be polished to form a groove structure, the required operation space of the polishing device is small, the polishing device can be arranged on the workpiece to be polished, the workpiece to be polished does not need to be disassembled, the processing efficiency is improved, and the processing period is shortened.

The grinding method of the aircraft skin provided by the invention can grind a groove structure on the inner side of the aircraft skin, the required space is small, the grinding device can be directly installed on the aircraft skin for grinding, the aircraft skin does not need to be disassembled, the operation is simple and convenient, and the processing period is shortened.

Drawings

FIG. 1 is a first schematic structural diagram of a polishing apparatus provided by the present invention;

fig. 2 is a schematic structural diagram of a polishing device provided by the invention.

In the figure:

1. polishing the assembly; 11. grinding disc; 111. a support disc; 112. a polishing part; 12. a rotating shaft;

2. a compression assembly; 21. a compression disc; 211. positioning the projection; 22. a compression handle; 221. a connecting portion; 222. a grip portion.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment provides a grinding device for grinding a to-be-ground part, wherein the to-be-ground part is an aircraft skin. Treat to be provided with the through-hole on the piece of polishing, treat that grinding device is used for polishing out groove structure in the one side of treating the piece of polishing, as shown in figure 1 and figure 2, grinding device includes grinding component 1, compress tightly subassembly 2 and actuating mechanism (not shown in the figure), grinding component 1 is including the dish of polishing 11 and pivot 12 that link to each other, pivot 12 sets up in the central point of polishing dish 11 and puts, pivot 12 can pass the through-hole of treating the piece of polishing, compress tightly subassembly 2 and can overlap and establish in pivot 12 to press from both sides tightly together with polishing dish 11 and treat the piece of polishing, actuating mechanism is used for driving grinding component 1 and rotates.

This grinding device presss from both sides tightly jointly through the polishing disc 11 of the subassembly of polishing 1 and compresses tightly subassembly 2 and treats the piece of polishing, can drive the subassembly of polishing 1 through actuating mechanism and rotate to polish out the groove structure in one side of treating the piece of polishing, the required operating space of this grinding device is little, can install grinding device on treating the piece of polishing, need not to dismantle treating the piece of polishing, has improved processing high efficiency, has shortened processing cycle.

Optionally, the grinding disc 11 and the rotating shaft 12 are of an integral structure, the structure is simple, and the overall strength is high. Of course, the sanding disc 11 may also be detachably connected to the spindle 12, so that during installation, the sanding disc 11 may be mounted on the inside of the aircraft skin and the spindle 12 may be mounted from the outside of the aircraft skin, further reducing the space required for installation of the sanding device. Specifically, the connection mode of the polishing disc 11 and the rotating shaft 12 includes, but is not limited to, clamping, plugging, screwing, and the like.

As shown in fig. 1 and 2, the polishing disc 11 includes a supporting disc 111 and a polishing portion 112, the supporting disc 111 is connected to the rotating shaft 12, and the polishing portion 112 is disposed on one side of the supporting disc 111 facing the pressing assembly 2 and is sleeved on the outer periphery of the rotating shaft 12. The arrangement of the supporting disc 111 supports the grinding part 112; the polishing portion 112 is provided for polishing a workpiece to be polished. In this embodiment, the polishing portion 112 is a polishing sand skin, and a mounting hole is formed in the center of the polishing sand skin, so that the rotating shaft 12 can conveniently penetrate out of the mounting hole.

Optionally, the grinding part 112 is detachably connected to the support plate 111, so that the grinding part 112 can be replaced conveniently. Specifically, the one side of the sand skin of polishing towards supporting disk 111 sets up the gum, can paste on supporting disk 111 through the gum, and the sand skin of polishing also can be convenient for take off from supporting disk 111 moreover to the sand skin of polishing is changed.

As shown in fig. 1 and fig. 2, the pressing component 2 includes a pressing disc 21, the pressing disc 21 is sleeved on the rotating shaft 12, the rotating shaft 12 can rotate relative to the pressing disc 21, the rotating shaft 12 is prevented from rotating along with the rotating shaft 12 in the rotating process, the pressing disc 21 is stable, and the pressing effect is good.

Specifically, the central point that compresses tightly dish 21 puts and sets up the perforation, and pivot 12 wears to establish in the perforation, and the setting in perforation can play the effect of direction to pivot 12 for make the axis rotation that makes the mill 11 can wind the perforation.

In order to avoid the position change of the pressing disc 21 in the grinding process of the grinding device, a positioning protrusion 211 is arranged on one of the pressing disc 21 and the to-be-ground part, and a positioning groove is arranged on the other one of the pressing disc 21 and the to-be-ground part. Through the setting of location arch 211 and positioning groove, can play the effect of location to compressing tightly the dish 21, avoid compressing tightly the dish 21 and remove and rotate. In this embodiment, as shown in fig. 1, a positioning protrusion 211 is disposed on one side of the pressing disc 21 facing the polishing disc 11, and a positioning groove (not shown) is disposed on the member to be polished, so as to position the pressing disc 21 by extending the positioning protrusion 211 into the positioning groove.

Optionally, the pressing assembly 2 further includes a pressing handle 22, the pressing handle 22 is connected to the pressing disc 21, and the pressing handle 22 is disposed on a side of the pressing disc 21 away from the polishing disc 11, so that a force toward the polishing disc 11 can be applied to the pressing disc 21 by the pressing handle 22 to prevent the pressing disc 21 from moving.

Specifically, the pressing handle 22 includes a connecting portion 221 and a holding portion 222, one end of the connecting portion 221 is connected to the pressing plate 21, one end of the holding portion 222 is connected to the other end of the connecting portion 221, and the holding portion 222 and the connecting portion 221 are disposed at an included angle. The pressing handle 22 is conveniently connected with the pressing disk 21 and the holding part 222 through the connecting part 221, and the holding part 222 and the connecting part 221 are arranged at an included angle, so that an operator can conveniently hold the pressing handle.

Alternatively, the connecting portion 221 is disposed parallel to the rotating shaft 12, so that the connecting portion 221 applies a force perpendicular to the pressing disk 21, and prevents the pressing disk 21 from moving due to component forces in other directions; and the appearance is beautiful.

Optionally, the driving mechanism is detachably connected with the rotating shaft 12, so that the polishing assembly 1 can be conveniently installed, and can be polished by the driving mechanism and different polishing devices, and the polishing machine is convenient and flexible to use. In this embodiment, actuating mechanism is manual driving motor, can drive pivot 12 through manual driving motor and rotate, and convenient operation, flexibility can be fast, efficient accomplish and polish.

The embodiment also provides a grinding method of the aircraft skin, the grinding device is adopted to grind the aircraft skin, the aircraft skin is provided with a through hole, and a groove structure coaxial with the through hole is ground on the inner side of the aircraft skin by utilizing the through hole. The grinding method of the aircraft skin comprises the following steps:

the sanding block 1 is placed on the inside of the aircraft skin and the spindle 12 is passed out of the through-hole from the inside of the aircraft skin.

The hold-down assembly 2 is then mounted on the spindle 12 and clamps the aircraft skin with the sanding disc 11.

Specifically, the pressing disk 21 is mounted on the rotating shaft 12, the driving mechanism can apply a force to the rotating shaft 12, the force is far away from the aircraft skin along the circumferential direction of the rotating shaft 12, the pressing handle 22 is tightly held, the pressing disk 21 is pressed against the aircraft skin, and the pressing disk 21 and the polishing disk 11 clamp the aircraft skin.

The rotating shaft 12 is driven to rotate by the driving mechanism, so that the polishing disc 11 polishes a groove structure on the inner side of the aircraft skin.

In the polishing process, dust suction equipment is used for adsorbing and polishing the dropped powder.

The grinding method for the aircraft skin can grind a groove structure on the inner side of the aircraft skin, the required space is small, the grinding device can be directly installed on the aircraft skin to be ground, the aircraft skin does not need to be disassembled, the operation is simple and convenient, and the processing period is shortened.

In the description herein, it is to be understood that the terms "upper", "lower", "right", and the like are used in a descriptive sense or a positional relationship based on the orientation shown in the drawings for convenience of description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.