CN202018255U

CN202018255U - Special slide caliper

Info

Publication number: CN202018255U
Application number: CN2011200820587U
Authority: CN
Inventors: 于婧
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-25
Filing date: 2011-03-25
Publication date: 2011-10-26
Anticipated expiration: 2021-03-25

Abstract

The utility model relates to a special slide caliper. The special slide caliper comprises a fixed graduated scale, vernier graduation, an outside caliper and an inside caliper; the measurement edge of the inside caliper is provided with a groove, the height of the groove is consistent with the depth of the inner hole of a measured product, and the end of the inside caliper 4 is provided with a transverse protruding claw; during measurement, the plane A on one side of the groove is propped against the end face of the measured product, the transverse protruding claw at the end of the inside caliper can measure the inside diameter of a tangent point B at the deep hole and measure the inside diameter of the upper end, and the gradient can be calculated for judging whether the gradient of the inner hole of the measured product is accurate, wherein the tangent point B is the tangent point of the inner arc and the oblique line of the inner hole. The utility model has the advantages that: the special slide caliper can be used as a special measurement tool with gradient for measuring the depth of the inner hole of the measured product, and is simple in structure, accurate in measurement and easy to manufacture.

Description

Special-purpose vernier caliper

Technical field

The utility model relates to a kind of vernier caliper, and the test product that particularly relates to a kind of measurement is in batches big, output is high and accuracy requirement is high, and the interior hole depth of test product and have the special-purpose vernier caliper of gradient.

Background technology

As everyone knows, at present, the interior card of the vernier caliper of Chu Shouing can only be measured the shallow workpiece of endoporus on the market, when the interior hole depth of workpiece and have gradient and to the necessary accurate and accuracy requirement in the position of each workpiece calibration point when high, existing vernier caliper just can't use.

Summary of the invention

The utility model is for solving the special-purpose vernier caliper that the technical matters that exists in the known technology provides a kind of interior hole depth of test product and has gradient.

The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: it comprises fixedly rule, vernier graduation, wild card and Nei Ka, it is characterized in that: the measurement limit recessing of interior card, the height of groove is consistent with the degree of depth of test product endoporus, in be stuck in recessing place the end be provided with laterally prominent pawl.

Advantage and the good effect that the utlity model has are: it is to measure specially that test product is in batches big, output is high and accuracy requirement is high, and the interior hole depth of test product and have the special measurement apparatus of gradient, and is simple in structure, measures accurately, makes easily.

Description of drawings

Fig. 1 is special-purpose vernier caliper one-piece construction synoptic diagram;

Fig. 2 is the structural representation of special-purpose vernier caliper and measured workpiece.

Among Fig. 1-Fig. 2: 1. fixing rule, 2. vernier graduation, 3. wild card,

4. interior card is 5. measured the limit, 6. groove, and 7. laterally prominent pawl, 8. gradient, the A. plane,

B. point of contact.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows, see also Fig. 1, Fig. 2.

As shown in Figure 1: special-purpose vernier caliper comprises fixedly rule 1, vernier graduation 2, wild card 3 and Nei Ka 4, measurement limit 5 recessings 6 of interior card 4, the height of groove 6 is consistent with the degree of depth of test product endoporus, during measurement, as shown in Figure 2: groove 6 A planar top on one side is in the end of test product, card 4 can be measured the internal diameter at B point of contact, deep hole place at the laterally prominent pawl 7 of end, recessing 6 place then, the internal diameter of measuring the upper end again can calculate gradient, whether correct in order to the gradient 8 of judging the test product endoporus, described B point of contact promptly in the points of tangency of circular arc and endoporus oblique line.

Its advantage is: can be used as the interior hole depth and the special measurement apparatus that has gradient of test product, and simple in structure, measure accurately, make easily.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection domain of the utility model claims.

Claims

1. special-purpose vernier caliper, it comprises fixedly rule (1), vernier graduation (2), wild card (3) and interior card (4), it is characterized in that: measurement limit (5) recessing (6) of interior card (4), the height of groove (6) is consistent with the degree of depth of test product endoporus, and interior card (4) is provided with laterally prominent pawl (7) in the end that recessing (6) is located.