CN201104207Y

CN201104207Y - Outer diameter limit gauge for steel pipe end

Info

Publication number: CN201104207Y
Application number: CNU2007201001420U
Authority: CN
Inventors: 谢杰; 杜忠铭; 邢成楼; 张惠萍; 汪凤华; 李会玲
Original assignee: Tianjin Pipe Group Corp
Current assignee: Tianjin Pipe Group Corp
Priority date: 2007-10-25
Filing date: 2007-10-25
Publication date: 2008-08-20
Anticipated expiration: 2017-10-25

Abstract

The utility model provides a steel tube end outside diameter limit gauge comprising a concave gauge body with two symmetric edges, a handle which is connected in the middle of the outside of the gauge body, an arc measurement plane which is arranged inside the two edges of the concave gauge body, a lug boss which is arranged on the root of the measurement plane, and a mark which is marked with a specification of the limit gauge is arranged on the external surface of the gauge body. The limit gauge of the utility model does not need a reading while measuring, can quickly online measure whether the outside diameter of the steel tube is qualified or not without separating measured components, and has the handle of an instrument far from a tube body to prevent the possibility of hurting an operator. The limit gauge not only can measure the outside diameter of a superstandard maximum steel tube, but also can measure the outside diameter of a superstandard minimum steel tube so as to improve the reliability of measurement, and is capable of covering functions of measurement of the prior plain ring gauge and making up defects of the plain ring gauge. The limit gauge has a light self weight, which is only one-tenth of the weight of the plain ring gauge with the same specification, thereby reducing the labor intensity of the operator. The steel tube end outside diameter limit gauge is of convenient portability and quick measurement.

Description

The pipe end external limit ga(u)ge

Technical field

The utility model relates to a kind of measurer of measuring end diameter, is applicable to pipe end outside diameter measuring limit gauge.

Background technology

On extensive, at a high speed pipe production line, require whether conformance with standard of the online quick judgement tube product external diameter of reviewer, and do not need to measure one by one concrete numerical value.But existing survey pipe end external diameter is with following two kinds of methods: the one, go out concrete numerical value with vernier caliper measurement, with standard-required relatively, judge whether satisfy standard-required again.This measuring method is longer measuring period, can not satisfy the requirement of rhythm of production.This in addition measuring method can only be measured the several points on the pipe end circumference, can not carry out the measurement on the whole circumference.The 2nd, use up the face ring gauge and measure, but ring gauge can only be measured overproof peaked outer diameter of steel pipes, and can not measure the outer diameter of steel pipes of overproof minimum value.This method requires the certain distance that will separate between the tested steel pipe, and ring gauge just can be enclosed within on the pipe end and measure, and influences online production.Ring gauge weight is bigger simultaneously, and labour intensity is bigger, also has potential safety hazard.

Summary of the invention

For solving the technical matters of fast on-line measurement pipe end external diameter, the purpose of this utility model provides a kind of pipe end external limit ga(u)ge, be beneficial to solve the problem of the online quick measurement external diameter of pipe end, improve the precision of measuring simultaneously, help guaranteeing the quality of product.

For achieving the above object, the technical solution adopted in the utility model provides a kind of pipe end external limit ga(u)ge, wherein: these rule include the rule body that both sides shape symmetry is spill, the outer middle side part of described rule body is connected with handle, the inboard, both sides of described spill rule body is provided with circular arc and measures face, root at described measurement face is provided with a boss, is marked with the sign of limit gauge specification at the outside surface of rule body.

It with the handle groove that the two side mark bodies at center are provided with spill.

Described handle is the hollow cylindrical handle.

Pipe end external limit ga(u)ge of the present utility model does not need reading when measuring, whether qualified, do not need measured piece is separated if just can measure outer diameter of steel pipes apace, be convenient to on-line measurement and use, and the instrument handle has been avoided the possibility that operating personnel are damaged away from body.This limit gauge can not only be measured overproof peaked outer diameter of steel pipes, and can measure the outer diameter of steel pipes of overproof minimum value, has improved the measurement reliability, can contain the measurement function of existing light face ring gauge fully and compensates its defect.This limit gauge own wt is light, only be same specification light face ring gauge weight 1/10, reduced labor intensity of operating personnel, be convenient for carrying, measure quick.

Description of drawings

Fig. 1 is a pipe end external limit ga(u)ge structural representation;

Fig. 2 is that the A of Fig. 1 is to partial view;

Fig. 3 is the B-B cut-open view of Fig. 1;

Fig. 4 is that the C of Fig. 1 is to partial view.

Among the figure:

1, rule body 2, sign

3, handle 4, boss

Embodiment

Reaching embodiment in conjunction with the accompanying drawings is illustrated pipe end external limit ga(u)ge structure of the present utility model.

The utility model carries out the pipe end outside diameter measuring with distance separating between measurement face.

Shown in Fig. 1-4, pipe end external limit ga(u)ge structure of the present utility model is: these rule include the rule body 1 that both sides shape symmetry is spill, the outer middle side part of described rule body 1 is connected with handle 3, the inboard, both sides of described spill rule body 1 is provided with circular arc and measures face, root at described measurement face is provided with a boss 4, outside surface at rule body 1 is marked with the sign 2 of limit gauge specification, indicates with steel seal to indicate 2, promptly represents the nominal outside diameter of tested steel pipe.For reducing the overall weight of limit gauge, on the two side mark bodies 1 that with handle 3 are the center, be provided with the groove of spill, described handle 3 is designed to the hollow cylindrical handle, with being threaded that rule body 1 adopts.

The circular arc of inboard, both sides is measured face in this pipe end external limit ga(u)ge, and the diameter of its circular arc is the nominal outside diameter of tested steel pipe, equals the maximal value of standard-required at the openings of sizes T of the anterior spill of advising body 1.Root at described measurement face is provided with a boss 4, and what another from boss 4 to rule body 1 measured face equals the minimum value of standard-required apart from Z.

When using this pipe end external limit ga(u)ge, hold round shaft 3, to the tested position of contact pipe end, when pipe end can not pass through rule body 1 front opening, judge that then the overproof upper limit of outer diameter of steel pipes is that outer diameter of steel pipes is defective along steel shaft; If pipe end can be by front opening then continued to protracting, but can not be by boss 4 time, judge that then the outer diameter of steel pipes conformance with standard is that outer diameter of steel pipes is qualified; If when pipe end passes through boss 4, judge that then the overproof lower limit of outer diameter of steel pipes is that outer diameter of steel pipes is defective.

Claims

1. pipe end external limit ga(u)ge, it is characterized in that: these rule include the rule body (1) that both sides shape symmetry is spill, the outer middle side part of rule bodies (1) is connected with handle (3), the inboard, both sides of described spill rule bodies (1) is provided with circular arc and measures face, root at described measurement face is provided with a boss (4), is marked with the sign (2) of limit gauge specification at the outside surface of rule bodies (1).

2. pipe end external limit ga(u)ge according to claim 1 is characterized in that: with handle (3) is the groove that the two side mark bodies (1) at center are provided with spill.

3. pipe end external limit ga(u)ge according to claim 1 is characterized in that: described handle (3) is the hollow cylindrical handle.