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An Improved Auxiliary Clamping Mechanism for Five-Axis Rotary Machining of Blade Profiles

A technology of blade and top tightness, which is applied in the direction of metal processing machinery parts, metal processing equipment, manufacturing tools, etc., can solve problems such as easy to leave obvious vibration lines on the processing surface, affect the milling efficiency of the blade, and the blade body is easy to shake, etc., to achieve improved Effects of surface quality, increased rigidity, and reduction in machining time

Active Publication Date: 2011-12-21
WUXI TURBINE BLADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when this processing method is used to process aluminum alloy large blades, because the aluminum alloy large blades are thinner, the thinnest part is only 2mm to 3mm, and due to material properties, the overall rigidity of the blades is very poor, and the five-axis rotation Milling only clamps the two ends, and the middle part of the blade is suspended, so it is easy to produce milling deformation when processing the profile, the blade body is also easy to shake, and the processing surface is easy to leave obvious vibration marks
Therefore, in order to obtain better quality, we can only reduce the amount of cutting and tool feed, so as to eliminate the impact of insufficient rigidity of the blade on processing, but this will seriously affect the milling efficiency of the blade

Method used

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  • An Improved Auxiliary Clamping Mechanism for Five-Axis Rotary Machining of Blade Profiles
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  • An Improved Auxiliary Clamping Mechanism for Five-Axis Rotary Machining of Blade Profiles

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Embodiment Construction

[0011] See figure 1 , figure 2 , image 3 and Figure 4 , the present invention includes a bottom plate 6, a hinge plate 1 and a positioning block 2 are installed on both sides of the bottom plate 6, and a spring clamping device 3 is installed on the bottom plate 6. There are horizontal sliding grooves 11 on both sides of the bottom plate 6; the hinge plate 1 and the positioning block 2 are installed in the horizontal sliding groove 11; the spring tensioning device 3 is provided with multiple; the spring tensioning device 3 is fixed on the bottom plate 6 by screws. Inside the hole 7; the ejector rod 8 is installed in the spring tightening device 3; the spring 9 is embedded between the bottom of the ejector rod 8 and the spring tightening device 3; the ejector rod 8 is fixed to the spring tightening device 3 through the side tightening screw 5 There is a threaded hole 10 on the top of the ejector rod 8; a jacking screw 4 is installed in the threaded hole 10; a corresponding...

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Abstract

The invention provides an improved auxiliary clamping mechanism for five-axis rotary machining blade profiles. It can effectively strengthen the rigidity of the large aluminum alloy blade during the rotary milling process, greatly reduce the deformation of the surface milling, and improve the processing quality of the blade surface. It includes a bottom plate, and the feature is that hinge pressing plates and positioning blocks are installed on both sides of the bottom plate, and a spring tightening device is installed on the bottom plate.

Description

(1) Technical field [0001] The invention relates to auxiliary process equipment for machining blade profiles, in particular to an improved auxiliary clamping mechanism for five-axis rotary machining of blade profiles. (2) Background technology [0002] The blade surface is a kind of free curved surface. During CNC machining, the blade root and crown are generally clamped and processed by five-axis rotary milling. This method has high processing efficiency, good precision, and good consistency of the inner back arc of the blade. It is widely used in machining blade profiles. However, when this processing method is used to process aluminum alloy large blades, because the aluminum alloy large blades are thinner, the thinnest part is only 2mm to 3mm, and due to material properties, the overall rigidity of the blades is very poor, and the five-axis rotation Milling only clamps the two ends, and the middle part of the blade is suspended, so it is easy to produce milling deformati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q3/00B23C9/00
Inventor 庞韵华刘永骏范菲徐大懋
Owner WUXI TURBINE BLADE
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