Toughness detector for composite film

Abstract

The utility model provides a composite film toughness detector, which relates to the technical field of film toughness detection, and comprises a support main frame, the right side of the support main frame is provided with a connecting frame; a mounting frame is arranged on the connecting frame; two sample clamping rings are arranged on the front side of the mounting frame; an adjusting knob is arranged on a mounting frame, a swing rod is clamped with an elastic buckle of a positioning frame, meanwhile, a positioning clamping plate is in contact with the swing rod, the swing rod can be buffered by utilizing the elastic effect of a second compression spring, the situation that the swing rod collides with a sample clamping ring due to the influence of inertia is avoided, and the use reliability is improved; the problems that a sample clamping ring is generally locked and positioned through multiple compression bolts, the adjusting process is troublesome, a reasonable self-locking structure is lacked, the clamping stability of a composite film sample is affected, a swing rod swings in a reciprocating mode under the influence of inertia, the swing rod is prone to colliding with the sample clamping ring or a supporting component, and accessories are damaged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of film toughness detection, in particular to a composite film toughness detection machine. Background Art

[0002] Impact strength is one of the important mechanical properties of materials. The impact performance test is to measure the impact strength of materials under impact load, which is used to measure the toughness or resistance to fracture of polymer materials under high-speed impact, also known as impact toughness. Different impact test methods can be selected for different materials or different uses. The commonly used method is the pendulum impact test. The punch of the pendulum film impact tester impacts and passes through the composite film at a certain speed, and the energy consumed by the punch is measured to determine the impact mass and energy when the composite film sample is broken.

[0003] When the existing composite film toughness testing machine is in use, the sample clamping ring is generally locked and positioned with multiple clamping bolts. The adjustment process is relatively complicated and there is a lack of a reasonable self-locking structure, which affects the stability of the composite film sample clamping. In addition, the swing arm will swing back and forth due to inertia, which may easily collide with the sample clamping ring or supporting components, causing damage to the accessories. Utility Model Content

[0004] The disclosed embodiment relates to a composite film toughness testing machine, which utilizes the elastic effect of the first compression spring to push the adjusting knob to slide downward along the spline axis, so that the ratchet claw is engaged in the ratchet groove, thereby completing the self-locking process of the adjusting rod, and effectively improving the stability of the sample clamping ring; the swing arm is engaged with the elastic buckle of the positioning frame, and the positioning clamp is in contact with the swing arm, and the elastic effect of the second compression spring can be used to buffer the swing arm, so as to prevent the swing arm from colliding with the sample clamp ring due to inertia, thereby improving the reliability of use.

[0005] According to a first aspect of the present disclosure, a composite film toughness testing machine is provided, which specifically includes: a supporting main frame, a connecting frame is provided on the right side of the supporting main frame; a mounting frame is provided on the connecting frame; two sample clamping rings are provided on the front side of the mounting frame, and a composite film body is clamped between the two sample clamping rings; an adjusting knob is provided on the mounting frame; a swing rod is provided in front of the supporting main frame, and the swing rod is rotatably connected to the supporting main frame through a rotating shaft; a positioning frame is provided at the front of the supporting main frame, and the positioning frame is located below the connecting frame; a positioning clamping plate is provided on the positioning frame; and a punch is provided on the swing rod.

[0006] In at least some embodiments, a base is provided at the bottom end of the supporting main frame, and a dial is provided at the top end of the supporting main frame.

[0007] In at least some embodiments, the mounting frame is provided with two limit grooves, and the two limit grooves are distributed in a left-right symmetrical manner. The limit grooves are rectangular cavity structures, and limit round rods are provided in the limit grooves. Two support plates are provided at the rear of the mounting frame, and the two support plates are distributed in an up-and-down symmetrical manner. A ratchet groove is provided on the top of the upper support plate, and an adjustment rod is rotatably installed between the two support plates.

[0008] In at least some embodiments, the outer circumference of the adjusting rod is provided with two reverse threads, and the two reverse threads are distributed symmetrically in an upper and lower manner, a spline shaft is provided at the top of the adjusting rod, and the adjusting knob is arranged on the spline shaft, a baffle is provided at the top of the spline shaft, and a first compression spring is mounted on the spline shaft.

[0009] In at least some embodiments, sliding frames are provided on the left and right sides of the two sample clamping rings, and the two sliding frames are distributed in a symmetrical manner. A limiting through hole is provided on the sliding frame. The sample clamping ring is slidably connected to the limiting groove of the mounting frame through the sliding frame, and the limiting round rod slides through the limiting through hole. An adjusting frame is provided between the rear ends of the two sliding frames, and a threaded sleeve is provided in the middle position of the adjusting frame, and the threaded sleeve is fitted on the reverse thread of the adjusting rod.

[0010] In at least some embodiments, a spline sleeve is provided in the middle position of the adjusting knob, a ratchet pawl is provided at the bottom of the adjusting knob, the adjusting knob is slidably connected to the spline shaft through the spline sleeve, the ratchet pawl matches the ratchet groove, and the first compression spring is supported between the adjusting knob and the baffle.

[0011] In at least some embodiments, a fixing frame is provided at the rear of the positioning frame, and the fixing frame is fixedly connected to the supporting main frame, two elastic clips are provided on the left side of the positioning frame, and the two elastic clips are symmetrically distributed, and the two elastic clips correspond to the positions of the swing rod, the positioning frame is provided with two guide grooves, and an installation sleeve is provided inside the positioning frame.

[0012] In at least some embodiments, the positioning clamp is a half-arc structure, and a guide slider is provided on the front and rear sides of the positioning clamp, a sliding rod is provided on the right side of the positioning clamp, and a second compression spring is mounted on the sliding rod. The positioning clamp is slidably connected to the guide groove of the positioning frame through the guide slider, and the sliding rod is slidably inserted in the mounting sleeve, and the second compression spring is supported between the positioning clamp and the mounting sleeve.

[0013] The utility model provides a composite film toughness testing machine, which has the following beneficial effects:

[0014] In the utility model, the adjusting rod is driven to rotate by turning the adjusting knob, and the reverse thread of the adjusting rod is used for transmission with the threaded sleeve, so that the sliding frame can drive the two sample clamping rings to slide toward each other along the limit groove, thereby completing the clamping of the composite film body. The utility model has a simple structure and is easy to use and operate. At the same time, the elastic effect of the first compression spring can be used to push the adjusting knob to slide downward along the spline axis, so that the ratchet claw is engaged in the ratchet groove, thereby completing the self-locking process of the adjusting rod, and effectively improving the stability of the sample clamping ring.

[0015] In addition, the utility model is provided with a positioning frame and a positioning clamp. When the swing rod drives the punch to complete the impact test of the composite film body, the swing rod will continue to swing to the right due to inertia, so that it is clamped with the elastic buckle of the positioning frame. At the same time, the positioning clamp is in contact with the swing rod, and the elastic action of the second compression spring can be used to buffer the swing rod, thereby realizing rapid positioning of the swing rod. By buffering and protecting the swing rod, the swing rod can be prevented from colliding with the sample clamp ring due to inertia, thereby improving the reliability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 The overall axial viewing angle structure schematic diagram of the present application is shown;

[0020] Figure 2 A schematic diagram of the structure of the mounting frame, sample clamp ring and adjustment knob of the present application is shown;

[0021] Figure 3 This application shows Figure 2 Schematic diagram of the explosion state structure;

[0022] Figure 4 A schematic diagram of the structure of the adjustment knob and the mounting frame in the exploded state of the present application is shown;

[0023] Figure 5 A schematic diagram of the structure of the swing rod, the positioning frame and the positioning clamping plate in the present application is shown;

[0024] Figure 6 A schematic diagram of the structure of the positioning frame and the positioning clamping plate of the present application in an exploded state is shown.

[0025] List of reference numerals:

[0026] 1. Support main frame; 101. Base; 102. Dial;

[0027] 2. Connecting frame;

[0028] 3. Mounting frame; 301. Limiting groove; 302. Limiting round rod; 303. Support plate; 304. Ratchet groove; 305. Adjusting rod; 3051. Reverse thread; 3052. Spline shaft; 3053. Baffle; 3054. First compression spring;

[0029] 4. Sample clamp ring; 401. Sliding frame; 402. Position limiting through hole; 403. Adjusting frame; 404. Threaded sleeve;

[0030] 5. Adjustment knob; 501. Spline sleeve; 502. Ratchet claw;

[0031] 6. Swinging rod;

[0032] 7. Positioning frame; 701. Fixing frame; 702. Elastic buckle; 703. Guide groove; 704. Mounting sleeve;

[0033] 8. Positioning clamp; 801. Guide slide block; 802. Sliding rod; 803. Second compression spring;

[0034] 9. Punch. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] Example 1: Please refer to Figures 1 to 6 :

[0037] The utility model proposes a composite film toughness testing machine, comprising: a supporting main frame 1, a connecting frame 2 is arranged on the right side of the supporting main frame 1; a mounting frame 3 is arranged on the connecting frame 2; two sample clamping rings 4 are arranged on the front side of the mounting frame 3, and a composite film body is clamped between the two sample clamping rings 4; an adjusting knob 5 is arranged on the mounting frame 3; a swing rod 6 is arranged in front of the supporting main frame 1, and the swing rod 6 is rotatably connected to the supporting main frame 1 through a rotating shaft; a positioning frame 7 is arranged at the front of the supporting main frame 1, and the positioning frame 7 is located below the connecting frame 2; a positioning clamping plate 8 is arranged on the positioning frame 7; a punch 9 is arranged on the swing rod 6;

[0038] A base 101 is provided at the bottom end of the supporting main frame 1 , and a dial 102 is provided at the top of the supporting main frame 1 .

[0039] In the present disclosure, Figures 2 to 4 As shown, the mounting frame 3 is provided with two limiting grooves 301, and the two limiting grooves 301 are distributed in a left-right symmetrical manner, the limiting grooves 301 are rectangular cavity structures, and limiting round rods 302 are provided in the limiting grooves 301, and two supporting plates 303 are provided at the rear of the mounting frame 3, and the two supporting plates 303 are distributed in a vertically symmetrical manner, and a ratchet groove 304 is provided on the top of the upper supporting plate 303, and an adjusting rod 305 is rotatably installed between the two supporting plates 303;

[0040] The outer circumference of the adjusting rod 305 is provided with two reverse threads 3051, and the two reverse threads 3051 are distributed in a vertically symmetrical manner. The top of the adjusting rod 305 is provided with a spline shaft 3052, and the adjusting knob 5 is arranged on the spline shaft 3052. The top of the spline shaft 3052 is provided with a baffle 3053, and the spline shaft 3052 is sleeved with a first compression spring 3054;

[0041] Sliding frames 401 are provided on the left and right sides of the two sample clamping rings 4, and the two sliding frames 401 are distributed in a symmetrical manner. A limiting through hole 402 is provided on the sliding frame 401. The sample clamping ring 4 is slidably connected with the limiting groove 301 of the mounting frame 3 through the sliding frame 401, and the limiting round rod 302 slides through the limiting through hole 402. An adjusting frame 403 is provided between the rear ends of the two sliding frames 401. A threaded sleeve 404 is provided in the middle position of the adjusting frame 403, and the threaded sleeve 404 is sleeved on the reverse thread 3051 of the adjusting rod 305.

[0042] A spline sleeve 501 is provided in the middle position of the adjusting knob 5, and a ratchet claw 502 is provided at the bottom of the adjusting knob 5. The adjusting knob 5 is slidably connected to the spline shaft 3052 through the spline sleeve 501, and the ratchet claw 502 matches the ratchet groove 304, and the first compression spring 3054 is supported between the adjusting knob 5 and the baffle 3053. The adjusting rod 305 is driven to rotate by rotating the adjusting knob 5. The reverse thread 3051 of the adjusting rod 305 is transmitted with the threaded sleeve 404, so that the sliding frame 401 can drive the two sample clamping rings 4 to slide toward each other along the limiting groove 301, thereby completing the clamping of the composite film body. At the same time, the elastic effect of the first compression spring 3054 can push the adjusting knob 5 to slide downward along the spline shaft 3052, so that the ratchet claw 502 is engaged in the ratchet groove 304, thereby completing the self-locking process of the adjusting rod 305.

[0043] Embodiment 2, based on embodiment 1, as Figure 5 and Figure 6As shown, a fixing frame 701 is provided at the rear of the positioning frame 7, and the fixing frame 701 is fixedly connected to the supporting main frame 1, two elastic buckles 702 are provided on the left side of the positioning frame 7, and the two elastic buckles 702 are distributed in a symmetrical manner, and the two elastic buckles 702 correspond to the positions of the swing rod 6, the positioning frame 7 is provided with two guide grooves 703, and a mounting sleeve 704 is provided inside the positioning frame 7;

[0044] The positioning splint 8 is a half-arc structure, and a guide slider 801 is provided on the front and rear sides of the positioning splint 8, a sliding rod 802 is provided on the right side of the positioning splint 8, and a second compression spring 803 is mounted on the sliding rod 802. The positioning splint 8 is slidably connected with the guide groove 703 of the positioning frame 7 through the guide slider 801, and the sliding rod 802 is slidably inserted in the installation sleeve 704, and the second compression spring 803 is supported between the positioning splint 8 and the installation sleeve 704. The utility model is provided with a positioning frame 7 and a positioning splint 8. When the swing rod 6 drives the punch 9 to complete the impact test of the composite film body, the swing rod 6 will continue to swing to the right under the action of inertia, so that it is clamped with the elastic buckle 702 of the positioning frame 7. At the same time, the positioning splint 8 contacts with the swing rod 6, and the elastic action of the second compression spring 803 can be used to buffer the swing rod 6, thereby realizing the rapid positioning of the swing rod 6.

[0045] The working principle of this embodiment is as follows: when in use, the adjusting rod 305 is driven to rotate by turning the adjusting knob 5, and the reverse thread 3051 of the adjusting rod 305 is used to transmit the transmission with the threaded sleeve 404, so that the sliding frame 401 can drive the two sample clamping rings 4 to slide toward each other along the limiting groove 301, thereby completing the clamping of the composite film body, and at the same time, the elastic effect of the first compression spring 3054 can be used to push the adjusting knob 5 to slide downward along the spline shaft 3052, so that the ratchet claw 502 is engaged in the ratchet groove 304, thereby completing the self-locking process of the adjusting rod 305; when the swing rod 6 drives the punch 9 to complete the impact test of the composite film body, the swing rod 6 will continue to swing to the right due to inertia, so that it is engaged with the elastic buckle 702 of the positioning frame 7, and at the same time, the positioning clamping plate 8 is in contact with the swing rod 6, and the elastic effect of the second compression spring 803 can be used to buffer the swing rod 6, thereby realizing the rapid positioning of the swing rod 6.

[0046] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A composite film toughness testing machine, characterized in that: include: A supporting main frame, a connecting frame is provided on the right side of the supporting main frame; a mounting frame is provided on the connecting frame; two sample clamping rings are provided on the front side of the mounting frame, and a composite film body is clamped between the two sample clamping rings; an adjusting knob is provided on the mounting frame; a swing rod is provided in front of the supporting main frame, and the swing rod is rotatably connected to the supporting main frame through a rotating shaft; a positioning frame is provided at the front of the supporting main frame, and the positioning frame is located below the connecting frame; a positioning clamping plate is provided on the positioning frame; and a punch is provided on the swing rod.

2. A composite film toughness testing machine according to claim 1, characterized in that: A base is provided at the bottom end of the supporting main frame, and a dial is provided at the top of the supporting main frame.

3. A composite film toughness testing machine according to claim 1, characterized in that: The mounting frame is provided with two limit grooves, and the two limit grooves are distributed in a left-right symmetrical manner. The limit grooves are rectangular cavity structures, and limit round rods are provided in the limit grooves. Two support plates are provided at the rear of the mounting frame, and the two support plates are distributed in an up-and-down symmetrical manner. A ratchet groove is provided on the top of the upper support plate, and an adjustment rod is rotatably installed between the two support plates.

4. A composite film toughness testing machine according to claim 3, characterized in that: The outer circumference of the adjusting rod is provided with two reverse threads, and the two reverse threads are distributed in an upper and lower symmetrical manner. A spline shaft is provided at the top of the adjusting rod, and the adjusting knob is arranged on the spline shaft. A baffle is provided at the top of the spline shaft, and a first compression spring is mounted on the spline shaft.

5. A composite film toughness testing machine according to claim 1, characterized in that: Sliding frames are provided on the left and right sides of the two sample clamping rings, and the two sliding frames are distributed in a symmetrical manner. A limiting through hole is provided on the sliding frame. The sample clamping ring is slidably connected with the limiting groove of the mounting frame through the sliding frame, and the limiting round rod slides through the limiting through hole. An adjusting frame is provided between the rear ends of the two sliding frames, and a threaded sleeve is provided in the middle position of the adjusting frame, and the threaded sleeve is fitted on the reverse thread of the adjusting rod.

6. A composite film toughness testing machine according to claim 1, characterized in that: A spline sleeve is provided in the middle of the adjusting knob, a ratchet pawl is provided at the bottom of the adjusting knob, the adjusting knob is slidably connected to the spline shaft through the spline sleeve, the ratchet pawl matches the ratchet groove, and the first compression spring is supported between the adjusting knob and the baffle.

7. A composite film toughness testing machine according to claim 1, characterized in that: A fixing frame is provided at the rear of the positioning frame, and the fixing frame is fixedly connected to the supporting main frame. Two elastic clips are provided on the left side of the positioning frame, and the two elastic clips are symmetrically distributed and correspond to the positions of the swing rod. The positioning frame is provided with two guide grooves, and an installation sleeve is provided in the positioning frame.

8. A composite film toughness testing machine according to claim 1, characterized in that: The positioning clamp plate is a half-arc structure, and guide sliders are provided on the front and rear sides of the positioning clamp plate, a sliding rod is provided on the right side of the positioning clamp plate, and a second compression spring is mounted on the sliding rod. The positioning clamp plate is slidably connected to the guide groove of the positioning frame through the guide slider, and the sliding rod is slidably inserted in the installation sleeve, and the second compression spring is supported between the positioning clamp plate and the installation sleeve.

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