METHODS FOR ONLINE MONITORING AND SUPPRESSION OF CHATTER IN DEEP HOLE BORING PROCESS

WIPO Patent Application WO/2020/143203

A1

Disclosed is a method for online monitoring of chatter in a deep hole boring process. The method for monitoring and suppressing chatter comprises: building a system for online monitoring of a deep hole boring process; building a boring process dynamic model for a floating boring tool; establishing relationships between drive motor current signals and dynamic characteristics of the boring process; determining states of the system at various future time points according to known inputs from outside the system, establishing relationships between external input/output variables and internal state variables by describing the state variables and solving for solutions thereof; and comparing a chatter signal with a normal process signal to realize online monitoring of early stage chatter. The methods for online monitoring and suppression enable real-time monitoring and suppression of chatter in a deep hole boring process, thereby improving the processing precision of workpieces, and reducing a rejection rate of the workpieces.

LIU ZHIBING (CN)
CHEN CHE (CN)
PAN JINQIU (CN)
LIU SHUYAO (CN)
WANG XIBIN (CN)
JIAO LI (CN)
LIANG ZHIQIANG (CN)
XIE LIJING (CN)
WANG YAOWU (CN)
FENG CAIXIA (CN)

PCT/CN2019/095846

July 16, 2020

July 12, 2019

Click for automatic bibliography generation  

BEIJING INSTITUTE TECH (CN)

B23Q17/00; B23B47/00

CN109746762A	2019-05-14
CN102490086A	2012-06-13
CN106802630A	2017-06-06
CN107457609A	2017-12-12
JPH11188577A	1999-07-13
JP2011154588A	2011-08-11

JJS INTELLECTUAL PROPERTY AGENCY LTD. (CN)

View/Download PDF      PDF Help

Previous Patent: FLEXIBLE DISPLAY DEVICE

Next Patent: CALIBRATION TOOLING, AND DEVICE AND METHOD FOR MEASURING BLIND MATING CONNECTOR INTERFITTING GAP