Deep hole machining process

Abstract

The invention discloses a deep hole machining process. The deep hole machining process includes: step one, drilling: machining deep holes to be machined on a numerical control machine tool by a connecting rod drill; step two, broaching: replacing a cutting drill of the connecting rod drill in the step one with a broach drill, and then machining drilled holes obtained in the step one by the numerical control machine tool; and step three, reaming: machining holes obtained in the step two on the numerical control machine tool by a long-rod reamer. The connecting rod drill comprises the cutting drill, a first handle, and a first connecting rod mounted between the cutting drill and the first handle coaxially. The long-rod reamer comprises a reamer head, a second handle, and a second connecting rod mounted between the reamer head and the second handle coaxially. The deep hole machining process is simple in steps, simple and convenient in actual operation, low in input cost, high in machining quality and quick in machining speed, and the problems that machining is inconvenient, actual operation is not easy to control, machining efficiency is low, machining precision is hard to guarantee and the like in the existing deep hole machining process by drilling prior to boring can be solved effectively.

Description

technical field [0001] The invention belongs to the technical field of deep hole processing, and in particular relates to a deep hole processing technology. Background technique [0002] During the manufacturing process of the shearer, the cooling system of the rocker arm of the shearer adopts a detachable movable structure, and the water intake of the cooling system enters from two deep holes with the same structure on the ear hole side of the rocker arm. The diameter of the above two deep holes is Φ65mm and the hole depth is 625mm. The distance between the upper end surface of the above two deep holes and the outer end surface of the rocker arm shell of the coal mining machine is 545mm. The machining depth of the hole is 80mm. In actual use, the hole surfaces of the above two deep holes not only need to be sealed, but also need to be connected with the cooler assembly located at the front side thereof. In actual processing, the hole accuracy of the above two deep holes i...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a deep hole processing technology in view of the deficiencies in the above-mentioned prior art. Solve the problems existing in the existing deep hole processing technology of drilling first and then boring, such as inconvenient processing, difficult control of actual operation, low processing efficiency, and difficulty in guaranteeing processing accuracy, etc.

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