CN210998147U - Eccentric grinding main shaft - Google Patents
Eccentric grinding main shaft Download PDFInfo
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- CN210998147U CN210998147U CN201921919850.6U CN201921919850U CN210998147U CN 210998147 U CN210998147 U CN 210998147U CN 201921919850 U CN201921919850 U CN 201921919850U CN 210998147 U CN210998147 U CN 210998147U
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- eccentric
- outer shaft
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- worm
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Abstract
The utility model discloses an eccentric grinding main shaft, this main shaft is including installing outer axle and interior axle on the headstock, outer axle and interior axle in all be provided with eccentric hole, outer axle passes through the bearing and installs on the headstock, interior axle passes through the bearing and installs in the hole of outer axle, the hole eccentricity of interior axle is a, the hole eccentricity of outer axle is b, and a ═ b; the front end of the inner shaft is fixedly connected with the workpiece clamping mechanism, the clamping center of the workpiece clamping mechanism is concentric with the center of the inner hole of the inner shaft, the tail end of the inner shaft is connected with the worm and gear mechanism, and the tail end of the outer shaft is connected with the DDR direct drive motor. The utility model discloses an adjust interior axle and outer axle hole center relative distance and realize the regulation of eccentricity, not only easy operation is convenient, and the eccentricity can freely set up moreover, satisfies the purpose of the different eccentricities of grinding, has improved the machining efficiency of eccentric shaft greatly, guarantees the processingquality of eccentric shaft.
Description
Technical Field
The utility model relates to an eccentric grinding main shaft belongs to eccentric shaft abrasive machining technical field.
Background
Eccentric shaft processing often need adopt eccentric frock auxiliary machining because of both ends thimble hole no longer on the same axis, every eccentric shaft all will debug when the clamping, both time-wasting, extravagant manpower again, produce the error moreover easily. Especially, several sections of eccentric shaft workpieces are not concentric, so that the clamping and debugging process is more troublesome.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an eccentric grinding main shaft, this method not only can grind the eccentric shaft of different eccentricities, and the eccentricity is adjusted conveniently moreover, has improved the machining efficiency of eccentric shaft greatly, guarantees the processingquality of eccentric shaft.
In order to achieve the above object, the utility model provides a following technical scheme: an eccentric grinding spindle comprises an outer shaft and an inner shaft which are arranged on a spindle box, wherein eccentric inner holes are formed in the outer shaft and the inner shaft, the outer shaft is arranged on the spindle box through a bearing, the inner shaft is arranged in an inner hole of the outer shaft through a bearing, the inner hole eccentricity of the inner shaft is a, the inner hole eccentricity of the outer shaft is b, and a is b; the front end of the inner shaft is fixedly connected with the workpiece clamping mechanism, the clamping center of the workpiece clamping mechanism is concentric with the center of the inner hole of the inner shaft, the tail end of the inner shaft is connected with the worm and gear mechanism, and the tail end of the outer shaft is connected with the DDR direct drive motor.
Furthermore, the worm and gear mechanism comprises a worm wheel and a worm, the inner ring of the worm wheel is in interference fit with the shaft shoulder at the tail end of the inner shaft, the worm is rotatably arranged on the outer shaft, and the worm wheel and the worm are meshed with each other.
Furthermore, the two ends of the outer shaft are rotatably installed in the spindle box through an outer shaft front end bearing and an outer shaft rear end bearing respectively, and the two ends of the inner shaft are rotatably installed in an inner hole of the outer shaft through an inner shaft front end bearing and an inner shaft rear end bearing respectively.
Furthermore, the tail end of the inner shaft is in threaded connection with a lock nut.
Furthermore, end covers are arranged at two ends of the spindle box.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an adjust interior axle and outer axle hole center relative distance and realize the regulation of eccentricity, not only easy operation is convenient, and the eccentricity can freely set up moreover, satisfies the purpose of the different eccentricities of grinding, has improved the machining efficiency of eccentric shaft greatly, guarantees the processingquality of eccentric shaft.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the outer and inner shafts;
fig. 3 is a working principle diagram of the present invention.
Description of reference numerals: 1-a spindle box, 2-an outer shaft, 3-an inner shaft, 4-a workpiece clamping mechanism, 5-an inner shaft front end bearing, 6-an end cover, 7-an outer shaft front end bearing, 8-an outer shaft rear end bearing, 9-DDR direct drive motor, 10-a lock nut, 11-a worm wheel, 12-a worm and 13-an inner shaft rear end bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further described in detail with reference to the accompanying drawings and examples.
The embodiment of the utility model provides a: the structure schematic diagram of an eccentric grinding spindle is shown in fig. 1, and the eccentric grinding spindle comprises an outer shaft 3 and an inner shaft 2 which are installed on a spindle box 1, wherein eccentric inner holes are formed in the outer shaft 3 and the inner shaft 2, the outer shaft 3 is installed on the spindle box 1 through a bearing, the inner shaft 2 is installed in the inner hole of the outer shaft 3 through a bearing, the eccentricity of the inner hole of the inner shaft 2 is a, the eccentricity of the inner hole of the outer shaft 3 is b, and a is b; the front end of the inner shaft 2 is fixedly connected with the workpiece clamping mechanism 4, the clamping center of the workpiece clamping mechanism 4 is concentric with the center of the inner hole of the inner shaft 2, the tail end of the inner shaft 2 is connected with the worm and gear mechanism, and the tail end of the outer shaft 3 is connected with the DDR direct drive motor 9. The worm and gear mechanism comprises a worm wheel 11 and a worm 12, the inner ring of the worm wheel 11 is in interference fit with the shaft shoulder at the tail end of the inner shaft 2, the worm 12 is rotatably installed on the outer shaft 3, and the worm wheel 11 and the worm 12 are meshed with each other. Two ends of the outer shaft 3 are rotatably installed in the spindle box 1 through an outer shaft front end bearing 7 and an outer shaft rear end bearing 8 respectively, and two ends of the inner shaft 2 are rotatably installed in an inner hole of the outer shaft 3 through an inner shaft front end bearing 5 and an inner shaft rear end bearing 13 respectively. The tail end of the inner shaft 2 is in threaded connection with a locking nut 10; and end covers 6 are arranged at two ends of the spindle box 1.
The utility model discloses a theory of operation:
referring to fig. 1 to 3, firstly, an outer shaft 3 with an eccentric inner hole is installed on a spindle box 1 of a grinding machine through a bearing, then an inner shaft 2 with an eccentric inner hole is installed in the inner hole of the outer shaft 3 through a bearing, the inner shaft 2 is used as a workpiece clamping spindle, the inner hole eccentricity of the inner shaft 2 is a, the outer shaft 3 is used as a workpiece rotating spindle, the inner hole eccentricity of the outer shaft 3 is b, and a is equal to b; at the moment, the front end of the inner shaft 2 is fixedly connected with the workpiece clamping mechanism 4, then the workpiece is clamped by the workpiece clamping mechanism 4, the axis of the workpiece is concentric with the center of an inner hole of the inner shaft 2, the tail end of the inner shaft 2 is connected with the worm gear mechanism, and the tail end of the outer shaft 3 is connected with the DDR direct drive motor 9, so that the worm gear mechanism is adjusted to drive the inner shaft 2 to rotate around the axis, the center of the inner hole of the inner shaft 2 is deviated, the inner hole of the inner shaft 2 is adjusted in the eccentric direction, and meanwhile, the DDR direct drive motor 9 drives the outer shaft 3 to rotate, and the purpose.
When the eccentricity is adjusted, firstly, the DDR direct drive motor 9 is used for accurately stopping the outer shaft 3 at a certain rotating position and keeping the same, so that the inner shaft center B is eccentric relative to the outer shaft center A, the eccentricity is B, then the turbine worm mechanism is adjusted to drive the inner shaft 2 to rotate, so that the inner shaft inner hole center C performs circular motion with the eccentricity a relative to the inner shaft center B, because a is B, and the outer shaft center A is the rotating center of the grinding machine spindle, the workpiece clamping center is the inner shaft inner hole center C, when the workpiece clamping center is vertically collinear with the outer shaft center A, the workpiece eccentricity is the largest, and is emaxWhen the workpiece clamping center and the outer shaft center A form an arbitrary included angle α, the eccentric distance of the workpiece is
When the workpiece clamping center is coincident with the axis A of the outer shaft, the eccentricity of the workpiece is minimum at the moment, and is eminI.e. the workpiece eccentricity is zero.
To sum up, the utility model discloses an adjust that the eccentricity was realized to interior axle 2 and outer 3 hole center relative distances in the regulation, not only easy operation is convenient, and the eccentricity can freely set up moreover, satisfies the purpose of the different eccentricities of grinding, has improved the machining efficiency of eccentric shaft greatly, guarantees the processingquality of eccentric shaft.
Claims (5)
1. The utility model provides an eccentric grinding main shaft, is including installing outer axle (3) and interior axle (2) on headstock (1), its characterized in that: eccentric inner holes are formed in the outer shaft (3) and the inner shaft (2), the outer shaft (3) is mounted on the spindle box (1) through a bearing, the inner shaft (2) is mounted in the inner hole of the outer shaft (3) through a bearing, the inner hole eccentricity of the inner shaft (2) is a, the inner hole eccentricity of the outer shaft (3) is b, and a is b; the front end of the inner shaft (2) is fixedly connected with the workpiece clamping mechanism (4), the clamping center of the workpiece clamping mechanism (4) is concentric with the center of the inner hole of the inner shaft (2), the tail end of the inner shaft (2) is connected with the worm and gear mechanism, and the tail end of the outer shaft (3) is connected with the DDR direct drive motor (9).
2. The eccentric grinding spindle of claim 1, wherein: the worm and gear mechanism comprises a worm wheel (11) and a worm (12), an inner ring of the worm wheel (11) is in interference fit with a shaft shoulder at the tail end of the inner shaft (2), the worm (12) is rotatably installed on the outer shaft (3), and the worm wheel (11) and the worm (12) are meshed with each other.
3. The eccentric grinding spindle of claim 1, wherein: the two ends of the outer shaft (3) are rotatably installed in the spindle box (1) through an outer shaft front end bearing (7) and an outer shaft rear end bearing (8) respectively, and the two ends of the inner shaft (2) are rotatably installed in an inner hole of the outer shaft (3) through an inner shaft front end bearing (5) and an inner shaft rear end bearing (13) respectively.
4. The eccentric grinding spindle of claim 3, wherein: the tail end of the inner shaft (2) is in threaded connection with a locking nut (10).
5. The eccentric grinding spindle of claim 3, wherein: and end covers (6) are arranged at two ends of the spindle box (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921919850.6U CN210998147U (en) | 2019-11-08 | 2019-11-08 | Eccentric grinding main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921919850.6U CN210998147U (en) | 2019-11-08 | 2019-11-08 | Eccentric grinding main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210998147U true CN210998147U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921919850.6U Active CN210998147U (en) | 2019-11-08 | 2019-11-08 | Eccentric grinding main shaft |
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| CN (1) | CN210998147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194653A (en) * | 2022-05-30 | 2022-10-18 | 首钢京唐钢铁联合有限责任公司 | Simulator and simulation method |
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2019
- 2019-11-08 CN CN201921919850.6U patent/CN210998147U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115194653A (en) * | 2022-05-30 | 2022-10-18 | 首钢京唐钢铁联合有限责任公司 | Simulator and simulation method |
| CN115194653B (en) * | 2022-05-30 | 2023-12-22 | 首钢京唐钢铁联合有限责任公司 | Simulator and simulation method |
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