A kind of shaft circlip automatic assembly equipment
Technical field
The present invention relates to axis circlips to assemble field, in particular to a kind of shaft circlip automatic assembly equipment.
Background technique
Circlip is also retaining ring or retaining ring, belongs to one kind of fastener, for rising in the axial trough or hole slot of machine, equipment
Prevent the effect of part axial movement on axis or on hole, so circlip is such as installed not in place, often influence entire mechanical produce
Quality, and there are security risks.In the prior art, the clamping work of circlip is generally completed using clamp, which exists
Processing efficiency is low, is manually also easy to produce fatigue, it is possible that assembly precision can be caused poor due to fatigue.
According to the above problem through retrieving: China Patent No.: a kind of clamp spring assembling machine disclosed in CN201710539640.3, it should
Scheme disadvantage is: circlip opening on the market varies, the circlip smaller or especially small for some openings, if not
It can not be made to be assembled in shaft card slot using mechanical flaring, above scheme is not specifically described how specific circlip is
Limit-type conveying, it that is to say the open area of circlip in assembling process, if in the fixed angle of setting, it is possible that
It is unable to ensure the installation of flaring station, assembling quality may finally be will affect.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of shaft circlip automatic assembly equipment.
To solve the above problems, the present invention the following technical schemes are provided:
A kind of shaft circlip automatic assembly equipment, including processing platform and turn at the top of the processing platform and to place
Axis holds seat, further includes two and is respectively arranged on the subassembly mechanism for holding one end, subassembly structure includes screening material rail, mends
Charge rail, punching charging rail and flaring dynamic equipment, screening material rail are set to outside processing platform in horizontal, supplement material rail gantry be set to plus
Above work platform, punching charging rail is set to the downstream for supplementing material rail, and the conveying direction of the two is T-shaped, punching charging rail and benefit
Charge rail is connected, and is provided with below the downstream of supplement material rail to inlet casing, expects in rail to inlet casing purposes in will supplement
Single circlip be promoted in punching charging rail, the punching charging conveying direction of rail and axially perpendicular in the shaft held in seat,
Punching dress block is equipped in punching charging rail, be equipped with above punching dress block be sequentially connected therewith rush charge of oil cylinder, flaring dynamic equipment is set to
The outside of punching charging rail downstream, and the two at right angles cooperates, be equipped in screening material rail to by the opening of circlip towards one
The screening washer of a fixed-direction conveying.
Further, punching charging rail includes two groups of limit material rails symmetrical above and below, and the upstream end of two groups of limit material rails is logical
A support arm connection is crossed, every group of limit material rail includes symmetrical two rubber strips, the spacing between two rubber strips
It is similar with the thickness of circlip.
Further, the cross section of supplement material rail is U-shaped structure, and it is open facing towards flaring dynamic equipment, supplement material
Be equipped with two gag lever posts symmetrical above and below in rail, gag lever post close to the opening face of supplement material rail, slot height in supplement material rail with
The outer diameter of circlip is similar, and the downstream of supplement material rail is equipped with baffle, is equipped with supporting plate between baffle and supplement material rail, supporting plate
Lateral gap of the two sides respectively with baffle and supplement material rail cooperates, and the underface of supporting plate, and its piston are set to inlet casing
The connection of the bottom driving of axis and supporting plate, supporting plate are in the underface of limit material rail.
Further, punching dress block is the thin slice of disk-shaped structure, and punching dress block is set in two groups of limit material rails, the outside of punching dress block
It is sequentially connected by transmission arm with the output end for rushing charge of oil cylinder, being rushed charge of oil cylinder driving punching dress block can be along the feeding of punching charging rail
Direction horizontal anomalous movement in two groups of limit material rails, is provided with guide item, guide item immediately below the limit material rail that is below
Extending direction with punching charging the feed direction of rail it is parallel, the both ends of guide item extend respectively to punching charging rail downstream with
And end when corresponding supporting plate region.
Further, flaring dynamic equipment includes air-actuated jaw, cylinder slide unit and two flaring bars, and cylinder slide unit is in level
It is set up in above processing platform, the cylinder body of air-actuated jaw is connect with the output end of cylinder slide unit, the clamping end direction of air-actuated jaw
The downstream of limit material rail, one end of two flaring bars are respectively welded on a clamping end of air-actuated jaw, two flaring bars
The other end be respectively above and below two limits material rails.
Further, two limits expect that the surface of rail and underface have been respectively articulated with a position limit arm, two position limit arms
Free end be able to rotatably close to the limit material rail downstream extreme direction of respective position, the hinged end of position limit arm is equipped with
Torsional spring, when two torsional springs are in the normal state down, the angle that the free end of two position limit arms is constituted is within 35 °.
Further, screening washer includes high pressure gas nozzle and is mounted on the screening strip plate screened in material rail, screens strip
The extending direction of plate is parallel with the screening material conveying direction of rail, screen the two sides of strip plate respectively with the side in screening material rail
It is reserved with punishment in advance spacing, the front end of screening strip plate towards screening material rail upstream end offers inclined surface, and the inclined surface is certainly
The front end of screening strip plate gradually gets higher setting by low to rear extreme direction, screens the width of strip plate by its front end to rear extreme direction
Gradually by the narrow setting that broadens, high pressure gas nozzle is set to the side of screening material rail, and the other side of screening material rail offers screening notch, high
Calm the anger mouth and screen notch both correspond to screening strip plate front end setting.
Further, be equipped with delivering manipulator between screening material rail and supplement material rail, deliver mechanical hand include rotating electric machine,
Feeding cylinder and two symmetrical electromagnetism suction blocks being mounted in feeding cylinder output, electromagnetism suction block are semicircle knot
Structure, feeding cylinder is in inversion, and the output rotor of its cylinder body and rotating electric machine connects, through rotating electric machine driving feeding cylinder rotation
Turn that its successively corresponding screening in rotary course can be made to expect rail and supplement material rail.
Further, the bottom of processing platform is equipped with cooperation electric cylinders, cooperates the output end of electric cylinders and holds the bottom of seat
Transmission connection, through cooperation electric cylinders driving hold seat can make its towards punching charging rail direction straight close to or far from.
The utility model has the advantages that a kind of shaft circlip automatic assembly equipment of the invention, circlip are conveyed through vibrating disk, in individually falling on
In screening material rail, then move on, should during, then can be due to if circlip opening is not corresponding screening strip plate
Inclined surface is gradually lifted, and the circlip after lifting can be blown off by high pressure gas nozzle, and be fallen by screening notch, is conveyed again;Opening
The circlip of corresponding screening strip plate can be inserted on screening strip plate, be indicated herein: the groove width and circlip outer diameter of screening material rail are similar,
Promote circlip opening under not to positive status in this way, can also be inserted on screening strip plate;The circlip being inserted on screening strip plate, by
It constitutes and contradicts in screening strip plate side in opening, so high pressure gas nozzle can not be blown off, simultaneously, since screening is grown
The width of batten by its front end to rear extreme direction gradually by the narrow setting that broadens, then then the opening of circlip gradually can be corrected to just
To screening strip plate;After at the rear end that single circlip is transported to corresponding screening strip plate, electric rotating opportunity driven is taken at this time
Expect rotational cylinder, and make electromagnetism suction block and the circlip " tilting in half range " symmetrical, then utilizes feeding cylinder action power,
Electromagnetism suction block is driven to adsorb circlip;Circlip after being adsorbed is resetted through rotating electric machine and is rotated, so that feeding cylinder face is supplemented
Expect rail, then supplements cylinder and pour the circlip of the absorption to supplement material rail, then take off magnetic release, the circlip is at this time
Vertical posture occupy in supplement material rail, and the top and bottom in supplement material rail can be sticked flexible layer, is in vertical posture convenient for circlip;
It then repeats the above steps repeatedly, the circlip quantity in supplement material rail increases, and advances one by one by collision type, before most
To after reaching supporting plate region, vertical activity can occur one circlip of side by feed cylinder action power for supporting plate, then should
Circlip jacks up, and heads into punching charging rail, then heads on the circlip of jack-up wait rush dress block and leaves supporting plate region, and transition
To guide item, then supporting plate implements decline reset;The circlip jacked up occupy in two groups of limit guide rails, when circlip is by dish type
In disk pushing course, front end area needs that subsequent assembly is cooperated to act, so need to be detached between two limit material rails, in order to
Prevent the circlip after being detached from from having a down dip, so provided with two position limit arms, the corresponding torsional spring of two position limit arms under normal conditions when,
The angle that the free end of two position limit arms is constituted can make circlip push be detached from excessively in, touch position limit arm, force limit
Arm is in contact being forced to rotate for formula, while during rotation, implements support limit to circlip always, when circlip fills block by punching
Stop after being pushed to setting position, cylinder slide unit can drive air-actuated jaw close straight to circlip region at this time, promote two expansions
Mouth bar activity is between circlip inner wall and limit material rail outer surface, and then air-actuated jaw drives spacing between two flaring bars to occur
Change, then constitute the inner wall conflict to circlip, realize the flaring to circlip, then cooperates electric cylinders that will be in first and hold seat
On shaft advance into the circlip being flared, into after half, flaring dynamic equipment resets, and detaches in circlip, circlip elasticity
It shrinks, while rushing charge of oil cylinder and driving punching dress block moment that circlip top is filled in the jump-ring slot of shaft;The present invention can guarantee circlip
Stability in assembly, and then promote assembling quality.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention;
Fig. 2 is enlarged drawing at A in Fig. 1;
Fig. 3 is planar structure schematic diagram one of the invention;
Fig. 4 is enlarged drawing at B in Fig. 3;
Fig. 5 is sectional perspective structural schematic diagram one of the invention;
Fig. 6 is enlarged drawing at C in Fig. 5;
Fig. 7 is enlarged drawing at D in Fig. 5;
Fig. 8 is sectional perspective structural schematic diagram two of the invention;
Fig. 9 is planar structure schematic diagram two of the invention;
Figure 10 is sectional perspective structural schematic diagram three of the invention;
Description of symbols: processing platform 1 holds a 1a, cooperates electric cylinders 1b.
Screening material rail 2, high pressure gas nozzle 2a screen strip plate 2b, inclined surface 2c, screen notch 2d.
Supplement material rail 3, gives inlet casing 3a, gag lever post 3b, baffle 3c, supporting plate 3d, guide 3r.
Position limit arm 4.
Limit material rail 5a, support arm 5b, rubber strip 5c, punching dress block 5d, rush charge of oil cylinder 5r.
Air-actuated jaw 6, cylinder slide unit 6a are flared bar 6b.
Rotating electric machine 7, feeding cylinder 7a, electromagnetism suction block 7b.
Circlip 8.
Specific embodiment
With reference to the accompanying drawings of the specification and embodiment, specific embodiments of the present invention are described in further detail:
Referring to figs. 1 to a kind of shaft circlip automatic assembly equipment shown in Fig. 10, including processing platform 1 and it is set to processing
The top of platform 1 simultaneously holds a 1a to place shaft, further includes two and is respectively arranged on the subassembly mechanism for holding one end 1a,
Subassembly structure includes screening material rail 2, supplement material rail 3, punching charging rail and flaring dynamic equipment, and screening material rail 2 is set in level
Outside processing platform 1, supplement material rail 3 is set up in 1 top of processing platform, and punching charging rail is set to the downstream of supplement material rail 3, and
The conveying direction of the two is T-shaped, punching charging rail with supplement material rail 3 be connected, supplement expect rail 3 downstream below be provided with to
Inlet casing 3a is promoted in punching charging rail to inlet casing 3a purposes in by the single circlip 8 in supplement material rail 3, punching charging rail
Conveying direction and axially perpendicular in the shaft held in a 1a, punching charging rail are equipped with punching dress block 5d, the top of punching dress block 5d
Be equipped be sequentially connected therewith rush charge of oil cylinder 5r, flaring dynamic equipment is set to the outside of punching charging rail downstream, and the two is in
Right angle cooperation, screening expect to be equipped with the screening washer to convey the opening of circlip 8 towards a fixed-direction in rail 2.
Punching charging rail includes two groups of limit material rail 5a symmetrical above and below, and the upstream end of two groups of limit material rail 5a passes through one
Support arm 5b connection, every group of limit material rail 5a include symmetrical two rubber strips 5c, between two rubber strip 5c between
Away from similar with the thickness of circlip 8, the spacing between two rubber strip 5c in two groups of limit guide rails is to the card individually slided
Spring 8 implements guide and limit;Promote circlip 8 can along direction initialization carry out activity, and should during, remain and hold up posture
It is constant.
The cross section of supplement material rail 3 is U-shaped structure, and its opening is equipped in supplement material rail 3 facing towards dynamic equipment is flared
Close to the opening face of supplement material rail 3, supplement expects slot height and card in rail 3 by two gag lever post 3b symmetrical above and below, gag lever post 3b
The outer diameter of spring 8 is similar, and the downstream of supplement material rail 3 is equipped with baffle 3c, is equipped with supporting plate 3d between baffle 3c and supplement material rail 3,
Lateral gap of the two sides of supporting plate 3d respectively with baffle 3c and supplement material rail 3 cooperates, to inlet casing 3a set on supporting plate 3d's
Underface, and its piston shaft is connect with the bottom driving of supporting plate 3d, and supporting plate 3d is in the underface of limit material rail 5a, single
To after reaching the region supporting plate 3d, by inlet casing 3a active force vertical activity can occur a circlip 8 for supporting plate 3d, then will
The circlip 8 jacks up, and heads into punching charging rail, then heads on the circlip 8 of jack-up wait rush dress block 5d and leaves the area supporting plate 3d
Behind domain, supporting plate 3d can just decline reset;The slot height and 8 outer diameter of circlip of supplement material rail 3 are similar, that is, show, circlip 8 can be in perpendicular
It is directly slided in supplement material rail 3, two gag lever post 3b active forces are implementing guiding limit to the outside of 8 open area of circlip
Position.
Punching dress block 5d is the thin slice of disk-shaped structure, and punching dress block 5d is set in two groups of limit material rail 5a, the outside of punching dress block 5d
By transmission arm and the output end transmission connection for rushing charge of oil cylinder 5r, being rushed charge of oil cylinder 5r driving punching dress block 5d can be along punching charging rail
Feed direction horizontal anomalous movement, in two groups of limit material rail 5a, be provided with and lead immediately below the limit material rail 5a that is below
The extending direction of material strip 3r, guide 3r are parallel with the punching charging feed direction of rail, and the both ends of guide 3r extend respectively to
End when the downstream and the corresponding region supporting plate 3d of punching charging rail, supporting plate 3d rises with the circlip 8 individually holded up
To after rushing charging rail inside, punching dress block 5d then relies on transmission arm and rushes charge of oil cylinder 5r active force, translates, and during being somebody's turn to do, rushes
Fill block 5d and contact 8 outer surface of circlip, indicate at this time: the opening of circlip 8 is directed towards after circlip 8 rises to punching charging rail inside
The downstream extreme direction of punching charging rail;So punching dress block 5d contact is another side region of circlip 8, that is, constitute to the circlip 8
Conflict push;After circlip 8 after being pushed can transit on guide 3r, that is, supporting plate 3d rises to setting height,
Its upper surface and the upper surface of guide 3r are flush.
Flaring dynamic equipment includes that air-actuated jaw 6, cylinder slide unit 6a and two flarings bar 6b, cylinder slide unit 6a are in level frame
Above processing platform 1, the cylinder body of air-actuated jaw 6 is connect with the output end of cylinder slide unit 6a, the clamping end court of air-actuated jaw 6
To the downstream of limit material rail 5a, one end of two flaring bar 6b is respectively welded on a clamping end of air-actuated jaw 6, and two
The other end of flaring bar 6b is respectively above and below two limit material rail 5a, is set when circlip 8 is pushed to by punching dress block 5d
Positioning postpones stopping, and cylinder slide unit 6a can drive air-actuated jaw 6 close straight to 8 region of circlip at this time, promote two flaring bars
6b activity is between 8 inner wall of circlip and the limit material outer surface rail 5a, and then air-actuated jaw 6 drives spacing between two flaring bar 6b
It changes, then constitutes the inner wall conflict to circlip 8, realize the flaring to circlip 8, subsequent assembly is cooperated to act.
Two limits expect that the surface of rail 5a and underface have been respectively articulated with a position limit arm 4, the freedom of two position limit arms 4
End is able to rotatably close to the downstream the limit material rail 5a extreme direction of respective position, and the hinged end of position limit arm 4 is equipped with torsion
Spring, when two torsional springs are in the normal state down, the angle that the free end of two position limit arms 4 is constituted is within 35 °, when circlip 8 is by dish type
In disk pushing course, front end area needs that subsequent assembly is cooperated to act, so needing to be detached between two limit material rail 5a, is
Prevent the circlip 8 after being detached from from having a down dip, so two corresponding torsional springs of position limit arm 4 are in normality provided with two position limit arms 4
When lower, the angle that the free end of two position limit arms 4 is constituted can make circlip 8 push be detached from excessively in, touch position limit arm 4,
It forces position limit arm 4 to be in contact being forced to rotate for formula, while during rotation, support limit is implemented to circlip 8 always.
Screening washer includes high pressure gas nozzle 2a and is mounted on the screening strip plate 2b screened in material rail 2, screens strip plate 2b
Extending direction with screening material the conveying direction of rail 2 it is parallel, screen strip plate 2b two sides respectively with screening material rail 2 in one
Side is reserved with punishment in advance spacing, and the front end of screening strip plate 2b towards screening material 2 upstream end of rail offers inclined surface 2c, and this inclines
The front end of inclined-plane 2c self-sizing strip plate 2b gradually gets higher setting by low to rear extreme direction, screens the width of strip plate 2b by before it
To rear extreme direction gradually by the narrow setting that broadens, high pressure gas nozzle 2a is set to the side of screening material rail 2, the other side of screening material rail 2 at end
It offers screening notch 2d, high pressure gas nozzle 2a and screening notch 2d both corresponds to the front end setting of screening strip plate 2b, circlip 8 passes through
Vibrating disk conveying is then moved in individually falling in screening material rail 2, during being somebody's turn to do, if the opening of circlip 8 is not corresponding
Strip plate 2b is screened, then then can gradually be lifted due to inclined surface 2c, the circlip 8 after lifting can be blown off by high pressure gas nozzle 2a,
And fallen by screening notch 2d, it conveys again;The circlip 8 of the corresponding screening strip plate 2b of opening can be inserted on screening strip plate 2b,
Indicate herein: the groove width and 8 outer diameter of circlip of screening material rail 2 are similar, promote the opening of circlip 8 under not to positive status in this way, also can
It is inserted on screening strip plate 2b;The circlip 8 being inserted on screening strip plate 2b, since opening is constituted in the screening side strip plate 2b
It contradicts, so high pressure gas nozzle 2a can not be blown off, simultaneously, since the width of screening strip plate 2b is by its front end to rear end
Strip plate 2b is screened gradually by the narrow setting that broadens, then then can gradually correct the opening of circlip 8 to face in direction.
It is equipped with delivering manipulator between screening material rail 2 and supplement material rail 3, delivering mechanical hand includes rotating electric machine 7, feeding gas
Cylinder 7a and two symmetrical electromagnetism suction block 7b, electromagnetism suction block 7b being mounted on feeding cylinder 7a output end is semicircle knot
Structure, feeding cylinder 7a is in inversion, and its cylinder body is connect with the output rotor of rotating electric machine 7, drives feeding gas through rotating electric machine 7
Cylinder 7a rotation can make its successively corresponding screening in rotary course expect rail 2 and supplement material rail 3, when single circlip 8 is transported to
After at the rear end of corresponding screening strip plate 2b, rotating electric machine 7 can drive feeding cylinder 7a to rotate at this time, and make electromagnetism suction block 7b
It is symmetrical with the circlip 8 " being tilted in half range ", feeding cylinder 7a active force then is being utilized, is driving electromagnetism suction block 7b by circlip 8
Absorption;Market circlip 8 is that spring steel material is cast mostly, it is possible to be adsorbed by electromagnetism suction block 7b;Circlip 8 after being adsorbed,
It resets and rotates through rotating electric machine 7, so that feeding cylinder 7a face supplement material rail 3, then supplements cylinder and rush the circlip 8 of the absorption
Enter to supplement material rail 3, then takes off magnetic release.
The bottom of processing platform 1 is equipped with cooperation electric cylinders 1b, cooperates the output end of electric cylinders 1b and holds the bottom biography of a 1a
Dynamic to connect, holding a 1a through cooperation electric cylinders 1b driving can make it towards punching charging rail direction straight close to or far from cooperation electric cylinders
1b is acted on, and is flared after dynamic equipment implements flaring in circlip 8, cooperation electric cylinders 1b first by hold shaft on a 1a to
It advances in the circlip 8 being flared, into after half, flaring dynamic equipment resets, and detaches in circlip 8,8 elastic shrinkage of circlip, together
When rush charge of oil cylinder 5r drive punching dress block 5d moment by circlip 8 top be filled in 8 slot of circlip of shaft.
Working principle: circlip 8 is conveyed through vibrating disk, in individually falling in screening material rail 2, is then moved on, the process
In, if the opening of circlip 8 is not corresponding screening strip plate 2b, then can gradually be lifted due to inclined surface 2c, after lifting
Circlip 8 can be blown off by high pressure gas nozzle 2a, and be fallen by screening notch 2d, be conveyed again;The card of the corresponding screening strip plate 2b of opening
Spring 8 can be inserted on screening strip plate 2b, be indicated herein: the groove width and 8 outer diameter of circlip of screening material rail 2 are similar, promote circlip 8 in this way
Opening can be also inserted on screening strip plate 2b under not to positive status;The circlip 8 being inserted on screening strip plate 2b, due to opening
It constitutes and contradicts in the screening side strip plate 2b, so high pressure gas nozzle 2a can not be blown off, simultaneously, due to screening strip
The width of plate 2b by its front end to rear extreme direction gradually by the narrow setting that broadens, then then the opening of circlip 8 can gradually be corrected to
Face screens strip plate 2b;After at the rear end that single circlip 8 is transported to corresponding screening strip plate 2b, rotating electric machine 7 at this time
Feeding cylinder 7a can be driven to rotate, and make electromagnetism suction block 7b and the circlip 8 " tilting in half range " symmetrical, then taken in utilization
Expect cylinder 7a active force, electromagnetism suction block 7b is driven to adsorb circlip 8;Circlip 8 after being adsorbed is resetted through rotating electric machine 7 and is rotated,
So that feeding cylinder 7a face supplement material rail 3, then supplements cylinder and pours the circlip 8 of the absorption to supplement material rail 3, so
Magnetic release is taken off afterwards, and the circlip 8 is in vertical posture and occupy in supplement material rail 3 at this time, and the top and bottom in supplement material rail 3 can be sticked and have
Flexible layer is in vertical posture convenient for circlip 8;It then repeats the above steps repeatedly, 8 quantity of circlip in supplement material rail 3
Increase, and advance one by one by collision type, when a circlip 8 of forefront is to after reaching the supporting plate region 3d, supporting plate can be relied on
Vertical activity occurs to inlet casing 3a active force, then jacks up the circlip 8, and heads into punching charging rail, then wait rush dress
The circlip 8 of jack-up is headed on and leaves the region supporting plate 3d by block 5d, and is transitted on guide 3r, and then supporting plate 3d implements decline
It resets;The circlip 8 jacked up occupy in two groups of limit guide rails, and when circlip 8 is by dish type disk pushing course, front end area needs
Subsequent assembly is cooperated to act, so needing to be detached between two limit material rail 5a, under the circlip 8 after being detached from order to prevent occurs
Incline, thus be provided with two position limit arms 4, two corresponding torsional springs of position limit arm 4 under normal conditions when, the free end of two position limit arms 4
The angle of composition can make circlip 8 push be detached from excessively in, touch position limit arm 4, position limit arm 4 forced to be in contact the quilt of formula
Compel rotation, while during rotation, support limit is implemented to circlip 8 always, when circlip 8 is pushed to setting position by punching dress block 5d
Stopping is postponed, cylinder slide unit 6a can drive air-actuated jaw 6 close straight to 8 region of circlip at this time, promote two flaring bar 6b living
It moves between 8 inner wall of circlip and the limit material outer surface rail 5a, then air-actuated jaw 6 drives spacing between two flaring bar 6b to occur
Change, then constitutes the inner wall conflict to circlip 8, realize the flaring to circlip 8, then cooperate electric cylinders 1b first will be in Sheng
The shaft put on a 1a is advanced into the circlip 8 being flared, and into after half, flaring dynamic equipment resets, and detaches in circlip 8,
8 elastic shrinkage of circlip, while rushing charge of oil cylinder 5r and driving punching dress block 5d moment that the top of circlip 8 is filled in 8 slot of circlip of shaft.
The above described is only a preferred embodiment of the present invention, not making any limit to technical scope of the invention
System, therefore any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention,
In the range of still falling within technical solution of the present invention.