CN113916625B - Automatic grinding device and metallographic slicing equipment - Google Patents
Automatic grinding device and metallographic slicing equipment Download PDFInfo
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- CN113916625B CN113916625B CN202111141398.7A CN202111141398A CN113916625B CN 113916625 B CN113916625 B CN 113916625B CN 202111141398 A CN202111141398 A CN 202111141398A CN 113916625 B CN113916625 B CN 113916625B
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- 238000000227 grinding Methods 0.000 title claims abstract description 102
- 230000007246 mechanism Effects 0.000 claims abstract description 200
- 230000033001 locomotion Effects 0.000 claims abstract description 58
- 230000004888 barrier function Effects 0.000 claims abstract description 34
- 238000005498 polishing Methods 0.000 claims description 44
- 244000137852 Petrea volubilis Species 0.000 claims description 25
- 230000003321 amplification Effects 0.000 claims description 18
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 18
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000003993 interaction Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005464 sample preparation method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2873—Cutting or cleaving
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Abstract
The application discloses an automatic grinding device and metallographic slicing equipment, which comprises a workbench, a grinding platform, a fixed support, a sample fixing mechanism, a feeding system control mechanism, a stroke amplifying mechanism and a feeding amount detector, wherein the workbench is provided with a feeding mechanism, a feeding mechanism and a feeding amount detector, wherein the feeding mechanism is provided with a feeding mechanism, a feeding mechanism and a feeding mechanism, and the feeding mechanism is provided with a feeding mechanism: the grinding platform and the fixed bracket are fixed on the workbench; the feeding system control mechanism is fixed on the fixed bracket; the sample fixing mechanism is used for fixing a sample, one end of the stroke amplifying mechanism is connected with the sample fixing mechanism, and when the sample fixing mechanism moves, the stroke amplifying mechanism is driven by the sample fixing mechanism to perform fan-shaped movement, and the amplitude of the stroke amplifying mechanism is larger than the feeding amount of the movement of the sample fixing mechanism; and the feeding amount detector is respectively arranged corresponding to the feeding system control mechanism and the stroke amplifying mechanism, calculates the feeding amount of the movement of the sample fixing mechanism by detecting the movement amplitude of the stroke amplifying barrier strip, and feeds back the feeding amount to the feeding system control mechanism. The application realizes automatic grinding.
Description
Technical Field
The application relates to the field of component measurement and analysis, in particular to an automatic grinding device and metallographic slicing equipment.
Background
The method for preparing the metallographic section, also called section, cross-section and x-section, is a sample preparation method which comprises the steps of wrapping and fixedly sealing a sample by special liquid resin, then grinding and polishing, and the detection flow comprises the steps of sampling, fixedly sealing, grinding and polishing, and finally providing data such as morphology photos, crack layering size judgment or size and the like. Is the most commonly used sample preparation means for observing the condition of the section tissue structure of a sample.
The grinding step is an important step, and at present, the grinding step is mostly carried out by adopting a sample after being cured by hand, but in the grinding process, the rotating speed of a motor is higher, and the situation of hurting hands easily occurs.
Disclosure of Invention
The application aims to provide an automatic grinding device for realizing automatic operation and reducing personnel abrasion.
The application discloses an automatic grinding device, which is characterized by comprising: a work table; the grinding platform is arranged on the workbench; the fixed bracket is fixed on the workbench and is arranged corresponding to the grinding platform; the feeding system control mechanism is fixed on the fixed bracket; the sample fixing mechanism is fixed on the feeding system control mechanism and is used for fixing a sample and moves under the control of the feeding system control mechanism; one end of the stroke amplifying mechanism is connected with the sample fixing mechanism, when the sample fixing mechanism moves, the stroke amplifying mechanism is driven by the sample fixing mechanism to do fan-shaped movement, and the movement amplitude of the stroke amplifying mechanism is larger than the feeding amount of the movement of the sample fixing mechanism; the sample fixing mechanism comprises a feeding shaft, one end of the feeding shaft is used for fixing a sample, and the other end of the feeding shaft is connected with the feeding system control mechanism; the stroke amplifying mechanism comprises an axial rotation radial mechanism and a stroke amplifying baffle strip, the stroke amplifying baffle strip is provided with a rotating shaft, the stroke amplifying baffle strip is close to one end of the feeding shaft and is connected with the feeding shaft through the axial rotation radial mechanism, the distance from the end of the stroke amplifying baffle strip, which is close to one end of the feeding shaft, to the rotating shaft is smaller than the distance from the end, which is far from one end of the feeding shaft, to the rotating shaft, and when the feeding shaft moves, the stroke amplifying baffle strip is driven to do circular movement through the axial rotation radial mechanism; the feeding amount detector is respectively arranged corresponding to the feeding system control mechanism and the stroke amplifying mechanism, calculates the feeding amount of the movement of the sample fixing mechanism by detecting the movement amplitude of the stroke amplifying barrier strip and feeds back the feeding amount to the feeding system control mechanism; the automatic grinding device is characterized in that a plurality of limiting columns arranged along the axial direction are arranged on the feeding shaft, the axial rotation radial mechanism comprises limiting holes, the limiting holes are detachably fixed on the limiting columns, the automatic grinding device further comprises a reset mechanical arm, the reset mechanical arm corresponds to the axial rotation radial mechanism, and the reset mechanical arm is used for switching the axial rotation radial mechanism between different limiting columns.
Optionally, the feeding amount detector includes a first sensor and a second sensor, where the first sensor and the second sensor are disposed on a movement path of the fan-shaped movement of the stroke amplification barrier, and the first sensor and the second sensor are respectively connected with the feeding system control mechanism, and when the first sensor detects the stroke amplification barrier, the first sensor sends a deceleration movement signal to the feeding system control mechanism to control the sample fixing mechanism to perform deceleration movement; and when the second sensor detects the travel amplifying barrier, sending a stop motion signal to the feeding system control mechanism so as to control the sample fixing mechanism to stop moving.
Optionally, the automatic grinding device further comprises a sensor adjusting mechanism, wherein the sensor adjusting mechanism is used for adjusting the relative positions of the first sensor and the second sensor and the stroke amplification barrier strip.
Optionally, the automatic grinding device further comprises a spiral fine adjustment module, the spiral fine adjustment module is respectively connected with the feeding system control mechanism and the sample fixing mechanism, the spiral fine adjustment module is made according to a spiral amplification principle, and the feeding system control mechanism carries out micro feeding control on the sample fixing mechanism by controlling the rotation number or the rotation angle of the spiral fine adjustment module.
Optionally, the feeding system control mechanism comprises a man-machine interaction unit, an operation unit, a feedback detection unit, a driving output unit and a motor transmission unit; the driving output unit is in transmission connection with the motor transmission unit, the motor transmission unit is connected with the sample fixing mechanism, the feedback detection unit is respectively coupled with the first sensor and the second sensor, the operation unit is respectively coupled with the driving output unit and the feedback detection unit, and the man-machine interaction unit is coupled with the operation unit.
Optionally, be provided with grinding portion, abrasive paper fixed module and abrasive paper rotating electrical machines on the grinding platform, the abrasive paper fixed module sets up grinding portion department for detachably fixed abrasive paper, the abrasive paper rotating electrical machines with grinding portion connects, is used for control grinding portion's rotation and rotational speed are adjusted.
Optionally, at least two grinding parts are provided, and different grinding parts default fixed abrasive paper mesh numbers are different.
The application also discloses a metallographic slicing device which comprises the automatic grinding device, a sampling device, a sealing device, a polishing device and a measurement analysis device, wherein the outlet of the sampling device is connected with the sealing device, the outlet of the sealing device is connected with the automatic grinding device, the outlet of the automatic grinding device is connected with the polishing device, and the outlet of the polishing device is connected with the measurement analysis device.
Compared with a scheme of grinding the sample by a handheld grinding device, the automatic grinding of the sample can be realized by arranging the workbench, the grinding platform, the fixed support, the sample fixing mechanism and the feeding system control mechanism, so that the condition that the human body is injured by manual grinding is greatly reduced; the application also discloses a stroke amplifying mechanism, which comprises a stroke amplifying baffle strip connected with the sample fixing mechanism, when the sample fixing mechanism moves, the stroke amplifying baffle strip with one end connected with the sample fixing mechanism is driven to do fan-shaped movement, and the stroke amplifying baffle strip moves in association with the sample fixing mechanism, and the movement amplitude of the stroke amplifying baffle strip is larger than that of the sample fixing mechanism, so that the feeding amount of the sample fixing mechanism can be judged by detecting the movement amplitude of the amplifying baffle strip, thereby being beneficial to realizing the accurate adjustment of the feeding amount of the sample fixing mechanism.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is evident that the figures in the following description are only some embodiments of the application, from which other figures can be obtained without inventive effort for a person skilled in the art. In the drawings:
FIG. 1 is a schematic view of an automatic grinding apparatus according to a first embodiment of the present application;
FIG. 2 is a schematic view of a part of an automatic polishing apparatus according to a second embodiment of the present application;
FIG. 3 is a partial schematic view of an automatic grinding apparatus according to a third embodiment of the present application;
FIG. 4 is a schematic view of an automatic grinding apparatus according to a fourth embodiment of the present application;
FIG. 5 is a schematic view of an embodiment of a polishing platen;
FIG. 6 is a schematic diagram of a feed system control mechanism of an embodiment of the present application;
FIG. 7 is a schematic diagram of a feed system control mechanism of an embodiment of the present application;
FIG. 8 is a schematic diagram of a metallographic sectioning apparatus according to an embodiment of the application.
1, A sampling device; 2. a sealing device; 3. an automatic grinding device; 4. a polishing device; 5. a measurement analysis device; 10. a work table; 20. a grinding platform; 30. a fixed bracket; 40. a feed system control mechanism; 50. a sample fixing mechanism; 51. a feed shaft; 511. a limit column; 60. a feed amount detector; 61. a first sensor; 62. a second sensor; 63. a sensor adjustment mechanism; 70. a stroke amplifying mechanism; 71. an axial-rotation radial mechanism; 711. a limit column; 72. a stroke amplifying barrier strip; 73. a rotation shaft; 80. a sample; 90. resetting the mechanical arm; 100. a metallographic section device.
Detailed Description
It is to be understood that the terminology used herein, the specific structural and functional details disclosed are merely representative for the purpose of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "first", "second" may include one or more such features either explicitly or implicitly; the meaning of "plurality" is two or more. The terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or groups thereof may be present or added.
In addition, terms of the azimuth or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are described based on the azimuth or relative positional relationship shown in the drawings, are merely for convenience of description of the present application, and do not indicate that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.
Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
The application is described in detail below with reference to the attached drawings and alternative embodiments.
Fig. 1 is a schematic view of an automatic polishing apparatus according to a first embodiment of the present application, fig. 2 is an electrical connection schematic view of the automatic polishing apparatus according to the first embodiment of the present application, and referring to fig. 1 and 2, the present application discloses an automatic polishing apparatus, which comprises a workbench 10, a polishing platform 20, a fixing bracket 30, a feeding system control mechanism 40, a sample fixing mechanism 50, a stroke amplifying mechanism 70 and a feeding amount detector 60:
The grinding platform 20 is arranged on the workbench 10; the fixing bracket 30 is fixed on the workbench 10 and is arranged corresponding to the grinding platform 20;
The feeding system control mechanism 40 is fixed on the fixed bracket 30; the sample fixing mechanism 50 is fixed on the feeding system control mechanism 40, the sample fixing mechanism 50 is used for fixing a sample 80, and the sample fixing mechanism 50 moves under the control of the feeding system control mechanism 40; one end of the stroke amplifying mechanism 70 is connected with the sample fixing mechanism 50, when the sample fixing mechanism 50 moves, the stroke amplifying mechanism 70 is driven by the sample fixing mechanism 50 to perform fan-shaped movement, the movement amplitude of the stroke amplifying mechanism 70 is larger than the feeding amount of the movement of the sample fixing mechanism 50, and the movement amplitude of the stroke amplifying mechanism 70 is in direct proportion to the feeding amount of the movement of the sample fixing mechanism 50; the feed amount detector 60 is provided corresponding to the feed system control means 40 and the stroke amplifying means 70, and calculates the feed amount of the movement of the sample fixing means by detecting the movement width of the stroke amplifying means 70, and feeds back the calculated feed amount to the feed system control means 40.
The feeding system control mechanism 40 is electrically connected to the sample fixing mechanism 50 and the feeding detector 60, respectively, the feeding system control mechanism 40 is used for controlling feeding or retreating of the sample fixing mechanism 50, speed and the like, and the feeding detector 60 is used for calculating the feeding amount of the movement of the sample fixing mechanism by detecting the movement amplitude of the stroke amplifying mechanism 70 of the feeding detector 60 and feeding back to the feeding system control mechanism 40, so as to control the movement of the sample fixing mechanism 50, wherein the feeding detector 60 can be a camera, a sensor, a microscope and the like, and is selected according to requirements.
Compared with a scheme of grinding the sample by a handheld grinding device, the automatic grinding of the sample can be realized by arranging the workbench, the grinding platform, the fixed support, the sample fixing mechanism and the feeding system control mechanism, so that the condition that the human body is injured by manual grinding is greatly reduced; the application also discloses a stroke amplifying mechanism, which comprises a stroke amplifying baffle strip connected with the sample fixing mechanism, when the sample fixing mechanism moves, the stroke amplifying baffle strip with one end connected with the sample fixing mechanism is driven to do fan-shaped movement, and the stroke amplifying baffle strip moves in association with the sample fixing mechanism, and the movement amplitude of the stroke amplifying baffle strip is larger than that of the sample fixing mechanism, so that the feeding amount of the sample fixing mechanism can be judged by detecting the movement amplitude of the amplifying baffle strip, thereby being beneficial to realizing the accurate adjustment of the feeding amount of the sample fixing mechanism.
Fig. 3 is a schematic partial view of an automatic grinding apparatus according to a second embodiment of the present application, and as can be seen from fig. 3, the present application may be further modified on the basis of the first embodiment, specifically, the sample fixing mechanism 50 includes a feed shaft 51, one end of the feed shaft 51 is used for fixing a sample 80, the other end is connected to the feed system control mechanism 40, the feed shaft 51 moves in a direction approaching the grinding platform 20 and away from the grinding platform 20 under the control of the feed system control mechanism 40, the stroke amplifying mechanism 70 includes an axial rotation radial mechanism 71 and a stroke amplifying barrier 72, the stroke amplifying barrier 72 has a rotation axis 73, one end of the stroke amplifying barrier 72 near the feed shaft 51 is connected to the feed shaft 51 through the axial rotation radial mechanism 71, and a distance from the end of the stroke amplifying barrier 72 near the one end of the feed shaft 51 to the rotation axis 73 is smaller than a distance from the end of the feed shaft 51 to the rotation axis 51, and the stroke amplifying barrier 72 is driven to perform a circular motion through the axial rotation radial expansion barrier 71 when the feed shaft 51 moves.
The feeding shaft 51 may move only in a direction approaching and separating from the polishing platform, in this way, the feeding shaft 51 may be provided with a limiting post 511, the axial rotation radial mechanism 71 may be only a limiting hole 711 detachably fixed with the limiting post 511, one end of the stroke amplification blocking strip 72 is rotatably connected to the limiting post 511 through the limiting hole 711, and a distance from an end of the stroke amplification blocking strip 72 near one end of the limiting post 511 to the rotating shaft 73 is smaller than a distance from an end of the stroke amplification blocking strip far from one end of the limiting post 511 to the rotating shaft 73, in this way, a fan-shaped movement can be controlled by a lever principle, and a movement amplitude of the stroke amplification blocking strip far from one end of the limiting post is greater than a movement amplitude of the feeding shaft, thereby being easier to measure.
Fig. 4 is a partial schematic view of an automatic grinding apparatus according to a third embodiment of the present application, referring to fig. 4, which is an improvement of the second embodiment, in order to better function as a stroke amplifying mechanism, the feed amount detector 60 includes a first sensor 61 and a second sensor 62, the first sensor 61 and the second sensor 62 are disposed on a movement path of the stroke amplifying bar 70 in a fan shape, the first sensor 61 and the second sensor 62 are connected to the feed system control mechanism 40, respectively, and when the first sensor 61 detects the stroke amplifying bar 72, a deceleration movement signal is sent to the feed system control mechanism 40 to control the deceleration movement of the sample fixing mechanism 50; when the second sensor 62 detects the stroke amplifying bar 72, a stop motion signal is sent to the feed system control mechanism 40 to control the sample fixing mechanism 50 to stop motion.
The setting positions of the first sensor and the second sensor can be set corresponding to a path swept by the end part of the travel amplifying barrier strip far away from the feeding system control mechanism, or can be set corresponding to a path swept by the middle part of the feeding system control mechanism, and the setting positions are only required to be positioned in a region traversed by the travel amplifying barrier strip; taking the feeding amount of the feeding system control mechanism and the movement amount of the end part of the travel amplifying barrier strip away from the feeding system control mechanism as an example in a ratio of 1:10, if the current sample fixing mechanism needs to feed 1mm, the first sensor can be arranged at the initial position of the travel amplifying barrier strip, and the second sensor is arranged at the position of the travel amplifying barrier strip moving 10mm, so that the movement of the travel amplifying barrier strip is detected when the travel amplifying barrier strip moves 10mm, and the detection is easier and more accurate than the movement of the side sample fixing mechanism when the travel amplifying barrier strip moves 1mm, and the movement of the feeding system control mechanism can be controlled to stop when the travel amplifying barrier strip moves 1mm more accurately.
In this embodiment, when the distance is appropriate, the feeding system control mechanism may control the feeding of the sample fixing mechanism to the proper position by one feeding, and if the amount of one feeding does not reach the requirement, the same distance may be considered to be controlled to feed the sample fixing mechanism each time, and then the clamping position of the sample is adjusted after each feeding is completed, and the sample is fed again.
Of course, in order to better adapt to the grinding requirements of different samples and grinding depths, the application is further improved as follows: the automatic grinding apparatus further includes a sensor adjustment mechanism 63, and the sensor adjustment mechanism 63 is used for adjusting the relative positions of the first sensor 61 and the second sensor 62 and the stroke amplifying bar 72. After the relative position is adjusted, the distance between the second sensor and the initial position of the stroke amplifying barrier strip, the distance between the first sensor and the second sensor, and the ratio of the feeding amount of the sample fixing mechanism to the movement amount of the stroke amplifying barrier strip can be adjusted by adjusting the positions of the first sensor and the second sensor.
The first sensor 61 and the second sensor 62 may be fixed to the fixed bracket 30, or may be mounted by additionally providing other fixing mechanisms, as may the sensor adjusting mechanism.
For example, the sensor adjusting mechanism 63 may be a guide rail, the first sensor 61 and the second sensor 62 may move on the guide rail, when the first sensor and the second sensor are unchanged, the ratio of the feeding amount of the sample fixing mechanism to the movement amount of the stroke amplifying barrier is reduced by half when the first sensor and the second sensor are adjusted to correspond to the stroke amplifying barrier being disposed away from the end or the middle of the sample fixing mechanism; of course, the first sensor and the second sensor are both disposed at the end of the travel amplifying barrier away from the sample fixing mechanism, and the distance between the first sensor and the second sensor is increased or decreased (or represented by changing the angle between the first sensor and the second sensor and the rotation axis), or the feeding amount of the sample fixing mechanism may be adjusted.
On this basis, the automatic grinding device may further include a reset mechanism for, after the stroke amplification barrier passes through the first sensor from the initial position and reaches the second sensor, maintaining the position of the sample fixing mechanism unchanged after the completion of one feeding, and resetting the stroke amplification barrier to the initial position for the next feeding until the sample fixing mechanism completes the total feeding amount of the current grinding. There are many options for this reset mechanism, one of which is readily implemented as follows:
Specifically, the feeding shaft 51 is provided with a plurality of limiting posts 511 disposed along an axial direction, the limiting holes 711 are detachably fixed on the limiting posts 511, the automatic grinding device further includes a reset mechanical arm 90, the reset mechanical arm 90 is disposed corresponding to the limiting holes 711, when the stroke amplification barrier 71 passes through the first sensor 61 from an initial position and reaches the second sensor 62, the reset mechanical arm is used for switching the axial rotation radial mechanism between different limiting posts, for example, the reset mechanical arm detaches the axial rotation radial mechanism from a previous limiting post and fixes the axial rotation radial mechanism to a subsequent limiting post, meanwhile, the stroke amplification barrier resets back to the initial position, and in a reset process, the position of the sample fixing mechanism is unchanged and repeated for a plurality of times until the movement of the sample fixing mechanism completes a preset feeding amount. In this way, when the stroke amplifying barrier strip cannot finish the feeding amount required by the current grinding, the feeding can be reset for multiple times to reach the required feeding amount. The spacing between the spacing posts can be set smaller to achieve adjustment with smaller accuracy.
Fig. 5 is a schematic view of an automatic polishing apparatus according to a fourth embodiment of the present application, referring to fig. 5, the main difference between the present embodiment and the second embodiment is that the feed shaft 51 of the present embodiment may control the feed shaft to move in a direction approaching or separating from the polishing platform by using a screw feeding manner, and specifically, the automatic polishing apparatus further includes a screw fine adjustment module 512, the screw fine adjustment module 512 is respectively connected to the feed system control mechanism 40 and the sample fixing mechanism 50, and the screw fine adjustment module 512 is made according to a screw amplification principle, and the feed system control mechanism performs micro-feeding control on the sample fixing mechanism by controlling the rotation number or rotation angle of the screw fine adjustment module 512. The spiral fine-tuning module and the structure of the feeding shaft can be specifically referred to the structure of a spiral micrometer, which belongs to common knowledge in the field and is not repeated herein, but the principle of spiral amplification is applied to the field of automatic grinding, so that the application is innovative, the error of feeding control is reduced, when the feeding distance of 1mm is needed, the feeding device can design 10 circles to be rotated for a distance of 1mm, and thus, the accuracy control of 0.1mm or even 0,1mm or less can be realized, and the accuracy is far higher than the grinding accuracy of a handheld grinding device.
Fig. 6 is a schematic view of an polishing platform according to an embodiment of the present application, and as can be seen from fig. 6, in addition to the first embodiment, in this embodiment, a polishing portion 22, a sand paper fixing module 23, and a sand paper rotating motor 21 are disposed on the polishing platform 20, where the sand paper fixing module 23 is disposed at the polishing portion 22 and is used for detachably fixing sand paper, and the sand paper rotating motor 21 is connected to the polishing portion 22 and is used for controlling rotation and rotation speed adjustment of the polishing portion 22. The sand paper fixing module is used for fixing sand paper, the sand paper can be selected to have different mesh numbers according to requirements, the sand paper with small mesh number is used for coarse grinding, and the sand paper with large mesh number is used for fine grinding; the sand paper rotating motor is used for controlling the rotation of the grinding part and the rotation speed adjustment, so that coarse grinding and fine grinding are realized at different stages of the same sample; of course, the device can also be used for carrying out targeted rotation speed adjustment when grinding different samples.
In addition, in order to improve the production efficiency, the polishing sections 22 are provided with at least two polishing sections 22, and the number of sand papers fixed by default is different for different polishing sections 22. Thus, when the sample is grinded, two or more kinds of sand paper can be fixed in advance according to different stages, and after one grinding part finishes one stage of grinding, the sample fixing mechanism can be controlled to directly move to the other grinding part to immediately grind the next stage without waiting for the time of replacing the sand paper; meanwhile, when the grinding in the next stage is carried out, the sand paper of the grinding part corresponding to the grinding in the previous stage can be replaced by the sand paper required in the next stage, so that extremely high production efficiency is achieved.
Fig. 7 is a schematic diagram of a feeding system control mechanism according to an embodiment of the present application, and as can be seen from fig. 7, the feeding system control mechanism 40 according to the present application includes a man-machine interaction unit 41, an operation unit 42, a feedback detection unit 43, a driving output unit 44, and a motor transmission unit 45, which are optional in this embodiment based on the first embodiment; the driving output unit 44 is in driving connection with the motor transmission unit 45, the motor transmission unit 44 is connected with the sample fixing mechanism 50, the feedback detection unit 43 is respectively coupled with the feeding amount detector 60, that is, the first sensor 61 and the second sensor 62, the operation unit is respectively coupled with the driving output unit and the feedback detection unit, and the man-machine interaction unit is coupled with the operation unit.
Fig. 8 is a schematic diagram of a metallographic slicing apparatus according to an embodiment of the present application, and referring to fig. 8, the present application also discloses a metallographic slicing apparatus 100, which comprises any of the automatic grinding devices 3 disclosed in the present application, a sampling device 1, a fixing device 2, a polishing device 4 and a measurement analysis device 5, wherein an outlet of the sampling device 1 is connected to the fixing device 2, an outlet of the fixing device 2 is connected to the automatic grinding device 3, an outlet of the automatic grinding device 3 is connected to the polishing device 4, and an outlet of the polishing device 4 is connected to the measurement analysis device 5.
Introducing a basic working flow of the metallographic slicing equipment through a flow, obtaining a sample through a sampling device and a fixing device, and confirming that the sample needs to be subjected to the analysis of the metallographic slice;
Mounting the sample to an automatic grinding device; firstly, coarse sand (240 meshes) is used for polishing to a position 1-2mm close to a required position (judged by a feed detector) on a horizontal rotary millstone, and the rotating speed is 400-500r/min; then, polishing and polishing the material with 600-800 meshes of sand paper at the rotating speed of 180-220r/min generated in the previous step, then polishing and polishing the material with 1200 meshes of sand paper at the rotating speed of 130r/min, then fine grinding with 2500 meshes of sand paper to a required checking position at the rotating speed of 80r/min, and simultaneously controlling the grinding force and improving the visual checking frequency of a microscope to 1/5 seconds; then, when detecting that the polishing is carried out until the profile of the required position is displayed, replacing 4000-mesh polishing sand, and polishing scratches generated in the last step, wherein the rotating speed is 60r/min;
The test sample is detached from the automatic grinding device and is mounted on the polishing device, flannelette and polishing liquid are replaced to polish the test sample until the test sample is polished to the required inspection effect, the rotating speed is 30-50r/min, 180-degree reversing is performed after 5 times of co-directional polishing, and the influence of drift on the inspection result is avoided; washing the polished sample, wiping dust-free paper, sucking the sample, and checking the sample with a microscope more than 200 times to confirm the polishing effect;
And finally sputtering the sample qualified in grinding and polishing through a measuring and analyzing device, and performing SEM measurement and analysis.
It should be noted that, the limitation of each step in the present solution is not to be considered as limiting the sequence of steps on the premise of not affecting the implementation of the specific solution, and the steps written in the previous step may be executed before, or executed after, or even executed simultaneously, so long as the implementation of the present solution is possible, all the steps should be considered as falling within the protection scope of the present application.
It should be noted that the inventive concept of the present application can form a very large number of embodiments, but the application documents are limited in size and cannot be listed one by one, so that the above-described embodiments or technical features can be arbitrarily combined to form new embodiments without conflict, and the original technical effects will be enhanced after the embodiments or technical features are combined
The above description of the application in connection with specific alternative embodiments is further detailed and it is not intended that the application be limited to the specific embodiments disclosed. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the application, and these should be considered to be within the scope of the application.
Claims (8)
1. An automatic grinding apparatus, comprising:
a work table;
the grinding platform is arranged on the workbench;
The fixed bracket is fixed on the workbench and is arranged corresponding to the grinding platform;
the feeding system control mechanism is fixed on the fixed bracket;
The sample fixing mechanism is fixed on the feeding system control mechanism and is used for fixing a sample and moves under the control of the feeding system control mechanism;
One end of the stroke amplifying mechanism is connected with the sample fixing mechanism, when the sample fixing mechanism moves, the stroke amplifying mechanism is driven by the sample fixing mechanism to do fan-shaped movement, and the movement amplitude of the stroke amplifying mechanism is larger than the feeding amount of the movement of the sample fixing mechanism; and
The sample fixing mechanism comprises a feeding shaft, one end of the feeding shaft is used for fixing a sample, and the other end of the feeding shaft is connected with the feeding system control mechanism;
the stroke amplifying mechanism comprises an axial rotation radial mechanism and a stroke amplifying baffle strip, the stroke amplifying baffle strip is provided with a rotating shaft, the stroke amplifying baffle strip is close to one end of the feeding shaft and is connected with the feeding shaft through the axial rotation radial mechanism, the distance from the end of the stroke amplifying baffle strip, which is close to one end of the feeding shaft, to the rotating shaft is smaller than the distance from the end, which is far from one end of the feeding shaft, to the rotating shaft, and when the feeding shaft moves, the stroke amplifying baffle strip is driven to do circular movement through the axial rotation radial mechanism;
The feeding amount detector is respectively arranged corresponding to the feeding system control mechanism and the stroke amplifying mechanism, calculates the feeding amount of the movement of the sample fixing mechanism by detecting the movement amplitude of the stroke amplifying barrier strip and feeds back the feeding amount to the feeding system control mechanism;
the automatic grinding device is characterized in that a plurality of limiting columns arranged along the axial direction are arranged on the feeding shaft, the axial rotation radial mechanism comprises limiting holes, the limiting holes are detachably fixed on the limiting columns, the automatic grinding device further comprises a reset mechanical arm, the reset mechanical arm corresponds to the axial rotation radial mechanism, and the reset mechanical arm is used for switching the axial rotation radial mechanism between different limiting columns.
2. The automatic grinding apparatus as set forth in claim 1 wherein said feed amount detector includes a first sensor and a second sensor, said first sensor and said second sensor being disposed in a path of movement of said trip amplification bar sector movement, said first sensor and said second sensor being respectively connected to said feed system control mechanism, said first sensor sending a deceleration movement signal to said feed system control mechanism to control said specimen holding mechanism to decelerate movement when said trip amplification bar is detected by said first sensor; and when the second sensor detects the travel amplifying barrier, sending a stop motion signal to the feeding system control mechanism so as to control the sample fixing mechanism to stop moving.
3. The automatic grinding apparatus of claim 2 further comprising a sensor adjustment mechanism for adjusting the relative position of said first sensor and said second sensor to said trip amplification bar.
4. The automatic grinding apparatus according to claim 1, further comprising a screw fine adjustment module connected to the feeding system control mechanism and the sample fixing mechanism, respectively, the screw fine adjustment module being made according to a principle of screw amplification, the feeding system control mechanism performing micro-feeding control of the sample fixing mechanism by controlling a rotation number or a rotation angle of the screw fine adjustment module.
5. The automatic grinding apparatus as claimed in claim 2, wherein the feed system control mechanism includes a man-machine interaction unit, an operation unit, a feedback detection unit, a drive output unit, and a motor transmission unit; the driving output unit is in transmission connection with the motor transmission unit, the motor transmission unit is connected with the sample fixing mechanism, the feedback detection unit is respectively coupled with the first sensor and the second sensor, the operation unit is respectively coupled with the driving output unit and the feedback detection unit, and the man-machine interaction unit is coupled with the operation unit.
6. The automatic grinding apparatus as claimed in claim 1, wherein the grinding table is provided with a grinding portion, a sand paper fixing module and a sand paper rotating motor, the sand paper fixing module is provided at the grinding portion for detachably fixing sand paper, and the sand paper rotating motor is connected with the grinding portion for controlling rotation of the grinding portion and rotation speed adjustment.
7. The automatic grinding apparatus as set forth in claim 6, wherein said grinding section is provided with at least two, different ones of said grinding sections being different in the number of sand papers fixed by default.
8. A metallographic slicing apparatus comprising the automatic grinding device according to any one of claims 1-7, a sampling device, a sealing device, a polishing device and a measurement analysis device, wherein the outlet of the sampling device is connected to the sealing device, the outlet of the sealing device is connected to the automatic grinding device, the outlet of the automatic grinding device is connected to the polishing device, and the outlet of the polishing device is connected to the measurement analysis device.
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| CN202111141398.7A CN113916625B (en) | 2021-09-28 | 2021-09-28 | Automatic grinding device and metallographic slicing equipment |
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| CN202111141398.7A CN113916625B (en) | 2021-09-28 | 2021-09-28 | Automatic grinding device and metallographic slicing equipment |
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| CN113916625A (en) | 2022-01-11 |
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