CN203696674U - Spring grinding mechanism - Google Patents
Spring grinding mechanism Download PDFInfo
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- CN203696674U CN203696674U CN201320892681.8U CN201320892681U CN203696674U CN 203696674 U CN203696674 U CN 203696674U CN 201320892681 U CN201320892681 U CN 201320892681U CN 203696674 U CN203696674 U CN 203696674U
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Abstract
The utility model relates to the spring grinding field, particularly relates to a spring grinding mechanism, which comprises an upper grinding wheel, a lower grinding wheel and a millstone, wherein, the millstone is set between the upper grinding wheel and the lower grinding wheel; the upper grinding wheel or the lower grinding wheel comprises an inner grinding wheel and an outer grinding wheel, and the inner grinding wheel is sleeved inside the outer grinding wheel; the inner grinding wheel or outer grinding wheel is driven by a transmission mechanism; and the rotation direction of the inner grinding wheel and the outer grinding wheel is opposite. By adopting above solution, the spring grinds under self-rotation state, therefore quality and output of the grinding spring can be raised, and advantages of energy saving, environmental protection and low grinding cost are provided. Also, the bearing performance is good, the mechanism precision maintenance capability is long and the stability is good.
Description
Technical field
The utility model relates to spring grinding field, refers in particular to a kind of spring grinding mechanism.
Background technology
At present, the signal of numerical control spring grinding machine double-end surface milling spring machine basic system is shown in that figure is as figure mono-, figure bis-, this structure is upper emery wheel 01, lower grinding wheel 02, upper emery wheel 01 can move up and down, the mill 03 of laying spring 04 is set between two abrasive wheel end faces, mill 03 fixed-axis rotation, basic functional principle is: mill 03 fixed-axis rotation, spring 04 on mill 03 is rotated drive by mill 03, enter between two abrasive wheel end faces from a point, arrive c point place through b point, from between two abrasive wheel end faces out, spring 04 continues to be rotated drive by mill 03, arrive again a point place from c point through d point, circulation is gone down like this, spring 04 is driven in whole process by mill 03, upper emery wheel 01 moves down at leisure, spring 04 both ends of the surface between two abrasive wheel end faces are ground, in the time that upper emery wheel 01 is moved down into grinding spring 04 length requirement, stop mobile, then turn back to starting point, mill 03 has also rotated at leisure, this is that operator opens single or double acting door, then the spring 04 of milled spills through spring doorway one by one, after spring 04 is unsnatched, close single or double acting door.Spring 04 is put on mill 03, can carry out again next mill and cut.
This operation principle has following shortcoming:
The first, β angle is generally 60 °-70 °, and the above emery wheel of institute is moving down in process, and on mill, a point spring passes through b point from a point and arrives the c point time, only has 17% left and right of mill rotation lap time.1), whole dish spring only has the simultaneously grinding in plane of grinding wheel of 17% left and right therefore, produce like this three aspect consequences:, production efficiency is low.2), each spring amount of being ground only has mill to rotate 17% of the upper emery wheel amount of moving down of a circle, also has 83% amount of movement, spring reality is in emery wheel outside, be not ground, this is irrational, and this irrational consequence is because the unexpected stock removal in emery wheel a point place is very large, thereby the wearing and tearing of a point place are very fast, the wearing and tearing of b point place are slow, and c point is not participated in grinding substantially.So last abrasive wheel end face shape becomes truncated cone-shaped, as figure tri-, the vertical precision while having had a strong impact on spring grinding.3) during, because of two wheel grindings, only have the position that overlaps with mill stressed, and emery wheel a point place stock removal is very large, main grinding force is in this place, and what the axial thrust load of above-mentioned grinding force was synthetic axially makes a concerted effort, away from grinding wheel spindle center line, therefore, grinding wheel spindle and abrasive disc will bear large moment of flexure, thereby have produced large geometry deformation, more obvious for regrinding spring, have a strong impact on spring grinding accuracy.
The second, during due to grinding, because of emery wheel injustice, spring end face is actual is the plane that is not orthogonal to axle of spring, in the whole grinding process that therefore spring a point is ordered to c, can not cause rotation, and therefore grinding rear spring precision is not high.
Finally, there is no self-regulation structure because grind at present the magnitude of interference that supports the bearing of grinding wheel spindle in spring machine.So why equipment used after a period of time, precision and stability can decline at once.For spring grinding accuracy and stability are not declined, often need high professional qualification employee, regulate by hand the magnitude of interference of bearing.So not only this skilled worker's difficulty is looked for, and regulates the magnitude of interference of bearing also pretty troublesome.
In a word, though from device structure and mill spring quality, or from grinding production efficiency.At present, the operation principle of numerical control spring grinding machine and structure all need innovation.
For this reason, the inventor makes further research, and has developed a kind of spring high quality and high efficiency method for grinding, and this case produces thus.
Utility model content
The purpose of this utility model is to provide a kind of spring grinding mechanism, not only can improve the Quality and yield of grinding spring, and energy-conserving and environment-protective and grinding cost low, reduce part manufacturing cost, the long and good stability of MECHANISM PRECISION retentivity.
To achieve these goals, the technical solution of the utility model is as follows:
A kind of spring grinding mechanism, comprises emery wheel, lower grinding wheel, and mill, described mill is between upper emery wheel and lower grinding wheel; At least one is made up of described upper emery wheel or lower grinding wheel interior emery wheel and outer emery wheel, and interior emery wheel overlaps outside in emery wheel; Described interior emery wheel or outer emery wheel drive by transmission mechanism, the direction of rotation of interior emery wheel and outer emery wheel.
Further, described mill is connected with the mobile combined mechanism of swing, the mobile combined mechanism of described swing comprises the worm screw being connected with motor linkage, worm screw both sides are provided with two worm gears, described worm gear and slide axle are connected, on described slide axle, be provided with slide block axle, described slide block axle and connecting rod A are connected, and described connecting rod A is connected with mill; Slide block axle axial line and slide axle axial line distance can regulate.
Further, in the mobile combined mechanism of described swing, be provided with bearing, described bearing is connected by connecting rod B and rotating disk, and one end of connecting rod B is by being arranged on disk edge pivot pin.
Further, described transmission mechanism comprises the belt pulley with motor linkage, the grinding wheel spindle that can rotate with belt pulley, and described grinding wheel spindle is fixedly connected with interior emery wheel or outer emery wheel.
Further, the interior grinding wheel spindle sleeve of described interior emery wheel is combined in the outer grinding wheel spindle of outer emery wheel, between them, be provided with taper roll bearing, outer grinding wheel spindle is arranged in bearing sleeve, between bearing sleeve and outer grinding wheel spindle, be also provided with taper roll bearing, on the cycle surface of taper roll bearing, be all provided with U-shaped spring pad, described U-shaped spring pad and taper roll bearing contact-making surface are arc.
Further, described upper emery wheel is connected by upper coupling and lower coupler and motor shaft, is provided with shaft coupling sheet between upper coupling and lower coupler, offers the breach of four deciles on described shaft coupling sheet limit.
Further, described upper emery wheel is made up of interior emery wheel and outer emery wheel, and lower grinding wheel is integral type structure.
Further, described lower grinding wheel is made up of interior emery wheel and outer emery wheel, and upper emery wheel is integral type structure.
Further, described lower grinding wheel and upper emery wheel are all by being made up of interior emery wheel and outer emery wheel, and under this structure situation, two interior emery wheel rotation directions are identical, and two outer emery wheel rotation directions are also identical, but inside and outside emery wheel direction of rotation.
Adopt after such scheme, the utility model compared with prior art, has the following advantages:
One, production efficiency is high: because: first, all grindings in plane of grinding wheel simultaneously of whole dish spring.Secondly, because have at least an emery wheel to be made up of inside and outside emery wheel, and direction of rotation is contrary, so spring can be in grinding under autorotation.Thereby, can adopt large inflow grinding.So production efficiency is 2 times of left and right of current numerical control grinding coiling machine.
Two, grinding perpendicularity precision is high and stability is high; 1, because spring moves around from the inside and outside footpath of emery wheel in plane of grinding wheel, so every, emery wheel is all participated in the each spring of grinding, and suffered stock removal is too, therefore emery wheel uniform wear, thus improve grinding accuracy and stability.2, because have at least 1 emery wheel to be formed by inside and outside emery wheel, so grinding under spring energy autorotation.
Finally, because this mechanism includes the mechanism that above-mentioned 2 technical characterictics combine, these 2 technical characterictics have been combined to form new technical characterictic------and have realized on spring end face at every all by every some grinding of emery wheel, abrasion of grinding wheel is even especially, start to be finished to emery wheel from new emery wheel, without mowing emery wheel, plane of grinding wheel remains high flatness.Therefore, greatly improved grinding perpendicularity precision and stability
Three, energy-conserving and environment-protective and grinding cost are low: 1, consume energy low: during because of spring grinding, be rotation, grain direction when spring end face grinding constantly changes, grinding skin rapid heat dissipation, be difficult for heat build-up, thereby spring is not easy burn, also easily grinding, so power consumption is also low.2, improve working environment and grinding cost is low: because spring is in the time of grinding, abrasion of grinding wheel is even especially, starts to be finished to emery wheel, without mowing emery wheel from new emery wheel.So solved spring more than current numerical control spring grinding machine grinding steel wire diameter 3mm, needed the troublesome problem of moment mowing emery wheel.Thereby improve emery wheel utilization rate, improved operator's working environment, reduced grinding cost simultaneously.
Four, simple in structure, low cost of manufacture: mill is arranged on the connecting rod that swings mobile combined mechanism, whole dish spring swings in to be shown between two abrasive wheel end faces, to rely on to swing bearing (bearing is arranged on gear housing lower plane) in mobile combined mechanism, bearing is connected by connecting rod B and rotating disk, and one end of connecting rod B is by being arranged on disk edge pivot pin.Reducing motor rotates, drive dial rotation by output shaft and flat key, make connecting rod B do plane motion by pivot pin bearing, gear housing (gear housing is arranged on balance staff) take balance staff as center of rotation swings back and forth, and has realized thus whole dish spring and has swung in the object of showing between two abrasive wheel end faces.When design, as long as mill swings in, shows dwell point, be just connecting rod A, C point and center of turntable point in a straight line.So, connecting rod A point with dial rotation to A or C point vicinity, casing there is no swing, also can say, swing very little very little, minimum for mill center and emery wheel misalignment, can think and when the requirement that still meets grinding spring is shown in other words, unload spring place status requirement, design advantage is like this, 1, can select price low and control simple common electric machine, as long as at electric motor starting, or while stopping, be set in the position that mill swung in or showed stop, utilize A, C, O is in the time of same straight line, because causing, spring grinding force promotes the resultant moment that gear housing swings, cannot promote casing and swing this technical characterictic, thereby while having guaranteed grinding spring, the position that mill needs.2, on rotating disk, be provided with all different 4 pin holes of radius size, radius size all differs 0.2mm left and right, so that mill is while swinging between two emery wheels, adjust when swinging two slide block axle axial lines of mobile combined mechanism and respectively matching slide axle axial line conllinear, mill center line overlaps substantially with emery wheel center line, design does not need to regulate continuously pivot angle size mechanism like this, and can meet instructions for use.Simple in structure, reduce manufacturing cost.
Five, MECHANISM PRECISION retentivity length and good stability: because be all provided with U-shaped spring pad on the cycle surface of the taper roll bearing of supporting grinding wheel spindle, U-shaped spring pad is equivalent to axially can be out of shape, and has again the spring of large elastic stiffness.Design advantage is in the time that mechanism installs like this, after the taper roll bearing magnitude of interference regulates, mechanism in use, because taper roll bearing will wear and tear certainly, in order to keep the original magnitude of interference of taper roll bearing, so move axially auto-compensation bearing wear amount by U-shaped spring pad housing washer, thereby reach the object of the self-aligning bearing magnitude of interference.Thereby there is the long and good stability feature of MECHANISM PRECISION retentivity.
Accompanying drawing explanation
Figure mono-is existing numerical control spring grinding machine structural representation sketch;
Figure bis-is that the A-A of Fig. 1 is to view;
Figure tri-is that the K-K of Fig. 2 is to revolved view;
Figure tetra-is the utility model structural representations;
Figure five is that figure tetra-B-B are to schematic diagram;
Figure six is schematic diagrames of U-shaped spring pad;
Figure seven is that figure five C-C are to schematic diagram;
Figure eight is schematic diagrames of shaft coupling sheet.
description of reference numerals:
Upper emery wheel 1, lower grinding wheel 2, interior emery wheel 21, interior grinding wheel spindle 22, interior belt pulley 23, outer emery wheel 24, outer grinding wheel spindle 25, exterior belt pulley 26, bearing sleeve 27, taper roll bearing 28, U-shaped spring pad 29, mill 3, spring 4, swings mobile combined mechanism 5, worm screw 51, worm gear 52, slide axle 53, slide block axle 54, connecting rod A55, upper coupling 61, lower coupler 62, shaft coupling sheet 63, bearing 71, connecting rod B72, rotating disk 73, balance staff 8.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in the figure, a kind of spring method for grinding and mechanism thereof that the utility model discloses, comprise emery wheel 1, lower grinding wheel 2, at least one is made up of described upper and lower emery wheel 2 interior emery wheel 21 and outer emery wheel 24, in the present embodiment, choose emery wheel 1 for integral type structure, lower grinding wheel 2 is made up of interior emery wheel 21 and outer emery wheel 24, and interior emery wheel 21 outside dimensions are slightly less than outer emery wheel 24 internal diameter sizes, and interior emery wheel 21 overlaps outside in emery wheel 24.Interior emery wheel 21 is contrary with outer emery wheel 24 direction of rotation, outer emery wheel 24 is identical with upper emery wheel 1 direction of rotation, upper emery wheel 1 external diameter is the same with outer emery wheel 24 outside dimensions, upper emery wheel 1 internal diameter is the same with interior emery wheel 21 sizes, in lower grinding wheel 2 endoporus, pallet is installed, while passing in and out between two emery wheels for spring, has been held spring.
Mill 3 is arranged on the connecting rod that swings mobile combined mechanism 5, on described mill 3, has filled spring.Whole dish spring 4 swings in to be shown between two abrasive wheel end faces, to rely on the bearing 71(bearing 71 swinging under mobile combined mechanism 5 to be arranged on gear housing lower plane---gear-box swings the shell of mobile combined mechanism 5) be connected by connecting rod B72 and rotating disk 73, one end of connecting rod B72 is by being arranged on rotating disk 73 edge pivot pins.When use, reducing motor rotates, drive rotating disk 73 to rotate by output shaft and flat key, make connecting rod B72 do plane motion by pivot pin bearing, gear housing (gear housing is arranged on balance staff 8) take balance staff 8 as center of rotation swings back and forth, and has realized thus whole dish spring and has swung in the object of showing between two abrasive wheel end faces.When design, as long as mill 3 swings in, shows dwell point, be just connecting rod A55, C point and rotating disk 73 central point O in a straight line, so, connecting rod A55 point turns to A point or C point vicinity with rotating disk 73, and casing there is no swing, also can say, swing very little very littlely, minimum for mill 3 centers and emery wheel misalignment, can think that the requirement that still meets grinding spring is shown in other words to unload spring place status requirement.Design advantage is like this, 1, can select price low and control simple common electric machine, when needing only at electric motor starting or stopping, be set in the position that mill 3 swung in or showed stop, utilize A, C, O in the time of same straight line, promote because spring grinding force causes the resultant moment that gear housing swings, cannot promote casing and swing this technical characterictic, thereby while having guaranteed grinding spring, the position that mill 3 needs.2, on rotating disk 73, be provided with all different 4 pin holes of radius size, radius size all differs 0.2MM left and right, so that mill 3 is while swinging between two emery wheels, adjust swing mobile combined mechanism 5 two slide block axle 54 axial lines with match slide axle 53 axial line conllinear time, mill 3 center lines overlap substantially with emery wheel center line, design does not need to regulate continuously pivot angle size mechanism like this, and can meet instructions for use.Simple in structure, reduce manufacturing cost.
It is to comprise by swinging mobile combined mechanism 5 worm screw 51 being connected with motor linkage that described whole mill spring moves around in plane of grinding wheel, worm screw 51 both sides are provided with two worm gears 52, described worm gear 52 is connected with slide axle 53, on described slide axle 53, be provided with slide block axle 54, described slide block axle 54 is connected with connecting rod A55, after two slide block axles 54 and connection-rod linkage, two slide block axle 54 distances equate with two slide axle 53 distances, described connecting rod A55 is connected with mill 3, described mill 3 is in-built spring.Mechanism installs while adjustment, and in the time of slide block axle 54 axial lines and the 53 axial lines coincidence of slide axle, mill 3 centers of circle are consistent with emery wheel rotation centerline.Before grinding spring, regulate according to spring parameter, general adjusting slider axle 54 axial lines and slide axle 53 axial lines do not overlap, and distance of shaft centers is between the two from being exactly crank length, and when adjusting, two crank lengths must be the same.When work, the rotation of motor is also rotated worm screw 51, worm screw 51 drives two worm gears, 52 axle rotating in same directions, two slide block axle 54 eccentric rotary that coordinate with slide axle 53, thereby make translational motion with the connecting rod that two slide block axles 54 link, the circle that on mill 3, every is all crank length as radius like this, the circle that spring rotation centerline is crank length as radius too.Therefore,, while having implemented spring grinding, whole mill spring moves around in plane of grinding wheel.
Described upper emery wheel 1 is connected with motor shaft by upper coupling 61 and lower coupler 62, between upper coupling 61 and lower coupler 62, is provided with shaft coupling sheet 63, offers the breach of the quartering on described shaft coupling sheet 63 limits.See figure eight, design advantage is like this: first, be convenient to motor connection is installed, can, because of the decentraction of motor shaft and grinding wheel spindle, not vibrate the problem of part Fast Wearing and produce.Secondly, stress performance is good, in transmission process, and a and stressed equating of c groove institute, opposite direction, being equivalent to Dui Zhou center is a turning pair.In like manner, b and d groove institute are stressed also to be equated, direction is also contrary, and being equivalent to axle center is also a couple.They are the effect contrary couple of both direction at grade just.Therefore, shaft coupling sheet 63 is not subject to the turning torque of rotation centerline on plan, unlike cross slider type coupling, has turning torque.Therefore, this shaft coupling sheet 63 stress performances are good, and transmission efficiency is high, and in unit volume, transmission power is large.For this reason, shaft coupling sheet 63 axial dimensions can do very littlely, and external diameter also can correspondingly do little.Finally, actual rotation inertia is little, energy high-speed drive, i.e. and the direct joint transmission of motor, efficiency is high, and the life-span is long.
The interior grinding wheel spindle 22 of described interior emery wheel 21 is linked in the outer grinding wheel spindle 25 of outer emery wheel 24, is provided with taper roll bearing 28 between them.In interior emery wheel 21 drives by interior belt pulley 23, grinding wheel spindle 22 rotates, and outer grinding wheel spindle 25 is arranged in exterior belt pulley 27, and its rotating manner in like manner, is also provided with taper roll bearing 28 between exterior belt pulley 27 and outer grinding wheel spindle 25.On the cycle surface of taper roll bearing 28, be also provided with U-shaped spring pad 29.First, on U-shaped spring pad 29 external diameters, processed groove and bottom land is designed to circular arc type.Design advantage is the magnitude of interference while regulating like this, and U-shaped spring pad 29 can have certain deflection, has again large elastic stiffness, and taper roll bearing 28 magnitudes of interference are while automatically regulating, and spring force changes can be less.Bottom land is designed to circular arc, has avoided stress to concentrate and hardening flaw generation.Improved processing technology simultaneously.Secondly, U-shaped spring and exterior belt pulley 27 and taper roll bearing 28 contact-making surfaces, be not designed to plane contact, and be designed to orthodrome shape contact (seeing figure six), because U-shaped spring pad, in the time of practical application, is out of shape.In other words, actual it with the end contact form of exterior belt pulley 27 and taper roll bearing 28, not designing is just plane contact form.So adopt orthodrome shape, make into line contact, contact wire is a circle, can its contact stress of accurate Calculation, the practical problem such as strain.
The application's operation principle is that upper and lower emery wheel 2 rotates, whole dish spring swings between two abrasive wheel end faces, then spring rotation centerline is swinging under mobile combined mechanism 5 drives, on abrasive wheel end face, making circle track moves, in the time that upper emery wheel 1 moves down, both ends of the spring face under spring autorotation by wheel grinding, in the time being ground to spring length requirement and reaching, upper emery wheel 1 stops moving down, after a while, be back to starting point, mill 3 stops mobile, swing mobile combined mechanism 5 whole dish Spring Pendulum is gone out between emery wheel, lay down whole dish spring.If next dish spring of grinding, so, operator puts into mill 3 spring, then clicks start button, and computer can carry out grinding again by original program.
This Principle of Grinding and Cutting technique effect is:
The first, production efficiency is high: 1, because all grindings in plane of grinding wheel simultaneously of whole dish spring.2, because have at least an emery wheel to be made up of inside and outside emery wheel 24, and direction of rotation is contrary, so spring can be in grinding under autorotation.Thereby, can adopt large inflow grinding.Therefore, production efficiency is 2 times of left and right of current numerical control spring grinding machine.
The second, grinding accuracy is high with stability: 1, because every suffered stock removal of emery wheel is the same, and spring rotation centerline motion track is a circle, radius of circle can regulate, the circle of a series of spring rotation centerline compositions on mill 3, when being adjusted to spring and moving, mean diameter of coil just can be tangent with the external diameter of lower grinding wheel 2 or internal diameter, and every, emery wheel can the each spring of grinding like this.Therefore abrasion of grinding wheel is even, so improved spring grinding accuracy.2, because spring energy rotation grinding, because lower inside and outside emery wheel 24 direction of rotation are different, the following inside and outside emery wheel 24 of institute is to spring grinding force opposite direction, if it is identical with the half that lower outside emery wheel 24 outside dimensions deduct lower outside emery wheel 24 internal diameter size numerical value that lower interior emery wheel 21 outside dimensions deduct the half of lower interior emery wheel 21 internal diameter size numerical value, and while being less than 2 times of mean diameter of coil, no matter spring so moves in plane of grinding wheel, in lower, in emery wheel 21 planes, there is spring end face to be ground, in lower outside emery wheel 24 planes, also have spring end face to be ground.The suffered grinding force of spring in lower in emery wheel 21 planes equates with the suffered grinding force of spring in the corresponding plane of upper emery wheel 1, opposite direction, and they are zero to spring rotation resultant moment.The suffered grinding force of spring in lower outside emery wheel 24 planes is equal with the suffered grinding force of spring in the corresponding plane of upper emery wheel 1, and direction is identical, and they are greater than zero to spring rotation resultant moment.As long as design parameter is reasonable, spring finally has resultant moment can promote spring rotation all the time.Therefore, realized spring grinding under autorotation.
Finally, the mechanism of the combination that comprises above-mentioned 2 technical characterictics due to this mechanism----abrasion of grinding wheel is even especially all by every some grinding of emery wheel to have realized on spring end face at every, start to be finished to emery wheel from new emery wheel, without mowing emery wheel, plane of grinding wheel remains high flatness.Therefore, spring grinding vertical precision and stability have greatly been improved.
Three, energy-conserving and environment-protective and grinding cost are low: 1, consume energy low: during because of spring grinding, be rotation, grain direction when spring end face grinding constantly changes, grinding skin rapid heat dissipation, be difficult for heat build-up, thereby spring is not easy burn, also easily grinding, so power consumption is also low.2, improve working environment and grinding cost is low: because spring, in the time of grinding, starts to be finished to emery wheel from new emery wheel, without mowing emery wheel.So solved spring more than current numerical control spring grinding machine grinding steel wire diameter 3mm, needed the troublesome problem of moment mowing emery wheel.Thereby improve emery wheel utilization rate, improved operator's working environment, meanwhile, reduced grinding cost.
Four, simple in structure, low cost of manufacture: mill 3 is arranged on the connecting rod that swings mobile combined mechanism 5, whole dish spring swings in to be shown between two abrasive wheel end faces, to rely on bearing 71(bearing 71 in the mobile combined mechanism 5 of swing to be arranged on gear housing lower plane), bearing 71 is connected by connecting rod B72 and rotating disk 73, and one end of connecting rod B72 is by being arranged on the pivot pin at rotating disk 73 edges.Reducing motor rotates, drive rotating disk 73 to rotate by output shaft and flat key, make connecting rod B72 do plane motion by pivot pin bearing, gear housing (gear housing is arranged on balance staff 8) take balance staff 8 as center of rotation swings back and forth, and has realized thus whole dish spring and has swung in the object of showing between two abrasive wheel end faces.When design, as long as mill 3 swings in, shows dwell point, be just connecting rod A55, C point and rotating disk 73 central points in a straight line, so, connecting rod A55 point turns to A point and C point vicinity with rotating disk 73, and casing there is no swing, also can say, swing very littlely, minimum for mill 3 centers and emery wheel misalignment, can think that the requirement that still meets grinding spring meets the position requirement of unloading spring when mill 3 is shown in other words.Design advantage is like this, 1, can select price low and control simple common electric machine, when needing only at electric motor starting or stopping, be set in the position that mill 3 swung in or showed stop, utilize A, C, O in the time of same straight line, spring grinding force causes the resultant moment that promotes gear housing swing, cannot promote casing and swing this technical characterictic, thereby while having guaranteed grinding spring, the position that mill 3 needs.2, on rotating disk 73, be provided with all different 4 pin holes of radius size, radius size all differs 0.2mm, so that mill 3 is while swinging between two emery wheels, when two slide block axle 54 axial lines of the mobile combined mechanism 5 of adjustment swing and two slide axle 53 axial line conllinear, mill 3 center lines overlap substantially with emery wheel center line.Design does not need to regulate continuously pivot angle size mechanism like this, and can meet instructions for use.Simple in structure, reduce manufacturing cost.
Five, MECHANISM PRECISION retentivity length and good stability: because be all provided with U-shaped spring pad 29 on the cycle surface of the taper roll bearing 28 of supporting grinding wheel spindle, U-shaped spring pad 29 is equivalent to axially can be out of shape, and has again the spring of large elastic stiffness.Design advantage is in the time that mechanism installs like this, after taper roll bearing 28 magnitudes of interference regulate, mechanism in use, because taper roll bearing 28 will wear and tear certainly, in order to keep the original magnitude of interference of taper roll bearing 28, so move axially auto-compensation bearing wear amount by U-shaped spring pad 29 housing washers, thereby reach the object of the self-aligning bearing magnitude of interference.Thereby there is the long and good stability feature of MECHANISM PRECISION retentivity.
Above are only specific embodiment of the utility model, but design concept of the present utility model is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the utility model, all should belong to the behavior of invading the utility model protection domain.
Claims (9)
1. a spring grinding mechanism, is characterized in that: comprise emery wheel, and lower grinding wheel, mill, described mill is between upper emery wheel and lower grinding wheel; At least one is made up of described upper emery wheel or lower grinding wheel interior emery wheel and outer emery wheel, and interior emery wheel overlaps outside in emery wheel; Described interior emery wheel or outer emery wheel drive by transmission mechanism, the direction of rotation of interior emery wheel and outer emery wheel.
2. a kind of spring grinding mechanism according to claim 1, it is characterized in that: described mill is connected with the mobile combined mechanism of swing, the mobile combined mechanism of described swing comprises the worm screw being connected with motor linkage, worm screw both sides are provided with two worm gears, described worm gear and slide axle are connected, on described slide axle, be provided with slide block axle, described slide block axle and connecting rod A are connected, and described connecting rod A is connected with mill; Slide block axle axial line and slide axle axial line distance can regulate.
3. a kind of spring grinding mechanism according to claim 2, is characterized in that: in the mobile combined mechanism of described swing, be provided with bearing, described bearing is connected by connecting rod B and rotating disk, one end of connecting rod B is by being arranged on disk edge pivot pin.
4. a kind of spring grinding mechanism according to claim 3, is characterized in that: described transmission mechanism comprises the belt pulley with motor linkage, the grinding wheel spindle that can rotate with belt pulley, and described grinding wheel spindle is fixedly connected with interior emery wheel or outer emery wheel.
5. a kind of spring grinding mechanism according to claim 4, it is characterized in that: the interior grinding wheel spindle sleeve of described interior emery wheel is combined in the outer grinding wheel spindle of outer emery wheel, between them, be provided with taper roll bearing, outer grinding wheel spindle is arranged in bearing sleeve, between bearing sleeve and outer grinding wheel spindle, be also provided with taper roll bearing, on the cycle surface of taper roll bearing, be all provided with U-shaped spring pad, described U-shaped spring pad and taper roll bearing contact-making surface are arc.
6. a kind of spring grinding mechanism according to claim 5, it is characterized in that: described upper emery wheel is connected by upper coupling and lower coupler and motor shaft, between upper coupling and lower coupler, be provided with shaft coupling sheet, on described shaft coupling sheet limit, offer the breach of four deciles.
7. a kind of spring grinding mechanism according to claim 1, is characterized in that: described upper emery wheel is made up of interior emery wheel and outer emery wheel, lower grinding wheel is integral type structure.
8. a kind of spring grinding mechanism according to claim 1, is characterized in that: described lower grinding wheel is made up of interior emery wheel and outer emery wheel, upper emery wheel is integral type structure.
9. a kind of spring grinding mechanism according to claim 1, it is characterized in that: described lower grinding wheel and upper emery wheel are all by being made up of interior emery wheel and outer emery wheel, under this structure situation, two interior emery wheel rotation directions are identical, two outer emery wheel rotation directions are also identical, but inside and outside emery wheel direction of rotation.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892681.8U CN203696674U (en) | 2013-12-31 | 2013-12-31 | Spring grinding mechanism |
| PCT/CN2014/078069 WO2015100922A1 (en) | 2013-12-31 | 2014-05-22 | Method for grinding spring with high quality and high efficiency |
| JP2016543031A JP6214774B2 (en) | 2013-12-31 | 2014-05-22 | High quality and high efficiency spring grinding method |
| EP14876702.3A EP3075491B1 (en) | 2013-12-31 | 2014-05-22 | Method for grinding spring with high quality and high efficiency |
| US15/187,783 US9498864B2 (en) | 2013-12-31 | 2016-06-21 | Method for grinding spring with high quality and high efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320892681.8U CN203696674U (en) | 2013-12-31 | 2013-12-31 | Spring grinding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203696674U true CN203696674U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320892681.8U Withdrawn - After Issue CN203696674U (en) | 2013-12-31 | 2013-12-31 | Spring grinding mechanism |
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| CN (1) | CN203696674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786081A (en) * | 2013-12-31 | 2014-05-14 | 绍兴市家度弹簧机械有限公司 | Spring grinding mechanism |
-
2013
- 2013-12-31 CN CN201320892681.8U patent/CN203696674U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103786081A (en) * | 2013-12-31 | 2014-05-14 | 绍兴市家度弹簧机械有限公司 | Spring grinding mechanism |
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