Abstract: The present invention discloses a boring machine which includes a table, a headstock unit which is installed on the table, a drive unit which drives the headstock unit to displace linearly along a first axis, a seat and a power unit. The seat provides for combining the headstock unit with the drive unit. The drive unit drives the headstock unit to displace linearly along the first axis, the power unit drives the headstock unit to rotate, and the power unit changes rotational speed by using the gnawing relation among main gears and speed-change gears in different sizes, so that the headstock unit can shift to different speed to cope with all kinds of machine processing.

Abstract: The invention discloses an automatic patent transaction system. The invention comprises a patent database, a member database, a match computing device, a share computing device, a non-member database, and a licensing and transacting computing device. The operation method of the invention also comprises a method for the participation of member and non-member, and a method for the participation of member only. Thus, the invention is able to increase the trade efficiency of the patent and reduce the trade cost of the patent.