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Horizontal thin type numeral control panoramic table for point gearing cambered surface cam mechanism

An arc cam and point meshing technology, which is applied in the direction of large fixed members, metal processing machinery parts, metal processing equipment, etc., can solve the problems of affecting the service life of the workbench, the size limitation of the processed workpiece, and the low positioning accuracy, so as to eliminate the gap Convenience, low processing and assembly accuracy requirements, and high positioning accuracy

Inactive Publication Date: 2007-02-07
SHAANXI UNIV OF SCI & TECH
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AI Technical Summary

Problems solved by technology

[0002] The traditional CNC workbench adopts a worm gear mechanism or a curved surface cam mechanism with wire meshing. The CNC rotary table using a worm gear mechanism requires a separate rotary device for the rotary table in addition to the worm gear mechanism as the driving device. The structure is complex and the thickness Higher, so that the size of the processed workpiece is limited; the arc cam mechanism with wire meshing has been greatly improved on this basis, but the sliding friction is large, which greatly affects the service life of the worktable, and the positioning accuracy is not high.

Method used

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  • Horizontal thin type numeral control panoramic table for point gearing cambered surface cam mechanism
  • Horizontal thin type numeral control panoramic table for point gearing cambered surface cam mechanism

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Embodiment Construction

[0009] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0010] see figure 1 , 2, the present invention includes a base 6 and an indexing shaft 3 with a bearing 4, the indexing shaft 3 is set on the base 6 through the bearing 4, and a lock nut for preloading is provided at the lower end of the indexing shaft 3 7, and at the lower end of the base 6 is also provided with a baffle 8 that closes the index shaft 3, on the base 6 is provided with an index disc 2 connected with the index shaft 3, and the lower part of the index disc 2 radiates radially Uniformly distributed spherical tapered rollers 1, the spherical tapered rollers 1 mesh with the arc cam 5 set in the base 6, an incomplete inner conical table 9 is also provided on the base 6, and the spherical tapered rollers 1 are set On the inner conical table surface 9 , the inner conical table surface 9 is disconnecte...

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Abstract

The invention relates to a digit-control rotation cam of horizontal thin point mesh arc cam, wherein it comprises a base 6, and a rotation axle with bearing; the rotation axle via the bearing is arranged on the base; the base also has a rotation disc connected to the rotation axle; the outer side of rotation disc has a taper roller meshed with the arc cam inside the base. The invention uses controllable mesh contact; when the profile of taper roller and the profile of arc cam rotate, the adaptive ability of device on the position error and shape error can be improved; the invention has long service life, high positioning accuracy and simple process.

Description

technical field [0001] The invention relates to an arc cam mechanism numerical control rotary table for a numerical control machine tool, in particular to a horizontal thin point meshing arc cam mechanism numerical control rotary table. Background technique [0002] The traditional CNC workbench adopts a worm gear mechanism or a curved surface cam mechanism with wire meshing. The CNC rotary table using a worm gear mechanism requires a separate rotary device for the rotary table in addition to the worm gear mechanism as the driving device. The structure is complex and the thickness Higher, so that the size of the workpiece is limited; the curved surface cam mechanism of wire meshing has been greatly improved on this basis, but the sliding friction is large, which greatly affects the service life of the workbench, and the positioning accuracy is not high. . Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcoming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/40
Inventor 曹巨江张淳曹西京闫茹张利平
Owner SHAANXI UNIV OF SCI & TECH
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