Drilling rig

Abstract

The invention discloses a drilling rig which comprises a bearing fixing plate, tapered roller bearings, an extension rod, a support plate, a slide rail, a slider, a bottom plate and a product holder. The product holder for fixing a product on the bottom plate is arranged on the bottom plate. The support plate is also disposed on the bottom plate. A slide rail fixing plate is disposed on the support plate. The longitudinal slide rail is arranged on the slide rail fixing plate. A slide way on the slider is exactly sleeved outside the slide rail and is capable of sliding along the slide rail. The bearing fixing plate is fixed on the slider. At least one pair of tapered roller bearings coaxially arranged in longitudinal symmetry is arranged on the bearing fixing plate. The upper end of the extension rod which can be fixedly connected with a drill bit is fixedly inserted into the corresponding tapered roller bearing. The drilling rig avoids deflection of the drill bit in longitudinal feeding and guarantees accurate drilling position. The tapered roller bearings in pairs fit with the extension rod to guarantee no deflection of the drill bit in drilling, and accordingly diameter accuracy and roundness of drilled holes are guaranteed.

Description

technical field [0001] The invention relates to a drilling device, in particular to a drilling jig. Background technique [0002] At present, when drilling holes on products, especially when drilling side holes, it is difficult to adjust, and when high precision is required, it is necessary to repeatedly move the drill up and down to align with the position to be drilled, which wastes time and at the same time , During the drilling process, the drill bit often deflects in the multi-function disc, which makes the diameter of the drilled hole too large and the roundness tolerance is too large. At the same time, because the drill bit is in the process of longitudinal feeding, the multi-function disc will deflect Phenomenon, making the drilling position not accurate enough. Contents of the invention [0003] In order to overcome the above-mentioned defects, the present invention provides a drilling jig, which can quickly and accurately locate and ensure precise drilling posit...

AI Technical Summary

Problems solved by technology

[0002] At present, when drilling holes on products, especially when drilling side holes, it is difficult to adjust, and when high precision is required, it is necessary to repeatedly move the drill up and down to align with the position to be drilled, which wastes time and at the same time , During the drilling process, the drill bit often yaws in the multi-function disc, which makes the diameter of the drilled hole too large and the roundness tolerance is too large. Phenomenon, making the drilling position not accurate enough

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