CN108655832A - A kind of spring high quality and high efficiency method for grinding - Google Patents

Abstract

The present invention relates to springs to be ground field, refers in particular to a kind of spring high quality and high efficiency method for grinding, includes the following steps：By upper and lower grinding wheel, at least one is set as being made of interior grinding wheel and outer grinding wheel first, wherein interior grinding wheel covers in outer grinding wheel；The interior grinding wheel or outer grinding wheel are driven by transmission mechanism, and the rotation direction of interior grinding wheel and outer grinding wheel is opposite；After whole disk spring is sent between grinding wheel and lower grinding wheel, whole disk spring moves back and forth in plane of grinding wheel；At this moment upper grinding wheel moves down, and both ends of the spring face is by wheel grinding, and when grinding spring heights reach requirement, upper grinding wheel stopping moves down, and later, is back to starting point.Then, whole mill spring stops mobile between two grinding wheels of removal, that is, lays down whole disk spring.After the above method, spring is ground under autorotation, can improve the yield and quality of grinding spring, and energy conservation and environmental protection and grinding are at low cost, and simple in structure, part manufacturing cost is low, and MECHANISM PRECISION retentivity length and stability are good.

Description

A kind of spring high quality and high efficiency method for grinding

Technical field

The present invention relates to springs to be ground field, refers in particular to a kind of spring high quality and high efficiency method for grinding.

Background technology

Currently, the signal of numerical control spring grinding machine Double End spring grinding machine basic system is shown in that figure is as shown in Figure 1, Figure 2, this structure is upper grinding wheel 01, lower grinding wheel 02, upper grinding wheel 01 can move up and down, the mill 03 of setting placement spring 04,03 dead axle of mill between two abrasive wheel end faces Rotation, basic functional principle are：03 fixed-axis rotation of mill, the spring 04 on mill 03 is rotated by mill 03 to be driven, and is entered from a points It between two abrasive wheel end faces, is reached at c points by b points, from out, spring 04 continues to rotate band by mill 03 between two abrasive wheel end faces It is dynamic, it is reached at a points again by d points from c points, cycle is gone down in this way, and spring 04 is driven by mill 03 in whole process, upper grinding wheel 01 moves down at leisure, and 04 both ends of the surface of spring between two abrasive wheel end faces are ground, when upper grinding wheel 01 is moved down into grinding When 04 length requirement of spring, stop movement, 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 passes through spring doorway and leaks out one by one, after spring 04 is unsnatched, closes single or double acting door.Bullet Spring 04 is put on mill 03, and can be carried out next mill and be cut.

This operation principle has the disadvantages that：

First, β angle are generally 60 ° -70 °, or more grinding wheel during moving down, a point springs are from a points on mill C point times, only 17% or so of mill rotation lap time are reached by b points.Therefore, three aspect consequences are generated in this way： 1), whole disk spring only has 17% or so to be ground in plane of grinding wheel simultaneously, low production efficiency.2), the ground amount of each spring Have the 17% of the upper grinding wheel amount of moving down of one circle of mill rotation, also 83% amount of movement, spring is practical outside grinding wheel, not by Grinding, this be it is unreasonable, this unreasonable consequence be because unexpected stock removal is very big at grinding wheel a points, thus at a points abrasion very Soon, it is worn slowly at b points, c points do not participate in grinding substantially.So last abrasive wheel end face shape becomes truncated cone-shaped, such as Fig. 3, seriously Affect vertical precision when spring grinding.3), because when two wheel grindings, only with mill overlapping positions stress, and sand Stock removal is very big at wheel a points, i.e., main grinding force is local at this, the axial resultant force of the axial thrust load synthesis of above-mentioned grinding force, Far from grinding wheel shaft centre line, therefore, grinding wheel spindle and abrasive disc will bear big moment of flexure, right to produce big geometry deformation It is become apparent from regrinding spring, has seriously affected spring grinding accuracy.

Second, because of grinding wheel injustice when due to grinding, spring end face is really not orthogonal to the plane of axle of spring, therefore bullet It cannot cause rotation in spring a points to the entire grinding process of c points, therefore spring precision is not high after grinding.

Finally, because the interference volume of the bearing of bearing grinding wheel spindle does not have self-regulation structure in spring grinding machine at present.So being After a period of use, precision and stability can decline what equipment at once.In order to make spring grinding accuracy and stability not under Drop, it is often necessary to which high professional qualification employee adjusts the interference volume of bearing by hand.Not only this skilled worker's difficulty is looked in this way, and adjustment axis The interference volume held is also pretty troublesome.

No matter in short, after device structure and mill spring for quality, or for grinding production efficiency.Currently, numerical control The operation principle and structure of spring grinding machine are required for innovating.

For this purpose, the present inventor makes further research, have developed a kind of spring high quality and high efficiency method for grinding, this case by This is generated.

Invention content

The purpose of the present invention is to provide a kind of spring high quality and high efficiency method for grinding, can improve the matter of grinding spring Amount and yield, energy conservation and environmental protection and grinding are at low cost, and part manufacturing cost is low, and MECHANISM PRECISION retentivity length and stability are good.

To achieve the goals above, technical scheme is as follows：

A kind of spring high quality and high efficiency method for grinding, includes the following steps：

Be set as being made of interior grinding wheel and outer grinding wheel by upper and lower grinding wheel is at least one first, wherein in grinding wheel cover in outer sand In wheel；The interior grinding wheel or outer grinding wheel are driven by transmission mechanism, and the rotation direction of interior grinding wheel and outer grinding wheel is opposite；Whole disk spring In feeding between grinding wheel and lower grinding wheel after, whole disk spring moves back and forth in plane of grinding wheel；Grinding wheel feeding, spring are ground simultaneously Good, grinding wheel is retracted again；Then, between whole mill spring stops movement and removes two grinding wheels, whole disk spring is finally laid down.

Further, the spring move back and forth in plane of grinding wheel be realized by the mobile combined mechanism of swing, including The worm screw being connect with motor linkage, the setting of worm screw both sides is there are two worm gear, and the worm gear is connected with slide axis, the cunning It is provided with sliding block axis on seat axis, the sliding block axis is connected with connecting rod A, and the connecting rod A is connect with mill, the mill Spring-loaded in disk, sliding block axis axial line and slide axis axial line distance can be adjusted.

Further, two slide axis of the mobile combined mechanism of the swing are driven by two worm gears, two worm gears By same branch worm-drive；Or two slide axis of the mobile combined mechanism of swing are driven by two gears, gear It is driven by same branch tooth shaft.

Further, the upper grinding wheel is made of interior grinding wheel and outer grinding wheel, and lower grinding wheel is an integral structure；Or it is described under Grinding wheel is made of interior grinding wheel and outer grinding wheel, and upper grinding wheel is an integral structure；And or the lower grinding wheel and upper grinding wheel have by interior Grinding wheel and outer grinding wheel composition, under this structure situation, two interior grinding wheel rotation directions are identical, two outer grinding wheel rotation directions also phase Together, but inside and outside grinding wheel rotation direction is opposite.

Further, the whole disk spring is sent into above between grinding wheel and lower grinding wheel, is sent by the mobile combined mechanism of swing Enter, swing movement combined mechanism includes being provided with bearing, and the bearing is connected by connecting rod B with turntable, even One end of bar B is arranged by pivot pin in disk edge.

Further, the 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 grinding wheel or outer grinding wheel.

Further, the interior grinding wheel spindle fitting of the interior grinding wheel is in the outer grinding wheel spindle of outer grinding wheel, is provided with circle between them Taper roller bearing, outer grinding wheel spindle are arranged in bearing sleeve, and taper roller axis is also equipped between bearing sleeve and outer grinding wheel spindle It holds, U-shaped spring pad is both provided on the cycle surface of taper roll bearing, the U-shaped spring pad and taper roll bearing connect Contacting surface is arc.

Further, the upper grinding wheel is connected by upper coupling and lower coupler with motor shaft, upper coupling and It is provided with shaft coupling piece between lower coupler, the notch of the quartering is offered on the shaft coupling piece side.

After adopting the above scheme, compared with prior art, the present invention haing the following advantages：

One, production efficiency is high：Because：First, whole disk spring is all ground in plane of grinding wheel simultaneously.Secondly because at least It is made of inside and outside grinding wheel one piece of grinding wheel, and direction of rotation is on the contrary, so spring can be ground under autorotation.Cause And large inflow grinding may be used.So production efficiency is 2 times or so of current numerical control grinding coiling machine.

Two, grinding verticality precision is high and stability is high；1, because spring comes in plane of grinding wheel at the inside and outside diameter of grinding wheel Return is dynamic, so every, grinding wheel all participates in each spring of grinding, and suffered stock removal is same, therefore grinding wheel uniform wear, from And improve grinding accuracy and stability.2, because at least 1 piece of grinding wheel is made of inside and outside grinding wheel, spring energy rotation It is ground under state.

Finally, due to which mechanism includes the mechanism of above-mentioned 2 technical characteristics combination, this 2 technical characteristics combine to be formed New technical characteristic --- --- realizes on spring end face at every, and all by grinding wheel per point grinding, abrasion of grinding wheel is especially uniform, from New grinding wheel starts to grinding wheel to be finished, and does not have to mowing grinding wheel, and plane of grinding wheel remains high flatness.Therefore, it greatlys improve Grinding verticality precision and stability

Three, energy conservation and environmental protection and grinding are at low cost：1, it consumes energy low：Because spring is rotation when being ground, spring end face grinding When grain direction constantly change, grinding skin rapid heat dissipation is not easy heat build-up, thus spring is not easy to burn, also be easy grinding, institute It is also low with power consumption.2, improve working environment and grinding is at low cost：Because spring is in grinding, abrasion of grinding wheel is especially uniform, It is finished to grinding wheel since new grinding wheel, does not have to mowing grinding wheel.So solve current numerical control spring grinding machine grinding steel wire diameter 3mm with On spring, need the troublesome problem of moment mowing grinding wheel.To improve grinding wheel utilization rate, operator's building ring is improved Border, while reducing grinding cost.

Four, simple in structure, manufacturing cost is low：Mill is mounted on the connecting rod for swinging mobile combined mechanism, whole disk Spring Pendulum Enter between showing two abrasive wheel end faces, be to rely on to swing bearing (bearing is mounted on gear housing lower plane) in mobile combined mechanism, Bearing is connected by connecting rod B with turntable, and one end of connecting rod B is by being arranged in disk edge pivot pin.Decelerating motor rotates, and leads to It crosses output shaft and flat key drives turntable rotation, so that connecting rod B is done plane motion by pivot pin bearing, using balance staff as the tooth of center of rotation Wheel babinet (gear housing be mounted on balance staff on) swings back and forth, it is thus achieved that whole disk spring swing in show two abrasive wheel end faces it Between purpose.Just it is connecting rod A, C point and center of turntable o'clock in a straight line as long as mill swings in, shows dwell point when design On.So, connecting rod A points turn to A C points vicinity with turntable, and babinet there is no swing, it may also be said to, it swings very Small very little, i.e., it is minimum for mill center and grinding wheel center deviation, it is believed that still meet the requirement of grinding spring in other words Status requirement at spring is unloaded when showing, this design advantage is that, 1, price can be selected low and the simple common electric machine of control, only It to be set in the position that mill swung in or showed stop, using A, C, O in same straight line in electric motor starting or stopping When, because spring grinding force causes the resultant moment for pushing gear housing to swing, babinet can not be pushed to swing this technical characteristic, to When ensure that grinding spring, the position of mill needs.2, all different 4 pin holes of radius size are provided on turntable, partly Diameter size all differs 0.2mm or so, and when being swung between two grinding wheels in order to mill, adjustment swings two sliding blocks of mobile combined mechanism When axis axial line is conllinear with each matching slide axis axial line, mill center line is essentially coincided with grinding wheel center line, is designed so not It needs to continuously adjust pivot angle size mechanism, and requirement can be met.It is simple in structure, reduce manufacturing cost.

Five, MECHANISM PRECISION retentivity is long and stability is good：Because supporting the cycle surface of the taper roll bearing of grinding wheel spindle On be both provided with U-shaped spring pad, U-shaped spring pad be equivalent to it is axial can deform, and have the spring of big elastic stiffness.It designs in this way Advantage be when mechanism is installed, after taper roll bearing interference volume regulates, mechanism in use, because of taper roller axis It holds and to be worn certainly, for the interference volume for keeping taper roll bearing original, so by U-shaped spring pad housing washer axis To mobile automatic compensation bearing wear amount, to achieve the purpose that self-aligning bearing interference volume.Thus protected with MECHANISM PRECISION Holding property is grown and the good feature of stability.

Description of the drawings

Fig. 1 is existing numerical control spring grinding machine structure schematic diagram；

Fig. 2 is the A-A direction views of Fig. 1；

Fig. 3 is the K-K of Fig. 2 to revolved view；

Fig. 4 is schematic structural view of the invention；

Fig. 5 is Fig. 4 B-B direction schematic diagrames；

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.

Reference sign：

Upper grinding wheel 1, lower grinding wheel 2, interior grinding wheel 21, interior grinding wheel spindle 22, endothelium belt wheel 23, outer grinding wheel 24, outer grinding wheel spindle 25, outside 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 axis 53, sliding block axis 54, connecting rod A55, upper coupling 61, lower coupler 62, shaft coupling piece 63, bearing 71, connecting rod B72, turntable 73, balance staff 8.

Specific implementation mode

The present invention is further illustrated in the following with reference to the drawings and specific embodiments.

As shown, a kind of spring method for grinding and its mechanism that the present invention discloses, including upper grinding wheel 1, lower grinding wheel 2, institute State that upper and lower grinding wheel 2 is at least one to be made of interior grinding wheel 21 and outer grinding wheel 24, in the present embodiment, grinding wheel 1 is integral type in selection Structure, lower grinding wheel 2 are made of interior grinding wheel 21 and outer grinding wheel 24, and 21 outer diameter of interior grinding wheel is slightly less than 24 internal diameter size of outer grinding wheel, 21 sets of interior grinding wheel is in outer grinding wheel 24.Interior grinding wheel 21 is with 24 direction of rotation of outer grinding wheel on the contrary, outer grinding wheel 24 and 1 side of rotation of upper grinding wheel To identical, 1 outer diameter of upper grinding wheel is as 24 outer diameter of outer grinding wheel, and 1 internal diameter of upper grinding wheel is as 21 size of interior grinding wheel, lower grinding wheel It is mounted with pallet in 2 endoporus, spring is held when between spring two grinding wheels of disengaging.

Mill 3 is mounted on the connecting rod for swinging mobile combined mechanism 5, spring-loaded on the mill 3.Whole disk spring 4 It swings between showing two abrasive wheel end faces, is that (bearing 71 is mounted on gear housing by the bearing 71 swung under mobile combined mechanism 5 Lower plane --- gear-box is the shell for swinging mobile combined mechanism 5) it is connected by connecting rod B72 and turntable 73, connecting rod B72 One end by be arranged in 73 edge pivot pin of turntable.In use, decelerating motor rotates, turntable 73 is driven by output shaft and flat key Rotation, makes connecting rod B72 do plane motion by pivot pin bearing, is gear housing (the gear housing installation of center of rotation with balance staff 8 On balance staff 8) it swings back and forth, it is thus achieved that whole disk spring swings in the purpose shown between two abrasive wheel end faces.When design, only Want mill 3 to swing in, show dwell point, be just connecting rod A55, C point and 73 central point O of turntable in a straight line, then, connecting rod A55 points turn to A points with turntable 73 or C points vicinity, babinet there is no swing, it may also be said to, very little very little is swung, It is i.e. minimum for 3 center of mill and grinding wheel center deviation, it is believed that the requirement for still meeting grinding spring is shown in other words Unload status requirement at spring.This design advantage is that 1, price can be selected low and the simple common electric machine of control, as long as in electricity When machine starts or stops, it is set in the position that mill 3 swung in or showed stop, using A, C, O in same straight line, because Spring grinding force causes the resultant moment for pushing gear housing to swing, and babinet can not be pushed to swing this technical characteristic, to ensure When grinding spring, position that mill 3 needs.2, all different 4 pin holes of radius size, radius are provided on turntable 73 Size all differs 0.2MM or so, and when being swung between two grinding wheels in order to mill 3, adjustment swings two sliding blocks of mobile combined mechanism 5 When 54 axial line of axis is conllinear with matched 53 axial line of slide axis, 3 center line of mill is essentially coincided with grinding wheel center line, in this way Design need not continuously adjust pivot angle size mechanism, and can meet requirement.It is simple in structure, reduce manufacturing cost.

It is that mobile combined mechanism 5 includes and motor joins by swinging that the whole mill spring moves back and forth in plane of grinding wheel The worm screw 51 of dynamic connection, there are two worm gears 52 for the setting of 51 both sides of worm screw, and the worm gear 52 is connected with slide axis 53, described Slide axis 53 on be provided with sliding block axis 54, the sliding block axis 54 is connected with connecting rod A55, and two sliding block axis 54 join with connecting rod After dynamic, two sliding block axis, 54 distance is connect apart from equal, described connecting rod A55 with mill 3 with two slide axis 53, the mill 3 Interior spring-loaded.When mechanism mounting and adjusting, when 54 axial line of sliding block axis and 53 axial line of slide axis overlap, 3 center of circle of mill with Grinding wheel rotation centerline is consistent.Before being ground spring, adjusted according to spring parameter, general 54 axial line of adjusting slider axis and slide axis 53 axial lines are misaligned, and axle center between the two distance is exactly crank length, and two crank lengths must be the same when adjusting.Work When, the rotation of motor makes worm screw 51 also rotate, and worm screw 51 drives two 52 axis of worm gear to rotate in same direction, two coordinated with slide axis 53 54 eccentric rotary of sliding block axis all makees radius at every to make translational motion with the connecting rod of two sliding block axis 54 linkage on such mill 3 For the circle of crank length, spring rotation centerline similarly makees the circle that radius is crank length.Therefore, spring grinding is implemented When, whole mill spring moves back and forth in plane of grinding wheel.

The upper grinding wheel 1 is connected by upper coupling 61 and lower coupler 62 with motor shaft, 61 He of upper coupling It is provided with shaft coupling piece 63 between lower coupler 62, the notch of the quartering is offered on 63 side of shaft coupling piece.See Fig. 8, in this way Design advantage is：First, it is simple to motor installation connection, it will not be because of the decentraction of motor shaft and grinding wheel spindle, and vibration is generated, part The problem of Fast Wearing.Secondly, stress performance is good, and in transmission process, a and c slots institute stress is equal, and direction is on the contrary, be equivalent to It is a turning pair to axis center.Similarly, b and d slots institute stress is also equal, and direction is also on the contrary, it is also one to be equivalent to axis center A couple.They only act on the opposite couple of both direction in the same plane.Therefore, during shaft coupling piece 63 is not rotated Turning torque of the heart line on plan has turning torque unlike cross slider type connector.Therefore, this shaft coupling piece 63 Stress performance is good, and transmission efficiency is high, and it is big that power is transmitted in unit volume.For this purpose, 63 axial dimension of shaft coupling piece can be made very small, outside Diameter can also accordingly do small.Finally, actual rotation inertia is small, energy high-speed drive, the i.e. direct joint transmission of motor, efficient, the longevity Life length.

The interior grinding wheel spindle 22 of the interior grinding wheel 21 is linked in the outer grinding wheel spindle 25 of outer grinding wheel 24, is provided with circle between them Taper roller bearing 28.Interior grinding wheel 21 drives interior grinding wheel spindle 22 to rotate by endothelium belt wheel 23, and outer grinding wheel spindle 25 is arranged in outer belt In wheel 27, rotating manner similarly, is also equipped with taper roll bearing 28 between exterior belt pulley 27 and outer grinding wheel spindle 25.Circular cone rolls U-shaped spring pad 29 is additionally provided on the cycle surface of sub- bearing 28.First, groove and slot be machined on 29 outer diameter of U-shaped spring pad Bottom is designed to circular arc type.This design advantage is that when interference volume is adjusted, U-shaped spring pad 29 can have certain deflection, and have Big elastic stiffness, and when the automatic adjustment of 28 interference volume of taper roll bearing, spring force variation can be smaller.Slot bottom is designed to Circular arc, avoids stress concentration and hardening flaw generates.Improve processing technology simultaneously.Secondly, U-shaped spring and exterior belt pulley 27 and 28 contact surface of taper roll bearing, it is not designed to plane contact, and it is designed to that great circle arc shape contacts (see Fig. 6), because of U Shape spring pad is in practical application, be deformation.In other words, the end of practical it and exterior belt pulley 27 and taper roll bearing 28 Face contact form, it is just plane contact form not design.So using great circle arc shape, make into line contact, contact line It is a circle, the practical problems such as its contact stress, strain can be accurately calculated.

The operation principle of the application is that upper and lower grinding wheel 2 rotates, and whole disk spring is swung between two abrasive wheel end faces, then spring Rotation centerline makees Circular test movement in the case where swinging mobile combined mechanism 5 and driving on abrasive wheel end face, when upper grinding wheel 1 is to moving down When dynamic, both ends of the spring face under spring autorotation by wheel grinding, when being ground to length requirement and reaching, upper grinding wheel 1 Stopping moves down, and later, is back to starting point, and mill 3 stops movement, swings mobile combined mechanism 5 and whole disk Spring Pendulum shakes out Between wheel, that is, lay down whole disk spring.If being ground next disk spring, operator is put into spring in mill 3, then presses one Lower start button, computer can again be carried out being ground by original program.

This Principle of Grinding and Cutting has the technical effect that：

The first, production efficiency is high：1, because whole disk spring is all ground in plane of grinding wheel simultaneously.2, because of at least one piece Grinding wheel is made of inside and outside grinding wheel 24, and direction of rotation is on the contrary, so spring can be ground under autorotation.Thus, it can To be ground using large inflow.Therefore, production efficiency is 2 times of current numerical control spring grinding machine or so.

The second, grinding accuracy and stability are high：1, because the suffered stock removal of every, grinding wheel is the same, and spring rotation center Line motion track is a circle, and radius of circle can be adjusted, and a series of circle of spring rotation centerline compositions, is adjusted to bullet on mill 3 When spring moves, mean diameter of coil can just be tangent with the outer diameter or internal diameter of lower grinding wheel 2, and so every, grinding wheel can be ground each bullet Spring.Therefore abrasion of grinding wheel is uniform, so improving spring grinding accuracy.2, because spring energy rotation is ground, the inside and outside sand due under It is different to take turns 24 direction of rotation, or less inside and outside grinding wheel 24 to spring be ground force direction on the contrary, if lower 21 outer diameter ruler of interior grinding wheel The very little half for subtracting 21 internal diameter size numerical value of lower interior grinding wheel subtracts lower 24 internal diameter size of outer grinding wheel with lower 24 outer diameter of outer grinding wheel The half of numerical value is identical, and less than 2 times of mean diameter of coil when, no matter spring so moves in plane of grinding wheel, lower interior grinding wheel 21 There is spring end face ground in plane, also has spring end face ground in lower 24 plane of outer grinding wheel.In lower in 21 plane of grinding wheel Grinding force is equal suffered by spring in the plane corresponding with upper grinding wheel 1 of grinding force suffered by spring, direction on the contrary, they to spring from It is zero to turn resultant moment.Suffered by spring in grinding force plane corresponding with upper grinding wheel 1 suffered by spring in 24 plane of lower outer grinding wheel Grinding force is equal, and direction is identical, they are more than zero to spring rotation resultant moment.As long as design parameter is reasonable, spring is finally always There is resultant moment energy push the spring rotation.It is thereby achieved that spring is ground under autorotation.

Finally, due to which mechanism includes the mechanism of the combination of above-mentioned 2 technical characteristics ----realize on spring end face often For point all by grinding wheel per point grinding, abrasion of grinding wheel is especially uniform, is finished to grinding wheel since new grinding wheel, does not have to mowing grinding wheel, grinding wheel Plane remains high flatness.Therefore, spring grinding vertical precision and stability are substantially increased.

Third, energy conservation and environmental protection and grinding are at low cost：1, it consumes energy low：Because spring is rotation when being ground, spring end face mill Grain direction when cutting constantly changes, and grinding skin rapid heat dissipation is not easy heat build-up, thus spring is not easy to burn, and is also easy grinding, So power consumption is also low.2, improve working environment and grinding is at low cost：Because spring is in grinding, to sand since new grinding wheel Wheel is finished, and does not have to mowing grinding wheel.So solving the spring of current numerical control spring grinding machine grinding steel wire diameter 3mm or more, when needing Carve the troublesome problem of mowing grinding wheel.To improve grinding wheel utilization rate, operator's working environment is improved, meanwhile, reduce mill It is whittled into this.

4th, simple in structure, manufacturing cost is low：Mill 3 is mounted on the connecting rod for swinging mobile combined mechanism 5, whole disk bullet Spring is swung in show two abrasive wheel end faces between, be that (bearing 71 is mounted on gear housing by bearing 71 in mobile combined mechanism 5 is swung Lower plane), bearing 71 is connected by connecting rod B72 and turntable 73, and one end of connecting rod B72 is by being arranged at 73 edge of turntable Pivot pin.Decelerating motor rotates, and drives turntable 73 to rotate by output shaft and flat key, so that connecting rod B72 is done plane by pivot pin bearing Movement is swung back and forth with balance staff 8 for the gear housing (gear housing is mounted on balance staff 8) of center of rotation, it is thus achieved that Whole disk spring swings in the purpose shown between two abrasive wheel end faces.Just it is to connect as long as mill 3 swings in, shows dwell point when design Bar A55, C point and 73 central point of turntable in a straight line, then, connecting rod A55 points turn to A points and C points vicinity with turntable 73, Babinet there is no swing, it may also be said to, swing very little, i.e., it is minimum for 3 center of mill and grinding wheel center deviation, it can recognize Requirement to still meet grinding spring, which meets in other words at the position for unloading spring when mill 3 is shown, to be required.Such design advantage It is 1, price can be selected low and as long as the simple common electric machine of control is set in mill 3 in electric motor starting or stopping The position for swinging in or showing stop, using A, C, O in same straight line, spring grinding force causes to push gear housing swing Resultant moment can not push babinet to swing this technical characteristic, when to ensure that grinding spring, the position of the needs of mill 3.2, turn All different 4 pin holes of radius size are provided on disk 73, radius size all differs 0.2mm, in order to which mill 3 swings in two When between grinding wheel, when two sliding block axis, 54 axial line of adjustment swing movement combined mechanism 5 is conllinear with two slide axis, 53 axial line, mill 3 center line of disk is essentially coincided with grinding wheel center line.Design need not continuously adjust pivot angle size mechanism in this way, and can meet and make With requiring.It is simple in structure, reduce manufacturing cost.

5th, MECHANISM PRECISION retentivity is long and stability is good：Because supporting the outer ring of the taper roll bearing 28 of grinding wheel spindle U-shaped spring pad 29 is all provided on end face, U-shaped spring pad 29, which is equivalent to, can axially deform, and have the spring of big elastic stiffness. This design advantage is that when mechanism is installed, after 28 interference volume of taper roll bearing regulates, mechanism in use because What taper roll bearing 28 to be worn certainly, for the interference volume for keeping taper roll bearing 28 original, so by U-shaped spring pad The automatic compensation bearing wear amount of 29 housing washers axial movement, to achieve the purpose that self-aligning bearing interference volume.Cause And have the characteristics that MECHANISM PRECISION retentivity length and stability are good.

Specific embodiments of the present invention are above are only, but the design concept of the present invention is not limited thereto, it is all to utilize this structure Think, to the change of present invention progress unsubstantiality, the behavior for invading the scope of the present invention should all be belonged to.

Claims (3)

1. a kind of spring high quality and high efficiency method for grinding, includes the following steps：

Be set as being made of interior grinding wheel and outer grinding wheel by upper and lower grinding wheel is at least one first, wherein the interior grinding wheel be sleeved on it is described In outer grinding wheel, lower interior grinding wheel outer diameter subtracts the half of lower interior grinding wheel internal diameter size numerical value and lower outer grinding wheel outer diameter subtracts The half of lower outer grinding wheel internal diameter size numerical value is identical, and is less than 2 times of mean diameter of coil；The interior grinding wheel or outer grinding wheel pass through transmission Mechanism drives, and the rotation direction of interior grinding wheel and outer grinding wheel is opposite；After whole disk spring is sent between grinding wheel and lower grinding wheel, whole disk bullet Spring moves back and forth in plane of grinding wheel；Grinding wheel feeding, spring are retracted again by milled, grinding wheel simultaneously；Then, whole disk spring stops moving Between moving and removing two grinding wheels, whole disk spring is finally laid down；The spring moves back and forth in plane of grinding wheel to be moved by swinging What combined mechanism was realized, include the worm screw being connect with motor linkage, there are two worm gear, the worm gear and cunnings for the setting of worm screw both sides Seat axis is connected, and sliding block axis is provided on the slide axis, the sliding block axis is connected with connecting rod A, the connecting rod A It is connect with mill, spring-loaded in the mill, sliding block axis axial line and slide axis axial line distance can be adjusted；Described Two slide axis for swinging mobile combined mechanism are driven by two worm gears, and two worm gears are by same branch worm-drive；Or institute Two slide axis of the mobile combined mechanism of swing stated are driven by two gears, and gear is driven by same branch tooth shaft；It is described Upper grinding wheel be made of interior grinding wheel and outer grinding wheel, lower grinding wheel is an integral structure；Or the lower grinding wheel is by interior grinding wheel and outer sand Wheel composition, upper grinding wheel are an integral structure；Again or the lower grinding wheel and upper grinding wheel are formed by by interior grinding wheel and outer grinding wheel, this Under kind structure situation, two interior grinding wheel rotation directions are identical, and two outer grinding wheel rotation directions are also identical, but inside and outside grinding wheel turns Dynamic direction is opposite；It between grinding wheel and lower grinding wheel is sent by the mobile combined mechanism of swing that the whole disk spring, which is sent into upper, The swing movement combined mechanism includes being provided with bearing, and the bearing is connected by connecting rod B with turntable, connecting rod B's One end is arranged by pivot pin in disk edge；The transmission mechanism includes the belt pulley with motor linkage, can be rotated with belt Dynamic grinding wheel spindle, the grinding wheel spindle are fixedly connected with interior grinding wheel or outer grinding wheel.

2. a kind of spring high quality and high efficiency method for grinding according to claim 1, it is characterised in that：The interior grinding wheel Interior grinding wheel spindle fitting is provided with taper roll bearing in the outer grinding wheel spindle of outer grinding wheel, between them, and outer grinding wheel spindle is arranged in axis 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, the 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：The upper grinding wheel It is connected with motor shaft by upper coupling and lower coupler, shaft coupling piece is provided between upper coupling and lower coupler, institute The notch of the quartering is offered on the shaft coupling piece side stated.