Ultrasonic vibration static pressure abrasive flow finishing machining device and method for impeller blades
A technology of impeller blades and ultrasonic vibration, applied in metal processing equipment, grinding/polishing equipment, machine tools suitable for grinding the edge of workpieces, etc., can solve problems such as inability to maintain static pressure, uneven material removal, etc., and improve efficiency , Improve the effect and finishing precision, improve the effect of work efficiency
Active Publication Date: 2021-12-03
TAIYUAN UNIV OF TECH
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Problems solved by technology
Although this device is suitable for processing impeller blades, static pressure cannot be maintained in the device, so the pressure of the blade fluid abrasive flow field has a gradient change from the inlet to the outlet, which will cause uneven material removal
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[0035] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.
[0036] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same time, terms such as "upper", "low...
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The invention belongs to the technical field of impeller blade machining, and particularly relates to an ultrasonic vibration static pressure abrasive flow finishing machining device and method for impeller blades. The device comprises a box body, a feeding system for providing abrasives for the box body and a recycling system. The feeding system is communicated with the front end of the box body, and the tail end of the box body is communicated with the feeding system through the recycling system to form a circulation loop; an ultrasonic vibrator with a longitudinal-torsional composite amplitude-change pole is arranged in the box body, and the vibration direction of the amplitude-change pole is consistent with the spiral direction of the impeller blades; the tail end of the feeding system abuts against the box body, the abrasives flow into the box body to conduct finishing machining on the impeller blades, the box body is in a static pressure state all the time in the machining process, and therefore the surfaces of the impeller blades are machined evenly. According to the ultrasonic vibration static pressure abrasive flow finishing machining device and method for the impeller blades, the finishing machining effect and the finishing precision are improved; and the working efficiency of the amplitude-change pole is improved.
Description
technical field [0001] The invention belongs to the technical field of surface finishing in mechanical processing, and in particular relates to an impeller blade ultrasonic vibration static pressure abrasive flow finishing device and method. Background technique [0002] The impeller blades are the core components of aero-engines, steam turbines and other devices. The impeller refers not only to the disc equipped with moving blades, but also refers to the general term of the disc and the rotating blades installed on it. The turbine blade in the aero-engine is the part with the highest temperature, the most complex stress and the harshest environment, so it is called the first key part. Due to its complex surface structure and almost harsh application environment, impeller blades have become the most classic difficult-to-machine structural parts. After the blade is machined, the surface needs to be smoothed. At present, extrusion abrasive flow finishing is mainly used; in o...
Claims
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IPC IPC(8): B24B1/04B24B19/14B24B31/10B24B31/12B24B31/16
CPCB24B1/04B24B19/14B24B31/10B24B31/12B24B31/16Y02P70/10
Inventor 董志国张泽华郑志鑫李孟楠
Owner TAIYUAN UNIV OF TECH