公开(公告)号：US20210008645A1

公开(公告)日：2021-01-14

申请号：US16926785

申请日：2020-07-13

申请人： Chongqing Vocational Institute of Engineering

发明人： Hao Xu ,  Jiang Liu ,  Yifei Xu

IPC分类号： B23B41/12 ,  B23B47/28 ,  B23Q3/155

摘要： The invention relates to a double-sided drilling fixture for die-forged pistons and a double-sided drilling process thereof. It overcomes the defects of low efficiency and accuracy of the double-sided drilling operation for die-forged pistons in the prior art. The invention comprises a die-forged piston, a fixture base assembly, an upper load-resisting assembly and a lower expansion-resisting assembly. The upper load-resisting assembly is installed on the fixture base assembly and disposed above the die-forged piston. A fixation base, whose upper surface shape is the same as internal surface shape of the die-forged piston, is installed above the fixture base assembly. The die-forged piston is sleeved on the fixation base. The invention achieves simultaneous drilling on both sides of the two rear skirt surfaces of die-forged pistons and delivers quick clamping and automatic fixation, significantly reducing the difficulty in the assembly of drilling plate and workpiece and increasing the alignment accuracy.

公开(公告)号：US11179607B1

公开(公告)日：2021-11-23

申请号：US17235897

申请日：2021-04-20

申请人： Chongqing Vocational Institute of Engineering ,  Chongqing University ,  Hao Xu

发明人： Hao Xu ,  Jiashun He ,  Jiang Liu ,  Yifei Xu ,  Fusheng Pan

IPC分类号： A63B47/02 ,  B65G67/02

摘要： The present invention relates to a ball picking robot, comprising a walking mechanism, a ball picking mechanism, a ball pushing mechanism and a ball storage mechanism. The ball picking mechanism comprises a ball picking basket, an air cylinder used for driving the ball picking basket to move up and down, an air storage tank used for providing an air source for the air cylinder, a solenoid valve arranged at the air outlet of the air storage tank, a micro air pump connected to the air storage tank, and a shielding assembly arranged at an opening in the rear end of the ball picking basket. A first gear is mounted at the input end of the micro air pump. The ball pushing mechanism comprises a rotary ball discharging assembly, comprising an either-rotation motor, a rotary impeller connected to a first output shaft of the either-rotation motor through a belt assembly.

公开(公告)号：US11318544B2

公开(公告)日：2022-05-03

申请号：US16926785

申请日：2020-07-13

申请人： Chongqing Vocational Institute of Engineering

发明人： Hao Xu ,  Jiang Liu ,  Yifei Xu

IPC分类号： B23B39/22 ,  B23B41/12 ,  B23B31/16

摘要： The invention relates to a double-sided drilling fixture for die-forged pistons and a double-sided drilling process thereof. It overcomes the defects of low efficiency and accuracy of the double-sided drilling operation for die-forged pistons in the prior art. The invention comprises a die-forged piston, a fixture base assembly, an upper load-resisting assembly and a lower expansion-resisting assembly. The upper load-resisting assembly is installed on the fixture base assembly and disposed above the die-forged piston. A fixation base, whose upper surface shape is the same as internal surface shape of the die-forged piston, is installed above the fixture base assembly. The die-forged piston is sleeved on the fixation base. The invention achieves simultaneous drilling on both sides of the two rear skirt surfaces of die-forged pistons and delivers quick clamping and automatic fixation, significantly reducing the difficulty in the assembly of drilling plate and workpiece and increasing the alignment accuracy.