Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part and a kind of low cost of manufacture is provided, working method is the manufacture method and the assembly tooling of composite profile automobile glass former and this composite profile automobile glass former easily.
For addressing the above problem, the present invention improves existing integral automobile glass tempering former, in the past all-in-one-piece tempering former is made into the combined type automobile glass tempering former that is combined by a plurality of parts.
This composite profile automobile glass former is, comprise upper die and lower die, its structural feature is: described upper die and lower die are the air grid hinge of free form surface by a plurality of that are distributed with a plurality of air grids hole thereon respectively, around each air grid hinge gusset plate all around, and base is formed, described air grid hinge is by forming along the air grid sheet of its a slice at least that vertically distributes, by air grid hinge, gusset plate around the air grid hinge and base constitute the cooling air chamber, constitute the model face of upper die and lower die jointly by a plurality of outside surface by certain spaced air grid hinge.
Tempering former of the present invention utilizes the thought of dimensionality reduction and is concentrated by operation and is converted to operation dispersive thought, the air grid work profile of space type is converted to the single air grid hinge and the air grid sheet of the discrete type of being convenient to process, frock clamp by special use is windshield mold for toughing on chip joining of air grid again, thereby realized guaranteeing under the prerequisite of service requirements, produced with low cost, working method composite profile automobile glass former easily.
Arrangement pitch between the two adjacent air grid hinges is 10-20mm.
The optimum length of each air grid sheet is 250-400mm.
Constituting air grid hole on the air grid hinge of profile is arranged as laterally is staggered uniform distribution with air grid hole longitudinally on profile.
Spacing between the air grid hole of the lengthwise direction of the air grid sheet on the profile is 25-40mm, and the spacing between the two adjacent horizontal air grid holes is 20-40mm.
The optimum aperture in described air grid hole is Φ 7 ± 0.1mm.
Described air grid sheet adopts aluminum alloy materials to make.Aluminum alloy materials has light weight, cutting ability is good, is easy to the advantage of processing and assembling.
The working method of composite profile automobile glass former of the present invention is:
1: utilize Computer-aided Geometric Design that glass curve to be processed is offset certain distance along normal direction respectively, with patrix profile and counterdie profile as the tempering former;
2: on Computer Aided Design Platform, to patrix profile and counterdie profile difference cloth hole;
3: patrix profile and counterdie profile are carried out the discretize processing respectively:
(1) use the certain branches such as distance in every interval, plane that all intersect with upper and lower model face to cut upper and lower model face;
(2) the air grid hinge model of the patch of getting upper and lower model face in every line and assembling to be processed as, each air grid hinge also can vertically be divided into by the air grid sheet of a slice at least along it to be formed;
4: the blank sheet of getting suitable dimension is processed into free profile on three axis numerically controlled machine, and the shape of discrete single air grid sheet is identical in this free profile and the upper and lower model face.
5: after the blank sheet that profile is machined adopts special-purpose clamping frock clamping, in the air grid hole that processes on the three axis numerically controlled machine on the air grid sheet, described clamping frock processing on the air grid sheet during different air grid hole, can drive the workpiece conversion with respect to the machine tool position so that the axis direction in the air grid hole that cutter processes is consistent with the normal orientation of the profile at this some place.
6: the air grid sheet that processes is carried out aggregate erection;
(1) install earlier base in the upper die and lower die, and air grid hinge around the gusset plate;
(2) then utilize longitudinal register function in the assembly tooling, air grid sheet is assembled into air grid hinge.
(3) then utilize the transverse orientation function of assembly tooling again, air grid hinge is assembled into upper and lower profile after, they are fixed.
In this step (2) step be come according to the situation of air grid hinge fixed, when air grid hinge when it is not vertically cut apart again, also be its when in fact only forming by a slice air grid sheet, then do not need to carry out air grid sheet is assembled into the program of air grid hinge again, and can directly carry out (3) assembling that goes on foot.
Patrix profile and counterdie profile are being carried out discretize respectively when handling, the plane of using the certain branches such as distance in every interval, plane that intersect with upper and lower model face to cut upper and lower model face can be:
On Computer Aided Design Platform, obtain the square enveloping solid of envelope patrix profile and counterdie profile earlier, then with the upper and lower end face that is parallel to branch cutting enveloping solids such as enveloping solid one lateral profile intervals certain distance.
The air grid hinge model and the air grid sheet that adopt this discrete way to obtain, its each patch can accomplish that geometrical dimension is even as much as possible, avoid the processing that excessive size scattered error brings and the inconvenience of assembling, guarantee that simultaneously the toughened glass of producing meets company standard or national standard.
The method of manufacturing tempering former of the present invention is by rational dicing method discretize with glass free curve, each air grid sheet as a processing object independently, making needs to adopt the monoblock type tempering former method of five processing to be converted into three common machine toolings of face employing originally, then by assembly tooling each air grid sheet is assembled into the tempering former consistent with the glass curve shape again, thereby can under the prerequisite that guarantees the product precision, produce qualified toughened glass product, significantly reduce the production cost of toughened glass simultaneously.
The described design that can be used for above-mentioned upper and lower model face, and the software of the Computer-aided Geometric Design of perforate design on the model face have a lot, it can be 1. applying three-dimensional moulding platform (as Pro/E, UG etc.) modeling; 2. using the CAGD technology, is that surface reconstruction is carried out on the basis with reference mark or control line, and utilizes their perforates on the model face that builds.
When obtain when the rectangle enveloping solid, then get and be parallel to that lateral section of place, the long limit of enveloping solid and come the five equilibrium enveloping solid, to reduce the quantity of air grid sheet.
Optimal spacing between the five equilibrium enveloping solid plane is 10-20mm.
The optimum length of each air grid sheet is 250-400mm.
Described employing Computer-aided Geometric Design with glass curve to be processed along the distance of normal direction skew is respectively, if thickness of glass is t, at first lower surface on glass the aperture of the upper and lower mould during according to tempering apart from the respectively equidistant skew of d (d-t)/2, to obtain the upper and lower model face of windshield mold for toughing.
Aperture distance wherein rule of thumb value is determined, is generally 50mm.
Being distributed as of air grid hole on the described upper and lower model face, the spacing on the model face between the air grid hole of the lengthwise direction of air grid sheet is 25-40mm, the spacing between the two adjacent horizontal air grid holes is 20-40mm.
The lengthwise direction of model face and horizontal determine to determine with the direction of used branch glass-cutting curved surfaces such as plane, the direction that is parallel to cutting planes is defined as vertically, with that direction of Plane intersects be laterally, its purpose is for the ease of setting forth in specification sheets, and understands.
When boring, can on common three axis numerically controlled machine, process in order to make the blank sheet identical with the curve form of air grid sheet, must adopt special-purpose clamping frock to finish, described special-purpose clamping frock comprises clamp body, positioning element, gripping unit and dividing apparatus, its structural feature is: described positioning element and gripping unit can drive the corresponding angle of Workpiece Rotating on it under the drive of dividing apparatus, changing the position of the relative cutter of workpiece, thereby make the axis direction in the air grid hole that processes consistent with the normal orientation of the profile at this some place.
In use, the clamp body of this clamping frock is installed on the worktable of lathe, relies on the platen level then or move vertically under the main tapping and hole.When needs bore next air grid hole, rotation dividing apparatus then, positioning element and gripping unit that dividing apparatus just can drive on it rotate corresponding angle, changing workpiece relatively and the position of cutter, thereby make the axis direction in the air grid hole that processes consistent with the normal orientation of the profile at this some place.
Described positioning element is served as reasons, and transhipment is dull and stereotyped to be formed, the dull and stereotyped chute that is provided with more than 2 of transhipment, and described gripping unit is made up of threaded fastener and compressing tablet, and threaded fastener can move in chute to adjust to suitable position by the compressing tablet clamping work pieces.The dull and stereotyped flat board of described transhipment for the motion that rotates.
Threaded fastener is a bolt.
Because each air grid sheet shape is free form surface, and each air grid sheet is different, therefore the chute that can supply threaded fastener to slide need be set thereon on the transhipment flat board, so just can be according to the shape of different air grid sheets the position of corresponding adjustment threaded fastener in chute, the free form surface shape of itself and air grid sheet is adapted.
Chute on the described transhipment flat board is 3.
Described dividing apparatus is formed for the paired gear that has indexing plate thereon, and indexing plate is arranged on the driving toothed gear, and driving toothed gear is arranged on the clamp body, and follower gear then is arranged on the transhipment flat board.
By rotating driving toothed gear, and utilize the rotational angle of the indexing plate control driving toothed gear on the driving toothed gear, just can drive follower gear and rotate, transport flat board and rotate, rotate with the workpiece that drives on it thereby drive.
Described gear is a pair of, and is that the speed ratio of driving toothed gear and follower gear is less than 1 geartransmission.
Adopt the geartransmission of this form, power that just can be less drives workpiece and rotates.
Described dividing apparatus can also be made up of existing general circular dividing table, and the rotating disk of circular dividing table is in transmission connection to drive the transhipment treadmill exercise with the transhipment flat board.
Because therefore the air grid sheet free form surface must adopt special assembly tooling to assemble.Assembly tooling of the present invention is, it comprises: support, positioning element, gripping unit, dividing apparatus and arrangement for adjusting height, positioning element and gripping unit can rotate a certain angle under the drive of dividing apparatus so that the air grid sheet on it is adjusted to suitable position is connected with another air grid sheet, and positioning element and gripping unit also can be done upper and lower motion to adjust air grid hinge on it to suitable height under the drive of arrangement for adjusting height simultaneously.
When the assembling air grid hinge, first: the air grid sheet that needs earlier a slice to be processed is clamped on the worktable, another sheet is fixed on the frock, then, adjust dividing apparatus, find the installation site of this air grid sheet, can be it and the air grid sheet that clamps riveted joint, then the air grid hinge (containing the air grid sheet more than 2) of riveted joint is clamped on the worktable again, continues to install next air grid sheet.Second: when air grid hinge is mounted to profile, earlier air grid hinge is fixed on the frock, adjust dividing apparatus and can find its position that is positioned at longitudinal direction on upper and lower model face, then adjust the height of positioning element and gripping unit again by arrangement for adjusting height, make it drive air grid hinge to corresponding height location, to carry out the installation of air grid hinge.Therefore assembly tooling of the present invention can make the assembling process of the air grid sheet of composite profile automobile glass former of the present invention become simple relatively, but can guarantee to assemble simultaneously required precision again.
Described positioning element is served as reasons, and transhipment is dull and stereotyped to be formed, the dull and stereotyped chute that is provided with more than 2 of described transhipment, described gripping unit is made up of threaded fastener and compressing tablet, and threaded fastener can move in chute to adjust to suitable position by the compressing tablet clamping work pieces.
Threaded fastener is a bolt.
Chute on the described transhipment flat board is 3.
Described dividing apparatus is formed for the paired gear that has indexing plate thereon, and indexing plate is arranged on the driving toothed gear, and driving toothed gear then is arranged on the mounting block that is fixed in support, and follower gear then is arranged on the transhipment flat board.
By rotating driving toothed gear, and utilize the rotational angle of the indexing plate control driving toothed gear on the driving toothed gear, and just can drive follower gear and rotate, transport flat board and gripping unit rotates thereby drive, to drive the angle of the air grid sheet on it, find the installation site of this air grid sheet.
Described gear is a pair of, and is that the speed ratio of driving toothed gear and follower gear is less than 1 geartransmission.
Described dividing apparatus can also be made up of existing general circular dividing table, and the rotating disk of circular dividing table is in transmission connection to drive the transhipment treadmill exercise with the transhipment flat board.
Described arrangement for adjusting height is sleeved on the sleeve pipe that can do relative motion together mutually by two and constitutes that the form of support forms, and two telescopic relative movement drive positioning element and gripping unit is realized altitude mixture control by controlling.
Described arrangement for adjusting height can also be by two T-shape groove and supports of forming of T-shape slide block that are nested in together, tooth bar that is provided with on support and gear controlling organization are controlled the motion of the relative groove of slide block, also are provided with the accurately indexing plate of pinion angle of rotation on described gear.
Described positioning element and gripping unit are fixed on the support of T-shape slide block type, and described tooth bar then is fixed on the support of T-shape slide block type, and gear then is fixed on the support of T-shape groove type.
In use, by the gear of rotational fixation in T-shape groove type support, the gear that rotates just can drive the tooth bar that is fixed in T-shape slide block type support and do translational motion, thereby drives positioning element and gripping unit motion, to drive the extremely corresponding height of air grid hinge on it.
In sum, the invention has the advantages that:
Composite profile automobile glass former of the present invention, utilize dimensionality reduction thought, the discrete patch that turns to of the air grid profile that needs to adopt five processing originally, be assembled into unitized construction tempering former in stacked mode, identical with the monoblock type air grid on function, but production cost reduces greatly, and working method is convenient.
Embodiment
Fig. 1 is the structural representation of composite profile automobile glass former 1 of the present invention, it comprises patrix 11 and counterdie 12, upper die and lower die are respectively by 20 the air grid hinge that is free form surface 13 that is distributed with 800 air grid holes 132 thereon, described air grid hinge 13 is by forming along its air grid sheet 131 of 4 that vertically distributes, and around each air grid hinge gusset plate 14 all around, and base 15 compositions, by air grid hinge 13, gusset plate 14 around it and base 15 constitute cooling air chamber 16, constitute the model face of patrix 11 and counterdie 12 jointly by a plurality of the outside surface of the air grid hinge of arranging at regular intervals 13.Base wherein is all-in-one-piece base 15, that is to say that all single air grid hinges and gusset plate on every side thereof all distribute on the same base.When this tempering former work, the high pressure cooling gas is blown into the cavity that air grid hinge, gusset plate and base surround by the inlet mouth on the base of this tempering former 151, and respectively by the air grid hole on each air grid sheet be blown between the upper die and lower die to be heated remollescent on glass, by the two-sided cooling gas that is blown into, soften glass is evenly cooled off and tempering fast.
The preparation method of above-mentioned described glass tempering former is as follows:
1: at first be three-dimensional model (also being glass curve) with given glass shown in Fig. 2 a, utilize Computer-aided Geometric Design (Pre/E), respectively along normal direction skew certain distance, this distance is definite by following mode with glass curve 4:
If thickness of glass is t, at first lower surface on glass the aperture of the upper and lower mould during according to tempering apart from the equidistant respectively skew A=of d (d-t)/2, with the upper and lower profile (shown in Fig. 2 b) that obtains windshield mold for toughing.Aperture distance wherein determines according to empirical value that usually the thickness of hypothesis glass is 4mm in the present embodiment, and the aperture between the upper and lower mould is 100mm.
2: on Computer Aided Design Platform (Pre/E), patrix profile 111 and counterdie profile 121 are laid air grid hole 132 respectively, following principle is followed in the laying in air grid hole: the spacing between the air grid hole of the lengthwise direction of the air grid sheet on the model face is 33mm, is 24mm along the spacing between the two adjacent horizontal air grid holes.The aperture of wind hole grid is Φ 7mm.
3: on three-dimensional design platform (Pre/E) software, patrix profile and counterdie profile are carried out the discretize processing respectively:
1) at first obtains the rectangle enveloping solid (shown in Fig. 2 c) of envelope patrix profile and counterdie profile;
2) use the branches such as profile intervals 12mm that are parallel to enveloping solid long side face A to cut the upper and lower end face B of envelope rectangular parallelepiped;
3) the air grid hinge model (shown in Fig. 2 d) of the patch of getting upper and lower model face in every line and assembling to be processed as one, air grid hinge can be this principle of 330mm vertically is divided into several again along it air grid sheet according to the length of each air grid sheet, if the longitudinal length of the air grid hinge that is dispersed out in the present embodiment is 1320mm, therefore again it is divided into along the longitudinal 4 air grid sheets, makes the longitudinal length of each air grid sheet remain on 330mm.
4: the aluminum alloy blank of getting suitable dimension is milled into free profile on three axis numerically controlled machine, the shape identical (shown in Fig. 2 e) of discrete single air grid sheet in this profile and the upper and lower model face.
5: get the aluminium flake identical and adopt three axis numerically controlled machine processing with the shape of the discrete single air grid sheet well of the upper and lower model face of tempering former;
The blank that profile precision work is finished adopts special-purpose clamping frock 2 (shown in Fig. 3,4) to carry out processing on three axis numerically controlled machine behind the clamping.This clamping frock 2 comprises clamp body 21, positioning element 22, gripping unit 23 and dividing apparatus 24.Described positioning element 22 is served as reasons and is transported dull and stereotyped 221 compositions, the dull and stereotyped long strip sliding groove 233 that is provided with 3 of described transhipment, described gripping unit 23 is to be made up of bolt 231 and compressing tablet 232, and the position that bolt can move in chute to adjust to free form surface suitable, that can adapt to different air grid sheet 131 clamps the air grid aluminium flake by compressing tablet.Described dividing apparatus 24 is formed for the paired gear that has indexing plate 2411 thereon, gear in this implementation column be a pair of driving toothed gear 241 with the speed ratio of follower gear 242 less than 1 gear, adopt the gear of this form, only need to adopt less power just can drive and be arranged at the follower gear rotation of transporting on the flat board, thereby driving transhipment flat board and gripping unit rotates, with reach the air grid aluminium flake that drives on it as required conversion with respect to the position of cutter, so that process the axis in air grid hole and air grid aluminium flake the perpendicular air grid hole of normal direction in this some place profile, and the angle of wherein rotating is to be decided by the indexing plate 2411 that is arranged on the driving toothed gear, and the driving toothed gear that is arranged on the clamp body can rotate corresponding angle with reference to the indexing plate on it according to the needs of processing.
6: the air grid sheet that processes is carried out aggregate erection (as Fig. 2 f);
(1) at first installs bottom and the sidewall that cools off air chamber, that is to say the end seat 15 and air grid hinge gusset plate 14 on every side installed earlier in the upper die and lower die;
(2) then utilize longitudinal register function in the assembly tooling, the air grid aluminium flake is assembled into air grid hinge 13.
(3) then utilize the transverse orientation function of assembly tooling again, air grid hinge is assembled into upper and lower model face 111,121, again they are fixed (as Fig. 2 g).
The structure of the special-purpose assembly tooling of adopting among the present invention 3 is that its structure is shown in Fig. 5,6,7,8:
It comprises: support 31, positioning element 32, gripping unit 33, dividing apparatus 34 and arrangement for adjusting height 35, positioning element and gripping unit can rotate a certain angle under the drive of dividing apparatus, and positioning element and gripping unit also can be done upper and lower motion to adjust the height of the workpiece on it under the drive of arrangement for adjusting height simultaneously.
Positioning element 32 is wherein served as reasons and is transported dull and stereotyped 321 compositions, transhipment dull and stereotyped 321 is provided with 3 chute 3211, described gripping unit 33 is made up of bolt 331 and compressing tablet 332, bolt can move in chute to adjust to suitable position and find the installation site of this air grid sheet, it and the air grid sheet that is fixed on the worktable can be riveted after fixing by compressing tablet.
Dividing apparatus 34 wherein for a pair of gear that has indexing plate 3411 thereon, and clamp body form, indexing plate 3411 is arranged on the driving toothed gear 341,341 of driving toothed gears are arranged on the mounting block 343 that is fixed in support 31, and 342 of follower gears are arranged in the transhipment dull and stereotyped 321.
Arrangement for adjusting height 35 wherein is T-shape groove and the support formed of T-shape slide block for being nested in always by two, the motion that tooth bar 352 that is provided with on support 31 and gear 351 controlling organizations are controlled the relative groove of slide block also is provided with the accurately indexing plate of pinion angle of rotation on described gear.Rack and pinion is arranged at respectively on the support 312 of the support 311 of T-shape groove type and T-shape slide block type.
During the assembling air grid hinge, (1) air grid sheet that a slice is processed is clamped on the worktable, another sheet is fixed on the frock, then, rotating disk finds the installation site of this air grid sheet to respective angles in the middle of adjusting, can be it and the air grid sheet that clamps riveted joint, then the air grid hinge (containing 2 aluminium flakes) of riveted joint is clamped on the worktable again, continues to install next bar.
When (2) the air grid chain being mounted to profile, need be fixed on chain on the frock, rotating disk can find its position at longitudinal direction to respective angles in the middle of adjusting, and the gear of adjusting the right side is to the corresponding position, can make the gear driven tooth bar, thereby drive air grid hinge to corresponding height location.
It is same as the prior art that present embodiment is not stated part.