CN212658519U - Rock sample grinding and polishing loading device and rock sample preparation system - Google Patents

Abstract

The utility model relates to a rock sample grinds flat polishing loading attachment and rock sample system appearance system belongs to rock sample system appearance technical field, solves the problem that current system appearance method system appearance is inefficient, the yield is low. The rock sample grinding and polishing loading device comprises a sample chuck, a connecting plate, a sample pressing block, a counterweight component and a repairing disc ring; the sample chuck and the connecting plate can be detachably arranged in the repair disk ring, and the connecting plate is positioned above the sample chuck; the sample chuck is provided with a sample mounting hole; the sample pressing block can be arranged in the sample mounting hole; the connecting plate is provided with a balance weight through hole, and the balance weight component can apply pressure to the sample pressing block and the rock sample positioned below the sample pressing block through the balance weight through hole; and fixing the rock sample on the lower surface of the sample pressing block by adopting thermoplastic resin, wherein the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block. The utility model has the advantages of simple structure, system appearance is efficient, the yield is high.

Description

Rock sample grinding and polishing loading device and rock sample preparation system

Technical Field

The utility model relates to a rock sample system appearance technical field especially relates to a rock sample grinds flat polishing loading attachment and rock sample system appearance system.

Background

When physical properties such as components, crystal microstructures, optical characteristics and the like of various rocks or natural minerals are tested, collected rocks are required to be made into rectangular laminar rock samples, and corresponding testing equipment is combined to perform corresponding tests on rectangular planes of the rock samples. Therefore, the flatness and smoothness of the rock sample directly relate to the accuracy and reliability of the test result. The process of preparing a rock sample generally requires cutting the rock into a sheet structure with a close size, namely a cuboid with a smaller height, and further grinding and polishing the plane to be tested.

Due to the irregular characteristic of the rock, the rock is difficult to be cut into relatively regular rectangular sheets by the existing sample preparation method, the rock is often cut into trapezoids such as parallelograms or trapezoids, the upper plane and the lower plane are often difficult to be parallel, and the thickness is uneven, so that the rock sample needs to be further processed in the subsequent grinding process to form a rectangular sheet, the workload of the grinding and polishing process is greatly increased, and the rejection rate is high.

In addition, in the existing sample preparation method, a glue bonding or mechanical fixing mode is usually adopted to fix the sliced rock sample in the grinding and polishing process, and then the rock sample is ground and polished, but due to the cutting, bonding and other reasons, the surfaces to be ground and polished of the rock sample are often different in height and easy to incline, and the grinding and polishing process usually needs more than 20min when 0.5mm is ground, and a large amount of extra burden of the grinding operation can be caused by small thickness nonuniformity.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the utility model aims at providing a rock sample grinds flat polishing loading attachment and rock sample system appearance system for solve the problem that current system appearance method work load is big, work efficiency is low, the yield is low.

The purpose of the utility model is mainly realized through the following technical scheme:

in one aspect, a rock sample grinding and polishing loading device is provided and comprises a sample chuck, a connecting plate, a sample pressing block, a counterweight component and a repairing disc ring; the sample chuck and the connecting plate can be detachably arranged in the repair disk ring, and the connecting plate is positioned above the sample chuck; the sample chuck is provided with a sample mounting hole; the sample pressing block can be arranged in the sample mounting hole; the connecting plate is equipped with the counter weight through-hole, and the counter weight subassembly can exert pressure to sample briquetting and the rock sample that is located sample briquetting below through the counter weight through-hole.

Furthermore, the sample chuck is of a rotational symmetric structure, and a plurality of sample mounting holes are uniformly distributed along the circumferential direction.

Further, the connecting plate is provided with balance weight through holes the number of which is the same as that of the sample mounting holes.

Further, the counter weight subassembly includes counter weight pole and balancing weight, and the balancing weight is demountable installation on the counter weight pole.

Further, the sample pressing block can be seamlessly arranged in the sample mounting hole; during the grinding and polishing process, the sample pressing block can move downwards in the sample mounting hole under the action of pressure exerted by the weight assembly.

Furthermore, the center of the top surface of the sample pressing block is provided with a positioning groove.

Further, the rock sample is fixed on the lower surface of the sample pressing block by adopting thermoplastic resin, and the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block.

Furthermore, a clamping groove for mounting a rock sample is formed in the lower surface of the sample pressing block, and thermoplastic resin is filled in the clamping groove;

furthermore, the cross section of the clamping groove is in a rectangular shape with convex four sides, and the size of the clamping groove is smaller than that of the sample mounting hole and larger than that of the rock sample.

Further, the number of the weight components is the same as the number of the sample pressing blocks.

Furthermore, a balance weight center through hole is formed in the center of the balance weight block, a balance weight clamping portion is arranged on the balance weight rod, and the diameter of the balance weight center through hole is equal to that of the balance weight rod.

Furthermore, the quantity of balancing weight is a plurality of, has multiple specification, and the weight of pouring weight is the ladder setting.

Further, the connecting plate is the rotational symmetry structure, and the center department of connecting plate is equipped with first through-hole, and the connecting plate evenly is equipped with 3 second through-holes along circumference, and the aperture of second through-hole equals with the diameter of counter weight.

Further, the connecting plate is equipped with perpendicular spacing portion, and perpendicular spacing portion is used for prescribing a limit to vertical state with the weight lever.

Further, the overall dimensions of the sample chuck are matched with the internal cavity structure of the trimming ring.

Further, 3 sample mounting holes are uniformly distributed in the circumferential direction of the sample chuck, and the cross section of each sample mounting hole is rectangular.

Further, the rock sample grinding and polishing loading device further comprises a holding moving assembly, and the holding moving assembly comprises a central rod and a holding part.

Furthermore, the holding part is detachably arranged at the upper end of the central rod and is used for being held by a user; the lower part of the central rod is provided with a connecting plate clamping part, the connecting plate clamping part divides the central rod into an upper section and a lower section, and the size of the connecting plate clamping part is larger than the aperture of the first through hole; the diameter of the central rod is equal to the aperture of the first through hole.

Furthermore, a central rod groove is formed in the center of the sample chuck, and the groove diameter of the central rod groove is equal to the rod diameter of the central rod.

Furthermore, the inner wall of the central rod groove is provided with an internal thread, the lower end of the central rod is provided with an external thread, and the central rod is connected with the central rod groove through a thread.

On the other hand, the rock sample preparation system comprises rock sample cutting equipment and a rock polishing machine, wherein the rock polishing machine is matched with the rock sample grinding, polishing and loading device.

Further, the rock sample cutting apparatus comprises: the device comprises a cutting mechanism, a rock fixing mechanism and an attitude adjusting mechanism; the cutting mechanism is movably arranged on a base of the rock sample cutting equipment; the attitude adjusting mechanism comprises a fixed table, an azimuth angle adjusting mechanism and a pitch angle adjusting mechanism; the bottom surface of the fixed table is connected with the base through a spherical hinge.

Further, the rock polishing machine comprises a main body, a control assembly, a limiting bracket and a grinding and polishing loading device; the main body is provided with a water spraying assembly, a polishing solution dripping assembly, an operation tray and a driving motor for driving the operation tray to rotate; the polishing solution dripping component is used for dripping polishing solution into the operation tray; the control assembly is arranged in the main body and used for controlling the grinding and polishing process of the rock sample; the limiting support is provided with two rollers and a roller motor used for driving the rollers to rotate, the rollers are tangent to the outer peripheral wall of the repair plate ring and drive the sample chuck to rotate, and the rotating direction of the sample chuck is opposite to that of the operation tray.

Compared with the prior art, the utility model discloses technical scheme can realize one of following effect at least:

(1) the utility model discloses a rock sample grinds flat polishing loading attachment, through treating the equal independent counterweight assembly that sets up of rock sample of grinding and polishing to every, can set up the counterweight assembly of different weight to the rock sample of different lithologies, different hardness, different abrasion resistance, and then can realize polishing the multiple sample of different lithologies, different hardness simultaneously, the utility model discloses a loading attachment's commonality is strong, and work efficiency is high, has extensive application prospect.

(2) The utility model discloses a rock sample grinds flat polishing loading attachment, through set up the sample mounting hole on the sample chuck, the size of sample briquetting is the same with the sample mounting hole, the adoption is moulded the fixing of resin with the rock sample on the sample briquetting to through pressing from both sides the upper surface parallel who tightly makes treating of rock sample grind polished surface and sample briquetting of inversion refrigerated mode, guarantee that treating of same batch of rock sample grinds polished surface and all is in on same horizontal plane approximately, thereby reduce the work load of grinding flat by a wide margin, only need 5min just can accomplish once and grind flat operation, improve work efficiency and system appearance yield by a wide margin.

(3) The utility model discloses a rock sample system appearance system through the rock sample cutting equipment that adopts to have pitch angle adjustment mechanism and azimuth adjustment mechanism, can adjust the pitch angle and the azimuth angle of the relative annular saw of rock, and then can cut out the more even rectangle slice rock sample of thickness, has reduced the work load of follow-up flat-grinding operation, has improved the cutting system appearance efficiency of rock sample. The rock polishing machine with the two groups of rock sample loading devices is adopted, grinding and polishing of a plurality of rock samples can be completed at one time, polishing work efficiency is remarkably improved, and labor intensity of operators is greatly reduced.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

Fig. 1 is a schematic structural diagram of a rock sample cutting device according to embodiment 1 of the present invention;

fig. 2 is a top view of a rock sample cutting apparatus of embodiment 1 of the present invention;

figure 3 is a side view of a rock sample cutting apparatus of embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of a rock sample grinding and polishing loading device according to embodiment 2 of the present invention;

fig. 5 is a schematic top view of a connection plate according to embodiment 2 of the present invention;

fig. 6 is a schematic top view of a sample cartridge according to embodiment 2 of the present invention;

fig. 7 is a schematic structural view of a disc repairing ring according to embodiment 2 of the present invention;

FIG. 8 is a schematic structural diagram of a sample briquette according to embodiment 2 of the present invention;

FIG. 9 is a schematic top view of a sample compact according to example 2 of the present invention;

fig. 10 is a top view of the sample chuck according to embodiment 2 of the present invention after being loaded into the repair ring;

fig. 11 is a top view of the connection plate and the disc repairing ring according to embodiment 2 of the present invention after being connected;

fig. 12 is a top view of a weight block according to embodiment 2 of the present invention placed on a sample chuck;

fig. 13 is a schematic structural diagram of a rock polishing machine according to embodiment 3 of the present invention;

fig. 14 is a flowchart of a rock sample preparation method according to embodiment 4 of the present invention.

Reference numerals

1-a base; 2-arc slide rail; 3-arc slide block; 4-a fixed table; 5-spherical hinge; 6-a lead screw; 7-lead screw nut; 8-connecting rod; 9-rotating the adjusting block; 10-nut slide rail; 11-a baffle plate; 12-a rock clamp; 13-baffle sliding chute; 14-a first direction mechanism; 15-a second direction mechanism; 16-a third direction mechanism; 17-a circular saw; 18-cutting the abdication slot; 19-a sample cartridge; 20-sample mounting holes; 21-a central rod groove; 22-a connecting plate; 23-a first via hole; 24-a second via; 25-sample briquetting; 26-a positioning groove; 27-a counterweight rod; 28-counterweight clamping part; 29-a counterweight block; 30-a counterweight center through hole; 31-a center pole; 32-connecting the board clamping part; 33-repairing a disc ring; 34-a vertical limiting part; 35-a jaw; 36-a grip portion; 37-a body; 38-a water spray assembly; 39-polishing solution dropping component; 40-a job tray; 41-a limit bracket; 42-roller.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

Example 1

As shown in fig. 1 to 3, the embodiment of the utility model provides a rock sample cutting equipment is provided, through azimuth angle guiding mechanism and pitch angle guiding mechanism, the embodiment of the utility model provides a can adjust the pitch angle and the azimuth angle of the relative annular saw 17 of rock, make the rock sample after the cutting can be more nearly with in the standard rectangle thin slice of rock sample, and the thickness of cutting is more even, has reduced the grinding and polishing work load to the rock sample after the cutting, has improved the system appearance efficiency of rock sample.

In particular, a rock sample cutting apparatus comprises: the device comprises a cutting mechanism, a rock fixing mechanism and an attitude adjusting mechanism; the cutting mechanism is movably arranged on a base 1 of the rock sample cutting equipment; the attitude adjusting mechanism comprises a fixed table 4, an azimuth angle adjusting mechanism and a pitch angle adjusting mechanism; the bottom surface of the fixed table 4 is connected with the base 1 through a spherical hinge 5, so that the fixed table 4 can rotate in any direction within an allowable angle range, and the movement interference between the azimuth angle adjusting mechanism and the pitch angle adjusting mechanism is avoided. In practical use, the cutting mechanism generally adopts the vertically arranged circular saw 17 to cut the rock, fixes the collected rock on the fixed platform 4, and in a vertical plane perpendicular to the circular saw 17, the pitching angle of the fixed platform 4 relative to the circular saw 17 is adjusted through the pitching angle adjusting mechanism, and in a horizontal plane perpendicular to the circular saw 17, the azimuth angle of the fixed platform 4 relative to the circular saw 17 is adjusted through the azimuth angle adjusting mechanism.

For convenience of description, in the embodiment of the present invention, the horizontal direction parallel to the circular saw 17 is set to be the X-axis direction, the vertical direction parallel to the circular saw 17 is the Y-axis direction, and the horizontal direction perpendicular to the circular saw 17 is the Z-axis direction. The pitch angle is the angle in a plane parallel to the Y-axis and the Z-axis, and the azimuth angle is the angle in a plane parallel to the X-axis and the Z-axis. Through adjustment every single move angle and position angle, the embodiment of the utility model provides a can cut out the even long and thin slice rock sample of thickness, reduce the grinding polishing work load to cutting back rock sample, improve the system appearance efficiency of rock sample.

The utility model discloses rock sample cutting equipment still is equipped with transparent shell, and transparent shell is articulated with base 1, and cutting mechanism, rock fixing mechanism and gesture guiding mechanism all set up inside transparent shell. Transparent shell can prevent splashing or the drifting of dust of rock piece among the rock cutting process, can not only protect operation personnel's safety, and the clearance of convenient cutting waste material is favorable to environmental protection in addition.

In the embodiment of the utility model, the azimuth adjusting mechanism comprises an arc slide rail 2, an arc slide block 3 and a jacking screw, the arc slide block 3 is fixedly connected with the bottom surface of the fixed table 4; the centre of a circle of circular arc slide rail 2 coincides with the center of ball pivot 5, the utility model discloses the azimuth adjustment structure makes fixed station 4 can use the center of ball pivot 5 to swing as the centre of a circle to realize azimuth's adjustment. The jacking screw penetrates through the fixed platform 4 and abuts against the arc slide rail 2, and after the azimuth angle is adjusted, the jacking screw is screwed down, so that the jacking screw is screwed in and firmly abuts against the arc slide rail 2, and the azimuth angle is fixed. The arc sliding blocks 3 are at least 2 and can slide along the arc sliding rails 2, and the arc sliding blocks 3 and the spherical hinges 5 form a stable plane, so that the fixed table 4 cannot be laterally turned when the tightening screws lock the azimuth angle.

The embodiment of the utility model provides an in, pitch angle guiding mechanism includes ball screw mechanism and connecting rod 8, and ball screw mechanism's lead screw 6 is perpendicular with base 1, and ball screw mechanism's lead screw nut 7 is articulated with connecting rod 8, and connecting rod 8 is articulated with circular arc slide rail 2. When the pitching angle is adjusted, the screw rod 6 is rotated, the screw rod nut 7 is enabled to translate up and down, the position of the sliding rail is adjusted through connection of the connecting rod 8, and then the pitching angle of the fixed table 4 is adjusted.

Specifically, the base 1 is provided with a through hole, the screw 6 penetrates through the through hole and penetrates out of the bottom surface of the base 1, the end part of the screw 6 penetrating out of the bottom surface of the base 1 is fixedly provided with a rotary adjusting block 9, and the rotation of the screw 6 can be realized only by screwing the rotary adjusting block 9; the screw 6 is connected with the base 1 through a bearing, so that the relative position of the screw 6 and the base 1 is unchanged along the axial direction of the screw 6, and the screw 6 can also rotate; the ball screw mechanism is provided with a nut slide rail 10 parallel to the screw 6, the screw nut 7 can translate along the nut slide rail 10, and when the screw 6 rotates, the screw nut 7 translates along the nut slide rail 10 and the screw 6 due to the limiting effect of the nut slide rail 10, and then the connecting rod 8 drives the arc slide rail 2 to move.

Because the embodiment of the utility model provides a adjust the relative annular saw 17's of fixed station 4 angle of pitch and azimuth through angle of pitch adjustment mechanism and azimuth adjustment mechanism, consequently as long as fix the rock of gathering on fixed station 4 can realize the relative annular saw 17's of rock angle of pitch and the regulation of azimuth, the embodiment of the utility model provides a come the rock to fix on fixed station 4 through rock fixing mechanism.

Specifically, in the embodiment of the utility model provides an in, rock fixing mechanism includes rock clamp 12 and baffle 11, makes through the adjustment of angle of pitch and azimuth, and baffle 11 and circular saw 17 are parallel, and the face of hugging closely baffle 11 promptly is parallel with the cutting plane, and the rock sample after the cutting is the parallelogram thin slice that thickness is even, and baffle 11 is perpendicular with the tight face of clamp of rock clamp 12 for the rectangle thin slice that the rock sample after the cutting is thickness and is. A baffle plate sliding groove 13 perpendicular to the baffle plate 11 is formed in the top surface of the fixed table 4, and the baffle plate 11 can move in a horizontal direction along the baffle plate sliding groove 13 to adjust the distance between the baffle plate 11 and the circular saw 17; baffle 11 is equipped with baffle 11 set screw, and baffle 11 set screw passes baffle 11, and can support on baffle spout 13, has adjusted the position of baffle 11 for fixed station 4, screws baffle 11 set screw, realizes the fixed of baffle 11 for the position of fixed station 4. Baffle 11 is equipped with the parallel anchor clamps spout with the top surface of fixed station 4, and rock jig 12 can follow the translation of anchor clamps spout for rock jig 12 can press from both sides tight rock all the time, and is exemplary, and rock jig 12 adopts vernier caliper's right triangle clamping jaw. The rock clamp 12 is provided with a clamp locking screw which penetrates through the rock clamp 12 and can abut against the clamp sliding groove, the position of the baffle plate 11 relative to the rock clamp 12 is adjusted, and the locking screw is screwed to fix the position of the baffle plate 11 relative to the rock clamp 12.

In order to realize accurate cutting of the rock, in the embodiment of the utility model, the cutting mechanism comprises a circular saw 17 and a translation mechanism, and the translation mechanism comprises a first direction mechanism 14, a second direction mechanism 15 and a third direction mechanism 16; the first direction mechanism 14, the second direction mechanism 15 and the third direction mechanism 16 are all slide rail and slide block mechanisms; the slide rail and slide block mechanism comprises a linear slide rail and a linear slide block, and the linear slide block translates along the linear slide rail; a linear slide rail of the first direction mechanism 14 is fixed with the base 1, a linear slide rail of the second direction mechanism 15 is fixed with a linear slide block of the first direction mechanism 14, and a linear slide rail of the third direction mechanism 16 is fixed with a linear slide block of the second direction mechanism 15; the circular saw 17 is parallel to the fence 11. Wherein, the linear slide rail of the first direction mechanism 14 is vertical to the top surface of the base 1, the linear slide rail of the second direction mechanism 15 is vertical to the linear slide rail of the first direction mechanism 14, and the linear slide rail of the third direction mechanism 16 is vertical to the linear slide rail of the second direction mechanism 15; the linear slide rail of the first direction mechanism 14, the linear slide rail of the second direction mechanism 15 and the linear slide rail of the third direction mechanism 16 are located on the same plane, and the plane is parallel to or coincident with the central axis plane of the base 1.

The embodiment of the utility model provides an in, first direction mechanism 14 realizes the position adjustment of annular saw 17 in the X axle direction, and second direction mechanism 15 realizes the position adjustment of annular saw 17 in the Y axle direction, and third direction mechanism 16 realizes the position adjustment of annular saw 17 in the Z axle direction to under guaranteeing that annular saw 17 does not take place torsional prerequisite, realize the translation of annular saw 17 in the space, accomplish the accurate cutting to the rock.

Because the position adjustment of the circular saw 17 belongs to accurate control, in the embodiment of the utility model, automatic control is adopted, specifically, the slide rail slide block mechanism is also provided with a linear motor, and the linear motor drives a linear slide block to translate in a linear slide rail; rock sample cutting equipment still is equipped with the main control system, and the main control system can send removal control signal to linear electric motor, and annular saw 17 passes through cutting motor drive and rotates, and the main control system can send cutting control signal to the cutting motor. Use the utility model discloses during the time, adjust pitch angle and azimuth earlier, fixed stop 11 and rock anchor clamps 12 again, cover transparent housing, start the main control system, through the main control system realize the cutting of annular saw 17 to a certain cutting plane of rock.

In order to cause the damage to fixed station 4 when preventing the circular saw 17 cutting, the embodiment of the utility model provides an in, the top surface of fixed plate is equipped with the cutting groove of stepping down 18, when guaranteeing that circular saw 17 accomplishes the cutting to the rock, prevents that circular saw 17 from cutting fixed station 4, cuts simultaneously and steps down the groove 18 and can also produce piece and powder when connecing the cutting rock greatly, and is convenient right the utility model discloses the clearance.

In addition, baffle spout 13 is equipped with the scale, can show the side of baffle 11 and rock contact to the cutting distance of groove 18 center of stepping down, and when main control system control circular saw 17's position, all use the cutting to step down the center of groove 18 as the reference point, adjust the relative and fixed station 4's of circular saw 17 spatial position through translation mechanism to realize the accurate control of cutting.

Compared with the prior art, the rock sample cutting equipment that this embodiment provided uses pitch angle adjustment mechanism and azimuth adjustment mechanism, can adjust the pitch angle and the azimuth of the relative annular saw of rock, makes the utility model discloses a rock sample cutting equipment can cut out the more even rectangle slice rock sample of thickness, has reduced the work load of follow-up mill flat operation, has improved the system appearance efficiency of rock sample. X, Y, Z's its accurate removal of triaxial is realized through cutting structure to realize the accurate control of annular saw to rock cutting position, make the pattern sample shape after the cutting more regular, the size is close to rock sample standard size more, further alleviateed the work of follow-up flat operation of grinding, improved rock sample's yield and system appearance efficiency. In addition, the rock sample cutting equipment of this embodiment's simple structure, easily clearance and maintenance, safe and reliable, easy and simple to handle need not to carry out special operation training to the operator, has reduced the operator and has used the restriction, can improve the system appearance efficiency and the qualification rate of rock sample by a wide margin.

Example 2

After cutting the rock into a standard shape and size similar to a rock sample, the rock sample needs to be ground flat and polished to facilitate subsequent testing. Due to the process of cutting the rock sample into sheets, the cut rock sample is often not in a sheet shape with uniform thickness, and even the cutting surface is inclined. In the prior art, a rock sample is usually fixed on a sample chuck in a glue bonding or mechanical fixing mode, and the problem is that it is difficult to ensure that a polished surface to be ground is approximately horizontal, so that the inclined surface is usually ground into a horizontal surface in a grinding process, and then the horizontal surface is ground and polished, so that the workload in the grinding process is greatly increased, and the existing grinding and polishing equipment can grind off 0.5mm in about 20min, so that the sample preparation process usually needs several hours. However, since the thickness difference of different samples may be obvious, a certain rock sample is ground flat, but other samples are not ground flat, and therefore, all samples are ground flat until all rock samples are ground flat, and otherwise, useless grinding operation is caused.

To the above problem, the embodiment of the utility model provides a rock sample grinds flat polishing loading device for rock sample's system appearance process uses with the rock polishing machine is supporting. As shown in fig. 4, the rock sample polishing loading device comprises: sample chuck 19, connection plate 22, sample compact 25, counterweight assembly and repair disk ring 33; the sample chuck 19 and the connecting plate 22 can be detachably mounted in the disc repairing ring 33, the connecting plate 22 is positioned above the sample chuck 19, and the connecting plate 22 is connected with the upper end of the disc repairing ring 33; the sample chuck 19 is of a rotational symmetric structure, and a plurality of sample mounting holes 20 are uniformly distributed along the circumferential direction; the sample pressing block 25 is detachably arranged in the sample mounting hole 20 and presses on the rock sample arranged in the sample mounting hole 20; the connecting plate 22 is provided with the same number of balance weight through holes as the sample mounting holes 20, and the balance weight assembly can apply pressure to the sample pressing block 25 through the balance weight through holes, and since the rock sample is positioned below the sample pressing block 25, the balance weight assembly applies vertical downward pressure to the rock sample in the grinding process.

In the present embodiment, in order that the working tray 40 of the rock polishing machine comes into contact with the entire surface to be polished of the rock sample at the start of polishing, the rock sample to be polished is fixed to the lower surface of the sample compact 25 by using the thermoplastic resin in such a manner that the surface to be polished of the rock sample is parallel to the upper surface of the sample compact 25.

In this embodiment, the number of the weight components is the same as the number of the sample pressing blocks 25, the weight components include weight rods 27 and weight blocks 29, the weight blocks 27 are of hollow cylindrical structures made of metal materials, and the weight blocks 29 are detachably mounted on the weight rods 27. Further, as shown in fig. 4 and 12, a central through hole 30 is provided at the center of the weight block 29, a weight clamping portion 28 is provided on the weight rod 27, the diameter of the central through hole 30 is equal to the diameter of the weight rod 27, the weight rod 27 can pass through the central through hole 30 of the weight block 27, and the weight clamping portion 28 fixes the weight block 27 on the weight rod 27.

Furthermore, the counterweight clamping part 28 is a bolt, a threaded hole is arranged on the counterweight rod 27, the center line of the threaded hole is perpendicular to the center line of the counterweight rod 27, and the length of the bolt is greater than the rod diameter of the counterweight rod. The counterweight clamping part 28 with the structure is simple in structure and convenient to disassemble and assemble.

Further, the number of the counter weight blocks 29 is plural, and the size and the weight of each counter weight block 29 are the same; or, the quantity of balancing weight 29 is a plurality of, and balancing weight 29 has multiple specification, and the weight of a plurality of balancing weights 29 is the ladder setting, for example 100g, 200g, 300g, 400g, 500g, or, 50g, 100g, 150g, 200g, 250g, can satisfy the counter weight demand of grinding different hardness rock samples, and it is convenient to change. The grinding and polishing loading device with the structure is provided with the independent counterweight assembly for each rock sample, can set the weight of the counterweight assembly for the rock samples with different hardness and different wear resistance degrees, realizes the simultaneous polishing of samples with various lithologies and different hardness, and has strong universality, high polishing efficiency and wide application prospect.

In this embodiment, the external dimension of the sample chuck 19 is matched with the internal cavity structure of the trimming ring 33, as shown in fig. 6 or fig. 10, the sample chuck 19 is a disc structure and has a certain thickness, 3 sample mounting holes 20 are uniformly distributed in the circumferential direction of the sample chuck 19, the cross-sectional shape of each sample mounting hole 20 is rectangular, the shape and the dimension of each rectangular sample mounting hole are slightly larger than the standard shape and the standard dimension of a rock sample, and the length × width dimension of each rectangular sample mounting hole is 45 ± 5mm × 30 ± 5 mm.

In this embodiment, the sample pressing block 25 is made of a metal material, the sample pressing block 25 and the sample mounting hole 20 have the same shape and size, the sample pressing block 25 can be seamlessly mounted in the sample mounting hole 20, and can move downwards in the sample mounting hole 20 under the action of the counterweight component in the grinding and polishing process, and the height of the sample pressing block 25 is greater than the thickness of the sample chuck 19. The sample pressing block 25 is connected with the rock sample to be ground and polished through thermoplastic resin, and the rock sample is fixed on the lower surface of the sample pressing block 25 through the thermoplastic resin, so that the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block 25.

Further, as shown in fig. 8 to 9, a positioning groove 26 is provided in the center of the top surface of the sample compact 25, and the positioning groove 26 is used to receive the lower end portion of the weight lever 27. Because the lower end of the weight rod 27 can extend into the positioning groove 26, the pressure applied by the weight component uniformly acts on the rock sample, and the grinding and polishing effects are improved.

Further, the lower surface of the sample pressing block 25 is provided with a clamping groove, the cross section of the clamping groove is in a rectangular shape with four convex sides, the length and width of the clamping groove are smaller than those of the sample mounting hole 20 and larger than those of the rock sample, thermoplastic resin is filled in the clamping groove, and the height (also the thickness) of the rock sample is larger than the depth of the clamping groove. For example, if the length × width dimension of the rectangular sample mounting hole is 45 ± 5mm × 30 ± 5mm, the length × width dimension of the card slot is 40 ± 5mm × 25 ± 5mm (length × width), since the length × width dimension of the card slot is larger than the length and width dimension of the rock sample, the thermoplastic resin can be excessively filled, the heated thermoplastic resin is in a plastic state, and the cross-sectional shape of the card slot is a rectangle with four convex sides, the thermoplastic resin is filled into the gap between the rock sample side wall and the card slot side wall, thereby fixing the rock sample on the sample press block 25. The sample pressing block 25 is provided with a clamping groove, so that on one hand, the operation of fixing the rock sample by adopting thermoplastic resin is more convenient, and the heated thermoplastic resin cannot overflow; on the other hand, the situation that the sample pressing block 25 is stained with cooled thermoplastic resin due to the fact that large resistance exists between the sample pressing block 25 and the inner wall of the sample mounting hole 20 is avoided, and the sample pressing block 25 cannot move downwards due to pressure applied by the counterweight component in the grinding and polishing process, so that the grinding and polishing effects are seriously affected.

In this embodiment, the connecting plate 22 has a rotationally symmetric structure, as shown in fig. 5, the connecting plate 22 has a circular structure, a first through hole 23 is formed in the center of the connecting plate 22, 3 second through holes 24 are uniformly formed in the connecting plate 22 along the circumferential direction, and the aperture of each second through hole 24 is equal to the diameter of the weight rod 27.

In this example, the disc trimming ring 33 is a hollow cylinder structure, the sample chuck 19 and the connecting plate 22 can be installed in the disc trimming ring 33, the diameter of the sample chuck 19 is equal to the inner diameter of the disc trimming ring 33, the connecting plate 22 is located above the sample chuck 19, and the connecting plate 22 is fixedly connected with the disc trimming ring 33 through a connecting piece, as shown in fig. 7 and 11. Furthermore, the connecting piece is a clamping jaw 35, one end of the clamping jaw 35 is fixed on the connecting plate 22, the other end of the clamping jaw is fixed with the disc trimming ring 33 through a screw, and a screw hole is formed in the upper end face of the disc trimming ring 33. The connecting plate 22 and the disc trimming ring 33 are directly fixed, and the sample chuck 19, the connecting plate 22 and the side wall of the disc trimming ring 33 form a cavity, so that the structure can ensure that the pressure applied by each counterweight component only acts on the rock sample to be ground and polished corresponding to the counterweight component, and the pressure of other samples is not influenced. The outer peripheral wall of the disc trimming ring 33 is provided with an anti-slip layer such as a rubber layer.

In order to facilitate the overall movement of the sample polishing loading device, the sample polishing loading device is further provided with a holding moving assembly, the holding moving assembly comprises a central rod 31 and a holding part, and the holding part is detachably arranged at the upper end of the central rod 31 and used for being held by a user. The lower portion of the center rod 31 is provided with a connecting plate locking portion 32, the connecting plate locking portion 32 divides the center rod 31 into an upper section and a lower section, and the size of the connecting plate locking portion 32 is larger than the aperture of the first through hole 23. The diameter of the center rod 31 is equal to the hole diameter of the first through hole 23. During installation, the upper end of the central rod 31 penetrates through the first through hole 23 of the connecting plate 22, the lower section of the central rod 31 is clamped below the connecting plate 22 by the connecting plate clamping portion 32, the clamping jaw 35 fixes the connecting plate 22 and the trimming ring 33, and when the holding portion is lifted, the sample is integrally lifted by the sample grinding and polishing loading device under the limiting effect of the clamping jaw 35 and the connecting plate clamping portion 32.

In order to make the central rod 31 in a vertical state, the center of the sample chuck 19 is provided with a central rod groove 21, the groove diameter of the central rod groove 21 is equal to the rod diameter of the central rod 31, when the sample chuck is installed, the lower end part of the lower section of the central rod 31 extends into the central rod groove 21, because the central line of the first through hole 23 of the connecting plate 22 is overlapped with the central line of the central rod groove 21 of the sample chuck 19, and the diameter of the central rod 31 is equal to the aperture of the first through hole 23 and the groove diameter of the central rod groove 21, the central rod 31 is in a vertical state.

When the connection plate 22 and the sample chuck 19 are aligned in the axial direction, the first through-hole 23 of the connection plate 22 is aligned with the center rod groove 21 of the sample chuck 19, the second through-hole 24 of the connection plate 22 is aligned with the sample mounting hole 20, and when the sample press block 25 is mounted in the sample mounting hole 20, the second through-hole 24 of the connection plate 22 is aligned with the positioning groove 26 of the top surface of the sample press block 25, that is, the center line of the first through-hole 23 coincides with the center line of the center rod groove 21, and the center line of the second through-hole 24, the center line of the sample mounting hole 20, and the center line of the sample press block 25 mounted in the sample mounting hole.

In order to ensure that the counterweight assembly only applies a vertically downward acting force to the sample pressing block 25, the second through hole 24 of the connecting plate 22 is provided with a vertical limiting part 34, and the vertical limiting part 34 is detachably and fixedly connected with the inner wall of the second through hole 24. Further, the vertical limiting part 34 is a vertical pipe, the inner diameter of the vertical pipe is equal to the diameter of the weight rod 27, the outer diameter of the vertical pipe is equal to the aperture of the second through hole 24, the weight rod 27 can be guaranteed to move in the vertical direction by the vertical limiting part 34, and then the weight component is guaranteed to apply vertical downward force to the sample pressing block 25, so that the grinding and polishing effects are improved.

Further, the lower end of the vertical pipe is provided with a convex circumferential clamping portion, the vertical pipe can penetrate through the second through hole 24 from bottom to top, the convex circumferential clamping portion is clamped below the connecting plate 22, the outer wall of the vertical pipe extending out of the second through hole 24 is clamped by the clamping piece, the connecting plate and the vertical portion are fixed relatively by the clamping piece and the convex circumferential clamping portion, and the vertical pipe is guaranteed to be in a vertical state.

In order to prevent the sample chuck 19 from falling off accidentally in the whole moving process of the sample grinding, polishing and loading device, the following two structural design modes are adopted: the first mode, the periphery wall of sample chuck 19 sets up anti-skidding portion, anti-skidding portion is protruding or rubber skid resistant course for rubber, the protruding height of rubber or the thickness of rubber skid resistant course are 1mm, it does not influence sample chuck 19 and packs into and repaiies a ring 33 or shift out and repaiies a ring 33 to set up anti-skidding portion, need exert certain power when packing into or shifting out sample chuck 19, set up anti-skidding portion and can avoid sample mill flat polishing loading attachment at the bulk movement in-process, sample chuck 19 drops from repairing a ring 33. In the second mode, an inner thread is formed on the inner wall of the central rod groove 21, an outer thread is formed at the lower end of the central rod 31, the central rod 31 is in threaded connection with the central rod groove 21, when the central rod 31 is screwed to tightly connect the central rod 31 with the central rod groove 21, and the central rod 31 is reversely screwed to separate the central rod 31 from the central rod groove 21.

It should be noted that the standard size of the rock sample is not exactly the same for different tests, but is a standard size customary in the art for a particular test, typically no larger than 40mm by 25mm and less than 10mm thick. In practice, the sample chuck 19 and associated sample compact 25 are selected to have a corresponding size according to the size of the rock sample.

The rock sample grinding and polishing method by using the sample grinding, polishing and loading device for the rock sample comprises the following steps:

step 1: the rock sample to be ground and polished is placed on the lower surface of the sample compact 25. The rock sample to be ground and polished is fixed on the lower surface of the sample pressing block 25 by using thermoplastic resin, so that the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block 25.

Specifically, the sample pressing block 25 is firstly inverted, one side of the clamping groove of the sample pressing block 25 faces upwards, the heated thermoplastic resin is filled in the clamping groove of the sample pressing block 25, and then the rock sample is placed on the thermoplastic resin. At the moment, due to the fact that the thermoplastic resin is excessively filled, the heated thermoplastic resin is in a plastic state, the section of the clamping groove is in a rectangular shape with convex four sides, and the thermoplastic resin can be filled into a gap between the side wall of the rock sample and the side wall of the clamping groove; in the process of cooling and solidifying the thermoplastic resin, the sample pressing block 25 filled with the rock sample is inverted again and placed on the horizontal platform, the surface to be ground and polished of the rock sample is downward and is in contact with the upper surface of the horizontal platform, a horizontal clamping plate is placed on the upper surface of the sample pressing block 25, the horizontal clamping plate is parallel to the horizontal platform by utilizing symmetrically arranged bolts and can clamp the sample pressing block 25 filled with the rock sample until the thermoplastic resin is cooled and solidified, the horizontal clamping plate is detached at the moment, the sample pressing block 25 fixed with the rock sample is taken out, and at the moment, the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block 25.

The reason why the thermoplastic resin is used is that: the thermoplastic resin assumes a plastic state upon heating, but is not fluid in the trivial sense, so that the sample block 25 can be inverted without regard to the flow of the thermoplastic resin; the cooled thermoplastic resin is rigid, can fix the rock sample, and keeps the posture of the rock sample, so that the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block 25, and the surfaces to be ground and polished of the same batch of samples are approximately in the same horizontal plane state; if the sample pressing block 25 is not inverted in the thermoplastic resin cooling process in the step 1, the rock sample can continue to press the thermoplastic resin into a gap between the side wall of the rock sample and the side wall of the clamping groove under the action of gravity, so that the rock sample has a settlement error, the polished surface to be ground of the rock sample cannot be guaranteed to be parallel to the upper surface of the sample pressing block 25, and the polished surfaces to be ground of the same batch of rock samples cannot be guaranteed to be approximately positioned on the same horizontal plane. In addition, only need heat thermoplastic resin again after the rock sample is tested, just can retrieve thermoplastic resin, convenient reuse, and hardly have the loss.

Step 2: the assembled rock sample grinding and polishing loading device specifically comprises the following steps:

step 2.1: the sample chuck 19 is placed on the operation platform, and the sample compact 25 with the rock sample fixed thereon is loaded into the sample mounting hole 20 of the sample chuck 19 with the surface to be ground and polished of the rock sample facing downward.

Step 2.2: the upper end of the center rod 31 passes through the first through hole 23 of the connecting plate 22, the lower section of the center rod 31 is clamped below the connecting plate 22 by the connecting plate clamping part 32, the position of the connecting plate 22 is adjusted to make the first through hole 23 aligned with the center rod groove 21 of the sample chuck 19, the lower end part of the lower section of the center rod 31 is screwed into the center rod groove 21 of the sample chuck 19 and is screwed and fixed; rotating the connecting plate 22 about the central rod 31 so that the second through-hole 24 of the connecting plate 22 is aligned with the positioning groove 26 in the top surface of the sample compact 25, passing the weight rod 27 through the second through-hole 24, and so that the end of the weight rod 27 extends into the positioning groove 26 of the sample compact 25; a weight 29 is mounted on the weight lever 27.

Step 2.3: a grip 36 is attached to the tip of the center rod 31, and the operator pulls the grip, and the entire assembled sample chuck 19, sample compact 25 to which the rock sample is fixed, connection plate 22, and weight assembly are put into the dresser ring 33, and the connection plate 22 and the upper end surface of the dresser ring 33 are fixed by the claws 35, thereby completing the assembly of the burnishing and polishing loader.

And step 3: and (4) placing the whole assembled grinding and polishing loading device on an operation tray 40 of a rock polishing machine for grinding and polishing.

Compared with the prior art, the rock sample grinding and polishing loading device provided by the embodiment fixes the rock sample on the sample pressing block by adopting thermoplastic resin, and enables the surface to be ground and polished of the rock sample to be parallel to the upper surface of the sample pressing block by clamping and inverting cooling, so that the grinding workload can be greatly reduced, the working efficiency of grinding and polishing is improved, one grinding operation can be completed within 5min, each grinding and polishing loading device can simultaneously grind and polish 3 rock samples, one rock polishing machine can simultaneously operate two grinding and polishing loading devices, and the grinding and polishing of 6 rock samples can be completed at one time. In addition, in the grinding and polishing process, each rock sample to be ground and polished is independently provided with the counterweight assembly, the counterweight assemblies with different weights can be arranged aiming at the rock samples with different lithologies, different hardness and different wear resistance degrees, and then the polishing of various samples with different lithologies and different hardness can be realized, so that the device is high in universality, high in working efficiency and wide in application prospect.

Example 3

The utility model discloses a rock polishing machine is disclosed to another concrete embodiment, and the supporting cover of rock polishing machine is equipped with the rock sample of embodiment 2 grinds the polishing loading device. As shown in fig. 13, the rock polishing machine includes a main body 37, a control assembly, a limit bracket 41 and the grinding and polishing loading devices of embodiment 2, the number of the grinding and polishing loading devices is one or more groups, preferably 2 groups, each group of the grinding and polishing loading devices is provided with 3 samples to be ground and polished; the main body 37 is provided with a water spraying assembly 38, a polishing solution dripping assembly 39, an operation tray 40 and a driving motor for driving the operation tray 40 to rotate, wherein the polishing solution dripping assembly 39 is used for dripping polishing solution into the operation tray 40, and the control assembly is arranged inside the main body 37 and used for controlling the grinding and polishing process of the rock sample; the limiting bracket 41 is used for limiting the grinding and polishing loading device at a certain position of the operation tray 40, the limiting bracket 41 is provided with two rollers 42 and a roller motor used for driving the rollers 42 to rotate, the rollers 42 are tangent to the outer peripheral wall of the trimming ring 33 and drive the sample chuck 19 to rotate, and the rotating direction of the sample chuck 19 is opposite to that of the operation tray 40.

In practice, 3 samples to be ground and polished are fixed in the sample mounting holes 20 of the sample chuck 19 according to the method of example 2, a rock sample loading device is placed on the operation tray 40, and the surface to be ground and polished of the rock sample is contacted with the operation tray 40. The spacing bracket 41 is adjusted to make the roller 42 tangent with the dressing ring 33. The rotating speed and the rotating time of the operation tray 40 are set through the control assembly, parameters such as the speed and the dropping time of the polishing solution dropping assembly 39 are set, the rock polishing machine is started to grind and polish the rock sample, the sample chuck 19 generates a speed difference with the rotating operation tray 40 under the combined action of the disc repairing ring 33 and the roller 42, the water spraying assembly 38 continuously sprays water to the rotating operation tray 40 in the grinding process, the polishing solution dropping assembly 39 continuously drops the polishing solution to the rotating operation tray 40, and after the rock polishing machine works for a set time, the rock polishing machine is closed to finish grinding and polishing of the rock sample.

When the polishing surface to be ground of the rock sample is ground and polished, the polishing liquid is dripped on the polishing surface to be ground of the rock sample through the peristaltic pump of the polishing liquid dripping component 39; a magnetic stirring rotor is placed in the polishing liquid container of the polishing liquid dropping unit 39, and the polishing liquid container is placed on a magnetic stirrer to keep stirring the polishing liquid. The polishing solution can be kept in a mixed state all the time by using a magnetic stirring mode, effective components in the polishing solution are prevented from precipitating, and the polishing efficiency and effect are improved.

Compared with the prior art, the rock polishing machine that this embodiment provided, the supporting two sets of rock sample loading devices that are equipped with, 3 rock samples of every rock sample loading device of group can fixed mounting, once can accomplish the abrasive polishing of 6 rock samples simultaneously, is showing and is promoting polishing work efficiency, has alleviateed operator's intensity of labour by a wide margin. Through setting up the control assembly, can rock polisher accomplish the polishing process automatically, easy operation can be used for the polishing of all kinds of geological samples, even if there is not the researcher of system appearance experience also can obtain high-quality geological rock sample by oneself, has reduced experiment consumptive material cost, and application prospect is extensive.

Example 4

The utility model discloses a rock sample system is disclosed in another concrete embodiment, and this system is including the rock sample cutting equipment of embodiment 1 and the rock polishing machine of embodiment 3, and the supporting cover of rock polishing machine is equipped with the rock sample grinding and polishing loading device of embodiment 2.

In the sample preparation process by using the rock sample preparation system of the embodiment, the rock sample cutting device in embodiment 1 is used to cut the rock sample, and the rock sample polishing loading device in embodiment 2 and the rock polishing machine in embodiment 3 are used to polish and polish the rock sample.

Specifically, the rock sample preparation method, as shown in fig. 14, includes the following steps:

step 1: and cutting the collected rock by using rock sample cutting equipment to obtain a rock sample to be polished.

Step 1.1: and (5) collecting rocks.

Usually, a test target rock needs to be collected on site, in order to facilitate cutting, the collected rock should not be too large, the too large rock should be firstly and preliminarily crushed into small rocks, the characteristic dimension of the small rocks should be larger than the standard dimension of a rock sample and not larger than 3 times of the standard dimension, namely, the small rocks should be completely placed in a cuboid space corresponding to 3 times of the length, width and thickness of the standard dimension of the rock sample. The embodiment of the utility model provides an in avoid the too big work load that increases the rock cutting of rock size of collection to improve the system appearance efficiency of rock sample, in addition, if too big also do not benefit to the fixing of rock sample cutting equipment to the rock of the size of rock.

Step 1.2: and (5) cutting rocks.

The rock sample cutting device in example 1 was used to cut the collected rock and to ensure that the size of the cut rock sample to be polished was slightly larger than the standard size of the rock sample.

Specifically, the method comprises the following steps:

step 1.2.1: loosening a clamp locking screw, placing the collected rock on the fixing table 4, enabling one surface of the cut rock to abut against the baffle plate 11, adjusting a clamping jaw of the rock clamp 12, clamping the rock, tightening the clamp locking screw at the moment, and fixing the relative position of the clamping jaw and the baffle plate 11; and then the position of the baffle 11 relative to the fixed platform 4 is adjusted along the baffle sliding chute 13, the fixing screw of the baffle 11 is screwed down, the relative position of the baffle 11 and the fixed platform 4 is fixed, and the collected rock is fixed on the fixed platform 4. In this process it should be ensured that the circular saw 17 is able to cut the harvested rock into a sufficiently large cutting plane above the cutting relief groove 18.

Step 1.2.2: rotating the fixed table 4 to enable the arc sliding block 3 to slide in the arc sliding rail 2, so that the azimuth angle of the rock relative to the circular saw 17 is adjusted through the fixed table 4, and the jacking screw is screwed tightly to fix the azimuth angle; and the rotary adjusting block 9 is twisted, the screw rod 6 is rotated, and the nut is enabled to move up and down along the screw rod 6 and the nut sliding rail 10, so that the pitch angle of the rock relative to the circular saw 17 is adjusted through the fixed platform 4, the rotary adjusting block 9 is stopped being twisted, and the pitch angle is fixed. So that the fence 11 is parallel to the circular saw 17.

Step 1.2.3: cover transparent shell, set up the cutting position and the feed amount of annular saw 17 on the main control system, start annular saw 17, the completion is to the cutting back of a cutting plane of the rock of gathering, closes annular saw 17.

Step 1.2.4: and (3) taking the rock down, rotating the rock handle, repeating the steps 2.1 to 2.3, and ensuring that the cut surface which is just cut is abutted against the rock clamp 12 or the baffle 11 until the rock is cut into a rectangular flaky rock sample with uniform thickness.

Step 1.2.5: steps 1.2.1 to 1.2.4 are repeated until cutting of all rock samples is completed.

Step 2: and (4) loading the cut rock sample to be ground and polished into a rock sample grinding and polishing loading device, and grinding and polishing by using a rock polishing machine.

Step 2.1: the rock sample to be ground and polished is fixed on the lower surface of the sample pressing block 25 by using thermoplastic resin, so that the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block 25.

Specifically, the sample pressing block 25 is firstly inverted, one side of the clamping groove of the sample pressing block 25 faces upwards, the heated thermoplastic resin is filled in the clamping groove of the sample pressing block 25, and then the rock sample is placed on the thermoplastic resin. In the process of cooling and solidifying the thermoplastic resin, the sample pressing block 25 filled with the rock sample is inverted again and placed on the horizontal platform, the surface to be ground and polished of the rock sample is downward and is in contact with the upper surface of the horizontal platform, a horizontal clamping plate is placed on the upper surface of the sample pressing block 25, the horizontal clamping plate is parallel to the horizontal platform by utilizing symmetrically arranged bolts and can clamp the sample pressing block 25 filled with the rock sample until the thermoplastic resin is cooled and solidified, the horizontal clamping plate is detached at the moment, the sample pressing block 25 fixed with the rock sample is taken out, and at the moment, the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block 25.

Step 2.2: the rock sample grinding and polishing loading device of the assembling embodiment 2 specifically comprises the following steps:

step 2.2.1: the sample chuck 19 is placed on the operation platform, and the sample compact 25 with the rock sample fixed thereon is loaded into the sample mounting hole 20 of the sample chuck 19 with the surface to be ground and polished of the rock sample facing downward.

Step 2.2.2: the upper end of the center rod 31 passes through the first through hole 23 of the connecting plate 22, the lower section of the center rod 31 is clamped below the connecting plate 22 by the connecting plate clamping part 32, the position of the connecting plate 22 is adjusted to make the first through hole 23 aligned with the center rod groove 21 of the sample chuck 19, the lower end part of the lower section of the center rod 31 is screwed into the center rod groove 21 of the sample chuck 19 and is screwed and fixed; rotating the connecting plate 22 about the central rod 31 so that the second through-hole 24 of the connecting plate 22 is aligned with the positioning groove 26 in the top surface of the sample compact 25, passing the weight rod 27 through the second through-hole 24, and so that the end of the weight rod 27 extends into the positioning groove 26 of the sample compact 25; a weight 29 is mounted on the weight rod 27 and the weight assembly applies a vertically downward pressure to the sample compact 25.

Step 2.2.3: a grip 36 is attached to the tip of the center rod 31, and the operator pulls the grip, and the entire assembled sample chuck 19, sample compact 25 to which the rock sample is fixed, connection plate 22, and weight assembly are put into the dresser ring 33, and the connection plate 22 and the upper end surface of the dresser ring 33 are fixed by the claws 35, thereby completing the assembly of the burnishing and polishing loader.

Step 2.3: and (4) placing the whole assembled grinding and polishing loading device on an operation tray 40 of a rock polishing machine for grinding and polishing.

And 2.4, repeating the steps 2.1 to 2.3 until the grinding and polishing operation on all the rock samples is finished. After the follow-up test to the rock sample is accomplished, heat the solid state thermoplastic resin who is connected with the rock sample, until thermoplastic resin is in the plasticity state, retrieve thermoplastic resin for thermoplastic resin can cyclic utilization, reduce the experiment cost, accord with green experiment theory.

And 2, in order to compare the working efficiency, cutting the same large rock to obtain dozens of rock samples, selecting 12 rock samples to be ground and polished, and performing a comparison experiment in two groups. The existing method in the field is used for manually grinding and polishing 6 calcite samples obtained by cutting the same rock one by one, wherein 20min is averagely consumed for grinding and polishing a single calcite sample, 10min is averagely consumed for other procedures of the single calcite sample, the total time is 180min, and the yield is 67%. Use the utility model discloses the method comes to grind flat the polishing to 6 certain calcite samples in addition, only needs once to grind the polishing operation and just accomplishes 6 rock sample's abrasive polishing, grinds flat 5min when polishing usefulness, 20min when other processes are shared, and the grinding flat polishing of 6 calcite samples is accomplished to 25min when total time is spent to the rock sample that this method was made, polishing effect is good, and the yield is 100%. Obviously, the method of the embodiment is used for preparing the rock sample, so that the working time is greatly shortened, and the working efficiency and the yield are improved.

Compared with the prior art, the rock sample preparation method provided by the embodiment has at least one of the following beneficial effects:

(1) through the adoption of the rock sample cutting equipment with the pitch angle adjusting mechanism and the azimuth angle adjusting mechanism, the pitch angle and the azimuth angle of the rock relative to the circular saw can be adjusted, so that a rectangular flaky rock sample with more uniform thickness can be cut out, the workload of follow-up grinding operation is reduced, and the cutting sample preparation efficiency of the rock sample is improved.

(2) The rock sample is fixed on the sample pressing block by adopting thermoplastic resin, and the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block by clamping and inverted cooling, so that the surfaces to be ground and polished of the same batch of rock samples are approximately positioned on the same horizontal plane, the grinding workload is greatly reduced, and the grinding and polishing efficiency is improved.

(3) In the grinding and polishing process, each rock sample to be ground and polished is independently provided with the counterweight component, the counterweight components with different weights can be arranged aiming at the rock samples with different lithologies, different hardness and different wear resistance degrees, and then the polishing of various samples with different lithologies and different hardness can be realized, so that the working efficiency and the sample preparation yield are greatly improved, and the application prospect is wide.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. The rock sample grinding and polishing loading device is characterized by comprising a sample chuck (19), a connecting plate (22), a sample pressing block (25), a counterweight component and a repairing disc ring (33);

the sample chuck (19) and the connecting plate (22) can be detachably arranged in the repair disk ring (33), and the connecting plate (22) is positioned above the sample chuck (19);

the sample chuck (19) is provided with a sample mounting hole (20);

the sample pressing block (25) can be arranged in the sample mounting hole (20);

the connecting plate (22) is provided with a balance weight through hole, and the balance weight component can apply pressure to the sample pressing block (25) and a rock sample below the sample pressing block (25) through the balance weight through hole.

2. The rock sample burnishing and polishing loading device of claim 1, wherein the weight assembly comprises a weight rod (27) and a weight (29), the weight (29) being detachably mounted on the weight rod (27).

3. The rock sample burnishing and polishing loading device of claim 1, wherein the sample compact (25) is capable of being installed seamlessly within the sample installation hole (20);

during the grinding and polishing process, the sample pressing block (25) can move downwards in the sample mounting hole (20) under the action of pressure exerted by the counterweight component.

4. The rock sample grinding and polishing loading device according to any one of claims 1 to 3, wherein the center of the top surface of the sample pressing block (25) is provided with a positioning groove (26).

5. The rock sample grinding and polishing loading device according to claim 1, characterized in that the rock sample is fixed on the lower surface of the sample pressing block (25) by using thermoplastic resin, and the surface to be ground and polished of the rock sample is parallel to the upper surface of the sample pressing block (25).

6. The rock sample grinding and polishing loading device according to claim 5, characterized in that the lower surface of the sample pressing block (25) is provided with a clamping groove for mounting the rock sample, and the clamping groove is filled with thermoplastic resin.

7. The rock sample burnishing and polishing loading device of claim 1, further comprising a gripping and moving assembly comprising a central rod (31) and a gripping portion.

8. A rock sample preparation system, which is characterized by comprising a rock sample cutting device and a rock polishing machine, wherein the rock polishing machine is provided with a rock sample grinding and polishing loading device according to any one of claims 1 to 7.

9. The rock sample preparation system of claim 8, wherein the rock sample cutting apparatus comprises: the device comprises a cutting mechanism, a rock fixing mechanism and an attitude adjusting mechanism; the cutting mechanism is movably arranged on a base (1) of the rock sample cutting equipment;

the attitude adjusting mechanism comprises a fixed table (4), an azimuth angle adjusting mechanism and a pitch angle adjusting mechanism; the bottom surface of the fixed table (4) is connected with the base (1) through a spherical hinge (5).

10. The rock sample preparation system according to claim 8, wherein the rock polishing machine comprises a body (37), a control assembly, a limit bracket (41) and the burnishing and polishing loading device;

the main body (37) is provided with a water spraying assembly (38), a polishing solution dripping assembly (39), an operation tray (40) and a driving motor for driving the operation tray (40) to rotate;

the polishing solution dripping component (39) is used for dripping polishing solution into the operation tray (40);

the control component is arranged inside the main body (37) and is used for controlling the grinding and polishing process of the rock sample;

spacing support (41) are equipped with two gyro wheels (42) and are used for drive roller (42) pivoted gyro wheel motor, gyro wheel (42) with it is tangent to repair the periphery wall of dish ring (33), drive sample chuck (19) are rotatory, the direction of rotation of sample chuck (19) is opposite with the direction of rotation of operation tray (40).

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