Impact testing machine for testing performance of thin film
Through the motor-driven screw system and pneumatic clamps, the height of the dart head is automatically adjusted, which solves the problem of cumbersome dart head adjustment in the existing film impact test, and achieves high efficiency and high accuracy of film testing.
Patent Information
- Application Number
- CN202422333748.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the existing film impact test, the height adjustment of the dart head is cumbersome and inaccurate, which affects the accuracy and efficiency of the test results.
The motor-driven screw system and pneumatic clamps are used to achieve automatic adjustment of the height of the dart head, and the start and stop of the motor and cylinder are controlled through the control panel, simplifying the operation process.
Improves the efficiency and accuracy of film testing, and the dart head height is quickly and accurately adjusted, suitable for multiple tests.
Smart Images
Figure CN223179979U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film testing devices, and specifically relates to an impact testing machine for testing the performance of films. Background Technique
[0002] After the film is produced, according to the requirements of its performance, an impact test needs to be carried out on it. In the past, the film impact test was usually to manually press the film on a fixture, then pull the dart head to a certain height, release the dart head, and let the dart head freely fall onto the film, so as to conduct an impact test on the film. At present, when adjusting the height of the dart head, a ruler is still needed to measure the height of the dart head until the height of the dart head meets the actual test requirements. The whole adjustment process is very troublesome, and due to the need to manually measure the height of the dart head, there is a problem that the height of the dart head is inaccurate, which reduces the accuracy and test efficiency of the test results of film materials. Content of the Utility Model
[0003] The purpose of the utility model is to provide an impact testing machine for testing the performance of films, so as to solve the technical problems in the background technique.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:
[0005] An impact testing machine for testing the performance of films, including a base, a falling dart mechanism, and a positioning fixture for clamping a sample to be tested. The falling dart mechanism includes a mounting frame, a first motor, a lead screw, a dart head, and a clamping assembly for clamping the dart head. The mounting frame is fixed on the base, the first motor is fixed inside the mounting frame, the lead screw is vertically arranged above the mounting frame and its bottom end is drivingly connected to the first motor. One end of the clamping assembly is threadedly and movably connected to the lead screw through a nut, and the other end clamps the dart head. The dart head is vertically suspended above the base, and the positioning fixture is mounted on the base and below the dart head.
[0006] The clamping assembly includes a movable plate and a pneumatic clamp installed below the movable plate. One end of the movable plate is installed with a nut threadedly connected to the lead screw, and the pneumatic clamp clamps the dart head.
[0007] Guide rods are respectively installed on the left and right sides of the lead screw. The guide rods are parallel to the lead screw. The movable plate passes through the guide rods, and the bottom ends of the guide rods are fixedly installed with the mounting frame.
[0008] The positioning fixture includes an upper clamping plate, a lower clamping table, and a thin cylinder for driving the upper clamping plate to move up and down. The thin cylinder is fixedly installed on the base through a support frame. The thin cylinder is below the base. The lower clamping table is installed above the base. The upper clamping plate is above the lower clamping table. Ears are respectively extended outward at the left and right ends of the upper clamping plate. A driving rod is vertically fixed at the lower end of the ear, and the driving rod is drivingly connected to the thin cylinder.
[0009] Compared with the prior art, an impact testing machine for testing the performance of a thin film provided by the utility model is simple and fast to operate. Through the cooperation of a motor and a lead screw, the automatic adjustment of the dart head placed at different heights can be realized, the time for adjusting the position of the dart head is reduced, the efficiency and accuracy of the thin film test are effectively improved, and for the same type of thin film, the test can be carried out multiple times after adjusting the height position of the dart head once. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 : The three-dimensional structure diagram of the present application;
[0011] Figure 2 : Figure 1 The enlarged view of part A of
[0012] Figure 3 : The front view of the present application;
[0013] Figure 4 : The structure diagram of the positioning fixture. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0014] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
[0015] Specific Embodiment 1: Please refer to Figures 1 to 4 , an impact testing machine for testing the performance of a thin film in this embodiment includes a base 1, a dart dropping mechanism 4, and a positioning fixture 3 for clamping a sample to be tested. The dart dropping mechanism 4 includes a mounting frame 401, a first motor 402, a lead screw 403, a dart head 406, and a clamping assembly 405 for clamping the dart head 406. The mounting frame 401 is fixed on the base 1, the first motor 402 is fixed inside the mounting frame 401, the lead screw 403 is vertically arranged above the mounting frame 401 and its bottom end is drivingly connected to the first motor 402. One end of the clamping assembly 405 is threadedly and movably connected to the lead screw 403 through a nut 405-3, and the other end clamps the dart head 406. The dart head 406 is vertically suspended above the base 1, and the positioning fixture 3 is mounted on the base 1 and below the dart head 406.
[0016] The clamping assembly 405 includes a movable plate 405-1 and a pneumatic clamp 405-2 mounted below the movable plate 405-1. One end of the movable plate 405-1 is provided with a nut 405-3 which is threadedly connected to the lead screw 403, and the pneumatic clamp 405-2 clamps the dart head 406.
[0017] Guide rods 404 are respectively mounted on the left and right sides of the lead screw 403. The guide rods 404 are parallel to the lead screw 403. The movable plate 405-1 passes through the guide rods 404, and the bottom ends of the guide rods 404 are fixedly mounted on the mounting frame 401.
[0018] The positioning fixture 3 includes an upper clamping plate 301, a lower clamping table 302, and a thin cylinder 303 for driving the up and down movement of the upper clamping plate 301. The thin cylinder 303 is fixedly installed on the base 1 through a support frame. The thin cylinder 303 is located below the base 1. The lower clamping table 302 is installed above the base 1, and the upper clamping plate 301 is above the lower clamping table 302. The left and right ends of the upper clamping plate 301 respectively extend outward with ear portions 301-1. The lower ends of the ear portions 301-1 are vertically fixed with driving rods 305. The driving rods 305 are drivingly connected to the thin cylinder 303. A connecting plate 306 is connected between the two driving rods 305 and is installed with the thin cylinder 303.
[0019] By setting the positioning fixture 3 to clamp the film, just place the film between the lower clamping table 302 and the upper clamping plate 301, start the thin cylinder 303 to drive the upper clamping plate 301 to press down and clamp the film. The dart head 406 is fixed on the movable plate 405-1 through a pneumatic clamp 405-2. Adjust the height position of the movable plate 405-1 on the lead screw 403, so as to control the height of the lower end of the dart head 406. After adjusting to the set position, control the pneumatic clamp 405-2 to release the dart head 406. The dart head 406 freely falls onto the film for impact testing of the film. This structure is easy to operate. Moreover, for the same type of film, after adjusting the height position of the movable plate 405-1 once, the test can be carried out multiple times. This device has high precision in position adjustment and high test precision.
[0020] A control panel 2 is also installed on the base 1. The start and stop of the first motor 402, the thin cylinder 303, and the pneumatic clamp 405-2 are controlled through the control panel 2, and manual operation can be carried out through the control panel 2.
[0021] Compared with the prior art, an impact testing machine for testing the performance of a film provided by the present utility model is simple and fast to operate. Through the cooperation of the motor and the lead screw, the automatic adjustment of the dart head placed at different heights can be realized, reducing the time for adjusting the position of the dart head, effectively improving the efficiency and accuracy of the film test. For the same type of film, after adjusting the height position of the dart head once, the test can be carried out multiple times.
[0022] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the foregoing 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 foregoing description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0023] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An impact testing machine for testing the performance of a thin film, characterized in that: It includes a base, a dart dropping mechanism, and a positioning fixture for clamping a sample to be tested. The dart dropping mechanism includes a mounting frame, a first motor, a lead screw, a dart head, and a clamping assembly for clamping the dart head. The mounting frame is fixed on the base, the first motor is fixed inside the mounting frame, the lead screw is vertically arranged above the mounting frame and its bottom end is drivingly connected to the first motor. One end of the clamping assembly is threadedly and movably connected to the lead screw through a nut, and the other end clamps the dart head. The dart head is vertically suspended above the base, and the positioning fixture is mounted on the base and below the dart head.
2. The impact testing machine for testing the properties of a thin film according to claim 1, characterized in that: The clamping assembly includes a movable plate and a pneumatic clamp mounted below the movable plate. One end of the movable plate is provided with a nut threadedly connected to the lead screw, and the pneumatic clamp clamps the dart head.
3. The impact testing machine for testing the properties of a thin film according to claim 2, characterized in that: Guide rods are respectively mounted on the left and right sides of the lead screw. The guide rods are parallel to the lead screw. The movable plate passes through the guide rods, and the bottom ends of the guide rods are fixedly mounted on the mounting frame.
4. An impact testing machine for testing the performance of a thin film according to claim 3, characterized in that: The positioning fixture includes an upper clamping plate, a lower clamping table, and a thin cylinder for driving the upper clamping plate to move up and down. The thin cylinder is fixedly mounted on the base through a support frame. The thin cylinder is below the base. The lower clamping table is mounted above the base. The upper clamping plate is above the lower clamping table. Ears are respectively extended outward from the left and right ends of the upper clamping plate. A driving rod is vertically fixed at the lower end of the ear, and the driving rod is drivingly connected to the thin cylinder.