Processing method of high-precision angle and symmetry plate parts
A high-precision, symmetry technology, applied in the field of technology, can solve the problems of affecting the production cycle, waste of resources, affecting the pass rate of parts size, etc., and achieve the effects of preventing deformation, ensuring quality, and ensuring machining accuracy
Active Publication Date: 2017-03-29
SHENYANG AEROSPACE XINLE
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Problems solved by technology
[0002] A certain type of empennage product is made of aluminum alloy 7A04-T6, and the shape of the part is relatively complicated, so the size of the part may not meet the requirements of the drawing during the processing process, which will affect the pass rate of the part size
This type of empennage product has been processed by wire cutting machine tool with special tooling from the development stage to finalized batch production. Although qualified parts can be processed, both the pass rate and work efficiency are very low, which not only affects the production cycle, It also causes a waste of resources
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[0019] A processing method for processing high-precision angle and symmetry plate parts, such as figure 1 and figure 2 As shown, the thinnest part thickness is only 1.6mm. There are three transverse slots with a size of 8°±8′ in the plate-type parts to be processed. The shape and position tolerance requirements are relatively strict. The surface roughness is 0.8, the groove width is 3.2H8, including the following steps:
[0020] 1) Production of tooling: such as image 3 and Figure 4 As shown, the rectangular block whose area is larger than the part to be processed is divided into two parts by wire cutting in the thickness direction, and a cavity 1 equal to the thickness of the plate part is provided on the upper part of the rectangular block division surface, and the upper end of the cavity 1 is provided with Inverted water drop-shaped hollow through hole 2, the position of the hollow through hole 2 corresponds to the position to be processed, and the processing area thr...
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The invention relates to a processing method of plate type parts with high-precision angles and high symmetry degrees. The processing method comprises the following steps: (1) manufacturing a fixture, namely, averagely dividing a rectangular block with an area greater than that of a to-be-processed part into two pieces in the thickness direction, arranging a cavity the thickness of which is equal to the thickness of a plate type part at the upper part of a dividing surface of the rectangular block, forming a hollow through hole which is of an inverted drop shape in the upper end of the cavity, wherein the position of the hollow through hole corresponds to the position of the to-be-processed part; (2) positioning the part, namely, exposing a to-be-processed region in a through hole in a processing region, and clamping for positioning; (3) preparing for a milling cutter, namely, respectively preparing a rough milling cutter, a semi-finishing milling cutter and a finishing milling cutter; (4) aligning the fixture; and (5) roughly finishing the plate type part, semi-finishing and finishing sequentially. According to the processing method, a process method of processing precisions of angles and symmetry degree of an empennage is improved, so that the yield of the parts is increased, the working production efficiency is greatly improved, and the labor intensity of a worker and the production processing cost are lowered.
Description
technical field [0001] The invention relates to a processing method for processing high-precision angle and symmetry plate parts, belonging to a process method. Background technique [0002] A certain type of empennage product is made of aluminum alloy 7A04-T6, and the shape of the part is relatively complicated, so the size of the part may not meet the requirements of the drawing during the processing process, which will affect the pass rate of the part size. This type of empennage product has been processed by wire cutting machine tool with special tooling from the development stage to finalized batch production. Although qualified parts can be processed, both the pass rate and work efficiency are very low, which not only affects the production cycle, It also causes a waste of resources. For a long time, the processing method of this part has been the bottleneck problem of our factory. Contents of the invention [0003] The technical problem to be solved by the present...
Claims
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IPC IPC(8): B23C3/00
CPCB23C3/00
Inventor 王忠扬朱宏斌郭奇苏键
Owner SHENYANG AEROSPACE XINLE