CN-224231427-U - Sample adapter for tensile test

Abstract

The utility model discloses a sample adapter for a tensile test, which comprises an upper half part and a lower half part, wherein the upper half part is a stud, the lower half part is a cylinder, and the cylinder is provided with a screw hole or a rectangular opening along the axis of the cylinder. The utility model is connected with tensile test equipment, not only meets the requirement of carrying out loading tensile test on bar samples with different specifications and sizes, but also realizes the loading tensile test on the plate samples, and has simple structure. Convenient to use has improved the stability of sample centre gripping, has further improved tensile test's accuracy.

Inventors

• ZHANG LIANGLIANG
• XU LIJUN
• FAN JUN

Assignees

• 中航金属材料理化检测科技有限公司

Dates

Publication Date

20260512

Application Date

20250509

Claims (2)

1. 1. The sample adapter for the tensile test is characterized by comprising an upper half part and a lower half part which are connected, wherein the upper half part is a stud (1), the lower half part is a cylinder (3), a screw hole (2) or a rectangular opening (4) is formed in the cylinder (3) along the axis of the cylinder, the screw hole (2) comprises an S-shaped screw hole and a B-shaped screw hole, the diameter of the B-shaped screw hole is larger than that of the S-shaped screw hole, the rectangular opening (4) is provided with a plate locking mechanism, the plate locking mechanism comprises a bolt (8) penetrating the cylinder (3), the end of the bolt (8) is provided with a nut (6), the nut (6) is located on the outer side of the cylinder, the axis of the bolt (8) is perpendicular to the axis of the cylinder (3), the bolt (8) is located in the middle of the cylinder (3), the bolt (8) stretches into the cylinder (3) and stretches out of the cylinder (3), the fastening plane (7) is cut, the two fastening planes (7) are oppositely arranged on the side surface of the cylinder (3), the head of the bolt (8) and the nut (6) are respectively, the nut (7) are tightly attached to the fastening plane (9), and the bolt (9) is embedded in the cylindrical groove (5).
2. 2. The tensile test specimen adapter according to claim 1, wherein the upper half and the lower half are coaxially disposed.

Description

Sample adapter for tensile test Technical Field The utility model belongs to the technical field of tensile test equipment, and relates to a sample adapter for tensile test. Background The tensile testing machine is used for mechanical testing and analysis research of various metal, nonmetal and composite materials, and the working principle of the tensile testing machine is that a hydraulic pump is driven by a motor to press liquid into a hydraulic cylinder so as to form constant hydraulic pressure, and the hydraulic cylinder applies force to a test sample through a test clamp. According to JB, JIS, ASTM, DIN, ISO and other standards, the equipment can automatically obtain the test data such as the maximum test force value, the breaking force value, the yield, the strength, the up-down yield strength, the tensile strength, the compressive strength, the breaking elongation, the tensile elastic modulus, the bending elastic modulus and the like. With the rapid development of the technology in the field, related standards and technical indexes have higher requirements, the field test is not only concerned with the performance, the precision and the stability of a tensile testing machine, but also is required to consider the problems of adaptability of equipment clamps and the like, and the problems are particularly prominent in practical operation, because 1) the tensile testing machine is usually provided with only one group of inherent clamps, and therefore, the size and the specification of a test sample are limited. If the size of the bar for test is smaller, loading cannot be carried out, if the size of the bar for test is too large, the cost is increased, the molding difficulty is increased, and 2) the tensile testing machine can only realize the tensile test of the bar sample, and the specification of the test sample is too limited, such as a common plate sample, and the tensile test cannot be carried out because no suitable clamp exists. Disclosure of utility model The utility model aims to provide a sample adapter for a tensile test, which solves the problem that the existing clamp cannot load samples with different specifications. The utility model adopts the technical scheme that the sample adapter for the tensile test comprises an upper half part and a lower half part, wherein the upper half part is a stud, the lower half part is a cylinder, and the cylinder is provided with a screw hole or a rectangular opening along the axis of the cylinder. The utility model is also characterized in that: The upper part and the lower part are coaxially arranged. The screw holes comprise S-shaped screw holes and B-shaped screw holes, and the diameter of the B-shaped screw holes is larger than that of the S-shaped screw holes. The rectangular opening is provided with a plate locking mechanism. The plate locking mechanism comprises a bolt penetrating through the cylinder, a nut is arranged at the end of the bolt, the nut is positioned at the outer side of the cylinder, and the axis of the bolt is mutually perpendicular to the axis of the cylinder. The bolt is positioned in the middle of the column body. The bolt stretches into the cylinder and stretches out the cylinder and cuts and have the fastening plane, and two fastening planes are set up at cylinder side surface relatively, and the screw head and the nut of bolt are hugged closely two fastening planes respectively. A cylindrical groove is formed in the fastening plane, a lantern ring is embedded in the cylindrical groove, and the lantern ring is sleeved on a screw rod of the bolt. The beneficial effects of the utility model are as follows: The sample adapter for the tensile test is connected with tensile test equipment, so that the loading tensile test of bar samples with different specifications and different sizes is realized, the loading tensile test of the plate samples is realized, and the structure is simple. Convenient to use has improved the stability of sample centre gripping, has further improved tensile test's accuracy. Drawings FIG. 1 is a schematic view of a sample adapter for tensile testing according to the present utility model; FIG. 2 is a schematic view of a sample adapter for tensile testing according to the present utility model; FIG. 3 is an exploded view of sample adapter for tensile testing of example 6 of the present utility model; FIG. 4 is a schematic structural view of example 6 of a sample adapter for tensile test according to the present utility model. In the figure, a stud, a screw hole, a cylinder, a rectangular opening, a collar, a nut, a fastening plane, a bolt and a cylindrical groove are respectively arranged on the stud, the screw hole, the cylinder, the rectangular opening, the collar and the nut. Detailed Description The present utility model now will be described in detail with reference to the drawings and detailed description, wherein the described embodiments are provided by way of illustration only and not by way of