CN215788944U

CN215788944U - Metallography grinds and throws dish

Info

Publication number: CN215788944U
Application number: CN202121982362.7U
Authority: CN
Inventors: 杨欢; 陈雪梅; 卢虹宇; 李文进; 刘倩
Original assignee: Jiahua Special Cement Co ltd
Current assignee: Jiahua Special Cement Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-02-11
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a metallographic grinding and polishing disk which comprises an object stage and a disk assembly, wherein the object stage is fixedly arranged in a grinding box of a grinding and polishing machine base, the disk assembly consists of an inner disk positioned in the center of the object stage and a plurality of outer circular rings sequentially sleeved outside the inner disk from inside to outside, the inner disk and the outer circular rings are detachably arranged on the object stage, and grinding and polishing media with different granularities are arranged on the upper surfaces of the inner disk and the outer circular rings. According to the utility model, the grinding and polishing media with different granularities are arranged on the disc assembly consisting of the inner disc and the outer ring, so that the grinding and polishing process can be completed under the condition of not replacing the grinding and polishing disc or the grinding and polishing media, thereby realizing the automation of the whole processing process, reducing the working strength of operators and improving the working efficiency.

Description

Metallography grinds and throws dish

Technical Field

The utility model relates to a metallographic grinding and polishing disc, in particular to a grinding and polishing disc for a metallographic grinding and polishing machine, and belongs to the field of metallographic specimen preparation devices.

Background

In the preparation process of the metallographic specimen, the specimen needs to be ground and polished, and a metallographic specimen grinding and polishing machine is usually adopted for completing the preparation process. The automatic metallographic grinding and polishing machine sold on the market at present mainly comprises a single disc and a double disc, when the automatic metallographic grinding and polishing machine is used, the grinding disc or the polishing disc needs to be replaced, so that various processes of coarse grinding, fine grinding, dry grinding, wet grinding, polishing and the like of various samples can be completed, and the whole grinding and polishing process cannot be completed automatically. For example, two automatic metallographic polishing machines need to be stopped after the sand paper is ground, and then the sand paper and the polishing cloth with fine granularity are replaced, so that the use is inconvenient, and the processing efficiency is further influenced.

For solving the above-mentioned condition, the utility model discloses a utility model patent that publication number is CN208099976U discloses an automatic grinding device of metallography, the device pastes on its mill that uses and is equipped with five at least concentric annular abrasive paper, the granularity of abrasive paper is increased in proper order or is reduced in proper order from inside to outside, can make the sample remove high-grained abrasive paper from low-grained abrasive paper in proper order, accomplish many times automatically and polish, the upper surface of adjacent abrasive paper, high-grained abrasive paper is less than low-grained abrasive paper and can ensures that the sample can not block when striding the granularity, the controller can be according to the actual need adjust when polishing of sample on each graininess abrasive paper with the speed of polishing, abrasive paper adopts the mode of pasting to set up on the mill, change after the convenient wearing and tearing. However, in practical operation, the grinding disc in the shape of concentric steps is prone to contact edge collision or even ejection danger during sample grinding and polishing due to different disc heights. In addition, because the grinding disc is step-shaped, but the clamping tool for grinding and polishing the sample is not provided with a positioning device, if the clamped sample cannot be accurately positioned to the position of the disc to be polished during operation, the position of the sample does not correspond to the granularity of the disc to be polished, so that the sample is step-shaped during grinding and polishing, and the product quality is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a metallographic grinding and polishing disk aiming at the use requirements of a metallographic specimen grinding and polishing machine, and grinding and polishing media with different granularities are arranged on a disk assembly consisting of an inner disk and an outer ring, so that the grinding and polishing procedures can be completed under the condition of not replacing the grinding and polishing disk or the grinding and polishing media, the automation of the whole processing process is realized, the working strength of operators is reduced, and the working efficiency is improved.

The utility model is realized by the following technical scheme: the utility model provides a metallography grinds and throws dish, includes objective table and disc subassembly, and the objective table is fixed to be located in the mill box of grinding and throwing machine base, and disc subassembly comprises by being located the inner disc at objective table center and from interior to exterior a plurality of outer annulars of locating the inner disc in proper order, and the equal detachable of inner disc and outer annulars sets up on the objective table, all is equipped with the medium of throwing of the mill of different granularities in the upper surface of inner disc and outer annulars.

The disc and the outer ring are fixed on the objective table in a magnetic attraction mode.

Gaps are arranged between the inner disc and the outer circular rings and between different outer circular rings, and the distance between the gaps is less than or equal to 1 mm.

The heights of the upper surfaces of the inner disc and the outer ring are consistent.

The granularity of the grinding and polishing medium is gradually reduced from the inner disc to the outer ring.

The upper surfaces of the inner disc and the outer ring are connected with the polishing medium in an adhesive manner.

The grinding and polishing medium is sand paper, polishing paper or polishing cloth.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

(1) the utility model adopts the inner circular disc and the outer circular ring which can be fixed on the objective table by magnetic attraction to form the disc assembly, each part of the disc assembly is an independent individual body, and can be used independently or cooperatively, and the disassembly is flexible. When the metallographic polishing machine is used, the abrasive paper or polishing cloth with different granularities is arranged on the inner disc and the outer ring, so that the grinding and polishing processes of a sample can be completed at one time, the grinding and polishing disc, the abrasive paper or the polishing cloth is prevented from being replaced by stopping, the operation steps of the existing single-disc and double-disc metallographic polishing machine are simplified, and the working efficiency is improved. Meanwhile, the magnetic attraction mode is fixed, so that the falling of sand paper or polishing cloth and the flying-out of a sample are avoided, and the working safety coefficient is increased.

(2) The upper surfaces of the inner disc and the outer ring are consistent in height, and the upper surfaces of the disc assemblies formed by the inner disc and the outer ring are in the same plane, so that the step-shaped arrangement is avoided, and the danger of edge contact collision or even ejection can be avoided when a sample is polished. During operation, the height of the clamp can be manually adjusted under the condition of no power supply interruption, so that the front and back heights of the sample are proper when the sample is polished on sand paper with different particle sizes.

(3) The granularity of the grinding and polishing medium adopted by the utility model is sequentially reduced from inside to outside, and when the grinding and polishing device is used, the diameter of the outer circular ring is larger, so that the grinding and polishing device is convenient for quick coarse grinding; the inner disc is small in diameter, real-time observation is facilitated, and mirror surface deflection is avoided. In addition, the mode of finely grinding the outer ring in the rough grinding mode and the inner disc can be adopted, the condition that the mirror surface is scratched by the falling particles in the initial grinding process in the subsequent fine grinding process can be avoided, and the sample processing quality is improved.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the disc assembly of the present invention.

The polishing machine comprises a carrying table 1, a polishing machine base 2, a polishing box 3, an inner disc 4, an outer ring 5 and a polishing medium 6.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Example 1:

the embodiment is a metallographic grinding and polishing disk.

The structure of fig. 1 is adopted, the polishing machine comprises an objective table 1, a disc assembly and a polishing medium 6, the objective table 1 is fixedly arranged in a polishing box 3 of a polishing machine base 2, the disc assembly comprises an inner disc 4 and a plurality of outer rings 5, the inner disc 4 is positioned at the center of the objective table 1, and the outer rings 5 are sequentially sleeved on the outer ring of the inner disc 4 from inside to outside and are of a concentric ring structure. Inner disc 4 and outer ring 5 are all fixed in objective table 1 through the mode of magnetism, for example can adopt magnetism to inhale the disc and inhale the ring structure of magnetism, do not need the buckle between each part, can be fixed in on objective table 1 safely through magnetism, can dismantle in a flexible way.

During operation, each part of the disc assembly can be used independently or in a matched mode, a small gap is formed between each part, and the distance between each part and the corresponding gap is not more than 1 mm. When the grinding and polishing device is used in a matched mode, the heights of all parts are kept consistent, and grinding and polishing media 6 with different particle sizes are adhered to the upper surfaces of all the parts, so that high-efficiency metallographic grinding and polishing can be achieved. The grinding and polishing medium 6 can be sand paper, polishing paper or polishing cloth, for convenient use, the granularity of the grinding and polishing medium 6 is gradually reduced from the inner disc 4 to the outer ring 5, and the mode of coarse grinding and fine grinding of the inner circle of the outer ring is adopted, so that the mirror surface can be prevented from being scratched by the falling particles during the subsequent fine grinding. In addition, when the metallographic phase is polished, the diameter of the outer circular ring 5 is large, rapid coarse grinding is facilitated, the diameter of the inner circle is small, real-time observation is facilitated, and mirror surface deflection is avoided.

In a specific embodiment, as shown in fig. 2, an inner disc 4 and three outer rings 5 are combined to form a disc assembly, and fixed on the object stage 1 by magnetic attraction, abrasive paper for rough grinding is glued on the outer ring 5 of the outermost ring, the mesh number of the abrasive paper is 180-.

During specific operation, a metallographic specimen is fixed on a clamp of the metallographic polishing machine, the metallographic specimen is correspondingly placed on the outer circular ring 5 of the outermost ring, the metallographic polishing machine is started, the objective table 1 rotates to coarsely grind the metallographic specimen, after coarse grinding is finished, the height and the position of the clamp are adjusted under the condition of no power interruption, the metallographic specimen is placed on the adjacent outer circular ring 5 to be continuously polished, and the process is analogized until the metallographic specimen is adjusted to the inner circular disc 4 to be polished, and then all polishing procedures are completed. Of course, the metallographic grinding and polishing disk is also suitable for grinding and polishing the metallographic specimen by hand.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a metallography grinds and throws dish which characterized in that: including objective table (1) and disc subassembly, in objective table (1) is fixed to be located grinding box (3) of grinding and polishing machine base (2), disc subassembly by be located interior disc (4) at objective table (1) center and from interior to exterior cover in proper order locate interior disc (4) outer a plurality of outer rings (5) and constitute, interior disc (4) and outer ring (5) equal detachable set up on objective table (1), be equipped with the grinding of different granularities and throw medium (6) in the upper surface of interior disc (4) and outer ring (5).

2. The metallographic abrasive polishing disk according to claim 1, characterized in that: the disc and the outer ring (5) are fixed on the objective table (1) in a magnetic attraction mode.

3. The metallographic abrasive polishing disk according to claim 1, characterized in that: gaps are arranged between the inner disc (4) and the outer circular rings (5) and between different outer circular rings (5), and the distance between the gaps is less than or equal to 1 mm.

4. The metallographic abrasive polishing disk according to claim 1, characterized in that: the heights of the upper surfaces of the inner disc (4) and the outer ring (5) are consistent.

5. The metallographic abrasive polishing disk according to claim 1, characterized in that: the granularity of the grinding and polishing medium (6) is gradually reduced from the inner disc (4) to the outer ring (5).

6. The metallographic abrasive polishing disk according to claim 1, characterized in that: the upper surfaces of the inner disc (4) and the outer ring (5) are connected with the polishing medium (6) in an adhesive manner.

7. The metallographic abrasive polishing disk according to claim 1, characterized in that: the grinding and polishing medium (6) is sand paper, polishing paper or polishing cloth.