CN103264339A - Grinding method for grinding dry screw rotor - Google Patents
Grinding method for grinding dry screw rotor Download PDFInfo
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- CN103264339A CN103264339A CN2013101829775A CN201310182977A CN103264339A CN 103264339 A CN103264339 A CN 103264339A CN 2013101829775 A CN2013101829775 A CN 2013101829775A CN 201310182977 A CN201310182977 A CN 201310182977A CN 103264339 A CN103264339 A CN 103264339A
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Abstract
The invention discloses a grinding method for grinding a dry screw rotor. The screw rotor can rotate around the axis of the screw rotor itself to form rotational motion in the C-axis direction, and a grinding wheel spindle can rotate around the axis of the grinding wheel spindle itself to form the rotational motion in the D-axis direction. The D-axis and the C-axis are first kept parallel, and then the grinding wheel spindle is controlled to swing for an inclined angle in the vertical plane. The grinding wheel spindle is controlled to swing for a cut-in angle in the horizontal plane and moved to approach the screw rotor to enable a grinding wheel on the grinding wheel spindle to grind a spiral groove on the screw rotor. By first controlling the rotation axes of the grinding wheel spindle and the screw rotor to be parallel, then driving the grinding wheel spindle to swing for the inclined angle in the vertical plane, and driving the grinding wheel spindle to swing for the cut-in angle in the horizontal plane, the grinding wheel can extend into a concave face portion in the spiral groove to grind the spiral groove, effects on the end of an outer edge of the spiral groove can not be caused, and machining quality of the spiral groove of the screw rotor is effectively guaranteed. The grinding method belongs to the technical field of grinding machining.
Description
Technical field
The present invention relates to the Grinding Technology field, particularly a kind of method for grinding.
Background technology
Dry screw vacuum pump is a kind of non-contact type dry pump, relies on two screw rotors in the pump to carry gas with the sealed volume that pump housing inner chamber forms, in pump inlet formation vacuum.The parts dry type screw rotor that dry screw vacuum pump is main, spiral fluted processed complex on the dry type screw rotor, difficulty are big and require the machining accuracy height, usually need special cutter to process at special purpose machine tool, for the grinding of screw rotor spiral fluted, particularly the grinding of the concave part on the screw rotor helicla flute is comparatively difficult, emery wheel outer rim end easy and concave part interferes during grinding, has a strong impact on screw rotor spiral fluted crudy.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method for grinding that improves dry type screw rotor Grinding Machining Quality.
For solving the problems of the technologies described above the technical scheme that adopts: a kind of method for grinding of grinding dry type screw rotor, screw rotor is rotarily formed the axial gyration of C around self axis, grinding wheel spindle is rotarily formed the axial gyration of D around self axis, keep D axle and C axle to be parallel to each other earlier, control grinding wheel spindle then and in perpendicular, swing an angle of inclination, control grinding wheel spindle again and in horizontal plane, swing an incision angle, mobile grinding wheel spindle to screw rotor near the helicla flute that makes on the wheel grinding screw rotor on the grinding wheel spindle.
Be further used as the improvement of technical solution of the present invention, the angle of inclination equals the lead angle of screw rotor.
Be further used as the improvement of technical solution of the present invention, vertically be provided with and rotate first turntable that formation B direction of principal axis rotatablely moves around self axis in screw rotor one side, be horizontally arranged with and rotate second turntable that formation A direction of principal axis rotatablely moves around self axis in the first turntable side end face, the B axle is vertical mutually with the C axle, the A axle is vertical mutually with the B axle, grinding wheel spindle is arranged on second turntable, and the D axle is vertical mutually with the A axle.
Be further used as the improvement of technical solution of the present invention, screw rotor is arranged on the Z axle slide seat body, Z axle slide seat body can slide at horizontal plane and form the rectilinear motion of Z-direction, grinding wheel spindle is arranged on the X-axis slide seat body, the X-axis slide seat body can slide at horizontal plane and form the rectilinear motion of X-direction, and X-axis is vertical mutually with the Z axle.
Be further used as the improvement of technical solution of the present invention, screw rotor is arranged on the Z axle slide seat body, Z axle slide seat body can slide at horizontal plane and form the rectilinear motion of Z-direction, first turntable is arranged on the X-axis slide seat body, the X-axis slide seat body can slide at horizontal plane and form the rectilinear motion of X-direction, and X-axis is vertical mutually with the Z axle.
Be further used as the improvement of technical solution of the present invention, C axle and Z axle are parallel to each other.
Beneficial effect: this method for grinding is by controlling the axis of rotation keeping parallelism of grinding wheel spindle and screw rotor earlier, drive grinding wheel spindle again at angle of inclination of perpendicular swing, make emery wheel can stretch in the helicla flute of screw rotor and carry out grinding, drive grinding wheel spindle again in an incision of horizontal plane swing angle, make the end of emery wheel can stretch into into that concave part carries out grinding to it in the helicla flute, and can not produce spiral fluted outer rim end and interfere, guarantee screw rotor spiral fluted crudy effectively.
Description of drawings
The present invention is described further below in conjunction with drawings and Examples;
Wheel grinding spiral fluted side view when Fig. 1 only swings the angle of inclination for embodiment of the invention medium plain emery wheel main shaft;
Wheel grinding spiral fluted vertical view when Fig. 2 only swings the angle of inclination for embodiment of the invention medium plain emery wheel main shaft;
Wheel grinding spiral fluted side view when Fig. 3 is embodiment of the invention medium plain emery wheel spindle swing angle of inclination and incision angle;
Wheel grinding spiral fluted vertical view when Fig. 4 is embodiment of the invention medium plain emery wheel spindle swing angle of inclination and incision angle;
Fig. 5 is the cutaway view of A-A line among Fig. 1;
Fig. 6 is the cutaway view of B-B line among Fig. 3;
Fig. 7 is the structural representation of the grinding machine that adopts in the embodiment of the invention;
Fig. 8 is the vertical view of the grinding machine that adopts in the embodiment of the invention;
Fig. 9 is the front view of the grinding machine that adopts in the embodiment of the invention;
Figure 10 is the side view of the grinding machine that adopts in the embodiment of the invention.
The specific embodiment
Referring to figs. 1 through Figure 10, the method for grinding of a kind of grinding dry type of the present invention screw rotor, screw rotor 50 can be rotarily formed the axial gyration of C around self axis, grinding wheel spindle 13 can be rotarily formed the axial gyration of D around self axis, keep D axle and C axle to be parallel to each other earlier, control grinding wheel spindle 13 then and in perpendicular, swing an angle of inclination, the angle of inclination equals the lead angle of screw rotor 50, control grinding wheel spindle 13 again and in horizontal plane, swing an incision angle, mobile grinding wheel spindle 13 to screw rotor 50 near the helicla flute on the emery wheel 131 grinding screw rotors 50 that make on the grinding wheel spindle 13.
Need carry out grinding to the helicla flute on the screw rotor 50 by this method for grinding, especially under guaranteeing situation about not interfering, the concave part 51 in the helicla flute be carried out grinding.
Referring to Fig. 1 and Fig. 2, Fig. 1 is grinding wheel spindle 13 is observed emery wheel 131 and screw rotor 50 when only swinging an angle of inclination from horizontal direction position relation, Fig. 2 is grinding wheel spindle 13 is observed emery wheel 131 and screw rotor 50 when only swinging an angle of inclination from vertical direction position relation, control grinding wheel spindle 13 is swung an angle of inclination in perpendicular earlier, this angle of inclination equals the lead angle of screw rotor 50, make emery wheel 131 can stretch in the helicla flute of screw rotor 50 and carry out grinding, as can be seen from Figure 1, this moment Fig. 1 medium plain emery wheel 131 axis of rotation and screw rotor 50 the axis of rotation α that has angle, and Fig. 2 is the position relation of observing emery wheel 131 and screw rotor 50 from vertical direction, because grinding wheel spindle 13 only is to swing in vertical plane, so from the look axis of rotation keeping parallelism still of the axis of rotation of emery wheel 131 and screw rotor 50 of vertical direction, shown in Fig. 5 is the only spiral fluted cutaway view of emery wheel 131 grinding screw rotors 50 when the swing angle of inclination of grinding wheel spindle 13, as can be seen from Figure 5, concave part 51 at the helicla flute that is positioned at screw rotor 50, emery wheel 131 is to be difficult to stretch into carry out grinding, and easily and spiral fluted outer rim end 52 interfere, influence the spiral fluted suface processing quality.
Referring to Fig. 3 and Fig. 4, Fig. 3 is the position relation of observing emery wheel 131 and screw rotor 50 from horizontal direction after grinding wheel spindle angle of inclination of 13 swings and the incision angle, Fig. 4 is the position relation of observing emery wheel 131 and screw rotor 50 from vertical direction after grinding wheel spindle angle of inclination of 13 swings and the incision angle, behind angle of inclination of grinding wheel spindle 13 swings, control grinding wheel spindle 13 again in an incision of horizontal plane swing angle, make the end of emery wheel 131 can stretch into into that concave part 51 carries out grinding to it in the helicla flute, because grinding wheel spindle 13 is in an incision of horizontal plane swing angle, so the angle α that becomes between the axis of rotation of the axis of rotation of emery wheel 131 shown in Figure 3 and screw rotor 50 does not change, and Fig. 4 is owing to be the position relation of observing emery wheel 131 and screw rotor 50 from vertical direction, this moment Fig. 4 medium plain emery wheel 131 axis of rotation and screw rotor 50 the axis of rotation β that also has angle, this angle β forms in horizontal plane swing one incision angle because of grinding wheel spindle 13, shown in Fig. 6 is the spiral fluted cutaway view of grinding wheel spindle 13 emery wheel 131 grinding screw rotors 50 after swing angle of inclination and incision angle, because grinding wheel spindle 13 swing one incision angle and then the concave part 51 that makes the end of emery wheel 131 can stretch into smoothly in the helicla flute into carry out grinding, and can not produce spiral fluted outer rim end 52 and interfere, guarantee screw rotor 50 spiral fluted crudies effectively.
As preferred embodiment of the present invention, vertically be provided with and rotate first turntable 11 that formation B direction of principal axis rotatablely moves around self axis in screw rotor 50 1 sides, be horizontally arranged with and rotate second turntable 12 that formation A direction of principal axis rotatablely moves around self axis in first turntable, 11 side end faces, the B axle is vertical mutually with the C axle, the A axle is vertical mutually with the B axle, grinding wheel spindle 13 is arranged on second turntable 12, and the D axle is vertical mutually with the A axle.
As preferred embodiment of the present invention, screw rotor 50 is arranged on the Z axle slide seat body 42, Z axle slide seat body 42 can slide at horizontal plane and form the rectilinear motion of Z-direction, first turntable 11 is arranged on the X-axis slide seat body 41, X-axis slide seat body 41 can slide at horizontal plane and form the rectilinear motion of X-direction, and X-axis is vertical mutually with the Z axle.
As preferred embodiment of the present invention, C axle and Z axle are parallel to each other.
Referring to Fig. 7 to Figure 10, method for grinding is in the present embodiment mainly realized by a grinding machine, grinding machine comprises lathe bed 30, at lathe bed 30 orthogonal X-axis guide rail and Z axis rail are set, X-axis slide seat body 41 is slidingly connected on the X-axis guide rail, Z axle slide seat body 42 is slidingly connected at the Z axis rail, X-axis slide seat body 41 slides along the X-axis guide rail and forms the rectilinear motion of X-direction, Z axle slide seat body 42 slides along the Z axis rail and forms the rectilinear motion of Z-direction, by the slip of control X-axis slide seat body 41 and Z axle slide seat body 42, emery wheel 131 on the grinding wheel spindle 13 be can be moved to carry out grinding on the screw rotor 50.
Can drive grinding wheel spindle 13 by 12 rotations of second turntable and in perpendicular, swing an angle of inclination, rotate by first turntable 11 and can drive grinding wheel spindle 13 in an incision of horizontal plane swing angle.
Z axle slide seat body 42 is provided with work spindle 22 and top 23, screw rotor 50 two ends rely between work spindle 22 and top 23, be rotarily formed the axial gyration of C by work spindle 22 drive screw rotors 50, screw rotor 50 moves with the slip of Z axle slide seat body 42.
By reference to the accompanying drawings embodiments of the present invention have been done detailed description above, but the invention is not restricted to above-mentioned embodiment, in the ken that described technical field those of ordinary skill possesses, can also under the prerequisite that does not break away from aim of the present invention, make various variations.
Claims (7)
1. the method for grinding of a grinding dry type screw rotor, it is characterized in that: screw rotor is rotarily formed the axial gyration of C around self axis, grinding wheel spindle is rotarily formed the axial gyration of D around self axis, keep described D axle and C axle to be parallel to each other earlier, control described grinding wheel spindle then and in perpendicular, swing an angle of inclination, control described grinding wheel spindle again and in horizontal plane, swing an incision angle, mobile described grinding wheel spindle to screw rotor near the helicla flute on the wheel grinding screw rotor that makes on the grinding wheel spindle.
2. the method for grinding of grinding dry type screw rotor according to claim 1, it is characterized in that: described angle of inclination equals the lead angle of screw rotor.
3. the method for grinding of grinding dry type screw rotor according to claim 1 and 2, it is characterized in that: vertically be provided with and rotate first turntable that formation B direction of principal axis rotatablely moves around self axis in described screw rotor one side, be horizontally arranged with and rotate second turntable that formation A direction of principal axis rotatablely moves around self axis in the described first turntable side end face, described B axle is vertical mutually with the C axle, described A axle is vertical mutually with the B axle, described grinding wheel spindle is arranged on second turntable, and described D axle is vertical mutually with the A axle.
4. the method for grinding of grinding dry type screw rotor according to claim 1 and 2, it is characterized in that: described screw rotor is arranged on the Z axle slide seat body, described Z axle slide seat body can slide at horizontal plane and form the rectilinear motion of Z-direction, described grinding wheel spindle is arranged on the X-axis slide seat body, described X-axis slide seat body can slide at horizontal plane and form the rectilinear motion of X-direction, and described X-axis is vertical mutually with the Z axle.
5. the method for grinding of grinding dry type screw rotor according to claim 3, it is characterized in that: described screw rotor is arranged on the Z axle slide seat body, described Z axle slide seat body can slide at horizontal plane and form the rectilinear motion of Z-direction, described first turntable is arranged on the X-axis slide seat body, described X-axis slide seat body can slide at horizontal plane and form the rectilinear motion of X-direction, and described X-axis is vertical mutually with the Z axle.
6. the method for grinding of grinding dry type screw rotor according to claim 5, it is characterized in that: described C axle and Z axle are parallel to each other.
7. the method for grinding of grinding dry type screw rotor according to claim 4, it is characterized in that: described C axle and Z axle are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101829775A CN103264339A (en) | 2013-05-16 | 2013-05-16 | Grinding method for grinding dry screw rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101829775A CN103264339A (en) | 2013-05-16 | 2013-05-16 | Grinding method for grinding dry screw rotor |
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| CN103264339A true CN103264339A (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101829775A Pending CN103264339A (en) | 2013-05-16 | 2013-05-16 | Grinding method for grinding dry screw rotor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904303A (en) * | 2016-06-22 | 2016-08-31 | 蔡蒙蒙 | Numerical control stone arc line forming machine |
| CN107584388A (en) * | 2017-10-24 | 2018-01-16 | 浙江晟禧精密机械科技有限公司 | A kind of steel ball deploys wheel grinding machine |
| CN111002123A (en) * | 2019-12-24 | 2020-04-14 | 温州大学 | Full-automatic grinding equipment of polymer nib |
| CN111906644A (en) * | 2020-08-05 | 2020-11-10 | 合肥陶陶新材料科技有限公司 | Ceramic part grinding method and grinding equipment |
| CN113263457A (en) * | 2021-05-25 | 2021-08-17 | 重庆建设工业(集团)有限责任公司 | Grinding grooving grinding wheel for spiral groove of core rod with circular cutting structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4930265A (en) * | 1984-08-28 | 1990-06-05 | Schaudt Maschinenbau Gmbh | Thread grinding method and machine |
| CN2683295Y (en) * | 2003-11-22 | 2005-03-09 | 蔡宜和 | Thread grinding device for relieving lathe and relief grinding lathe |
| CN2721295Y (en) * | 2004-07-09 | 2005-08-31 | 王隆太 | Digital controlled screw grinding machine |
| US20080280546A1 (en) * | 2007-05-08 | 2008-11-13 | Rainer Mielke | Method and apparatus for grinding the blade tips of a rotor wheel in Blisk design |
| CN202922344U (en) * | 2012-08-29 | 2013-05-08 | 泰兴市晨光高新技术开发有限公司 | Grinding machine for numerical control precise deformed screw and worm |
-
2013
- 2013-05-16 CN CN2013101829775A patent/CN103264339A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4930265A (en) * | 1984-08-28 | 1990-06-05 | Schaudt Maschinenbau Gmbh | Thread grinding method and machine |
| CN2683295Y (en) * | 2003-11-22 | 2005-03-09 | 蔡宜和 | Thread grinding device for relieving lathe and relief grinding lathe |
| CN2721295Y (en) * | 2004-07-09 | 2005-08-31 | 王隆太 | Digital controlled screw grinding machine |
| US20080280546A1 (en) * | 2007-05-08 | 2008-11-13 | Rainer Mielke | Method and apparatus for grinding the blade tips of a rotor wheel in Blisk design |
| CN202922344U (en) * | 2012-08-29 | 2013-05-08 | 泰兴市晨光高新技术开发有限公司 | Grinding machine for numerical control precise deformed screw and worm |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105904303A (en) * | 2016-06-22 | 2016-08-31 | 蔡蒙蒙 | Numerical control stone arc line forming machine |
| CN105904303B (en) * | 2016-06-22 | 2017-12-19 | 蔡蒙蒙 | Numerical control stone arcuate line forming machine |
| CN107584388A (en) * | 2017-10-24 | 2018-01-16 | 浙江晟禧精密机械科技有限公司 | A kind of steel ball deploys wheel grinding machine |
| CN111002123A (en) * | 2019-12-24 | 2020-04-14 | 温州大学 | Full-automatic grinding equipment of polymer nib |
| CN111002123B (en) * | 2019-12-24 | 2021-10-15 | 温州大学新材料与产业技术研究院 | Full-automatic grinding equipment of polymer nib |
| CN111906644A (en) * | 2020-08-05 | 2020-11-10 | 合肥陶陶新材料科技有限公司 | Ceramic part grinding method and grinding equipment |
| CN113263457A (en) * | 2021-05-25 | 2021-08-17 | 重庆建设工业(集团)有限责任公司 | Grinding grooving grinding wheel for spiral groove of core rod with circular cutting structure |
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Application publication date: 20130828 |