CN106312151B - The one-touch NC Milling method of the thin-wall complicated shell of straight tube - Google Patents
The one-touch NC Milling method of the thin-wall complicated shell of straight tube Download PDFInfo
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- CN106312151B CN106312151B CN201610912861.6A CN201610912861A CN106312151B CN 106312151 B CN106312151 B CN 106312151B CN 201610912861 A CN201610912861 A CN 201610912861A CN 106312151 B CN106312151 B CN 106312151B
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- shell
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- straight tube
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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
-
- 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 one-touch NC Milling method of the thin-wall complicated shell of straight tube, belongs to numerical controlled machinery processing technique field.The thin-wall complicated shell of straight tube to be processed is fixed on by fixture on machine tool rotary working table, the centering shell centre of gyration in such a way that dial gauge plays table determines the origin of shell circumferencial direction using gauge head, and then one-touch control lathe sequence executes following work：Roughing is carried out to shell, each Working position is cleared up using blow tool, calls gauge head to measure the actual size of each Working position, is finished according to the actual size of each Working position and theoretical size.Completion of processing unloads part.The present invention reduces manual operations to greatest extent, improves Milling Machining the degree of automation；Measurement means and parts fixation mode are improved, the reliability and stability of part production and processing are improved.
Description
Technical field：
The present invention relates to the one-touch NC Milling methods of the thin-wall complicated shell of straight tube, belong to numerical controlled machinery processing technology neck
Domain.
Background technology：
The thin-wall complicated shell of straight tube refers to that appearance and size is Φ 400mm~Φ 700mm, and wall thickness dimension is Φ 2mm~Φ 5mm
Part, the shape NC Milling flow of current such part is as shown in Figure 1.
With weapon miniaturization, the propulsion of lighting process, demand, shell are assembled in order to meet whole loss of weight and narrow space
Body structure design becomes increasingly complex, and shell wall thickness is more and more thinner, and required precision is higher and higher.
For the above situation, the thin-wall complicated shell milling sharp processing technique of straight tube has the following problems：
(1) manual operations is more in process, and operator's labor intensity is big；
(2) setting of product origin, dimensional measurement process are completely dependent on operator's working experience and level of skill, and quality is unstable
It is fixed；
(3) shell required precision is high, and machining deformation is big, and size is not easy to ensure, need repeatedly to measure size in process,
Program is changed, manual operations repeatedly causes production efficiency low, and product reliability is poor.
Invention content：
The technology of the present invention solves the problems, such as：It is one-touch to overcome the deficiencies of the prior art and provide the thin-wall complicated shell of straight tube
NC Milling method reduces manual operations to greatest extent, improves Milling Machining the degree of automation；Improve measurement means and zero
Part installation way improves the reliability and stability of part production and processing.
Technical solution of the invention is：The one-touch NC Milling method of the thin-wall complicated shell of straight tube, including it is following
Step：
(1) gauge head, blow tool and process tool are installed on lathe；
(2) the thin-wall complicated shell of straight tube to be processed is fixed on by fixture on machine tool rotary working table, the fixture
Shell is clamped from upper and lower end face；
(3) the centering shell centre of gyration in such a way that dial gauge plays table, it is fixed by clamp when the centering centre of gyration
Good shell；
(4) gauge head is transferred after the centering centre of gyration, using the circular hole on gauge head triggering shell, finds the center of the circular hole,
By the origin of the angle-determining shell circumferencial direction of center of circular hole, the circular hole is used to install the rudderpost of aircraft；
(5) control lathe sequence executes following Milling Machining work：
(5.1) roughing is carried out to shell；
(5.2) each Working position is cleared up using blow tool, gauge head is called to measure the reality of each Working position
Border size；
(5.3) judged according to the actual size of each Working position and theoretical size, when actual size and theoretical ruler
When very little inconsistent, corresponding Working position is finished；
(6) completion of processing unloads part.
The fixture includes fixture base, cover board, bolt, nut and gasket, and fixture base, cover board are for being clamped shell
The outer diameter of body, cover board is more than shell upper surface diameter of bore and is less than external profile diameter, and bolt passes through fixture base and cover board, and leads to
It crosses nut to be fixed in fixture base and cover board, and is provided with pad between nut and fixture base and between nut and cover board
Piece.
The blow tool includes stainless steel tube, handle of a knife, blind rivet composition, and stainless steel tube is inserted into handle of a knife and knife end is clamped, draws
Nail is that interior cold drawing is followed closely, and is inserted into handle of a knife end, and for being connect with machine tool chief axis, the handle of a knife is and the matched folder tank of lathe interface
Formula milling handle, the low pressure gas inside lathe can be blown out through machine tool chief axis and blow tool.
Before carrying out roughing to shell, control lathe executes following machining state and detects program：
1. checking cutter life situation, judge whether to need replacing cutter in conjunction with inspection result；
2. checking conditions of machine tool, if inspection result operation panel is alarmed, parameter is changed according to warning message；
3. checking shell state, if inspection result operation panel is alarmed, shell centering is corrected according to warning message
State.
Compared with prior art, the present invention has the advantages that：
(1) present invention executes Milling Machining operation by program control machine tool sequence, cleaning, dimensional measurement and processing in position
In terms of state-detection, instead of artificial manual operations, the operating in a key of the thin-wall complicated housing part shape Milling Machining of straight tube is realized,
Reduce manual operations to greatest extent, improves 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 shell of straight tube processed
It is deformed in journey, realizes that product processes stable and stable quality.
(3) blow tool of the invention is connect with machine tool chief axis, is passed through by the low pressure gas in program control machine tool stainless
Steel pipe is blown out, and the low pressure gas being effectively utilized in lathe realizes the automatic cleaning of Working position, enhances Working position measurement
Accuracy.
(4) present invention is that lathe increases gauge head, and shell origin can be automatically determined by program and measures Working position
Size improves production efficiency and product reliability.
Description of the drawings：
Fig. 1 is the process flow chart of traditional milling method；
Fig. 2 is the milling method flow chart of the method for the present invention；
Fig. 3 is fixture to shell clamping status diagram；
Fig. 4 is blow tool schematic diagram.
Specific implementation mode：
The method of the present invention is as shown in Fig. 2, specific procedure of processing is as follows：
(1) shell is installed
The thin-wall complicated shell of straight tube to be processed is fixed on by fixture on machine tool rotary working table, concrete mode is：
First fixture base 1 is fixed on machine tool rotary working table, the thin-wall complicated shell of straight tube to be processed 2 is then placed on fixture
On pedestal 1, finally cover board 3 is placed on part 2.Cover board 3 connect and (stays with part 2 and the bolt 4 of fixture base 1, nut 5
There is a small amount of move place).Gasket 6 is set between nut 5 and fixture base 1 and nut 5 and cover board 3 simultaneously.Fixture is to shell
Body clamping status diagram is as shown in Figure 3.
(2) the centering shell centre of gyration
The centering part centre of gyration in such a way that dial gauge plays table, part circumferencial direction symmetric position is public when centering center
Nut 5 is tightened after centering to improve machining accuracy in 0~0.05mm, fixes shell 2 by difference control.
(3) origin is arranged
Gauge head is transferred in machine cutter holder, and 2 circumferencial direction characteristic portion of shell is triggered (for installing aircraft by gauge head
The circular hole of rudderpost), the center of the circular hole is found, the origin B0 of the angle-determining shell circumferencial direction of center of circular hole, origin are passed through
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 sequence executes following processing work：
(4.1) detection program is executed
1. checking cutter life situation, choose whether to need in conjunction with program checkout result (statistical values of access times)
Cutter is replaced, such as sets the service life as 100 times, beyond should then replace cutter, otherwise causes overproof, influences processing quality.
2. checking conditions of machine tool, if inspection result operation panel is alarmed, parameter, such as machine are changed according to warning message
Bed coordinate system is deteriorated, then corrects coordinate system.
3. checking shell state, if inspection result operation panel is alarmed, shell centering is corrected according to warning message
State.
(5) processing program is executed
1. carrying out thick surplus processing, the size after roughing and theoretical size phase to different positions using different cutters
Poor 0.1-0.5mm, preferably 0.3mm.
2. being processed the cleaning of position using blow tool.Blow tool as shown in figure 4, including 6 stainless steel tubes 7 of φ,
Handle of a knife 8, blind rivet 9, stainless steel tube 7 are inserted into handle of a knife 8 and knife end are clamped, and blind rivet 9 is that interior cold drawing is followed closely, and is inserted into handle of a knife 8 end, be used for
Machine tool chief axis connects.Lathe low pressure gas is by being blown to and being wanted by interior cold drawing nail 9, handle of a knife 8 and the outflow of 6 stainless steel tubes 7 of φ inside lathe
On the shell of processing.Handle of a knife 8 be and the matched common folder pot type milling handle of lathe interface.Simple blow tool can be put into knife
Library manages together with cutter；
3. gauge head is called to measure the actual size of each Working position, measurement data is output in lathe register；
4. judged according to the actual size of each Working position and theoretical size, when actual size and theoretical size not
When consistent, corresponding Working position is finished.
(6) completion of processing unloads part.
Using the method for the present invention, during milling sharp processing, by the work of operator's level of skill and working experience
Flow only installs two steps of part and the centering centre of gyration, and follow-up work is all made of lathe and is automatically performed, and realizes straight tube
The operating in a key of thin-wall complicated housing part shape Milling Machining.The method increase the process automation journeys of milling shape process
Degree, reduces labor intensity, improves production efficiency and reliability.
To process a diameter of φ 420mm, shell wall thickness dimension is the thin-wall complicated shell product of straight tube of 4mm, is added horizontal
For carrying out milling sharp processing on work center, after the method for the present invention, milling sharp processing efficiency improves 40% than former technique.Together
When, product quality disqualification rate reduces by 50%.
Unspecified part of the present invention belongs to common sense well known to those skilled in the art.
Claims (4)
1. the one-touch NC Milling method of the thin-wall complicated shell of straight tube, it is characterised in that include the following steps：
(1) gauge head, blow tool and process tool are installed on lathe；
(2) the thin-wall complicated shell of straight tube to be processed is fixed on by fixture on machine tool rotary working table, the fixture is from upper
Shell is clamped in lower face；
(3) the centering shell centre of gyration in such a way that dial gauge plays table fixes shell by clamp when the centering centre of gyration
Body；
(4) gauge head is transferred after the centering centre of gyration, using the circular hole on gauge head triggering shell, finds the center of the circular hole, pass through
The origin of the angle-determining shell circumferencial direction of center of circular hole, the circular hole are used to install the rudderpost of aircraft；
(5) control lathe sequence executes following Milling Machining work：
(5.1) roughing is carried out to shell；
(5.2) each Working position is cleared up using blow tool, gauge head is called to measure the practical ruler of each Working position
It is very little；
(5.3) judged according to the actual size of each Working position and theoretical size, when actual size and theoretical size not
When consistent, corresponding Working position is finished；
(6) completion of processing unloads part.
2. the one-touch NC Milling method of the thin-wall complicated shell of straight tube according to claim 1, it is characterised in that：It is described
Fixture includes fixture base (1), cover board (3), bolt (4), nut (5) and gasket (6), and fixture base (1), cover board (3) are used
It is more than shell upper surface diameter of bore in the outer diameter of clamping shell, cover board (3) and is less than external profile diameter, bolt (4) passes through fixture
Pedestal (1) and cover board (3), and be fixed in fixture base (1) and cover board (3) by nut (5), and nut (5) and fixture bottom
It is provided with gasket (6) between seat (1) and between nut (5) and cover board (3).
3. the one-touch NC Milling method of the thin-wall complicated shell of straight tube according to claim 1, it is characterised in that：It is described
Blow tool includes stainless steel tube (7), handle of a knife (8), blind rivet (9) composition, and stainless steel tube (7) is inserted into handle of a knife (8) and knife end is clamped,
Blind rivet (9) is followed closely for interior cold drawing, is inserted into handle of a knife (8) end, and for being connect with machine tool chief axis, the handle of a knife (8) is and lathe interface
Matched folder pot type milling handle, the low pressure gas inside lathe can be blown out through machine tool chief axis and blow tool.
4. the one-touch NC Milling method of the thin-wall complicated shell of straight tube according to claim 1, it is characterised in that：Right
Before shell carries out roughing, control lathe executes following machining state and detects program：
1. checking cutter life situation, judge whether to need replacing cutter in conjunction with inspection result；
2. checking conditions of machine tool, if inspection result operation panel is alarmed, parameter is changed according to warning message；
3. checking shell state, if inspection result operation panel is alarmed, shell centering state is corrected according to warning message.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 |
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| 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 |
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| CN106312151B true CN106312151B (en) | 2018-08-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN113579806A (en) * | 2021-07-20 | 2021-11-02 | 贵州安吉华元科技发展有限公司 | Special part fixture for intelligently manufacturing and machining blades |
| CN117161451A (en) * | 2023-10-20 | 2023-12-05 | 英诺威阀业有限公司 | Manufacturing method of inner cutter barrel of shield tunneling machine and milling equipment thereof |
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| 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 |
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- 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 |
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