CN201598331U

CN201598331U - Chemical milling tooling

Info

Publication number: CN201598331U
Application number: CN2010200005125U
Authority: CN
Inventors: 万杰; 于四龙; 肖红; 张岩; 宋斌; 王朝琳
Original assignee: Harbin Aircraft Industry Group Co Ltd
Current assignee: Harbin Aircraft Industry Group Co Ltd
Priority date: 2010-01-07
Filing date: 2010-01-07
Publication date: 2010-10-06
Anticipated expiration: 2020-01-07

Abstract

A chemical milling tooling used for curved surfaces of ultra-large aluminum alloy thin plates. The integral shape of the tooling matches with the shape of a workpiece required to be chemically milled, reinforcing ribs are disposed on the outer side of the tooling, the amount of the reinforcing ribs is selected according to sizes of workpieces required to be chemically milled, and the periphery of the tooling is wider than the workpiece required to be chemically milled by at least 100 mm. The chemical milling tooling adopts composite materials so as to realize chemical milling effect better. After utilizing the tooling, the tooling and the workpiece which are identical in shape are fixed before chemical milling, thereby ensuring the workpiece and the tooling to move synchronously during the whole chemical milling process, and preventing the workpiece floating during a chemical milling process to have defects such as deformation, creases and the like. In addition, the workpiece after being chemically milled can meet requirements of drawing papers, and adhesion quality of chemically milled workpieces is guaranteed.

Description

A kind of milling frock

One, technical field

The utility model relates to a kind of milling frock, in particular for the milling frock in the super large Aluminium Alloy Plate curved surface.

Two, background technology

Chemistry milling is called for short milling, is in the industry-wide a kind of important aluminium alloy working method of Aeronautics and Astronautics.Milling technology can replace some Machining Technology, remove excess metal from the workpiece surface corrosion, to change its size and to alleviate its weight, in addition, when mechanical workout can not reach and milling can satisfy the workpiece design requirements time, also this kind processes can be adopted, all milling technology can be adopted as hyperboloid, large-area thin plate spare and other complex part.At present, generally do not use special tooling in the milling process, distortion often appears in the aluminum alloy curved thin plate of super large in the milling process, leak problems such as erosion, and workpiece milling district is prone to fold, the unequal defective of milling, can't satisfy the requirement of splicing operation subsequently.The aluminum alloy curved thin plate of super large is meant aluminum alloy plate materials thickness smaller or equal to 0.8mm, and plate is grown up in the curved sheets that equals 3m.

Three, summary of the invention

Defectives such as distortion, fold occur at the aluminum alloy curved thin plate of super large in the milling process, the utility model provides a kind of special tooling, avoids defectives such as distortion, folding line in the milling process preferably.

The technical scheme that the utility model is taked is: the global shape of frock is the shape of workpiece to be milled, and the frock arranged outside has strengthening rib, and the quantity of the strengthening rib size of milling workpiece is as required chosen, and frock is all around than treating the wide 100mm at least of going out of miller part.

In order better to realize the milling effect, the milling frock is taked matrix material.

After using frock, before milling, similar shape frock and workpiece are fixed, guarantee that workpiece and frock are synchronized with the movement in the whole chemical milling process, it is floating to avoid workpiece to take place in the milling process, defectives such as distortion and folding line appear, workpiece after the milling can satisfy the requirement of drawing, has guaranteed the bonding quality of milling workpiece.

Four, description of drawings

Fig. 1 is for treating miller part synoptic diagram, 1: milling zone, 2: protection glued membrane, 3: fixed orifices.

Fig. 2 is the utility model frock synoptic diagram, 10: hang the hole, 11: strengthening rib;

Fig. 3 is the scheme of installation of the utility model frock and workpiece, 10: hang the hole, 11: strengthening rib, 12: workpiece, 3: fixed orifices;

Fig. 4 is the utility model work synoptic diagram, 30: milling hanger, 31: frock, 12: workpiece.

Five, embodiment

For better explanation the present invention, provide workpiece tool one better embodiment in a kind of chemistry milling of the utility model below.

See also Fig. 1, it is the structural representation of workpiece tool one better embodiment in a kind of chemistry milling of the utility model.

Panel beating shaping mould according to workpiece is made special tooling.At first according to the thickness of workpiece, the layer overlay sheet lead is to reserve certain clearance on shaping mould; On sheet lead, use the thickness of compound material laying layer then, the strengthening rib 11 of frock arranged outside some amount, last spontaneous curing moulding to regulation.Because workpiece 12 reserves before milling at least that the 35mm surplus is used to bore fixed orifices 3, therefore, should go out 100mm at least than practical work piece is wide around the special tooling.

Before workpiece 12 millings, at first stick protection glued membrane 2, make milling zone 1 exposed in the zone that does not need milling; What get out diameter and be 3.5mm around frock 31 hangs hole 10; The milling workpiece is placed on the frock, determines the position of fixed orifices 3, on workpiece, get out enough fixed orificess 3 then; Pass through fixed orifices 3 with pin and pad then, workpiece 12 is fixed on the frock 31; So that workpiece and frock, prevent that frock is separated with workpiece in the milling process in conjunction with fastening; With tree lace tied with milling hanger 30 and be in the same place in the hole 10 of hanging on the frock 31 again, guarantee that workpiece 12 is stable in the milling process not float.

After using special tooling, before milling, adopt pin that similar shape frock and workpiece are fixed, guaranteed that workpiece and frock are synchronized with the movement in the whole chemical milling process, it is floating to avoid workpiece to take place in the milling process, defectives such as distortion and folding line appear, workpiece after the milling can satisfy the requirement of drawing, has guaranteed the milling quality of workpiece.

Claims

1. milling frock, the global shape of frock is the shape of workpiece to be milled, it is characterized in that: the frock arranged outside has strengthening rib, around the frock than treating the wide 100mm at least of going out of miller part.

2. milling frock according to claim 1 is characterized in that: milling frock and milling workpiece adopt pin to fix.