CN109551363B - Internal cooling grinding wheel - Google Patents
Internal cooling grinding wheel Download PDFInfo
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- CN109551363B CN109551363B CN201811541999.5A CN201811541999A CN109551363B CN 109551363 B CN109551363 B CN 109551363B CN 201811541999 A CN201811541999 A CN 201811541999A CN 109551363 B CN109551363 B CN 109551363B
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- grinding wheel
- cooling liquid
- guide pipe
- main body
- liquid guide
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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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
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/10—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
An internally cooled grinding wheel includes a wheel body, a grinding portion; the grinding wheel main body is opened downwards; the upper end of the grinding wheel main body is connected with a tool shank of a machine tool; the grinding part is arranged at the bottom of the grinding wheel main body; the grinding wheel also comprises a cooling liquid guide pipe; the cooling liquid guide pipe is arranged in the inner cavity of the grinding wheel main body; the water inlet end of the cooling liquid guide pipe penetrates through the top of the inner cavity of the grinding wheel main body and is communicated with the cooling liquid supply part; the water outlet end of the cooling liquid guide pipe is fixedly arranged on the inner edge of the lower end of the grinding wheel main body. According to the invention, the independent cooling liquid guide pipe is arranged, the cooling liquid is introduced from the top of the grinding wheel main body and is guided to the outer edge of the lower end of the grinding wheel main body, and the cooling liquid cools, lubricates and flushes a grinding area while the grinding part is grinding. The inner cavity of the grinding wheel main body is independently provided with the cooling liquid guide pipe, so that the technical threshold is reduced, and the production process is simple. The inner-cooling grinding wheel is easier to manufacture and has low production cost.
Description
Technical Field
The invention relates to a grinding wheel, in particular to an internal cooling grinding wheel, and belongs to the field of grinding processing.
Background
In machining, grinding is one of the widely used material removal methods, and belongs to finish machining.
In the grinding process, severe plastic deformation and friction are generated, a large amount of grinding heat is generated in a grinding area between the grinding wheel and the workpiece, and if the heat cannot be dissipated in time, poor phenomena such as burn, cracks and the like are generated on the surface of the workpiece, so that the processing quality of the workpiece is seriously influenced. The cooling is carried out by adopting a mode of pouring cooling liquid outside the grinding wheel by arranging a nozzle in the prior art, but because the grinding wheel forms an airflow layer with certain thickness around the grinding wheel in the running process, the external cooling liquid is prevented from entering a grinding area, and therefore, a machined workpiece cannot be effectively cooled.
Internal cooling grinding is used as an efficient grinding and cooling mode, and domestic and foreign scholars conduct a great deal of research on internal cooling grinding. Compared with an external pouring type cooling method, the internal cooling grinding method has the characteristic that cooling liquid is directly sprayed to a grinding area from the interior of the grinding wheel through the cooling liquid flow channel formed in the body, and the influence of an air flow layer generated by rotation around the grinding wheel can be effectively avoided, so that the grinding temperature can be obviously reduced, and the heat damage to the surface of a workpiece can be prevented or reduced. Meanwhile, the coolant of the grinding surface is gasified under the condition of high temperature of the grinding surface, and a gas barrier heat insulation film, also called film boiling, is formed between the grinding surface and the coolant to prevent the grinding surface from radiating heat to the liquid surface, so that the surface of the workpiece is damaged.
The internal cooling grinding wheel adopted by previous researches is generally to process grinding fluid internal flow channels with various shapes on a grinding wheel main body, but according to the scheme, the processing technology of the internal flow channels is complex, the processing cost is high, and the integral production cost of the grinding wheel is greatly improved.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention is directed to a method for cooling, lubricating and flushing a grinding area while grinding a grinding portion by providing a separate coolant guide tube for introducing coolant from the top of a grinding wheel body and guiding the coolant to the outer edge of the lower end of the grinding wheel body. The cooling liquid guide pipe is independently arranged in the inner cavity of the grinding wheel main body, an inner runner does not need to be processed on the grinding wheel main body, the technical threshold is reduced, and the production process is simple. The inner-cooling grinding wheel is easier to manufacture and has low production cost. The invention provides an internal cooling grinding wheel, which comprises a grinding wheel main body and a grinding part; the grinding wheel main body is opened downwards; the upper end of the grinding wheel main body is connected with a tool shank of a machine tool; the grinding part is arranged at the bottom of the grinding wheel main body; the grinding wheel also comprises a cooling liquid guide pipe; the cooling liquid guide pipe is arranged in the inner cavity of the grinding wheel main body; the water inlet end of the cooling liquid guide pipe penetrates through the top of the inner cavity of the grinding wheel main body and is communicated with the cooling liquid supply part; the water outlet end of the cooling liquid guide pipe is fixedly arranged on the inner edge of the lower end of the grinding wheel main body.
According to an embodiment of the present invention, there is provided an internally cooled grinding wheel:
an internally cooled grinding wheel includes a wheel body, a grinding portion; the grinding wheel main body is opened downwards; the upper end of the grinding wheel main body is connected with a tool shank of a machine tool; the grinding part is arranged at the bottom of the grinding wheel main body; the grinding wheel also comprises a cooling liquid guide pipe; the cooling liquid guide pipe is arranged in the inner cavity of the grinding wheel main body; the water inlet end of the cooling liquid guide pipe penetrates through the top of the inner cavity of the grinding wheel main body and is communicated with the cooling liquid supply part; the water outlet end of the cooling liquid guide pipe is fixedly arranged on the inner edge of the lower end of the grinding wheel main body.
Preferably, the cooling liquid guide pipe is an elastic hose; preferably a rubber hose.
Preferably, the grinding wheel comprises N cooling liquid guide pipes; n is 1 to 40, preferably N is 2 to 20; more preferably N is 4 to 10; preferably, the water outlet ends of the N cooling liquid guide pipes are uniformly arranged along the circumferential direction in the grinding wheel main body.
Preferably, the grinding wheel further comprises: a deformation limiting device; deformation stop device includes: a limiting ring and an adjusting rod; the limiting ring is arranged in the inner cavity of the grinding wheel main body and is arranged between the cooling liquid guide pipe and the inner wall of the grinding wheel main body; one end of the adjusting rod is hinged with the limiting ring, and the other end of the adjusting rod penetrates through the top of the grinding wheel main body and extends out of the grinding wheel main body.
Preferably, the deformation limiting device comprises M adjusting rods, and the M adjusting rods are uniformly hinged around the limiting ring; m is 1 to 30; preferably M is 2 to 20; more preferably, M is 3 to 10.
Preferably, the water outlet end of the cooling liquid guide pipe is arranged at the lower end inner edge of the grinding wheel main body and specifically comprises the following steps: this emery wheel still includes: the end fixing device is arranged on the inner side of the inner edge of the lower end of the grinding wheel main body; the end fixing device includes: a guide tube positioning hole; the coolant guide pipe includes: a positioning sleeve; the positioning sleeve is arranged at the water outlet end of the cooling liquid guide pipe; the cooling liquid guide pipe is connected with the guide pipe positioning hole through the positioning sleeve.
Preferably, the end fixing device is of an annular structure, the guide pipe positioning holes are annularly arranged along the end fixing device, the number of the guide pipe positioning holes is larger than or equal to that of the cooling liquid guide pipes, and an included angle α between the central axis direction of the guide pipe positioning holes and the grinding surface of the grinding part is 10-90 degrees, preferably 30-85 degrees, and more preferably 45-80 degrees.
Preferably, the adjusting rod is connected with the top of the grinding wheel main body through a threaded structure.
Preferably, the grinding wheel further comprises: a pipeline fixing device; the pipe fixing device includes: a connector; a through hole is arranged on the axis of the connector, and an external thread end is arranged outside the connector; the external thread end of the connector is connected with the top of the grinding wheel main body, and the cooling liquid guide pipe penetrates through the through hole of the connector and is fixed through the connector.
Preferably, the pipe fixing device further comprises: a locking band; the water inlet end of the coolant guiding pipe penetrates through the through hole of the connector, and the coolant guiding pipe is fixed on the connector by the locking hoop.
Preferably, the locking band comprises: a locking sheet and a locking structure; two ends of the locking sheet are provided with locking holes; the locking piece is sleeved at the position where the cooling liquid guide pipe is fixed on the connector; the locking holes at the two ends of the locking sheet are aligned; the locking structure fastens the locking sheet through the locking hole.
A method of using the internally cooled grinding wheel of any one of claims 1 to 9, the method comprising the steps of:
1) the machine tool drives the grinding wheel main body to rotate through the tool handle, cooling liquid flows to an inner cavity of the grinding wheel main body along the cooling liquid guide pipe, and the cooling liquid plays a cooling role on a grinding surface;
2) the cooling liquid guide pipe is an elastic hose and deforms under the action of centrifugal force, and the deformation of the cooling liquid guide pipe changes the flow velocity of the cooling liquid; the method specifically comprises the following steps: the faster the rotating speed of the grinding wheel main body is, the larger the generated centrifugal force is, the larger the deformation amplitude of the cooling liquid guide pipe is, the larger the flow speed of the cooling liquid in the cooling liquid guide pipe is, and more cooling liquid is sprayed on the grinding surface; on the contrary, the slower the rotating speed of the grinding wheel main body is, the smaller the generated centrifugal force is, the smaller the deformation amplitude of the cooling liquid guide pipe is, the smaller the flow velocity of the cooling liquid in the cooling liquid guide pipe is, and less cooling liquid is sprayed on the grinding surface;
preferably, the method also comprises a step 3) of controlling the deformation of the cooling liquid guide pipe through a deformation limiting device; the method specifically comprises the following steps: lifting the adjusting rod to drive the limiting ring to move towards the top of the grinding wheel main body, so that the moving area of the cooling liquid guide pipe is expanded until the cooling liquid guide pipe is completely separated from the limiting ring, and the deformation of the cooling liquid guide pipe is completely self-adaptively adjusted by the rotating speed of the grinding wheel main body; otherwise, the adjusting rod is lowered to drive the limiting ring to be away from the top of the grinding wheel main body and move towards the bottom of the grinding wheel main body, the moving area of the cooling liquid guide pipe is reduced, when the grinding wheel main body rotates, the limiting ring limits the deformation of the cooling liquid guide pipe, and the deformation of the cooling liquid guide pipe is controlled by the rotating speed of the grinding wheel main body and the position of the limiting ring.
In this application, through setting up independent coolant liquid guide tube, introduce the coolant liquid from the top of emery wheel main part to guide the coolant liquid to emery wheel main part lower extreme outer edge, the coolant liquid cools off, lubricates and erodees the grinding region when grinding portion grinds. The inner cavity of the grinding wheel main body is independently provided with the cooling liquid guide pipe, the technical threshold is low, and the production process is simple. The inner-cooling grinding wheel is easier to manufacture and has low production cost.
In this application, the grinding wheel main part is the downward opening, and the center department at grinding wheel main part top is regional for emery wheel geometry axis and is provided with the mounting hole. The top of the grinding wheel main body is arranged on a tool shank of a machine tool through the mounting hole. The grinding wheel main body is opened downwards to form a cavity with a downward opening. The outer edge of the lower end of the grinding wheel main body, namely the outer edge of the bottom, is provided with a grinding part. One end of the coolant guide pipe is arranged at the top of the inner cavity of the grinding wheel main body and is communicated with the coolant outside the inner cavity. The other end is arranged at the outer edge of the lower end of the grinding wheel main body, namely the outlet of the cooling liquid guide pipe can be arranged in the grinding part, and the outer edge of the lower end can also be arranged at the radial inner side of the grinding part.
In the present application, the coolant guiding tube may be a hard tube or a flexible tube; a hose is a more preferred option.
In the present application, machine tools to which the internally cooled grinding wheel is applied include grinding machines, grinders, and the like having a rotating spindle.
In the actual processing process, the grinding wheel rotates, the cooling liquid is driven by the grinding wheel to be subjected to radial centrifugal force, the shape and the position of an inner flow channel of the traditional internal cooling grinding wheel are fixed, and in the flowing process of the cooling liquid in the inner flow channel, the inner wall of the inner flow channel plays a role in blocking the cooling liquid in the radial direction of the rotation of the grinding wheel. Thereby influencing the accelerated motion of the cooling liquid under the action of centrifugal force in the process of flowing through the inner flow passage, and further influencing the spraying speed of the cooling liquid.
In the present invention, the coolant guiding tube is made of an elastic material. The cooling liquid is introduced through the communication between the cooling liquid guide pipe and the bottom of the grinding wheel. And applying the coolant to the grinding surface. During the process of the coolant flowing through the elastic coolant guide pipe, the coolant always receives the centrifugal force caused by the rotation of the grinding wheel, namely the coolant has the tendency of moving outwards along the radial direction. Because the coolant guide pipe is made of elastic material and two ends of the coolant guide pipe are fixed on the grinding wheel, the coolant guide pipe in the middle can displace outwards under the action of the coolant, namely the coolant guide pipe can deform into an arc-shaped pipeline protruding outwards along the radial direction. At this time, the included angle between the initial cooling liquid guide pipe and the horizontal plane of the rotation of the grinding wheel is reduced (compared with before deformation), and the resistance of the initial cooling liquid guide pipe to the cooling liquid in the radial direction of the rotation is reduced (compared with before deformation). That is, at the initial stage of the coolant entering the coolant guide tube, the acceleration of the coolant within the tube increases (compared to before the deformation), and the coolant reaches a faster velocity in the initial coolant guide tube, and thus is ejected at the coolant guide tube outlet. Therefore, compared with a linear pipeline, the arc-shaped cooling liquid guide pipe protruding outwards is beneficial to improving the spraying speed of the cooling liquid under the condition of the same rotating speed, namely under the condition that the centrifugal force borne by the cooling liquid is certain.
Generally, as the rotation speed of the grinding wheel is increased, the heat generated by friction between the grinding portion and the surface of the workpiece is increased, and more coolant is required. In the internal cooling grinding wheel in the prior art, the shape and the structure of an internal flow channel of the internal cooling grinding wheel cannot be adjusted in a self-adaptive manner according to the rotating speed of the grinding wheel, and other large-flow grinding wheels need to be replaced additionally according to different working condition requirements, namely grinding surfaces with more heat productivity, so as to achieve the purpose of meeting the requirement of temperature reduction.
In the present application, the coolant guide tube is made of an elastic material. The different of emery wheel rotational speed, the centrifugal force that the coolant liquid received is different, and the degree that corresponding coolant liquid guiding tube radian warp also is different, and is different to the accelerated promotion effect of coolant liquid promptly, and emery wheel rotational speed is bigger, and the centrifugal force of coolant liquid is bigger, and the coolant liquid guiding tube radian warp is bigger, and is bigger to the accelerated promotion effect of coolant liquid. Conversely, the smaller the acceleration effect on the cooling liquid. The invention of the application can improve the promotion effect on the coolant spraying speed in a self-adaptive manner according to different rotation speeds of the grinding wheel. The coolant flow of the grinding wheel can be adaptive to meet the processing requirements under different working conditions.
In this application, the emery wheel main part specifically is bowl type structure, and the outer edge of lower extreme is bowl mouth region promptly, and the top of emery wheel main part is bowl bottom promptly.
In this application, the top of the grinding wheel main body is evenly provided with N coolant guiding tubes along the circumferential direction, and the coolant guiding tubes are annularly arranged along the circumferential direction at the bottom of the grinding wheel. If the number of the cooling liquid guide pipes is 6, the included angle formed by the installation positions of two adjacent cooling liquid guide pipes and the center of the grinding wheel main body is 60 degrees; if the number of the cooling liquid guide pipes is 10, the included angle formed by the installation positions of two adjacent cooling liquid guide pipes and the center of the grinding wheel main body is 36 degrees.
In this application, deformation stop device is used for limiting the biggest radian deformation degree of coolant liquid guiding tube. The limiting ring is arranged in the inner cavity of the grinding wheel main body and is parallel to the top of the grinding wheel main body. And the limiting ring is sleeved on the periphery of the cooling liquid guide pipe. In the deformation process of the cooling liquid guide pipe, the protruding part of the arc-shaped cooling liquid guide pipe can abut against the limiting ring, and the limiting ring limits the cooling liquid guide pipe to continue to protrude and deform outwards along the radial direction. The adjusting rod is hinged with the limiting ring, is in threaded connection with the top of the grinding wheel main body and penetrates through the top of the grinding wheel main body along the direction of the machine tool spindle. The adjusting rod can protrude out of the adjusting head of the grinding wheel main body through rotation, so that the adjusting rod moves along the direction of the main shaft of the machine tool, namely moves vertical to the working surface of the grinding wheel. Thereby drive the working face of spacing ring perpendicular emery wheel and reciprocate, the spacing ring is down more, and the limiting effect to coolant liquid guiding tube radian deformation is big more.
In the actual production process, the heat generated by grinding the grinding part and certain workpieces is not high in a high-speed state, and larger cooling liquid flow is not needed; in addition, portions of the workpiece grinding surface are not suitable for bulk coolant cooling.
The invention provided by the application can limit the maximum radian deformation of the cooling liquid guide pipe through the adjustment of the deformation limiting device when the cooling liquid guide pipe faces the situations, so that the elastic cooling liquid guide pipe is limited, and the promotion effect of improving the flow rate of the cooling liquid is realized. Thereby achieving the purpose of processing according with working conditions.
In this application, what adjust the pole and evenly set up on the spacing ring means, adjust the pole on the spacing ring, along the circumferencial direction annular arrangement. If the number of the adjusting rods is 6, the included angle formed by the installation positions of two adjacent adjusting rods and the center of the limiting ring is 60 degrees; if the number of the adjusting rods is 10, the included angle formed by the installation positions of two adjacent adjusting rods and the center of the limiting ring is 36 degrees.
In this application, the exit end of the coolant guide tube is fixed to the lower outer edge of the grinding wheel body by an end fixing device. The cooling liquid guide pipe is clamped and embedded in the guide pipe positioning hole through the positioning sleeve. Under the working state, due to the action of centrifugal force, the cooling liquid guide pipe can generate radian deformation, and the outlet end of the cooling liquid guide pipe has a movement trend of moving towards the cavity. Under the interaction of the end fixing device and the positioning sleeve, the outlet end of the cooling liquid guide pipe cannot contract and move inwards, and the working state is kept at all times.
In this application, the locating hole control coolant liquid direction of spouting of coolant liquid guiding tube, through the tip fixing device who has different angle locating holes of change, the contained angle of adjustable coolant liquid direction of spouting and operation face to when can reducing the coolant liquid and work piece contact according to the operating mode, the influence of velocity loss to the coolant liquid total speed in the perpendicular operation face direction.
In the present application, by replacing the end fixture with a different angle locating hole, it is also possible to adjust the position of the coolant incident on the grinding surface for cooperation with the position of the grinding pad in the grinding section. That is, the grinding portion is provided with the grinding pads intermittently, and the position of the point of incidence of the cooling liquid in the interval is generally adjusted while setting the position of incidence in the interval between the grinding pads.
In the application, the cooling liquid has certain lubricity except for cooling the grinding surface, so that the friction coefficient of useless friction between the grinding part and the surface of the workpiece is reduced, and the generation of heat is reduced.
In this application, the coolant liquid except playing cooling and lubricated effect to the grinding face, the high-speed high-pressure coolant liquid of blowout breaks through the gas barrier because grinding surface film boiling phenomenon forms for the better and grinding surface contact heat transfer of coolant liquid.
In the application, the cooling liquid plays a role in cooling, lubricating and dispersing a gas barrier on a grinding surface, and the high-speed sprayed cooling liquid also washes grinding waste generated by grinding, so that the cleanness of a machined surface is kept constantly, and secondary damage of the grinding surface or damage of a grinding part caused by the residue of the grinding waste is prevented.
In this application, the coolant guide pipe communicates with the top of the grinding wheel main body through a pipe fixing device. The connector is connected with the top of the grinding wheel main body through a threaded structure. The thread structure can improve the sealing performance of the connection head connected with the top of the grinding wheel main body. The one end that the emery wheel main part top was kept away from to the connector is smooth end, and level and smooth port can be laminated with the coolant liquid guiding tube better, improves the leakproofness that connector and coolant liquid guiding tube are connected.
In this application, the locking band is nested in the overlapping portion of the coolant guide tube and the connector. The locking piece surrounds and wraps the overlapping part of the coolant liquid guide pipe and the connecting head. The locking hole of the locking sheet is aligned with the locking hole. The locking structure passes through the locking hole to fasten the locking sheet.
In summary, in the present application, the coolant guiding tube is a detachable structure. In the prior art, if an inner flow passage is blocked, the cleaning is difficult; if the grinding wheel can not be cleaned, a new grinding wheel needs to be replaced again, and the grinding wheel is accurately positioned again, so that the production cost and the production efficiency are greatly influenced in the prior art. The invention provided by the application creates the internal cooling grinding wheel, the cooling liquid guide pipe is of a detachable structure, when the cooling liquid guide pipe is blocked and needs to be replaced, the cooling liquid guide pipe is replaced independently, the whole grinding wheel does not need to be replaced, the grinding wheel does not need to be repositioned, and the time is saved.
In the present application, a method of using the internally cooled grinding wheel is also provided. In the step 1), the grinding fluid has the functions of cooling, lubricating and washing the processed surface.
Compared with the prior art, the invention has the following beneficial effects:
1. in the prior art, the inner runner is processed inside the grinding wheel entity, the processing technology is complex, the processing cost is high, and the overall production cost of the grinding wheel is increased; in the invention, the inner cavity of the grinding wheel main body is independently provided with the cooling liquid guide pipe, so that the technical threshold is reduced, and the production process is simple; compared with the prior art, the internal cooling type grinding wheel is easier to manufacture and has low production cost;
2. in the prior art, the structure and the shape of an inner flow passage are fixed, so that cooling liquid is prevented from accelerating to flow in the inner flow passage, and when the rotating speed of a grinding wheel is higher, the radial blocking effect is higher; in the invention, a cooling liquid guide pipe made of elastic material is adopted; after the speed is increased, the middle part of the cooling liquid guide pipe can be bent outwards to form a radian, so that the influence on the accelerated flow of the cooling liquid in the cooling liquid guide pipe is reduced, and the larger the rotating speed is, the more the increase of the discharge capacity of the cooling liquid can be promoted;
3. in the prior art, the outlet angle of the inner flow channel is already shaped during processing and cannot be adjusted; in the invention, the angle between the outlet end of the cooling liquid guide pipe and the processing plane is controlled while the outlet end of the cooling liquid guide pipe is positioned through the positioning hole of the end fixing device, and the angle between the outlet end of the cooling liquid guide pipe and the processing plane can be adjusted by replacing the end fixing device with positioning holes with different angles, so that the requirements under different working conditions are met;
4. in the prior art, if an inner-cooling grinding wheel with an inner flow channel is blocked, the production can be continued only by integrally replacing the grinding wheel, so that the time is delayed, and the production efficiency is influenced; meanwhile, if the blockage of the inner runner cannot be eliminated, the grinding wheel is basically scrapped, so that the waste of production data is caused; in the invention, the internal cooling grinding wheel adopts a detachable cooling liquid guide pipe, if the cooling liquid guide pipe is blocked, the cooling liquid guide pipe can be replaced independently, the grinding wheel does not need to be replaced in the production process, and the time is saved; the cooling liquid guide pipe is simple in structure and low in cost, and production cost is saved.
Drawings
FIG. 1 is a schematic view of the overall construction of an internally cooled grinding wheel according to the present invention;
FIG. 2 is a schematic view of an end fixture according to the present invention;
FIG. 3 is a schematic structural view of a deformation limiting device according to the present invention;
FIG. 4 is a schematic view of the pipe fixing device according to the present invention;
FIG. 5 is a schematic view of a locking band of the present invention;
FIG. 6 is a bottom view of the arrangement of the cooling fluid guide tubes of the internal cooling grinding wheel according to the present invention;
fig. 7 is a schematic view of the angle α between the central axis of the locating hole and the grinding surface.
Reference numerals: 1: a grinding wheel main body; 2: a grinding section; 3: a coolant guide tube; 301: a positioning sleeve; 4: a deformation limiting device; 401: a limiting ring; 402: adjusting a rod; 5: an end fixing device; 501: a guide tube positioning hole; 6: a pipeline fixing device; 601: a connector; 602: a locking band; 60201: a locking piece; 60202: and (5) a locking structure.
Detailed Description
According to an embodiment of the present invention, there is provided an internally cooled grinding wheel:
an internally cooled grinding wheel comprises a wheel body 1, a grinding part 2; the grinding wheel main body 1 is opened downwards; the upper end of the grinding wheel main body 1 is connected with a tool shank of a machine tool; the grinding part 2 is arranged at the bottom of the grinding wheel main body 1; the grinding wheel also comprises a cooling liquid guide pipe 3; the cooling liquid guide pipe 3 is arranged in the inner cavity of the grinding wheel main body 1; the water inlet end of the coolant guide pipe 3 penetrates through the top of the inner cavity of the grinding wheel main body 1 and is communicated with the coolant supply part; the water outlet end of the cooling liquid guide pipe 3 is fixedly arranged on the inner edge of the lower end of the grinding wheel main body 1.
Preferably, the coolant guide tube 3 is an elastic hose; preferably a rubber hose.
Preferably, the grinding wheel comprises N coolant guiding tubes 3; n is 1 to 40, preferably N is 2 to 20; more preferably, N is 4 to 10.
Preferably, the water outlet ends of the N cooling liquid guide pipes 3 are uniformly arranged along the circumferential direction inside the grinding wheel body 1.
Preferably, the grinding wheel further comprises: a deformation limiting device 4; deformation stop device 4 includes: a limiting ring 401 and an adjusting rod 402; the limiting ring 401 is arranged in the inner cavity of the grinding wheel main body 1 and is arranged between the cooling liquid guide pipe 3 and the inner wall of the grinding wheel main body 1; one end of the adjusting rod 402 is hinged to the limiting ring 401, and the other end of the adjusting rod 402 penetrates through the top of the grinding wheel body 1 and extends out of the grinding wheel body 1.
Preferably, the deformation limiting device 4 comprises M adjusting rods 402, and the M adjusting rods 402 are uniformly hinged around the limiting ring 401; m is 1 to 30; preferably M is 2 to 20; more preferably, M is 3 to 10.
Preferably, the water outlet end of the coolant guide tube 3 is arranged at the inner edge of the lower end of the grinding wheel body 1, and specifically comprises: this emery wheel still includes: the end fixing device 5 is arranged on the inner side of the inner edge of the lower end of the grinding wheel main body 1; the end fixing device 5 includes: guide tube locating holes 501; the coolant introduction pipe 3 includes: a positioning sleeve 301; the positioning sleeve 301 is arranged at the water outlet end of the cooling liquid guide pipe 3; the coolant introduction pipe 3 is connected to the introduction pipe positioning hole 501 via a positioning sleeve 301.
Preferably, the end fixing device 5 is of an annular structure, the guide pipe positioning holes 501 are annularly arranged along the end fixing device 5, the number of the guide pipe positioning holes 501 is greater than or equal to the number of the cooling liquid guide pipes 3, and an included angle α between the central axis direction of the guide pipe positioning holes 501 and the grinding surface of the grinding part is 10-90 degrees, preferably 30-85 degrees, and more preferably 45-80 degrees.
Preferably, the adjustment rod 402 is connected to the top of the grinding wheel body 1 by a screw structure.
Preferably, the grinding wheel further comprises: a pipe fixing device 6; the pipe fixing device 6 includes: a connector 601; a through hole is formed in the axis of the connector 601, and an external thread end is arranged outside the connector; the external thread end of the connector 601 is connected with the top of the grinding wheel main body 1, and the cooling liquid guide pipe 3 passes through the through hole of the connector 601 and is fixed through the connector 601.
Preferably, the pipe fixing device 6 further includes: a locking band 602; the water inlet end of the coolant guide tube 3 passes through the through hole of the connector 601, and the locking hoop 602 fixes the coolant guide tube 3 on the connector 601.
Preferably, the locking band 602 includes: locking plate 60201, locking structure 60202; locking holes are formed in two ends of the locking plate 60201; the locking plate 60201 is sleeved on the coolant guide pipe 3 and fixed on the connector 601; the locking holes at the two ends of the locking plate 60201 are aligned; locking structure 60202 secures locking tab 60201 via the locking hole.
A method of using the internally cooled grinding wheel of any one of claims 1 to 9, the method comprising the steps of:
1) the machine tool drives the grinding wheel main body 1 to rotate through the tool shank, cooling liquid flows to the inner cavity of the grinding wheel main body 1 along the cooling liquid guide pipe 3, and the cooling liquid plays a role in cooling the grinding surface;
2) the cooling liquid guide pipe 3 is an elastic hose because the grinding wheel main body 1 rotates to generate centrifugal force, the cooling liquid guide pipe 3 deforms under the action of the centrifugal force, and the deformation of the cooling liquid guide pipe 3 changes the flow velocity of the cooling liquid; the method specifically comprises the following steps: the faster the rotation speed of the grinding wheel main body 1 is, the larger the generated centrifugal force is, the larger the deformation amplitude of the cooling liquid guide pipe 3 is, the larger the flow velocity of the cooling liquid in the cooling liquid guide pipe 3 is, and more cooling liquid is sprayed on the grinding surface; on the contrary, the slower the rotation speed of the grinding wheel main body 1 is, the smaller the generated centrifugal force is, the smaller the deformation amplitude of the cooling liquid guide pipe 3 is, the smaller the flow velocity of the cooling liquid in the cooling liquid guide pipe 3 is, and less cooling liquid is sprayed on the grinding surface;
preferably, the method also comprises a step 3) of controlling the deformation of the cooling liquid guide pipe 3 through a deformation limiting device 4; the method specifically comprises the following steps: lifting the adjusting rod 402 to drive the limiting ring 401 to move towards the top of the grinding wheel main body 1, so that the moving area of the cooling liquid guide pipe 3 is expanded until the cooling liquid guide pipe 3 is completely separated from the limiting ring 401, and the deformation of the cooling liquid guide pipe 3 is completely self-adaptively adjusted by the rotating speed of the grinding wheel main body 1; on the contrary, the adjusting rod 402 is lowered to drive the limiting ring 401 to be away from the top of the grinding wheel main body 1 and move towards the bottom of the grinding wheel main body 1, so that the moving area of the cooling liquid guide pipe 3 is reduced, when the grinding wheel main body 1 rotates, the limiting ring 401 limits the deformation of the cooling liquid guide pipe 3, and the deformation of the cooling liquid guide pipe 3 is controlled by the rotating speed of the grinding wheel main body 1 and the position of the limiting ring 401.
Preferably, the grinding wheel body 1 is embodied in a bowl-shaped configuration.
Example 1
An internally cooled grinding wheel comprises a wheel body 1, a grinding part 2; the grinding wheel main body 1 is opened downwards; the upper end of the grinding wheel main body 1 is connected with a tool shank of a machine tool; the grinding part 2 is arranged at the bottom of the grinding wheel main body 1; the grinding wheel also comprises a cooling liquid guide pipe 3; the cooling liquid guide pipe 3 is arranged in the inner cavity of the grinding wheel main body 1; the water inlet end of the coolant guide pipe 3 penetrates through the top of the inner cavity of the grinding wheel main body 1 and is communicated with the coolant supply part; the water outlet end of the cooling liquid guide pipe 3 is fixedly arranged on the inner edge of the lower end of the grinding wheel main body 1.
Example 2
Example 1 was repeated except that the coolant introduction tube 3 was an elastic material.
Example 3
Example 2 was repeated except that the coolant guide tube 3 was a rubber hose.
Example 4
Example 2 was repeated except that the grinding wheel body 1 was specifically of a bowl-type configuration.
Example 5
Example 4 was repeated except that the grinding wheel comprised N coolant-conducting tubes 3; n is 12; the water outlet ends of the N cooling liquid guide pipes 3 are uniformly arranged along the circumferential direction in the grinding wheel main body 1.
Example 6
Example 5 was repeated except that the grinding wheel further included: a deformation limiting device 4; deformation stop device 4 includes: a limiting ring 401 and an adjusting rod 402; the limiting ring 401 is arranged in the inner cavity of the grinding wheel main body 1 and is arranged between the cooling liquid guide pipe 3 and the inner wall of the grinding wheel main body 1; one end of the adjusting rod 402 is hinged to the limiting ring 401, and the other end of the adjusting rod 402 penetrates through the top of the grinding wheel body 1 and extends out of the grinding wheel body 1. The deformation limiting device 4 comprises M adjusting rods 402, and the M adjusting rods 402 are uniformly hinged around the limiting ring 401; m is 8.
Example 7
Example 6 is repeated, except that the water outlet end of the coolant guide tube 3 is arranged at the inner edge of the lower end of the grinding wheel body 1. the grinding wheel further comprises an end fixing device 5, the end fixing device 5 is arranged at the inner side of the inner edge of the lower end of the grinding wheel body 1, the end fixing device 5 comprises a guide tube positioning hole 501, the coolant guide tube 3 comprises a positioning sleeve 301, the positioning sleeve 301 is arranged at the water outlet end of the coolant guide tube 3, the coolant guide tube 3 is connected with the guide tube positioning hole 501 through the positioning sleeve 301, the end fixing device 5 is of an annular structure, the guide tube positioning holes 501 are annularly arranged along the end fixing device 5, the number of the guide tube positioning holes 501 is larger than or equal to the number of the coolant guide tubes 3, the included angle α between the central axis direction of the guide tube positioning hole 501 and the grinding surface of the grinding part (2) is 20 degrees, and the.
Example 8
Example 7 was repeated, the grinding wheel further comprising: a pipe fixing device 6; the pipe fixing device 6 includes: a connector 601; a through hole is formed in the axis of the connector 601, and an external thread end is arranged outside the connector; the external thread end of the connector 601 is connected with the top of the grinding wheel main body 1, and the cooling liquid guide pipe 3 passes through the through hole of the connector 601 and is fixed through the connector 601.
Example 9
Repeating embodiment 8, the pipe fixing device 6 further includes: a locking band 602; the water inlet end of the coolant guide tube 3 passes through the through hole of the connector 601, and the locking hoop 602 fixes the coolant guide tube 3 on the connector 601. The locking band 602 includes: locking plate 60201, locking structure 60202; locking holes are formed in two ends of the locking plate 60201; the locking plate 60201 is sleeved on the coolant guide pipe 3 and fixed on the connector 601; the locking holes at the two ends of the locking plate 60201 are aligned; locking structure 60202 secures locking tab 60201 via the locking hole.
Example 10
A method of internally cooling a grinding wheel, the method comprising the steps of:
(1) the machine tool drives the grinding wheel main body 1 to rotate through the tool shank, cooling liquid flows to the inner cavity of the grinding wheel main body 1 along the cooling liquid guide pipe 3, and the cooling liquid plays a role in cooling the grinding surface;
(2) the cooling liquid guide pipe 3 is an elastic hose because the grinding wheel main body 1 rotates to generate centrifugal force, the cooling liquid guide pipe 3 deforms under the action of the centrifugal force, and the deformation of the cooling liquid guide pipe 3 changes the flow velocity of the cooling liquid; the method specifically comprises the following steps: the faster the rotation speed of the grinding wheel main body 1 is, the larger the generated centrifugal force is, the larger the deformation amplitude of the cooling liquid guide pipe 3 is, the larger the flow velocity of the cooling liquid in the cooling liquid guide pipe 3 is, and more cooling liquid is sprayed on the grinding surface; on the contrary, the slower the rotation speed of the grinding wheel main body 1 is, the smaller the generated centrifugal force is, the smaller the deformation amplitude of the cooling liquid guide pipe 3 is, the smaller the flow velocity of the cooling liquid in the cooling liquid guide pipe 3 is, and less cooling liquid is sprayed on the grinding surface;
example 11
The embodiment 10 is repeated, and the method further comprises the step (3) of controlling the deformation of the cooling liquid guide pipe 3 through the deformation limiting device 4; the method specifically comprises the following steps: lifting the adjusting rod 402 to drive the limiting ring 401 to move towards the top of the grinding wheel main body 1, so that the moving area of the cooling liquid guide pipe 3 is expanded until the cooling liquid guide pipe 3 is completely separated from the limiting ring 401, and the deformation of the cooling liquid guide pipe 3 is completely self-adaptively adjusted by the rotating speed of the grinding wheel main body 1; on the contrary, the adjusting rod 402 is lowered to drive the limiting ring 401 to be away from the top of the grinding wheel main body 1 and move towards the bottom of the grinding wheel main body 1, so that the moving area of the cooling liquid guide pipe 3 is reduced, when the grinding wheel main body 1 rotates, the limiting ring 401 limits the deformation of the cooling liquid guide pipe 3, and the deformation of the cooling liquid guide pipe 3 is controlled by the rotating speed of the grinding wheel main body 1 and the position of the limiting ring 401.
Claims (31)
1. An internally cooled grinding wheel comprising a wheel body (1), a grinding portion (2); the grinding wheel main body (1) is opened downwards; the upper end of the grinding wheel main body (1) is connected with a tool shank of a machine tool; the grinding part (2) is arranged at the bottom of the grinding wheel main body (1); the method is characterized in that: the grinding wheel also comprises a cooling liquid guide pipe (3); the cooling liquid guide pipe (3) is arranged in an inner cavity of the grinding wheel main body (1); the water inlet end of the cooling liquid guide pipe (3) penetrates through the top of the inner cavity of the grinding wheel main body (1) and is communicated with the cooling liquid supply part; the water outlet end of the cooling liquid guide pipe (3) is fixedly arranged at the inner edge of the lower end of the grinding wheel main body (1); the cooling liquid guide pipe (3) is an elastic hose.
2. The internally cooled grinding wheel according to claim 1, wherein: the cooling liquid guide pipe (3) is a rubber hose.
3. The internally cooled grinding wheel according to claim 1 or 2, characterized in that: the grinding wheel comprises N cooling liquid guide pipes (3); n is 1-40.
4. The internally cooled grinding wheel according to claim 3, wherein: n is 2-20.
5. The internally cooled grinding wheel according to claim 4, wherein: n is 4-10.
6. The internally cooled grinding wheel according to claim 3, wherein: the water outlet ends of the N cooling liquid guide pipes (3) are uniformly arranged along the circumferential direction in the grinding wheel main body (1).
7. The internally cooled grinding wheel according to claim 4 or 5, wherein: the water outlet ends of the N cooling liquid guide pipes (3) are uniformly arranged along the circumferential direction in the grinding wheel main body (1).
8. The internally cooled grinding wheel according to any one of claims 1, 2, 4 to 6, wherein: this emery wheel still includes: a deformation limiting device (4); deformation stop device (4) include: a limiting ring (401) and an adjusting rod (402); the limiting ring (401) is arranged in an inner cavity of the grinding wheel main body (1) and is arranged between the cooling liquid guide pipe (3) and the inner wall of the grinding wheel main body (1); one end of the adjusting rod (402) is hinged to the limiting ring (401), and the other end of the adjusting rod (402) penetrates through the top of the grinding wheel main body (1) and extends out of the grinding wheel main body (1).
9. The internally cooled grinding wheel according to claim 3, wherein: this emery wheel still includes: a deformation limiting device (4); deformation stop device (4) include: a limiting ring (401) and an adjusting rod (402); the limiting ring (401) is arranged in an inner cavity of the grinding wheel main body (1) and is arranged between the cooling liquid guide pipe (3) and the inner wall of the grinding wheel main body (1); one end of the adjusting rod (402) is hinged to the limiting ring (401), and the other end of the adjusting rod (402) penetrates through the top of the grinding wheel main body (1) and extends out of the grinding wheel main body (1).
10. The internally cooled grinding wheel according to claim 8, wherein: the deformation limiting device (4) comprises M adjusting rods (402), and the M adjusting rods (402) are uniformly hinged around the limiting ring (401); m is 1 to 30.
11. The internally cooled grinding wheel according to claim 9, wherein: the deformation limiting device (4) comprises M adjusting rods (402), and the M adjusting rods (402) are uniformly hinged around the limiting ring (401); m is 1 to 30.
12. The internally cooled grinding wheel according to claim 10 or 11, wherein: m is 2 to 20.
13. The internally cooled grinding wheel according to claim 12, wherein: m is 3 to 10.
14. The internally cooled grinding wheel according to any one of claims 1, 2, 4 to 6, 9 to 10, and 13, wherein: the water outlet end of the cooling liquid guide pipe (3) is arranged at the inner edge of the lower end of the grinding wheel main body (1) and specifically comprises the following steps: this emery wheel still includes: the end fixing device (5), the end fixing device (5) is arranged on the inner side of the inner edge of the lower end of the grinding wheel main body (1); the end fixing device (5) comprises: a guide tube positioning hole (501); the coolant guide tube (3) includes: a positioning sleeve (301); the positioning sleeve (301) is arranged at the water outlet end of the cooling liquid guide pipe (3); the cooling liquid guide pipe (3) is connected with the guide pipe positioning hole (501) through a positioning sleeve (301).
15. The internally cooled grinding wheel according to claim 3, wherein: the water outlet end of the cooling liquid guide pipe (3) is arranged at the inner edge of the lower end of the grinding wheel main body (1) and specifically comprises the following steps: this emery wheel still includes: the end fixing device (5), the end fixing device (5) is arranged on the inner side of the inner edge of the lower end of the grinding wheel main body (1); the end fixing device (5) comprises: a guide tube positioning hole (501); the coolant guide tube (3) includes: a positioning sleeve (301); the positioning sleeve (301) is arranged at the water outlet end of the cooling liquid guide pipe (3); the cooling liquid guide pipe (3) is connected with the guide pipe positioning hole (501) through a positioning sleeve (301).
16. The internally cooled grinding wheel according to claim 8, wherein: the water outlet end of the cooling liquid guide pipe (3) is arranged at the inner edge of the lower end of the grinding wheel main body (1) and specifically comprises the following steps: this emery wheel still includes: the end fixing device (5), the end fixing device (5) is arranged on the inner side of the inner edge of the lower end of the grinding wheel main body (1); the end fixing device (5) comprises: a guide tube positioning hole (501); the coolant guide tube (3) includes: a positioning sleeve (301); the positioning sleeve (301) is arranged at the water outlet end of the cooling liquid guide pipe (3); the cooling liquid guide pipe (3) is connected with the guide pipe positioning hole (501) through a positioning sleeve (301).
17. The internally cooled grinding wheel according to claim 14, wherein the end fixing device (5) has an annular structure, the guide tube positioning holes (501) are annularly arranged along the end fixing device (5), the number of the guide tube positioning holes (501) is greater than or equal to the number of the coolant guide tubes (3), and an included angle α between the central axis direction of the guide tube positioning holes (501) and the grinding surface of the grinding part (2) is 10 to 90 degrees.
18. The internally cooled grinding wheel according to claim 15 or 16, wherein the end fixing device (5) has an annular structure, the guide tube positioning holes (501) are annularly arranged along the end fixing device (5), the number of the guide tube positioning holes (501) is greater than or equal to the number of the coolant guide tubes (3), and an included angle α between the central axis direction of the guide tube positioning holes (501) and the grinding surface of the grinding part (2) is 10 to 90 degrees.
19. The internally cooled grinding wheel according to claim 17 wherein α is 30-85 degrees.
20. The internally cooled grinding wheel according to claim 18 wherein α is 30-85 degrees.
21. The internally cooled grinding wheel according to claim 19 or 20, wherein α is 45 to 80 degrees.
22. The internally cooled grinding wheel according to claim 8, wherein: the adjusting rod (402) is connected with the top of the grinding wheel main body (1) through a threaded structure.
23. The internally cooled grinding wheel according to any one of claims 1, 2, 4-6, 9-10, 13, 15-17, 19, 20, wherein: this emery wheel still includes: a pipe fixing device (6); the pipe fixing device (6) comprises: a connector (601); a through hole is arranged on the axis of the connector (601), and an external thread end is arranged outside the connector (601); the external thread end of the connector (601) is connected with the top of the grinding wheel main body (1), and the cooling liquid guide pipe (3) penetrates through a through hole of the connector (601) and is fixed through the connector (601).
24. The internally cooled grinding wheel according to claim 3, wherein: this emery wheel still includes: a pipe fixing device (6); the pipe fixing device (6) comprises: a connector (601); a through hole is arranged on the axis of the connector (601), and an external thread end is arranged outside the connector (601); the external thread end of the connector (601) is connected with the top of the grinding wheel main body (1), and the cooling liquid guide pipe (3) penetrates through a through hole of the connector (601) and is fixed through the connector (601).
25. The internally cooled grinding wheel according to claim 8, wherein: this emery wheel still includes: a pipe fixing device (6); the pipe fixing device (6) comprises: a connector (601); a through hole is arranged on the axis of the connector (601), and an external thread end is arranged outside the connector (601); the external thread end of the connector (601) is connected with the top of the grinding wheel main body (1), and the cooling liquid guide pipe (3) penetrates through a through hole of the connector (601) and is fixed through the connector (601).
26. The internally cooled grinding wheel according to claim 23, wherein: the pipe fixing device (6) further comprises: a locking band (602); the water inlet end of the coolant guide pipe (3) penetrates through the through hole of the connector (601), and the coolant guide pipe (3) is fixed on the connector (601) by the locking hoop (602).
27. The internally cooled grinding wheel according to claim 24 or 25, wherein: the pipe fixing device (6) further comprises: a locking band (602); the water inlet end of the coolant guide pipe (3) penetrates through the through hole of the connector (601), and the coolant guide pipe (3) is fixed on the connector (601) by the locking hoop (602).
28. The internally cooled grinding wheel of claim 26, wherein: the locking band (602) comprises: a locking plate (60201) and a locking structure (60202); two ends of the locking plate (60201) are provided with locking holes; the locking plate (60201) is sleeved at the position where the coolant guide pipe (3) is fixed on the connector (601); the locking holes at the two ends of the locking plate (60201) are aligned; the locking structure (60202) fastens the locking sheet (60201) through the locking hole.
29. The internally cooled grinding wheel according to claim 27, wherein: the locking band (602) comprises: a locking plate (60201) and a locking structure (60202); two ends of the locking plate (60201) are provided with locking holes; the locking plate (60201) is sleeved at the position where the coolant guide pipe (3) is fixed on the connector (601); the locking holes at the two ends of the locking plate (60201) are aligned; the locking structure (60202) fastens the locking sheet (60201) through the locking hole.
30. A method of using the internally cooled grinding wheel according to any one of claims 1 to 29, wherein: the method comprises the following steps:
(1) the machine tool drives the grinding wheel main body (1) to rotate through the tool holder, cooling liquid flows to the inner cavity of the grinding wheel main body (1) along the cooling liquid guide pipe (3), and the cooling liquid plays a role in cooling a grinding surface;
(2) the centrifugal force is generated due to the rotation of the grinding wheel main body (1), the cooling liquid guide pipe (3) is an elastic hose, the cooling liquid guide pipe (3) deforms under the action of the centrifugal force, and the deformation of the cooling liquid guide pipe (3) changes the flow velocity of the cooling liquid; the method specifically comprises the following steps: the faster the rotation speed of the grinding wheel main body (1), the larger the generated centrifugal force, the larger the deformation amplitude of the cooling liquid guide pipe (3), the larger the flow speed of the cooling liquid in the cooling liquid guide pipe (3), and more cooling liquid is sprayed on a grinding surface; on the contrary, the lower the rotation speed of the grinding wheel body (1), the smaller the generated centrifugal force, the smaller the deformation amplitude of the cooling liquid guide pipe (3), the smaller the flow speed of the cooling liquid in the cooling liquid guide pipe (3), and less cooling liquid is sprayed on the grinding surface.
31. The method of claim 30, further comprising: the method further comprises a step (3) of controlling the deformation of the cooling liquid guide pipe (3) through the deformation limiting device (4) specifically as follows: the adjusting rod (402) is lifted to drive the limiting ring (401) to move towards the top of the grinding wheel main body (1), the moving area of the cooling liquid guide pipe (3) is expanded until the cooling liquid guide pipe (3) is completely separated from the limiting ring (401), and the deformation of the cooling liquid guide pipe (3) is completely self-adaptively adjusted by the rotating speed of the grinding wheel main body (1); on the contrary, the adjusting rod (402) is lowered to drive the limiting ring (401) to be far away from the top of the grinding wheel main body (1) and move towards the bottom of the grinding wheel main body (1), the moving area of the cooling liquid guide pipe (3) is reduced, when the grinding wheel main body (1) rotates, the limiting ring (401) limits the deformation of the cooling liquid guide pipe (3), and the deformation of the cooling liquid guide pipe (3) is controlled by the rotating speed of the grinding wheel main body (1) and the position of the limiting ring (401).
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| CN112706084B (en) * | 2020-12-28 | 2021-12-10 | 湖南理工学院 | Self-adaptive supply instantaneous cooling block type structured diamond grinding wheel |
| CN113664738A (en) * | 2021-09-06 | 2021-11-19 | 湘潭大学 | Internal cooling grinding wheel |
| CN114310604B (en) * | 2021-12-02 | 2023-09-19 | 江苏兴洋管业股份有限公司 | Commercial pipe inner wall equipment of polishing |
| CN117067124B (en) * | 2023-10-13 | 2023-12-26 | 歌玛磨具南通有限公司 | Self-cooling grinding wheel |
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| SU854700A1 (en) * | 1978-09-11 | 1981-08-15 | Предприятие П/Я А-3474 | Machining fluid feed method |
| CN2754817Y (en) * | 2004-12-04 | 2006-02-01 | 广东科达机电股份有限公司 | Liquid cooled grinding wheel |
| CN1970231A (en) * | 2005-11-25 | 2007-05-30 | 贵州新艺机械厂 | Internal cooling method of porous grinding wheel for metal cutting |
| CN108161777A (en) * | 2017-12-26 | 2018-06-15 | 湘潭大学 | A kind of pressurization inner-cooled grinding wheel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| RO115431B1 (en) * | 1996-05-09 | 2000-02-28 | Institutul De Cercetare Şi Proiectare Pentru Mecanică Fină | Superabrasive grinding tool with internal cooling means |
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| SU854700A1 (en) * | 1978-09-11 | 1981-08-15 | Предприятие П/Я А-3474 | Machining fluid feed method |
| CN2754817Y (en) * | 2004-12-04 | 2006-02-01 | 广东科达机电股份有限公司 | Liquid cooled grinding wheel |
| CN1970231A (en) * | 2005-11-25 | 2007-05-30 | 贵州新艺机械厂 | Internal cooling method of porous grinding wheel for metal cutting |
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