CN213068120U

CN213068120U - Elasticity testing device

Info

Publication number: CN213068120U
Application number: CN202022545022.XU
Authority: CN
Inventors: 杨志豪; 杨坤; 林建丁
Original assignee: Guangdong Desheng Electronics Co ltd
Current assignee: Guangdong Desheng Electronics Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2021-04-27
Anticipated expiration: 2030-11-06

Abstract

The utility model discloses an elasticity testing device, which comprises an installation seat, a fixed rod, a movable rod, a tension testing piece and a displacement testing piece, wherein the fixed rod is fixedly arranged on the installation seat, the movable rod is slidably arranged on the installation seat, and the movable rod can move relative to the fixed rod; the tensile force test piece sets up on dead lever or movable rod, the displacement test piece sets up on the mount pad, the displacement volume of movable rod can be tested to the displacement test piece. The utility model is used for the power value test and the fatigue test of elastomer can carry out power value test and fatigue test simultaneously to make the capability test of elastomer more convenient, can assess the elastic decay process of elastomer in fatigue test through continuous repetition test moreover.

Description

Elasticity testing device

Technical Field

The utility model relates to an elastic component check out test set technical field, concretely relates to elasticity testing arrangement.

Background

Elastomers are common structures in many mechanical devices, and the function of the mechanical device can be realized through the elastic function of the elastomers. In the production and research and development processes of the elastomer, force value and fatigue tests are usually required, the performance of the product is tested and judged by the force value and the fatigue test of the elastomer through one instrument, and the method is inconvenient and cannot evaluate the elasticity attenuation process of the elastomer in the fatigue test.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem test respectively through an instrument and judge product property ability to the power value of elastomer and fatigue test among the background art, test inconvenient technical problem, provide an elasticity testing arrangement that can solve.

In order to solve the technical problem, the technical scheme of the utility model is that: an elasticity testing device comprises an installation seat, a fixed rod, a movable rod, a tension testing piece and a displacement testing piece, wherein the fixed rod is fixedly arranged on the installation seat, the movable rod is slidably arranged on the installation seat, and the movable rod can move relative to the fixed rod; the tensile force test piece sets up on dead lever or movable rod, the displacement test piece sets up on the mount pad, the displacement volume of movable rod can be tested to the displacement test piece.

Further, the tensile test piece is arranged on the fixing rod, a fixing structure is arranged on the tensile test piece, and a product to be tested can be fixed by the fixing structure.

Further, the tension test piece is a tension sensor.

Further, a sliding groove is formed in the mounting seat, the fixed rod is fixedly arranged at one end of the sliding groove, and the movable rod is arranged in the sliding groove in a sliding mode.

Further, the sliding mechanism also comprises a sliding driving mechanism which drives the movable rod to slide in the sliding groove.

Further, the sliding driving mechanism is a screw rod mechanism, the screw rod mechanism is installed on the installation seat, and a screw rod nut of the screw rod mechanism is arranged on the movable rod.

Further, the screw rod mechanism is driven by a stepping motor, the stepping motor is arranged on the mounting seat, and a screw rod of the screw rod mechanism is fixed on a rotating shaft of the stepping motor.

Further, the displacement test piece is displacement sensor, and displacement sensor sets up on the spout lateral wall, displacement sensor response movable rod's displacement.

Furthermore, one end, far away from the fixed rod, of the sliding groove is provided with a limiting baffle plate, and the limiting baffle plate limits the sliding position of the movable rod.

The utility model discloses the beneficial effect who realizes mainly has following several: the fixed rod of the elasticity testing device is fixedly arranged on the mounting seat, the movable rod is arranged on the mounting seat in a sliding mode, the tension testing piece is arranged on the fixed rod, the elastomer is connected between the tension testing piece and the movable rod during testing, and the tension applied to the elastomer is detected through the tension testing piece; the displacement test piece is arranged on the upper portion to test the displacement of the movable rod, and therefore the stretching amount of the elastic body is measured. The stress value of the elastic body is detected, the fatigue test can be carried out through the change of the stress value of the elastic body along with the stretching times of the elastic body, and the elastic attenuation process of the elastic body in the fatigue test can be evaluated according to multiple fatigue test data, so that the stress value test and the fatigue test of the elastic body are simultaneously carried out through one device, the operation is more convenient, and the test efficiency is improved; and the elastic attenuation process of the elastic body in the fatigue test can be evaluated according to multiple fatigue test data, and the elastic body can be better developed and produced.

Drawings

Fig. 1 is a schematic structural diagram of an elasticity testing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic view of a longitudinal section structure of a sliding slot of a elasticity testing apparatus according to an embodiment of the present invention.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.

Detailed Description

To facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and examples.

Example one

Referring to fig. 1 and 2, an elasticity testing apparatus for testing a force value and fatigue of an elastic body, which can simultaneously perform the force value test and the fatigue test, thereby facilitating the performance test of the elastic body, and evaluating the attenuation process of the elasticity of the elastic body in the fatigue test through continuous and repeated tests. The elasticity testing device comprises an installation seat 1, a fixed rod 2, a movable rod 3, a tension testing piece 4 and a displacement testing piece 5, wherein the installation seat 1 is an installation structure of each part of the device, the fixed rod 2, the movable rod 3, the tension testing piece 4 and the displacement testing piece 5 are all arranged on the installation seat 1, the fixed rod 2 is fixedly arranged on the installation seat 1, the movable rod 3 is arranged on the installation seat 1 in a sliding mode, and the movable rod 3 can move relative to the fixed rod 2; the top of the movable rod 3 is provided with a pressing plate 31, the pressing plate 31 is screwed on the top of the movable rod 3 through screws, one end of the elastic part 7 can be pressed between the movable rod 3 and the pressing plate 31 when the elastic part 7 to be tested is installed, and the elastic part 7 can be pressed and fixed on the movable rod 3 by screwing the screws. The tensile test piece 4 is arranged on the fixed rod 2 or the movable rod 3, the tensile test piece 4 in the embodiment is arranged on the fixed rod 2, the hook 41 is arranged on the tensile test piece 4 and serves as a fixed structure, and the hook 41 can fix the elastic piece 7 to be tested and is hooked and fixed. The displacement test piece 5 is arranged on the mounting seat, and the displacement test piece 5 can test the displacement of the movable rod 3.

During testing, one end of the elastic piece 7 is fixed on the tension testing piece 4 on the fixing rod 2, the other end of the elastic piece is fixed on the movable rod 3, so that the movable rod 3 can move relative to the fixing rod 2 to stretch the elastic piece 7, the stress value of the elastic piece 7 is detected, fatigue testing can be performed according to the change of the stress value of the elastic piece 7 along with the stretching times of the elastic piece, and the elastic attenuation process of the elastic piece in the fatigue testing can be evaluated according to multiple times of fatigue testing data. Therefore, the force value test and the fatigue test of the elastomer are simultaneously carried out through one device, the operation is more convenient, and the test efficiency is improved; and the elastic attenuation process of the elastic body in the fatigue test can be evaluated according to multiple fatigue test data, and the elastic body can be better developed and produced.

Referring to fig. 1, the tension test piece 4 may be a tension sensor commonly used in the prior art, and can test the tension applied to the elastic piece 7 when the elastic piece is stretched.

Referring to fig. 1 and 2, in order to better control the sliding of the movable rod 3, a sliding groove 11 is arranged on the mounting seat 1, the fixed rod 2 is fixedly arranged at one end of the sliding groove 11, and the movable rod 3 is slidably arranged in the sliding groove 11, so that the movable rod 3 slides along the sliding groove 11 when sliding on the mounting seat 1, the sliding track of the movable rod 3 is more determined and consistent, and the direction of each time is determined and consistent during the elastic body test, thereby improving the accuracy of the elastic body test.

Referring to fig. 1 and 2, the movable rod 3 may be installed by a specific structure in which a slide driving mechanism 6 is provided, and the slide driving mechanism 6 drives the movable rod 3 to slide in the slide groove 11. Slide actuating mechanism 6 can adopt screw rod mechanism, rack and pinion mechanism etc. in this embodiment slide actuating mechanism 6 adopts screw rod mechanism, screw rod mechanism installs on mount pad 1, screw-nut of screw rod mechanism sets up on movable rod 3 to can drive screw-nut linear motion on the lead screw when the lead screw rotates, the direction of rethread spout 11 realizes driving movable rod 3 rectilinear sliding on mount pad 1. The screw rod mechanism is driven by a stepping motor 61, the stepping motor 61 is arranged on the mounting seat 1, and a screw rod of the screw rod mechanism is fixed on a rotating shaft of the stepping motor 61. Adopt step motor, can control motor pivoted number of turns, thereby the number of turns of rotation of control lead screw, and then confirm screw-nut's displacement volume through the lead screw pivoted number of turns, finally can confirm the displacement volume of movable rod 3, the control of the 3 displacement volumes of movable rod has been realized, conveniently acquire the tensile length of elastic component 7, can not set up displacement test piece 5 from this, the tensile length of elastic component 7 is directly acquireed through step motor driven screw mechanism, simplify the structure of device, save the cost of device.

Referring to fig. 2, when the displacement test piece 5 is disposed, the displacement test piece 5 may adopt a displacement sensor, and the displacement sensor is disposed on a side wall of the sliding groove 11, and senses the displacement of the movable rod 3 through the displacement sensor, so as to obtain the stretching length of the elastic piece 7. The displacement sensor may be a sensor commonly used in the art. In addition, the best limit baffle 12 of the one end that the dead lever 2 was kept away from to spout 11, limit baffle 12 is spacing to the sliding position of movable rod 3, avoids movable rod 3 slippage to damage elasticity testing arrangement.

The elasticity testing arrangement during operation of this embodiment, fix the one end of elastic component 7 on tensile test 4, the other end is fixed on movable rod 3, then start step motor and drive movable rod 3 and remove tensile elastic component 7, the rotation number of turns or the tensile length that elastic component 7 was obtained to displacement test 5 through servo motor when elastic component 7 was tensile, the atress size through tensile test 4 test elastic component 7, thereby obtain the stress value size of the different tensile length of elastic component 7, can also carry out fatigue test along with the change of its tensile number of times through the stress value size of elastomer, and can be according to the elastic decay process of fatigue test data evaluation elastomer in fatigue test many times.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An elasticity testing device, characterized in that: the device comprises an installation seat (1), a fixed rod (2), a movable rod (3), a tension test piece (4) and a displacement test piece (5), wherein the fixed rod (2) is fixedly arranged on the installation seat (1), the movable rod (3) is arranged on the installation seat (1) in a sliding manner, and the movable rod (3) can move relative to the fixed rod (2); the tensile force test piece (4) is arranged on the fixed rod (2) or the movable rod (3), the displacement test piece (5) is arranged on the mounting seat (1), and the displacement of the movable rod (3) can be tested by the displacement test piece (5).

2. The elasticity test apparatus of claim 1, wherein: the tensile force testing piece (4) is arranged on the fixing rod (2), a fixing structure is arranged on the tensile force testing piece (4), and a product to be tested can be fixed by the fixing structure.

3. The elasticity test apparatus of claim 2, wherein: the tension test piece (4) is a tension sensor.

4. The elasticity test apparatus of claim 1, wherein: the mounting seat (1) is provided with a sliding groove (11), the fixed rod (2) is fixedly arranged at one end of the sliding groove (11), and the movable rod (3) is arranged in the sliding groove (11) in a sliding mode.

5. The elasticity test apparatus of claim 4, wherein: the device also comprises a sliding driving mechanism (6), wherein the sliding driving mechanism (6) drives the movable rod (3) to slide in the sliding groove (11).

6. The elasticity test apparatus of claim 5, wherein: the sliding driving mechanism (6) is a screw rod mechanism, the screw rod mechanism is installed on the installation seat (1), and a screw rod nut of the screw rod mechanism is arranged on the movable rod (3).

7. The elasticity test apparatus of claim 6, wherein: the screw rod mechanism is driven by a stepping motor (61), the stepping motor (61) is arranged on the mounting seat (1), and a screw rod of the screw rod mechanism is fixed on a rotating shaft of the stepping motor (61).

8. The elasticity test apparatus of claim 4, wherein: the displacement test piece (5) is a displacement sensor, the displacement sensor is arranged on the side wall of the sliding groove (11), and the displacement sensor senses the displacement of the movable rod (3).

9. The elasticity test apparatus of claim 8, wherein: one end of the sliding groove (11) far away from the fixed rod (2) is provided with a limiting baffle (12), and the limiting baffle (12) limits the sliding position of the movable rod (3).