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

Tool feeding speed control method and device and numerical control machining terminal

A technology of feed speed and control method, which is applied in the field of CNC machining terminal and tool feed speed control, can solve the problems of reducing the surface quality of curved products and different surface smoothness, avoiding uneven surface smoothness and improving surface processing quality. , the effect of increasing competitiveness

Active Publication Date: 2020-08-18
江西正皓瑞森精密智能制造股份有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since any two adjacent areas of the curved surface product in different areas have different feed speeds, the surface finish of the border area between the two adjacent areas after processing is different, which greatly reduces the quality of the curved surface product. Surface Quality

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
  • Tool feeding speed control method and device and numerical control machining terminal
  • Tool feeding speed control method and device and numerical control machining terminal
  • Tool feeding speed control method and device and numerical control machining terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] figure 2 A schematic flowchart of a method for controlling the feed speed of a tool provided by the first embodiment of the present invention is shown.

[0058] The tool feed speed control method includes the following steps:

[0059] In step S110, within the set processing area, parallel straight lines are drawn at a predetermined distance on the subsequent processing side according to the straight line corresponding to the tool trajectory, and the intersection points of the parallel straight lines and a predetermined number of sub-areas are determined.

[0060] Wherein, the predetermined number of sub-regions is obtained by dividing the surface area of ​​the product to be processed in advance, in order to make the predetermined number of sub-regions can completely cover the surface area of ​​the product to be processed, such as image 3 As shown, each sub-area includes at least part of the surface area of ​​the product to be processed, and each sub-area is preset wi...

Embodiment 2

[0107] Figure 10 A schematic structural diagram of a tool feed speed control device provided by the second embodiment of the present invention is shown. The tool feed speed control device 400 corresponds to the tool feed speed control method in Embodiment 1, and any optional items in Embodiment 1 are also applicable to this embodiment, and will not be described in detail here.

[0108]The tool feed speed control device 400 includes an intersection point determination module 410 , a judgment module 420 , an auxiliary point setting module 430 and a feed speed determination module 440 .

[0109] The intersection determination module 410 is used to make a parallel straight line at a predetermined distance on the subsequent processing side according to the straight line corresponding to the tool trajectory in the set processing area, and determine the intersection points of the parallel straight line and a predetermined number of sub-areas, wherein the The predetermined number of...

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 tool feeding speed control method and device and a numerical control machining terminal, and the method comprises the steps: drawing a parallel straight line at a preset distance according to a straight line corresponding to a tool path in a set processing region, and determining the intersection points of the parallel straight line and a preset number of sub-regions; judging whether the distance between any two adjacent intersection points reaches a distance threshold value or not: if yes, taking any intersection point corresponding to the distance as a base point, and setting two auxiliary points around the base point on the parallel straight line according to a distance threshold value; respectively projecting the auxiliary points on the straight lines corresponding to the tool path to obtain corresponding auxiliary projection points, and determining the feeding speed of the speed transition interval between the two auxiliary projection points on the straight lines corresponding to the tool path according to the feeding speed of the subareas where the auxiliary projection points are located. Under the condition that hardware cost is not changed, the situation that different feeding speeds are used in different areas of the surface area of the machined product, and consequently the smoothness degree of the surface of the product is uneven is avoided,and the product machining quality is improved.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a method and device for controlling the feed speed of a tool, and a numerical control machining terminal. Background technique [0002] In the field of CNC machining, ball cutters are usually selected to process curved surface products. Usually in the processing process, the ball cutter and the product are in the form of point contact, and the material is cut by the high-speed rotation of the ball cutter blade. [0003] like figure 1 As shown, Ska is the tool (here is a ball cutter), Prod is the surface product to be processed, the distance from the tangent point G of the tool Ska to the surface product Prod to be processed to the axis OH and the normal vector of the surface product at point G and horizontal plane (will be relative to figure 1 The plane in the horizontal direction is regarded as the horizontal plane) and the angle β is inversely proportiona...

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): G05B19/416
CPCG05B19/416G05B2219/43001G05B2219/49007
Inventor 李铁骑
Owner 江西正皓瑞森精密智能制造股份有限公司