CN104325183B - Adjustable eccentric helical hole milling device - Google Patents
Adjustable eccentric helical hole milling device Download PDFInfo
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- CN104325183B CN104325183B CN201410587316.5A CN201410587316A CN104325183B CN 104325183 B CN104325183 B CN 104325183B CN 201410587316 A CN201410587316 A CN 201410587316A CN 104325183 B CN104325183 B CN 104325183B
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- rack sleeve
- slide
- sleeve
- groove
- straight line
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses an adjustable eccentric helical hole milling device, belonging to a stock-removing machine part. A conventional drilling process has the defects of low processing precision and low efficiency and requires disposing of a large quantity of processing tools when being used for processing aerospace parts. According to the adjustable eccentric helical hole milling device, a revolution motor is adopted to transmit and drive a transmission sleeve to revolute through a synchronization belt loop, a linear slot perpendicular to a shaft axis is arranged in an inner cavity of the transmission sleeve, a corresponding clamping tenon is arranged on the outer surface of a main shaft sleeve, the clamping tenon is matched with a linear neck to support the main shaft sleeve to be installed in the inner cavity of the transmission sleeve, an electric main shaft realizing revolution is installed in a shaft hole of the main shaft sleeve by means of a bearing support, so that helical hole milling is realized; an eccentric regulating mechanism capable of realizing conversion from axial slip of a slide into radial displacement of the main shaft sleeve drives the electric main shaft to generate a displacement under the guide of slip of matching of the clamping tenon and the linear neck, so that radial eccentric displacement between the shaft axis of the electric main shaft and the shaft axis of the transmission sleeve is realized, the axial slip distance of the slide is regulated so that the adjustment of the pore diameter can be realized, and the processing precision and efficiency are improved.
Description
Technical field
The invention belongs to cutting machine tool part device, especially relevant with a kind of adjustable eccentric helical milling device.
Background technology
In Aero-Space parts manufacture, use by difficult-to-machine materials such as titanium alloy, carbon fibre reinforced composite, high intensity aerolites in a large number, the processability of these materials is poor, and structurally need to bore hole the most not of uniform size, if using conventional borehole processes, drilling axial force is relatively big, and the machining accuracy of drilling is low, working (machining) efficiency is low, and need to prepare substantial amounts of process tool, deficiency in economic performance.
Summary of the invention
The purpose of the present invention aims to solve the problem that and uses conventional borehole technique drilling machining accuracy in Aero-Space parts manufacture and efficiency is low, the problem that needs to configure a large amount of process tool, it is provided that a kind of working (machining) efficiency and the of a relatively high adjustable eccentric helical milling device of machining accuracy.
nullFor this，The present invention is by the following technical solutions: adjustable eccentric helical milling device，It is characterized in that，Described adjustable eccentric helical milling device includes pedestal、Drive socket、Rack sleeve、Electro spindle、Revoluting motor and eccentric adjustment，Pedestal is provided with circular hole，The circular hole that drive socket is installed on pedestal by bearings，Revoluting motor drives drive socket to rotate by Timing Belt and synchronous belt pulley transmission，Drive socket is provided with axially extending bore inner chamber，Through hole inner chamber is provided with straight line draw-in groove，Rack sleeve outer surface arranges the trip corresponding with described straight line draw-in groove，Described trip and described straight line card slot fit supports main shaft sleeve are installed in drive socket through hole inner chamber，Trip can sliding in straight line draw-in groove，And glide direction is axially vertical with rack sleeve，Rack sleeve is provided with axis hole，Electro spindle is installed in the axis hole of rack sleeve by bearings；Described eccentric adjustment includes rotating seat, slide, the guiding mechanism that slide is play the guiding role along rack sleeve axial straight line sliding and the drive mechanism of driving slide sliding, rotating seat is connected by axially bearing fit the most in the same direction axial with rack sleeve with slide, slide band moves axially along rack sleeve with rotating seat, rotating seat arranges the leg of extension, leg is formed with described rack sleeve rear end during moving axially along rack sleeve with slide can being connected with relative motion, the terminal being connected only has relative displacement relative to the starting point being connected on the direction of the axial and described trip sliding of rack sleeve, the relative motion of leg and rack sleeve movement locus between the terminal being connected and the starting point being connected is straight line, rack sleeve is rotated with rotating seat by a tape.nullWhen drive mechanism drives slide axially to go up sliding along rack sleeve，Owing to slide is by the guide and limit of guiding mechanism，Slide can only be along rack sleeve axial straight line sliding，Rotating seat the most just can only be along rack sleeve axial straight line sliding，The terminal being connected will appear as rack sleeve displacement in described trip glide direction relative to the starting point being connected in the relative displacement on the direction of sliding in described straight line draw-in groove of described trip，Form the center displacement of rack sleeve axis hole centrage and drive socket axial line，When drive socket rotates，Rack sleeve band revolves round the sun with drive socket axial line bias with electro spindle，Realize helical milling drilling while axial feed，Aperture is determined by the side-play amount of rack sleeve axis hole centrage with drive socket axial line，And this side-play amount is determined by the relative displacement of the leg on rotating seat and rack sleeve rear end，As long as just can be adjusted the side-play amount of rack sleeve axis hole centrage and drive socket axial line by the relative displacement of drive mechanism adjustment leg and rack sleeve rear end，Thus adjust drilling aperture.
As technique scheme being supplemented and perfect, present invention additionally comprises techniques below feature.
Described drive mechanism includes driving motor and screw pair, and the screw mandrel of screw pair is fixing with driving motor to be connected, and the feed screw nut of screw pair is fixing with described slide to be connected.
Described both sides, rack sleeve rear end respectively arrange two guide surface being parallel to each other, the guide surface of both sides is parallel to each other, every two, side guide surface forms guide way to folder, guide surface is parallel to the rack sleeve axis hole radial line vertical with described trip glide direction, and form acute angle with rack sleeve axis hole centrage, described rotating seat both sides respectively arrange a described leg, supported by short axle on each leg and two rollers are installed, two rollers of every side corresponding two guide surface contacting against described rack sleeve side respectively, guide way is formed clamping, when rotating seat is with slide sliding, roller will roll in guide surface, and guide way is produced pressure, sliding in the trip on drive shaft sleeve straight line draw-in groove on drive socket, produce center displacement.
Described drive socket is mainly fixed docking by end cylinder and cup and is formed, two pieces of groove blocks are fixedly mounted in the inner chamber of cylinder butt end, the end, one relative groove of opening is respectively set on two pieces of groove blocks, as described straight line draw-in groove, cup butt end is pressed against groove block, and groove block is carried out axial limiting.
Described guiding mechanism is that linear guides is secondary.
The present invention can reach following beneficial effect: 1, the electro spindle rotation that the present invention is equipped with adjustable eccentric by drive socket revolution realizes helical milling mode drilling, drilling aperture is adjustable, the drilling processing of different pore size is can be achieved with without changing cutter, improve working (machining) efficiency, and the drilling processing of applicable difficult-to-machine material；2, eccentric adjustment uses motor by screw pair driving axial sliding as eccentric drive power, using roller to clamp oblique guide way is radial disbalance displacement by axial power-conversion, side-play amount controls accurately, make pore size control precision high, improve drilling machining accuracy, and relatively little Liao mechanism radial dimension, make apparatus structure compact, taking up room little, mechanical stability is good.
Accompanying drawing explanation
Fig. 1 is the front view of the present invention.
Fig. 2 is the top view of the present invention.
Fig. 3 is the left view of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in detail.
As shown in FIG. 1 to 3, the present invention includes pedestal 3, drive socket 4, rack sleeve 2, electro spindle 1, revoluting motor 11 and eccentric adjustment, pedestal 3 is provided with circular hole, drive socket 4 is installed through the circular hole on pedestal 3 and by the bearings in circular hole, drive socket rear end is set with a synchronous pulley, synchronous pulley it is set with in revoluting motor rotating shaft, Timing Belt 5 it is set with on two synchronous pulleys, revoluting motor 11 drives drive socket 4 to rotate by Timing Belt 5 and synchronous belt pulley transmission, drive socket 4 is mainly fixed docking by end cylinder and cup and is formed, two pieces of groove blocks are fixedly mounted in the inner chamber of cylinder butt end, the end, one relative groove of opening is respectively set on two pieces of groove blocks, as straight line draw-in groove, cup butt end is pressed against groove block, groove block is carried out axial limiting；Two that protrude and corresponding with described straight line draw-in groove trips are set in the middle part of rack sleeve 2 outer surface, trip inlay card forms cooperation in straight line draw-in groove, thus supports main shaft sleeve is installed in drive socket through hole inner chamber, trip can sliding in straight line draw-in groove, and glide direction is axially vertical with rack sleeve, rack sleeve is provided with axis hole, and electro spindle 1 is installed in the axis hole of rack sleeve by bearings, and the centrage of electro spindle axis and rack sleeve is coaxial；Described eccentric adjustment include rotating seat 6, slide 8, as the linear guides secondary 13 of guiding mechanism with drive the drive mechanism of slide sliding, slide 8 is fixing with the slide block of linear guides pair 13 to be connected, the guide rail fixed installation that linear guides is secondary, its axially with rack sleeve 2 axial the most in the same direction, by linear guides, slide is play the guiding role along rack sleeve axial straight line sliding, rotating seat 6 arranges axially extending bore, slide 8 front end penetrates axially extending bore and is connected by bearings, and slide band moves axially along rack sleeve with rotating seat；Both sides, rack sleeve 2 rear end respectively arrange two guide surface being parallel to each other, the guide surface of both sides is parallel to each other, every two, side guide surface forms guide way 9 to folder, guide surface is parallel to the rack sleeve axis hole radial line vertical with described trip glide direction, and form acute angle with rack sleeve axis hole centrage, guide surface is relative to rack sleeve axis hole centerline dip, rotating seat 6 both sides respectively arrange the leg 7 of an extension, supported by short axle on each leg and two rollers 10 are installed, two rollers of every side corresponding two guide surface contacting against described rack sleeve side respectively, guide way 9 is formed clamping, rack sleeve is rotated with rotating seat by a tape；Drive mechanism includes driving motor 12 and screw pair, and the screw mandrel of screw pair is fixing with driving motor to be connected, and the feed screw nut of screw pair is fixing with described slide to be connected.
When rotating seat is with slide sliding, roller will roll in guide surface, owing to slide is by the guide and limit of linear guides pair, slide can only be along rack sleeve axial straight line sliding, rotating seat the most just can only be along rack sleeve axial straight line sliding, guide way will be produced pressure when roller rolls in guide surface, this pressure radially has component at rack sleeve, thus oppress rack sleeve band and under trip and straight line card slot fit sliding guide, produce displacement with electro spindle diametrically, it is achieved electro spindle axial line and the center displacement of drive socket axial line；When drive socket rotates, rack sleeve band revolves round the sun with drive socket axial line bias with electro spindle, realize helical milling drilling while axial feed, aperture is determined by the side-play amount of rack sleeve axis hole centrage with drive socket axial line, and this side-play amount is determined by the relative displacement of the leg on rotating seat and rack sleeve rear end, as long as just can be adjusted the side-play amount of rack sleeve axis hole centrage and drive socket axial line by the relative displacement of drive mechanism adjustment leg and rack sleeve rear end, thus adjust drilling aperture.
Claims (4)
1. adjustable eccentric helical milling device, it is characterized in that: described adjustable eccentric helical milling device includes pedestal, drive socket, rack sleeve, electro spindle, revoluting motor and eccentric adjustment, pedestal is provided with circular hole, the circular hole that drive socket is installed on pedestal by bearings, revoluting motor drives drive socket to rotate by Timing Belt and synchronous belt pulley transmission, drive socket is provided with axially extending bore inner chamber, through hole inner chamber is provided with straight line draw-in groove, rack sleeve outer surface arranges the trip corresponding with described straight line draw-in groove, described trip and described straight line card slot fit supports main shaft sleeve are installed in drive socket through hole inner chamber, trip can sliding in straight line draw-in groove, and glide direction is axially vertical with rack sleeve, rack sleeve is provided with axis hole, electro spindle is installed in the axis hole of rack sleeve by bearings；Described eccentric adjustment includes rotating seat, slide, the guiding mechanism that slide is play the guiding role along rack sleeve axial straight line sliding and the drive mechanism of driving slide sliding, rotating seat is connected by axially bearing fit the most in the same direction axial with rack sleeve with slide, slide band moves axially along rack sleeve with rotating seat, rotating seat arranges the leg of extension, leg is formed with described rack sleeve rear end during moving axially along rack sleeve with slide can being connected with relative motion, the terminal being connected only has relative displacement relative to the starting point being connected on the direction of the axial and described trip sliding of rack sleeve, the relative motion of leg and rack sleeve movement locus between the terminal being connected and the starting point being connected is straight line, rack sleeve is rotated with rotating seat by a tape.
Adjustable eccentric helical milling device the most according to claim 1, it is characterised in that: described drive mechanism includes driving motor and screw pair, and the screw mandrel of screw pair is fixing with driving motor to be connected, and the feed screw nut of screw pair is fixing with described slide to be connected.
Adjustable eccentric helical milling device the most according to claim 2, it is characterized in that: described both sides, rack sleeve rear end respectively arrange two guide surface being parallel to each other, the guide surface of both sides is parallel to each other, every two, side guide surface forms guide way to folder, guide surface is parallel to the rack sleeve axis hole radial line vertical with described trip glide direction, and form acute angle with rack sleeve axis hole centrage, described rotating seat both sides respectively arrange a described leg, supported by short axle on each leg and two rollers are installed, two rollers of every side corresponding two guide surface contacting against described rack sleeve side respectively, guide way is formed clamping.
Adjustable eccentric helical milling device the most according to claim 3, it is characterized in that: described drive socket is mainly fixed docking by end cylinder and cup and formed, two pieces of groove blocks are fixedly mounted in the inner chamber of cylinder butt end, the end, one relative groove of opening is respectively set on two pieces of groove blocks, as described straight line draw-in groove, cup butt end is pressed against groove block, and groove block is carried out axial limiting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587316.5A CN104325183B (en) | 2014-10-28 | 2014-10-28 | Adjustable eccentric helical hole milling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587316.5A CN104325183B (en) | 2014-10-28 | 2014-10-28 | Adjustable eccentric helical hole milling device |
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| Publication Number | Publication Date |
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| CN104325183A CN104325183A (en) | 2015-02-04 |
| CN104325183B true CN104325183B (en) | 2017-01-11 |
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| CN201410587316.5A Active CN104325183B (en) | 2014-10-28 | 2014-10-28 | Adjustable eccentric helical hole milling device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109954908A (en) * | 2017-12-22 | 2019-07-02 | 西安增材制造国家研究院有限公司 | Portable punching device and its application method |
| CN107984015A (en) * | 2018-01-10 | 2018-05-04 | 东北大学 | A kind of helical milling device for composite material |
| CN109622994B (en) * | 2019-01-28 | 2023-08-22 | 河南理工大学 | Reprocessing device for hole reaming and non-hole repairing in hole machining |
| CN111604527B (en) * | 2020-04-30 | 2022-07-15 | 沈阳工业大学 | End executing device for spiral hole milling |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009005446A1 (en) * | 2007-07-05 | 2009-01-08 | Novator Ab | An orbital drilling tool unit |
| ES2380394T3 (en) * | 2008-11-03 | 2012-05-11 | Brandt Kantentechnik Gmbh | Machining equipment |
| CN102699403B (en) * | 2012-06-21 | 2014-03-12 | 天津大学 | Automatic spiral hole milling device |
| CN203804251U (en) * | 2014-03-28 | 2014-09-03 | 浙江日发精密机械股份有限公司 | Rotating device of driven tool holder |
| CN203765053U (en) * | 2014-04-28 | 2014-08-13 | 浙江日发航空数字装备有限责任公司 | Automatic spiral hole milling device |
| CN204148591U (en) * | 2014-10-28 | 2015-02-11 | 浙江日发航空数字装备有限责任公司 | A kind of helical milling device |
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