CN218611518U

CN218611518U - A dead axle ware that is used for rivet to demolish on aircraft skin

Info

Publication number: CN218611518U
Application number: CN202223006703.4U
Authority: CN
Inventors: 赵飞; 胡维刚; 张斌; 许正祥; 闵征; 杨彦云; 县子琦
Original assignee: Avic Tianshui Aviation Industry Co ltd
Current assignee: Avic Tianshui Aviation Industry Co ltd
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-03-14
Anticipated expiration: 2032-11-11

Abstract

The utility model provides a dead axle ware that is used for rivet to demolish on aircraft skin includes dead axle ware main part and handle. The shaft fixing device main body is of a cylindrical structure, and a circular guide hole is formed in the center axis of the shaft fixing device main body, so that a drill bit can enter the shaft fixing device main body from the upper side of the shaft fixing device main body. The end face of the lower end of the shaft fixing device body is provided with a round opening positioning groove communicated with the guide hole, and the axis of the guide hole passes through the center of a round opening of the positioning groove. The positioning groove is provided with a binding surface of the rivet head. The outer side surface of the shaft fixing device main body is connected with the handle. When the end face of the lower end of the shaft fixer body is attached to the surface of the aircraft skin, the rivet head is buckled by the positioning groove, and the attaching face of the rivet head is attached to the rivet head, the axis of the guide hole is the axis of the rivet. The dead axle device is simple in structure and low in cost, can quickly determine the axis of the rivet, can ensure that a drill bit drills downwards vertically, and avoids damaging holes and skins when the rivet is removed.

Description

A dead axle ware that is used for rivet to demolish on aircraft skin

Technical Field

The utility model belongs to the technical field of aviation repair tools, concretely relates to dead axle ware that is used for rivet to demolish on aircraft skin.

Background

The aircraft skin is fixedly mounted to the aircraft skeletal structure using a plurality of rivets, thereby forming the aerodynamic profile of the aircraft. In the flight process, the covering bears the aerodynamic action and transmits the acting force to the aircraft skeleton structure connected with the covering, the stress is complex, and therefore, once the rivet connection is loosened, or the replacement is not timely when the replacement is carried out, great potential safety hazards can be caused. Rivet removal is therefore often encountered during aircraft assembly and scheduled maintenance.

Currently, the standard procedure for rivet removal is to drill off the rivet head with a drill bit and then punch out the rivet stem with a rivet punch. The raised head rivet commonly used on the aircraft skin, for example, the rivet such as semicircle head, oblate head, because rivet nail head surface is an cambered surface, drill bit location rivet axis is difficult, and can't guarantee during drilling that the drill bit drills down perpendicularly, takes place inclined drilling, inclined drilling or running easily to cause the hole to be bored and hinder or the skin damage, in case the skin is damaged, can't restore, will lead to monoblock skin to scrap.

Therefore, a drill bit positioning device for removing the rivet on the skin of the airplane is urgently needed.

Disclosure of Invention

The utility model provides a dead axle ware that is used for rivet to demolish on aircraft skin carries out drill bit pinpoint when can demolish aircraft skin rivet, and guarantees that the drill bit bores under perpendicular to improve the rivet and demolish the success rate, reduce the skin and damage.

The technical scheme of the utility model is that:

the dead axle device for removing the rivet on the aircraft skin is characterized in that: comprises a main body of the dead axle device and a handle;

the main body of the shaft fixing device is of a cylindrical structure, and a circular guide hole is formed along the central axis of the main body, so that a drill bit can enter the main body from the upper part of the main body; the end surface of the lower end of the shaft fixer main body is provided with a positioning groove which is a round opening and is communicated with the guide hole, and the axis of the guide hole passes through the center of the round opening of the positioning groove; the positioning groove is provided with a rivet head binding surface which can be bound on the surface of the rivet head of the rivet to be detached; the outer side surface of the shaft fixing device main body is connected with the handle;

the handle is flat and comprises a hand holding part, a transition section and a connecting part; the handheld part is a straight section and is provided with a radius, so that an operator can conveniently and comfortably hold the handheld part; the connecting part is a straight section and is fixedly connected with the main body of the dead axle device; the transition section is connected with the holding part and the connecting part in a smooth transition mode, so that the holding part is higher than the connecting part, an operator can conveniently hold the holding part to apply force to tightly attach the main body of the dead axle device to the surface of the aircraft skin, the attaching surface of the head of the rivet can be tightly attached to the surface of the head of the rivet to be detached, and an auxiliary effect is achieved for accurately determining the axis of the rivet;

when the end face of the lower end of the shaft fixing device body is attached to the surface of the aircraft skin, the rivet head is buckled by the positioning groove, and the attaching face of the rivet head is attached to the rivet head, the axis of the guide hole is the axis of the rivet, and the shaft fixing function is completed.

Furthermore, the handle is clamped or welded with the main body of the dead axle device.

Furthermore, the diameter of the round opening of the positioning groove is matched with the diameter of the head of the rivet to be detached.

Furthermore, the shape of the binding surface of the rivet head of the positioning groove is matched with the shape of the surface of the rivet head to be detached, and the binding surface is processed according to the shape and specification of the rivet head to be detached.

Furthermore, the surface roughness of the binding surface of the rivet head of the positioning groove is 0.7.

Further, the main body and the handle of the dead axle device are made of metal.

Advantageous effects

The utility model provides a dead axle ware for removing rivets on aircraft skin, which can quickly determine the axes of the rivets by coaxially arranging a drill bit guide hole and a positioning groove at the head part of the rivet; the fixed shaft can be detached by different raised head rivets by processing binding surfaces of the rivet heads of different positioning grooves; the bottom surface of the cylinder props against the surface of the aircraft skin to ensure that the drill bit can vertically drill downwards, and the rivet is removed while the hole and the skin are prevented from being damaged.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention

FIG. 2 is an operational schematic diagram of an embodiment of the present invention

In the figure: 1. a main body of the shaft fixing device; 11. a guide hole; 12. positioning a groove; 13. binding surfaces of rivet heads; 2. a handle; 21. a hand-held portion; 22. a transition section; 23. a connecting portion; 3. a drill bit; 4. aircraft skin; 5. and riveting the nail head.

Detailed Description

The invention will be described in further detail with reference to the following description and embodiments with reference to the accompanying drawings:

as shown in fig. 1 and 2, the shaft fixing device for removing the rivets on the skin of the airplane in the embodiment comprises a shaft fixing device body 1 and a handle 2.

The shaft fixing device main body 1 is of a cylindrical structure, and a circular guide hole 11 is formed in the cylinder along the central axis of the cylinder and enables a drill bit 3 to enter from the upper side of the cylinder; the end surface of the lower end of the cylinder is provided with a positioning groove 12, the positioning groove 12 is a round opening and is communicated with the guide hole 11, and the axis of the guide hole 11 passes through the center of the round opening of the positioning groove 12; a rivet head binding surface 13 is arranged on the positioning groove 12 and can be bound on the surface of the rivet head 5 of the rivet to be detached; the outer side of the cylinder is connected to the handle 2.

The handle 2 is flat and comprises a hand holding part 21, a transition section 22 and a connecting part 23; the hand holding part 21 is a straight section and is provided with a radius, so that an operator can conveniently and comfortably hold the hand holding part; the connecting part 23 is a straight section and is fixedly connected with the shaft fixing device main body 1; the transition section 22 is connected with the hand holding part 21 and the connecting part 23 in a smooth transition mode, the position of the hand holding part 21 is higher than the connecting part 23, the shaft fixing device body 1 can be tightly attached to the surface of the aircraft skin 4 by means of hand holding force of an operator, and therefore the rivet head attaching surface 13 can be tightly attached to the surface of the rivet head 5 of the rivet to be detached, and an auxiliary effect is achieved for accurately determining the axis of the rivet.

When the end face of the lower end of the shaft fixer main body 1 is attached to the surface of the aircraft skin 4, the rivet head is buckled by the positioning groove 12, and the attaching face of the rivet head is attached to the rivet head 5, the axis of the guide hole 11 is the axis of the rivet, and the shaft fixing function is completed.

Further, the handle 2 is clamped or welded with the shaft fixing device body 1, and the connection mode in the embodiment is clamping.

Further, the diameter of the round opening of the positioning groove 12 is matched with the diameter of the rivet head 5.

Further, the shape of the rivet head binding surface 13 on the positioning groove 12 is matched with the shape of the surface of the rivet head 5 to be detached, and the rivet head binding surface 13 in the embodiment is in the shape of an oblate arc and is suitable for detaching a fixed shaft of an oblate head rivet.

Further, the surface roughness of the rivet head abutting surface 13 on the positioning groove 12 is 0.7.

Further, the shaft fixing device main body 1 and the handle 2 are made of 45-grade steel.

The utility model has simple structure, reasonable design and low cost, and can quickly determine the axis of the rivet by coaxially arranging the drill guide hole and the positioning groove of the rivet head; the shape of the fit surface of the rivet head on the positioning groove is processed, so that the riveting tool can be suitable for removing fixed shafts of different raised head rivets; the bottom surface of the cylinder props against the surface of the aircraft skin to ensure that the drill bit can vertically drill downwards, and the rivet is removed while the hole and the skin are prevented from being damaged.

Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.

Claims

1. A dead axle ware that is used for rivet removal on aircraft skin which characterized in that: comprises a main body of the dead axle device and a handle;

the main body of the shaft fixing device is of a cylindrical structure, and a circular guide hole is formed along the central axis of the main body, so that a drill bit can enter the main body from the upper part of the main body; the end surface of the lower end of the shaft fixer main body is provided with a positioning groove, the positioning groove is a round opening and is communicated with the guide hole, and the axis of the guide hole passes through the center of the round opening of the positioning groove; the positioning groove is provided with a rivet head binding surface which can be bound on the surface of the rivet head of the rivet to be detached; the outer side surface of the shaft fixing device main body is connected with the handle;

the handle is in a flat shape and comprises a hand holding part, a transition section and a connecting part; the handheld part is a straight section and is provided with a rounding; the connecting part is a straight section and is fixedly connected with the main body of the dead axle device; the transition section is connected with the holding part and the connecting part in a smooth transition mode, so that the holding part is higher than the connecting part;

2. A shaft setter for aircraft skin rivet removal as set forth in claim 1, wherein: the handle is clamped or welded with the shaft fixing device main body.

3. A shaft setter for aircraft skin rivet removal as set forth in claim 1, wherein: the diameter of the round opening of the positioning groove is matched with the diameter of the head of the rivet to be detached.

4. A shaft setter for aircraft skin rivet removal as set forth in claim 1, wherein: the shape of the binding surface of the rivet head on the positioning groove is matched with the shape of the surface of the rivet head to be detached.

5. A shaft setter for aircraft skin rivet removal as set forth in claim 1, wherein: the surface roughness of the binding surface of the rivet head on the positioning groove is 0.7.

6. A shaft setter for rivet removal on aircraft skin, as set forth in claim 1, wherein: the shaft fixing device main body and the handle are made of metal.