Positioning and aligning device for grinding blade tips of aero-engine compressor rotor
A technology for compressor rotors and aero-engines, which is used in grinding/polishing safety devices, grinding workpiece supports, grinding/polishing equipment, etc., can solve the problems of compressor rotor outer circle size not up to standard, gravity eccentric load, etc. Achieve the effect of eliminating errors and ensuring accuracy
Active Publication Date: 2020-09-01
CHINA HANGFA SOUTH IND CO LTD
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Problems solved by technology
[0004] The invention provides an aero-engine compressor rotor grinding blade tip positioning and alignment device to solve the problem of unbalanced load caused by the gravity of the compressor rotor itself during the clamping process, resulting in that the outer circle size of the compressor rotor does not meet the standard after grinding. technical issues
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[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0033] refer to figure 1 , figure 2 , Figure 5 and Figure 6 As shown, the preferred embodiment of the present invention provides an aero-engine compressor rotor grinding blade tip positioning and alignment device, comprising:
[0034] Front-end clamp, the front-end clamp includes a cylindrical front-end clamp body 1 provided with a first central hole 2, one end of the front-end clamp body 1 is provided with a threaded hole 4 coaxial with the axis of the front-end clamp body 1, the thread The hole 4 is matched with the external thread of the engine compressor rotor according to the corresponding tightness, and the other end is provided with the first center hole 6 coaxial with the axis of...
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The invention discloses a positioning and aligning device for grinding blade tips of an aero-engine compressor rotor. The positioning and aligning device comprises a front end clamp and a rear end clamp, wherein the front end clamp comprises a columnar front end clamp body, a threaded hole matched with an outer thread of the engine compressor rotor is formed in one end of the front end clamp body,a first tip hole is formed in the other end of the front end clamp body, and a plurality of first fine adjustment devices are arranged on the cylindrical surface of the front end clamp body in the circumferential direction; and the rear end clamp comprises a columnar rear end clamp body, a bushing mounting hole is formed in one end of the rear end clamp body, the bushing mounting hole is internally provided with a grooved bushing in clearance fit with the peripheral wall of the spline end of the engine compressor rotor, a second tip hole is formed in the other end of the rear end clamp body,and a plurality of second fine adjustment devices are uniformly arranged on the cylindrical surface of the rear end clamp body in the circumferential direction. According to the positioning and aligning device, the influence of the eccentric load caused by the gravity of the rotor in the clamping process and the machining error of the outer diameter of a spline shaft can be eliminated, and the precision of rotor grinding is ensured.
Description
technical field [0001] The invention relates to a positioning and correcting device, in particular to a positioning and correcting device for grinding blade tips of an aeroengine compressor rotor. Background technique [0002] The function of a turboprop aero-engine compressor is to use the output work of the turbine to inhale and compress the outside air, increase the air pressure and temperature, and form a continuous flow of high-pressure air from front to back. In order to obtain higher compressor efficiency, it is required that the radial clearance between the working blade and the working ring be as small as possible, which puts forward higher requirements on the outer circle size of the compressor rotor blade tip. [0003] The rotor of a turboprop aero-engine compressor weighs more than 100Kg and is composed of ten blades in total. Because one end of the shaft at both ends of the rotor is provided with a spline, a central threaded hole or a light hole, and the other e...
Claims
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Login to View More IPC IPC(8): B24B5/36B24B41/06B24B55/00
CPCB24B5/36B24B41/062B24B55/00
Inventor 刘博逵任忠朝李永浩张勇攀刘跃雄程碧玉朱建锋邓波李雨玲杨波周维
Owner CHINA HANGFA SOUTH IND CO LTD