A method for controlling the position degree of the support plate of the casting frame with inclined support plate
A control method and the technology of the inclined support plate are applied in the directions of measuring devices, mechanical measuring devices, and mechanical devices, etc., which can solve problems such as hidden quality problems, inconsistencies, and inaccurate positioning of angular positions.
Active Publication Date: 2021-09-10
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology
This not only wastes the processing cycle, increases the workload of grinding and troubleshooting, but also brings hidden dangers to the quality of the product.
Controlling the dimensional accuracy of molds and wax patterns from the casting process can effectively improve the dimensional accuracy of castings. However, due to the dimensional changes of castings in the later stages of hot isostatic pressing, heat treatment, repair welding and other processes, castings are mechanically processed. There is also the problem of inaccurate or inconsistent angular position positioning
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[0028] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0029] A method for controlling the position degree of a cast support plate of a load-bearing frame with an inclined support plate, comprising the following steps:
[0030] Such as Figure 6 As shown, step 1, making the initial benchmark of the bearing frame casting of the inclined support plate: when using the support plate position degree detection tool for detection, firstly use the CNC lathe to check the inner surface of the inner ring and the large installation edge of the bearing frame casting of the inclined support plate Face turning process, make radial datum A and axial datum B, take the inner surface of the inner ring of the bearing frame casting of the inclined support plate as the radial datum A, and the end face of the large mounting edge as the axial datum B, such as Figure 7 shown;
[0031] Step 2, placing the load-bearing f...
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A method for controlling the position degree of a support frame casting of an inclined support plate, comprising the following steps: Step 1, making an initial datum of the inclined support plate load-bearing frame casting; Step 2, placing the inclined support plate load-bearing frame casting; Step 3, supporting Plate position detection; step 4, determination of the angular reference of the bearing frame casting of the inclined support plate; step 5, preparation of the angular reference; step 6, review of the angular reference; step 7, processing and assembly of the casting of the bearing frame of the inclined support plate : Process the angular dimension of the diagonal support frame casting according to the angular reference of the diagonal support frame casting after review, and carry out pipe-through assembly. Use the support plate position degree detection tool to check the support plate position degree of the inclined support plate load-bearing frame casting, and use the support plate position degree detection tool to determine the angular reference of the casting, to ensure the accurate transmission of the reference, so that the position of the support plate after casting processing The high precision can meet the pipe threading requirements during assembly, eliminate the quality hazards caused by grinding, and reduce the scrapping rate of the casing.
Description
technical field [0001] The invention belongs to the technical field of aero-engines, and in particular relates to a method for controlling the position degree of a support plate of a load-bearing frame casting of an inclined support plate. Background technique [0002] The load-bearing frame of a certain batch of engine slant struts is a large complex thin-walled high-temperature alloy integrally cast casing. The casting is composed of an inner ring, an outer ring and eight slant struts connected to them. The maximum outer dimension is φ878mm×178mm. The minimum wall thickness is 2mm and the maximum wall thickness is 13mm. After the casting is processed, oil pipes or temperature measuring tubes are installed in the four support plates without lugs. The gap between the installed pipes and the inner wall of the support plate is not less than 1mm, so the position of the support plate is required to reach φ1mm. For such a large and complex casting, it is extremely difficult to e...
Claims
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IPC IPC(8): B23P15/00G01B5/00
CPCB23P15/00G01B5/0002G01B5/003
Inventor 韩欢于海涛柳乐周浩浩洪杰
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION