CN202861548U - Numerical control forming gear milling machine for super-large gear rings - Google Patents
Numerical control forming gear milling machine for super-large gear rings Download PDFInfo
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- CN202861548U CN202861548U CN 201220278902 CN201220278902U CN202861548U CN 202861548 U CN202861548 U CN 202861548U CN 201220278902 CN201220278902 CN 201220278902 CN 201220278902 U CN201220278902 U CN 201220278902U CN 202861548 U CN202861548 U CN 202861548U
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Abstract
A numerical control forming gear milling machine for super-large gear rings is characterized by comprising a numerical control rotary table (1), a radial feed sliding seat, an upright (5) and a vertical planker (6), wherein the radial feed sliding seat comprises a radial feed sliding seat base (2) and a radial feed system (3); the radial feed sliding seat base (2) is integrally fixed with a T-shaped groove on the numerical control rotary table (1) through a T-shaped bolt; and a guide rail at the lower part of the upright (5) is matched with that on the radial feed sliding seat base (2) to form a radially moving slide guide pair. The provided gear milling machine has the characteristics of novel and simple structure, scientific and reasonable overall design, low machine tool production cost and high processing efficiency; and at the same time, the functions to process internal straight teeth, external straight teeth, internal helical teeth and external helical teeth are taken.
Description
Technical field
The utility model relates to a kind of gear mechanism process equipment, particularly a kind of super large-scale gear ring numerical control shaping tooth milling machine of large specification inside/outside gear ring numerical control shaping processing.
Background technology
In the mine, the super large-scale external toothing (diameter is greater than more than 5000) that widely uses of the industries such as metallurgy, chemical industry utilizes large-scale gear hobbing machine generate gear hobbing processing usually.During gear-hobbing machine work, hob head is made axial feed motion along column guide rail after by angle of workpiece helical angle adjustment, column moves as radial feed along bed ways and moves, workpiece is contained on the workbench and does the rotary index motion by the index worm gear pair driving, by the motion combination mechanism hobboing cutter main motion, axial feed motion and turntable dividing movement is synthesized by Meshing Process of Spur Gear and finishes Gear Processing.The existing outer chain of gear-hobbing machine drive system, interior chain have again the motion combination mechanism, and motion is extremely complicated, and the lathe cost is high.Tradition major diameter gear ring hobbing process is installed in workpiece on the rotary table usually, for satisfying cutting rigidity and workpiece needs is installed, and requires the workbench diameter to adapt with diameter of work, but major diameter, high accuracy, heavily loaded turntable manufacture difficulty are very big.In addition, high-speed steel tool is adopted in traditional gear hobbing usually, and cutting linear velocity and tool life are all lower, also needs a large amount of metalworking coolants, the low and not environmental protection of the overall stock-removing efficiency of lathe.
For the super large-scale ring gear that uses in the above-mentioned industry, because domestic large specification gear shapping machine resource more than 3 meters is extremely rare, so that internal tooth processing is extremely difficult, even may not process, limited thus the use of large specification ring gear, the superiority of interior engaged transmission also can not get effectively bringing into play.
Therefore need a kind of new tooth Profile Machining mode and the processing of processing equipment solution super large-scale gear ring, can increase substantially the external toothing working (machining) efficiency, the bottleneck of ring gear processing difficulties can be solved again, manufacture difficulty and the cost of manufacture of Big sized gear lathe can be reduced simultaneously.
Summary of the invention:
For the technical problem that occurs in the super large-scale gear ring tooth process processed, the utility model provides a kind of novel structure numerical control gear milling machine, have characteristics simple in structure, that overall design is scientific and reasonable, the lathe manufacturing cost is lower, working (machining) efficiency is high, possess simultaneously the super large-scale gear ring numerical control shaping tooth milling machine of the function of straight-tooth, outer straight-tooth, interior helical teeth and outer helical teeth in the processing.
The utility model utilizes gear forming milling method to process by being shaped without the Instant Center Envelope motion realization flank of tooth between forming disk milling cutter and the workpiece, the motion assignment form of lathe comprises: the rotation of forming disk milling cutter realizes the lathe main motion, cutter is realized the widths over teeth cutting along the workpiece axial feed motion, cutter is realized the full-depth tooth deep-cutting along the workpiece radial motion, helical gear helical angle is realized at the cutter inclination angle, and the numerical control table, NC table revolution realizes the one division milling of gear.
The concrete technical scheme of super large-scale gear ring numerical control shaping tooth milling machine of the present utility model is:
A kind of super large-scale gear ring numerical control shaping tooth milling machine, comprise NC rotary table 1, the radial feed slide, column 5 and vertical saddle 6, the radial feed slide comprises radial feed slide base 2 and radial feed system 3, radial feed slide base 2 is fixed into an integral body by the T-slot on tommyhead bolt and the NC rotary table 1, the guide rail of column 5 bottoms matches with guide rail on the radial feed slide base 2, and to form the rail plate that moves radially secondary, and the screw pair that passes through in the radial feed system 3 is connected with the rear portion of column 5, pass through AC servo motor, ball-screw drives column 5 and realizes the radial feed motion, internal tooth main spindle box 9 or external tooth main spindle box 15 have been assembled to by rotating dog on the vertical saddle 6, worm sector 13 and endless screw support assembly 14 are installed respectively in the below of internal tooth main spindle box 9 and vertical saddle 6, and endless screw support assembly 14 comprises servomotor, planetary reduction gear and worm screw.
The described vertical saddle 6 that internal tooth main spindle box 9 or external tooth main spindle box 15 are housed is assemblied on the rail plate of column 5 front sides, and connects vertical feed system 7 by screw pair.
Be equipped with forming disk milling cutter 10 on the knife bar mandrel of described internal tooth main spindle box 9 or external tooth main spindle box 15, stud with carbide chip on the forming disk milling cutter 10, the arranged around of NC rotary table 1 has workpiece support 4, and workpiece support 4 is fixed on the T-slot on Installing machine tool basis by iron gasket for machine tool and foundation bolt.
On the described workpiece support 4 workpiece 11 is installed.Change internal tooth main spindle box 9 into external tooth main spindle box 15, all the other organization plans are constant, can realize the form milling processing of external toothing.
Main motion: machine adopted forming disk milling tool gear, the variable-frequency motor of forming disk milling cutter by the main spindle box top that is installed on the main axis arbor drives the multi-stage speed-reducing gear drive, drives cutter and realizes the rotation main motion.
The one division motion: the heavy type that two worm gears drive, high accuracy, zero sideshake numerical control rotating platform are installed on the ground, drive workbench by the two worm gears of driven by servomotor and accurately rotate the one division motion that realizes cutter, and weight and the chip-load of bearing the machine tool movement parts.
The radial feed motion: the radial feed slide is assemblied on the numerical control rotating platform, the radial feed system that utilizes servomotor, decelerator and ball guide screw nat to form promotes to be assemblied in the column on the radial feed slide, realize that cutter moves along the radial feed of workpiece, satisfies the requirement of full-depth tooth deep-cutting.
Axial feed motion: the column front side is provided with rail plate, the same radial feed system of vertical feed system architecture by the column top, promotion is installed in vertical saddle and the main spindle box on the rail plate of column front side, realizes that cutter along the axial feed motion of workpiece, satisfies the requirement of widths over teeth cutting.
The helical angle motion: the main spindle box that the forming disk milling cutter is installed is assemblied on the vertical saddle, below main spindle box, be provided with the worm sector pair, worm gear and main spindle box are bolted, worm screw is connected with planker by endless screw support, when servomotor drives the worm gear rotation by planetary reduction gear, realize the inclination angle rotation with the main spindle box that worm gear is connected, satisfy the helical angle motion of milling helical teeth.
Gear ring is installed on the workpiece support that is connected with ground, and a plurality of workpiece support are arranged in by the diameter of work size around the numerical control rotating platform, and the distribution diameter of regulating supporting seat can satisfy the gear ring processing of different-diameter.In order to overcome resistance to cutting, gear ring is fixed on the workpiece support by pressing plate, isometry block, tommyhead bolt assembly.
For satisfying the needs of inside/outside tooth cutting, main spindle box is divided into two kinds of internal tooth milling main spindle box and external tooth mill teeth main spindle boxes.Can use the direct milling internal tooth of internal tooth main spindle box during the milling internal tooth; During the milling external tooth, need to be replaced by eave tile formula external tooth main spindle box and on gear ring, carry out the external tooth milling.
The utlity model has following outstanding advantage:
Super large-scale gear ring numerical control shaping tooth milling machine of the present utility model adopts the forming disk milling cutter of inserted-blade type carbide chip, and cutting linear velocity improves 4-5 doubly than traditional high-speed steel tool; Employing is without the Instant Center Envelope method, and each axle motion is directly driven by the numerical control axle, and driving-chain is short, without generating motion, and the profile of tooth direct forming; Super large-scale gear ring numerical control shaping tooth milling machine of the present utility model makes tooth efficient processed improve more than 6 times than traditional handicraft.
Utilize the internal tooth milling main spindle box, but the processing of simple realization super large-scale ring gear has solved the difficulty that the super large-scale ring gear can't be processed in the traditional handicraft.
Adopt the secondary drive shaft case of worm sector to realize the inclination angle motion of forming disk milling cutter, realize the interlock of axial feed motion and calibration gyration by electronic gear function, both satisfy the helical gear processing of external tooth, also solved especially the problem of super large-scale internal tooth helical gear processing difficulties.
Utilize the numerical control rotating platform of small diameter can satisfy the high-efficient cutting of super large-scale gear ring, the complete machine weight of lathe only has about 1/2nd of traditional large-scale gear hobbing machine, gear shapping machine, reduce the lathe manufacture difficulty, saved the lathe manufacturing cost, reduced the lathe floor space.
The gear ring weight of super large-scale is usually much larger than weight sums such as the moving-member column of lathe, planker, main spindle boxes, adopt the fixing mode of workpiece can reduce the driving moment of numerical control rotating platform, reduce the strain of drive system, thereby effectively improve the indexing accuracy of turntable, obtain better processing effect.
Description of drawings:
Fig. 1 is the front view of the utility model milling internal tooth.
Fig. 2 is the top view of the utility model milling internal tooth.
Fig. 3 is the side view of main spindle box assembly of the present utility model, worm sector pair and column.
Fig. 4 is the front view of the utility model milling external tooth.
Among the figure: 1 is NC rotary table, and 2 is radial feed slide base, and 3 is radial feed system, 4 is workpiece support, and 5 is column, and 6 is vertical saddle, 7 are the vertical feed system, and 8 is spindle motor, and 9 is the internal tooth main spindle box, 10 is the forming disk milling cutter, 11 is workpiece, and 12 is Anchor plate kit, and 13 is worm sector, 14 is the endless screw support assembly, and 15 is the external tooth main spindle box.
The specific embodiment:
Introducing a kind of embodiment below in conjunction with accompanying drawing is described further the utility model:
A kind of super large-scale gear ring numerical control shaping tooth milling machine, comprise NC rotary table 1, radial feed slide, column 5 and vertical saddle 6, NC rotary table 1 is fixed on the Installing machine tool basis by iron gasket for machine tool and foundation bolt, realize the action of monodentate calibration, first table surface is adjusted level during assembling.The radial feed slide comprises radial feed slide base 2 and radial feed system 3, radial feed slide base 2 is fixed into an integral body by the T-slot on tommyhead bolt and the NC rotary table 1, the guide rail of column 5 bottoms matches with guide rail on the radial feed slide base 2, and to form the rail plate that moves radially secondary, and the screw pair that passes through in the radial feed system 3 is connected with the rear portion of column 5, drive column 5 by AC servo motor, ball-screw and realize the radial feed motion, satisfy the dark cutting requirement of full-depth tooth.Internal tooth main spindle box 9 or external tooth main spindle box 15 have been assembled to by rotating dog on the vertical saddle 6, worm sector 13 and endless screw support assembly 14 are installed respectively in the below of internal tooth main spindle box 9 and vertical saddle 6, and endless screw support assembly 14 comprises servomotor, planetary reduction gear and worm screw.Deng the transmission original paper, the rotation of driven by servomotor worm screw can drive internal tooth main spindle box 9 and realize the helical angle motion.
The vertical saddle 6 that internal tooth main spindle box 9 or external tooth main spindle box 15 are housed is assemblied on the rail plate of column 5 front sides, and connects vertical feed system 7 by screw pair.The servomotor rotation of vertical feed system 7, the internal tooth main spindle box 9 realization axial feed motions that can drive vertical saddle 6 and be connected mutually with it.
Be equipped with forming disk milling cutter 10 on the knife bar mandrel of internal tooth main spindle box 9 or external tooth main spindle box 15, stud with carbide chip on the forming disk milling cutter 10, directly change behind the blade abrasion, need not to reface.The arranged around of NC rotary table 1 has workpiece support 4, and workpiece support 4 is fixed on the T-slot on Installing machine tool basis by iron gasket for machine tool and foundation bolt.The distribution diameter of regulating workpiece support 4 can satisfy the gear ring processing of different-diameter scope.
Workpiece 11 is installed on the workpiece support 4.After utilizing dial gauge that the workpiece center of circle and the centre of gyration centering of NC rotary table 1 is concentric, clamp by pressing plate 12.
In Fig. 4, change internal tooth main spindle box 9 into external tooth main spindle box 15, all the other organization plans are constant, can realize the form milling processing of external toothing.
Operation principle of the present utility model is:
Super large-scale gear ring numerical control shaping tooth milling machine of the present utility model adopts SP axle, Z axis, X-axis, A axle, 5 working shaft directions of C axle.
The lathe start, column 5 is moved to the reference point of radial feed slide low order end, vertical saddle and main spindle box move to column reference point topmost, finish simultaneously the Z-operation that returns of NC rotary table and main spindle box helical angle rotating shaft, and all numerical control axles are set up lathe coordinate system after returning zero.
Workpiece is winched on the workpiece support 4, dial gauge is inhaled on internal tooth main spindle box 9, the rotation NC rotary table, centering workpiece 11 makes workpiece 11 centers of circle overlap with the centre of gyration of NC rotary table 1, uses the pressing plate clamping work pieces.
Unclamp the hold-down screw between internal tooth main spindle box 9 and the planker, utilize A axle servo motor shaft to drive the worm sector pair and make main spindle box rotate helical angle and the hand of spiral to the workpiece requirement, tighten the screw between main spindle box and the planker, fixedly the internal tooth main spindle box 9.
At the relevant parameter (such as the number of teeth, modulus, the facewidth etc.) of machine tool numerical control system interface input workpiece, generate the G code of part processing, make lathe enter automatic cooked mode, and start procedure.
Start spindle motor 8,10 rotations of forming disk milling cutter; Column 5 moves radially to initial manufacture position radially along workpiece 11, and vertical saddle is along workpiece spindle to moving to axial initial manufacture position; Spiral angle and the hand of spiral that vertical feed system and NC rotary table are pressed the workpiece regulation realize the spiral moving interpolation, finish the cutting feed motion of widths over teeth direction, process a teeth groove.
Radially withdrawing is to home along workpiece 11 for column 5, and vertical saddle 6 edges are along workpiece spindle to rising to axial initial manufacture position; NC rotary table is realized the one division motion of the next tooth of milling, and column and workpiece move radially to initial manufacture position radially simultaneously.Repeat the process of previous step, realize the Milling Process of second teeth groove.
Repeat said process, until complete gear ring of milling so always.
Through experimental verification, the present embodiment compact conformation, complete machine are lightweight, dynamically the cutting rigidity is high, spiral angle is easy to adjust, each numerical control axle motion steadily, satisfy interior straight-tooth, outer straight-tooth, interior helical teeth and the outer angular gear finish-milling processing request of 8 class precisions fully, working (machining) efficiency is rolled for tradition and is inserted more than 6 times of efficient.
Claims (4)
1. super large-scale gear ring numerical control shaping tooth milling machine, it is characterized in that comprising NC rotary table (1), the radial feed slide, column (5) and vertical saddle (6), the radial feed slide comprises radial feed slide base (2) and radial feed system (3), radial feed slide base (2) is fixed into an integral body by the T-slot on tommyhead bolt and the NC rotary table (1), the guide rail of column (5) bottom matches with guide rail on the radial feed slide base (2), and to form the rail plate that moves radially secondary, and the screw pair that passes through in the radial feed system (3) is connected with the rear portion of column (5), pass through AC servo motor, ball-screw drives column (5) and realizes the radial feed motion, vertical saddle (6) is upper to be assembled to internal tooth main spindle box (9) or external tooth main spindle box (15) by rotating dog, worm sector (13) and endless screw support assembly (14) are installed respectively in the below of internal tooth main spindle box (9) and vertical saddle (6), and endless screw support assembly (14) comprises servomotor, planetary reduction gear and worm screw.
2. super large-scale gear ring numerical control shaping tooth milling machine according to claim 1, it is characterized in that the described vertical saddle (6) that internal tooth main spindle box (9) or external tooth main spindle box (15) are housed is assemblied on the rail plate of column (5) front side, and connect vertical feed system (7) by screw pair.
3. super large-scale gear ring numerical control shaping tooth milling machine according to claim 1, it is characterized in that being equipped with forming disk milling cutter (10) on the knife bar mandrel of described internal tooth main spindle box (9) or external tooth main spindle box (15), the forming disk milling cutter studs with carbide chip on (10), the arranged around of NC rotary table (1) has workpiece support (4), and workpiece support (4) is fixed on the T-slot on Installing machine tool basis by iron gasket for machine tool and foundation bolt.
4. super large-scale gear ring numerical control shaping tooth milling machine according to claim 3 is characterized in that being equipped with on the described workpiece support (4) workpiece (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278902 CN202861548U (en) | 2012-06-14 | 2012-06-14 | Numerical control forming gear milling machine for super-large gear rings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278902 CN202861548U (en) | 2012-06-14 | 2012-06-14 | Numerical control forming gear milling machine for super-large gear rings |
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| Publication Number | Publication Date |
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| CN202861548U true CN202861548U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220278902 Expired - Lifetime CN202861548U (en) | 2012-06-14 | 2012-06-14 | Numerical control forming gear milling machine for super-large gear rings |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259581A (en) * | 2014-08-28 | 2015-01-07 | 鞍钢重型机械有限责任公司 | Plain-surface modifying machining Method for tooth surfaces of worm gears |
| CN105499712A (en) * | 2016-01-08 | 2016-04-20 | 南京工大数控科技有限公司 | Method for machining cylindrical gear with ultra-large modulus and small tooth number |
| CN108480794A (en) * | 2018-03-22 | 2018-09-04 | 重庆熊氏运升汽车零部件有限公司 | A kind of tooth socket grinding device |
| CN111185639A (en) * | 2020-03-27 | 2020-05-22 | 洛阳新强联回转支承股份有限公司 | Machining method for gear milling of gear ring of super-huge slewing bearing |
| CN115488443A (en) * | 2022-11-16 | 2022-12-20 | 拜锐孚(常州)精密机械有限公司 | Tooth-shaped positioning and milling device for production of planetary gear of speed reducer |
| CN116393767A (en) * | 2023-03-31 | 2023-07-07 | 南京工大数控科技有限公司 | Large-specification numerical control forming gear grinding machine |
-
2012
- 2012-06-14 CN CN 201220278902 patent/CN202861548U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259581A (en) * | 2014-08-28 | 2015-01-07 | 鞍钢重型机械有限责任公司 | Plain-surface modifying machining Method for tooth surfaces of worm gears |
| CN104259581B (en) * | 2014-08-28 | 2016-08-31 | 鞍钢重型机械有限责任公司 | Type processing method is repaiied in facing directly of a kind of worm gear flank of tooth |
| CN105499712A (en) * | 2016-01-08 | 2016-04-20 | 南京工大数控科技有限公司 | Method for machining cylindrical gear with ultra-large modulus and small tooth number |
| CN108480794A (en) * | 2018-03-22 | 2018-09-04 | 重庆熊氏运升汽车零部件有限公司 | A kind of tooth socket grinding device |
| CN108480794B (en) * | 2018-03-22 | 2019-09-03 | 重庆熊氏运升汽车零部件有限公司 | A kind of tooth socket grinding device |
| CN111185639A (en) * | 2020-03-27 | 2020-05-22 | 洛阳新强联回转支承股份有限公司 | Machining method for gear milling of gear ring of super-huge slewing bearing |
| CN115488443A (en) * | 2022-11-16 | 2022-12-20 | 拜锐孚(常州)精密机械有限公司 | Tooth-shaped positioning and milling device for production of planetary gear of speed reducer |
| CN116393767A (en) * | 2023-03-31 | 2023-07-07 | 南京工大数控科技有限公司 | Large-specification numerical control forming gear grinding machine |
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Granted publication date: 20130410 |