CN1562542A - Fast automatic processing method utilized in lathe and milling machine for large thin wall part with cylindrical grids - Google Patents

Fast automatic processing method utilized in lathe and milling machine for large thin wall part with cylindrical grids Download PDF

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Publication number
CN1562542A
CN1562542A CN 200410021201 CN200410021201A CN1562542A CN 1562542 A CN1562542 A CN 1562542A CN 200410021201 CN200410021201 CN 200410021201 CN 200410021201 A CN200410021201 A CN 200410021201A CN 1562542 A CN1562542 A CN 1562542A
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CN
China
Prior art keywords
cutter
processing
speed
grid
thin
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CN 200410021201
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Chinese (zh)
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CN1296162C (en
Inventor
贾春德
王凡
张志军
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沈阳工业学院
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Priority to CNB2004100212016A priority Critical patent/CN1296162C/en
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Publication of CN1296162C publication Critical patent/CN1296162C/en

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Abstract

A method for automatically machining the large thin-wall workpiece with lattice on its cylindrical surface by high-speed turning and milling includes such steps as machining reference surface, internal hole and extenal circumference, machining lattice on cylindrical sulface, machining radial holes,and fine finishing. Its computer program is also disclosed.

Description

Large thin-wall cylinder grid accessory high speed turn-milling automatic processing method
Technical field
The invention belongs to the machine cut process technology, particularly a kind of large thin-wall cylinder grid accessory high speed turn-milling automatic processing method.
Background technology
As shown in Figure 1, inner surface has the large thin-wall revolving parts of rectangular mesh structure, diameter is 1500~3000mm, highly be 400~800mm, wall thickness is 5~10mm, distributing equably at the internal circular surfaces of workpiece and need carry out the latticed concave form surface of machining, therefore the difficulty of processing of " thin-walled column veil lattice " is very big, particularly the processing of those imperfect grid concave surfaces difficulty especially.At present, usually adopt the plain-milling machine milling method, this processing method not only production efficiency is low, and dimensional accuracy and shaped position required precision when higher, be difficult to guarantee product quality that yield rate is lower, even employing Computerized Numerical Control processing technology, because the rigidity and the intensity of part are lower, are easy to generate machining deformation during Milling Process, the therefore specification requirement that does not reach machining accuracy and physical mechanical characteristic.
Summary of the invention
The objective of the invention is to have the technical problem that rectangular mesh structure large-scale thin-walled parts machining exists at inner surface, provide a kind of processing technology simple, the production efficiency height can guarantee the high speed turn-milling automatic technology method of machining accuracy.
The present invention is to be zero principle according to the circular division accumulated error, at overhead system five-axle linkage machining tool, adopt the orthogonal turn-milling processing method of revolution of processing parts low speed and the fast feed of high speed rotary milling tools, finish the processing of thin-walled surface mesh, guarantee the specification requirement of its size, shape and positional precision, large thin-wall cylinder grid accessory high speed turn-milling automatic processing method, its processing technology step is: datum level, endoporus and the cylindrical of (1) processing parts; (2) processing and forming cylinder grid, adopt ultrahigh speed coating finger cutter, the cutter fast forward speed is 30~55m/min, the cutter rotating speed is 10000~20000r/min, the rotary table rotating speed is 1.5~10r/min, optimum speed is 2.5~6r/min, the cooling of employing high-pressure blast, its blast is 4~8Mpa, at room temperature, part is with the continuous gyration of rotary table, and cutter is according to procedure F.F., cutting cylinder grid groove and rapid-return motion, continuously process repeatedly, until the processing and forming of all finishing cylinder grid groove; (3) processing parts radial hole, cutter rotating speed are 10000~16000r/min, and the amount of feeding is 2~3mm/s; (4) fine finishining cylinder grid, adopt ultrahigh speed coating finger cutter, the cutter fast forward speed is 30~55m/min, the cutter rotating speed is 10000~20000r/min, the rotary table rotating speed is 1.5~10r/min, optimum speed is 2.5~6r/min, the cooling of employing high-pressure blast, its blast is 4~8Mpa, and at room temperature, processing parts is made reciprocal dividing movement with rotary table, in conjunction with cutter straight line rapid movement and moving interpolation, finish the fine finishining of cylinder grid groove, purpose is that the grid periphery is repaired, and reaches the specification requirement of machining accuracy;
The flow process of the computer program of processing method of the present invention is: (1) prepares beginning; (2) technical parameter of input processing parts, for example grid circumference and radially number of grid, radial hole quantity, aperture and position dimension etc.; (3) coordinate position of tool motion is as cutter incision and the coordinate position that cuts out; Does (4) process finish not? if finish, then enter (5), otherwise the coordinate position of record tool motion enters (3); (5) generate the cutter path file; (6) input cutter path file carries out machining simulation; (7) is not the cutter path file modification? if revise the cutter path file, then enter (5), otherwise finish.
The present invention has advantages such as processing technology is simple, production efficiency is high, crudy is good, can satisfy the specification requirement of large thin-wall cylinder grid high speed turn-milling processing.
Description of drawings
Fig. 1 is a processing parts structural representation of the present invention;
Fig. 2 is the flow chart that the present invention processes computer program;
Fig. 3 is a processing and forming cutting tool path schematic diagram of the present invention;
Fig. 4 is a finishing tool movement locus schematic diagram of the present invention.
The specific embodiment
Further specify the process of cylinder grid high speed turn-milling processing of the present invention in conjunction with example.For example processing, a kind of diameter 1500mm, wall thickness 6mm, the thin-wall revolving body part of height 450mm.As shown in Figure 1, inner surface has the cylinder network.Use overhead system five-axle linkage machining tool, the first step: the at first datum level of processing parts, cylindrical and endoporus; Second step: processing and forming cylinder grid, adopt φ 20mm TiN coating four tooth finger cutters, the cutter fast forward speed is 45m/min, and the cutter rotating speed is 12000r/min, and the cutting feed speed is 2.5mm/s.The cooling of employing high speed winds, its blast is 5~6Mpa, at room temperature, cutter is continuously processed the cylinder grid according to procedure.Cutting tool path as shown in Figure 3,1. cutter home position; 2. cutter is cut into Working position fast; 3. part is turned back to the centre position; 4. process grid process finishing position for one; 5. the quick retracted position of cutter; 6. cutter is cut into next Working position fast; 7. cutter is worked into next centre position, and so repetitive cycling rotates a circle with workbench up to part, and cutter moves to the next line grid along the axis of workpiece direction then, begins the turnning and milling processing of next all grid, all machines up to the cylinder grid.The 3rd step: the processing parts radial hole, adopt the boring-mill work method, the cutter rotating speed is 12000r/min, the amount of feeding is 2.5mm/s; The 4th step: fine finishining cylinder grid, processing parts is made reciprocal dividing movement with rotary table, in conjunction with cutter straight line rapid movement and moving interpolation, finish the fine finishining of cylinder grid groove, purpose is that the grid periphery is repaired, reach the specification requirement of machining accuracy, its fabrication process condition is identical with processing and forming cylinder grid with technical parameter.Cutting tool path as shown in Figure 4,1 is the quick cutting into position of cutter, cutter is that workpiece is made the circular index movement position from 1-2,3-4, cutter is that workpiece stops the gyration position from 2-3,4-1, simultaneously motion is cut and cut out to cutter fast.Cutter 5 is next grid Working position.For the processing of imperfect grid, in the workpiece circular index, cutter also need be at the axial direction moving linearly, and the process of cutter from 7-8 finished in synthesizing of two motions.According to procedure, finish the motion process of cutter 8-9-10-5-11, begin the turnning and milling processing of next grid again, up to the processing of finishing whole cylinder grids.As shown in Figure 2, the flow process of the computer program of this processing method is: (1) prepares beginning; (2) technical parameter of input processing parts, for example grid circumference and radially number of grid, radial hole quantity, aperture and position dimension etc.; (3) coordinate position of tool motion is as cutter incision and the coordinate position that cuts out; Does (4) process finish not? if finish, then enter (5), otherwise the coordinate position of record tool motion enters (3); (5) generate the cutter path file; (6) input cutter path file carries out machining simulation; (7) is not the cutter path file modification? if revise the cutter path file, then enter (5), otherwise finish.

Claims (3)

1. large thin-wall cylinder grid accessory high speed turn-milling automatic processing method is characterized in that, the processing step of this method is:
(1) datum level of processing parts, endoporus and cylindrical;
(2) processing and forming cylinder grid, adopt ultrahigh speed coating finger cutter, the cutter fast forward speed is 30~55m/min, the cutter rotating speed is 10000~20000r/min, the rotary table rotating speed is 1.5~10r/min, the cooling of employing high-pressure blast, its blast is 4~8Mpa, at room temperature, part is with the continuous gyration of rotary table, cutter is continuously processed, until the processing and forming of all finishing cylinder grid groove repeatedly according to procedure F.F., cutting cylinder grid groove and rapid-return motion;
(3) processing parts radial hole, cutter rotating speed are 10000~16000r/min, and the amount of feeding is 2~3mm/s;
(4) fine finishining cylinder grid, adopt ultrahigh speed coating finger cutter, the cutter fast forward speed is 30~55m/min, the cutter rotating speed is 10000~20000r/min, the rotary table rotating speed is 1.5~10r/min, the cooling of employing high-pressure blast, its blast is 4~8Mpa, at room temperature, processing parts is made reciprocal dividing movement with rotary table, in conjunction with cutter straight line rapid movement and moving interpolation, finishes the fine finishining of cylinder grid groove, purpose is that the grid periphery is repaired, and reaches the specification requirement of machining accuracy.
2. large thin-wall cylinder grid accessory high speed turn-milling automatic processing method as claimed in claim 1 is characterized in that the computer program flow process of this processing method is:
(1) prepares beginning;
(2) technical parameter of input processing parts, for example grid circumference and radially number of grid, radial hole quantity, aperture and position dimension etc.;
(3) coordinate position of tool motion, for example cutter incision and the coordinate position that cuts out;
Does (4) process finish not? if finish, then enter (5), otherwise the coordinate position of record tool motion then enters (3);
(5) generate the cutter path file;
(6) input cutter path file carries out machining simulation;
(7) is not the cutter path file modification? if revise the cutter path file, then enter (5), otherwise finish.
3. large thin-wall cylinder grid accessory high speed turn-milling automatic processing method as claimed in claim 1 is characterized in that the optimum speed of rotary table is 2.5~6r/min.
CNB2004100212016A 2004-03-31 2004-03-31 Fast automatic processing method utilized in lathe and milling machine for large thin wall part with cylindrical grids CN1296162C (en)

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Cited By (14)

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CN101890523A (en) * 2009-05-19 2010-11-24 三菱电机株式会社 Utilize the method for adaptively sampled distance fields simulating numerically controlled milling
CN101602122B (en) * 2009-07-15 2011-01-19 天津商业大学 Precision numerical control milling method for thin-wall parts
CN102091908A (en) * 2010-12-31 2011-06-15 沈阳黎明航空发动机(集团)有限责任公司 Numerical control machining method for sector section and annular section parts
CN102350524A (en) * 2011-08-25 2012-02-15 沈阳飞机工业(集团)有限公司 Milling processing method for inner molding surface of opening end head of thin-walled structural member
CN102941372A (en) * 2012-10-11 2013-02-27 沈阳理工大学 Large caliber thick-walled tube turn-milling processing method
CN103286360A (en) * 2012-03-02 2013-09-11 沈阳黎明航空发动机(集团)有限责任公司 Tangential offset orthogonal turn-milling machining method
CN103611975A (en) * 2013-11-28 2014-03-05 四川石油射孔器材有限责任公司 Blind hole positioning keyway machining device for perforating gun
CN104439452A (en) * 2014-11-24 2015-03-25 湖北三江航天红阳机电有限公司 Efficient grid milling method for inner curved surface of tapered revolving body
CN104841990A (en) * 2015-05-05 2015-08-19 柳州三农科技有限公司 Machining method of H-shaped thin-wall parts
CN105290442A (en) * 2015-11-24 2016-02-03 陈硕 Boring method for large-diameter hole in circular hole
CN107971538A (en) * 2017-09-01 2018-05-01 徐州工程学院 A kind of emulation mode of orthogonal turn-milling finished surface microscopic appearance
CN108515217A (en) * 2018-04-09 2018-09-11 吉林大学 A kind of ball-end milling free form surface surface topography emulation mode
CN109227054A (en) * 2018-11-02 2019-01-18 首都航天机械有限公司 Complex mesh thin-wall case processing method
CN110293371A (en) * 2019-06-20 2019-10-01 苏州真懿精密器械有限公司 Long line footpath is than thin-walled parts turning-milling complex processing method

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CN104400093B (en) * 2014-11-24 2015-09-09 首都航天机械公司 Cylindrical thin wall workpiece bull mirror image milling attachment

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Publication number Priority date Publication date Assignee Title
CN101890523B (en) * 2009-05-19 2012-08-29 三菱电机株式会社 A method for simulating numerically controlled milling using adaptively sampled distance fields
CN101890523A (en) * 2009-05-19 2010-11-24 三菱电机株式会社 Utilize the method for adaptively sampled distance fields simulating numerically controlled milling
CN101602122B (en) * 2009-07-15 2011-01-19 天津商业大学 Precision numerical control milling method for thin-wall parts
CN102091908A (en) * 2010-12-31 2011-06-15 沈阳黎明航空发动机(集团)有限责任公司 Numerical control machining method for sector section and annular section parts
CN102091908B (en) * 2010-12-31 2013-11-13 沈阳黎明航空发动机(集团)有限责任公司 Numerical control machining method for sector section and annular section parts
CN102350524A (en) * 2011-08-25 2012-02-15 沈阳飞机工业(集团)有限公司 Milling processing method for inner molding surface of opening end head of thin-walled structural member
CN102350524B (en) * 2011-08-25 2012-11-28 沈阳飞机工业(集团)有限公司 Milling processing method for inner molding surface of opening end head of thin-walled structural member
CN103286360B (en) * 2012-03-02 2015-12-02 沈阳黎明航空发动机(集团)有限责任公司 A kind of tangential offset orthogonal turn-milling cutting method
CN103286360A (en) * 2012-03-02 2013-09-11 沈阳黎明航空发动机(集团)有限责任公司 Tangential offset orthogonal turn-milling machining method
CN102941372A (en) * 2012-10-11 2013-02-27 沈阳理工大学 Large caliber thick-walled tube turn-milling processing method
CN102941372B (en) * 2012-10-11 2015-04-08 沈阳理工大学 Large caliber thick-walled tube turn-milling processing method
CN103611975A (en) * 2013-11-28 2014-03-05 四川石油射孔器材有限责任公司 Blind hole positioning keyway machining device for perforating gun
CN104439452A (en) * 2014-11-24 2015-03-25 湖北三江航天红阳机电有限公司 Efficient grid milling method for inner curved surface of tapered revolving body
CN104841990A (en) * 2015-05-05 2015-08-19 柳州三农科技有限公司 Machining method of H-shaped thin-wall parts
CN105290442A (en) * 2015-11-24 2016-02-03 陈硕 Boring method for large-diameter hole in circular hole
CN107971538A (en) * 2017-09-01 2018-05-01 徐州工程学院 A kind of emulation mode of orthogonal turn-milling finished surface microscopic appearance
CN108515217A (en) * 2018-04-09 2018-09-11 吉林大学 A kind of ball-end milling free form surface surface topography emulation mode
CN108515217B (en) * 2018-04-09 2019-05-31 吉林大学 A kind of ball-end milling free form surface surface topography emulation mode
CN109227054A (en) * 2018-11-02 2019-01-18 首都航天机械有限公司 Complex mesh thin-wall case processing method
CN110293371A (en) * 2019-06-20 2019-10-01 苏州真懿精密器械有限公司 Long line footpath is than thin-walled parts turning-milling complex processing method

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