CN202963571U - Automatic helical hole-milling device - Google Patents
Automatic helical hole-milling device Download PDFInfo
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- CN202963571U CN202963571U CN 201220280200 CN201220280200U CN202963571U CN 202963571 U CN202963571 U CN 202963571U CN 201220280200 CN201220280200 CN 201220280200 CN 201220280200 U CN201220280200 U CN 201220280200U CN 202963571 U CN202963571 U CN 202963571U
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Abstract
The utility model discloses an automatic helical hole-milling device for porous systems of large-sized workpieces. The device comprises an L-shaped bracket, a revolution radius adjusting mechanism, a tool autoroatation speed governing mechanism and a helical feeding mechanism, wherein the revolution radius adjusting mechanism, the tool autoroatation speed governing mechanism and the helical feeding mechanism are arranged on the bracket. The automatic helical hole-milling device disclosed by the utility model both can be used as a hand-held helical hole-making tool and a tail-end execution unit of a robot automatic hole-making system; and the device can greatly improve the machining quality and efficiency of porous systems of large-sized workpieces.
Description
Technical field
The utility model discloses a kind of automatic helical-milling device for the large-scale workpiece porous series, belong to flexible Machining Technology for Cutting field.
Background technology
Along with domestic secondary-line-aircraft ARJ21 successfully goes into operation and constantly propelling of bus C919 development, how to improve the quality of large-scale skeleton assembling drilling and the study hotspot that efficient becomes the complete machine general assembly stage.The robotize automatic punching system is the Developing mainstream of large-scale, the intelligent drilling of ultra-large workpiece of aircraft from now on.But such punching system adopts traditional drilling technique due to more, and when causing drilling, axial force is excessive, is only applicable at present the processing occasion of small-bore, and bore process often needs to adopt the multiple tracks clustered operation, and a large amount of tool changing links need to be set.For difficult-to-machine materials such as the large aperture drilling requirement, the especially titanium alloy that satisfy different aeronautical materials, carbon fibre reinforced composite material, high strength aerolites, in the urgent need to developing some towards the new and effective accurate punching device of large-scale workpiece.
Helical milling, also referred to as the rail mounted hole milling, it is not the simple combination of drilling and two kinds of processing methods of milling with the new technology of milling mode to the direct drilling of entity workpiece to be one, but utilizes the three-dimensional spiral feeding of the relative workpiece of cutter to complete the processing in hole.During drilling, cutter is treated the biasing of drilling axis mutually, makes this technology have the function that a cutter is processed multiple aperture, can make the hole reach the instructions for use of regulation at aspects such as positional precision, form accuracy, surface roughnesses by less operation simultaneously.Therefore, the robotize punching system based on the helical milling technology has broad application prospects in the large-scale workpiece high-efficiency and precision drilling in the fields such as Aeronautics and Astronautics, shipbuilding.So far, aviation field some occur in succession based on the punching device patent report of helical milling technology both at home and abroad.
As, United States Patent (USP) PCT/SE2008/050719, US2003/0143049, PCT/SE03/00467 disclose several helical milling devices, and these devices all comprise cutter revolution radius regulating system, cutter self-rotating system, cutter revolution system, cutter axial feeding system.Four sub-systems are all taked independent control, make whole device integrated level not high, cause overall mass to be laid particular stress on, and this performance requirement to supporting with it workbench is very high, especially the joint type manipulator.
And for example, the disclosed a kind of automatic spiral hole-milling unit of Chinese patent CN101633060A, this hole milling unit mainly comprises three parts by cutter self-rotating system, radial deflection system, revolution system, but this spiral hole-milling unit is used its engineering and has been subject to certain limitation because lacking axial feeding system.
For another example, the disclosed a kind of milling device of Chinese patent CN101664821A, this device has revolution radius regulatory function, but the size of revolution radius is because being subject to the restriction of travelling gear size, the difficult processing that makes the part small-bore is completing, and its axial feeding system does not provide the relevant detailed case of implementing.
In addition, Chinese patent CN101786180A, CN102145405 A disclose two kinds of helical milling devices, and these two kinds of helical milling devices do not possess revolution radius automatic regulation function, thereby make the working (machining) efficiency in hole be subject to certain influence.
The utility model content
The technical problems to be solved in the utility model be existing helical milling device design exist automaticity not high, form complex structure, complete machine weight is bigger than normal.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of automatic helical-milling device for the large-scale workpiece porous series, comprise L-type sectional shelf-unit, be arranged on the screwfeed mechanism on sectional shelf-unit, and be loaded on the in-house revolution radius governor motion of screwfeed, cutter rotation speed adjusting gear; Sectional shelf-unit: comprise the base plate of horizontal direction, the backboard of vertical direction; Screwfeed mechanism: comprise axial feed housing, screw mandrel, support tube, and the axial slider that is positioned at support tube; Slide with sectional shelf-unit base plate upper rail by slide block and be connected in the bottom of axial feed housing; Support tube is positioned at the rear portion of backboard, is provided with vertically gib block on its inwall, is connected so that slide rail is secondary between the lateral surface of gib block and axial slider; Axial feed driver output axle is provided with driving gear, and the driven gear that is meshed with driving gear is socketed in the input of screw mandrel; After screw mandrel ran through the combination bearing that is loaded on axial slider upper bearing (metal) one, backboard and transition end cap one from back to front successively, its output inserted transition end cap two endoporus; The axial feed housing that is connected with transition end cap one is connected with the revolution housing by the bearing of two ends endoporus, and axial feed housing revolution housing small end is provided with an eccentric inner hole; Revolution radius governor motion: comprise that the supports end cap that is connected with hole end surface in the revolution housing, the revolution radius adjusting that is loaded on supports end cap drive, and the pinion of interior engagement and gear wheel; The revolution radius is regulated the driver output axle and is connected pinion, and gear wheel connects cutter rotation speed adjusting gear; Supports end cap also is provided with an eccentric inner hole; Cutter rotation speed adjusting gear: the rotation that comprise rotation housing, rotation housing end plug, knife bar, cutter, is arranged in the rotation housing drives; The rotation housing is installed in the eccentric orfice of revolution housing, also is provided with connection bearing one between itself and eccentric orfice inwall, and its input passes bearing two, and is socketed with aforementioned gear wheel; Rotation drives and is loaded in the eccentric orfice of rotation housing end plug, and its output shaft connects knife bar; The knife bar front end is equipped with cutter, adopts nut to clamp.
For improving the support effect of sectional shelf-unit, support also comprises the stiffener of two right angled triangles, and two right-angle sides of stiffener are fitted and connected respectively base plate and backboard.
For rotatablely moving of screw mandrel of assurance can be realized the screwfeed of cutter, above-mentioned screw mandrel adopts spline joints with the transition end cap two of revolution housing, and axially also tight with stop nut, and the combination bearing interference of the transition end cap one of screw mandrel and axial feed housing simultaneously matches.
For guaranteeing that milling device possesses multiple drilling function, after revolution housing and supports end cap assembling, both eccentric orfices are coaxial; The offset equal and opposite in direction of the eccentric inner hole of revolution housing and rotation housing end plug, and both are partial on the contrary when being positioned at original state, thus realize: and when being zero, the drilling mode is conventional borehole when the radius that revolves round the sun; When the revolution radius was not equal to zero, the drilling mode was helical milling.
As a kind of improvement project of the present utility model, rotation drives adopts air motor or electric main shaft.
The utlity model has following effect: 1, the adjustment of cutter revolution radius takes drive unit automatically to control, and has both realized the function of a cutter porous, also makes the degree of regulation of revolution radius obtain fine assurance, and this has improved the effect and quality of drilling greatly; 2, realize cutter screwfeed by a multi-functional screw mandrel and a drive unit, the composition that simplifies the structure has reduced complete machine weight; 3, the kind of drive all adopts interior meshed gears assembly, has guaranteed the driving force of device, has dwindled the radial dimension of device; 4, all adopt precision bearing or high accuracy line slideway auxiliary to carry out interworking between each moving component of device and connect, can effectively guarantee the machining accuracy of helical milling.
Description of drawings
Fig. 1 is the stereogram of the utility model automatic helical-milling device.
Fig. 2 is the structural representation of the utility model automatic helical-milling device.
Fig. 3 is Fig. 2 top view.
Label title in Fig. 1, Fig. 2, Fig. 3:
100, screwfeed mechanism, 101, support tube, 102, axial feed drives, 103, axial slider, 104, driving gear 105, driven gear, 106, bearing one, 107, bearing (ball) cover one, 108, screw mandrel, 109, combination bearing end cap, 110, transition end cap one, 111, combination bearing, 112, stop nut, 114, bearing two, 115, transition end cap two, 116, revolution housing, 117, the axial feed housing, 118, slide block, 119, bearing five, 120, bearing (ball) cover five, 121, gib block;
200, revolution radius governor motion, 201, supports end cap, 202, revolution regulates and drive, 203, pinion, 204, gear wheel, 205, bearing three, 206, bearing (ball) cover three, 207, bearing four;
300, cutter rotation speed adjusting gear, 301, rotation drives, 302, the rotation housing, 303, the rotation housing end plug, 304, screw, 305, knife bar, 306, nut, 307, cutter;
400, sectional shelf-unit, 401, base plate, 402, backboard, 403, stiffener, 404, slide rail.
The specific embodiment
Below in conjunction with accompanying drawing and concrete embodiment, auto spiral punching device of the present utility model and method are described in detail.
Illustrated in figures 1 and 2 is the disclosed a kind of automatic helical-milling device for the large-scale workpiece porous series of the utility model, this device mainly comprise L-type sectional shelf-unit 400, be arranged on the screwfeed mechanism 100 on sectional shelf-unit 400, and the revolution radius governor motion 200, the cutter rotation speed adjusting gear 300 that are loaded on screwfeed mechanism 100 inside;
Sectional shelf-unit 400 comprises the base plate 401 of horizontal direction, the backboard 402 of vertical direction, the stiffener 403 of two right angled triangles, and two right-angle sides of stiffener 403 are fitted and connected respectively base plate 401 and backboard 402, and is arranged on support 400 axial both sides;
Revolution radius governor motion 200: comprise that the supports end cap 201 that is connected with the interior hole end surface of revolution housing 116, the revolution radius adjusting that is loaded on supports end cap 201 drive 202, and the pinion 203 of interior engagement and gear wheel 204; The revolution radius is regulated and is driven 202 output shafts connection pinions 203, and gear wheel 204 connects cutter rotation speed adjusting gears 300; Supports end cap 201 also is provided with an eccentric inner hole.
Cutter rotation speed adjusting gear 300: the rotation that comprise rotation housing 302, rotation housing end plug 303, knife bar 305, cutter 307, is arranged in rotation housing 302 drives 301; Rotation housing 302 is installed in the eccentric orfice of revolution housing 116, also is provided with connection bearing 4 207 between itself and eccentric orfice inwall, and its input passes bearing 3 205, and is socketed with aforementioned gear wheel 204; Rotation drives 301 and is loaded in the eccentric orfice of rotation housing end plug 303, and its output shaft connects knife bar 305; Knife bar 305 front ends are equipped with cutter 307, adopt nut 306 to clamp;
After revolution housing 116 assembled with supports end cap 201, both eccentric orfices were coaxial; The offset equal and opposite in direction of both eccentric inner holes of revolution housing 116 and rotation housing end plug 303, and both are partial on the contrary when being positioned at original state;
Aforesaid rotation drives 301 and adopts air motor or electric main shaft.
The operation principle of the utility model device is as follows:
Before helical milling, according to treating aperture and tool diameter, the revolution radius regulate to drive 202 pinion 203 and gear wheels 204 by interior engagement and drives rotation housings 301 and be rotated around the axial line of feeding revolution housing 116 eccentric orfices, thereby realizes the adjustment of cutter revolution radius.
During helical milling, axial feed drives 102 driving gear 104 and driven gears 105 by interior engagement and drives screw mandrel 108 generation rotations, combination bearing 111, leading screw 108 output spline joint sections and comprise gib block 121 and the common constraint of the guideway that slide rail 404 forms under, the output of screw mandrel 108 drive screwfeed mechanism 100, cutter rotation speed adjusting gear 200 and revolution radius governor motion 300 complete move forward and backward in, also be with cutter rotation speed adjusting gear 200 and revolution radius governor motion 300 to revolve round the sun; Rotation drives 301 and regulates the rotational velocity of controlling cutter 307, finally completes helical milling.
The automatic helical-milling device that the above only relates to for the utility model and a better case study on implementation of method, but practical range of the present utility model is not limited to this example.
Claims (5)
1. automatic helical-milling device that is used for the large-scale workpiece porous series, it is characterized in that: comprise L-type sectional shelf-unit (400), be arranged on the screwfeed mechanism (100) on sectional shelf-unit (400), and be loaded on screwfeed mechanism (100) inner revolution radius governor motion (200), cutter rotation speed adjusting gear (300);
Sectional shelf-unit (400): comprise the base plate (401) of horizontal direction, the backboard (402) of vertical direction;
Screwfeed mechanism (100): comprise axial feed housing (117), screw mandrel (108), support tube (101), and the axial slider (103) that is positioned at support tube (101); Slide with sectional shelf-unit (400) base plate upper rail (404) by slide block (118) and be connected in the bottom of axial feed housing (117); Support tube (101) is positioned at the rear portion of backboard (402), is provided with vertically gib block (121) on its inwall, is connected so that slide rail is secondary between the lateral surface of gib block (121) and axial slider (103); Axial feed drives (102) output shaft and is provided with driving gear (104), and the driven gear (105) that is meshed with driving gear (104) is socketed in the input of screw mandrel (108); After screw mandrel (108) ran through the combination bearing (111) that is loaded on axial slider upper bearing (metal) one (106), backboard (402) and transition end cap one (110) from back to front successively, its output inserted transition end cap two (115) endoporus; The axial feed housing (117) that is connected with transition end cap one (110) is connected with revolution housing (116) by the bearing (114/119) of two ends endoporus, and axial feed housing (117) revolution housing (116) small end is provided with an eccentric inner hole;
Revolution radius governor motion (200): comprise that the supports end cap (201) that is connected with the interior hole end surface of revolution housing (116), the revolution radius adjusting that is loaded on supports end cap (201) drive (202), and the pinion of interior engagement (203) and gear wheel (204); The revolution radius is regulated and is driven (202) output shaft connection pinion (203), and gear wheel (204) connects cutter rotation speed adjusting gear (300); Supports end cap (201) also is provided with an eccentric inner hole;
Cutter rotation speed adjusting gear (300): the rotation that comprise rotation housing (302), rotation housing end plug (303), knife bar (305), cutter (307), is arranged in rotation housing (302) drives (301); Rotation housing (302) is installed in the eccentric orfice of revolution housing (116), also is provided with connection bearing four (207) between itself and eccentric orfice inwall, and its input passes bearing three (205), and is socketed with aforementioned gear wheel (204); Rotation drives (301) and is loaded in the eccentric orfice of rotation housing end plug (303), and its output shaft connects knife bar (305); Knife bar (305) front end is equipped with cutter (307), adopts nut (306) to clamp.
2. the automatic helical-milling device for the large-scale workpiece porous series according to claim 1, it is characterized in that: sectional shelf-unit (400) also comprises the stiffener (403) of two right angled triangles, and two right-angle sides of stiffener (403) are fitted and connected respectively base plate (401) and backboard (402).
3. the automatic helical-milling device for the large-scale workpiece porous series according to claim 1 and 2, it is characterized in that: above-mentioned screw mandrel (108) is connected with screw thread pair with backboard (402); Screw mandrel (108) adopts spline joint with transition end cap two (115), and axially also tight with stop nut (112).
4. the automatic helical-milling device for the large-scale workpiece porous series according to claim 1 and 2 is characterized in that: after revolution housing (116) and supports end cap (201) assembling, both eccentric orfices are coaxial; Revolution housing (116) and the offset equal and opposite in direction of both eccentric inner holes of rotation housing end plug (303), and both are partial on the contrary when being positioned at original state.
5. the automatic helical-milling device for the large-scale workpiece porous series according to claim 1 and 2, is characterized in that: rotation driving (301) employing air motor or electric main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280200 CN202963571U (en) | 2012-06-14 | 2012-06-14 | Automatic helical hole-milling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220280200 CN202963571U (en) | 2012-06-14 | 2012-06-14 | Automatic helical hole-milling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202963571U true CN202963571U (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220280200 Withdrawn - After Issue CN202963571U (en) | 2012-06-14 | 2012-06-14 | Automatic helical hole-milling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202963571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604527A (en) * | 2020-04-30 | 2020-09-01 | 沈阳工业大学 | End executing device for spiral hole milling |
| CN113172477A (en) * | 2021-03-25 | 2021-07-27 | 南京晓庄学院 | Online measuring and controlling device and method for eccentricity of robot spiral hole milling cutter |
-
2012
- 2012-06-14 CN CN 201220280200 patent/CN202963571U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111604527A (en) * | 2020-04-30 | 2020-09-01 | 沈阳工业大学 | End executing device for spiral hole milling |
| CN111604527B (en) * | 2020-04-30 | 2022-07-15 | 沈阳工业大学 | End executing device for spiral hole milling |
| CN113172477A (en) * | 2021-03-25 | 2021-07-27 | 南京晓庄学院 | Online measuring and controlling device and method for eccentricity of robot spiral hole milling cutter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20141022 |
|
| RGAV | Abandon patent right to avoid regrant |