CN112536720A - Dust removal cooling method for self-adaptive grinding wheel device of grinding machine - Google Patents
Dust removal cooling method for self-adaptive grinding wheel device of grinding machine Download PDFInfo
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- CN112536720A CN112536720A CN202011279639.XA CN202011279639A CN112536720A CN 112536720 A CN112536720 A CN 112536720A CN 202011279639 A CN202011279639 A CN 202011279639A CN 112536720 A CN112536720 A CN 112536720A
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- 238000000227 grinding Methods 0.000 title claims abstract description 399
- 239000000428 dust Substances 0.000 title claims abstract description 61
- 238000001816 cooling Methods 0.000 title claims abstract description 55
- 238000009423 ventilation Methods 0.000 claims abstract description 62
- 239000000443 aerosol Substances 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000003044 adaptive effect Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000009837 dry grinding Methods 0.000 abstract description 5
- 229910001651 emery Inorganic materials 0.000 description 16
- 231100000331 toxic Toxicity 0.000 description 5
- 230000002588 toxic effect Effects 0.000 description 5
- 239000000941 radioactive substance Substances 0.000 description 4
- 239000003440 toxic substance Substances 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
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Classifications
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
本发明涉及一种磨床自适应砂轮装置的除尘冷却方法，如下：砂轮装置支撑在支座的轴承上，利用传动机构驱动砂轮基体部带动砂轮磨片部旋转；多个砂轮磨片依次进入磨削点后，开启对应的通风门，相应的风通道连通砂轮主风道；砂轮磨片与待加工工件接触，对工件进行磨削加工在风机的冷却空气吸力作用下，沿砂轮磨片切向飞出的磨屑经过砂轮磨片与砂轮基体间隙、风通道、主风道、柔性伸缩风道、气溶胶过滤件至回收装置回收；同时，冷却空气在对流作用下带走砂轮磨片由摩擦产生的热量；砂轮磨片出摩擦点时、关闭通风门；当一个砂轮磨片脱离摩擦点时，下一个砂轮磨片进入磨削点，下一个砂轮磨片进行磨削加工。本发明能够实现干式磨床的自适应除尘冷却。
The invention relates to a dust removal and cooling method for an adaptive grinding wheel device of a grinding machine. The method is as follows: the grinding wheel device is supported on a bearing of a support, and a transmission mechanism is used to drive the grinding wheel base part to drive the grinding wheel grinding part to rotate; After clicking, open the corresponding ventilation door, and the corresponding air channel is connected to the main air channel of the grinding wheel; the grinding wheel grinding piece is in contact with the workpiece to be processed, and the workpiece is ground under the action of the cooling air suction of the fan, flying along the grinding wheel grinding piece tangentially. The abrasive debris is recovered by the recovery device through the gap between the grinding wheel and the grinding wheel base, the air channel, the main air channel, the flexible telescopic air channel, and the aerosol filter; at the same time, the cooling air takes away the grinding wheel under the action of convection. When the grinding wheel is out of the friction point, close the ventilation door; when one grinding wheel leaves the friction point, the next grinding wheel enters the grinding point, and the next grinding wheel is grinding. The present invention can realize self-adaptive dust removal and cooling of the dry grinding machine.
Description
Technical Field
The invention relates to the technical field of grinding machines, in particular to a dust removal cooling method for a self-adaptive grinding wheel device of a grinding machine.
Background
The dry grinding machine generates a large amount of cutting scraps and dust due to no grinding fluid participation in the grinding process, the cutting scraps and the dust form aerosol, if the aerosol is not timely treated, the aerosol can harm the health of people, meanwhile, the grinding process generates a large amount of grinding heat, the grinding heat is accumulated due to no grinding fluid participation, the ablation effect is caused on a grinding wheel and a workpiece, and the grinding quality of the workpiece and the service life of the grinding wheel are influenced. Adopt external removal dust collector at present, utilize the dust excluding hood to collect the abrasive dust in the emery wheel outside, utilize cooling air to cool off grinding region simultaneously, can reach the refrigerated purpose of grinding to most abrasive dust has been collected.
The above-mentioned measures for removing dust and cooling, when the material to be processed is toxic or radioactive, have the following problems: firstly, a gap exists between the dust removal cover of the grinding machine and the grinding wheel, so that partial abrasive dust close to the grinding wheel overflows, the amount of the abrasive dust close to the grinding wheel is relatively large, and the overflow specific gravity of the abrasive dust is relatively high; secondly, aiming at a machined workpiece with the characteristics of toxicity, radioactivity and the like or a grinding machine which requires service in an unmanned workshop, the dust removal device is difficult to adjust; thirdly, cooling air only acts on the surface of the grinding wheel, and the grinding wheel cannot dissipate heat timely, so that the surface of the grinding wheel is ablated; fourthly, the cooling air injection and the grinding process are crossed, so that the aerosol effect is easy to generate, and the toxic or radioactive substance is harmed and diffused; fifthly, the dust removal device realizes up-and-down movement of the dust hood manually, adaptive dust removal is not realized, and the dust removal effect needs to be improved.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a dust removal cooling method for a self-adaptive grinding wheel device of a grinding machine, which can realize self-adaptive dust removal cooling of a dry grinding machine and mainly aims to solve the problems of poor abrasive dust collection effect, poor grinding heat cooling effect and the like when the dry grinding machine is used for processing toxic or radioactive substances.
In order to achieve the above purpose, the invention provides the following technical scheme:
a dust removal cooling method of a self-adaptive grinding wheel device of a grinding machine is characterized by comprising the following steps:
s1, the grinding wheel device is supported on a bearing of a support through a grinding wheel base body wheel shaft of a grinding wheel base body part, and the grinding wheel base body part is driven by a transmission mechanism to drive a grinding wheel grinding piece part to rotate;
s2, after the plurality of grinding wheel grinding discs of the grinding wheel grinding disc part enter grinding points in sequence, opening vent doors on corresponding air channels, wherein the corresponding air channels are communicated with a grinding wheel main air channel;
s3, self-adaptive cooling and dedusting process:
when the ventilation door is opened, the grinding wheel grinding disc is contacted with a workpiece to be processed to grind the workpiece, the fan at the air channel part is opened, and under the action of cooling air suction of the fan, grinding dust which flies out tangentially along the grinding wheel grinding disc passes through a gap between the grinding wheel grinding disc and the grinding wheel base body, the air channel, the main air channel, the flexible telescopic air channel and the aerosol filtering piece to be recycled, so that dust removal is realized; meanwhile, the cooling air takes away heat generated by friction of the grinding wheel and the grinding disc under the convection effect, so that cooling is realized;
s4, when the grinding wheel is ground to generate a friction point, closing the ventilation door and cutting off the communication between the air channel and the grinding wheel main air channel;
and S5, rotating along with the grinding wheel base body, when one grinding wheel grinding piece is separated from the friction point, the next grinding wheel grinding piece enters the grinding point, the corresponding vent door is opened, and the next grinding wheel grinding piece is ground.
Preferably, the middle part of the grinding wheel abrasive disc in the circumferential direction is connected with the grinding wheel base body through a spring; in step S2, performing rough grinding, wherein when the grinding wheel blade portion rotates, the movable end of the grinding wheel blade rotates outwards under the action of centrifugal force, and when the centrifugal force is balanced with the tensile force of the spring, the grinding wheel blade reaches a balance position and enters a friction point position.
Preferably, in the finish grinding process, a grinding trajectory of the grinding wheel chip is controlled by a grinding wheel chip control section mounted on a grinding workpiece side.
Preferably, the grinding wheel grinding disc control part comprises a guide wheel assembly, a track assembly and a track support member, the guide wheel assembly is connected with the movable end of the grinding wheel grinding disc, the track assembly is a telescopic track and is fixed on the grinding machine moving frame through the track support member;
in step S3, the guide wheel of the guide wheel assembly moves along the inner wall of the track assembly, the shape of the track assembly is adjusted by the track support, and the position of the rotating end of the grinding wheel grinding piece is precisely controlled, so that the grinding wheel grinding piece can finish-grind the workpiece.
Preferably, the ventilation door is a flap valve; the ventilation door switch comprises a ventilation door switch fixed end and a ventilation door switch rotating end, a flap valve core of the ventilation door is fixedly connected with the ventilation door switch rotating end, and the ventilation door switch fixed end is fixed at an upper friction point and an outlet friction point of the grinding machine moving frame;
in step S2, when the grinding wheel abrasive disc enters the position of the friction point, the rotating end of the vent door switch corresponding to the air channel contacts with the fixed end of the vent door switch at the position of the friction point, and the rotating end of the vent door switch drives the vent door to rotate by 90 degrees to open the vent door;
in step S4, at the grinding wheel grinding blade friction point, the ventilation door switch rotating end contacts with the ventilation door switch fixing end at the friction point, the ventilation door switch rotating end drives the ventilation door to rotate 90 degrees, and the ventilation door corresponding to the grinding wheel grinding blade at present is closed.
Preferably, the main air duct is communicated with a plurality of air channels uniformly distributed in the grinding wheel base body, the air channels are radially distributed in the grinding wheel base body along the radial direction, and an air outlet at the tail end of the air channel is arranged on the grinding wheel base body.
Preferably, in step S1, the motor decelerated by the speed reducer drives the grinding wheel base portion to rotate the grinding wheel grinding sheet portion at a high speed.
The invention has the beneficial effects that:
the self-adaptive dust removing and cooling device can realize self-adaptive dust removing and cooling, abrasive dust can be recycled through the air duct part without gaps under the air suction effect of the fan, the grinding wheel device of the grinding wheel abrasive disc control part can adjust the position of the grinding wheel abrasive disc so as to accurately grind a track, the size of the recycling gap (namely the gap between the grinding wheel abrasive disc and the grinding wheel base body) can be adjusted in a self-adaptive mode according to the amount of the abrasive dust, the grinding dust removing effect can be greatly improved, and the dust removing effect. The invention uses the air duct part to apply cooling air to the interior of the grinding wheel and the grinding sheet, thereby realizing the integral cooling effect on the grinding wheel and the grinding sheet and avoiding the ablation of the surface of the grinding wheel. The invention has the same cooling and dust removal functions, and the cooling air has the suction function, so that the aerosol effect and the harmful diffusion of toxic or radioactive substances are avoided through the aerosol filter.
Drawings
FIG. 1 is a schematic structural diagram of an adaptive grinding wheel device of a grinding machine according to the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 2 according to the present invention;
FIG. 4 is a side view of a grinding wheel abrasive disc control part according to the present invention;
fig. 5 is a structural view of an air duct control part in the present invention.
Wherein: 1-support, 1.1-bearing seat, 1.2-bearing, 2-grinding wheel base, 2.1-grinding wheel base wheel shaft, 2.2-grinding wheel base, 3-grinding wheel grinding piece part, 3.1-rotating shaft, 3.2-spring, 3.3-grinding wheel grinding piece, 4-grinding wheel grinding piece control part, 4.1-guide wheel component, 4.1.1-guide wheel, 4.1.2-bearing, 4.1.3-wheel support, 4.2-track component, 4.3 track support, 5-air duct part, 5.1-fan, 5.2-aerosol filter, 5.3-flexible telescopic air duct, 5.4-main air duct, 5.5-air duct, 6-air duct control part, 6.1-ventilation door, 6.2-ventilation switch, 6.2.1-ventilation door switch fixed end, 6.2.2-ventilation door switch rotating end.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present application, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
The terms of orientation such as up, down, left, right, front, and rear in the present specification are established based on the positional relationship shown in the drawings. The corresponding positional relationship may also vary depending on the drawings, and therefore, should not be construed as limiting the scope of protection.
In the present invention, the terms "mounted," "connected," "fixed," and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected or capable of communicating with each other, directly connected, indirectly connected through an intermediate medium, or communicated between two components, or interacting between two components. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The present embodiment describes a dust removal cooling method for a self-adaptive grinding wheel device of a grinding machine, in which the grinding wheel device is installed in an original dust cover, thereby realizing zero clearance recovery, and realizing self-adaptive dust removal cooling of a dry grinding machine, and even when toxic or radioactive substances are processed, the dust removal cooling can be well realized, and the substances are prevented from leaking.
As shown in fig. 1 to 5, the grinding wheel device includes a holder 1, a grinding wheel base portion 2, a grinding wheel chip portion 3, a grinding wheel chip control portion 4, an air duct portion 5, and an air duct control portion 6. The grinding wheel base part 2 is mounted on a grinding machine moving frame (not shown) in a dust cover through a support 1, the grinding wheel and abrasive disc part 3 is mounted along the circumferential direction of the grinding wheel base part 2 and rotates together with the grinding wheel base part 2, a grinding track is controlled by a grinding wheel and abrasive disc control part 4, abrasive dust is collected through an air duct part 5 and is cooled by dust removal, and the air duct control part 6 is used for controlling the opening and closing of the air duct part 5.
As shown in fig. 1, the support 1 is composed of bearing seats 1.1 and bearings 1.2, the two bearing seats 1.1 are symmetrically fixed on the moving frame of the grinding machine, the bearings 1.2 are mounted on the bearing seats 1.1, the left and right ends of the grinding wheel base body 2 are arranged on the bearing seats 1.1 through the bearings 1.2 and move along with the moving frame, so that the integral feed grinding of the grinding wheel device is realized, and the rotation of the grinding wheel base body 2 and the dynamic and static separation of the moving frame are also realized.
As shown in fig. 1, the grinding wheel base portion 2 is composed of a grinding wheel base wheel shaft 2.1 and a grinding wheel base 2.2, the grinding wheel base 2.2 is a cylindrical structure with a through hole in the center, the grinding wheel base wheel shaft 2.1 and the grinding wheel base 2.2 are coaxially arranged, the grinding wheel base 2.2 is fixed on a bearing 1.2 of the support 1 through the grinding wheel base wheel shaft 2.1, and the grinding wheel base wheel shaft 2.1 is matched with the bearing 1.2 to realize relative rotation. The grinding wheel base 2.2 and the grinding wheel base wheel shaft 2.1 can be integrally formed and manufactured, the coaxial grinding wheel base wheel shaft 2.1 is arranged at the two ends of the grinding wheel base 2.2, and compared with the split manufacturing (the grinding wheel base wheel shaft 2.1 penetrates through the two ends of the grinding wheel base 2.2 from the center of the grinding wheel base 2.2), the grinding precision can be enhanced while the number of parts is reduced.
As shown in fig. 1 and fig. 2, the grinding wheel and abrasive sheet portion 3 is circumferentially installed on the grinding wheel base body 2.2 along the grinding wheel base body 2.2, including a rotating shaft 3.1, a spring 3.2, a grinding wheel and abrasive sheet 3.3, fixed ends of a plurality of grinding wheel and abrasive sheets 3.3 are respectively connected with the grinding wheel base body 2.2 along the circumferential direction of the grinding wheel base body 2.2 through the rotating shaft 3.1 in sequence, the grinding wheel and abrasive sheet 3.3 can freely rotate around the rotating shaft 3.1, the circumferential direction middle part of the grinding wheel and abrasive sheet 3.3 is connected with the grinding wheel base body 2.2 through the spring 3.2, and static close connection of the grinding wheel and abrasive sheet.
As shown in fig. 1, 3 and 4, the grinding wheel/chip control section 4 is located on the grinding workpiece side and is composed of a guide wheel assembly 4.1, a rail assembly 4.2 and a rail support 4.3. The guide wheel assembly 4.1 consists of a guide wheel 4.1.1, a bearing 4.1.2 and a wheel support 4.1.3, the guide wheel 4.1.1 is fixed on the wheel support 4.1.3 through the bearing 4.1.2, and the wheel support 4.1.3 is connected with the movable end of the grinding wheel grinding piece 3.3 through a bolt. The track assembly 4.2 is a telescopic track and is fixed on the grinding machine moving frame by a track support 4.3. The guide wheel 4.1.1 is in contact with the track component 4.2, so that the track component 4.2 can support the guide wheel 4.1.1. The track supporting piece 4.3 is a hydraulic cylinder system, the track radius of the track assembly 4.2 can be changed through the extension and contraction of the track supporting piece 4.3, so that the grinding wheel and the grinding disc 3.3 are more suitable for grinding workpieces, and the continuity of the track at different positions is realized. In order to ensure that the track radius of the track assembly 4.2 is integrally consistent, a plurality of track supporting pieces 4.3 can be uniformly distributed at intervals along the track assembly 4.2, a plurality of track supporting pieces 4.3 can also be arranged in central symmetry of the track assembly 4.2, and the radius of the track assembly 4.2 can be synchronously adjusted through the plurality of track supporting pieces 4.3, so that the grinding precision and efficiency of the grinding wheel can be further ensured while the track radius is ensured to be consistent.
As shown in fig. 1 and 2, the air duct portion 5 is composed of a fan 5.1, an aerosol filter member 5.2, a flexible telescopic air duct 5.3, a main air duct 5.4, and an air passage 5.5, the fan 5.1 is connected with the aerosol filter member 5.2, the aerosol filter member 5.2 is connected with the main air duct 5.4 through the flexible telescopic air duct 5.3, the main air duct 5.4 is disposed in the wheel axle 2.1 of the grinding wheel base, the main air duct 5.4 is communicated with a plurality of air passages 5.5 uniformly distributed in the grinding wheel base 2.2, the plurality of air passages 5.5 are radially distributed in the grinding wheel base 2.2 in the radial direction, and an air outlet at a terminal end thereof is disposed on the grinding wheel base 2.2 at a position 1/2 in the circumferential direction of the grinding wheel grinding. The flexible telescopic air duct 5.3 can adjust the length of the air duct and can adopt corrugated pipes and the like.
As shown in fig. 2 and 5, the air duct control unit 6 includes a ventilation door 6.1 and a ventilation door switch 6.2, and the ventilation doors 6.1 are installed on the air duct 5.5 in a one-to-one correspondence manner to open and close the air duct 5.5. The ventilation door 6.1 in this embodiment is a flap valve. The ventilation door switch 6.2 comprises ventilation door switch stiff end 6.2.1 and ventilation door switch rotation end 6.2.2, ventilation door 6.1's flap valve case and ventilation door switch rotation end 6.2.2 fixed connection, and rotate along with emery wheel base part 2 together, the flap valve rotates 90 degrees along with ventilation door switch rotation end 6.2.2, can realize the switch of wind passageway 5.5 and alternate, ventilation door switch stiff end 6.2.1 is fixed and needs the position department of adjusting ventilation door 6.1 on-off state on the grinding machine moving frame, for advancing the friction point position and going out the friction point position in this embodiment, different work piece friction point positions, adjustable ventilation door switch stiff end 6.2.1's mounted position. The ventilating door switch rotating end 6.2.2 rotates along with the grinding wheel base body part 2, and 90-degree rotation is realized after the ventilating door switch rotating end is in contact with the ventilating door switch fixing end 6.2.1, so that the ventilating door 6.1 is switched alternately.
When the grinding machine is used for grinding, the grinding wheel device is supported on the support 1 through the grinding wheel base body part 2, the grinding wheel base body part 2 is driven by the motor to rotate at a high speed, the movable end of the grinding wheel grinding piece part 3 on the grinding wheel base body part 2 rotates outwards under the action of centrifugal force, when the centrifugal force is balanced with the tensile force of the spring 3.2, the grinding wheel grinding piece 3.3 reaches a balance position, and the grinding wheel grinding piece 3.3 is in contact with a workpiece to be machined to grind the workpiece. Meanwhile, a certain gap exists between the grinding wheel abrasive disc 3.3 and the grinding wheel base body part 2, the gap is communicated with the air channel part 5, and the ventilation door 6.1 is in a state of opening the air channel 5.5. Under the action of the suction force of the fan 5.1, grinding dust generated by grinding and flying out along the tangential direction is sucked into the air duct portion 5 through the air channel 5.5 and is discharged from the air duct portion 5. The clearance between the grinding wheel abrasive disc 3.3 and the grinding wheel base part 2 is in direct proportion to the rotating speed of the grinding wheel, the quantity of abrasive dust is also in direct proportion to the rotating speed of the grinding wheel, and the flight angle is also in a positive relation to the rotating speed of the grinding wheel, so that the abrasive dust can be recovered in a self-adaptive mode. And through the operation of breathing in of fan 5.1, the air gets into inside grinding wheel base member 2.2 from the outside, and convection current heat transfer when inside through grinding wheel abrasive disc 3.3 plays good cooling effect to the emery wheel, avoids grinding wheel abrasive disc 3.3 to ablate. And the air after cooling emery wheel abrasive disc 3.3 is inhaled aerosol and is filtered 5.2, has avoided cooling air to produce aerosol pollution, and the grinding heat is in direct proportion relation with emery wheel rotation speed, and along with the rotational speed improves, the clearance between emery wheel abrasive disc 3.3 and emery wheel base part 2 crescent, and the windage will reduce, can self-adaptation control emery wheel abrasive disc 3.3's cooling effect. The grinding wheel and grinding disc 3.3 has certain uncertainty when the centrifugal force and the pulling force of the spring 3.2 act, so that the grinding wheel and grinding disc is suitable for rough grinding.
This embodiment realizes the fine manipulation through the control of emery wheel abrasive disc control part 4 to emery wheel abrasive disc 3.3 position, and track subassembly 4.2 and leading wheel subassembly 4.1 combined action control emery wheel abrasive disc 3.3 movable end's position together to the rotation grinding position of accurate control emery wheel abrasive disc 3.3 realizes the fine manipulation. Meanwhile, under the action of the rail supporting piece 4.3, the rail component 4.2 can adjust the position of the rail component 4.2 relative to the workpiece, and the grinding precision is accurately controlled.
In the embodiment, the position of the grinding wheel abrasive disc 3.3 is controlled only by aiming at a grinding point, when the grinding wheel abrasive disc 3.3 is separated from a workpiece, the track component 4.2 is separated from the guide wheel component 4.1, and the self-adaptive dust removal and cooling effects of the grinding wheel abrasive disc 3.3 and the grinding wheel base body part 2 under the action of centrifugal force are ensured.
When the grinding wheel abrasive disc 3.3 is opposite to the workpiece, the ventilation door 6.1 of the corresponding air channel 5.5 is closed under the driving of the ventilation door switch 6.2, and the dust removal and cooling of the grinding wheel abrasive disc 3.3 in contact with the workpiece are guaranteed to the maximum extent.
The working principle of the ventilation door switch 6.2 in the embodiment is as follows: the ventilating door switch rotating end 6.2.2 is in contact with the ventilating door switch fixing end 6.2.1 at the position where the opening and closing state of the ventilating door 6.1 needs to be adjusted under the rotating action of the grinding wheel, the ventilating door switch rotating end 6.2.2 is contacted at each time to rotate 90 degrees, so that the alternating state of opening and closing of the air channel 5.5 is realized, the opening is realized before the air channel enters a grinding point, and the closing is realized after the air channel is far away from the grinding point.
Specifically, during grinding operation, the dust removal cooling method of the self-adaptive grinding wheel device of the grinding machine comprises the following steps:
s1, driving the grinding wheel grinding piece part 3 to rotate by using the transmission mechanism;
the grinding wheel device is supported on a bearing 1.2 of a support 1 through a grinding wheel base body part 2, the grinding wheel base body part 2 is driven to rotate through a transmission mechanism, and in the embodiment, the grinding wheel base body part 2 is driven by a motor which is decelerated through a speed reducer (the rotating speed of power directly output by the motor is large, the torque is small, and the speed reducer plays a role in reducing the speed and increasing the torque) to drive a grinding wheel grinding piece part 3 to rotate at a high speed;
s2, opening a ventilation door 6.1 after entering a grinding point;
under the action of centrifugal force, the movable ends of the grinding wheel grinding sheet parts 3 rotate outwards, when the centrifugal force is balanced with the tensile force of the spring 3.2, the grinding wheel grinding sheets 3.3 reach a balance position, and the grinding wheel grinding sheets 3.3 sequentially enter the position of a friction point; at the moment, a ventilating door switch rotating end 6.2.2 corresponding to the ventilating door 6.1 on the air channel 5.5 is in contact with a ventilating door switch fixing end 6.2.1 arranged on a grinding machine moving frame at a friction inlet point, the ventilating door switch rotating end 6.2.2 drives the ventilating door 6.1 to rotate by 90 degrees to open the ventilating door 6.1, and the corresponding air channel 5.5 is communicated with a grinding wheel main air channel 5.4;
the swinging amplitude of the grinding wheel abrasive disc 3.3 around the rotating shaft 3.1 under the action of the same centrifugal force can be controlled by adjusting the rigidity of the spring 3.2, and the larger the swinging amplitude is, the larger the gap between the grinding wheel abrasive disc 3.3 and the grinding wheel base body 2.2 is, and the smaller the wind resistance is, so that the proper dust removal and cooling effects are achieved;
s3, self-adaptive cooling and dedusting;
when the ventilation door 6.1 is opened, the grinding wheel abrasive disc 3.3 is in contact with a workpiece to be processed to grind the workpiece, the fan 5.1 is simultaneously opened, and abrasive dust which flies out tangentially along the grinding wheel abrasive disc 3.3 passes through a gap between the grinding wheel abrasive disc 3.3 and the grinding wheel base body 2.2, the air channel 5.5, the main air channel 5.4, the flexible telescopic air channel 5.3 and the aerosol filter piece 5.2 to be recovered by a recovery device under the suction force of cooling air of the fan 5.1, so that dust removal is realized; the aerosol filter element 5.2 can prevent the cooling air from generating aerosol pollution; meanwhile, heat generated by friction of the grinding wheel and grinding disc 3.3 can be taken away under the convection action of cooling air, so that the surface temperature of the grinding wheel and grinding disc 3.3 is reduced, the workpiece and the grinding wheel and grinding disc 3.3 are prevented from being ablated due to grinding heat accumulation, and cooling is realized; grinding heat, grinding quantity and emery wheel rotation speed are direct ratio, and along with the rotational speed improvement, the clearance between emery wheel abrasive disc 3.3 and the emery wheel base member 2.2 increases gradually, and the windage will reduce, can be in the coarse grinding processing of work piece, and the dust removal and the cooling of adaptive control emery wheel abrasive disc 3.3.
When the whole grinding wheel device makes feeding motion along with the moving frame, the grinding wheel base body 2.2 rotates, the rotating end of the grinding wheel abrasive disc 3.3 swings outwards under the action of centrifugal force and the tensile force of the spring 3.2, the guide wheel 4.1.1 moves along the inner wall of the track assembly 4.2, the shape of the telescopic track assembly 4.2 is adjusted through the track support member 4.3, the position of the rotating end of the grinding wheel abrasive disc 3.3 can be accurately controlled, the grinding processing of the grinding wheel abrasive disc 3.3 on a workpiece is realized, and good self-adaptive dust removal cooling can also be realized; in the processing process, the opening and closing of the ventilation door 6.1 and the cooling and dust removing principle are the same as those of the rough grinding processing process;
compared with the rough grinding, the accurate grinding reduces the uncertainty of the movement of the grinding wheel abrasive disc 3.3, and adjusts the gap between the grinding wheel abrasive disc 3.3 and the grinding wheel base body 2.2 through the shape of the track, when the feeding amount is large, the radius of the track is larger, so that the gap is increased, the wind resistance is reduced, and the dust removal and the cooling are facilitated;
s4, forming a friction point and closing the ventilation door 6.1;
when one grinding wheel grinding piece 3.3 finishes grinding processing and is to be separated from a friction point, the rotating end 6.2.2 of the vent door switch is contacted with a fixed end 6.2.1 of the vent door switch arranged at the friction point on a movable frame of the grinding machine, the rotating end 6.2.2 of the vent door switch drives the vent door 6.1 to rotate 90 degrees, the vent door 6.1 corresponding to the current grinding wheel grinding piece 3.3 is closed, and the communication between an air channel 5.5 and a main air channel 5.4 of the grinding wheel is cut off;
s5, enabling the next grinding wheel and grinding disc 3.3 to enter a grinding point;
when one grinding wheel abrasive disc 3.3 is separated from the friction point along with the rotation of the grinding wheel base body 2.2, the next grinding wheel abrasive disc 3.3 enters the friction point, the corresponding ventilating door 6.1 is opened, and the grinding wheel abrasive disc 3.3 is subjected to grinding processing; thus, the plurality of grinding wheel chips 3.3 circularly enter the friction point along with the rotation of the grinding wheel base body 2.2, and the grinding processing is completed together.
While the principles of the invention have been described in detail in connection with the preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing embodiments are merely illustrative of exemplary implementations of the invention and are not limiting of the scope of the invention. The details of the embodiments are not to be interpreted as limiting the scope of the invention, and any obvious changes, such as equivalent alterations, simple substitutions and the like, based on the technical solution of the invention, can be interpreted without departing from the spirit and scope of the invention.
Claims (7)
1. A dust removal cooling method of a self-adaptive grinding wheel device of a grinding machine is characterized by comprising the following steps:
s1, the grinding wheel device is supported on a bearing (1.2) of a support (1) through a grinding wheel base body wheel shaft (2.1) of a grinding wheel base body part (2), and the grinding wheel base body part (2) is driven by a transmission mechanism to drive a grinding wheel grinding piece part (3) to rotate;
s2, after the plurality of grinding wheel grinding discs (3.3) of the grinding wheel grinding disc part (3) sequentially enter a grinding point, opening a ventilation door (6.1) on a corresponding air channel (5.5), and communicating the corresponding air channel (5.5) with a grinding wheel main air duct (5.4);
s3, self-adaptive cooling and dedusting process:
when the ventilation door (6.1) is opened, the grinding wheel grinding disc (3.3) is in contact with a workpiece to be machined to grind the workpiece, meanwhile, the fan (5.1) of the air channel part (5) is opened, and under the action of cooling air suction of the fan (5.1), grinding dust which flies out tangentially along the grinding wheel grinding disc (3.3) passes through a gap between the grinding wheel grinding disc (3.3) and the grinding wheel base body (2.2), the air channel (5.5), the main air channel (5.4), the flexible telescopic air channel (5.3) and the aerosol filter piece (5.2) to be recovered by a recovery device, so that dust removal is realized; meanwhile, the cooling air takes away heat generated by friction of the grinding wheel abrasive disc (3.3) under the convection effect, so that cooling is realized;
s4, when the grinding wheel grinding disc (3.3) generates a friction point, closing the ventilation door (6.1), and cutting off the communication between the air channel (5.5) and the grinding wheel main air channel (5.4);
s5, rotating along with the grinding wheel base body (2.2), when one grinding wheel grinding piece (3.3) is separated from a friction point, the next grinding wheel grinding piece (3.3) enters a grinding point, the ventilation door (6.1) corresponding to the next grinding wheel grinding piece is opened, and the next grinding wheel grinding piece (3.3) is ground.
2. The dust removal cooling method for an adaptive grinding wheel unit of a grinding machine according to claim 1, characterized in that the circumferential direction middle portion of the grinding wheel chip 3.3 is connected to the grinding wheel base body (2.2) through a spring (3.2); in step S2, performing rough grinding, wherein when the grinding wheel grinding piece portion (3) rotates, the movable end of the grinding wheel grinding piece (3.3) rotates outwards under the action of centrifugal force of the grinding wheel grinding piece portion (3), and when the centrifugal force is balanced with the tensile force of the spring (3.2), the grinding wheel grinding piece (3.3) reaches a balance position, and the grinding wheel grinding piece (3.3) enters a friction point position.
3. The method for removing dust and cooling a self-adaptive grinding wheel unit of a grinding machine as claimed in claim 2, characterized in that in finish grinding, the grinding locus of the grinding wheel chips (3.3) is controlled by a grinding wheel chip control section (4) mounted on the grinding workpiece side.
4. The dust removal and cooling method for the adaptive grinding wheel device of the grinding machine is characterized in that the grinding wheel and grinding sheet control part (4) comprises a guide wheel assembly (4.1), a track assembly (4.2) and a track support part (4.3), wherein the guide wheel assembly (4.1) is connected with the movable end of the grinding wheel and grinding sheet (3.3), the track assembly (4.2) is a telescopic track and is fixed on the movable frame of the grinding machine through the track support part (4.3);
in step S3, the guide wheel (4.1.1) of the guide wheel assembly (4.1) moves along the inner wall of the track assembly (4.2), the shape of the track assembly (4.2) is adjusted through the track support (4.3), the position of the rotating end of the grinding wheel grinding sheet (3.3) is accurately controlled, and the fine grinding processing of the workpiece by the grinding wheel grinding sheet (3.3) is realized.
5. The method for dedusting and cooling the adaptive grinding wheel device of the grinding machine as claimed in claim 1, characterized in that the ventilation door (6.1) is a flap valve; the ventilation door switch (6.2) comprises a ventilation door switch fixed end (6.2.1) and a ventilation door switch rotating end (6.2.2), a valve core of a flap valve of the ventilation door (6.1) is fixedly connected with the ventilation door switch rotating end (6.2.2), and the ventilation door switch fixed end (6.2.1) is fixed at an upper friction point and an outlet friction point of the grinding machine moving frame;
in step S2, when the grinding wheel grinding piece (3.3) enters the friction point position, the ventilation door switch rotating end (6.2.2) corresponding to the air channel (5.5) contacts with the ventilation door switch fixing end (6.2.1) at the friction point, and the ventilation door switch rotating end (6.2.2) drives the ventilation door (6.1) to rotate 90 degrees to open the ventilation door (6.1);
in step S4, at the friction point of the grinding wheel grinding piece (3.3), the ventilation door switch rotating end (6.2.2) contacts with the ventilation door switch fixing end (6.2.1) at the friction point, the ventilation door switch rotating end (6.2.2) drives the ventilation door (6.1) to rotate 90 degrees, and the ventilation door (6.1) corresponding to the grinding wheel grinding piece (3.3) at present is closed.
6. The dust removal cooling method for the self-adaptive grinding wheel device of the grinding machine as claimed in claim 1, characterized in that the main air duct (5.4) is communicated with a plurality of air channels (5.5) uniformly distributed in the grinding wheel base body (2.2), the plurality of air channels (5.5) are radially distributed in the grinding wheel base body (2.2) along the radial direction, and the air outlet at the tail end is arranged on the grinding wheel base body (2.2).
7. The method of claim 1, wherein in step S1, the motor that is decelerated by a speed reducer drives the grinding wheel base portion (2) to rotate the grinding wheel portion (3) at a high speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279639.XA CN112536720A (en) | 2020-11-16 | 2020-11-16 | Dust removal cooling method for self-adaptive grinding wheel device of grinding machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011279639.XA CN112536720A (en) | 2020-11-16 | 2020-11-16 | Dust removal cooling method for self-adaptive grinding wheel device of grinding machine |
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| CN112536720A true CN112536720A (en) | 2021-03-23 |
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| CN202011279639.XA Withdrawn CN112536720A (en) | 2020-11-16 | 2020-11-16 | Dust removal cooling method for self-adaptive grinding wheel device of grinding machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117124238A (en) * | 2023-10-20 | 2023-11-28 | 歌玛磨具南通有限公司 | Self-adaptive grinding wheel device of grinding machine |
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| US4850158A (en) * | 1987-10-09 | 1989-07-25 | Schaffner William M | Method of making buffing wheel |
| EP2145733A1 (en) * | 2008-07-15 | 2010-01-20 | Guido Valentini | Pad for machining surfaces with curved aspiration channels |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117124238A (en) * | 2023-10-20 | 2023-11-28 | 歌玛磨具南通有限公司 | Self-adaptive grinding wheel device of grinding machine |
| CN117124238B (en) * | 2023-10-20 | 2024-05-17 | 歌玛磨具南通有限公司 | Self-adaptive grinding wheel device of grinding machine |
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