An alloy drill bit based on aerospace aviation deep hole machining and chip breaking internal cooling
CN224688033UActive Publication Date: 2026-08-28JIANGSU YONGGAO CUTTING TOOLS CO LTD
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Patent Information
- Application Number
- CN202522093649.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-09-29
AI Technical Summary
Technical Problem
[0003]然而现有的合金钻头大多存在着各种问题，例如在公告号CN216729728U所公开的一种用于深孔加工的内冷却合金钻头中，其虽然采用冷却油与水换热的内部冷却方式配合水淋外部冷却，有效确保在深孔加工中钻头的散热性能，提高使用寿命，但是在该技术方案以及目前大多数的合金钻头中，当前钻削工艺通常采用单侧高速旋转模式，即仅钻头或工件旋转，导致切削速度分布不均，尤其在加工钛合金等难切削材料时，单侧旋转难以实现最佳切屑厚度控制，进给速度通常被限制在一定范围内，且单侧旋转易引发切削热集中，迫使降低转速以保护刀具，进一步拖累效率
Benefits of technology
在本实用新型中通过设置驱动机构，进而通过驱动机构中主动伞齿轮带动工件传动伞齿轮、钻头传动伞齿轮啮合联动，使工件支撑盘、传动杆二者同轴反转，并通过限位槽和限位杆的设置使得传动杆在滑移的同时也能够与钻头传动伞齿轮同步转动，进而带动铣削钻头与工件抵接铣削，通过工件与钻头同步反向旋转，使切削速度矢量叠加，有效提升切削速度提升以及进给速度，且双向旋转避免了单侧热积累导致的降速补偿，缩短加工周期，同时同轴反转齿轮组实现双向力学平衡，抵消单侧旋转扭矩导致的轴线偏斜。
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Figure CN224688033U_ABST
Abstract
The utility model discloses a kind of broken chip inner cooling alloy drill bits based on aerospace aviation deep hole machining, including fixed seat, first supporting plate, second supporting plate, workpiece support disc, transmission rod, milling drill bit and driving mechanism, fixed seat is in the shape structure, vertically set, and fixed on external machine tool, first supporting plate is horizontally fixed in fixed seat bottom one end, second supporting plate is horizontally fixed in fixed seat top one end.The beneficial effects of the utility model are: in the utility model, by setting driving mechanism, and then by driving mechanism in driving pinion drive workpiece transmission bevel gear, drill bit transmission bevel gear meshing linkage, make workpiece support disc, transmission rod both coaxial reverse, and by the setting of limiting groove and limiting rod make that transmission rod can also rotate synchronously with drill bit transmission bevel gear while sliding, and then drive milling drill bit and workpiece abut milling, by workpiece and drill bit synchronous reverse rotation, make cutting speed vector superposition.
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