CN108580985A - A kind of milling method of large aluminum alloy melon lobed component - Google Patents
A kind of milling method of large aluminum alloy melon lobed component Download PDFInfo
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- CN108580985A CN108580985A CN201810409515.5A CN201810409515A CN108580985A CN 108580985 A CN108580985 A CN 108580985A CN 201810409515 A CN201810409515 A CN 201810409515A CN 108580985 A CN108580985 A CN 108580985A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, 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
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices 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
- B23Q3/06—Work-clamping means
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Abstract
The present invention provides a kind of milling method of large aluminum alloy melon lobed component, including uses a kind of Grinder, and described method includes following steps：Step 1: using the clamping of C-type clamp auxiliary and being fixed by bolts to melon lobed component, and it is specifically the wide end of first fixing component, the left and right sides of the length direction line of the close wide end of fixing component again, melon lobed component is fixed on the bearing plate of device by the then left and right sides of the length direction line of the close narrow end of fixing component；Step 2: first engraving product Molded Line on melon lobed component using milling cutter, then milling cutter is reference with product Molded Line, surplus milling is carried out to component according to milling path line on melon valve, milling path line forms bolt fixed ear around each bolt, finally to carrying out milling at bolt fixed ear.The milling method of melon lobed component in the method for the present invention corresponding to device is easy to operate, and product is accurate, and disposable qualification rate is high.
Description
Technical field
The invention patent relates to large thin-walled component surplus milling fields, complicated thin more particularly to a kind of aerospace
The device and method of wall member surplus milling.
Background technology
The preparation process of aluminium alloy bent member generally includes forming, accuracy detection, milling and welding.Wherein at
Shape refers to that tablet aluminium alloy is formed bent member using modes such as vacuum aging hot bendings.After accuracy detection mainly detects forming
Member type face precision (such as curvature) it is whether consistent with theoretical product.Milling be cut off the extra amount in component periphery and by structure
The size of part is turned down.Welding refers to the component with the component of other identical or different shapes to being welded together, such as six pieces or eight
The identical component of block forms a big component to being welded together.
Wherein, ultra-large type thin-wall aluminum alloy bent member (such as length reaches 4-8m, thickness 10-20mm) is past due to designing needs
Toward having complex curvatures shape, such as hyperbolicity elliposoidal tank end socket, accuracy detection and milling to this kind of aluminium alloy element are all
It is extremely difficult.
Middle-size and small-size thin-wall member (such as long axis direction size is 1m or so) generally use model or three after figuration manufacture
Scanner carry out type face accuracy detection is tieed up, forming accuracy is fixed on progress surplus milling in special tooling after meeting the requirements.Its
Middle model detection refers to the standard module (sample that first steel plate with plastics, gypsum or for example, 2mm thickness prepares an accuracy detection
Plate), then aluminium alloy element is covered on the top surface of the model, see between model and component whether be bonded, especially the four of component
Week, whether place to be welded was bonded completely with model.And spatial digitizer accuracy detection mode using laser scanner workpiece
It in type Surface scan to computer, then is compared with the standard type face in computer, thus judges whether the type face precision of component is qualified.
If patent of invention CN201510283921.8 discloses a kind of laser on-line measurement machining and testing method and device, by Laser Measuring
Amount, processing and detection are integrated in one, it can be achieved that laser machining the plane or surface geometry size of preceding on-line measurement workpiece to be processed
Pattern obtains true planar or spatial constructional dimensions and feature, eliminates workpiece to be processed because being produced in early period working process flow
Error between the caused and theoretical digital-to-analogue of raw deformation or secular distortion, improves laser processing precision and quality.Device packet
Include processing laser, light path system and the laser Machining head being sequentially located in same light path；Further include laser ranging system, calculates
Machine control system, moving assembly and workbench；Laser ranging system is used to obtain the forward and backward measurement data of work pieces process, including
The spatial value and normal angle of workpiece every, and it is supplied to computer control system.The device can be with bidimensional platform and three
Measurement of curved surface and detected size precision and quality are tieed up, and laser processing precision and quality can be improved.
The above method is effective only for middle-size and small-size thin-wall member.And it is directed to ultra-large type complex curvatures component, certainly due to itself
The larger and long axis direction size of weight is larger, and it is weaker to show overall stiffness, and dead weight is in different modes of emplacement to thin-wall member
Under deformation effect it is very important, all can not be accurate using conventional middle-size and small-size thin-wall member model and spatial digitizer method
The forming accuracy of detection means, and it also requires additionally manufacturing a set of tooling carries out the remaining of subsequent large aluminum alloy bent member
Milling is measured, cost is caused to increase.
The surplus milling of aluminium alloy bent member is referred to, the mode being currently mainly used has the following two kinds, and one is use
Vacuum absorption device, i.e., comprising many root vacuum suction columns for erectting setting in whole device, the height of every pillar is adjustable,
Adjust each pillar height adjust device top surface shape be it is consistent with member type face after, component is covered in device top surface
On, then vacuumize component vacuum suction on such devices.Such as patent CN201210491214.4 provides one kind for thin
The vacuum suction system that plate milling grips, it include vacuum platform, pedestal, rubber weather strip, pipeline, digital display vacuum meter,
And vacuum pump；Vacuum platform is located at the upper surface of pedestal, and rubber weather strip is positioned in the seal groove on pedestal and vacuum platform, pipe
It is route screw thread gas nozzle, four fluorine tube, cutting ferrule, three-way connection, threaded connector composition, it connects pedestal, digital display vacuum meter, vacuum pump
It picks up and；A kind of application method of the vacuum suction system gripped for thin plate milling, this method have seven big steps.The hair
It is bright preferably to solve the dress of workpiece by the way that sheet part to be equably absorbed and fixed on vacuum platform using vacuum technique
Problem on deformation is pressed from both sides, the Milling Process precision of part is improved, improves the processing quality of part.It is in technical field of mechanical processing
In have preferable practical value and wide application prospect.The device uses conveniently, but its is at high price, such as in the present invention
The price of the corresponding vacuum absorption device of large aluminum alloy bent member is up to millions of RMB.Another aluminium alloy is curved
The surplus milling mode of bent component is that aluminium alloy bent member is allowed to stand, with including several longitudinal clamp systems and horizontal clamping
The device of mechanism is used for milling after being fixed.The device operates fairly cumbersome, and up to three or four meters of milling lathe
Also rarely found.
Therefore, this field needs a kind of type face essence that can accurately detect the large aluminum alloy bent member containing complex curvatures
Degree and the set composite and method that convenient surplus milling can be carried out to it, especially need to provide a kind of large aluminum alloy melon valve
The milling method of shape component.
Invention content
The present invention provides a kind of milling method of large aluminum alloy melon lobed component, including uses a kind of Grinder, institute
It includes that plate face erects the polylith snap-gauge that setting is used to support aluminium alloy element to state Grinder, on the top that polylith snap-gauge is collectively formed
The periphery in face is provided with the narrow type panel of surrounding, and the centre of the top surface and polylith snap-gauge top surface of the narrow type panel of surrounding is common
Forming apparatus top surface, device top surface is consistent with the theoretical profile of aluminium alloy element product, the width of the narrow type panel of surrounding
For 30~200mm, its periphery at least covers on partial-length and stretches out the narrow type panel of surrounding before the component milling, four
Week, narrow type below the panel was further fixedly arranged on bearing plate, and it is narrow to be at least more than surrounding in the width of part of its periphery position bearing plate
The width of type panel, described device further include for stretching out component other than surrounding narrow type panel periphery before component milling
Part is fixedly connected with bearing plate to wait for the bolt of milling component；Described method includes following steps：
Step 1: fixed melon lobed component：It is placed on device and the melon lobed structure of accuracy detection qualification to located
Part is using the clamping of C-type clamp auxiliary and is fixed by bolts, and the wide end of specifically first fixing component, then fixing component are close
The left and right sides of the length direction line of wide end, then left and right sides of the length direction line of the close narrow end of fixing component,
Melon lobed component is fixed on the bearing plate of device；
Step 2: carrying out surplus milling to melon lobed component：After fixing component, first use milling cutter in the upper of melon lobed component
Surface engraves product Molded Line, then milling cutter with product Molded Line be reference, on melon valve according to milling path line to component into
Row surplus milling, milling path line form bolt fixed ear around each bolt, finally to carrying out milling at bolt fixed ear.
In the present invention, " top surface that polylith snap-gauge is collectively formed " refers to the common shape of polylith snap-gauge after welding is integral
At whole top surface, " centre of polylith snap-gauge top surface " refers to the top surface periphery in addition to being covered by the narrow type panel of surrounding
Other places other than position refer to (being surrounded by the narrow type panel of surrounding by what the peripheral part of polylith snap-gauge top surface surrounded
) central area.
In a kind of specific embodiment, in step 1, first passes through 2~4 pairs of C-type clamps and press from both sides the both sides of melon valve component
Tightly, it carries out punching blending bolt to the wide end of melon valve component by CNC milling cutter to be fixed so that the wide end and pressure-bearing of component
It is bolted between plate, then removes the C-type clamp and the two side portions close to melon valve component wide end is clamped with C-type clamp,
So that the inner bottom surface of melon valve component and the upper surface of the narrow type panel of surrounding are adjacent to, using CNC milling cutter to melon valve component close to wide
The two side portions at end carry out punching blending bolt and fix；Finally remove at this C-type clamp and with C-type clamp to close to melon valve component narrow end
Two side portions clamp, using CNC milling cutter to melon valve component close to the two side portions of narrow end carry out punching blending bolt fix,
It completes to remove C-type clamp after whole bolts are fixed.
In a kind of specific embodiment, in step 2 when to carrying out milling at bolt fixed ear, first reservation 1~
The thickness of 3mm is not cut off, and cutter is damaged to prevent melon valve member springs back；The bolt fixed ear that last manual excision machine is not cut.
In a kind of specific embodiment, Molded Line (21) has been portrayed downwards on the surrounding narrow type panel top surface
And/or offer blind slot shape downwards allows cutter groove (22).
In a kind of specific embodiment, the snap-gauge be containing on plate thickness direction be through hole shape hole to drop
The hollowed-out board of low dead weight, and the polylith snap-gauge includes the longitudinal snap-gauge being arranged in a mutually vertical manner and lateral snap-gauge.
In a kind of specific embodiment, the spacing between parallel two pieces of adjacent longitudinal snap-gauges is 0.3m or more, parallel
Spacing between the lateral snap-gauge of adjacent two pieces is 0.3m or more.
In a kind of specific embodiment, the spacing between parallel two pieces of adjacent longitudinal snap-gauges is 0.4~0.6m, parallel
Spacing between the lateral snap-gauge of adjacent two pieces is 0.4~0.6m.
In a kind of specific embodiment, the width of the narrow type panel of surrounding is 40~150mm, and the surrounding is narrow
The thickness of width type panel is 10~30mm, and the thickness of the preferably described narrow type panel of surrounding is 12~20mm.
In a kind of specific embodiment, the aluminium alloy bent member is melon lobed component, the four of described device
Two radical theory lines are set on week narrow type panel and two allow cutter groove, and described cutter groove are allowed to be arranged on a left side for component length direction line
Right both sides, and Molded Line setting is in wide end corresponding with surface member width direction and narrow end, and the two close components for allowing cutter groove
The side line of center and two radical theory lines collectively form the target size size of component product.
In a kind of specific embodiment, the bearing plate is arranged at 10~100mm of the narrow type below the panel of surrounding,
It is preferred that at 30~60mm, and bearing plate, with the narrow type panel parallel setting of surrounding or close to being arranged in parallel, bearing plate fixes welding
On snap-gauge.
In a kind of specific embodiment, the total quantity of the bolt is 6~20, and scattering device is the four of component
Week.
In a kind of specific embodiment, described that the width of cutter groove is allowed to be 12~20mm, depth is 5~10mm.
In a kind of specific embodiment, described device further includes being placed before accuracy detection for positioning component
Positioning element on device, and the positioning element includes the location hole being arranged on bearing plate and shop bolt and/or institute
It includes the position line being arranged on device to state positioning element.
The present invention at least has advantageous effect as described below compared with prior art：
1, the present invention proposes one kind for large thin-walled component type face accuracy detection and avoids dead weight and weak separation effect type
The detection method and device of face precision have many advantages, such as that efficient, accuracy of detection is high.
2, the set composite that designs of the present invention while having the function of member type face accuracy detection and surplus milling function, avoid
The other a set of surplus milling tooling of redesign, is greatly saved manufacturing cost and time cost.
3, the milling method of the melon lobed component in the method for the present invention corresponding to device is easy to operate, and product is accurate, once
Property qualification rate it is high.
Description of the drawings
Fig. 1 is smart in type face for the type face accuracy detection and milling set composite of large aluminum alloy bent member of the present invention
Structural schematic diagram when degree detection.
Fig. 2 is the structural representation of the narrow type panel of surrounding and its partial enlarged view in set composite.
Fig. 3 set composite structural schematic diagrams when being milling component.
In figure, 1- snap-gauges, the longitudinal directions 11- snap-gauge, 12- transverse direction snap-gauges, the narrow type panel of 2- surroundings, 21- Molded Lines, 22- allows
Cutter groove, the sides 221- line, 3- bearing plates, 4- bolts, 01- aluminium alloy elements, 011- milling path lines.
Specific implementation mode
Present invention firstly provides a kind of large thin-walled component type face accuracy detections and surplus milling composite tooling (compound dress
Set), as shown in Figure 1, its essential characteristic includes, tooling has the function of thin-wall member type face accuracy detection and surrounding surplus milling simultaneously
Cut function；The tooling carries out general frame using snap-gauge and is welded, and snap-gauge includes lateral snap-gauge and longitudinal snap-gauge, in precision
Before detection the tooling mainly by snap-gauge 1, the narrow type panel 2 of surrounding, be arranged on the narrow type panel of surrounding 2 allow 22 and of cutter groove
Molded Line 21, bearing plate 3 form, such as Fig. 1.Lateral snap-gauge and longitudinal snap-gauge are 10mm steel plates, to realize weight loss effect simultaneously
Ensure enough strength and stiffness, snap-gauge centre trepanning.Surrounding welding 75mm × 18mm in integral frame tooling top surface is (wide
× thick) narrow type face, (the narrow type panel width of surrounding i.e. on the inside of Molded Line 21 is by such as Fig. 2,50mm wherein in theoretical profile
50mm), the outer 25mm of theoretical profile (i.e. the narrow type panel width of surrounding in 21 outside of Molded Line is 25mm), the part in theoretical profile
Primarily to the gap in the thin-wall member type face and theoretical profile that do not detected after comparison hot bending, i.e. type face accuracy detection, theoretical
Part outside type face is the stability to reinforce when thin-wall member is born in narrow type face；It is narrow at left and right sides of tooling length line direction
The cutter groove that allows that milling 15mm × 6mm (wide × deep) is opened on width type face, allows cutter groove medial surface edge line (side line 221) to be theoretical melon valve
Line, such as Fig. 2；Molded Line is carved on the narrow type face of tooling wide end and narrow end；Thin-wall member passes through spiral shell after the completion of accuracy detection
Bearing plate 3 on bolt connecting tooling is fixed.After the completion of whole parts are fixed, numerical control finish-milling in tooling upper surface preliminarily forms thin
Wall member theoretical profile.
Specifically, the present invention provides a kind of type face accuracy detection of large aluminum alloy bent member and milling set composite,
The polylith snap-gauge 1 that setting is used to support aluminium alloy element, the periphery in the top surface that polylith snap-gauge is collectively formed are erect including plate face
It is provided with the narrow type panel 2 of surrounding, dress is collectively formed in the centre of the top surface and polylith snap-gauge top surface of the narrow type panel of surrounding 2
Top set face, device top surface is consistent with the theoretical profile of aluminium alloy element product, and the width of the narrow type panel of surrounding is 30~
200mm portrays downwards Molded Line 21 on the surrounding narrow type panel top surface and/or offers the knife that allows of blind slot shape downwards
Slot 22, the component its periphery before type face accuracy detection and milling at least cover on partial-length and stretch out the narrow type of surrounding
Panel is further fixedly arranged on bearing plate 3 in the narrow type below the panel of surrounding, at least big in the width of part of its periphery position bearing plate
In the width of the narrow type panel of surrounding, described device further includes for component to be stretched out the narrow type of surrounding after component accuracy detection
Part other than panel periphery is fixedly connected with bearing plate to wait for the bolt 4 of milling component.
In this embodiment, product theoretical profile is to cover the inner bottom surface for being located at the aluminium alloy bent member on device.
In a kind of specific embodiment, the snap-gauge be containing on plate thickness direction be through hole shape hole to drop
The hollowed-out board of low dead weight, and the polylith snap-gauge includes the longitudinal snap-gauge 11 being arranged in a mutually vertical manner and lateral snap-gauge 12.
In a kind of specific embodiment, the spacing between parallel two pieces of adjacent longitudinal snap-gauges is 0.3m or more, parallel
Spacing between the lateral snap-gauge of adjacent two pieces is 0.3m or more.
In a kind of specific embodiment, the spacing between parallel two pieces of adjacent longitudinal snap-gauges is 0.4~0.6m, parallel
Spacing between the lateral snap-gauge of adjacent two pieces is 0.4~0.6m.
In the present invention, excessively dilute intensity requirement for being just difficult to reach device is arranged to obtain in snap-gauge, and it is hundreds of thousands of can not to prop up monoblock
The aluminium alloy element of jin, and device is easily deformed when lifting whole device.Snap-gauge is arranged overstocked, and welder hardly enters wherein
Welding.In the specific embodiment of the invention, between the spacing and adjacent two pieces of lateral snap-gauges between the adjacent two pieces of longitudinal snap-gauges of the present invention
Spacing be 0.43m.In the present invention, the whole height of the height forming apparatus of snap-gauge, such as between 1.1~1.5m.
In a kind of specific embodiment, the width of the narrow type panel of surrounding is 40~150mm, and the surrounding is narrow
The thickness of width type panel is 10~30mm.
In a kind of specific embodiment, the thickness of the narrow type panel of surrounding is 12~20mm.
In the present invention, when the narrow type panel width of surrounding is wide, burden weight that is useless and having aggravated device, and its
When width is narrow, it is difficult to width be set on it and suitably allow cutter groove, and in accuracy detection to the support effect on component periphery
Difference.When the thickness of the narrow type panel of surrounding is blocked up, the difficulty that itself forms out is become larger, and when its thickness is excessively thin,
Its poor rigidity influences the detection of member type face precision.
In a kind of specific embodiment, the aluminium alloy bent member is melon lobed component, the four of described device
Two radical theory lines are set on week narrow type panel and two allow cutter groove, and described cutter groove are allowed to be arranged on a left side for component length direction line
Right both sides, and Molded Line setting is in wide end corresponding with surface member width direction and narrow end, and the two close components for allowing cutter groove
The side line (221) of center collectively forms the target size size of component product with two radical theory lines.
In the present invention, the scantling periphery that is obtained after milling is all higher than is formed by mesh by surrounding Molded Line and side line
Mark the size of component product.In the milling step of the present invention, setting two allows milling obtains at cutter groove component than final production
The unilateral surplus for reserving 5mm of product, for subsequently with the melon lobed component butt welding of same shape when reserve operation surplus.And wide end
At two radical theory lines of narrow end, the component surplus for reserving 50mm more unilateral than final products that milling obtains, for subsequently with
Operation surplus is reserved when the Member Welding of other different shapes and structure.Therefore, in milling step, the length direction of component because
To allow the setting of cutter groove without milling to the narrow type panel of surrounding, the wide end of component and narrow end direction are larger because of reserved surplus
(Molded Line only 25mm at a distance from the narrow type panel outer edge of surrounding, less than the surplus 50mm that need to be reserved) and make joint-cutting four
Week narrow type panels outside, thus equally will not milling to the narrow type panel of surrounding.In the type to large aluminum alloy bent member
When accuracy detection is done in face, by clearance gauge plug to the narrow type panel of surrounding, and specific is usually by clearance gauge plug to Molded Line and to allow
At the madial wall line of cutter groove and within position, whether the type face precision that can accurately measure component qualified.
In a kind of specific embodiment, the bearing plate is arranged at 10~100mm of the narrow type below the panel of surrounding,
It is preferred that at 30~60mm, and bearing plate, with the narrow type panel parallel setting of surrounding or close to being arranged in parallel, bearing plate fixes welding
On snap-gauge.
In a kind of specific embodiment, the total quantity of the bolt is 6~20, and scattering device is the four of component
Week.For example, two allow five bolts of each uniform arrangement by cutter groove, and two bolts are added again in the wide end of component.
In a kind of specific embodiment, described that the width of cutter groove is allowed to be 12~20mm, depth is 5~10mm.
In a kind of specific embodiment, described device further includes being placed before accuracy detection for positioning component
Positioning element on device, and the positioning element includes the location hole being arranged on bearing plate and shop bolt and/or institute
It includes the position line being arranged on device to state positioning element.
Specifically, the location hole being arranged on bearing plate is, for example, 15~20mm of diameter, aluminium alloy element be tablet not
The positioning through hole of 15~20mm of diameter is accordingly just set at its edge before hot bending, shop bolt correspondence is reused after component hot bending and is inserted
If the positioning through hole on location hole and component on the bearing plate, you can so that component accurate positionin is placed on the compound dress
It sets.When the positioning element also includes position line, the width and depth of the position line are for example 0.1~0.2mm.It is excellent
It includes hole finger setting to select in the positioning element, in this way will become more apparent that intuitive, is conveniently operated.In the present invention, including portray four
Molded Line on all narrow type panels is portrayed before portraying the position line on device, and follow-up milling on member upper surface
Product Molded Line, width and depth are generally 0.1~0.2mm.
The operating method of set composite of the present invention includes the type face accuracy detection step successively carried out and surplus milling
Step, and specifically include：
Step A, positioning is placed：Aluminium alloy element positioning after hot bending is placed on the set composite；In step A,
Aluminium alloy element positioning is placed on the set composite especially by positioning element.The positioning element includes setting
Location hole and shop bolt and/or the positioning element on bearing plate include the position line being arranged on device.Such as make
When being positioned to component with position line, specifically include first before the processing of thin-wall member blank hot bending in centre of surface symmetric position
Tiny position line is milled out, tooling surface is placed on after component forming, makes the position line on component and the position line weight on tooling surface
It closes.
Step B, type face accuracy detection：After component positioning member type face and reason at the narrow type panel of surrounding are measured using clearance gauge
By the gap in type face, check whether to meet the requirements；In step B, specifically use clearance gauge measure theory line and the side line common
The gap of position within the component product dimension line of composition.
Step C, component is fixed：After member type face to be detected precision is met the requirements, using in bolt connecting elements and tooling
Bearing plate, component is fixed；In step C, the schematic diagram using the bearing plate in bolt connecting elements and tooling is shown in figure
3。
Step D, surplus milling is carried out to component：After component is fixed, Numerical Control Programming makes milling cutter according to desired guiding trajectory pair
Component carries out surplus milling.
The present invention also provides a kind of milling methods of large aluminum alloy melon lobed component, including use a kind of Grinder,
The Grinder includes that plate face erects the polylith snap-gauge 1 that setting is used to support aluminium alloy element, is collectively formed in polylith snap-gauge
The periphery of top surface be provided with the narrow type panel 2 of surrounding, the central part of the top surface and polylith snap-gauge top surface of the narrow type panel of surrounding 2
Device top surface is collectively formed in position, and device top surface is consistent with the theoretical profile of aluminium alloy element product, the narrow type panel of surrounding
Width be 30~200mm, its periphery at least covers on partial-length and stretches out the narrow type face of surrounding before the component milling
Plate is further fixedly arranged on bearing plate 3 in the narrow type below the panel of surrounding, is at least more than in the width of part of its periphery position bearing plate
The width of the narrow type panel of surrounding, described device further include for stretching out component outside the narrow type panel of surrounding before component milling
Part other than week is fixedly connected with bearing plate to wait for the bolt 4 of milling component；Described method includes following steps：
Step 1: fixed melon lobed component：It is placed on device and the melon lobed structure of accuracy detection qualification to located
Part is using the clamping of C-type clamp auxiliary and is fixed by bolts, and the wide end of specifically first fixing component, then fixing component are close
The left and right sides of the length direction line of wide end, then left and right sides of the length direction line of the close narrow end of fixing component,
Melon lobed component is fixed on the bearing plate of device；
Step 2: carrying out surplus milling to melon lobed component：After fixing component, first use milling cutter in the upper of melon lobed component
Surface engraves product Molded Line, then milling cutter with product Molded Line be reference, on melon valve according to milling path line to component into
Row surplus milling, milling path line form bolt fixed ear around each bolt, finally to carrying out milling at bolt fixed ear.
In the present invention, the plane projected shape of the melon lobed component is approximately isosceles trapezoid, the melon lobed component
Wide end is equivalent to the bottom of isosceles trapezoid, and narrow end is equivalent to the upper bottom edge of isosceles trapezoid, the left and right sides of length direction line
While being equivalent to two waists of isosceles trapezoid.The four edges of " isosceles trapezoid " of the plane projection of melon lobed component are generally all and non-straight
Line, but have certain radian.Described melon lobed component itself contains complex curvatures, for example, in two perpendicular directions it is two-way all
There is certain curvature.
Specifically, the present invention in for force C-type clamp handle exist, C-type clamp clamp downwards the melon lobed component and
Bearing plate.In the present invention, the fixed precision of bolt and fixed efficiency are all higher than C-type clamp, thus are assisted using C-type clamp, use bolt
Fastening.
It, generally can be in the narrow type panel of surrounding in order to provide the accurate test position of clearance gauge when accuracy detection in the present invention
Upper setting Molded Line can also generally portray product Molded Line and milling path line in of the invention on the upper surface of melon valve component,
Whether to need to do a small amount of cutting again and provide reference when the effect of product Molded Line is subsequently to weld.
In a kind of specific embodiment, in step 1, first passes through 2~4 pairs of C-type clamps and press from both sides the both sides of melon valve component
Tightly, it carries out punching blending bolt to the wide end of melon valve component by CNC milling cutter to be fixed so that the wide end and pressure-bearing of component
It is bolted between plate, then removes the C-type clamp and the two side portions close to melon valve component wide end is clamped with C-type clamp,
So that the inner bottom surface of melon valve component and the upper surface of the narrow type panel of surrounding are adjacent to, using CNC milling cutter to melon valve component close to wide
The two side portions at end carry out punching blending bolt and fix；Finally remove at this C-type clamp and with C-type clamp to close to melon valve component narrow end
Two side portions clamp, using CNC milling cutter to melon valve component close to the two side portions of narrow end carry out punching blending bolt fix,
It completes to remove C-type clamp after whole bolts are fixed.In the present invention, it will make the interior of melon valve component during fixed melon valve component
Upper surface of the periphery of bottom surface completely with the narrow type panel of surrounding is adjacent to, to ensure to carve on following process precision and melon valve component
The accuracy of the product Molded Line of picture.In the present invention, before component fixation, the component of accuracy detection qualification generally only has both sides
A little be not bonded close to the place of wide end, and wide end, narrow end and both sides close to the place of narrow end it is general itself be all bonded compared with
It is good.In the present invention, when using the both sides of C-type clamp clamping components, C-type clamp is staggered one section with bolt on component length line direction
Distance, so as to component trepanning and installation bolt fixing component.
In a kind of specific embodiment, in step 2 when to carrying out milling at bolt fixed ear, first reservation 1~
The thickness of 3mm is not cut off, and cutter is damaged to prevent melon valve member springs back；The bolt fixed ear that last manual excision machine is not cut.
In the present invention, the thickness of the melon valve component is, for example, 18mm, and each bolt is generally got around at the initial stage of milling
Place forms bolt fixed ear, and component is allowed to be fixed on bearing plate betterly during entire milling.
In a kind of specific embodiment, Molded Line 21 has been portrayed downwards on the surrounding narrow type panel top surface
And/or offer blind slot shape downwards allows cutter groove 22.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific implementation of invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, not
Under the premise of being detached from present inventive concept, several simple deductions and replacement can also be made, all shall be regarded as belonging to the guarantor of the present invention
Protect range.
Claims (10)
1. a kind of milling method of large aluminum alloy melon lobed component, including a kind of Grinder is used, the Grinder packet
Erect the polylith snap-gauge (1) that setting is used to support aluminium alloy element, the periphery in the top surface that polylith snap-gauge is collectively formed in rubbing board face
It is provided with the narrow type panel (2) of surrounding, the common shape in centre of the top surface and polylith snap-gauge top surface of the narrow type panel (2) of surrounding
At device top surface, device top surface is consistent with the theoretical profile of aluminium alloy element product, and the width of the narrow type panel of surrounding is
30~200mm, its periphery at least covers on partial-length and stretches out the narrow type panel of surrounding before the component milling, in surrounding
Narrow type below the panel is further fixedly arranged on bearing plate (3), and it is narrow to be at least more than surrounding in the width of part of its periphery position bearing plate
The width of width type panel, described device further include for stretching out component other than surrounding narrow type panel periphery before component milling
Part be fixedly connected with bearing plate to wait for the bolt (4) of milling component；Described method includes following steps：
Step 1: fixed melon lobed component：It is placed on device and the melon lobed component of accuracy detection qualification is adopted to located
Clamping is assisted with C-type clamp and is fixed by bolts, and is specifically the wide end of first fixing component, then the close wide end of fixing component
Length direction line left and right sides, then left and right sides of the length direction line of the close narrow end of fixing component, by melon
Lobed component is fixed on the bearing plate of device；
Step 2: carrying out surplus milling to melon lobed component：After fixing component, first use milling cutter in the upper surface of melon lobed component
Engrave product Molded Line, then milling cutter with product Molded Line be reference, on melon valve according to milling path line to component carry out more than
Milling is measured, milling path line forms bolt fixed ear around each bolt, finally to carrying out milling at bolt fixed ear.
2. method according to claim 1, which is characterized in that in step 1, first pass through 2~4 pairs of C-type clamps by melon valve component
Both sides clamp, and carrying out punching blending bolt to the wide end of melon valve component by CNC milling cutter is fixed so that the wide end of component
It is bolted between bearing plate, then removes the C-type clamp and with C-type clamp to the two side portions close to melon valve component wide end
It clamps so that the inner bottom surface of melon valve component and the upper surface of the narrow type panel of surrounding are adjacent to, using CNC milling cutter to melon valve component
Punching blending bolt is carried out close to the two side portions of wide end to fix；Finally remove at this C-type clamp and with C-type clamp to close to melon valve structure
The two side portions of part narrow end clamp, and the two side portions using CNC milling cutter to melon valve component close to narrow end carry out punching blending bolt
It is fixed, it completes to remove C-type clamp after whole bolts are fixed.
3. method according to claim 1, which is characterized in that in step 2 when to carrying out milling at bolt fixed ear, first
The thickness for retaining 1~3mm is not cut off, and cutter is damaged to prevent melon valve member springs back；The bolt that last manual excision machine is not cut is solid
Determine ear.
4. method according to claim 1, which is characterized in that portrayed downwards on the surrounding narrow type panel top surface reasonable
Offer blind slot shape by line (21) and/or downwards allows cutter groove (22).
5. according to the method described in claim 1, it is characterized in that, the snap-gauge be containing on plate thickness direction be through hole shape
Hole to reduce the hollowed-out board of dead weight, and the polylith snap-gauge includes the longitudinal snap-gauge (11) being arranged in a mutually vertical manner and lateral card
Plate (12), the spacing between preferably parallel adjacent two pieces longitudinal snap-gauges is 0.3m or more, between parallel two pieces of adjacent lateral snap-gauges
Spacing be 0.3m or more, the spacing between more preferably parallel adjacent two pieces longitudinal snap-gauges is 0.4~0.6m, parallel adjacent two
Spacing between block transverse direction snap-gauge is 0.4~0.6m.
6. according to the method described in claim 1, it is characterized in that, the width of the narrow type panel of the surrounding be 40~150mm,
The thickness of the narrow type panel of surrounding is 10~30mm, and the thickness of the preferably described narrow type panel of surrounding is 12~20mm.
7. according to the method described in claim 4, it is characterized in that, the aluminium alloy bent member is melon lobed component, in institute
It states and two radical theory lines is set on the narrow type panel of surrounding of device and two allow cutter groove, and described cutter groove is allowed to be arranged in component length
The left and right sides of direction line, and Molded Line setting is in wide end corresponding with surface member width direction and narrow end, and two allow cutter groove
Side line (221) and the two radical theory lines of close member center position collectively form the target size size of component product.
8. according to the method described in claim 1, it is characterized in that, bearing plate setting is in the narrow type below the panel of surrounding 10
At~100mm, at preferably 30~60mm, and the narrow type panel parallel setting of bearing plate and surrounding or close to being arranged in parallel, pressure-bearing
Plate is fixedly welded on snap-gauge；It is preferred that the total quantity of the bolt is 6~20, and scattering device is in the surrounding of component.
9. according to the method described in claim 4, it is characterized in that, the width for allowing cutter groove is 12~20mm, depth is 5~
10mm。
10. according to the method described in claim 1, it is characterized in that, described device further includes before accuracy detection, for by structure
Part positioning is placed on the positioning element on device, and the positioning element includes the location hole and positioning pin being arranged on bearing plate
Nail and/or the positioning element include the position line being arranged on device.
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| CN201810409515.5A CN108580985B (en) | 2018-05-02 | 2018-05-02 | A kind of milling method of large aluminum alloy melon lobed component |
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| CN201810409515.5A CN108580985B (en) | 2018-05-02 | 2018-05-02 | A kind of milling method of large aluminum alloy melon lobed component |
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| CN116689843A (en) * | 2023-06-21 | 2023-09-05 | 中南大学 | Device and method for precisely milling process allowance of complex grid reinforcement member |
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