A device for testing the impact resistance of tool alloy materials

Abstract

The present application discloses a device for testing the impact resistance of a tool alloy material, which includes a test bench for placing a product to be tested; a pendulum, which can rotate under the action of gravity to impact the product to be tested on the test bench; a pendulum drive assembly, which is arranged above the pendulum, and the pendulum drive assembly is used to pull the pendulum up to a preset height; a camera protection tube, which is arranged above the test bench, and a camera assembly is connected to the camera protection tube along a vertical sliding connection, and the camera assembly can move in or out of the camera protection tube; a transmission rope, which is connected between the camera assembly and the pendulum drive assembly, when the pendulum drive assembly drives the pendulum to rise, the camera assembly can synchronously descend to a preset height under the action of its own weight, and when the pendulum descends, the camera assembly can be pulled up to the camera protection tube through the transmission rope. The present application can effectively perform an impact test on alloy materials and can accurately judge the state of the alloy materials after the impact test.

Description

Technical Field

[0001] The present application relates to the field of alloy material performance testing, and in particular to a device for testing the impact resistance of a tool alloy material. Background Art

[0002] Mechanical components such as crusher hammers, shield cutters, mining and mineral processing machinery cutters, and rolling mill rollers that work under heavy impact load conditions are widely used in cement, mining and mineral processing, tunnel construction, steel and other fields. The performance indicators of the above mechanical components are often the decisive factors for the overall equipment technical indicators and work efficiency. Take the shield machine for tunnel excavation as an example. When the shield machine is working underground in a hard geological environment such as granite, the single-knife pressure of the roller cutter, one of its core devices, during the collision with the rock can reach more than 300kN, the average stress level can reach hundreds of MPa, and the instantaneous peak load is as high as GPa. In order to slow down the wear and failure process of materials under such working conditions and extend the service life of components, materials with higher hardness grades are usually selected or developed to increase the service life of components, thereby improving the work efficiency of the overall mechanical device and reducing operating costs.

[0003] At present, tools such as crusher hammers are often made of alloy materials, which are materials composed of two or more metal or non-metal elements. Alloys usually have better performance and characteristics than single metals because they combine the advantages of different elements, but before using them, it is often necessary to evaluate the performance and durability of alloy materials under impact loads.

[0004] In the related art, the patent with the authorization announcement number CN217359429U discloses a diamond composite sheet impact resistance performance test device, including a bracket, a top hammer and an impactor, and also including a moving seat, a turntable and a driving assembly for driving the turntable to rotate, wherein the turntable is arranged on the moving seat, the top hammer is arranged on the turntable, and the impactor is arranged on the bracket. The diamond composite sheet impact resistance performance test device measures the impact resistance of the diamond composite sheet by the product value of the single impact work, the number of impacts, the correction coefficient K of the chamfer L of the diamond composite sheet and the correction coefficient M of the percentage of the damaged area. The larger the value, the better the impact resistance, which can accurately reflect the impact resistance of the diamond composite sheet, and has high test efficiency and reliability.

[0005] Regarding the above-mentioned related technologies, after the impact test of the diamond composite sheet, it is usually necessary to observe and record the status of the diamond composite sheet. There are currently two main methods: one is manual on-site observation and recording, and the other is camera photography and recording. The manual on-site observation and recording method requires the test personnel to be on-site all the time, which is time-consuming and labor-intensive; the camera photography and recording method requires the camera to be close to the test product, which is easy to damage the camera during the test or requires a protective cover to be added around the camera, resulting in unclear camera shooting and affecting the accuracy of the test. Summary of the invention

[0006] In order to be able to effectively perform impact tests on alloy materials and to accurately determine the state of the alloy materials after the impact tests, the present application provides a device for detecting the impact resistance of tool alloy materials.

[0007] The present application provides a tool alloy material impact resistance testing device that adopts the following technical solution:

[0008] A device for detecting the impact resistance of a tool alloy material, comprising:

[0009] Test bench, used to place the product to be tested;

[0010] A pendulum capable of rotating under gravity to impact the product to be tested on the test bench;

[0011] A pendulum driving assembly is arranged above the pendulum, and the pendulum driving assembly is used to pull the pendulum up to a preset height;

[0012] A camera protection tube is arranged above the test bench, wherein a camera assembly is vertically slidably connected in the camera protection tube, and the camera assembly can be moved into or out of the camera protection tube;

[0013] A transmission rope is connected between the camera assembly and the pendulum driving assembly. When the pendulum driving assembly drives the pendulum to rise, the camera assembly can synchronously descend to a preset height under the action of its own weight. When the pendulum descends, the camera assembly can be pulled up into the camera protection tube by the transmission rope.

[0014] By adopting the above technical solution, the tool alloy material impact resistance testing device can realize that when the pendulum rises, the camera assembly can automatically descend to a preset height for shooting. When the pendulum is released to impact the test sample, the camera assembly can automatically rise into the camera protection tube, avoiding damage to the camera assembly by impact, ensuring the safety of the test process and the accuracy of data collection. This solution allows the camera to be closer to the test sample when shooting, improves shooting accuracy, and improves detection accuracy. At the same time, the pendulum can rise and the camera can be lowered synchronously through the rope connection. The two can be carried out synchronously, improving the efficiency of impact testing and sample status recording.

[0015] Optionally, the pendulum drive assembly includes a first stand, a first winding wheel rotatably connected to the first stand, and a driving source for driving the first winding wheel to rotate forward and reverse, the first winding wheel is connected to a driving rope, the other end of the driving rope is connected to the pendulum, and the first stand is also rotatably connected to a second winding wheel coaxially fixed with the first winding wheel, one end of the transmission rope is connected to the second winding wheel, and the other end of the transmission rope is connected to the camera assembly, and the winding direction of the first winding wheel is opposite to the winding direction of the second winding wheel.

[0016] By adopting the above technical solution, compared with the traditional method of using separate electronic drives, the device has a more stable operation state and is less prone to damage, has a longer service life, and has a lower cost, and the camera is safer. In addition, the solution can also make the distance between the camera component and the test product the same value or different values, which is more flexible and more comparable in data.

[0017] Optionally, the camera protection tube includes a tube body and a protection plate, the camera assembly is slidably connected to the tube body, the protection plate is hinged to the bottom end of the tube body, the camera assembly can push open the protection plate and move to the outside of the tube body, a reset member is provided between the protection plate and the tube body, and the reset member can close the bottom end of the tube body when the camera assembly retracts into the tube body.

[0018] By adopting the above technical solution, during the impact test, the camera assembly can be placed in the tube body, and the tube body and the protective plate can be used to protect the camera assembly, thereby improving the safety of the camera assembly. In addition, when the camera assembly is not used for a long time, the tube body and the protective plate can isolate the camera assembly, reduce the impact of dust and water vapor on the camera assembly, and further extend the service life of the camera assembly.

[0019] Optionally, the camera assembly includes a counterweight rod and a camera installed at the bottom end of the counterweight rod, the outer wall of the counterweight rod is slidably connected to the inner wall of the tube body, the top of the counterweight rod is connected to one end of the transmission rope, and the counterweight rod is provided with a cable arrangement hole for the camera line to pass through.

[0020] By adopting the above technical solution, the counterweight rod ensures that the camera can be smoothly moved down to the preset height, so that the camera assembly can be smoothly raised and lowered and remain stable. The cable arrangement holes ensure the effective layout of the camera lines, avoiding malfunction of the camera assembly during movement due to improper line layout.

[0021] Optionally, a protective ring is provided at the bottom end of the counterweight rod and surrounds the camera, and the protective ring can abut against a protective plate.

[0022] By adopting the above technical solution, the protective plate can be pushed open by the protective ring, and the protective ring can also be used to protect the camera when the protective plate is closed, thereby enhancing the protection of the camera.

[0023] Optionally, the counterweight rod is made of a heat-conducting material, and a cooling circulation channel is provided on the inner wall of the tube body.

[0024] By adopting the above technical solution, when the detection device is in a hot climate for detection, the camera is not only affected by the ambient temperature, but also by the temperature of the test sample (the reason is that the test sample is impacted, the temperature rises, and the camera is close to the test sample for shooting). Therefore, through the setting of this solution, heat can be effectively dissipated to prevent the camera from working in a high temperature environment and causing image quality to deteriorate.

[0025] Optionally, the tube body and the protective plate are made of shielding material.

[0026] By adopting the above technical solution, during the impact test, the high-speed movement and sudden stop of the pendulum will generate a changing magnetic field, thereby causing electromagnetic interference, which will affect the operation of the camera component. The tube body and the protective plate are made of shielding materials, which can effectively prevent external electromagnetic interference from affecting the normal operation of the camera component and improve the accuracy of the test results.

[0027] Optionally, the rotating part of the pendulum is connected to an angle sensor, and the angle sensor is electrically connected to the pendulum driving assembly.

[0028] By adopting the above technical solution, the angle sensor can monitor the rotation angle of the pendulum in real time, and the difference in angle is reflected in the difference in the height of the pendulum, so that the height of the pendulum can be adjusted according to actual needs, thereby improving the accuracy and repeatability of the detection process.

[0029] Optionally, the detection device also includes a first base plate and a second base plate that are separated from each other, the test bench, the pendulum and the pendulum drive assembly are installed on the first base plate, the camera protection tube is installed on the second base plate, and the transmission rope passes through the first base plate and the second base plate.

[0030] By adopting the above technical solution, the pendulum will vibrate when it impacts. By separating the first bottom plate and the second bottom plate, the vibration generated by the impact of the pendulum can be isolated, reducing the impact of the vibration on the camera component. The rope solution can also effectively ensure the synchronous movement of the pendulum and the camera, and the vibration is not easily transmitted through the rope.

[0031] Optionally, the pendulum includes a pendulum rod and a hammer head, the pendulum rod can rotate under the action of gravity, the hammer head is installed on the pendulum rod and can move along the length direction of the pendulum rod, the test bench can move horizontally in the direction toward the rotation point of the pendulum, and the detection device also includes a second stand, the camera protection tube is installed on the second stand and the camera protection tube can move horizontally in the direction toward the rotation point of the pendulum.

[0032] By adopting the above technical solution, the hammer head can move along the length direction of the pendulum, so that the impact force can be adjusted as needed, thereby improving the flexibility of the detection device; the test bench can move horizontally in the direction toward the rotation point of the pendulum, and the force position of the product to be tested can be adjusted, thereby increasing the accuracy of the detection; the camera protection tube is installed on the second stand and can move horizontally in the direction toward the rotation point of the pendulum, thereby ensuring that the test process can be accurately captured at different test positions, thereby improving the detection effect.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] The device for testing the impact resistance of tool alloy materials realizes that when the pendulum rises, the camera assembly can automatically descend to a preset height for shooting. When the pendulum is released to impact the test sample, the camera assembly can automatically rise into the camera protection tube, avoiding damage to the camera assembly by impact, ensuring the safety of the test process and the accuracy of data collection. This solution allows the camera to be closer to the test sample when shooting, improves shooting accuracy, and improves detection accuracy. At the same time, the pendulum can rise and the camera can be lowered synchronously through a rope connection. The two can be carried out synchronously, improving the efficiency of impact testing and sample status recording.

[0035] Compared with the traditional method of using separate electronic drives, the device is more stable in operation, less prone to damage, longer in service life, lower in cost, and safer in camera. In addition, the solution can also make the distance between the camera component and the test product the same value or different values, which is more flexible and more comparable in data.

[0036] During the impact test, the camera assembly can be placed in the tube body, and the tube body and protective plate can be used to protect the camera assembly, thereby improving the safety of the camera assembly. In addition, when the camera assembly is not used for a long time, the tube body and protective plate can isolate the camera assembly, reduce the impact of dust and water vapor on the camera assembly, and further extend the service life of the camera assembly.

[0037] When the detection device is in a hot climate for testing, the camera is not only affected by the ambient temperature, but also by the temperature of the test sample (because the test sample is impacted, the temperature rises, and the camera is close to the test sample for shooting). Therefore, this solution can effectively dissipate heat and prevent the camera from working in a high temperature environment and causing image quality degradation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0039] Figure 2 It is a cross-sectional view of the overall structure of the embodiment of the present application.

[0040] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0041] Description of reference numerals:

[0042] 10. First base plate; 11. Second base plate; 20. Test bench; 30. Pendulum; 31. Pendulum rod; 32. Hammer head; 33. Articulated seat; 40. Pendulum drive assembly; 41. First stand; 42. First take-up wheel; 43. Second take-up wheel; 44. Drive source; 45. Drive rope; 50. Camera protection tube; 51. Second stand; 52. Tube body; 521. Cooling circulation channel; 53. Protective plate; 60. Transmission rope; 70. Camera assembly; 71. Counterweight rod; 711. Limiting part; 712. Wiring hole; 713. Protective ring; 72. Camera; 80. Angle sensor. DETAILED DESCRIPTION

[0043] The following will be combined with the attached Figure 1-3 , the technical solutions in the embodiments of the present invention are clearly and completely described. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0044] The inventor of the present application found that when testing the impact resistance of tool alloy materials, traditional testing equipment lacks an effective camera protection mechanism, and the camera assembly is easily damaged during the pendulum impact process. To this end, the present application mainly adopts the following scheme: a tool alloy material impact resistance testing device, including a test bench, a pendulum, a pendulum drive assembly, a camera protection tube and a transmission rope, wherein the test bench is used to place the product to be tested; the pendulum can rotate under the action of gravity to impact the product to be tested on the test bench; the pendulum drive assembly is arranged above the pendulum, and is used to pull the pendulum up to a preset height; the camera protection tube is arranged above the test bench, and the camera assembly is vertically slidably connected to the tube body, and the camera assembly can move in or out of the camera protection tube; the transmission rope is connected between the camera assembly and the pendulum drive assembly, when the pendulum drive assembly drives the pendulum to rise, the camera assembly can synchronously descend to a preset height under the action of its own weight, and when the pendulum descends, the camera assembly can be pulled up to the camera protection tube through the transmission rope, so as to achieve the effect of automatically moving the camera assembly to a safe position during the movement of the pendulum, and at the same time moving the camera assembly to the vicinity of the test bench for real-time detection when the pendulum descends. The present application is described in further detail below.

[0045] Reference Figure 1 and Figure 2 The embodiment of the present application provides a tool alloy material impact resistance testing device, comprising a first base plate 10, a test bench 20, a pendulum 30, a pendulum driving assembly 40, a second base plate 11, a camera protection tube 50 and a transmission rope 60, wherein the test bench 20, the pendulum 30 and the pendulum driving assembly 40 are installed on the first base plate 10, the test bench 20 is used to place a product to be tested, the pendulum 30 can rotate under the action of gravity to impact the product to be tested on the test bench 20, the pendulum driving assembly 40 pulls the pendulum 30 up to a preset height, and the camera protection tube 50 is installed on the second base plate 11, A camera assembly 70 is vertically slidably connected inside the camera protection tube 50. The camera assembly 70 can move in or out of the camera protection tube 50. A transmission rope 60 is connected between the camera assembly 70 and the pendulum driving assembly 40. When the pendulum 30 rises, the camera assembly 70 synchronously descends to a preset height. When the pendulum 30 descends, the transmission rope 60 can pull the camera assembly 70 up into the camera protection tube 50, thereby automatically moving the camera assembly 70 to a safe position during the movement of the pendulum 30. At the same time, real-time detection can be performed when the pendulum 30 descends, thereby ensuring the safety and detection efficiency of the camera assembly 70.

[0046] Specifically, the test bench 20 includes a support plate. The support plate can be made of high-strength steel or other materials, with a thickness of 2-5 mm, and is installed on the first base plate 10 to ensure sufficient rigidity and stability. A positioning hole is opened in the middle of the support plate, and the product to be tested can be placed in the positioning hole and fixed by fasteners such as bolts.

[0047] Reference Figure 2 The pendulum 30 includes a pendulum rod 31 and a hammer head 32. The pendulum rod 31 is rotatably connected to the first bottom plate 10 through a hinge seat 33. The pendulum rod 31 can rotate under the action of gravity. The hammer head 32 can be detachably connected to the pendulum rod 31 through fasteners such as bolts, and the hammer head 32 can also slide relative to the pendulum rod 31 to quickly adjust the position of the hammer head 32. In this embodiment, the hammer head 32 is a cylinder. When the hammer head 32 falls under the action of its own weight, the cylindrical surface of the cylinder impacts the product to be tested to achieve an impact test. In addition, a standard weight can be installed on the back of the hammer head 32 to quickly adjust the weight of the hammer head 32 to achieve different test requirements; in other embodiments, the shape of the hammer head 32 can also be selected according to requirements. In addition, the pendulum rod 31 can be made of materials such as cast iron or high-strength carbon steel, and the hammer head 32 is made of hard alloy material to ensure that the hammer head 32 has high impact toughness.

[0048] The pendulum driving assembly 40 includes a first stand 41, a first reel 42, a second reel 43 and a driving source 44. The first stand 41 is vertically mounted on the first base plate 10, the first reel 42, the second reel 43 and the driving source 44 are all located at the top of the first stand 41, the first reel 42 and the second reel 43 are coaxially fixed and rotatably connected to the first stand 41, the first reel 42 is connected to a driving rope 45, the other end of the driving rope 45 is connected to the pendulum 30, one end of a transmission rope 60 is connected to the second reel 43, the other end of the transmission rope 60 is connected to the camera assembly 70, the reeling direction of the first reel 42 is opposite to the reeling direction of the second reel 43, so that when the pendulum 30 rises, the camera assembly 70 falls, or when the pendulum 30 falls, the camera assembly 70 rises.

[0049] Optionally, the driving source 44 can be a combination of a motor and a reduction box, and the driving source 44 is used to drive the first winding wheel 42 and the second winding wheel 43 to rotate synchronously. For example, when the first winding wheel 42 is wound, the pendulum 30 is driven to rise by the driving rope 45, and the second winding wheel 43 rotates synchronously to unwind the transmission rope 60. At this time, the camera assembly 70 can descend under the action of its own weight, and the descending height can be adjusted according to demand. When it descends to a preset height, the camera assembly 70 is used to take pictures of the product to be tested, so that the state of the product to be tested during the impact test can be accurately recorded.

[0050] In this embodiment, when an impact test is required, the driving source 44 is used to quickly unwind the driving rope 45, and the pendulum 30 can naturally swing down under its own weight to impact the product to be tested. At the same time, the driving source 44 drives the second winding wheel 43 to rotate, and the second winding wheel 43 winds up the transmission rope 60, thereby pulling the camera assembly 70 up, so that the camera assembly 70 is located in the camera protection tube 50, which plays a role in protecting the camera assembly 70.

[0051] In another embodiment, when an impact test is required, the restriction of the driving source 44 on the first winding wheel 42 can also be cancelled, and the pendulum 30 can be used to swing down under its own weight to pull the first winding wheel 42 to rotate, thereby synchronously pulling the second winding wheel 43 to wind up, so as to achieve the rise of the camera assembly 70. This embodiment is usually used in situations where the gravity of the pendulum 30 is greatly different from the gravity of the camera assembly 70, so as to reduce the influence of pulling the camera assembly 70 on the swing of the pendulum 30, and ensure the accuracy of the test results.

[0052] In addition, the rotating part of the pendulum 30 and the hinge seat 33 is connected with an angle sensor 80, and the angle sensor 80 is electrically connected to the pendulum driving assembly 40. The angle sensor 80 can monitor the rotation angle of the pendulum 30 in real time, and the difference in angle is reflected in the difference in the height of the pendulum 30, so that the height of the pendulum 30 can be adjusted according to actual needs, thereby improving the accuracy and repeatability of the detection process.

[0053] Reference Figure 2 and Figure 3 , a second stand 51 is mounted on the second bottom plate 11, and the second stand 51 is hollow so that the transmission rope 60 can be transmitted in the second stand 51. The camera protection tube 50 includes a tube body 52 and a protection plate 53. The tube body 52 is mounted on the second stand 51, and the tube body 52 can move horizontally in the direction toward the rotation point of the pendulum 30. After the position of the tube body 52 is adjusted, the tube body 52 can be connected and fixed to the second stand 51 by fasteners such as bolts. Since the camera assembly 70 is connected to the transmission rope 60, when the position of the tube body 52 is adjusted, the position of the camera assembly 70 in the tube body 52 will change. At this time, the tube body 52 needs to retain a sufficient length so that the position of the tube body 52 can be adjusted.

[0054] The camera assembly 70 is vertically slidably connected to the tube body 52, and the protective plate 53 is hinged at the bottom of the tube body 52 to facilitate the removal of the camera assembly 70. A reset member (not shown in the figure) is provided between the protective plate 53 and the tube body 52, and the reset member can be a torsion spring, which is reset by the torsion spring to ensure that the tube body 52 can be sealed when the camera assembly 70 is recovered.

[0055] Reference Figure 2 and Figure 3The camera assembly 70 includes a counterweight rod 71 and a camera head 72. The top of the counterweight rod 71 is connected to the transmission rope 60. The counterweight rod 71 is slidably connected to the tube body 52. ​​The top of the counterweight rod 71 is provided with a limit portion 711. The limit portion 711 can abut against the inner wall of the bottom end of the tube body 52 to prevent the counterweight rod 71 from sliding out of the tube body 52. ​​The camera head 72 is fixed to the bottom end of the counterweight rod 71. The counterweight rod 71 is provided with a wiring hole 712 for the camera head 72 to pass through. The camera head 72 can be routed in the wiring hole 712 and the tube body 52, and can also be routed in the second stand 51 to protect the camera head 72.

[0056] In addition, a protective ring 713 is provided at the bottom end of the counterweight rod 71 to surround the camera 72, and the protective ring 713 can abut against the protective plate 53. When the camera 72 is lowered, the protective ring 713 can push the protective plate 53 to open, and when the protective plate 53 is closed, the protective ring 713 can also be used to protect the camera 72, thereby enhancing the protection of the camera 72.

[0057] In addition, when the detection device is in a hot climate for detection, or when it is necessary to simulate a high-temperature impact test scenario, the camera 72 is not only affected by the surrounding high temperature, but also by the temperature of the test sample (the reason is that the test sample is impacted, the temperature rises, and the camera 72 is close to the test sample for shooting). Therefore, the counterweight rod 71 of the present application is made of a heat-conducting material, and the heat-conducting material can be a heat-conducting material such as graphene. The inner wall of the tube body 52 is provided with a cooling circulation channel 521, which is a copper tube and is connected to an external cooling device. When the camera 72 retracts into the tube body 52, the camera 72 can be quickly cooled down by the counterweight rod 71 and the cooling circulation channel 521, thereby reducing the heating problem of the camera 72 and ensuring the image quality under long-term use.

[0058] Meanwhile, in the impact test, the high-speed movement and sudden stop of the pendulum 30 will generate a changing magnetic field, thereby causing electromagnetic interference, which will affect the operation of the camera assembly 70. Therefore, in a preferred embodiment, the tube body 52 and the protective plate 53 are made of shielding material, and the shielding material can be a composite material such as Ag / graphene, so that it has electromagnetic shielding function and good thermal conductivity. When the camera assembly 70 retracts into the tube body 52, it can effectively prevent external electromagnetic interference from affecting the normal operation of the camera assembly 70, thereby improving the accuracy of the detection result.

[0059] Reference Figure 1 and Figure 2In addition, the test bench 20 can move horizontally in the direction toward the rotation point of the pendulum 30, that is, the test bench 20 is slidably connected to the first bottom plate 10, and the test bench 20 can be locked in position by fasteners after sliding to adjust the position. Among them, the hammer head 32 can move along the length direction of the pendulum 31, so that the impact force can be adjusted as needed. The test bench 20 can move horizontally in the direction toward the rotation point of the pendulum 30, and the force position of the product to be tested can be adjusted. The camera protection tube 50 is installed on the second stand 51 and can move horizontally in the direction toward the rotation point of the pendulum 30, ensuring that the test process can be accurately captured at different test positions, thereby improving the detection effect.

[0060] Therefore, in addition to adjusting the impact work by increasing the weight of the hammer head 32, the impact position of the alloy material can also be adjusted in the above manner to make the impact position of the alloy material random, thereby simulating the actual use state of the alloy material. The detection device can effectively and accurately detect the impact resistance of the alloy material.

[0061] In addition, the first bottom plate 10 and the second bottom plate 11 are separated, which can isolate the vibration produced by the impact of the pendulum 30 and reduce the impact of the vibration on the camera assembly 70. The rope solution can also effectively ensure the synchronous movement of the pendulum 30 and the camera, and the vibration is not easily transmitted through the rope. In addition, corresponding guide wheels are arranged in the first stand 41, the first bottom plate 10, the second bottom plate 11 and the second stand 51 to effectively guide the transmission rope 60.

[0062] The implementation principle of this embodiment is: through the double winding wheel design of the pendulum driving assembly 40, it is ensured that the camera assembly 70 can automatically descend to a safe position when the pendulum 30 rises; when the pendulum 30 descends, it can quickly pull the camera assembly 70 up and enter the detection state. Such a design not only improves the safety of the camera assembly 70, but also makes the detection process more convenient and efficient, and is suitable for large-scale continuous testing.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for detecting the impact resistance of tool alloy materials, characterized in that: include: A test bench (20) for placing the product to be tested; a pendulum (30), wherein the pendulum (30) is capable of rotating under the action of gravity to impact the product to be tested on the test bench (20); A pendulum drive assembly (40) is disposed above the pendulum (30), and the pendulum drive assembly (40) is used to pull the pendulum (30) up to a preset height; A camera protection tube (50) is arranged above the test bench (20), a camera assembly (70) being vertically slidably connected inside the camera protection tube (50), and the camera assembly (70) is capable of moving into or out of the camera protection tube (50); a transmission rope (60) connected between the camera assembly (70) and the pendulum driving assembly (40); when the pendulum driving assembly (40) drives the pendulum (30) to rise, the camera assembly (70) can synchronously descend to a preset height under the action of its own weight; and when the pendulum (30) descends, the camera assembly (70) can be pulled up into the camera protection tube (50) by the transmission rope (60); The pendulum driving assembly (40) comprises a first stand (41), a first winding wheel (42) rotatably connected to the first stand (41), and a driving source (44) for driving the first winding wheel (42) to rotate forward and reversely, the first winding wheel (42) is connected to a driving rope (45), the other end of the driving rope (45) is connected to the pendulum (30), the first stand (41) is also rotatably connected to a second winding wheel (43) coaxially fixed with the first winding wheel (42), one end of the transmission rope (60) is connected to the second winding wheel (43), the other end of the transmission rope (60) is connected to the camera assembly (70), and the winding direction of the first winding wheel (42) is opposite to the winding direction of the second winding wheel (43).

2. The device for detecting the impact resistance of tool alloy material according to claim 1, characterized in that: The camera protection tube (50) comprises a tube body (52) and a protection plate (53); the camera assembly (70) is slidably connected inside the tube body (52); the protection plate (53) is hinged to the bottom end of the tube body (52); the camera assembly (70) can push open the protection plate (53) and move to the outside of the tube body (52); a reset member is provided between the protection plate (53) and the tube body (52); the reset member can close the bottom end of the tube body (52) when the camera assembly (70) is retracted into the tube body (52).

3. A tool alloy material impact resistance testing device according to claim 2, characterized in that: The camera assembly (70) comprises a counterweight rod (71) and a camera (72) mounted at the bottom end of the counterweight rod (71); the outer wall of the counterweight rod (71) is slidably connected to the inner wall of the tube body (52); the top end of the counterweight rod (71) is connected to one end of the transmission rope (60); and the counterweight rod (71) is provided with a wiring hole (712) for the camera (72) to pass through.

4. The device for detecting the impact resistance of tool alloy material according to claim 3, characterized in that: The bottom end of the counterweight rod (71) is provided with a protective ring (713) surrounding the camera (72), and the protective ring (713) can abut against the protective plate (53).

5. The device for detecting the impact resistance of tool alloy material according to claim 3, characterized in that: The counterweight rod (71) is made of a heat-conducting material, and the inner wall of the tube body (52) is provided with a cooling circulation channel (521).

6. The device for detecting the impact resistance of tool alloy material according to claim 2, characterized in that: The tube body (52) and the protection plate (53) are made of shielding material.

7. The device for detecting the impact resistance of a tool alloy material according to claim 1, characterized in that: The rotating part of the pendulum (30) is connected to an angle sensor (80), and the angle sensor (80) is electrically connected to the pendulum driving assembly (40).

8. The device for detecting the impact resistance of a tool alloy material according to claim 1, characterized in that: The detection device further comprises a first base plate (10) and a second base plate (11) which are separated from each other; the test bench (20), the pendulum (30) and the pendulum drive assembly (40) are mounted on the first base plate (10); the camera protection tube (50) is mounted on the second base plate (11); and the transmission rope (60) passes through the first base plate (10) and the second base plate (11).

9. The device for detecting the impact resistance of tool alloy material according to claim 1, characterized in that: The pendulum (30) comprises a pendulum rod (31) and a hammer head (32), wherein the pendulum rod (31) is capable of self-rotation under the action of gravity, and the hammer head (32) is mounted on the pendulum rod (31) and is capable of moving along the length direction of the pendulum rod (31). The test bench (20) is capable of horizontal movement in a direction toward a rotation point of the pendulum (30). The detection device further comprises a second stand (51), and the camera protection tube (50) is mounted on the second stand (51) and is capable of horizontal movement in a direction toward a rotation point of the pendulum (30).

Images