Digital display microscopic Vickers hardness tester with protection mechanism

Abstract

The invention discloses a digital display microscopic Vickers hardness tester with a protection mechanism, and relates to the technical field of hardness tests.The digital display microscopic Vickers hardness tester with the protection mechanism comprises a base, a detection assembly, a placement assembly and a protection assembly, the detection assembly is arranged on the upper surface of the base, the placement assembly is arranged on the upper surface of the base, and the placement assembly is used for storing workpieces; the top end of the base is sleeved with a protection assembly, the protection assembly is used for preventing internal workpiece chippings from splashing, and a temperature control assembly is arranged in the protection assembly.

Description

Technical Field

[0001] The invention relates to the technical field of hardness testers, in particular to a digital display micro-Vickers hardness tester with a protection mechanism. Background Art

[0002] The working principle of the micro Vickers hardness tester is mainly to use a diamond regular tetrahedron indenter to press into the surface of the sample with a specified test force, keep the test force for a period of time, then remove the test force, and then measure the diagonal length of the indentation to calculate the hardness value. Specifically, the Vickers hardness test uses a 136° regular rhombus diamond indenter to press into the surface of the tested object with a specified test force, keep the test force for a period of time, and then use a micrometer eyepiece to measure the diagonal length of the indentation on the surface of the specimen. Through these measured values, the Vickers hardness value can be calculated.

[0003] The existing micro-Vickers hardness tester is in use. Since most of the existing testing methods are Brinell hardness, Rockwell hardness and Vickers hardness tests, a steel ball of a certain diameter is used to apply pressure to the material surface, and then the hardness is evaluated by observing the indentation. When pressure is applied, waste chips will splash, which will pose a safety hazard to the workers. Summary of the invention

[0004] The object of the present invention is to provide a digital display micro Vickers hardness tester with a protection mechanism to solve the problems raised in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A digital display micro Vickers hardness tester with a protective mechanism comprises a base, a detection component, a placement component and a protection component. A detection component is provided on the upper surface of the base, a placement component is provided on the upper surface of the base, the placement component is used to store workpieces, a protection component is provided on the top end of the base, the protection component is used to prevent internal workpiece debris from splashing, and a temperature control component is provided inside the protection component.

[0007] Its digital display micro-Vickers hardness tester is in use. Since most of the existing detection methods are Brinell hardness, Rockwell hardness and Vickers hardness tests, a steel ball of a certain diameter is used to apply pressure to the material surface, and then the hardness is evaluated by observing the indentation. When pressure is applied, waste chips will splash, which will pose a safety hazard to the staff. Support feet are installed at the bottom of the base to increase the overall height. The support feet are located at the four corners. The detection component is used to detect the hardness of the workpiece, the placement component is used to store the workpiece and control the movement of the workpiece, and the protection component is used to place the workpiece in the device in a confined space, thereby providing the same detection environment. The protection component also prevents internal workpiece debris from splashing. The temperature control component is used to control the temperature in the bin so that the temperature value in the measurement environment is a constant value.

[0008] Furthermore, the protective component includes an arc-shaped plate, extension plates are provided at both ends of the arc-shaped plate, the arc-shaped plates are fixedly connected to each other, a top cover plate is provided at the top of the arc-shaped plate, the top cover plate is fixedly connected to the arc-shaped plate, a groove A is provided on the top cover plate, a bottom plate is provided at the bottom end of the arc-shaped plate, the arc-shaped plate is fixedly connected to the bottom plate, a chip storage groove is provided on the upper surface of the bottom plate, a groove B is provided on the bottom plate, two extension plates are provided, a clamping block is provided on the inner side of the two extension plates, and the clamping block is fixedly connected to the extension plate.

[0009] The groove A in the top cover plate cooperates with the connecting groove in the detection component, so that the protection component can be fixed on the device. The top cover plate serves as the top cover of the protection component. The groove B in the bottom plate cooperates with the upper surface of the base, and a chip storage groove is provided on the upper surface of the bottom plate. The chip storage groove is used to store waste chips generated during the working process, so as to facilitate subsequent recycling by the staff. Because the temperature control component is working, the waste chips will only accumulate on one side, and will not cause the upper surface of the base and the upper surface of the bottom plate to be covered with waste chips. The extension plate is used to improve the overall structure of the arc plate, and the clamping block is used to connect with the device, so as to realize the detachable protection component.

[0010] Furthermore, the temperature control component includes a horizontal plate and a water absorption block. The horizontal plate is located on one side of the extension plate, and the horizontal plate is fixedly connected to one side of the extension plate. A ventilation groove is provided in the horizontal plate, and one end of the ventilation groove connected to the external air is an air inlet, and the other end of the ventilation groove is an air outlet. The air outlet is connected to the internal space of the protective component, and fan blades for controlling airflow are provided in the air inlet and the air outlet. A vertical groove is also provided in the horizontal plate, and the space of the vertical groove is connected to the space of the vent. The water absorption block is located in the vertical groove, and capacitor blocks are provided at the upper and lower ends of the water absorption block, and the capacitor block is fixedly connected to the inner wall of the vertical groove, and the capacitor block is electrically connected to the water absorption block. A temperature controller is provided on the inner wall of the ventilation groove, and the temperature controller is located at one end closer to the air inlet than the horizontal groove.

[0011] The horizontal plate is used as the installation structure of the temperature control component and is located on the outside of the extension plate. The ventilation groove in the horizontal plate is used to allow air to pass through. The air inlet is located on one side of the horizontal plate for allowing external air to enter. The air outlet is located in the horizontal plate and is connected to the internal space of the protective component to allow the air in the ventilation groove to enter the protective component. The fan blades are electrically connected to the power supply to control air circulation. The vertical grooves are used to place water absorbent blocks. The water absorbent blocks are water absorbent materials used to absorb water molecules in the air in the ventilation grooves, thereby reducing the humidity of the air inside the protective component and preventing water molecules from penetrating and causing the material to absorb water and expand, and the hardness is reduced. It also achieves a constant humidity in the warehouse, thereby providing a better detection environment. The wind force generated by the fan blades not only serves to drain the air, but also Air can also be used to clean up the scraps on the workbench and reduce the accumulation of impurities on the workbench. Capacitor blocks are installed at the upper and lower ends of the vertical slot. The two capacitor blocks are electrically connected to the water absorbent block. When the water absorbent block does not contain water, the resistance value between the two capacitor blocks is a constant value. After the water absorbent block absorbs water, the resistance value between the two capacitor blocks will change, and its resistance value will become smaller. The working condition of the water absorbent block can be known based on the changed resistance value, and the humidity in the air in the ventilation slot can be measured. The thermostat is used to control the air temperature in the ventilation slot. The heat energy generated by the thermostat will not only radiate to the air in the ventilation slot, but also affect the water molecules in the air and reduce the attachment of water molecules. The heat energy also radiates heat to the water absorbent column to accelerate the evaporation of water molecules inside the water absorbent column.

[0012] Furthermore, a flap plate is provided on the outer wall of the horizontal plate, a rotating end of the flap plate is fixedly connected to the outer surface of the horizontal plate, and the flap plate is located at the vertical groove.

[0013] The staff can replace the water-absorbing blocks in the vertical trough by opening and closing the flap plate, thereby increasing the service life of the entire device.

[0014] Furthermore, the detection component includes a column and an upper cover, the column is located on the upper surface of the base, the column is fixedly connected to the base, clamping grooves are provided on both sides of the column, a connecting groove A is provided at the top of the clamping groove, and the connecting groove A is located at the top of the column, the upper cover is fixedly connected to the top of the column, connecting grooves B are provided on both sides of the upper cover, the space of the connecting groove B is connected to the space of the connecting groove A, and a detection end for hardness detection is provided at the bottom of the upper cover.

[0015] The column is perpendicular to the upper surface of the base, the snap-in groove cooperates with the snap-in block, the number of the snap-in grooves is the same as the number of the snap-in blocks, the connecting groove A cooperates with the edge end of the cover plate, and the upper cover serves as the extended end of the detection component. The connecting grooves B on both sides of the upper cover cooperate with the edge end of the cover plate, wherein the space of the connecting groove B is connected with the space of the connecting groove A, and the detection end includes a pressure head, a 10x objective lens and a 40x objective lens, which are used to detect the workpiece placed on the component.

[0016] Furthermore, an eyepiece is provided at one end of the upper cover.

[0017] The eyepiece is used for workers to directly observe the workpiece.

[0018] Furthermore, the placement component includes a driving push rod and a workbench. The driving push rod is located on the upper surface of the base. The fixed end of the driving push rod is fixedly connected to the workbench. The output end of the driving push rod is provided with a workbench, and the workbench is fixedly connected to the output end of the driving push rod.

[0019] The driving push rod is used as the power end to control the up and down movement of the workbench. The workbench drives the workpiece to move, which is convenient for the detection end to observe, so that it is convenient for the staff to place the workpiece on the workbench, and then the workbench is used to fix and place the workpiece.

[0020] Furthermore, an observation window is provided on the arc plate, a mounting block is provided on the top of the inner part of the arc plate, and an illumination lamp is provided on the mounting block.

[0021] Its observation window is rotatably connected to the surface of the curved plate, and the staff can observe the internal working status through the observation window. Then the mounting block is located at the top of the inner part of the curved plate. The mounting block is used to install the irradiation lamp, and the irradiation lamp is used to irradiate the workpiece on the workbench.

[0022] Furthermore, a temperature measuring component is provided at the bottom of the air outlet, and the temperature measuring component includes a vertical plate, a bimetallic strip is provided inside the vertical plate, a main contact block is provided at one end of the bimetallic strip, and a slave contact block is provided in the inner groove of the vertical plate.

[0023] The temperature measuring component is located at the bottom of the air outlet. The temperature measuring component is used to detect the air temperature inside the protective component. When the bimetallic strip is affected by temperature changes, the deformation of the active layer is greater than the deformation of the passive layer, so that the bimetallic strip as a whole will bend toward the passive layer, thereby changing the distance between the main contact block and the slave contact block.

[0024] Furthermore, a control panel is provided on the base.

[0025] A control system is arranged in the control panel for controlling the driving structure in the device.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. During use of the present invention, the water absorbent block is used to absorb water molecules in the air of the ventilation slot, thereby reducing the humidity of the air inside the protective component, preventing the penetration of water molecules that causes the material to absorb water and expand, and reducing the hardness, and also achieving a constant humidity in the bin, thereby providing a better detection environment.

[0028] 2. In the present invention, the wind force generated by the fan blades not only serves to guide the air, but also serves to clean up the waste on the workbench and reduce the accumulation of impurities on the workbench.

[0029] 3. In the present invention, the thermostat is used to control the air temperature in the ventilation groove. The heat energy generated by the thermostat will not only radiate to the air in the ventilation groove, but also affect the water molecules in the air, reduce the attachment of water molecules, and radiate heat energy to the water absorption column to accelerate the evaporation of water molecules inside the water absorption column.

[0030] 4. In the present invention, the protective component is used to place the workpiece in the device in a closed space, thereby providing the same detection environment. The protective component also prevents internal workpiece debris from splashing, wherein the protective component is connected to the device through a snap-in block, thereby achieving the detachable protective component. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the instrument of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the detection component of the instrument of the present invention;

[0033] Figure 3 It is a structural schematic diagram of the placement components of the apparatus of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the protection assembly of the present invention;

[0035] Figure 5 The present invention Figure 4 A structural schematic diagram of a cross-sectional view at a local point A;

[0036] Figure 6 It is a structural schematic diagram of the temperature control assembly of the instrument of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the installation block of the instrument of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the temperature measuring component of the instrument of the present invention.

[0039] In the figure: 1, base; 2, detection component; 21, column; 211, clamping groove; 212, connection groove A; 22, upper cover; 221, connection groove B; 24, eyepiece; 3, placement component; 31, driving push rod; 32, workbench; 4, protection component; 41, curved plate; 411, observation window; 42, extension plate; 43, top cover plate; 431, groove A; 45, bottom plate; 451, chip storage groove; 45 2. Groove B; 46. Snap-on block; 47. Mounting block; 5. Temperature control assembly; 51. Horizontal plate; 511. Ventilation groove; 512. Vertical groove; 5111. Air inlet; 5112. Air outlet; 52. Water absorption block; 53. Fan blade; 54. Capacitor block; 55. Temperature controller; 56. Flip plate; 6. Temperature measuring assembly; 61. Vertical plate; 62. Bimetallic strip; 63. Main contact block; 64. Slave contact block; 7. Control panel. DETAILED DESCRIPTION

[0040] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0041] Example: Figures 1 to 8 As shown, the present invention provides a technical solution of a digital display micro Vickers hardness tester with a protective mechanism, the digital display micro Vickers hardness tester with a protective mechanism, the hardness tester includes a base 1, a detection component 2, a placement component 3 and a protection component 4, the detection component 2 is provided on the upper surface of the base 1, the placement component 3 is provided on the upper surface of the base 1, the placement component 3 is used to store the workpiece, the top end of the base 1 is provided with a protection component 4, the protection component 4 is used to prevent internal workpiece debris from splashing, and a temperature control component 5 is provided inside the protection component 4.

[0042] Specifically, the digital display micro-Vickers hardness tester is in use. Since most of the existing detection methods are Brinell hardness, Rockwell hardness and Vickers hardness tests, a steel ball of a certain diameter is used to apply pressure to the surface of the material, and then the hardness is evaluated by observing the indentation. When pressure is applied, waste chips will splash, which will pose a safety hazard to the staff. Support feet for increasing the overall height are installed at the bottom of the base 1, and the support feet are located at the four corners. The detection component 2 is used to detect the hardness of the workpiece, the placement component 3 is used to store the workpiece and control the movement of the workpiece, and the protection component 4 is used to place the workpiece in the device in a closed space, thereby providing the same detection environment. The protection component 4 also prevents internal workpiece debris from splashing. The temperature control component 5 is used to control the temperature in the bin so that the temperature value in the measurement environment is a constant value.

[0043] like Figure 1 , Figure 4 As shown, the protective component 4 includes an arc plate 41, extension plates 42 are provided at both ends of the arc plate 41, the arc plate 41 is fixedly connected to the extension plates 42, a top cover plate 43 is provided at the top of the arc plate 41, the top cover plate 43 is fixedly connected to the arc plate 41, the top cover plate 43 is provided with a groove A431, a bottom plate 45 is provided at the bottom end of the arc plate 41, the arc plate 41 is fixedly connected to the bottom plate 45, a chip storage groove 451 is provided on the upper surface of the bottom plate 45, and a groove B452 is provided on the bottom plate 45. Two extension plates 42 are provided, and a clamping block 46 is provided on the inner side of the two extension plates 42, and the clamping block 46 is fixedly connected to the extension plate 42.

[0044] Specifically, the groove A431 in the top cover plate 43 cooperates with the connecting groove in the detection component 2, so that the protection component 4 can be fixed on the device. The top cover plate 43 serves as the top cover of the protection component 4. The groove B452 in the bottom plate 45 cooperates with the upper surface of the base 1, and a chip storage groove 451 is provided on the upper surface of the bottom plate 45. The chip storage groove 451 is used to store waste chips generated during the working process, so as to facilitate subsequent recycling by the staff. Because the temperature control component works, the waste chips will only accumulate to one side, and will not cause the upper surface of the base 1 and the upper surface of the bottom plate 45 to be full of waste chips. The extension plate 42 is used to improve the overall structure of the arc plate 41, and the clamping block 46 is used to connect with the device, so as to realize the detachability of the protection component 4.

[0045] like Figure 4 , Figure 6 As shown, the temperature control component 5 includes a horizontal plate 51 and a water absorption block 52. The horizontal plate 51 is located on one side of the extension plate 42. The horizontal plate 51 is fixedly connected to one side of the extension plate 42. A ventilation groove 511 is provided in the horizontal plate 51. One end of the ventilation groove 511 is located on one side of the horizontal plate 51 as an air inlet 5111. One end of the ventilation groove 511 connected to the external air is the air inlet 5111. The other end of the ventilation groove 511 is an air outlet 5112. The air outlet 5112 is connected to the internal space of the protective component 4. The air inlet 511 1 and the air outlet 5112 are both provided with fan blades 53 for controlling airflow, a vertical slot 512 is further provided in the horizontal plate 51, the space of the vertical slot 512 is communicated with the space of the vent hole, a water absorption block 52 is located in the vertical slot 512, capacitor blocks 54 are provided at the upper and lower ends of the water absorption block 52, the capacitor block 54 is fixedly connected to the inner wall of the vertical slot 512, the capacitor block 54 is electrically connected to the water absorption block 52, a temperature controller 55 is provided on the inner wall of the ventilation slot 511, and the temperature controller 55 is located at one end closer to the air inlet 5111 than the horizontal slot.

[0046] Specifically, the transverse plate 51 is used as the mounting structure of the temperature control component 5 and is located on the outside of the extension plate 42. The ventilation groove 511 in the transverse plate 51 is used to allow air to pass through. The air inlet 5111 is located on one side of the transverse plate 51 for allowing external air to enter. The air outlet 5112 is located in the transverse plate 51 and is connected to the internal space of the protective component 4 for allowing the air in the ventilation groove 511 to enter the protective component 4. The fan blade 53 is electrically connected to the power supply for controlling air circulation. The vertical groove 512 is used to place the water absorbent block 52. The water absorbent block 52 is a water absorbent material for absorbing water molecules in the air of the ventilation groove 511, thereby reducing the humidity of the air inside the protective component 4, preventing the penetration of water molecules and causing the material to absorb water and expand, and reducing the hardness, and also achieving a constant humidity in the warehouse, thereby providing a better detection environment. Then the wind force generated by the fan blade 53 is not only It serves to drain air and clean up waste on the workbench 32 to reduce the accumulation of impurities on the workbench 32. Capacitor blocks 54 are installed at the upper and lower ends of the vertical groove 512. The two capacitor blocks 54 are electrically connected to the water absorption block 52. When the water absorption block 52 does not contain water, the resistance value between the two capacitor blocks 54 is a constant value. After the water absorption block 52 absorbs water, the resistance value between the two capacitor blocks 54 will change, and its resistance value will become smaller. The working condition of the water absorption block 52 can be known based on the changed resistance value, and the humidity in the air in the ventilation groove 511 can be measured. The thermostat 55 is used to control the air temperature in the ventilation groove 511. The heat energy generated by the thermostat 55 will not only radiate to the air in the ventilation groove 511, but also affect the water molecules in the air, reduce the attachment of water molecules, and the heat energy also radiates heat energy to the water absorption column to accelerate the evaporation of water molecules inside the water absorption column.

[0047] like Figure 4 As shown, a flap plate 56 is provided on the outer wall of the horizontal plate 51 , and a rotating end of the flap plate 56 is fixedly connected to the outer surface of the horizontal plate 51 , and the flap plate 56 is located at the vertical groove 512 .

[0048] Specifically, the staff can replace the water absorbing block 52 in the vertical groove 512 by opening and closing the flip cover 56, thereby increasing the service life of the entire device.

[0049] like Figure 2 As shown, the detection component 2 includes a column 21 and an upper cover 22. The column 21 is located on the upper surface of the base 1. The column 21 is fixedly connected to the base 1. Clamping grooves 211 are provided on both sides of the column 21. A connecting groove A212 is provided at the top of the clamping groove 211. The connecting groove A212 is located at the top of the column 21. The upper cover 22 is fixedly connected to the top of the column 21. Connecting grooves B221 are provided on both sides of the upper cover 22. The space of the connecting groove B221 is connected to the space of the connecting groove A212. A detection end for hardness detection is provided at the bottom of the upper cover 22.

[0050] Specifically, the column 21 is perpendicular to the upper surface of the base 1, the snap-in groove 211 cooperates with the snap-in block 46, the number of the snap-in grooves 211 is the same as the number of the snap-in blocks 46, the connecting groove A212 cooperates with the edge end of the cover plate, and the upper cover 22 serves as an extended end of the detection component 2, and the connecting grooves B221 on both sides of the upper cover 22 cooperate with the edge end of the cover plate, wherein the space of the connecting groove B221 is connected to the space of the connecting groove A212, and the detection end includes a pressure head, a 10x objective lens and a 40x objective lens, which are used to detect the workpiece placed on the component 3.

[0051] like Figure 1 , Figure 2 As shown, an eyepiece 24 is provided at one end of the upper cover 22 .

[0052] Specifically, the eyepiece 24 is used for the worker to directly observe the workpiece.

[0053] like Figure 2 , Figure 3 As shown, the placement component 3 includes a driving push rod 31 and a workbench 32. The driving push rod 31 is located on the upper surface of the base 1. The fixed end of the driving push rod 31 is fixedly connected to the workbench 32. The output end of the driving push rod 31 is provided with the workbench 32. The workbench 32 is fixedly connected to the output end of the driving push rod 31.

[0054] Specifically, the driving push rod 31 is used as a power end to control the up and down movement of the workbench 32, and the workbench 32 drives the workpiece to move, which is convenient for the detection end to observe, thereby facilitating the staff to place the workpiece on the workbench 32, and then the workbench 32 is used to fix and place the workpiece.

[0055] like Figure 4 , Figure 5 As shown, an observation window 411 is provided on the arc plate 41 , a mounting block 47 is provided at the top end inside the arc plate 41 , and an illumination lamp is provided on the mounting block 47 .

[0056] Specifically, the observation window 411 is rotatably connected to the surface of the arc plate 41, and the staff can observe the internal working status through the observation window 411. Then the mounting block 47 is located at the top of the arc plate 41. The mounting block 47 is used to install the irradiation lamp, which is used to irradiate the workpiece on the workbench 32.

[0057] like Figure 8 As shown, a temperature measuring component 6 is provided at the bottom of the air outlet 5112 , and the temperature measuring component 6 includes a vertical plate 61 , a bimetallic strip 62 is provided inside the vertical plate 61 , a main contact block 63 is provided at one end of the bimetallic strip 62 , and a slave contact block 64 is provided in the inner groove of the vertical plate 61 .

[0058] Specifically, the temperature measuring component 6 is located at the bottom of the air outlet 5112. The temperature measuring component 6 is used to detect the air temperature in the protective component 4. When the bimetallic strip 62 is affected by temperature changes, the deformation of the active layer is greater than the deformation of the passive layer. Therefore, the bimetallic strip 62 as a whole will bend toward the passive layer, thereby changing the distance between the main contact block 63 and the slave contact block 64.

[0059] like Figure 1 As shown, a control panel 7 is provided on the base 1.

[0060] Specifically, a control system is provided in the control panel 7 for controlling the driving structure in the device.

[0061] Working principle: the staff first matches the protection component 4 with the clamping groove 211 through the clamping block 46 to combine the protection component 4 with the device, opens the observation window 411, places the work on the workbench 32, controls the driving push rod 31 to work through the control panel 7, closes the observation window 411, and then the temperature control component and the temperature measuring component 6 will start to work, wherein the fan blades 53 of the temperature control component start to rotate, and guide the air to move to the ventilation groove 511, at this time the temperature controller 55 will start to work, the temperature controller 55 will control the air temperature in the groove, so that the air temperature is controlled within a fixed value, the external air will pass through the temperature controller 55, then through the water absorption column, and finally discharged through the air outlet 5112, when the temperature reaches the set value, the detection end starts to work and detects the workpiece, during which the waste chips generated by the extrusion will be affected by the wind and finally roll into the chip storage groove 451 in the bottom plate 45, and the splashing waste chips will be blocked by the protection component 4 and fall into the chip storage groove 451.

[0062] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A digital micro-Vickers hardness tester with a protective mechanism, characterized in that: The hardness tester comprises a base (1), a detection component (2), a placement component (3) and a protection component (4); the detection component (2) is provided on the upper surface of the base (1); the placement component (3) is provided on the upper surface of the base (1); the placement component (3) is used to store workpieces; the top end of the base (1) is provided with a protection component (4); the protection component (4) is used to prevent internal workpiece debris from splashing; a temperature control component (5) is provided inside the protection component (4).

2. The digital display micro Vickers hardness tester with a protective mechanism according to claim 1, characterized in that: The protection component (4) comprises an arc-shaped plate (41), extension plates (42) are provided at both ends of the arc-shaped plate (41), the arc-shaped plate (41) is fixedly connected to the extension plates (42), a top cover plate (43) is provided at the top end of the arc-shaped plate (41), the top cover plate (43) is fixedly connected to the arc-shaped plate (41), a groove A (431) is provided on the top cover plate (43), a bottom plate (45) is provided at the bottom end of the arc-shaped plate (41), the arc-shaped plate (41) is fixedly connected to the bottom plate (45), a chip storage groove (451) is provided on the upper surface of the bottom plate (45), and a groove B (452) is provided on the bottom plate (45), and two extension plates (42) are provided with a clamping block (46) on the inner side of the two extension plates (42), and the clamping block (46) is fixedly connected to the extension plate (42).

3. The digital display micro Vickers hardness tester with a protective mechanism according to claim 2, characterized in that: The temperature control component (5) comprises a transverse plate (51) and a water absorption block (52); the transverse plate (51) is located on one side of the extension plate (42); the transverse plate (51) is fixedly connected to one side of the extension plate (42); a ventilation groove (511) is provided in the transverse plate (51); one end of the ventilation groove (511) connected to the outside air is an air inlet (5111); the other end of the ventilation groove (511) is an air outlet (5112); the air outlet (5112) is connected to the internal space of the protection component (4); and a water absorption block (52) is provided in both the air inlet (5111) and the air outlet (5112). The fan blade (53) controls the airflow. A vertical groove (512) is also provided in the horizontal plate (51). The space of the vertical groove (512) is connected to the space of the vent hole. The water absorption block (52) is located in the vertical groove (512). Capacitor blocks (54) are provided at the upper and lower ends of the water absorption block (52). The capacitor block (54) is fixedly connected to the inner wall of the vertical groove (512). The capacitor block (54) is electrically connected to the water absorption block (52). A temperature controller (55) is provided on the inner wall of the vent groove (511). The temperature controller (55) is located at one end closer to the air inlet (5111) than the horizontal groove.

4. The digital display micro Vickers hardness tester with a protective mechanism according to claim 3, characterized in that: The outer wall of the transverse plate (51) is provided with a flap plate (56), the rotating end of the flap plate (56) is fixedly connected to the outer surface of the transverse plate (51), and the flap plate (56) is located at the vertical groove (512).

5. The digital display micro Vickers hardness tester with a protective mechanism according to claim 4, characterized in that: The detection assembly (2) comprises a column (21) and an upper cover (22); the column (21) is located on the upper surface of the base (1); the column (21) is fixedly connected to the base (1); two sides of the column (21) are provided with snap-fit ​​grooves (211); the top of the snap-fit ​​groove (211) is provided with a connecting groove A (212); the connecting groove A (212) is located at the top of the column (21); the upper cover (22) is fixedly connected to the top of the column (21); two sides of the upper cover (22) are provided with connecting grooves B (221); the space of the connecting groove B (221) is connected to the space of the connecting groove A (212); and the bottom of the upper cover (22) is provided with a detection end for hardness detection.

6. The digital display micro Vickers hardness tester with a protective mechanism according to claim 5, characterized in that: An eyepiece (24) is provided at one end of the upper cover (22).

7. The digital display micro Vickers hardness tester with a protective mechanism according to claim 6, characterized in that: The placement assembly (3) comprises a driving push rod (31) and a workbench (32); the driving push rod (31) is located on the upper surface of the base (1); the fixed end of the driving push rod (31) is fixedly connected to the workbench (32); the output end of the driving push rod (31) is provided with the workbench (32); and the workbench (32) is fixedly connected to the output end of the driving push rod (31).

8. The digital display micro Vickers hardness tester with a protective mechanism according to claim 7, characterized in that: An observation window (411) is provided on the arc-shaped plate (41), a mounting block (47) is provided on the top end of the inner part of the arc-shaped plate (41), and an irradiation lamp is provided on the mounting block (47).

9. The digital display micro Vickers hardness tester with a protective mechanism according to claim 8, characterized in that: A temperature measuring component (6) is provided at the bottom end of the air outlet (5112), and the temperature measuring component (6) comprises a vertical plate (61), a bimetallic strip (62) is provided inside the vertical plate (61), a main contact block (63) is provided at one end of the bimetallic strip (62), and a slave contact block (64) is provided in the inner groove of the vertical plate (61).

10. The digital display micro Vickers hardness tester with a protective mechanism according to claim 9, characterized in that: A control panel (7) is provided on the base (1).

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