CN213561779U - Device for automatically grinding and polishing metallographic specimen - Google Patents
Device for automatically grinding and polishing metallographic specimen Download PDFInfo
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- CN213561779U CN213561779U CN202022367072.3U CN202022367072U CN213561779U CN 213561779 U CN213561779 U CN 213561779U CN 202022367072 U CN202022367072 U CN 202022367072U CN 213561779 U CN213561779 U CN 213561779U
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- metallographic specimen
- polishing
- metallographic
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- motor
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- 238000005498 polishing Methods 0.000 title claims description 38
- 238000003825 pressing Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 6
- 244000137852 Petrea volubilis Species 0.000 claims description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000005088 metallography Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000007517 polishing process Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of the experimental facilities, concretely relates to a device that is used for automatic mill of metallographic specimen to throw. The device comprises a base, a motor and a fixed platform which are arranged on the base, two parallel slide rails and abrasive paper which are arranged on the fixed platform, a metallographic specimen clamp arranged on the abrasive paper and a crank structure; the two parallel slide rails and the fixed platform are of an integrated structure; the crank structure comprises a disc connected with the motor, a first nail arranged on the metallographic specimen clamp, a second nail arranged on the disc and a long crank; the first nail and the second nail are hinged with the long crank; the metallographic specimen clamp is driven by the motor to slide linearly along the two parallel slide rails. The utility model has the characteristics of can release operating personnel both hands, can keep the pressure of relatively invariable simultaneously to effectively reduce mar and pockmark on the sample gold phase face, and then effectively improve sample metallographic quality.
Description
Technical Field
The utility model belongs to the technical field of the experimental facilities, concretely relates to a device that is used for automatic mill of metallographic specimen to throw.
Background
The preparation of the metallographic specimen is an essential component in metallographic research and comprises the steps of cutting, inlaying, coarse grinding, fine grinding, polishing and the like of the specimen. Wherein, the rough grinding, the fine grinding and the polishing are important parts in the preparation of metallographic specimen, and in order to observe the real metallographic structure and obtain the metallographic structure without grinding marks and pits, the metallographic specimen needs to be ground and polished for a long time.
At present, when a manual sample metallographic phase clamping device is used for grinding and polishing a sample on a grinding and polishing machine, a series of problems that the metallographic phase quality of the sample is affected by uneven applied pressure, uneven grinding and polishing plane, a fillet structure at the edge of the sample and the like exist generally, and the problems can be effectively improved by using a metallographic sample clamp. In the grinding and polishing process, the method for grinding and polishing the test sample perpendicular to the scratch is particularly important, and compared with the test sample which is manually ground and polished and the test sample which is processed by a rotary disc type grinding and polishing machine, the manually prepared test sample is higher in metallographic quality. Therefore, it is very important to design a device for linear polishing of a metallographic specimen, which can simulate a worker to perform linear polishing.
Some metallographic fixtures are usually modified on the basis of a turntable type grinding and polishing machine, for example, in patent cn201610153458.x, "a detachable combined type metallographic specimen high-efficiency grinding and polishing fixture", it is particularly important to design a special device for linearly grinding and polishing a metallographic specimen, which can simulate workers to linearly grind and polish.
For example, the disassembly combined type metallographic specimen high-efficiency grinding and polishing clamp disclosed in the Chinese patent application No. CN201610153458.X is a cross-shaped overall structure clamp formed by respectively inserting one end of four connecting rods into peripheral holes of a middle connecting block of a square structure and connecting the other end of the four connecting rods with a magnetic sucker; the connecting rod is provided with a hole for placing the metallographic specimen clamping component, and the clamped metallographic specimen clamping component is placed in the hole and fixed by a screw in the metallographic specimen clamping component when the specimen is polished. Although the metallographic specimen is directly clamped without hands in the metallographic specimen preparation process during use, the problems that the specimen preparation quality is not stable enough and the like in the conventional handheld specimen preparation process are solved, the defects that the specimen is not guaranteed to be linearly polished, the polishing direction is not easy to control, the polishing method perpendicular to scratches is difficult to accurately use, deeper polishing scratches are easy to generate, the over-polishing phenomenon is easy to occur, and the metallographic quality of the specimen is not easy to improve are overcome.
SUMMERY OF THE UTILITY MODEL
The utility model relates to an overcome prior art, adopt manual centre gripping sample metallography when the machine is thrown to the mill of throwing, the pressure inequality appears exerting easily, the plane is uneven to the mill of throwing, the phenomenon that fillet structure appears in the sample edge carries out sharp mill with unable sample of keeping and throws, and then influence the problem of sample metallography quality, the utility model provides a can release operating personnel both hands, can keep the pressure of relatively invariable simultaneously, and effectively reduce mar and pocking mark on the sample metallography face, and then effectively improve the device that is used for the automatic mill of metallography sample and throws of sample metallography quality.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
the device for automatically grinding and polishing the metallographic specimen comprises a base, a motor and a fixed table which are arranged on the base, two parallel slide rails and abrasive paper which are arranged on the fixed table, a metallographic specimen clamp arranged on the abrasive paper and a crank structure for connecting the motor and the metallographic specimen clamp; the two parallel slide rails and the fixed platform are of an integrated structure; the crank structure comprises a disc connected with the motor, a first nail arranged on the metallographic specimen clamp, a second nail arranged on the disc and a long crank used for connecting the first nail and the second nail; the motor and the fixed platform are both fixedly connected to the base; the sand paper is fixedly laid on the fixed table and tightly attached to the metallographic specimen clamp; the first nail and the second nail are hinged with the long crank; the metallographic specimen clamp is driven by the motor to slide linearly along the two parallel slide rails.
Preferably, the upper portions of the two parallel sliding rails are provided with sliding block pressing rods, the edges of the two ends of each sliding block pressing rod are provided with first threaded holes, and the sliding block pressing rods are connected with the fixed table through the first threaded holes through bolts.
Preferably, two second threaded holes are formed in each of the two parallel sliding rails, and the second threaded holes correspond to the first threaded holes in the sliding block pressing rod in a one-to-one mode in the vertical direction; and the slide block pressing rod is connected with a parallel slide rail bolt on the fixed table.
Preferably, the middle part of the metallographic specimen clamp is in a hollow ring shape, 4 third threaded holes which are symmetrically distributed are formed in the middle part of the metallographic specimen clamp, and an inner hexagon bolt used for clamping the metallographic specimen is arranged in each third threaded hole.
Preferably, the bottom of each hexagon socket head cap screw is welded with an arc-shaped clamping block.
Preferably, the hexagon socket head cap screw includes nut and screw, be equipped with parallel helicitic texture on the nut.
Preferably, the bottoms of the two sides of the metallographic specimen clamp are respectively provided with a sliding block mechanism matched with the parallel sliding rails.
Preferably, the base is further provided with 4 fourth threaded holes which are symmetrically distributed, and the motor is connected with the base through the fourth threaded holes in a bolt mode.
Compared with the prior art, the utility model, beneficial effect is: (1) the utility model can not only release the hands of the operator, but also give relatively stable pressure and horizontal angle to the metallographic specimen during the grinding and polishing process of the specimen, and can be used for grinding and polishing metallographic specimens with different shapes; (2) in the process of polishing, the utility model discloses can also keep the sample to carry out the linear direction and polish, add again and hold the sample after, can also change the sample and polish the direction and carry out the mill of perpendicular to mar and throw, reach the purpose that effectively reduces mar and pockmark on the sample metallographic surface, avoid the production that the mar was thrown to darker mill, avoid the cross mill to throw the phenomenon to improve the metallographic quality of sample effectively.
Drawings
Fig. 1 is a schematic structural view of the device for automatically grinding and polishing a metallographic specimen according to the present invention;
fig. 2 is a schematic structural diagram of the middle metallographic specimen fixture of the present invention.
In the figure: the device comprises a base 1, parallel slide rails 2, a hexagon bolt 3, a slider compression bar 4, a first nail 5, a long crank 6, a second nail 7, a disc 8, a motor 9, a metallographic specimen clamp 10, a fixed table 11, abrasive paper 12, an inner hexagon bolt 101, a clamping block 102 and a slider mechanism 103.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
Example 1:
as shown in fig. 1, the device for automatically polishing a metallographic specimen of the present invention comprises a base 1, a motor 9 and a fixed table 11 fixedly mounted on the base, two parallel slide rails 2 and abrasive paper 12 arranged on the fixed table, a metallographic specimen holder 10 placed on the abrasive paper, and a crank structure for connecting the motor and the metallographic specimen holder; the two parallel slide rails and the fixed platform are of an integrated structure; the sand paper is fixedly tiled on the fixed table and tightly attached to the metallographic specimen clamp. The sand paper is positioned between the two parallel slide rails.
The crank structure comprises a disc 8 connected with a motor, a first nail 5 fixed on a metallographic specimen clamp, a second nail 7 fixed on the disc and a long crank 6 used for connecting the first nail and the second nail; the first nail and the second nail are hinged with the long crank; when the motor works, the disc is driven to rotate, and the metallographic specimen clamp is pulled to linearly slide along the two parallel slide rails under the action of the long crank.
Further, the top of two parallel slide rails all is equipped with slider depression bar 4, the both ends edge of slider depression bar all is equipped with first screw hole, the slider depression bar passes through first screw hole and fixed station bolted connection. The cross section of the sliding block pressing rod is L-shaped, two ends of the metallographic specimen fixture are located between the sliding block pressing rod and the parallel sliding rails, and the sliding block pressing rod is used for limiting the metallographic specimen fixture to move in the vertical direction when the metallographic specimen fixture slides linearly along the two parallel sliding rails, so that the grinding and polishing quality of the metallographic specimen is ensured.
As shown in fig. 1, two second threaded holes are formed in each of the two parallel slide rails, the two second threaded holes are respectively located at the starting end and the tail end of the parallel slide rail, and the second threaded holes are in one-to-one correspondence with the positions of the first threaded holes on the slider press rod in the vertical direction; a slider depression bar is connected through two hex bolts 3 with a parallel slide rail on the fixed station.
Further, as shown in fig. 2, the middle part of the metallographic specimen fixture is in a hollow ring shape, 4 third threaded holes which are symmetrically distributed are formed in the middle part of the metallographic specimen fixture, and an inner hexagon bolt 101 for clamping the metallographic specimen is arranged in each third threaded hole. Set up 4 hexagon socket head cap screw can be better carry out spacingly to metallographic specimen. The arc-shaped clamping blocks 102 are welded at the bottoms of the inner hexagon bolts, alloy phase samples can be better attached to the arc-shaped clamping blocks, and the metallographic samples are prevented from falling off from the clamp in the grinding and polishing process.
In addition, the hexagon socket head cap screw includes nut and screw, be equipped with parallel helicitic texture on the nut. The thread structure on the nut can increase the friction force between the hand of an operator and the nut, and the operator can conveniently twist the inner hexagon bolt by hand.
Further, the bottom of the two sides of the metallographic specimen clamp is provided with a sliding block mechanism 103 matched with the parallel sliding rails. As shown in fig. 2, the slider mechanism is a downward protruding block which can be inserted into the parallel slide rails, and the protruding block and the metallographic specimen holder are of an integral structure.
Furthermore, still be equipped with 4 symmetric distribution's fourth screw hole on the base, the motor passes through fourth screw hole and base bolted connection.
In addition, the contact surface of the slide block compression bar and the metallographic specimen clamp is coated with a lubricant. The lubricating agent is coated on the contact surface of the sliding compression bar and the metallographic specimen clamp, so that the friction force between the metallographic specimen clamp and the sliding block compression bar is reduced when the metallographic specimen clamp slides linearly along the two parallel sliding rails, the metallographic specimen is conveniently ground and polished, the loss of parts is reduced, and the service life is prolonged.
The utility model discloses a working method and principle are:
firstly, adhering and fixing abrasive paper on a fixed table, horizontally clamping a metallographic sample on a metallographic sample clamp, placing the metallographic sample clamp on a slide rail of the fixed table, inserting a slide block mechanism into the parallel slide rail, clamping an upper slide block press rod, screwing a hexagon bolt on the slide block press rod, enabling a proper pressure to exist between the metallographic sample clamp and the abrasive paper, connecting a crank structure, installing the structure shown in the figure 1, starting a motor, enabling the clamped metallographic sample to be linearly ground and polished on the abrasive paper in a reciprocating manner under the action of the motor, the crank structure and the metallographic sample clamp, then closing the motor, loosening an inner hexagon bolt, adjusting the clamping direction of the metallographic sample, repeating the steps, and enabling the metallographic sample to be continuously subjected to vertical metallographic scratch grinding and polishing.
The utility model provides a device for automatically grinding and polishing a metallographic specimen, which can release both hands of an operator and give relatively stable pressure and horizontal angle to the metallographic specimen during the process of grinding and polishing the specimen, and can be used for grinding and polishing the metallographic specimens with different shapes; in the process of polishing, the utility model discloses can also keep the sample to carry out the linear direction and polish, add again and hold the sample after, can also change the sample and polish the direction and carry out the mill of perpendicular to mar and throw, reach the purpose that effectively reduces mar and pockmark on the sample metallographic surface, avoid the production that the mar was thrown to darker mill, avoid the cross mill to throw the phenomenon to improve the metallographic quality of sample effectively.
The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.
Claims (8)
1. The device for automatically grinding and polishing the metallographic specimen is characterized by comprising a base, a motor and a fixed table which are arranged on the base, two parallel slide rails and abrasive paper which are arranged on the fixed table, a metallographic specimen clamp arranged on the abrasive paper and a crank structure for connecting the motor and the metallographic specimen clamp; the two parallel slide rails and the fixed platform are of an integrated structure; the crank structure comprises a disc connected with the motor, a first nail arranged on the metallographic specimen clamp, a second nail arranged on the disc and a long crank used for connecting the first nail and the second nail; the motor and the fixed platform are both fixedly connected to the base; the sand paper is fixedly laid on the fixed table and tightly attached to the metallographic specimen clamp; the first nail and the second nail are hinged with the long crank; the metallographic specimen clamp is driven by the motor to slide linearly along the two parallel slide rails.
2. The device for automatically grinding and polishing the metallographic specimen according to claim 1, wherein a sliding block pressing rod is arranged above each of the two parallel sliding rails, first threaded holes are formed in edges of two ends of the sliding block pressing rod, and the sliding block pressing rod is connected with a fixing table through the first threaded holes in a bolt mode.
3. The device for automatically grinding and polishing the metallographic specimen according to claim 2, wherein two second threaded holes are formed in each of the two parallel sliding rails, and the second threaded holes correspond to the first threaded holes in the sliding block pressing rod in a one-to-one manner in the vertical direction; and the slide block pressing rod is connected with a parallel slide rail bolt on the fixed table.
4. The device for automatically grinding and polishing the metallographic specimen according to claim 1, wherein the middle part of the metallographic specimen clamp is in a hollow ring shape, 4 third threaded holes are symmetrically formed in the middle part of the metallographic specimen clamp, and an inner hexagonal bolt for clamping the metallographic specimen is arranged in each third threaded hole.
5. The device for automatically grinding and polishing the metallographic specimen according to claim 4, wherein an arc-shaped clamping block is welded to the bottom of each hexagon socket bolt.
6. The device for automatically grinding and polishing the metallographic specimen according to claim 4, wherein the hexagon socket head cap screw comprises a nut and a screw, and the nut is provided with a parallel thread structure.
7. The device for automatically grinding and polishing the metallographic specimen according to any one of claims 1 to 6, wherein slide block mechanisms matched with parallel slide rails are arranged at the bottoms of two sides of the metallographic specimen clamp.
8. The device for automatically grinding and polishing the metallographic specimen according to any one of claims 1 to 6, wherein 4 fourth threaded holes are symmetrically formed in the base, and the motor is connected with the base through the fourth threaded holes in a bolt mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022367072.3U CN213561779U (en) | 2020-10-22 | 2020-10-22 | Device for automatically grinding and polishing metallographic specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022367072.3U CN213561779U (en) | 2020-10-22 | 2020-10-22 | Device for automatically grinding and polishing metallographic specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213561779U true CN213561779U (en) | 2021-06-29 |
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ID=76526974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022367072.3U Expired - Fee Related CN213561779U (en) | 2020-10-22 | 2020-10-22 | Device for automatically grinding and polishing metallographic specimen |
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| Country | Link |
|---|---|
| CN (1) | CN213561779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115122233A (en) * | 2022-07-05 | 2022-09-30 | 一汽解放汽车有限公司 | Grinding clamp for metallographic specimen |
-
2020
- 2020-10-22 CN CN202022367072.3U patent/CN213561779U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115122233A (en) * | 2022-07-05 | 2022-09-30 | 一汽解放汽车有限公司 | Grinding clamp for metallographic specimen |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 |