Milling and clamping device for eccentric upper head flange

A technology of head flange and clamping device, which is applied in the field of machining, can solve the problems of long clamping time, multiple milling machine changes, low efficiency, etc., achieve high uniformity, reduce alignment difficulty, and improve pass rate Effect

CN104148971BInactive Publication Date: 2016-05-25四川富临集团成都机床有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-05-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a hole-milling clamping device for an eccentric upper sealing head flange. The hole-milling clamping device comprises a positioning ring, a positioning disc, air cylinders, electromagnetic valves and pressing heads, a set of circular-arc-shaped side walls and an eccentric positioning pin are arranged on the positioning disc, the circular-arc-shaped side walls form a cylindrical excircle, the inner-side surface of each circular-arc-shaped side wall and an end-portion plane are connected through a bevel, two bevels form a conical face, and the air cylinders extend and contract to drive the pressing heads to press or release a workpiece. By utilizing the hole-milling clamping device, processing of an axis hole, four through holes and a strip-shaped hole can be completed on a milling machine, and a sealing plate is clamped only once during processing, so that processing efficiency is improved; the sealing plate is fixed in position and quite easy to clamp, so that aligning difficulty is lowered, and inaccuracy in clamping is avoided; a reference is taken as a processing reference of the side walls, the four through holes and the strip-shaped hole, so that high uniformity is maintained, qualification rate of finished products is increased, and the finished product qualification rate is increased to be more than 97%.
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Description

technical field

[0001] The invention relates to a machined one, in particular to a milling and clamping device for an eccentric upper head flange. Background technique

[0002] The eccentric upper head flange is a special flange in the pipeline circulation industry, as attached figure 1 As shown, it includes a circular sealing plate 101, an axis hole 102 is opened on the axis of the circular sealing plate 101, and an axis sleeve 103 is installed on the axis hole 102, and a Four through-holes 106 distributed symmetrically around the axis are used to pass through and fix the measurement signal terminals, and arc-shaped strip holes 104 are arranged around the sealing plate 101 for the installation of seals An irregular groove 105 is recessed and formed on the sealing plate 101 for installing the signal measuring block, and its shape matches it.

[0003] At present, the processing technology of the eccentric upper head flange is as follows: firstly, the center hole is drilled ...

Examples

Embodiment

[0022] Such as figure 2 As shown, a milling and clamping device for an eccentric upper head flange according to the present invention includes a positioning ring 1, the positioning ring 1 is in the shape of a ring, and a pair of inner columns 9 are installed on the inner side of the positioning ring 1, and the outer side of the positioning ring 1 An outer column 10 is installed, and the inner column 9 and the outer column 10 are evenly arranged on the positioning ring 1, and the connecting line of the inner column 9 and the connecting line of the outer column 10 are basically vertically distributed, and the positioning ring 1 passes through the inner column 9 and the outer column. 10 is installed on a milling machine, and a cylinder 6 corresponding to the outer column 10 is installed on the inner side of the positioning ring 1. The cylinder 6 is a double-channel cylinder, and the outer channel drives the rotating shaft 11 to rotate, and the inner channel drives the push rod 12...