A building material hardness detection device

Abstract

The utility model provides a kind of building material hardness detection equipment, it is related to hardness detection equipment technical field, the utility model includes, rack is used to bear equipment whole, the side of the rack is also provided with polishing device, the polishing device includes driving motor and slot block, the output end of driving motor is equipped with grinding wheel by shaft coupling, the bottom end of slot block is fixedly connected with screw rod, the outer surface of screw rod is connected with screw ring, the utility model is equipped with polishing device, when using hardness detection equipment to detect the hardness of building material sample, if the surface of sample needs to be polished, sample is placed in the surface of slot block on the side of rack, so that the one end of slot block is slid in the inside of sliding slot and adjusted position is self-adapting the thickness of sample, so that grinding wheel is contacted with the surface of sample, the surface of sample can be polished by operating driving motor to control grinding wheel rotation, without transferring sample, improve the convenience and efficiency when using hardness detection equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of hardness testing equipment, and in particular to a hardness testing equipment for building materials. Background Technology

[0002] Building materials include metal materials and stone materials. Before use, metal materials are usually tested for hardness using hardness testing equipment. A Vickers hardness tester is an instrument for measuring the hardness of materials. It calculates the hardness value by measuring the length of the indentation diagonal. It can measure materials from very soft to very hard, with hardness values ​​ranging from 1 HV to 3000 HV.

[0003] When using a Vickers hardness tester to test the hardness of building materials, the material sample is placed on the sample stage of the testing equipment. The position and angle of the sample stage are adjusted, and a test load is applied to the sample through a loading device. At this time, the optical system displays the indentation image on the terminal for easy viewing, and the diagonal length of the indentation is measured through a measuring microscope. Then, the hardness value of the sample is calculated according to the formula. However, if the image displayed during the operation is blurry, the sample needs to be removed, the surface needs to be polished, and the measurement needs to be repeated. Since the testing equipment itself does not have the function of polishing the sample surface, the sample needs to be transferred to a polishing device for polishing. This results in low efficiency when using the testing equipment to measure the hardness of building materials, and the testing equipment has certain limitations in use. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the testing equipment itself does not have the function of grinding the sample surface, and the sample needs to be transferred to a grinding equipment for grinding, which leads to low efficiency when using the testing equipment to measure the hardness of building materials and certain limitations in the use of the testing equipment. Therefore, this invention proposes a building material hardness testing equipment.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a building material hardness testing device, comprising: The frame is used to support the entire equipment. The outer surface of the frame is equipped with a display screen and a touch knob. One side of the frame is rotatably equipped with a change handwheel that can adjust the testing force of the equipment. A lifting column is installed on one side of the bottom end of the frame. A sample stage is provided at the top of the lifting column, and a lifting screw is provided on the outer surface of the lifting column to adjust the height of the sample stage. The turret is mounted on one side of the top of the frame. The frame is equipped with a servo motor that can drive the turret to rotate. The bottom of the turret is equipped with a measuring microscope, a pressure head, and an optical camera. An eyepiece is mounted on one side of the top of the frame. The eyepiece allows observation of the indentation on the sample surface at the measuring microscope. A polishing device is also provided on one side of the frame to polish the sample surface.

[0006] The effects achieved by the above components are as follows: When using the testing equipment, the entire equipment is connected to the computer terminal via a connecting cable. First, turn the change handwheel on one side of the frame to select the appropriate test force. Place the sample on the surface of the sample stage and push the lifting screw on the outer surface of the lifting column to control the extension and retraction of the lifting column to adjust the height of the sample stage. Observe the sample focusing in the measuring microscope through the eyepiece and clearly image it in the eyepiece. Then, start the equipment by controlling the control button on one side of the frame. The servo motor inside the frame controls the rotation of the turret, causing the indenter to move on the surface of the sample to generate an indentation. After a period of time, the servo motor drives the turret to rotate automatically. The optical camera transmits the image of the sample surface to the terminal device. Observe whether the image is blurry through the terminal device. Then, measure the diagonal length of the indentation through the measuring microscope and automatically calculate the data through the terminal device. Observe the data to complete the measurement.

[0007] Preferably, the grinding device includes a drive motor and a groove block. The drive motor is installed inside the frame, and a grinding wheel is mounted on the output end of the drive motor via a coupling. The grinding wheel is located on the outside of the frame. A groove is formed on one side of the outer surface of the frame. One end of the groove block slides on the inner wall of the groove. A recess is provided at the top of the groove block. Two springs are provided at the bottom of the groove block. A rectangular plate is fixedly connected to one side of the frame. The upper and lower ends of the springs are fixedly connected to the bottom of the groove block and the top of the rectangular plate, respectively. A screw is fixedly connected to the bottom of the groove block. The outer surface of the screw slides on the inner wall of the rectangular plate. A threaded ring is threaded onto the outer surface of the screw.

[0008] The effect achieved by the above components is as follows: When grinding the surface of the sample during the use of the hardness testing equipment, the sample is placed inside the groove at the top of the slot block and the top of the sample is in contact with the surface of the grinding wheel. The pressure of the grinding wheel will push the sample and the slot block, causing one end of the slot block to slide downward on the inner wall of the groove and compress the spring, so that the top of the sample can be attached to the surface of the grinding wheel. Then, the threaded ring on the outer surface of the screw is rotated, causing the threaded ring to move downward on the outer surface of the screw and the bottom end of the threaded ring to be attached to the outer surface of the rectangular plate, thus restricting the position of the slot block and preventing the slot block from continuing to descend. Then, the drive motor is controlled to drive the grinding wheel to rotate, and the surface of the sample is ground by the grinding wheel. After a period of time, the operation of the drive motor is stopped, and the threaded ring is rotated to move upward on the outer surface of the screw to release the position restriction of the slot block. Then, the sample is taken out from the inside of the slot block and measured again.

[0009] Preferably, a gasket is provided at the bottom end of the threaded ring, and the gasket is a rubber product.

[0010] The effect achieved by the above components is that by setting a rubber gasket, the threaded ring moves downward and presses the gasket against the outer surface of the rectangular plate, making the position of the screw more stable and less prone to shaking.

[0011] Preferably, a positioning block is fixedly connected to one side of the slot block, and one side of the positioning block slides on the outer surface of the frame.

[0012] The effect achieved by the above components is that when the slot block moves, one side of the positioning block will slide on the outer surface of the frame. The positioning block can further limit the angle between the slot block and the frame, and prevent the slot block from tilting.

[0013] Preferably, the polishing device further includes a cleaning component that can clean up the debris generated during the polishing process.

[0014] Preferably, the cleaning assembly includes a rotating shaft, one end of which is rotatably connected to one side of the frame. Several fan blades and a second sprocket are fixedly connected to the outer surface of the rotating shaft. A first sprocket is fixedly connected to one side of the grinding wheel. Chains are sleeved on the outer surfaces of the first and second sprockets.

[0015] The effect achieved by the above components is as follows: when using the grinding device, the first sprocket will be driven to rotate by the drive motor to drive the grinding wheel to rotate. The first sprocket will drive the chain and the second sprocket to rotate, so that the rotating shaft can rotate synchronously with the rotation of the grinding wheel. The fan blades on the outer surface of the rotating shaft will generate wind to blow the sample material debris generated during the grinding process away from the sample surface, thereby improving the practicality of the grinding device.

[0016] Preferably, the outer surface of the groove block is provided with a plurality of through grooves, which are linearly distributed inside the groove block.

[0017] The effect achieved by the above components is that after the sample placed inside the groove is taken out, the operation of the drive motor to rotate controls the fan blades to blow out the debris inside the groove through the through slot.

[0018] Preferably, the inner wall of the groove block is fixedly connected with a plurality of tapered rods, and the top two edges of the tapered rods are inclined surfaces.

[0019] The effect achieved by the above-mentioned component is that a tapered rod is located between two through slots, and by setting the tapered rod, the debris inside the slot block is less likely to stay at the top of the inner wall of the through slot.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by setting up a grinding device, when using a hardness testing device to test the hardness of building material samples, if it is necessary to grind the surface of the sample, the sample is placed on the surface of a groove block on one side of the frame, and one end of the groove block slides inside the groove to adjust its position to adapt to the thickness of the sample, so that the grinding wheel contacts the surface of the sample. The surface of the sample can be ground by controlling the rotation of the grinding wheel through the operation of the drive motor, without the need to transfer the sample, thus improving the convenience and efficiency of using the hardness testing device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the frame of this utility model; Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the grinding wheel part of this utility model; Figure 4 This utility model Figure 3 A magnified three-dimensional structural diagram of point A; Figure 5 This is a three-dimensional structural diagram of the groove block of this utility model; Figure 6 This is a flowchart illustrating the workflow of the hardness testing equipment in this utility model.

[0022] Legend: 1. Frame; 2. Grinding device; 21. Drive motor; 22. Grinding wheel; 23. Slide groove; 24. Groove block; 25. Spring; 26. Rectangular plate; 27. Screw; 28. Threaded ring; 29. ​​Cleaning assembly; 291. First sprocket; 292. Chain; 293. Shaft; 294. Second sprocket; 295. Fan blade; 296. Through groove; 297. Tapered rod; 210. Shim; 211. Positioning block; 3. Lifting column; 4. Sample stage; 5. Turret; 51. Measuring microscope; 52. Indenter; 53. Optical camera; 6. Eyepiece; 7. Changing handwheel. Detailed Implementation

[0023] Example 1, as Figure 1 , Figure 2 and Figure 6As shown, a building material hardness testing device includes a frame 1, which supports the entire device. The outer surface of the frame 1 is equipped with a display screen and a touch control knob. A handwheel 7, which allows adjustment of the testing force, is rotatably mounted on one side of the frame 1. A lifting column 3 is installed at the bottom of the frame 1, and a sample stage 4 is mounted at the top of the lifting column 3. A lifting screw 27, which allows adjustment of the height of the sample stage 4, is mounted on the outer surface of the lifting column 3. A turret 5 is installed at the top of the frame 1, and a servo motor that drives the turret 5 to rotate is installed inside the frame 1. A measuring microscope 51, an indenter 52, and an optical camera 53 are located at the bottom of the turret 5. An eyepiece 6 is installed at the top of the frame 1, through which the indentation on the sample surface at the measuring microscope 51 can be observed. A polishing device 2, which can polish the sample surface, is also provided on one side of the frame 1. When using the testing device, the entire device is connected to an electrical outlet via a connecting cable. Connecting to the terminal device, first turn the change handwheel 7 on one side of the frame 1 to select the appropriate test force, place the sample on the surface of the sample stage 4, push the lifting screw 27 on the outer surface of the lifting column 3 to rotate and control the extension and retraction of the lifting column 3 to adjust the height of the sample stage 4, observe the sample focusing in the measuring microscope 51 through the eyepiece 6, and clearly image it in the eyepiece 6, then control the device to start through the control button on one side of the frame 1, control the turret 5 to rotate through the servo motor inside the frame 1, so that the indenter 52 moves on the surface of the sample to produce an indentation, after a period of time, the servo motor drives the turret 5 to rotate automatically, the optical camera 53 transmits the image of the sample surface to the terminal device, observe whether the image is blurry through the terminal device, then measure the diagonal length of the indentation through the measuring microscope 51 and automatically calculate the data through the terminal device, observe the data to complete the measurement. The hardness testing device in this utility model is the Taishuo HVS-1000 Vickers hardness tester.

[0024] Reference Figure 1-5As shown in this embodiment: the grinding device 2 includes a drive motor 21 and a groove block 24. The drive motor 21 is installed inside the frame 1 (the drive motor 21 in this utility model is a BL5020 DC brushless motor). The output end of the drive motor 21 is equipped with a grinding wheel 22 via a coupling. The grinding wheel 22 is located on the outside of the frame 1. A groove 23 is provided on one side of the outer surface of the frame 1. One end of the groove block 24 slides on the inner wall of the groove 23. A groove is provided at the top of the groove block 24. Two springs 25 are provided at the bottom of the groove block 24. A rectangular plate 26 is fixedly connected to one side of the frame 1. The upper and lower ends of the springs 25 are respectively... The bottom end of the groove block 24 and the top end of the rectangular plate 26 are fixedly connected. A screw 27 is fixedly connected to the bottom end of the groove block 24. The outer surface of the screw 27 slides on the inner wall of the rectangular plate 26. A threaded ring 28 is threaded onto the outer surface of the screw 27. When the surface of the sample needs to be polished during the use of the hardness testing equipment, the sample is placed inside the groove at the top of the groove block 24 and the top end of the sample is in contact with the surface of the grinding wheel 22. The pressure of the grinding wheel 22 will push the sample and the groove block 24, causing one end of the groove block 24 to slide downward on the inner wall of the slide groove 23 and compress the spring 25, so that the top end of the sample can fit against the grinding wheel. The surface of the screw 22 is then rotated, followed by the rotation of the threaded ring 28 on the outer surface of the screw 27 (this can be done manually or via a belt drive using an external motor). This causes the threaded ring 28 to move downwards on the outer surface of the screw 27, bringing its bottom end into contact with the outer surface of the rectangular plate 26. This restricts the position of the groove block 24, preventing it from descending further. The drive motor 21 is then controlled to rotate the grinding wheel 22, which grinds the surface of the sample. After a period of time, the drive motor 21 is stopped, and the threaded ring 28 is rotated to move upwards on the outer surface of the screw 27. In addition to restricting the position of the groove block 24, the sample is taken out from the inside of the groove block 24 and remeasured. When the hardness of the building material sample is tested by the hardness testing equipment using the grinding device 2, if the surface of the sample needs to be ground, the sample is placed on the surface of the groove block 24 on one side of the frame 1, and one end of the groove block 24 slides inside the slide groove 23 to adjust its position to adapt to the thickness of the sample, so that the grinding wheel 22 contacts the surface of the sample. The surface of the sample can be ground by controlling the rotation of the grinding wheel 22 through the operation of the drive motor 21. There is no need to transfer the sample, which improves the convenience and efficiency of using the hardness testing equipment.

[0025] Reference Figure 2-5As shown in this embodiment: a gasket 210 is provided at the bottom end of the threaded ring 28. The gasket 210 is made of rubber. By providing the rubber gasket 210, the threaded ring 28 moves downward and presses the gasket 210 against the outer surface of the rectangular plate 26, making the position of the screw 27 more stable and less prone to shaking. A positioning block 211 is fixedly connected to one side of the groove block 24. One side of the positioning block 211 slides on the outer surface of the frame 1. When the groove block 24 moves, one side of the positioning block 211 will slide on the outer surface of the frame 1. The positioning block 211 can further limit the angle between the groove block 24 and the frame 1, preventing the angle of the groove block 24 from tilting.

[0026] Reference Figure 2-5 As shown in this embodiment: the grinding device 2 further includes a cleaning component 29 for cleaning up debris generated during the grinding process. The cleaning component 29 includes a rotating shaft 293, one end of which is rotatably connected to one side of the frame 1. Several fan blades 295 and a second sprocket 294 are fixedly connected to the outer surface of the rotating shaft 293. A first sprocket 291 is fixedly connected to one side of the grinding wheel 22. A chain 292 is sleeved on the outer surface of the first sprocket 291 and the second sprocket 294. When the grinding device 2 is used, the first sprocket 291 is driven to rotate by the drive motor 21, which in turn drives the chain 292 and the second sprocket 294 to rotate, so that the rotating shaft 293 can rotate synchronously with the rotation of the grinding wheel 22. The fan blades 295 on the outer surface of the rotating shaft 293 generate wind to blow the sample material debris generated during the grinding process away from the sample surface, improving the practicality of the grinding device 2. Several through slots 296 are opened on the outer surface of the slot block 24. The through slots 296 are linearly distributed inside the slot block 24. After the sample placed inside the slot block 24 is taken out, the drive motor 21 is operated to rotate and control the fan blades 295 to rotate, which can blow the debris inside the slot block 24 out through the through slots 296. Several tapered rods 297 are fixedly connected to the inner wall of the slot block 24. The top two edges of the tapered rods 297 are inclined. One tapered rod 297 is located between two through slots 296. By setting the tapered rods 297, the debris inside the slot block 24 is less likely to stay at the top of the inner wall of the through slot 296.

[0027] Working Principle: When using the testing equipment, connect the entire equipment to the computer terminal via a connecting cable. First, turn the change handwheel 7 on one side of the frame 1 to select the appropriate test force. Place the sample on the surface of the sample stage 4. Push the lifting screw 27 on the outer surface of the lifting column 3 to rotate and control the extension and retraction of the lifting column 3 to adjust the height of the sample stage 4. Observe the sample focusing in the measuring microscope 51 through the eyepiece 6 and get a clear image in the eyepiece 6. Then, start the equipment by controlling the control button on one side of the frame 1. The servo motor inside the frame 1 controls the rotation of the turret 5, causing the indenter 52 to move on the surface of the sample to create an indentation. After a period of time, the servo motor drives the turret 5 to rotate automatically. The optical camera 53 transmits the image of the sample surface to the terminal equipment. Observe whether the image is blurry through the terminal equipment. Then, measure the diagonal length of the indentation through the measuring microscope 51 and automatically calculate the data through the terminal equipment. Observe the data to complete the measurement. If the image of the indentation on the sample surface is blurry, and the sample surface needs to be polished, place the sample in the groove at the top of the groove block 24 and make the top of the sample contact the surface of the grinding wheel 22. The pressure of the grinding wheel 22 will... The sample and groove block 24 are pushed, causing one end of the groove block 24 to slide downwards on the inner wall of the slide groove 23 and compress the spring 25, so that the top of the sample can be attached to the surface of the grinding wheel 22. Then, the threaded ring 28 on the outer surface of the screw 27 is rotated, causing the threaded ring 28 to move downwards on the outer surface of the screw 27 and attach its bottom end to the outer surface of the rectangular plate 26, thus restricting the position of the groove block 24 and preventing it from descending further. Then, the drive motor 21 is controlled to operate, driving the grinding wheel 22 to rotate, and the surface of the sample is polished by the grinding wheel 22. During the rotation, the first sprocket 291 will rotate, which in turn drives the chain 292 and the second sprocket 294 to rotate, so that the rotating shaft 293 can rotate synchronously with the rotation of the grinding wheel 22. The fan blades 295 on the outer surface of the rotating shaft 293 generate wind to blow the sample material debris generated during the grinding process away from the surface of the sample. After a period of time, the operation of the drive motor 21 is stopped, and the threaded ring 28 is rotated to move the threaded ring 28 upward on the outer surface of the screw 27 to release the position restriction on the groove block 24. Then the sample is taken out from the inside of the groove block 24 and measured again.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A hardness testing device for building materials, characterized in that: include: The frame (1) is used to support the entire equipment. The outer surface of the frame (1) is provided with a display screen and a touch knob. A change handwheel (7) is rotatably provided on one side of the frame (1) to adjust the test force of the equipment. Lifting column (3) is installed on one side of the bottom end of the frame (1). A sample platform (4) is provided at the top of the lifting column (3). A lifting screw (27) is provided on the outer surface of the lifting column (3) to adjust the height of the sample platform (4). A turret (5) is installed on one side of the top of the frame (1). The frame (1) is equipped with a servo motor that can drive the turret (5) to rotate. The bottom of the turret (5) is equipped with a measuring microscope (51), a pressure head (52) and an optical camera (53). Eyepiece (6) is installed on one side of the top of the frame (1). The indentation on the sample surface at the measuring microscope (51) can be observed through the eyepiece (6). A polishing device (2) for polishing the sample surface is also provided on one side of the frame (1).

2. The building material hardness testing equipment according to claim 1, characterized in that: The grinding device (2) includes a drive motor (21) and a groove block (24). The drive motor (21) is installed inside the frame (1). The output end of the drive motor (21) is equipped with a grinding wheel (22) through a coupling. The grinding wheel (22) is located on the outside of the frame (1). A sliding groove (23) is provided on one side of the outer surface of the frame (1). One end of the groove block (24) slides on the inner wall of the sliding groove (23). A groove is provided at the top of the groove block (24). Two springs (25) are provided at the bottom of the groove block (24). A rectangular plate (26) is fixedly connected to one side of the frame (1). The upper and lower ends of the springs (25) are fixedly connected to the bottom of the groove block (24) and the top of the rectangular plate (26) respectively. A screw (27) is fixedly connected to the bottom of the groove block (24). The outer surface of the screw (27) slides on the inner wall of the rectangular plate (26). A threaded ring (28) is threadedly connected to the outer surface of the screw (27).

3. The building material hardness testing equipment according to claim 2, characterized in that: The bottom end of the threaded ring (28) is provided with a gasket (210), which is a rubber product.

4. The building material hardness testing equipment according to claim 3, characterized in that: A positioning block (211) is fixedly connected to one side of the slot block (24), and one side of the positioning block (211) slides on the outer surface of the frame (1).

5. The building material hardness testing equipment according to claim 4, characterized in that: The polishing device (2) also includes a cleaning component (29) that can clean up the debris generated during the polishing process.

6. The building material hardness testing equipment according to claim 5, characterized in that: The cleaning assembly (29) includes a rotating shaft (293), one end of which is rotatably connected to one side of the frame (1). Several fan blades (295) and a second sprocket (294) are fixedly connected to the outer surface of the rotating shaft (293). A first sprocket (291) is fixedly connected to one side of the grinding wheel (22). A chain (292) is sleeved on the outer surface of the first sprocket (291) and the second sprocket (294).

7. The building material hardness testing equipment according to claim 6, characterized in that: The outer surface of the slot block (24) is provided with several through slots (296), which are linearly distributed inside the slot block (24).

8. The building material hardness testing equipment according to claim 7, characterized in that: The inner wall of the groove block (24) is fixedly connected with several tapered rods (297), and the top two sides of the tapered rods (297) are inclined surfaces.

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