Jig for accelerating aging of high polymer material

Abstract

The utility model discloses a jig for accelerating aging of a high polymer material, which relates to the technical field of material tests, is used for destroying dumbbell-shaped high polymer material splines, and comprises a box body, a first destroying component and a second destroying component, the sample strip is detachably fixed in the box body, and the box body can heat the sample strip; the first destroying assembly is installed on the box body and used for stretching and compressing the sample strip, and the action direction of the first destroying assembly and the axial direction of the sample strip are located on the same straight line; and the second destroying assembly is mounted on the box body, is perpendicular to the sample strip, and is used for driving the sample strip to swing in a plane perpendicular to the axis of the sample strip. Through the arrangement, the rapid aging behavior of the high polymer material can be effectively simulated.

Description

Technical Field

[0001] This utility model relates to the field of materials testing technology, and in particular to a fixture for accelerating the aging of polymer materials. Background Technology

[0002] In actual use, automotive polymer materials are subjected to complex stresses such as vibration, tension, and compression, while also facing relatively harsh environmental temperature and humidity conditions. Therefore, effectively simulating the aging behavior of polymer materials in the laboratory has become a challenge. Besides adhesives, automotive polymer materials also include a large number of engineering plastics, all of which require simulated aging behavior.

[0003] Therefore, how to provide a fixture to accelerate the simulated aging behavior of polymer materials is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a fixture for accelerating the aging of polymer materials, which can effectively and quickly simulate the aging behavior of polymer materials.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fixture for accelerating the aging of polymer materials, used to destroy dumbbell-shaped polymer material specimens, comprising:

[0007] The sample is detachably fixed inside the box, and the box can heat the sample.

[0008] The first breaking component is installed in the box. The first breaking component is used to stretch and compress the spline, and the movement direction of the first breaking component is on the same straight line as the axis of the spline.

[0009] The second breaking component is installed in the housing and is set perpendicular to the spline. The second breaking component is used to drive the spline to swing in a plane perpendicular to its axis.

[0010] Preferably, the box has a square structure and a fixing seat at the bottom for clamping the spline.

[0011] Preferably, the first breaking component is installed on the top of the housing and is opposite to the fixed base. The first breaking component includes a first drive motor and a first fixing clamp installed at the movable end of the first drive motor. The first fixing clamp is used to clamp the end of the spline away from the fixed base.

[0012] Preferably, the second destructive component is disposed on the side wall of the box. The second destructive component includes a second drive motor, a connecting rod installed at the end of the second drive motor, and a second fixing clamp for clamping the sample at the end of the connecting rod. The second drive motor is used to drive the sample to swing perpendicular to its axis through the connecting rod.

[0013] Preferably, the first drive motor is a telescopic cylinder, and the second drive motor is a rotary motor.

[0014] Preferably, the side wall has an elongated, waist-shaped hole for the connecting rod to pass through.

[0015] Preferably, the second fixing clamp is clamped at the center position of the spline along its axial direction.

[0016] Preferably, the rotation angle range of the second drive motor is ±5°.

[0017] Preferably, heating tubes are evenly laid on the inner wall of the chamber to heat the sample uniformly.

[0018] Preferably, the chamber is equipped with a temperature sensor, which can detect the temperature inside the chamber and control the operation of the heating element.

[0019] Compared to the aforementioned background technology, the present invention provides a fixture for accelerating the aging of polymer materials, used to destroy dumbbell-shaped polymer material samples, comprising: a box, a first destruction component, and a second destruction component; the sample is detachably fixed inside the box, and the box can heat the sample; the first destruction component is installed in the box and is used to stretch and compress the sample, and the direction of movement of the first destruction component is on the same straight line as the axis of the sample; the second destruction component is installed in the box and is set perpendicular to the sample, and is used to drive the sample to swing in a plane perpendicular to its axis.

[0020] Specifically, when accelerated aging of a specimen is required, the specimen is first vertically fixed inside the chamber, and the top of the specimen is connected to the first destructive component on the top of the chamber. The first destructive component will cause the specimen to be stretched or compressed vertically. At the same time, the second destructive component is connected to the middle of the specimen, which will cause the specimen to swing back and forth in a plane perpendicular to its axis. In addition, the chamber can also heat the specimen while the two actions are being performed. In this way, the aging of the specimen can be simulated in a shorter time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the fixture structure for accelerating the aging of polymer materials provided in an embodiment of this utility model.

[0023] in:

[0024] 01-Spline;

[0025] 100 - Box body, 110 - Bottom, 120 - Mounting base, 130 - Top, 140 - Side wall;

[0026] 200 - First breaking component, 210 - First transmission motor, 220 - First fixing fixture;

[0027] 300 - Second breaking component, 310 - Second drive motor, 320 - Connecting rod, 330 - Second fixing clamp;

[0028] 400 - Temperature sensor. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left" and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0032] The purpose of this invention is to provide a fixture for accelerating the aging of polymer materials, which can effectively simulate the rapid aging behavior of polymer materials.

[0033] To achieve the above objectives, the present invention provides the following technical solution:

[0034] Please see Figure 1 This embodiment provides a fixture for accelerating the aging of polymer materials, used to destroy dumbbell-shaped polymer material samples 01. It includes: a housing 100, a first destruction component 200, and a second destruction component 300. The sample 01 is detachably fixed inside the housing 100, which can heat the sample 01. The first destruction component 200 is installed in the housing 100 and is used to stretch and compress the sample 01, with its direction of movement aligned with the axis of the sample 01. The second destruction component 300 is installed in the housing 100 and is perpendicular to the sample 01, used to cause the sample 01 to swing in a plane perpendicular to its axis.

[0035] Specifically, in this embodiment, the spline 01 is a dumbbell-shaped structure. When simulating aging treatment, it can be stretched and compressed axially, and at the same time, it can be torsion. Of course, all the above treatments are carried out in a high-temperature environment, so as to well simulate the aging process of the spline 01.

[0036] In this embodiment, the first breaking component 200 applies force to the end of the sample 01 to stretch or compress the sample 01, while the second breaking component 300 applies force to the middle of the sample 01 to twist the sample 01. Since the sample 01 is a plastic material, its deformation is very small. Therefore, the two actions in different directions can be performed simultaneously, which can accelerate the simulation of the aging process of the sample 01.

[0037] When accelerated aging of the sample 01 is required, the sample 01 is first vertically fixed inside the housing 100, and the top of the sample 01 is connected to the first destructive component 200 on the top 130 of the housing 100. The first destructive component 200 will cause the sample 01 to be stretched or compressed vertically. At the same time, the second destructive component 300 will be connected to the middle of the sample 01, which will cause the sample 01 to swing back and forth in a plane perpendicular to its axis. In addition, while the two actions are being performed, the housing 100 can also heat the sample 01. In this way, the aging of the sample 01 can be simulated in a shorter time.

[0038] Preferably, the box 100 has a square structure, and a fixing seat 120 is provided at its bottom 110 for clamping the spline 01.

[0039] In this embodiment, the box 100 is a cuboid structure, and a fixing seat 120 is installed at the lowest part of its internal space. The fixing seat 120 can clamp the bottom end of the template 01. Specifically, the fixing seat 120 can be two clamping blocks connected by long bolts. A semi-cylindrical groove is provided on the opposite side of the two clamping blocks. In this way, the bottom end of the template 01 can be clamped by tightening the long bolts. Of course, the specific structure of the fixing seat 120 can also be adjusted according to the actual situation, as long as it can clamp the template 01.

[0040] In addition, a transparent observation window can be installed on the side wall of the chamber 100 so that the operator can observe the changes of the spline 01 in real time and better monitor the experimental progress.

[0041] Preferably, the first destructive component 200 is installed on the top 130 of the housing 100 and is opposite to the fixed base 120. The first destructive component 200 includes a first drive motor 210 and a first fixing clamp 220 installed on the movable end of the first drive motor 210. The first fixing clamp 220 is used to clamp the end of the spline 01 that is away from the fixed base 120.

[0042] like Figure 1 As shown, the first destructive component 200 is installed on the top 130 of the housing 100, and its position is on the same straight line in the vertical direction as the fixing base 120. This allows the template 01 to be stretched or compressed along the straight line, preventing the template 01 from bending. Specifically, the first destructive component 200 includes a first transmission motor 210 as a power source and a first fixing clamp 220 installed at the movable end of the first transmission motor 210. The movable end of the first transmission motor 210 extends into the housing 100, and the first fixing clamp 220 is installed at its end. The first fixing clamp 220 can clamp the top end of the template 01. In this way, when the first transmission motor 210 starts to extend or retract, it will drive the template 01 to perform the same action.

[0043] It should be noted that in this embodiment, the height of the housing 100 should be selected according to the actual situation to ensure that the first drive motor 210 has a certain amount of room to move.

[0044] Preferably, the second destructive component 300 is disposed on the side wall 140 of the housing 100. The second destructive component 300 includes a second drive motor 310, a connecting rod 320 installed at the end of the second drive motor 310, and a second fixing clamp 330 for clamping the sample 01 disposed at the end of the connecting rod 320. The second drive motor 310 is used to drive the sample 01 to swing perpendicular to its axis through the connecting rod 320.

[0045] Furthermore, the second destructive component 300 is disposed on the side wall 140 of the housing 100, which is perpendicularly connected to the top 130. Moreover, the second destructive component 300 operates differently from the first destructive component 200. The second destructive component 300 is used to drive the spline 01 to twist. Specifically, the second destructive component 300 includes a second transmission motor 310 as a power source, a connecting rod 320 for transmitting the action, and a second fixing clamp 330 provided at the end of the connecting rod 320 for clamping the spline 01. The second fixing clamp 330 can clamp the position between the two ends of the spline 01. Thus, when the connecting rod 320 swings perpendicular to the axis of the spline 01, the spline 01 will be twisted because the top and bottom ends of the spline 01 are fixed on the same straight line.

[0046] Preferably, the first transmission motor 210 is a telescopic cylinder, and the second transmission motor 310 is a rotary motor.

[0047] In this embodiment, the first transmission motor 210 is preferably a telescopic cylinder, whose movable rod moves up and down in the vertical direction, thereby driving the spline 01 to perform stretching and compression actions; while the second transmission motor 310 is specifically a rotary motor, which can perform forward and reverse actions, so it can drive the connecting rod 320 to swing back and forth.

[0048] Of course, the first transmission motor 210 can also be a linear motor or other power source with a linear output trajectory, as long as it can achieve the stretching and compression of spline 01 along its axial direction.

[0049] Furthermore, in this embodiment, the first drive motor 210 can periodically provide force. Generally, the force value is 1 / 10 of the force required for the spline 01 to break under tension. For example, if the spline 01 needs 100N to completely break, then the value of the periodic alternating stress is set to -10 to 10N, which means that after being stretched by 10N, it returns to 0N, then compressed by 10N, and then returns to 0N, which constitutes one cycle.

[0050] Preferably, the side wall 140 has an elongated slot for the connecting rod 320 to pass through.

[0051] It is understandable that, since the connecting rod 320 needs to make a reciprocating swinging motion, and since the sample 01 also needs to be heated inside the box 100, an elongated waist-shaped hole is opened in the side wall 140 of the box 100 to reserve space for the connecting rod 320 to move, so as not to cause a large amount of heat loss inside the box 100.

[0052] Preferably, the second fixing clamp 330 is clamped at the center position of the spline 01 along its axial direction.

[0053] In this embodiment, the second fixing fixture 330 is clamped at exactly the center of the sample 01, which can achieve a better effect on the simulated aging of the sample 01.

[0054] Preferably, the rotation angle range of the second drive motor 310 is ±5°.

[0055] In this embodiment, the second drive motor 310 drives the connecting rod 320 and clamps it to the middle position of the spline 01 through the second fixing clamp 330 at the other end of the connecting rod 320. Then, the second drive motor 310 makes a periodic twist at -5° to 5°. Of course, the twist angle of the second drive motor 310 needs to be set according to the actual performance of the spline 01, which is not specifically limited here.

[0056] Preferably, heating tubes are evenly laid on the inner wall of the box 100 to uniformly heat the sample 01.

[0057] Understandably, in order to ensure uniform heating of sample 01, a layer of heating pipes is evenly laid on the inner wall of the chamber 100. When the heating pipes are working, they can accelerate the aging of sample 01, and because sample 01 is heated evenly, the simulated aging effect will be better.

[0058] Of course, the heating device can also be adjusted according to the actual situation, as long as it can heat the sample 01 inside the box 100 evenly. This article does not make specific limitations here.

[0059] Preferably, the housing 100 is equipped with a temperature sensor 400, which can detect the temperature inside the housing 100 and control the operation of the heating element.

[0060] Furthermore, in order to better control the process of simulating the aging of the sample 01, a temperature sensor 400 is also installed on the top 130 of the chamber 100. The temperature sensor 400 can detect the temperature inside the chamber 100 in real time and transmit the temperature data. The operator can then adjust the temperature of the chamber 100 according to the temperature data. In this embodiment, the temperature of the chamber 100 is generally set at 90°C or 105°C for aging.

[0061] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0062] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0063] The embodiments provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A fixture for accelerating the aging of polymer materials, used to destroy dumbbell-shaped polymer material specimens (01), characterized in that, include: The box (100) has the spline (01) detachably fixed inside the box (100), and the box (100) can heat the spline (01); A first breaking component (200) is installed in the housing (100). The first breaking component (200) is used to stretch and compress the spline (01), and the movement direction of the first breaking component (200) is on the same straight line as the axis of the spline (01). The second destructive component (300) is installed on the housing (100) and is set perpendicular to the spline (01). The second destructive component (300) is used to drive the spline (01) to swing in a plane perpendicular to its axis.

2. The fixture for accelerated aging of polymer materials according to claim 1, characterized in that, The box (100) has a square structure, and a fixing seat (120) is provided at its bottom (110). The fixing seat (120) is used to clamp the spline (01).

3. The fixture for accelerated aging of polymer materials according to claim 2, characterized in that, The first destructive component (200) is mounted on the top (130) of the housing (100) and is opposite to the fixed base (120). The first destructive component (200) includes a first drive motor (210) and a first fixing clamp (220) mounted on the movable end of the first drive motor (210). The first fixing clamp (220) is used to clamp the end of the spline (01) away from the fixed base (120).

4. The fixture for accelerated aging of polymer materials according to claim 3, characterized in that, The second destructive component (300) is disposed on the side wall (140) of the housing (100). The second destructive component (300) includes a second drive motor (310), a connecting rod (320) mounted on the end of the second drive motor (310), and a second fixing clamp (330) provided at the end of the connecting rod (320) for clamping the spline (01). The second drive motor (310) is used to drive the spline (01) to swing perpendicular to its axis through the connecting rod (320).

5. The fixture for accelerated aging of polymer materials according to claim 4, characterized in that, The first transmission motor (210) is specifically a telescopic cylinder, and the second transmission motor (310) is specifically a rotary motor.

6. The fixture for accelerated aging of polymer materials according to claim 4, characterized in that, The sidewall (140) has an elongated waist-shaped hole for the connecting rod (320) to pass through.

7. The fixture for accelerated aging of polymer materials according to claim 4, characterized in that, The second fixing clamp (330) is clamped at the center of the spline (01) along its axial direction.

8. The fixture for accelerated aging of polymer materials according to claim 5, characterized in that, The rotation angle range of the second drive motor (310) is ±5°.

9. The fixture for accelerated aging of polymer materials according to claim 1, characterized in that, Heating tubes are evenly laid on the inner wall of the box (100) to heat the sample (01) evenly.

10. The fixture for accelerated aging of polymer materials according to claim 9, characterized in that, The housing (100) is equipped with a temperature sensor (400), which can detect the temperature inside the housing (100) and control the operation of the heating tube.

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