Pendulum impact machine

Abstract

The utility model relates to the technical field of material detection, in particular to a pendulum bob impact machine which can heat a sample piece to be detected in a detection process, so that the sample piece to be detected can be impacted by a hammer head in a high-temperature state, the impact resistance of the sample piece to be detected at the high temperature can be detected, and the pendulum bob impact machine is convenient to use, low in limitation and high in practicability. The practicability is high; comprising a bottom plate and hammerheads, the device further comprises a driving mechanism, a clamping mechanism, a lifting mechanism and a heating mechanism, the driving mechanism is used for driving the hammer head to move, the clamping mechanism is installed on the lifting mechanism, the clamping mechanism has a clamping and fixing function, the lifting mechanism is used for adjusting the height of the clamping mechanism, the heating mechanism is installed on the bottom plate, and the heating mechanism has a heating function.

Description

Technical Field

[0001] This utility model relates to the technical field of material testing, and in particular to a pendulum impact machine. Background Technology

[0002] A pendulum impact tester is an experimental device used to test the impact resistance of materials, and it is widely used in materials science, engineering, quality control, and other fields. It simulates the impact environment that materials may experience in actual use to test their impact resistance. In the prior art, a utility model patent with patent application number 201921125979.X discloses a pendulum impact testing machine, which mainly consists of a pendulum, a pendulum rod, and a support platform. When testing the impact resistance of materials, the sample to be tested is placed on the support platform and fixed. Then, the pendulum strikes the sample, and the impact resistance of the sample can be inferred by observing the results. However, this device has the following problems in its use: for some materials that need to be used under high-temperature conditions, temperature also affects the impact resistance of the material. The aforementioned prior art device obviously cannot test the impact resistance of materials under high-temperature conditions, making it inconvenient to use and highly limited in its application. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a pendulum impact machine that can heat the sample to be tested during the testing process, so that the sample to be tested can be impacted by the hammer head at a high temperature, and the impact resistance of the sample to be tested at a high temperature can be tested. It is easy to use, has low limitations, and is highly practical.

[0004] This utility model discloses a pendulum impact tester, comprising a base plate and a hammer head; it also includes a drive mechanism, a clamping mechanism, a lifting mechanism, and a heating mechanism. The drive mechanism drives the hammer head to move; the clamping mechanism is mounted on the lifting mechanism and has a clamping and fixing function; the lifting mechanism is used to adjust the height of the clamping mechanism; and the heating mechanism is mounted on the base plate and has a heating function. When it is necessary to test the impact resistance of a sample under high temperature, the sample is first clamped and fixed by the clamping mechanism. Then, the lifting mechanism lowers the sample until it is at the same height as the heating mechanism. Finally, the heating mechanism heats the sample to the required temperature. The test involves heating the sample to a specified temperature, then using a lifting mechanism to raise the clamping mechanism to the same height as the falling hammer. The hammer is then raised via a drive mechanism and released, allowing it to move towards the sample under gravity, bringing it into contact with the sample and impacting it. The impact resistance of the sample is then assessed by observing whether it deforms or breaks. Because the test can heat the sample during the process, it allows for high-temperature impact testing, making it convenient, with few limitations and high practicality.

[0005] Preferably, the lifting mechanism includes a hydraulic cylinder and a push rod. The hydraulic cylinder is fixedly mounted on the base plate, and the lower end of the push rod is connected to the output end of the hydraulic cylinder. A clamping mechanism is mounted on the push rod when it rises. When adjusting the height of the sample to be tested, the lifting mechanism is opened, the lifting mechanism adjusts the height of the clamping mechanism, and the clamping mechanism adjusts the height of the sample to be tested, which facilitates the adjustment of the height of the sample to be tested.

[0006] Preferably, the clamping mechanism includes a fixed frame, a stepper motor, and two sets of three-jaw chucks A. The fixed frame is fixedly mounted on the upper end of the push rod. Rotating shafts are provided on both the left and right sides of the fixed frame, and both sets of rotating shafts are rotatably mounted on the fixed frame. The stepper motor is fixedly mounted on the fixed frame, and its output end is connected to one set of rotating shafts. The two sets of three-jaw chucks A are respectively fixedly mounted on the two sets of rotating shafts, and the two sets of rotating shafts are coaxial. When clamping and fixing the sample to be tested, the front and rear parts of the sample to be tested are placed on the two sets of three-jaw chucks A respectively, and then the two sets of three-jaw chucks A clamp the front and rear parts of the sample to be tested. The sample is fixed in place, and then a hydraulic cylinder drives a push rod to lower the fixed frame. The fixed frame, through a rotating shaft, causes a three-jaw chuck A to lower the sample to be tested, bringing it close to the heating mechanism. The heating mechanism then heats the sample. Simultaneously, a stepper motor is activated, which, through a rotating shaft, drives the three-jaw chuck A to rotate. The three-jaw chuck A then rotates the sample to be tested, which is then evenly heated by the heating mechanism to a suitable temperature. Finally, the sample is raised to a designated height and impacted by a hammer. This process facilitates the clamping, fixing, and rotation of the sample.

[0007] Preferably, the heating mechanism includes a support frame, a fixed plate, a cylinder, a sliding rod, a moving rod, and a moving plate. The fixed plate is fixedly mounted on the upper end of the base plate via the support frame. The cylinder is fixedly mounted on the left end of the fixed plate. The sliding rod and the moving rod are both slidably mounted on the fixed plate, with the left end of the sliding rod connected to the output end of the cylinder. The moving plate is fixedly mounted on the moving rod and the sliding rod. Multiple sets of heating lamps are provided on the right end of the moving plate. When heating the sample to be tested, the sample is lowered to the same height as the moving plate. Then, the cylinder is opened, and the cylinder moves the moving plate to the right via the sliding rod, bringing the heating lamps on the moving plate closer to the sample to be tested. Then, the heating lamps on the moving plate are turned on, heating the sample to be tested. At the same time, the sample to be tested is rotated, and the sample is evenly heated by the heating lamps during the rotation.

[0008] Preferably, the driving mechanism includes a support plate, a support block, a servo motor, a rotating shaft, a three-jaw chuck B, a rotating shaft, and a swing arm. The support plate is fixedly mounted on the base plate, the support block is fixedly mounted on the rear end of the support plate, the servo motor is fixedly mounted on the support block, and the output end of the servo motor is provided with a rotating shaft. The three-jaw chuck B is fixedly mounted on the front end of the rotating shaft, and the rotating shaft is rotatably mounted on the support plate. The rotating shaft is coaxial with the rotating shaft, and the rear part of the rotating shaft is clamped and fixed by the three-jaw chuck B. The upper and lower ends of the swing arm are respectively fixedly mounted on the rotating shaft and the hammer head. When the sample to be tested is impacted, the servo motor is turned on, and the servo motor drives the rotating shaft to rotate, which in turn causes the three-jaw chuck B to drive the rotating shaft and the swing arm to rotate, causing the hammer head to rotate around the axis of the rotating shaft and rise to a certain height. Then, the three-jaw chuck B is released, and the three-jaw chuck B stops clamping and fixing the rotating shaft. After that, the hammer head rotates clockwise under the action of gravity, and when the hammer head descends to the lowest point, it contacts the sample to be tested, so that the hammer head impacts the sample to be tested. This facilitates the impact testing of the sample to be tested.

[0009] Preferably, it also includes a pointer, which is mounted on the rotating shaft. The support plate is provided with a scale, and the pointer points to the scale on the support plate. With the above settings, the pointer rotates when the rotating shaft rotates, and the rotation angle of the rotating shaft can be estimated according to the scale value pointed to by the pointer on the support plate. It is convenient to use and highly practical.

[0010] Preferably, the stepper motor is provided with a dust cover.

[0011] Compared with the prior art, the advantages of this utility model are: the sample to be tested can be heated during the testing process, so the sample to be tested can be impacted by the hammer at a high temperature, and the impact resistance of the sample to be tested at a high temperature can be tested. It is convenient to use, has low limitations, and is highly practical. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the clamping mechanism;

[0015] Figure 4 This is a schematic diagram of the heating mechanism;

[0016] Figure 5 This is a structural diagram of the drive mechanism and the hammer.

[0017] The following are labels in the attached diagram: 1. Base plate; 2. Hammer head; 3. Hydraulic cylinder; 4. Push rod; 5. Fixing frame; 6. Stepper motor; 7. Three-jaw chuck A; 8. Support frame; 9. Fixing plate; 10. Cylinder; 11. Sliding rod; 12. Moving rod; 13. Moving plate; 14. Support plate; 15. Support block; 16. Servo motor; 17. Rotating shaft; 18. Three-jaw chuck B; 19. Rotating shaft; 20. Swing rod; 21. Pointer; 22. Sample to be tested. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0019] like Figures 1 to 5 The pendulum impact tester of this invention includes a base plate 1, a hammer head 2, a drive mechanism, a clamping mechanism, a lifting mechanism, and a heating mechanism. The drive mechanism drives the hammer head 2 to move. The clamping mechanism is mounted on the lifting mechanism and has the function of clamping and fixing. The lifting mechanism is used to adjust the height of the clamping mechanism. The heating mechanism is mounted on the base plate 1 and has the function of heating. When it is necessary to test the impact resistance of the sample 22 under high temperature, the sample 22 is first clamped and fixed by the clamping mechanism. Then, the lifting mechanism lowers the sample 22 until it is at the same height as the heating mechanism. Then, the heating mechanism heats the sample 22 to the required temperature. The lifting mechanism raises the clamping mechanism to lift the sample 22 to the same height as the falling hammer 2. Then, the driving mechanism raises the hammer 2, and the driving mechanism is released, allowing the hammer 2 to move towards the sample 22 under gravity, bringing it into contact with the sample. The hammer 2 then impacts the sample 22. The impact resistance of the sample 22 is then assessed by observing whether it deforms or breaks. Because the sample 22 can be heated during the testing process, it can be impacted by the hammer 2 at high temperatures, allowing for the testing of its impact resistance at high temperatures. This method is convenient, has few limitations, and is highly practical.

[0020] like Figure 3The lifting mechanism includes a hydraulic cylinder 3 and a push rod 4. The hydraulic cylinder 3 is fixedly installed on the base plate 1. The lower end of the push rod 4 is connected to the output end of the hydraulic cylinder 3. The clamping mechanism is installed on the push rod 4 when it rises. When adjusting the height of the sample 22 to be tested, the lifting mechanism is opened. The lifting mechanism adjusts the height of the clamping mechanism, and the clamping mechanism adjusts the height of the sample 22 to be tested, which facilitates the adjustment of the height of the sample 22 to be tested.

[0021] like Figure 3 The clamping mechanism includes a fixed frame 5, a stepper motor 6, and two sets of three-jaw chucks A7. The fixed frame 5 is fixedly mounted on the upper end of the push rod 4. Rotating shafts are provided on both the left and right sides of the fixed frame 5, and both sets of rotating shafts are rotatably mounted on the fixed frame 5. The stepper motor 6 is fixedly mounted on the fixed frame 5, and its output end is connected to one set of rotating shafts. The two sets of three-jaw chucks A7 are respectively fixedly mounted on the two sets of rotating shafts. When clamping and fixing the sample 22 to be tested, the front and rear parts of the sample 22 are placed on the two sets of three-jaw chucks A7 respectively. Then, the front and rear parts of the sample 22 are clamped and fixed by the two sets of three-jaw chucks A7, and then the hydraulic cylinder... 3. The push rod 4 drives the fixed frame 5 to descend. The fixed frame 5, through the rotating shaft, drives the three-jaw chuck A7 to descend, bringing the sample 22 to be tested closer to the heating mechanism. The heating mechanism then heats the sample 22. Simultaneously, the stepper motor 6 is turned on. The stepper motor 6, through the rotating shaft, drives the three-jaw chuck A7 to rotate. The three-jaw chuck A7 rotates the sample 22 to be tested. During the rotation, the sample 22 is evenly heated by the heating mechanism until it reaches a suitable temperature. Then, the sample 22 is raised to a specified height and impacted by the hammer head 2. This facilitates the clamping, fixing, and rotation of the sample 22.

[0022] like Figure 4 The heating mechanism includes a support frame 8, a fixed plate 9, a cylinder 10, a sliding rod 11, a moving rod 12, and a moving plate 13. The fixed plate 9 is fixedly installed on the upper end of the base plate 1 via the support frame 8. The cylinder 10 is fixedly installed on the left end of the fixed plate 9. The sliding rod 11 and the moving rod 12 are both slidably installed on the fixed plate 9. The left end of the sliding rod 11 is connected to the output end of the cylinder 10. The moving plate 13 is fixedly installed on the moving rod 12 and the sliding rod 11. Multiple sets of heating lamps are provided on the right end of the moving plate 13. When heating the sample 22 to be tested, the sample 22 is lowered to the same height as the moving plate 13. Then, the cylinder 10 is opened, and the cylinder 10 moves the moving plate 13 to the right via the sliding rod 11, so that the heating lamps on the moving plate 13 are close to the sample 22 to be tested. Then, the heating lamps on the moving plate 13 are turned on, so that the heating lamps on the moving plate 13 heat the sample 22 to be tested. At the same time, the sample 22 to be tested is rotated, and the sample 22 to be tested is evenly heated by the heating lamps during the rotation.

[0023] like Figure 1 and Figure 5 The drive mechanism includes a support plate 14, a support block 15, a servo motor 16, a rotating shaft 17, a three-jaw chuck B18, a rotating shaft 19, and a swing arm 20. The support plate 14 is fixedly mounted on the base plate 1, the support block 15 is fixedly mounted on the rear end of the support plate 14, the servo motor 16 is fixedly mounted on the support block 15, and the output end of the servo motor 16 is provided with a rotating shaft 17. The three-jaw chuck B18 is fixedly mounted on the front end of the rotating shaft 17, and the rotating shaft 19 is rotatably mounted on the support plate 14. The rotating shaft 19 is coaxial with the rotating shaft 17, and the rear part of the rotating shaft 19 is clamped and fixed by the three-jaw chuck B18. The upper and lower ends of the swing arm 20 are respectively fixedly mounted on the rotating shaft 17. On shaft 19 and hammer head 2; when impacting the sample 22, the servo motor 16 is activated, driving the rotating shaft 17 to rotate, which in turn causes the three-jaw chuck B18 to drive the rotating shaft 19 and the swing arm 20 to rotate, causing the hammer head 2 to rotate around the axis of the rotating shaft 19, raising the hammer head 2 to a certain height. Then, the three-jaw chuck B18 is released, stopping its clamping and fixing of the rotating shaft 19. Afterwards, the hammer head 2 rotates clockwise under the action of gravity, causing the hammer head 2 to descend to its lowest point and contact the sample 22, thus impacting the sample 22; this facilitates the impact testing of the sample 22. A dust cover is provided on the stepper motor 6. Example

[0024] Based on embodiment 1, a pointer 21 is also included. The pointer 21 is mounted on the rotating shaft 19, and a scale is provided on the support plate 14. The pointer 21 points to the scale on the support plate 14. With the above configuration, the pointer 21 is turned on when the rotating shaft 19 rotates. The rotation angle of the rotating shaft 19 can be inferred from the scale value pointed to by the pointer 21 on the support plate 14. It is convenient to use and highly practical.

[0025] The stepper motor 6, servo motor 16, and three-jaw chuck B18 of the pendulum impact machine of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A pendulum impact machine comprising a base plate (1) and a hammer head (2); characterized in that, It also includes driving mechanism, clamping mechanism, lifting mechanism and heating mechanism, the driving mechanism is used for driving hammer head (2) to move, the clamping mechanism is installed on the lifting mechanism, the clamping mechanism has the function of clamping fixation, the lifting mechanism is used for adjusting the height of the clamping mechanism, the heating mechanism is installed on the bottom plate (1), and the heating mechanism has the function of heating.

2. A pendulum impact machine as claimed in claim 1, characterized in that The lifting mechanism includes a hydraulic cylinder (3) and a push rod (4), the hydraulic cylinder (3) is fixedly installed on the bottom plate (1), the lower end of the push rod (4) is connected with the output end of the hydraulic cylinder (3), and the clamping mechanism is installed on the push rod (4) and rises.

3. A pendulum impact machine as claimed in claim 2, characterized in that The clamping mechanism includes a fixed frame (5), a stepping motor (6) and two groups of three-jaw chucks A (7), the fixed frame (5) is fixedly installed on the upper end of the push rod (4), both sides of the fixed frame (5) are provided with rotating shafts, both groups of rotating shafts are rotatably installed on the fixed frame (5), the stepping motor (6) is fixedly installed on the fixed frame (5), the output end of the stepping motor (6) is connected with one group of rotating shafts, and the two groups of three-jaw chucks A (7) are fixedly installed on the two groups of rotating shafts, and the two groups of rotating shafts are coaxial.

4. A pendulum impact machine as claimed in claim 1, characterized in that The heating mechanism includes a support frame (8), a fixed plate (9), a cylinder (10), a sliding rod (11), a moving rod (12) and a moving plate (13), the fixed plate (9) is fixedly installed on the upper end of the bottom plate (1) through the support frame (8), the cylinder (10) is fixedly installed on the left end of the fixed plate (9), the sliding rod (11) and the moving rod (12) are both slidably installed on the fixed plate (9), the left end of the sliding rod (11) is connected with the output end of the cylinder (10), the moving plate (13) is fixedly installed on the moving rod (12) and the sliding rod (11), and the right end of the moving plate (13) is provided with a plurality of heating lamps.

5. A pendulum impact machine as claimed in claim 1, characterized in that The driving mechanism includes a support plate (14), a support block (15), a servo motor (16), a rotating shaft (17), a three-jaw chuck B (18), a rotating shaft (19) and a swing rod (20), the support plate (14) is fixedly installed on the bottom plate (1), the support block (15) is fixedly installed on the rear end of the support plate (14), the servo motor (16) is fixedly installed on the support block (15), the output end of the servo motor (16) is provided with the rotating shaft (17), the three-jaw chuck B (18) is fixedly installed on the front end of the rotating shaft (17), the rotating shaft (19) is rotatably installed on the support plate (14), the rotating shaft (19) is coaxial with the rotating shaft (17), the rear part of the rotating shaft (19) is clamped and fixed by the three-jaw chuck B (18), and the upper and lower ends of the swing rod (20) are fixedly installed on the rotating shaft (19) and the hammer head (2) respectively.

6. A pendulum impact machine as claimed in claim 5, characterised in that It also includes a pointer (21), the pointer (21) is installed on the rotating shaft (19), the support plate (14) is provided with a scale, and the pointer (21) points to the scale on the support plate (14).

7. A pendulum impact machine as claimed in claim 3, characterized in that The stepping motor (6) is provided with a dust cover.

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