CN103884567B - A kind of metallography microscope sample pre-mill - Google Patents

A kind of metallography microscope sample pre-mill Download PDF

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Publication number
CN103884567B
CN103884567B CN201410112535.8A CN201410112535A CN103884567B CN 103884567 B CN103884567 B CN 103884567B CN 201410112535 A CN201410112535 A CN 201410112535A CN 103884567 B CN103884567 B CN 103884567B
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China
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door frame
slide plate
pedestal
perforate
dividing plate
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Expired - Fee Related
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CN201410112535.8A
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CN103884567A (en
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肖华攀
方子帆
何孔德
方婧
万皓
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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Abstract

A kind of metallography microscope sample pre-mill, comprise pedestal, the both sides, inner side of the upper part of pedestal offer track, slide plate is provided with in track, pedestal bottom is provided with for driving slide plate to move forward and backward slide plate power system, slide bar and sand paper clamp system is provided with bottom slide plate, pedestal top is provided with door frame, door frame is provided with clamping device and water inlet pipe, dividing plate is provided with dividing plate and opens chute, moving back and forth for slide bar, chute surrounding raises up, the lower part space of pedestal is flow to by dividing plate chute for preventing chilled water, the centre position, bottom of dividing plate is provided with freeing port, door frame is provided with door frame perforate, screw thread is had in perforate, be communicated with by door frame fluting between adjacent door frame perforate.Use this device specimen surface cut in the same direction, and even surface roughness; Mechanical grip sample also guarantees that sample and sand paper are in fit-state all the time, laborsaving and reliable; Chilled water can solve the heating problem of sample and grind off the washing problems of the grains of sand, simple for structure.

Description

A kind of metallography microscope sample pre-mill
Technical field
The present invention relates to a kind of equipment for metallography microscope sample mechanical polishing, particularly a kind of design of metallography microscope sample pre-mill.
Background technology
In order to differentiate metallographic microstructure and study, need the sample first analyzed metal material being prepared into certain size, being observed by metaloscope through grinding, after the operation such as polishing and corrosion, analyzing metal microstructure and distribution situation thereof.Grinding is to obtain smooth flour milling, for polishing is prepared, is generally divided into corase grind and fine grinding, the darker polishing scratch stayed when the object of fine grinding is and eliminates corase grind.The fine grinding commonly used has manual polishing and mechanical polishing, and both all need hand-held sample: manual polishing is that one direction passing grinds on abrasive paper for metallograph, mentions sample, make it to depart from sand paper when retracting; Mechanical polishing is gently pressed in by sample flour milling to post on the pre-mill of sand paper, and utilize the sand paper rotated that metallographic specimen is levigate, conventional equipment is disc type pre-mill.
Although disc type pre-mill can improve grind efficiency, but requirement prepared by the metallographic specimen that sometimes can not meet degree of precision, because it can not ensure sample cut in the same direction, and rotational speed is different everywhere due to disk, and thus the roughness of specimen surface also seems even not.Meanwhile, disc type pre-mill generally needs hand-held sample, and this not only easily causes the inclination of sample and steps on limit, but also there is the risk that sample taken out of by high speed rotating plate.If publication number is CN102528612A, patent name is the patent of " a kind of Linear reciprocating type pre-milling machine ", reciprocating mechanism is utilized to make grinding platform do straight reciprocating motion, although which ensure that specimen surface cut in the same direction, but because metallographic specimen is manual clamping, thus easily cause the inclination of sample and step on limit, and there is certain danger.Publication number is CN103234800A, patent name is the patent of " a kind of pre-grinding test sample of gold phase machine ", utilize specimen holder to avoid and manual clamping is carried out to sample grinding in process, time saving and energy saving, but the structure of whole pre-mill is very complicated, kinematic train is more, meanwhile, in the friction process of sample and sand paper, the size of sample is in continuous reduction, and sample is just fixed by clamping device that this patent adopts in advance, be thus difficult to ensure that sample is in fit-state with sand paper all the time.In addition, also there is two problems in above-mentioned two patents simultaneously: one be reciprocating mechanism used is slider-crank mechanism in essence, and this mechanism is difficult to ensure that slide block at the uniform velocity moves back and forth in fact, thus cannot ensure that sample grinds even surface roughness.If attempt to realize at the uniform velocity moving back and forth of slide block by Electric Machine Control, then higher to the requirement of motor, cost is larger; Two is do not have to solve grinding the heating problem of sample in process and grinding off the washing problems of the grains of sand, sample thus cannot be avoided to be heated and to cause tissue change, coarse sand grain also cannot be avoided to take in fine grinding operation, cause the polishing scratch being difficult to eliminate.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of metallography microscope sample pre-mill, specimen surface cut can be ensured in the same direction, make specimen surface roughness even, can mechanical grip be realized again and keep sample and sand paper to be in fit-state, can also solve and grinding the heating problem of sample in process and grinding off the washing problems of the grains of sand.
A kind of metallography microscope sample pre-mill, it comprises pedestal, pedestal dividing plate separates and pedestal is divided into upper and lower two parts, the both sides, inner side of the upper part of pedestal offer track, slide plate is provided with in track, the lower part of pedestal is provided with slide plate power system, slide plate power system moves forward and backward for driving slide plate, slide bar and sand paper clamp system is provided with bottom slide plate, pedestal top is provided with door frame, door frame is provided with clamping device and water inlet pipe, described dividing plate is provided with dividing plate and opens chute, moving back and forth for slide bar, chute surrounding raises up, the lower part space of pedestal is flow to by dividing plate chute for preventing chilled water, the centre position, bottom of dividing plate is provided with freeing port, described door frame is provided with several door frame perforates, screw thread is had in perforate, be communicated with by door frame fluting between adjacent door frame perforate, for the movement of sample clamping mechanism with fixing, described clamping device is by piston rod, sleeve, spring, snap ring and elastic ring composition, one end of piston rod and sleeve are socketed, spring and snap ring are all located in sleeve, elastic ring is located at the inwall upper end of snap ring, described piston rod there is the external thread corresponding with door frame perforate and to slot the breach of the same width with door frame, the height of breach is consistent with the degree of depth that door frame is slotted, and when piston rod and door frame are turned on and maybe will be tightened, just align in the lower surface just slotted with door frame in the upper surface of piston rod breach, and establish the rotation of piston rod to drive sleeve rotating, described sleeve lining be provided with two to straight type groove with and be connected their ring groove, for rotation and the location of snap ring, wherein one end of straight type groove is blocked, the two ends of straight type groove are all openings, there is a pair bulge-structure the upper end of described snap ring, the shape of bulge-structure is mated with straight type groove and ring groove.
Above-mentioned slide plate power system comprises motor, motor output shaft is provided with belt, and the belt other end is wound around cylindrical cam, and the two ends of cylindrical cam are fixed on pedestal lower end by bearing seat, cylindrical cam establishes rail groove, and the bottom of slide bar is embedded in the rail groove of cylindrical cam.
Above-mentioned slide plate symmetria bilateralis is furnished with several rollers, and roller rolls on base track.
Above-mentioned sand paper clamp system comprises the slide plate perforate be arranged on slide plate, has screw thread in perforate, and offer slide plate fluting in the inner side of slide plate, slide plate is hinged with a depression bar, there is depression bar perforate one end of depression bar, and depression bar perforate is blind hole.
Above-mentioned dividing plate, in the feature of " surrounding is high, middle low ", is convenient to chilled water and is discharged.
Above-mentioned door frame two ends have been arranged symmetrically with four chucking lugs, for being installed into water pipe.
Above-mentioned water inlet pipe is provided with several apopores, and the quantity of apopore is the twice of door frame the number of openings, and the position of apopore is corresponding with the position of door frame perforate.
Fix by the end cap of head bolts and base ends between above-mentioned bearing seat and pedestal.
The present invention achieves following technique effect:
Use specimen surface cut of the present invention in the same direction, and even surface roughness; Mechanical grip sample also guarantees that sample and sand paper are in fit-state all the time, laborsaving and reliable; Chilled water can solve the heating problem of sample and grind off the washing problems of the grains of sand, simple for structure.In addition, the present invention contributes to improving sand paper utilization factor, is applicable to grinding of different size standard sample, has good application prospect.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is mainly the partial perspective view of pedestal of the present invention;
Fig. 3 is mainly the partial perspective view of slide plate of the present invention;
Fig. 4 is mainly part sectioned view during clamping device of the present invention work;
Fig. 5 is the partial perspective view of sleeve of the present invention;
Fig. 6 is the partial perspective view of water inlet pipe of the present invention.
In figure: pedestal 1, dividing plate 2, dividing plate fluting 2-A, freeing port 2-B, slide plate 3, slide plate perforate 3-A, slide plate fluting 3-B, depression bar bolt 4, depression bar 5, depression bar perforate 5-A, hinged place 5-B, roller 6, door frame 7, chucking lug 7-A, door frame perforate 7-B, door frame fluting 7-C, clamping device 8, external thread 8-1A, breach 8-1B, piston rod 8-1, sleeve 8-2, straight type groove 8-2A, 8-2B, ring groove 8-2C, spring 8-3, snap ring 8-4, elastic ring 8-5, sample 9, water inlet pipe 10, apopore 10-A, water inlet 10-B, sand paper 11, head bolts 12, end cap 13, belt 14, motor 15, slide bar 16, cylindrical cam 17, bearing seat 18.
Embodiment
Shown in accompanying drawing 1, a kind of metallography microscope sample pre-mill, be made up of pedestal 1, slide plate 3, clamping device 8, door frame 7, water inlet pipe 10, slide bar 16 etc., slide plate power system comprises motor 15, motor output shaft is provided with belt 14, and the belt other end is wound around cylindrical cam 17, and the two ends of cylindrical cam are fixed on pedestal lower end by bearing seat 18, cylindrical cam establishes rail groove, and the bottom of slide bar is embedded in the rail groove of cylindrical cam.
As in Fig. 2, pedestal 1 dividing plate 2 separates, pedestal 1 is divided into upper and lower two parts, track is offered on the both sides, inner side of pedestal 1 upper part, for moving back and forth of slide plate 2, be provided with the bearing seat 18 for support cylinder cam 17 at the two ends of pedestal 1 lower part, fix by head bolts 12 and end cap 13 between bearing seat 18 and pedestal 1, be crossed with door frame 7 in the centre of pedestal 1 upper part, dividing plate 2, be welded and fixed between door frame 7 and pedestal 1.
As in Fig. 2, dividing plate 2 is provided with dividing plate fluting 2-A, and for moving back and forth of slide bar 16, fluting 2-A surrounding raises up, and flows to the lower part space of pedestal 1 for preventing chilled water by dividing plate fluting 2-A.The centre position, bottom of dividing plate 2 is provided with freeing port 2-B, and dividing plate 2 is in the feature of " surrounding is high, middle low ", is convenient to chilled water and discharges.
As in Fig. 1,2, door frame 7 is provided with several door frame perforates 7-B, has screw thread in perforate, be communicated with by door frame fluting 7-C between adjacent door frame perforate 7-B, for the movement of sample clamping mechanism 8 with fixing, door frame 7 two ends have been arranged symmetrically with four chucking lug 7-A, are mainly used in being installed into water pipe 10.
As in Fig. 3, slide plate is provided with sand paper clamp system, and sand paper clamp system is included in slide plate 3 and is provided with slide plate perforate 3-A, has screw thread in perforate, offers slide plate fluting 3-B in the inner side of slide plate 3.Slide plate 3 is hinged with a depression bar 5, there is depression bar perforate 5-A one end of depression bar 5, and depression bar perforate 5-A is blind hole, is fixed when clamping by depression bar bolt 4.
As in Fig. 3, slide plate 3 symmetria bilateralis is furnished with several rollers 6, and roller 6 can roll on pedestal 1 track, is fixed with slide bar 16 below slide plate 3, and one end of slide bar 16 is embedded in the middle of the rail groove of cylindrical cam 17, forms cam mechanism.
As in Fig. 4, clamping device 8 is made up of piston rod 8-1, sleeve 8-2, spring 8-3, snap ring 8-4 and elastic ring 8-5 etc.One end and the sleeve 8-2 of piston rod 8-1 are socketed, and spring 8-3 and snap ring 8-4 is all located in sleeve 8-2, and elastic ring 8-5 is located at the inwall upper end of snap ring 8-4.
As in Fig. 4, piston rod 8-1 there is the external thread 8-1A corresponding with door frame perforate 7-B, there is the breach 8-1B of the same width of 7-C of slotting with door frame, the height of breach 8-1B is consistent with the degree of depth of door frame fluting 7-C, and specify to turn on once piston rod 8-1 and door frame 7 maybe will tighten, just slot with the door frame lower surface E of 7-C of the upper surface F of piston rod breach 8-1B just aligns, and establishes the rotation of piston rod 8-1 that moving sleeve 8-2 can not be with to rotate.
As in Fig. 5, sleeve 8-2 inwall is provided with two to straight type groove 8-2A with 8-2B and the ring groove 8-2C being connected them, and for rotation and the location of snap ring 8-4, wherein one end of straight type groove 8-2A is blocked, and the two ends of straight type groove 8-2B are all openings.There is a pair bulge-structure the upper end of snap ring 8-4, and the shape of bulge-structure is mated with straight type groove and ring groove, and snap ring 8-4 has multiple different structure, can with the sample of different structure size with the use of.
As in Fig. 6, water inlet pipe 10 is provided with several apopores 10-A, and the quantity of apopore 10-A is the twice of door frame perforate 7-B quantity, and the position of apopore 10-A is corresponding with the position of door frame perforate 7-B.
Owing to have employed said structure, the step of pre-grinding metallography microscope sample is:
First, sand paper 11 is filled in slide plate fluting 3-B, rotate depression bar 5, make slide plate perforate 3-A coaxial with depression bar perforate 5-A, compress depression bar 5 by rotating depression bar bolt 4, thus clamp the sand paper 11 be contained on slide plate 3.Secondly, mention piston rod 8-1 by hand, and the snap ring 8-4 that selection is mated with sample, the bulge-structure of snap ring 8-4 is filled in straight type groove 8-2B, by hand snap ring 8-4 upwards pushed and rotate, overcoming the acting force of spring 8-3, making two of snap ring 8-4 bulge-structures rely on ring groove 8-2C passages to move in straight type groove 8-2A, because one end of straight type groove 8-2A is blocked, thus snap ring 8-4 can not drop.Again, loaded by sample 9 in snap ring 8-4, sample 9, owing to being subject to the extruding of elastic ring 8-5 on snap ring 8-4, is locked each other with snap ring 8-4, and thus in the moving process of clamping device 8, sample 9 can not drop.Then, utilizing the matching relationship of external thread and door frame fluting 7-C internal thread on piston rod 8-1, by tightening the spring 8-3 that piston rod 8-1 comes in clamp sleeve 8-2, making metallographic specimen 9 and sand paper 11 remain laminating.Then, open the water swivel be connected with water inlet pipe 10, water flows into from water inlet 10-B, is flow on the slide plate sand paper 11 on clamping device 8 both sides by apopore 10-A.Last starter motor 15 drives cylindrical cam 17 to rotate by belt 14, relies on cam mechanism, realizes slide plate 3 uniform motion back and forth on base track.Move back and forth in process at slide plate 3, water is discharged eventually through the freeing port 2-B on dividing plate 2.
In the course of the work, the position in the face of grinding is converted if want, namely clamping device 8 is moved, can first unscrew piston rod 8-1, and mention piston rod 8-1 and rely on breach 8-1B to slot coordinating of 7-C with door frame, piston rod 8-1 be moved to next door frame perforate 7-B place, now put down piston rod 8-1 again and start to tighten, just carry out the spring 8-3 in clamp sleeve 8-2 by piston rod 8-1, make metallographic specimen 9 and sand paper 11 keep fitting, and ensure sample 9 surface scratch self-consistentency.

Claims (5)

1. a metallography microscope sample pre-mill, it is characterized in that: it comprises pedestal (1), pedestal dividing plate (2) separates and pedestal is divided into upper and lower two parts, the both sides, inner side of the upper part of pedestal offer track, slide plate (3) is provided with in track, the lower part of pedestal is provided with slide plate power system, slide plate power system moves forward and backward for driving slide plate, slide bar (16) and sand paper clamp system is provided with bottom slide plate, pedestal top is provided with door frame (7), door frame is provided with clamping device (8) and water inlet pipe (10), described dividing plate is provided with dividing plate chute (2-A), moving back and forth for slide bar, dividing plate chute (2-A) surrounding raises up, the lower part space of pedestal is flow to by dividing plate chute (2-A) for preventing chilled water, the centre position, bottom of dividing plate is provided with freeing port (2-B), described door frame is provided with several door frame perforates (7-B), screw thread is had in perforate, be communicated with by door frame fluting (7-C) between adjacent door frame perforate, for the movement of sample clamping mechanism with fixing, described clamping device is by piston rod (8-1), sleeve (8-2), spring (8-3), snap ring (8-4) and elastic ring (8-5) composition, one end of piston rod and sleeve are socketed, spring and snap ring are all located in sleeve, elastic ring is located at the inwall upper end of snap ring, described piston rod there is the external thread (8-1A) corresponding with door frame perforate and to slot the breach (8-1B) of the same width with door frame, the height of breach is consistent with the degree of depth that door frame is slotted, and when piston rod and door frame are turned on and maybe will be tightened, just align in the lower surface just slotted with door frame in the upper surface of piston rod breach, and the rotation of piston rod can not drive sleeve rotating, described sleeve lining is provided with two to straight type groove (8-2A) and (8-2B) and the ring groove (8-2C) being connected them, for rotation and the location of snap ring, the two ends of straight type groove are equipped with opening, wherein the opening of one end of straight type groove is blocked, there is a pair bulge-structure the upper end of described snap ring, the shape of bulge-structure is mated with straight type groove and ring groove,
Described slide plate power system comprises motor (15), motor output shaft is provided with belt (14), the belt other end is wound around cylindrical cam (17), the two ends of cylindrical cam are fixed on pedestal lower end by bearing seat (18), cylindrical cam establishes rail groove, and the bottom of slide bar is embedded in the rail groove of cylindrical cam;
Described slide plate symmetria bilateralis is furnished with several rollers (6), and roller rolls on base track;
Fix by the end cap (13) of head bolts (12) and base ends between described bearing seat and pedestal.
2. metallography microscope sample pre-mill according to claim 1, it is characterized in that: described sand paper clamp system comprises the slide plate perforate (3-A) be arranged on slide plate, screw thread is had in perforate, slide plate fluting (3-B) is offered in the inner side of slide plate, slide plate is hinged with a depression bar (5), there is depression bar perforate (5-A) one end of depression bar, and depression bar perforate is blind hole.
3. metallography microscope sample pre-mill according to claim 1, is characterized in that: described dividing plate, in the feature of " surrounding is high, middle low ", is convenient to chilled water and is discharged.
4. metallography microscope sample pre-mill according to claim 1, is characterized in that: described door frame two ends have been arranged symmetrically with four chucking lugs (7-A), for being installed into water pipe.
5. metallography microscope sample pre-mill according to claim 1, it is characterized in that: described water inlet pipe is provided with several apopores (10-A), the quantity of apopore is the twice of door frame the number of openings, and the position of apopore is corresponding with the position of door frame perforate.
CN201410112535.8A 2014-03-25 2014-03-25 A kind of metallography microscope sample pre-mill Expired - Fee Related CN103884567B (en)

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CN105510107B (en) * 2016-01-25 2018-03-16 太原科技大学 A kind of metallographic specimen burnishing device
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