CN203396644U

CN203396644U - Round rod tensile sample tensile clamp

Info

Publication number: CN203396644U
Application number: CN201320528654.2U
Authority: CN
Inventors: 李晓冬; 赵炜; 陆连萍; 丁阳
Original assignee: Shanghai Electric Nuclear Power Equipment Co Ltd
Current assignee: Shanghai Electric Nuclear Power Equipment Co Ltd
Priority date: 2013-08-28
Filing date: 2013-08-28
Publication date: 2014-01-15
Anticipated expiration: 2023-08-28

Abstract

The utility model discloses a round rod tensile sample tensile clamp which comprises an upper connecting piece and a lower connecting piece which are respectively connected with a testing machine, and further comprises an upper clamp connected with the upper connecting piece, wherein the upper clamp is provided with an upper clamp head; the clamp further comprises a lower clamp connected with the lower connecting piece, wherein the lower clamp comprises a lower clamp head; and the clamp further comprises lower bolts which are respectively arranged inside the upper clamp head and the lower clamp head. Due to adoption of the clamp, the defects that the conventional clamp is high in noise, large in power consumption, an extensometer cannot be arranged, and the like, are solved, and meanwhile the clamp can be conveniently and rapidly replaced, and is a precise, rapid and economic clamp system.

Description

Pole tensile sample stretching clamp

Technical field

The utility model relates to a kind of pole tensile sample stretching clamp.

Background technology

Nuclear power manufacturing enterprise all adopts yield strength as performance assessment criteria during to tests such as raw-material examination, welding material examination, qualification of welding procedure, product witness parts, and this performance assessment criteria is absolutely necessary, but much materials and wlding are no remarkable yields under many circumstances.So just need to measure Rp0.2(regulation plastic elongation intensity) as performance assessment criteria, the mensuration of Rp0.2 need adopt extensometer to complete, existing stretching clamp adopts hydraulically operated fixture, hydraulically operated fixture cannot normal mounting extensometer, as needs, extensometer being installed needs stretching standard sample to lengthen, so just caused the waste of material, and the specification of material is certain under many circumstances, cannot lengthens sample at all.Hydraulically operated fixture also exists the shortcomings such as power consumption is large, noise is large in process of the test simultaneously.

Utility model content

A kind of pole tensile sample stretching clamp that the utility model provides, has solved that original fixture noise is large, power consumption is large, the shortcomings such as extensometer cannot be installed, and changes fixture convenient, fast simultaneously, is a kind of accurate, quick, economic chucking appliance system.

In order to achieve the above object, the utility model provides a kind of pole tensile sample stretching clamp, this fixture comprises upper connector and the lower web member being connected with testing machine respectively, this fixture also comprises the upper fixture that connects upper connector, on this, fixture has upper grip, this fixture also comprises the lower clamp that connects lower web member, and this lower clamp comprises lower chuck.

Described upper grip and lower chuck all have internal thread.

This fixture also comprises the upper latch being arranged in upper grip and is arranged on the lower latch in lower chuck.

The utlity model has following advantage:

1, energy-conservation, consumption reduction;

2, replacing fixture is convenient, fast;

3, clamping is safe, convenient, fast.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the open mode schematic diagram of upper fixture;

Fig. 3 is the closure state schematic diagram of upper fixture;

Fig. 4 is the explosive view of upper grip;

Fig. 5 is the open mode schematic diagram of lower clamp;

Fig. 6 is the closure state schematic diagram of lower clamp;

Fig. 7 is the explosive view of lower chuck.

Embodiment

Following according to Fig. 1～Fig. 7, illustrate preferred embodiment of the present utility model.

As shown in Figure 1, the utility model provides a kind of pole tensile sample stretching clamp, this fixture comprises upper connector 1 and the lower web member 7 being connected with testing machine respectively, this fixture also comprises the upper fixture 3 that connects upper connector 1, on this, fixture 3 has upper grip 31, upper grip 31 has internal thread, this fixture also comprises the lower clamp 6 that connects lower web member 7, this lower clamp 6 comprises lower chuck 61, lower chuck 61 has internal thread, and this fixture also comprises the upper latch 2 being arranged in upper grip 31 and is arranged on the lower latch 5 in lower chuck 61.

As shown in Figure 2, be the open mode schematic diagram of upper fixture 3, as shown in Figure 3, be the closure state schematic diagram of upper fixture 3, as shown in Figure 4, be the explosive view of upper grip 31.

As shown in Figure 5, be the open mode schematic diagram of lower clamp 6, as shown in Figure 6, be the closure state schematic diagram of lower clamp 6, as shown in Figure 7, be the explosive view of lower chuck 61.

Principle of work of the present utility model is as follows:

As shown in Figure 1, upper latch 2 is extracted out, open upper grip 31, lower latch 5 is extracted out, open lower chuck 61, the upper end of sample 4 is put in upper grip 31, close upper grip 31, upper latch 2 is inserted in upper grip 31, the position of fixture 3 in adjustment, make the lower end of sample 4 be placed in lower chuck 61 completely, after weighing position the external thread of lower end of sample 4 and the internal thread of lower chuck 61 agreed with completely by adjusting test machine, close lower chuck 61, lower latch 5 is inserted in lower chuck 61, complete the clamping of sample 4, then extensometer 8 is arranged between upper grip 31 and lower chuck 61.

Employing the utility model clamping sample is convenient, safety, use quick, problem that cannot normal mounting extensometer in real solution sample process, the utility model adopts mechanical grip, not power consumption, noiselessness, real solution the problem that exists of hydraulically operated fixture, this clamp-replacing is convenient, fast simultaneously, only two latches of upper and lower fixture need to be extracted, just can realize fast clamp-replacing.

Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.Those skilled in the art, read after foregoing, for multiple modification of the present utility model with to substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.

Claims

1. a pole tensile sample stretching clamp, it is characterized in that, this fixture comprises upper connector (1) and the lower web member (7) being connected with testing machine respectively, this fixture also comprises the upper fixture (3) that connects upper connector (1), fixture on this (3) has upper grip (31), this fixture also comprises the lower clamp (6) that connects lower web member (7), and this lower clamp (6) comprises lower chuck (61).

2. pole tensile sample stretching clamp as claimed in claim 1, is characterized in that, described upper grip (31) and lower chuck (61) all have internal thread.

3. pole tensile sample stretching clamp as claimed in claim 1, is characterized in that, this fixture also comprises and is arranged on the upper latch (2) in upper grip (31) and is arranged on the interior lower latch (5) of lower chuck (61).