Anti-impact dense ball static pressure proportion control mixing bearing

A technology of proportional control and dense beads, which is applied in the field of measuring tools to achieve the effect of solving the problem of easy damage of dense beads, high measurement accuracy and preventing impact

Active Publication Date: 2012-11-21
HARBIN MEASURING & CUTTING TOOL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional spindle end face is supported by hydrostatic support, rolling dense ball rolling dense ball bearing and other methods, but these single support methods cannot prevent the impact of the large-load workpiece on the spindle system during installation, and cannot effectively Reduce the roundness deformation caused by the load of the dense ball rolling dense ball bearing on the end face of the spindle system in the measurement state, which directly affects the rotary motion accuracy of the spindle system

Method used

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  • Anti-impact dense ball static pressure proportion control mixing bearing
  • Anti-impact dense ball static pressure proportion control mixing bearing
  • Anti-impact dense ball static pressure proportion control mixing bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Anti-shock dense ball static pressure proportional control hybrid bearing, its composition includes: base 1, said base 1 is equipped with main shaft 2 and static pressure ball table 3, said main shaft 2 is covered with shaft sleeve 4, said The static pressure ball table 3 is equipped with a rolling dense ball bearing 5 and a ball cage 6. There is a space 7 for hydraulic oil between the rolling dense ball bearing 5 and the ball cage 6. The lower end of the ball cage 6 is It is connected to the hydraulic oil inlet hole 8, the upper end of the static pressure ball table 3 is connected to the turntable 9, the turntable 9 is connected to the pressure receiving tray 10, and the rolling dense ball bearing has one set.

[0025] The anti-shock dense bead static pressure proportional control hybrid support, the dense bead cage 11 is installed between the main shaft 2 and the bushing 4, and the dense bead cage 11 is equipped with a rolling dense bead bearing 12.

[0026] The anti-...

Embodiment 2

[0030] According to the anti-shock dense ball static pressure proportional control hybrid bearing described in Embodiment 1, the hydraulic oil inlet hole connected to the lower end of the ball cage is vertical, and the vertical hydraulic oil inlet hole is connected to the horizontal The hydraulic oil inlet hole; the hydraulic system has a variety of pressure and flow, which is completed by the frequency conversion motor to drive the hydraulic pump. Different pressures are set by the proportional control relief valve. Before measurement or processing, as long as the weight of the workpiece is input into the computer, the computer will give corresponding instructions to the proportional control valve, and the proportional control valve will automatically adjust the pressure to the corresponding gear, so that the hydraulic pressure generated The upward buoyancy overcomes a part of the weight (this upward buoyancy varies with the weight of the workpiece), so that the force on the r...

Embodiment 3

[0032] According to the anti-shock ball static pressure proportional control hybrid support described in Embodiment 1, the upper end of the base is provided with an oil return hole 16 vertically connected to the horizontal direction.

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Abstract

The invention relates to an anti-impact dense ball static pressure proportion control mixing bearing. Because of the larger weight of a loaded workpiece, the bearing capacity of a spindle system of a large-size measurement instrument and machine tool is of particular importance when the large-size measurement instrument and machine tool carries out measurement or processing on the heavy loaded workpiece. The anti-impact dense ball static pressure proportion control mixing bearing comprises a base (1) which is provided with a spindle (2) and a static pressure ball platform (3), the spindle is sleeved with a shaft sleeve (4), the static pressure ball platform is provided with a rolling dense ball bearing (5) and a ball retainer (6), a space for loading hydraulic oil is reserved between the rolling dense ball bearing and the ball retainer, the lower end of the ball retainer is connected with a hydraulic oil feed hole (8), the upper end of the static pressure ball platform is connected with a turntable (9), and the turntable is connected with a pressure-bearing tray (10). In the invention, the anti-impact dense ball static pressure proportion control mixing bearing is used.

Description

Technical field: [0001] The invention relates to the field of measuring tools, in particular to an anti-shock dense bead static pressure proportional control hybrid support. Background technique: [0002] Large-scale measuring instruments and machine tools are loaded with heavy workpieces, so the bearing capacity of the spindle system is particularly important when measuring or processing large-loaded workpieces. The traditional spindle end face is supported by hydrostatic support, rolling dense ball rolling dense ball bearing and other methods, but these single support methods cannot prevent the impact of the large-load workpiece on the spindle system during installation, and cannot effectively Reduce the roundness deformation caused by the load caused by the dense ball bearing on the end face of the spindle system in the measurement state, thus directly affecting the rotary motion accuracy of the spindle system. Invention content: [0003] The object of the present inve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C32/00F16C33/00
Inventor 孙秀文
Owner HARBIN MEASURING & CUTTING TOOL GROUP CO LTD
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