CN106312151A - One-click numerical-control milling method for complex cylindrical thin-walled shell - Google Patents
One-click numerical-control milling method for complex cylindrical thin-walled shell Download PDFInfo
- Publication number
- CN106312151A CN106312151A CN201610912861.6A CN201610912861A CN106312151A CN 106312151 A CN106312151 A CN 106312151A CN 201610912861 A CN201610912861 A CN 201610912861A CN 106312151 A CN106312151 A CN 106312151A
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- CN
- China
- Prior art keywords
- housing
- machining
- thin
- milling method
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003801 milling Methods 0.000 title claims abstract description 29
- 238000003754 machining Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 8
- 239000010935 stainless steel Substances 0.000 claims description 8
- 210000000282 Nails Anatomy 0.000 claims description 5
- 230000000875 corresponding Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000007664 blowing Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000001419 dependent Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004801 process automation Methods 0.000 description 1
- 230000003252 repetitive Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
-
- 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
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
Abstract
The invention provides a one-click numerical-control milling method for a complex cylindrical thin-walled shell, and belongs to the technical field of numerical-control machining. The one-click numerical-control milling method for the complex cylindrical thin-walled shell comprises the steps that the complex cylindrical thin-walled shell to be machined is fixed to a rotary workbench of a machine tool through a clamp, the rotating center of the shell is corrected through a dial indicator metering method, the original point in the circumferential direction of the shell is determined through a measuring head, and then the machine tool is controlled in a one-click mode to sequentially execute the following work that rough machining is conducted on the shell, an air blowing tool is used for cleaning all machining positions, the actual dimension of each machining position is measured through the measuring head, and finish machining is conducted according t the actual dimensions and theoretical dimensions of the machining positions. The complex cylindrical thin-walled shell is dismounted after machining is completed. By adoption of the one-click numerical-control milling method for the complex cylindrical thin-walled shell, manual operation is reduced to the maximum extent, and the automation degree of milling is increased; and the measuring means and the part clamping mode are improved, and thus the reliability and stability of part producing and machining are improved.
Description
Technical field:
The present invention relates to the thin-wall complicated housing of straight tube one-touch NC Milling method, belong to numerical controlled machinery process technology neck
Territory.
Background technology:
The thin-wall complicated housing of straight tube refers to that overall dimensions is Φ 400mm～Φ 700mm, and wall thickness dimension is Φ 2mm～Φ 5mm
Part, the profile NC Milling flow process of this type of part is as shown in Figure 1 at present.
Along with weapon miniaturization, the propelling of lighting process, in order to meet overall loss of weight and narrow space assembling demand, shell
The design of body structure becomes increasingly complex, and housing wall thickness is more and more thinner, and required precision is more and more higher.
For above-mentioned situation, straight tube thin-wall complicated housing milling sharp processing technique there is problems in that
(1) in the course of processing, manual operations is more, and operator's labor intensity is big；
(2) product initial point is arranged, dimensional measurement process is completely dependent on operator's working experience and level of skill, and quality is unstable
Fixed；
(3) housing required precision is high, and machining deformation is big, and size is difficult to ensure, the course of processing needs repetitive measurement size,
Amendment program, manual operations repeatedly causes production efficiency low, and product reliability is poor.
Summary of the invention:
The technology of the present invention solves problem: overcome the deficiencies in the prior art, it is provided that the thin-wall complicated housing of straight tube is one-touch
NC Milling method, decreases manual operations to greatest extent, improves Milling Machining automaticity；Improve measurement means and zero
Part installation way, improves the reliability and stability of part production and processing.
The technical solution of the present invention is: the thin-wall complicated housing of straight tube one-touch NC Milling method, including following
Step:
(1) gauge head, blow tool and process tool are installed on lathe；
(2) the thin-wall complicated housing of straight tube to be processed is fixed on machine tool rotary working table by fixture, described fixture
From upper and lower end face, housing is clamped；
(3) dial gauge is used to beat the mode centering housing centre of gyration of table, by clamp during the centering centre of gyration, fixing
Good housing；
(4) transfer gauge head after the centering centre of gyration, utilize gauge head to trigger the circular hole on housing, find the center of this circular hole,
By the initial point of the angle-determining housing circumferencial direction of center of circular hole, described circular hole is for installing the rudderpost of aircraft；
(5) control lathe order perform following Milling Machining work:
(5.1) housing is carried out roughing；
(5.2) utilize blow tool that each Working position is cleared up, call gauge head and measure the reality of each Working position
Border size；
(5.3) actual size and theoretical size according to each Working position judge, when actual size and theoretical chi
Very little inconsistent time, corresponding Working position is carried out polish；
(6) completion of processing unloads part.
Described fixture includes that clamp base, cover plate, bolt, nut and pad, clamp base, cover plate are used for clamping shell
Body, the external diameter of cover plate is more than housing upper surface diameter of bore and less than external profile diameter, and bolt passes clamp base and cover plate, and leads to
Cross nut to be fixed on clamp base and cover plate, and between nut and clamp base and between nut and cover plate, be provided with pad
Sheet.
Described blow tool includes that stainless steel tube, handle of a knife, blind rivet form, and stainless steel tube inserts handle of a knife clamping knife end, draws
Nail is interior cold drawn nail, inserts handle of a knife end, and for being connected with machine tool chief axis, described handle of a knife is the folder tank matched with lathe interface
Formula milling handle, the low pressure gas within lathe can blow out through machine tool chief axis and blow tool.
Before housing is carried out roughing, control lathe execution following machining state detection program:
1. situation cutter life is checked, in conjunction with checking that result judges whether to need to change cutter；
2. checking conditions of machine tool, if checking when reporting to the police occurs in results operation panel, revising parameter according to warning message；
3. checking housing state, if checking when reporting to the police occurs in results operation panel, correcting housing centering according to warning message
State.
Compared with prior art, there is advantages that
(1) present invention performs Milling Machining operation by program control machine tool order, in position cleaning, dimensional measurement and processing
State-detection aspect, replaces artificial manual operations, it is achieved the operating in a key of straight tube thin-wall complicated housing part profile Milling Machining,
Decrease manual operations to greatest extent, improve the reliability and stability of part production and processing.
(2) present invention is housing design fixture, improves parts fixation rigidity, prevents the thin-wall complicated housing of straight tube processed
Journey occurs deformation, it is achieved Product processing is stablized and steady quality.
(3) blow tool of the present invention is connected with machine tool chief axis, by the low pressure gas in program control machine tool by stainless
Steel pipe blows out, the low pressure gas being effectively utilized in lathe, it is achieved that the automatic cleaning of Working position, enhances Working position and measures
Accuracy.
(4) present invention is that lathe adds gauge head, it is possible to determines housing initial point by Automatic Program and measures Working position
Size, improves production efficiency and product reliability.
Accompanying drawing illustrates:
Fig. 1 is the process chart of tradition milling method；
Fig. 2 is the milling method flow chart of the inventive method；
Fig. 3 is that fixture is to housing clamping view；
Fig. 4 is blow tool schematic diagram.
Detailed description of the invention:
The inventive method is as in figure 2 it is shown, concrete procedure of processing is as follows:
(1) housing is installed
Being fixed on machine tool rotary working table by fixture by the thin-wall complicated housing of straight tube to be processed, concrete mode is:
First clamp base 1 is fixed on machine tool rotary working table, then the thin-wall complicated housing of straight tube 2 to be processed is placed on fixture
On base 1, finally cover plate 3 is placed on part 2.Cover plate 3 and part 2 and clamp base 1 bolt 4, nut 5 are connected and (stay
There is a small amount of move place).Pad 6 is set between nut 5 and clamp base 1 and nut 5 and cover plate 3 simultaneously.Fixture is to shell
Body clamping view is as shown in Figure 3.
(2) the centering housing centre of gyration
Using dial gauge to beat the mode centering part centre of gyration of table, during centering center, part circumferencial direction symmetric position is public
Difference controls, 0～0.05mm, to improve machining accuracy, to be tightened by nut 5 after centering, fix housing 2.
(3) initial point is arranged
From machine cutter holder, transfer gauge head, trigger housing 2 circumferencial direction characteristic portion by gauge head and (be used for aircraft is installed
The circular hole of rudderpost), find the center of this circular hole, by the initial point B0 of the angle-determining housing circumferencial direction of center of circular hole, initial point
B0 differs 45 degree with the angle of center of circular hole.
(4) to lathe input control program so that when pressing machine tooling key, lathe order performs following processing work:
(4.1) detection program is performed
1. check situation cutter life, choose whether needs in conjunction with program checkout result (statistical values of access times)
Change cutter, as set the life-span as 100 times, exceed and then should change cutter, otherwise cause overproof, affect crudy.
2. checking conditions of machine tool, if checking when reporting to the police occurs in results operation panel, revising parameter according to warning message, such as machine
Bed coordinate system is deteriorated, then revise coordinate system.
3. checking housing state, if checking when reporting to the police occurs in results operation panel, correcting housing centering according to warning message
State.
(5) processor is performed
1. utilize different cutters that different positions carries out thick surplus processing, the size after roughing and theoretical size phase
Differ from 0.1 0.5mm, preferably 0.3mm.
2. blow tool is used to be processed the cleaning of position.Blow tool as shown in Figure 4, including φ 6 stainless steel tube 7,
Handle of a knife 8, blind rivet 9, stainless steel tube 7 inserts handle of a knife 8 and clamps knife end, and blind rivet 9 is interior cold drawn nail, insert handle of a knife 8 end, for
Machine tool chief axis connects.Lathe low pressure gas is passed through interior cold drawn nail 9 by lathe inside, handle of a knife 8 and φ 6 stainless steel tube 7 spreads out of and blows to want
On the housing of processing.Handle of a knife 8 is the common folder pot type milling handle matched with lathe interface.Simple blow tool can put into cutter
Storehouse together manages with cutter；
3. call gauge head and measure the actual size of each Working position, measurement data is exported in lathe depositor；
4. actual size and theoretical size according to each Working position judge, when actual size and theoretical size not
Time consistent, corresponding Working position is carried out polish.
(6) completion of processing unloads part.
Utilize the inventive method, during milling sharp processing, rely on operator's level of skill and the work of working experience
Flow process only installs part and two steps of the centering centre of gyration, and follow-up work all uses lathe to be automatically performed, it is achieved that straight tube
The operating in a key of thin-wall complicated housing part profile Milling Machining.The method increase the process automation journey of milling profile operation
Degree, reduces labor intensity, improves production efficiency and reliability.
To process the thin-wall complicated shell product of straight tube of a diameter of φ 420mm, housing wall thickness a size of 4mm, add horizontal
As a example by carrying out milling sharp processing on work center, after utilizing the inventive method, milling sharp processing efficiency improves 40% than former technique.With
Time, product quality disqualification rate reduces by 50%.
The present invention is unspecified partly belongs to general knowledge as well known to those skilled in the art.
Claims (4)
1. the thin-wall complicated housing of straight tube one-touch NC Milling method, it is characterised in that comprise the following steps:
(1) gauge head, blow tool and process tool are installed on lathe；
(2) being fixed on machine tool rotary working table by fixture by the thin-wall complicated housing of straight tube to be processed, described fixture is from upper
Housing is clamped by lower surface；
(3) use dial gauge to beat the mode centering housing centre of gyration of table, by clamp during the centering centre of gyration, fix shell
Body；
(4) transfer gauge head after the centering centre of gyration, utilize gauge head to trigger the circular hole on housing, find the center of this circular hole, pass through
The initial point of the angle-determining housing circumferencial direction of center of circular hole, described circular hole is for installing the rudderpost of aircraft；
(5) control lathe order perform following Milling Machining work:
(5.1) housing is carried out roughing；
(5.2) utilize blow tool that each Working position is cleared up, call gauge head and measure the actual chi of each Working position
Very little；
(5.3) actual size and theoretical size according to each Working position judge, when actual size and theoretical size not
Time consistent, corresponding Working position is carried out polish；
(6) completion of processing unloads part.
The thin-wall complicated housing of straight tube the most according to claim 1 one-touch NC Milling method, it is characterised in that: described
Fixture includes clamp base (1), cover plate (3), bolt (4), nut (5) and pad (6), and clamp base (1), cover plate (3) are used
In clamping housing, the external diameter of cover plate (3) is more than housing upper surface diameter of bore and less than external profile diameter, and bolt (4) passes fixture
At the bottom of base (1) and cover plate (3), and be fixed on clamp base (1) and cover plate (3) by nut (5), and nut (5) and fixture
It is provided with pad (6) between seat (1) and between nut (5) and cover plate (3).
The thin-wall complicated housing of straight tube the most according to claim 1 one-touch NC Milling method, it is characterised in that: described
Blow tool includes that stainless steel tube (7), handle of a knife (8), blind rivet (9) form, and stainless steel tube (7) inserts handle of a knife (8) clamping knife end,
Blind rivet (9) is interior cold drawn nail, inserts handle of a knife (8) end, and for being connected with machine tool chief axis, described handle of a knife (8) is and lathe interface
The folder pot type milling handle matched, the low pressure gas within lathe can blow out through machine tool chief axis and blow tool.
The thin-wall complicated housing of straight tube the most according to claim 1 one-touch NC Milling method, it is characterised in that: right
Before housing carries out roughing, control lathe execution following machining state detection program:
1. situation cutter life is checked, in conjunction with checking that result judges whether to need to change cutter；
2. checking conditions of machine tool, if checking when reporting to the police occurs in results operation panel, revising parameter according to warning message；
3. checking housing state, if checking when reporting to the police occurs in results operation panel, correcting housing centering state according to warning message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912861.6A CN106312151B (en) | 2016-10-19 | 2016-10-19 | The one-touch NC Milling method of the thin-wall complicated shell of straight tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912861.6A CN106312151B (en) | 2016-10-19 | 2016-10-19 | The one-touch NC Milling method of the thin-wall complicated shell of straight tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106312151A true CN106312151A (en) | 2017-01-11 |
| CN106312151B CN106312151B (en) | 2018-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610912861.6A Active CN106312151B (en) | 2016-10-19 | 2016-10-19 | The one-touch NC Milling method of the thin-wall complicated shell of straight tube |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759897A (en) * | 2019-03-14 | 2019-05-17 | 西安航天动力机械有限公司 | A kind of measurement of the horizontal assembly of large size shell and aligning method |
| CN110165846A (en) * | 2019-05-30 | 2019-08-23 | 岭东核电有限公司 | Nuclear power station inner stator spring backing plate and positioning key replacing options |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004034208A (en) * | 2002-07-02 | 2004-02-05 | Ishikawajima Harima Heavy Ind Co Ltd | Cutting method of thin wall member |
| CN101780557B (en) * | 2010-02-09 | 2011-12-14 | 惠阳航空螺旋桨有限责任公司 | Numerical control milling process method of thin-walled part die cavity |
| CN103386502A (en) * | 2013-08-02 | 2013-11-13 | 太原科技大学 | Method for machining rotary thin-walled parts in milling machine |
| CN104550393A (en) * | 2014-12-03 | 2015-04-29 | 华南理工大学 | Method for precision forming of concave-bottom and thin-wall cylindrical part with large length and diameter ratio |
| CN104772648A (en) * | 2015-04-09 | 2015-07-15 | 西安工业大学 | Milling processing method for thin-wall workpiece of airplane |
| CN105522353A (en) * | 2016-02-25 | 2016-04-27 | 西安北方光电科技防务有限公司 | Method for machining high-accuracy and thin-wall parts through common numerical control milling machine equipment |
-
2016
- 2016-10-19 CN CN201610912861.6A patent/CN106312151B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004034208A (en) * | 2002-07-02 | 2004-02-05 | Ishikawajima Harima Heavy Ind Co Ltd | Cutting method of thin wall member |
| CN101780557B (en) * | 2010-02-09 | 2011-12-14 | 惠阳航空螺旋桨有限责任公司 | Numerical control milling process method of thin-walled part die cavity |
| CN103386502A (en) * | 2013-08-02 | 2013-11-13 | 太原科技大学 | Method for machining rotary thin-walled parts in milling machine |
| CN104550393A (en) * | 2014-12-03 | 2015-04-29 | 华南理工大学 | Method for precision forming of concave-bottom and thin-wall cylindrical part with large length and diameter ratio |
| CN104772648A (en) * | 2015-04-09 | 2015-07-15 | 西安工业大学 | Milling processing method for thin-wall workpiece of airplane |
| CN105522353A (en) * | 2016-02-25 | 2016-04-27 | 西安北方光电科技防务有限公司 | Method for machining high-accuracy and thin-wall parts through common numerical control milling machine equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109759897A (en) * | 2019-03-14 | 2019-05-17 | 西安航天动力机械有限公司 | A kind of measurement of the horizontal assembly of large size shell and aligning method |
| CN109759897B (en) * | 2019-03-14 | 2020-12-04 | 西安航天动力机械有限公司 | Measuring and aligning method for horizontal assembly of large shell |
| CN110165846A (en) * | 2019-05-30 | 2019-08-23 | 岭东核电有限公司 | Nuclear power station inner stator spring backing plate and positioning key replacing options |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106312151B (en) | 2018-08-31 |
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