CN105880937B - A kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method - Google Patents
A kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method Download PDFInfo
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- CN105880937B CN105880937B CN201510716822.4A CN201510716822A CN105880937B CN 105880937 B CN105880937 B CN 105880937B CN 201510716822 A CN201510716822 A CN 201510716822A CN 105880937 B CN105880937 B CN 105880937B
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- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
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Abstract
The invention belongs to nickel-base alloy double-layer thin wall structural member machining technology field, and in particular to a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method.The present invention effectively prevent the forming errors of high-strength alloy sheet material, rigidity added using inner support frock by first using tool locating；By the standardized circle stringcourse of platform, solve each section of scale error of D types section splicing.Lathe line solves influence of the D type section external arc forming errors to 18 °.Fixed mold, locating clip clamping of workpieces, the point of application add positioning contact surface during processing using backing plate, while the stainless steel plate pad for making on positioning contact surface approximate shapes increases contact area, reduce the deformation of product to greatest extent on the point of application.Using the method for the present invention, can preferably solve the problems such as producing distortion, fold after the processing of double-layer thin wall part, end face plane degree is overproof, metal fillings falls into interlayer runner.
Description
Technical field
The invention belongs to nickel-base alloy double-layer thin wall structural member machining technology field, and in particular to a kind of large-scale bilayer
Thin-walled D types section vacuum chamber fan-shaped section end-face processing method.
Background technology
Large-scale double-layer thin wall D types section vacuum chamber fan-shaped section is used to manufacture the main element in Magnetic-confinement thermonuclear fusion device
Vacuum chamber, according to domestic and international thermonuclear fusion present Research, novel vacuum chamber is made up of 20 D-shaped sections altogether, and each D types section is sky
Between double-deck hyperboloid thin-wall construction, be welded by inner casing, runner channel-section steel and shell.
When large-scale double-layer thin wall D types section is processed, how to prevent nickel-base alloy double-layer thin wall part from producing torsion after processing
The problems such as song, fold, end face plane degree are overproof, metal fillings falls into interlayer runner, runner pollutes, magnetic conductivity rise, it is to ensure greatly
The key of type double-layer thin wall D types section 18 ° of end face crudies of vacuum chamber fan-shaped section, and current large-scale double-layer thin wall D types are cut
The technical problem of face process technology urgent need to resolve.
To solve problem above, need badly and formulate detailed machining scheme, at the same design and produce inner support frock, 18 ° plus
Work frock, furtherd investigate in process tool selection, machined parameters setting, anti-metal fillings etc..
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end face to add
Work method, to solve the problems such as producing distortion, fold, overproof end face plane degree after double-layer thin wall part is processed, it is ensured that D fan-shaped sections are pressed
Drawing dimensional accuracy, accuracy of form and position etc. are manufactured, and then are ensured the vacuum chamber accuracy of manufacture, met that Magnetic-confinement thermonuclear fusion is studied
Requirement.
In order to realize this purpose, the present invention adopts the technical scheme that：
A kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method, the large-scale bilayer that this method is related to
Thin-walled D types section vacuum chamber fan-shaped section is used to manufacture the main element vacuum chamber in Magnetic-confinement thermonuclear fusion device, and vacuum chamber is common
It is made up of 20 D types section vacuum chamber fan-shaped sections, 20 sections of compositions, one domain, each D types section vacuum chamber fan-shaped section is nickel
Space bilayer hyperboloid thin-wall construction prepared by based alloy, is welded by inner casing, channel-section steel and shell, the circle between two end faces
Heart angle is 18 °；Comprise the following steps：
(1) D types section vacuum chamber fan-shaped section size is checked；
Inner support tool locating：The D types section of D types section vacuum chamber fan-shaped section is adjusted to same by inner support frock
Size；
The D type sectional dimensions of D types section vacuum chamber fan-shaped section are adjusted to the length of internal diameter major axis by inner support frock
For 2960mm, the length of short axle is 1550mm；
(2) rule：
D types section vacuum chamber fan-shaped section is placed on workbench, adjustment D types section vacuum chamber fan-shaped section, standardized circle waist
Line controls whole circle stringcourse in the same plane by above and below the vacuum chamber fan-shaped section of D types section points；
(3) lathe is rule：
From XK2735 digital control plane milling and boring machine workbench, 3 adjustment parallels, two of which adjustment are placed on the table
Parallels is placed on the straight section end positions of corresponding D types section vacuum chamber fan-shaped section, and an adjustment parallels is placed on corresponding D types section
The circular arc end position farthest apart from straight section in vacuum chamber fan-shaped section, control D types section vacuum chamber fan-shaped section contact with workbench
End face with workbench in approximately the same plane；
D types section vacuum chamber fan-shaped section is lifted to workbench, the stringcourse and D types section vacuum chamber drawn by step (2) are fanned
The straight section centering of shape section, the major axis of detection D types section vacuum chamber fan-shaped section outline, minor axis dimension；
Programmed using the programmable rotation of XK2735 digital control plane milling and boring machines, clamping scriber, it is fan-shaped to draw D types section vacuum chamber
The processing dimension line of two end faces of section；
(4) fixed mold：
18 ° of inclination angle molds are lain against on XK2735 numerical control gantry mill boring tables, utilize XK2735 numerical control gantry borings
The programmable rotation programming of milling machine, 18 ° of inclined-planes of 18 ° of inclination angle molds of clamping dial gauge centering, are less than its error on milling head
0.05；Centering well after, fix 18 ° of inclination angle molds；
(5) locating clip clamping of workpieces：
The D types section vacuum chamber fan-shaped section that lifting pulls line is placed on 18 ° of inclination angle molds, D types section vacuum chamber fan-shaped section
It is put in the base portion of 18 ° of inclination angle molds, define D types section vacuum chamber fan-shaped section is with the end face that 18 ° of inclination angle molds contact
Lower surface, another end face are upper surface；Interior positioning is carried out using the internal stop on 18 ° of inclination angle molds, by what is drawn in step (3)
The processing line of processing dimension line centering D types section vacuum chamber fan-shaped section upper surface；
Stainless steel gasket is set between D types section vacuum chamber fan-shaped section lower surface and 18 ° of inclination angle molds, by adjusting not
If the thickness control D types section vacuum chamber fan-shaped section upper surface for the steel plate washer that becomes rusty is in a plane；
Adjust to same plane, D types section vacuum chamber fan-shaped section is clamped；Set during clamping in point of application position
Backing plate；
Clamping force passes to the regulation stud on 18 ° of inclination angle molds by the outer clamping seats on 18 ° of inclination angle molds, adjusts spiral shell
Post is clamped by the backing plate of point of application position on 18 ° of inclination angle molds；
(6) first end face processing：
XK2735 digital control plane milling and boring machines directly cut off method with saw blade knife and cut along feed on the outside of the vacuum chamber fan-shaped section of D types section
First end face of processing D types section vacuum chamber fan-shaped section is cut, is specifically included：
(6.1) using saw blade knife cut along feed at 100mm on the outside of the vacuum chamber fan-shaped section of D types section, incision D types are cut
After first end face 50mm of face vacuum chamber fan-shaped section sawing is carried out along lathe simulation appearance and size；A diameter of 200mm of saw blade knife,
Thickness is 4mm, and rotation rotating speed is 15~20r/min, and feeding speed is 6~8mm/min；
(6.2) after the completion of sawing, using face and side cutter along 50mm on the outside of first end face of vacuum chamber fan-shaped section of D types section
Walk to complete for one week first end face processing in place；A diameter of 200mm of face and side cutter, thickness 12mm, rotation rotating speed be 15~
20r/min, feeding speed are 18~20mm/min；
(7) D types section vacuum chamber fan-shaped section is overturn：180 degree upset D types section vacuum chamber fan-shaped section, by what is machined
18 ° of inclination angle molds are contacted after first end face upset, 18 ° of inclination angle molds and D types section vacuum chamber fan-shaped section are cleared up before upset
The joint place of first end face；Step (5) is pressed using unprocessed D types section vacuum chamber fan-shaped section second end face as face to be processed
Method positioning clamp D types sections vacuum chamber fan-shaped section；
(8) second end face processing：
By method processing D types section fan-shaped second end face of vacuum chamber of step (6)；
(9) inner support frock is unclamped, takes out frock, completes the processing of two end faces.
Further, a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method as described above, step
Suddenly in the vacuum chamber fan-shaped section size of (1) review D types section, according to the D of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end face
Type structure, the characteristics of 20 sections of compositions, one domain, inner support frock is by upper part, stud, nut, middle part, right-hand member extension bar,
Jack, left end extension bar, lower part composition；
Upper part reaches theoretical size requirement, including symmetrical two parts for adjusting D fonts top inside dimension,
Each part is formed by three sections：Top is the arc section that radius is 890mm, is designated as R890 sections；The left side of R890 sections and straight flange
Section is tangent, the right side of R890 sections and the arc section inscribe that radius is 1910mm；Three sections of common connections of each part form D fonts
Top half；Breadth Maximum of the upper part in bottom is 1493mm, and peak is highly 1020mm, gradual by 3 block sizes
Two symmetrical parts are formed by connecting the upper part of inner support frock by the top connecting plate for becoming big；
Two pieces of the inner side and outer side in 3 pieces of top connecting plates is connected with middle part respectively, and inside upper part connecting plate is
300mmx150mmx20mm steel plate, 2 spacing 105mm, diameter 33mm are symmetrical arranged with center line on inside upper part connecting plate
Through hole be connected with middle part；Outer upper connecting plate is 750mmx150mmx20mm steel plate, on outer upper connecting plate
3 spacing 192mm are symmetrical arranged with center line, diameter 33mm through hole is connected with middle part；
Coupled between upper part and middle part point using 5 studs, the both ends of each stud there are 4 nuts, are separately positioned on
The bottom plate upper and lower sides of upper part, the upper plate upper and lower sides of middle part；
Middle part is used for connecting upper and bottom section, and adjusts width by 10 tons of jack, and reaching size will
Ask；Middle part is divided to including two symmetrical parts, and the left side of each part is by 2 700mmx150mmx20mm steel plates and 2
300mmx150mmx20mm steel plates are welded with No. 15 channel-section steels；Middle partial right side is by 2 700mmx150mmx20mm arc-shaped steels
Plate and 2 750mmx150mmx20mm steel plates are welded with No. 15 channel-section steels；The width maximum of middle part is 1550mm, highest
Point height is 740mm；Two symmetrical parts are formed by connecting interior branch by the middle part connecting plate that 3 block sizes become larger
Support the middle part of frock；
Two pieces of the inner side and outer side in 3 pieces of middle part connecting plates is connected with upper and bottom section respectively, and middle inside connects
Fishplate bar is 300mmx150mmx20mm steel plate, and 2 spacing 105mm, straight are symmetrical arranged with center line on middle inside connecting plate
Footpath 33mm through hole is connected with upper and bottom section；Outside middle part connecting plate is 750mmx150mmx20mm steel plate, outside
3 spacing 192mm are symmetrical arranged with center line on middle side part connecting plate, diameter 33mm through hole is connected with upper and bottom section；
Right-hand member extension bar and left end extension bar are all a diameter of 57mm, and length is 420mm bar；
The length that jack is not used when extending is 300mm；
Lower part reaches theory calls, including symmetrical two parts for adjusting D fonts bottom inside dimension, each
Part is all formed by three sections：Bottom is the arc section that radius is 890mm, is designated as R890 sections；The left side of R890 sections and straight section phase
Cut, the right side of R890 sections and the arc section inscribe that radius is 1910mm；Three sections of common connections of each part are formed under D fonts
Half part；Breadth Maximum of the lower part in bottom is 1493mm, and peak is highly 1020mm, is become larger by 3 block sizes
Lower connecting plate two symmetrical parts are formed by connecting the lower part of inner support frock；
Two pieces of the inner side and outer side in 3 pieces of lower connecting plates is connected with middle part respectively, and lower inside connecting plate is
300mmx150mmx20mm steel plate, 2 spacing 105mm, diameter 33mm are symmetrical arranged with center line on lower inside connecting plate
Through hole be connected with middle part；Outer lower portion connecting plate is 750mmx150mmx20mm steel plate, on outer lower portion connecting plate
3 spacing 192mm are symmetrical arranged with center line, diameter 33mm through hole is connected with middle part；
Coupled between middle part and lower part using 5 studs, the both ends of each stud there are 4 nuts, are separately positioned on
The lower plate upper and lower sides of middle part, the upper plate upper and lower sides of lower part；
By the nut in adjustment between part and upper part, middle part and lower part on 10 studs, to reach requirement
Internal diameter long axis direction size；
By jack and right-hand member extension bar, the left end extension bar of part in adjustment, to reach the minor axis dimension of requirement.
Further, a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method as described above, step
Suddenly in (4) fixed mold, 18 ° of inclination angle molds include backing plate, base, internal stop, outer clamping seats；Backing plate is used for reducing pressure, subtracts
Few workpiece deformation；Backing plate length is 150mm, and width 150mm, thickness 5mm, material is stainless steel；Base is used for forming 18 °
Inclination angle simultaneously supports D-shaped section to carry out 18 ° of end face processing；Internal stop is used for carrying out coarse positioning to workpiece；Outer clamping seats are used for workpiece
Exerted a force, and accurately adjusted in clamping.
Further, a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method as described above, step
Suddenly in (5) locating clip clamping of workpieces, the stainless steel that is set between D types section vacuum chamber fan-shaped section lower surface and 18 ° of inclination angle molds
The thickness of pad is 0.3~0.5mm.
The beneficial effect of technical solution of the present invention is：The present invention effectively prevent high-strength by first using tool locating
The forming errors of sheet alloy are spent, rigidity is added using inner support frock；By the standardized circle stringcourse of platform, solve D types section and spell
Each section of scale error connect.Lathe line solves influence of the D type section external arc forming errors to 18 °.Fixed mold, locating clip
Clamping of workpieces, the point of application adds positioning contact surface during processing using backing plate, while makes approximate shapes on positioning contact surface
Stainless steel plate pad on the point of application, increase contact area, to greatest extent reduce product deformation.Using the side of the present invention
Method, can preferably solve to produce after the processing of double-layer thin wall part that distortion, fold, end face plane degree be overproof, metal fillings falls into interlayer
The problems such as runner, it be able to can be processed at one time by inside and outside bilayer after positioning compression, and cost is low, it is easy to operate.
Brief description of the drawings
Fig. 1 is inner support tool structure schematic diagram；
Fig. 2 is 18 ° of inclination angle positioner structure schematic diagrames；
Fig. 3 is internal stop and outer clamping seats schematic diagram in 18 ° of inclination angle molds；
Fig. 4 is internal stop and outer clamping seats schematic diagram.
In figure：1 upper part, in 2 part, 3 right-hand member extension bars, 4 jack, 5 left end extension bars, 6 lower parts, 7 backing plates, and 8
Base, 9 internal stops, 10 outer clamping seats.
Embodiment
In order to facilitate the understanding of those skilled in the art, the present invention is further retouched below in conjunction with example is implemented
State.It is only for example, be not limitation of the invention to the invention to implement example, implements not illustrate in example
The step of be prior art, be not described in detail herein.
A kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method of the present invention, this method are related to big
Type double-layer thin wall D types section vacuum chamber fan-shaped section is used to manufacture the main element vacuum chamber in Magnetic-confinement thermonuclear fusion device, very
Empty room is made up of 20 D types section vacuum chamber fan-shaped sections altogether, 20 sections of compositions, one domain, each D types section vacuum chamber fan-shaped section
Be space bilayer hyperboloid thin-wall construction prepared by nickel-base alloy, be welded by inner casing, channel-section steel and shell, two end faces it
Between central angle be 18 °；It is characterized in that：Comprise the following steps：
(1) D types section vacuum chamber fan-shaped section size is checked；
Inner support tool locating：The D types section of D types section vacuum chamber fan-shaped section is adjusted to same by inner support frock
Size；
The D type sectional dimensions of D types section vacuum chamber fan-shaped section are adjusted to the length of internal diameter major axis by inner support frock
For 2960mm, the length of short axle is 1550mm；
In the present embodiment, as shown in figure 1, D type knots according to large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end face
Structure, 20 sections composition one domain the characteristics of, inner support frock is very heavy by upper part, stud, nut, middle part, right-hand member extension bar
Top, left end extension bar, lower part composition；
Upper part reaches theoretical size requirement, including symmetrical two parts for adjusting D fonts top inside dimension,
Each part is formed by three sections：Top is the arc section that radius is 890mm, is designated as R890 sections；The left side of R890 sections and straight flange
Section is tangent, the right side of R890 sections and the arc section inscribe that radius is 1910mm；Three sections of common connections of each part form D fonts
Top half；Breadth Maximum of the upper part in bottom is 1493mm, and peak is highly 1020mm, gradual by 3 block sizes
Two symmetrical parts are formed by connecting the upper part of inner support frock by the top connecting plate for becoming big；
Two pieces of the inner side and outer side in 3 pieces of top connecting plates is connected with middle part respectively, and inside upper part connecting plate is
300mmx150mmx20mm steel plate, 2 spacing 105mm, diameter 33mm are symmetrical arranged with center line on inside upper part connecting plate
Through hole be connected with middle part；Outer upper connecting plate is 750mmx150mmx20mm steel plate, on outer upper connecting plate
3 spacing 192mm are symmetrical arranged with center line, diameter 33mm through hole is connected with middle part；
Coupled between upper part and middle part point using 5 studs, the both ends of each stud there are 4 nuts, are separately positioned on
The bottom plate upper and lower sides of upper part, the upper plate upper and lower sides of middle part；
Middle part is used for connecting upper and bottom section, and adjusts width by 10 tons of jack, and reaching size will
Ask；Middle part is divided to including two symmetrical parts, and the left side of each part is by 2 700mmx150mmx20mm steel plates and 2
300mmx150mmx20mm steel plates are welded with No. 15 channel-section steels；Middle partial right side is by 2 700mmx150mmx20mm arc-shaped steels
Plate and 2 750mmx150mmx20mm steel plates are welded with No. 15 channel-section steels；The width maximum of middle part is 1550mm, highest
Point height is 740mm；Two symmetrical parts are formed by connecting interior branch by the middle part connecting plate that 3 block sizes become larger
Support the middle part of frock；
Two pieces of the inner side and outer side in 3 pieces of middle part connecting plates is connected with upper and bottom section respectively, and middle inside connects
Fishplate bar is 300mmx150mmx20mm steel plate, and 2 spacing 105mm, straight are symmetrical arranged with center line on middle inside connecting plate
Footpath 33mm through hole is connected with upper and bottom section；Outside middle part connecting plate is 750mmx150mmx20mm steel plate, outside
3 spacing 192mm are symmetrical arranged with center line on middle side part connecting plate, diameter 33mm through hole is connected with upper and bottom section；
Right-hand member extension bar and left end extension bar are all a diameter of 57mm, and length is 420mm bar；
The length that jack is not used when extending is 300mm；
Lower part reaches theory calls, including symmetrical two parts for adjusting D fonts bottom inside dimension, each
Part is all formed by three sections：Bottom is the arc section that radius is 890mm, is designated as R890 sections；The left side of R890 sections and straight section phase
Cut, the right side of R890 sections and the arc section inscribe that radius is 1910mm；Three sections of common connections of each part are formed under D fonts
Half part；Breadth Maximum of the lower part in bottom is 1493mm, and peak is highly 1020mm, is become larger by 3 block sizes
Lower connecting plate two symmetrical parts are formed by connecting the lower part of inner support frock；
Two pieces of the inner side and outer side in 3 pieces of lower connecting plates is connected with middle part respectively, and lower inside connecting plate is
300mmx150mmx20mm steel plate, 2 spacing 105mm, diameter 33mm are symmetrical arranged with center line on lower inside connecting plate
Through hole be connected with middle part；Outer lower portion connecting plate is 750mmx150mmx20mm steel plate, on outer lower portion connecting plate
3 spacing 192mm are symmetrical arranged with center line, diameter 33mm through hole is connected with middle part；
Coupled between middle part and lower part using 5 studs, the both ends of each stud there are 4 nuts, are separately positioned on
The lower plate upper and lower sides of middle part, the upper plate upper and lower sides of lower part；
By the nut in adjustment between part and upper part, middle part and lower part on 10 studs, to reach requirement
Internal diameter long axis direction size；
By jack and right-hand member extension bar, the left end extension bar of part in adjustment, to reach the minor axis dimension of requirement.
(2) rule：
D types section vacuum chamber fan-shaped section is placed on workbench, adjustment D types section vacuum chamber fan-shaped section, standardized circle waist
Line controls whole circle stringcourse in the same plane by above and below the vacuum chamber fan-shaped section of D types section points；
(3) lathe is rule：
From XK2735 digital control plane milling and boring machine workbench, because vacuum chamber 18 ° of sections of sector in D types section are a thin-walled welderings
Binding component, deformation certainly exist, and in order to ensure precision, determine face principle according to 3 points, place 3 adjusting pads on the table
Iron, two of which adjustment parallels are placed on the straight section end positions of corresponding D types section vacuum chamber fan-shaped section, and an adjustment parallels is put
Put farthest apart from straight section circular arc end position in corresponding D types section vacuum chamber fan-shaped section, control D types section vacuum chamber fan-shaped section
The end face contacted with workbench with workbench in approximately the same plane；
D types section vacuum chamber fan-shaped section is lifted to workbench, the stringcourse and D types section vacuum chamber drawn by step (2) are fanned
The straight section centering of shape section, the major axis of detection D types section vacuum chamber fan-shaped section outline, minor axis dimension；
(ROT RPL=9 °, rotated using the programmable rotation of XK2735 digital control plane milling and boring machines in current plane
G17 to G19, single program section) programming, clamping scriber, the processing dimension of two end faces of stroke D types section vacuum chamber fan-shaped section
Line, specifically pincers worker, which coordinate, draws 9 ° of processing dimension lines that upper surface one is enclosed；Then 9 ° of processing dimension lines of the circle of lower surface one are drawn again,
Oblique line interpolation this characteristic can be carried out using Digit Control Machine Tool, reduces influence of the circular arc molding error to 18 ° ± 0.03 °.
(4) fixed mold：
18 ° of inclination angle molds are lain against on XK2735 numerical control gantry mill boring tables, utilize XK2735 numerical control gantry borings
Programmable rotation (ROT RPL=18 °, G17 to G19, single program section being rotated in current plane) programming of milling machine, in milling
18 ° of inclined-planes of 18 ° of inclination angle molds of clamping dial gauge centering on head, its error is set to be less than 0.05；Centering well after, fix 18 ° and incline
Angle mold；
In the present embodiment, as shown in Figures 2 and 3,18 ° of inclination angle molds include backing plate, base, internal stop, outer clamping seats；
Backing plate is used for reducing pressure, reduces workpiece deformation；Backing plate length is 150mm, width 150mm, thickness 5mm, and material is not
Become rusty steel；Base is used for forming 18 ° of inclination angles and supports D-shaped section to carry out 18 ° of end face processing；Internal stop is used for that workpiece is carried out slightly to determine
Position；Outer clamping seats are used for exerting a force to workpiece, and are accurately adjusted in clamping.
(5) locating clip clamping of workpieces：
The D types section vacuum chamber fan-shaped section that lifting pulls line is placed on 18 ° of inclination angle molds, D types section vacuum chamber fan-shaped section
It is put in the base portion of 18 ° of inclination angle molds, define D types section vacuum chamber fan-shaped section is with the end face that 18 ° of inclination angle molds contact
Lower surface, another end face are upper surface；Interior positioning is carried out using the internal stop on 18 ° of inclination angle molds, by what is drawn in step (3)
The processing line of processing dimension line centering D types section vacuum chamber fan-shaped section upper surface；
Stainless steel gasket is set between D types section vacuum chamber fan-shaped section lower surface and 18 ° of inclination angle molds, by adjusting not
If the thickness control D types section vacuum chamber fan-shaped section upper surface for the steel plate washer that becomes rusty is in a plane；
In the present embodiment, the stainless steel set between D types section vacuum chamber fan-shaped section lower surface and 18 ° of inclination angle molds
The thickness of pad is 0.3~0.5mm.
Adjust to same plane, D types section vacuum chamber fan-shaped section is clamped；Set during clamping in point of application position
Backing plate；
Clamping force passes to the regulation stud on 18 ° of inclination angle molds by the outer clamping seats on 18 ° of inclination angle molds, adjusts spiral shell
Post is clamped by the backing plate of point of application position on 18 ° of inclination angle molds；
(6) first end face processing：
XK2735 digital control plane milling and boring machines directly cut off method with saw blade knife and cut along feed on the outside of the vacuum chamber fan-shaped section of D types section
First end face of processing D types section vacuum chamber fan-shaped section is cut, is specifically included：
(6.1) using saw blade knife cut along feed at 100mm on the outside of the vacuum chamber fan-shaped section of D types section, incision D types are cut
After first end face 50mm of face vacuum chamber fan-shaped section sawing is carried out along lathe simulation appearance and size；A diameter of 200mm of saw blade knife,
Thickness is 4mm, and rotation rotating speed is 15~20r/min, and feeding speed is 6~8mm/min；
(6.2) after the completion of sawing, using face and side cutter along 50mm on the outside of first end face of vacuum chamber fan-shaped section of D types section
Walk to complete for one week first end face processing in place；A diameter of 200mm of face and side cutter, thickness 12mm, rotation rotating speed be 15~
20r/min, feeding speed are 18~20mm/min；
(7) D types section vacuum chamber fan-shaped section is overturn：180 degree upset D types section vacuum chamber fan-shaped section, by what is machined
18 ° of inclination angle molds are contacted after first end face upset, 18 ° of inclination angle molds and D types section vacuum chamber fan-shaped section are cleared up before upset
The joint place of first end face；Step (5) is pressed using unprocessed D types section vacuum chamber fan-shaped section second end face as face to be processed
Method positioning clamp D types sections vacuum chamber fan-shaped section；
(8) second end face processing：
By method processing D types section fan-shaped second end face of vacuum chamber of step (6)；
(9) inner support frock is unclamped, takes out frock, completes the processing of two end faces.
In the present embodiment, by the double-layer thin wall D types section 18 ° of sections of vacuum chamber fan-shaped section processed after testing, part is without torsion
The defects of song, fold, end face plane degree 0.1mm, 18 ° ± 0.03 ° of angle, meet technological requirement.
Claims (3)
1. a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method, the large-scale bilayer that this method is related to are thin
Wall D types section vacuum chamber fan-shaped section is used to manufacturing main element vacuum chamber in Magnetic-confinement thermonuclear fusion device, vacuum chamber altogether by
20 D types section vacuum chamber fan-shaped section compositions, 20 sections of compositions, one domain, each D types section vacuum chamber fan-shaped section is Ni-based
Space bilayer hyperboloid thin-wall construction prepared by alloy, is welded by inner casing, channel-section steel and shell, the center of circle between two end faces
Angle is 18 °；It is characterized in that：Comprise the following steps：
(1) D types section vacuum chamber fan-shaped section size is checked；
Inner support tool locating：The D types section of D types section vacuum chamber fan-shaped section is adjusted to by same chi by inner support frock
It is very little；
The D type sectional dimensions of D types section vacuum chamber fan-shaped section are adjusted to the length of internal diameter major axis by inner support frock and are
2960mm, the length of short axle is 1550mm；
Check in the vacuum chamber fan-shaped section size of D types section, according to the D of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end face
Type structure, the characteristics of 20 sections of compositions, one domain, inner support frock is by upper part, stud, nut, middle part, right-hand member extension bar,
Jack, left end extension bar, lower part composition；
Upper part reaches theoretical size requirement, including symmetrical two parts for adjusting D fonts top inside dimension, each
Part is all formed by three sections：Top is the arc section that radius is 890mm, is designated as R890 sections；The left side of R890 sections and straight section phase
Cut, the right side of R890 sections and the arc section inscribe that radius is 1910mm；Three sections of common connections of each part form the upper of D fonts
Half part；Breadth Maximum of the upper part in bottom is 1493mm, and peak is highly 1020mm, is become larger by 3 block sizes
Top connecting plate two symmetrical parts are formed by connecting the upper part of inner support frock；
Two pieces of the inner side and outer side in 3 pieces of top connecting plates is connected with middle part respectively, and inside upper part connecting plate is
300mmx150mmx20mm steel plate, 2 spacing 105mm, diameter 33mm are symmetrical arranged with center line on inside upper part connecting plate
Through hole be connected with middle part；Outer upper connecting plate is 750mmx150mmx20mm steel plate, on outer upper connecting plate
3 spacing 192mm are symmetrical arranged with center line, diameter 33mm through hole is connected with middle part；
Coupled between upper part and middle part point using 5 studs, the both ends of each stud there are 4 nuts, are separately positioned on top
Bottom plate upper and lower sides, the upper plate upper and lower sides of middle part divided；
Middle part is used for connecting upper and bottom section, and adjusts width by 10 tons of jack, reaches size requirement；In
Part includes two symmetrical parts, and the left side of each part is by 2 700mmx150mmx20mm steel plates and 2
300mmx150mmx20mm steel plates are welded with No. 15 channel-section steels；Middle partial right side is by 2 700mmx150mmx20mm arc-shaped steels
Plate and 2 750mmx150mmx20mm steel plates are welded with No. 15 channel-section steels；The width maximum of middle part is 1550mm, highest
Point height is 740mm；Two symmetrical parts are formed by connecting interior branch by the middle part connecting plate that 3 block sizes become larger
Support the middle part of frock；
Two pieces of the inner side and outer side in 3 pieces of middle part connecting plates is connected with upper and bottom section respectively, middle inside connecting plate
It is 300mmx150mmx20mm steel plate, 2 spacing 105mm, diameters is symmetrical arranged with center line on middle inside connecting plate
33mm through hole is connected with upper and bottom section；Outside middle part connecting plate is 750mmx150mmx20mm steel plate, in outside
3 spacing 192mm are symmetrical arranged with center line in middle part connecting plate, diameter 33mm through hole is connected with upper and bottom section；
Right-hand member extension bar and left end extension bar are all a diameter of 57mm, and length is 420mm bar；
The length that jack is not used when extending is 300mm；
Lower part reaches theory calls, including symmetrical two parts, each part for adjusting D fonts bottom inside dimension
All formed by three sections：Bottom is the arc section that radius is 890mm, is designated as R890 sections；The left side of R890 sections and straight section are tangent,
The right side of R890 sections and the arc section inscribe that radius is 1910mm；Three sections of common connections of each part form the lower half of D fonts
Part；Breadth Maximum of the lower part in bottom is 1493mm, and peak is highly 1020mm, is become larger by 3 block sizes
Two symmetrical parts are formed by connecting the lower part of inner support frock by lower connecting plate；
Two pieces of the inner side and outer side in 3 pieces of lower connecting plates is connected with middle part respectively, and lower inside connecting plate is
300mmx150mmx20mm steel plate, 2 spacing 105mm, diameter 33mm are symmetrical arranged with center line on lower inside connecting plate
Through hole be connected with middle part；Outer lower portion connecting plate is 750mmx150mmx20mm steel plate, on outer lower portion connecting plate
3 spacing 192mm are symmetrical arranged with center line, diameter 33mm through hole is connected with middle part；
Coupled between middle part and lower part using 5 studs, the both ends of each stud there are 4 nuts, are separately positioned on middle part
Lower plate upper and lower sides, the upper plate upper and lower sides of lower part divided；
By the nut in adjustment between part and upper part, middle part and lower part on 10 studs, to reach the interior of requirement
Footpath long axis direction size；
By jack and right-hand member extension bar, the left end extension bar of part in adjustment, to reach the minor axis dimension of requirement；
(2) rule：
D types section vacuum chamber fan-shaped section is placed on workbench, adjustment D types section vacuum chamber fan-shaped section, the standardized stringcourse that encloses is by D
Type section vacuum chamber fan-shaped section is divided into symmetrical two parts up and down, controls whole circle stringcourse in the same plane；
(3) lathe is rule：
From XK2735 digital control plane milling and boring machine workbench, 3 adjustment parallels, two of which adjustment parallels are placed on the table
The straight section end positions of corresponding D types section vacuum chamber fan-shaped section are placed on, remaining adjustment parallels is placed on corresponding D types and cut
The circular arc end position farthest apart from straight section in the vacuum chamber fan-shaped section of face, control D types section vacuum chamber fan-shaped section contact with workbench
End face and workbench in approximately the same plane；
D types section vacuum chamber fan-shaped section is lifted to workbench, the stringcourse and D types section vacuum chamber fan-shaped section drawn by step (2)
Straight section centering, the major axis of detection D types section vacuum chamber fan-shaped section outline, minor axis dimension；
Programmed using the programmable rotation of XK2735 digital control plane milling and boring machines, clamping scriber, draw D types section vacuum chamber fan-shaped section
The processing dimension line of two end faces；
(4) fixed mold：
18 ° of inclination angle molds are lain against on XK2735 numerical control gantry mill boring tables, utilize XK2735 digital control plane milling and boring machines
Programmable rotation programming, 18 ° of inclined-planes of 18 ° of inclination angle molds of clamping dial gauge centering on milling head, make its error be less than 0.05；
Centering well after, fix 18 ° of inclination angle molds；
(5) locating clip clamping of workpieces：
The D types section vacuum chamber fan-shaped section that lifting pulls line is placed on 18 ° of inclination angle molds, and D types section vacuum chamber fan-shaped section is put in
In the base portion of 18 ° of inclination angle molds, it is lower end to define the end face that D types section vacuum chamber fan-shaped section contacts with 18 ° of inclination angle molds
Face, another end face are upper surface；Interior positioning is carried out using the internal stop on 18 ° of inclination angle molds, by the processing drawn in step (3)
The processing line of dimension line centering D types section vacuum chamber fan-shaped section upper surface；
Stainless steel gasket is set between D types section vacuum chamber fan-shaped section lower surface and 18 ° of inclination angle molds, by adjusting stainless steel
The thickness control D types section vacuum chamber fan-shaped section upper surface of pad is in a plane；
Adjust to same plane, D types section vacuum chamber fan-shaped section is clamped；Set and pad in the point of application position during clamping
Plate；
Clamping force passes to the regulation stud on 18 ° of inclination angle molds by the outer clamping seats on 18 ° of inclination angle molds, and regulation stud is led to
The backing plate for crossing point of application position on 18 ° of inclination angle molds is clamped；
(6) first end face processing：
XK2735 digital control plane milling and boring machines directly cut off method with saw blade knife and added along feed cutting on the outside of the vacuum chamber fan-shaped section of D types section
First end face of work D types section vacuum chamber fan-shaped section, is specifically included：
(6.1) using saw blade knife cut along feed at 100mm on the outside of the vacuum chamber fan-shaped section of D types section, incision D types section is true
After first end face 50mm of empty room fan-shaped section sawing is carried out along lathe simulation appearance and size；A diameter of 200mm of saw blade knife, thickness
For 4mm, rotation rotating speed is 15~20r/min, and feeding speed is 6~8mm/min；
(6.2) after the completion of sawing, walked using face and side cutter along 50mm on the outside of first end face of vacuum chamber fan-shaped section of D types section
Complete within one week first end face processing；A diameter of 200mm of face and side cutter, thickness 12mm, rotation rotating speed are 15~20r/
Min, feeding speed are 18~20mm/min；
(7) D types section vacuum chamber fan-shaped section is overturn：180 degree upset D types section vacuum chamber fan-shaped section, will machine first
18 ° of inclination angle molds are contacted after individual end face upset, 18 ° of inclination angle molds and D types section vacuum chamber fan-shaped section first are cleared up before upset
The joint place of individual end face；The side of step (5) is pressed using unprocessed D types section vacuum chamber fan-shaped section second end face as face to be processed
Legal position clamps D types section vacuum chamber fan-shaped section；
(8) second end face processing：
By method processing D types section fan-shaped second end face of vacuum chamber of step (6)；
(9) inner support frock is unclamped, takes out frock, completes the processing of two end faces.
2. a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method as claimed in claim 1, its feature
It is：In the fixed mold of step (4), 18 ° of inclination angle molds include backing plate, base, internal stop, outer clamping seats；Backing plate is used for reducing
Pressure, reduce workpiece deformation；Backing plate length is 150mm, and width 150mm, thickness 5mm, material is stainless steel；Base is used for
Form 18 ° of inclination angles and support D-shaped section to carry out 18 ° of end face processing；Internal stop is used for carrying out coarse positioning to workpiece；Outer clamping seats are used for
Workpiece is exerted a force, and accurately adjusted in clamping.
3. a kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method as claimed in claim 1, its feature
It is：In step (5) locating clip clamping of workpieces, set between D types section vacuum chamber fan-shaped section lower surface and 18 ° of inclination angle molds
The thickness of stainless steel gasket is 0.3~0.5mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510716822.4A CN105880937B (en) | 2015-10-28 | 2015-10-28 | A kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method |
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| CN201510716822.4A CN105880937B (en) | 2015-10-28 | 2015-10-28 | A kind of large-scale double-layer thin wall D types section vacuum chamber fan-shaped section end-face processing method |
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| CN105880937B true CN105880937B (en) | 2017-12-22 |
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| CN106736268B (en) * | 2016-11-30 | 2018-08-24 | 鞍钢重型机械有限责任公司 | The processing method for cutting box-like 180 ° of arched girders |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102652A (en) * | 1975-10-01 | 1978-07-25 | Deggendorfer Werft Und Eisenbau Gmbh | Modular construction for a large catalytic reaction apparatus |
| CN102069228A (en) * | 2010-12-28 | 2011-05-25 | 东方电气集团东方汽轮机有限公司 | Milling processing fixture for cylinder clamp ring of large steam turbine and processing method of clamp ring |
| CN102794619A (en) * | 2012-09-13 | 2012-11-28 | 沈阳飞机工业（集团）有限公司 | Machining method of long-narrow tire with embedded block |
| CN104690400A (en) * | 2015-02-12 | 2015-06-10 | 中国科学院等离子体物理研究所 | Method for welding all-position narrow gap in Tokamak vacuum chamber |
-
2015
- 2015-10-28 CN CN201510716822.4A patent/CN105880937B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4102652A (en) * | 1975-10-01 | 1978-07-25 | Deggendorfer Werft Und Eisenbau Gmbh | Modular construction for a large catalytic reaction apparatus |
| CN102069228A (en) * | 2010-12-28 | 2011-05-25 | 东方电气集团东方汽轮机有限公司 | Milling processing fixture for cylinder clamp ring of large steam turbine and processing method of clamp ring |
| CN102794619A (en) * | 2012-09-13 | 2012-11-28 | 沈阳飞机工业（集团）有限公司 | Machining method of long-narrow tire with embedded block |
| CN104690400A (en) * | 2015-02-12 | 2015-06-10 | 中国科学院等离子体物理研究所 | Method for welding all-position narrow gap in Tokamak vacuum chamber |
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| CN105880937A (en) | 2016-08-24 |
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Effective date of registration: 20210219 Address after: 710021 Shaanxi province xujiawan Xi'an Weiyang Weibin Street No. 5 Patentee after: XI'AN NUCLEAR EQUIPMENT Co.,Ltd. Patentee after: SOUTHWESTERN INSTITUTE OF PHYSICS Address before: 710021 No.5, Weibin street, xujiawan, Weiyang District, Xi'an City, Shaanxi Province Patentee before: XI'AN NUCLEAR EQUIPMENT Co.,Ltd. |