CN102139388B - Helical hole-milling device and method based on numerical control machine - Google Patents
Helical hole-milling device and method based on numerical control machine Download PDFInfo
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- CN102139388B CN102139388B CN2011100881547A CN201110088154A CN102139388B CN 102139388 B CN102139388 B CN 102139388B CN 2011100881547 A CN2011100881547 A CN 2011100881547A CN 201110088154 A CN201110088154 A CN 201110088154A CN 102139388 B CN102139388 B CN 102139388B
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- 238000003801 milling Methods 0.000 title claims abstract description 39
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 241000486406 Trachea Species 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 210000003437 trachea Anatomy 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
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Abstract
The invention discloses a helical hole-milling device and method based on a numerical control machine and belongs to the technical field of helical hole-milling processing. The device is based on a helical milling principle and the helical hole-milling is realized through the coordination of a processed knife handle and the numerical control machine, wherein the needed revolution and feed motions for hole-making is provided by the numerical control machine, the spin is provided by a pneumatic main shaft and the offset is regulated by a worm gear. The device comprises a pneumatic main shaft fixing mechanism, the pneumatic main shaft and an air feed mechanism thereof and a radial offset mechanism. The device provided by the invention has the advantages of simple structure, convenience and fastness in offset adjustment, reliable performance, high processing precision and wide application range, simplified numerical control programming and obviously improved processing efficiency.
Description
Technical field
The present invention relates to a kind ofly, belong to the helical milling processing technique field based on helical milling device on the Digit Control Machine Tool and method.
Background technology
Digit Control Machine Tool is the manufacturing main flow equipment of modern machines, is regarded as the basis of the state national economic development.It is the important foundation of transforming traditional mechanical process unit industry, making up digitlization enterprise that Digit Control Machine Tool reaches the flexibility manufacturing system of being made up of Digit Control Machine Tool, and its development enjoys people to pay close attention to always.Digit Control Machine Tool with the performance of its remarkable flexible automation, excellence and stabilized accuracy, flexible and diversified function cause and catch people's attention.It has started the beginning of engineering goods to the electromechanical integration development, so Numeric Control Technology becomes a core technology in the advanced manufacturing technology.Use through developmental research constantly and to the in-depth of information technology, promoted the further lifting of Digit Control Machine Tool performance and quality, make Digit Control Machine Tool become national economy and equip with the important manufacturing that national defense construction develops.
The crudy that how to improve Digit Control Machine Tool becomes a problem of people's pay attention to day by day, and this patent has carried out some improvement to this operation of hole milling to Digit Control Machine Tool.。
U.S. Pat 0143049 discloses a kind of hand-operated tools that is used for helical milling, patent name: this device of Hand Tool Apparatus For Orbital Drilling. comprises rotation system, revolution system, axial feed system and the radial disbalance guiding mechanism of cutter.During work; Eccentric adjustment utilizes the screw thread transmission that the axis of cutter relative opening is carried out the radial disbalance adjustment; In order to realize the helical milling function; The rotation system of cutter, revolution system, axial feed system have been disposed a pneumatic actuating device respectively, and the revolution motion of cutter is to adopt the one-level gear drive, and this gear is born circumferential rotation and twofold motion function in axial sliding.
In addition, United States Patent (USP) PCT/SE2008/050719 also discloses a kind of auger boring unit, patent name: this device of An Orbital Drilling Tool Unit. mainly comprises cutter rotation system, automatic eccentric adjustment.During work, its eccentric adjustment is to drive the cutter rotation system support housing with inner hole outer circularity off-centre through gear reduction unit of On-line Control servomotor warp and the transmission of one-level band to realize.
Simultaneously, China application (patent) number: 200910068518.8, title: method for helically milling hole and device, this device also are made up of rotation system, rotary drive system, axial feed system, radial offset mechanism four parts of cutter.The radial deflection of cutter is to adopt one to realize the off-centre of cutter rotation system for the inner housing of circular hole and a worm and gear transmission and adjust for oval, interior outward.The rotary speed of cutter is to be controlled by the drive device drives one-level gear drive of rotary drive system, and the cutter amount of feeding vertically is to be controlled by the valve body that has the intake and exhaust amount
System.
United States Patent (USP) An Orbital Drilling Tool Unit and this patent are the most approaching, but because it adopts belt wheel control eccentric, do not have the function of self-locking after off-centre is adjusted, and introduce servomotor control structure more complicated simultaneously.Other patent improves to some extent for eccentric adjusting, but all as a kind of independently milling device, can not well combine with Digit Control Machine Tool, this with regard to limitations greatly their range of application.And the helical milling of Digit Control Machine Tool is to accomplish simultaneously with this two aspect of interpolation of circumferential circular arc through the downward feeding of main shaft.Because the operation of interpolation, the unavoidable existence that residual error is just arranged has influence on the precision of drilling.
Summary of the invention
The object of the present invention is to provide and a kind ofly avoid the interpolation error, improve the drilling precision based on helical milling device on the Digit Control Machine Tool and method.
A kind of based on the helical milling device on the Digit Control Machine Tool, it is characterized in that: comprise pneumatic main shaft fixed mechanism, pneumatic main shaft and gas supply mechanism thereof, radial offset mechanism, process tool; Wherein pneumatic main shaft fixed mechanism comprises urceolus, inner core, bottom end cover, lower bearing, upper end cover, upper bearing (metal), handle of a knife; Wherein bottom end cover and urceolus lower end are fixed, and upper end cover and urceolus upper end are fixing, and the inner core upper end is installed on the upper end cover through upper bearing (metal), and the inner core lower end is installed on the bottom end cover through lower bearing; Handle of a knife one end and bottom end cover are fixed, and the other end links to each other with Digit Control Machine Tool; Wherein pneumatic main shaft and gas supply mechanism thereof comprise collar stop I and the collar stop II that is fixed on the bottom end cover; And be embedded between above-mentioned two blocks can with its annular T type piece that relatively slides, air feed chamber of above-mentioned two blocks and annular T type piece and bottom end cover formation; Above-mentioned pneumatic main shaft and gas supply mechanism thereof comprise that also pneumatic main shaft, an end of the off-centre installation of being fixed in the inner core connect the outer tracheae of the interior tracheae in pneumatic main shaft other end connection air feed chamber, end connection air feed chamber other end connection source of the gas; Above-mentioned pneumatic main shaft stretches out upper end cover and is connected with process tool; Wherein radial offset mechanism and worm gear and worm screw of with this worm gear cooperating of through bearing being installed on urceolus on that be set in the inner core outside fixing by one formed.
Utilize above-mentioned method for helically milling hole based on the helical milling device on the Digit Control Machine Tool; It is characterized in that comprising following process: (a), utilize handle of a knife that helical milling device is integrated on the Digit Control Machine Tool; Main shaft by Digit Control Machine Tool provides the revolution of process tool and the motion on feeding two directions, and above-mentioned revolution refers to that the axis that process tool centers on main shaft of numerical control machine tool is rotated; (b), drive the cutter rotation by pneumatic main shaft; (c), regulate the offset of the relative urceolus of inner core, promptly regulated the offset of cutter with respect to handle of a knife by the rotation of worm and gear.
Digit Control Machine Tool is accomplished Curve Machining by interpolation, and cutter is not the curvilinear motion of strictly processing as requested in the interpolation process, but approaches curve to be processed with dog-leg path, and just there is a bigger mismachining tolerance in this.And helical milling is the wider operation of application surface on the Digit Control Machine Tool, and the interpolation error that reduces even produce when eliminating on the Digit Control Machine Tool by helical milling improves the drilling precision, and is significant.Method for helically milling hole has well solved this problem; There is a revolution in it; Motion on a rotation and three directions of a feeding, the path that revolution motion makes cutter walk is the circle of a standard, this has just been avoided the generation of interpolation error; Cooperate the removal of rotation and feed motion realization material again; Accomplished accurate hole milling operation.Patent has also been carried out a series of research to this both at home and abroad, and as above a joint is said.
Can not well cooperate to domestic existing patented technology, limit its scope of application with Digit Control Machine Tool; And external existing patented technology is structurally complicated and lack the problem of retaining mechanism.This patent has provided a kind of new improved method, at first, handle of a knife is incorporated into the hole milling unit, and this just matches with Digit Control Machine Tool easily, has improved the range of application of device greatly; Next adopts worm gear, and off-centre is regulated in the cooperation of worm screw, and degree of regulation is high and be easy to self-locking, has solved tuningout locking problem afterwards.Make this patent have better feasibility.
The present invention has following effect: the handle of a knife in 1, inventing is that the handle of a knife processing of standard comes, and has improved the scope of using greatly; 2, the device in the invention cooperates with lathe through handle of a knife, and realizing does not need interpolation can accomplish the operation of helical milling.Improve the drilling precision for Digit Control Machine Tool and have great promotion meaning, and used the method for helical milling, improved working (machining) efficiency greatly.3, owing to adopt the worm and gear transmission to regulate side-play amount, gearratio is big, be easy to self-locking, and adjustable extent increases; 4, owing to adopt air motor, be easy to realize High-speed machining, raise the efficiency as the rotation main shaft; 5, the present invention can realize one cutter processing plurality of specifications aperture, has avoided frequent tool changing, and cutting at one time just can reach whole hole dimension, has simplified technological process, has improved drilling efficient.
Description of drawings
Fig. 1. be the cross-sectional view of helical milling device of the present invention;
Fig. 2. be the cross-sectional view of radial offset mechanism of the present invention;
Fig. 3. be vertical view of the present invention, among the figure, cutter is positioned at the maximum offset position;
Label title among the figure: 101. urceolus, 102. inner cores, 103. bottom end covers, 104. lower bearings, 105. upper end covers, 106. upper bearing (metal)s, 107. handle of a knifes; 201. the collar stop I, 202. collar stop II, 203.Annular T type piece, 204. pneumatic main shafts, 205. interior tracheaes, 206. outer tracheaes; 301. worm gear, 302. worm screws; 401. process tool; The bolt of each mechanism's connecting portion and alignment pin do not draw among the figure.
The specific embodiment
The present invention is a kind of based on method for helically milling hole on the Digit Control Machine Tool and device; Mainly be to utilize finished handle of a knife that this device is installed on the Digit Control Machine Tool; The rotation of main shaft of numerical control machine tool is used for the revolution of helical milling, and feeding is provided, install the rotation that cutter is provided self and the adjusting of side-play amount by Digit Control Machine Tool; Like this when the machine tool chief axis slow rotation; Process tool will produce revolution around the axis of machine tool chief axis, cooperate the feeding of machine tool chief axis, realize that finally a cutter can carry out the helical milling operation to multiple different apertures.Below the concrete specific embodiments that the present invention relates to method and apparatus of introducing.
Fig. 1 is disclosed by the invention a kind of based on method for helically milling hole on the Digit Control Machine Tool and device, and this device mainly comprises pneumatic main shaft fixed mechanism, pneumatic main shaft and gas supply mechanism thereof, radial offset mechanism and process tool four parts.
Pneumatic main shaft fixed mechanism; Link to each other with Digit Control Machine Tool through finished handle of a knife 107, handle of a knife 107 and bottom end cover 103 link to each other through the terminal screw thread of handle of a knife, and the downward and bottom end cover 103 of urceolus 101 is connected through the bolt that is uniformly distributed with of periphery; Upwards be connected with shell body end cap 105; Thereby form a complete shell body, inner core 102 is fixed in shell body inside through upper bearing (metal) 106 and lower bearing 104 are rotatable, and has an off-centre.
Pneumatic main shaft and gas supply mechanism thereof; Pneumatic main shaft 204 upper ends link to each other with process tool 401; And the installing hole of the off-centre through end face is installed on the inner core 102, and interior tracheae 205 is connected on the pneumatic main shaft 204 through joint one end, and an end is connected on the bottom end cover 103; The gas that acceptance supplies through annular T type piece 203 from source of the gas is in order to drive pneumatic main shaft.Annular T type piece 203 is through collar stop I 201 and collar stop II 202 rotatable being fixed on the bottom end cover 103, and collar stop I 201 is fixed on the bottom end cover 103 through the screw that circumferentially is uniformly distributed with collar stop II 202.
Radial offset mechanism, worm gear 301 is installed on the inner core 102 through interference fit, and through key moment of torsion is passed on the inner core 102; Worm screw 302 is installed on the urceolus 101 through bearing; And by the bearing cap axial restraint, worm screw 302 1 ends are positioned at urceolus 101 outsides, are used for regulating eccentric.
The operation principle of apparatus of the present invention is following: during drilling; This helical milling device at first utilizes radial offset mechanism that the relative drilling axis of pneumatic main shaft is transferred to required bias state; Utilize pneumatic main shaft and gas supply mechanism thereof that aerodynamic force is imported again; Make pneumatic main shaft realize rotation, through pneumatic main shaft fixed mechanism the revolution of Digit Control Machine Tool and feed motion are sent to then and accomplish hole milling on the milling device and operate.
The radial deflection adjustment is shown in 2.The no deviation post that at first writes down inner core 102 is an initial position; Through wanting the size of drilling, derive side-play amount, calculate the angle of worm gear 301 rotations; Then according to the gearratios of worm gear 301 worm screws 302; Calculate the rotating cycle of worm screw, regulate the axle of worm screw 301 then, forward desired location in urceolus 101 outsides with respect to initial position.
Pneumatic main shaft and gas supply mechanism thereof; The air feed of pneumatic main shaft 204 mainly infeeds through the air feed chamber of being made up of collar stop I 201, collar stop II 202 and the annular T type piece 203 that can rotate in a circumferential direction; During work, the take offence main shaft fixed mechanism rotation of Digit Control Machine Tool rotating band, annular T type piece 203 is motionless with respect to the lathe body; Guarantee that outside tracheae not by around extremely, imports gas smoothly.
Inner core 102 in the pneumatic main shaft fixed mechanism; The installing hole and the axis of self of itself and pneumatic main shaft have a side-play amount e; Also there is a same side-play amount e between the bearing mounting hole on upper end cover 105 and the bottom end cover 103 and the axis of urceolus 101; After pneumatic main shaft fixed mechanism installed, just there are a maximum 2e adjustable eccentric amount in process tool and shell body center machining hole axis, and be as shown in Figure 3.
The above is merely a preferred embodiments based on method for helically milling hole on the Digit Control Machine Tool and device that the present invention relates to, but practical range of the present invention is not limited thereto example.
Claims (2)
1. helical milling device based on Digit Control Machine Tool is characterized in that:
Comprise pneumatic main shaft fixed mechanism, pneumatic main shaft and gas supply mechanism thereof, radial offset mechanism, process tool (401);
Wherein pneumatic main shaft fixed mechanism comprises urceolus (101), inner core (102), bottom end cover (103), lower bearing (104), upper end cover (105), upper bearing (metal) (106), handle of a knife (107); Wherein bottom end cover and urceolus lower end are fixed, and upper end cover and urceolus upper end are fixing, and the inner core upper end is installed on the upper end cover through upper bearing (metal), and the inner core lower end is installed on the bottom end cover through lower bearing; Handle of a knife one end and bottom end cover are fixed, and the other end links to each other with Digit Control Machine Tool;
Wherein pneumatic main shaft and gas supply mechanism thereof comprise collar stop I (201) and the collar stop II (202) that is fixed on the bottom end cover; And be embedded between above-mentioned two blocks can with its annular T type piece (203) that relatively slides, air feed chamber of above-mentioned two blocks and annular T type piece and bottom end cover formation; Above-mentioned pneumatic main shaft and gas supply mechanism thereof comprise that also pneumatic main shaft (204), an end of the off-centre installation of being fixed in the inner core connect the outer tracheae (206) of the interior tracheae (205) in pneumatic main shaft other end connection air feed chamber, end connection air feed chamber other end connection source of the gas; Above-mentioned pneumatic main shaft stretches out upper end cover and is connected with process tool (401);
Wherein radial offset mechanism and worm gear (301) and worm screw (302) of with this worm gear cooperating of through bearing being installed on urceolus on that be set in the inner core outside fixing by one formed.
2. utilize the said method for helically milling hole of claim 1, it is characterized in that comprising following process based on the helical milling device on the Digit Control Machine Tool:
(a), utilize handle of a knife that helical milling device is integrated on the Digit Control Machine Tool, by the main shaft of Digit Control Machine Tool the revolution of process tool and the motion on feeding two directions are provided, above-mentioned revolution refers to that the axis that process tool centers on main shaft of numerical control machine tool is rotated;
(b), drive the cutter rotation by pneumatic main shaft;
(c), regulate the offset of the relative urceolus of inner core, promptly regulated the offset of cutter with respect to handle of a knife by the rotation of worm and gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100881547A CN102139388B (en) | 2011-04-08 | 2011-04-08 | Helical hole-milling device and method based on numerical control machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100881547A CN102139388B (en) | 2011-04-08 | 2011-04-08 | Helical hole-milling device and method based on numerical control machine |
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| CN102139388A CN102139388A (en) | 2011-08-03 |
| CN102139388B true CN102139388B (en) | 2012-07-25 |
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| CN2011100881547A Expired - Fee Related CN102139388B (en) | 2011-04-08 | 2011-04-08 | Helical hole-milling device and method based on numerical control machine |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689040B (en) * | 2012-05-15 | 2015-02-11 | 上海飞机制造有限公司 | Hole helical milling device |
| CN102658391A (en) * | 2012-05-18 | 2012-09-12 | 大连理工大学 | Spiral hole milling device |
| CN103042262B (en) * | 2013-01-05 | 2014-10-22 | 南京航空航天大学 | Integrated finish machining method for inner profile and corner of pocket |
| CN103128354B (en) * | 2013-01-31 | 2015-03-11 | 南京航空航天大学 | Eccentricity adjustment mechanism and handheld helical hole milling device thereof and helical hole milling method |
| CN103192125B (en) * | 2013-03-28 | 2014-11-12 | 大连理工大学 | Portable spiral hole milling device and machining method |
| CN103785884A (en) * | 2014-01-09 | 2014-05-14 | 孙忻 | Screw type hole milling device |
| CN104552278B (en) * | 2015-01-15 | 2015-12-30 | 南京信息职业技术学院 | A kind of robotize spiral punching system |
| CN106670553B (en) * | 2017-02-24 | 2018-06-12 | 大连交通大学 | Planetary reduction gear formula adjusts eccentricity helical milling device |
| CN110142631B (en) * | 2019-05-01 | 2024-02-06 | 宁夏共享精密加工有限公司 | Device for fixing cutter by matching with extension of spindle |
| CN111390251B (en) * | 2020-04-17 | 2021-08-06 | 哈尔滨创沃铭机电科技有限公司 | Inclination angle eccentric integrated precise hole milling device and hole milling method |
| CN113732378A (en) * | 2021-09-06 | 2021-12-03 | 山东华宇工学院 | Transposition handle of a knife that numerically controlled fraise machine used |
| CN116423219B (en) * | 2023-05-19 | 2023-12-05 | 沈阳华秦航发科技有限责任公司 | Spiral hole milling device and method on numerical control machine tool |
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| WO2002102535A1 (en) * | 2001-06-18 | 2002-12-27 | Novator Ab | Fixation device for a portable orbital drilling unit |
| WO2009005446A1 (en) * | 2007-07-05 | 2009-01-08 | Novator Ab | An orbital drilling tool unit |
| CN101537512A (en) * | 2009-04-17 | 2009-09-23 | 天津大学 | Method for helically milling hole and device thereof |
| CN101633060A (en) * | 2009-08-25 | 2010-01-27 | 天津大学 | Automatic spiral hole-milling unit |
-
2011
- 2011-04-08 CN CN2011100881547A patent/CN102139388B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002102535A1 (en) * | 2001-06-18 | 2002-12-27 | Novator Ab | Fixation device for a portable orbital drilling unit |
| WO2009005446A1 (en) * | 2007-07-05 | 2009-01-08 | Novator Ab | An orbital drilling tool unit |
| CN101537512A (en) * | 2009-04-17 | 2009-09-23 | 天津大学 | Method for helically milling hole and device thereof |
| CN101633060A (en) * | 2009-08-25 | 2010-01-27 | 天津大学 | Automatic spiral hole-milling unit |
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