CN202494404U

CN202494404U - Plug gauge

Info

Publication number: CN202494404U
Application number: CN2012200673313U
Authority: CN
Inventors: 张军; 张灵; 刘正华
Original assignee: HANGZHOU DONGCHANG MACHINERY MANUFACTURING Co Ltd
Current assignee: HANGZHOU DONGCHANG MACHINERY MANUFACTURING Co Ltd
Priority date: 2012-02-28
Filing date: 2012-02-28
Publication date: 2012-10-17
Anticipated expiration: 2022-02-28

Abstract

The utility model discloses a plug gauge. The plug gauge comprises a rod body, a go gauge and a no-go gauge which are respectively connected to both ends of the rod body; the diameter of the go gauge is equal to a minimum value allowed by the diameter of a measured hole; the diameter of the no-go gauge is equal to a maximum value allowed by the diameter of the measured hole; a through hole for exhaust is arranged inside the rod body; an opening of one end of the through hole is arranged at an outer end face of the go gauge; and an opening of the other end of the through hole is arranged at an outer end face of the no-go gauge. The plug gauge is advantaged in that: measurement efficiency is improved; measurement results are more accurate; when a blind hole is measured, the air inside the blind hole can be exhausted, which is convenient for the plug gauge to smoothly enter the blind hole.

Description

Feeler gauge

Technical field

The utility model relates to a kind of workpiece sensing instrument, particularly a kind of feeler gauge that is used for the workpiece inside diameter measurement.

Background technology

Whether the at present general internal diameter that adopts the hole that artificial measuring method detects workpiece is in the acceptability limit of check tolerance; Whether the internal diameter that to be survey crew read institute's gaging hole through the reading on the slide calliper rule is in the scope of allowable tolerance, but when carrying out measure batch, the working strength of survey crew is bigger; Cause measuring error easily; And then influence the normal use of workpiece, simultaneously, manual measurement hole internal diameter efficient is also very low.

The utility model content

The utility model technical matters to be solved is, a kind of whether feeler gauge in Measurement Allowance of measure batch hole internal diameter that is used for is provided.

For solving the problems of the technologies described above; The feeler gauge that the utility model provides, it comprises the body of rod and is connected to the drift and the no-go gage at body of rod two ends, the diameter of said drift equates with the minimum value that the institute gaging hole directly allows; The diameter of said no-go gage equates with the maximal value that the institute gaging hole directly allows; Said body of rod inside has the through hole that is used for exhaust, and an end opening of said through hole is in the outer face of drift, and the other end of said through hole is opened on the outer face of no-go gage.

As improvement, be pressed with decorative pattern on the said body of rod, be in order to increase the friction force between operating personnel and the feeler gauge, to prevent staff's generation skidding when operation.

After adopting above structure, the feeler gauge of the utility model compared with prior art has the following advantages: improved the efficient of measuring; Measurement result is more accurate; Simultaneously on feeler gauge, being provided with the through hole that is used for exhaust, is during for the blind hole on the measuring workpieces, and the blind hole inner air is in time discharged through the through hole on the feeler gauge; Reduce resistance, make things convenient for feeler gauge to insert in the blind hole smoothly.

Description of drawings

Fig. 1 is the structural drawing of the utility model feeler gauge.

Wherein: the body of rod 1, drift 2, no-go gage 3, through hole 4.

Embodiment

Combine accompanying drawing that the utility model is done further to describe through embodiment below.

As shown in Figure 1; The feeler gauge that present embodiment provides, it comprises the body of rod 1 and is connected to the drift 2 and no-go gage 3 at the body of rod 1 two ends, the diameter of said drift 2 equates with the minimum value that the institute gaging hole directly allows; The diameter of said no-go gage 3 equates with the maximal value that the institute gaging hole directly allows; The said body of rod 1 inside has the through hole 4 that is used for exhaust, and an end opening of said through hole 4 is in the outer face of drift 2, and the other end of said through hole 4 is opened on the outer face of no-go gage 3.

As the improvement of present embodiment, be pressed with decorative pattern on the said body of rod 1.

Detection method: feeler gauge is inserted in the institute gaging hole footpath, and the no-go gage plug is not entered if drift can be filled in, and then this aperture is qualified, otherwise is exactly underproof.

Claims

1. feeler gauge; It is characterized in that: it comprises the body of rod and is connected to the drift and the no-go gage at body of rod two ends; The diameter of said drift equates with the minimum value that the institute gaging hole directly allows, and the diameter of said no-go gage equates that with the maximal value that the institute gaging hole directly allows said body of rod inside has the through hole that is used for exhaust; One end opening of said through hole is in the outer face of drift, and the other end of said through hole is opened on the outer face of no-go gage.

2. feeler gauge according to claim 1 is characterized in that: be pressed with decorative pattern on the said body of rod.