Provided is an automatic chamfering machine for chamfering workpieces, comprising: a feed inlet, a linear guide, a positioning mechanism, a working platform, an automatic grasping mechanism, a grinding stick and an outlet. One end of the linear guide is connected to the feed inlet and the other end of the linear guide is connected to the outlet; the positioning mechanism and the working platform are arranged on the linear guide. The workpieces enter the linear guide from the feed inlet and pass through the positioning mechanism, the positioning mechanism performs a position alignment calibration to the workpieces. The automatic grasping mechanism grasps the workpieces after the position alignment calibration to the working platform. The grinding stick chamfers the workpieces on the working platform. The workpieces after chamfering are discharged through the outlet along with the linear guide. A chamfering method using the automatic chamfering machine is further provided.

A device for removing burrs from bolt holes of an aluminum alloy wheel is composed of a frame, a support plate, clamping guide rails, clamping motors, clamping sliders, support rods, clamping wheels, racks, gears, a brush disc, a support sleeve, a feed slide, guide pillars, a feed linear motor, a pitch adjustment linear motor, a conical pitch head, horizontal push rods, sliders, springs, burr brush drive motors and burr brushes. The device can meet the requirements of an automatic production line and can be used for automatically removing burrs from the inner walls of bolt hole countersinks. The device has certain flexibility and can adjust pitch diameter, can be used for removing burrs from bolt hole countersinks having different diameters, and is easy to manufacture, economical, practical and convenient to operate.

The present application discloses an exchanging double-station wheel burr removing device, comprising an exchange system, a left burr brushing system, clamping drive systems, a right burr brushing system and the like. The exchanging double-station wheel burr removing device may be used for simultaneously removing burrs on back cavities of two wheels and majorly removing burrs at roots and corners of flanges and rims, and is very high in production efficiency, and simultaneously has the characteristics of high automation degree, advanced process, strong generality and high safety and stability.

A rectangular glass substrate has a front surface, a back surface, four side surfaces, and eight chamfered surfaces, and a thickness of at least 6 mm. A first curved surface along the edge line between the front surface and the chamfered surface disposed adjacent thereto has an average gradient of up to 25% in a range from the front surface to a position of 50 m below the front surface when the substrate is rested horizontal with the front surface facing upward. A second curved surface along the edge line between at least one of four side surfaces and the chamfered surface disposed adjacent to the front surface has an average gradient of at least 30% in a range from the at least one side surface to a position of 50 m below the at least one side surface when the substrate is rested horizontal with the at least one side surface facing upward.

An edge polishing system with an edge alignment function for plates, including an edge polishing machine and a plate feeding platform. The plate feeding platform includes a frame assembly, a conveyor belt mechanism, a lifting mechanism, a blocking mechanism and a plate pressing mechanism. The frame assembly includes a movable frame and a fixed frame articulated with the movable frame. The conveyor belt mechanism is arranged on the movable frame. The lifting mechanism is arranged between the movable frame and the fixed frame. The blocking mechanism is arranged on an end of the movable frame. The plate pressing mechanism is arranged above the conveyor belt mechanism.

An edge polishing system with an edge alignment function for plates, including an edge polishing machine and a plate feeding platform. The plate feeding platform includes a frame assembly, a conveyor belt mechanism, a lifting mechanism, a blocking mechanism and a plate pressing mechanism. The frame assembly includes a movable frame and a fixed frame articulated with the movable frame. The conveyor belt mechanism is arranged on the movable frame. The lifting mechanism is arranged between the movable frame and the fixed frame. The blocking mechanism is arranged on an end of the movable frame. The plate pressing mechanism is arranged above the conveyor belt mechanism.