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Classification of drill machines


Classification of drill machines


Drilling machine refers to the machine tool which mainly uses the drill bit to machine holes in the workpiece. Usually the bit rotation is the main movement, the drill bit moves axially for the feed movement. Drilling machine structure is simple, relatively low machining accuracy, drilling through holes, blind holes, the replacement of special tools, can be expanded, countersinking, reaming or tapping and other processing. The workpiece does not move during machining, the tool moves, aligns the tool center to the center of the hole, and rotates the tool (main motion). Drilling machine is characterized by fixed workpiece, the tool to do rotary motion.
Drilling machine is divided into radial drilling machine, bench drilling machine, vertical drilling machine referred to as radial drilling, bench drill, vertical drilling, various types of drill structure and use.
Bench drill: is a small drilling equipment, the general processing range of 25MM in the following general height is also 1.5 meters. Most of the height of 1 meter. More work on the work surface, power transmission for the belt drive. Is a large-scale drilling in preparation for the general processing range of 25MM or more, the height of 1.5 meters in general.General put on the ground work.Power transmission for the gear transmission.Rocking drill: is a drill a large drilling equipment, Which is characterized by a relatively long arm, the general length of 0.7 meters 1 m, 1.3 m, 1.6 m and larger.That drill machine column from the spindle centerline size is relatively large, adjustable, bench drill and vertical drilling are generally the same Not for this function. As for the rocker drilling he is suitable for adding large size in the workpiece, the processing capacity is generally below 60MM. Power transmission for the gear transmission mode.

The use of drilling
Drilling machine is a versatile machine tool with wide application, which can process parts such as drilling, reaming, reaming, countersinking and tapping. In the drill with the process equipment, you can also boring, drilling machine with universal table can also be split drilling, reaming, reaming. The basic classification Drilling mainly in the workpiece on the hole processing (such as drilling, reaming, reaming, tapping, countersinking, etc.) machine large bed workshop bed. Machinery manufacturing and a variety of repair plant essential equipment. According to the purpose and structure can be divided into the following types of vertical drilling machine table and the spindle box can be vertical movement in the column for the processing of small and medium-sized workpiece. Bench drilling machine referred to as bench drill. A small vertical drilling machine, the maximum diameter of 12 to 15 mm drilling, bench mounted on the use, mostly manual drilling, commonly used to process small holes and other small parts. Radial drilling machine spindle box can be moved on the rocker arm, rocker can rotate and lift, the workpiece is fixed, suitable for processing large and heavy and porous parts, widely used in machinery manufacturing. Deep Hole Drilling Specialized machines for deep drilling of holes deeper than diameters such as barrels, barrels and machine spindles. To facilitate the removal of chips and to avoid machine tools being too large, Horizontal layout, standing coolant vertical drilling machine conveying device (from the tool to enter the coolant to the cutting site) and the cycle of chip removal devices. Center hole drilling machine for processing shaft parts at both ends of the center hole. Milling and drilling machine table can be vertical and horizontal movement, drilling axis vertical arrangement, can carry out milling of the drilling machine. Horizontal drilling machine spindle horizontal arrangement, the spindle box can be moved vertically drilling machine.


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