阅读说明：本技术 一种摆线齿轮传动的回转工作台 (Rotary worktable driven by cycloid gear ) 是由 余运清 丁国龙 于 2019-11-26 设计创作，主要内容包括：本发明提供了一种摆线齿轮传动的回转工作台,工作台底座的内部底端固定安装有电机,所述电机的主轴与输入轴相连,所述输入轴通过行星齿轮与曲柄轴啮合传动,所述曲柄轴通过第一轴承定位安装在输出轴的内部,所述曲柄轴的底端通过第二轴承定位在支撑法兰上,所述支撑法兰与输出轴固定相连；所述输出轴的底端定位柱上套装有平行布置的第一摆线轮和第二摆线轮,所述第一摆线轮和第二摆线轮通过针销与针齿壳啮合传动,所述针齿壳固定在工作台底座的上腔体,所述输出轴的顶端固定安装有工作台,所述工作台和工作台底座之间设置有滚动支撑结构。此工作台能够替代常规的蜗轮蜗杆传动,具有回转运动精度高,大减速比等优良传动性能。(The invention provides a cycloidal gear driven rotary working table.A motor is fixedly arranged at the bottom end in a base of the working table, a main shaft of the motor is connected with an input shaft, the input shaft is in meshing transmission with a crankshaft through a planetary gear, the crankshaft is positioned and arranged in an output shaft through a first bearing, the bottom end of the crankshaft is positioned on a supporting flange through a second bearing, and the supporting flange is fixedly connected with the output shaft; the bottom end positioning column of the output shaft is sleeved with a first cycloid wheel and a second cycloid wheel which are arranged in parallel, the first cycloid wheel and the second cycloid wheel are in meshing transmission with a needle gear shell through a needle pin, the needle gear shell is fixed on an upper cavity of a workbench base, a workbench is fixedly installed at the top end of the output shaft, and a rolling supporting structure is arranged between the workbench and the workbench base. The workbench can replace the conventional worm gear transmission, and has excellent transmission performances such as high precision of rotary motion, large reduction ratio and the like.)

1. The utility model provides a cycloidal gear drive's swivel work head which characterized in that: the novel automatic transmission device comprises a workbench base (5), wherein a motor (24) is fixedly installed at the bottom end inside the workbench base (5), a main shaft of the motor (24) is connected with an input shaft (17), the input shaft (17) is in meshing transmission with a crank shaft (20) through a planetary gear (18), the crank shaft (20) is positioned and installed inside an output shaft (22) through a first bearing, the bottom end of the crank shaft (20) is positioned on a supporting flange (11) through a second bearing (12), and the supporting flange (11) is fixedly connected with the output shaft (22); the utility model discloses a multi-functional rotary table, including output shaft (22), be equipped with parallel arrangement's first cycloid wheel (15) and second cycloid wheel (16) on the bottom reference column of output shaft (22), first cycloid wheel (15) and second cycloid wheel (16) are through pin (8) and pin gear shell (7) meshing transmission, the last cavity at workstation base (5) is fixed in pin gear shell (7), the top fixed mounting of output shaft (22) has workstation (1), be provided with the roll bearing structure between workstation (1) and workstation base (5).

2. The cycloidal geared rotary table of claim 1, wherein: the motor (24) forms key transmission fit with the shaft hole at the bottom end of the input shaft (17) through a flat key and transmits torque.

3. The cycloidal geared rotary table of claim 1, wherein: the planetary gear (18) is positioned and installed on the crank shaft (20) through a clamping spring (21) for shafts which are arranged up and down.

4. The cycloidal geared rotary table of claim 1, wherein: the first bearing and the second bearing (12) both adopt tapered roller bearings, and the first bearing and the second bearing are arranged in opposite directions.

5. The cycloidal geared rotary table of claim 1, wherein: the support flange (11) is fixedly connected with the bottom end of the output shaft (22) through a bolt (13) and a gasket (14).

6. The cycloidal geared rotary table of claim 1, wherein: the crankshaft (20) passes through holes in the first cycloidal gear (15) and the second cycloidal gear (16), and needle roller bearings (10) are installed at the positions of the through holes.

7. The cycloidal geared rotary table of claim 1, wherein: a main bearing (9) is arranged between the needle gear shell (7) and the output shaft (22), an oil seal ring (6) is arranged at the top end matched with the needle gear shell and the output shaft, and the outer ring of the main bearing (9) positioned at the bottom is fixed through a support flange (11).

8. The cycloidal geared rotary table of claim 1, wherein: the rolling support structure comprises a lower guide rail (4) fixed at the top end of a workbench base (5) and an upper guide rail (2) fixed at the bottom end of a workbench (1), wherein guide rail roller pins (3) are installed between the lower guide rail (4) and the upper guide rail (2) in a positioning mode through a retainer (23) and form rolling fit.

9. The cycloidal geared rotary table of claim 1, wherein: and a plurality of T-shaped groove rails which are longitudinally and transversely arranged are processed at the top of the workbench (1).

10. A cycloidal geared rotary table according to claim 1 or 4 in which: the first bearing is positioned and installed in a bearing hole of the output shaft (22) through an adjusting gasket (19).

Technical Field

The invention relates to the field of honing head devices, in particular to a rotary worktable driven by a cycloid gear.

Background

The prior rotary worktable mostly adopts a worm gear and worm transmission mechanism, and the cycloid gear has excellent transmission performance such as high transmission precision, large reduction ratio and the like, so the cycloid gear is applied to the rotary worktable to replace the conventional worm gear and worm transmission, and the motion precision of the worktable in processing and use is ensured through an unloading and positioning structure.

Disclosure of Invention

The invention mainly aims to solve the defects in the prior art, and designs a cycloidal gear transmission rotary worktable which can replace the conventional worm and gear transmission and has excellent transmission performances such as high precision of rotary motion, large reduction ratio and the like.

In order to achieve the technical features, the invention is realized as follows: a rotary working table driven by a cycloid gear comprises a working table base, wherein a motor is fixedly mounted at the bottom end inside the working table base, a main shaft of the motor is connected with an input shaft, the input shaft is in meshing transmission with a crankshaft through a planetary gear, the crankshaft is positioned and mounted inside an output shaft through a first bearing, the bottom end of the crankshaft is positioned on a supporting flange through a second bearing, and the supporting flange is fixedly connected with the output shaft; the bottom end positioning column of the output shaft is sleeved with a first cycloid wheel and a second cycloid wheel which are arranged in parallel, the first cycloid wheel and the second cycloid wheel are in meshing transmission with a needle gear shell through a needle pin, the needle gear shell is fixed on an upper cavity of a workbench base, a workbench is fixedly installed at the top end of the output shaft, and a rolling supporting structure is arranged between the workbench and the workbench base.

The motor forms key transmission fit with the shaft hole at the bottom end of the input shaft through a flat key and transmits torque.

The planetary gear is positioned and installed on the crankshaft through clamping springs for shafts arranged up and down.

The first bearing and the second bearing are both tapered roller bearings and are arranged in opposite directions.

The supporting flange is fixedly connected with the bottom end of the output shaft through a bolt and a gasket.

The crank shaft penetrates through holes in the first cycloid wheel and the second cycloid wheel, and needle roller bearings are installed at the positions of the through holes.

And a main bearing is arranged between the pin gear shell and the output shaft, an oil seal ring is arranged at the top end matched with the pin gear shell and the output shaft, and the outer ring of the main bearing positioned at the bottom is fixed through a support flange.

The rolling support structure comprises a lower guide rail fixed at the top end of the workbench base and an upper guide rail fixed at the bottom end of the workbench, and guide rail roller needles are positioned and installed between the lower guide rail and the upper guide rail through a retainer to form rolling fit.

And a plurality of T-shaped groove rails which are longitudinally and transversely arranged are processed at the top of the workbench.

The first bearing is positioned and installed in a bearing hole of the output shaft through an adjusting gasket.

The invention has the following beneficial effects:

by adopting the rotary worktable, the traditional worm and gear is replaced by a mode of combining planet wheel transmission and cycloidal gear transmission to drive the worktable to rotate, so that the movement precision of the worktable is effectively improved. In addition, the cycloidal gear has the advantages of high transmission precision and large reduction ratio.

Drawings

The invention is further illustrated by the following figures and examples.

Fig. 1 is a front view of the present invention.

Fig. 2 is a view a-a of fig. 1 of the present invention.

Fig. 3 is a top view of the present invention.

Fig. 4 is a view of the invention from direction B of fig. 1.

Fig. 5 is a partial view of C of fig. 2 in accordance with the present invention.

In the figure: the device comprises a workbench 1, an upper guide rail 2, a guide rail needle roller 3, a lower guide rail 4, a workbench base 5, an oil seal ring 6, a needle gear shell 7, a needle pin 8, a main bearing 9, a needle roller bearing 10, a support flange 11, a second bearing 12, a bolt 13, a gasket 14, a first cycloidal gear 15, a second cycloidal gear 16, an input shaft 17, a planetary gear 18, an adjusting gasket 19, a crankshaft 20, a shaft clamp spring 21, an output shaft 22, a retainer 23 and a motor 24.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1-5, a cycloidal gear driven rotary table comprises a table base 5, wherein a motor 24 is fixedly mounted at the bottom end inside the table base 5, a main shaft of the motor 24 is connected with an input shaft 17, the input shaft 17 is in meshing transmission with a crank shaft 20 through a planetary gear 18, the crank shaft 20 is positioned and mounted inside an output shaft 22 through a first bearing, the bottom end of the crank shaft 20 is positioned on a support flange 11 through a second bearing 12, and the support flange 11 is fixedly connected with the output shaft 22; the top end positioning column of output shaft 22 is gone up the cover and is equipped with parallel arrangement's first cycloid wheel 15 and second cycloid wheel 16, first cycloid wheel 15 and second cycloid wheel 16 pass through the pin 8 and the meshing transmission of pin wheel shell 7, pin wheel shell 7 is fixed at the last cavity of workstation base 5, the top fixed mounting of output shaft 22 has workstation 1, be provided with the roll bearing structure between workstation 1 and the workstation base 5. Through the rotary worktable with the structure, the transmission mode combining planetary gear transmission and cycloidal gear transmission is adopted, and the rotation precision of the worktable 1 is effectively ensured by means of the excellent transmission characteristics of high precision and large reduction ratio of the cycloidal gear transmission, so that the traditional worm and gear transmission mode is replaced, and the transmission efficiency is also improved.

Further, the motor 24 is in key transmission fit with a shaft hole at the bottom end of the input shaft 17 through a flat key, and transmits torque. Through key transmission cooperation, simplified its transmission structure, improved its transmission efficiency.

Further, the planetary gear 18 is positioned and mounted on the crank shaft 20 by a snap spring 21 through shafts arranged up and down. The planetary gear 18 can be positioned effectively by the shaft circlip 21.

Further, the first bearing and the second bearing 12 are tapered roller bearings, and are arranged in opposite directions. By the tapered roller bearing, the crankshaft 20 can bear certain axial force and radial force, and the aligning precision of the crankshaft is ensured.

Further, the support flange 11 is fixedly connected to the bottom end of the output shaft 22 through bolts 13 and a gasket 14. The output shaft 22 and the support flange 11 can be effectively and fixedly connected through the structure, and the connection reliability is guaranteed.

Further, the crank shaft 20 passes through holes of the first and second cycloid gears 15 and 16, and the needle bearings 10 are installed at the positions of the through holes. The needle roller bearing 10 ensures smooth rotation of the crankshaft 20.

Furthermore, a main bearing 9 is installed between the pin gear shell 7 and the output shaft 22, an oil seal ring 6 is arranged at the top end of the pin gear shell and the output shaft in a matching manner, and the outer ring of the main bearing 9 at the bottom is fixed through a support flange 11. The main bearing 9 ensures that the output shaft 22 can smoothly rotate in the pin gear shell 7, and the rotation efficiency is improved while the support is ensured.

Further, the rolling support structure comprises a lower guide rail 4 fixed at the top end of the workbench base 5 and an upper guide rail 2 fixed at the bottom end of the workbench 1, and guide rail roller pins 3 are positioned and installed between the lower guide rail 4 and the upper guide rail 2 through a retainer 23 and form rolling fit. Through foretell roll bearing structure guaranteed that workstation 1 can carry out smooth and easy rotation at the top of workstation base 5, the effectual frictional force that rotates the in-process that has reduced. And the guide rail roller pin 3 is supported and positioned by the retainer 23, so that the safety of the guide rail roller pin in the operation process is ensured.

Further, a plurality of T-shaped groove rails which are arranged longitudinally and transversely are processed at the top of the workbench 1. Through the plurality of T-shaped groove rails, a workpiece to be machined can be conveniently positioned and installed on the T-shaped groove rails, and the clamping efficiency is improved.

Further, the first bearing is positioned and installed in a bearing hole of the output shaft 22 through an adjusting gasket 19. The first bearing can be effectively adjusted and installed through the adjusting gasket 19, and the stability and the reliability of the support of the crank shaft 20 are further ensured.

The working process and principle of the invention are as follows:

in the specific transmission process, the input shaft 17 is driven by the motor 24, the input shaft 17 drives the corresponding planetary gear 18, the crankshaft 20 is driven by the planetary gear 18, the first cycloidal gear 15 and the second cycloidal gear 16 are driven by the crankshaft 20, the first cycloidal gear 15 and the second cycloidal gear 16 are finally matched with the pin gear shell 7 through the pin 8, the output shaft 22 is finally driven by the first cycloidal gear 15 and the second cycloidal gear 16, and the top workbench 1 is driven to rotate through the output shaft 22.