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Rotary table bearing device

A technology of rotary table and carrying device, applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc., can solve the problems of decreased machining accuracy, table deformation, etc., to achieve small deformation, prolong service life, avoid jitter and bouncing effect

Pending Publication Date: 2022-05-17
江苏恒望机械科技有限公司
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  • Claims
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AI Technical Summary

Problems solved by technology

With such a load-bearing design, when carrying large-size and high-quality workpieces, the table is easily deformed due to pressure, resulting in a significant drop in machining accuracy

Method used

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Experimental program
Comparison scheme
Effect test

experiment example

[0045] The force analysis is carried out on the rotary table designed in the second embodiment of the present invention to detect whether the design of the present invention can meet the load-bearing requirements and ensure that the deformation of the table is extremely small when the load is large.

[0046] Apply a force of 400,000N (40t) within the range of diameter 2293mm to 3800mm on the table surface, and conduct finite element simulation analysis on the strength of the table. The analysis results are shown in Figure 5 .

[0047] Depend on Figure 5 It can be seen from the displayed analysis results that the maximum deformation of the table 1 of the rotary table of the present invention occurs at the outermost edge of the table 1, and the maximum deformation is 0.027mm, which is extremely small and belongs to elastic deformation, and its influence on welding and the use of the turntable can be ignored . It can be seen that the load-bearing device of the present inventi...

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Abstract

The rotating table bearing device comprises a base, an outer bearing assembling groove is formed in the outer edge of the top face of the base, a center groove is formed in the center of the top face, a bearing face is arranged between the outer bearing assembling groove and the center groove, and an annular air floating groove is formed in the bearing face; the workbench bearing device further comprises an integrated oil way block for controlling gas / liquid medium conveying, and a gas / liquid medium outlet is formed in the air floatation tank and connected with the integrated oil way block through a pipeline. An outer bearing is arranged in the outer bearing assembling groove, and an inner bearing is arranged in the center groove. Through the special structural design, the bearing capacity of 35 tons or above can be achieved, operation is quite stable, and the service life is long.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a rotary table bearing device. Background technique [0002] In order to cope with the increasing processing of complex parts and improve processing accuracy and efficiency, multi-axis machine tools (5 axes or above) and compound machine tools have become the main equipment for precision machining. The CNC rotary table is not only the CNC rotary shaft of the equipment, but also plays the role of bearing the weight of the workpiece and clamping the workpiece, which has extremely high requirements for its precision and bearing capacity. There are two functions of the CNC rotary table, one is feed indexing, that is, when the workpiece is not cutting, the workpiece is indexed and rotated or positioned at any index within the range of 360°; the other is to realize the feed in the circumferential direction of the worktable Movement, that is, when cutting, it is...

Claims

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Application Information

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IPC IPC(8): B23Q1/25B23Q11/00
CPCB23Q1/25B23Q11/00
Inventor 李光荣魏泽华
Owner 江苏恒望机械科技有限公司
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