Drilling device

Abstract

The invention relates to a drilling device which comprises a machine frame. A workpiece clamping device is installed on the machine frame, the machine frame is further provided with drilling device bodies located on the periphery of the workpiece clamping device, each drilling device body comprises an installation base and a drilling working head, a guide groove is formed in each installation base, a sliding block matched with the corresponding guide groove is mounted on each drilling working head, a feeding driving mechanism is arranged between each installation base and the corresponding sliding block, each drilling working head is connected with an air cooling device for cooling a drill bit, air cooling is adopted for cooling the drill bit, an existing air source of a factory can be adopted for the air cooling devices, equipment investment is reduced, and the cooling effect can be effectively guaranteed; and the positions of the drilling working heads can be adjusted through an annular guide groove and a guide block, so that the drilling angle can be adjusted conveniently.

Description

technical field [0001] The present invention relates to a drilling device. Background technique [0002] In the prior art, when deep hole processing is carried out, gun drills are mostly used. The gun drill bits have a hollow structure, and high-pressure cooling oil flows into the center hole at the tail of the drill shank. Under the action of high pressure, the drill chips are discharged along the V-shaped groove. At the same time, the friction loss between the tool and the workpiece is reduced, and the drilling accuracy is improved. However, the existing high-pressure cooling oil cooling method still has defects such as complicated equipment structure. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a drilling device which can effectively ensure the cooling efficiency and facilitate the adjustment of the drilling position. [0004] In order to solve the above technical problems, the technical solution of the pr...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, gun drills are often used for deep hole machining. The gun drill bits are hollow, and high-pressure cooling oil flows in from the center hole at the tail of the drill shank. Under high pressure, the drill chips are discharged from the workpiece along the V-shaped groove and taken away Cutting heat, at the same time reduces the friction loss between the tool and the workpiece, and improves the drilling accuracy. However, the existing high-pressure cooling oil cooling method still has defects such as complex equipment structure.

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