Spiral inter-band slot machining method for outer circle of cylindrical workpiece
A helical belt and cylindrical technology, applied in the field of cylindrical workpiece processing, can solve the problems of inconvenient, complicated calculation of the coordinate points on the side of the helical belt, and difficult manual calculation.
Active Publication Date: 2020-07-07
DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP
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Problems solved by technology
[0002] At present, when a cylindrical workpiece, such as a straight pipe with a spiral band on the outer circle of a straight pipe, needs to be processed, since the width of the spiral band on the outer circle of the straight pipe is constant, the distance between adjacent spiral bands changes with the change of its radial height dimension, resulting in The calculation of the coordinate points on the side is complicated and difficult to calculate manually, so only computer-aided programming can be used
Although this can meet the needs of processing, it is necessary to build a 3D model of the workpiece before processing, and then use computer-aided programming software for programming. The programming process is cumbersome and inconvenient, and it must be equipped with computer-aided programming software to implement, and the scope of application is limited.
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[0039] Such as figure 1 , figure 2 , image 3 As shown, according to the method of the present invention, the straight steel pipe workpiece whose material is SA-312TP316H is processed on the outer circle with the groove between the spiral bands:
[0040] S1. Take the straight steel pipe workpiece to be processed, measure the outer circle radius R=300mm of the straight steel pipe workpiece to be processed; according to the design requirements, determine the width of the spiral strip to be processed b=40mm, the height of the spiral strip to be processed H=30mm, and the spiral strip to be processed The fillet at the bottom of the belt is r=5mm, the angle between the centerlines of the adjacent helical belts to be processed is θ=18°, and the rising angle of the helical belts is α=45°.
[0041] S2. Determine the number of milling layers of the spiral groove: take the milling depth a of each layer p =1.9, take the bottom finishing allowance e 2 = 1.5; then,
[0042] S3, rand...
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The invention relates to a machining technology, and particularly discloses a spiral inter-band slot machining method for an outer circle of a cylindrical workpiece. According to the method, parametric numerical control programming of adjacent spiral inter-band slot to be machined is realized by obtaining adjacent spiral inter-band space first, which can replace computer aided programming to machine a spiral band on the outer circle of the cylindrical workpiece; a three-dimensional model of a workpiece is not required to be established by parametric numerical control programming, so that a numerical control programming process is more convenient and efficient on the premise of ensuring accuracy and reliability of the numerical control programming, which is beneficial to shortening a workpiece machining preparation period; comparatively speaking, the requirement on the skill of numerical control programming personnel of parametric numerical control programming is low, which is beneficial to wide application.
Description
technical field [0001] The invention relates to a mechanical processing technology, in particular to a cylindrical workpiece processing technology. Background technique [0002] At present, when a cylindrical workpiece, such as a straight pipe with a spiral band on the outer circle, needs to be processed, since the width of the spiral band on the outer circle of the straight tube is constant, the distance between adjacent spiral bands changes with the change of its radial height, resulting in The calculation of coordinate points on the side is complicated and difficult to calculate manually, so only computer-aided programming can be used. Although this can meet the needs of processing, it is necessary to build a three-dimensional model of the workpiece before processing, and then use computer-aided programming software for programming. The programming process is cumbersome and inconvenient, and it must be equipped with computer-aided programming software to implement it. The...
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CPCB23C3/32
Inventor 郭光强张强强张涛程小刚严欢
Owner DONGFANG BOILER GROUP OF DONGFANG ELECTRIC CORP