Boring tool rest and system for machining of wind driven generator room and design method of boring tool system
A technology for wind power generators and boring tool holders, which is applied in the direction of boring heads, etc., and can solve problems such as difficult, complex, and irregular shapes in processing
Active Publication Date: 2015-10-14
江苏钢锐精密机械有限公司
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Problems solved by technology
[0002] as attached figure 1 , 2 , 5, and 6, the structure of a certain type of wind turbine nacelle in the prior art is relatively special, with irregular and complex shapes, large dimensions (length × width × height) 5087mm × 4200mm × 3731mm, and the weight of a single piece of blank is 59 Tons; In addition, the precision requirements are particularly high, the large aperture of Φ3200 / Φ2700 / Φ2690 / Φ840 is H7 fit tolerance, the concentricity and runout are within 0.05mm, and the finish is Ra1.6
It is extremely difficult to process by traditional means, and cannot guarantee the precision requirements of processing
Method used
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[0033] Introduce this technical scheme and its processing below in conjunction with accompanying drawing figure 1 , 2 Specific circumstances of said artifact:
[0034] The utility model relates to a boring tool holder for processing a wind power generator nacelle. The tool is driven by the power of the main shaft of a machine tool to rotate and cut a workpiece. The key is that the center guide shaft supports the tool's own weight, positions the center, and eliminates vibration and stress during cutting. Its material is made of nitrided steel (38CrMoA1) and then quenched and tempered and nitrided, and finally the key parts are ground. The part of the tool holder is made of aviation aluminum and assembled after processing. The key point is to select the thickness of the aviation aluminum plate (aviation forged aluminum 7050), the number of fastening points, and the distribution of the ribs to ensure that the tool holder has sufficient strength and precision. see attached ima...
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The invention provides a boring tool rest and system for machining of a wind driven generator room and a design method of the boring tool system. The boring tool rest comprises a guide shaft, a tool arm and boring tool combined modules. The top end of the guide shaft is perpendicularly connected to the middle of the tool arm from one side of the tool arm, so that a T-shaped portion is formed. The number of the boring tool combined modules is two, and the two boring tool combined modules are connected to the left tail end and the right tail end of the tool arm respectively. The tool arm comprises a main beam and auxiliary beams, wherein the auxiliary beams are detachably connected to the left end and the right end of the main beam. The guide shaft is connected to the middle of the main beam, and connected with two transverse beams of the main beam. Each auxiliary beam comprises two parallel transverse beams, wherein the two transverse beams are fixedly connected through one or more columns. Mechanisms which are connected with the boring tool combined modules are arranged at the left end and the right end of the main beam and on the auxiliary beams. The boring tool rest further comprises a coupling mechanism and an oil circuit, wherein the coupling mechanism is used for being connected with a main shaft of a machine tool. The boring tool system comprises the machine tool, a wind driven generator room frame, a guide shaft supporting base and the boring tool rest. According to the scheme, the problem that an extra-large hole with the diameter of being larger than 2.5m is difficult to machine can be solved.
Description
technical field [0001] The technical proposal belongs to the technical field of mechanical processing of important structural components related to wind turbines, and specifically relates to a boring tool holder for machining a wind turbine nacelle (base), a boring tool system and a design method thereof. Background technique [0002] as attached figure 1 , 2 , 5, and 6, the structure of a certain type of wind turbine nacelle in the prior art is relatively special, with irregular and complex shapes, large dimensions (length × width × height) 5087mm × 4200mm × 3731mm, and the weight of a single piece of blank is 59 Tons; In addition, the precision requirements are particularly high, the large aperture of Φ3200 / Φ2700 / Φ2690 / Φ840 has a fit tolerance of H7, the concentricity and runout are within 0.05mm, and the finish is Ra1.6. It is extremely difficult to process by traditional means, and the precision requirements for processing cannot be guaranteed. Contents of the invent...
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IPC IPC(8): B23B29/034
CPCB23B29/034
Inventor 刘木生杨涛
Owner 江苏钢锐精密机械有限公司