Drilling equipment for machining circumferential normal hole of pipe fitting

Abstract

The invention discloses drilling equipment for machining a circumferential normal hole of pipe fitting. A first lifting module, a drilling unit body and a plurality of drill bits are arranged in an upper base frame, so that primary motion and feed motion can be achieved simultaneously, that is, a plurality of normal holes in the axial direction of the pipe fitting can be machined in the circumferential surface of the pipe fitting at one time, and the number of the normal holes can be controlled through the number of the configured drill bits; moreover, the pipe fitting can be borne and locatedby arranging a lower base frame and a radial positioning element arranged on the top surface of the lower base frame, and the situation that the symmetry degree of the pipe fitting is too poor and large deflection is generated in the machining process is avoided; and in this way, the machining quality and the machining size are guaranteed while the pipe fitting machining efficiency is guaranteed,and the drilling equipment is quite suitable for circumferential drilling of the pipe fitting and is particularly suitable for machining the pipe fitting with large specification and large length-to-diameter ratio.

Description

technical field [0001] The invention relates to the technical field of machining equipment, in particular to a drilling equipment used for machining normal holes on the peripheral surface of pipe fittings. Background technique [0002] Pipe parts are widely used in all walks of life, such as conduit parts required by engines, drainage pipes required in daily life, etc. In actual use, it is often necessary to process normal holes on the circumference of pipe fittings according to actual needs, so as to facilitate ventilation , Drainage, etc. [0003] In the existing drilling method, the pipe fittings are often placed in drilling machines, ironing machines and other equipment for drilling, but the hole processing efficiency of this method is low. If the surface of the pipe fittings needs to be processed in large quantities, the The processing speed is too slow, which will greatly increase the processing cost of the enterprise; now there are some special equipment that can pro...

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Problems solved by technology

[0003] In the existing drilling method, the pipe fittings are often placed in drilling machines, ironing machines and other equipment for drilling, but the hole processing efficiency of this method is low. If the surface of the pipe fittings needs to be processed in large quantities, the The processing speed is too slow, which will greatly increase the processing cost of the enterprise; now there are some special equipment that can process multiple normal holes in one clamping, but such equipment is often clamped by setting rotatable jaws at the first and last ends of the pipe Due to the lack of support for the pipe fittings at the bottom, this clamping method can only process pipe fittings with small aspect ratio (length / diameter ratio<4), small size (diameter D<200mm) pipe fittings, if the pipe fittings are larger in size (diameter D ≥200mm) or pipe fittings with a large length-to-diameter ratio (length / diameter ratio ≥4), during processing, the jaws cannot provide effective support to damage the equipment, or the pipe fittings are too long to cause large deflection during processing. Especially in the middle section of pipe fittings, resulting in the failure to achieve the desired processing effect

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