CN206083837U - Processing apparatus behind large -scale aluminum alloy die casting - Google Patents

Abstract

The utility model discloses a processing apparatus behind large -scale aluminum alloy die casting, which comprises a frame, the setting is at the removal mould of frame lower part, the setting has the fixed mould of drift on frame upper portion, lower part removing the mould is equipped with the cavity, be equipped with the fixed plate in the cavity, can drive variable speed drive mechanism and synchronizing bar that the fixed plate goes up and down, be equipped with a plurality of guide bars on the fixed plate, the guide bar stretches out the upper end of removing the mould and is equipped with the die casting locating piece, the synchronizing bar stretches out the upper end of removing the mould upper surface and is equipped with the supporting shoe, be equipped with the constant head tank with remaining handle adaptation on the upper surface of supporting shoe, the stopper of evagination is equipped with at the middle part of synchronizing bar, and establish a supporting spring at the lower pot head of synchronizing bar, supporting spring's upper end is supported and is leaned on the stopper, the stopper pastes the lower surface that leans on the fixed plate. The utility model discloses in the back treatment process's that guarantees the die casting production efficiency, can thoroughly avoid the torn grain appearing in the incision department of die casting to it lands to show improves the surface quality of die casting after the aftertreatment.

Description

A kind of large aluminum alloy die casting after-treatment device

Technical field

The utility model is related to aluminum alloy die-casting technological technical field, exists for aluminum alloy die casting more particularly, to one kind After-treatment device after die cast.

Background technology

Aluminum alloy die-casting technological is widely used in the industries such as electronics, automobile, motor, household electrical appliances, communication, and its is plastic complex-shaped Component of machine, and substantial amounts of machining time can be saved, while reducing the loss of material, be conducive to improving production effect Rate, is adapted to produce in enormous quantities.Aluminium alloy compression casting needs first to process a set of die casting, and die casting has a upper mould and one Lower mould, it is generally the case that on upper mould arrange the cavity being adapted to product design and connect with cavity enter running channel, in lower mould Upper setting and the core and corresponding ejecting mechanism of product cavity adaptation, after upper and lower mould is installed on die casting machine simultaneously matched moulds, on Chamber portion between the core of the cavity of mould and lower mould and die cavity for shaped article is formed, the liquid that die casting machine will be melted Aluminium alloy is injected in die cavity by entering running channel, and after waiting the liquid aluminium alloy cooling and shaping in die cavity, upper and lower mould separates, and this is at present Ejecting mechanism action on mould, the product that will stay on the core of lower mould is ejected upwards, so that product is separated with core, i.e., Product can be removed.For aluminium alloy casting die, entering the form of running channel has many kinds, and most common of which one kind is to arrange Enter running channel in the lateral edges strip of product, so, the product after die cast can form a strip at lateral edges Remaining handle, people remove remaining handle typically by the mode of hand cut, and with the instrument of the class of sander one to product Cutting part carries out polishing finishing, so as to complete the post processing of die casting, so that the surface energy of product meets design requirement.So Afterwards, for some large aluminum alloy die castings, correspondingly, larger-size remaining handle can be formed after its formed product, this When, the efficiency of hand cut can be very low, and cut the surface of formation and occur and be significantly uneven, so as to increase polishing Time, or even still and then some cutting vestiges are remained after polishing, so as to affect the presentation quality of product.For this purpose, people are practical It is new some be used to process the after-treatment devices of remaining handle, normally, after-treatment device includes that one is placed and positioning product Stent, a mobile mould corresponding with stent and moving up and down, start post processing when, first after-treatment device is pacified It is attached on a punch press, then the product with remaining handle is placed and navigated in the stent of bottom, the mobile mould on top A drift is provided with the position of the remaining handle of corresponding product, drift has sword in correspondence remnants handle and product edge junction Mouthful；When punch press starts drives mobile mould to move down, remaining handle and product edge junction are answered in the cutting edge shearing of drift, so as to Efficiently and easily remaining handle can be cut；After punch press drives to be moved on mobile mould, operating personnel can remove product from lower mould. Such after-treatment device is conducive to the quality of improve production efficiency and post processing, but still there are the following problems：Firstly, since residual Cantilever beam structure is formed between remaining handle and product, and aluminum alloy material is softer, therefore, when drift is descending, drift cutting edge When touching remaining handle, due to the effect of inertia, cutting edge can rapidly cut into a depth in remaining handle, now cantilever-shaped remnants Handle still keeps cantilever position；With the fast downlink of drift, cantilever-shaped remaining handle is being pressed down against shearing work by drift Can rapidly be bent downwardly after firmly, so that remaining handle produces a tear phenomenon with the junction upside of product edge, That is, final residual handle is to separating under the double action of bending tear and the shearing of drift cutting edge with the edge of product , therefore, the incision that can be stayed in product edge forms rough torn grain, so as to affect the surface quality of product.

Utility model content

The purpose of this utility model is cut to solve the product existing for existing aluminium alloy casting die post-processing approach The problem of rough torn grain can be remained at mouthful, there is provided a kind of large aluminum alloy die casting after-treatment device, guarantee die casting While the production efficiency of the aftertreatment technology of part, can thoroughly avoid occurring torn grain at incision of product, so as to significantly carry Surface quality of the high die casting after post processing.

To achieve these goals, the utility model is employed the following technical solutions：

A kind of large aluminum alloy die casting after-treatment device, including frame, be arranged on the mobile mould of frame lower, be arranged on Upper rack has the stent of drift, and mobile positioning apparatus are provided with and by mobile positioning apparatus on mobile mould The discontinuous positioner of side, in the bottom of mobile mould cavity is provided with, and mobile positioning apparatus include being arranged on consolidating in cavity Fixed board and the shift drive mechanism that fixed plate lifts can be driven, fixed plate is provided with some guide posts, guiding straight up Bar stretches out the upper end of mobile mould upper surface and is provided with die casting locating piece, and discontinuous positioner includes the synchronization being located in cavity Bar, synchronizing bar straight up stretches out the upper end of mobile mould upper surface and is provided with support block, the upper surface of support block be provided with it is residual The locating slot of remaining handle adaptation, the middle part being located in cavity in synchronizing bar is provided with the limited block of evagination, and in the lower end of synchronizing bar A support spring is arranged, against limited block, the limited block flexibly reclines the lower surface of fixed plate for the upper end of support spring.

During post processing, first die casting is placed on the die casting locating piece of mobile positioning apparatus and supports positioning, it is remaining Handle is then navigated in the locating slot of the support block of discontinuous positioner；Then shift drive mechanism drives fixed plate to rise, Support spring then promotes synchronizing bar synchronously to rise, so as to drive die casting and remaining handle uplink synchronization to clipped position, now residual Remaining handle contacts with drift.Then, running fix device then drives die casting continuation up, and the support of discontinuous positioner Block is then stopped up by the prevention of drift, remaining handle is positioned between drift and support block by reliable retention, now presses , into relative displacement, drift enables remaining handle to shear for foundry goods and remaining handle type.Then running fix device band dynamic pressure foundry goods is descending, Fixed plate contacts limited block, so as to promote synchronizing bar DL synchronization to lower limit position；Die casting and remnants are now removed respectively Handle, you can complete the post processing of die casting.

With unlike prior art, in the remaining handle of shearing, remaining handle downside is supported by discontinuous positioner And positioning, that is to say, that remaining handle is in no longer cantilever beam state in shearing, but is clamped, is positioned at drift and discontinuous Between the support block of positioner, so that remaining handle is not in bending phenomenon in shear history, it is effectively prevented from because residual The bending of remaining handle but there is torn grain in the otch of die casting.Particularly, the utility model passes through the movable type that can be moved up Positioner and discontinuous positioner make die casting and remaining handle rise together, so as to form relative displacement with drift, And when drift contact with remaining handle, discontinuous positioner no longer promotes remaining handle rising, and mobile positioning apparatus then after It is continuous to promote die casting to rise so that the cutting edge of drift to remaining handle type into good shearing, and die casting in shearing not Slow down, so as to avoid during shearing because effect of inertia causes the reduction of relative velocity between drift and die casting, advantageously ensure that Die casting otch it is smooth.

Preferably, the shift drive mechanism includes being arranged on the driving plate below fixed plate, the lower surface of driving plate Fit with the bottom surface of the cavity, the upper surface of driving plate is fitted with the lower surface of fixed plate, fixed plate is fitted with driving plate Face is inclined-plane, and the side side for driving plate thickness thicker is provided with rotatable drive gear disk, is hinged with driving plate horizontal Connecting rod, the other end of connecting rod is hinged in drive gear disk the edge away from driving plate side, the drive gear disk with one by The change-speed gearing that motor drives is meshed.

The connecting rod that two ends are hinged forms toggle with drive gear disk, when motor drives change-speed gearing to rotate When, you can drive drive gear disk to rotate, and then driving plate transverse shifting is promoted by connecting rod, now the inclined upper table of driving plate Face can drive in fixed plate and move.Because connecting rod is horizontally disposed in initial position, that is to say, that connecting rod now is in down Dead-centre position, therefore, the translational speed of driving plate is slower when drive gear disk just starts to rotate, correspondingly, the rising of fixed plate Speed is slower, so as to realize the slow start of die casting；With the rotation of drive gear disk, the rate of climb of die casting progressively increases Plus；When drive gear disk turns over about 90 degree or so, the rate of climb of die casting reaches maximum, now drift just with it is residual Remaining handle contact, so as to THE ADIABATIC SHEAR IN can be formed, to improve the smoothness of otch；When drive gear disk is rotated further, die casting The rate of climb be gradually decrease to stop, so as to can effectively reduce die casting because rapidly stopping the shock and vibration for causing.

Preferably, between driving plate and fixed plate and being respectively equipped with straight line between driving plate and the bottom surface of cavity and leading Rail, the thicker side side of the fixed plate thickness is provided with rotatable roller, and the roller reclines the side of the fixed plate.

Due to being respectively equipped with line slideway between driving plate and fixed plate and between driving plate and the bottom surface of cavity, thus Frictional resistance during driving plate transverse shifting is significantly decreased, while realizing the mobile guide of driving plate.And roller then can be to solid Fixed board forms a lateral support, to eliminate because driving plate makes what fixed plate was formed to the lateral force produced by fixed plate Moment of torsion, it is to avoid fixed plate catching phenomenon occurs when rising.

Preferably, the stent is provided with the oil cylinder that drift can be driven to lift, the frame is provided with can drive shifting The mobile mould drive mechanism of dynamic model lifting.

So, when moving on die casting, drift also can be moved down simultaneously, relative between drift and die casting so as to improve Translational speed, so as to be conducive to improving the quality of shearing, while avoiding the inertia institute that die casting is formed because translational speed is too fast The harmful effect for causing.Additionally, when mobile mould is in position of readiness, can have larger sky between stent and mobile mould Gap, die casting so as to convenient placed and navigated on mobile positioning apparatus.When shearing is started, mobile mould drive mechanism makes Mobile mould rises, and to reduce the distance between mobile mould and stent, mobile positioning apparatus and discontinuous positioning is then made again Device action, promotes die casting and remaining handle to rise, so as to reduce the upper of mobile positioning apparatus and discontinuous positioner Lower lifting travel, to improve the intensity and rigidity of mobile positioning apparatus and discontinuous positioner.

Therefore, the utility model has the advantages that：In the production efficiency of the aftertreatment technology that guarantees die casting Meanwhile, can thoroughly avoid occurring torn grain at incision of product, so as to significantly increase surface matter of the die casting after post processing Amount.

Description of the drawings

Fig. 1 is a kind of structural representation of the present utility model.

In figure：1st, frame 2, mobile mould 21, cavity 22, guide through hole 23, synchronous rod through-hole 3, stent 31st, drift 4, fixed plate 41, guide post 42, die casting locating piece 5, synchronizing bar 51, support block 511, positioning Groove 52, limited block 53, support spring 6, driving plate 61, line slideway 62, roller 7, drive gear disk 71, Change-speed gearing 8, connecting rod 9, die casting 91, remaining handle.

Specific embodiment

Below in conjunction with the accompanying drawings the utility model is further described with specific embodiment.

As shown in figure 1, a kind of large aluminum alloy die casting after-treatment device, to remove die casting molding after remain it is residual Yu Bing, specifically includes frame 1, and the bottom of frame arranges a mobile mould 2 moving up and down, and the top of frame arranges one admittedly Cover half 3.The drift 31 of the remaining handle for being provided for being punched die casting in stent, mobile positioning apparatus are set on mobile mould with And positioned at the discontinuous positioner of mobile positioning apparatus side.Additionally, arranging a cavity 21 in the bottom of mobile mould, move Dynamic formula positioner includes the fixed plate 4 being horizontally disposed in cavity and the shift drive mechanism being associated with fixed plate, Shift drive mechanism can drive fixed plate speed change to lift.Some guide posts 41 straight up are set in fixed plate, on mobile mould Corresponding guide through hole 22 is set, and guide post is slidably located in corresponding guide through hole, and movement is stretched out in the upper end of guide post Mould upper surface, and the die casting locating piece 42 being adapted to the surface configuration of die casting is set in the upper end of guide post.Can be with It is understood by, for the die casting with cavity, cavity can preferably places upward, now the die casting positioning of part The lateral wall shape adaptation of block and die casting, to play a part of to support die casting, the die casting locating piece of part and die casting On forming hole or fabrication hole be adapted, to play a part of to position die casting, so as to will not when drift shears remaining handle Die casting is set to be clamped on mobile positioning apparatus.In addition, discontinuous positioner includes the synchronization being positioned vertically within cavity Bar 5, arranges corresponding synchronization rod through-hole 23 on mobile mould, synchronizing bar is slidably located in synchronous rod through-hole, synchronizing bar it is upper Mobile mould upper surface is stretched out at end, and arranges support block 51 in the upper end of synchronizing bar, arrange on the upper surface of support block with it is residual The locating slot 511 of remaining handle adaptation, so that when die casting is placed and is navigated on mobile positioning apparatus, synchronizing bar can be positioned at In the locating slot of support block.Further, the middle part being located in cavity in synchronizing bar arranges the limited block 52 of an evagination, and same The lower end of step bar is arranged a support spring 53, and the upper end of support spring is against limited block, so that limited block flexibly reclines The lower surface of fixed plate.

Further, shift drive mechanism of the present utility model includes being arranged on the driving plate 6 below fixed plate, driving plate Lower surface fit with the bottom surface of cavity, the upper surface of driving plate is fitted with the lower surface of fixed plate, so that fixed plate is upper Lower section obtains upwards the secure support of driving plate.In addition, the binding face of fixed plate and driving plate is inclined-plane so that fixed plate with And driving plate is in split shape.The right side side for driving plate thickness thicker arranges rotatable drive gear disk 7, is hinged in driving plate A piece horizontally disposed connecting rod 8, left end and the driving plate of connecting rod are hinged, the right-hand member of connecting rod be hinged in drive gear disk away from At the right side edge of driving plate, drive gear disk and is by motor（Not shown in figure）The change-speed gearing 71 of drive is mutually nibbled Close, so that motor can drive change-speed gearing to rotate, and then drive drive gear disk to rotate.

The step of the utility model to large aluminum alloy die casting when post-processing is as follows：

A. the mobile positioning apparatus that are arranged on mobile mould are placed and navigated to the die casting 9 with remaining handle 91 On, die casting locating piece and the surface of die casting of the guide post upper end of mobile positioning apparatus fit, so that die casting Reliably supported and positioned；And the remaining handle for being connected to the strip of die casting left side edge is then navigated to and is arranged on movement On mould and on the discontinuous positioner on the left of mobile positioning apparatus, and remaining handle is limited in discontinuous positioning dress In the locating slot of the support block of the synchronizing bar upper end put, mobile mould now is in position of readiness.

B. the motor in shift drive mechanism starts, and so as to be driven by change-speed gearing, drive gear disk is positive to be turned It is dynamic, driving plate side shifting to the left is driven by the connecting rod being now hinged with drive gear disk, and then by oblique on the upside of driving plate Face promotes fixed plate to move up, and fixed plate can drive on guide post and move, and then promotes the die casting for being positioned at guide post upper end Move on die casting on part locating piece, at the same time, the elastic force of support spring promote synchronizing bar it is synchronous with fixed plate on move, synchronization Limited block on bar then reclines all the time the lower surface of fixed plate, the remnants so that it is guaranteed that support block of synchronizing bar upper end reclines all the time Handle, makes remaining handle synchronously rise and reliably supported with die casting, so as to realize that mobile positioning apparatus are determined with discontinuous The synchronization action of position device.

Connecting rod of the present utility model, drive gear disk and driving plate form toggle, because connecting rod is in initial bit It is horizontally disposed to put, that is to say, that connecting rod now is in lower dead point position, therefore, when drive gear disk just starts to rotate The transverse shifting speed of driving plate is slower, and correspondingly, the rate of climb of fixed plate is slower, so as to realize the slow start of die casting Rise；With the rotation of drive gear disk, the rate of climb of die casting is stepped up, so as to realize that die casting is same with remaining handle Step accelerates.When drive gear disk turns over about 90 degree or so, the transverse shifting speed of driving plate reaches maximum, accordingly Ground, the rate of climb of die casting reaches maximum, and die casting and remaining handle uplink synchronization now move mould top to clipped position Stent on drift just contact with remaining handle.

In addition, we can be respectively provided with left and right between driving plate and fixed plate and between the bottom surface of driving plate and cavity The line slideway 61 of arrangement, so as to reduce frictional resistance during driving plate transverse shifting, while realizing the mobile guide of driving plate. And rotatable roller 62 is set beside the thicker left side of fixed plate thickness, and roller reclines the left surface of fixed plate.So as to A lateral support can be formed to fixed plate, to eliminate because driving plate makes fixed plate to the lateral force produced by fixed plate The moment of torsion of formation, it is to avoid fixed plate catching phenomenon occurs when rising.

C. the motor in running fix device continues to drive driving plate transverse shifting to the left, so as to drive die casting Continue up, and drift then prevents remaining handle continuation up, and stop synchronizing bar by the support block in discontinuous positioner Only up, the limited block on synchronizing bar is separated with the lower surface of fixed plate, and remaining handle is clamped, is positioned at drift and discontinuous Between the support block of positioner, so that forming relative displacement between die casting and drift, now the cutting edge on drift is right The remaining handle being connected with die casting is sheared.

It should be noted that in order to improve shear rate during drift punching remnants handles, to improve shearing quality, Wo Menke One oil cylinder is set in stent（Not shown in figure）, the piston rod of oil cylinder is connected with drift, so, in portable positioning Device and discontinuous positioner drive die casting and remnants handle uplink synchronizations to during clipped position, and we can make fixation Hydraulic oil cylinder driving drift on mould is moved down, so that drift and die casting and remaining handle type are into relative motion.Additionally, drift Upper to arrange the escape groove 311 corresponding with the locating slot in support block, the right side in escape groove near die casting forms shearing The cutting edge of remaining handle.So, when running fix device band dynamic pressure foundry goods is up and the cutting edge of drift versus downstream to drift with it is residual Remaining handle when clipped position contacts, on drift in the both sides of escape groove and support block locating slot two side contacts, drift pushes away Squeeze remnants handles and support block moved down, and by support block promote synchronizing bar to overcome the elastic force of support spring and to moving down It is dynamic, so that form relative displacement between die casting and drift, the now cutting edge on drift i.e. couple remnants being connected with die casting Handle is quickly sheared.

D. motor drives drive gear disk to be rotated further by change-speed gearing, until connecting rod is in upper dead center position, Connecting rod now is in horizontality, and connecting rod is located at the left side of drive gear disk with the pin joint of drive gear disk, now The die casting being positioned on running fix device goes upward to upper extreme position, and the cutting edge of drift completes the shearing to remaining handle, from And make remaining handle and die casting be separated, remaining handle is clamped, is positioned between the support block of drift and discontinuous positioner, Correspondingly, drift comes downwards to the lower limit position of drift；

E. motor drives drive gear disk to be rotated further by change-speed gearing, and connecting rod crosses upper dead center position, so as to Drive driving plate transverse shifting to the right, running fix device and die casting then can be in the presence of own wts to moving down Dynamic, certainly we also can on the guide bar be arranged stage clip, and stage clip one end compresses fixed plate upper surface, and the other end compresses the upper of cavity Surface.So when driving plate is promoted moves in fixed plate, stage clip is compressed, and when driving plate transverse shifting to the right, stage clip is Fixed plate can be promoted descending, and make die casting descending by the guide post in fixed plate.At the same time, move on hydraulic oil cylinder driving drift And separate with remaining handle, when running fix device band dynamic pressure foundry goods comes downwards to clipped position, drift is moved upward to drift Upper extreme position and reset.Now the lower surface of fixed plate contacts the limited block on guide post, so that discontinuous positioner Action, discontinuous positioner DL synchronization i.e. together with running fix device；

F. when running fix device and discontinuous positioner DL synchronization are to lower limit position, die casting is positioned at On the die casting locating piece of running fix device, remaining handle detached with die casting be positioned on discontinuous positioner and with punching Head is separated；

G. die casting is removed from running fix device, remaining handle is removed from discontinuous positioner, you can complete pressure The post processing of foundry goods.

Used as a kind of prioritization scheme, we can arrange the movement that the mobile mould of driving of the class of oil cylinder one is moved up and down in frame Mould drive mechanism, so that moving moulds has nethermost position of readiness, and the operating position after rising, we can arrange shifting Dynamic model is between position of readiness and stent has larger space, so as to easily place and navigate to shifting by die casting On dynamic formula positioner.So, we step can be further added by between step a and step b as follows：

Mobile mould drive mechanism drives mobile mould to rise together with mobile positioning apparatus and discontinuous positioner, from And make to move mould operating position is risen to by position of readiness, the remaining handle and mobile mould being now positioned on discontinuous positioner The distance between cutting edge of drift in the stent of top is 50-70mm, and its preferred value is 60mm, so as to reduce movement The oscilaltion stroke of formula positioner and discontinuous positioner, to improve mobile positioning apparatus and discontinuous positioner Intensity and rigidity；

Correspondingly, step is further added by between step f and step g as follows：

Mobile mould drive mechanism drives mobile mould to drop to together with mobile positioning apparatus and discontinuous positioner Position of readiness.

Claims (4)

1. a kind of large aluminum alloy die casting after-treatment device, including frame, the mobile mould for being arranged on frame lower, machine is arranged on Frame top has the stent of drift, it is characterized in that, mobile positioning apparatus is provided with mobile mould and positioned at portable fixed The discontinuous positioner of position device side, in the bottom of mobile mould cavity is provided with, and mobile positioning apparatus are recessed including being arranged on Fixed plate in chamber and the shift drive mechanism that fixed plate lifts, fixed plate can be driven to be provided with some guide posts, vertically to On guide post stretch out the upper end of mobile mould upper surface and be provided with die casting locating piece, discontinuous positioner includes being located in cavity Synchronizing bar, synchronizing bar straight up stretches out the upper end of mobile mould upper surface and is provided with support block, set on the upper surface of support block There is the locating slot being adapted to remaining handle, the middle part being located in cavity in synchronizing bar is provided with the limited block of evagination, and in synchronizing bar Lower end be arranged a support spring, against limited block, the limited block flexibly reclines fixed plate for the upper end of support spring Lower surface.

2. a kind of large aluminum alloy die casting after-treatment device according to claim 1, is characterized in that, the variable speed drives Mechanism includes being arranged on the driving plate below fixed plate, and the lower surface of driving plate is fitted with the bottom surface of the cavity, driving plate Upper surface is fitted with the lower surface of fixed plate, and the binding face of fixed plate and driving plate is inclined-plane, the side for driving plate thickness thicker Side is provided with rotatable drive gear disk, and horizontal connecting rod is hinged with driving plate, and the other end of connecting rod is hinged on sliding tooth Away from the edge of driving plate side on wheel disc, the change-speed gearing that the drive gear disk is driven with by motor is meshed.

3. a kind of large aluminum alloy die casting after-treatment device according to claim 2, is characterized in that, driving plate and fixation Line slideway, the thicker side side of the fixed plate thickness are respectively equipped between plate and between driving plate and the bottom surface of cavity It is provided with rotatable roller, the roller reclines the side of the fixed plate.

4. a kind of large aluminum alloy die casting after-treatment device according to claim 1 or 2 or 3, is characterized in that, described solid Cover half is provided with the oil cylinder that drift can be driven to lift, and the frame is provided with the mobile mould driving machine that can drive mobile mould lifting Structure.