CN202572517U - Punching device for preventing machining deformation of car seal strip with framework - Google Patents
Punching device for preventing machining deformation of car seal strip with framework Download PDFInfo
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- CN202572517U CN202572517U CN 201220249441 CN201220249441U CN202572517U CN 202572517 U CN202572517 U CN 202572517U CN 201220249441 CN201220249441 CN 201220249441 CN 201220249441 U CN201220249441 U CN 201220249441U CN 202572517 U CN202572517 U CN 202572517U
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Abstract
The utility model discloses a punching device for preventing machining deformation of a car seal strip with a framework. The punching device comprises a female die, a pressing plate and a cutter, and is characterized in that a groove for placing the seal strip and a guide mechanism for guiding the cutter to finish punching movement are arranged on the female die; the guide mechanism is crossed with the groove to form a guide included angle; the cutter is provided with a horizontal cutting edge and a vertical cutting edge; a cutting edge included angle is formed between the horizontal cutting edge and the motion direction of the cutter; one end of the horizontal cutting edge, which is far away from the pressing plate, is inclined in the forward direction of the punching movement of the cutter; and the cutting edge included angle is smaller than the guide included angle. During punching operation, the seal strip is stepwise cut by the horizontal cutting edge at first and then cut by the vertical cutting edge, so that the impact force of the cutter on the seal strip is reduced to reduce the deformation of the seal strip, which enables the cut surface of the seal strip to be flat and avoids the deformation of the framework.
Description
Technical field
The utility model relates to a kind of blanking units, relates in particular to a kind of blanking units with the skeleton weather strip for automobile, belongs to auto parts and components cutting processing technical field.
Background technology
Sealing strip is one of important spare part of automobile door and window sealing usefulness, also is one of important decoration on the automobile.In the actual production of sealing strip, need process otch in its end usually after the sealing strip moulding, the requirement that assembling connects when using to satisfy sealing strip.Sealing strip as shown in Figure 1 is that present automotive window seals sealing strip commonly used, and the requirement according to assembling connects need process an otch at an end of sealing strip, and requires this otch to have vertical tangent plane 1 and horizontal tangent plane 2.Since sealing strip after entrucking its vertical tangent plane 1 with outside laterally the part of tangent plane 2 is exposed to; Consider from aesthetic property; Require the processed cut surface of sealing strip smooth, do not have distortion, otherwise will cause the aesthetic property variation of sealing strip, cause part to scrap.
At present, the mode of Punching Technology is generally adopted in the processing of weather strip for automobile otch, its have simple to operate, efficient is high, be suitable for producing in batches and plurality of advantages such as easily be automated.But; Apparatus for blanking and processing of the prior art mainly is to design to full rubber weather strip; When directly being used for the sealing strip of processing belt skeleton, the blanking units of the full rubber weather strip of this processing has following problem:, in Punching Technology, need two kinds of materials of one-step punching rubber and steel band/aluminium strip, and these two kinds of materials exist on intensity and elasticity than big-difference because band skeleton weather strip for automobile is made up of rubber coated steel band or aluminium strip; Elastomeric material is very soft, intensity is low; Elasticity is preferably arranged, and steel band or aluminium strip be high, the poor flexibility of intensity then, when sealing strip during by Punching Technology; The effect of cutter impulsive force and cutting force impels elastomeric material extruding mutually to take place and produce different deformation with steel band or aluminium strip; Otch after this deformation causes sealing strip processed surface irregularity occurs, the problem of framework deformation takes place, and greatly reduces the aesthetic property of sealing strip, causes part to scrap.Visible by above analysis, the Punching Technology of band reinforced seal bar is complicated, for satisfying the requirement of actual processing, a kind of apparatus for blanking and processing that can prevent that the out-of-flatness of sealing strip cut surface, skeleton from deforming need be provided.
In the prior art; " Punching Technology of steely skeleton rubber sealing strip " (mechanical engineer that the little equality people of king delivers; 2003 (2): 50-51) disclose a kind of Punching Technology cutter and anchor clamps that are used in the die-cut rectangular indentation in the end of steely skeleton rubber sealing strip in the literary composition; The body of this Punching Technology cutter is a rectangle, upright cutting blade mouth and horizontal main cutting cutting edge are arranged on two limits of rectangle, and laterally the main cutting cutting edge tilts; Laterally the angle between main cutting cutting edge and the cutter cross section is 10 °; It is die-cut to use this punching tool that steely skeleton rubber sealing strip is carried out, and can in die-cut process, reduce the impulsive force of cutter to sealing strip, to reduce the deflection of skeleton steel disc.But; The incline direction of the horizontal main cutting cutting edge of punching tool in this technology is to begin by founding the intersection of cutting blade mouth with horizontal main cutting cutting edge, and the opposite direction of advancing to the die-cut motion of cutter tilts; The upright cutting blade mouth of cutter will contact with sealing strip earlier when die-cut like this; The horizontal main cutting edge eloquence in cutting back takes place contact and cut with sealing strip gradually, this cutting way is actually the crosscut cutting edge and upright cutting blade mouth cuts sealing strip simultaneously, and cutter is bigger to the impulsive force of sealing strip during cutting; Still can make extruding mutually takes place between skeleton and the rubber; And then make rubber and skeleton produce different deformation, and cause the cut surface out-of-flatness that punched out, framework deformation takes place; In addition; The front end face of the Punching Technology cutter in this technology is a rectangle; When cutting is not all accomplished in die-cut process; The rectangle end face of cutter can come in contact with the part that sealing strip is cut and sealing strip is formed extruding, and framework deformation takes place in the cut surface out-of-flatness that also can cause sealing strip to be punched out.
Summary of the invention
The purpose of the utility model is the problem that deforms to the cut surface out-of-flatness of the die-cut back of the band reinforced seal bar that exists in the prior art, skeleton, and a kind of blanking units that prevents with skeleton weather strip for automobile machining deformation is provided.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
A kind of blanking units of anti-band skeleton weather strip for automobile machining deformation comprises former, pressing plate and cutter,
On said former, be provided with groove, be used to place sealing strip, the shape of said groove matches with the contour shape of sealing strip to be processed;
Above said former, be provided with liftable said pressing plate, be used to compress sealing strip, said pressing plate is shaped to the shape that cooperates with the sealing strip profile phase with the part that the sealing strip surface contacts;
End at said former is provided with guiding mechanism; Intersect formation one guiding angle with said groove; Between said guiding mechanism and the said cutter for being slidingly matched; Be used to guide said cutter to accomplish die-cut moving along the bearing of trend of said guiding mechanism, said sealing strip extends to said guiding mechanism and said groove intersection, and the said guiding mechanism motion realization in said cutter edge is die-cut to said sealing strip;
Said cutter has crossing crosscut cutting edge and upright cutting blade mouth; And between the said guiding mechanism for being slidingly matched; The side of said upright cutting blade mouth and said cutter is in the same plane; And on the direction of extending perpendicular to said guiding mechanism near said pressing plate; And and the end face of said pressing plate near said cutter between form the gap, the bottom surface of said crosscut cutting edge and said cutter is in the same plane, forms a knife edge included angle between said crosscut cutting edge and the said tool motion direction; Said crosscut cutting edge is tilted to the direction of advance of the die-cut motion of said cutter away from an end of said pressing plate, and said knife edge included angle intersects the guiding angle that forms less than said guiding mechanism and said groove; The flank of tool at the tool base at said crosscut cutting edge place and said upright cutting blade mouth place intersects and forms a cutting edge angle, and said cutting edge angle is interior arbitrarily angled except that 0 ° and 180 ° of 0 ° ~ 180 ° scopes.
It is 50 ° ~ 90 ° that said guiding mechanism and said groove intersect the guiding angle that forms.
The knife edge included angle that said crosscut cutting edge and said tool motion direction form is 10 ° ~ 60 °.
The differential seat angle of said guiding angle and said knife edge included angle is equal to or greater than 5 °.
Said upright cutting blade mouth and said pressing plate near the gap between the end face of cutter less than 1mm.
Said crosscut cutting edge is that circular arc is connected with said upright cutting blade mouth intersection, and the end face of said crosscut cutting edge is that same circular arc is connected with the end face intersection of said upright cutting blade mouth.
The end face of the end face of said crosscut cutting edge and said upright cutting blade mouth intersects, at vee of front end formation of said cutter body.
The crosscut cutting edge point of a knife angle of wedge that forms between the end face of said crosscut cutting edge and the said tool base is 10 ° ~ 40 °, and the upright cutting blade mouth point of a knife angle of wedge that forms between the end face of said upright cutting blade mouth and the said flank of tool is 10 ° ~ 40 °.
The said crosscut cutting edge point of a knife angle of wedge is identical with said upright cutting blade mouth point of a knife angle of wedge size.
On the side of said groove away from said cutter direction of advance; And further be provided with secondary cutting edge with said guiding mechanism intersection; Relative with said crosscut cutting edge; And form to shear with said crosscut cutting edge and cooperate, the upper surface of said secondary cutting edge is the plane, and is on the same horizontal plane with the end face of said guiding mechanism; Said secondary cutting edge and said groove bearing of trend form a secondary sword angle, and said secondary cutting edge is tilted away from the opposite direction that an end of said pressing plate advances to the die-cut motion of said cutter on said groove bearing of trend.
The secondary sword angle that said secondary cutting edge and said groove bearing of trend form is 2 ° ~ 5 °.
The lower surface of said secondary cutting edge is a cambered surface.
The cambered surface radius of said secondary cutting edge lower surface is 0.5 ~ 5mm.
The lower surface of said secondary cutting edge is the taper cambered surface, and the summit is positioned at said secondary cutting edge end near said pressing plate on said groove bearing of trend.
Said former comprises movable former and fixing former, and said movable former is connected through guide pillar with said fixedly former, and said movable former can slidably reciprocate at the said guide pillar in direction upper edge that extends perpendicular to said groove under power drive.
Compared with prior art, the utlity model has following advantage:
(1) blanking units of the anti-band skeleton weather strip for automobile machining deformation of the utility model; Comprise former, pressing plate and cutter; On said former, be provided with the groove of placing sealing strip; End at said former is provided with guiding mechanism; Intersect formation one guiding angle with said groove, the setting of guiding angle is for the blanking units that makes the utility model can process the otch that has slanted angle between vertical tangent plane and the sealing strip bearing of trend, through changing the size of said guiding angle; Can punch out crossing vertical tangent plane and horizontal tangent plane at an end of sealing strip, and vertical tangent plane and laterally have the otch of different slanted angles between intersection and the sealing strip bearing of trend of tangent plane; For being slidingly matched, be used to guide said cutter to move between said guiding mechanism and the said cutter, thereby realize die-cut to sealing strip along the bearing of trend of said guiding mechanism; Said cutter has crossing crosscut cutting edge and upright cutting blade mouth; Form a knife edge included angle between said crosscut cutting edge and the said tool motion direction; Said crosscut cutting edge is tilted to the direction of advance of the die-cut motion of said cutter away from an end of said pressing plate; Intersect the guiding angle that forms through controlling said knife edge included angle less than said guiding mechanism and said groove, like this in die-cut process, make between the bearing of trend of crosscut cutting edge and said groove of said cutter shape in an angle; Make that the crosscut cutting edge of punching tool cuts sealing strip earlier when die-cut; And the crosscut cutting edge progressively contacts with sealing strip during cutting, and the horizontal tangent plane of sealing strip is progressively cut, and has therefore reduced the impulsive force of cutter to sealing strip greatly; Thereby reduced the distortion that sealing strip produces owing to the impulsive force of cutter greatly; Make and framework deformation does not take place the horizontal tangent plane surfacing that sealing strip is processed, that is to say; After the horizontal tangent plane of sealing strip is cut open a part; The upright cutting blade eloquence of cutter is cut sealing strip, through upright cutting blade mouth and said pressing plate being set near forming the vertical tangent plane generation surface irregularity that the gap prevents that sealing strip is processed and the phenomenon of framework deformation between the end face of cutter, thereby has solved the problem that the band reinforced seal bar that exists in the prior art die-cut afterwards cut surface out-of-flatness, skeleton deform; The flank of tool at the tool base at said crosscut cutting edge place and said upright cutting blade mouth place intersects formation one cutting edge angle; Said cutting edge angle is arbitrarily angled except that 0 ° and 180 ° in 0 ° ~ 180 ° scopes; Through changing the size of said cutting edge angle, can punch out horizontal tangent plane and the otch that vertically has different angles between the tangent plane at an end of sealing strip.
(2) blanking units of the anti-band skeleton weather strip for automobile machining deformation of the utility model; The knife edge included angle that said crosscut cutting edge and said tool motion direction form is 10 ° ~ 60 °; If said knife edge included angle is too small, can significantly reduce the intensity of cutter, if said knife edge included angle is excessive; Can increase the impulsive force of said crosscut cutting edge when die-cut to sealing strip; Cause the generation of cut surface out-of-flatness and framework deformation easily, said knife edge included angle is set is 10 ° ~ 60 ° said crosscut cutting edge is tilted to the direction of advance of the die-cut motion of said cutter away from an end of said pressing plate, thereby said crosscut cutting edge contacts laterally with sealing strip earlier and progressively cuts when die-cut; Reduce the impulsive force of cutter, prevent the problem that cut surface out-of-flatness and skeleton deform sealing strip;
The differential seat angle that said guiding angle and said knife edge included angle are set is equal to or greater than 5 °; Make to form between the bearing of trend of crosscut cutting edge and said groove of said cutter and be equal to or greater than 5 ° angle; Make that the crosscut cutting edge of punching tool cuts sealing strip earlier when die-cut; The horizontal tangent plane of sealing strip is progressively cut; After the horizontal tangent plane of sealing strip was cut open a part, the upright cutting blade eloquence of punching tool was cut sealing strip, has reduced the impulsive force of cutter to sealing strip greatly; Thereby reduced the distortion that sealing strip produces owing to the impulsive force of cutter greatly, the otch of having avoided sealing strip to be punched out surface irregularity occurs, the problem of framework deformation takes place.
(3) blanking units of the anti-band skeleton weather strip for automobile machining deformation of the utility model; The gap that forms between said upright cutting blade mouth and the end face of said pressing plate near cutter is set less than 1mm; Can reduce when die-cut stepping down of elastomeric material on the sealing strip, the problem that surface irregularity and skeleton deform appears in the vertical tangent plane that helps further to prevent sealing strip.
(4) blanking units of the anti-band skeleton weather strip for automobile machining deformation of the utility model; The end face of the end face of said crosscut cutting edge and said upright cutting blade mouth intersects; Front end at said cutter body forms a vee; The part that sealing strip is downcut when die-cut like this can derive along vee; Can not form extruding, can further prevent sealing strip owing to push and produce distortion to sealing strip, thus the sealing strip cut surface out-of-flatness that prevents to cause and the problem of framework deformation by distortion.
(5) blanking units of the anti-band skeleton weather strip for automobile machining deformation of the utility model; On the side of said groove away from said cutter direction of advance; And further be provided with secondary cutting edge with said guiding mechanism intersection; Relative with said crosscut cutting edge, and form to shear with said crosscut cutting edge and cooperate, the upper surface of said secondary cutting edge is the plane; And be on the same horizontal plane with the end face of said guiding mechanism; Said secondary cutting edge and said groove bearing of trend form a secondary sword angle, and said secondary cutting edge is tilted away from the opposite direction that an end of said pressing plate advances to the die-cut motion of said cutter on said groove bearing of trend, and said secondary cutting edge and said crosscut cutting edge form to shear also and simultaneously sealing strip laterally progressively cut when die-cut like this; Further reduced the impulsive force of cutter to sealing strip; Reduced the distortion that sealing strip produces owing to the impact of cutter, thereby can prevent the otch generation surface irregularity that sealing strip is processed and the phenomenon of framework deformation, can process band skeleton weather strip for automobile with complicated abnormal shape face.
(6) blanking units of the anti-band skeleton weather strip for automobile machining deformation of the utility model; The secondary sword angle that said secondary cutting edge and said groove bearing of trend form is 2 ° ~ 5 °, if angle too small is unfavorable for reducing the impulsive force of secondary cutting edge to sealing strip; The problem that cut surface out-of-flatness and skeleton deform appears easily; If angle is excessive, secondary cutting edge will stretch in the said groove, cause sealing strip can't pack in the said groove; It is 2 ° ~ 5 ° that said secondary sword angle is set; Can guarantee that sealing strip can pack under the situation of said groove, effectively reduce when die-cut secondary cutting edge, thereby the otch of avoiding sealing strip to be punched out surface irregularity occurs, the problem of framework deformation takes place the impulsive force of sealing strip.
(7) blanking units of the anti-band skeleton weather strip for automobile machining deformation of the utility model; The lower surface of said secondary cutting edge is a cambered surface; Can reduce the point of a knife angle of wedge of secondary cutting edge; Improve the sharpness of secondary cutting edge, strengthen the shearing force between secondary cutting edge and the said crosscut cutting edge, thereby can prevent the otch generation surface irregularity that sealing strip is processed and the phenomenon of framework deformation; The lower surface of said secondary cutting edge further is preferably the taper cambered surface; The summit is positioned at said secondary cutting edge end near said pressing plate on said groove bearing of trend; The taper cambered surface helps further to strengthen the shearing between secondary cutting edge and the said crosscut cutting edge, prevents the phenomenon of die-cut back cut surface out-of-flatness of sealing strip and framework deformation.
(8) blanking units of the described anti-band skeleton weather strip for automobile machining deformation of the utility model; Further former is arranged to movable former and fixing former; Said movable former is by its slip of a powered, before sealing strip is carried out Punching Technology, earlier with the sealing strip fixedly former of packing into; Sliding to fixing former with the movable former of a powered is then grasped until sealing strip fully, so that Punching Technology subsequently.The charge and discharge operations that is arranged so that sealing strip of movable former is more simple and convenient, the weather strip for automobile that is particularly suitable for having complicated abnormal shape face structure.
Description of drawings
Fig. 1 is band skeleton weather strip for automobile structural representation.
Fig. 2 is the blanking units structural representation of the utility model embodiment 1.
Fig. 3 is the vertical view of blanking units among Fig. 2.
Fig. 4 is the left view of blanking units among Fig. 2.
Fig. 5 is the structural representation of the punching tool 6 of the utility model blanking units.
Fig. 6 is the front view of punching tool 6 among Fig. 5.
Fig. 7 is the cutaway view along A-A line direction among Fig. 6.
Fig. 8 is the vertical view of punching tool 6 among Fig. 5.
Fig. 9 is the blanking units structural representation with secondary cutting edge 14.
Figure 10 is the front view of secondary cutting edge 14 among Fig. 9.
Figure 11 is a B portion enlarged drawing among Figure 10.
Figure 12 is the left view of secondary cutting edge 14 among Fig. 9.
Figure 13 is a C portion enlarged drawing among Figure 12.
Figure 14 is the vertical view of secondary cutting edge 14 among Fig. 9.
Figure 15 is a D portion enlarged drawing among Figure 14.
Figure 16 has the movable former and the fixing blanking units structural representation of former.
Figure 17 is the fixing front view of former 18 among Figure 16.
Figure 18 is the fixing left view of former 18 among Figure 16.
Figure 19 is the fixing vertical view of former 18 among Figure 16.
Figure 20 is the front view of movable former 17 among Figure 16.
Figure 21 is the left view of movable former 17 among Figure 16.
Figure 22 is the vertical view of movable former 17 among Figure 16.
Figure 23 is the sketch map of movable former 17 when fixedly former 18 is in the matched moulds state.
Reference numeral is expressed as among the figure: the vertical tangent plane of 1-, the horizontal tangent plane of 2-, 3-aluminium strip, 4-rubber, 5-pressing plate; The 6-cutter, the 7-former, the 8-guiding mechanism, 9-places the groove of sealing strip, and 10-founds the cutting blade mouth; The end face of the upright cutting blade mouth of 11-, 12-crosscut cutting edge, the end face of 13-crosscut cutting edge, the secondary cutting edge of 14-, the secondary cutting edge of 15-lower surface; The secondary cutting edge of 16-upper surface, the movable former of 17-, 18-is former fixedly, 19-guide pillar, 20-through hole;
γ-guiding angle, the α 1-crosscut cutting edge point of a knife angle of wedge, α 2-founds the cutting blade mouth point of a knife angle of wedge, α 3-cutting edge angle, β 1-knife edge included angle, the secondary sword angle of β 2-, the cambered surface radius of the secondary cutting edge of R-lower surface.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Embodiment 1
Shown in Figure 1 is present embodiment sealing strip to be processed; Said sealing strip coats aluminium strip 3 by rubber 4 and constitutes; Also can be made up of rubber 4 coated steel bands, the otch that requires to punch out comprises vertical tangent plane 1 and horizontal tangent plane 2, forms a slanted angle between said vertical tangent plane 1 and horizontal tangent plane 2 crossing intersections that form and the sealing strip bearing of trend; This angle can be 90 °, also can be any acute angle; Said vertical tangent plane 1 intersects with horizontal tangent plane 2 and forms the tangent plane angles, and this tangent plane angle can be arbitrarily angled except that 0 ° and 180 ° in 0 ° ~ 180 ° scopes; Said vertical tangent plane 1 is that circular arc is connected with horizontal tangent plane 2 intersections, also can connect for straight line; Require said vertical tangent plane 1 and laterally tangent plane 2 surfacings, exoskeletal distortion.
Shown in Figure 2 is the blanking units of the described anti-band skeleton weather strip for automobile machining deformation of the utility model; Comprise former 7, pressing plate 5 and cutter 6; On said former 7, be provided with groove 9, be used to place sealing strip, the shape of said groove 9 matches with the contour shape of sealing strip to be processed; See Fig. 4 for details, sealing strip to be processed is inserted in the said groove 9 by an end of said groove 9;
Above said former 7, be provided with liftable pressing plate 5, be used to compress sealing strip, and said pressing plate 5 is shaped to the shape that cooperates with the sealing strip profile phase with the part that the sealing strip surface contacts;
End at said former 7 is provided with guiding mechanism 8, intersects with said groove 9 to form a guiding angle γ, sees Fig. 3 for details, and it is 50 ° that said guiding angle γ is set in the present embodiment; Between said guiding mechanism 8 and the said cutter 6 for being slidingly matched; Be used to guide said cutter 6 to accomplish die-cut moving along the bearing of trend of said guiding mechanism 8; Said sealing strip extends to said guiding mechanism 8 and said groove 9 intersections, and said guiding mechanism 8 motion realization in said cutter 6 edges are die-cut to said sealing strip;
It is 40 ° that the crosscut cutting edge point of a knife locking angle 1 that forms between end face and said cutter 6 bottom surfaces of said crosscut cutting edge 12 is set in the present embodiment; The upright cutting blade mouth point of a knife locking angle 2 that forms between the end face of said upright cutting blade mouth 10 and said cutter 6 sides is 40 °; Be that said crosscut cutting edge point of a knife locking angle 1 is identical with said upright cutting blade mouth point of a knife locking angle 2 sizes, see Fig. 6 and Fig. 8 for details; Said upright cutting blade mouth 10 is in the same plane with the side of said cutter 6; And on the direction of extending perpendicular to said guiding mechanism 8 near said pressing plate 5; And and the end face of said pressing plate 5 near cutter 6 between form the gap; Said upright cutting blade mouth 10 and said pressing plate 5 near the gap between the end face of cutter 6 less than 1mm; Can reduce when die-cut stepping down of elastomeric material on the sealing strip like this, the problem that surface irregularity and skeleton deform appears in the vertical tangent plane that helps further to prevent sealing strip.It is 0.5mm near the gap between the end face of cutter 6 that said upright cutting blade mouth 10 and said pressing plate 5 are set in the present embodiment;
Said crosscut cutting edge 12 is in the same plane with the bottom surface of said cutter 6; Form a knife edge included angle β 1 between the said crosscut cutting edge 12 and said cutter 6 directions of motion; Said crosscut cutting edge 12 is tilted to the direction of advance of said cutter 6 die-cut motions away from an end of said pressing plate 5, and said knife edge included angle β 1 intersects the guiding angle γ that forms less than said guiding mechanism 8 and said groove 9, and it is 10 ° with the knife edge included angle β 1 that said cutter 6 directions of motion form that said crosscut cutting edge 12 is set in the present embodiment; The differential seat angle that is said guiding angle γ and said knife edge included angle β 1 is greater than 5 °; Make to form one between the bearing of trend of said crosscut cutting edge 12 and said groove 9 when die-cut greater than 5 ° angle, like this when die-cut, the motion of the bearing of trend of said cutter 6 said guiding mechanism 8 in driving force effect lower edge; Said crosscut cutting edge 12 contacts with sealing strip earlier progressively cutting takes place laterally; The said upright cutting blade mouth 10 in cutting part back just contacts with sealing strip straight-cut takes place, and greatly reduces the impulsive force of 6 pairs of sealing strips of cutter, obtains sealing strip otch as shown in Figure 1 after the die-cut completion; Cut surface is smooth, exoskeletal distortion;
The tool base at said crosscut cutting edge 12 places and the flank of tool at said upright cutting blade mouth 10 places intersect formation one cutting edge angle 3, see Fig. 7 for details, and it is 80 ° that said cutting edge angle 3 is set in the present embodiment.
Embodiment 2
The blanking units of the described anti-band skeleton weather strip for automobile machining deformation of the utility model; Comprise former 7, pressing plate 5 and cutter 6; On said former 7, be provided with groove 9, be used to place sealing strip, the shape of said groove 9 matches with the contour shape of sealing strip to be processed;
Above said former 7, be provided with liftable said pressing plate 5, be used to compress sealing strip, said pressing plate 5 can move up and down under power drive, and said pressing plate 5 is shaped to the shape that cooperates with the sealing strip profile phase with the part that the sealing strip surface contacts;
End at said former 7 is provided with guiding mechanism 8, intersects with said groove 9 to form a guiding angle γ, and it is 90 ° that said guiding angle γ is set in the present embodiment;
Between said guiding mechanism 8 and the said cutter 6 for being slidingly matched; Be used to guide said cutter 6 to accomplish die-cut moving along the bearing of trend of said guiding mechanism 8; Said sealing strip extends to said guiding mechanism 8 and said groove 9 intersections, and said guiding mechanism 8 motion realization in said cutter 6 edges are die-cut to said sealing strip;
The tool base at said crosscut cutting edge 12 places and the flank of tool at said upright cutting blade mouth 10 places intersect formation one cutting edge angle 3, and it is 90 ° that said cutting edge angle 3 is set in the present embodiment; Said crosscut cutting edge 12 is that straight line is connected with said upright cutting blade mouth 10 intersections; The end face of said crosscut cutting edge 12 is that same straight line is connected with the end face intersection of said upright cutting blade mouth 10; The end face of the end face of said crosscut cutting edge 12 and said upright cutting blade mouth 10 intersects; Front end at said cutter 6 bodies forms a vee; The crosscut cutting edge point of a knife locking angle 1 that forms between the end face of said crosscut cutting edge 12 and said cutter 6 bottom surfaces is 40 °, and the upright cutting blade mouth point of a knife locking angle 2 that forms between the end face of said upright cutting blade mouth 10 and said cutter 6 sides is 10 °.
As disposable embodiment; Present embodiment is on the basis of the foregoing description; Said crosscut cutting edge 12 is set in the present embodiment replaces with 45 ° with the knife edge included angle β 1 that said cutter 6 directions of motion form, promptly said knife edge included angle β 1 equals 5 ° with the differential seat angle of said guiding angle γ.
As disposable embodiment, present embodiment is on the basis of the foregoing description, and the flank of tool at the tool base at the cutting edge of crosscut described in the present embodiment 12 places and said upright cutting blade mouth 10 places intersects the cutting edge angle 3 that forms and replaces with 30 °.
As disposable embodiment, present embodiment is on the basis of the foregoing description, and the flank of tool at the tool base at the cutting edge of crosscut described in the present embodiment 12 places and said upright cutting blade mouth 10 places intersects the cutting edge angle 3 that forms and replaces with 120 °.
As disposable embodiment, present embodiment is on the basis of the foregoing description, and the flank of tool at the tool base at the cutting edge of crosscut described in the present embodiment 12 places and said upright cutting blade mouth 10 places intersects the cutting edge angle 3 that forms and replaces with 160 °.
Further, present embodiment is on the basis of the foregoing description, on the side of said groove 9 away from said cutter 6 directions of advance; And further be provided with secondary cutting edge 14 with said guiding mechanism 8 intersections; See Fig. 9, Figure 10 and Figure 11 for details, said secondary cutting edge 14 is relative with said crosscut cutting edge 12, and cooperates with said crosscut cutting edge 12 formation shearings; The upper surface of said secondary cutting edge 14 is the plane; And be on the same horizontal plane with the end face of said guiding mechanism 8, seeing Figure 12 and Figure 13 for details, said secondary cutting edge 14 forms a secondary sword angle β 2 with said groove 9 bearing of trends; Said secondary cutting edge 14 is tilted away from the opposite direction that an end of said pressing plate 5 advances to said cutter 6 die-cut motions on said groove 9 bearing of trends, see Figure 14 and Figure 15 for details.It is 2 ° with the secondary sword angle β 2 that said groove 9 bearing of trends form that said secondary cutting edge 14 is set in the present embodiment, and the lower surface of said secondary cutting edge 14 is a cambered surface, sees Figure 13 for details, and the cambered surface radius R of said secondary cutting edge 14 lower surfaces is 0.5mm.The blanking units of present embodiment carries out when die-cut sealing strip; Said secondary cutting edge 14 forms to shear with said crosscut cutting edge 12 and cooperates; Simultaneously sealing strip is laterally progressively cut; Further reduce the impulsive force of 6 pairs of sealing strips of said cutter, can prevent the otch generation surface irregularity that sealing strip is processed and the phenomenon of framework deformation, especially be fit to the band skeleton weather strip for automobile that processing has the complicated abnormal shape face.
As disposable embodiment, present embodiment is provided with said secondary cutting edge 14 and replaces with 5 ° with the secondary sword angle β 2 that said groove 9 bearing of trends form on the basis of the foregoing description in the present embodiment.The lower surface of said secondary cutting edge 14 is a cambered surface, and the cambered surface radius R of said secondary cutting edge 14 lower surfaces is 5mm.
As disposable embodiment, present embodiment is on the basis of the foregoing description, and the lower surface of said secondary cutting edge 14 replaces with the taper cambered surface, and the summit is positioned at said secondary cutting edge 14 end near said pressing plate 5 on said groove 9 bearing of trends.Upper surface and lower surface and the said former 7 that said secondary cutting edge 14 is set in the present embodiment is shaped to one.
As disposable embodiment; Present embodiment is on the basis of the foregoing description; The upper surface of said secondary cutting edge 14 and lower surface and said former 7 are shaped to one and replace with the parts with secondary cutting edge 14 structures are installed on the said former 7, and the upper surface of said secondary cutting edge 14 parts and end face with said guiding mechanism 8 are on the same horizontal plane.
Further; Present embodiment is on the basis of the foregoing description, and said former 7 is divided into movable former 17 and fixing former 18, and is shown in figure 16; Be connected with guide pillar 19 on the said fixedly former 18; Like Figure 17, Figure 18 and shown in Figure 19, said movable former 17 is provided with the through hole 20 that matches with said guide pillar 19, and is shown in figure 20; Said movable former 17 can slidably reciprocate at the said guide pillar 19 in direction upper edge that extends perpendicular to said groove 9 under power drive, and Figure 23 is the sketch map behind said movable former 17 and said fixedly former 18 matched moulds.When die-cut; Earlier sealing strip to be processed is placed in the said fixedly former 18; Said guide pillar 19 slides to said fixedly former 18 said then movable former 17 in the power drive lower edge, to said movable former 17 and said fixedly former 18 matched moulds, said sealing strip is compressed, and said then pressing plate 5 compresses sealing strip under power drive up; Said cutter 6 is said guiding mechanism 8 motions in the power drive lower edge, and realization is die-cut to sealing strip.
Certainly; The slanted angle that forms between intersections that also can intersect formation and the sealing strip bearing of trend according to the vertical tangent plane 1 and the horizontal tangent plane 2 of the said sealing strip of reality, it is identical with said slanted angle size with the guiding angle γ that said groove 9 intersects formation to set said guiding mechanism 8; Also can be according to vertical tangent plane 1 of the sealing strip of reality and the horizontal tangent plane angle between the tangent plane 2, the tool base of setting said crosscut cutting edge 12 places is identical with said tangent plane corner dimension with the cutting edge angle 3 that the flank of tool at said upright cutting blade mouth 10 places intersects formation.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (15)
1. the blanking units of an anti-band skeleton weather strip for automobile machining deformation comprises former (7), pressing plate (5) and cutter (6), it is characterized in that,
On said former (7), be provided with groove (9), be used to place sealing strip, the shape of said groove (9) matches with the contour shape of sealing strip to be processed;
Be provided with liftable pressing plate (5) in the top of said former (7), be used to compress sealing strip, said pressing plate (5) is shaped to the shape that cooperates with the sealing strip profile phase with the part that the sealing strip surface contacts;
End at said former (7) is provided with guiding mechanism (8); Intersect formation one guiding angle (γ) with said groove (9); Between said guiding mechanism (8) and the said cutter (6) for being slidingly matched; Be used to guide said cutter (6) to accomplish die-cut motion along the bearing of trend of said guiding mechanism (8); Said sealing strip extends to said guiding mechanism (8) and said groove (9) intersection, and said cutter (6) edge said guiding mechanism (8) motion realization is die-cut to said sealing strip;
Said cutter (6) has crossing crosscut cutting edge (12) and upright cutting blade mouth (10); And between the said guiding mechanism (8) for being slidingly matched; Said upright cutting blade mouth (10) is in the same plane with the side of said cutter (6); And on the direction of extending perpendicular to said guiding mechanism (8) near said pressing plate (5); And and the end face of said pressing plate (5) near said cutter (6) between form the gap; Said crosscut cutting edge (12) is in the same plane with the bottom surface of said cutter (6); Form a knife edge included angle (β 1) between the said crosscut cutting edge (12) and said cutter (6) direction of motion, said crosscut cutting edge (12) is tilted to the direction of advance of the die-cut motion of said cutter (6) away from an end of said pressing plate (5), said knife edge included angle (β 1) intersects the guiding angle (γ) that forms less than said guiding mechanism (8) and said groove (9); The flank of tool at the tool base at said crosscut cutting edge (12) place and said upright cutting blade mouth (10) place intersects and forms a cutting edge angle (α 3), and said cutting edge angle (α 3) is interior arbitrarily angled except that 0 ° and 180 ° of 0 ° ~ 180 ° scopes.
2. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 1 is characterized in that, it is 50 ° ~ 90 ° that said guiding mechanism (8) intersects the guiding angle (γ) that forms with said groove (9).
3. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 1 and 2 is characterized in that, said crosscut cutting edge (12) is 10 ° ~ 60 ° with the knife edge included angle (β 1) that said cutter (6) direction of motion forms.
4. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 3 is characterized in that, said guiding angle (γ) is equal to or greater than 5 ° with the differential seat angle of said knife edge included angle (β 1).
5. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 1 and 2 is characterized in that, said upright cutting blade mouth (10) and said pressing plate (5) near the gap between the end face of cutter (6) less than 1mm.
6. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 5; It is characterized in that; Said crosscut cutting edge (12) is that circular arc is connected with said upright cutting blade mouth (10) intersection, and the end face of said crosscut cutting edge (12) is that same circular arc is connected with the end face intersection of said upright cutting blade mouth (10).
7. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 6; It is characterized in that; The end face of the end face of said crosscut cutting edge (12) and said upright cutting blade mouth (10) intersects, at vee of front end formation of said cutter (6) body.
8. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 7; It is characterized in that; Form the crosscut cutting edge point of a knife angle of wedge (α 1) between the end face of said crosscut cutting edge (12) and said cutter (6) bottom surface; The said crosscut cutting edge point of a knife angle of wedge (α 1) is 10 ° ~ 40 °, forms the upright cutting blade mouth point of a knife angle of wedge (α 2) between the end face of said upright cutting blade mouth (10) and said cutter (6) side, and the said upright cutting blade mouth point of a knife angle of wedge (α 2) is 10 ° ~ 40 °.
9. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 8 is characterized in that, the said crosscut cutting edge point of a knife angle of wedge (α 1) is identical with the said upright cutting blade mouth point of a knife angle of wedge (α 2) size.
10. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 1 and 2; It is characterized in that; On the side of said groove (9) away from said cutter (6) direction of advance; And further be provided with secondary cutting edge (14) with said guiding mechanism (8) intersection, relative with said crosscut cutting edge (12), and form to shear with said crosscut cutting edge (12) and cooperate; The upper surface of said secondary cutting edge (14) is the plane; And be on the same horizontal plane with the end face of said guiding mechanism (8), said secondary cutting edge (14) forms a secondary sword angle (β 2) with said groove (9) bearing of trend, and said secondary cutting edge (14) is tilted away from the opposite direction that an end of said pressing plate (5) advances to the die-cut motion of said cutter (6) on said groove (9) bearing of trend.
11. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 10 is characterized in that, said secondary cutting edge (14) is 2 ° ~ 5 ° with the secondary sword angle (β 2) that said groove (9) bearing of trend forms.
12. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 11 is characterized in that the lower surface of said secondary cutting edge (14) is a cambered surface.
13. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 12 is characterized in that, the cambered surface radius (R) of said secondary cutting edge (14) lower surface is 0.5 ~ 5mm.
14. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 12; It is characterized in that; The lower surface of said secondary cutting edge (14) is the taper cambered surface, and the summit is positioned at said secondary cutting edge (14) end near said pressing plate (5) on said groove (9) bearing of trend.
15. the blanking units of anti-band skeleton weather strip for automobile machining deformation according to claim 10; It is characterized in that; Said former (7) comprises movable former (17) and fixing former (18); Said movable former (17) is connected through guide pillar (19) with said fixedly former (18), and said movable former (17) slides at the said guide pillar in direction upper edge (19) that extends perpendicular to said groove (9) under power drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249441 CN202572517U (en) | 2012-05-30 | 2012-05-30 | Punching device for preventing machining deformation of car seal strip with framework |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249441 CN202572517U (en) | 2012-05-30 | 2012-05-30 | Punching device for preventing machining deformation of car seal strip with framework |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202572517U true CN202572517U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249441 Withdrawn - After Issue CN202572517U (en) | 2012-05-30 | 2012-05-30 | Punching device for preventing machining deformation of car seal strip with framework |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202572517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689330A (en) * | 2012-05-30 | 2012-09-26 | 北京万源瀚德汽车密封系统有限公司 | Punching device preventing automobile sealing strip with skeleton from machining deformation |
-
2012
- 2012-05-30 CN CN 201220249441 patent/CN202572517U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689330A (en) * | 2012-05-30 | 2012-09-26 | 北京万源瀚德汽车密封系统有限公司 | Punching device preventing automobile sealing strip with skeleton from machining deformation |
| CN102689330B (en) * | 2012-05-30 | 2014-04-30 | 北京万源瀚德汽车密封系统有限公司 | Punching device preventing automobile sealing strip with skeleton from machining deformation |
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Granted publication date: 20121205 Effective date of abandoning: 20140430 |
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