CN211504917U

CN211504917U - Original mark of tensile sample scriber auxiliary device for mechanical test

Info

Publication number: CN211504917U
Application number: CN202020053821.2U
Authority: CN
Inventors: 汪涛; 曹秋野; 周燕; 陈莉; 罗屏; 潘燕明
Original assignee: Wuhan Iron and Steel Group Kunming Iron and Steel Co Ltd
Current assignee: Wuhan Iron and Steel Group Kunming Iron and Steel Co Ltd
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-09-15
Anticipated expiration: 2030-01-11

Abstract

The utility model discloses a tensile sample original marking data ruling auxiliary device for mechanical test, which comprises a bottom plate, a support, a large-size plate sample fixing sinking platform, a small-size plate sample fixing sinking platform, a groove, a fixed stop block and a locking screw, wherein the two end parts of the bottom plate are respectively provided with the fixed stop block; the two ends of the fixed block are L-shaped; the L-shaped end of the fixed block is matched with the side of the bottom plate; the L-shaped end part of the fixed stop block is provided with a locking screw; the end of the locking screw is tightly contacted and matched with the side edge of the bottom plate; a support is arranged between the two fixed stop blocks on the upper surface of the bottom plate; a sinking platform for fixing a large-size plate sample is arranged on the upper surface of the support; a sinking platform for fixing a small-size plate sample is arranged below the sinking platform for fixing a large-size plate sample on the support; a groove is formed in the bottom of the sinking platform for fixing the small-size plate sample on the support. The utility model discloses simple structure, the ruling is accurate, the reliable operation.

Description

Original mark of tensile sample scriber auxiliary device for mechanical test

Technical Field

The utility model belongs to the technical field of experimental frock equipment, further belong to material mechanics test equipment technical field, concretely relates to simple structure, the ruling is accurate, and the reliable operation is original mark according to the auxiliary device that rules with tensile sample for mechanical testing.

Background

The mechanical tensile test of the metal material is an important means for testing the performance of the metal material, and the test can detect two major indexes of the strength and the plasticity of the performance of the metal material. The strength index refers to the yield strength and tensile strength of the metal material, and the plasticity refers to the elongation after fracture and the reduction of area of the metal material. The elongation after fracture is obtained by calculating and measuring the original gauge length. According to GB/T228.1-2010 part 1 of the tensile test of metallic materials: the elongation after break is defined as the percentage of the residual elongation of the gauge length after break compared to the original gauge length in the room temperature tensile test method. I.e., the ratio of the length added to the original gauge length in the gauge length portion of the specimen after it has been stretch broken, is referred to as the elongation after break. The original gauge length is calculated, where k is the coefficient and S0 is the original cross-sectional area of the sample. The original scale distance is scribed by uniformly scribing marks on the surface of a sample by a punch (or a scribing needle) through a special device, the marks are linear, the marks are called original marks, the distance of the marks is generally 5mm or 10mm, and the distance error between the marks is less than +/-1%. The currently used scale distance scribing device can achieve the purpose that the error between marks is less than +/-1%, but the sample supporting base is single in shape, a fixed groove of a plate sample is not arranged, and a V-shaped groove at the bottom of the sample supporting base is easy to rotate when the original mark scribing process of a small-diameter rod wire is carried out, so that the whole original mark line on the sample is not parallel to the axis of the sample after scale distance scribing is carried out, the measurement error is caused, and the real performance of a material cannot be reflected. Therefore, the key for solving the problem is to research and develop the auxiliary device for scribing the original standard data of the tensile sample for the mechanical test, which has the advantages of simple structure, accurate scribing and reliable work.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple structure, the ruling is accurate, and the reliable operation is original mark according to the ruling auxiliary device of tensile sample for the mechanical test.

The utility model aims at realizing the purpose, which comprises a bottom plate, a support, a sinking platform for fixing large-size plate samples, a sinking platform for fixing small-size plate samples, a groove, a fixed stop block and a locking screw, wherein the two end parts of the bottom plate are respectively provided with the fixed stop block; the two ends of the fixed stop block are L-shaped; the L-shaped end of the fixed block is matched with the side of the bottom plate; the L-shaped end part of the fixed stop block is provided with a locking screw; the end head of the locking screw is tightly contacted and matched with the side edge of the bottom plate; a support is arranged between the two fixed stop blocks on the upper surface of the bottom plate; a sinking platform for fixing a large-size plate sample is arranged on the upper surface of the support; a sinking platform for fixing a small-size plate sample is arranged below the sinking platform for fixing a large-size plate sample on the support; the bottom of the sinking platform for fixing the small-size plate sample on the support is provided with a groove.

The utility model comprises a bottom plate, a support, a fixed stop block and a locking screw, wherein the support is respectively provided with a large-size plate sample fixing sink table, a small-size plate sample fixing sink table and a groove, and the large-size plate sample fixing sink table is used for scribing original sample data with a P11 sample serial number in a rectangular cross section proportion sample in GB/T228.1-2010 standard appendix; the small-size plate sample fixing sinking platform is used for marking original standard data of a sample with a sample number of P9 in a rectangular cross section proportion sample in GB/T228.1-2010 standard appendix; the groove is used for marking original marks on a bar wire sample with the diameter phi of 6mm to phi of 10 mm.

During operation, the support is placed on the bottom plate, the two fixed stop blocks are installed on the bottom plate close to the two ends of the support, and the fixed stop blocks are fixed through the locking screws. When the original mark is scribed, whether the sample is placed on a sinking platform for fixing a large-size plate sample or a sinking platform for fixing a small-size plate sample is selected according to the width of the sample, the large-size sample is placed on the sinking platform for fixing the large-size plate sample, the small-size sample is placed on the sinking platform for fixing the small-size plate sample, the bottom groove is used for placing a small-diameter circular sample, and after the sample is placed, a scribing scriber (or a punch head) is put down to scribe the original mark.

The utility model discloses a position is selected to place to rectangle cross section proportion sample width, sample axis is parallel with original mark axis in carrying out original mark ruling in-process, and simultaneously, the easy rotatory problem of circular sample when having avoided carrying out original mark ruling to minor diameter stick wire material (phi 6mm to phi 10 mm), the measuring accuracy of elongation after having guaranteed the sample, ensure that the original mark ruling of sample accords with the standard distance requirement after 3.1.2 clause _ is disconnected in GB/T228.1-2010 standard, the ruling efficiency of the original mark of sample has been improved simultaneously.

The utility model discloses simple structure, the ruling is accurate, and reliable operation is the original mark according to the ruling auxiliary device of tensile sample for the mechanical test of an ideal.

Drawings

FIG. 1 is a three-dimensional schematic view of the overall structure of the present invention;

FIG. 2 is a schematic main sectional view of the support of the present invention;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a left side view of FIG. 2;

FIG. 5 is a schematic front view of a sample;

FIG. 6 is a top view of FIG. 5;

fig. 7 is a schematic view of the original working state of the support.

In the figure: 1-bottom plate, 2-support, 21-sinking table for fixing large-size plate sample, 22-sinking table for fixing small-size plate sample, 23-groove, 3-fixed stop block, 4-locking screw, 5-sample, 6-original support and 7-scriber.

Detailed Description

The following description of the present invention is further illustrated with reference to the accompanying drawings, but the present invention is not limited in any way, and all changes made based on the teaching of the present invention fall into the protection scope of the present invention.

As shown in fig. 1 to 7, the device comprises a bottom plate 1, a support 2, a large-size plate sample fixing sinking platform 21, a small-size plate sample fixing sinking platform 22, a groove 23, a fixing stopper 3 and a locking screw 4, wherein the fixing stoppers 3 are respectively arranged at two end parts of the bottom plate 1; the two ends of the fixed stop block 3 are L-shaped; the L-shaped end of the fixed block 3 is matched with the side of the bottom plate 1; the L-shaped end part of the fixed stop block 3 is provided with a locking screw 4; the end of the locking screw 4 is tightly contacted and matched with the side edge of the bottom plate 1; a support 2 is arranged between two fixed stop blocks 3 on the upper surface of the bottom plate 1; a sinking platform 21 for fixing a large-size plate sample is arranged on the upper surface of the support 2; a sinking platform 22 for fixing a small-size plate sample is arranged below the sinking platform 21 for fixing a large-size plate sample on the support 2; the bottom of the small-sized plate sample fixing sinking platform 22 on the support 2 is provided with a groove 23.

The L-shaped end of the fixed block 3 is in clearance fit with the side of the bottom plate 1.

The clearance between the L-shaped end of the fixed block 3 and the bottom plate 1 is 0.5 mm-1 mm.

The large-size plate sample fixing sink table 21 is symmetrically arranged at the center of the bottom plate 1.

The width of the sinking platform 21 for fixing the large-size plate sample meets the requirement of the width of a sample with the sample number of P11 in a rectangular cross section proportion sample in the GB/T228.1-2010 standard appendix.

The small-sized plate sample fixing sink 22 is symmetrically arranged with respect to the center of the base plate 1.

The width of the small-sized plate sample fixing sink table 22 meets the requirement of the width of a sample with the number of P9 in a rectangular cross section proportion sample in the GB/T228.1-2010 standard appendix.

The grooves 23 are arranged symmetrically with respect to the center of the bottom plate (1).

The width and depth of the groove 23 satisfy the requirement of original mark scribing and fixing of the bar wire sample with diameter phi 6mm to phi 10 mm.

The utility model discloses a theory of operation and working process:

the utility model discloses by bottom plate 1, support 2, fixed dog 3, locking screw 4 constitute, set up heavy platform 21 for the large size panel sample is fixed on support 2 respectively, heavy platform 22 for the small size panel sample is fixed, recess 23, heavy platform 21 for the large size panel sample is fixed is used for the original standard data ruling of the sample that the sample number is P11 in the rectangular cross section proportion sample in GB/T228.1-2010 standard annex; the small-size plate sample fixing sinking platform 22 is used for scribing an original standard data of a sample with a sample number of P9 in a rectangular cross section proportion sample in the GB/T228.1-2010 standard appendix; the groove 23 is used for originally marking a bar wire sample having a diameter phi of 6mm to 10 mm.

During operation, the support 2 is placed on the bottom plate 1, the two fixed stop blocks 3 are arranged on the bottom plate 1 by abutting against two ends of the support 2, and the fixed stop blocks 3 are fixed through the locking screws 4. When the original mark scribing is carried out, whether the sample 5 is placed on the large-size plate sample fixing sinking table 21 or the small-size plate sample fixing sinking table 22 is selected according to the width of the sample 5, the large-size sample 5 is placed on the large-size plate sample fixing sinking table 21, the small-size sample 5 is placed on the small-size plate sample fixing sinking table 22, the bottom groove 23 is used for placing a small-diameter round sample, and after the sample 5 is placed, the scribing needle 7 (or a punch head) is put down to carry out original mark scribing.

Claims

1. The utility model provides an original mark according ruling auxiliary device of tensile sample for mechanical test, includes bottom plate (1), support (2), the fixed heavy platform (21) of using of jumbo size panel sample, the fixed heavy platform (22) of using of small-size panel sample, recess (23), fixed dog (3), locking screw (4), characterized by: two ends of the bottom plate (1) are respectively provided with a fixed stop block (3); the two ends of the fixed stop block (3) are L-shaped; the L-shaped end part of the fixed stop block (3) is matched with the side edge of the bottom plate (1); the L-shaped end part of the fixed stop block (3) is provided with a locking screw (4); the end of the locking screw (4) is tightly contacted and matched with the side edge of the bottom plate (1); a support (2) is arranged between the two fixed stop blocks (3) on the upper surface of the bottom plate (1); a sinking platform (21) for fixing a large-size plate sample is arranged on the upper surface of the support (2); a sinking platform (22) for fixing a small-size plate sample is arranged below the sinking platform (21) for fixing a large-size plate sample on the support (2); a groove (23) is arranged at the bottom of the sinking platform (22) for fixing the small-size plate sample on the support (2).

2. The apparatus for assisting scribing of original specimen for tensile test in mechanical test according to claim 1, wherein: the L-shaped end of the fixed block (3) is in clearance fit with the side edge of the bottom plate (1).

3. The device for assisting in scribing original standards of tensile specimens for mechanical testing according to claim 1 or 2, wherein: the clearance between the L-shaped end part of the fixed stop block (3) and the bottom plate (1) is 0.5 mm-1 mm.

4. The apparatus for assisting scribing of original specimen for tensile test in mechanical test according to claim 1, wherein: the sinking platforms (21) for fixing the large-size plate samples are symmetrically arranged at the center of the bottom plate (1).

5. The apparatus for assisting scribing of original specimen for tensile test in mechanical test according to claim 1, wherein: the width of the sinking platform (21) for fixing the large-size plate sample meets the requirement of the width of a sample with the sample number of P11 in a rectangular cross section proportion sample in the GB/T228.1-2010 standard appendix.

6. The apparatus for assisting scribing of original specimen for tensile test in mechanical test according to claim 1, wherein: the small-size plate sample fixing sinking platforms (22) are symmetrically arranged at the center of the bottom plate (1).

7. The apparatus for assisting scribing of original specimen for tensile test in mechanical test according to claim 1, wherein: the width of the small-sized plate sample fixing sinking platform (22) meets the requirement of the width of a sample with the number of P9 in a rectangular cross section proportion sample in the GB/T228.1-2010 standard appendix.

8. The apparatus for assisting scribing of original specimen for tensile test in mechanical test according to claim 1, wherein: the grooves (23) are symmetrically arranged at the center of the bottom plate (1).

9. The apparatus for assisting scribing of original specimen for tensile test in mechanical test according to claim 1, wherein: the width and depth of the groove (23) satisfy the requirement of original mark scribing and fixing of the bar wire sample with the diameter phi 6mm to phi 10 mm.