CN103551828B - A kind of deformation amount controlling method of multiaspect thin-wall box body part processing - Google Patents
A kind of deformation amount controlling method of multiaspect thin-wall box body part processing Download PDFInfo
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- CN103551828B CN103551828B CN201310512543.7A CN201310512543A CN103551828B CN 103551828 B CN103551828 B CN 103551828B CN 201310512543 A CN201310512543 A CN 201310512543A CN 103551828 B CN103551828 B CN 103551828B
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- Prior art keywords
- casing
- thin
- box body
- multiaspect
- auxiliary process
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 210000003205 muscle Anatomy 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 230000001276 controlling effect Effects 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
- B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The present invention provides a kind of deformation amount controlling method that multiaspect thin-wall box body part is processed, described multiaspect thin-wall box body has many muscle metallic framework and inside and outside metal thin-wall, described deformation amount controlling method comprises the following steps: (1) with the installed surface of casing for bottom surface, according to box sizes and Mass Calculation the side focus point facing each other on direction, front, rear, left and right determining described installed surface；(2) on each described focus point, auxiliary process block is welded as the compression position and the positioning datum that add man-hour；(3) as clamping and compress position using described auxiliary process block, adopt frock that casing carries out clamping and compression；(4) using described auxiliary process block as positioning datum, the overall dimensions of described casing is carried out roughing；(5) after roughing, described casing is stood more than 12 hours, make stress be released, under naturalness, remove the deflection of casing；(6) more described casing being carried out polish, polish completes rear cutout except all auxiliary process blocks.
Description
Technical field
The present invention relates to the Digit Control Machine Tool deformation amount controlling method to workpiece machining, especially relate to the deformation amount controlling method of a kind of multiaspect thin-wall box body part processing.
Background technology
When conventional large and medium-sized thin-wall box body series products is processed, clamping position to be generally compressed on the muscle portion of part, or adopts the mode increasing the direct compressing component of cushion block.The product pressing from both sides position without pressure for some four walls and bottom is then difficult to use above method, and the deflection that Product processing is compressed is difficult to accurate control, therefore adopts prior art that the processing of thin-wall box body part is difficult to higher precision.Digital control processing especially for the complex (aluminum component edge steel bushing) that processing part is aluminum and steel shapes, and deflection is more difficult to control.
Summary of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide a kind of deformation amount controlling method of multiaspect thin-wall box body work pieces process, the deflection of thin-wall box body in the course of processing is minimized, improve the machining accuracy of multiaspect thin-wall box body.
For reaching above-mentioned purpose, the present invention provides a kind of deformation amount controlling method of multiaspect thin-wall box body work pieces process, and described multiaspect thin-wall box body has many muscle metallic framework and inside and outside metal thin-wall, it is characterised in that described deformation amount controlling method comprises the following steps:
(1) with the installed surface of casing for bottom surface, according to box sizes and Mass Calculation the side focus point facing each other on direction, front, rear, left and right determining described installed surface；
(2) on each described focus point, auxiliary process block is welded as the compression position and the positioning datum that add man-hour；
(3) as clamping and compress position using described auxiliary process block, adopt frock that casing carries out clamping and compression；
(4) using described auxiliary process block as positioning datum, the overall dimensions of described casing is carried out roughing；
(5) after roughing, described casing is stood more than 12 hours, make stress be released, under naturalness, remove the deflection of casing；
(6) more described casing being carried out polish, polish completes rear cutout except all auxiliary process blocks.
In described step (1), the side at described installed surface at least determines two pairs of focus points respectively in front and rear direction and left and right direction.
Owing to adopting technique scheme, the present invention adopts the side focus point position at the installed surface of multiaspect thin-wall box body to weld auxiliary process block as compressing position and positioning datum, efficiently control deflection, machining accuracy between relative position is effectively controlled, and improves the precision of multiaspect thin-wall box body part processing.The method being applied on the correlated parts of military project MISSILE LAUNCHING product, make the machining accuracy of part meet the requirement of its use, the passing rate of processing of part reaches 100% simultaneously.
Accompanying drawing explanation
Figure of description
Fig. 1 is the front view of a kind of thin-wall box body part adopting present invention processing.
Fig. 2 is the right view of a kind of thin-wall box body part adopting present invention processing.
Fig. 3 is the axonometric chart of a kind of thin-wall box body part adopting present invention processing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.
Referring to Fig. 1 to Fig. 3, it illustrates a kind of multiaspect thin-wall box body part 1 of the deformation amount controlling method processing adopting the present invention.This multiaspect thin-wall box body part 1 has many muscle metallic framework (not shown) and inside and outside aluminium thin-walled, and the both sides, top of this multiaspect thin-wall box body part 1 are also embedded with steel bushing 2, and described deformation amount controlling method comprises the following steps:
Step (1): with the installed surface 3 of casing for bottom surface, according to box sizes and Mass Calculation the side focus point facing each other on direction, front, rear, left and right determining described installed surface；Specifically, determine two pairs of focus points in the longitudinal direction, determine two pairs of focus points in the lateral direction, altogether determine that 8 focus points compress a little as locating.In the present embodiment, to determine bottom surface right edge left focus point longitudinally and two focus points of right focus point, refer to Fig. 2, overall aluminium sheet thickness is 1.4cm, it is left out casing mesopore or boss, not showing in right view that casing whole width size is 110cm, this casing aluminum alloy materials density is 2.8g/cm3。
The first step calculates right view center of gravity line, it is assumed that center of gravity line and bottom surface intersection point are Xcm to bottom surface left end point distance.According to centre-of-gravity principle, center of gravity line cross section left-hand component weight is equal to the weight of right-hand component.Computing formula is as follows:
62.6*110*1.4*2.8+103.4*110*1.4*2.8+(X-81.8) * 110*1.4*2.8+X*110*1.4*2.8
=129.3*110*1.4*2.8+(150.5-X) * 110*1.4*2.8*2,
By calculating X=86.5cm；
Second step calculates left focus point in right view (namely center of gravity line cross section left-hand component is at the focus point of bottom surface side), it is assumed that left focus point is Ycm to bottom surface left end point distance.According to centre-of-gravity principle, computing formula is as follows: 62.6*110*1.4*2.8+Y/Cos30 ° of * 110*1.4*2.8+Y*110*1.4*2.8
=(86.5-Y) * 110*1.4*2.8+(86.5-81.8) * 110*1.4*2.8+(103.4-Y/Cos30 °) * 110*1.4*2.8
Round up by calculating Y=35.4cm()；
Same principle calculates right focus point in right view.
Step (2): weld auxiliary process block 4 on each described focus point as the compression position and the positioning datum that add man-hour.
Step (3): as clamping and compress position using auxiliary process block 4, adopts frock that casing carries out clamping and compression.
Step (4): using auxiliary process block 4 as positioning datum, the overall dimensions of multiaspect thin-wall box body part 1 is carried out roughing.
Step (5): stood more than 12 hours by multiaspect thin-wall box body part 1 after roughing, make stress be released, removes the deflection of multiaspect thin-wall box body part 1 under naturalness.
Step (6): again multiaspect thin-wall box body part 1 is carried out polish, polish completes rear cutout except all of 8 auxiliary process blocks 4.
Owing to the upper aluminum sheet of this multiaspect thin-wall box body part 1 being embedded steel bushing 2, therefore after should adopting first thickness between steel bushing 2 end face and aluminium sheet thin-walled, thin principle is processed, ensure the dimensional tolerance of inside and outside circle, reduce and the same face is continuously repeated processing, reduce processing and produce fever phenomenon, further by deformation amount controlling in smaller range.
Above-described embodiment is only for illustrating technology design and the feature of the present invention; its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this; can not limit the scope of the invention with this; all equivalences made according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (2)
1. a deformation amount controlling method for multiaspect thin-wall box body part processing, described multiaspect thin-wall box body has many muscle metallic framework and inside and outside metal thin-wall, it is characterised in that described deformation amount controlling method comprises the following steps:
(1) with the installed surface of casing for bottom surface, according to box sizes and Mass Calculation the side focus point facing each other on direction, front, rear, left and right determining described installed surface；
(2) on each described focus point, auxiliary process block is welded as the compression position and the positioning datum that add man-hour；
(3) as clamping and compress position using described auxiliary process block, adopt frock that casing carries out clamping and compression；
(4) using described auxiliary process block as positioning datum, the overall dimensions of described casing is carried out roughing；
(5) after roughing, described casing is stood more than 12 hours, make stress be released, under naturalness, remove the deflection of casing；
(6) more described casing being carried out polish, polish completes rear cutout except all auxiliary process blocks.
2. the deformation amount controlling method of a kind of multiaspect thin-wall box body part according to claim 1 processing, it is characterised in that: in described step (1), the side at described installed surface at least determines two pairs of focus points respectively in front and rear direction and left and right direction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512543.7A CN103551828B (en) | 2013-10-25 | 2013-10-25 | A kind of deformation amount controlling method of multiaspect thin-wall box body part processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512543.7A CN103551828B (en) | 2013-10-25 | 2013-10-25 | A kind of deformation amount controlling method of multiaspect thin-wall box body part processing |
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| Publication Number | Publication Date |
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| CN103551828A CN103551828A (en) | 2014-02-05 |
| CN103551828B true CN103551828B (en) | 2016-06-29 |
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| CN105149887B (en) * | 2015-09-30 | 2017-06-20 | 天津第一机床总厂 | The processing method of large-scale driven casing assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695792A (en) * | 2009-10-26 | 2010-04-21 | 浙江大地钢结构有限公司 | Welding method of T-shaped steel girder capable of performing transformation control |
| CN101941139A (en) * | 2010-09-02 | 2011-01-12 | 中信重工机械股份有限公司 | Welding and assembling method for huge mining mill barrel |
| CN102145446A (en) * | 2011-04-15 | 2011-08-10 | 南通太平洋海洋工程有限公司 | Deformation control in manufacturing of ultra-high strength steel structure |
| CN102350617A (en) * | 2011-09-08 | 2012-02-15 | 中国航空工业第六一八研究所 | Method for processing high-accuracy easily-deformable U-shaped cantilever structural member |
| CN102513803A (en) * | 2011-12-03 | 2012-06-27 | 西安航空动力股份有限公司 | Technical method for constructing reference surface of assembled folio cartridge receiver and special clamp |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7523554B2 (en) * | 2003-06-17 | 2009-04-28 | Honda Motor Co., Ltd. | Method of manufacturing a wheel rim |
| US8292282B2 (en) * | 2008-12-05 | 2012-10-23 | GM Global Technology Operations LLC | Flexible support assembly for vehicle tooling plates |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101695792A (en) * | 2009-10-26 | 2010-04-21 | 浙江大地钢结构有限公司 | Welding method of T-shaped steel girder capable of performing transformation control |
| CN101941139A (en) * | 2010-09-02 | 2011-01-12 | 中信重工机械股份有限公司 | Welding and assembling method for huge mining mill barrel |
| CN102145446A (en) * | 2011-04-15 | 2011-08-10 | 南通太平洋海洋工程有限公司 | Deformation control in manufacturing of ultra-high strength steel structure |
| CN102350617A (en) * | 2011-09-08 | 2012-02-15 | 中国航空工业第六一八研究所 | Method for processing high-accuracy easily-deformable U-shaped cantilever structural member |
| CN102513803A (en) * | 2011-12-03 | 2012-06-27 | 西安航空动力股份有限公司 | Technical method for constructing reference surface of assembled folio cartridge receiver and special clamp |
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