Unlock instant, AI-driven research and patent intelligence for your innovation.

Numerically-controlled machine tool spindle preheating control method and device

A technology of CNC machine tools and preheating control, which is applied in the direction of manufacturing tools, metal processing machinery parts, maintenance and safety accessories, etc. It can solve the problems of limited machining accuracy, and achieve the effect of improving machining accuracy and reducing Z-axis errors.

Active Publication Date: 2020-05-19
DONGGUAN HAOSHENG IND CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The thermal elongation of the spindle is compensated for the position through the temperature reference, and the machining accuracy achieved is limited

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Numerically-controlled machine tool spindle preheating control method and device
  • Numerically-controlled machine tool spindle preheating control method and device
  • Numerically-controlled machine tool spindle preheating control method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Refer below figure 1 An embodiment of the CNC machine tool spindle warm-up control method provided by the embodiment of the present invention is described in detail; figure 1 As shown, this embodiment mainly includes the following steps:

[0032] In step S10, during the operation of the main shaft, the current running time and current temperature of the main shaft are obtained every preset cycle;

[0033] In step S20, according to the running time and temperature, the corresponding thermal elongation is queried in the preset thermal elongation mapping table, and the thermal elongation mapping table stores the spindle speed, temperature, running time and thermal elongation mapping relationship;

[0034] In step S30, the command position compensation in the Z-axis direction is performed according to the thermal extension amount.

[0035] In some possible implementation manners, the thermal elongation is obtained through the following steps: separately measuring the the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a numerically-controlled machine tool spindle preheating control method and device. The method comprises the following steps that in the spindle operation process, the current operation time and current temperature of a spindle are acquired every other a preset period; according to the operation time and temperature, the corresponding heat extension amountis inquired in a preset heat extension amount mapping table, and the mapping relation of the spindle rotating speed, the temperature, the operation time and the heat extension amount is stored in theheat extension amount mapping table; and instruction position compensation in the direction of the axis Z is carried out according to the heat extension amount. According to the numerically-controlled machine tool spindle preheating control method and device, Z-axis errors can be remarkably reduced, and the machining precision can be improved.

Description

technical field [0001] The invention relates to the field of numerical control machine tools, in particular to a method and device for controlling the preheating of a spindle of a numerical control machine tool. Background technique [0002] During the operation of the spindle of the CNC machine tool, as the temperature rises, thermal extension and deformation will occur due to thermal expansion and contraction, which will affect the machining accuracy. Therefore, it is necessary to perform position compensation on the spindle. The spindle position compensation schemes in the prior art are based on setting a temperature threshold as a reference, and if the temperature of the spindle exceeds the threshold, the spindle position is compensated. [0003] The inventor found in the process of implementing the present invention that the above-mentioned technical solution has the following defects: [0004] The thermal elongation of the spindle is compensated by the temperature ref...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23Q11/00
CPCB23Q11/0003
Inventor 杨光喻春洪
Owner DONGGUAN HAOSHENG IND CO LTD