Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Track smoothing method and device of operation equipment in numerical control system, and numerical control machine tool

A technology for operating equipment and trajectory smoothing, applied in the field of trajectory smoothing methods and devices and CNC machine tools, can solve the problems of severe vibration and poor smooth performance of machine tools, and achieve the effects of improving smooth performance and avoiding machine impact and violent vibration.

Active Publication Date: 2012-09-19
BEIJING A&E TECH
View PDF4 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention mainly solves the technical problems in the prior art that the machine tool produces severe vibration and poor stability performance due to the inability to achieve continuous speed between the machining track and the sliding track, and provides a track smoothing method and a method for operating equipment in a numerical control system. Devices and CNC machine tools

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
  • Track smoothing method and device of operation equipment in numerical control system, and numerical control machine tool
  • Track smoothing method and device of operation equipment in numerical control system, and numerical control machine tool
  • Track smoothing method and device of operation equipment in numerical control system, and numerical control machine tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, please refer to figure 1 , the method for smoothing the trajectory of the operating equipment in the numerical control system provided by the embodiment of the present invention includes:

[0036] In step S100, S-shaped speed planning is performed on the first processing trajectory and the second processing trajectory respectively.

[0037] In step S100, the operating device is a hardware execution unit in the CNC system, including CNC cutting head, CNC laser welding head, CNC operating platform, robot arm and other components that can be controlled by software programs; the first processing track and the second The processing trajectory is the expected processing path of the operating device. For example, the combination of the first processing trajectory and the second processing trajectory may include any one of straight line and straight line, straight line and curved line, and curved line and curved line. In this embodiment, the S-shaped speed planni...

Embodiment 2

[0046] Embodiment two, please refer to figure 2 , the method for smoothing the trajectory of the operating equipment in the numerical control system provided by the embodiment of the present invention includes:

[0047] Step S100', perform S-shaped speed planning for the first processing trajectory and the second processing trajectory respectively.

[0048] In step S100', the operating device is a hardware execution unit in the CNC system, including CNC cutting head, CNC laser welding head, CNC operating platform, robot arm and other components that can be controlled by software programs; the first processing track and the second The second processing trajectory is the expected processing path of the operating device. For example, the combination of the first processing trajectory and the second processing trajectory may include any one of straight line and straight line, straight line and curved line, and curved line and curved line. In this embodiment, the S-shaped speed p...

Embodiment 3

[0063] Embodiment three, please refer to image 3 ,yes figure 1 or figure 2 The schematic flow chart of the first example of the trajectory smoothing method is shown. In this embodiment, the steps of the trajectory smoothing method for operating equipment in the numerical control system will not be repeated. The difference between the S-shaped speed planning in this embodiment is that it includes:

[0064] Step S200, acquiring the sum S of the lengths of the current acceleration path and deceleration path and the length of the path L determined by the current specified speed v of the operating device on the first processing trajectory and / or the second processing trajectory.

[0065] Step S201, judging whether the trajectory length L is smaller than the sum S of the lengths of the current acceleration path and the deceleration path, if yes, execute step S202, if not, execute step S203; number of executions +1.

[0066] Step S202, reduce the current specified speed v, and ex...

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 invention discloses a track smoothing method and a device of operation equipment in a numerical control system, and a numerical control machine tool. The method comprises the following steps of: respectively performing S-type velocity planning on a first processing track and a second processing track; pre-calculating corresponding velocity and position of a sliding track on a starting point and an end point of the first processing track and the second processing track according to a preset sliding ratio; acquiring a track length L and a maximum velocity Vm of the first processing track and the second processing track subjected to the S-type velocity planning; and regulating the velocity and position of the starting point and the end point of the sliding track according to the track length L and a maximum velocity Vm of the first processing track and the second processing track. By the track smoothing method and device of the operation equipment in the numerical control system, the S-type velocity planning is performed on the processing track, so that the smooth transition in continuous velocity can be realized between the sliding track and the processing track; the stability performance of the machine tool is effectively improved; and the impacting and violent vibration phenomena of the machine tool are avoided.

Description

technical field [0001] The invention relates to the field of numerical control systems, in particular to a method and device for smoothing the trajectory of operating equipment in the numerical control system and a numerical control machine tool. Background technique [0002] In the field of automation control, CNC machine tools, industrial robots and other equipment strive for high speed and high precision to improve processing quality and processing efficiency. When the corners of the parts connected between adjacent processing tracks are relatively large, it will cause excessive changes in the motion velocity vector, which will easily cause a large impact on the machine tool. Although the method of zero speed can be used to pass the corner, the method of passing the corner at zero speed will seriously affect the processing efficiency. [0003] In the prior art, the method of adding a small arc-shaped sliding trajectory between the processing trajectories is generally use...

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
IPC IPC(8): G05B19/19
Inventor 苏晓芸
Owner BEIJING A&E TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com