A fast positioning tool for milling hole of eccentric upper head flange

A head flange and positioning tooling technology, applied in the field of machining, can solve the problems of chaotic arrangement of cooling pipes, long clamping time, multiple milling machine changes, etc., to achieve reduced alignment difficulty, high uniformity, and improved The effect of processing efficiency
CN104148968BInactive Publication Date: 2016-08-17四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
四川富临集团成都机床有限责任公司
Publication Date
2016-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a hole-milling quick positioning tool for an eccentric upper sealing head flange. The hole-milling quick positioning tool 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, the air cylinders extend and contract to drive the pressing heads to press or release a workpiece, a cooling liquid pipeline is arranged inside each of inner columns and outer columns, and a quick plug communicated with the corresponding cooling liquid pipeline is mounted on each of the inner columns and the outer columns. The conical face is formed by the two bevels and plays a role in guiding putting-in of a sealing plate, and convenience is brought to quick putting-in of the sealing plate, so that clamping speed is increased; by means of arranging cooling pipelines inside supporting columns, the cooling pipelines are contained in the supporting columns, so that no space is occupied, structure is simplified, and the objectives of compactness and high efficiency are achieved.
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Description

technical field

[0001] The invention relates to a machining device, in particular to a quick positioning tool for milling holes of 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 ...

Claims

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