Machining method of high-precision special-shaped curved surface
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A special-shaped curved surface and processing method technology, applied in the direction of measuring devices, instruments, etc., to achieve the effect of high processing accuracy
Pending Publication Date: 2021-12-31
杨官全
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[0005] Aiming at the technical problems existing in the prior art, the present invention provides a high-precision processing method for special-shaped curved surfaces to
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Embodiment 1
[0056] This embodiment mainly takes the fitting of the inner hole curve of the WHLG10-102 stator as an example in detail:
[0057] The above parts such as image 3 with Figure 5 As shown, the material used is YK10S cemented carbide, and the raw material specification is 107*107*18.
[0058] The steps of fitting the internal control curve of WHLG10-102 stator are as follows:
[0059] S1. Generate polylines according to the surface parameters of the workpiece, and decompose the polylines into multiple polylines; wherein, the polylines are composed of multiple straight line segments and / or arc segments;
[0060] Among them, the polyline is formed by function generation or coordinate point fitting; since the polyline cannot be directly recognized by the processing equipment, it is necessary to fit the polyline.
[0061] S2. Identify the straight line segment and / or arc segment in the polyline and mark the starting point, and mark the horizontal or vertical line segment with th...
Embodiment 2
[0094] This embodiment mainly processes the inner rotor of WHLG102-111\112\178, the parts such as Image 6 with Figure 7 As shown, the principle of fitting the surface curve of the part is the same as that of the first embodiment, and will not be repeated here.
[0095] In addition, the processing process of WHLG10-102 stator parts is also explained, and the specific processing steps are as follows:
[0096] B1. Material preparation process: A52183 steel is selected for material supply, and the tailings after production can be recycled;
[0097] B2. Lathe process: outer circle and inner hole D50*60*D10, internal and external chamfering C0.5, tolerance ±0.1;
[0098] B3, heat treatment process: quenching and tempering by heat treatment;
[0099] B4. Grinding machine process: rough grinding the outer circle to see the light;
[0100] B5. Slow wire process: cut the outer tooth profile curve and inner hole, reserve for finishing, and the grinding allowance is 0.2-0.3 per side...
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Abstract
The invention relates to the technical field of machine manufacturing, in particular to a machining method of a high-precision special-shaped curved surface. The method comprises the following steps that S1, a polyline is generated according to curved surface parameters of a workpiece to be machined, and is further decomposed into a plurality of polylines; and the polylines are composed of a plurality of straight line segments and/or arc segments; S2, the straight line segments and/or arc segments in the polylines are recognized, a starting point is marked, and horizontal or vertical line segment identification is conducted with the starting point as an end point; and S3, the end points of N straight line sections and/or arc sections are sequentially selected in the curve fitting direction, the end points are numbered as Ni (i = 1-n) in sequence, the arc is fitted by using the three points of N1, N2 and Nn/2, and the normal deviation of the arc and the fitted curve is obtained. According to the machining method of the high-precision special-shaped curved surface, a discrete curve dot matrix which cannot be recognized by JG is fitted into a continuous curve (surface) which can be subjected to programming machining, and high-precision machining of parts is achieved.
Description
technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a processing method for high-precision special-shaped curved surfaces. Background technique [0002] About special-shaped curved surfaces widely exist in mechanical parts, the most common ones are tooth surfaces of gears, blade surfaces of propellers, etc. The curved surfaces of these parts are used in a large amount and involve a wide range. Many special-purpose machine tools and software have been developed on the market. Solve its processing problems. [0003] However, for some special-shaped curved surfaces, the amount of parts used is not large, and the annual amount does not exceed 1,000 pieces; the selection of materials is relatively special, such as hard alloy, hardened stainless steel SUS440C or WC and other superhard coatings; the precision requirements are high, such as contour The deviation is less than 5 microns, and the roughness is Rz1 microns (e...
Claims
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Application Information
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