Silicone rubber tensile property testing device

Abstract

The utility model discloses a device for testing the tensile property of silicone rubber, which relates to the technical field of rubber tests and comprises a test base and a pair of rubber clamps, a pair of polish rods are fixedly connected onto the test base, a top plate is fixedly connected onto the pair of polish rods, a lifting plate is slidably connected onto the pair of polish rods, and a double-shaft rotating motor fixedly penetrates through the lifting plate. The output parts at the two ends of the double-shaft rotating motor are provided with rotating locking pieces, one rotating locking piece is provided with a transmission lead screw, the transmission lead screw is in threaded transmission connection with the top plate, the other rotating locking piece is connected with one rubber clamp, and the rubber clamp is movably arranged at the bottom of the lifting plate; the test base is fixedly connected with a tension detector, and the other rubber clamp is arranged on the tension detector. According to the utility model, the technical problems that the current stretching mode for testing the tensile property of the rubber material is single and data is single are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber testing, and particularly relates to a device for testing the tensile properties of silicone rubber. Background Technique

[0002] Silicone rubber refers to a rubber in which the main chain is composed of alternating silicon and oxygen atoms, and usually two organic groups are connected to the silicon atoms. Silicone rubber is widely used in industry and has a variety of formulations. In order to obtain the tensile properties of silicone rubber, a rubber tensile testing machine is often used for testing. The rubber tensile testing machine mainly tests the physical properties of raw materials, finished products and semi-finished products, and can perform tensile strength tests, compressive strength tests, and bending tests to obtain test results and test data such as elongation, elongation rate, stress, and strain.

[0003] For example, the patent publication number CN218098625U discloses a tensile test device for rubber products testing, including a test base. On both sides of the top of the test base, test columns are fixedly arranged. Around the top of the test base, two anti-disengagement slide rails are fixedly arranged. A moving frame is slidably connected to both anti-disengagement slide rails. At the top between the two test columns, a top frame is fixedly arranged. On both sides of the top frame, directional sliding grooves are opened. Linkage rack bars are slidably connected inside both directional sliding grooves. This utility model is a tensile test device for rubber products testing. This test device is simple and convenient to operate. On both sides of the traditional test device, there are additionally provided linkable tempered glass protection doors, which can isolate the rubber products to be tested during the test process, that is, it does not affect the test personnel's observation of the test situation, and at the same time can prevent the rubber products from bouncing and injuring the test personnel, improving the safety of equipment use.

[0004] In the above patent, the inventor believes that when this patent is used, the stretching method for testing the tensile properties of rubber materials has a single nature, and the data is single. Because the current tensile test only uses linear stretching as the method, such a method has deficiencies in stretching conditions, and due to the deficiencies in stretching conditions, the tensile test data is not diverse enough. Content of the Utility Model

[0005] The utility model aims to provide a technical solution of a device for testing the tensile properties of silicone rubber to solve the above problems in order to overcome the above deficiencies.

[0006] To achieve the above object, the utility model provides the following technical solution:

[0007] A silicone rubber tensile property testing device includes a test base and a pair of rubber clamps. A pair of light rods are fixedly connected to the test base, and a top plate is fixedly connected to the pair of light rods. A lifting plate is slidably connected to the pair of light rods. A double-shaft rotating motor is fixedly penetrated through the lifting plate. Rotating locking members are provided at both output parts of the double-shaft rotating motor. A transmission lead screw is provided on one of the rotating locking members, and the transmission lead screw is in threaded transmission connection with the top plate. The other rotating locking member is connected to one of the rubber clamps, and this rubber clamp is movably arranged at the bottom position of the lifting plate;

[0008] A tensile force detector is fixedly connected to the test base, and the other rubber clamp is arranged on the tensile force detector.

[0009] As a further scheme of the present utility model: The rubber clamp includes a clamping seat, a threaded rod threadedly connected to one side of the clamping seat, and a clamping plate rotatably connected to one end of the threaded rod. The clamping plate is slidably connected to the inside of the clamping seat.

[0010] As a further scheme of the present utility model: The rotating locking member includes a transmission sleeve fixedly connected to the output end of the double-shaft rotating motor, an inner driving rod inserted into the transmission sleeve, and a fastener for fastening the inner driving rod and the transmission sleeve.

[0011] As a further scheme of the present utility model: The transmission lead screw is fixedly connected to one of the inner driving rods, and the other inner driving rod is fixedly connected to the clamping seat at the top.

[0012] As a further scheme of the present utility model: A rotating ring is rotatably connected to the bottom of the lifting plate, and a pair of fixed columns are fixedly connected to the bottom of the rotating ring. The pair of fixed columns are fixedly connected to the clamping seat at the top.

[0013] As a further scheme of the present utility model: The clamping seat at the bottom is fixedly connected to the detection end of the tensile force detector, and a pair of telescopic rods are fixedly connected to the test base. The pair of telescopic rods are fixedly connected to the clamping seat at the bottom.

[0014] As a further scheme of the present utility model: A pair of fixing plates are fixedly connected to both sides of the test base, and a pair of reinforcing support plates are fixedly connected to the top plate and the test base.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] The utility model provides power for the tensile property test of silicone rubber by setting a biaxial rotating motor. Since the biaxial rotating motor can be flexibly connected and disengaged with the transmission lead screw and a rubber fixture through the rotating locking parts at both ends, after the silicone rubber is clamped on a pair of rubber fixtures, a tensile force detector is used to detect the tensile data of the silicone rubber. On the one hand, the silicone rubber can directly perform a linear stretching action. On the other hand, the silicone rubber can first increase the torsion degree and then perform a stretching test, that is, rotate the silicone rubber to increase the torsion effect. By improving the power utilization rate of the biaxial rotating motor, the silicone rubber can obtain tensile tests under two test conditions, meeting the diverse data requirements of the tensile property test. Brief Description of the Drawings

[0017] Figure 1 is a three-dimensional structural view of a silicone rubber tensile property test device of the utility model;

[0018] Figure 2 is a three-dimensional structural view of the rubber fixture and the tensile force detector of the utility model;

[0019] Figure 3 is a three-dimensional structural view of the rubber fixture and the rotating ring of the utility model;

[0020] Figure 4 is a three-dimensional structural view of the rotating locking part of the utility model.

[0021] The reference numerals and names in the drawings are as follows:

[0022] 1. Test base; 2. Rubber fixture; 21. Clamping seat; 22. Threaded rod; 23. Clamping plate; 3. Smooth rod; 31. Top plate; 4. Lifting plate; 5. Biaxial rotating motor; 6. Rotating locking part; 61. Transmission sleeve; 62. Inner driving rod; 63. Fastening piece; 7. Transmission lead screw; 8. Tensile force detector; 9. Expansion rod; 10. Rotating ring; 11. Fixed column; 12. Fixed plate; 13. Reinforcing brace plate. Detailed Description of the Embodiment

[0023] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-4, A silicone rubber tensile property testing device, including a test base 1 and a pair of rubber clamps 2. In this application, a touch display screen, a controller, and a processor can be set on the test base 1. The controller can be connected to the driving device in the current tensile testing machine, and the processor can be electrically connected to the tensile testing element. A pair of optical rods 3 are fixedly connected to the test base 1. A top plate 31 is fixedly connected to the pair of optical rods 3. A lifting plate 4 is slidably connected to the pair of optical rods 3. A double-axis rotating motor 5 is fixedly penetrated through the lifting plate 4. The double-axis rotating motor 5 in this application is a forward and reverse driving type motor and is a self-locking rotating motor. An encoder can be connected to the double-axis rotating motor 5, so as to improve the driving control accuracy of the double-axis rotating motor 5. Rotating locking members 6 are provided at both output parts of the double-axis rotating motor 5. A transmission lead screw 7 is provided on one of the rotating locking members 6. The transmission lead screw 7 is in threaded transmission connection with the top plate 31. The other rotating locking member 6 is connected to one of the rubber clamps 2, and this rubber clamp 2 is movably arranged at the bottom of the lifting plate 4. The pair of rubber clamps 2 can respectively clamp and fix both ends of the silicone rubber.

[0025] A tensile detector 8 is fixedly connected to the test base 1. The other rubber clamp 2 is arranged on the tensile detector 8. The tensile detector 8 is used to detect the tensile force data of the stretching change of the silicone rubber. It is an existing technology device and will not be elaborated here too much.

[0026] The rubber clamp 2 includes a clamping seat 21, a threaded rod 22 threadedly connected to one side of the clamping seat 21, and a clamping plate 23 rotatably connected to one end of the threaded rod 22. One end of the threaded rod 22 can be rotatably connected to the clamping plate 23 through a bearing. The clamping plate 23 is slidably connected to the inside of the clamping seat 21. The clamping seat 21 is arranged in a "C" shape structure. In this application, a crank is provided at the end of the threaded rod 22 facing away from the clamping plate 23, which can conveniently drive the threaded rod 22 to perform a threaded feeding movement on the clamping seat 21. The setting of the clamping plate 23 is to improve the clamping stability of the silicone rubber. The clamping surface of the clamping plate 23 can be anti-slip treated, such as adding anti-slip patterns.

[0027] The rotating locking member 6 includes a transmission sleeve 61 fixedly connected to the output end of the double-axis rotating motor 5, an inner driving rod 62 inserted into the transmission sleeve 61, and a fastening member 63 for connecting the inner driving rod 62 and the transmission sleeve 61. The fastening member 63 can use the cooperation of a bolt and a nut to lock the inner driving rod 62 and the transmission sleeve 61 in the inserted state. When the rotational power at one end of the double-axis rotating motor 5 needs to be obtained, at this time, the inner driving rod 62 and the transmission sleeve 61 in the rotating locking member 6 are in a locked state. On the contrary, the inner driving rod 62 and the transmission sleeve 61 are in an unlocked state.

[0028] The transmission lead screw 7 is fixedly connected to one of the inner drive rods 62, and the other inner drive rod 62 is fixedly connected to the clamping seat 21 at the top. When the dual-axis rotation motor 5 provides rotational power for the transmission lead screw 7 through the locked rotation locking member 6, the transmission lead screw 7 can drive the lifting plate 4 to rise through screw transmission on the top plate 31. Then, a rubber clamp 2 on the lifting plate 4 can pull the silicone rubber to cause tensile deformation.

[0029] In addition, when the locking of the rotation locking member 6 on the transmission lead screw 7 is released and the rotation locking member 6 connected to one rubber clamp 2 is locked simultaneously, when the dual-axis rotation motor 5 is driven, the lifting plate 4 does not perform lifting or lowering actions, while one rubber clamp 2 can rotate. In this way, the silicone rubber fixed on a pair of rubber clamps 2 can be twisted by a certain angle. By imparting a twist degree to the silicone rubber, tensile data with a twist degree can be obtained when stretching the silicone rubber subsequently, which can improve the data diversity of the silicone rubber tensile performance test.

[0030] A rotating ring 10 is rotatably connected to the bottom of the lifting plate 4. The rotating ring 10 can be rotatably connected to the lifting plate 4 through a bearing. A pair of fixed columns 11 are fixedly connected to the bottom of the rotating ring 10, and the pair of fixed columns 11 are fixedly connected to the clamping seat 21 at the top. The advantage of this design is that the rubber clamp 2 at the top can rotate at the bottom of the lifting plate 4.

[0031] The clamping seat 21 at the bottom is fixedly connected to the detection end of the tensile force detector 8. A pair of telescopic rods 9 are fixedly connected to the test base 1, and the pair of telescopic rods 9 are fixedly connected to the clamping seat 21 at the bottom. The telescopic action of the telescopic rods 9 can balance the clamping position of the rubber clamp 2 at the bottom, so that the rubber clamp 2 at the bottom will not rotate due to the twisting of the silicone rubber.

[0032] A pair of fixing plates 12 are fixedly connected to both sides of the test base 1. The fixing plates 12 can be installed on a specified installation surface by bolts, which can stabilize the social position of the entire tensile testing machine for rubber tensile performance. A pair of reinforcing support plates 13 are fixedly connected to the top plate 31 and the test base 1, and the reinforcing support plates 13 can enhance the support strength of the optical rod 3.

[0033] When the utility model is in use, the two ends of the silicone rubber to be tested are respectively placed in the corresponding clamping seats 21. Then, by rotating the corresponding threaded rods 22, the two ends of the silicone rubber are respectively fixed on the corresponding clamping seats 21 through the clamping plates 23. In this way, the double-axis rotating motor 5 can be started for driving work. At this time, the rotating locking member 6 at the top can be in a locked state, while the rotating locking member 6 at the bottom can be in a released state. In this way, the double-axis rotating motor 5 can drive the transmission lead screw 7 to rotate through the rotating locking member 6 at the top. Under the action of the threaded connection between the transmission lead screw 7 and the top plate 31, the lifting plate 4 can be pulled to slide vertically upward on the optical rod 3. In this way, the rubber fixture 2 at the top moves upward away from the silicone rubber to stretch the silicone rubber, and then the tensile force detector 8 can obtain the tensile data of the silicone rubber.

[0034] It should be noted that when another tensile form of the silicone rubber needs to be obtained, the rotating locking member 6 at the top can be unlocked first, and the rotating locking member 6 at the bottom can be locked. The rotating ring 10 is used to provide rotational support for the rubber fixture 2 at the top. In this way, the double-axis rotating motor 5 can rotate and drive to adjust the torsional degree of the clamped silicone rubber. Subsequently, the above-mentioned rotating locking member 6 at the top is in a locked state to stretch the silicone rubber. In this way, the silicone rubber can be subjected to a linear tensile test under different torsional degree data. In this way, the silicone wire can be subjected to tensile tests of single linear and linear parallel torsional degrees, and the test data is relatively comprehensive.

[0035] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A silicone rubber tensile property testing device, comprising a test base (1) and a pair of rubber clamps (2), characterized in that, A pair of optical rods (3) are fixedly connected to the test base (1). A top plate (31) is fixedly connected to the pair of optical rods (3). A lifting plate (4) is slidably connected to the pair of optical rods (3). A double-shaft rotary motor (5) is fixedly penetrated through the lifting plate (4). Rotating locking members (6) are arranged at both output parts of the double-shaft rotary motor (5). A transmission lead screw (7) is arranged on one of the rotating locking members (6). The transmission lead screw (7) is in threaded transmission connection with the top plate (31). The other rotating locking member (6) is connected to one of the rubber clamps (2), and this rubber clamp (2) is movably arranged at the bottom position of the lifting plate (4); A tensile force detector (8) is fixedly connected to the test base (1). The other rubber clamp (2) is arranged on the tensile force detector (8).

2. The silicone rubber tensile property testing device according to claim 1, characterized in that, The rubber clamp (2) includes a clamping seat (21), a threaded rod (22) threadedly connected to one side of the clamping seat (21), and a clamping plate (23) rotatably connected to one end of the threaded rod (22). The clamping plate (23) is slidably connected to the inside of the clamping seat (21).

3. The silicone rubber tensile property testing device according to claim 2, characterized in that, The rotating locking member (6) includes a transmission sleeve (61) fixedly connected to the output end of the double-shaft rotary motor (5), an inner driving rod (62) inserted into the transmission sleeve (61), and a fastener (63) for connecting the inner driving rod (62) and the transmission sleeve (61).

4. A silicone rubber tensile property testing device according to claim 3, characterized in that, The transmission lead screw (7) is fixedly connected to one of the inner driving rods (62). The other inner driving rod (62) is fixedly connected to the clamping seat (21) at the top.

5. The silicone rubber tensile property testing device according to claim 4, wherein, A rotating ring (10) is rotatably connected to the bottom of the lifting plate (4). A pair of fixed columns (11) are fixedly connected to the bottom of the rotating ring (10). The pair of fixed columns (11) are fixedly connected to the clamping seat (21) at the top.

6. The silicone rubber tensile property testing device according to claim 5, characterized in that, The clamping seat (21) at the bottom is fixedly connected to the detection end of the tensile force detector (8). A pair of telescopic rods (9) are fixedly connected to the test base (1). The pair of telescopic rods (9) are fixedly connected to the clamping seat (21) at the bottom.

7. The silicone rubber tensile property testing device according to claim 1, characterized in that, A pair of fixing plates (12) are fixedly connected to both sides of the test base (1). A pair of reinforcing support plates (13) are fixedly connected to the top plate (31) and the test base (1).

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