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Hydrostatic guideway fine compensation ram and boring shaft winding degree precision compensation method

A technology of static pressure guide rail and precision compensation, which is applied in metal processing mechanical parts, metal processing, automatic control devices, etc., can solve the problems of instantaneous precision drop, influence sensitivity, large inertial force, etc., to improve reliability, high sensitivity, The effect of simplifying the structure

Inactive Publication Date: 2019-01-04
北京北一机床有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems include: the need for special complex mechanisms; heavy hammer balance has a large inertial force; when the acceleration or speed changes greatly, the inertial force affects the corresponding sensitivity or causes insufficient flow, resulting in a significant drop in instantaneous accuracy; complex debugging; high failure rate

Method used

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  • Hydrostatic guideway fine compensation ram and boring shaft winding degree precision compensation method
  • Hydrostatic guideway fine compensation ram and boring shaft winding degree precision compensation method
  • Hydrostatic guideway fine compensation ram and boring shaft winding degree precision compensation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, a static pressure guide rail fine compensation ram and a boring shaft winding precision compensation method, including the following steps;

[0031] Based on the Y-axis constant flow closed static pressure guideway technology, so first the Y axis should be a constant flow closed static pressure guideway; usually the constant flow closed static pressure guideway oil grinding thickness is relatively stable, and after the machine tool is adjusted, it can also be adjusted due to There are slight changes in load changes and temperature changes (static pressure oil viscosity changes), but for high-precision machine tools, this change should be within ±0.01mm.

[0032] The adjustment function is realized by the specific 4 oil pad thickness changes in the Y-axis guideway. That is, the thickness of a pair of oil pads at the opposite corners is reduced at the same time, and the thickness of th...

Embodiment 2

[0039] Embodiment 2: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, a method for compensating the winding accuracy of a boring shaft comprises the following steps;

[0040] By detecting the parameters of the Y-axis constant-flow closed-type static pressure guideway, the Y-axis integrates automatic and variable oil film thickness closed-type static-pressure guideway and accessory head automatic identification technology on the basis of the constant-flow closed-type static pressure guideway technology to realize the ram And the fine compensation of the winding degree of the boring shaft. At the same time, it cooperates with ram pre-deformation technology and CNC system deviation compensation to realize high-precision, high-stability and high-reliability compensation for ram and boring shaft winding.

[0041] Also contains the following steps;

[0042] Based on the Y-axis constant-flow closed-type static pressure guideway technology, first of all, the Y-...

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Abstract

The invention provides a hydrostatic guideway fine compensation ram and a boring shaft winding degree precision compensation method, and belongs to the technical field of floor type boring and millingmachines. Ram and boring shaft winding degree fine compensation is achieved through detection of parameters of a Y-axis constant-flow closed hydrostatic guideway and the steps of automatic recognition of the automatic and variable oil film thickness closed hydrostatic guideway and an accessory head; and ram and boring shaft winding degree high-precision and high-stability compensation is achievedthrough the steps of measurement of predeformation of a ram and deviation compensation of a CNC system. The method has the beneficial effects that according to the Y axis, on the technical basis of the constant-flow closed hydrostatic guideway, the steps of automatic recognition of the automatic and variable oil film thickness closed hydrostatic guideway and the accessory head are integrated, andram and boring shaft winding degree fine compensation is achieved.

Description

technical field [0001] The invention relates to a fine compensation ram of a static pressure guide rail and a precision compensation method for the winding of a boring shaft, belonging to the technical field of floor milling and boring machines. Background technique [0002] Existing methods for compensating the ram and the winding of the boring shaft mainly include: weight (hydraulic) balance, vertical hydraulic balance, vertical double screw balance, hydraulic tensioning of the ram box, CNC system deviation compensation, etc. The main problems include: the need for a special complex mechanism; heavy hammer balance has a large inertial force; when the acceleration or speed changes greatly, the inertial force affects the corresponding sensitivity or causes insufficient flow, resulting in a significant drop in instantaneous accuracy; complex debugging; high failure rate. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q15/14
CPCB23Q15/14
Inventor 韩胜张菊
Owner 北京北一机床有限责任公司
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