CN114878279B - A rock sample production device and its production method - Google Patents

Abstract

The invention discloses a rock sample making device, which includes a cutting equipment system, a laser scanning system and a computer control system; the cutting equipment system includes a rock block fixing system and a water jet cutting system, and the rock block fixing system includes a The horizontal fixed plate and four horizontal moving ends, the four horizontal moving ends are provided with vertical moving ends, the four vertical moving ends are provided with vertical fixed plates, and the vertical fixed plates are provided with several vertical moving ends Straight fixed plate and telescopic fixed head extending inward, horizontal fixed plate is provided with several telescopic fixed heads extending vertically upwards, the rear end of the telescopic fixed head is provided with a load sensor; this scheme can realize different specifications and shapes of rock test The production of samples can reduce the manual intervention in the production of rock samples, and improve the efficiency and accuracy of sample preparation while ensuring the safety of sample preparation personnel.

Description

A rock sample production device and its production method

technical field

The invention relates to the technical field of rock sample production, in particular to a rock sample production device and a production method thereof.

Background technique

In the field of geotechnical engineering experiments, for the preparation of rock samples, the traditional technology mainly adopts the cutting machine combined with circular high-speed drilling sampling. large, and there will be a large error at the same time, resulting in a low qualified yield of the sample; at the same time, in the cutting process, in order to reduce the wear of the drill bit, a large amount of water will be used for cooling and lubrication, resulting in a very high water retention rate of the sample. changes, and even lead to the disintegration of some samples with different lithology, which seriously interferes with the objectivity of the experiment.

In the traditional rock sample preparation process, drill bits or cutting discs are generally used for cutting, which often produces a lot of smoke and dust or noise; in addition, manual close-range operation is required, which can easily cause injury and hearing loss to the sample preparation personnel. wait.

In the mechanical experiment of rock structural planes, since the structural planes of rocks are different, if the original rock samples are used for structural plane shear experiments, because the structural planes of rocks in nature are very different, it is often impossible to prepare the same structural planes. At the same time, if similar materials are used for sample pouring, such as cement mortar to prepare samples, but because similar materials cannot accurately reflect the physical properties of the original rock, the experimental error will be large.

Contents of the invention

Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a rock sample manufacturing device and a manufacturing method thereof, which solves the problems in the prior art that preparation of rock samples of different specifications and shapes is difficult and has large preparation errors.

To achieve the above object, the technical solution adopted in the present invention is:

A rock sample making device is provided, which includes a cutting equipment system, a laser scanning system and a computer control system; the cutting equipment system includes a rock block fixing system and a water jet cutting system, and the rock block fixing system includes a horizontal fixing The upper end of the horizontal fixed plate is provided with an anti-corrosion plate, the horizontal fixed plate is in a square shape, and the outer sides of the four sides of the horizontal fixed plate are provided with horizontal moving ends, and the moving direction of the horizontal moving end is parallel to the vertical line of the corresponding side of the horizontal fixed plate , the four horizontal moving ends are provided with vertical moving ends, the four vertical moving ends are provided with vertical fixing plates parallel to the four sides of the horizontal fixing plate respectively, and the vertical fixing plates are provided with several vertical fixing plates perpendicular to the vertical The fixed plate and the telescopic fixed head extending inwardly, the horizontal fixed plate is provided with several telescopic fixed heads extending vertically upwards, and the rear end of the telescopic fixed head is provided with a load sensor; the computer control system includes a controller, a laser scanning system, a water The knife cutting system, the horizontal moving end, the vertical moving end and the load sensor are all electrically connected with the controller.

The beneficial effects of adopting the above-mentioned technical scheme are: this scheme can accurately fix rock blocks or rock cores of different shapes and sizes collected in the field according to preset positions, and carry out precise position adjustment through the computer control system, wherein the telescopic fixed head Under the control of the controller, the rock block or core can be fixed according to the predetermined load. The telescopic fixed head can move in a small range. to adapt to rock blocks of different sizes and shapes; at the same time, through the displacement height difference between the vertical moving ends, the fine adjustment of the rock block angle can be realized, and the water jet cutting system can be used to achieve the purpose of cutting rock formations with different angles .

Further, the waterjet cutting system includes a liquid supplier, a filter, a pump, an accumulator, a liquid controller, a high-pressure liquid delivery pipe, and a nozzle connected in sequence. Vertically downward, the nozzle is set on the X-direction mobile control end, the X-direction mobile control end is set on the Y-direction mobile control end, the liquid supplier, filter, pump, accumulator, liquid controller, hydraulic device, booster The press, the X-direction movement control terminal, and the Y-direction movement control terminal are all electrically connected to the controller.

The beneficial effect of adopting the above technical solution is: after the cutting liquid passes through the liquid supplier and the filter, it is pressurized by the pump, the accumulator, the supercharger and the hydraulic device, and the liquid controller sends the cutting liquid to the The nozzle can generate high-pressure liquid, and the high-pressure liquid flow can complete the rock cutting without disturbing the rock mass. The computer control system controls the movement of the nozzle through the X-direction movement control terminal and the Y-direction movement control terminal, so that the nozzle can move along the preset route. Morphology cut.

Further, the nozzle is provided with a first laser rangefinder, the nozzle is arranged on the horizontal rotation control end, and the horizontal rotation control end is arranged on the X-direction movement control end, the first laser rangefinder and the horizontal rotation control end are both connected to the control electrical connection.

The beneficial effects of adopting the above technical solution are: the first laser range finder can measure the vertical distance between the nozzle and the rock block, and when cutting the rock block, the distance between the nozzle and the cutting surface can be accurately controlled by the computer control system. Ensure that the energy difference of the high-pressure jet when it reaches the rock surface is small, which helps to improve the cutting accuracy and prevent irregular burrs on the cutting surface caused by the irregular energy attenuation of the high-pressure jet; the horizontal rotation control end can control the rotation of the nozzle to ensure The first laser range finder is always located directly in front of the designed cutting line, which helps to measure the distance between the nozzle and the rock block.

Further, the nozzle is provided with a corundum input pipe communicating with the high-pressure liquid delivery pipe.

The beneficial effect of adopting the above-mentioned technical solution is: the corundum is transported to the nozzle through the corundum input pipe, the high-pressure cutting fluid is transported to the nozzle through the water jet cutting system, and merges with the corundum to form a high-pressure jet at the nozzle, and the jet flow Adding extremely high hardness emery to the cutting machine can improve the cutting accuracy and speed, so that the high-pressure liquid flow can complete the cutting of rock blocks without disturbing the rock mass.

Further, the laser scanning system includes a calibration base arranged on the scanning operation table, a calibration grid is provided on the calibration base to assist in placing rock samples, a second laser range finder is provided in the upper gap of the calibration base, and the second laser The range finder is arranged on the X-direction mobile fixed end, and the second laser range finder and the X-direction mobile fixed end are both electrically connected to the controller.

The beneficial effect of adopting the above-mentioned technical solution is that the main function of the laser scanning system is to collect the two-dimensional coordinate data of the target structural surface. When it is necessary to copy a rock sample with a specific structural surface, the specific To collect data on the structural surface, first place the rock sample on the calibration base, where the calibration network can assist and check the placement position of the rock sample, and the second laser rangefinder can accurately measure the distance between the data points on the surface of the structural surface and the laser probe. The vertical distance data, the X-direction mobile fixed end can collect the horizontal movement data of the laser probe, and the computer control system can form a two-dimensional plane data point cloud according to the two data, and after processing by the computer control system, generate a surface reflecting the specific structure of the rock sample The two-dimensional coordinate data routing of .

Further, several telescopic fixing heads located on the horizontal fixing plate and the vertical fixing plate are all arranged uniformly in a matrix, so that the fixed points of the rock block are evenly distributed in all directions, and all the fixed points on the circumferential direction of the rock block are affected. The force is equal, so that the rock block is firmly fixed on the rock block fixing system.

A method for manufacturing a rock sample preparation device is provided, which includes the following steps:

S1: Check the degree of wear of the anti-corrosion plate. If the anti-corrosion plate is damaged, replace the anti-corrosion plate. If the anti-corrosion plate is not damaged, continue to use it, and place the rock block on the undamaged anti-corrosion plate;

S2: Use several telescopic fixing heads on the vertical fixing plate and the horizontal fixing plate to abut and fix the rock block;

S3: When it is necessary to copy a rock sample with a specific structural plane, the laser scanning system is used to collect data on the specific structural plane of the rock sample, and the nozzle is controlled to cut the rock block according to the collected data until it is on the rock block Complete the replication of the specific structural plane of the rock sample;

S4: When it is necessary to make regular-shaped rock samples, control the nozzle to cut the rock block several times along the preset route until the regular-shaped rock samples are made on the rock block.

The beneficial effects of the present invention are: this scheme can realize the production of rock samples of different specifications and shapes, and can be controlled by a computer control system to achieve high processing accuracy. The rock sample with the same structural plane can be obtained, the manual intervention in the rock sample production can be reduced, and the efficiency and accuracy of sample preparation can be improved while ensuring the safety of the sample preparation personnel.

Description of drawings

Figure 1 is a schematic diagram of the structure of the rock sample preparation device.

Figure 2 is a structural schematic diagram of the computer control system.

Fig. 3 is a schematic structural diagram of the cutting equipment system.

FIG. 4 is a partially enlarged view of FIG. 3 .

Fig. 5 is a schematic diagram of a partial structure at the nozzle.

FIG. 6 is a schematic structural diagram of a laser scanning system.

FIG. 7 is a partial top view of FIG. 6 .

Fig. 8 is a schematic diagram of cutting a rock sample with a specific structural plane.

Fig. 9 is a schematic diagram of the first cutting of a cube-shaped rock sample.

Fig. 10 is a schematic diagram of the second cutting of the cube-shaped rock sample.

Among them, 1. Cutting equipment system, 2. Laser scanning system, 3. Computer control system, 4. Horizontal fixed plate, 5. Anti-corrosion plate, 6. Horizontal moving end, 7. Vertical moving end, 8. Vertical fixed Plate, 9, retractable fixed head, 10, load sensor, 11, display, 12, computer mainframe, 13, controller, 14, liquid supplier, 15, filter, 16, pump, 17, accumulator, 18, Liquid controller, 19. High-pressure liquid delivery pipe, 20. Nozzle, 21. Hydraulic device, 22. Supercharger, 23. X-direction mobile control terminal, 24. Y-direction mobile control terminal, 25. The first laser range finder , 26, horizontal rotation control end, 27, corundum input tube, 28, calibration base, 29, calibration grid, 30, second laser range finder, 31, X-direction mobile fixed end.

Detailed ways

The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

As shown in FIG. 1 , the rock sample production device of this solution includes a cutting equipment system 1 , a laser scanning system 2 and a computer control system 3 .

As shown in FIG. 2 , the computer control system 3 includes a display 11 , a computer host 12 and a controller 13 which are sequentially connected. Both the cutting equipment system 1 and the laser scanning system 2 are electrically connected to the controller 13 .

As shown in Figures 3 and 4, the cutting equipment system 1 includes a rock block fixing system and a water jet cutting system. The rock block fixing system includes a horizontal fixing plate 4 arranged on the operating platform, and the upper end of the horizontal fixing plate 4 is provided with an anti-corrosion Plate 5 and anti-corrosion plate 5 are high-strength steel plates. The purpose is to prevent the residual energy of the high-pressure jet from cutting rocks from damaging the operating table. The horizontal fixed plate 4 is in a square shape. end 6, and the moving direction of the horizontal moving end 6 is parallel to the vertical line of the corresponding side of the horizontal fixed plate 4, the four horizontal moving ends 6 are provided with vertical moving ends 7, and the four vertical moving ends 7 are respectively provided with The vertical fixed plate 8 parallel to the four sides of the horizontal fixed plate 4, the vertical fixed plate 8 is provided with some telescopic fixed heads 9 perpendicular to the vertical fixed plate 8 and extending inwardly, and the horizontal fixed plate 4 is provided with some vertical The telescopic fixed head 9 extending straight upward, the rear end of the telescopic fixed head 9 is provided with a load sensor 10 , and the horizontal moving end 6 , the vertical moving end 7 and the load sensor 10 are all electrically connected to the controller 13 .

The rock block fixing system can accurately fix the rock blocks or rock cores of different shapes and sizes collected in the field according to the preset position, and carry out precise position adjustment through the computer control system 3, wherein the telescopic fixing head 9 can be controlled by the controller 13 Under the control of the rock block or rock core according to the predetermined load, the telescopic fixed head 9 can realize a small range of movement. If the size difference of the rock block is large, it can move in a larger range through the four horizontal moving ends 6. , and replace the telescopic fixed head 9 of different lengths to adapt to rock blocks of different sizes and shapes; at the same time, through the height difference of the displacement between the vertical moving ends 7, the fine adjustment of the angle of the rock block can be realized, and the water jet cutting system can be used to achieve The purpose of cutting rock formations at different angles.

As shown in Figure 3, the waterjet cutting system includes a liquid supplier 14, a filter 15, a pump 16, an accumulator 17, a liquid controller 18, a high-pressure liquid delivery pipe 19 and a nozzle 20 connected in sequence, and the liquid controller 18 passes through The hydraulic device 21 is connected with the supercharger 22, the spout of the nozzle 20 is vertically downward, the nozzle 20 is arranged on the X-direction movement control end 23, the X-direction movement control end 23 is arranged on the Y-direction movement control end 24, the liquid supplier 14. Filter 15, pump 16, accumulator 17, liquid controller 18, hydraulic device 21, supercharger 22, X-direction movement control terminal 23, Y-direction movement control terminal 24 are all electrically connected to controller 13.

After the cutting liquid passes through the liquid supplier 14 and the filter 15, it is pressurized by the pump 16, the accumulator 17, the supercharger 22 and the hydraulic device 21, and the liquid controller 18 delivers the cutting liquid to the nozzle through the high-pressure liquid delivery pipe 19 20, and generate high-pressure liquid, the high-pressure liquid flow can complete the rock cutting without disturbing the rock mass, the computer control system 3 controls the movement of the nozzle 20 through the X-direction movement control terminal 23 and the Y-direction movement control terminal 24, so that the nozzle 20 can Carry out morphological cutting along preset routes.

As shown in Figure 5, the nozzle 20 is provided with a first laser rangefinder 25, the nozzle 20 is arranged on the horizontal rotation control end 26, and the horizontal rotation control end 26 is arranged on the X-direction movement control end 23, the first laser rangefinder Both the meter 25 and the horizontal rotation control terminal 26 are electrically connected to the controller 13 .

The first laser range finder 25 can measure the vertical distance between the nozzle 20 and the rock block. When cutting the rock block, the computer control system 3 can accurately control the distance between the nozzle and the cutting surface to ensure that the high-pressure jet reaches the rock. The energy difference on the surface is small, which helps to improve the cutting accuracy and prevent irregular burrs on the cutting surface caused by the irregular energy attenuation of the high-pressure jet; the horizontal rotation control end 26 can control the rotation of the nozzle to ensure the first laser distance measurement Instrument 25 is positioned at the direct front of design cutting line all the time, contributes to the measurement of the distance between nozzle 20 and rock block.

The cutting liquid of the waterjet cutting system adopts light liquid paraffin oil. The nozzle 20 is provided with a corundum input pipe 27 connected with the high-pressure liquid delivery pipe 19, and the corundum is delivered to the nozzle 20 through the corundum input pipe 27. The high-pressure light liquid paraffin oil is delivered to the nozzle 20 and merged with the corundum to form a high-pressure jet at the nozzle 20, wherein the light liquid paraffin oil is used instead of traditional pure water, because traditional pure water will penetrate soft rock body, which seriously affects the processing quality and test results of the sample; at the same time, adding extremely hard corundum into the jet can improve the cutting accuracy and speed, so that the high-pressure liquid flow can complete the cutting of rock blocks without disturbing the rock mass.

As shown in Figures 6 and 7, the laser scanning system 2 includes a calibration base 28 arranged on the scanning console, the calibration base 28 is provided with a calibration grid 29 for assisting in placing rock samples, and the upper gap of the calibration base 28 is set There is a second laser rangefinder 30 , and the second laser rangefinder 30 is arranged on the X-direction movable fixed end 31 , both the second laser rangefinder 30 and the X-direction movable fixed end 31 are electrically connected to the controller 13 .

The main function of the laser scanning system 2 is to collect the two-dimensional coordinate data of the target structural surface. When it is necessary to make a rock sample with a specific structural surface, the laser scanning system 2 is required to collect data on the specific structural surface of the rock sample. The rock sample is placed on the calibration base 28, wherein the calibration network can assist and check the placement position of the rock sample, and the second laser rangefinder 30 can accurately measure the vertical distance data from the surface data point of the structural surface to the laser probe, X The horizontal movement data of the laser probe can be collected towards the mobile fixed end 31, and the computer control system 3 can form a two-dimensional planar data point cloud according to the two data, and after processing by the computer control system 3, a two-dimensional point cloud reflecting the specific structural surface of the rock sample is generated. Coordinate data routing.

Preferably, some telescopic fixing heads 9 on the horizontal fixing plate 4 and the vertical fixing plate 8 are arranged uniformly in a matrix, so that the fixing points of the rock blocks are evenly distributed in all directions, and all the fixed points of the rock blocks are fixed circumferentially. The force of the point is equal, so that the rock block is firmly fixed on the rock block fixing system.

A method for manufacturing a rock sample preparation device is provided, which includes the following steps:

S1: Check the degree of wear of the anti-corrosion plate 5, if the anti-corrosion plate 5 is damaged, replace the anti-corrosion plate 5, if the anti-corrosion plate 5 is not damaged, continue to use, and place the rock block on the undamaged anti-corrosion plate 5 superior;

S2: Using several telescopic fixing heads 9 on the vertical fixing plate and the horizontal fixing plate to abut and fix the rock block; it includes:

S21: Control the two relative horizontal moving ends 6 to approach the rock block, and control the expansion and contraction of the corresponding telescopic fixed heads 6 on the two relative horizontal moving ends 6, so that the front ends of the several telescopic fixed heads 9 are all close to the rock block;

S22: By adjusting the height difference between the two vertical moving ends 7 located on the two opposite horizontal moving ends 6, the position and angle of the inner structural surface of the rock are adjusted;

S23: Control the other two horizontally moving ends 6 to approach the rock block, and control the expansion and contraction of a number of telescopic fixed heads 9 corresponding to the other two horizontally movable ends 6, so that the front ends of the telescopic fixed heads 9 are all close to the rock block;

S24: adjust the telescopic amount of the telescopic fixed head 9 on all the vertical fixed plates 8, so that the load sensor 10 at the rear end of each telescopic fixed head 9 reaches the preset load value, and complete the circumferential fixing of the rock block;

S25: controlling the elongation of several telescopic fixed heads 9 on the horizontal fixed plate 4 until the front end of the telescopic fixed head 9 contacts with the lower surface of the rock block to assist in supporting the rock block;

S3: When it is necessary to copy a rock sample with a specific structural plane, the laser scanning system 2 is used to collect data on the specific structural plane of the rock sample, and the nozzle 20 is controlled to cut the rock block according to the collected data until the The replication of specific structural planes of the rock sample is completed on the block; it includes:

S31: Place the rock sample with a specific structural surface on the calibration base 28, and calibrate the position of the rock sample through the calibration grid 29, so that the concave-convex direction of the structural surface of the rock sample is parallel to the moving direction of the X-direction mobile fixed end 31 ;

S32: Control the X-direction to move the fixed end 31 to drive the second laser rangefinder 30 to move at a preset speed;

S33: collect the measurement data of the second laser rangefinder 30 and the movement data of the X-direction mobile fixed end 31 in real time, and generate a two-dimensional coordinate data line reflecting the specific structural plane of the rock sample through the computer control system 3;

S34: Turn on the waterjet cutting system, use light liquid paraffin oil as the cutting liquid, and form a high-pressure jet at the nozzle 20;

S35: As shown in Figure 8, control the nozzle 20 to cut the shape of the rock block according to the two-dimensional coordinate data alignment, and complete the copy of the specific structural surface of the rock sample on the rock block;

S4: When it is necessary to make a rock sample with a regular shape, the control nozzle 20 cuts the rock block multiple times along the preset route until the rock sample with a regular shape is completed on the rock block; it includes:

S41: Turn on the waterjet cutting system, use light liquid paraffin oil as the cutting liquid, and form a high-pressure jet at the nozzle 20;

S42: Control X to move to the control terminal 23 and Y to move to the control terminal 24 to make the nozzle 20 cut the rock block along the preset route of the computer control system 3;

S43: Turn off the water jet cutting system, control the four horizontally moving ends 6 away from the rock block, and take out the cut rock block;

S43: Judging whether the rock sample of regular shape has been made, if it is made, stop the operation; if it is not made, clean up the rock waste generated by cutting on the anti-corrosion plate, and then place the cut rock block at a different angle on the corrosion protection plate 5;

S44: using several telescopic fixing heads 9 on the vertical fixing plate and the horizontal fixing plate to abut and fix the cut rock blocks;

S45: return to step S41 until the preparation of the regular-shaped rock sample is completed.

In particular, the regular-shaped rock samples in this program include rock samples with structures such as cubes and cylinders, and rock samples that are re-cut based on these structures. Rock samples with such structures need to be changed many times during production. Angle cutting, as shown in Figure 9 and Figure 10, taking the cutting of a cube-shaped rock sample as an example, wherein the cube-shaped rock sample needs to be cut twice, after cutting the four faces of the rock sample for the first time, the The rock sample was removed and fixed horizontally, and then the second cutting was performed to complete the cutting of the remaining two faces.

To sum up, the rock sample production device of this program can realize the production of rock samples of different specifications and shapes. Through the control of the computer control system 3, it can achieve high processing accuracy. Rock samples, making rock samples with the same structural plane, reducing manual intervention in rock sample production, and improving the efficiency and accuracy of sample preparation while ensuring the safety of sample preparation personnel.

Claims (10)

1. A rock sample making device, which is characterized by comprising a cutting equipment system (1), a laser scanning system (2) and a computer control system (3);

the cutting equipment system (1) comprises a rock mass fixing system and a water jet cutting system, wherein the rock mass fixing system comprises a horizontal fixing plate (4) arranged on an operation table, the upper end of the horizontal fixing plate (4) is provided with an anti-corrosion plate (5), the horizontal fixing plate (4) is square, the outer sides of four sides of the horizontal fixing plate (4) are respectively provided with a horizontal moving end (6), the moving direction of the horizontal moving end (6) is parallel to the vertical line of the corresponding side of the horizontal fixing plate (4), the four horizontal moving ends (6) are respectively provided with a vertical fixing plate (8) which is parallel to the four sides of the horizontal fixing plate (4), the vertical fixing plate (8) is provided with a plurality of telescopic fixing heads (9) which are perpendicular to the vertical fixing plate (8) and extend inwards, the horizontal fixing plate (4) is provided with a plurality of telescopic fixing heads (9) which extend vertically upwards, and the rear end (10) of the fixing heads (9) is provided with a load sensor;

the computer control system (3) comprises a controller (13), and the laser scanning system (2), the water jet cutting system, the horizontal moving end (6), the vertical moving end (7) and the load sensor (10) are all electrically connected with the controller (13).

2. The rock sample making apparatus according to claim 1, wherein the water knife cutting system comprises a liquid supply (14), a filter (15), a pump (16), an accumulator (17), a liquid controller (18), a high-pressure liquid delivery pipe (19) and a nozzle (20) which are sequentially connected, wherein the liquid controller (18) is connected with a booster (22) through a hydraulic device (21), the nozzle (20) is vertically downward, the nozzle (20) is arranged on an X-direction movement control end (23), the X-direction movement control end (23) is arranged on a Y-direction movement control end (24), and the liquid supply (14), the filter (15), the pump (16), the accumulator (17), the liquid controller (18), the hydraulic device (21), the booster (22), the X-direction movement control end (23) and the Y-direction movement control end (24) are all electrically connected with the controller (13).

3. The rock sample making apparatus according to claim 2, wherein a first laser range finder (25) is provided on the nozzle (20), the nozzle (20) is provided on a horizontal rotation control end (26), the horizontal rotation control end (26) is provided on an X-direction movement control end (23), and both the first laser range finder (25) and the horizontal rotation control end (26) are electrically connected with the controller (13).

4. Rock sample making apparatus according to claim 2, characterized in that the nozzle (20) is provided with a silicon carbide inlet tube (27) communicating with a high pressure liquid delivery tube (19).

5. The rock sample making apparatus according to claim 1, wherein the laser scanning system (2) comprises a calibration base (28) arranged on a scanning operation table, a calibration grid (29) for assisting in placing the rock sample is arranged on the calibration base (28), a second laser range finder (30) is arranged in a gap above the calibration base (28), the second laser range finder (30) is arranged on an X-direction movable fixed end (31), and both the second laser range finder (30) and the X-direction movable fixed end (31) are electrically connected with the controller (13).

6. The rock sample making apparatus according to claim 1, characterized in that several telescopic fixing heads (9) on the horizontal fixing plate (4) and the vertical fixing plate (8) are uniformly arranged in a matrix.

7. A method of manufacturing a rock sample-manufacturing apparatus according to any one of claims 1 to 6, comprising the steps of:

s1: checking the loss degree of the corrosion-resistant plate (5), if the corrosion-resistant plate (5) is damaged, replacing the corrosion-resistant plate (5), if the corrosion-resistant plate (5) is not damaged, continuing to use, and placing the rock mass on the undamaged corrosion-resistant plate (5);

s2: the rock is abutted and fixed by adopting a plurality of telescopic fixing heads (9) on the vertical fixing plate and the horizontal fixing plate;

s3: when a rock sample with a specific structural surface needs to be copied, acquiring data of the specific structural surface of the rock sample by a laser scanning system (2), and controlling a nozzle (20) to perform morphological cutting on a rock block according to the acquired data until the copying of the specific structural surface of the rock sample is completed on the rock block;

s4: when a rock sample with a regular shape needs to be manufactured, the nozzle (20) is controlled to perform morphological cutting on the rock mass for a plurality of times along a preset route until the manufacture of the rock sample with the regular shape is completed on the rock mass.

8. The method of manufacturing a rock sample manufacturing apparatus according to claim 7, wherein the step S2 includes:

s21: controlling the two opposite horizontal moving ends (6) to be close to the rock mass, and controlling the corresponding telescopic fixed heads (9) on the two opposite horizontal moving ends (6) to be telescopic, so that the front ends of the telescopic fixed heads (9) are tightly attached to the rock mass;

s22: the position and the angle of the rock internal structural surface are adjusted by adjusting the height difference of two vertical moving ends (7) positioned on two opposite horizontal moving ends (6);

s23: controlling the other two horizontal moving ends (6) to be close to the rock mass, and controlling a plurality of corresponding telescopic fixed heads (9) on the other two horizontal moving ends (6) to stretch so that the front ends of the telescopic fixed heads (9) are tightly attached to the rock mass;

s24: the expansion and contraction amounts of the expansion and contraction fixing heads (9) on all the vertical fixing plates (8) are adjusted, so that the load sensor (10) at the rear end of each expansion and contraction fixing head (9) reaches a preset load value, and the circumferential fixation of the rock mass is completed;

s25: and controlling a plurality of telescopic fixing heads (9) on the horizontal fixing plate (4) to extend until the front ends of the telescopic fixing heads (9) are contacted with the lower surface of the rock mass, and supporting the rock mass in an auxiliary way.

9. The method of manufacturing a rock sample manufacturing apparatus according to claim 7, wherein the step S3 includes:

s31: placing a rock sample with a specific structural surface on a calibration base (28), and calibrating the position of the rock sample through a calibration grid (29) so that the concave-convex trend of the structural surface of the rock sample is parallel to the moving direction of an X-direction moving fixed end (31);

s32: controlling the X-direction movable fixed end (31) to drive the second laser range finder (30) to move at a preset speed;

s33: acquiring measurement data of a second laser range finder (30) and movement data of an X-direction movable fixed end (31) in real time, and generating a two-dimensional coordinate data wiring reflecting a specific structural surface of a rock sample through a computer control system (3);

s34: opening a water knife cutting system, adopting light liquid paraffin oil as cutting liquid, and forming high-pressure jet flow at a nozzle (20);

s35: the control nozzle (20) performs morphological cutting on the rock block according to the two-dimensional coordinate data trace, and the copying of the specific structural surface of the rock sample is completed on the rock block.

10. The method of manufacturing a rock sample manufacturing apparatus according to claim 7, wherein the step S4 includes:

s41: the water knife cutting system is opened, light liquid paraffin oil is used as cutting liquid, and high-pressure jet flow is formed at the nozzle (20);

s42: the X-direction movement control end (23) and the Y-direction movement control end (24) are controlled to move, so that the nozzle (20) performs morphological cutting on the rock along a preset route of the computer control system (3);

s43: closing the water jet cutting system, controlling the four horizontal moving ends (6) to be far away from the rock mass, and taking out the cut rock mass;

s43: judging whether the rock sample with the regular shape is manufactured or not, and if so, terminating the operation; if the manufacturing is not finished, the rock mass waste generated by cutting on the corrosion-resistant plate is cleaned, and then the cut rock mass is placed on the corrosion-resistant plate (5) in a changing angle;

s44: the cut rock is abutted and fixed by adopting a plurality of telescopic fixing heads (9) on the vertical fixing plate and the horizontal fixing plate;

s45: step S41 is returned to until the production of the rock sample of the regular shape is completed.

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