CN206832158U - Yi shape steel long leg length detection model - Google Patents

Abstract

The utility model discloses a detection model capable of quickly detecting whether the length of a long leg of a B-shaped steel is qualified. B-shaped steel long leg length detection template, including "T"-shaped sample body, the two sides of the sample body are positive detection side and negative detection side respectively, the length of the positive detection side is greater than the length of the negative detection side, the negative detection side The length difference between the positive detection side and the positive detection side is ≤4mm; the wing corresponding to the positive detection side is a positive wing, and the wing corresponding to the negative detection side is a negative wing, and the width of the positive wing is smaller than that of the negative wing width. The two sides of the utility model are respectively attached to the long legs of the B-shaped steel, and the gap between the detection template wing plate and the top of the B-shaped steel long legs and the gap between the bottom end of the detection template and the bottom of the B-shaped steel long legs are observed. Whether the size of the long leg of the B-shaped steel is qualified or not can be known through the gap. The utility model has the advantages of simple structure, convenient use and high detection efficiency, and is especially suitable for workshop production.

Description

B-shaped steel long leg length test sample

technical field

The utility model relates to the field of detection tools, in particular to a detection model for the length of a B-shaped steel long leg.

Background technique

B-shaped steel is used to manufacture the middle beam of railway wagons. The standard issued by the Ministry of Railways "Yunxiang Freight Car [2004] No. 264 "Technical Conditions for Hot-rolled 310 B-shaped Steel for Atmospheric Corrosion Resistance for Railway Freight Wagons (Provisional)" specifies the size and size of the section steel. There are strict requirements on the allowable deviation. Among the many dimensions of the B-shaped steel, the length of the inner cavity of the long leg is very important, and the requirements on the allowable deviation of the size are also relatively strict. In routine testing work, vernier calipers or micrometers are generally used. However, due to the large number of production requirements for B-shaped steel, if conventional testing tools are used for testing, it will take a lot of time and cannot meet the requirements of production time.

Utility model content

The technical problem to be solved by the utility model is to provide a detection model that can quickly detect whether the length of the long leg of the B-shaped steel is qualified.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: the B-shaped steel long-leg length detection template includes a "T"-shaped sample body, and the two sides of the sample body are respectively positive detection sides and negative detection sides. The length of the positive detection side is greater than the length of the negative detection side, and the length difference between the negative detection side and the positive detection side is ≤4mm; the wing corresponding to the positive detection side is a positive wing, and the corresponding wing to the negative detection side It is a negative wing plate, and the width of the positive wing plate is smaller than the width of the negative wing plate.

Further, the length of the positive detection side is 176 mm, and the length of the negative detection side is 172 mm.

Further, both the positive detection side and the negative detection side are excessively chamfered with the bottom side of the template body.

Further, the positive detection side and the positive wing are at right angles, and the negative detection side is at right angles to the negative wing.

The beneficial effects of the utility model are: the two sides of the utility model are respectively attached to the long legs of the B-shaped steel, and the gap between the flange of the template and the top of the long legs of the B-shaped steel is detected by observing the gap between the bottom end of the template and the B-shaped steel. The gap between the bottom ends of the long steel legs can tell whether the size of the long steel legs is qualified. The utility model has the advantages of simple structure, convenient use and high detection efficiency, and is especially suitable for workshop production.

Description of drawings

Fig. 1 is the schematic diagram of the utility model;

Fig. 2 is the schematic diagram of the first step when the utility model detects;

Fig. 3 is the schematic diagram of the second step when the utility model detects;

The marks in the figure are: 1-template body, 2-positive detection side, 3-negative detection side, 4-positive wing, 5-negative wing, 6-B-shaped steel.

detailed description

In order to facilitate understanding of the utility model, the utility model is further described below in conjunction with the accompanying drawings.

As shown in Figure 1, the utility model B-shaped steel long leg length detection template includes a "T"-shaped sample body 1, and the two sides of the sample body 1 are positive detection sides 2 and negative detection sides 3 respectively, and the positive detection The length of the side 2 is greater than the length of the negative detection side 3. According to the standard issued by the Ministry of Railways, "Shipping Freight Cars [2004] No. 264 "Technical Conditions for Hot-rolled 310 B-shaped Steel for Atmospheric Corrosion Resistance (Provisional)" for Railway Freight Cars, the B-shaped steel The tolerance range of the length of the long leg is ±2mm, so the length difference between the negative detection side 3 and the positive detection side 2 should be ≤4mm; the wing corresponding to the positive detection side 2 is the positive wing 4, and the negative detection side 3- The wing plate corresponding to the side is the negative wing plate 5, and the width of the positive wing plate 4 is smaller than the width of the negative wing plate 5.

The utility model is suitable for detecting the length of the long legs of B-shaped steels of different sizes. Since the length of the long legs of the commonly used B-shaped steel 6 is 174mm, it is determined according to the tolerance range of the length of the long legs of the B-shaped steel. The length of the positive detection side 2 is 176mm, and the negative The length of the detection side 3 is 172 mm, and the length difference between the two meets the appeal requirement.

As shown in Figure 2 and Figure 3, since the inner side of the connection between the long leg of the B-shaped steel 6 and the middle section of the B-shaped steel 6 is a rounded corner, in order to closely fit the two detection sides of the sample body 1 to the long leg when testing, Set the connection between the positive detection side 2 and the negative detection side 3 and the bottom edge of the template body 1 as excessive chamfering. The length of the hypotenuse of this chamfer should be greater than the diameter of the above-mentioned fillet, so that the two will not interfere with each other. Can guarantee the accuracy of detection.

As shown in Figures 2 and 3, the positive detection side 2 and the positive wing plate 4 are set at right angles, and the negative detection side 3 and the negative wing plate 5 are set at right angles. It can fit tightly, and there will be no error during detection.

When utilizing the utility model to detect the length of the long legs of the B-shaped steel 6, as shown in Figure 2, the negative detection side 3 of the template body 1 is attached to the inside of the long legs of the B-shaped steel 6, and the negative wing plate 5 The lower end surface is attached to the top surface of the long leg. At this time, if the gap value between the bottom end surface of the template body 1 and the end surface of the middle section of the B-shaped steel 6 is not 0, the detection of the negative detection side 3 is qualified; then as shown in Figure 3 As shown, the positive detection side 2 of the sample body 1 is attached to the inner side of the long leg of the B-shaped steel 6, and the ground section of the sample body 1 is abutted against the middle end face of the B-shaped steel 6. At this time, if the positive wing plate 4 and the B-shaped steel If the gap value between the top surfaces of the long legs of 6 is not 0, then the detection by the positive detection side 2 is qualified; if the detection of the positive detection side 2 and the negative detection side 3 are both qualified, then the length of the long legs of the B-shaped steel 6 is qualified.

Claims (4)

1. Yi shape steel long leg length detection model, it is characterised in that：Model body (1) including T-shape, model body (1) Two sides are respectively just to detect at (2) and negative detection (3), the positive length for detecting when the length of (2) is more than negative detection (3) Degree, bear length difference≤4mm of the detection at (3) and positive detection between (2)；Wing plate corresponding to positive detection side (2) side is the positive wing Plate (4), wing plate corresponding to detection side (3) side is born as negative wing plate (5), the width of positive wing plate (4) is less than the width of negative wing plate (5) Degree.

2. Yi shape steel long leg length detection model as claimed in claim 1, it is characterised in that：The length of positive detection side (2) Spend for 176mm, the length for bearing detection side (3) is 172mm.

3. Yi shape steel long leg length detection model as claimed in claim 1 or 2, it is characterised in that：Positive detection side (2) and Negative detection side (3) is all excessive with the base chamfering of model body (1).

4. Yi shape steel long leg length detection model as claimed in claim 1 or 2, it is characterised in that：Positive detection side (2) with Positive wing plate (4) right-angle transition, bears detection side (3) and negative wing plate (5) right-angle transition.