Hole drill capable of enlarging drilling diameter

CN223492146UActive Publication Date: 2025-10-31HEBEI BOLAIWEI DIAMOND TOOLS CO LTD
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Patent Information

Application Number
CN202423024262.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-10-31
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing hole drills are used to drill holes of different diameters according to design requirements when manufacturing mechanical parts. The initial drilling may leave burrs or irregular hole walls, which may affect subsequent use.

Method used

Design a hole drill with an enlarged drilling diameter, including a hole drill body, an auxiliary frame, a support frame, a fixing plate, a driver, a coolant inlet, and a drilling assembly. The drilling assembly is made of high-strength diamond material and has a snap-fit ​​connection. By adjusting the drill bit, a suitable hole diameter can be selected to achieve drilling tasks with different hole diameters.

Benefits of technology

It improves the versatility and efficiency of the equipment, reduces the frequency of tool replacement, enhances drilling accuracy and stability, and ensures cutting performance and long service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223492146U_ABST
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Abstract

The utility model discloses a hole drill capable of enlarging the drilling diameter. The hole drill comprises a hole drill body, an auxiliary frame, a supporting frame, a fixing piece, a driver, a cooling liquid inlet and a drilling assembly. The utility model has the beneficial effects that by adjusting different combinations of the drilling ports, an operator can quickly select a proper aperture to adapt to different drilling tasks, the versatility of the equipment is improved, the requirements of different materials and processes are met, the drilling tasks of different apertures can be completed on the same equipment, the frequency of replacing tools is reduced, and the working efficiency is improved. All cutting tools of the drilling assembly are made of high-strength diamond materials, the drilling efficiency and precision are improved, the cutting face is easy to maintain and replace due to the clamping design between a connector and a diamond drilling tool, the cutting performance in long-term use is guaranteed, and the service life of the drilling assembly is prolonged. And through the arrangement of the supporting frame and the fixing piece, stress on equipment in the drilling process is reduced, extra stability is provided, and equipment damage and operation risks are reduced.
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