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Working table of large-scale vertical high-speed numerically-controlled lathe

A worktable and CNC lathe technology, applied in the mechanical field, can solve problems such as poor workpiece quality and unstable operation, and achieve the effect of increasing the speed and preventing axial and radial deviation

Inactive Publication Date: 2013-09-11
QINGDAO DACHENG MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the working surface of the existing large-scale vertical high-speed CNC lathe is unstable and the quality of the processed workpiece is poor, the present invention provides a large-scale vertical high-speed CNC lathe working surface

Method used

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  • Working table of large-scale vertical high-speed numerically-controlled lathe

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Embodiment 1

[0014] As shown in the figure, a large vertical high-speed CNC lathe worktable, which includes a base 1, a gear plate 4, a worktable 5, a spindle 6, a spindle encoder 2, and a spindle fastening cap 10, wherein the workbench 5 and the gear plate 4 are designed separately and fastened together to form a working table. The base 1 and the working table are connected together through the main shaft 6 and the main shaft encoder 2. There is a main shaft fastening cap 10 between the main shaft 6 and the main shaft encoder 2. There is a radial main bearing 9 between the main shaft 6 and an upper thrust bearing 7 between the lower end of the outer edge of the main shaft fastening cap 10 and the gear plate 4; the outer edge of the gear plate 4 is between the base 1 and the main thrust The bearing 3 supports the worktable, and the gear plate 4, the base 1 and the main shaft 6 form two airtight cavities 11, and a set of oil pressure system 10 is arranged in each cavity 11.

[0015] As show...

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PUM

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Abstract

The invention discloses a working table of a large-scale vertical high-speed numerically-controlled lathe. The working table comprises a base, a fluted disc, a workbench, a spindle, a spindle encoder and a spindle fastening cap, wherein the workbench and the fluted disc adopt a split-type design and are fastened together to form the working table; the base is connected with the working table through the spindle and the spindle encoder; the spindle fastening cap is arranged between the spindle and the spindle encoder; a radial main bearing is arranged between the fluted disc and the spindle; an upper thrust bearing is arranged between the lower end of the outer edge of the spindle fastening cap and the fluted disc; a main thrust bearing is adopted between the outer edge of the fluted disc and the base to support the working table; two closed cavities are formed by the fluted disc, the base and the spindle; and a set of oil hydraulic system is arranged in each cavity. Not only the rotational speed of the working table is remarkably increased, but also the axial and radial deviation of the working table can be effectively prevented and the working table is very stable during high-speed operation.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a worktop of a numerically controlled lathe, in particular to a worktop of a large vertical high-speed numerically controlled lathe. Background technique [0002] At present, large-scale vertical CNC lathes with a working surface of 3.15 meters either adopt the support method of large thrust bearings or the oil film support method, both of which have the problem of unstable operation of the working surface. For the method of large thrust bearing, the large thrust bearing is usually set at the inner center of the worktable, and because the workpiece on the large worktable is heavy, the worktable is easily deformed during operation, resulting in unstable operation and poor quality of processed workpieces. For those supported by oil film, the speed of turning and turning and milling is still low, usually in the range of 2-63rpm. The main reason why it cannot achieve high-speed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q1/26
Inventor 李敦峰郭信群刘海波李克宗
Owner QINGDAO DACHENG MACHINE