A polishing mechanism for blade inlet/exhaust edge
A polishing mechanism and exhaust edge technology, which is applied to surface polishing machine tools, grinding/polishing equipment, grinding machines, etc., can solve the problem of high technical level requirements for operators, uneven removal of intake/exhaust edges, and difficult dimensional accuracy. Control and other issues to achieve high repeatability, stable polishing process, and avoid deformation and damage
Inactive Publication Date: 2011-11-30
NORTHWESTERN POLYTECHNICAL UNIV
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[0006] In order to overcome the disadvantages of the prior art, such as uneven removal of the intake / exhaust edge, difficult control of dimensional accuracy, high requirements on the technical level of operators, high labor intensity and low work efficiency in the manual operation polishing process, the present invention provides A polishing mechanism for blade inlet / exhaust edge
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[0019] This embodiment is a polishing mechanism for the inlet / exhaust edge of the blade, which consists of a base 1 , an elastic clip 3 , a baffle 4 , a guide wheel 6 , a pin 8 and an abrasive belt 14 . The polishing mechanism is connected and fixed on the five-axis CNC machine tool through the screw hole at the tail end of the base body 1, and the blade is installed and fixed on the special rotary fixture for the blade at the same time.
[0020] see figure 1 , figure 2 , the present invention is used for the polishing mechanism of the inlet / exhaust edge of the blade, the function of the base body 1 is to install the fixed pin 8, the guide wheel 6, the elastic clip 3, and the baffle plate 4; The baffle plate 4 and the guide wheel 6 are fixed on the base body 1 through the pin 8, the elastic clip 3 is clamped on the installation outer circle of the baffle plate 4 by the elastic force of elastic deformation, and the guide wheel 6 provides support and guidance for the rotation ...
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The invention discloses a polishing mechanism for air inlet / outlet edges of blades. The mechanism comprises a substrate, an elastic clip, a baffle, a guide wheel and a pin bolt. The polishing mechanism is arranged on a five-axis numerical control machine through threaded holes at the rear end of the substrate, an abrasive belt is clamped on the air inlet / outlet edges of the blades through the elastic clip and baffle, automatic and even polishing is carried out on the allowances of the air inlet / outlet edges of the blades along the axial direction of the blades, the controllability is high in the polishing process, deformation and damage of the air inlet / outlet edges of the blades are prevented effectively in the polishing process, and a numerical control polishing method is used to replace a manually operated polishing method, thus improving the processing quality and surface precision of the air inlet / outlet edges of the blades of an engine, enhancing the pneumatic properties of the blades, increasing the working efficiency and greatly lowering the labor intensity. The polishing mechanism for air inlet / outlet edges of blades in the invention has a simple structure, and is easy toassemble, stable in the polishing machining process and high in repeatability.
Description
technical field [0001] The invention belongs to the field of aero-engine design and manufacture, and relates to engine blade processing and manufacturing technology, in particular to a polishing mechanism for blade inlet / exhaust edges. Background technique [0002] As the core component of the engine, the surface quality of the blade plays a decisive role in the performance of the engine. However, due to the requirements of the engine's high thrust-to-weight ratio and long life, higher requirements are placed on the accuracy of the blade surface quality. The inlet / exhaust edge is a key part in the working process of the engine blade, and its surface quality directly determines its performance and service life. [0003] Chinese patent 200610155853.8 discloses a five-coordinate self-adaptive blade polishing machine, which installs the blade to be polished on the blade fixture. It moves along three linear axes and two rotary axes under the control; the polishing machine can be...
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IPC IPC(8): B24B29/02B24B19/14
Inventor 张军锋史耀耀段继豪李小彪董婷
Owner NORTHWESTERN POLYTECHNICAL UNIV