CN210604159U

CN210604159U - Tensile sample detection device

Info

Publication number: CN210604159U
Application number: CN201920758989.0U
Authority: CN
Inventors: 张宝良
Original assignee: Dalian Bingshan Metal Technology Co Ltd
Current assignee: Dalian Bingshan Metal Technology Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-05-22
Anticipated expiration: 2029-05-24

Abstract

The utility model relates to a mechanical properties of materials inspection technical field, concretely relates to tensile sample detection device. Set up the V type groove that is used for placing the sample on the base, V type groove both ends are connected and can be in inslot gliding fixing bolt, and V type groove below is equipped with two sets of scribers and the guide rail sliding connection on the base, has the scale that is used for two scribes intervals of mark scriber between V type groove and the scriber. The utility model discloses have the scale on the device, can be easy adjust the gauge length value with two scriber intervals. The V-shaped groove and the two-end fixing bolts on the device can fix the sample stably in the groove, the rear end of the scriber is fixed with a spring, the scriber is suitable for making gauge length scratches on samples of different diameters, the sample cannot be damaged, the time for making the gauge length on a tensile sample is reduced to 30 seconds from 50 seconds of the original method, and the accuracy and the efficiency of making the gauge length are greatly improved.

Description

Tensile sample detection device

Technical Field

The utility model relates to a mechanical properties of materials inspection technical field, concretely relates to tensile sample detection device.

Background

The detection of the mechanical property of the material is an important work of physicochemical inspection, the tensile strength, the yield strength and the elongation of the material are detected from tensile samples, and the factory needs to perform the inspection of the tensile samples for dozens of times every day.

The first step of the tensile test is to perform basic data measurements and identification of the tensile test specimen. In order to measure the yield strength and the elongation percentage of the sample, before the sample is subjected to a tensile test, standard distance marks are made on the effective section of the sample according to the diameter of the sample, after the sample is broken, the distance between the marks is measured, and the elongation percentage and the yield strength of the sample are measured according to the distance change between the marks.

Standard distance marking of tensile specimens is a relatively complex task. The previous method for making gauge length marks on a sample is as follows: firstly, the effective section of the sample is blackened by a carbon pen, then the caliper is adjusted to a standard distance, and the caliper is used for marking a gauge length scratch on the effective section. Because the sample is cylindrical, there is a certain degree of difficulty in making accurate gauge length scratches thereon.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned technical problem, accurate for convenient operation and gauge length mark, provide a tensile sample detection device, be applicable to the gauge length mark process before the test of tensile sample mechanical properties.

The utility model discloses a realize that the technical scheme who takes of above-mentioned purpose does: tensile sample detection device, characterized by: set up the V type groove that is used for placing the sample on the base, V type groove both ends are connected and can be in inslot gliding fixing bolt, and V type groove below is equipped with two sets of scribers and the guide rail sliding connection on the base, has the scale that is used for two scribes intervals of mark scriber between V type groove and the scriber.

The scriber comprises a scriber, a spring and a moving block, wherein the moving block is connected to the guide rail in a sliding mode, and the rear end of the scriber is connected with the spring in the moving block.

The measuring range of the graduated scale is 0-70 mm, and the division value is 1 mm.

The utility model discloses have the scale on the device, can be easy adjust the gauge length value with two scriber intervals. The V-shaped groove and the two-end fixing bolts on the device can fix the sample stably in the groove, the rear end of the scriber is fixed with a spring, the scriber is suitable for making gauge length scratches on samples of different diameters, the sample cannot be damaged, the time for making the gauge length on a tensile sample is reduced to 30 seconds from 50 seconds of the original method, and the accuracy and the efficiency of making the gauge length are greatly improved.

Drawings

Fig. 1 is a drawing of a tensile sample of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a cross-sectional view of the scribe.

In the figure: the device comprises a base 1, a graduated scale 2, a guide rail 3, a scriber 4-1, a spring 4-2, a moving block 4-3, a V-shaped groove 5, a fixing bolt 6, a standard distance S, a sample length L and a sample diameter D.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the specific embodiments.

Examples

As shown in fig. 2, in the tensile sample detection device, a base 1 is provided with a V-shaped groove 5 for placing a sample, two ends of the V-shaped groove 5 are connected with fixing bolts 6 capable of sliding in the groove, two groups of scribers 4 are arranged below the V-shaped groove 5 and are in sliding connection with guide rails 3 on the base 1, a graduated scale 2 for marking the distance between two scribes 4 and 1 of the scribers 4 is arranged between the V-shaped groove 5 and the scribers 4, the measuring range of the graduated scale 2 is 0-70 mm, and the division value is 1 mm.

As shown in fig. 3, the scriber 4 comprises a scriber 4-1, a spring 4-2 and a moving block 4-3, wherein the moving block 4-3 is connected to the guide rail 3 in a sliding manner, and the rear end of the scriber 4-1 is connected with the spring 4-2 in the moving block 4-3.

The utility model discloses a concrete application method as follows:

(1) the surfaces of the areas on both sides of the effective section of the tensile sample are blackened by a carbon pen, such as the grid area in fig. 1.

(2) The distance between the two scribers 4 is adjusted well, and the distance between the needle heads of the two scribers 4-1 is ensured to be the standard distance S of the sample.

(3) And placing the tensile sample in the V-shaped groove 5, and making the center of the sample coincide with the center of the distance between the two scribers 4 as much as possible. The sample is fixed by fixing bolts 6 at two ends of the device. The tip of the scriber 4-1 is tightly contacted with the surface of the sample under the action of the rear spring 4-2.

(4) The sample is rotated, the tip of the scriber 4-1 draws two clear scratches on the surface (carbon smearing area) of the sample, and the distance between the two scratches is the set standard distance S.

(5) The fixing bolt 6 is unscrewed, and the tensile test can be carried out by detaching the test sample. The sample can be put back into the V-shaped groove 5 after being pulled off, and the length after being broken is measured.

Use the utility model discloses the device, can be fast, accurate draw the gauge length mar on the sample surface. After measurement and calculation, after the device is used, the time for making the gauge length on a tensile sample is reduced from 50 seconds of the original method to 30 seconds, and the accuracy of making the gauge length is greatly improved.

Claims

1. Tensile sample detection device, characterized by: a V-shaped groove (5) for placing a sample is formed in the base (1), two ends of the V-shaped groove (5) are connected with fixing bolts (6) capable of sliding in the groove, two groups of scribers (4) are arranged below the V-shaped groove (5) and are in sliding connection with guide rails (3) on the base (1), and a graduated scale (2) used for marking the distance between two scribes (4-1) of the scribers (4) is arranged between the V-shaped groove (5) and the scribers (4).

2. The tensile specimen detection device according to claim 1, wherein: the scriber (4) comprises a scriber (4-1), a spring (4-2) and a moving block (4-3), wherein the moving block (4-3) is connected to the guide rail (3) in a sliding mode, and the rear end of the scriber (4-1) is connected with the spring (4-2) located in the moving block (4-3).

3. The tensile specimen detection device according to claim 1, wherein: the measuring range of the graduated scale (2) is 0-70 mm, and the division value is 1 mm.