The interior cooling of the closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding
Technical field
The present invention relates to a kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding; Specifically be meant in grinding process the grinding wheel unit that cools off in carrying out with the mode of closed supply grinding fluid, be used in particular for high-speed grinding and be the grinding method of cross grinding.
Background technology
Along with the development of high speed and ultrahigh speed grinding technology, the extensive use of difficult-to-machine material in industry, and in the grinding to the raising of surperficial quality requirement, the control for grinding temperature in the grinding process also seems particularly important.And improve the feed liquid way of grinding fluid, and improve cooling effect, can improve grinding quality from reducing grinding temperature to a great extent.In be cooled to a kind of mode that can effectively promote cooling effect in the grinding feed liquid way; The grinding wheel unit of cooling is existing in the prior art a lot of in adopting; For example the Chinese patent file CN on May 30th, 2007 has provided a kind of like this emery wheel for 1970231A number; Promptly utilize the open structure characteristics of apertured emery wheel,, utilize centrifugal force to make grinding fluid be transported to grinding area through the emery wheel hole through the mode of collecting ring is installed in the emery wheel both sides; This construction package is only applicable to the conventional abrasive material emery wheel of apertured, and the grinding fluid supply is little.On November 30th, 1999, U.S.'s patent document provided a kind of like this emery wheel for No. 5993297; Adopt the mode of handle of a knife centre bore feed flow to make cooling fluid get into the emery wheel internal cavities; Aperture through three circle different directions on the emery wheel circumference throws away again; This construction package has specific (special) requirements or needs special external-change-internal device for cooling main shaft, and is only applicable to the week mill.From present existing grinding wheel structure and cooling fluid supply mode, the great majority design is to be used for all grinding abrasive disks in the interior cooling feed liquid way, is necessary to develop the interior cooling grinding wheel unit of realizing cross grinding.
Summary of the invention
The object of the present invention is to provide a kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding; Be a kind of different with prior art, be used for interior cooling grinding wheel unit cross grinding, that can produce the self-priming effect to grinding fluid; But this device is enhanced cooling in use, reduces grinding temperature.
The objective of the invention is to realize like this, a kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding promptly is provided, said device includes handle of a knife, fixation kit, rotary components; It is characterized in that:
Said handle of a knife upper end links to each other with the high-speed main spindle of grinding machine, and the lower end is the cylinder that screwed hole is arranged in, links to each other with rotary components, and under the high speed turning effort of main shaft, the driven rotary assembly is done rotation at a high speed together;
Said fixation kit comprises fixedly chuck, emery wheel overcoat, water inlet pipe; Fixedly chuck is connected with the emery wheel overcoat, is fixed on the lathe through top flange simultaneously, in grinding process, keeps static; The emery wheel overcoat is enclosed within on handle of a knife and the grinding wheel base body, and keeps matched in clearance with both, between emery wheel overcoat, handle of a knife and grinding wheel base body, forms one first liquid storage cylinder simultaneously; Water inlet pipe be fixed on that emery wheel puts outward and the through hole that puts outward with emery wheel corresponding, make cooling fluid can get into first liquid storage cylinder outward through the through hole that water inlet pipe and emery wheel put;
Said rotary components comprises grinding wheel base body, adjustment cushion block, overcurrent fixture, tray; This grinding wheel base body have six along grinding wheel spindle to all becoming the inclined hole at angle of inclination with circumferencial direction, it is consistent that direction and cooling fluid flow to, this hole will utilize the inertia of liquid and the high speed rotating generation turbine effect of emery wheel to force coolant flow.Grinding wheel base body upper end is provided with that two corresponding keyways match on two outstanding keys and the handle of a knife, and handle of a knife transmits moments of torsion drive grinding wheel base bodies through this two keys and rotates at work; The cylindrical hole on grinding wheel base body top cooperates with the face of cylinder of handle of a knife lower end cylinder outer surface and positions; Adjustment cushion block and tray are enclosed within on the overcurrent fixture, and the overcurrent fixture is connected with the screwed hole of handle of a knife lower end through screw thread, and with grinding wheel base body, adjust cushion block and tray axial locking on handle of a knife; Between grinding wheel base body, adjustment piece and tray, form one second liquid storage cylinder simultaneously.
Have four grooves (but being not limited to four) on the described tray.
Have the gap between described flow table and the overcurrent securing member.
On handle of a knife and grinding wheel base body, respectively have a circle helicla flute; Direction is identical with the flow direction of gas flow first liquid storage cylinder inside; Be in the matched in clearance place, the face of cylinder of the two and emery wheel overcoat respectively; Be the joint between fixation kit and the rotary components, be used for stoping cooling fluid to run off through sucking gas.
The advantage of apparatus of the present invention is that whole modular construction is simple, has adopted combining structure, only needs in the use to change grinding wheel base body, and miscellaneous part can use for a long time; Utilize emery wheel self to rotate the centrifugal action of generation at a high speed, reach self-priming, pressurized effect cooling fluid; Cooling fluid injection direction and position can be regulated; Matched in clearance between fixation kit and rotary components, the handle of a knife adopts the helicla flute hermetic seal, and is simple in structure, good sealing effect.This device goes for the cross grinding grinding wheel structure of multiple size and dimension.
Description of drawings
Fig. 1 is an integral installation distribution structure full sectional view of the present invention;
Fig. 2 is a grinding wheel base body structure key diagram of the present invention;
Fig. 3 is a tray structure key diagram of the present invention;
Fig. 4 is an overall appearance key diagram of the present invention;
Fig. 5 is a blast structure key diagram of the present invention.
Concrete label is following among the figure:
1, handle of a knife 2, fixedly chuck 3, emery wheel overcoat 4, water inlet pipe
5, grinding wheel base body 51, key 52, cylindrical hole 53, inclined hole
54,11, helicla flute 6, adjustment cushion block 7, overcurrent fixture 8, tray
81, groove 9, first liquid storage cylinder 10, second liquid storage cylinder
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is done further explanation.
A kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding of the present invention, said device includes handle of a knife 1, fixation kit, rotary components.
Said handle of a knife 1 upper end links to each other with the high-speed main spindle of grinding machine, and the lower end is the cylinder that screwed hole is arranged in, links to each other with rotary components, and under the high speed turning effort of main shaft, the driven rotary assembly is done rotation at a high speed together.
Said fixation kit comprises fixedly chuck 2, emery wheel overcoat 3, water inlet pipe 4.Fixedly chuck 2 is connected with emery wheel overcoat 3, can or be threaded for welding, is fixed on the lathe through top flange simultaneously, in grinding process, keeps static.Emery wheel overcoat 3 is enclosed within on handle of a knife 1 and the grinding wheel base body 5, and keeps matched in clearance with both, between emery wheel overcoat 3, handle of a knife 1 and grinding wheel base body 5, forms one first liquid storage cylinder 9 simultaneously.Water inlet pipe 4 is fixed on the emery wheel overcoat 3 and is corresponding with the through hole on the emery wheel overcoat 3, makes cooling fluid can get into first liquid storage cylinder 9 through the through hole on water inlet pipe 4 and the emery wheel overcoat 3.
Said rotary components comprises grinding wheel base body 5, adjustment cushion block 6, overcurrent fixture 7, tray 8.Grinding wheel base body 5 upper ends are provided with that two corresponding keyways interlock on two outstanding keys 51 and the handle of a knife 1; Handle of a knife 1 (can also use other modes to transmit moment of torsion here through these two keys, 51 transmission moments of torsion drive grinding wheel base bodies, 5 rotations at work; Like the spline transmission; Frictional drive etc.), the cylindrical hole 52 on grinding wheel base body 5 tops cooperates with the cylinder outer surface of handle of a knife 1 lower end and positions.Adjustment cushion block 6 is enclosed within on the overcurrent fixture 7 with tray 8, and overcurrent fixture 7 is connected with the screwed hole of handle of a knife 1 lower end through screw thread, simultaneously with grinding wheel base body 5, adjust cushion block 6 and tray 8 axial lockings on handle of a knife 1; Between grinding wheel base body 5, adjustment piece 6 and tray 8, form one second liquid storage cylinder 10 simultaneously.Each parts carries out axial location through face of cylinder contact carrying out radial location through the upper and lower end face contact in the rotary components, and each locating surface all passes through grinding, has guaranteed the axiality between each part, to satisfy the requirement for dynamic balance of emery wheel work.
Consult Fig. 2 and Fig. 3, Fig. 2 and Fig. 3 are respectively the structure key diagram of grinding wheel base body 5 and tray 8.Emery wheel has the effect of self-priming to cooling fluid under rotating at a high speed.Have on the grinding wheel base body 5 six along grinding wheel spindle to the inclined hole 53 all angled with circumferencial direction, direction and cooling fluid flow to consistent, as shown in Figure 2.Cooling fluid at first gets into first liquid storage cylinder 9 by water inlet pipe 4; Then get into second liquid storage cylinder 10 along six inclined holes on the grinding wheel base body 5 53; Rotate at a high speed at emery wheel under the centrifugal action of generation; Cooling fluid is through four grooves 81 on the tray 8, and is as shown in Figure 3, and along the gap ejection that forms between tray 8 and the overcurrent securing member 7.The instantaneous vacuum that produce in second liquid storage cylinder 10 this moment produces the self-priming effect to cooling fluid, makes cooling fluid constantly get into emery wheel inside in a steady stream, makes cooling fluid produce bigger speed and pressure in the exit simultaneously under the centrifugal action.The cooling fluid direction and the eject position that are ejected into grinding area can be regulated.The gap that forms between tray 8 and the overcurrent securing member 7 at an angle, this angle has determined the direction of cooling fluid ejection, can confirm with size according to the structure of grinding wheel base body 5, makes cooling fluid emission direction sensing grinding area; Simultaneously,, can adjust the axial location of tray 8 and overcurrent securing member 7, thereby the control cooling fluid is ejected into the height of grinding area through using the adjustment piece 6 of different-thickness.Therefore,, and constantly wear and tear, can guarantee that still grinding fluid is ejected into the position of grinding area all the time at the grinding process medium plain emery wheel even the structure of grinding wheel base body 5 is different with size.
Consult Fig. 4 and Fig. 5, Fig. 4 and Fig. 5 are respectively the integral body and the explosive view of emery wheel outward appearance.As can beappreciated from fig. 5; On handle of a knife 1 and grinding wheel base body 5, respectively opened a circle helicla flute 11,54; The inner flow direction of direction and gas flow first liquid storage cylinder 9 is identical, is in the matched in clearance place, the face of cylinder of the two and emery wheel overcoat 3 respectively, i.e. joint between fixation kit and the rotary components.Like this when emery wheel rotates at a high speed; Can portion of air be brought into these two face of cylinder fit clearances from the top and bottom of emery wheel overcoat 3 respectively; First liquid storage cylinder 9 is played the effect of air seal; Prevent that cooling fluid from leaking, guarantee the pressure (also can not want helicla flute 11,54, reduce leaking of cooling fluid) of cooling fluid through the gap that reduces between handle of a knife 1, matrix 5 and the emery wheel overcoat 3.
Construction package of the present invention utilizes the centrifugal action of emery wheel work high speed rotation cleverly, plays supercharging and self-priming effect to cooling fluid, cooperates closed to supply the structure of cooling fluid, makes cooling fluid produce bigger pressure and flow in the exit.Utilize emery wheel to rotate at a high speed simultaneously, the matched in clearance between fixation kit and rotary components, the handle of a knife adopts the helicla flute hermetic seal, and is simple in structure.
Construction package of the present invention is for convenience detach, and most assemblies can be reused, and grinding wheel base body is unique refill-unit, and improves the wearing and tearing that cooling effect can effectively reduce emery wheel, prolong the service life of grinding wheel base body, so the present invention has very big economy.
Construction package of the present invention can be realized the adjusting of cooling fluid injection direction and eject position, makes cooling fluid directly act on grinding area, to reach optimum cooling effect.
The design feature of device of the present invention can be used for the grinding wheel structure of the various sizes and the shape of all cross grindings.