CN-224231448-U - Rubber biaxial stretching clamp

Abstract

The utility model relates to a rubber biaxial stretching clamp, which comprises a base, wherein a bedplate is arranged at the upper end of the base, a circular carrier plate is detachably arranged at the center of the upper end of the bedplate, a plurality of positioning grooves are uniformly arranged at intervals along the circumferential direction at the edge of the circular carrier plate, a stretching mechanism is correspondingly arranged in each positioning groove, the stretching mechanism comprises a pull rope, one end of the pull rope is connected with a chuck, the other end of the pull rope bypasses a pulley to be connected with a lifting slide seat, the positioning grooves are used for positioning the chuck, the pulley is arranged at the edge of the base, and the lifting slide seat is arranged below the base. The clamping device has the advantages of reasonable structural design, good synchronism, convenience and reliability in clamping, high tensile strength testing precision and the like.

Inventors

• ZHANG TAO
• CUI HAIBO
• ZHANG PENGYU
• GAO JIA

Assignees

• 太原工业学院

Dates

Publication Date

20260512

Application Date

20250528

Claims (5)

1. 1. The utility model provides a rubber biaxial stretching anchor clamps, its characterized in that, includes the base, the base upper end is equipped with the platen, the center of platen upper end can be dismantled and be equipped with circular carrier plate, circular carrier plate limit portion is equipped with a plurality of constant head tanks along the even interval of circumferencial direction, and every constant head tank corresponds and is equipped with a stretching mechanism, stretching mechanism includes the stay cord, stay cord one end is connected with the chuck, and the pulley is connected with lift slide is walked around to the other end, the constant head tank fixes a position the chuck, the pulley sets up the limit portion at the base, lift slide sets up in the base below.
2. 2. The rubber biaxial stretching clamp according to claim 1, wherein the clamp comprises a clamp plate A, a clamp plate B is rotatably arranged on the clamp plate A, clamp columns are arranged on the inner sides of the clamp plate A and the clamp plate B, fastening bolts are arranged on the clamp plate B, a mounting block is arranged at the rear end of the clamp plate A, and the pull rope is connected to the mounting block.
3. 3. The rubber biaxial stretching clamp according to claim 2, wherein the upper end of the mounting block is provided with a guide post, the upper end of the guide post is designed into a cone shape, the corresponding bedplate is provided with a guide cover, the guide cover is uniformly provided with a plurality of guide holes at intervals along the circumferential direction, and the guide holes are designed into waist-shaped holes.
4. 4. A biaxial stretching clamp for rubber according to claim 3, wherein 16 positioning grooves are provided on the circular carrier plate.
5. 5. The biaxial stretching clamp for rubber according to claim 4, wherein the positioning groove is designed in a U shape.

Description

Rubber biaxial stretching clamp Technical field: the utility model relates to the technical field of rubber stretching clamps, in particular to a rubber biaxial stretching clamp. The background technology is as follows: Tensile strength is an important index for measuring the mechanical properties of rubber materials. Rubber tensile testing machines are commonly used in the prior art to test the tensile strength of rubber materials. In practical production and life, many rubber products are disc-shaped, and performance of the disc-shaped rubber products cannot be fully tested by only carrying out uniaxial tensile test on the disc-shaped rubber products, and particularly, the disc-shaped rubber products need to be simultaneously subjected to tensile test in all directions in application fields such as aerospace, heavy industry and the like. At present, biaxial stretching tests are commonly adopted for disc-shaped rubber products, for example, china patent discloses a biaxial stretching test bed and a biaxial stretching test method for rubber (application publication number: CN 117433892A), and the technical scheme realizes the biaxial stretching test for disc-shaped rubber. However, the disc-shaped rubber rim of this solution requires machining of the clamping portion (hole), whereas most of the actual products do not have clamping portions, which results in a different structure of the tested product than the actual product. In order to be able to better test the disc rubber it is necessary to optimally design the existing biaxial stretching clamps in order to better test the disc rubber product. The utility model comprises the following steps: The utility model aims to solve the problems in the prior art and provides the rubber biaxial stretching clamp which has the advantages of reasonable structural design, good synchronism, convenience and reliability in clamping, high tensile strength testing precision and the like. The utility model realizes the aim by adopting the following technical scheme: The utility model provides a rubber biaxial stretching anchor clamps, includes the base, the base upper end is equipped with the platen, the center of platen upper end can be dismantled and be equipped with circular carrier plate, circular carrier plate limit portion is equipped with a plurality of constant head tanks along the even interval of circumferencial direction, and every constant head tank corresponds and is equipped with a stretching mechanism, stretching mechanism includes the stay cord, stay cord one end is connected with the chuck, and the pulley is connected with lift slide is walked around to the other end, the constant head tank fixes a position the chuck, the pulley sets up the limit portion at the base, lift slide sets up in the base below. The chuck comprises a chuck plate A, a chuck plate B is rotationally arranged on the chuck plate A, clamping columns are arranged on the inner sides of the chuck plate A and the chuck plate B, fastening bolts are arranged on the chuck plate B, an installation block is arranged at the rear end of the chuck plate A, and a pull rope is connected to the installation block. The mounting block is characterized in that a guide post is arranged at the upper end of the mounting block, the upper end of the guide post is designed into a cone shape, a guide cover is arranged on the platen correspondingly, a plurality of guide holes are uniformly formed in the guide cover at intervals along the circumferential direction, and the guide holes are designed into waist-shaped holes. The circular carrier plate is provided with 16 positioning grooves. The positioning groove is designed into a U shape. The utility model adopts the structure, and has the following beneficial effects: Through designing circular carrier plate and designing the positioning groove above that, realize the guide effect to disk rubber location, chuck location and to the initial tensile of chuck, ensure that the chuck can evenly centre gripping on disk rubber, need not to process clamping hole (portion) additional on disk rubber, guarantee that test product keeps unanimous with actual product, help improving tensile strength test result degree of accuracy. Description of the drawings: FIG. 1 is a schematic top view of a biaxial stretching clamp for rubber according to the present utility model; FIG. 2 is a schematic side view of the stretching mechanism of the present utility model; FIG. 3 is an enlarged view of part A of FIG. 2; FIG. 4 is a schematic view of a circular carrier plate according to the present utility model; FIG. 5 is a schematic view of the structure of the rubber biaxial stretching clamp mounting disc rubber of the present utility model; FIG. 6 is a schematic view of the structure of the mounting guide cover of the rubber biaxial stretching clamp of the present utility model; In the figure, 1, a base, 2, a bedplate, 3, a circular carrier plate, 4, a positioning groove, 5, a stretching me