CN2612942Y

CN2612942Y - Double space tester

Info

Publication number: CN2612942Y
Application number: CN 03226200
Authority: CN
Inventors: 雷庆安; 尚志兴
Original assignee: SHENZHEN SANS TESTING MACHINE
Current assignee: MTS Industry System (China) Co., Ltd.
Priority date: 2003-05-12
Filing date: 2003-05-12
Publication date: 2004-04-21
Anticipated expiration: 2013-05-12

Abstract

The utility model relates to an electric universal testing machine of a single sensor double spacing structure of the material mechanics significance test, the testing machine comprises a machine base (1), an upper cross-beam (2), left and right upright columns (3), a moving cross-beam (4), test specimen jigs (5,7) and sensor units (8), which are equipped on the single sensor units of the test specimen jigs (5,7) which can connect the up and down testing space of the intermediate portion of the moving cross-beam (4). The utility model adopts a thrust transducer double spacing structure testing structure, thereby the utility model not only tests accurately and reliably, but also the utility model has the advantages of the convenient operation, the high efficiency and the low cost.

Description

The double space testing machine

Invention field

The utility model relates to a kind of measuring apparatus, relates in particular to the metering outfit of the mechanical property test such as stretching, compression, bending, shearing of material.

Background technology

Traditional universal testing machine that is used for mechanical tests such as material extending, compression, bending, shearing all adopts single-sensor list space structure.In this structure, test specimen is installed in and pulls to or press to test on the anchor clamps that are provided with between base and the moving beam, and force transducer then is installed on the moving beam.When carrying out different tests, as tension test or compression test, the stressed direction of sensor is opposite.And force transducer is when different directions is stressed, its output signal error difference, and Measuring and testing department often only does unidirectional demarcation (pressing to as only demarcating) to force transducer, will make accuracy of experimental results can not get guaranteeing like this.Simultaneously, when carrying out different tests, need frequent anchor clamps, the troublesome poeration changed.

Also have another kind of testing machine in the prior art, it adopts dual sensor double space structure, promptly by moving beam testing machine is divided into upper and lower two spaces, force transducer of each space mounting.Following space dress pulls to force transducer, stretches, draws to cut etc. and pull to test and carry out in space down; Last space is installed and is pressed to force transducer, compression, crooked, press to cut etc. and press to test and finish in last space.This testing machine has been avoided going up some shortcomings of a kind of structure, but two force transducers will be installed, and has increased cost, and simultaneously, an equipment will be demarcated two sensors, has increased difficulty and workload for demarcation and testing.

Summary of the invention

The purpose of this utility model be solve in the prior art that measuring error is big, operation inconvenience and cost technical problems of high, the mechanical test machine of a kind of measuring accuracy height, the double-deck space structure of single-sensor simple to operate and lower-cost is proposed.

The technical solution of the utility model is the double space testing machine of a kind of material mechanical performance test of structure, it comprises base, entablature, left and right pillar, removable middle cross beam, test fixture and sensor module, and this sensor module is the single-sensor assembly that connects the test fixture in the test space up and down of being located at described middle cross beam middle part.

Several that described sensor module comprises the sensing disk, be located at this disk border connect the screw of described middle cross beam, and the center of described disk is provided with the coupling shaft that can connect test fixture in the test space up and down.

Described middle cross beam and described base, entablature constitute double-deck test space, and its one deck can be and pulls to test space, and another layer can be presses to test space.Described sensor module can be the electronic sensor assembly, and other positions of this sensor module or this testing machine can add and join other sensor modules.The arbitrary installable position of described sensor module or this testing machine all can add the sensor module of joining other models or form.

Because the utility model adopts single-sensor double space structure, force transducer is contained on the middle moving beam, upper and lower space pulls to or presses to test respectively, so no matter carry out which kind of test, stressed direction always of sensor, sensor only need be done unidirectional demarcation like this, has both reduced the workload of demarcating and detecting, and has improved measuring reliability again.In addition, different anchor clamps are installed in different work spaces, when doing different tests, have reduced the trouble of changing anchor clamps, have improved efficient, have reduced cost.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in detail, wherein:

Fig. 1 is a single-sensor list space structure synoptic diagram in the prior art;

Fig. 2 is a dual sensor double space structural representation in the prior art;

Fig. 3 is the structural representation of the utility model one preferred embodiment;

Fig. 4 is the structural representation of another embodiment of the utility model;

Fig. 5 is the partial enlarged drawing at Fig. 3 A place.

Embodiment

As shown in Figure 1, testing machine of the prior art comprises base 1, entablature 2, left and right pillar 3, moving beam 4.Piece fixture is installed on base 1 and the moving beam 4.Force transducer 8 also is installed on the moving beam 4.This structure is when stretching or compression test, and the output error difference of force transducer influences accuracy of experimental results.Compression simultaneously is different with the sectional fixture of tension test, needs the frequent anchor clamps of changing.

Fig. 2 is the testing machine of another kind of prior art, adopts dual sensor double space structure in this structure.Promptly adopt two force transducers, be installed in upper and lower space respectively.When doing tension test, test specimen is installed in down the space by stretching clamp 5 to carry out; When doing compression test, test specimen is installed in the space by compression clamp to carry out.This structure need be installed two force transducers, has not only increased cost, and has increased difficulty for demarcation and testing.

As shown in Figure 3, preferred embodiment of the present utility model is a kind of electronic universal tester, and it comprises base 1, entablature 2, left and right pillar 3, middle cross beam moving up and down 4, pulls to anchor clamps 5, presses to anchor clamps 7 and Bending support 6, electronic sensor assembly 8.Middle cross beam 4 moving up and down is divided into two-layer test space up and down with this testing machine, and described sensor module 8 comprises sensing disk 10, is located at 6 screws 11 that this disk border circumferencial direction distributes, and this screw is flush-mounted in described middle cross beam 4 upper surfaces with disk 10.The center of described disk 10 is provided with threaded coupling shaft 13, and the upper end of this coupling shaft 13 can connect the Bending support 6 in space and press to anchor clamps 7, and what the lower end of coupling shaft 13 can connect space down pulls to anchor clamps 5.

Middle cross beam 4 constitutes with base 1 does the following space that pulls to test; Entablature 2 and moving beam 4 constitute does the last space of pressing to test.Do when pulling to test, test specimen is installed in down the space with anchor clamps 5 to carry out; Do when pressing to test, test specimen is installed in the space with anchor clamps 7 and Bending support 6 to carry out, and also can pull to, press to test simultaneously.

In this embodiment, with bolt 11 sensing disk 10 is inlaid in moving beam 4 upper surfaces.When sample fracture, the impulse force of sample is born by bolt, by the elastic elongation of bolt, has reached the purpose of the stressed buffering of machine, has avoided the rigid shock of machine.

Fig. 4 is another embodiment of the present utility model.In this embodiment, base 1 and moving beam 4 constitute presses to test space, and test specimen is pressed to test in this space; Entablature 2 and moving beam 4 formations pull to test space, and test specimen pulls to test in this space.Power sensing disk 10 can be inlaid in the lower surface of moving beam 4 with screw.

In addition, all can add the sensor module of joining other models or form in the arbitrary installable position of the described sensor module of the utility model testing machine or this testing machine.

Because the utility model adopts single-sensor double space structure, only need a force transducer just can satisfy the requirement of various tests, saved cost.And, no matter carry out which kind of test, always a stressed direction of sensor.Like this, sensor only need be done unidirectional demarcation, has promptly reduced the workload of demarcating and detecting, and has improved measuring reliability again.In addition, different anchor clamps are installed in different work spaces, when doing different tests, have reduced the workload of changing anchor clamps, have improved work efficiency, have reduced cost.

The electronic universal tester that the utility model proposes is respectively 1 ton, 2 tons, 2.5 tons, 5 tons, 10 tons, 20 tons, 25 tons, 30 tons, 50 tons, 60 tons and 100 tons etc. applicable to maximum test force, and these serial testing machines have all been obtained effect preferably with using by experiment.

Claims

1, a kind of testing machine, comprise base (1), entablature (2), left and right pillar (3), movable middle cross beam (4), test fixture (5,7) and sensor module (8), it is characterized in that: described sensor module (8) is for being located at the single-sensor assembly of the test fixture (5,7) in the test space about connecting in the middle part of the described middle cross beam (4).

2, testing machine as claimed in claim 1, it is characterized in that: several that described sensor module (8) comprises sensing disk (10), be located at this disk border connect the screw (11) of described middle cross beam (4), and the center of described disk (10) is provided with the coupling shaft (13) that can connect test fixture (5,7) in the test space up and down.

3, testing machine as claimed in claim 2 is characterized in that: described middle cross beam (4) constitutes double-deck test space with described base (1), entablature (2), and its one deck can be and pulls to test space, and another layer can be presses to test space.

4, testing machine as claimed in claim 3 is characterized in that: described sensor module (8) is the electronic sensor assembly.

5, testing machine as claimed in claim 4 is characterized in that: other positions of described sensor module (8) or this testing machine can add and join other sensor modules.