wholesale cnc drilling machine

CNC drilling machine is mainly used for drilling, reaming, reaming, tapping, and other processing. It is a digitally controlled drilling-based hole processing machine tool. Due to the development of machining centers, most CNC drilling machines have been replaced by machining centers. In the automotive, locomotive, shipbuilding, aerospace, and construction machinery industry; especially for ultra-long stacked plates, longitudinal beams, structural steel, tube-shaped parts, and another porous system Fuyuan into the sea of all kinds of large parts of drilling processing when the first choice.

mould cnc gantry drilling machine types

CNC drilling machine according to its layout type and functional characteristics can be divided into CNC vertical drilling machines, drilling center, CNC drilling machine for printed circuit board, CNC deep hole drilling machine and other large CNC drilling machine, etc.

✔️CNC Vertical Drilling Machine

CNC vertical drilling machine is developed on the basis of common vertical drilling machine. It can complete multiple processes such as drilling, reaming, reaming and tapping, and is suitable for medium and small batch production of parts with certain accuracy requirements for distance between holes.

CNC vertical drilling machine generally has two coordinates CNC "ten" type table. The machined parts can be clamped on the table for two coordinate movement (table left and right movement for x-coordinate, table front and back movement for y-coordinate), and the vertical movement of the spindle or spindle box with tool (Z-coordinate) can be numerical control, or non-numerical control. The former uses a 3-coordinate CNC system, while the latter can use a simpler 2-coordinate CNC system. The spindle speed change and tool change are not much different from those of ordinary vertical drilling machines, which are mostly manual. It is suitable for processing multi-hole parts with required hole pitch accuracy but not too high. Its CNC system is generally a point control system (there are also linear control CNC systems), belonging to the economic CNC, the price is cheap.

✔️Drilling center

Drilling center is based on the 3-coordinate CNC vertical drilling machine to increase the turret type tool magazine and automatic tool change mechanism, using stepless speed control spindle motor, can realize automatic change of spindle speed, can be drilling, expansion, reaming, countersinking, tapping and other hole processing processes, and can complete the contour control milling with linear and circular interpolation.

Since most small and medium-sized parts require several tools for machining (within 10 tools), adding an automatic tool changer and automatically changing the spindle speed at the same time can reduce labor intensity. Reduce the tool change time, both to improve the degree of automation of the machine tool, but also to improve labor productivity.

As the contour control CNC system instead of point control CNC system, can be carried out with linear and circular interpolation function of the milling process, more suitable for combined drilling and milling parts.

According to the principle of tool change and the different structure of the machine, the current drilling center is divided into single spindle type and multi-spindle type. The multi-spindle type tool change method is in the turret radial arrangement of 6 or 8 spindles, by the turret rotation to achieve spindle change and automatic tool change.

Due to the arrangement of multiple spindles in the turret, and the main drive, indexing, positioning and other mechanisms, so the turret head structure is complex and difficult to process, and due to size restrictions, the spindle rigidity is affected to a certain extent, and the position repeatability between the spindles is not ideal.

Because of some of the above problems of multi-spindle type drilling center, many manufacturers have developed single-spindle type drilling center. It automatically changes toolholders with various tools on the same spindle to achieve automatic tool change, and adopts turret type tool magazine to overcome the shortcomings of multi-spindle type. The following figure shows the domestic single spindle type drilling center.

✔️CNC Drilling Machine for Printed Circuit Board

CNC drilling machine for printed circuit boards is a special drilling machine tool used for processing printed circuit boards. Because of the small diameter and large number of holes in the printed wiring board, it usually comes with two, three or more high-speed drilling heads. The spindle rotation can be more than 20,000 rpm. It is suitable for drilling of double-sided and multi-layer boards.

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