Pneumatic clamping drilling tool

Abstract

The invention discloses a pneumatic clamping type drilling tool and relates to the technical field of auxiliary drilling equipment. The pneumatic clamping type drilling tool comprises a lower housing, two sets of clamping and positioning mechanisms, a drill plate, an air cylinder and a lower driving lever. The rear of the drill plate is hinged to a connecting piece of a supporting plate while the front of the same is provided with two openings. Front ends of two supporting seats are hinged to two opening locking mechanisms. The drill plate is provided with drill bushings, two rectangular through holes are formed in positions, corresponding to two pressing pieces, of the middle of the drill plate, and lower end faces of the rectangular through holes are higher than or equal to those of the pressing pieces. Vertical positioning plates are arranged in the rear of the supporting seats and above the housing. The hinged drill plate is convenient to clean and replace, the positioning plates are accurate in positioning, and the drill plate provided with the rectangular through holes is fastened through the locking mechanisms after being covered, so that the drill plate is enabled to be closer to the surface of a work piece, and drilling accuracy can be guaranteed. The pneumatic clamping type drilling tool has the advantages of being compact in structure, accurate in positioning, high in processing accuracy and applicable to processing of products of different specifications.

Description

technical field

[0001] The invention relates to the technical field of drilling auxiliary equipment. Background technique

[0002] Drilling operations are often required during the processing of freight train spare parts. The process involves multiple drilling processes. For some large parts, it is necessary to lift the parts to the processing station with the help of special lifting tools for drilling. The hole diameter is large and the material thickness is large, so generally only one hole can be processed at a time, but for some small parts, the hole diameter is small, the material thickness is small, and the processing cycle is short. If the cycle is shorter than the clamping and positioning time, then the production efficiency will be greatly reduced, resulting in a waste of equipment and human resources. Compared with the drilling of freight train parts, such as the front and rear wear plates of the plate base, the current method is to install a vise on a vertical mi...

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