Device for transversely drilling blind hole

Abstract

The invention discloses a device for transversely drilling a blind hole, and relates to the technical field of drilling tools. One end of an upper rod is rotationally connected with one end of a lower rod, and the upper rod and the lower rod can rotate relatively; at least one middle rod is fixed to the periphery of the lower rod; a gear set comprises a driving bevel gear and at least one driven bevel gear, the driving bevel gear coaxially and fixedly sleeves the periphery of the upper rod, the driven bevel gear coaxially sleeves the periphery of the middle rod, and the driven bevel gear is rotationally connected with the middle rod; the driving bevel gear is meshed with the periphery of the driven bevel gear, a drill bit is fixed to the middle of the driven bevel gear, and the drill bit and the driven bevel gear are coaxially arranged; the drill bit is used for facing the inner wall of a workpiece, a driving element can drive the upper rod to rotate and drive the driving bevel gear to rotate, and the driving bevel gear can drive the driven bevel gear and the drill bit to rotate; and a guide assembly is used for driving the drill bit to move in the direction close to or away from the inner wall of the workpiece. According to the device for transversely drilling the blind hole, the efficiency of drilling the blind hole can be improved, the structure is simple, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of drilling tools, in particular to a device for laterally drilling blind holes. Background technique [0002] With the increasing application of gas actuators in folding-wing cruise missiles, folding-wing unmanned aerial vehicles and other fields, the demand for products is showing a rapid growth trend. The key part of the gas actuator - the pressure cylinder, the processing of the small diameter deep blind hole inside is the key process of this part. In addition, the transverse blind hole of the cylinder block of the rock drill, the blind hole of the column head of the mining single hydraulic prop, and the blind hole of the excitation end of the engine rotor all need a more accurate and convenient processing method. [0003] There are two main ways to process blind holes at this stage: one is to use traditional mechanical processing methods such as drilling machines and grinders; the other is EDM. Tradit...

AI Technical Summary

Problems solved by technology

Traditional mechanical processing methods are sometimes powerless to process some blind holes, such as drilling blind holes inside cylindrical parts. Traditional mechanical processing methods use drilling machines for processing. If processing through holes, drilling machines are easy to do, but if processing non-through holes , it is necessary for the drill to penetrate into the part for processing. At this time, it is impossible for the drilling machine to realize this processing method. The reason is that: the processing position cannot be determined, and the drill cannot penetrate into the workpiece to achieve horizontal drilling; and the EDM There is a problem of electrode loss in the processing method, and it is difficult to accurately control the processing volume. At the same time, the establishment of the EDM model is very complicated, time-consuming and laborious, and the deviation is large

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