Machining technique for equal-height sleeve

Abstract

The invention discloses a machining technique for an equal-height sleeve. The machining technique for the equal-height sleeve comprises the following steps that 1, a fixing base is prepared and pluralities of threaded holes are formed in the upper end face of the fixing base; 2, one end of a column-shaped material is fixed and marked as a surface A, and the other end is subjected to the grinding treatment and marked as a surface B; 3, a first receding groove and a second receding groove are formed in the surface A and the surface B of the column-shaped material respectively, and a receding hole is formed to make the first receding groove to communicated with the second receding groove; 4, a bolt penetrates into the receding hole of the column-shaped material so as to fix the column-shapedmaterial on the fixing seat; 5, one-cutter grinding on the surfaces A of a plurality of the column-shaped materials is carried out; 6, pluralities of the column-shaped materials are reversely locked,and one-cutter grinding is then carried out on the surfaces B; and 7, a through hole in the axial direction is formed in the column-shaped material which is ground at the two ends, the through hole covers the original first receding groove, the receding hole and the second receding groove, and the equal-height sleeve is thus obtained. By means of the one-cutter grinding, end parts of a plurality of equal-height sleeves can be guaranteed to be flush after being machined so as to reduce the tolerance among the matched equal-height sleeves.

Description

technical field [0001] The invention relates to the field of mold accessories, in particular to a processing technology for contour sleeves. Background technique [0002] The contour sleeve is also called the contour sleeve. As the name suggests, it refers to the hollow sleeve. A set of molds usually has more than a dozen contour sleeves. If the mold is too small, five or six are enough. The same template The matching contour sleeves must all have the same height, and the tolerance should be within ±0.01mm. If the error is too large, it will easily cause accidents such as the stripping plate being stuck and unable to be removed, and the punch breaking. [0003] In the prior art, the processing of the contour sleeve usually includes the following steps: step 1, cold pressing the raw material; step 2, positioning, cutting and grinding one end of the workpiece; step 3, positioning the other end of the workpiece , cutting, grinding. [0004] Through this one-by-one processing ...

AI Technical Summary

Problems solved by technology

[0004] Through this one-by-one processing and preparation method, the tolerance between the matching contour sleeves is usually relatively large, even reaching more than ±0.05mm, which has a great impact on the service life of the mold and needs to be improved.

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