CN218225973U - Full-automatic high-precision rock grinding and polishing sample preparation device - Google Patents

Abstract

The utility model discloses a full-automatic high accuracy rock grinds and throws system appearance device relates to the rock material grinds and throws system appearance technical field. The automatic polishing machine mainly comprises a workbench, an automatic control system and a grinding and polishing level detection system. The automatic control system controls the grinding and polishing vertical pressure and the grinding and polishing thickness, after the rock sample is ground and polished once, the rock sample is adjusted through a rotating frame in the automatic control system to switch and finely adjust the position between the grinding and polishing work area and the grinding and polishing level detection area, the single grinding and polishing level of the rock sample is detected through the grinding and polishing level detection system, classification and screening are carried out, invalid samples are removed in time, and the sample preparation efficiency is improved. The utility model provides a present rock material grind and throw system appearance accuracy control difficulty, grind and throw the problem that horizontal detection efficiency is low, can realize full-automatic, high accuracy ground control rock material and grind and throw system appearance.

Description

Full-automatic high-precision rock grinding and polishing sample preparation device

Technical Field

The utility model relates to a rock mechanics and tribology technical field, in particular to rock material grinds and throws system appearance technical field, specifically is a full-automatic high accuracy rock grinds and throws system appearance device.

Background

With the rapid development of test equipment and microscopic analysis techniques, rock micro-motion tribology has gained extensive attention and intensive research. In general, the scheme for studying the micro-motion tribology characteristics of rock is as follows: firstly, cutting a rock material, cutting an irregular rock material into a regular shape, and then grinding and polishing the surface to be detected of the optimized rock material, so as to research the micro-motion tribology characteristics of the rock material based on the same surface roughness and flatness. However, since the rock material is of many kinds, has a complicated composition, and has strong anisotropy, it is difficult to grind and polish the rock material with high precision. For example, the main component of quartz is oxide mineral, the Mohs hardness is 7, a flaky structure is easy to fall off in the polishing process, and the polishing flatness is influenced to a certain extent; the fluorite mainly contains fluoride minerals, the Mohs hardness is only 4, the abrasion speed is high, and the fluorite sample is easy to be abraded beyond the limit after being abraded for a long time; therefore, different rock materials have different specific requirements for high-precision grinding and polishing samples.

At present, research and development of a special rock material grinding and polishing sample preparation device is not seen, the existing rock micro-motion tribology characteristic research still adopts a metallographic grinding and polishing machine to prepare samples, and common metallographic grinding and polishing machines are divided into manual type and automatic type according to operation types. A manual metallographic grinding and polishing machine needs a tester to hold a to-be-tested sample to be placed on a grinding and polishing disc rotating at a high speed for grinding and polishing, and due to the fact that vertical load is applied manually, loading is unstable, unbalance loading is easy to generate, and the damage of sample flying caused by the fact that the tester flies out of the hand exists; the automatic metallographic grinding and polishing machine adopts a mechanical control system to replace manual grinding and polishing procedures, but the automatic metallographic grinding and polishing machine adopts a sample chuck to mount a piece to be tested, so that the processing steps of the piece to be tested are multiple, the processing steps are unnecessary for rock materials which are easy to obtain and cut, machine and form, and the automatic metallographic grinding and polishing machine still does not consider how to control the grinding and polishing thickness of the sample to be tested.

Furthermore, the polishing process and the polishing level detection of the rock sample are usually performed separately, resulting in a lot of time wasted in mounting and dismounting the rock sample and a disturbance to the sample. At present, two common grinding and polishing level detection modes are available, which are respectively as follows: (1) The method comprises the following steps of (1) evaluating the grinding and polishing level by observing the mirror effect or touch sensory roughness of a grinding and polishing surface of a sample, wherein the method is greatly influenced by human factors and has low reliability; (2) The optical microscope detection method is used for analyzing the grinding and polishing level of a sample under an optical microscope, is complex in operation, long in time consumption and low in efficiency, and is not particularly suitable for the field of grinding and polishing sample preparation of rock materials needing large amount of detection. Therefore, a more efficient grinding and polishing level detection mode is considered and is organically combined with the grinding and polishing process, the grinding and polishing sample preparation device suitable for high-precision control of grinding and polishing of the rock sample and high-efficiency detection of the grinding and polishing level is developed, and the grinding and polishing sample preparation device has the remarkable beneficial effect.

Based on this, the utility model provides a full-automatic high accuracy rock grinds throws system appearance device has solved present rock material and has ground and throw system appearance accuracy control difficulty, grind and throw the problem that level detection efficiency is low, can realize that the rock sample is ground and thrown, the grinding and throwing level that detects the rock sample high-efficiently to the control rock sample ground of high accuracy, helps improving the system appearance efficiency of rock material micro-motion tribology characteristic research.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a system appearance device is thrown to full-automatic high accuracy rock mill solves present rock material and grinds and throws system appearance accuracy control difficulty, grind and throw the problem that level detection efficiency is low, can realize that rock material is full-automatic, high accuracy, efficient to grind and throw system appearance.

In order to realize the above-mentioned purpose, the utility model provides a full-automatic high accuracy rock grinds and throws system appearance device mainly includes the workstation automatic control system with grind and throw horizontal detection system triplex, specifically include following structure.

The workstation includes the base, install on the base the controller with grind and throw the dish, grind and throw the dish and have around the drainage chamber, upper portion are equipped with the protection casing, the base is seted up the inlet tube with the drain pipe, advance water piping connection the water-cooled tube, the drain pipe intercommunication drainage chamber.

Further, the controller can adjust the rotation speed and the polishing time of the polishing disc, the movement of the rotating frame, the loading mode of the loading motor, the lifting of the transmission shaft and the test parameters of the high-precision laser contourgraph.

Furthermore, the controller can be externally connected with a computer and controlled by computer software.

Furthermore, the diameter of the grinding and polishing disc is 25cm, grinding abrasive paper or polishing cloth is arranged on the upper surface of the grinding and polishing disc, and the grinding and polishing disc generates grinding and polishing force through rotation to grind and polish the rock sample contacted with the upper portion of the grinding and polishing disc.

Furthermore, the water-cooling pipe is located inside the protective cover, the water-cooling pipe is used for providing cold water for the friction part for cooling treatment in the grinding and polishing process, and the water-cooling pipe supplies water through the water inlet pipe.

Furthermore, the protection casing passes through the rotatory installation of bottom helicitic texture on the base, protection casing top design splashproof water structure, the splashproof water structure of protection casing is the eaves structure of the inside extension in top, the protection casing sets up grind the dish periphery of throwing, the protection casing is used for blockking splashes such as water, granule that the process of throwing produced, the safety of protection equipment subassembly and test process.

Furthermore, the drainage cavity is a cylinder-like cavity arranged around the grinding and polishing disc, and is used for collecting splashes such as water, particles and the like generated in the grinding and polishing process and discharging the splashes from the drainage cavity through the drainage pipe.

The automatic control system comprises the rotating frame, the loading motor is installed at the top end of the rotating frame, the loading motor is connected with the force and displacement integrated sensor, the transmission shaft and the clamp holder, the number of the transmission shafts is four, the transmission shafts can vertically transmit, and the transmission shafts are provided with the protection disc and the protection panel.

Furthermore, the rotating mode of the rotating frame comprises translation, rotation and inclination, and the rotating frame can be rotated to drive the holder to be switched back and forth and finely adjusted and positioned between the grinding and polishing disc and the high-precision laser profiler.

Furthermore, the force and displacement integrated sensor is respectively arranged between the four transmission shafts and the loading motor, the clamp holder is respectively arranged at the bottom of each of the four transmission shafts, and the four transmission shafts are arranged in a central symmetry manner.

Further, the holder is used for installing the rock sample, and the force and displacement integrated sensor is used for detecting real-time vertical load and vertical displacement of the rock sample and sending detection data to the controller or an external computer.

Furthermore, the loading motor provides an independent loading mode for the four transmission shafts, the four transmission shafts have an independent lifting process, and the lifting or descending distances of the four transmission shafts can be different.

Furthermore, the transmission shaft is adjusted to lift through the controller, and the transmission shaft descends to drive the clamp holder and the rock sample to descend to the working area of the grinding and polishing disc, so that the rock sample is ground and polished.

Further, the transmission shaft is vertically installed, and the transmission shaft is provided with the protection disc and the protection panel and used for preventing the transmission shaft from inclining in the test process.

Further, four rock samples can be ground to the same thickness by arranging that the four transmission shafts have the same maximum descending height.

Further, the holder comprises two clamping jaws and one positioning block, the rock sample is arranged between the two clamping jaws, and the clamping jaws provide clamping force for the rock sample.

Furthermore, the clamping jaw is provided with a clamping plane, a positioning plane and an arc surface, the positioning block is provided with a positioning plane and an arc surface, and the positioning plane of the positioning block is mutually contacted with the positioning plane of the clamping jaw.

Furthermore, the locating piece is used for preventing the rock sample from flying due to overlarge horizontal friction force when the rock sample is ground and polished, and potential safety hazards are generated to equipment and operators.

Grind and throw horizontal detection system and include high accuracy laser profile appearance, high accuracy laser profile appearance sets up on the base, the rotating turret is rotatory adjustable the holder removes grind and throw a set work area with high accuracy laser profile appearance measuring range, high accuracy laser profile appearance detects the 3D profile, roughness, mar, hole and the crack information of rock sample mill polished surface after grinding and throwing, and feed back to the controller.

Furthermore, the measurement accuracy of the high-accuracy laser profiler is 1 micron, the vertical measurement range of the high-accuracy laser profiler is 50 millimeters, and the high-accuracy laser profiler can identify the micron-sized 3D profile and defect information of the polished surface of the rock sample.

Furthermore, by identifying the 3D profile, the flatness, the scratches, the holes and the crack information of the grinding and polishing surface of the rock sample, the grinding and polishing level of the rock sample can be further divided into three types of high quality, effective and ineffective, the ineffective sample is removed, the rock sample with the same grinding and polishing level is selected to carry out subsequent tests, the grinding and polishing level of the rock sample is controlled in a full-automatic and high-precision manner, and the sample preparation efficiency of the rock sample is improved.

The embodiment of the utility model provides a following beneficial effect has been brought.

The utility model provides a present rock material grind throw system appearance accuracy control difficulty, grind throw the problem that level detection efficiency is low, realized rock material grind throw system appearance full-automatic, high accuracy, high efficiency control.

The utility model provides a prior art not effective control rock material grinds the problem of throwing system appearance thickness, can realize preparing the rock sample of size unanimity basically.

The utility model discloses can with the rock sample grinds the level of throwing and divide into high-quality, effective, invalid three types, rejects invalid sample to select same mill to throw the level follow-up experiment is carried out to the rock sample, is favorable to improving the system appearance efficiency is thrown in the mill of rock sample.

The present invention will be further described with reference to the accompanying drawings and the detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description. Or may be learned by practice of the invention.

Drawings

The accompanying drawings, which form a part of the disclosure, are included to assist in understanding the disclosure, and the description provided herein and the accompanying drawings, which are related thereto, are intended to explain the disclosure, but do not constitute an undue limitation on the disclosure.

The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.

FIG. 1 is a schematic diagram of the main components of a full-automatic high-precision rock grinding and polishing sample preparation device;

FIG. 2 is a schematic view of a polishing test zone;

FIG. 3 is a schematic view of a sample holding apparatus;

FIG. 4 is a schematic view of a layout of a transmission shaft;

FIG. 5 is a schematic view of a gripper;

FIG. 6 is a schematic view of polishing level detection.

In the figure: 1-a base, 2-a controller, 3-a grinding and polishing disc, 4-a drainage cavity, 5-a protective cover, 6-a water inlet pipe, 7-a drainage pipe, 8-a water cooling pipe, 9-a rotating frame, 10-a loading motor, 11-a force displacement integrated sensor, 12-a transmission shaft, 13-a clamp holder, 14-a clamping jaw, 15-a positioning block, 16-a high-precision laser profiler, 17-a protective disc, 18-a rock sample and 19-a protective panel.

Detailed Description

The present invention will be described more fully with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. Before the present invention is described with reference to the accompanying drawings, it should be noted that: the technical solutions and features provided in the present invention in each part including the following description may be combined with each other without conflict.

Furthermore, the embodiments of the invention described in the following description are generally only some embodiments, but not all embodiments of the invention. Therefore, based on the embodiments of the present invention, all other embodiments obtained by a person having ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

With respect to the terms and units of the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related art are intended to cover non-exclusive inclusions.

As shown in fig. 1 to 6, the full-automatic high-precision rock grinding and polishing sample preparation device mainly comprises three parts, namely a workbench, an automatic control system and a grinding and polishing level detection system, and specifically comprises: 1-base, 2-controller, 3-polishing disc, 4-drainage cavity, 5-protective cover, 6-water inlet pipe, 7-drainage pipe, 8-water cooling pipe, 9-rotating frame, 10-loading motor, 11-force displacement integrated sensor, 12-transmission shaft, 13-gripper, 14-clamping jaw, 15-positioning block, 16-high precision laser profilometer, 17-protective disc, 18-rock sample, and 19-protective panel.

As shown in fig. 1 and 2, the work table includes: the controller 2, the polishing disc 3 and the protective cover 5 are arranged on the base 1; the base 1 is provided with the water inlet pipe 6 and the water outlet pipe 7; the protective cover 5 is arranged at the upper part of the grinding and polishing disc 3, and the periphery of the grinding and polishing disc 3 is provided with the drainage cavity 4; the water inlet pipe 6 is connected with the water cooling pipe 8, the water cooling pipe 8 penetrates through the water discharge cavity 4 to the inside of the protective cover 5, and the water discharge cavity 4 is communicated with the water discharge pipe 7; the controller 2 can be externally connected with a computer, various functions are controlled through computer software, and the controller 2 controls working parameters of the rotating frame 9, the loading motor 10, the force and displacement integrated sensor 11, the transmission shaft 12 and the high-precision laser profiler 16 and collects detection data.

As shown in fig. 1, the automatic control system comprises the rotating frame 9, the loading motor 10 is mounted at the top end of the rotating frame 9, and the protection panel 19 is connected below the loading motor 10; as shown in fig. 3 and 4, four transmission shafts 12 are arranged inside the protection panel, the four transmission shafts 12 are arranged in a central symmetry manner relative to the protection disc 17, one force displacement integral sensor 11 is arranged above each transmission shaft 12, and one clamper 13 is connected below each transmission shaft 12; as shown in fig. 3 and 5, each of said grippers 13 comprises two of said jaws 14 and one of said positioning blocks 15, said jaws 14 and said positioning blocks 15 mounting said rock specimen 18 therebetween.

As shown in fig. 1 and 6, the grinding and polishing level detection system comprises the high-precision laser profiler 16, the high-precision laser profiler 16 is arranged on the base 1, the rotating frame 9 is rotationally adjustable, the clamper 13 rotates to the working area of the grinding and polishing disk 3 and the measuring range of the high-precision laser profiler 16, and the high-precision laser profiler 16 identifies the grinding and polishing surface 3D profile, the flatness, the scratches, the holes and the crack information of the rock sample 18 in the measuring range.

The specific implementation is as follows.

Rock material pretreatment and sample installation: before grinding and polishing, cutting and processing the irregular rock material into the rock sample 18 with a regular cube shape; selecting a relatively flat surface with few defects of the rock sample 18 as a grinding and polishing surface; grinding the bottom surface of the rock sample 18: as shown in fig. 3 and 5, the clamping jaws 14 are opened, the bottom surface of the rock sample 18 is downwards installed on the clamping device 13, the rock sample 18 is controlled to move to the working area of the grinding and polishing disc 3 through the controller 2, the grinding and polishing disc 3 is started, and the bottom surface of the rock sample 18 is ground and leveled on the grinding and polishing disc 3; installation of the rock specimen 18: and opening the clamping jaw 14, mounting the bottom surface of the rock sample 18 upwards on the clamp holder 13, controlling one side of the rock sample 18 to abut against the positioning block 15, preventing the sample from flying in the grinding and polishing process, and mounting four rock samples 18 of the same type in the same grinding and polishing test group.

Setting grinding and polishing parameters: setting the vertical pressure of the loading motor 10 according to the type of the parent material rock of the rock sample 18, wherein the four rock samples 18 are subjected to the same vertical pressure; setting the maximum descending height of the transmission shaft 12, wherein the transmission shaft 12 does not descend after reaching the maximum descending height, so that the rock sample 18 can be ground and polished to the same thickness, and the grinding and polishing overrun is prevented; setting the rotation speed and the rotation time of the grinding and polishing disk 3 according to the type of the parent material rock of the rock sample 18; driving the rotating frame 9, so that the four rock test samples 18 are arranged in a centrosymmetric manner about the circle center of the grinding and polishing disk 3, and the four rock test samples 18 are subjected to the same grinding and polishing force; the drive shaft 12 is driven down until the rock sample 18 comes into contact with the abrasive polishing disc 3.

Carrying out a single grinding and polishing test: as shown in fig. 2, the water cooling pipe 8 is opened to provide cold water for cooling the polishing area, and the drain pipe 7 is opened to drain impurities such as water, particles and the like in the drain cavity 4 from the drain cavity 4; the grinding and polishing disc 3 starts to work according to preset grinding and polishing parameters, and the rock test sample 18 bears a preset vertical pressure to be in contact with the grinding and polishing disc 3 for grinding and polishing; and finishing single grinding and polishing after the transmission shaft 12 reaches the maximum descending height.

Detecting the single grinding and polishing level: driving the rotating frame 9 until the rock sample 18 moves to the measuring range of the high-precision laser profile instrument 16; as shown in fig. 6, the high-precision laser profiler 16 starts to detect the 3D profile of the polished surface of the rock sample 18 and identify various defects, such as flatness, scratches, holes, cracks, etc., and according to the 3D profile of the polished surface of the rock sample 18 and defect information fed back by the high-precision laser profiler 16, the polishing level of the rock sample 18 is divided into three categories, namely high quality, valid and invalid, the invalid sample is removed, and the next polishing is continued according to the categories.

And replacing grinding abrasive paper or polishing cloth with different meshes according to requirements, and repeating the steps of single grinding and polishing test and single grinding and polishing level detection until the high-precision laser profiler 16 detects that the grinding and polishing level of the rock sample 18 meets the requirements, so that the full-automatic, high-efficiency and high-precision grinding and polishing sample preparation of the rock sample 18 is realized.

After the polishing test is finished, as shown in fig. 2, the polishing disc 3, the drainage cavity 4 and the protective cover 5 are washed, so that the use functions of all structural parts are prevented from being damaged by impurities such as residual water, particle abrasion substances and the like.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (7)

1. The full-automatic high-precision rock grinding and polishing sample preparation device is characterized by mainly comprising a workbench, an automatic control system and a grinding and polishing level detection system; the workbench comprises a base, a controller and a grinding and polishing disk are mounted on the base, a water discharge cavity is formed in the periphery of the grinding and polishing disk, a protective cover is arranged at the upper part of the grinding and polishing disk, the base is provided with a water inlet pipe and a water discharge pipe, the water inlet pipe is connected with a water cooling pipe, and the water discharge pipe is communicated with the water discharge cavity; the automatic control system comprises a rotating frame, wherein a loading motor is installed at the top end of the rotating frame, the loading motor is connected with a force and displacement integrated sensor, four transmission shafts and a clamp holder, the transmission shafts can vertically transmit, and each transmission shaft is provided with a protection disc and a protection panel; grind and throw horizontal detection system includes high accuracy laser profile appearance, high accuracy laser profile appearance sets up on the base, the rotating turret is rotatory adjustable the holder removes grind and throw a set work area with high accuracy laser profile appearance measuring range, high accuracy laser profile appearance detects 3D profile, roughness, mar, hole and the crack information of the face of polishing after the rock sample grinds and throws, and feeds back to the controller.

2. The full-automatic high-precision rock grinding and polishing sample preparation device according to claim 1, wherein the controller adjusts the rotation speed and grinding and polishing time of the grinding and polishing disk, the movement of the rotating frame, the loading mode of the loading motor, the lifting of the transmission shaft and the test parameters of the high-precision laser profiler; the controller can be externally connected with a computer and controlled by computer software.

3. The full-automatic high-precision rock grinding and polishing sample preparation device according to claim 1, wherein the protective cover is rotatably mounted on the base through a bottom thread structure, the water cooling pipe is arranged inside the protective cover, and a water splashing prevention structure is designed at the top of the protective cover.

4. The full-automatic high-precision rock grinding and polishing sample preparation device according to claim 1, wherein the rotating manner of the rotating frame comprises translation, rotation and inclination; the force and displacement integrated sensor is arranged between the transmission shaft and the loading motor, and the clamp holder is installed at the bottom of the transmission shaft; the four transmission shaft mounting positions are arranged in a central symmetry mode.

5. The full-automatic high-precision rock grinding and polishing sample preparation device according to claim 1, wherein the loading motor provides an independent loading mode for four transmission shafts, and the four transmission shafts have independent lifting processes.

6. The fully automatic high precision rock sample grinding and polishing device of claim 1, wherein the holder comprises two jaws and a positioning block, and the rock sample to be ground and polished is installed between the two jaws.

7. The full-automatic high-precision rock grinding and polishing sample preparation device according to claim 1, wherein the measurement precision of the high-precision laser profiler is 1 micron, and the vertical measurement range of the high-precision laser profiler is 50 millimeters.

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