Method for controlling support plate position degree of inclined support plate force-bearing frame casting
A control method and a technology of inclined support plates, which are applied in the direction of measuring devices, mechanical devices, mechanical measuring devices, etc., can solve problems such as hidden quality problems, increased workload of grinding and troubleshooting, waste of processing cycles, etc., to reduce scrap rate, The effect of eliminating quality hidden dangers
Active Publication Date: 2021-01-15
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 molds from the casting process can effectively improve the dimensional accuracy gradually. 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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The invention discloses a method for controlling the support plate position degree of an inclined support plate force-bearing frame casting. The method comprises the following steps: step 1, manufacturing an initial reference of the inclined support plate force-bearing frame casting; step 2, placing the inclined support plate force-bearing frame casting; step 3, detecting the support plate position degree; step 4, determining an angular reference of the inclined support plate force-bearing frame casting; step 5, manufacturing the angular reference; step 6, rechecking the angular reference; andstep 7, processing and assembling the inclined support plate force-bearing frame casting: processing the angular dimension of the inclined support plate force-bearing frame casting according to the rechecked angular reference of the inclined support plate force-bearing frame casting, and carrying out pipe penetrating assembly. A support plate position degree detection tool is used for detecting the support plate position degree of the inclined support plate force-bearing frame casting, the support plate position degree detection tool is used for determining the angular reference of the casting, accurate transmission of the reference is guaranteed, the support plate position degree can meet the pipe penetrating requirement during assembling after the casting is machined, potential qualityhazards caused by grinding are eliminated, and the casing rejection rate is reduced.
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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Login to View More 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