CN202622690U

CN202622690U - Nail extracting tool

Info

Publication number: CN202622690U
Application number: CN 201220231117
Authority: CN
Inventors: 钱加艳; 王娟
Original assignee: Xian Aircraft Industry Group Co Ltd
Current assignee: Xian Aircraft Industry Group Co Ltd
Priority date: 2012-05-22
Filing date: 2012-05-22
Publication date: 2012-12-26
Anticipated expiration: 2022-05-22

Abstract

The utility model relates to tools, in particular to a nail extracting tool for decomposing, cementing, solidifying or connecting a fastener in interference fit from a structure. The nail extracting tool consists of a chuck, a sliding hammer, a sliding rod and a handle. When the nail extracting tool is used, a nail rod required to be extracted is clamped in a U-shaped transverse groove of the chuck, the handle of the sliding rod is repeatedly impacted by using the sliding hammer, and the nail rod is extracted.

Description

A kind of nail pulling instrument

Technical field

The utility model relates to the instrument class, particularly relates to a kind of nail pulling instrument that from structural member, decomposes solidification by cement or interference engagement connection securing member.

Background technology

Alignment pin is the interim connector that is widely used in the assembly structure spare.In the aircraft assembling, use this new material of liquid packing as binding face sealant (being called for short wet the installation) especially in recent years in a large number, and make alignment pin dismantle unusual difficulty.Liquid packing is the epoxy resin material, and is very firm after the curing.It often is cured on groove, interlayer and the polished rod of alignment pin, and alignment pin is blocked in the fastener hole.Common way be with hammer strike, pliers is turned round or make the core bar fatigue fracture of alignment pin with blunderbuss cutter, goes out the remainder that remains in the fastener hole with punching pin then.This way not only makes alignment pin can suffer hundred-percent destruction, also is damaged to assembly parts most probably.And alignment pin is the interim connector that must use in the wet installation process, after encapsulant solidifies, divides again and takes off, and so just means that all alignment pins of participating in assembling all can be damaged, and production cost is big, and working strength of workers is very big.

The bolt of interference engagement is a most popular permanent connector in present aircraft and the machinery assembling.After bolt is installed, regular meeting owing to bolt length reason such as improper or troubleshooting need decompose and tear nail open.But the bolt of interference engagement is that bigger amount of interference realizes connecting between dependence screw rod and the hole, and dismounting is difficulty very.Present way is to knock bolt foot piece termination with riveting gun or hammer, until bolt is got from the hole.This method is prone to make bolt nail bar jumping-up, distortion and is stuck in that Kong Zhonggeng is difficult to be taken out.Another kind method is to use the drill bit littler No. than the aperture to hole at bolt head; Bolt head is separated with the nail bar; Use punching pin that bolt is got then, but because the bolt material overwhelming majority is a titanium alloy, the boring difficulty; And very easy that hole drill is inclined to one side in boring procedure, damage hole and proximity structure.Like this tear nail open, the possibility that the aperture is strengthened is very big, and is serious even can cause product rejection.

Summary of the invention

The purpose of the utility model is, a kind of nail pulling instrument that from structural member, decomposes solidification by cement or interference engagement connection securing member is provided.

For realizing above-mentioned purpose, the application provides following technical scheme:

A kind of nail pulling instrument is characterized in that being made up of dop, sliding hammer, slide bar, handle four parts, and described dop is the hollow structural component that there is the Long Circle opening lower end and side; Side at dop also has a U-shaped transverse groove near the lower end; The dop upper end is provided with screwed hole of centre, is connected with the threaded engagement of slide bar lower end, and handle is positioned at the top of slide bar; Described sliding hammer is socketed on the slide bar through centre bore, and sliding hammer can slide between dop and handle along slide bar.

During use, the nail bar that needs are extracted is stuck in the U-shaped transverse groove of nail pulling tool chuck, and the handle that the sliding hammer of use clashes into slide bar is repeatedly extracted the nail bar and got final product.

Compared with prior art; The remarkable result of the utility model is simple in structure, and is easy to operate, only needs to change the dop that matees with the difformity connector; Just can be implemented on the basis of not damaging existing connector and fast and effeciently tear nail open, avoid the secondary problem generation of rejecting and scrapping simultaneously.Reduce labor strength, practiced thrift production cost.

Below in conjunction with embodiment the application is done and to describe in further detail

Description of drawings

Fig. 1 is the application's nail pulling tool construction signal

Fig. 2 is the user mode signal of pulling out shop bolt

Fig. 3 is the user mode signal of pulling out bolt

Numbering explanation among the figure: 1 handle, 2 slide bars, 3 sliding hammers, 4 dops, 5 screw threads, 6 transverse grooves, 7 claws, 8 lateral openings, 9 alignment pin housing draw-in grooves, 10 alignment pin core bars, 11 alignment pin housings, six square nuts, 12 alignment pin caudal peduncles, 13 bolt heads, 14 bolt light rods

The specific embodiment

Referring to accompanying drawing 1; The nail pulling instrument of the utility model is spirally connected through screw thread 5 by handle 1, slide bar 2, sliding hammer 3 and dop 4 and forms, and the working portion of dop 4 has the claw 7 of an external Long Circle opening, and the top of claw 7 is transverse grooves 6 of a U-shaped; Be mainly used in and place the maximum solid part that is disassembled connector; Like the alignment pin housing draw-in groove 9 among Fig. 2, there is an oblong lateral opening 8 side of dop 4, is used to accept to be disassembled the entity of connector.

Referring to accompanying drawing 2 embodiment; The lateral opening 8 of its dop 4 is used to pull out alignment pin more easily; The claw 7 of dop part passes the alignment pin housing draw-in groove 9 that is disassembled on the alignment pin housing between two six square nuts 11 when using the nail pulling instrument; Alignment pin housing six square nuts 11 are placed oneself in the midst of in the transverse groove 6, be used to block the alignment pin that is disassembled, 12 of the caudal peduncles of alignment pin are hidden oneself in the lateral opening 8 of dop 4.Tension nail pulling handle for tool 1 guarantees that alignment pin is in vertical state in fastener hole, and along slide bar 2 iron hammer 3 that slides fast from bottom to top, bump handle 1 position utilizes impact that alignment pin is extracted from structural member.

Referring to accompanying drawing 3 embodiment, the dop 4 of another kind of form, the claw 7 of its lower end U-shaped transverse groove 6 pass the polished rod 14 of dismounting interference engagement bolt; Bolt head 13 is placed oneself in the midst of in the transverse groove 6; Be used to block the bolt that is disassembled, tension nail pulling handle for tool 1 is along slide bar 2 iron hammer 3 that slides fast from bottom to top; Bump handle 1 position utilizes impact that the interference engagement bolt is extracted from structural member.Realized the purpose that safety is torn nail open.

Sliding hammer in the enforcement is an ironware that centre bore is arranged, and minimum weight should be not less than 1 kilogram, and the optional majority kind of profile shape can be arrested with hand and to be advisable, and carve anti-skidding line.Sliding hammer centre bore is slightly larger than the slide bar diameter, is convenient to sliding hammer and on slide bar, can slides up and down.The length of slide bar depends on that needs produce the size of impact, and is little then short greatly then long, selects 300 ~ 500mm to be advisable usually.Slide bar and handle have been the effects of guiding, at first will set upright the connector that needs dismounting, could guarantee that connector removes smoothly.

Claims

1. a nail pulling instrument is characterized in that being made up of dop, sliding hammer, slide bar, handle four parts, and described dop is the hollow structural component that there is the Long Circle opening lower end and side; Side at dop also has a U-shaped transverse groove near the lower end; The dop upper end is provided with screwed hole of centre, is connected with the threaded engagement of slide bar lower end, and handle is positioned at the top of slide bar; Described sliding hammer is socketed on the slide bar through centre bore, and sliding hammer can slide between dop and handle along slide bar.