CN2720403Y

CN2720403Y - Guide-sleeve for measuring size of subland drill

Info

Publication number: CN2720403Y
Application number: CN2004200611172U
Authority: CN
Inventors: 江智斌
Original assignee: Changan Automobile Group Co Ltd
Current assignee: Changan Automobile Group Co Ltd
Priority date: 2004-09-04
Filing date: 2004-09-04
Publication date: 2005-08-24
Anticipated expiration: 2014-09-04

Abstract

The utility model relates to a guide-sleeve for measuring size of an aiguille. A measure through hole is arranged in the center of the guide sleeve. The diameter of the measure through hole matches the outside diameter of the checked aiguille with a minor interval, about 0.005 mm-0.015 mm. The length and the dimension of the guide sleeve are the same with the effective machining dimension of the measured aiguille. The maximum value and the minimal value of the length dimension of the guide sleeve form pointing touching step. The size of the pointing touching step is equal to the effective processing dimensional tolerance of the measured aiguille, which is L(+/-) delta. The guide sleeve has minor interstice match and accuracy of manufacture, excellent operability on site, strong applicability and convenient, quick, accurate and direct measurement.

Description

A kind of frock guide pin bushing of measuring the step bit size

Technical field

The utility model belongs to cutter manufacturing and test measuring device field, is specifically related to a kind of frock guide pin bushing of measuring the step bit size.

Background technology

Present detection for the step bit size, usually adopt projector to measure, utilize light beam that the profile of step bit size is carried out projection, then its profile is measured, though measuring accuracy is higher,, need the special messenger to measure owing to need special-purpose instrument (projector), and non-cutting time is longer, therefore has shortcomings such as Measuring Time is long, cost is high, detection inconvenience.

Summary of the invention

The utility model provides a kind of frock guide pin bushing of measuring the step bit size at the deficiency that existing step bit size detection measurer exists, and has good on-the-spot operability, and measurement conveniently, rapidly, accurately, directly.

Technical solution of the present utility model is as follows:

A kind of frock guide pin bushing of measuring the step bit size, this frock guide pin bushing center have one and measure through hole, and the diameter of this measurement through hole has with detected outside diameter and cooperates less intermittence, generally at 0.005mm-0.015mm; The length dimension of this frock guide pin bushing is consistent with effective processing dimension of tested step bit, and the maximal value of frock guide pin bushing length dimension and minimum value form the step of fingering print or thumb print, and effective processing dimension tolerance of the size of the step of fingering print or thumb print and tested step bit is equal to, and is L ± Δ.When utilizing the frock guide pin bushing to detect effective processing dimension of step bit, with effective processing dimension of measured step bit in the step scope of fingering print or thumb print of frock guide pin bushing for qualified.

The utility model is under the prerequisite that the step bit outside dimension is changed, designed the suitable mutually frock guide pin bushing that cooperates pointedly, this frock guide pin bushing has less clearance and cooperates and manufacturing accuracy, has good on-the-spot operability, it is convenient, rapid, accurate, direct to measure, and applicability is stronger.

Description of drawings

Fig. 1 is the effective processing dimension synoptic diagram of tested step bit;

Fig. 2 is the structural representation of this frock guide pin bushing;

Fig. 3 is the constitutional diagram that this frock guide pin bushing is used to detect.

Embodiment

Referring to Fig. 1 and Fig. 2, the center of this frock guide pin bushing has one and measures through hole 1, the diameter of this measurement through hole and be engaged in 0.005mm-0.015mm the intermittence of detected outside diameter; The length dimension of this frock guide pin bushing is consistent with effective processing dimension of tested step bit, the maximal value of frock guide pin bushing length dimension and minimum value form the step 2 of fingering print or thumb print, the size of step 2 and the effective processing dimension tolerance of tested step bit of fingering print or thumb print is equal to, and is L ± Δ.

The detection mode of this frock guide pin bushing: as shown in Figure 3, the frock guide pin bushing is positioned on the step bit, effective processing dimension of measured step bit is qualified in the step scope of fingering print or thumb print of frock guide pin bushing.

Claims

1, a kind of frock guide pin bushing of measuring the step bit size is characterized in that: this frock guide pin bushing center has one and measures through hole, the diameter of this measurement through hole and be engaged in 0.005mm-0.015mm the intermittence of detected outside diameter; The length dimension of this frock guide pin bushing is consistent with effective processing dimension of tested step bit, and the maximal value of frock guide pin bushing length dimension and minimum value form the step of fingering print or thumb print, and effective processing dimension tolerance of the size of the step of fingering print or thumb print and tested step bit is equal to, and is t ± Δ.