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

A method of side milling error tool position planning based on non-developable ruled surface

A tool position and side milling technology, which is applied in the direction of milling machine equipment, milling machine equipment details, automatic control devices, etc., can solve the problems that the tool movement deviates from the ideal track, the wear of the transmission chain actuator, and the failure to meet the processing requirements, etc., to reduce the processing time. The effect of error, smooth processing process and efficient processing

Inactive Publication Date: 2018-03-09
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different directions of the normal vectors of the points on the straight generatrix, as long as a tool with a non-zero radius is used for side milling, overcut and undercut errors will inevitably occur, and during the machining process, due to the vibration, vibration, and There is a gap in the drive chain and the wear of the actuator will cause the tool movement to deviate from the ideal trajectory, resulting in machining errors. For non-developable ruled surfaces, these errors are fatal. scrapped parts

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
  • A method of side milling error tool position planning based on non-developable ruled surface
  • A method of side milling error tool position planning based on non-developable ruled surface
  • A method of side milling error tool position planning based on non-developable ruled surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a side milling error compensation device based on a non-developable ruled surface includes a chucking plate 4, a workpiece 1, and a milling cutter 2 arranged above the workpiece 1 for side milling. On the chuck 4, it also includes a three-dimensional scanner 3, a microcomputer 11, a column 12 and a tool position compensation mechanism, and the tool position compensation mechanism is arranged below the chucking disc 4;

[0040] The tool position compensation mechanism includes: a first translation platform 5, a second translation platform 6, a first nut pair 7-1, a first lead screw 8-1, a second nut pair 7-2, a second lead screw 8- 2. The first servo motor 10 and the second servo motor 9; the first nut pair 7-1 is arranged under the first translation table 5, and the first lead screw 8-1 connects with the first nut pair 7-1 through balls. 1, the first lead screw 8-1 is connected to the output end of the first servo motor 10, the second nut pai...

Embodiment 2

[0044] Because the non-developable ruled surface is characterized by the different normal vector directions of points on the straight generatrix, any tool with a non-zero radius will have a theoretical error in side milling, and the tool envelope cannot be completely tangent to the design surface. For the side milling of this curved surface, surface approximation processing is used, such as figure 2 As shown, the tool position planning of non-developable ruled surface in side milling mainly includes: design surface S1, tool envelope surface S2, equidistant surface S3 of design surface, tool axis trajectory surface S4, milling cutter envelope surface and tool axis The trajectory surface is a pair of equidistant surfaces. According to the range invariance under isometric mapping in differential geometry, the range between the tool envelope surface and the design surface is equal to the range between the tool axis trajectory surface and the design surface equidistant surface , s...

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 relates to the field of machining, in particular to a side milling error compensation device based on a non-extended straight-line surface and a cutter spacing planning method of the side milling error compensation device. The side milling error compensation device comprises a clamping disc, a workpiece and a milling cutter arranged above the workpiece and used for side milling, and the workpiece is arranged on the clamping disc. The side milling error compensation device is characterized by further comprising a three-dimensional scanner, a microcomputer, a stand column and a cutter spacing compensation mechanism; the cutter spacing compensation mechanism is arranged below the clamping disc; a non-extended straight-line surface five-axis side milling cutter path is planned by adopting a four-point offset manner, whether interference exists or not is judged in real time in an online manner, online adjustment is performed according to the judging result, collision in the machining process is avoided while the machining error is reduced, and the purpose of rapid and efficient machining is achieved; and the generated cutter spacing is further optimized and completed in cooperation with the error compensation device, and the error is further lowered.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a method for planning a side milling error tool position based on a non-developable ruled surface. Background technique [0002] A non-developable ruled surface is formed by sweeping a straight generatrix along a wire, and is non-developable. Discrete the surface can obtain multiple straight lines with different directions on the surface. Due to the different directions of the normal vectors of the points on the straight generatrix, as long as a tool with a non-zero radius is used for side milling, overcut and undercut errors will inevitably occur, and during the machining process, due to the vibration, vibration, and There is a gap in the drive chain and the wear of the actuator will cause the tool movement to deviate from the ideal trajectory, resulting in machining errors. For non-developable ruled surfaces, these errors are fatal. Part scrapped. Contents of the inventi...

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 Patents(China)
IPC IPC(8): B23C3/16B23Q15/12
CPCB23C3/16B23Q15/12
Inventor 刘志兵严涛王东前王西彬闫正虎刘彪
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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