An unsupported boring and milling device

Abstract

The invention provides a hole boring and milling device without a support. A vibration reduction universal joint and a cooling liquid inlet are connected to a shaft rod, the cooling liquid inlet is communicated with a boring and milling cutter part through a cooling liquid channel, positioning sliding sleeves are installed on the two sides of the boring and milling cutter respectively and internally provided with expansion sleeves, and bearings are installed between the positioning sliding sleeves and the shaft rod. The hole boring and milling device can be applied to field operation after a workpiece is drilled, and has the advantages of being capable of achieving automatic centering and positioning and automatic cooling, short in cutter feeding time and high in efficiency. The hole boring and milling device can replace a broach and a thread manual reamer, be used for field operation and improve the production quality and the hole boring and milling efficiency. The hole boring and milling device is suitable for being used as a hole boring and milling tool in the machining field.

Description

technical field [0001] The invention proposes an unsupported boring and milling device applied in the field of mechanical processing. Background technique [0002] In offshore engineering projects, drilling platforms, shipbuilding, ship maintenance, machining, main engine positioning milling holes, gearbox positioning milling holes, thrust bearing positioning milling holes, rudder bearing positioning milling holes, steering gear positioning milling holes, shafting method Blue bolt positioning and milling is the main processing purpose. Usually, BB5000 boring bar machine is used. The disadvantage is that each hole has to go through support positioning, electric welding positioning, hole center positioning, upper knife, smooth knife plane, cooling, dismantling, cleaning, and tedious time. The long-term efficiency is low, and the dimensional finish in the hole is uncontrollable. [0003] When using a broach to mill holes mechanically, the disadvantages are: each hole has to pa...

AI Technical Summary

Problems solved by technology

[0002] In offshore engineering projects, drilling platforms, shipbuilding, ship maintenance, machining, main engine positioning milling holes, gearbox positioning milling holes, thrust bearing positioning milling holes, rudder bearing positioning milling holes, steering gear positioning milling holes, shafting method Blue bolt positioning milling is the main processing purpose, usually using BB5000 boring bar machine, the disadvantage is that each hole has to go through support positioning, electric welding positioning, hole center positioning, upper knife, smooth knife plane, cooling, dismantling, cleaning, tedious time Long-term efficiency is low, and the size and finish of the hole are uncontrollable

[0003] When using a broach to mill holes mechanically, the disadvantages are: each hole has to pass through the same group of knives, and there are often single-knife misalignment, hole deviation, knives fried in the hole, quality knives often have pull marks in the hole, and the finish is not good , it is difficult to ensure safety if the tie rod breaks

[0005] When using a manual reamer, it is necessary to align the hole, manually ream the hole, cool, and penetrate the slag. The operation is cumbersome, the time is long, the efficiency is low, the tool wear is large, and the quality is affected. The tool often has scratches in the hole and the smoothness and poor cylindricity

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