CN2564983Y

CN2564983Y - External diameter gauge

Info

Publication number: CN2564983Y
Application number: CN 02279172
Authority: CN
Inventors: 程宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-12
Filing date: 2002-09-12
Publication date: 2003-08-06
Anticipated expiration: 2012-09-12

Abstract

The utility model relates to an external diameter gauge which is characterized in that the external diameter gauge is composed of a V-shaped measuring head of 60 DEG and an internal diameter gauge fixed on the measuring head. The external diameter gauge has the advantages of high measuring accuracy, high speed and simple operation. The utility model is especially suitable for the measurement of large batch processing and the measurement of the outer diameter of a peculiar part, and is also suitable for the measurement of a processing part.

Description

A kind of indicating snap gauge

Technical field: the utility model belongs to accurate relatively measurer, relates in particular to a kind of indicating snap gauge.

Background technology: the measurer that is used for outside diameter measuring at present, that generally uses has a calliper, screw micrometer, vernier caliper etc., wherein calliper is to be used for mass-produced in batch special measuring tool, a calliper only is suitable for the measurement of the workpiece of this kind dimensional requirement, and its measurement result can only illustrate that the physical size of workpiece is whether within margin tolerance, there is not concrete size numerical value, its wearing and tearing simultaneously, scrap fast, waste is big: screw micrometer is used for the accurately machined measurement of workpiece, measuring speed is slow, is subjected to its structural limitations just relatively more difficult for the measurement of big workpiece and peculiar part simultaneously; Vernier caliper is the measurement when being used for the roughing of workpiece, and card base must be greater than the diameter of measuring piece, so just exist the inconvenient and inaccurate problem of the excessive measurement that causes of measurer for big workpiece or special workpiece when measuring external diameter.In sum, the existing measurer comparison difficulty that when measuring big workpiece and peculiar part external diameter, just seems.

Summary of the invention: the utility model does not have the problem of the outside diameter measuring difficulty of general measurer, especially big workpiece and peculiar part in order to solve outside diameter measuring, propose a kind of indicating snap gauge, it is characterized in that: described indicating snap gauge is to be made of with the dial bore gage that is fixed on the described measuring head 60 degree V-type measuring heads.This indicating snap gauge belong to a kind of be used to measure external diameter " the relatively measurer " of comparison precision; Adopt this indicating snap gauge accuracy height and speed fast, use is simple, and the measurement in especially being fit to process in enormous quantities and the measurement of peculiar part external diameter are also applicable to the just measurement of the part of work in-process.

Description of drawings: Fig. 1, the structural representation of this indicating snap gauge embodiment one:

Fig. 2, the structural representation of this indicating snap gauge V-type measuring head;

Fig. 3, this indicating snap gauge embodiment two structural representations.

Embodiment: as shown in Figure 1, 2, this indicating snap gauge mainly is made up of V-type measuring head 1 and dial bore gage 2, wherein the structure of V-type measuring head 1 as shown in Figure 2, front end is the V-type groove 3 that is 60 degree, the bottom through-hole 4 that is positioned on V-type groove 3 symmetrical center line is communicated with the hole slot 5 of rear end, and through hole 4 and hole slot 5 are coaxial to be center line with 3 symmetrical center line of V-type groove all; Dial bore gage 2 stretches into from the hole slot 5 of V-type measuring head rear end, and is fixing by bolt 6, and makes the measuring head of dial bore gage pass through hole 4 to be positioned at V-type groove 3.As shown in Figure 3, when the measuring head of dial gauge fell short of, dial gauge 2 was fastenedly connected with the extension bar 8 that movable measuring head 7 is installed, and locked by lock-screw, and was connected with V-type measuring head 1 by extension bar 8; Wherein movable measuring head 7 overlaps with the symmetrical center line of V-type groove 3, and movable measuring head 7 can be changed.Certainly, dial bore gage 2 wherein also can be the dried submeter of internal diameter.This indicating snap gauge is " the relatively measurer " that is used for measuring a kind of precision of external diameter and form accuracy thereof, its reading accuracy is 0.01mm, can have complete interchangeable movable measuring head, measurement range has 18～100mm, 200～300mm, 300～400 etc. several.When measuring workpieces, for example measure the workpiece 9 of ∮ 60, at first use standard length bar or the check and correction length bar of ∮ 60, indicating snap gauge is proofreaded, determine the position of dial gauge pointer indication, with the good indicating snap gauge of check and correction workpiece 9 is measured then, the just pendulum numerical value of dial gauge pointer about normal place during measurement is the dimensional discrepancy of workpiece with respect to ∮ 60.With the little position that movable measuring head radially blocks workpiece, on table, carry out reading, just can measure the concrete size of workpiece, measurement numerical value at this moment is exactly the radius distance value of workpiece, thereby especially is fit to the processing revolving body workpieces.Because revolving body workpieces adds man-hour, 1 millimeter of the every feeding of cutter, workpiece just cuts 2 millimeters, and the numerical value that this indicating snap gauge is measured is radius distance value, just in time is tool feeding numerical value, can reduce the error of workman when processing parts.This indicating snap gauge uses simple, is suitable for the measurement in the processing in enormous quantities, and alternative calliper acts in machining, has reduced consumption; Also because of its restriction that do not taken measurement of an angle, the space that measuring head occupies is little, thus just very convenient when the measurement of big workpiece and special workpiece, only need a little position of measuring workpieces, just can draw the numerical value of external diameter.

Claims

1, a kind of indicating snap gauge is characterized in that: described indicating snap gauge is to be made of with the dial bore gage that is fixed on the described measuring head 60 degree V-type measuring heads.

2, indicating snap gauge as claimed in claim 1, it is characterized in that: the front end of described V-type measuring head (1) is the V-type groove (3) that is 60 degree, the bottom through-hole (4) that is positioned on V-type groove (3) symmetrical center line is communicated with the hole slot (5) of rear end, and through hole (4) and hole slot (5) are coaxial to be center line with (3) symmetrical center line of V-type groove all.

3, as claim 1,2 described indicating snap gauges, it is characterized in that: described dial bore gage (2) stretches into from the hole slot (5) of V-type measuring head rear end, and fixing by bolt (6), the measuring head of described dial gauge passes through hole (4) and is positioned at V-type groove (3).

4, indicating snap gauge as claimed in claim 1 is characterized in that: described dial gauge (2) is fastenedly connected with the extension bar (8) that movable measuring head (7) are installed, and is connected with described V-type measuring head (1) by described extension bar (8).

5, as claim 1,4 described indicating snap gauges, it is characterized in that: described movable measuring head (7) overlaps with the symmetrical center line of described V-type groove (3).