CN105171143A - Static-pressure supporting structure for indexing worm of hobbing machine - Google Patents
Static-pressure supporting structure for indexing worm of hobbing machine Download PDFInfo
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- CN105171143A CN105171143A CN201510728592.3A CN201510728592A CN105171143A CN 105171143 A CN105171143 A CN 105171143A CN 201510728592 A CN201510728592 A CN 201510728592A CN 105171143 A CN105171143 A CN 105171143A
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- indexing worm
- injection moulding
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- worm
- indexing
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Abstract
The invention discloses a static-pressure supporting structure for an indexing worm of a hobbing machine. One end of the indexing worm is connected with the output shaft of a servo motor. One end, which is next to the servo motor, of the indexing worm is supported on a worktable housing by means of a first injection molding static pressure bearing. One end, which is far from the servo motor, of the indexing worm is supported on the worktable housing by means of a second injection molding static pressure bearing. The inner sleeves of the first injection molding static pressure bearing and the second injection molding static pressure bearing are injection molding sleeves. The worktable housing is provided with two oil inlet sets at positions which correspond with the injection molding static pressure bearings. The two oil inlet sets are arranged in the circumferential direction of the indexing worm. Each oil inlet set is composed of two oil inlets which are arranged in the axial direction of the indexing worm. According to the static-pressure supporting structure, two ends of the indexing worm are supported on the worktable housing through the injection molding static pressure bearings. The injection molding static pressure bearings have high supporting capability, and therefore damage of the injection molding static pressure bearings can be prevented, thereby preventing eccentricity of the indexing worm, ensuring high indexing precision between the indexing worm and an indexing worm gear, and furthermore ensuring high precision of the worktable.
Description
Technical field
The invention belongs to gear-hobbing machine field, particularly relate to a kind of gear hobbing machine indexing worm static pressure supporting construction.
Background technology
Indexing worm and dividing worm wheel are the vitals of gear hobbing machine worktable, indexing worm two ends wherein by needle bearing and end face bearings on housing.The defect of existing structure is: because the load of indexing worm is larger, so just easily cause needle bearing and end face bearing damage, indexing worm will be made eccentric after needle bearing and end face bearing damage, thus affect the accuracy of mesh of indexing worm and dividing worm wheel, thus affect the precision of indexing accuracy and workbench.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of gear hobbing machine indexing worm static pressure supporting construction, for ensureing the indexing accuracy of indexing worm and dividing worm wheel.
Technical scheme of the present invention is as follows: a kind of gear hobbing machine indexing worm static pressure supporting construction, comprise indexing worm (1) and workbench housing (4), wherein indexing worm (1) often engages with dividing worm wheel (2), one end of this indexing worm is coaxially connected with servomotor (3) output shaft, and servomotor (3) is arranged on described workbench housing (4), it is characterized in that: described indexing worm (1) is supported on workbench housing (4) near one end of servomotor (3) by the first injection moulding hydrostatic bearing (5), this indexing worm is supported on workbench housing (4) away from one end of servomotor (3) by the second injection moulding hydrostatic bearing (6), and the second injection moulding hydrostatic bearing is clamped between two end face thrust bearings (7), and the termination point casing of indexing worm (1) is equipped with a locking locking nut (8) for face thrust bearing (7),
The inner sleeve of described first and second injection moulding hydrostatic bearing (5,6) is injection moulding cover, upper corresponding each injection moulding hydrostatic bearing place of described workbench housing (4) is provided with two oil-in groups, and these two oil-in groups are arranged along the circumference of described indexing worm (1); Each described oil-in group is made up of the oil-in (4a) that two are axially arranged along indexing worm (1), this oil-in is opened on described workbench housing (4), the outer end of each oil-in is connected to a fuel inlet fitting (9), and the inner of each oil-in (4a) communicates with the annular oil groove put outside described first and second injection moulding hydrostatic bearing (5,6).
In technique scheme, the two ends of indexing worm (1) are all supported on workbench housing (4) by injection moulding hydrostatic bearing, and injection moulding hydrostatic bearing has good enabling capabilities, injection moulding hydrostatic bearing so just can be prevented damaged, thus prevent indexing worm (1) eccentric, ensure the indexing accuracy of indexing worm and dividing worm wheel, and then ensure the precision of workbench, and the present invention just overcomes the defect of traditional structure well by little change.
As preferably, four oil-ins (4a) corresponding to each described injection moulding hydrostatic bearing are positioned on four summits of same parallelogram, so just very over the ground to injection pressure oil in injection moulding hydrostatic bearing, thus normal use and the service life of injection moulding hydrostatic bearing can be ensured.
For the ease of manufacturing, described first and second injection moulding hydrostatic bearing (5,6) is all arranged on workbench housing (4) by screw.
Beneficial effect: in the present invention, the two ends of indexing worm are all supported on workbench housing by injection moulding hydrostatic bearing, and injection moulding hydrostatic bearing has good enabling capabilities, injection moulding hydrostatic bearing so just can be prevented damaged, thus prevent indexing worm eccentric, ensure the indexing accuracy of indexing worm and dividing worm wheel, and then ensure the precision of workbench, and the present invention just overcomes the defect of traditional structure well by little change.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that two oil-in groups that in Fig. 1, each injection moulding hydrostatic bearing is corresponding arrange schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, 2, a kind of gear hobbing machine indexing worm static pressure supporting construction, comprise indexing worm 1 and workbench housing 4, wherein indexing worm 1 often engages with dividing worm wheel 2, one end of this indexing worm 1 is coaxially connected with servomotor 3 output shaft, and servomotor 3 is arranged on workbench housing 4.Indexing worm 1 is supported on workbench housing 4 near one end of servomotor 3 by the first injection moulding hydrostatic bearing 5, and this indexing worm 1 is supported on workbench housing 4 by the second injection moulding hydrostatic bearing 6 away from one end of servomotor 3.First and second injection moulding hydrostatic bearing 5,6 is all arranged on workbench housing 4 by screw.Second injection moulding hydrostatic bearing is clamped between two end face thrust bearings 7, and the termination point casing of indexing worm 1 is equipped with a locking locking nut 8 for face thrust bearing 7.
The inner sleeve of the first injection moulding hydrostatic bearing 5 and the second injection moulding hydrostatic bearing 6 is injection moulding cover, and on workbench housing 4, corresponding each injection moulding hydrostatic bearing place is provided with two oil-in groups, and these two oil-in groups are arranged along the circumference of indexing worm 1.Each oil-in group is made up of the oil-in 4a that two are axially arranged along indexing worm 1, this oil-in is opened on workbench housing 4, the outer end of each oil-in is connected to a fuel inlet fitting 9, and the inner of each oil-in 4a communicates with the annular oil groove put outside the first injection moulding hydrostatic bearing 5 and the second injection moulding hydrostatic bearing 6.Four oil-in 4a corresponding to each injection moulding hydrostatic bearing are positioned on four summits of same parallelogram.
During use, pressure oil enters in oil-in 4a by fuel inlet fitting 9, and entered by the annular oil groove put outside injection moulding hydrostatic bearing in the inner sleeve endoporus of corresponding injection moulding hydrostatic bearing, thus oil film is formed between the endoporus and indexing worm 1 of inner sleeve, so just can rotational support indexing worm 1.
The foregoing is only preferred embodiment of the present invention, is not restriction with the present invention, and all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a gear hobbing machine indexing worm static pressure supporting construction, comprise indexing worm (1) and workbench housing (4), wherein indexing worm (1) often engages with dividing worm wheel (2), one end of this indexing worm is coaxially connected with servomotor (3) output shaft, and servomotor (3) is arranged on described workbench housing (4), it is characterized in that: described indexing worm (1) is supported on workbench housing (4) near one end of servomotor (3) by the first injection moulding hydrostatic bearing (5), this indexing worm is supported on workbench housing (4) away from one end of servomotor (3) by the second injection moulding hydrostatic bearing (6), and the second injection moulding hydrostatic bearing is clamped between two end face thrust bearings (7), and the termination point casing of indexing worm (1) is equipped with a locking locking nut (8) for face thrust bearing (7),
The inner sleeve of described first and second injection moulding hydrostatic bearing (5,6) is injection moulding cover, upper corresponding each injection moulding hydrostatic bearing place of described workbench housing (4) is provided with two oil-in groups, and these two oil-in groups are arranged along the circumference of described indexing worm (1); Each described oil-in group is made up of the oil-in (4a) that two are axially arranged along indexing worm (1), this oil-in is opened on described workbench housing (4), the outer end of each oil-in is connected to a fuel inlet fitting (9), and the inner of each oil-in (4a) communicates with the annular oil groove put outside described first and second injection moulding hydrostatic bearing (5,6).
2. gear hobbing machine indexing worm static pressure supporting construction according to claim 1, is characterized in that: four oil-ins (4a) corresponding to each described injection moulding hydrostatic bearing are positioned on four summits of same parallelogram.
3. gear hobbing machine indexing worm static pressure supporting construction according to claim 1, is characterized in that: described first and second injection moulding hydrostatic bearing (5,6) is all arranged on workbench housing (4) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728592.3A CN105171143A (en) | 2015-10-31 | 2015-10-31 | Static-pressure supporting structure for indexing worm of hobbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510728592.3A CN105171143A (en) | 2015-10-31 | 2015-10-31 | Static-pressure supporting structure for indexing worm of hobbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105171143A true CN105171143A (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510728592.3A Pending CN105171143A (en) | 2015-10-31 | 2015-10-31 | Static-pressure supporting structure for indexing worm of hobbing machine |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810849Y (en) * | 2005-07-01 | 2006-08-30 | 陈立新 | Installation structure of indexing worm screw of hobber work bench |
| CN201361751Y (en) * | 2009-03-20 | 2009-12-16 | 南京山能机电工程有限公司 | Two-section combined worm index actuating device of gear grinding machine |
| CN202684234U (en) * | 2012-07-24 | 2013-01-23 | 天津第一机床总厂 | Rotary working table for numerically controlled tooth-punching machine of large cylindrical gear |
| CN202963671U (en) * | 2012-12-28 | 2013-06-05 | 重庆机床(集团)有限责任公司 | Rotational motion clearance eliminating mechanism for working table of gear hobbing machine |
| CN203863155U (en) * | 2014-06-13 | 2014-10-08 | 重庆机床(集团)有限责任公司 | Indexing worm supporting structure of gear bobbing machine |
| CN205200717U (en) * | 2015-10-31 | 2016-05-04 | 重庆机床(集团)有限责任公司 | Gear -hobbing machine indexing worm static pressure bearing structure |
-
2015
- 2015-10-31 CN CN201510728592.3A patent/CN105171143A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2810849Y (en) * | 2005-07-01 | 2006-08-30 | 陈立新 | Installation structure of indexing worm screw of hobber work bench |
| CN201361751Y (en) * | 2009-03-20 | 2009-12-16 | 南京山能机电工程有限公司 | Two-section combined worm index actuating device of gear grinding machine |
| CN202684234U (en) * | 2012-07-24 | 2013-01-23 | 天津第一机床总厂 | Rotary working table for numerically controlled tooth-punching machine of large cylindrical gear |
| CN202963671U (en) * | 2012-12-28 | 2013-06-05 | 重庆机床(集团)有限责任公司 | Rotational motion clearance eliminating mechanism for working table of gear hobbing machine |
| CN203863155U (en) * | 2014-06-13 | 2014-10-08 | 重庆机床(集团)有限责任公司 | Indexing worm supporting structure of gear bobbing machine |
| CN205200717U (en) * | 2015-10-31 | 2016-05-04 | 重庆机床(集团)有限责任公司 | Gear -hobbing machine indexing worm static pressure bearing structure |
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Application publication date: 20151223 |