Ultrasonic vibration assisted spiral thread milling and grinding method

A technology of ultrasonic vibration and helical milling, which is applied in metal processing equipment, tangent devices, manufacturing tools, etc., can solve the problems of scrapped processing efficiency of parts and fast wear of taps, etc., to improve processing efficiency, reduce microcracks, and increase feed speed Effect

Inactive Publication Date: 2017-12-08
TSINGHUA UNIV
View PDF7 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of fast wear and tear of taps of hard, brittle and difficult-to-machine materials, broken parts and low processing efficiency, and to provide an ultrasonic vibration-assisted spiral milling thread method. Thread processing, this processing method can effectively reduce the cutting force during processing, improve thread processing quality and processing efficiency, and improve tool wear

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
  • Ultrasonic vibration assisted spiral thread milling and grinding method
  • Ultrasonic vibration assisted spiral thread milling and grinding method
  • Ultrasonic vibration assisted spiral thread milling and grinding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0039] Example: Carry out M10 thread processing on the silicon carbide particle reinforced aluminum matrix composite material with a volume fraction of 63%, and the processing thread accuracy requirement is 6H.

[0040] According to the requirements of the embodiment, it can be seen that the nominal diameter D of the M10 internal thread is 10mm, the pitch P is 1.5mm, and the minor diameter of the thread is D 1 8.6mm can be selected. The profiling grinding wheel on the tool head is electroplated with diamond abrasive grains with a particle size of 200 / 230, and the diameter of the profiling grinding wheel on the tool head is D s Choose 8.3mm, the diameter d of the tool rod in the middle of the tool is 4mm, the connection mode between the tool and the ultrasonic vibration tool holder adopts the conical sectional connection mode, the diameter of the central cooling hole in the tool axis is 2mm, and the vibration amplitude A at the end of the tool is kept at 5~ 7 μm. The profilin...

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

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides an ultrasonic vibration assisted spiral thread milling and grinding method, and belongs to the technical field of machining and tools. A profiling grinding wheel tool is used in the method, and the tool is mounted on a spindle of an ultrasonic machine tool by an ultrasonic vibration hilt. In the method, the axis of the tool is parallel to the center of the axis of a threaded hole, and a spiral milling mode which is formed by compounding four movements including rotation of the grinding wheel tool, revelation of the profiling grinding wheel tool around the axis of the threaded hole, axial feeding of the profiling grinding wheel tool and axial vibration of the profiling grinding wheel tool along with the ultrasonic vibration hilt is adopted. By the method, a cutting force of hard and crisp materials difficult to machine in a thread machining process can be reduced effectively, the circumstance that a screw tap is broken in a tapping process due to insufficient strength to cause scrapping of parts is avoided, the thread machining quality and machining efficiency are improved, and abrasion of the tool is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing and tools, and more specifically relates to an ultrasonic-assisted helical milling thread method. technical background [0002] Hard, brittle and difficult-to-process materials represented by optical glass, silicon carbide ceramics, and high volume fraction particle-reinforced metal matrix composites are widely used in aerospace, optical components, automobiles, and electronic packaging due to their excellent physical, chemical, and mechanical properties. field. Threaded connection is a widely used method of connecting parts. However, for hard, brittle and difficult-to-machine materials, thread processing is very difficult due to the high brittleness and high hardness of the material itself. [0003] At present, the processing methods of threaded parts mainly include tap tapping and milling. For materials with high hardness and high brittleness, the high-speed steel taps and cement...

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): B23G1/36B23G1/44
CPCB23G1/36B23G1/44
Inventor 张建富冯平法查慧婷郁鼎文吴志军
Owner TSINGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap