A device and method for detecting the hardness of a diamond

Abstract

This invention relates to the field of rock testing technology, and discloses an apparatus and method for testing the hardness of eclogite. The apparatus includes a base, a bracket mounted on the base, and eclogite placed on the bracket. A scratching component and a testing component are respectively mounted on the bracket. This invention features a follow-up synchronous cleaning mechanism that mechanically moves in sync with the squeezing and scratching actions of the hardness scratching head, completing real-time synchronous cleaning during the ore scratching process. This eliminates the need for subsequent manual cleaning, simplifies the testing process, and improves the overall automation level. Furthermore, by synchronously changing the airflow direction and using multi-angle airflow coverage, it comprehensively removes fine ore debris and dust generated during the scratching process, reducing dust obscuring and filling of scratch patterns. Overall, it better ensures the integrity and clarity of the scratch patterns, which is beneficial for further improving the accuracy and stability of the Mohs hardness test for eclogite.

Description

Technical Field

[0001] This invention belongs to the field of rock testing technology, specifically, it relates to an apparatus and method for testing the hardness of eclogite. Background Technology

[0002] Eclogite is an important rock sample for geological research, geotechnical engineering and building materials. Its hardness is a core indicator for determining the mechanical properties of rocks, classifying lithology, and evaluating the value of engineering applications. Currently, the Mohs hardness scratch test is commonly used in the industry to classify the hardness of eclogite.

[0003] When using the Mohs hardness scratch test method, staff must use additional tools such as brushes and air blowing devices to clean the test area separately to ensure that the scratch patterns are clearly visible for visual equipment or manual judgment of the scratch formation. However, manual cleaning is prone to problems such as incomplete cleaning, uneven cleaning force, and deformation of the patterns caused by touching the scratch. This can easily lead to blurred subsequent image acquisition and scratch recognition errors, ultimately affecting the accuracy and stability of the Mohs hardness rating determination.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows: An apparatus for detecting the hardness of eclogite includes a base, a bracket mounted on the base, and eclogite placed on the bracket. A scratching component and a detection component are respectively mounted on the bracket. The scratching component is used to scratch the eclogite, and the detection component includes a CCD camera with a visual sensor aligned with the scratching position. The scribing assembly protects the longitudinally sliding connecting frame. A compression cover is inserted into the bottom of the connecting frame, and a connecting sleeve is installed at the bottom of the compression cover. A hardness scribing head is installed on the connecting sleeve. A support frame is installed on the base, and the support frame is respectively provided with a downward sliding groove and a scribing groove that are slidably connected to the connecting sleeve. The downward sliding groove is used to guide the hardness scribing head to be squeezed into the eclogite, and the scribing groove is used to guide the hardness scribing head to slide along the eclogite. A cleaning cover is rotatably mounted on the side wall of the connecting sleeve. A blower cover is mounted on the bottom of the cleaning cover. A flow-dividing roller is rotatably mounted on the blower cover, and several pairs of flow-dividing cavities are staggered on the flow-dividing roller. A power storage cover is mounted on the base. The connecting frame slides and squeezes the power storage cover chamber. The airflow cleans the scratched area through the blower cover and drives the flow-dividing roller to rotate. The airflow direction is adjusted through each flow-dividing cavity.

[0006] In a preferred embodiment of the present invention, support blocks are installed at the four corners of the base, pads are installed at the bottom of the support blocks, anti-slip grooves are provided at the bottom of the pads, and the pads are in the shape of bosses. A controller is installed on the base, and the controller is used to control the scribing component and the detection component.

[0007] In a preferred embodiment of the present invention, a positioning plate is installed on the bracket, and one end of the eclogite is attached to the positioning plate. A support seat is installed on the base, and a threaded rod is screwed onto the support seat. A pressure handle is installed at one end of the threaded rod, and a pressure plate is rotatably installed at the end of the threaded rod, with the pressure plate attached to the other end of the eclogite. An insertion rod is installed on the pressure plate, and the insertion rod is movably inserted into the support seat. An insertion plate is installed on the insertion rod, and the cross-sectional area of ​​the insertion plate is larger than that of the insertion rod. The insertion plate is used to prevent the insertion rod and the support seat from separating.

[0008] In a preferred embodiment of the present invention, a gantry is mounted on the base, the gantry spans across the bracket, and the side wall of the gantry is connected to the CCD camera housing.

[0009] In a preferred embodiment of the present invention, a positioning frame is installed on the base, an electric push rod is installed on the positioning frame, the output end of the electric push rod is connected to the side wall of the connecting frame, a sliding plate is installed on the side wall of the compression cover, a limiting rod is movably installed through the sliding plate, the limiting rod is in a vertical state, the top of the limiting rod is connected to the bottom of the connecting frame, a limiting plate is installed at the bottom of the limiting rod, and the limiting plate is used to prevent the limiting rod and the sliding plate from separating.

[0010] In a preferred embodiment of the present invention, a guide frame is installed on the outer wall of the compression cover, and a slide rod is installed at the end of the guide frame. The slide rod is slidably disposed in the downward sliding groove, and the downward sliding groove is connected to the scribing groove. The downward sliding groove is an inclined groove, and the scribing groove is a straight groove.

[0011] In a preferred embodiment of the present invention, a baffle is slidably installed inside the compression cover. The bottom of the baffle is connected to the pressure rod. A pressing spring is installed between the baffle and the compression cover. The compression direction of the pressing spring and the movement direction of the pressure rod are both on the same straight line. When the compression cover slides along the downward sliding groove, the hardness scoring head is pressed against the eclogite surface, and the hardness scoring head drives the baffle and the pressing spring to retract. The pressing spring is used to ensure that the hardness scoring head always has a downward movement force.

[0012] In a preferred embodiment of the present invention, a rocker arm is rotatably mounted on the side wall of the connecting sleeve, the end of the rocker arm is connected to the cleaning cover, a strip groove is provided on the rocker arm, a fixing frame is installed at the bottom of the compression cover, a light rod is installed on the fixing frame, and the light rod is slidably connected to the strip groove. When the hardness scribing head and the connecting sleeve retract, the rocker arm is squeezed and deflected synchronously by the light rod, and the outlet of the blower cover is pushed to correspond to the scribing position.

[0013] In a preferred embodiment of the present invention, a piston is slidably mounted on the accumulator cover, and an accumulator rod is mounted on the side wall of the piston. The accumulator rod is movably connected to the accumulator cover and the guide frame, and the end of the accumulator rod is placed inside the etched groove. A return spring is installed between the piston and the accumulator cover, and the compression direction of the return spring and the movement direction of the accumulator rod are both on the same straight line. A connecting hose is installed on the side wall of the accumulator cover, and the end of the connecting hose is connected to the cleaning cover. A flow channel is provided inside the cleaning cover, and the flow channel is used to guide the airflow to flow along the eccentric position of the diverter roller.

[0014] A method for testing the hardness of eclogite, comprising the following steps: Step 1: First, use the support block at the bottom of the base and the pad with anti-slip grooves to ensure the entire machine is placed horizontally, ensuring that the equipment does not slip or tilt. Place the eclogite to be tested on the surface of the bracket and manually fine-tune the posture of the eclogite to keep the area to be tested horizontal. Then, attach one end of the eclogite to the positioning plate for limitation, rotate the pressure handle to drive the threaded rod to advance, drive the pressure plate to press the other end of the eclogite, and complete the ore's stable clamping with the limiting structure of the insertion rod and the insertion plate to ensure that the ore does not shift or tilt during the testing process. Step 2: Start the equipment and preset the operating parameters through the controller on the base. According to the Mohs hardness test grade sequence, select the initial low hardness specification hardness scribing head and install it on the connecting sleeve to complete the component assembly and debugging before testing. Step 3: The controller drives the electric push rod to slide the connecting frame longitudinally, so that the outer slide rod of the compression cover slides along the inclined downward slide groove, which drives the hardness scoring head to vertically press and fit against the preset horizontal detection point of the eclogite; the ore reverse pushes the connecting sleeve to move upward relative to the compression cover, and the rocker arm is deflected by the cooperation of the smooth rod and the strip groove, which drives the cleaning cover and the blowing cover to accurately align with the scoring area; at the same time, the guide frame presses the power storage rod, which generates high-pressure airflow inside the power storage cover. The airflow is delivered to the blowing cover through the connecting hose and the air duct, which drives the diversion roller to rotate and sprays airflow at multiple angles to blow away the mineral dust generated by scoring in real time; Step 4: The slide bar slides from the lower slide groove into the straight scribing groove, guiding the hardness scribing head to slide at a uniform speed on the horizontal surface of the eclogite to complete the standard scribing operation. The pressure of the scribing head is kept uniform and stable by the pressing spring throughout the process. After a single scribing is completed, the CCD camera on the gantry acquires the image of the scribing area through the built-in vision sensor, identifies whether permanent scratches are generated on the ore surface, and transmits the image data to the controller for storage and analysis. Step 5: Following the order of Mohs hardness grades from low to high, replace the hardness scribing head with different hardness specifications one by one. After each replacement of the scribing head, change the scribing point and the test end face on the eclogite surface. Repeat the scribing, chip removal and image acquisition process of Step 3 to Step 4 to complete the comparative test of multiple positions and multiple hardness grades. Step Six: The controller summarizes the test data from each group and makes a judgment based on the scratch test results: the scratch head that cannot produce permanent scratches has a hardness lower than that of eclogite, and the scratch head that can form clear irreversible scratches has a hardness higher than that of eclogite. Finally, based on the critically matched scratch head specifications, the Mohs hardness grade of the eclogite to be tested is accurately determined, and the overall hardness test is completed.

[0015] Compared with the prior art, the present invention has the following advantages: This invention features a follow-up synchronous cleaning mechanism that mechanically aligns with the squeezing and scratching motion of the hardness scriber, completing real-time synchronous cleaning during ore scratching operations. This eliminates the need for subsequent manual cleaning, simplifies the testing process, and improves the overall automation level. Furthermore, by synchronously changing the airflow direction and using multi-angle airflow coverage, it comprehensively removes fine ore debris and dust generated during scratching, reducing dust obscuring and filling of scratch patterns. Overall, it effectively improves upon many problems associated with traditional manual cleaning, such as incomplete cleaning, uneven cleaning force, and deformation of scratch patterns due to accidental touches. This ensures better integrity and clarity of scratch patterns, further enhancing the accuracy and stability of eclogite Mohs hardness testing.

[0016] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0017] In the attached diagram: Figure 1 A three-dimensional diagram of a device for detecting the hardness of eclogite; Figure 2 A side view of a device for detecting the hardness of eclogite. Figure 1 ; Figure 3 A side view of a device for detecting the hardness of eclogite. Figure 2 ; Figure 4 A partial view of a device for detecting the hardness of eclogite. Figure 1 ; Figure 5 A cross-sectional view of the power storage hood of a device for detecting the hardness of eclogite; Figure 6 A partial view of a device for detecting the hardness of eclogite. Figure 2 ; Figure 7 A cross-sectional view of the compression shroud of a device for detecting the hardness of eclogite; Figure 8 A cross-sectional view of the cleaning hood of a device for detecting the hardness of eclogite; Figure 9 A three-dimensional diagram of a flow divider roller in a device for detecting the hardness of eclogite.

[0018] In the diagram: 1. Base; 2. Support block; 3. Pad block; 4. Controller; 5. Gantry frame; 6. CCD camera; 7. Bracket; 8. Positioning plate; 9. Support seat; 10. Pressure plate; 11. Threaded rod; 12. Pressure handle; 13. Insert rod; 14. Insert plate; 15. Positioning frame; 16. Electric push rod; 17. Connecting frame; 18. Limiting rod; 19. Limiting plate; 20. Slide plate; 21. Compression cover; 22. Pressure rod; 23. Connecting sleeve; 24. Hard 25. Scoring head; 26. Baffle; 27. Pressing spring; 28. Guide frame; 29. ​​Slide rod; 30. Support frame; 31. Lowering slide; 32. Scoring slide; 33. Rocker arm; 34. Strip groove; 35. Polishing rod; 36. Fixing frame; 37. Cleaning cover; 38. Connecting hose; 39. Power storage cover; 40. Power storage rod; 41. Piston; 42. Return spring; 43. Blower cover; 44. Flow duct; 45. Diverting roller; 46. Diverting chamber. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0020] Example 1:

[0021] like Figures 1 to 9 As shown, a device for detecting the hardness of eclogite includes a base 1, a bracket 7 mounted on the base 1, and eclogite placed on the bracket 7. A scratching component and a detection component are respectively mounted on the bracket 7. The scratching component is used to scratch the eclogite, and the detection component includes a CCD camera 6 with a visual sensor aligned with the scratching position. The scribing component protects the longitudinally sliding connecting frame 17. A compression cover 21 is inserted into the bottom of the connecting frame 17, and a connecting sleeve 23 is installed at the bottom of the compression cover 21. A hardness scribing head 24 is installed on the connecting sleeve 23. A support frame 29 is installed on the base 1. The support frame 29 is provided with a downward sliding groove 30 and a scribing groove 31 that are slidably connected to the connecting sleeve 23. The downward sliding groove 30 is used to guide the hardness scribing head 24 to be squeezed into the eclogite, and the scribing groove 31 is used to guide the hardness scribing head 24 to slide along the eclogite. A cleaning cover 36 is rotatably mounted on the side wall of the connecting sleeve 23. A blower cover 42 is mounted on the bottom of the cleaning cover 36. A flow divider roller 44 is rotatably mounted on the blower cover 42, and several pairs of flow divider cavities 45 are staggered on the flow divider roller 44. A power storage cover 38 is mounted on the base 1. The connecting frame 17 slides and squeezes the chamber of the power storage cover 38. The airflow cleans the scratched area through the blower cover 42, and at the same time drives the flow divider roller 44 to rotate, and adjusts the airflow direction through each flow divider cavity 45.

[0022] like Figures 1 to 9 As shown in the specific embodiment, support blocks 2 are installed at the four corners of the base 1, and pad blocks 3 are installed at the bottom of the support blocks 2. The bottom of the pad blocks 3 is provided with anti-slip grooves, and the pad blocks 3 are in the shape of bosses. A controller 4 is installed on the base 1. The controller 4 is used to control the scribing component and the detection component. The pad blocks 3 with boss structures, together with the anti-slip grooves and support blocks 2, can improve the stability of the equipment placement, alleviate the problem of slight slippage and shaking during the equipment detection process, and help ensure the stability of the detection conditions.

[0023] like Figures 1 to 9 As shown, further, a positioning plate 8 is installed on the bracket 7, and one end of the eclogite is attached to the positioning plate 8. A support seat 9 is installed on the base 1, and a threaded rod 11 is screwed onto the support seat 9. A pressure handle 12 is installed at one end of the threaded rod 11, and a pressure plate 10 is rotatably installed at the end of the threaded rod 11, with the pressure plate 10 attached to the other end of the eclogite. An insertion rod 13 is installed on the pressure plate 10, and the insertion rod 13 is movably inserted into the support seat 9. An insertion plate 14 is installed on the insertion rod 13, and the cross-sectional area of ​​the insertion plate 14 is larger than that of the insertion rod 13. The insertion plate 14 is used to prevent the insertion rod 13 from separating from the support seat 9. Through the clamping structure of the positioning plate 8, the pressure plate 10, and the threaded rod 11, as well as the limiting structure of the insertion rod 13 and the insertion plate 14, a stable limit can be formed on the eclogite, which can reduce the possibility of displacement during ore detection.

[0024] Example 2:

[0025] The difference between the above embodiments and this embodiment is that: Figures 1 to 9As shown, a gantry 5 is mounted on the base 1, spanning across the bracket 7. The sidewalls of the gantry 5 are connected to the housing of the CCD camera 6. The mounting structure of the gantry 5 provides a stable mounting reference for the CCD camera 6, reducing camera shake deviation and helping to improve the clarity and stability of scratch image acquisition.

[0026] like Figures 1 to 9 As shown in the specific embodiment, a guide frame 27 is installed on the outer wall of the compression cover 21, and a slide rod 28 is installed at the end of the guide frame 27. The slide rod 28 is slidably disposed in the downward sliding groove 30, and the downward sliding groove 30 is interconnected with the scribing groove 31. The downward sliding groove 30 is an inclined groove, and the scribing groove 31 is a straight groove. The inclined downward sliding groove 30 and the straight scribing groove 31 cooperate with each other to realize the action logic of first tilting down for alignment and then horizontally and smoothly scribing, which can make the feeding action of the scribing head more regular and orderly.

[0027] like Figures 1 to 9 As shown, a guide frame 27 is further installed on the outer wall of the compression cover 21, and a slide rod 28 is installed at the end of the guide frame 27. The slide rod 28 is slidably disposed in the downward sliding groove 30, and the downward sliding groove 30 is interconnected with the scribing groove 31. The downward sliding groove 30 is an inclined groove, and the scribing groove 31 is a straight groove. The sliding fit structure of the guide frame 27 and the slide rod 28 can effectively limit the movement trajectory of the compression cover 21, reduce radial offset during the scribing process, and help ensure the straightness of the scribing marks.

[0028] Example 3:

[0029] The difference between the above embodiments and this embodiment is that: Figures 1 to 9 As shown, a baffle 25 is slidably installed inside the compression cover 21. The bottom of the baffle 25 is connected to the pressure rod 22. A pressing spring 26 is installed between the baffle 25 and the compression cover 21. The compression direction of the pressing spring 26 and the movement direction of the pressure rod 22 are both on the same straight line. When the compression cover 21 slides along the downward sliding groove 30, the hardness scoring head 24 is pressed against the eclogite surface, and the hardness scoring head 24 drives the baffle 25 and the pressing spring 26 to retract. The pressing spring 26 is used to ensure that the hardness scoring head 24 always has a downward force. Through the elastic cooperation structure of the pressing spring 26, the baffle 25 and the pressure rod 22, the hardness scoring head 24 can maintain a moderate downward force.

[0030] like Figures 1 to 9As shown, in a specific embodiment, a rocker arm 32 is rotatably mounted on the side wall of the connecting sleeve 23. The end of the rocker arm 32 is connected to the cleaning cover 36. A strip groove 33 is provided on the rocker arm 32. A fixing frame 35 is installed at the bottom of the compression cover 21. A smooth rod 34 is installed on the fixing frame 35. The smooth rod 34 is slidably connected to the strip groove 33. When the hardness scoring head 24 and the connecting sleeve 23 retract, the smooth rod 34 squeezes the rocker arm 32 to deflect synchronously, and pushes the outlet of the blower cover 42 to correspond with the scoring position. Relying on the linkage structure of the smooth rod 34, the strip groove 33 and the rocker arm 32, the blower cover 42 can be aligned with the scoring action, allowing the airflow to blow close to the scoring area, which helps to improve the targeting of the cleaning.

[0031] like Figures 1 to 9 As shown, a piston 40 is slidably mounted on the accumulator 38, and an accumulator rod 39 is mounted on the side wall of the piston 40. The accumulator rod 39 is movably connected to the accumulator 38 and the guide frame 27, and the end of the accumulator rod 39 is placed inside the etched groove 31. A return spring 41 is installed between the piston 40 and the accumulator 38. The compression direction of the return spring 41 and the movement direction of the accumulator rod 39 are both on the same straight line. A connecting hose 37 is installed on the side wall of the accumulator 38. The end of the connecting hose 37 is connected to the cleaning cover 36, and a flow channel 43 is provided inside the cleaning cover 36. The flow channel 43 is used to guide the airflow along the eccentric position of the diverter roller 44. Through the accumulator structure of the accumulator rod 39, piston 40 and return spring 41, combined with the air guiding structure of the connecting hose 37 and flow channel 43, the purging airflow can be generated autonomously by mechanical movement without the need for additional air source equipment, which can simplify equipment configuration and save energy to a certain extent.

[0032] This invention also discloses a method for testing the hardness of eclogite, comprising the following steps: Step 1: First, use the support block 2 at the bottom of the base 1 and the pad block 3 with anti-slip grooves to make the whole machine horizontal, ensuring that the equipment does not slip or tilt. Place the eclogite to be tested on the surface of the bracket 7, manually fine-tune the posture of the eclogite to keep the area to be tested horizontal. Then, attach one end of the eclogite to the positioning plate 8 for limitation, rotate the pressure handle 12 to drive the threaded rod 11 to advance, drive the pressure plate 10 to press the other end of the eclogite, and complete the ore's stable clamping with the limiting structure of the insertion rod 13 and the insertion plate 14 to ensure that the ore does not shift or tilt during the testing process. Step 2: Start the equipment and preset the operating parameters through the controller 4 on the base 1. According to the Mohs hardness test grade sequence, select the initial low hardness specification hardness scribing head 24 and install it on the connecting sleeve 23 to complete the assembly and debugging of the components before testing. Step 3: The controller 4 drives the electric push rod 16 to slide the connecting frame 17 longitudinally, so that the outer slide rod 28 of the compression cover 21 slides along the inclined downward slide groove 30, which drives the hardness scoring head 24 to vertically press and adhere to the preset horizontal detection point of the eclogite; the ore reverse push connecting sleeve 23 moves upward relative to the compression cover 21, and the rocker arm 32 is deflected by the cooperation of the smooth rod 34 and the strip groove 33, which drives the cleaning cover 36 and the blowing cover 42 to accurately align with the scoring area; at the same time, the guide frame 27 presses the power storage rod 39, so that a high-pressure airflow is generated inside the power storage cover 38. The airflow is delivered to the blowing cover 42 through the connecting hose 37 and the air duct 43, which drives the diverting roller 44 to rotate and spray airflow at multiple angles to blow away the mineral dust generated by scoring in real time; Step 4: The slide bar 28 slides from the lower slide groove 30 into the straight scribing groove 31, guiding the hardness scribing head 24 to slide at a uniform speed on the horizontal surface of the eclogite to complete the standard scribing operation. Throughout the process, the pressing spring 26 ensures that the scribing head's squeezing force is uniform and stable. After a single scribing is completed, the CCD camera 6 on the gantry 5 acquires images of the scribing area through its built-in vision sensor, identifies whether permanent scratches have been generated on the ore surface, and transmits the image data to the controller 4 for storage and analysis. Step 5: Following the order of Mohs hardness grades from low to high, replace the hardness scribing head 24 with different hardness specifications one by one. After each replacement of the scribing head, change the scribing point and the test end face on the eclogite surface. Repeat the scribing, chip removal and image acquisition process of Step 3 to Step 4 to complete the comparative test of multiple positions and multiple hardness grades. Step Six: Controller 4 summarizes the test data from each group and makes a judgment based on the scratch test results: the scratch head that cannot produce permanent scratches has a hardness lower than that of eclogite, and the scratch head that can form clear irreversible scratches has a hardness higher than that of eclogite. Finally, based on the critically matched scratch head specifications, the Mohs hardness grade of the eclogite to be tested is accurately determined, and the overall hardness test is completed.

[0033] The operating principle of the device for detecting the hardness of eclogite according to the present invention is as follows: First, the support blocks 2 at the four corners of the base 1, together with the boss-shaped pads 3 with anti-slip grooves, provide stable support for the entire equipment, avoiding slippage and tilting during the testing process and ensuring testing accuracy. The operator controls the operation of the whole machine through the controller 4 on the base 1.

[0034] Before testing, the eclogite to be tested is placed on the surface of the bracket 7 of the base 1. The eclogite is first aligned and leveled, and the placement of the ore is finely adjusted to ensure that the area to be scratched remains absolutely horizontal, avoiding problems such as skewed scratch paths and uneven scratch depth caused by tilting or misalignment of the ore. After leveling, one end of the eclogite is initially positioned against the positioning plate 8. Then, the pressure handle 12 on the support base 9 is rotated, which drives the threaded rod 11 to rotate and push forward, driving the pressure plate 10 to press against and tighten the other end of the eclogite. With the movable insertion of the insertion rod 13 into the support base 9 and the limiting protection of the large cross-sectional area insertion plate 14, the pressure plate 10 is prevented from shifting or falling off, achieving a horizontal and stable clamping and fixing of the eclogite, ensuring that all subsequent scratching operations are completed on a horizontal reference surface.

[0035] After the equipment is clamped and positioned, the controller 4 starts the scribing assembly. The connecting frame 17 slides longitudinally, causing the compression cover 21, connecting sleeve 23, and hardness scribing head 24 inserted at the bottom to slide longitudinally synchronously. Meanwhile, the slide rod 28 at the end of the guide frame 27 on the outer side of the compression cover 21 slides along the downward sliding groove 30 inclined on the support frame 29. Relying on the inclined guiding effect of the downward sliding groove 30, the hardness scribing head 24 is precisely and vertically pressed against the preset detection position of the eclogite. During the process of the hardness scribing head 24 pressing against the ore, the pressure rod 22 inside the compression cover 21 is pushed against the baffle 25, causing the baffle 25 to slide along the inside of the compression cover 21 and compress the pressing spring 26. With the help of the elastic restoring characteristics of the pressing spring 26, a continuous and stable downward pressing force is provided to the hardness scribing head 24, ensuring that the scribing head is tightly pressed against the surface of the eclogite.

[0036] After the hardness scoring head 24 completes vertical extrusion positioning, the slide rod 28 slides from the lower slide groove 30 into the connected straight scoring groove 31. Through the horizontal guiding action of the scoring groove 31, the hardness scoring head 24 is driven to slide at a uniform speed along the eclogite surface to carry out a single ore surface scoring operation. During the entire process of the scoring component feeding and scoring, the guide frame 27 simultaneously extrudes the accumulator rod 39 inserted inside the accumulator shroud 38, pushing the piston 40 to slide along the inner cavity of the accumulator shroud 38 and compress the return spring 41, squeezing out the gas inside the accumulator shroud 38 in real time. This allows the high-pressure airflow to be continuously introduced into the cleaning shroud 36 through the connecting hose 37. The airflow is stably delivered to the blowing shroud 42 along the airflow duct 43 inside the cleaning shroud 36, realizing the simultaneous execution of scoring operation and air blowing for chip removal.

[0037] During the process of the hardness scoring head 24 pressing and adhering to the eclogite for scoring, the connecting sleeve 23 slides upward relative to the compression cover 21 due to the reverse pushing action of the ore. At this time, the smooth rod 34 on the bottom fixing frame 35 of the compression cover 21 slides relative to the rocker arm 32 along the strip groove 33 and presses the rocker arm 32, driving the rocker arm 32 to deflect. This, in turn, drives the cleaning cover 36, which is rotated and installed on the side wall of the connecting sleeve 23, to rotate synchronously and make fine adjustments, so that the air outlet of the blowing cover 42 is accurately aligned with the ore scoring position in real time. High-pressure airflow is continuously sprayed out from the blowing cover 42. The airflow acts on the eccentric position of the diverting roller 44, driving the diverting roller 44 to rotate continuously. With the help of several pairs of diverting chambers 45 arranged alternately on the diverting roller 44, the direction of airflow spray is adaptively adjusted, sweeping away ore debris and dust generated during scoring in all directions and without dead angles, keeping the scoring pattern clear and clean throughout the process, and providing clear imaging conditions for subsequent visual inspection.

[0038] After a single scratching and simultaneous chip removal operation is completed, the CCD camera 6 on the gantry 5, which spans the bracket 7, is immediately activated. Relying on its built-in vision sensor, it accurately focuses on the scratched area and collects core image information such as whether scratches are generated on the ore surface, the scratch formation status, and the depth and integrity of the scratches. The data is then uploaded to the controller 4 in real time for identification and analysis.

[0039] This device follows the Mohs hardness testing principle to conduct graded testing. During the testing process, staff sequentially change hardness scratch heads 24 to match different Mohs hardness standards, with hardness parameters increasing progressively. Each time a different set of hardness scratch heads 24 is used, the scratching points and areas on the eclogite surface are actively varied. The aforementioned extrusion, feeding, scratching, and simultaneous chip removal process is repeated at multiple locations and end faces of the ore. Scratch tests are performed on the eclogite using scratch heads of different hardness standards at multiple locations and points. During the testing process, continuous comparison and judgment are made: scratch heads with lower hardness standards cannot leave permanent scratches on the eclogite surface, while scratch heads with a hardness level higher than the ore's can form stable, clear, and irreversible scratches on the eclogite surface. Finally, the corresponding specification of hardness scratch head 24 that can produce identifiable and effective scratches on the eclogite surface is selected, accurately matching and defining the Mohs hardness level of the eclogite.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for detecting the hardness of eclogite, comprising a base (1), characterized in that: A bracket (7) is installed on the base (1), and eclogite is placed on the bracket (7). A scratching component and a detection component are respectively installed on the bracket (7). The scratching component is used to scratch the eclogite, and the detection component includes a CCD camera (6) with a visual sensor aligned with the scratching position. The scribing component protects the longitudinally sliding connecting frame (17). A compression cover (21) is inserted into the bottom of the connecting frame (17), and a connecting sleeve (23) is installed at the bottom of the compression cover (21). A hardness scribing head (24) is installed on the connecting sleeve (23). A support frame (29) is installed on the base (1), and a downward sliding groove (30) and a scribing groove (31) are respectively opened on the support frame (29) and are slidably connected to the connecting sleeve (23). The downward sliding groove (30) is used to guide the hardness scribing head (24) to be squeezed into the eclogite, and the scribing groove (31) is used to guide the hardness scribing head (24) to slide along the eclogite. The side wall of the connecting sleeve (23) is rotatably mounted with a cleaning cover (36), and the bottom of the cleaning cover (36) is mounted with a blower cover (42). The blower cover (42) is rotatably mounted with a diverter roller (44), and several pairs of diverter cavities (45) are staggered on the diverter roller (44). The base (1) is mounted with a power storage cover (38). The connecting frame (17) slides and squeezes the chamber of the power storage cover (38). The airflow cleans the scratched area through the blower cover (42) and drives the diverter roller (44) to rotate. The airflow direction is adjusted through each diverter cavity (45).

2. The device for detecting the hardness of eclogite according to claim 1, characterized in that, Support blocks (2) are installed at the four corners of the base (1). A pad (3) is installed at the bottom of the support block (2). An anti-slip groove is provided at the bottom of the pad (3). The pad (3) is in the shape of a boss. A controller (4) is installed on the base (1). The controller (4) is used to control the scribing component and the detection component.

3. The device for detecting the hardness of eclogite according to claim 1, characterized in that, A positioning plate (8) is installed on the bracket (7), and one end of the eclogite is attached to the positioning plate (8). A support seat (9) is installed on the base (1). A threaded rod (11) is screwed onto the support seat (9), and a pressure handle (12) is installed at one end of the threaded rod (11). A pressure plate (10) is rotatably installed at the end of the threaded rod (11), and the pressure plate (10) is attached to the other end of the eclogite. An insertion rod (13) is installed on the pressure plate (10), and the insertion rod (13) is movably inserted into the support seat (9). An insertion plate (14) is installed on the insertion rod (13), and the cross-sectional area of ​​the insertion plate (14) is larger than that of the insertion rod (13). The insertion plate (14) is used to prevent the insertion rod (13) and the support seat (9) from separating.

4. The device for detecting the hardness of eclogite according to claim 1, characterized in that, A gantry (5) is installed on the base (1), the gantry (5) spans across the bracket (7), and the side wall of the gantry (5) is connected to the housing of the CCD camera (6).

5. The device for detecting the hardness of eclogite according to claim 1, characterized in that, A positioning frame (15) is installed on the base (1), and an electric push rod (16) is installed on the positioning frame (15). The output end of the electric push rod (16) is connected to the side wall of the connecting frame (17). A sliding plate (20) is installed on the side wall of the compression cover (21). A limiting rod (18) is movably installed through the sliding plate (20). The limiting rod (18) is in a vertical state. The top of the limiting rod (18) is connected to the bottom of the connecting frame (17). A limiting plate (19) is installed at the bottom of the limiting rod (18), and the limiting plate (19) is used to prevent the limiting rod (18) and the sliding plate (20) from separating.

6. The apparatus for detecting the hardness of eclogite according to claim 1, characterized in that, The outer wall of the compression cover (21) is equipped with a guide frame (27), and a slide rod (28) is installed at the end of the guide frame (27). The slide rod (28) is slidably disposed in the downward sliding groove (30), and the downward sliding groove (30) is connected to the scribing groove (31). The downward sliding groove (30) is an inclined groove, and the scribing groove (31) is a straight groove.

7. The apparatus for detecting the hardness of eclogite according to claim 6, characterized in that, A baffle (25) is slidably installed inside the compression cover (21). The bottom of the baffle (25) is connected to the pressure rod (22). A pressing spring (26) is installed between the baffle (25) and the compression cover (21). The compression direction of the pressing spring (26) and the movement direction of the pressure rod (22) are both on the same straight line. When the compression cover (21) slides along the downward sliding groove (30), the hardness scoring head (24) is pressed against the eclogite surface. The hardness scoring head (24) drives the baffle (25) and the pressing spring (26) to retract. The pressing spring (26) is used to ensure that the hardness scoring head (24) always has a downward movement force.

8. The apparatus for detecting the hardness of eclogite according to claim 7, characterized in that, A rocker arm (32) is rotatably mounted on the side wall of the connecting sleeve (23). The end of the rocker arm (32) is connected to the cleaning cover (36). A strip groove (33) is provided on the rocker arm (32). A fixing frame (35) is installed at the bottom of the compression cover (21). A light rod (34) is installed on the fixing frame (35). The light rod (34) is slidably connected to the strip groove (33). When the hardness scoring head (24) and the connecting sleeve (23) retract, the light rod (34) squeezes the rocker arm (32) to deflect synchronously and pushes the outlet of the blower cover (42) to correspond to the scoring position.

9. The apparatus for detecting the hardness of eclogite according to claim 1, characterized in that, A piston (40) is slidably mounted on the accumulator (38). An accumulator rod (39) is mounted on the side wall of the piston (40). The accumulator rod (39) is movably connected to the accumulator (38) and the guide frame (27). The end of the accumulator rod (39) is placed inside the etched groove (31). A return spring (41) is installed between the piston (40) and the accumulator (38). The compression direction of the return spring (41) and the movement direction of the accumulator rod (39) are both on the same straight line. A connecting hose (37) is installed on the side wall of the accumulator (38). The end of the connecting hose (37) is connected to the cleaning cover (36). A flow channel (43) is provided inside the cleaning cover (36). The flow channel (43) is used to guide the airflow to flow along the eccentric position of the diverter roller (44).

10. A method for testing the hardness of eclogite, characterized in that, An apparatus for detecting the hardness of eclogite according to any one of claims 1 to 9, and a method for detecting the hardness of eclogite comprising the following steps: Step 1: First, the entire machine is placed horizontally by the support block (2) at the bottom of the base (1) and the pad block (3) with anti-slip groove, ensuring that the equipment does not slip or tilt. Place the eclogite to be tested on the surface of the bracket (7), manually fine-tune the posture of the eclogite, so that the area to be tested and marked on the ore remains horizontal. Then, attach one end of the eclogite to the positioning plate (8) for limitation, rotate the pressure handle (12) to drive the threaded rod (11) to advance, drive the pressure plate (10) to press the other end of the eclogite, and complete the ore's stable clamping with the limiting structure of the insertion rod (13) and the insertion plate (14) to ensure that the ore does not shift or tilt during the testing process. Step 2: Start the equipment and preset the operating parameters through the controller (4) on the base (1). According to the Mohs hardness test grade sequence, select the initial low hardness specification hardness scribing head (24) and install it on the connecting sleeve (23) to complete the assembly and debugging of the components before the test. Step 3: The controller (4) drives the electric push rod (16) to drive the connecting frame (17) to slide longitudinally, so that the outer slide rod (28) of the compression cover (21) slides along the inclined downward slide groove (30) and drives the hardness scoring head (24) to vertically press and fit against the preset horizontal detection point of the eclogite; the ore reverse push connecting sleeve (23) moves upward relative to the compression cover (21), and the rocker arm (32) is deflected by the cooperation of the light rod (34) and the strip groove (33), so that the cleaning cover (36) and the blowing cover (42) are precisely aligned with the scoring area; at the same time, the guide frame (27) presses the power storage rod (39), so that the power storage cover (38) generates a high-pressure airflow inside, and the airflow is delivered to the blowing cover (42) through the connecting hose (37) and the air duct (43), driving the diverting roller (44) to rotate and spraying airflow at multiple angles to blow away the mineral dust generated by the scoring in real time; Step 4: The slide bar (28) slides from the lower slide groove (30) into the straight scribing groove (31), guiding the hardness scribing head (24) to slide at a uniform speed on the horizontal surface of the eclogite to complete the standard scribing operation. The pressure spring (26) ensures that the scribing head has uniform and stable pressure throughout the process. After a single scribing is completed, the CCD camera (6) on the gantry (5) collects images of the scribing area through the built-in vision sensor, identifies whether permanent scratches are generated on the surface of the ore, and transmits the image data to the controller (4) for storage and analysis. Step 5: In order of Mohs hardness from low to high, replace the hardness scribing head (24) with different hardness specifications one by one. After each replacement of the scribing head, change the scribing point and the detection end face on the eclogite surface. Repeat the scribing, chip removal and image acquisition process of Step 3 to Step 4 to complete the comparative detection of multiple positions and multiple hardness levels. Step 6: The controller (4) summarizes the test data of each group and makes a judgment based on the scratch test results: the hardness of the scratch head that cannot produce permanent scratches is lower than that of eclogite, and the hardness of the scratch head that can form clear irreversible scratches is higher than that of eclogite. Finally, based on the critical matching scratch head specifications, the Mohs hardness grade of the eclogite to be tested is accurately determined, and the overall hardness test is completed.

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