Vertical type deep hole drill numerical control machine tool

Abstract

The invention discloses a vertical type deep hole drill numerical control machine tool. The vertical type deep hole drill numerical control machine tool comprises a machine tool bed, a workbench, a stand column, a drilling device, a driving device and a guiding and positioning sleeve device; the workbench is arranged on the machine tool bed, is movably connected with the machine tool bed through a transmission mechanism and is used for fixing a workpiece; the lower end of the stand column is fixedly connected to the machine tool bed; the drilling device is installed at the upper end of the stand column and located above the workbench and used for drilling the workpiece; the driving device comprises a lifting driving assembly which is used for driving the drilling device to move up and down, a drilling driving assembly which is used for driving a drill bit to rotate and a horizontal driving assembly which is used for driving the workbench to horizontally move front, back, left and right; and the guiding and positioning sleeve device is connected to one side of the drilling device and has guiding and positioning effects on the drill bit, and a guiding and positioning sleeve in the guiding and positioning sleeve device is rotationally connected with the drilling device. Therefore, the stability of the drill bit and the machining precision in the drilling process are guaranteed, meanwhile, the space for replacing the guiding and positioning sleeve is larger, and the operation is more convenient.

Description

technical field [0001] The invention relates to the technical field of numerical control processing equipment, in particular to a vertical deep hole drilling numerical control machine tool. Background technique [0002] At present, CNC machine tools are more and more applied to manufacturers. For example, CNC drilling machines are widely used in mold manufacturing and processing, especially for deep holes on plastic products (in mechanical processing, holes with a ratio of hole depth to hole diameter greater than 6 are usually called deep holes), because of the difference between the hole depth and hole diameter The ratio is relatively large, the requirements for machining accuracy are high, and the requirements for the strength of drilling tools are also high, so a dedicated CNC drilling machine is particularly important. In the prior art, there are two processing methods for this deep hole drilling, one is horizontal processing, and the other is vertical processing. Howe...

AI Technical Summary

Problems solved by technology

However, the disadvantage of horizontal machining is that the position of the workpiece is required to be installed very high, and an additional positioning device is required for positioning; moreover, it is very troublesome to align the drill bit with the workpiece. Once a deviation occurs, the processed hole will not meet the requirements. ; In addition, the drill bit vibrates under the action of gravity, which affects the machining accuracy

Therefore, the more common way is vertical processing, but it still has the following disadvantages in the prior art: due to the long length of the drill bit, the end of the drill bit is prone to shaking and deformation when rotating at high speed. Therefore, on the one hand, the processed holes The precision is not high, and the processing requirements cannot be met. On the other hand, the drill bit is easy to break and has a low service life.

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