CN202726740U - Polar coordinate forming grinding wheel dresser - Google Patents
Polar coordinate forming grinding wheel dresser Download PDFInfo
- Publication number
- CN202726740U CN202726740U CN 201220278037 CN201220278037U CN202726740U CN 202726740 U CN202726740 U CN 202726740U CN 201220278037 CN201220278037 CN 201220278037 CN 201220278037 U CN201220278037 U CN 201220278037U CN 202726740 U CN202726740 U CN 202726740U
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- emery wheel
- grinding wheel
- wheel
- main shaft
- grinding
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Abstract
The utility model relates to a polar coordinate forming grinding wheel dresser, which comprises a linear feed system consisting of a linear shaft servo motor 1), a linear shaft coupler 2) and a ball screw 3), and is characterized by also comprising a support system consisting of a linear guide rail 4) and a dressing base 8), a driving system consisting of a rotary shaft servo motor 14), a rotary shaft coupler 15), a precise double-lead worm 16) and a worm gear 17), a grinding wheel 11), an electric main shaft 13) of the grinding wheel and a rotary shaft base 12) of the grinding wheel, wherein the grinding wheel 11) is assembled on the electric main shaft 13) of the grinding wheel through a grinding wheel chuck, and the electric main shaft 13) of the grinding wheel is fixedly connected with the worm gear 17) through the rotary shaft base 12) of the grinding wheel. The polar coordinate forming grinding wheel dresser disclosed by the utility model is advanced in a dressing mode, and because a diamond dressing wheel with an arc-shaped section has normal vector adaptivity, the dressing requirements on various complex section molded lines of grinding wheels can be satisfied through a simple polar coordinate movement control mode.
Description
Technical field:
The utility model belongs to gear and gear form processing device and technical field, particularly the polar coordinates Forming Wheel Dressing device used of a kind of CNC gear profile grinder.
Background technology
Along with the raising of gear drive equipment to requirements such as speed, precision, reliability and life-spans, hardened face gear is increasingly extensive in the application of machinery industry, but hard flank of tooth fine finishining efficient is low, cost is high, particularly the grinding fine finishining of large gear is more difficult, is one of key factor of limiting gear equipment Development always.Along with the development of CNC gear profile grinder, the hard Gear shape process precision of gear wheel and efficiency progressively are eased.CNC gear profile grinder is trimmed to grinding wheel section shape in the cross section that adapts with gear tooth slot, utilizes without Instant Center Envelope method machining gears, and the grinding wheel shape error flank of tooth of directly rerunning a movie cuts on the shape, is the principal element that causes gear-profile class error.Therefore, the rational dresser of project organization is repaired out the necessary condition that correct grinding wheel section shape is numerical control formation grinding high class gear.
The general diamond pen finishing formed grinding wheel that adopts of tradition plunge grinding processing, the inclination angle that needs during finishing constantly to adjust diamond pen is vowed its method that adapts to refacing, and motion control is complicated, and dressing efficiency is low; On the other hand, diamond pen belongs to single-point contact finishing mode, and the diamond of nib easily produces wearing and tearing, and the out-of-shape after the wearing and tearing, and the error compensation difficulty has a great impact the dressing accuracy of formed grinding wheel.In traditional Forming Wheel Dressing mode, also can use the direct trimming wheel of shaping emery wheel to be shaped, motion is simple, and precision depends on the precision of emery wheel self, but this mode is flexible poor, is difficult to adapt to the gear forming grinding that profile of tooth often changes.
(patent No.: the two emery wheels of the wheel dressing mechanism utilization of 200910218435.2) mentioning are repaired in rectangular coordinate system, are all higher crushing modes of a kind of efficient and precision at Chinese patent " grinding wheel dressing mechanism of gear form grinding machine ".This wheel dressing mechanism is independent of other motions of gear grinding machines, needs two independently numerical control axles, and cost is higher; More outstanding problem is that this finishing structure space size is large, can not directly apply to the crushing of internal tooth molded gear grinding machine.
Summary of the invention
Technical deficiency for CNC gear profile grinder crushing existence, the utility model provides a kind of polar coordinates Forming Wheel Dressing device, the emery wheel pivot angle axle that this polar coordinates Forming Wheel Dressing device is used gear grinding machines realize two kinds numerical control linked, can adapt to the crushing of inside/outside tooth molded gear grinding machine, have simple in structure, dressing accuracy and efficient are high, and functional reliability is high, the characteristics of low cost of manufacture.
For achieving the above object, the utility model is by the following technical solutions:
A kind of polar coordinates Forming Wheel Dressing device, comprise the linear feeding system that is formed by linear axis servomotor 1, linear axis shaft coupling 2 and ball-screw 3, also comprise and adopt line slideway 4 with the supporting system of repairing base 8 compositions, by rotating shaft servomotor 14, rotating shaft shaft coupling 15, the worm screw 16 of accurate two helical pitches and the drive system that worm gear 17 forms; Also comprise emery wheel 11, emery wheel electricity main shaft 13 and emery wheel rotating shaft base 12, emery wheel 11 is assemblied on the emery wheel electricity main shaft 13 by grinding wheel chuck, emery wheel electricity main shaft 13 is fixedly connected with worm gear 17 by emery wheel rotating shaft base 12, has realized that the pivot angle polar coordinates of emery wheel rotatablely move.
Described by the electric main shaft 5 of finishing, the first synchronous pulley 6, Timing Belt 7 and 10 rotations of the second synchronous pulley 9 driving emery wheels.
Described polar coordinates Forming Wheel Dressing device is arranged on the grinding head box body 18.
Emery wheel is revolving body, and its morphology depends on that the axle of emery wheel cuts shape; The dressing process medium plain emery wheel cuts the plane curve of shape and repairs the spatial surface that gets final product the self-assembling formation emery wheel around self axis revolution by grinding wheel spindle.Therefore, trimming wheel motion can be simplified to plane motion, cuts shape by emery wheel pen rectangular coordinate system motion or the polar coordinates sports envelope axle that goes out emery wheel planar, forms the emery wheel spatial surface.
The utility model utilizes the plane motion envelope grinding wheel spindle of digital control system control emery wheel in polar coordinate system to cut the shape curve, realizes form truing.Rectilinear motion is specifically done by straight line numerical control axle control emery wheel by mechanism, rotate around emery wheel pivot angle axle by revolution numerical control axle control emery wheel, utilize the two-axle interlocking control of linear axis and gyroaxis, can make emery wheel in the polar coordinates plane, cut shape and carry out envelope movement by cutting grinding wheel spindle that shape adapts with gear end.Grinding wheel spindle cuts the shape curve and is formed by emery wheel envelope in the polar coordinates plane motion, namely satisfy emery wheel and emery wheel and be total to the normal plane vector at the contact point place, and the normal plane vector is mutually vertical at the relative velocity vector at this some place with both altogether.The utility model adopts axle to cut the emery wheel that shape is circular shape, and the method when utilizing circular arc to contact with wheel face is vowed adaptivity, greatly reduces the complexity of emery wheel movement locus planning.Only grinding wheel spindle to be trimmed need to be cut the shape curve cuts the shape circular arc by the Buddha's warrior attendant roller shaft radius size during finishing carries out equidistantly to emery wheel place direction, the center of circle movement locus that keeps the emery wheel axle to cut the shape circular arc in the sports envelope process carries out interpolation by this equal space line, need not consider the attitude of emery wheel self, so that the envelope movement control algolithm is greatly simplified.
CNC gear profile grinder is provided with emery wheel pivot angle axle for adapting to the helical gear grinding, and the helical angle of emery wheel and workpiece is adapted.The utility model realizes that emery wheel when the rotatablely moving of polar coordinates plane, arranges no longer separately revolution numerical control axle, swings but use the polar coordinates that emery wheel pivot angle axle satisfies emery wheel.The utility model is provided with separately the rectilinear motion numerical control axle in the polar coordinates plane, utilizes servomotor, line slideway and accurate little lead ball lead screw to satisfy the straight-line high-precision requirement of finishing.In the dressing process, utilize electric main shaft drives emery wheel that frequency converter controls to rotate around self axis, guarantee the formation of emery wheel space rotary surface.In addition, emery wheel in dressing process, also need around self axis do with emery wheel in opposite directions or motion in the same way, utilize transducer drive emery wheel electricity main shaft to carry out speed Control and can satisfy in the crushing process emery wheel needs that rotatablely move.
The utility model has following advantage compared with prior art:
Polar coordinates Forming Wheel Dressing device finishing mode of the present utility model is advanced, utilizes the emery wheel of circular cross-section to have method arrow adaptivity, can satisfy the finishing requirement of the various complex section molded line of emery wheel by simple polar coordinates motion control form.
Polar coordinates Forming Wheel Dressing device of the present utility model is by means of the emery wheel pivot angle axle of CNC gear profile grinder, so that burring machine is simple and reasonable for structure, cost is low, and the size that takes up space is little, but and the needs of simultaneous adaptation inside/outside tooth plunge grinding structure.
Polar coordinates Forming Wheel Dressing device of the present utility model utilizes servomotor, precise linear guide and little lead ball lead screw to satisfy polar coordinates rectilinear motion high-precision requirement; Use the gear grinding machines emery wheel pivot angle axle that torque motor direct drives, satisfy the requirement of polar coordinates corner movement high-precision; Realize the high accuracy finishing of emery wheel by two-axle interlocking.
Polar coordinates Forming Wheel Dressing device of the present utility model utilizes transducer drive emery wheel electricity main shaft and emery wheel electricity main shaft, make it in certain scope, realize the level speed governing, satisfy direction of rotation and the speed ratio needs of dressing process medium plain emery wheel and emery wheel, improve dressing efficiency and wheel face finish.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model.
Description of reference numerals:
1 is the linear axis servomotor; 2 is the linear axis shaft coupling; 3 is ball-screw; 4 is line slideway; 5 are the electric main shaft of finishing; 6 is the first synchronous pulley; 7 is Timing Belt; 8 are the finishing base; 9 is the second synchronous pulley; 10 is emery wheel; 11 is emery wheel; 12 is emery wheel rotating shaft base; 13 is emery wheel electricity main shaft; 14 is the rotating shaft servomotor; 15 is the rotating shaft shaft coupling; 16 is worm screw; 17 is worm gear; 18 is grinding head box body.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
A kind of polar coordinates Forming Wheel Dressing device, comprise the linear feeding system that is formed by linear axis servomotor 1, linear axis shaft coupling 2 and ball-screw 3, also comprise and adopt line slideway 4 with the supporting system of repairing base 8 compositions, by rotating shaft servomotor 14, rotating shaft shaft coupling 15, the worm screw 16 of accurate two helical pitches and the drive system that worm gear 17 forms; Also comprise emery wheel 11, emery wheel electricity main shaft 13 and emery wheel rotating shaft base 12, emery wheel 11 is assemblied on the emery wheel electricity main shaft 13 by grinding wheel chuck, emery wheel electricity main shaft 13 is fixedly connected with worm gear 17 by emery wheel rotating shaft base 12, has realized that the pivot angle polar coordinates of emery wheel rotatablely move.
Described by the electric main shaft 5 of finishing, the first synchronous pulley 6, Timing Belt 7 and 10 rotations of the second synchronous pulley 9 driving emery wheels.
Described polar coordinates Forming Wheel Dressing device is arranged on the grinding head box body 18.
Assembling numerical-control direct bobbin Z axis, numerical control rotary axle A axle, emery wheel rotary main shaft SP1 axle, diamond roller main shaft SP2 axle on the grinding head box body 18, Z axis and A axle form the finishing polar coordinate system.
Z axis is realized the emery wheel rectilinear motion, adopts the ball-screw 3 of the precision of linear axis servomotor 1, linear axis shaft coupling 2, little helical pitch to form linear feeding system, adopts two line slideways 4 and finishing base 8 to form supporting system.The A axle is realized the motion of emery wheel pivot angle, by rotating shaft servomotor 14, shaft coupling 15 and accurate double pitch worm 16, drives worm gear 17 rotations; Emery wheel 11 is assemblied on the emery wheel electricity main shaft 13 by grinding wheel chuck, and electric main shaft is connected by emery wheel rotating shaft base 12 and worm gear 17, has realized that the pivot angle polar coordinates of emery wheel rotatablely move.
The SP1 axle is realized the principal rotating motion of emery wheel, directly drives emery wheel 11 rotations by frequency conversion emery wheel electricity main shaft 13.The SP2 axle is realized the principal rotating motion of emery wheel, repairs electric main shaft 5, the first synchronous pulley 6, Timing Belt 7, the second synchronous pulley 9 by frequency conversion, drives emery wheel 10 rotations.
Line slideway 4 on the linear motion axis, ball-screw 3 adopt regularly centralized lubrication of thin oil, and worm gear 16,17 adopts flooding system lubrication; Emery wheel electricity main shaft and emery wheel electricity main shaft adopt water cooling.
Press Fig. 1 the assembling of each parts is complete after, need to guarantee: a) the Diamant roller main-shaft axis is vertical with the emery wheel movement locus; B) the emery wheel s ymmetry center plane is by numerical control rotary axle A axle axis; When c) numerical control rotary axle A axle was in zero-bit, the diamond roller main shaft axis was parallel with the grinding wheel spindle axis;
Operation principle of the present utility model:
Emery wheel and emery wheel are changed in the lathe start, with A axle and Z axis return reference point, set up the finishing polar coordinate system.Utilize conjugate principle to find the solution the equal space line of the grinding wheel section shape that adapts with the form of gear tooth as the movement locus of emery wheel, and this rectangular coordinate system track is transformed in the polar coordinate system, the recycling professional software generates corresponding G code and is input in the digital control system.Start G code, emery wheel and emery wheel direction and rotating speed in accordance with regulations is rotated, and Z axis and A axle are pressed grinding wheel section shape equal space line track and realized two-axle interlocking, finish the finishing of emery wheel.
Through implementing case verification, this arrangement works is reliable, and dressing accuracy is high, satisfies the needs of numerical control formation inside/outside gear grinding machines crushing.
Claims (3)
1. polar coordinates Forming Wheel Dressing device, comprise the linear feeding system that is formed by linear axis servomotor (1), linear axis shaft coupling (2) and ball-screw (3), it is characterized in that also comprising the supporting system that adopts line slideway (4) and finishing base (8) to form, by rotating shaft servomotor (14), rotating shaft shaft coupling (15), the worm screw (16) of accurate pair helical pitches and the drive system that worm gear (17) forms; Also comprise emery wheel (11), emery wheel electricity main shaft (13) and emery wheel rotating shaft base (12), emery wheel (11) is assemblied on the emery wheel electricity main shaft (13) by grinding wheel chuck, and emery wheel electricity main shaft (13) is fixedly connected with worm gear (17) by emery wheel rotating shaft base (12).
2. polar coordinates Forming Wheel Dressing device according to claim 1 is characterized in that described by finishing electric main shaft (5), the first synchronous pulley (6), Timing Belt (7) and the second synchronous pulley (9) driving emery wheel (10) rotation.
3. polar coordinates Forming Wheel Dressing device according to claim 1 is characterized in that described polar coordinates Forming Wheel Dressing device is arranged on the grinding head box body (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278037 CN202726740U (en) | 2012-06-13 | 2012-06-13 | Polar coordinate forming grinding wheel dresser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220278037 CN202726740U (en) | 2012-06-13 | 2012-06-13 | Polar coordinate forming grinding wheel dresser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202726740U true CN202726740U (en) | 2013-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220278037 Expired - Fee Related CN202726740U (en) | 2012-06-13 | 2012-06-13 | Polar coordinate forming grinding wheel dresser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202726740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436775A (en) * | 2018-02-02 | 2018-08-24 | 东华大学 | A kind of main shaft translation wheel dresser |
| CN112497071A (en) * | 2020-12-17 | 2021-03-16 | 无锡七机机床有限公司 | Numerical control grinding wheel dressing device |
-
2012
- 2012-06-13 CN CN 201220278037 patent/CN202726740U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108436775A (en) * | 2018-02-02 | 2018-08-24 | 东华大学 | A kind of main shaft translation wheel dresser |
| CN108436775B (en) * | 2018-02-02 | 2023-10-20 | 东华大学 | Main shaft translation grinding wheel dressing device |
| CN112497071A (en) * | 2020-12-17 | 2021-03-16 | 无锡七机机床有限公司 | Numerical control grinding wheel dressing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20190613 |