CN106270682B - The mechanically cutting method of special-shaped sheet metal component process allowance - Google Patents

The mechanically cutting method of special-shaped sheet metal component process allowance Download PDF

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Publication number
CN106270682B
CN106270682B CN201610842708.0A CN201610842708A CN106270682B CN 106270682 B CN106270682 B CN 106270682B CN 201610842708 A CN201610842708 A CN 201610842708A CN 106270682 B CN106270682 B CN 106270682B
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China
Prior art keywords
sheet metal
metal component
horizontal
blank
special
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CN201610842708.0A
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Chinese (zh)
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CN106270682A (en
Inventor
张树科
李保永
张素敏
王波
何艳涛
秦中环
赵亚东
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BEIJING HANGXING TECHNOLOGY DEVELOPMENT Co Ltd
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BEIJING HANGXING TECHNOLOGY DEVELOPMENT Co Ltd
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C3/00Milling particular work; Special milling operations; Machines therefor
    • B23C3/16Working surfaces curved in two directions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23CMILLING
    • B23C5/00Milling-cutters
    • B23C5/02Milling-cutters characterised by the shape of the cutter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06Work-clamping means
    • B23Q3/062Work-clamping means adapted for holding workpieces having a special form or being made from a special material

Abstract

The invention discloses a kind of mechanically cutting methods of special-shaped sheet metal component process allowance, and the blank of special-shaped sheet metal component is the Z-shaped structure being connected in sequence by first horizontal portion, first surface portion, rake, the second curved face part and the second horizontal part, and method includes:Step 1: part blank is placed on the tooling of bottom;Step 2: providing a locating piece tool, there are one horizontal bottom and four sides;Locating piece is set on part blank, first side is made to be bonded with the second curved face part;Step 3: providing patch shape pressing plate, a pair of patch shape pressing plate is set on part blank;Step 4: machine tool control system respectively cuts two sides with the distance between both sides theory side value control cutter according to second side, according to third side respectively with it is preceding it is theoretical while, it is rear theoretical while the distance between value control cutter front and back cut, to obtain the special-shaped sheet metal component of theoretical size.The present invention is simple, and it is convenient to clamp, and processing quality is stablized.

Description

The mechanically cutting method of special-shaped sheet metal component process allowance
Technical field
The invention belongs to sheet metal component technical field of mechanical processing more particularly to a kind of machineries of special-shaped sheet metal component process allowance Cutting method.
Background technology
Allotype aluminum alloy sheet metal component is in the fields such as aerospace and rail traffic using relatively broad.Such accessory appearance is wanted It asks higher, requires when assembly to dock with other rule sheet metal components, surface quality requirements are higher, in dedicated aluminium alloy laser cutting machine In the case of, the trimming by the way of mechanical processing is processing method more quickly and efficiently.
The method of relatively conventional sheet metal component removal process allowance is using the special process (including laser cutting, line at present Cutting, Water Cutting), but laser cutting and water cutting machine lathe somewhat expensive, processing charges is higher, the method processing effect of wire cutting Rate is relatively low.
Invention content
In view of the above technical problems, the present invention provides a kind of mechanically cutting method of special-shaped sheet metal component process allowance, Method is simple, and manufacturing cost is low, and the manufacturing cycle is short, easy to use, can control the deformation of process, ensures trimming quality, Ensure presentation quality.
Technical solution provided by the invention is:
A kind of mechanically cutting method of abnormity sheet metal component process allowance, the part blank of the abnormity sheet metal component is by first The Z-shaped structure that horizontal part, first surface portion, rake, the second curved face part and the second horizontal part are connected in sequence, and it is described First horizontal portion is located at relatively high position, and second horizontal position is in relatively low position, the method includes:
Step 1: bottom tooling is installed on lathe, the bottom tooling has first level face, inclined surface and second The part blank is placed on the bottom tooling by horizontal plane, and makes the first level face and first water Flat portion's fitting, the inclined surface are bonded with the rake, and second horizontal plane is bonded with second horizontal part, to make The bottom tooling provides support for the part blank;
Step 2: providing a locating piece tool, there are one horizontal bottom and four sides, wherein first side is curved surface, With the side adjacent with first side for second side, using the side opposite with first side as third side;It will The locating piece is set on the part blank, and the horizontal bottom is made to be bonded with second horizontal part, makes One side is bonded with second curved face part, to keep second side and the both sides theory side of the special-shaped sheet metal component flat Row, make third side and the special-shaped sheet metal component it is preceding it is theoretical while and when theory afterwards it is parallel;
Step 3: patch shape pressing plate is provided, the shape of the lower surface and the upper surface of the part blank of the patch shape pressing plate Unanimously, a pair of patch shape pressing plate is set on the part blank, a pair of of patch shape pressing plate is made to be bonded with the part blank, and A pair of patch shape pressing plate is distributed in the both sides of the locating piece;
Step 4: establish a coordinate system in machine tool control system, and determine the locating piece second side and Position of the third side in the coordinate system, according to the ruler of the theoretical size and the locating piece of the special-shaped sheet metal component It is very little, in advance in the machine tool control system be arranged second side between the theory side of both sides at a distance from value and third side Face respectively with it is preceding it is theoretical while, it is rear theoretical while the distance between value, the machine tool control system is according to second side in the seat Position and second side in mark system control cutter to the part blank with the distance between both sides theory side value respectively Two sides cut, according to third side in the coordinate system position and third side respectively with preceding reason By while, it is rear theoretical while the distance between value control cutter the front of the part blank and back cut, to process Obtain the special-shaped sheet metal component of theoretical size.
Preferably, in the mechanically cutting method of the special-shaped sheet metal component process allowance, the following table of the patch shape pressing plate The edge in face by fall it is blunt in the form of be arranged.
Preferably, in the mechanically cutting method of the special-shaped sheet metal component process allowance, the cutter is ball cutter.
Preferably, in the mechanically cutting method of the special-shaped sheet metal component process allowance, the bottom tooling is by more A plank is welded.
Preferably, in the mechanically cutting method of the special-shaped sheet metal component process allowance, the abnormity sheet metal component is different Shape aluminum alloy sheet metal component.
The mechanically cutting method of abnormity sheet metal component process allowance of the present invention is simple, can using common three axis lathe With processing, positioning is reliable, and it is convenient to clamp, and high in machining efficiency, processing cost is low, and processing quality is stablized, and can guarantee in process The surface of sheet metal component is not bruised, and trimming is substantially without tool marks.
Description of the drawings
Fig. 1 is the schematic diagram of process allowance in mechanically cutting method of the present invention;
Fig. 2 is scheme of installation of the part blank of special-shaped sheet metal component of the present invention on lathe.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text Word can be implemented according to this.
As depicted in figs. 1 and 2, the present invention provides a kind of mechanically cutting method of special-shaped sheet metal component process allowance, described different The part blank 2 of shape sheet metal component is horizontal by first horizontal portion 3, first surface portion 4, rake 5, the second curved face part 6 and second The Z-shaped structure that portion 9 is connected in sequence, and the first horizontal portion 3 is located at relatively high position, and second horizontal part 9 are located at relatively low position, the method includes:
Step 1: bottom tooling 10 is installed on lathe, the bottom tooling 10 has first level face 11, inclined surface 12 and second horizontal plane 13, the part blank 2 is placed on the bottom tooling, and make the first level face 11 It is bonded with the first horizontal portion 3, the inclined surface 12 is bonded with the rake 5, second horizontal plane 13 and described the Two horizontal parts 9 are bonded, to make the bottom tooling provide support for the part blank.Bottom tooling provides for part blank Support, makes part blank be stably placed on lathe, ensures construction precision.When bottom tooling is installed, need to beat table centering, Gu It is fixed tight.
Step 2: providing a locating piece tool, there are one horizontal bottom 14 and four sides, wherein first side 16 is Curved surface, with the side adjacent with first side 16 for second side, using the side opposite with first side 16 as third A side 15;The locating piece 1 is set on the part blank 2, and makes the horizontal bottom 14 and described second Horizontal part 9 is bonded, and first side 16 is made to be bonded with second curved face part 6, to make second side and the special-shaped metal plate The both sides theory side of golden part is parallel, makes the preceding theoretical 8 parallel at 7 and rear theory of third side and the special-shaped sheet metal component. There are one curved surface and three vertical sides for locating piece design, and curved surface is bonded completely with the second curved face part of part blank, to So that the relative position between locating piece and part blank is fixed and accurately, in subsequent working-up stages, passes through the position of determining locating piece The position on each theoretical side for being assured that out special-shaped sheet metal component is set, and then realizes and accurately processes.
Step 3: patch shape pressing plate is provided, the shape of the lower surface and the upper surface of the part blank of the patch shape pressing plate Unanimously, a pair of patch shape pressing plate is set on the part blank, a pair of of patch shape pressing plate is made to be bonded with the part blank, and A pair of patch shape pressing plate is distributed in the both sides of the locating piece.It is to make part hair to further fix part blank to paste shape pressing plate The position of base immobilizes.The shape for pasting shape pressing plate is consistent with part blank, so as to be completely against on part blank, changes Kind fixed effect.In addition, a common pressing plate can also be arranged on patch shape pressing plate, which is re-pressed against patch shape pressure On the upper surface of plate, patch shape pressing plate is further fixed.
Step 4: establish a coordinate system in machine tool control system, and determine the locating piece second side and Position of the third side in the coordinate system, according to the ruler of the theoretical size and the locating piece of the special-shaped sheet metal component It is very little, in advance in the machine tool control system be arranged second side between the theory side of both sides at a distance from value and third side Face is respectively with preceding theoretical the distance between 8 values in 7, rear theory, and the machine tool control system is according to second side described Position and second side in coordinate system control cutter 17 to the part with the distance between both sides theory side value respectively The two sides of blank are cut, according to third side in the coordinate system position and third side respectively with Preceding theoretical the distance between 8 values control cutter 17 in 7, rear theory cuts the front of the part blank and back, To which processing obtains the special-shaped sheet metal component of theoretical size.When second side and third side that locating piece is determined Specific location, and since the theoretical size of special-shaped sheet metal component is previously known, then second side can be pre-set Face to both sides theory while distance value and third side to it is preceding theoretical while 7, the distance value on rear theoretical side 8.After setting, machine Bed control system can control cutter and be cut to four sides of part blank, will exceed second side, third side Part except the respective distance value of face is cut away (part cut i.e. process allowance 6), you can to obtain meeting theoretical size Special-shaped sheet metal component.
Above-mentioned " preceding " and " rear " corresponds respectively to the left and right side in Fig. 1 and Fig. 2, and above-mentioned " both sides " then correspond to figure On the outside of paper in 1 and Fig. 2 and on the inside of paper.
The present invention is steadily fixed and has been precisely located to part blank, therefore, processes obtained special-shaped metal plate The precision of golden part is high, stable quality.
In a preferred embodiment, in the mechanically cutting method of the special-shaped sheet metal component process allowance, the patch The edge of the lower surface of shape pressing plate by fall it is blunt in the form of be arranged, to prevent in compaction process the upper surface in part blank to extrude Impression.
In a preferred embodiment, in the mechanically cutting method of the special-shaped sheet metal component process allowance, the knife Tool 17 is ball cutter.When processing Z-direction bevel edge, come into contact with part blank in cutting process, cutting force is small, cutting vibration It is small.
In a preferred embodiment, in the mechanically cutting method of the special-shaped sheet metal component process allowance, the bottom The manufacturing process of portion's tooling 10 is:First multiple planks are welded, then mill out first level face, inclined surface and the second horizontal plane.
In a preferred embodiment, described different in the mechanically cutting method of the special-shaped sheet metal component process allowance Shape sheet metal component is allotype aluminum alloy sheet metal component.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited In specific details and legend shown and described herein.

Claims (5)

1. a kind of mechanically cutting method of abnormity sheet metal component process allowance, which is characterized in that the part hair of the abnormity sheet metal component Base is the Z-shaped being connected in sequence by first horizontal portion, first surface portion, rake, the second curved face part and the second horizontal part Structure, and the first horizontal portion is located at relatively high position, and second horizontal position is in relatively low position, the side Method includes:
Step 1: bottom tooling is installed on lathe, the bottom tooling has first level face, inclined surface and second horizontal The part blank is placed on the bottom tooling by face, and makes the first level face and the first horizontal portion Fitting, the inclined surface are bonded with the rake, and second horizontal plane is bonded with second horizontal part, described to make Bottom tooling provides support for the part blank;
Step 2: providing locating piece tool, there are one horizontal bottom and four sides, wherein first side is curved surface, with The adjacent side in first side is second side, using the side opposite with first side as third side;It will be described Locating piece is set on the part blank, and the horizontal bottom is made to be bonded with second horizontal part, makes first Side is bonded with second curved face part, to keep second side parallel with the special-shaped both sides theory side of sheet metal component, is made Third side and the special-shaped sheet metal component it is preceding it is theoretical while and when rear theory it is parallel;
Step 3: providing patch shape pressing plate, the lower surface of the patch shape pressing plate is consistent with the shape of the upper surface of the part blank, A pair of patch shape pressing plate is set on the part blank, so that a pair of of patch shape pressing plate is bonded with the part blank, and a pair of Patch shape pressing plate is distributed in the both sides of the locating piece;
Step 4: establishing a coordinate system in machine tool control system, and determine second side and the third of the locating piece Position of a side in the coordinate system, according to the size of the theoretical size and the locating piece of the special-shaped sheet metal component, in advance First be arranged in the machine tool control system second side between the theory side of both sides at a distance from value and third side divide Not with it is preceding it is theoretical while, it is rear theoretical while the distance between value, the machine tool control system is according to second side in the coordinate system In position and second side respectively with the distance between both sides theory side value control cutter to the two of the part blank Side is cut, according to position of the third side in the coordinate system and third side respectively with preceding theoretical side, Value control cutter in the distance between theoretical side cuts the front of the part blank and back afterwards, to which processing is managed By the special-shaped sheet metal component of size.
2. the mechanically cutting method of abnormity sheet metal component process allowance as described in claim 1, which is characterized in that the patch shape pressure The edge of the lower surface of plate by fall it is blunt in the form of be arranged.
3. the mechanically cutting method of abnormity sheet metal component process allowance as claimed in claim 1 or 2, which is characterized in that the knife Tool is ball cutter.
4. the mechanically cutting method of abnormity sheet metal component process allowance as described in claim 1, which is characterized in that the bottom work Dress is to be welded by multiple planks.
5. the mechanically cutting method of abnormity sheet metal component process allowance as described in claim 1, which is characterized in that the abnormity metal plate Golden part is allotype aluminum alloy sheet metal component.
CN201610842708.0A 2016-09-22 2016-09-22 The mechanically cutting method of special-shaped sheet metal component process allowance Active CN106270682B (en)

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Publication number Priority date Publication date Assignee Title
CN109604409A (en) * 2018-11-06 2019-04-12 北京航星机器制造有限公司 Aluminium alloy abnormity sheet metal component preparation method and processing mold for rail traffic

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CN204487196U (en) * 2014-12-25 2015-07-22 重庆元创汽车整线集成有限公司 The tight mould of abnormity plate locating clip
CN105382313A (en) * 2015-12-25 2016-03-09 西安航天动力机械厂 Machining method for numerical control milling of thin-wall curved-surface irregular parts
CN205184968U (en) * 2015-11-30 2016-04-27 石刘学 Dysmorphism cutting machine panel fixed structure

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Publication number Priority date Publication date Assignee Title
CN102205487A (en) * 2011-04-29 2011-10-05 兴威电脑(昆山)有限公司 Method for machining metal plate by using laser cutting and numerical control press
CN102601432A (en) * 2012-03-22 2012-07-25 沈阳飞机工业(集团)有限公司 Efficient machining method of titanium alloy sheet parts
CN103358126A (en) * 2012-04-09 2013-10-23 桂林广陆数字测控股份有限公司 Cutting machining and laser machining combined sheet-metal machining center
CN103878427A (en) * 2014-04-02 2014-06-25 台山市国际交通器材配件有限公司 Formed cutter for machining hub window curved surface and milling method of formed cutter
CN204487196U (en) * 2014-12-25 2015-07-22 重庆元创汽车整线集成有限公司 The tight mould of abnormity plate locating clip
CN205184968U (en) * 2015-11-30 2016-04-27 石刘学 Dysmorphism cutting machine panel fixed structure
CN105382313A (en) * 2015-12-25 2016-03-09 西安航天动力机械厂 Machining method for numerical control milling of thin-wall curved-surface irregular parts

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