公开(公告)号：US11766799B2

公开(公告)日：2023-09-26

申请号：US17082881

申请日：2020-10-28

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Fuji Wang ,  Shen Qiu ,  Rao Fu ,  Boyu Zhang ,  Meng Zhao ,  Wei Liu ,  Jianwei Ma

IPC: B26D7/18 ,  B26F1/16 ,  B26D7/26

CPC classification number: B26D7/1863 ,  B26F1/16 ,  B26D7/2614

Abstract: Multi-adaptive fast loading attached air-cooled dust removal equipment is disclosed. The equipment is mainly composed of five parts: a spindle clamping mechanism, a link mechanism, a bearing connecting mechanism, an axial telescopic mechanism and a dust treatment mechanism. The equipment is connected with a tool holder through an axial connecting mechanism and installed on a machine tool. The axial telescopic mechanism forms a cavity with a processing surface, the gas flow generated by a negative pressure vacuum cleaner forms negative pressure in the cavity, and the telescopic mechanism is fixed to a machine tool spindle housing through the link mechanism to prevent the rotation of the spindle from driving the equipment to rotate and interfere with a workpiece, finally realizing rapid collection and treatment of chips.

公开(公告)号：US10751810B2

公开(公告)日：2020-08-25

申请号：US16465266

申请日：2018-05-10

Applicant: Dalian University of Technology

Inventor： Fuji Wang ,  Zhenyuan Jia ,  Meng Zhao ,  Yu Bai ,  De Cheng ,  Chong Zhang

IPC: B23B51/02

Abstract: A vertical-edge double-step sawtooth cutter for preparing high-quality holes of composite material and thereof hybrid stack structure, and has three parts which are a major cutting edge region A, a minor cutting edge region B and a shank region C. The minor cutting edge region B comprises a step vertical-edge region D and a sawtooth cutting region E. This has the step structure and the sawtooth structure which is distributed in the first step, has a recutting function at the inlet and a reverse cutting function at the outlet in the direction opposite to the main cutting motion. The cutter has the vertical edge structure distributed in the second step, and the angle of the second step is a negative value, thereby realizing chip breaking and crushing, reducing scratch to the upper-layer composite material and metal hole walls.