CN216955444U

CN216955444U - Clamp for tensile test of metal plate

Info

Publication number: CN216955444U
Application number: CN202122953381.3U
Authority: CN
Inventors: 陈雪莹; 杨涛; 谭伟; 陈红; 王玉肖
Original assignee: Deyang Products Quality Supervision & Inspection Institute; Deyang Reloading Detection Co ltd
Current assignee: Deyang Products Quality Supervision & Inspection Institute; Deyang Reloading Detection Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-12
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a clamp for a tensile test of a metal plate, which comprises a clamp bottom plate, wherein a left clamping plate and a right clamping plate are arranged on the clamp bottom plate in a sliding manner, the left clamping plate and the right clamping plate are arranged oppositely, a clamping space for clamping the metal plate is formed between the left clamping plate and the right clamping plate, the left clamping plate and the right clamping plate are both close to or far from the clamping space to move, and a clamping knife edge is fixed on one surface of the left clamping plate close to the right clamping plate and one surface of the right clamping plate close to the left clamping plate. Have higher clamping strength, guarantee not follow anchor clamps at tensile experiment's in-process sheet metal and drop for tensile experiment can be stable going on, be convenient for quick and accurate tensile experiment parameter of measuring sheet metal.

Description

Clamp for tensile experiment of metal plate

Technical Field

The utility model relates to the field of metal tensile experiments, in particular to a clamp for a metal plate tensile experiment.

Background

The tensile test is one of important indexes for detecting the tensile property of metal, an accurate marking line for a sample gauge length in the tensile test is an important parameter for ensuring the accuracy of a tensile result, the requirements of the tensile test on the used sample are different according to different metal materials, and the metal material tensile sample is mostly blocky, so that the clamping is convenient for the tensile test; the existing clamp for the experiment is used for avoiding the damage of parts caused by overhigh clamping strength, the general clamping strength is lower, and the tensile in-process can generate larger tensile stress because the tensile experiment is directed at metal tension, so that the stability of metal clamping is difficult to guarantee by the existing clamp, the shedding of the metal plate can be easily caused along with the increase of the tensile stress in the clamping process, the proceeding of the tensile experiment is influenced, and the tensile parameter of the metal plate can not be accurately measured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the clamp for the metal plate tensile test, which has higher clamping strength, ensures that the metal plate does not fall off from the clamp in the process of the tensile test, enables the tensile test to be stably carried out and is convenient for rapidly and accurately measuring the tensile test parameters of the metal plate.

The purpose of the utility model is realized by the following technical scheme: the utility model provides a sheet metal tensile anchor clamps for experiments, includes the anchor clamps bottom plate, it is provided with left splint and right splint to slide on the anchor clamps bottom plate, left side splint set up with right splint relatively, be formed with the centre gripping space that is used for centre gripping sheet metal between left side splint and the right splint, left side splint and right splint all are close to or keep away from the centre gripping space removes, left side splint be close to right splint the one side with right splint the one side that is close to left splint all is fixed with centre gripping sword.

Further, the one end that right splint were kept away from to left splint is provided with first cylinder, the fixed setting of base of first cylinder is in on the anchor clamps bottom plate, the telescopic shaft of first cylinder with the connection can be dismantled to left splint, the one end that left splint were kept away from to right splint is provided with the second cylinder, the fixed setting of base of second cylinder is in on the anchor clamps bottom plate, the telescopic shaft of second cylinder with the connection can be dismantled to right splint.

Furthermore, a sliding groove is formed in the clamp bottom plate, and the left clamping plate and the right clamping plate are matched in a sliding mode in the sliding groove.

Furthermore, a first screw rod is fixed on the telescopic shaft of the first air cylinder, a first threaded hole is formed in the left clamping plate, the first screw rod is in threaded fit with the first threaded hole, a second screw rod is fixed on the telescopic shaft of the second air cylinder, a second threaded hole is formed in the right clamping plate, and the second screw rod is in threaded fit with the second threaded hole.

Further, one side of the left clamping plate close to the right clamping plate or one side of the right clamping plate close to the left clamping plate are embedded with a pressure sensor.

Further, the anchor clamps bottom plate is the cuboid shape, the bolt hole has all been seted up to the four corners position of anchor clamps bottom plate.

Furthermore, a first support and a second support are fixed on the clamp bottom plate, a base of the first air cylinder is fixedly installed on the first support, and a base of the second air cylinder is fixedly installed on the second support.

Further, the one side that left splint are close to right splint with the one side that right splint are close to left splint all imbeds and is provided with the friction disc.

The utility model has the beneficial effects that:

the utility model provides an anchor clamps for sheet metal tensile experiment, to treat the sheet metal of experiment arrange the centre gripping space in, carry out the centre gripping to sheet metal through left splint and right splint, the in-process left splint of centre gripping and right splint apply stronger effort make centre gripping sword insert in sheet metal, make anchor clamps with higher centre gripping intensity centre gripping sheet metal, guarantee not drop from anchor clamps at the in-process sheet metal of tensile experiment, make going on that tensile experiment can be stable, be convenient for quick and accurate tensile experiment parameter of measuring sheet metal.

Drawings

FIG. 1 is a perspective view of a tensile test fixture for metal plates according to the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a front view of the tensile test fixture for metal plates according to the present invention;

FIG. 4 is a top view of the tensile test fixture for metal plates according to the present invention;

in the figure, 1-clamp bottom plate, 2-left clamp plate, 3-right clamp plate, 4-clamping space, 5-clamping knife, 6-first support, 7-second support, 8-friction plate, 10-first air cylinder, 11-second air cylinder, 12-chute, 13-first screw rod, 14-second screw rod, 15-pressure sensor and 16-bolt hole.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

As shown in fig. 1 to 4, a clamp for a metal plate tensile test comprises a clamp bottom plate 1, a left clamp plate 2 and a right clamp plate 3 are slidably arranged on the clamp bottom plate 1, the left clamp plate 2 and the right clamp plate 3 are oppositely arranged, a clamping space 4 for clamping a metal plate is formed between the left clamp plate 2 and the right clamp plate 3, the left clamp plate 2 and the right clamp plate 3 are both close to or far away from the clamping space 4 to move, and a clamping knife edge 5 is fixed on one surface of the left clamp plate 2 close to the right clamp plate 3 and one surface of the right clamp plate 3 close to the left clamp plate 2; a metal plate to be tested is placed in the clamping space 4, the left clamping plate 2 and the right clamping plate 3 are moved close to the clamping space 4 to clamp the metal plate, in the clamping process, the left clamping plate 2 and the right clamping plate 3 apply strong acting force to enable the clamping knife 5 to be inserted into the metal plate, the abutting force is generated between the clamping knife edge 5 and the metal sheet in the process of carrying out the stretching experiment to limit the movement of the metal sheet, meanwhile, the left clamping plate 2 and the right clamping plate 3 have stronger contact strength with the metal plate, so that friction force is generated between the metal plate and the left clamping plate 2 and the right clamping plate 3, thereby leading the clamp to clamp the metal plate with higher clamping strength under a plurality of acting forces, ensuring that the metal plate does not fall off from the clamp in the process of a tensile experiment, the tensile experiment can be stably carried out, and the tensile experiment parameters of the metal plate can be conveniently, rapidly and accurately measured.

Further, as shown in fig. 1 and fig. 4, a first cylinder 10 is disposed at one end of the left clamp plate 2 away from the right clamp plate 3, a base of the first cylinder 10 is fixedly disposed on the clamp base plate 1, a telescopic shaft of the first cylinder 10 is detachably connected with the left clamp plate 2, a second cylinder 11 is disposed at one end of the right clamp plate 3 away from the left clamp plate 2, a base of the second cylinder 11 is fixedly disposed on the clamp base plate 1, a telescopic shaft of the second cylinder 11 is detachably connected with the right clamp plate 3, a sliding groove 12 is disposed on the clamp base plate 1, the left clamp plate 2 and the right clamp plate 3 are both slidably fitted in the sliding groove 12, a first support 6 and a second support 7 are fixed on the clamp base plate 1, a base of the first cylinder 10 is fixedly mounted on the first support 6, a base of the second cylinder 11 is fixedly mounted on the second support 7, the left clamp plate 2 is driven to move by the first cylinder 10, the right clamp plate 3 is driven to move by the second cylinder 11, the amount of movement through first cylinder 10 and second cylinder 11 is different, change the position in centre gripping space 4 that left splint 2 and right splint 3 formed, thereby the clamping position of adjustable sheet metal is in order to adapt to the processing position of different elongators, the cylinder drive is adopted in the removal of left splint 2 and right splint 3, the cylinder has higher effort, insert centre gripping sword 5 in the sheet metal through this effort, make simultaneously left splint 2 and right splint 3 contact with stronger effort and sheet metal, guarantee can not drop at the in-process sheet metal of tensile experiment.

Further, as shown in fig. 1 and 3, the telescopic shaft of the first cylinder 10 is fixed with a first screw 13, a first threaded hole is formed in the left clamp plate 2, the first screw 13 is in threaded fit with the first threaded hole, the telescopic shaft of the second cylinder 11 is fixed with a second screw 14, a second threaded hole is formed in the right clamp plate 3, the second screw 14 is in threaded fit with the second threaded hole, for the convenience of clamping, the tensile test piece is generally processed into a plate or a cylinder, through the threaded fit of the first screw 13 and the left clamp plate 2, the threaded fit of the second screw 14 and the right clamp plate 3, the left clamp plate 2 can be detached from the first cylinder 10, and the right clamp plate 3 can be detached from the second cylinder 11, so that the arc-shaped clamping plate can be conveniently replaced to adapt to the shape of the test piece.

Further, as shown in fig. 2, a pressure sensor 15 is embedded in one surface of the left clamping plate 2 close to the right clamping plate 3 or one surface of the right clamping plate 3 close to the left clamping plate 2, whether the clamping knife 5 is completely inserted into the sheet metal part can be judged through the pressure sensor 15, and meanwhile, the left clamping plate 2 and the right clamping plate 3 can be ensured to be in extrusion contact with the sheet metal with a set acting force, so that whether the sheet metal is clamped in place can be quickly judged; the one side that left splint 2 is close to right splint 3 and the one side that right splint 3 is close to left splint 2 all imbed and are provided with friction disc 8, increase the coefficient of contact friction between anchor clamps and the sheet metal through friction disc 8 to improve the frictional force between anchor clamps and the sheet metal, thereby further improve clamping strength.

Further, anchor clamps bottom plate 1 is the cuboid shape, and bolt hole 16 has all been seted up to anchor clamps bottom plate 1's four corners position, adopts bolt 16 to connect anchor clamps bottom plate 1 on the workstation of stretcher.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an anchor clamps for sheet metal tensile experiment, a serial communication port, including anchor clamps bottom plate (1), it is provided with left splint (2) and right splint (3) to slide on anchor clamps bottom plate (1), left side splint (2) set up with right splint (3) relatively, be formed with centre gripping space (4) that are used for centre gripping sheet metal between left side splint (2) and the right splint (3), left side splint (2) and right splint (3) all are close to or keep away from centre gripping space (4) remove, left side splint (2) be close to right splint (3) the one side with the one side that right splint (3) are close to left splint (2) all is fixed with centre gripping sword (5).

2. The metal plate tensile test fixture according to claim 1, wherein a first cylinder (10) is arranged at one end, away from the right clamping plate (3), of the left clamping plate (2), a base of the first cylinder (10) is fixedly arranged on the fixture bottom plate (1), a telescopic shaft of the first cylinder (10) is detachably connected with the left clamping plate (2), a second cylinder (11) is arranged at one end, away from the left clamping plate (2), of the right clamping plate (3), a base of the second cylinder (11) is fixedly arranged on the fixture bottom plate (1), and a telescopic shaft of the second cylinder (11) is detachably connected with the right clamping plate (3).

3. The clamp for the tensile test of the metal plate as claimed in claim 2, wherein a sliding groove (12) is formed in the clamp bottom plate (1), and the left clamping plate (2) and the right clamping plate (3) are both slidably fitted in the sliding groove (12).

4. The clamp for the tensile test of the metal plate as claimed in claim 3, wherein a first screw (13) is fixed to a telescopic shaft of the first cylinder (10), a first threaded hole is formed in the left clamping plate (2), the first screw (13) is in threaded fit with the first threaded hole, a second screw (14) is fixed to a telescopic shaft of the second cylinder (11), a second threaded hole is formed in the right clamping plate (3), and the second screw (14) is in threaded fit with the second threaded hole.

5. The clamp for the tensile test of the metal plate as claimed in claim 1, wherein a pressure sensor (15) is embedded in one surface of the left clamping plate (2) close to the right clamping plate (3) or one surface of the right clamping plate (3) close to the left clamping plate (2).

6. The clamp for the tensile test of the metal plate as claimed in claim 1, wherein the clamp bottom plate (1) is rectangular, and bolt holes (16) are formed in four corners of the clamp bottom plate (1).

7. The clamp for the tensile test of the metal plate as claimed in claim 2, wherein a first support (6) and a second support (7) are fixed on the clamp bottom plate (1), a base of the first cylinder (10) is fixedly installed on the first support (6), and a base of the second cylinder (11) is fixedly installed on the second support (7).

8. The clamp for the tensile test of the metal plate as claimed in claim 1, wherein a friction plate (8) is embedded in one surface of the left clamping plate (2) close to the right clamping plate (3) and one surface of the right clamping plate (3) close to the left clamping plate (2).