CN210499657U

CN210499657U - Sample grinding device

Info

Publication number: CN210499657U
Application number: CN201921568840.2U
Authority: CN
Inventors: 何其锦; 张明亚; 钱健清; 卞亚飞; 杨吉
Original assignee: Anhui University of Technology AHUT
Current assignee: Anhui University of Technology AHUT
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-05-12
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a grind appearance device belongs to metal specimen detection technical field. The device comprises a sample grinding unit, a sample mounting unit and a water injection unit, wherein the sample grinding unit comprises a roller shaft connected with a transmission belt, the roller shaft is driven by a driving motor, and the surface of the transmission belt is provided with abrasive paper; the sample mounting unit is arranged above the abrasive paper and comprises a guide rail, a mounting part and a sample fixing part, the sample fixing part is slidably mounted on the guide rail through the mounting part, and the sample fixing part is rotatably arranged on the mounting part through a rotating motor; the water injection unit comprises a water injection spray head and a water tank arranged below the sample grinding unit. The utility model realizes automatic unidirectional polishing of the sample; and the sample can be sanded in different areas; meanwhile, the sample automatically rotates in the polishing process; in addition, the water injection unit realizes automatic cooling in the polishing process; the polishing device is high in automation degree and has a good polishing effect.

Description

Sample grinding device

Technical Field

The utility model relates to a metal specimen detects technical field, and more specifically says, relates to a grind appearance device.

Background

Metallographic analysis is one of the means for examining and analyzing materials, and aims to reveal the true structure of the material. For metallographic analysis, it is necessary to prepare a metallographic specimen which can be used for microscopic examination. In metallographic analysis, the preparation of samples is very important; the sample is prepared by the method, wherein the grinding process of the sample is very important, the sand paper is flatly laid on a thick glass plate during grinding, the sand paper is pressed by the left hand, the sample is held by the right hand, the grinding surface faces downwards and is in contact with the sand paper, the sample is pushed forwards under the action of slight pressure, the force is uniform, the force is required to be stable, and otherwise, the grinding mark is too deep and the grinding surface of the sample is deformed. The sample can not contact with the abrasive paper when retreating, and the one-way repeated operation is carried out until the old grinding marks on the grinding surface are removed and the new grinding marks are uniform and consistent. When the next finer sand paper is replaced, the abrasive dust and sand particles on the sample are cleaned, and the sample is rotated by 90 degrees to ensure that the new and old grinding marks are vertical.

At present, all manual polishing is carried out when gold is polished in a daily laboratory, abrasive paper needs to be continuously replaced, water is flushed and the abrasive paper is polished on one side of a water pool, time and labor are wasted, especially small-sized samples are polished, and manual operation is very labor-consuming. And often, the sample surface is unevenly stressed to cause the situation that one end is higher and the other end is lower and is not on the same horizontal plane, or the hand is injured by over-force and violence.

Through retrieval, the patent name is a grinding and polishing device (application number: 2017216906778, application date: 2017.12.07), the technical scheme of the patent application comprises a main body, a control system, a rotating motor, a driving wheel and a driven wheel are installed on the main body, the control system is connected with the rotating motor, the rotating motor is connected with the driving wheel, the driving wheel is connected with the driven wheel through a conveying belt, abrasive paper with different thicknesses is fixedly installed on the conveying belt and perpendicular to the running direction of the conveying belt, the control system controls the rotating motor to rotate, the rotating motor drives the driving wheel to rotate, and the driving wheel drives the driven wheel to rotate through the conveying belt, so that the abrasive paper is driven. This patent application realizes the grinding and polishing of metallographic specimen through abrasive paper rotation, does not artificially grind and polishes, but the technical scheme of this patent still can not realize that the metallographic grinds the in-process automatic switching-over and the automatic water injection refrigerated process of polishing.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to provide a sample grinding device aiming at the technical problems of low automation degree and poor metallographic sample grinding effect in the metallographic sample grinding process in the prior art, the sample grinding device realizes automatic one-way grinding of a sample through one-way motion abrasive paper, the arranged water injection spray head can realize automatic water spraying, and the rotatable sample can realize automatic rotation of the sample; grind appearance device degree of automation is high, and has better effect of polishing.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a sample grinding device, which comprises a sample grinding unit, a sample mounting unit and a water injection unit, wherein the sample grinding unit comprises a plurality of roll shafts, and at least one roll shaft is provided with a driving motor; the roll shafts are connected through a transmission belt, and sand paper is arranged on the surface of the transmission belt; the sample mounting unit is arranged above the abrasive paper and comprises a guide rail, a mounting part and a sample fixing part, the guide rail is arranged perpendicular to the motion direction of the abrasive paper, the sample fixing part is slidably mounted on the guide rail through the mounting part, and the sample fixing part is rotatably arranged on the mounting part through a rotating motor; the water injection unit comprises a water injection nozzle and a water tank, the water injection nozzle is arranged on the side of the sample fixing piece, and the water tank is arranged below the sample grinding unit.

Preferably, the roll shafts comprise a first roll shaft and a second roll shaft, the first roll shaft and the second roll shaft are in transmission connection through a transmission belt, and sand paper is arranged on the outer surface of the transmission belt.

Preferably, sandpaper provided with different grit sizes is arranged in sequence in a direction perpendicular to the movement of the conveyor belt, and the grit sizes of the sandpaper are arranged in sequence from small to large or from large to small.

Preferably, the installation part is a telescopic column, the sample fixing member is arranged on the lower end face of the telescopic column, and the height of the sample fixing member is lifted or lowered through the telescopic column.

Preferably, a plurality of guide rails are arranged above the sand paper along the movement direction of the sand paper, the guide rails are arranged perpendicular to the movement direction of the sand paper, and each guide rail is provided with a sample fixing piece.

Preferably, the sample fixing member is a fixing cylinder, a fixing screw penetrates through a side wall of the fixing cylinder, and the sample is fixed in a cylinder cavity of the fixing cylinder through the fixing screw.

Preferably, a baffle is arranged on the side part of the abrasive paper between the roll shafts, and the upper end of the baffle is higher than the height of the abrasive paper; the lower end of the baffle plate is arranged corresponding to the water tank.

Preferably, at least 3 fixing screws are arranged along the circumferential direction of the side wall of the fixing barrel, and the fixing screws are uniformly arranged along the circumferential direction of the side wall of the fixing barrel.

Preferably, the upper end of the baffle plate is provided with an upper shielding part, and the upper shielding part extends from the upper end of the baffle plate to the direction of the abrasive paper.

Preferably, the guide rail further comprises a second guide rail, the second guide rail is perpendicular to the movement direction of the abrasive paper, and the water injection nozzle is arranged on the second guide rail in a sliding mode.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following apparent effect:

the utility model discloses a sample grinding device, which comprises a sample grinding unit, a sample mounting unit and a water injection unit, wherein the sample grinding unit comprises a plurality of roll shafts, and at least one roll shaft is provided with a driving motor; the roll shafts are connected through a transmission belt, and sand paper is arranged on the surface of the transmission belt; the sample mounting unit is arranged above the abrasive paper and comprises a guide rail, a mounting part and a sample fixing part, the guide rail is arranged perpendicular to the motion direction of the abrasive paper, the sample fixing part is slidably mounted on the guide rail through the mounting part, and the sample fixing part is rotatably arranged on the mounting part through a rotating motor; the water injection unit comprises a water injection nozzle and a water tank, the water injection nozzle is arranged on the side edge of the sample fixing piece, and the water tank is arranged below the sample grinding unit; the roll shaft rotates in a single direction to drive the abrasive paper to move in a single direction, and the sample is automatically polished in a single direction; the sample fixing piece is arranged on the guide rail to realize the grinding of the sample on different areas of abrasive paper, and the sample is rotatably arranged through the rotating motor to realize the automatic rotation of the sample in the grinding process; in addition, the water injection unit realizes automatic cooling in the polishing process, and the polishing device has high automation degree and better polishing effect.

Drawings

Fig. 1 is a schematic structural view of a sample grinding device of the present invention;

fig. 2 is a side view of a sample grinding device according to the present invention;

fig. 3 is a schematic diagram of an arrangement of sandpaper of a sample grinding device according to the present invention;

fig. 4 is a schematic view of a sample installation of a sample grinding device according to the present invention;

fig. 5 is a schematic structural diagram of an embodiment 2 of a sample grinding apparatus according to the present invention.

The reference numerals in the schematic drawings illustrate:

101. a first roller shaft; 102. a second roller shaft; 103. a drive motor;

210. sand paper; 211. first mesh grade sandpaper; 212. second-mesh-grade abrasive paper; 213. third-mesh-grade abrasive paper; 220. a baffle plate; 221. a side shielding part; 222. an upper shielding portion;

311. a first guide rail; 312. a second guide rail; 321. an installation part; 330. a sample holder; 331. fixing screws; 332. a rotating electric machine; 340. a sample; 350. a water injection nozzle;

400. a water tank; 410. a water baffle.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and the like, referred to in the present specification, are used for clarity of description only, and are not used to limit the implementable scope, and changes or adjustments of the relative relationship thereof are also regarded as the implementable scope of the present invention without substantial changes in the technical content; in addition, the embodiments of the present invention are not independent of each other, but can be combined.

Example 1

As shown in fig. 1 to 4, the sample grinding device of the present embodiment includes a sample grinding unit, a sample mounting unit, and a water injection unit, wherein the sample grinding unit includes a plurality of roller shafts, and at least one of the roller shafts is provided with a driving motor 103; the roller shafts are connected through a transmission belt, the roller shafts comprise a first roller shaft 101 and a second roller shaft 102 in the embodiment, the first roller shaft 101 is connected with the second roller shaft 102 through the transmission belt, a driving motor 103 is connected with the first roller shaft 101, the driving motor 103 drives the first roller shaft 101 to rotate in a rotating mode, and the second roller shaft 102 is driven to rotate under the transmission effect of the transmission belt. The belt surface is provided with sandpaper 210, which sandpaper 210 may be adhesively mounted to the belt surface. Through the unidirectional rotation of drive belt, realize abrasive paper 210's unidirectional movement, and then realize the automatic one-way polishing of sample on abrasive paper.

In addition, in the embodiment, the sand papers 210 with different mesh levels can be sequentially arranged along the direction perpendicular to the movement direction of the conveyor belt, and the mesh levels of the sand papers 210 are sequentially arranged from small to large or from large to small, in this embodiment, the first mesh level sand paper 211, the second mesh level sand paper 212 and the third mesh level sand paper 213 are sequentially installed, and the mesh numbers of the first mesh level sand paper 211, the second mesh level sand paper 212 and the third mesh level sand paper 213 are respectively 150 meshes, 320 meshes and 800 meshes. Through this setting, only need move the position of sample on abrasive paper 210 in a direction, just can realize the sample "by the process of polishing to thin" thick, need not change abrasive paper 210 at the in-process of polishing, degree of automation is high for operating personnel operates more conveniently.

The sample mounting unit is disposed above the sandpaper 210, and includes a guide rail disposed perpendicular to a moving direction of the sandpaper 210, a mounting portion 321, and a sample holder 330 slidably mounted on the guide rail through the mounting portion 321. The guide rail provided with the sample fixing member 330 in this embodiment can be referred to as a first guide rail 311, and through this arrangement, the sample fixing member 330 can move in the direction of the first guide rail 311, so that the position of the sample on the sandpaper 210 is changed, the sample is prevented from being polished only in a small-range fixing area on the sandpaper 210, the polishing effect is improved, and the full utilization of the sandpaper 210 is realized.

In addition, in this embodiment, the mounting portion 321 is a telescopic column, the sample fixing member 330 is disposed on a lower end surface of the telescopic column, and the height of the sample fixing member 330 is raised or lowered by the telescopic column; this facilitates adjustment of the position of the sample holder 330 and mounting or dismounting of the sample on the sample holder 330.

The sample holder 330 is rotatably provided on the mounting portion 321 by a rotary motor 332; in the requirement of metallography step of polishing, need polish the sample once more after polishing for a certain time and rotate 90, drive the rotatory fixed angle of sample mounting 330 through the rotation of rotating electrical machines 332 in this embodiment, realized the automatic rotation of sample.

It should be further noted that the sample fixing member 330 is a fixing cylinder, a fixing screw 331 is disposed through a side wall of the fixing cylinder, and the sample 340 is fixed in a cylinder cavity of the fixing cylinder by the fixing screw 331; at least 3 fixing screws 331 are arranged along the circumferential direction of the side wall of the fixing cylinder, and the fixing screws 331 are uniformly arranged along the circumferential direction of the side wall of the fixing cylinder; in this embodiment, 4 fixing screws 331 are uniformly arranged along the circumferential direction of the sidewall of the fixing cylinder, when a sample needs to be installed, the fixing screws 331 are screwed out by a section, the sample is placed in the fixing cylinder, the fixing screws 331 are screwed into the fixing cylinder, and the sample is fixed on the sample fixing member 330 by the pressing action of the end portions of the fixing screws 331.

The water injection unit includes a water injection nozzle 350 and a water tank 400, the water injection nozzle 350 is disposed at a side of the sample holder 330, preferably in a moving direction of the sandpaper 210, and the water injection nozzle 350 is aligned with the sample holder 330 such that water injected from the water injection nozzle 350 can sufficiently cool the sample on the sample holder 330 contacting the sandpaper 210. In addition, the guide rail further comprises a second guide rail 312, the second guide rail 312 is perpendicular to the movement direction of the abrasive paper, the water injection nozzle 350 is arranged on the second guide rail 312 in a sliding mode, the position of the water injection nozzle 350 can be changed along the second guide rail 312 due to the arrangement, and therefore the water injection nozzle 350 can spray water along with the sample fixing piece 330, on one hand, the cooling effect is better, and on the other hand, the using amount of cooling water is reduced.

It should be noted that the water sprayed from the water spray nozzle 350 is sprayed on the sandpaper 210, so that the water is splashed along with the movement of the sandpaper, and in order to ensure the cleanness of the operation site, the water tank 400 is provided in this embodiment, and the water tank 400 is installed below the sample grinding unit and is used for collecting the water falling from the sandpaper 210. And a water baffle 410 is arranged on one side of the water tank 400 close to the motion terminal of the sandpaper 210, namely, on one side close to the second roller 102 in this embodiment, and the water baffle 410 is arranged to block water splashed by the motion terminal of the sandpaper 210, so that the splashed water can be collected in the water tank 400.

It should be noted that in this embodiment, a baffle 220 is disposed on a side portion of the sandpaper 210 between the rollers, the baffle 220 includes a side blocking portion 221, and an upper end of the baffle 220 is higher than the height of the sandpaper 210; the lower end of the baffle 220 is arranged corresponding to the water tank 400; on one hand, the side shielding part 221 on the baffle 220 can avoid the position of the conveyor belt from shifting, and on the other hand, the side shielding part can play a role in blocking the cooling water from splashing; the upper end of the baffle 220 is provided with an upper shielding portion 222, the upper shielding portion 222 extends from the upper end of the baffle 220 to the direction of the sandpaper 210, and the upper shielding portion 222 arranged above can prevent the cooling water from splashing upwards at the side of the sandpaper 210, so that the blocking effect of the baffle 220 is further improved.

It should be noted that the sample grinding unit, the sample mounting unit and the water injection unit are respectively mounted on a support frame, and the support frame is used for providing support for the sample grinding unit, the sample mounting unit and the water injection unit and fixing the relative positions of the sample grinding unit, the sample mounting unit and the water injection unit. And the above-mentioned driving motor 103 and the rotating motor 332 are connected to an external power source.

Example 2

The present embodiment is substantially the same as embodiment 1, except that the guide rails in this embodiment include a first guide rail 311, the first guide rail 311 is disposed along a direction perpendicular to the moving direction of the sandpaper 210, and a plurality of first guide rails 311 are disposed above the sandpaper 210 in the moving direction of the sandpaper 210, and 3 guide rails are disposed in this embodiment, the guide rails are disposed perpendicular to the moving direction of the sandpaper 210, and each guide rail is provided with a sample fixing member 330. Through the setting of a plurality of first guide rails 311 and sample mounting 330, polish a plurality of samples simultaneously when realizing that the single is polished, improve polishing efficiency greatly.

The invention has been described above in detail with reference to specific exemplary embodiments. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined by the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to illustrate the present state of the art and the meaning of the present development and is not intended to limit the present invention or the present application and the field of application of the present invention.

More specifically, although exemplary embodiments of the invention have been described herein, the invention is not limited to these embodiments, but includes any and all embodiments modified, omitted, such as combinations between various embodiments, adapted changes and/or substitutions as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the invention should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims

1. The sample grinding device is characterized by comprising a sample grinding unit, a sample mounting unit and a water injection unit, wherein the sample grinding unit comprises a sample grinding unit body and a sample mounting unit body

The sample grinding unit comprises a plurality of roll shafts, wherein at least one roll shaft is provided with a driving motor (103); the roll shafts are connected through a transmission belt, and sand paper (210) is arranged on the surface of the transmission belt;

the sample mounting unit is arranged above the sand paper (210), and comprises a guide rail, a mounting part (321) and a sample fixing part (330), wherein the guide rail is arranged perpendicular to the movement direction of the sand paper (210), the sample fixing part (330) is slidably mounted on the guide rail through the mounting part (321), and the sample fixing part (330) is rotatably arranged on the mounting part (321) through a rotating motor (332);

the water injection unit comprises a water injection nozzle (350) and a water tank (400), the water injection nozzle (350) is arranged on the side edge of the sample fixing piece (330), and the water tank (400) is arranged below the sample grinding unit.

2. A sample grinding device according to claim 1, characterized in that the rollers comprise a primary roller (101) and a secondary roller (102), the primary roller (101) and the secondary roller (102) being in driving connection with each other by means of a belt, the outer surface of which is provided with sandpaper (210).

3. A dressing apparatus according to claim 1, characterized in that coated abrasives (210) of different grit sizes are arranged in succession perpendicular to the direction of movement of the conveyor belt, and that the grit sizes of the coated abrasives (210) are arranged in succession from smaller to larger or from larger to smaller.

4. A sample-grinding apparatus according to claim 1, characterized in that the mounting part (321) is a telescopic column, on the lower end face of which the sample holder (330) is arranged, and the height of the sample holder (330) is raised or lowered by the telescopic column.

5. A dressing apparatus according to claim 1, wherein the guide comprises a first guide (311), the first guide (311) being arranged perpendicular to the direction of movement of the coated abrasive (210), and wherein a plurality of first guides (311) are arranged above the coated abrasive (210) in the direction of movement of the coated abrasive (210), the guides being arranged perpendicular to the direction of movement of the coated abrasive (210), each guide being provided with a respective sample holder (330).

6. The sample grinding device as claimed in claim 1, wherein the sample fixing member (330) is a fixing cylinder, a fixing screw (331) is arranged through the side wall of the fixing cylinder, and the sample (340) is fixed in the cylinder cavity of the fixing cylinder through the fixing screw (331).

7. A sample grinding apparatus according to claim 1, wherein a baffle (220) is provided at the side of the coated abrasive (210) between the rollers, and the upper end of the baffle (220) is higher than the coated abrasive (210); the lower end of the baffle (220) is arranged corresponding to the water tank (400).

8. A sample grinding device as claimed in claim 6, wherein at least 3 fixing screws (331) are arranged along the circumferential direction of the side wall of the fixing cylinder, and the fixing screws (331) are uniformly arranged along the circumferential direction of the side wall of the fixing cylinder.

9. A sample-grinding apparatus according to claim 7, characterized in that the upper end of the baffle (220) is provided with an upper shield (222), the upper shield (222) extending from the upper end of the baffle (220) in the direction of the coated abrasive (210).

10. A sample-grinding apparatus according to any one of claims 1 to 9, characterized in that the guide further comprises a second guide (312), the second guide (312) being arranged perpendicular to the direction of movement of the coated abrasive, the water injection nozzle (350) being slidably arranged on the second guide (312).