CN103786076B - High-quality and efficient spring grinding method - Google Patents

High-quality and efficient spring grinding method Download PDF

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Publication number
CN103786076B
CN103786076B CN201310753809.7A CN201310753809A CN103786076B CN 103786076 B CN103786076 B CN 103786076B CN 201310753809 A CN201310753809 A CN 201310753809A CN 103786076 B CN103786076 B CN 103786076B
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China
Prior art keywords
emery wheel
grinding
spring
wheel
grinding wheel
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CN201310753809.7A
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CN103786076A (en
Inventor
俞家林
俞度
黄花丽
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SHAOXING SPRING HOME DEGREES MACHINERY CO Ltd
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SHAOXING SPRING HOME DEGREES MACHINERY CO Ltd
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Priority to CN201310753809.7A priority Critical patent/CN103786076B/en
Publication of CN103786076A publication Critical patent/CN103786076A/en
Priority claimed from EP14876702.3A external-priority patent/EP3075491B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10Single-purpose machines or devices
    • B24B7/16Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/17Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10Single-purpose machines or devices
    • B24B7/16Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/162Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for mass articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10Single-purpose machines or devices
    • B24B7/16Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
    • B24B7/167Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings end faces coil springs

Abstract

The invention relates to the field of spring grinding, in particular to a high-quality and efficient spring grinding method. The method includes: at least one of an upper grinding wheel and a lower grinding wheel comprises an inner grinding wheel and an outer grinding wheel, wherein the inner grinding wheel sleeves the outer grinding wheel, the inner grinding wheel and the outer grinding wheel are driven through a transmission mechanism, and the rotation directions of the inner grinding wheel and the outer grinding wheel are opposite; when the whole spring is fed between the upper grinding wheel and the lower grinding wheel, the whole spring reciprocates on a grinding wheel plane; the upper grinding wheel moves downwards, the two end faces of the spring are ground by the grinding wheels, and the upper grinding wheel stops moving downwardly when the spring grinding height meets the requirement and returns to the starting point later on; the whole spring then stops moving and is moved out of the two grinding wheels, namely the whole spring is discharged. By the method, the spring is ground under self-rotation, and the quality and yield of ground springs can be increased energy saving, environmental protection and low grinding cost, simple structure, low part manufacturing cost, long mechanism precision retaining ability and good stability are achieved.

Description

A kind of spring high quality and high efficiency method for grinding
Technical field
The present invention relates to spring grinding field, refer in particular to a kind of spring high quality and high efficiency method for grinding.
Background technology
At present, numerical control spring grinding machine Double End spring grinding machine basic system illustrates to see figure as shown in Figure 1, Figure 2, this structure is upper emery wheel 01st, lower grinding wheel 02, upper emery wheel 01 can move up and down, and the mill 03 of spring 04, mill 03 dead axle are laid in setting between two abrasive wheel end faces Rotate, basic functional principle is: mill 03 fixed-axis rotation, and the spring 04 on mill 03 is rotated drive by mill 03, enter from a point Between two abrasive wheel end faces, reach at c point through b point, spring 04 continues by mill 03 rotational band between two abrasive wheel end faces out Dynamic, reach at a point through d point at c point, so circulation is gone down, and spring 04 is driven in whole process by mill 03, upper emery wheel again 01 moves down at leisure, and spring 04 both ends of the surface between two abrasive wheel end faces are ground, when upper emery wheel 01 is moved down into grinding During spring 04 length requirement, stop moving, then return to starting point, mill 03 is also slowly rotated with, this is operator by bullet Spring door is opened, and then the spring 04 of milled spills through spring doorway one by one, after spring 04 is unsnatched, closes single or double acting door.Bullet Spring 04 is put on mill 03, can carry out next mill again and cut.
This operation principle has the disadvantages that
Generally 60 ° -70 ° of first, β angle, during moving down, on mill, a point spring is from a point for the above emery wheel of institute Reach the c point time through b point, only mill rotates the 17% about of lap time.Therefore, three aspect consequences are so produced: 1), whole disk spring only has 17% about grinding in plane of grinding wheel simultaneously, low production efficiency.2), each spring amount of being ground only has Mill rotates the 17% of the upper emery wheel amount of moving down of a circle, also 83% amount of movement, and spring reality, outside emery wheel, is not ground Cut, this is irrational, this irrational consequence is because unexpected stock removal is very big at emery wheel a point, thus wear and tear very at a point Hurry up, wear and tear at b point slow, c point does not participate in grinding substantially.So last abrasive wheel end face shape is changed into truncated cone-shaped, such as Fig. 3, seriously Have impact on vertical precision during spring grinding.3) when, because of two wheel grindings, only with mill overlapping positions stress, and sand At wheel a point, stock removal is very big, and that is, main grinding force is local at this, and the axial direction of the axial thrust load synthesis of above-mentioned grinding force is made a concerted effort, Away from emery wheel shaft centre line, therefore, grinding wheel spindle and abrasive disc will bear big moment of flexure, thus creating big geometry deformation, right Become apparent from regrinding spring, had a strong impact on spring grinding accuracy.
Second, due to during grinding, because emery wheel is uneven, spring end face is really not orthogonal to the plane of axle of spring, therefore bullet Spring a point can not cause rotation to the whole grinding process of c point, and therefore after grinding, spring precision is not high.
Finally, because the magnitude of interference of the bearing supporting grinding wheel spindle in current spring grinding machine does not have self-regulation structure.So being After what equipment is using a period of time, precision and stability horse back can decline.In order that spring grinding accuracy and stability not under Fall, it is often necessary to high professional qualification employee, adjusts the magnitude of interference of bearing by hand.So not only this skilled worker's difficulty is looked for, and adjustment axis The magnitude of interference holding is also pretty troublesome.
In a word, no matter for quality after device structure and mill spring, or for grinding production efficiency.At present, numerical control The operation principle of spring grinding machine and structure are required for innovating.
For this reason, the present inventor makes further research, have developed a kind of spring high quality and high efficiency method for grinding, this case by This produces.
Content of the invention
It is an object of the invention to provide a kind of spring high quality and high efficiency method for grinding, it is possible to increase the matter of grinding spring Amount and yield, energy-conserving and environment-protective and grinding low cost, part manufacturing cost is low, MECHANISM PRECISION retentivity length and good stability.
To achieve these goals, technical scheme is as follows:
A kind of spring high quality and high efficiency method for grinding, comprises the steps:
First by upper and lower emery wheel, at least one is set to be made up of interior emery wheel and outer emery wheel, and wherein interior emery wheel covers in outer sand In wheel;Described interior emery wheel or outer emery wheel are driven by transmission mechanism, and the rotation direction of interior emery wheel and outer emery wheel is contrary;Whole disk spring In feeding between emery wheel and lower grinding wheel after, whole disk spring moves back and forth in plane of grinding wheel;Emery wheel feeding simultaneously, spring is ground Good, emery wheel is return again;Then, whole mill spring stops mobile and removes between two emery wheels, finally lays down whole disk spring.
Further, described spring moves back and forth in plane of grinding wheel is to be realized by swinging mobile combined mechanism, including The worm screw being connected with motor linkage, worm screw both sides are provided with two worm gears, and described worm gear is connected with slide axle, described cunning It is provided with slide block axle, described slide block axle is connected with connecting rod a, and described connecting rod a is connected with mill, described mill on seat axle Spring-loaded in disk, slide block axle axial line and slide axle axial line distance can be adjusted.
Further, two slide axles of the mobile combined mechanism of described swing are to be driven by two worm gears, two worm gears By same worm-drive;Or two slide axles of the mobile combined mechanism of described swing are by two gear drivens, gear By same tooth through-drive.
Further, described upper emery wheel is made up of interior emery wheel and outer emery wheel, and lower grinding wheel is integral type structure;Or under described Emery wheel is made up of interior emery wheel and outer emery wheel, and upper emery wheel is integral type structure;And or described lower grinding wheel and upper emery wheel have by interior Emery wheel and outer emery wheel composition, under this structure situation, two interior emery wheel rotation directions are identical, two outer emery wheel rotation direction also phases With, but inside and outside emery wheel rotation direction is contrary.
Further, described whole disk spring is sent into above between emery wheel and lower grinding wheel, is to be sent by swinging mobile combined mechanism Enter, the mobile combined mechanism of described swing includes being provided with bearing, and described bearing is connected with rotating disk by connecting rod b, even One end of bar b is arranged on disk edge by pivot pin.
Further, described transmission mechanism includes the belt pulley with motor linkage, can be with the grinding wheel spindle of pulley rotation, institute The grinding wheel spindle stated 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, is provided with circle between them Taper roller bearing, outer grinding wheel spindle is arranged in bearing sleeve, is also equipped with taper roller axle between bearing sleeve and outer grinding wheel spindle Hold, the cycle surface of taper roll bearing is both provided with u-shaped spring pad, described u-shaped spring pad and taper roll bearing connect Contacting surface is arc.
Further, described upper emery wheel is connected with motor shaft by upper coupling and lower coupler, upper coupling and It is provided with shaft coupling piece between lower coupler, described shaft coupling piece side offers the breach of the quartering.
After such scheme, the present invention compared with prior art, has the advantage that
First, production efficiency is high: because: first, the grinding all in plane of grinding wheel simultaneously of whole disk spring.Secondly because at least It is made up of inside and outside emery wheel one piece of emery wheel, and direction of rotation is contrary, so spring can be in grinding under autorotation.Cause And, large inflow grinding can be adopted.So production efficiency is 2 times of current numerical control grinding coiling machine.
2nd, grinding perpendicularity high precision and stability are high;1st, because spring comes in plane of grinding wheel at the inside and outside footpath of emery wheel Return is dynamic, so each spring of grinding all participated in by every, emery wheel, and suffered stock removal is same, therefore emery wheel uniform wear, from And improve grinding accuracy and stability.2nd, because at least 1 piece emery wheel is made up of inside and outside emery wheel, spring energy rotation Grinding under state.
Finally, due to mechanism includes the mechanism of above-mentioned 2 points of technical characteristics combination, this 2 points of technical characteristic combinations are formed New technical characteristic --- --- achieves on spring end face at every, and all by emery wheel every point grinding, abrasion of grinding wheel is especially uniform, from New emery wheel starts to be finished to emery wheel, and without mowing emery wheel, plane of grinding wheel remains high flatness.Therefore, it is greatly enhanced Grinding perpendicularity precision and stability
3rd, energy-conserving and environment-protective and grinding low cost: 1, power consumption is low: because being rotation during spring grinding, spring end face grinding When grain direction be continually changing, grinding skin rapid heat dissipation, be difficult heat build-up, thus spring be not easy to burn, also easily grinding, institute Also low with power consumption.2nd, working environment and grinding low cost are improved: because spring is in grinding, abrasion of grinding wheel is especially uniform, Start to emery wheel to be finished from new emery wheel, without mowing emery wheel.So solve current numerical control spring grinding machine grinding steel wire diameter 3mm with On spring, need the troublesome problem of moment mowing emery wheel.Thus improve emery wheel utilization rate, improve operator's building ring Border, reduces grinding cost simultaneously.
4th, structure is simple, low cost of manufacture: mill is arranged on the connecting rod swinging mobile combined mechanism, whole disk Spring Pendulum Enter and show between two abrasive wheel end faces, be to rely on to swing bearing (bearing is arranged on gear housing lower plane) in mobile combined mechanism, Bearing is connected with rotating disk by connecting rod b, and one end of connecting rod b is by being arranged on disk edge pivot pin.Reducing motor rotates, and leads to Cross output shaft and flat key drives rotating disk to rotate, make connecting rod b do plane motion by pivot pin bearing, the tooth with balance staff as center of rotation Wheel casing (gear housing is arranged on balance staff) swing back and forth, thus achieve whole disk spring swing in show two abrasive wheel end faces it Between purpose.During design, as long as mill swings in, shows dwell point, it is just connecting rod a, c point and center of turntable o'clock in a straight line On.So, connecting rod a point turns to a or c point vicinity with rotating disk, casing there is no swing it may also be said to, swing very Little very little, that is, for mill center and emery wheel center deviation minimum it is believed that still meeting the requirement of grinding spring in other words Status requirement at spring is unloaded, such design advantage is when showing, 1, can be low and control simple common electric machine from price, only To be set in the position that mill swings in or shows stop in electric motor starting or stopping, using a, c, o in same straight line When, promote the resultant moment of gear housing swing it is impossible to promote casing to swing this technical characteristic because spring grinding force causes, thus When ensure that grinding spring, the position that mill needs.The 2nd, all different 4 pin holes of radius size are provided with rotating disk, half Footpath size all differs 0.2mm, and when swinging between two emery wheels in order to mill, adjustment swings two slide blocks of mobile combined mechanism When axle axial line is conllinear with the slide axle axial line that respectively matches, mill center line is essentially coincided with emery wheel center line, so designs not Need to continuously adjust pivot angle size mechanism, and use requirement can be met.Structure is simple, reduces manufacturing cost.
5th, MECHANISM PRECISION retentivity length and good stability: because the cycle surface of the taper roll bearing of supporting grinding wheel spindle On be both provided with u-shaped spring pad, u-shaped spring pad is equivalent to and axially can deform, and has the spring of big elastic stiffness again.So design Advantage is when mechanism installs, after the taper roll bearing magnitude of interference regulates, mechanism in use because taper roller axle Hold certainly to be worn and torn, in order to keep the original magnitude of interference of taper roll bearing, so by u-shaped spring pad housing washer axle Automatically compensate bearing wear amount to mobile, thus reaching the purpose of the self-aligning bearing magnitude of interference.Thus there is MECHANISM PRECISION and protect Holding property length and good stability feature.
Brief description
Fig. 1 is existing numerical control spring grinding machine structure schematic diagram;
Fig. 2 is the a-a direction view of Fig. 1;
Fig. 3 is the k-k of Fig. 2 to revolved view;
Fig. 4 is present configuration schematic diagram;
Fig. 5 is Fig. 4 b-b to schematic diagram;
Fig. 6 is the schematic diagram of u-shaped spring pad;
Fig. 7 is Fig. 5 c-c to schematic diagram;
Fig. 8 is the schematic diagram of shaft coupling piece.
Description of reference numerals:
Upper emery wheel 1, lower grinding wheel 2, interior emery wheel 21, interior grinding wheel spindle 22, endothelium belt wheel 23, outer emery wheel 24, outer grinding wheel spindle 25, outward Belt pulley 26, bearing sleeve 27, taper roll bearing 28, u-shaped spring pad 29, mill 3, spring 4, swing 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 piece 63, bearing 71, connecting rod b72, rotating disk 73, balance staff 8.
Specific embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
As illustrated, a kind of spring method for grinding of present invention announcement and its mechanism, including upper emery wheel 1, lower grinding wheel 2, institute At least one is made up of interior emery wheel 21 and outer emery wheel 24 to state upper and lower emery wheel 2, and in the present embodiment, in selection, emery wheel 1 is 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 dimension is slightly less than outer emery wheel 24 internal diameter size, 21 sets of interior emery wheel is in outer emery wheel 24.Interior emery wheel 21 is contrary with outer emery wheel 24 direction of rotation, outer emery wheel 24 and upper emery wheel 1 side of rotation To identical, upper emery wheel 1 external diameter as outer emery wheel 24 outside dimension, upper emery wheel 1 internal diameter as interior emery wheel 21 size, lower grinding wheel It is mounted with pallet in 2 endoporus, when passing in and out between two emery wheels for spring, hold spring.
Mill 3 is arranged on the connecting rod swinging mobile combined mechanism 5, spring-loaded on described mill 3.Whole disk spring 4 Swing in and show between two abrasive wheel end faces, be 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) it is connected with rotating disk 73 by connecting rod b72, connecting rod b72 One end by being arranged on rotating disk 73 edge pivot pin.During use, reducing motor rotates, and drives rotating disk 73 by output shaft and flat key Rotate, make connecting rod b72 do plane motion by pivot pin bearing, the gear housing with balance staff 8 as center of rotation (install by gear housing On balance staff 8) swing back and forth, thus achieve whole disk spring and swing in the purpose shown between two abrasive wheel end faces.During design, only Want mill 3 to swing in, show dwell point, be just connecting rod a55, c point and rotating disk 73 central point o in a straight line, then, connecting rod A55 point turns to a point or c point vicinity with rotating disk 73, casing there is no swing it may also be said to, swing very little very little, I.e. for mill 3 center and emery wheel center deviation minimum it is believed that the requirement still meeting grinding spring is shown in other words Unload status requirement at spring.So design advantage is, 1, can from price low and control simple common electric machine, as long as in electricity When machine starts or stops, it is set in the position that mill 3 swings in or shows stop, using a, c, o in same straight line, because Spring grinding force causes the resultant moment promoting gear housing swing it is impossible to promote casing to swing this technical characteristic, thus ensureing During grinding spring, the position that mill 3 needs.The 2nd, all different 4 pin holes of radius size, radius are provided with rotating disk 73 Size all differs 0.2mm, and when swinging between two emery wheels in order to mill 3, adjustment swings two slide blocks of mobile combined mechanism 5 When axle 54 axial line is conllinear with slide axle 53 axial line matching, mill 3 center line and emery wheel center line essentially coincide, so Design does not need to continuously adjust pivot angle size mechanism, and can meet use requirement.Structure is simple, reduces manufacturing cost.
It is to include joining with motor by swinging mobile combined mechanism 5 that described whole mill spring moves back and forth in plane of grinding wheel The worm screw 51 being dynamically connected, worm screw 51 both sides are provided with two worm gears 52, and described worm gear 52 is connected with slide axle 53, described Slide axle 53 on be provided with slide block axle 54, described slide block axle 54 is connected with connecting rod a55, two slide block axles 54 and connecting rod connection After dynamic, two slide block axle 54 distance is connected with mill 3 apart from equal, described connecting rod a55 with two slide axles 53, described mill 3 Interior spring-loaded.During mechanism's mounting and adjusting, when slide block axle 54 axial line and slide axle 53 axial line overlap, mill 3 center of circle with Emery wheel rotation centerline is consistent.Before grinding spring, according to spring parameter regulation, general adjusting slider axle 54 axial line and slide axle 53 axial lines are misaligned, and axle center distance between the two is exactly crank length, and during regulation, two crank lengths must be the same.Work When, the rotation of motor makes worm screw 51 also rotate, and worm screw 51 drives two worm gear 52 axle rotating in same directions, two with slide axle 53 cooperation Slide block axle 54 eccentric rotary, thus making translational motion with the connecting rod of two slide block axle 54 linkage, such mill 3 all makees radius at every For the circle of crank length, spring rotation centerline similarly makees the circle that radius is crank length.Therefore, implement spring grinding When, whole mill spring moves back and forth in plane of grinding wheel.
Described upper emery wheel 1 is connected with motor shaft by upper coupling 61 and lower coupler 62, upper coupling 61 He It is provided with shaft coupling piece 63 between lower coupler 62, described shaft coupling piece 63 side offers the breach of the quartering.See Fig. 8, so Design advantage is: first, it is simple to connection installed by motor, because of the decentraction of motor shaft and grinding wheel spindle, and will not produce vibration, part The problem of Fast Wearing.Secondly, stress performance is good, and in transmission process, a and c groove institute stress is equal, in opposite direction, is equivalent to It is a turning pair to axle center.In the same manner, b and d groove institute stress is also equal, and direction is also contrary, and being equivalent to axle center is also one Individual couple.They are the contrary couple of effect both direction at grade.Therefore, during shaft coupling piece 63 is not rotated Turning torque on plan for the heart line, unlike cross slider type coupling, has turning torque.Therefore, this shaft coupling piece 63 Stress performance is good, and transmission efficiency is high, and in unit volume, transmission power is big.For this reason, shaft coupling piece 63 axial dimension can be made very small, outward Footpath can also accordingly be done little.Finally, actual rotation inertia is little, energy high-speed drive, i.e. the direct joint transmission of motor, efficiency high, the longevity Life length.
Interior grinding wheel spindle 22 fit of described interior emery wheel 21, in the outer grinding wheel spindle 25 of outer emery wheel 24, is provided with circle between them Taper roller bearing 28.Interior emery wheel 21 drives interior grinding wheel spindle 22 to rotate by endothelium belt wheel 23, and outer grinding wheel spindle 25 is arranged on outer belt In wheel 27, its rotating manner in the same manner, is also equipped with taper roll bearing 28 between exterior belt pulley 27 and outer grinding wheel spindle 25.Circular cone rolls It is additionally provided with u-shaped spring pad 29 on the cycle surface of sub- bearing 28.First, u-shaped spring pad 29 external diameter machined groove and groove Bottom is designed to circular arc type.When so design advantage is that the magnitude of interference is adjusted, u-shaped spring pad 29 can have certain deflection, have again Big elastic stiffness, and when taper roll bearing 28 magnitude of interference automatically adjusts, spring force change can be less.Bottom land is designed to Circular arc, it is to avoid stress concentration and hardening flaw produce.Improve processing technology simultaneously.Secondly, u shape spring and exterior belt pulley 27 and taper roll bearing 28 contact surface, it is not designed to plane contact, and be designed to great circle arc shape contact (see Fig. 6), because u Shape spring pad, in practical application, is deformation.In other words, its end with exterior belt pulley 27 and taper roll bearing 28 actual Face contact form, not designing is just plane contact form.So adopting great circle arc shape, make into linear contact lay, contact line It is a circle, can accurately calculate the practical problems such as its contact stress, strain.
The operation principle of the application is that upper and lower emery wheel 2 rotates, and whole disk spring swings between two abrasive wheel end faces, then spring Rotation centerline is swinging under mobile combined mechanism 5 drives, and makees Circular test and move on abrasive wheel end face, when upper emery wheel 1 is to moving down When dynamic, both ends of the spring face under spring autorotation by wheel grinding, when being ground to its length requirement and reaching, upper emery wheel 1 Stopping moves down, and after a while, is back to starting point, and mill 3 stops moving, and swings mobile combined mechanism 5 and whole disk Spring Pendulum shakes out Between wheel, that is, lay down whole disk spring.If wanting next disk spring of grinding, then, operator puts into spring in mill 3, then presses one Lower start button, computer can carry out grinding by original program again.
This Principle of Grinding and Cutting has the technical effect that
Firstth, production efficiency is high: 1, because the grinding all in plane of grinding wheel simultaneously of whole disk spring.2nd, because of at least one piece Emery wheel is made up of inside and outside emery wheel 24, and direction of rotation is contrary, so spring can be in grinding under autorotation.Thus, can With using large inflow grinding.Therefore, production efficiency is 2 times of current numerical control spring grinding machine.
Secondth, grinding accuracy is high with stability: 1, because the suffered stock removal of every, emery wheel is the same, and spring pivot Line motion track is a circle, and radius of circle can be adjusted, and on mill 3, a series of circle of spring rotation centerline compositions, is adjusted to bullet When spring is mobile, mean diameter of coil can just be tangent with the external diameter of lower grinding wheel 2 or internal diameter, and every, such emery wheel can each bullet of grinding Spring.Therefore abrasion of grinding wheel is uniform, so improve spring grinding accuracy.2nd, because spring energy rotation grinding, due under inside and outside sand Take turns 24 direction of rotation different, the following inside and outside emery wheel 24 of institute is in opposite direction to spring grinding force, if lower interior emery wheel 21 outer diameter ruler The very little half deducting lower interior emery wheel 21 internal diameter size numerical value deducts lower outer emery wheel 24 internal diameter size with lower outer emery wheel 24 outside dimension The half of numerical value is identical, and during less than 2 times of mean diameter of coil, no matter spring so moves in plane of grinding wheel, lower interior emery wheel 21 There is spring end face to be ground in plane, lower outer emery wheel 24 plane also has spring end face to be ground.In emery wheel 21 plane in lower Grinding force suffered by spring in the plane corresponding with upper emery wheel 1 of grinding force suffered by spring is equal, in opposite direction, and they are to spring certainly Turning resultant moment is zero.Suffered by the spring in the plane corresponding with upper emery wheel 1 of grinding force suffered by spring in lower outer emery wheel 24 plane Grinding force is equal, and direction is identical, and they are more than zero to spring rotation resultant moment.As long as rationally, spring all the time finally for design parameter There is resultant moment energy push the spring rotation.It is thereby achieved that spring grinding under autorotation.
Finally, due to the mechanism of the mechanism combination that comprises above-mentioned 2 points of technical characteristics ----achieve every on spring end face , all by the every point grinding of emery wheel, abrasion of grinding wheel is especially uniform, starts to emery wheel to be finished from new emery wheel, without mowing emery wheel, emery wheel for point Plane remains high flatness.Therefore, spring grinding vertical precision and stability are substantially increased.
3rd, energy-conserving and environment-protective and grinding low cost: 1, power consumption is low: because being rotation during spring grinding, spring end face grinds Grain direction when cutting is continually changing, grinding skin rapid heat dissipation, is difficult heat build-up, thus spring is not easy to burn, also easily grinding, So power consumption is also low.2nd, working environment and grinding low cost are improved: because spring, in grinding, starts to sand from new emery wheel Wheel is finished, without mowing emery wheel.So solving the spring of more than current numerical control spring grinding machine grinding steel wire diameter 3mm, when needing Carve the troublesome problem of mowing emery wheel.Thus improve emery wheel utilization rate, improving operator's working environment, meanwhile, reducing mill It is whittled into this.
4th, structure is simple, low cost of manufacture: mill 3 is arranged on the connecting rod swinging mobile combined mechanism 5, whole disk bullet Spring swings in be shown between two abrasive wheel end faces, is 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 with rotating disk 73 by connecting rod b72, and one end of connecting rod b72 is by being arranged on rotating disk 73 edge Pivot pin.Reducing motor rotates, and drives rotating disk 73 to rotate by output shaft and flat key, makes connecting rod b72 do plane by pivot pin bearing Motion, the gear housing (gear housing is arranged on balance staff 8) with balance staff 8 as center of rotation swings back and forth, and thus achieves Whole disk spring swings in the purpose shown between two abrasive wheel end faces.During design, as long as mill 3 swings in, shows dwell point, it is just even Bar a55, c point and rotating disk 73 central point are in a straight line, then, connecting rod a55 point turns to a point and c point vicinity with rotating disk 73, Casing there is no swing it may also be said to, swing very little, that is, minimum with emery wheel center deviation for mill 3 center, can recognize Requirement for still meeting grinding spring meets requirement at the position unloading spring when mill 3 is shown in other words.So design advantage Be, 1, can from price low and control simple common electric machine, as long as in electric motor starting or stopping, being set in mill 3 Swing in or show the position of stop, using a, c, o in same straight line, spring grinding force causes promotion gear housing to swing Resultant moment it is impossible to promote casing to swing this technical characteristic, thus when ensure that grinding spring, the position that mill 3 needs.2nd, turn All different 4 pin holes of radius size are provided with disk 73, radius size all differs 0.2mm, swings in two in order to mill 3 When between emery wheel, when two slide block axle 54 axial line of the mobile combined mechanism 5 of adjustment swing and two slide axle 53 axial line are conllinear, mill Disk 3 center line and emery wheel center line essentially coincide.So design does not need to continuously adjust pivot angle size mechanism, and can meet and make With requiring.Structure is simple, reduces manufacturing cost.
5th, MECHANISM PRECISION retentivity length and good stability: because the outer ring of the taper roll bearing 28 of supporting grinding wheel spindle U-shaped spring pad 29 is all provided with end face, u-shaped spring pad 29 is equivalent to and axially can deform, and has the spring of big elastic stiffness again. So design advantage is when mechanism installs, after taper roll bearing 28 magnitude of interference regulates, mechanism in use because Taper roll bearing 28 is certainly to be worn and torn, in order to keep the original magnitude of interference of taper roll bearing 28, so by u-shaped spring pad 29 housing washer axial movements compensate bearing wear amount, automatically thus reaching the purpose of the self-aligning bearing magnitude of interference.Cause And there is MECHANISM PRECISION retentivity length and good stability feature.
Above are only the specific embodiment of the present invention, but the design concept of the present invention be not limited thereto, all using this structure Think the present invention is carried out with the change of unsubstantiality, the behavior invading the scope of the present invention all should be belonged to.

Claims (3)

1. a kind of spring high quality and high efficiency method for grinding, comprises the steps:
First by upper and lower emery wheel, at least one is set to be made up of interior emery wheel and outer emery wheel, and wherein said interior emery wheel is enclosed within described In outer emery wheel, lower interior emery wheel outside dimension deducts the half of lower interior emery wheel internal diameter size numerical value and lower outer emery wheel outside dimension deducts The half of lower outer emery wheel internal diameter size numerical value is identical, and is less than 2 times of mean diameter of coil;Described interior emery wheel or outer emery wheel pass through transmission Mechanism drives, and the rotation direction of interior emery wheel and outer emery wheel is contrary;After whole disk spring is sent into above between emery wheel and lower grinding wheel, whole disk bullet Spring moves back and forth in plane of grinding wheel;Emery wheel feeding simultaneously, spring is return by milled, emery wheel again;Then, whole disk spring stops moving Move and remove between two emery wheels, finally lay down whole disk spring;It is to be moved by swing that described spring moves back and forth in plane of grinding wheel Combined mechanism is realized, and including the worm screw being connected with motor linkage, worm screw both sides are provided with two worm gears, described worm gear and cunning Seat axle is connected, and described slide axle is provided with slide block axle, described slide block axle is connected with connecting rod a, described connecting rod a It is connected with mill, spring-loaded in described mill, slide block axle axial line and slide axle axial line distance can be adjusted;Described Two slide axles swinging mobile combined mechanism are to be driven by two worm gears, and two worm gears are by same worm-drive;Or institute Two slide axles of the mobile combined mechanism of swing stated are that gear is by same tooth through-drive by two gear drivens;Described Upper emery wheel be made up of interior emery wheel and outer emery wheel, lower grinding wheel be integral type structure;Or described lower grinding wheel is by interior emery wheel and outer sand Wheel composition, upper emery wheel is integral type structure;And or described lower grinding wheel and upper emery wheel are formed by by interior emery wheel and outer emery wheel, this Plant under 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 turns Dynamic in opposite direction;It is to be sent into by swinging mobile combined mechanism between emery wheel and lower grinding wheel that described whole disk spring is sent into upper, The mobile combined mechanism of described swing includes being provided with bearing, and described bearing is connected with rotating disk by connecting rod b, connecting rod b's One end is arranged on disk edge by pivot pin;Described transmission mechanism includes the belt pulley with motor linkage, can rotate with belt Dynamic grinding wheel spindle, described grinding wheel spindle is fixedly connected with interior emery wheel or outer emery wheel.
2. a kind of spring high quality and high efficiency method for grinding according to claim 1 it is characterised in that: described interior emery wheel Interior grinding wheel spindle sleeve is combined in the outer grinding wheel spindle of outer emery wheel, is provided with taper roll bearing between them, and outer grinding wheel spindle is arranged on axle In bearing set, it is also equipped with taper roll bearing between bearing sleeve and outer grinding wheel spindle, on the cycle surface of taper roll bearing It is both provided with u-shaped spring pad, described u-shaped spring pad and taper roll bearing contact surface are arc.
3. a kind of spring high quality and high efficiency method for grinding according to claim 2 it is characterised in that: described upper emery wheel It is connected with motor shaft by upper coupling and lower coupler, between upper coupling and lower coupler, be provided with shaft coupling piece, institute The breach of the quartering is offered on the shaft coupling piece side stated.
CN201310753809.7A 2013-12-31 2013-12-31 High-quality and efficient spring grinding method Active CN103786076B (en)

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CN201310753809.7A CN103786076B (en) 2013-12-31 2013-12-31 High-quality and efficient spring grinding method
EP14876702.3A EP3075491B1 (en) 2013-12-31 2014-05-22 Method for grinding spring with high quality and high efficiency
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
US15/187,783 US9498864B2 (en) 2013-12-31 2016-06-21 Method for grinding spring with high quality and high efficiency

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WO2015100922A1 (en) * 2013-12-31 2015-07-09 绍兴市家度弹簧机械有限公司 Method for grinding spring with high quality and high efficiency

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JP2000198068A (en) * 1999-01-07 2000-07-18 Daido Steel Co Ltd Sheet type polishing machine
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CN202742162U (en) * 2012-07-19 2013-02-20 绍兴市家度弹簧机械有限公司 Multifunctional vertical paralled-surface grinding machine
CN203019175U (en) * 2012-12-20 2013-06-26 浙江万能弹簧机械有限公司 Double end face spring grinding machine

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CN101204786A (en) * 2006-12-19 2008-06-25 浙江工业大学 High accuracy ball double autorotation grinding tray high-efficiency grinding device
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Publication number Priority date Publication date Assignee Title
JP2000198068A (en) * 1999-01-07 2000-07-18 Daido Steel Co Ltd Sheet type polishing machine
CN201931333U (en) * 2010-12-02 2011-08-17 嵊州市金狮弹簧机械有限公司 Double-turntable operating table of spring end grinder
CN202742162U (en) * 2012-07-19 2013-02-20 绍兴市家度弹簧机械有限公司 Multifunctional vertical paralled-surface grinding machine
CN203019175U (en) * 2012-12-20 2013-06-26 浙江万能弹簧机械有限公司 Double end face spring grinding machine

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Address after: 312000, No. 4, No. 1437 East Renmin Road, Zhejiang, Shaoxing

Patentee after: ZHEJIANG JIADU SPRING MACHINERY Co.,Ltd.

Address before: The city of Zhejiang province Shaoxing city Beihai Street 312000 Wu Jia TA Cun Shaoxing city of Spring Machinery Co. Ltd.

Patentee before: SHAOXING SPRING HOME DEGREES MACHINERY Co.,Ltd.