CN102784887A - Lost foam casting die of transmission gear box body of heavy truck - Google Patents
Lost foam casting die of transmission gear box body of heavy truck Download PDFInfo
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- CN102784887A CN102784887A CN2012103043438A CN201210304343A CN102784887A CN 102784887 A CN102784887 A CN 102784887A CN 2012103043438 A CN2012103043438 A CN 2012103043438A CN 201210304343 A CN201210304343 A CN 201210304343A CN 102784887 A CN102784887 A CN 102784887A
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Abstract
The invention belongs to the technical field of dies and discloses a lost foam casting die of a transmission gear box body of a heavy truck. The lost foam casting die of the transmission gear box body of the heavy truck comprises an upper die and a lower die, wherein the upper die has an upper die air chamber (1); the lower die has a lower die air chamber (3); the cavity of the upper die air chamber (1) is provided with a reversely buckled upper die side core pulling insert (6) for molding an outer side surface of the transmission gear box body of the heavy truck as well as an upper die insert I (7) and an upper die insert II (13) which are used for molding two end faces of the transmission gear box body of the heavy truck; and the lower die air chamber comprises a lower die insert I (15) and a lower die insert II (21) which are used for molding an inner cavity surface of the transmission gear box body, a lower die side core pulling insert (20) for molding a partition board in middle of the transmission gear box body of the heavy truck, and a partially reversely buckled lower die side core pulling insert I (19) for molding the inner cavity of the lower die air chamber; and the lower die air chamber is further provided with an automatic ejecting mechanism in a foam shape. The die structure disclosed by the invention can ensure the steady molding and hard deformation of the foam shape, and also ensures smooth demolding of the foam shape.
Description
Technical field
The invention belongs to technical field of mold, mainly propose a kind of disappearance mould mould of heavy card gear box.
Background technology
The product that heavily blocks gear box mainly contains the requirement aspect four on market:
First: the production lot amount is big.
Second: presentation quality is good.
The 3rd: casting accuracy is high.
The the 4th: the weight good stability.
Market demands that lost foam casting process heavily blocks gear box more than satisfying, but the product that heavily blocks gear box has following seven problems to need to solve, like Fig. 1-product structure sketch map shown in Figure 6:
One: wall thickness 8mm, Foam Pattern is easy-formation not; Two: there is dividing plate the centre, and is porose in the middle of the dividing plate, need do the side core-pulling mold insert; Three: the two sides opening, Foam Pattern is yielding; Four: the product cavity space is big, and Foam Pattern is difficult for the demoulding; Five: the four sides sealing, product needed is divided 2 bonding combination formings; Six: divide 2 the local back-off that produces of product, mould need be made the side core-pulling mold insert, and seven: the axiality of the dead eye of the dead eye of central dividing plate and an end face must guarantee.
Summary of the invention
For addressing the above problem, the objective of the invention is to propose a kind of disappearance mould mould of heavy card gear box.
The present invention takes following technical proposals to realize its goal of the invention:
A kind of disappearance mould mould of heavy card gear box, described disappearance mould mould are two identical covers of structure; Described disappearance mould mould includes upper die and lower die; Described patrix has the patrix air chamber, and described patrix air chamber is the cuboid of internal cavities; Described counterdie has the counterdie air chamber, and described counterdie air chamber is the cuboid of internal cavities; Described patrix air chamber and counterdie air chamber are when patrix and counterdie closure, and the cavity between patrix air chamber and the counterdie air chamber forms mold cavity; Be provided with the patrix side core-pulling mold insert that heavily blocks gear box lateral surface back-off in order to moulding in the die cavity of said patrix air chamber; Corresponding described patrix side core-pulling mold insert is provided with the patrix cylinder of loosing core, and the said patrix cylinder of loosing core is positioned on the outer side surface of patrix air chamber;
Corresponding described patrix side core-pulling mold insert is provided with the patrix side core-pulling mold insert guiding mechanism that in the folding mold process, play the guiding role; Said patrix side core-pulling mold insert guiding mechanism includes copper dovetail and dovetail groove, and said copper dovetail is positioned at the last end face of patrix side core-pulling mold insert, is fixed on patrix air chamber inner chamber through CARBURIZING FURNACE FOR STAINLESS FASTENER, cooperates with the dovetail groove of being fixed on the patrix side core-pulling mold insert; Said dovetail groove is fixed on the last end face of patrix side core-pulling mold insert;
Corresponding described patrix side core-pulling mold insert is provided with patrix side core-pulling mold insert detent mechanism, and said patrix side core-pulling mold insert detent mechanism is made up of positioning boss on the patrix side core-pulling mold insert and the locating slot on the patrix air chamber; The bottom surface of patrix side core-pulling mold insert is provided with location-plate simultaneously;
Described patrix side core-pulling mold insert is a hollow-core construction; Be reserved with vapours through hole and cooling water through hole with the corresponding patrix air chamber of patrix side core-pulling mold insert side; The forming surface of patrix side core-pulling mold insert communicates with patrix air chamber inner chamber through the vent plug of inlaying on it, the vapours through hole and the cooling water through hole of patrix air chamber;
Described patrix air chamber has patrix mold insert I, the patrix mold insert II that moulding heavily blocks the gear box both ends of the surface, and described patrix mold insert I, patrix mold insert II lay respectively on corresponding two internal faces of patrix air chamber inner chamber, and fixes through CARBURIZING FURNACE FOR STAINLESS FASTENER; Described patrix mold insert I, patrix mold insert II are hollow structure; Described patrix air chamber is connected with mold cavity through the vent plug inlayed on patrix mold insert I, the patrix mold insert II and the preformed hole of patrix air chamber;
Described patrix air chamber has three locating slots, have on the described counterdie air chamber with the patrix air chamber on three reference columns cooperating of the locating slot that had; The detent mechanism that the reference column that is had on locating slot that is had on the patrix air chamber and the counterdie air chamber plays the role of positioning when being formed in disappearance mould mould matched moulds jointly;
Described counterdie air chamber has counterdie mold insert I, the counterdie mold insert II of the surface of internal cavity that is used for the moulding gear box, and described counterdie mold insert I, counterdie mold insert II are hollow structure, are positioned in the middle of the counterdie air chamber; The faying face of counterdie air chamber and counterdie mold insert I, counterdie mold insert II has the mosaic groove of counterdie mold insert I, counterdie mold insert II; On the groove wall of counterdie air chamber and counterdie mold insert I, counterdie mold insert II faying face, have steam hole through hole and cooling water through hole; Counterdie mold insert I, counterdie mold insert II forming surface are inlaid with vent plug, and mold cavity and counterdie air chamber are communicated;
Described counterdie air chamber has the counterdie side core-pulling mold insert II that moulding heavily blocks the gear box central dividing plate and the counterdie side core-pulling mold insert I of the local back-off of molding cavity; Said counterdie side core-pulling mold insert I and counterdie side core-pulling mold insert II are two; Described counterdie side core-pulling mold insert I and counterdie side core-pulling mold insert II are hollow structure; Reserve vapours through hole and cooling water through hole on the counterdie air chamber corresponding with counterdie side core-pulling mold insert I, counterdie side core-pulling mold insert II.
Described counterdie air chamber has the automatic ejecting mechanism of Foam Pattern, and said automatic ejecting mechanism comprises top board, push rod, ejects cylinder; Described top board is positioned at the die joint place of counterdie air chamber, around counterdie mold insert I, counterdie mold insert II, is provided with, and in the groove between counterdie air chamber and counterdie mold insert I, counterdie mold insert II, under four drives that eject cylinder, moves reciprocatingly; Reserve the through hole of vapours through hole and cooling water in the groove of counterdie air chamber; Reserve vapours through hole and cooling water through hole in the middle of the described top board; Described top board and ejecting between the cylinder through being threaded together on four connecting rods; Four connecting rods are positioned at top board and eject in the middle of the cylinder, and four connecting rods pass the copper guide pin bushing that is fixed on the counterdie air chamber simultaneously, and described copper guide pin bushing is corresponding with connecting rod; Have four, accomplish guiding location-plate; Described push rod is stressed according to Foam Pattern, is placed with 7 and is fixed on the top board and top board is accomplished the knockout course of Foam Pattern together; Described four eject cylinder and are fixed on counterdie air chamber inner chamber through CARBURIZING FURNACE FOR STAINLESS FASTENER, eject the piston direction of motion of cylinder through adjustment, accomplish the opening and closing movement of top board and push rod.
The location of described automatic ejecting mechanism and spacing positioning boss realization through carrying above the top board.
The upper surface conduct of said patrix air chamber is inlaid with the patrix sealing strip that seals in order between patrix air chamber and make-up machine template with the contact-making surface of make-up machine, the upper surface of said patrix air chamber.
The upper surface of said counterdie air chamber is as die joint, is inlaid with on the die joint of said counterdie air chamber in order to play the counterdie die joint sealing strip of buffering and sealing function when the upper and lower mould matched moulds.
The lower surface conduct of said counterdie air chamber and the contact-making surface of make-up machine are inlaid with the counterdie sealing strip that seals in order between counterdie air chamber and make-up machine template on the lower surface of said counterdie air chamber.
The outside of said patrix air chamber is fixed with automatic spray gun; The lower end of said automatic spray gun pass the patrix air chamber cavity, be inserted into mold cavity.
The disappearance mould mould of a kind of heavy card gear box that the present invention proposes can improve the stability and the intensity of Foam Pattern moulding, and can improve the shaping efficiency of Foam Pattern greatly, reduces operator's labour intensity; The gear box actinal surface is done the two pass lacing wire, prevents Foam Pattern because opening is excessive, and intensity is low excessively, and causes the distortion of Foam Pattern, guarantees the size stability of Foam Pattern actinal surface moulding; Particularly Foam Pattern adopts the technology that ejects automatically, makes Foam Pattern stressed even in knockout course, keeps synchronously; Can be good at guaranteeing the working strength of Foam Pattern; And can further improve the shaping efficiency of Foam Pattern, reduce working strength of workers, the uniformity of gear box moulding is improved significantly; And then guarantee casting dimension accuracy and serviceability, guarantee the axiality of dead eye of dead eye and the end face of central dividing plate simultaneously; Adopt automatic spray gun negative pressure to fill material, can guarantee the uniformity of Foam Pattern moulding, make wall thickness also very easily be full of die cavity for 8 millimeters; In sum; Mould of the present invention can be good at solving the problem in the Foam Pattern forming process of heavy type lorry transmission-gear box casing; Thereby make the heavy type lorry transmission-gear box casing adopt the casting of disappearance mold technique also to become possibility, and also more and more meet the development and the demand in market.
Description of drawings
Fig. 1-Fig. 6 is the structural representation of heavy truck gear box.
Fig. 7 is a structural representation of the present invention.
Fig. 8 is the structural representation of patrix among the present invention.
Fig. 9 is the structural representation of counterdie among the present invention.
Figure 10 is a die opening state sketch map of the present invention.
Figure 11 is patrix die opening state sketch map among the present invention.
Figure 12 is for showing the sketch map at copper dovetail position among the present invention.
Figure 13 is patrix side core-pulling mold insert sketch map among the present invention.
Figure 14 is a counterdie die opening state sketch map of the present invention.
Figure 15 is counterdie schematic bottom view among the present invention.
Among the figure: 1, patrix air chamber, 2, the patrix sealing strip, 3, the counterdie air chamber, 4, the patrix cylinder of loosing core, 5, location-plate 6, patrix side core-pulling mold insert; 7, patrix mold insert I, 8, locating slot, 9, patrix, 10, counterdie, 11, the copper dovetail; 12, dovetail groove, 13, patrix mold insert II, 14, heavy type lorry transmission-gear box casing Foam Pattern, 15, counterdie mold insert I; 16, top board, 17, reference column, 18, push rod, 19, counterdie side core-pulling mold insert I, 20, counterdie side core-pulling mold insert II; 21, counterdie mold insert II, 22, counterdie die joint sealing strip, 23, the counterdie sealing strip, 24, eject cylinder.
The specific embodiment
In conjunction with accompanying drawing and specific embodiment the present invention is explained:
As shown in Figure 7 and combine Fig. 8, Fig. 9, Figure 10, Figure 11, a kind of automatic disappearance mould mould of heavy card gear box, described disappearance mould mould include patrix 9 and counterdie 10; Described patrix has patrix air chamber 1, and described patrix air chamber 1 is the cuboid of internal cavities; Described counterdie 10 has counterdie air chamber 3, and described counterdie air chamber 3 is the cuboid of internal cavities; Described patrix air chamber 1 and counterdie air chamber 3 when patrix 9 and counterdie 10 are closed, between patrix air chamber 1 and the counterdie air chamber 3 not cavity in contact form the space apperance of heavily blocking gear box, i.e. mold cavity; Be provided with the patrix side core-pulling mold insert 6 that heavily blocks gear box lateral surface back-off in order to moulding in the die cavity of patrix air chamber 1; Described patrix side core-pulling mold insert 6 slides at patrix air chamber 1 inner chamber under patrix is loosed core the drive of cylinder 4; The described patrix cylinder 4 of loosing core is positioned on the outer side surface of patrix air chamber 1, fixes through CARBURIZING FURNACE FOR STAINLESS FASTENER, and looses core at patrix and to inlay sealing plate between cylinder 4 and the patrix air chamber 1; Described patrix side core-pulling mold insert 6 is under patrix is loosed core the effect of cylinder 4; Central motion to patrix air chamber 1 die cavity; Accomplish the matched moulds process of patrix side core-pulling mold insert 6; Or the motion done away from patrix air chamber 1 die cavity center of described patrix side core-pulling mold insert 6, accomplish the die sinking process of patrix side core-pulling mold insert 6; Corresponding described patrix side core-pulling mold insert 6 is provided with the patrix side core-pulling mold insert guiding mechanism that play the guiding role at the folding mold process.
In conjunction with Fig. 8 and Figure 12; Described patrix side core-pulling mold insert guiding mechanism includes copper dovetail 11 and dovetail groove 12; Copper dovetail 11 is positioned at the last end face of patrix side core-pulling mold insert 6; Be fixed on patrix air chamber 1 inner chamber through CARBURIZING FURNACE FOR STAINLESS FASTENER, the dovetail groove of being fixed with patrix side core-pulling mold insert 6 12 is used, and dovetail groove 12 is fixed on the last end face of patrix side core-pulling mold insert 6; Described patrix side core-pulling mold insert 6 is provided with detent mechanism, and patrix side core-pulling mold insert detent mechanism is made up of positioning boss on the patrix side core-pulling mold insert 6 and the locating slot on the patrix air chamber 1; The bottom surface of patrix side core-pulling mold insert 6 is provided with location-plate 5 simultaneously, and patrix side core-pulling mold insert 6 is implemented the location protective effect, makes the inner chamber motion of patrix side core-pulling mold insert 6 in sealing; Make the loose core centre of cylinder 4 of patrix corresponding simultaneously, guarantee the folding mould precision of patrix side core-pulling mold insert 6, guarantee heavily to block the presentation quality of gear box Foam Pattern 14 with the center of patrix side core-pulling mold insert 6.
In conjunction with Fig. 8 and Figure 11, described patrix side core-pulling mold insert 6 is a hollow-core construction; Vapours through hole and cooling water through hole are left in patrix air chamber 1 side corresponding with it; The forming surface of patrix side core-pulling mold insert 6 is through the vent plug inlayed on it and vapours through hole, the cooling water through hole of patrix air chamber 1; Communicate with patrix air chamber 1 inner chamber, guarantee patrix side core-pulling mold insert 6 molded surfaces throughput.
In conjunction with Fig. 8 and Figure 11; Described patrix air chamber 1 has the patrix mold insert I 7 and patrix mold insert II 13 that moulding heavily blocks the gear box both ends of the surface; Described patrix mold insert I 7 is positioned on the internal face of the corresponding both sides of patrix air chamber inner chamber with patrix mold insert II 13, with vertical setting of die joint of patrix air chamber 1, guarantees heavily to block the depth of parallelism of gear box both ends of the surface; And fix through CARBURIZING FURNACE FOR STAINLESS FASTENER, described patrix mold insert I 7 is a hollow structure with patrix mold insert II 13; Described patrix air chamber 1 is connected the throughput of assurance patrix mold insert I 7 and patrix mold insert II 13 molded surfaces through the vent plug of inlaying on patrix mold insert I 7 and the patrix mold insert II 13 with mold cavity with the preformed hole of patrix air chamber 1.
In conjunction with Fig. 8, Figure 14, the triangle of described patrix air chamber 1 has three locating slots 8, have on the described counterdie air chamber 3 with patrix air chamber 1 on three reference columns 17 cooperating of the locating slot 8 that had; The detent mechanism that the reference column 17 that is had on locating slot 8 that is had on the patrix air chamber 1 and the counterdie air chamber 3 plays the role of positioning when being formed in disappearance mould mould matched moulds jointly; Three locating slots and three not five equilibrium settings of reference column 1; Prevent mould installation dislocation, guarantee the formed precision of heavy type lorry transmission-gear box casing Foam Pattern 14.
In conjunction with Figure 14; Described counterdie air chamber 3 has the counterdie mold insert I 15 and counterdie mold insert II 21 that is fixed in counterdie air chamber 3; Described counterdie mold insert I 15 is a hollow structure with counterdie mold insert II 21, is positioned in the middle of the counterdie air chamber 3, is used for the surface of internal cavity of moulding gear box; The mosaic groove that the faying face of counterdie air chamber 3 and counterdie mold insert I 15 and counterdie mold insert II 21 has counterdie mold insert I 15 and counterdie mold insert II 21; On the groove surface of counterdie air chamber 3 and counterdie mold insert I 15 and counterdie mold insert II 21 faying faces, have steam through hole and cooling water through hole; Counterdie mold insert I 15 is inlaid with vent plug with counterdie mold insert II 21 forming surface; Mold cavity and counterdie air chamber 3 inner chambers are communicated, guarantee the throughput at counterdie mold insert I 15 and counterdie mold insert II 21 moulding positions.
In conjunction with Figure 14; Described counterdie air chamber 3 has the counterdie side core-pulling mold insert II 20 that moulding heavily blocks the gear box central dividing plate and the counterdie side core-pulling mold insert I 19 of the local back-off of molding cavity; Described counterdie side core-pulling mold insert I 19 and counterdie side core-pulling mold insert II 20 are positioned at the molded surface of counterdie mold insert I 15 and counterdie mold insert II 21, and the dovetail groove that carries through the dovetail that carries and counterdie mold insert I 15, counterdie mold insert II 21 is used; Described counterdie side core-pulling mold insert I 19 is a hollow structure with counterdie side core-pulling mold insert II 20; And contact with 21 3 of counterdie mold insert II with counterdie mold insert I 15; Reserve vapours and cooling water through hole 21 3 of counterdie mold insert I 15 and counterdie mold insert II; Described counterdie side core-pulling mold insert I 19 is inlayed vent plug with counterdie side core-pulling mold insert II 20 forming surface; Communicate with the inner chamber of counterdie air chamber 3 through counterdie air chamber 3 reservation vapours through holes and cooling water through hole, guarantee the throughput at counterdie side core-pulling mold insert I 19 and counterdie side core-pulling mold insert II 20 moulding positions.
In conjunction with Figure 14; Described counterdie air chamber 3 has the automatic ejecting mechanism of heavy type lorry transmission-gear box casing Foam Pattern; Said automatic ejecting mechanism comprises top board 16, push rod 18, ejects cylinder 24; Described top board 16 is at the die joint place of counterdie air chamber 3, be provided with along the border of counterdie mold insert I 15 and counterdie mold insert II 21, and and counterdie air chamber 3 and counterdie mold insert I 15 and counterdie mold insert II 21 between contact-making surface leave the 0.2mm gap; In the groove between counterdie air chamber 3 and counterdie mold insert I 15 and counterdie mold insert II 21; Reserve the through hole of vapours and cooling water in the groove of counterdie air chamber 3, reserve vapours and cooling water through hole in the middle of the described top board 16, help the vapours of counterdie air chamber 3 inner chambers and the molded surface that cooling water reaches counterdie mold insert I 15 and counterdie mold insert II 21.
Described top board 16 and ejecting between the cylinder 24 through being threaded together on four connecting rods; Four connecting rods are positioned at top board 16 and eject cylinder 24 centres; Four connecting rods pass the copper guide pin bushing that is fixed on counterdie air chamber 3 simultaneously; Described copper guide pin bushing is corresponding with connecting rod, has four, accomplishes the guiding to top board 16; Four eject cylinder and are fixed on counterdie air chamber 3 inner chambers through CARBURIZING FURNACE FOR STAINLESS FASTENER; Described top board 16 is at four die joints that eject the drive lower edge counterdie air chamber 3 of cylinder; Do the motion that makes progress perpendicular to die joint; 25mm moves upward; Accomplish ejecting in advance of heavy type lorry transmission-gear box casing Foam Pattern 14, make heavy type lorry transmission-gear box casing Foam Pattern 14 realize automatic demoulding, also accomplish ejecting in advance of counterdie side core-pulling mold insert I 19 and counterdie side core-pulling mold insert II 20 simultaneously; Counterdie side core-pulling mold insert I 19 and counterdie side core-pulling mold insert II 20 and counterdie mold insert I 15 and counterdie mold insert II 21 are also broken away from advance, more can guarantee the stability of heavy type lorry transmission-gear box casing Foam Pattern 14 moulding; Described top board 16 is done perpendicular to the prone motion of somatotype at four die joints that eject the drive lower edge counterdie air chamber 3 of cylinder, makes top board 16 returns, accomplishes an automatic demoulding process of heavy type lorry transmission-gear box casing Foam Pattern 14; Four eject cylinder and act on top board 16 simultaneously, guarantee top board 16 motions steadily, stressed evenly.
Described push rod 18 is 7; Demoulding force part according to Foam Pattern 14; Be fixed on the top board 16 through stainless steel bolt; Push rod 18 is consistent with top board 16 directions of motion, and assistant ceiling 16 is accomplished the automatic demoulding of heavy type lorry transmission-gear box casing Foam Pattern 14, more can guarantee heavy type lorry transmission-gear box casing Foam Pattern sticking to mould, indeformable not in knockout course.
The location of described automatic ejecting mechanism and spacing comprises two aspects: the location of top board 16 and spacing, the location of push rod 18 and spacing; Realize through the positioning boss that carries above the top board 16 and the locating slot that carries of counterdie mold insert II 21 location of said top board 16 and spacing; Reserve the gap of 0.2mm between the locating slot of the positioning table of said top board 16 and counterdie mold insert II 21, help the motion of top board 16; The location of said push rod 18 and the spacing jogger hole of processing through counterdie mold insert I 15 and counterdie mold insert II 21 are realized; Described jogger hole and push rod 18 should be the relation of 1:1 relatively; Leave the gap of 0.1mm between push rod 18 and the jogger hole, help the motion of push rod 18.
The upper surface conduct of said patrix air chamber 1 is inlaid with the patrix sealing strip 2 that seals in order between patrix air chamber 1 and make-up machine template with the contact-making surface of make-up machine, the upper surface of said patrix air chamber.
The upper surface of said counterdie air chamber 3 is as die joint, is inlaid with on the die joint of said counterdie air chamber 3 in order to play the counterdie die joint sealing strip 22 of buffering and sealing function when the upper and lower mould matched moulds.
The lower surface conduct of said counterdie air chamber 3 and the contact-making surface of make-up machine are inlaid with the counterdie sealing strip 23 that seals in order between counterdie air chamber 3 and make-up machine template on the lower surface of said counterdie air chamber.
The outside of said patrix air chamber 1 is fixed with automatic spray gun; The lower end of said automatic spray gun pass the patrix air chamber cavity, be inserted into mold cavity and contact with heavily blocking the gear box lateral surface, that accomplishes Foam Pattern fills the material action.
Described heavy card gear box disappearance mould mould cooperates make-up machine to use, and has the flange and the seal groove that contact with the cope match-plate pattern of make-up machine on the lateral surface of said patrix air chamber 1; And in seal groove, inlay two bar silica gel sealing bars; Have the flange and the seal groove that contact with the lower bolster of make-up machine on the lateral surface of said counterdie air chamber 3; And in seal groove, inlay two bar silica gel sealing bars, and the cope match-plate pattern of make-up machine is fixed in through the flange on the patrix air chamber 1 in the part of the upper die, and the cope match-plate pattern of make-up machine is a moving platen; The drive part of the upper die is up and down, accomplishes the mould open/close action; The part of the lower die is fixed on the lower bolster of make-up machine through the flange of counterdie air chamber 3, and the lower bolster of make-up machine is a solid plate, makes the part of the lower die of mould fixed.
Mould air chamber inner chamber will feed vapours; And pressurize; The sealing system of mould is very important like this, and the sealing system of mould comprises four parts, mosaic seal between patrix air chamber 1 and the make-up machine cope match-plate pattern; The lower bolster mosaic seal of counterdie air chamber 3 and make-up machine is accomplished the sealing between mould and the make-up machine; Mould die joint place up and down at counterdie air chamber 3 die joint place mosaic seals, accomplishes the sealing between the mould up and down, and patrix is loosed core and inlayed the silica gel sealing pad between cylinder 4 and patrix air chamber 1 outer wall, accomplishes the patrix sealing between cylinder and the patrix air chamber 1 of loosing core.
Claims (1)
1. disappearance mould mould that heavily blocks gear box, described disappearance mould mould is two identical covers of structure; Described disappearance mould mould includes upper die and lower die; Described patrix has patrix air chamber (1), and described patrix air chamber (1) is the cuboid of internal cavities; Described counterdie has counterdie air chamber (3), and described counterdie air chamber (3) is the cuboid of internal cavities; Described patrix air chamber (1) and counterdie air chamber (3) are when patrix and counterdie closure, and the cavity between patrix air chamber and the counterdie air chamber forms mold cavity; It is characterized in that: be provided with the patrix side core-pulling mold insert (6) that heavily blocks gear box lateral surface back-off in order to moulding in the die cavity of said patrix air chamber (1); Corresponding described patrix side core-pulling mold insert (6) is provided with the patrix cylinder (4) of loosing core, and the said patrix cylinder (4) of loosing core is positioned on the outer side surface of patrix air chamber (1);
Corresponding described patrix side core-pulling mold insert (6) is provided with the patrix side core-pulling mold insert guiding mechanism that in the folding mold process, play the guiding role; Said patrix side core-pulling mold insert guiding mechanism includes copper dovetail (11) and dovetail groove (12); Said copper dovetail (11) is positioned at the last end face of patrix side core-pulling mold insert (6); Be fixed on patrix air chamber inner chamber through CARBURIZING FURNACE FOR STAINLESS FASTENER, cooperate with the dovetail groove of being fixed on the patrix side core-pulling mold insert (12); Said dovetail groove (12) is fixed on the last end face of patrix side core-pulling mold insert (6);
Corresponding described patrix side core-pulling mold insert (6) is provided with patrix side core-pulling mold insert detent mechanism, and said patrix side core-pulling mold insert detent mechanism is made up of positioning boss on the patrix side core-pulling mold insert and the locating slot on the patrix air chamber; The bottom surface of patrix side core-pulling mold insert is provided with location-plate (5) simultaneously;
Described patrix side core-pulling mold insert (6) is a hollow-core construction; Be reserved with vapours through hole and cooling water through hole with the corresponding patrix air chamber of patrix side core-pulling mold insert side, the forming surface of patrix side core-pulling mold insert (6) communicates with patrix air chamber inner chamber through the vent plug of inlaying on it, the vapours through hole and the cooling water through hole of patrix air chamber;
Described patrix air chamber (1) has patrix mold insert I (7), the patrix mold insert II (13) that moulding heavily blocks the gear box both ends of the surface; Described patrix mold insert I (7), patrix mold insert II (13) lay respectively on corresponding two internal faces of patrix air chamber inner chamber, and fix through CARBURIZING FURNACE FOR STAINLESS FASTENER; Described patrix mold insert I (7), patrix mold insert II (13) are hollow structure; Described patrix air chamber (1) is connected with mold cavity through the vent plug inlayed on patrix mold insert I (7), the patrix mold insert II (13) and the preformed hole of patrix air chamber (1);
Described patrix air chamber has three locating slots, have on the described counterdie air chamber with the patrix air chamber on three reference columns cooperating of the locating slot that had; The detent mechanism that the reference column (17) that is had on locating slot (8) that is had on the patrix air chamber and the counterdie air chamber plays the role of positioning when being formed in disappearance mould mould matched moulds jointly;
Described counterdie air chamber has counterdie mold insert I (15), the counterdie mold insert II (21) of the surface of internal cavity that is used for the moulding gear box, and described counterdie mold insert I (15), counterdie mold insert II (21) are hollow structure, is positioned in the middle of the counterdie air chamber (3); The mosaic groove that the faying face of counterdie air chamber (3) and counterdie mold insert I (15), counterdie mold insert II (21) has counterdie mold insert I (15), counterdie mold insert II (21); On the groove wall of counterdie air chamber (3) and counterdie mold insert I (15), counterdie mold insert II (21) faying face, have steam hole through hole and cooling water through hole; Counterdie mold insert I (15), counterdie mold insert II (21) forming surface are inlaid with vent plug, and mold cavity and counterdie air chamber (3) are communicated;
Described counterdie air chamber (3) has the counterdie side core-pulling mold insert II (20) that moulding heavily blocks the gear box central dividing plate and the counterdie side core-pulling mold insert I (19) of the local back-off of molding cavity; Said counterdie side core-pulling mold insert I (19) and counterdie side core-pulling mold insert II (20) are two; Described counterdie side core-pulling mold insert I (19) and counterdie side core-pulling mold insert II (20) are hollow structure; Reserve vapours through hole and cooling water through hole on the counterdie air chamber corresponding with counterdie side core-pulling mold insert I (19), counterdie side core-pulling mold insert II (20);
Described counterdie air chamber (3) has the automatic ejecting mechanism of Foam Pattern, and said automatic ejecting mechanism comprises top board (16), push rod (18), ejects cylinder (24); Described top board (16) is positioned at the die joint place of counterdie air chamber; Around counterdie mold insert I (15), counterdie mold insert II (21), be provided with; In the groove between counterdie air chamber (3) and counterdie mold insert I (15), counterdie mold insert II (21), under four drives that eject cylinder, move reciprocatingly; Reserve the through hole of vapours through hole and cooling water in the groove of counterdie air chamber; Reserve vapours through hole and cooling water through hole in the middle of the described top board (16); Described top board (16) and ejecting between the cylinder (24) through being threaded together on four connecting rods; Four connecting rods are positioned at top board (16) and eject cylinder (24) centre; Four connecting rods pass the copper guide pin bushing that is fixed on the counterdie air chamber simultaneously; Described copper guide pin bushing is corresponding with connecting rod, has four, accomplishes the guiding to top board; Four eject cylinder and are fixed on counterdie air chamber inner chamber through CARBURIZING FURNACE FOR STAINLESS FASTENER, eject the piston direction of motion of cylinder through adjustment, accomplish the opening and closing movement of top board (16) and push rod (18); The location of described automatic ejecting mechanism and spacing positioning boss realization through carrying above the top board (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210304343.8A CN102784887B (en) | 2012-08-24 | 2012-08-24 | Lost foam casting die of transmission gear box body of heavy truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210304343.8A CN102784887B (en) | 2012-08-24 | 2012-08-24 | Lost foam casting die of transmission gear box body of heavy truck |
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| Publication Number | Publication Date |
|---|---|
| CN102784887A true CN102784887A (en) | 2012-11-21 |
| CN102784887B CN102784887B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210304343.8A Active CN102784887B (en) | 2012-08-24 | 2012-08-24 | Lost foam casting die of transmission gear box body of heavy truck |
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| CN102962402A (en) * | 2012-12-11 | 2013-03-13 | 洛阳刘氏模具有限公司 | Side core-pulling device for evanescent mode die of motor casing |
| CN103394652A (en) * | 2013-08-16 | 2013-11-20 | 洛阳钢丰机械制造有限公司 | Device and process for preparing integrated bottom box and core sand mould |
| CN104226906A (en) * | 2014-09-26 | 2014-12-24 | 纪汉伟 | Method for manufacturing cavity die |
| CN105478675A (en) * | 2016-01-28 | 2016-04-13 | 洛阳刘氏模具有限公司 | Motor-shell lost foam mold with insert rapid-replacement structure |
| CN109759544A (en) * | 2019-03-26 | 2019-05-17 | 洛阳刘氏模具有限公司 | The automatic core-pulling mechanism of single cylinder engine inner cavity loose piece |
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| CN104226906A (en) * | 2014-09-26 | 2014-12-24 | 纪汉伟 | Method for manufacturing cavity die |
| CN105478675A (en) * | 2016-01-28 | 2016-04-13 | 洛阳刘氏模具有限公司 | Motor-shell lost foam mold with insert rapid-replacement structure |
| CN109759544A (en) * | 2019-03-26 | 2019-05-17 | 洛阳刘氏模具有限公司 | The automatic core-pulling mechanism of single cylinder engine inner cavity loose piece |
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|---|---|
| CN102784887B (en) | 2014-05-07 |
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