Stabilizing device for measuring percentage elongation after fracture of rod and wire

Abstract

The utility model provides a stabilizing device for measuring the percentage elongation after fracture of a rod wire, which comprises a support and a bracket arranged on the support and used for placing the rod wire, a groove is arranged on the upper surface of the bracket along the extension direction of the bracket, and the groove is a V-shaped groove or an arc-shaped groove. The support comprises two square stand columns, the square stand columns are vertically arranged, the bracket is arranged on the top faces of the square stand columns, and bottom plates extending out of the bottom faces of the square stand columns are arranged on the bottom faces of the square stand columns. According to the technical scheme provided by the utility model, broken rods and wires can be stably placed, so that testers can be helped to quickly complete work such as fracture alignment and dotting spacing measurement, the measurement time is shortened, the test efficiency is improved, the data accuracy is ensured, and the device is suitable for popularization and application in the field of rod and wire tensile test detection auxiliary devices.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of bar and wire rod tensile test detection auxiliary device, and relates to a stable device, especially a stable device for measuring bar and wire rod elongation after fracture. BACKGROUND

[0002] Bar and wire rod tensile test is to detect the yield, tensile strength, elongation after fracture and other performance indicators of bar and wire rod, and is a necessary performance detection process before product delivery. Before the tensile test of bar and wire rod, a marking machine is used to make marks on the surface of the bar and wire rod in advance, then the bar and wire rod is clamped in the upper and lower clamping ports of the tensile testing machine, and the bar and wire rod is subjected to tensile operation, after the tensile test is completed, the machine is depressurized, the tensile testing machine is turned off, and the upper and lower broken samples are taken down and placed on the operation platform, the two broken samples are placed on the operation platform for reconnection of the fracture, the elongation distance between the marking intervals is measured, and then the elongation after fracture is calculated. At present, the sample is difficult to align due to the forward and backward rolling, and each measurement process needs 40-50s. Even if the experimenter is skilled, he still needs to be highly concentrated, but the efficiency is still low, and problems such as inaccurate measurement data often occur, which affects the test progress. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a stable device for measuring bar and wire rod elongation after fracture, so as to solve the technical problems of sample alignment difficulty, long measurement time, low efficiency and inaccurate data caused by sample forward and backward rolling in the prior art.

[0004] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows:

[0005] A stable device for measuring bar and wire rod elongation after fracture, comprising a bracket and a bracket arranged on the bracket for placing bar and wire rod, the upper surface of the bracket is provided with a groove along the extension direction of the bracket, the groove opening is upward, and the groove is a V-shaped groove or an arc-shaped groove.

[0006] The bracket comprises two square columns, the square columns are vertically arranged, the bracket is arranged on the top surface of the square column, and the bottom surface of the square column is provided with a bottom plate extending out of the bottom surface.

[0007] Two square columns are fixed with a reinforcing beam.

[0008] The bracket comprises a connecting rod and a reverse V-shaped frame, the number of the reverse V-shaped frame is two groups, and the two groups are arranged at the two ends of the connecting rod, each group of reverse V-shaped frame comprises a main frame and a vice frame, the upper ends of the main frame and the vice frame are respectively connected through the connecting rod, and the middle parts are connected through a limiting lock, the top surface of the main frame is higher than that of the vice frame, and the bracket is fixed on the top surface of the main frame of the two groups of reverse V-shaped frame.

[0009] The beneficial effects of this utility model are as follows: By providing a stable device for measuring the elongation at break of bar and wire, and by setting a bracket with a V-shaped groove or an arc-shaped groove, the bar and wire can be stably placed in the groove of the bracket, thereby effectively preventing the sample from rolling back and forth when the fracture ends are joined. This not only shortens the alignment and measurement time, but also effectively improves the accuracy of the measurement and ensures the accuracy of the data. In addition, the technical solution provided by this utility model has a simple and lightweight structure. The inverted V-shaped bracket has good stability during use, is easy to store and transport to other tensile testing machines for operation, and is easy to maintain. It is suitable for widespread application in the tensile testing of bar and wire. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of this utility model;

[0011] Figure 2 This is a schematic diagram of the main structure of Embodiment 2 of this utility model;

[0012] The markings in the diagram are as follows: 1. Bracket, 2. V-groove, 3. Square column, 4. Base plate, 5. Reinforcing beam, 6. Connecting rod, 7. Main frame, 8. Sub-frame, 9. Limit lock. Detailed Implementation

[0013] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model is provided below with reference to the accompanying drawings.

[0014] Example 1: As Figure 1 As shown, this utility model provides a stable device for measuring the elongation at break of bar and wire rods. It includes a support and a bracket 1 set on the support for placing the bar and wire rods. The upper surface of the bracket 1 is provided with a groove along the extension direction of the bracket 1. The groove opens upward and is a V-shaped groove 2 or an arc-shaped groove. In this embodiment, a V-shaped groove 2 is preferred. The included angle of the V-shaped groove 2 is in the range of 30°-80°, preferably 60°. Placing the bar and wire rods in the V-shaped groove 2 can effectively prevent them from rolling, thereby helping the experimenter to perform fracture splicing.

[0015] Furthermore, the support can take various forms, such as a four-legged support or other types. In this embodiment, the support includes two square columns 3, which are vertically arranged. The bracket 1 is disposed on the top surface of the square columns 3, and the bottom surface of the square columns 3 is provided with a base plate 4 extending out of its bottom surface to facilitate the vertical placement of the square columns 3. In addition, to further improve the stability of the device, a reinforcing beam 5 is fixed between the two square columns 3 in this embodiment.

[0016] Example 2:

[0017] The difference between the embodiment and the embodiment one is only the design of the support, as shown in the embodiment, in order to improve the stability of the support and make it convenient to store and move, the support comprises connecting rods 6 and inverted V-shaped frames, the number of the inverted V-shaped frames is two groups, which are arranged at two ends of the connecting rods 6 respectively, each group of the inverted V-shaped frames comprises a main frame 7 and a sub-frame 8, the upper ends of the main frame 7 and the sub-frame 8 are hinged through the connecting rod 6 respectively, the middle parts are connected through a limiting lock 9, the top surface of the main frame 7 is higher than that of the sub-frame 8, and the bracket 1 is fixed on the top surface of the main frame 7 of the two groups of the inverted V-shaped frames. The opening or folding of the inverted V-shaped frame is controlled through the limiting lock 9, when the support is opened, the lower ends of the main frame 7 and the sub-frame 8 are separated and present an inverted V shape, and the stability is good during the test and the support is not easy to fall down. Figure 2

[0018] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and scope of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed here, and all embodiments falling within the scope of the claims of the application belong to the range protected by the utility model.​

Claims

1. A stable device for measuring the elongation at break of bar and wire, characterized in that: It includes a support and a bracket (1) for placing rod wire, the upper surface of the bracket (1) is provided with a groove along the extension direction of the bracket (1), the groove is opened upward and is a V-shaped groove (2) or an arc-shaped groove.

2. A fixture for measuring the percent elongation at break of a wire rod according to claim 1, wherein: The support includes a connecting rod (6) and two groups of inverted V-shaped frames, which are arranged at the two ends of the connecting rod (6) respectively, each group of inverted V-shaped frames includes a main frame (7) and a sub-frame (8), the upper ends of the main frame (7) and the sub-frame (8) are hinged through the connecting rod (6) respectively, the middle parts are connected through a limiting lock (9), the top surface of the main frame (7) is higher than that of the sub-frame (8), and the bracket (1) is fixed on the top surface of the main frame (7) of the two groups of inverted V-shaped frames.

3. The apparatus according to claim 1, wherein the apparatus is characterized by: The support includes two square columns (3), the square columns (3) are vertically arranged, the bracket (1) is arranged on the top surface of the square columns (3), and the bottom surface of the square columns (3) is provided with a bottom plate (4) extending out of the bottom surface; the two square columns (3) are fixed with a reinforcing cross beam (5).

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