CN110712097B - Metallographic sample grinding device - Google Patents
Metallographic sample grinding device Download PDFInfo
- Publication number
- CN110712097B CN110712097B CN201911113751.3A CN201911113751A CN110712097B CN 110712097 B CN110712097 B CN 110712097B CN 201911113751 A CN201911113751 A CN 201911113751A CN 110712097 B CN110712097 B CN 110712097B
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- shaft
- driving
- polishing
- base
- winding drum
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- 238000000227 grinding Methods 0.000 title claims description 19
- 238000005498 polishing Methods 0.000 claims abstract description 62
- 238000004804 winding Methods 0.000 claims abstract description 34
- 239000000110 cooling liquid Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 56
- 238000003860 storage Methods 0.000 claims description 35
- 230000001681 protective effect Effects 0.000 claims description 27
- 239000011324 bead Substances 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 10
- 244000137852 Petrea volubilis Species 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 239000008234 soft water Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/006—Machines or devices using grinding or polishing belts; Accessories therefor for special purposes, e.g. for television tubes, car bumpers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/008—Machines comprising two or more tools or having several working posts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/006—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
- B24B55/03—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant designed as a complete equipment for feeding or clarifying coolant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
- B24B55/08—Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to the field of sample preparation for metallographic tests, in particular to a metallographic sample polishing device, which comprises a base, wherein a polishing module for polishing a metallographic sample, a clamping mechanism for clamping the metallographic sample, a feeding mechanism for driving the clamping mechanism to move and a cooling liquid circulating system for providing cooling liquid are arranged on the base, the polishing module comprises a polishing mechanism, the polishing mechanism comprises a driving winding drum and a driven winding drum, polishing media are wound on the driving winding drum and the driven winding drum together, the metallographic sample is polished by contacting the polishing media, and the driving winding drum is connected with a driving mechanism for driving the driving winding drum to rotate.
Description
Technical Field
The invention relates to the field of sample preparation for metallographic tests, in particular to a metallographic sample polishing device.
Background
In the research and production process of materials, metallographic grinding is often involved, and a common method is to grind the surface of the materials on sand paper and perform other grinding and polishing work, and then to carry out amplified observation. For nonferrous metals with softer hardness or easy oxidation, such as magnesium, wet grinding is needed, namely, metallographic sand paper and flowing water are used for matching to grind in order to ensure that the surface of the nonferrous metals does not produce scratches to influence the observation in the grinding process or to avoid the surface oxidation caused by the temperature rise in the friction process. At present, the common method is to manually grind metallographic sand paper on a flat plate placed above a water tank, and meanwhile, cooling water supply is needed at one side, so that the method is troublesome and laborious, and the cooling liquid is wasted in one-time use.
Disclosure of Invention
In order to solve the problem of low metallographic preparation efficiency in the prior art, the invention provides the metallographic sample polishing device with high efficiency.
The technical scheme adopted for solving the technical problems is as follows:
The utility model provides a metallographic sample grinding device, includes the base, the base on have and be used for carrying out the grinding and polishing module, be used for the fixture of centre gripping metallographic sample, be used for driving the feed mechanism of fixture motion and be used for providing the coolant liquid circulation system of coolant liquid, the grinding and polishing module include grinding and polishing mechanism, grinding and polishing mechanism include initiative reel and driven reel, initiative reel and driven reel on twine jointly and have the grinding and polishing medium, the metallographic sample polishes through the contact grinding and polishing medium, initiative reel be connected with its pivoted actuating mechanism of drive.
Further, the driving mechanism comprises a driving motor and a speed control mechanism, the speed control mechanism comprises a box body and a box cover, an input shaft and a power output shaft are rotationally connected to the box body, a first gear, a second gear and a third gear are connected to the input shaft through keys, a triple sliding gear is slidingly connected to the power output shaft through a spline, a control shaft is rotationally connected to the box body, a control handle is fixed to the end portion of the control shaft, an adjusting gear is mounted on the control shaft, the speed control mechanism further comprises a guide rail fixed to the box body, a connecting piece is slidingly arranged on the guide rail, a rack meshed with the adjusting gear is fixedly arranged at the lower end of the connecting piece, a shifting fork is fixedly arranged at the upper section of the connecting piece, and the shifting fork is inserted into a gap between the gears of the triple sliding gear to push a bead, so that the triple sliding gear is driven to slide; the rack and the connecting piece slide on the guide rail; the control handle is provided with a through hole, the outer end of the through hole is provided with a screw, the other end of the through hole is provided with a top bead, the top bead can move in the through hole, and a compression spring is arranged between the top bead and the screw; three concave holes are arranged on the box body at positions corresponding to the top beads; the driving output shaft of the driving motor and the input shaft of the speed control mechanism adopt V-shaped belt transmission.
Further, feed mechanism includes the chassis, the frame on be fixed with first riser, second riser and third riser, be fixed with step motor on the third riser, step motor's output shaft has the lead screw through the coupling joint, the lead screw both ends are installed on first riser and second riser through the bearing, install the guiding axle between first riser and the third riser, the guiding axle passes the second riser, the last slip of guiding axle is equipped with first slider, first slider and lead screw threaded connection, first slider and guiding axle contact position internally mounted have the ball.
Further, the clamping mechanism comprises a base fixed on the first sliding block; the base is provided with a through hole, a threaded shaft is arranged in the through hole, the lower end of the threaded shaft is provided with threads, the lower end of the base is rotationally connected with a first bevel gear which is in threaded connection with the threaded shaft, the base is rotationally connected with a second bevel gear meshed with the first bevel gear, the second bevel gear is fixedly connected with a pressure regulating handle, the base is provided with a pressure indicating plate for indicating the telescopic length of the threaded shaft, and the upper end of the threaded shaft is fixedly provided with a spring; the lower end of the spring is fixed on the threaded shaft, and the upper end of the spring is fixedly connected with a rotating arm; the rocking arm is articulated through the screw rod with the base, and the rocking arm front end articulates through the screw rod has the anchor clamps body that floats, and rocking arm and the anchor clamps body that floats all are equipped with the bulge for the anchor clamps body that floats only can rotate in a certain limit, and an air cylinder is installed respectively at anchor clamps body both ends, and the piston rod front end fixedly connected with of air cylinder is used for the splint of centre gripping metallographic specimen.
Further, the polishing mechanism comprises a bracket fixed on the base, and a groove and a small boss are arranged at the upper end of the bracket; a substrate is fixed above the bracket, a V-shaped lug is arranged at the lower end of the substrate, the V-shaped lug is matched with a groove of the bracket, two bearing brackets are fixed at one end of the substrate through bolts, and a bearing is placed at the inner end of each bearing bracket; the bearing frame is rotationally connected with a driving shaft through a bearing, the driving winding drum is arranged on the driving shaft, and the driving winding drum and the driving shaft are in transmission through keys; two support plates are fixed at the other end of the base plate through bolts, and the support plates are provided with semicircular slide rails; a second sliding block is arranged in the semicircular sliding rail in a sliding manner, a small boss is arranged at one end of the second sliding block, a compression spring is sleeved on the small boss, a driven shaft is fixed on the second sliding block, the driven shaft is connected with the driven winding drum in a rotating manner, a baffle is fixed at the tail end of the supporting plate, and a threaded hole is formed in the baffle; the adjusting screw is installed in the threaded hole of the baffle, and the tail end of the adjusting screw abuts against the second sliding block.
Further, a water drain channel for receiving cooling liquid is arranged below the polishing mechanism on the base, a first water storage tank and a second water storage tank are further arranged on the base, the bottom of the first water storage tank is lower than that of the second water storage tank, and the bottom of the second water storage tank is lower than the bottom wall of the water drain channel.
Further, the base is also provided with a first mounting platform for mounting the feeding mechanism, a second mounting platform for mounting the polishing mechanism, a third mounting platform for mounting the speed control mechanism and a fourth mounting platform for mounting the driving motor, and a semicircular boss is arranged on the bottom plate of the driving motor; the driving motor is arranged on the fourth mounting platform through a screw, the semicircular boss of the driving motor is matched with the semicircular groove on the fourth mounting platform, and the driving motor can move slightly up and down along the semicircular groove on the fourth mounting platform for tensioning the V-shaped belt.
Further, the cooling liquid circulation system comprises a submersible pump arranged in the first water storage tank, the submersible pump is connected with a soft water pipe, the clamping mechanism is provided with a water pipe clamp for positioning the soft water pipe, the first water storage tank is provided with a water tank cover, a first filter screen is arranged between the first water storage tank and the second water storage tank, a second filter screen is arranged above the second water storage tank, and a third filter screen is arranged between the sewer and the second water storage tank.
Further, the base is also provided with a protective cover group, the protective cover group comprises a first protective cover covered on the speed control mechanism, a second protective cover covered on the driving winding drum, a third protective cover covered on the clamping mechanism, the feeding mechanism is covered with a dust cover, the second protective cover is clamped on the first protective cover, and the dust cover is a retractable dust cover.
Further, the grinding and polishing medium is an annular sand paper tape or a polishing tape.
Advantageous effects
Automatic feeding and mechanical power grinding are adopted, so that time and labor are saved, and automatic preparation is realized;
the device is designed in a modular manner, so that the device can be adjusted little according to specific requirements, for example, two or three polishing modules can be adopted, sand paper or polishing belts can be adopted, the device is not limited to the module, and the application range is wide;
the cooling liquid circulating device is adopted, the multi-stage filtration is adopted, the cooling liquid is not wasted, and the cooling liquid can be recycled after filtration, so that the environment is protected;
the multi-stage grinding is adopted, so that the process from coarse grinding to fine grinding can be realized, the secondary clamping is avoided, and the time and the labor are saved;
The floating clamp is adopted, so that the angle can be automatically adjusted according to the surface shape of a processed sample;
the pressure adjusting device is arranged, so that the force of the sample pressed on the sand paper can be adjusted according to the sample requirement, and the force can be displayed approximately;
A speed adjusting device is arranged, and the grinding speed can be adjusted according to the sample requirement.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a top view of a metallographic sample polishing device of the present invention;
FIG. 2 is a perspective view of a metallographic sample polishing device of the present invention;
FIG. 3 is a block diagram of a protective hood set of the present invention;
FIG. 4 is a perspective view of a metallographic sample polishing device (with the protective cover set omitted) of the present invention;
FIG. 5 is a perspective view of a base;
FIG. 6 is a perspective view of the feed mechanism;
FIG. 7 is a perspective view of the clamping mechanism;
FIG. 8 is a partial detail view of the clamping mechanism;
FIG. 9 is a block diagram of the floating clamp body clamping surface of the clamping mechanism;
FIG. 10 is a perspective view of the polishing mechanism;
fig. 11 is a structural view of the drive shaft;
FIG. 12 is a block diagram of the active spool;
FIG. 13 is a perspective view of the driven reel;
FIG. 14 is a perspective view of a driven shaft;
FIG. 15 is a view showing the structure of one side of the driven reel;
FIG. 16 is a block diagram of the other side of the driven roll;
FIG. 17 is a perspective view of a speed control mechanism;
FIG. 18 is a block diagram of a housing of the speed control mechanism;
FIG. 19 is a perspective view of the internal structure of the speed control mechanism;
FIG. 20 is a top view of the internal structure of the speed control mechanism;
FIG. 21 is a side view of the internal structure of the speed control mechanism;
Fig. 22 is a perspective view of the driving motor.
Wherein 1, a base, 1-1, a first water storage tank, 1-2, a second water storage tank, 1-3, a water drain channel, 1-4, a first mounting platform, 1-5, a second mounting platform, 1-6, a third mounting platform, 1-7, a fourth mounting platform, 2, a feeding mechanism, 2-1, a bottom frame, 2-2, a first vertical plate, 2-3, a second vertical plate, 2-4, a third vertical plate, 2-5, a coupler, 2-6, a screw rod, 2-7, a guide shaft, 2-8, a first sliding block, 3, a clamping mechanism, 3-1, a base, 3-2, a threaded shaft, 3-3, a first bevel gear, 3-4, a second bevel gear, 3-5, a pressure regulating handle, 3-6, a spring, 3-7, a rotating arm, 3-8 parts of floating clamp body, 3-9 parts of air cylinder, 3-10 parts of clamp plate, 3-11 parts of pressure indicating plate, 4 parts of cooling liquid circulating system, 4-1 parts of submersible pump, 4-2 parts of water tank cover, 4-3 parts of first filter screen, 4-4 parts of second filter screen, 4-5 parts of third filter screen, 4-6 parts of soft water pipe, 4-7 parts of water pipe clamp, 5 parts of protective cover group, 5-1 parts of first protective cover, 5-2 parts of second protective cover, 5-3 parts of third protective cover, 5-4 parts of dust cover, 6 parts of speed control mechanism, 6-1 parts of box body, 6-2 parts of box cover, 6-3 parts of screw, 6-4 parts of shifting fork, 6-5 parts of rack, 6-6 parts of connecting piece, 6-7 parts of triple sliding gear, 6-8 parts of a first gear, 6-9 parts of a second gear, 6-10 parts of a third gear, 6-11 parts of an input shaft, 6-12 parts of a control handle, 6-13 parts of a power output shaft, 6-14 parts of a top ball, 6-15 parts of a guide rail, 6-16 parts of an adjusting gear, 6-17 parts of a control shaft, 6-18 parts of a concave hole, 7 parts of a polishing mechanism, 7-1 parts of a bracket, 7-2 parts of a base plate, 7-3 parts of a bearing bracket, 7-4 parts of a driving shaft, 7-5 parts of a driving reel, 7-6 parts of a supporting plate, 7-7 parts of a second slider, 7-8 parts of a driven shaft, 7-9 parts of a baffle, 7-10 parts of an adjusting screw, 7-11 parts of a driven reel, 8 parts of a driving motor, 8-1 parts of a driving output shaft, 8-2 parts of a straight slot, 8-3 parts of a V-shaped belt, 8-4 parts of a semicircular boss.
Detailed Description
As shown in fig. 1, fig. 2 and fig. 4, a metallographic sample polishing device comprises a base 1, wherein a polishing module for polishing a metallographic sample, a clamping mechanism 3 for clamping the metallographic sample, a feeding mechanism 2 for driving the clamping mechanism 3 to move and a cooling liquid circulation system 4 for providing cooling liquid are arranged on the base 1, the polishing module comprises a polishing mechanism 7, the polishing mechanism 7 comprises a driving winding drum 7-5 and a driven winding drum 7-11, polishing media are wound on the driving winding drum 7-5 and the driven winding drum 7-11 together, the polishing media are annular sand paper tapes or polishing tapes, the metallographic sample is polished by contacting the polishing media, and the driving winding drum 7-5 is connected with a driving mechanism for driving the metallographic sample to rotate.
As shown in fig. 17-22, the driving mechanism comprises a driving motor 8 and a speed control mechanism 6, the speed control mechanism 6 comprises a box body 6-1 and a box cover 6-2, the box body 6-1 and the box cover 6-2 are fixed by screws, an input shaft 6-11 and a power output shaft 6-13 are rotatably connected to the box body 6-1, a first gear 6-8, a second gear 6-9 and a third gear 6-10 are connected to the input shaft 6-11 in a key manner, the first gear 6-8, the second gear 6-9 and the third gear 6-10 are mounted on the input shaft 6-11 through clamp springs and shaft shoulders, a triple sliding gear 6-7 is slidably connected to the power output shaft 6-13 through splines, a control shaft 6-17 is rotatably connected to the box body 6-1, and the output shaft 6-13, the input shaft 6-11 and the control shaft 6-17 are mounted on the box body 6-1 through bearings. The end part of the control shaft 6-17 is fixed with a control handle 6-12, the control shaft 6-17 is provided with an adjusting gear 6-16, and the adjusting gear 6-16 is arranged on the control shaft 6-17 through a key and a clamp spring.
The speed control mechanism further comprises a guide rail 6-15 fixed on the box body 6-1, the guide rail 6-15 is provided with a connecting piece 6-6 in a sliding mode, a rack 6-5 meshed with the adjusting gear 6-16 is fixed at the lower end of the connecting piece 6-6, a shifting fork 6-4 is fixed at the upper section of the connecting piece 6-6, and the lower end of the shifting fork 6-4 is fixed with the connecting piece 6-6 through bolts; the connecting piece 6-6 and the rack 6-5 are fixed by bolts. The shifting fork 6-4 is inserted into a gap between gears of the triple sliding gears 6-7 to prop up the beads 6-14, so that the triple sliding gears 6-7 are driven to slide; the rack 6-5 and the connecting piece 6-6 slide on the guide rail 6-15; the control handle 6-12 is provided with a through hole, the outer end of the through hole is provided with a screw 6-3, the other end of the through hole is provided with a top bead 6-14, the top bead 6-14 can move in the through hole, and a compression spring is arranged between the top bead 6-14 and the screw 6-3; three concave holes 6-18 are arranged on the box body 6-1 at positions corresponding to the top beads 6-14; the driving output shaft 8-1 of the driving motor 8 and the input shaft 6-11 of the speed control mechanism 6 adopt V-shaped belt transmission.
As shown in FIG. 6, the feeding mechanism 2 comprises a bottom frame 2-1, a first vertical plate 2-2 is fixed on the bottom frame 2-1, a second vertical plate 2-3 and a third vertical plate 2-4 are fixed on the third vertical plate 2-4, a stepping motor 2-9 is fixed on the third vertical plate 2-4, an output shaft of the stepping motor 2-9 is connected with a lead screw 2-6 through a coupler 2-5, two ends of the lead screw 2-6 are arranged on the first vertical plate 2-2 and the second vertical plate 2-3 through bearings, a guide shaft 2-7 is arranged between the first vertical plate 2-2 and the third vertical plate 2-4, the guide shaft 2-7 penetrates through the second vertical plate 2-3, a first sliding block 2-8 is slidably arranged on the guide shaft 2-7, the first sliding block 2-8 is in threaded connection with the lead screw 2-6, and balls are arranged in the contact part of the first sliding block 2-8 and the guide shaft 2-7.
As shown in fig. 7-9, the clamping mechanism 3 includes a base 3-1 fixed on a first slider 2-8; the base 3-1 is provided with a through hole, a threaded shaft 3-2 is arranged in the through hole, threads are arranged at the lower end of the threaded shaft 3-2, the lower end of the base 3-1 is rotationally connected with a first bevel gear 3-3, the first bevel gear 3-3 is in threaded connection with the threaded shaft 3-2, a second bevel gear 3-4 meshed with the first bevel gear 3-3 is rotationally connected to the base, the second bevel gear 3-4 is fixedly connected with a pressure regulating handle 3-5, the first bevel gear 3-3 is arranged on the base 3-1 through a thrust bearing, the second bevel gear 3-4 is arranged on the handle 3-5 through a key and a shaft end nut, and the second bevel gear 3-4 and the pressure regulating handle 3-5 are arranged on the base 3-1 through the thrust bearing.
The base 3-1 is provided with a pressure indicating plate 3-11 for indicating the telescopic length of the threaded shaft 3-2, and the upper end of the threaded shaft 3-2 is fixedly provided with a spring 3-6; the lower end of the spring 3-6 is fixed on the threaded shaft 3-2, and the upper end of the spring 3-6 is fixedly connected with the rotating arm 3-7; the rotating arm 3-7 is hinged with the base 3-1 through a screw, the foremost end of the rotating arm 3-7 is hinged with the floating clamp body 3-8 through the screw, the rotating arm 3-7 and the floating clamp body 3-8 are both provided with protruding parts, the floating clamp body 3-8 can only rotate within a certain range, two ends of the floating clamp body 3-8 are respectively provided with an air cylinder 3-9, and the front end of a piston rod of the air cylinder 3-9 is fixedly connected with a clamping plate 3-10 for clamping a metallographic sample.
As shown in fig. 10-16, the polishing mechanism 7 includes a bracket 7-1 fixed on the base 1, and a groove and a small boss are provided at the upper end of the bracket 7-1; a base plate 7-2 is fixed above the bracket 7-1, a V-shaped lug is arranged at the lower end of the base plate 7-2, the V-shaped lug is matched with a groove of the bracket 7-1, two bearing frames 7-3 are fixed at one end of the base plate 7-2 through bolts, and a bearing is placed at the inner end of each bearing frame 7-3; the bearing frame 7-3 is rotatably connected with a driving shaft 7-4 through a bearing, the driving winding drum 7-5 is arranged on the driving shaft 7-4, and the driving winding drum 7-5 and the driving shaft 7-4 are in transmission through keys; the other end of the base plate 7-2 is fixed with two support plates 7-6 through bolts, and the support plates 7-6 are provided with semicircular slide rails; a second sliding block 7-7 is arranged in the semicircular sliding rail in a sliding way, a small boss is arranged at one end of the second sliding block 7-7, a compression spring is sleeved on the small boss, a driven shaft 7-8 is fixed on the second sliding block 7-7, a driven reel 7-11 is connected onto the driven shaft 7-8 in a rotating way, a baffle 7-9 is fixed at the tail end of the supporting plate 7-6, and a threaded hole is formed in the baffle 7-9; the adjusting screw 7-10 is installed in the threaded hole of the baffle 7-9, and the tail end of the adjusting screw 7-10 is propped against the second sliding block 7-7. The driving shaft 7-4 is provided with a key slot and a shaft shoulder, the driving winding drum 7-5 is arranged on the driving shaft 17-4 and is axially fixed by the shaft shoulder and the snap spring, the second sliding block 7-7 is provided with a round hole, the two ends of the driven shaft 7-8 are provided with the shaft shoulder, the shaft shoulder is inserted into the round hole of the second sliding block 7-7, the driven winding drum 7-11 is internally provided with a bearing hole, the driven winding drum 7-11 is arranged on the driven winding drum through a bearing, one end of the driven winding drum is positioned by the shaft shoulder, and the other end of the driven winding drum is positioned by the snap spring.
As shown in figure 5, a water flowing channel 1-3 for receiving cooling liquid is arranged below a polishing mechanism 7 on a base 1, a first water storage tank 1-1 and a second water storage tank 1-2 are also arranged on the base 1, the bottom of the first water storage tank 1-1 is lower than the bottom of the second water storage tank 1-2, and the bottom of the second water storage tank 1-2 is lower than the bottom wall of the water flowing channel 1-3.
The base 1 is also provided with a first mounting platform 1-4 for mounting the feeding mechanism 2, a second mounting platform 1-5 for mounting the polishing mechanism 7, a third mounting platform 1-6 for mounting the speed control mechanism 6 and a fourth mounting platform 1-7 for mounting the driving motor 8, the bracket 7-1 of the polishing mechanism 7 is fixed on the second mounting platform 1-5 through screws, and a semicircular boss 8-4 is arranged on the bottom plate of the driving motor 8; the driving motor 8 is mounted on the fourth mounting platform 1-7 through screws, the semicircular boss 8-4 of the driving motor 8 is matched with the semicircular groove on the fourth mounting platform 1-7, and the driving motor 8 can move slightly up and down along the semicircular groove on the fourth mounting platform 1-7 for tensioning the V-shaped belt 8-3. The bottom plate of the driving motor 8 is provided with a straight slot 8-2 for screw installation.
Referring to fig. 4, the cooling liquid circulation system 4 includes a submersible pump 4-1 disposed in a first water storage tank 1-1, the submersible pump 4-1 is connected with a flexible water pipe 4-6, a water pipe clamp 4-7 for positioning the flexible water pipe 4-6 is disposed on a clamping mechanism 3, a water tank cover 4-2 is disposed on the first water storage tank 1-1, a first filter screen 4-3 is disposed between the first water storage tank 1-1 and a second water storage tank 1-2, a second filter screen 4-4 is disposed above the second water storage tank 1-2, and a third filter screen 4-5 is disposed between a water drain channel 1-3 and the second water storage tank 1-2.
As shown in fig. 3, the base 1 is further provided with a protective cover set 5, the protective cover set 5 comprises a first protective cover 5-1 covered on the speed control mechanism 6, a second protective cover 5-2 covered on the driving winding drum 7-5, a third protective cover 5-3 covered on the clamping mechanism 3, the feeding mechanism 2 is covered with a dust cover 5-4, the second protective cover 5-2 is clamped on the first protective cover 5-1, and the dust cover 5-4 is a retractable dust cover.
It should be understood that the above-described specific embodiments are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications which extend from the spirit of the present invention are within the scope of the present invention.
Claims (7)
1. The metallographic sample polishing device is characterized by comprising a base (1), wherein a polishing module for polishing a metallographic sample, a clamping mechanism (3) for clamping the metallographic sample, a feeding mechanism (2) for driving the clamping mechanism (3) to move and a cooling liquid circulation system (4) for providing cooling liquid are arranged on the base (1), the polishing module comprises a polishing mechanism (7), the polishing mechanism (7) comprises a driving winding drum (7-5) and a driven winding drum (7-11), polishing media are wound on the driving winding drum (7-5) and the driven winding drum (7-11) together, the metallographic sample is polished by contacting the polishing media, and the driving winding drum (7-5) is connected with a driving mechanism for driving the driving winding drum to rotate;
The driving mechanism comprises a driving motor (8) and a speed control mechanism (6), the speed control mechanism (6) comprises a box body (6-1) and a box cover (6-2), an input shaft (6-11) and a power output shaft (6-13) are rotatably connected to the box body (6-1), a first gear (6-8), a second gear (6-9) and a third gear (6-10) are connected to the input shaft (6-11) in a key manner, a triple sliding gear (6-7) is slidably connected to the power output shaft (6-13) through a spline, a control shaft (6-17) is rotatably connected to the box body (6-1), a control handle (6-12) is fixed to the end portion of the control shaft (6-17), an adjusting gear (6-16) is mounted on the control shaft (6-17), the speed control mechanism (6) further comprises a guide rail (6-15) fixed to the box body (6-1), a connecting piece (6-6) is slidably arranged on the guide rail (6-15), a connecting piece (6-6) is fixedly meshed with the lower end portion of the connecting piece (6-6) and the adjusting gear (6-5), the shifting fork (6-4) is inserted into a gap between gears of the triple sliding gears (6-7) to prop up the beads (6-14), so that the triple sliding gears (6-7) are driven to slide; the rack (6-5) and the connecting piece (6-6) slide on the guide rail (6-15); the control handle (6-12) is provided with a through hole, the outer end of the through hole is provided with a screw (6-3), the other end of the through hole is provided with a top bead (6-14), the top bead (6-14) can move in the through hole, and a compression spring is arranged between the top bead (6-14) and the screw (6-3); three concave holes (6-18) are arranged on the box body (6-1) at positions corresponding to the top beads (6-14); the driving output shaft (8-1) of the driving motor (8) and the input shaft (6-11) of the speed control mechanism (6) adopt V-shaped belt transmission;
The feeding mechanism (2) comprises a bottom frame (2-1), a first vertical plate (2-2) is fixed on the bottom frame (2-1), a second vertical plate (2-3) and a third vertical plate (2-4) are fixed on the third vertical plate (2-4), a stepping motor (2-9) is fixed on the third vertical plate, an output shaft of the stepping motor (2-9) is connected with a screw (2-6) through a coupling (2-5), two ends of the screw (2-6) are arranged on the first vertical plate (2-2) and the second vertical plate (2-3) through bearings, a guide shaft (2-7) is arranged between the first vertical plate (2-2) and the third vertical plate (2-4), the guide shaft (2-7) penetrates through the second vertical plate (2-3), a first sliding block (2-8) is arranged on the guide shaft (2-7) in a sliding mode, and the first sliding block (2-8) is in threaded connection with the screw (2-6), and a ball bearing part is arranged inside the first sliding block (2-8) and the guide shaft (2-7);
The clamping mechanism (3) comprises a base (3-1) fixed on a first sliding block (2-8); the base (3-1) is provided with a through hole, a threaded shaft (3-2) is arranged in the through hole, threads are arranged at the lower end of the threaded shaft (3-2), the lower end of the base (3-1) is rotationally connected with a first bevel gear (3-3), the first bevel gear (3-3) is in threaded connection with the threaded shaft (3-2), a second bevel gear (3-4) meshed with the first bevel gear (3-3) is rotationally connected to the base, the second bevel gear (3-4) is fixedly connected with a pressure regulating handle (3-5), a pressure indicating plate (3-11) for indicating the telescopic length of the threaded shaft (3-2) is arranged on the base (3-1), and a spring (3-6) is fixedly arranged at the upper end of the threaded shaft (3-2); the lower end of the spring (3-6) is fixed on the threaded shaft (3-2), and the upper end of the spring (3-6) is fixedly connected with the rotating arm (3-7); the rotating arm (3-7) is hinged with the base (3-1) through a screw, the foremost end of the rotating arm (3-7) is hinged with the floating clamp body (3-8) through the screw, the rotating arm (3-7) and the floating clamp body (3-8) are both provided with protruding parts, the floating clamp body (3-8) can only rotate within a certain range, two ends of the floating clamp body (3-8) are respectively provided with a cylinder (3-9), and the front end of a piston rod of the cylinder (3-9) is fixedly connected with a clamping plate (3-10) for clamping a metallographic sample.
2. A metallographic sample polishing device according to claim 1, wherein: the polishing mechanism (7) comprises a bracket (7-1) fixed on the base (1), and a groove and a small boss are arranged at the upper end of the bracket (7-1); a base plate (7-2) is fixed above the bracket (7-1), a V-shaped lug is arranged at the lower end of the base plate (7-2), the V-shaped lug is matched with a groove of the bracket (7-1), two bearing frames (7-3) are fixed at one end of the base plate (7-2) through bolts, and a bearing is placed at the inner end of each bearing frame (7-3); the bearing frame (7-3) is rotationally connected with the driving shaft (7-4) through a bearing, the driving winding drum (7-5) is arranged on the driving shaft (7-4), and the driving winding drum (7-5) and the driving shaft (7-4) are in transmission through keys; two support plates (7-6) are fixed at the other end of the base plate (7-2) through bolts, and the support plates (7-6) are provided with semicircular slide rails; a second sliding block (7-7) is arranged in the semicircular sliding rail in a sliding way, a small boss is arranged at one end of the second sliding block (7-7), a compression spring is sleeved on the small boss, a driven shaft (7-8) is fixed on the second sliding block (7-7), the driven shaft (7-8) is rotationally connected with a driven winding drum (7-11), a baffle (7-9) is fixed at the tail end of a supporting plate (7-6), and a threaded hole is formed in the baffle (7-9); the adjusting screw (7-10) is arranged in a threaded hole of the baffle plate (7-9), and the tail end of the adjusting screw (7-10) is abutted against the second sliding block (7-7).
3. A metallographic sample polishing device according to claim 1, wherein: the base (1) is provided with a water flow channel (1-3) for receiving cooling liquid below the polishing mechanism (7), the base (1) is also provided with a first water storage tank (1-1) and a second water storage tank (1-2), the bottom of the first water storage tank (1-1) is lower than the bottom of the second water storage tank (1-2), and the bottom of the second water storage tank (1-2) is lower than the bottom wall of the water flow channel (1-3).
4. A metallographic sample polishing device according to claim 1, wherein: the base (1) is also provided with a first mounting platform (1-4) for mounting the feeding mechanism (2), a second mounting platform (1-5) for mounting the polishing mechanism (7), a third mounting platform (1-6) for mounting the speed control mechanism (6) and a fourth mounting platform (1-7) for mounting the driving motor (8), and a semicircular boss (8-4) is arranged on the bottom plate of the driving motor (8); the driving motor (8) is arranged on the fourth mounting platform (1-7) through screws, the semicircular boss (8-4) of the driving motor (8) is matched with the semicircular groove on the fourth mounting platform (1-7), and the driving motor (8) can move slightly up and down along the semicircular groove on the fourth mounting platform (1-7) for tensioning the V-shaped belt (8-3).
5. A metallographic sample polishing device according to claim 3, wherein: the cooling liquid circulation system (4) comprises a submersible pump (4-1) arranged in a first water storage tank (1-1), the submersible pump (4-1) is connected with a soft water pipe (4-6), a water pipe clamp (4-7) used for positioning the soft water pipe (4-6) is arranged on a clamping mechanism (3), a water tank cover (4-2) is arranged on the first water storage tank (1-1), a first filter screen (4-3) is arranged between the first water storage tank (1-1) and a second water storage tank (1-2), a second filter screen (4-4) is arranged above the second water storage tank (1-2), and a third filter screen (4-5) is arranged between a water flow channel (1-3) and the second water storage tank (1-2).
6. A metallographic sample polishing device according to claim 1, wherein: the base (1) is further provided with a protective cover group (5), the protective cover group (5) comprises a first protective cover (5-1) covered on the speed control mechanism (6), a second protective cover (5-2) covered on the driving winding drum (7-5), a third protective cover (5-3) covered on the clamping mechanism (3), the feeding mechanism (2) is covered with a dust cover (5-4), the second protective cover (5-2) is clamped on the first protective cover (5-1), and the dust cover (5-4) is a retractable dust cover.
7. A metallographic sample polishing device according to claim 1, wherein: the grinding and polishing medium is an annular sand paper tape or a polishing tape.
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| CN201911113751.3A CN110712097B (en) | 2019-11-14 | 2019-11-14 | Metallographic sample grinding device |
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| CN110712097B true CN110712097B (en) | 2024-05-28 |
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