CN212471136U - Preparation facilities of cup emery wheel that grit was arranged in order - Google Patents
Preparation facilities of cup emery wheel that grit was arranged in order Download PDFInfo
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- CN212471136U CN212471136U CN202022008604.4U CN202022008604U CN212471136U CN 212471136 U CN212471136 U CN 212471136U CN 202022008604 U CN202022008604 U CN 202022008604U CN 212471136 U CN212471136 U CN 212471136U
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- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229910001651 emery Inorganic materials 0.000 title claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 131
- 238000000227 grinding Methods 0.000 claims abstract description 130
- 238000005507 spraying Methods 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 239000003082 abrasive agent Substances 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 31
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 25
- 238000005245 sintering Methods 0.000 claims abstract description 12
- 238000003754 machining Methods 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 49
- 230000005540 biological transmission Effects 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims 2
- 239000006185 dispersion Substances 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 14
- 238000003892 spreading Methods 0.000 abstract description 7
- 230000007480 spreading Effects 0.000 abstract description 7
- 230000009471 action Effects 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 7
- 239000007767 bonding agent Substances 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000013519 translation Methods 0.000 description 4
- 229910000906 Bronze Inorganic materials 0.000 description 3
- 239000010974 bronze Substances 0.000 description 3
- 239000006061 abrasive grain Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model provides a preparation facilities of cup emery wheel that grit was arranged in order, include: a frame; the workbench is adjusted in position on the rack through a workbench position adjusting mechanism, and the grinding wheel base body is placed on the workbench for machining; abrasive spreading means for spraying abrasive on the grinding wheel base; and the laser sintering device is used for sintering the grinding materials scattered on the grinding wheel base body in real time. The utility model discloses a preparation facilities of cup emery wheel that grit was arranged in order realizes that interim storage silo ration negative pressure inhales the material and the malleation spouts the material through eccentric reciprocating motion from the driving wheel to combine workstation position adjustment mechanism to realize that the abrasive material forms orderly law at grinding wheel base member terminal surface and arrange, laser sintering device is right simultaneously the abrasive material of grinding wheel base member terminal surface is sintered, and the accurate flexibility of arranging of abrasive material obtains the cup emery wheel that the grit law was arranged in order.
Description
Technical Field
The utility model relates to a grinding apparatus preparation technical field, concretely relates to preparation facilities of cup emery wheel that grit was arranged in order.
Background
With the rapid development of modern manufacturing industry, the requirements on the processing precision and quality of various materials are higher and higher, the difficult-to-process materials such as stainless steel, hard alloy and the like have excellent mechanical properties, but the difficult-to-process materials have poor processing properties, and particularly during grinding, the problems of high grinding force, high grinding temperature, low efficiency and the like exist, the processed surface of the difficult-to-process materials is easy to burn and generates a hardened layer, so that parts are scrapped and resources are wasted.
The grinding wheel with the traditional abrasive particles arranged randomly has small holding force on the abrasive particles, the abrasive particles are easy to fall off, the surface roughness of a workpiece is increased, the service life of the grinding wheel is shortened, and meanwhile, the discharge of cutting scraps and the entering of grinding fluid are not facilitated, so that the burn of the workpiece is easy to cause.
Patent publication No. CN105058255A discloses an apparatus for manufacturing a grinding wheel with ordered arrangement of magnetic abrasive particles, which utilizes the action of a magnetic field to arrange the abrasive particles in order, and is effective only for magnetic metal abrasive particles due to the dependence on the magnetic field, and the arrangement form is limited.
The patent with publication number CN105415216A proposes a method for preparing a diamond grinding wheel with orderly arranged abrasive particles by using a 3D printing technology, and the arrangement mode of the abrasive particles is not limited, but only is the regular arrangement of abrasive particle groups, and the ordered arrangement of single abrasive particles or a small amount of abrasive particles cannot be achieved.
Patent publication No. CN204450260U discloses a device for orderly arranging abrasive particles in multiple layers, which uses orderly arranged fine suction pipes to suck abrasive particles and then implant the abrasive particles into a matrix to realize the orderly arrangement of the abrasive particles, but the grinding wheel manufactured by this method needs to specially manufacture corresponding fine suction pipe groups, and the fine suction pipes have small apertures and are difficult to manufacture, so that it is inconvenient in practice.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a preparation facilities of cup emery wheel that grit was arranged in order realizes that interim storage silo ration negative pressure inhales the material and the malleation spouts the material through eccentric reciprocating motion from the driving wheel to combine workstation position adjustment mechanism to realize that the abrasive material forms orderly law at emery wheel base member terminal surface and arrange, laser sintering device is right simultaneously the abrasive material of emery wheel base member terminal surface is sintered, and the accurate flexibility of arranging of abrasive material obtains the cup emery wheel that the grit law was arranged in order.
In order to achieve the above purpose, the utility model discloses a technical scheme who takes is:
a preparation facilities of cup emery wheel of grit ordered arrangement includes: a frame; the workbench is arranged on the rack, the position of the workbench on the rack is adjusted through a workbench position adjusting mechanism, and the grinding wheel matrix is placed on the workbench for processing; the abrasive material spreading device is arranged on the machine frame and is used for spraying abrasive materials on the grinding wheel base body; and the laser sintering device is arranged on the frame and is used for sintering the grinding materials scattered on the grinding wheel base body in real time.
Further, the abrasive spreading device includes: the first machine shell is arranged on the rack through a first base, and the first machine shell and the first base form a storage bin; a side cover disposed on the first case; the material sucking and spraying mechanism comprises a first transmission mechanism, an eccentric driven wheel, a plunger and a material moving disc, wherein the first transmission mechanism outputs to the eccentric driven wheel; the eccentric driven wheel is connected with the plunger through a pin shaft; the material moving disc is arranged on the first machine shell through a bearing, the first machine shell and the first base form the storage bin, the side cover and the first shell form a material moving bin, the lower part of the material moving bin is a circular arc-shaped sliding rail, and a sliding groove is formed in the material moving disc and can slide along the sliding rail; the discharge port of the storage bin penetrates through the partition plate between the storage bin and the material moving bin and is arranged on the first machine shell; a material moving barrel is arranged in the material moving disk, the plunger extends into one end of the material moving barrel, and a temporary storage bin is arranged at the other end of the material moving barrel; a material moving outlet is formed in the first machine shell; and the material spraying port is connected with the material moving outlet through a material spraying channel, and the material spraying channel and the material spraying port are arranged on the first shell.
Further, the first transmission mechanism includes: the first motor is arranged on the first shell; the first driving wheel is output by the first motor; the first driven wheel is connected with the first driving wheel through a belt, the eccentric driven wheel and the first driven wheel are located on two sides of the main side wall of the first shell, and the first driven wheel is output to the eccentric driven wheel through a bearing.
Furthermore, a sealing gasket is arranged at the joint of the side cover and the first case, and a sealing ring is arranged at the contact part of the plunger and the material moving cylinder.
Further, the table position adjusting mechanism includes: the second transmission mechanism comprises a second motor, a second driving wheel and a second driven wheel, the second motor outputs to the second driving wheel, and the second driving wheel is connected with the second driven wheel through a belt; one end of the screw rod penetrates through the rack to be connected with the second driven wheel, the other end of the screw rod penetrates through the workbench to be rotatably arranged on the rack, and the workbench can move along the screw rod in the rotating process of the screw rod; and the limiting rod penetrates through the workbench and is arranged on the rack, and the workbench can slide along the limiting rod.
Further, the work table includes: the screw rod and the limiting rod penetrate through the second base to be arranged on the rack, and an accommodating groove is formed in the second base; the rotating motor is arranged in the accommodating groove and outputs to the grinding wheel rotating seat; and the grinding wheel rotating seat is provided with a rotating part, the rotating part is arranged in the accommodating groove, the rotating part is positioned above the rotating motor and is connected with the rotating motor through a rotating shaft, and the grinding wheel base body is arranged in the grinding wheel accommodating groove of the grinding wheel rotating seat.
Compared with the prior art, the technical scheme of the utility model have following advantage:
(1) the utility model discloses a preparation facilities of cup emery wheel that grit was arranged in order realizes that interim storage silo ration negative pressure inhales the material and the malleation spouts the material through eccentric reciprocating motion from the driving wheel to combine workstation position adjustment mechanism to realize that the abrasive material forms orderly law at grinding wheel base member terminal surface and arrange, laser sintering device is right simultaneously the abrasive material of grinding wheel base member terminal surface is sintered, and the accurate flexibility of arranging of abrasive material obtains the cup emery wheel that the grit law was arranged in order.
(2) The utility model discloses a preparation facilities of cup emery wheel that grit was arranged in order is applicable to the cup emery wheel of the abrasive material preparation of various materials, the utility model discloses a preparation facilities simple structure, it is easy and simple to handle, be favorable to improving the manufacturing efficiency of grinding apparatus.
Drawings
The technical solution and the advantages of the present invention will be made apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a structural diagram of a device for manufacturing a cup-shaped grinding wheel with orderly arranged abrasive particles according to an embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of the abrasive dispensing apparatus of the present invention with the side cover removed;
FIG. 3 is a cross-sectional view of a first housing section of an abrasive dispensing apparatus according to an embodiment of the invention;
FIG. 4 is a sectional view of the abrasive dispensing apparatus according to an embodiment of the present invention in a material sucking state (upper limit position I);
fig. 5 is a sectional view of the abrasive scattering device according to an embodiment of the present invention in a material spraying state (lower limit position two);
fig. 6 is a partial cross-sectional view of a material transfer portion according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of a table according to an embodiment of the present invention;
fig. 8 is a flowchart illustrating a method for manufacturing a cup-shaped grinding wheel with orderly arranged abrasive grains according to an embodiment of the present invention;
fig. 9 is a structural view of a cup-shaped grinding wheel in which the abrasives are concentrically arranged according to an embodiment of the present invention;
FIG. 10 is a view showing a structure of a cup-shaped grinding wheel in which abrasives are arranged in a fan-shaped circumferential arrangement according to an embodiment of the present invention;
fig. 11 is a structural view of a cup-shaped grinding wheel in which the abrasives are arranged in a spiral line according to an embodiment of the present invention.
Reference numbers in the figures:
1 machine frame, 2 work tables, 21 second base, 22 rotating motor, 23 grinding wheel rotating base, 231 rotating part, 3 abrasive spreading device, 31 first machine shell, 32 first base, 33 storage bin, 331 discharge port, 341 first motor, 342 first driving wheel, 343 first driven wheel, 344 eccentric driven wheel, 345 plunger, 346 material moving disc, 347 material moving cylinder, 348 temporary storage bin, 349 material moving outlet, 35 partition board, 36 material moving bin, 37 material spraying port, 38 material spraying channel, 39 side cover, 4 laser sintering device, 51 second driving wheel, 52 second driven wheel, 53 screw rod, 54 spacing rod, 6 grinding wheel base body, 7 material limiting part and 8 sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment provides a device for preparing a cup-shaped grinding wheel with orderly arranged abrasive particles, which comprises a workbench 2 arranged on a frame 1, an abrasive spreading device 3, a laser sintering device 4 and a workbench position adjusting mechanism, as shown in fig. 1. A grinding wheel base body 6 is placed on the worktable 2 for processing, and the abrasive material spreading device 3 is used for spraying abrasive material on the grinding wheel base body 6. The laser sintering device 4 is used for sintering the grinding materials scattered on the grinding wheel base body 6 in real time. The workbench position adjusting mechanism is used for adjusting the position of the workbench. Generally, the inner diameter of the grinding wheel base body 6 is 30-50 mm, and the outer diameter is 100-150 mm.
As shown in fig. 2 to 5, the abrasive scattering device 3 includes a first housing 31, a suction/ejection mechanism, an ejection opening 37, and a side cover 39, and the abrasive scattering device 3 is disposed on the frame 1 through a first base 32. The first housing 31 and the first base 32 form the storage bin 33, and the bottom of the storage bin 33 is provided with a slope of 45-60 degrees, so that the abrasive in the storage bin 33 flows into the discharge hole 331 under the action of gravity. The side cover 39 and the first housing 31 enclose a material moving bin 36, the lower part of the material moving bin 36 is an arc-shaped sliding rail, and a sliding groove capable of sliding along the sliding rail is arranged on the material moving tray 346. The side cover 39 is disposed on the first housing 31, and a gasket is disposed at a connection position of the side cover 39 and the first housing 31.
The sucking and spraying mechanism comprises a first transmission mechanism, an eccentric driven wheel 344, a plunger 345 and the material moving disc 346, the first transmission mechanism outputs to the eccentric driven wheel 344, and the eccentric driven wheel 344 is connected with the plunger 345 through a pin shaft. The material moving tray 346 is disposed on the first housing 31 by a bearing. The discharge port 331 of the storage bin 33 is disposed on the first machine shell 31 through the partition 35 between the storage bin 33 and the material moving bin 36. As shown in fig. 6, a material moving barrel 347 is disposed in the material moving tray 346, the plunger 345 extends into one end of the material moving barrel 347, a temporary storage bin 348 is disposed at the other end of the material moving barrel 347, and a material moving outlet 349 is disposed on the first housing 31. The spraying opening 37 is connected with the material moving outlet 349 through a spraying channel 38, the spraying channel 38 and the spraying opening 37 are arranged on the first machine shell 31, and the hole diameters of the spraying channel 38, the spraying opening 37, the material moving outlet 349 and the material discharging opening 331 are preferably 0.15-0.45 mm. Under the driving of the first transmission mechanism, the eccentric driven wheel 344 drives the plunger 345 to perform crank motion, and the material moving disc 346 is always abutted to the slide rail in the whole motion process. Setting the initial position of the plunger 345, the position of the discharge port 331 and the position of the material moving outlet 349, so that the plunger 345 reaches the first upper limit position when the temporary storage bin 348 moves to the discharge port 331, and ensuring that a negative pressure environment is formed in the material moving barrel 347 at the moment; when the temporary storage silo 348 moves to the material moving outlet 349, the plunger 345 reaches the second lower limit position, and a positive pressure environment is formed in the material moving barrel 347. When the temporary storage bin 348 moves to the discharge port 331, the plunger 345 forms a negative pressure environment in the moving barrel 347 during the upward movement, and the abrasive at the discharge port 331 is sucked into the temporary storage bin 348. With the continuous rotation of the eccentric driven wheel 344, the plunger 345 moves downward, a positive pressure environment is formed in the material moving barrel 347, when the temporary storage bin 348 moves to the material moving outlet 349, the abrasive in the temporary storage bin 348 is output to the material spraying opening 37 through the material spraying channel 38 under the action of positive pressure, and then is sprayed on the grinding wheel base body 6, and the distance from the material spraying opening 37 to the upper surface of the grinding wheel base body 6 is about 5mm, so that the material spraying effect is ensured. In order to ensure that the plunger 347 can form a negative pressure environment, a sealing ring 8 is provided at a portion where the plunger 345 abuts against the plunger 347. The material limiting part 7 is arranged at the connecting part of the temporary storage bin 348 and the material moving barrel 347, and the amount of material suction and material spraying at each time can be controlled by controlling the shape of the material limiting part 7, so that the shape of abrasive material spread on the grinding wheel base body 6 is controlled.
The first transmission mechanism includes a first motor 341, a first driving wheel 342, and a first driven wheel 343, the first motor 341 is disposed on the first housing 31, the first motor 341 outputs to the first driving wheel 342, the first driven wheel 343 is connected to the first driving wheel 342 by a belt, the eccentric driven wheel 344 and the first driven wheel 343 are located on both sides of a main sidewall of the first housing 31, and the first driven wheel 343 outputs to the eccentric driven wheel 344 through a bearing. The rotating speed of the eccentric driven wheel 344 is preferably 1000-2000 r/min.
Workstation position adjustment mechanism includes second drive mechanism 5, lead screw 54 and gag lever post 55, second drive mechanism 5 includes second motor, second action wheel 52 and second from driving wheel 53, the second motor sets up in the frame, the second motor output extremely second action wheel 52, second action wheel 52 pass through the belt with second is connected from driving wheel 53. One end of the screw rod 54 penetrates through the frame 1 to be connected with the second driven wheel 53, the other end of the screw rod 54 penetrates through the workbench 2 to be rotatably arranged on the frame 1, and the workbench 2 can move along the screw rod 54 in the rotating process of the screw rod 54. The limiting rod 55 penetrates through the workbench 2 and is arranged on the rack 1, and the workbench 2 can slide along the limiting rod 55. The second motor is realized through just reversing workstation 2 is followed lead screw 54's axial displacement, gag lever post 55 is used for right workstation 2 is spacing to be ensured workstation 2 gliding stability prevents workstation 2 influences the preparation effect at gliding in-process skew. And the second motor controls the moving speed of the workbench 2 to be 5-15 mm/s.
The laser pulse frequency of the laser sintering device 4 is 0.3-1 kHz, the power is 30-100W, and the relative scanning speed is 1-5 mm/s. The laser sintering device 4 comprises a laser, and the laser is a YAG solid laser. A polarizer is arranged in a laser head of the laser, and a laser beam can scan in a horizontal plane through the polarizer to control a sintering range.
As shown in fig. 7, the workbench 2 includes a second base 21, a rotating motor 22 and a grinding wheel rotating base 23, the screw 54 and the limiting rod 55 pass through the second base 21 and are disposed on the rack 1, and the second base 21 is provided with an accommodating groove. The rotating motor 22 is disposed in the accommodating groove, and the rotating motor 22 outputs the grinding wheel rotating seat 23. The grinding wheel rotating base 23 is provided with a rotating portion 231, the rotating portion 231 is arranged in the containing groove, the rotating portion 231 is located above the rotating motor 22 and is connected with the rotating motor 22 through a rotating shaft, and the grinding wheel base body 6 is arranged in the grinding wheel containing groove of the grinding wheel rotating base 23. In the process of preparing the cup-shaped grinding wheel, the control system controls the first motor 341, the second motor and the rotating motor 22 to be matched with each other, so that the shape of spraying on the surface of the grinding wheel base body 6 is controlled while spraying is carried out, a preset spraying shape is obtained, and the cup-shaped grinding wheel with the abrasive particles regularly and orderly arranged in concentric circles, spirals, sectors and the like can be conveniently manufactured. The rotating speed of the grinding wheel rotating seat 23 under the control of the rotating motor 22 is preferably 0.1-5 r/min. The grinding wheel rotating seat 23 is connected with an output shaft of the rotating motor 22 through a thrust ball bearing, so that abrasion among components is avoided, and the service life of equipment is prolonged.
As shown in fig. 8, the method for manufacturing the cup-shaped grinding wheel by using the device for manufacturing the cup-shaped grinding wheel with the orderly arranged abrasive particles of the present invention comprises the following steps: s10, loading the abrasive, and placing the abrasive in the abrasive dispersing device 3. S20, placing the grinding wheel base 6 on the work table 2, and then placing the work table 2 below the laser sintering device 4. S30, spraying abrasive, and starting the abrasive spreading device 3 to spray the abrasive onto the grinding wheel base body 6. And S40, sintering, namely starting the laser sintering device 4 to sinter the grinding materials on the grinding wheel base body 6 in real time.
The abrasive comprises abrasive particles and a metal bonding agent, and the particle size of the abrasive particles is 60-200 meshes.
The grinding wheel with the three abrasive material arrangement modes is used for explaining the preparation method of the utility model:
example 1
S10 is a specific example of a cup-shaped grinding wheel with a base body with an inner diameter of 30mm, an outer diameter of 100mm, a grinding wheel granularity of 100 (i.e., the circumferential spacing of the abrasive particles is 0.255mm, and the radial spacing of the abrasive particles is 0.255mm), and the abrasive particles regularly arranged in concentric circles, as shown in FIG. 9. And abrasive materials fully mixed by SiC abrasive particles and bronze bonding agents are added into the storage bin 33.
When the abrasives are arranged in concentric circles
The working radius of the nth turn is:
R2+(n-1)·b， (2)
the interval of time during which the abrasive material is falling,
if the arc length is calculated according to the arc length,
during each one-turn material spraying, the grinding wheel base body 6 does not translate, but only rotates, at the end of each one-turn, the grinding wheel base body 6 translates to start a new one-turn, and it is known that, in an ideal case, the time for the grinding wheel base body 6 to complete translation is just the abrasive drop time interval Δ t, and then:
meanwhile, the translation movement of the grinding wheel base body 6 needs pause time in each circle,
consists of:
obtaining:
in practical application, a, b and omega are taken for convenient control and stability2、R2、R1P is a known parameter, and can be obtained from (1), (4) and (8):
wherein:
And each time a new circle is reached, the translation time of the grinding wheel matrix 6 needs to be suspended:
wherein a is the circumferential spacing of the abrasive particles, b is the radial spacing (helical pitch) of the abrasive particles, omega1Is the angular velocity of rotation of the substrate, omega2Is the rotation angular velocity of the eccentric shaft, v is the translation velocity of the matrix, n is the number of turns of the abrasive grain arrangement, R2Is the grinding wheel bore radius, R1Is the external radius of grinding wheel, p is the screw pitch of leading screw, omega3And c is the angular speed of the screw, and is the equal number of the fan-shaped circumference.
S20, the table 2 is moved to the right side of the laser sintering device 4, and the grinding wheel base 6 is placed. And when the power supply is turned on, the second transmission mechanism drives the screw rod 35 to move, so that the workbench 2 is movably arranged below the laser sintering device 4, and the edge of the inner cylindrical surface of the grinding wheel base body 6 moves to the position right below the spray port 37.
S30, when the grinding wheel base 6 is in place, the grinding material has gathered near the discharge hole 331 due to gravity, the first transmission mechanism drives the eccentric driven wheel 344 to rotate clockwise (right view) at 1440r/min, and in each rotation of the eccentric driven wheel 344, when the material moving disc 346 reaches the discharge hole 331, the plunger 345 reaches one of the extreme positions, and negative pressure is formed in the material moving cylinder 347 of the material moving disc 346 to suck the grinding material; when the material moving disk 346 reaches the material moving outlet 349, the plunger 345 reaches another limit position, and the abrasive is ejected from the material ejecting opening 37 due to the positive pressure. Through the negative pressure material suction and the positive pressure conveying, under the action of the material limiting part 7, quantitative abrasive materials with the thickness of about 0.01mm are obtained each time3And is ejected from the ejection port 37 at time intervals of about 0.04 second. Meanwhile, the grinding wheel base body 6 slowly rotates anticlockwise (overlook) at the speed of about 0.408r/min, and the first circle of grinding materials are arranged after about 2.45 min.
The workbench 2 translates to the axial direction of the limiting rod 54 at a speed of about 6.12mm/s for 0.04s, so that the material spraying opening 37 is aligned to the starting point of the second circle, the grinding wheel base body 6 rotates slowly counterclockwise (overlooked) at a speed of about 0.407r/min, and the second circle of grinding materials is arranged after about 2.46 min. By analogy, each motion parameter can be calculated by the equations (9), (10) and (11).
And S40, sintering, wherein when the abrasive particles are orderly arranged, the laser beam emitted by the laser sintering device 4 passes through the polarizer and then scans the horizontal plane direction, and the arranged abrasive materials are sintered in real time. After the first layer of abrasive particles is sintered, sintering of the second layer can be carried out or the workbench 3 is moved to the right side of the laser sintering device 4, and the grinding wheel can be taken down to finish the preparation.
Example 2:
s10 is a cup-shaped grinding wheel with a base body inner diameter of 30mm, an outer diameter of 100mm, a grinding wheel granularity of 100 (namely, the circumferential spacing of the grinding particles is 0.255mm, the radial spacing of the grinding particles is 0.255mm), the sector circumference equal division number is 8, and the grinding particles are arranged in a sector circumference, as shown in FIG. 10. And abrasive materials fully mixed by SiC abrasive particles and bronze bonding agents are added into the storage bin 33.
When the grinding materials are arranged in a fan-shaped circumference,
c is an even number in order to space the abrasive and non-abrasive regions. The mechanism realizes that no abrasive exists in a part of areas through the rapid rotation of the grinding wheel matrix within a specific time, and ideally, the grinding wheel matrix rotates within a time interval of abrasive falling
And (4) radian.
Then in the fast spin phase:
other motion parameters are the same as when the abrasives are arranged in concentric circles.
S20 moves the table 2 to the right side of the laser sintering device 4, and the grinding wheel base 6 is set. And when the power supply is turned on, the second transmission mechanism drives the screw rod 35 to move, so that the workbench 2 is movably arranged below the laser sintering device 4, and the edge of the inner cylindrical surface of the grinding wheel base body 6 moves to the position right below the spray port 37.
S30, when the grinding wheel base 6 is in place, the grinding material has gathered near the discharge hole 331 due to gravity, the first transmission mechanism drives the eccentric driven wheel 344 to rotate clockwise (right view) at 1440r/min, and in each rotation of the eccentric driven wheel 344, when the material moving disc 346 reaches the discharge hole 331, the plunger 345 reaches one of the extreme positions, and negative pressure is formed in the material moving cylinder 347 of the material moving disc 346 to suck the grinding material; when the material moving disk 346 reaches the material moving outlet 349, the plunger 345 reaches another limit position, and the abrasive is ejected from the material ejecting opening 37 due to the positive pressure. Through the negative pressure material suction and the positive pressure conveying, under the action of the material limiting part 7, quantitative abrasive materials with the thickness of about 0.01mm are obtained each time3And is ejected from the ejection port 37 at time intervals of about 0.04 seconds. Meanwhile, the grinding wheel base body 6 slowly rotates anticlockwise (overlook) at the speed of about 0.408r/min, after about 18.4s, the grinding wheel base body 6 moves anticlockwise (overlook) at the speed of 180r/min for 0.04s, so that the spraying port 37 reaches the starting point of the next section of circular arc, after 18.4s, the grinding wheel base body 6 moves anticlockwise (overlook) at the speed of 180r/min for 0.04s, and the steps are repeated for 2 times, and the arrangement of the first circle of grinding materials is completed. The workbench 2 translates towards the axial direction of the limiting rod 54 for 0.04s at a speed of about 6.12mm/s, so that the material spraying opening 37 is aligned to the starting point of the second circle, the grinding wheel base body 6 rotates slowly anticlockwise (overlooking) at a speed of about 0.407r/min, after about 18.5s, the base body 36 moves anticlockwise (overlooking) at a speed of 180r/min for 0.04s, so that the material spraying opening 37 reaches the starting point of the next section of circular arc, and the steps are repeated for 3 times again, and the arrangement of the abrasive particles in the second circle is completed. By analogy, each motion parameter can be calculated by the equations (9), (10), (11) and (12).
And S40, sintering, wherein when the abrasive particles are orderly arranged, the laser beam emitted by the laser sintering device 4 passes through the polarizer and then scans the horizontal plane direction, and the arranged abrasive materials are sintered in real time. After the first layer of abrasive particles is sintered, sintering of the second layer can be carried out or the workbench 3 is moved to the right side of the laser sintering device 4, and the grinding wheel can be taken down to finish the preparation.
Example 3:
s10 is a specific example of a cup-shaped grinding wheel with a matrix inner diameter of 30mm, an outer diameter of 100mm, a grinding wheel granularity of 100 (i.e. the circumferential spacing of the grinding particles is 0.255mm, and the radial spacing of the grinding particles is 0.255mm), and grinding particles arranged in a spiral line, as shown in FIG. 11. And abrasive materials fully mixed by SiC abrasive particles and bronze bonding agents are added into the storage bin 33.
When the grinding materials are arranged in a spiral line,
all movements were continuous movements without abrupt changes in speed.
The polar equation of the helix arranged according to the law of motion is:
in order to realize that the intervals between the grinding grains are approximately equal, the eccentric shaft needs to do accelerated rotation, the distance between the two grinding material piles is calculated at the T moment and the T + delta T moment, because the delta T is very small, the distance is regarded as a section of circular arc taking the phase diameter at the T moment as the radius,
a＝ω1(T+Δt-T)·(R2+vT)， (14)
and also
To obtain
Bringing (16) and (3) into (14) and setting omega3For known parameters, solve:
where T is the time to start the process.
In summary, when the abrasives are arranged in a spiral line, the rotating speed of the substrate is as follows:
the eccentric shaft performs accelerated rotation according to the rule of formula (17).
S20 moves the table 2 to the right side of the laser sintering device 4, and the grinding wheel base 6 is set. And when the power supply is turned on, the second transmission mechanism drives the screw rod 35 to move, so that the workbench 2 is movably arranged below the laser sintering device 4, and the edge of the inner cylindrical surface of the grinding wheel base body 6 moves to the position right below the spray port 37.
S30, abrasive is sprayed, when the grinding wheel base 6 is in place, the abrasive is gathered near the discharge hole 331 due to gravity, the workbench 2 moves towards the X positive direction at the speed of 0.1mm/S, and the grinding wheel base 6 rotates anticlockwise (overlooked) at a constant speed of 23.53 r/min. The first transmission mechanism drives the eccentric transmission wheel 344 to rotate clockwise (right view) at an initial speed of 1821.4r/min, and the function relationship is determined by the following equation (17): omega2When the material moving disc 346 reaches the material outlet 331 in each rotation of the eccentric driven wheel 344, the plunger 345 reaches one of the limit positions thereof, and negative pressure is formed in the material moving cylinder 347 of the material moving disc 346, so that abrasive is sucked; when the material moving disk 346 reaches the material moving outlet 349, the plunger 345 reaches another limit position, and the abrasive is ejected from the material ejecting opening 37 due to the positive pressure. Through the negative pressure material suction and the positive pressure conveying, under the action of the material limiting part 7, quantitative abrasive materials with the thickness of about 0.01mm are obtained each time3And is ejected from the ejection port 331 at a time interval determined by the formula (3). The device operates according to the motion law as described above until the arrangement of the abrasive particles is finished.
And S40, sintering, wherein when the abrasive particles are orderly arranged, the laser beam emitted by the laser sintering device 4 passes through the polarizer and then scans the X-axis direction and the Y-axis direction, and the arranged abrasive materials are sintered in real time. After the first layer of abrasive particles is sintered, sintering of the second layer can be carried out or the workbench 2 is moved to the right side of the laser sintering device 4, and the grinding wheel can be taken down to finish the preparation.
The above is only the exemplary embodiment of the present invention, and not the limitation of the present invention, all the equivalent structures or equivalent processes of the present invention are used, or directly or indirectly applied to other related technical fields, and the same principle is included in the patent protection scope of the present invention.
Claims (6)
1. The utility model provides a preparation facilities of cup emery wheel that grit was arranged in order which characterized in that includes:
a frame (1);
the grinding wheel machine comprises a rack (1), a workbench (2), a grinding wheel base body (6) and a grinding wheel base body, wherein the workbench (2) is arranged on the rack (1), the position of the workbench (2) on the rack (1) is adjusted through a workbench (2) position adjusting mechanism, and the grinding wheel base body (6) is placed on the workbench (2) for machining;
abrasive distribution means (3) arranged on said machine frame (1), said abrasive distribution means (3) being adapted to spray abrasive material onto said grinding wheel base body (6); and
and the laser sintering device (4) is arranged on the machine frame (1) and is used for sintering the grinding materials scattered on the grinding wheel base body (6) in real time.
2. The apparatus for making cup-shaped grinding wheel with ordered arrangement of abrasive particles according to claim 1, characterized in that said abrasive dispersion means (3) comprises:
the first machine shell (31) is arranged on the machine frame (1) through a first base (32), and the first machine shell (31) and the first base (32) form a storage bin (33);
a side cover (39) provided on the first housing (31);
the material sucking and spraying mechanism comprises a first transmission mechanism, an eccentric driven wheel (344), a plunger (345) and a material moving disc (346), and the first transmission mechanism outputs to the eccentric driven wheel (344); the eccentric driven wheel (344) is connected with the plunger (345) through a pin shaft; the material moving disc (346) is arranged on the first machine shell (31) through a bearing, the first machine shell (31) and the first base (32) form the storage bin (33), the side cover (39) and the first machine shell (31) enclose a material moving bin (36), the lower part of the material moving bin (36) is a circular arc-shaped sliding rail, and a sliding chute is arranged on the material moving disc (346) and can slide along the sliding rail; the discharge hole (331) of the storage bin (33) is arranged on the first machine shell (31) through a partition plate (35) between the storage bin (33) and the material moving bin (36); a material moving barrel (347) is arranged in the material moving tray (346), the plunger (345) extends into one end of the material moving barrel (347), and a temporary storage bin (348) is arranged at the other end of the material moving barrel (347); a material moving outlet (349) is arranged on the first machine shell (31); and
and the material spraying opening (37) is connected with the material moving outlet (349) through a material spraying channel (38), and the material spraying channel (38) and the material spraying opening (37) are arranged on the first machine shell (31).
3. The apparatus for manufacturing a cup-shaped grinding wheel with an ordered arrangement of abrasive particles according to claim 2, wherein the first transmission mechanism comprises:
a first motor (341), the first motor (341) being disposed on the first housing (31);
a first drive wheel (342), the first motor (341) outputting to the first drive wheel (342);
a first driven wheel (343) connected with the first driving wheel (342) through a belt, the eccentric driven wheel (344) and the first driven wheel (343) are located at both sides of a main side wall of the first housing (31), and the first driven wheel (343) is output to the eccentric driven wheel (344) through a bearing.
4. The device for preparing the cup-shaped grinding wheel with the ordered arrangement of the abrasive particles according to claim 2, wherein a sealing gasket is arranged at the joint of the side cover (39) and the first housing (31), and a sealing ring (8) is arranged at the contact part of the plunger (345) and the material moving barrel (347).
5. The apparatus for manufacturing a cup-shaped grinding wheel with an ordered arrangement of abrasive particles according to claim 1, wherein the table (2) position adjusting mechanism comprises:
the second transmission mechanism comprises a second motor, a second driving wheel (51) and a second driven wheel (52), the second motor outputs to the second driving wheel (51), and the second driving wheel (51) is connected with the second driven wheel (52) through a belt;
one end of the screw rod (53) penetrates through the rack (1) to be connected with the second driven wheel (52), the other end of the screw rod penetrates through the workbench (2) to be rotatably arranged on the rack (1), and the workbench (2) can move along the screw rod (53) in the rotating process of the screw rod (53); and
the limiting rod (54) penetrates through the workbench (2) and is arranged on the rack (1), and the workbench (2) can slide along the limiting rod (54).
6. The apparatus for making cup-shaped grinding wheels with an ordered arrangement of abrasive particles according to claim 5, characterized in that said work-table (2) comprises:
the screw rod (53) and the limiting rod (54) penetrate through the second base (21) and are arranged on the rack (1), and an accommodating groove is formed in the second base (21);
the rotating motor (22) is arranged in the accommodating groove, and the rotating motor (22) outputs to the grinding wheel rotating seat (23); and
the grinding wheel rotating seat (23) is provided with a rotating part (231), the rotating part (231) is arranged in the containing groove, the rotating part (231) is located above the rotating motor (22) and connected with the rotating motor (22) through a rotating shaft, and the grinding wheel base body (6) is arranged in the grinding wheel containing groove of the grinding wheel rotating seat (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022008604.4U CN212471136U (en) | 2020-09-15 | 2020-09-15 | Preparation facilities of cup emery wheel that grit was arranged in order |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022008604.4U CN212471136U (en) | 2020-09-15 | 2020-09-15 | Preparation facilities of cup emery wheel that grit was arranged in order |
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| Publication Number | Publication Date |
|---|---|
| CN212471136U true CN212471136U (en) | 2021-02-05 |
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|---|---|---|---|
| CN202022008604.4U Expired - Fee Related CN212471136U (en) | 2020-09-15 | 2020-09-15 | Preparation facilities of cup emery wheel that grit was arranged in order |
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| CN (1) | CN212471136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993298A (en) * | 2020-09-15 | 2020-11-27 | 南通大学 | Preparation device and preparation method of cup-shaped grinding wheel with orderly-arranged abrasive particles |
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2020
- 2020-09-15 CN CN202022008604.4U patent/CN212471136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111993298A (en) * | 2020-09-15 | 2020-11-27 | 南通大学 | Preparation device and preparation method of cup-shaped grinding wheel with orderly-arranged abrasive particles |
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