Finishing machining device applied to enclosed impellers and capable of generating three-dimensional vibration
A technology of smooth finishing and closed impeller, which is applied in the direction of metal processing equipment, manufacturing tools, grinding workpiece supports, etc., which can solve the problems of bolt shear fracture, high labor intensity, and affecting production efficiency, so as to ensure strength and avoid Effect of shear fracture and improvement of wear resistance
Inactive Publication Date: 2019-04-23
XIAN SPACE ENGINE CO LTD
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Problems solved by technology
This device only realizes the separation of the workpieces, avoids the mutual collision between the workpieces, and does not avoid the rigid impact between the workpieces and the partition plate; it cannot ensure that the workpieces move in the direction of the fixed spatial position, so that the abrasive can uniformly polish the inner cavity specified by the workpiece. Complete processing; the partition plate and the working tank are fixed by simple bolt connection, the bolts are prone to shear fracture during the vibration process, causing the partition plate to easily deviate from the fixed position, and the partition plate is buried in the abrasive, requiring frequent alignment and labor Strong and affects production efficiency
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[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, and the present invention includes but not limited to the following embodiments.
[0015] One of the technical solutions of the present invention is: a closed impeller three-dimensional vibration finishing device, which is composed of a working tank, a vibration motor, an air spring, and a space positioning plate. The core of the space positioning plate is made of 0Ci18Ni9 stainless steel plate, and the surface is coated with wear-resistant resin polyurethane, which ensures the strength, improves the wear resistance, avoids collision between workpieces and slows down the rigid impact between the workpiece and the space positioning plate.
[0016] The second technical solution of the present invention is: the shape and size of the bottom of the space positioning plate are designed according to the revolution trajectory of the grinding medium group, so as to...
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The invention provides a finishing machining device applied to enclosed impellers and capable of generating three-dimensional vibration. The finishing machining device comprises an operation tank, a vibration motor, air springs and space positioning plates and is characterized in that the operation tank is fixedly connected on the ground or an operation platform surface through the air springs; three-dimensional vibration can be generated under driving of the vibration motor; a plurality of space positioning plates are arranged in the operation tank in parallel and are made of 0Ci18Ni9 stainless steel plates; the surfaces of the space positioning plates are coated with abrasion-resistant resin polyurethane. The finishing machining device is capable of avoiding collision among workpieces, simultaneously alleviating rigid impact of the workpieces and the space positioning plates, effectively avoiding generation of shear fracture of fastening bolts under vibration effect and achieving anti-disengaging positioning connection among between the space positioning plates and the operation tank.
Description
technical field [0001] The invention relates to a finishing device, which can be used in the three-dimensional vibration surface finishing process of the precision casting surface of the closed impeller investment casting of high-strength stainless steel with three-dimensional special-shaped space and curved surface for rockets. Background technique [0002] High-strength stainless steel precision castings for rockets have harsh working conditions and have extremely high requirements on the surface quality of the castings. Relying on traditional polishing techniques, it is difficult to guarantee the consistency of the surface roughness of the castings. Three-dimensional vibration finishing can uniformly reduce the surface roughness of castings, improve the capillary properties of the surface, and improve the corrosion resistance of castings. The working channel of the inner cavity of the closed impeller is a three-dimensional space special-shaped surface structure. In order ...
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IPC IPC(8): B24B31/06B24B41/06
Inventor 杨欢庆王琳高怀胜张俊青纪艳卿
Owner XIAN SPACE ENGINE CO LTD