Takeuchi Y, Sakamoto M, Sata T. Automation of scraping works by a robot equipped with a CCD ling sensor and a contact detector \[J\].CIRP Annals-Manufacturing Technology,1988,37(1):489-492. [4] Hirotaka T, Ryuta Y, Akira K, et al. Development of an antuomatic scraping machine with recognition for bearing of scraped surfaces(3rd report): construction of automatic scraping machine\[J\]. Jpn Society for Precision Engnieering Supplement Contributed Papers,2005,71(3):358-362.