CN102049555B - Spiral hole milling unit - Google Patents

Spiral hole milling unit Download PDF

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Publication number
CN102049555B
CN102049555B CN2011100084766A CN201110008476A CN102049555B CN 102049555 B CN102049555 B CN 102049555B CN 2011100084766 A CN2011100084766 A CN 2011100084766A CN 201110008476 A CN201110008476 A CN 201110008476A CN 102049555 B CN102049555 B CN 102049555B
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China
Prior art keywords
motor
hole
main body
motor slide
gear
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Expired - Fee Related
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CN2011100084766A
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Chinese (zh)
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CN102049555A (en
Inventor
秦旭达
王�琦
王海艳
孙晓太
陆翠
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Tianjin University
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Tianjin University
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Publication of CN102049555B publication Critical patent/CN102049555B/en
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Abstract

The invention discloses a spiral hole milling unit comprising a main body. A first through hole is arranged in the main body and internally provided with a motor slipper block which is internally provided with a second through hole, a linear motor is fixed in the main body, a nut of the linear motor is fixedly connected with the outer wall of the motor slipper block, a pneumatic motor is fixed at the front end of the motor slipper block, an output shaft of the pneumatic motor is connected with a cutter, the motor slipper block is fixedly arranged in the first through hole in the axis direction of the motor slipper block, and a first gear is connected to the right end surface of the main body, connected with a stepping motor through a second gear which is engaged and matched with the first gear and mounted on an output shaft of the stepping motor. By adopting the linear motor and utilizing a cutter offset system, the spiral hole milling unit has high accuracy and positioning accuracy. The main cutting motion of the cutter of the spiral hole milling unit adopts the pneumatic motor which can be controlled by an electromagnetic valve, and the stepping motor utilized by a revolution system is controlled by electric signals so that intelligent control of the whole unit model machine can be realized easily.

Description

Spiral hole-milling unit
Technical field
The present invention relates to the hole milling unit, be specifically related to spiral hole-milling unit.
Background technology
China is in the period of manufacturing technology fast development now; Cut is as the main fundamental technology of manufacturing technology; Development along with manufacturing technology; Obtained very much progress, having got into to develop high-speed cutting, to develop new Cutting Process and processing method, complete set technology is provided is the developing new stage of characteristic.Aero-Space are one of of paramount importance parts of manufacturing industry, are the new and high technology industries of enrichment the most.In aviation was made, a large amount of parts all need assemble, and needed the thousands of hole of processing, to this type of aviation pilot hole to realize efficiently, high accuracy, high-quality processing, need a kind of new technique replace conventional borehole technological.
PCT application PCT/SE94/00085 discloses a kind of hand-operated tools of drilling.This patent comprises: one can be around the axis of himself and the tool mounting of a main shaft rotation; One is used for along the pivot center parts of this tool mounting of vertical direction adjusted that is positioned at this some surface; Axial feed parts with respect to workpiece, one is used to regulate the main shaft of tool mounting and the parts of the radial distance between the rotation.
Although above-mentioned patent content has been summed up some principles, this disclosed hand-operated tools can not provide a kind of practicable usability scheme and it far can not satisfy in the aviation field requirement to the hole crudy.Because its open defect is: the location armrest is moving, badly influences the positional precision in hole like this, and hand-held, and too big rigidity can not be provided, and this also can have influence on the axiality and the surface quality in hole.A basic demand for this hand-operated tools is exactly a light weight and easy to use, and this patent does not provide the design of a kind of compact conformation and light weight.
200910306026.8 " automatic spiral hole-milling units " of University Of Tianjin's application are to have utilized helical milling technology to solve the drilling problem of aviation difficult-to-machine material equally, have the characteristics of automation with respect to PCT/SE94/00085.But it does not provide the reasonable passage of air motor air inlet and exhaust, and realizes on the structure that the electric rotating machine of revolution is positioned at the unit front end, has increased the axial dimension of unit, and has been unfavorable for the laying of rear end, unit air supply system and control circuit.And the electromagnetic brake moment of electric rotating machine is leaned in the tool offset location, and is fixing unreliable, and the required parts cost of manufacturing cell is higher.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, the spiral hole-milling unit that a kind of precision is high, easy to adjust and size is little is provided.
Spiral hole-milling unit of the present invention; It comprises that two ends are connected the fuselage main body on the bearing block through bearing; In described fuselage main body, having its longitudinal section is rectangular first through hole; In described first through hole, the motor slide is housed, has second through hole in described motor slide inside and motor slide outer wall is a rectangle, linear electric motors be fixed in the fuselage main body and the axis of its nut along axis direction setting perpendicular to the motor slide; The nut of linear electric motors and motor slide outer wall are connected and move up at upper and lower to drive the motor slide; Air motor is fixed on motor slide front end through mounting flange, on the output shaft of described air motor, is connected with cutter, and described motor slide fixedly installs at its axis direction and first through hole through the axis positioner; On fuselage main body right side, be connected with first gear, described first gear through with its engagement fit and output shaft that be installed in stepper motor on second gear link to each other with stepper motor.
Outstanding advantage of the present invention is:
Inner each the component system position of this device unit rationally, reliability and precision are high in processing and the use, and the module units model machine is convenient.This device adopts linear electric motors to apply to the tool offset system, and precision is high, accurate positioning, and cut off self-lock at process cathetus motor, can not receive other electromagnetic interference, and fixing reliable.Air motor is adopted in the main motion of this device Tool in Cutting, and air motor can use the stepper motor of motor-driven valve control and revolution system employs to be signal of telecommunication control, is easy to realize the Based Intelligent Control of whole unit model machine; This unit can be embedded into the automatic drill riveting system of big aircraft assembly center; Form flexibility, intelligent aviation assembly system, also can be used, can accurately locate with manipulator; Easy to adjust, integrated control.
Adopt this unit can obviously improve the efficient of the technology in hole, only need to have reduced tool change time, do not need to carry out again fine finishining, improved efficient so greatly once processing the high-quality hole of different-diameter to cutter.And it is of portable form, and under same precision conditions, greatly reduces large-scale; The dependence of high precision machine tool; Can unite with manipulator simultaneously, can accomplish the work of high accuracy drilling in the whole assembling of aircraft integeral part assembling, improve drilling efficient 30%~40%; With respect to traditional punching technology, helical milling has improved hole quality and intensity significantly simultaneously.Helical milling belongs to the cutting at interrupted intermittence, and lower Milling Force makes the hole that is processed not have burr.Rapid heat dissipation, cutting temperature is low.Tool diameter is littler than the hole, and smear metal well obtains getting rid of, and greatly reduces the roughness of hole surface, under the situation of processing compound material, has eliminated the delamination that tradition punching in the past causes owing to the point of a knife passivation, has peeled off the low-quality situation of hole surface.
Description of drawings
Fig. 1 is that the master of spiral hole-milling unit of the present invention looks cutaway view;
Fig. 2 is the side view of unit shown in Figure 1.
The specific embodiment
Below in conjunction with concrete embodiment, and, the present invention is done further explanation with reference to accompanying drawing:
Spiral hole-milling unit of the present invention as shown in the figure; It comprises that two ends are connected the fuselage main body 4 on the bearing block 1 through bearing 2; In described fuselage main body 4, having its longitudinal section is rectangle first through hole; In described first through hole, motor slide 10 is housed, has second through hole in described motor slide 10 inside and its outer wall is a rectangle, linear electric motors 6 be fixed in the fuselage main body and the axis of its nut along axis direction setting perpendicular to the motor slide; The nut of linear electric motors and motor slide outer wall are connected and move up at upper and lower to drive the motor slide; Air motor 12 is fixed on motor slide left end through mounting flange 11, on the output shaft of described air motor, is connected with cutter 13, and described motor slide 10 fixedly installs at its axis direction and first through hole through the axis positioner; First gear, 5, the second gears 7 that on fuselage main body right side, are connected with second gear, 7 engagement fit are installed on the output shaft of stepper motor 8.
Described axis positioner is used for the location of motor slide on left and right directions; The axis positioner can comprise the locating piece that is arranged on the outer wall of motor slide left side; In described first through hole, be provided with hierarchic structure; Locating piece leans against to contact on the hierarchic structure and is equipped with, and is connected with end cap ring 9 at the right-hand member of first through hole of fuselage main body, the cooperation that contacts with end cap ring 9 of described right side at the motor slide.
The nut of linear electric motors preferably is connected through the long side and the motor slide outer wall of rectangle first through hole; Because the big wall thickness that the motor slide is a rectangle can make full use of motor slide long side provides the installing space of linear electric motors, can reduce the unit radial size like this.
The operation principle of this device is following: cutter 13 again around the revolution of fuselage main body 4 axis, is realized the processing in hole like this with the processing technology of helical milling in around the rotation of center cutter line.The rotation of cutter is realized by air motor 12 or electric main shaft.Radial deflection is realized with fuselage main body 4 relative positions through linear electric motors 6 CD-ROM drive motor slides 10.Revolution is supported whole fuselage main body 4 through bearing 2 and is driven realization at stepper motor 8 through gear 5,7 engagements.
The front end of main shaft is a cutter.Cutter is fixed on the air motor through ER chuck mode.
Connected mode: being connected of air motor 12 and motor slide 10 is to lean on mounting flange 11 to realize that mounting flange 11 parts are stepped up the retained part of air motor 12, and another part is fastened on the motor slide 10 by nut; Motor slide 10 leans on the structure of self to be implemented in the axial location left in the fuselage main body 4, and right-hand member leans on end cap ring 9 fixing, in above-below direction motor slide 10 and fuselage main body 4 slippage relatively, realizes the radial feed of cutter; Linear electric motors 6 are fixed in the fuselage main body 4, and its nut portion and motor slide 10 are connected, and realize the automation feeding, and work in-process can lean on linear electric motors 6 to realize self-locking; Fuselage main body 4 leans on bearing 2 to be installed in the bearing block 1; First gear 5 can lean on the key connection to be connected with fuselage main body 4; Stepper motor 8 is cemented on the matrix of bearing block 1; Lean on the external toothing transferring power of first gear 5 and second gear 7, realize the rotation of fuselage main body 4, promptly cutter 13 is around the revolution motion of fuselage main body 4.
Control mode: the rotating speed control of air motor is to lean on motor-driven valve to realize that the spool aperture of motor-driven valve can change continuously, reaches and realizes air motor stepless speed regulation.The control of offsetting mechanism linear electric motors realizes by driver, and positioning accuracy is high, and the screw-nut structure of linear electric motors is that self-locking structure is that cutter adds reliable fixation is provided man-hour.Revolution is the precision control height of being realized by stepper motor.

Claims (2)

1. spiral hole-milling unit; It is characterized in that: it comprises that two ends are connected the fuselage main body on the bearing block through bearing; In described fuselage main body, having its longitudinal section is rectangular first through hole; In described first through hole, the motor slide is housed, has second through hole in described motor slide inside and motor slide outer wall is a rectangle, linear electric motors be fixed in the fuselage main body and the axis of its nut along axis direction setting perpendicular to the motor slide; The nut of linear electric motors and motor slide outer wall are connected and move up at upper and lower to drive the motor slide; Air motor is fixed on motor slide front end through mounting flange, on the output shaft of described air motor, is connected with cutter, and described motor slide fixedly installs at its axis direction and first through hole through the axis positioner; On fuselage main body right side, be connected with first gear, described first gear through with its engagement fit and output shaft that be installed in stepper motor on second gear link to each other with stepper motor.
2. spiral hole-milling unit according to claim 1 is characterized in that: the nut of linear electric motors is connected through the long side and the motor slide outer wall of rectangle first through hole.
CN2011100084766A 2011-01-14 2011-01-14 Spiral hole milling unit Expired - Fee Related CN102049555B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100084766A CN102049555B (en) 2011-01-14 2011-01-14 Spiral hole milling unit

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Application Number Priority Date Filing Date Title
CN2011100084766A CN102049555B (en) 2011-01-14 2011-01-14 Spiral hole milling unit

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CN102049555A CN102049555A (en) 2011-05-11
CN102049555B true CN102049555B (en) 2012-05-30

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102699395B (en) * 2012-05-15 2015-05-20 上海飞机制造有限公司 Helical milling device
CN102689040B (en) * 2012-05-15 2015-02-11 上海飞机制造有限公司 Hole helical milling device
CN102699403B (en) * 2012-06-21 2014-03-12 天津大学 Automatic spiral hole milling device
CN102794491B (en) * 2012-08-22 2014-05-07 浙江大学 Device and method of automatic helical milling of hole
CN103100734B (en) * 2013-01-24 2015-04-01 南京信息职业技术学院 Drilling tail end actuator
CN103659403B (en) * 2013-11-25 2016-01-20 中国航空工业集团公司北京航空制造工程研究所 The punching device in on-line tuning drilling aperture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4119163A1 (en) * 1991-06-06 1992-12-10 Heinrich Schwanekamp Mill with rotating helix - which supports swinging percussion tools and drives ground product from housing inlet to outlet
US6382890B1 (en) * 1999-09-01 2002-05-07 Novator Ab Hand tool apparatus for orbital drilling
WO2007123499A1 (en) * 2006-04-25 2007-11-01 Zeynep Gurguc Pulp production mill for high quality olive oil
CN101537512A (en) * 2009-04-17 2009-09-23 天津大学 Method for helically milling hole and device thereof
CN101633060B (en) * 2009-08-25 2010-09-08 天津大学 Automatic spiral hole-milling unit
CN101786180B (en) * 2010-03-31 2011-05-18 南京航空航天大学 Helical milling device and method

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