Mechanical machining positioning device

The invention discloses a mechanical machining positioning device. The device is characterized in that a clamping and positioning device and an automatic feeding device are sequentially arranged on the top of the workbench from left to right, two vertical columns are arranged on the left side and the right side of the top of a working table, the tops of the two vertical columns are fixedly connected through a cross beam, and a transverse double slide rail is arranged on the cross beam; a transverse sliding plate is slidably connected to the transverse double-sliding rail, and the output end ofthe transverse servo feeding motor on one side of the transverse beam is in transmission connection with the input end of the transverse sliding plate; the transverse sliding plate is provided with avertical double-sliding rail, and the vertical double-sliding rail is slidably connected with a longitudinal sliding plate; and the output end of the vertical servo feeding motor on one side of the transverse sliding plate is