A geological exploration rock and mineral thin section composite grinding and polishing device and a use method thereof

Abstract

The present application belongs to the technical field of rock and mineral detection equipment, and specifically discloses a rock and mineral slice composite grinding and polishing device for geological exploration and a use method. The device comprises a base, a dust falling mechanism, a rotating mechanism, a moving mechanism, a grinding and polishing mechanism and a controller. The controller, a dust suction pump, a dust suction box, a liquid storage tank and a liquid delivery pump are arranged on the outer side of the base, and a high-pressure spray head, a vacuum chuck and a polishing disc are arranged on the inner side. The rotating motor of the rotating mechanism drives the vacuum chuck of the grinding and polishing mechanism to clamp and rotate the rock and mineral slice on one hand, and drives the transmission plate of the moving mechanism and the dust suction disc of the dust falling mechanism to reciprocate on the other hand through the bevel gear set, the connecting rod and the reciprocating screw. The method comprises the steps of accessory starting, feeding, dynamic dust removal, grinding and polishing. The present application solves the problems of serious dust pollution, easy overheating of samples and uneven polishing of traditional equipment in rock and mineral slice processing, and has the characteristics of efficient dust removal, precise temperature control and high-surface grinding and polishing.

Description

Technical Field

[0001] This invention belongs to the technical field of rock and mineral testing equipment, specifically relating to a composite grinding and polishing device for rock and mineral thin sections used in geological exploration and its usage method. Background Technology

[0002] In geological exploration, rock and mineral analysis, and oil and gas geological research, rock and mineral thin sections are the core samples used for mineral identification, lithology determination, structural analysis, and geological evolution analysis with the help of polarizing microscopes and micro-area analysis instruments. Grinding and polishing, as the core process of thin section preparation, directly determine the surface smoothness, optical uniformity, and accuracy and reliability of subsequent test data.

[0003] Currently, there are still many technical defects in the thin-slab grinding and polishing equipment for rocks and minerals used in laboratories and in the field, which are difficult to balance processing quality, operational safety, environmental protection and processing efficiency.

[0004] First, dust pollution is severe, and dust removal is ineffective, posing occupational health and environmental hazards. Due to the generally high hardness of rocks and ores, high-speed friction during grinding and polishing generates a large amount of fine rock dust. Most current mainstream polishing equipment uses a fixed, single-point dust collection structure, with a limited collection area, easily creating airflow blind spots, causing a large amount of fine dust to continuously spill into the workspace. When this rock dust is inhaled by operators, it can easily induce respiratory diseases and pose occupational health risks such as pneumoconiosis. Simultaneously, the scattered dust adheres to instrument surfaces and lab benches, polluting the overall experimental environment and interfering with the normal operation of other precision geological testing equipment, failing to meet laboratory environmental protection and safety production standards. This problem is particularly prominent in traditional handheld polishing equipment and conventional semi-automatic polishing devices, most of which lack a systematic dust collection structure.

[0005] Secondly, the lack of an efficient atomization cooling and lubrication system makes samples susceptible to high-temperature damage. Rock and mineral thin sections are brittle and precision samples; prolonged high-speed grinding and polishing generates a large amount of frictional heat, causing a sharp rise in local temperature. Most existing equipment uses simple drip lubrication or lacks a cooling structure, failing to achieve full-area atomization and uniform cooling of the coolant. This makes samples prone to micro-cracks and surface ablation defects that are difficult to detect with the naked eye after local overheating. This not only damages the integrity of the thin section but also causes blurred mineral boundaries and excessive surface roughness, seriously affecting the accuracy of subsequent detection results such as polarization observation and micro-area composition analysis. This leads to large fluctuations in the quality of samples within the same batch, further increasing the risk of sample damage and expanding the processing defect rate.

[0006] Secondly, the polishing motion is monotonous, resulting in insufficient uniformity of sample surface processing. Current conventional grinding and polishing equipment mostly employs a single rotating polishing disc or unidirectional sample rotation, leading to a fixed polishing trajectory and limited coverage. This easily results in polishing dead zones, localized over-grinding, and residual surface scratches. Particularly for rocks and minerals with complex compositions and uneven hardness, a single motion method cannot achieve uniform grinding and polishing across the entire surface. This makes it difficult to meet high-precision geological testing standards for the surface flatness and smoothness of thin sections, often requiring secondary manual finishing, significantly increasing labor intensity and processing time, resulting in low overall processing efficiency.

[0007] Finally, the workpiece fixation stability is insufficient, and the transmission and protection structures are inadequate. Traditional clamping and snap-fit ​​fixing structures are prone to displacement and slight vibration of rock and ore flakes under high-speed grinding conditions, which can lead to edge chipping and breakage, resulting in sample scrap. In addition, most of the transmission components such as gears and screws in existing equipment are exposed, allowing grinding dust to easily enter the transmission gaps, causing component jamming and wear, and shortening the equipment's service life. At the same time, the exposed transmission structure also poses a safety hazard of mechanical pinching, resulting in poor stability and safety of equipment operation.

[0008] As can be seen from the above, existing rock and ore thin-slab grinding and polishing equipment has multiple technical shortcomings in dust control, temperature control and lubrication, polishing uniformity, workpiece fixation, and equipment protection, failing to meet the demands of modern geological exploration for high-quality, mass production, and green and safe preparation of thin slabs. Therefore, developing a composite grinding and polishing device for rock and ore thin slabs that can achieve full-area dynamic dust removal, atomized cooling lubrication, composite trajectory polishing, stable workpiece clamping, and complete protection has significant practical application value. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this invention provides a composite grinding and polishing device for thin-slice rocks and minerals used in geological exploration, and also provides a method for using the composite grinding and polishing device for thin-slice rocks and minerals used in geological exploration.

[0010] The geological exploration rock and ore thin-slice composite grinding and polishing device of the present invention is implemented as follows: it includes a base, a dust collection mechanism, a rotating mechanism, a moving mechanism, a grinding and polishing mechanism, and a controller. The base has a U-shaped or H-shaped structure, and the controller is disposed on the outer side wall of the base. The dust suppression mechanism includes a dust pump, a dust collection box, a dust collection disc, a liquid storage tank, an infusion pump, and a high-pressure nozzle. The dust pump and dust collection box are fixedly mounted on the outer wall of the base, and the dust collection disc is slidably mounted on the lower part of the inner side of the base. The air inlet of the dust pump is connected to the dust collection box through a pipe, and the dust collection box is connected to the dust collection disc through a pipe. The liquid storage tank and infusion pump are fixedly mounted on the outer wall of the base, and the high-pressure nozzle is located on the inner side of the base. The infusion pump is connected to the liquid storage tank and the high-pressure nozzle through pipes. The rotating mechanism includes a rotary motor and a vacuum suction cup. The rotary motor is fixedly mounted on the outer side wall of the base and its output shaft is connected to the vacuum suction cup rotatably mounted on the inner side wall of the base. The vacuum suction cup is connected to the vacuum generating device and its suction cup surface faces the opposite inner side wall of the base. The moving mechanism includes a first bevel gear set, a first connecting rod, a second bevel gear set, a reciprocating screw, and a transmission plate. The output shaft of the rotary motor is connected to the first driving gear of the first bevel gear set. The first connecting rod is vertically arranged and its two ends are respectively connected to the first driven gear of the first bevel gear set and the second driving gear of the second bevel gear set. The reciprocating screw is parallel to the output shaft of the rotary motor and rotatably arranged below the base plate of the base. One end of the reciprocating screw is connected to the second driven gear of the second bevel gear set. The transmission plate is arranged above the base plate on the inner side of the base. A guide groove parallel to the reciprocating screw is opened through the base plate of the base. The lower part of the transmission plate slides through the guide groove and is threadedly fitted onto the reciprocating threaded section of the reciprocating screw. At least two dust collection discs are fixedly arranged at intervals on the transmission plate. The grinding and polishing mechanism includes a polishing disc movably disposed inside the base and facing the vacuum suction cup, and a polishing shaft connected to the polishing disc movably passes through the side wall of the base and is connected to the rotating mechanism for transmission. The dust pump, infusion pump, rotary motor, and vacuum generator are electrically connected to the controller.

[0011] Furthermore, the transmission plate extends to both sides of the guide groove and is provided with multiple dust suction discs with upward openings at intervals along the extension direction. A slider that slides through the guide groove is fixedly provided at the bottom end of the transmission plate, and the slider is threadedly fitted onto the reciprocating thread section of the reciprocating screw.

[0012] Furthermore, the grinding and polishing mechanism also includes a third bevel gear set, a second connecting rod, a fourth bevel gear set, and an outer sleeve. The end of the reciprocating screw away from the first connecting rod is connected to the third driving gear of the third bevel gear set. The second connecting rod is vertically arranged and its two ends are respectively connected to the third driven gear of the third bevel gear set and the fourth driving gear of the fourth bevel gear set. The outer sleeve movably passes through the side wall of the base and its inner end is coaxially connected to the polishing disc. The outer end of the outer sleeve is connected to the fourth driven gear of the fourth bevel gear set.

[0013] Furthermore, a first bracket and a second bracket are respectively fixedly installed on the two outer side walls of the base. The first connecting rod rotates vertically through the first bracket, and the second connecting rod rotates vertically through the second bracket.

[0014] Furthermore, the grinding and polishing mechanism also includes a fifth bevel gear set, a transmission screw, a sliding plate, and a sliding rod. The transmission screw is arranged parallel to one side of the outer sleeve and has a reciprocating thread coaxially on its surface. The fifth driving gear of the fifth bevel gear set is connected to the second connecting rod, and the fifth driven gear is connected to the transmission screw. The sliding plate is threadedly fitted onto the reciprocating thread of the transmission screw. The side of the sliding plate away from the transmission screw is rotatably fitted into an annular groove on the outer sleeve. The sliding rod extends coaxially from the end away from the polishing disc into the outer sleeve and is driven by a keyway. The end of the sliding rod away from the polishing disc is connected to the fourth driven gear of the fourth bevel gear set.

[0015] Furthermore, the present invention also includes a protective component, which includes a protective tube and a protective cover. The protective cover is a long plate with an arc-shaped cross-section. The first bevel gear set, the first connecting rod, the second bevel gear set, the third bevel gear set, the second connecting rod, the fourth bevel gear set, and the fifth bevel gear set are all movably enclosed in the protective tube. The reciprocating screw and the transmission screw are respectively movably enclosed with protective covers that have an opening at the top.

[0016] Furthermore, the high-pressure nozzle is positioned above and / or at least on one side of the vacuum suction cup, with the nozzle facing the polishing disc. The high-pressure nozzle is connected to the inner wall of the base via a nozzle holder, and multiple high-pressure nozzles are spaced apart on the nozzle holder.

[0017] Furthermore, a third bracket is fixedly installed on the outer side wall of the base, and the rotary motor is fixedly connected to the third bracket; a reinforcing rib is fixedly installed at the connection between the inner side wall of the base and the bottom plate.

[0018] The method of using the geological exploration rock and ore thin-slice composite grinding and polishing device of the present invention is as follows: it includes the steps of accessory start-up, material feeding, dynamic dust removal, and grinding and polishing, and the specific contents of each step are as follows: A. Accessory Start-up: The dust pump and infusion pump are started by the controller, which creates a negative pressure in the sealed dust collection box and forms an airflow capture zone in the grinding and polishing area through the dust collection disc. At the same time, the infusion pump draws coolant from the storage tank and sprays it onto the surface of the rock and mineral sheet through a high-pressure nozzle for lubrication and cooling. B. Loading: Start the vacuum generator to create negative pressure on the surface of the vacuum suction cup; then place the thin sheet of rock ore to be processed on the vacuum suction cup and fix it in place. C. Dynamic dust removal: The rotary motor is started by the controller, which drives the thin rock and ore sheet to rotate with the vacuum suction cup; at the same time, the rotary motor distributes power through the first bevel gear group, and through the first connecting rod, the second bevel gear group and the reciprocating screw, it drives the dust collection plate to move laterally back and forth through the transmission plate, so as to realize dynamic dust removal in the entire grinding and polishing area. D. Grinding and polishing: The reciprocating screw drives the polishing disc to rotate through the outer sleeve via the third bevel gear set, the second connecting rod and the fourth bevel gear set. Grinding and polishing are performed by the speed difference between the polishing disc and the thin rock and ore sheet to be processed on the vacuum suction cup.

[0019] Furthermore, in step D, the second linkage rod, through the cooperation of the fifth bevel gear set, the transmission screw and the sliding plate, causes the sliding plate to reciprocate along the axis of the transmission screw, and through the sliding plate, drives the rotating outer sleeve and the polishing disc to rotate while reciprocating axially, forming a compound motion, so as to uniformly grind and polish the thin rock and mineral slices on the polishing disc.

[0020] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention employs a vacuum pump, a vacuum box, and a movable vacuum disc to form a negative pressure dust removal mechanism. The movable mechanism drives the vacuum disc to reciprocate laterally, breaking the airflow blind spots inherent in traditional fixed single-point vacuuming. This allows for dynamic, all-area collection of fine rock dust generated during grinding and polishing operations, effectively preventing dust spillage and contamination of the laboratory environment. This eliminates the occupational health risk of respiratory illnesses caused by dust inhalation for operators. Simultaneously, by combining a storage tank, a pump, and a high-pressure nozzle to form an atomized cooling and lubrication system, the coolant is evenly sprayed in a mist onto the processed surface of the thin sheet. This promptly removes the frictional heat generated during grinding, preventing localized overheating that could lead to microcracks and surface erosion. This effectively ensures the structural integrity and surface quality of the rock and mineral thin sheets, thereby reducing the rate of defective products.

[0021] 2. This invention uses a rotary motor paired with a vacuum suction cup as a workpiece rotation and fixing mechanism. It utilizes negative pressure adsorption to firmly fix thin rock and mineral sheets. Compared to traditional clips and clamps, this effectively prevents displacement and vibration of the sheets during high-speed grinding, thus preventing sample chipping and breakage. Simultaneously, a protective assembly consisting of protective tubes and covers encloses and isolates various bevel gear sets, connecting rods, reciprocating screws, transmission screws, and other transmission components. This prevents grinding dust from entering the transmission gaps, avoiding component jamming and abnormal wear, and extending the equipment's service life. Furthermore, it isolates exposed moving parts, eliminating the risk of mechanical pinching and significantly improving the equipment's operational stability and safety.

[0022] 3. This invention uses a bevel gear set as the core of power distribution. A linkage transmission structure, consisting of a connecting rod, a reciprocating screw, and a transmission plate, synchronously transmits the power of the rotary motor to the dust collection disc, driving the disc to reciprocate along the grinding and polishing area. This structure achieves dynamic operation of the dust collection mechanism with a single power source, completely eliminating the dust collection blind spots of traditional fixed dust collection ports. It ensures timely and comprehensive dust collection throughout the grinding process, resulting in stable and reliable dust removal. The structure is simple and exhibits strong transmission coordination.

[0023] 4. This invention uses multiple sets of bevel gears to drive the polishing disc in a composite motion mode of rotation and axial reciprocating translation, overcoming the shortcomings of traditional equipment that only rotates and has a fixed polishing trajectory. Moreover, the composite motion can fully cover the thin sheet processing area, effectively avoiding problems such as polishing dead corners, local over-grinding, and surface scratch residue. In particular, it can achieve uniform grinding and polishing of rocks and minerals with complex composition and uneven hardness, significantly improving the flatness and smoothness of the thin sheet surface. This allows the finished product to directly meet the requirements of high-precision geological testing such as polarizing microscope observation and micro-area component analysis, reducing the need for secondary manual finishing processes and thus improving processing efficiency.

[0024] 5. This invention innovatively adopts a single rotary motor centralized power distribution scheme, relying on only one power source. Through the transmission distribution of multi-stage bevel gear sets and connecting rods, it synchronously realizes the rotation of rock and ore thin slices, the reciprocating movement of the dust collection disc, and the composite movement of the polishing disc, thus eliminating the need for multiple independent drive devices. Moreover, the entire set of equipment highly integrates dust removal, cooling, workpiece fixing, grinding and polishing functions, with a compact overall structure, reducing equipment manufacturing costs and operating energy consumption. Furthermore, the control logic is simple, making it suitable for various operating scenarios such as laboratories and field geological exploration, thus enhancing its practicality and promotional value.

[0025] In summary, this invention addresses the shortcomings of existing rock and mineral thin-slab grinding and polishing equipment, such as dust overflow, high-temperature damage to samples, uneven polishing, unstable workpiece fixation, and easy damage to transmission components. By combining movable negative pressure dust collection with atomized cooling and lubrication, it solves the problems of dust pollution and thermal damage to samples in traditional equipment. Furthermore, it stabilizes the workpiece with a vacuum suction cup, protects the transmission structure with protective components, and significantly improves the uneven polishing defect by utilizing the composite motion of the polishing disc's rotation and axial reciprocating motion. This invention comprehensively overcomes the aforementioned technical defects of existing rock and mineral thin-slab grinding and polishing equipment. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the composite grinding and polishing device for thin sections of rock and ore used in geological exploration according to the present invention; Figure 2 This is a schematic diagram of the dust removal mechanism of the present invention; Figure 3 This is a schematic diagram of the rotating mechanism and moving mechanism of the present invention, which include protective components; Figure 4 This is a schematic diagram of the rotating and moving mechanisms for removing the protective components according to the present invention. Figure 5 This is a schematic diagram of the grinding and polishing mechanism of the present invention; Figure 6 This is a partial half-sectional view of the present invention; In the diagram: 1-Base, 11-Guide groove, 12-First bracket, 13-Second bracket, 14-Third bracket, 15-Reinforcing rib, 2-Dust suppression mechanism, 21-Dust pump, 22-Dust collection box, 23-Dust collection disc, 24-Liquid storage tank, 25-Infusion pump, 26-High-pressure nozzle, 27-Nozzle holder, 3-Rotating mechanism, 31-Rotating motor, 32-Vacuum suction cup, 4-Moving mechanism, 41-First bevel gear set, 42-The... 43-Second bevel gear set, 44-Reciprocating screw, 45-Transmission plate, 46-Slider, 5-Grinding and polishing mechanism, 51-Polishing disc, 52-Third bevel gear set, 53-Second connecting rod, 54-Fourth bevel gear set, 55-Outer sleeve, 56-Fifth bevel gear set, 57-Transmission screw, 58-Sliding plate, 59-Sliding rod, 6-Controller, 7-Protective components, 71-Protective tube, 72-Protective cover. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this does not limit the present invention in any way. Any changes or improvements made based on the teachings of the present invention shall fall within the protection scope of the present invention.

[0028] like Figures 1 to 6 As shown, the geological exploration rock and ore thin-slice composite grinding and polishing device of the present invention includes a base 1, a dust collection mechanism 2, a rotating mechanism 3, a moving mechanism 4, a grinding and polishing mechanism 5, and a controller 6. The base 1 has a U-shaped or H-shaped structure, and the controller 6 is disposed on the outer side wall of the base 1. The dust suppression mechanism 2 includes a dust pump 21, a dust collection box 22, a dust collection disc 23, a liquid storage tank 24, an infusion pump 25, and a high-pressure nozzle 26. The dust pump 21 and the dust collection box 22 are fixedly mounted on the outer wall of the base 1. The dust collection disc 23 is slidably mounted on the lower part of the inner side of the base. The air inlet of the dust pump 21 is connected to the dust collection box 22 through a pipe, and the dust collection box 22 is connected to the dust collection disc 23 through a pipe. The liquid storage tank 24 and the infusion pump 25 are fixedly mounted on the outer wall of the base 1. The high-pressure nozzle 26 is located on the inner side of the base 1. The infusion pump 25 is connected to the liquid storage tank 24 and the high-pressure nozzle 26 through pipes. The rotating mechanism 3 includes a rotary motor 31 and a vacuum suction cup 32. The rotary motor 31 is fixedly mounted on the outer side wall of the base 1 and its output shaft is connected to the vacuum suction cup 32, which is rotatably mounted on the inner side wall of the base 1. The vacuum suction cup 32 is connected to a vacuum generating device and its suction cup surface faces the opposite inner side wall of the base 1. The moving mechanism 4 includes a first bevel gear set 41, a first connecting rod 42, a second bevel gear set 43, a reciprocating screw 44, and a transmission plate 45. The output shaft of the rotary motor 31 is connected to the first driving gear of the first bevel gear set 41. The first connecting rod 42 is vertically arranged and its two ends are respectively connected to the first driven gear of the first bevel gear set 41 and the second driving gear of the second bevel gear set 43. The reciprocating screw 44 is parallel to the output shaft of the rotary motor 31 and is rotatably arranged below the bottom plate of the base 1. One end of the reciprocating screw 44 is connected to the second driven gear of the second bevel gear set 43. The transmission plate 45 is arranged above the bottom plate inside the base 1. A guide groove 11 parallel to the reciprocating screw 44 is opened through the bottom plate of the base 1. The lower part of the transmission plate 45 slides through the guide groove 11 and is threadedly fitted onto the reciprocating thread section of the reciprocating screw 44. At least two dust collection discs 23 are fixedly arranged at intervals on the transmission plate 45. The grinding and polishing mechanism 5 includes a polishing disk 51 movably disposed inside the base 1 and facing the vacuum suction cup 32. The polishing shaft connected to the polishing disk 51 movably passes through the side wall of the base 1 and is connected to the rotating mechanism 3 for transmission. The dust pump 21, the infusion pump 25, the rotary motor 31, and the vacuum generator are electrically connected to the controller 6.

[0029] It should be noted that the dust suppression mechanism 2 utilizes negative pressure to form a powerful airflow collection zone in the core area of ​​the grinding and polishing operation, achieving timely collection of dust and impurities. This effectively solves the problem of dust overflow polluting the environment and endangering personnel's health during the grinding and polishing operation. At the same time, through the high-pressure atomization spray of the dust suppression mechanism 2, not only can the grinding and polishing process be lubricated to ensure the quality of the processed surface, but it can also avoid the defects of dry grinding that easily lead to overheating of the sample, resulting in micro-cracks and a decline in surface quality. This improves the surface integrity of the processed rock and mineral thin sheets and lays a solid foundation for the subsequent polishing process.

[0030] It should be noted that the vacuum chuck 32 utilizes vacuum adsorption to effectively solve the problem of displacement or vibration caused by uneven force during the grinding of rock and mineral thin sheets, thus ensuring the stability of the processing reference.

[0031] The transmission plate 45 extends to both sides of the guide groove 11 and is provided with multiple upward-opening suction discs 23 at intervals along the extension direction. A slider 46, which slides through the guide groove 11, is fixedly installed at the bottom end of the transmission plate 45. The slider 46 is threadedly fitted onto the reciprocating thread section of the reciprocating screw 44. The multiple suction discs 23 move laterally and reciprocally under the drive of the slider 46, overcoming the collection blind spots present in traditional fixed suction ports and ensuring that impurities generated during grinding are evenly removed.

[0032] The grinding and polishing mechanism 5 also includes a third bevel gear set 52, a second connecting rod 53, a fourth bevel gear set 54, and an outer sleeve 55. The end of the reciprocating screw 44 away from the first connecting rod 42 is connected to the third driving gear of the third bevel gear set 52. The second connecting rod 53 is vertically arranged and its two ends are respectively connected to the third driven gear of the third bevel gear set 52 and the fourth driving gear of the fourth bevel gear set 54. The outer sleeve 55 movably passes through the side wall of the base 1 and its inner end is coaxially connected to the polishing disc 51. The outer end of the outer sleeve 55 is connected to the fourth driven gear of the fourth bevel gear set 54.

[0033] A first bracket 12 and a second bracket 13 are fixedly installed on the two outer side walls of the base 1, respectively. The first connecting rod 42 rotates vertically through the first bracket 12, and the second connecting rod 53 rotates vertically through the second bracket 13.

[0034] The grinding and polishing mechanism 5 further includes a fifth bevel gear set 56, a transmission screw 57, a sliding plate 58, and a sliding rod 59. The transmission screw 57 is arranged parallel to one side of the outer sleeve 55 and has a reciprocating thread coaxially on its surface. The fifth driving gear of the fifth bevel gear set 56 is connected to the second connecting rod 53, and the fifth driven gear is connected to the transmission screw 57. The sliding plate 58 is threadedly fitted onto the reciprocating thread of the transmission screw 57. The side of the sliding plate 58 away from the transmission screw 57 is rotatably fitted into the annular groove on the outer sleeve 55. The sliding rod 59 extends coaxially from the end away from the polishing disc 51 into the outer sleeve 55 and is driven by a keyway. The end of the sliding rod 59 away from the polishing disc 51 is connected to the fourth driven gear of the fourth bevel gear set 54. By cooperating with the transmission screw 57 and the sliding plate 58, and with the sliding rod 59 and the outer sleeve 55, the problem of uneven sample surface processing caused by the single motion trajectory of traditional polishing equipment is effectively solved. It can drive the polishing disk 51 to rotate while performing axial reciprocating translation. This kind of compound motion avoids excessive local wear or polishing dead corners, improves the flatness and surface smoothness of rock and mineral thin slices, and ensures the quality of the final product.

[0035] The present invention also includes a protective component 7, which includes a protective tube 71 and a protective cover 72. The protective cover 72 is a long plate with an arc-shaped cross-section. The first bevel gear set 41, the first connecting rod 42, the second bevel gear set 43, the third bevel gear set 52, the second connecting rod 53, the fourth bevel gear set 54, and the fifth bevel gear set 56 are all movably wrapped inside the protective tube 71. The reciprocating threads of the reciprocating screw 44 and the transmission screw 57 are respectively movably wrapped with the protective cover 72 with an upper opening.

[0036] The high-pressure nozzle 26 is disposed above and / or at least on one side of the vacuum suction cup 32. The nozzle of the high-pressure nozzle 26 faces the polishing disk 51. The high-pressure nozzle 26 is connected to the inner wall of the base 1 through the nozzle holder 27. Multiple high-pressure nozzles 26 are spaced apart on the nozzle holder 27.

[0037] A third support 14 is also fixedly installed on the outer side wall of the base 1, and the rotary motor 31 is fixedly connected to the third support 14; a reinforcing rib plate 15 is fixedly installed at the connection between the inner side wall of the base 1 and the bottom plate.

[0038] It should be noted that the dust pump 21, dust box 22, dust collection disc 23, infusion pump 25, high-pressure nozzle 26, rotary motor 31, vacuum suction cup 32, each bevel gear set, reciprocating screw 44, polishing disc 51, transmission screw 57, protective tube 71, and protective cover 72 are all components or equipment in the prior art, or components or equipment that can be implemented by the prior art. The power supply, connection method, usage method, power source, fixing method, installation method, control method of each component and equipment, as well as the material and selection of various parameters of each accessory, are all common knowledge in the art, and therefore will not be described in detail.

[0039] The controller 6 is an industrial computer, PLC, single-board computer, or other existing control circuit.

[0040] like Figures 1 to 6 As shown, the method of using the geological exploration rock and ore thin-slice composite grinding and polishing device of the present invention includes the steps of accessory start-up, material feeding, dynamic dust removal, and grinding and polishing. The specific contents of each step are as follows: A. Accessory Start-up: The dust pump 21 and the liquid pump 25 are started by the controller 6, which causes the sealed dust box 22 to form a negative pressure and the dust collection plate 23 to form an airflow capture area in the grinding and polishing area. At the same time, the liquid pump 25 draws coolant from the storage tank 24 and sprays it onto the surface of the rock and mineral sheet through the high-pressure nozzle 26 for lubrication and cooling. B. Loading: Start the vacuum generator to create a negative pressure on the surface of the vacuum suction cup 32; then place the thin sheet of rock ore to be processed on the vacuum suction cup 32 and fix it with adsorption; C. Dynamic dust removal: The rotary motor 31 is started by the controller 6, which drives the rock and ore sheet to rotate with the vacuum suction cup 32. At the same time, the rotary motor 31 divides the power through the first bevel gear set 41, and drives the dust collection disc 23 to move laterally and reciprocally through the first connecting rod 42, the second bevel gear set 43 and the reciprocating screw 44, and through the transmission plate 45, so as to realize dynamic dust removal in the entire grinding and polishing area. D. Grinding and polishing: The reciprocating screw 44 drives the polishing disc 51 to rotate through the outer sleeve 55 via the third bevel gear set 52, the second connecting rod 53 and the fourth bevel gear set 54. Grinding and polishing are performed by the speed difference between the polishing disc 51 and the thin rock and ore sheet to be processed on the vacuum suction cup 32.

[0041] In step D, the second linkage 53, through the cooperation of the fifth bevel gear set 56, the transmission screw 57 and the sliding plate 58, causes the sliding plate 58 to reciprocate along the axis of the transmission screw 57. The sliding plate 58 drives the rotating outer sleeve 55 and the polishing disc 51 to rotate while reciprocating axially, forming a compound motion to uniformly grind and polish the thin rock and mineral slices on the polishing disc 51.

[0042] Example

[0043] S100: To avoid pollution of the working environment by fine dust generated during the grinding and polishing process and to prevent the potential harm of dust inhalation to the respiratory system of operators, the dust pump 21 and the liquid pump 25 are first started by the controller 6, so that a stable negative pressure state is quickly established inside the sealed dust collection box 22. This pressure difference is transmitted to the dust collection disc 23 through the flexible hose, forming a strong airflow capture zone in the core area of ​​the polishing operation, thereby timely sucking the dust and impurities generated by grinding into the dust collection box 22. At the same time, the liquid pump 25 is put into operation simultaneously, transporting the special grinding coolant in the storage tank 24 through the pipeline, and finally spraying it evenly in a mist form onto the rock and ore thin sheet to be processed area through the high-pressure nozzle 26. This not only plays a key lubricating role, ensuring the surface integrity during the grinding process, but also plays a cooling role, preventing the sample from generating micro-cracks due to local overheating, laying a good surface foundation for subsequent processes.

[0044] S200: First, the thin sheet of rock ore to be processed is placed on the vacuum chuck 32; to ensure grinding quality and operational safety, the vacuum generator is activated, so that the vacuum chuck 32 generates a strong adsorption force, which firmly locks the thin sheet of rock ore in the predetermined position of the vacuum chuck 32, preventing displacement or vibration during the grinding process.

[0045] S300: The rotary motor 31 is started by the controller 6, which drives the rock and ore sheet to rotate with the vacuum suction cup 32. During this process, the fully enclosed protective tube 71 and protective cover 72 wrap the transmission components, which not only prevents external dust from entering and causing mechanical wear and extending the service life of the equipment, but also further blocks the overflow path of internal dust. At the same time, the rotary motor 31 divides the power through the first bevel gear set 41, and drives the dust suction disc 23 to move laterally and reciprocally along the guide groove 11 through the first connecting rod 42, the second bevel gear set 43 and the reciprocating screw 44, thereby achieving full-area dynamic dust removal in the grinding and polishing area.

[0046] S400: The reciprocating screw 44, through the third bevel gear set 52, the second connecting rod 53, and the fourth bevel gear set 54, drives the outer sleeve 55 and the polishing disc 51 to rotate via the sliding rod 59. Grinding and polishing are performed by the speed difference between the polishing disc 51 and the thin rock and ore sheet to be processed on the vacuum suction cup 32. At the same time, the rotating second connecting rod 53, through the cooperation of the fifth bevel gear set 56, the transmission screw 57, and the sliding plate 58, causes the sliding plate 58 to reciprocate along the axis of the transmission screw 57. The sliding plate 58 drives the outer sleeve 55 and the polishing disc 51 to reciprocate axially on the sliding rod 59. The combined rotation of the outer sleeve 55 and the polishing disc 51 driven by the sliding rod 59 causes the polishing disc 51 and the thin rock and ore sheet on it to form a compound motion, which uniformly grinds and polishes the thin rock and ore sheet on the polishing disc 51.

[0047] Through the combined motion mechanism of the dust collection mechanism 2 and the polishing disc 51, the all-round dynamic capture of grinding dust and the uniform polishing of the surface of the rock and mineral thin sheet sample are achieved.

[0048] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A composite grinding and polishing device for thin sections of rocks and minerals used in geological exploration, characterized in that: It includes a base (1), a dust collection mechanism (2), a rotating mechanism (3), a moving mechanism (4), a grinding and polishing mechanism (5), and a controller (6). The base (1) has a U-shaped or H-shaped structure, and the controller (6) is located on the outer wall of the base (1). The dust suppression mechanism (2) includes a dust pump (21), a dust collection box (22), a dust collection disc (23), a liquid storage tank (24), an infusion pump (25), and a high-pressure nozzle (26). The dust pump (21) and the dust collection box (22) are fixedly installed on the outer wall of the base (1). The dust collection disc (23) is slidably installed on the lower part of the inner side of the base. The air inlet of the dust pump (21) is connected to the dust collection box (22) through a pipe. The dust collection box (22) is connected to the dust collection disc (23) through a pipe. The liquid storage tank (24) and the infusion pump (25) are fixedly installed on the outer wall of the base (1). The high-pressure nozzle (26) is installed on the inner side of the base (1). The infusion pump (25) is connected to the liquid storage tank (24) and the high-pressure nozzle (26) through pipes respectively. The rotating mechanism (3) includes a rotating motor (31) and a vacuum suction cup (32). The rotating motor (31) is fixedly installed on the outer wall of the base (1) and its output shaft is connected to the vacuum suction cup (32) rotatably installed on the inner wall of the base (1). The vacuum suction cup (32) is connected to the vacuum generating device and its suction cup surface faces the opposite inner wall of the base (1). The moving mechanism (4) includes a first bevel gear set (41), a first connecting rod (42), a second bevel gear set (43), a reciprocating screw (44), and a transmission plate (45). The output shaft of the rotary motor (31) is connected to the first driving gear of the first bevel gear set (41). The first connecting rod (42) is vertically arranged and its two ends are respectively connected to the first driven gear of the first bevel gear set (41) and the second driving gear of the second bevel gear set (43). The reciprocating screw (44) is parallel to the output shaft of the rotary motor (31) and rotates. The reciprocating screw (44) is located below the base plate of the base (1). One end of the reciprocating screw (44) is connected to the second driven gear of the second bevel gear set (43). The transmission plate (45) is located above the base plate inside the base (1). A guide groove (11) parallel to the reciprocating screw (44) is opened through the base plate of the base (1). The lower part of the transmission plate (45) slides through the guide groove (11) and is threadedly fitted onto the reciprocating thread section of the reciprocating screw (44). At least two dust collection discs (23) are fixedly arranged at intervals on the transmission plate (45). The grinding and polishing mechanism (5) includes a polishing disc (51) movably disposed inside the base (1) and facing the vacuum suction cup (32). The polishing shaft connected to the polishing disc (51) movably passes through the side wall of the base (1) and is connected to the rotating mechanism (3) for transmission. The dust pump (21), infusion pump (25), rotary motor (31) and vacuum generator are electrically connected to the controller (6).

2. The composite grinding and polishing device for thin sections of rock and ore used in geological exploration according to claim 1, characterized in that: The transmission plate (45) extends to both sides of the guide groove (11) and is provided with multiple dust collection discs (23) with upward openings at intervals along the extension direction. The bottom end of the transmission plate (45) is fixedly provided with a slider (46) that slides through the guide groove (11). The slider (46) is threadedly fitted onto the reciprocating thread section of the reciprocating screw (44).

3. The composite grinding and polishing device for thin sections of rocks and minerals for geological exploration according to claim 1, characterized in that: The grinding and polishing mechanism (5) also includes a third bevel gear set (52), a second connecting rod (53), a fourth bevel gear set (54), and an outer sleeve (55). The reciprocating screw (44) is connected to the third driving gear of the third bevel gear set (52) at one end away from the first connecting rod (42). The second connecting rod (53) is vertically arranged and its two ends are respectively connected to the third driven gear of the third bevel gear set (52) and the fourth driving gear of the fourth bevel gear set (54). The outer sleeve (55) movably passes through the side wall of the base (1) and its inner end is coaxially connected to the polishing disc (51). The outer end of the outer sleeve (55) is connected to the fourth driven gear of the fourth bevel gear set (54).

4. The composite grinding and polishing device for thin sections of rock and ore used in geological exploration according to claim 3, characterized in that: The base (1) is fixedly provided with a first bracket (12) and a second bracket (13) on its two outer side walls respectively. The first connecting rod (42) rotates vertically through the first bracket (12), and the second connecting rod (53) rotates vertically through the second bracket (13).

5. The composite grinding and polishing device for thin sections of rock and ore used in geological exploration according to claim 3, characterized in that: The grinding and polishing mechanism (5) further includes a fifth bevel gear set (56), a transmission screw (57), a sliding plate (58), and a sliding rod (59). The transmission screw (57) is arranged parallel to one side of the outer sleeve (55) and has a reciprocating thread coaxially on its surface. The fifth driving gear of the fifth bevel gear set (56) is connected to the second connecting rod (53), and the fifth driven gear is connected to the transmission screw (57). The sliding plate (58) is threadedly fitted onto the reciprocating thread of the transmission screw (57). The side of the sliding plate (58) away from the transmission screw (57) is rotatably fitted into the annular groove on the outer sleeve (55). The sliding rod (59) extends coaxially from the end away from the polishing disc (51) into the outer sleeve (55) and is driven by a keyway. The end of the sliding rod (59) away from the polishing disc (51) is connected to the fourth driven gear of the fourth bevel gear set (54).

6. The composite grinding and polishing device for thin sections of rock and ore used in geological exploration according to claim 5, characterized in that: It also includes a protective component (7), which includes a protective tube (71) and a protective cover (72). The protective cover (72) is a long plate with an arc-shaped cross-section. The first bevel gear set (41), the first connecting rod (42), the second bevel gear set (43), the third bevel gear set (52), the second connecting rod (53), the fourth bevel gear set (54), and the fifth bevel gear set (56) are all movably wrapped in the protective tube (71). The reciprocating screw (44) and the transmission screw (57) are respectively movably wrapped with the protective cover (72) with an upper opening.

7. The composite grinding and polishing device for thin sections of rock and ore used in geological exploration according to any one of claims 1 to 6, characterized in that: The high-pressure nozzle (26) is positioned above and / or on at least one side of the vacuum suction cup (32). The nozzle of the high-pressure nozzle (26) faces the polishing disc (51). The high-pressure nozzle (26) is connected to the inner wall of the base (1) via a nozzle holder (27). Multiple high-pressure nozzles (26) are spaced apart on the nozzle holder (27).

8. The composite grinding and polishing device for thin sections of rocks and minerals for geological exploration according to claim 7, characterized in that: A third bracket (14) is fixedly installed on the outer side wall of the base (1), and the rotary motor (31) is fixedly connected to the third bracket (14); a reinforcing rib plate (15) is fixedly installed at the connection between the inner side wall of the base (1) and the bottom plate.

9. A method of using the composite grinding and polishing device for thin sections of rocks and minerals for geological exploration as described in any one of claims 1 to 8, characterized in that: The process includes starting the attachments, loading materials, dynamic dust removal, and grinding and polishing. The specific details of each step are as follows: A. Attachment Start-up: The dust pump (21) and the infusion pump (25) are started by the controller (6), which causes the sealed dust box (22) to form a negative pressure and the dust collection plate (23) to form an airflow trapping area in the grinding and polishing area. At the same time, the infusion pump (25) draws the coolant in the storage tank (24) and sprays it onto the surface of the rock and mineral sheet through the high-pressure nozzle (26) for lubrication and cooling. B. Loading: Start the vacuum generator to create a negative pressure on the surface of the vacuum suction cup (32); then place the thin sheet of rock ore to be processed on the vacuum suction cup (32) and fix it with adsorption; C. Dynamic dust removal: The rotary motor (31) is started by the controller (6) to drive the rock and ore sheet to rotate with the vacuum suction cup (32); at the same time, the rotary motor (31) divides the power through the first bevel gear set (41), and drives the dust collection disc (23) to move laterally and reciprocally through the transmission plate (45) via the first connecting rod (42), the second bevel gear set (43) and the reciprocating screw (44), thereby realizing dynamic dust removal throughout the grinding and polishing area; D. Grinding and polishing: The reciprocating screw (44) drives the polishing disc (51) to rotate through the outer sleeve (55) via the third bevel gear set (52), the second connecting rod (53) and the fourth bevel gear set (54). Grinding and polishing are performed by the speed difference between the polishing disc (51) and the thin rock and ore sheet to be processed on the vacuum suction cup (32).

10. The method of using the composite grinding and polishing device for thin sections of rocks and minerals for geological exploration according to claim 9, characterized in that: In step D, the second linkage rod (53) works with the fifth bevel gear set (56), the transmission screw (57) and the sliding plate (58) to make the sliding plate (58) reciprocate along the axis of the transmission screw (57). The sliding plate (58) drives the rotating outer sleeve (55) and the polishing disc (51) to rotate while reciprocating axially, forming a compound motion to uniformly grind and polish the thin rock and mineral pieces on the polishing disc (51).

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