CN205702316U

CN205702316U - A kind of automobile front axle casting die

Info

Publication number: CN205702316U
Application number: CN201620599254.4U
Authority: CN
Inventors: 陈学福; 曹年富
Original assignee: Nanping City Jianyang District Auto Forging Parts Factory
Current assignee: Nanping City Jianyang District Auto Forging Parts Factory
Priority date: 2016-06-20
Filing date: 2016-06-20
Publication date: 2016-11-23
Anticipated expiration: 2026-06-20

Abstract

This utility model relates to automobile front axle manufacture technology field.A kind of automobile front axle casting die, including die ontology, described die ontology is provided with casting gate, described die ontology includes upper die and lower die, front axle die cavity it is provided with in described upper die and lower die, front axle model support sheet it is provided with in described front axle die cavity, described casting gate is by being arranged on the first half of upper mold and being arranged on the lower half of lower mold and surround and form, the inner of described casting gate is provided with protuberance in the cast gate protruding described front axle die cavity, described front axle model support sheet side of protuberance in described cast gate start to extend to cast gate along the boundary line of upper die and lower die in the opposite side of protuberance.This utility model provides a kind of automobile front axle casting die for casting automobile front axle, and the method by forging and stamping that solves makes the problem that the noise existing for automobile front axle is big.

Description

A kind of automobile front axle casting die

Technical field

The present invention relates to automobile front axle manufacture technology field, particularly relate to a kind of automobile front axle casting die.

Background technology

Automobile front axle is parts on automobile, and existing automobile front axle is to carry out making by the method for forging and stamping, The method of forging and stamping makes and there is the deficiency that noise is big.

Summary of the invention

The invention provides a kind of automobile front axle casting die for casting automobile front axle, solve the method by forging and stamping Make the problem that the noise existing for automobile front axle is big.

More than technical problem is that and solved by following technical proposal: a kind of automobile front axle casting die, it is characterised in that bag Including die ontology, described die ontology is provided with casting gate, and described die ontology includes upper die and lower die, in described upper die and lower die Being provided with front axle die cavity, be provided with front axle model support sheet in described front axle die cavity, described casting gate is by the first half being arranged on upper mold Surrounding with the lower half being arranged on lower mold and form, the inner of described casting gate is provided with the cast gate convex protruding described front axle die cavity Portion, described front axle model support sheet side of protuberance in described cast gate starts to extend to cast gate along the boundary line of upper die and lower die The opposite side of interior protuberance.

As preferably, described die ontology is provided with at least two shockproof suspension frame, and described shockproof suspension frame includes a pair edge The impact absorbing connector that above-below direction is arranged oppositely, described impact absorbing connector includes the damping oil cylinder being vertically arranged and is set in damping oil cylinder On damping spring, described damping oil cylinder includes damping oil cylinder cylinder body and be arranged at the first piston of damping oil cylinder cylinder body, described First piston is linked together with described die ontology by piston rod, and one end of described damping spring connects with described piston rod Together, the other end link together with described damping oil cylinder cylinder body, be additionally provided with in described damping oil cylinder cylinder body the second piston and Separating plate, forms the first oil pocket between described separating plate and first piston, form second between described separating plate and the second piston Oil pocket, is provided with driving first piston between described first piston and the second piston and the second piston produces to the electromagnetic force of movement Adhesive mechanism, described separating plate is communicated with the first oil pocket and the intercommunicating pore of the second oil pocket, and described intercommunicating pore is hinged with towards The door-plate of the two unidirectional unlatchings of oil pocket and being provided with makes door-plate close the door-plate resetting-mechanism closed, and described door-plate is provided with and some runs through door-plate Main damp channel, be provided with velocity sensor in described intercommunicating pore；When described velocity sensor detects that oil is from the first oil pocket stream When the second oil pocket, described electromagnetic force adhesive mechanism stop driving first piston and the second piston to movement, when described speed Sensor detect oil when the second oil pocket flows to the first oil pocket, described electromagnetic force adhesive mechanism drive first piston and second to live Plug is to movement.During use, damping oil cylinder cylinder body is joined together to realize the suspension type of mould with the position of installation mold Install.Oil is filled in the first oil pocket and the second oil pocket.When in mould production process produce vibration and carry out the row run up Journey and cause impact absorbing connector above damping spring shrink time, this impact absorbing connector damping spring drive piston rod Driving first piston to move and the first oil pocket is reduced, the first oil pocket reduces and drives oil in damping oil cylinder through intercommunicating pore from the One oil pocket flows to the second oil pocket, and now door-plate is open so that when oil flows through intercommunicating pore, door-plate does not produces damping action and electricity to oil Magnetic attraction mechanism loses the fixation to first piston and the second piston and makes the second piston can be relative to first piston Move freely, be obstructed namely spring can be received in time without causing damping spring to shrink it is achieved thereby that damping action is less Contracting and energy-absorbing and reduce the vibratory output of upward stroke unofficial biography, upward stroke is positioned at the spring contraction row of impact absorbing connector of lower section Journey terminate after under the effect of door-plate resetting-mechanism, door-plate stop in intercommunicating pore, spring elongation reset and release energy, extend Result cause damping oil cylinder cylinder body and first piston to produce isolated movement makes the second oil pocket reduce and the first oil pocket becomes big, makes Oil in damping oil cylinder through intercommunicating pore from the second oil pocket flow to the first oil pocket, now electromagnetic force adhesive mechanism by first piston and Second piston fixes the relative invariant position of holding and door-plate can not be open, allow oil at whole spring contraction stroke In from main damp channel by and produce frictional damping energy dissipating thus carry out energy-absorbing.Otherwise, shake when mould production process produces During the stroke moved and run downwards, impact absorbing connector the most above is firm with the course of action of the amortisseur being positioned at lower section Good contrary with above-mentioned course of action.So that the vibrational energy of the upward stroke of vibration and descending stroke can be by effectively Absorb so that the vibratory output of unofficial biography is little.

As preferably, being equipped with damper rod in described main damp channel, described damper rod mating spherical surfaces is connected to described master In damp channel, described damper rod is provided with a damp channel.Vibrational energy is turned when flowing through main damp channel, damp channel by oil Can produce rocking of damper rod while becoming heat energy and consuming, damper rod rocks also can play and vibrational energy is changed into heat Can and the effect that consumes.If vibrate less and and only the rocking of oil, when oil rocks damper rod produce rock also can energy-absorbing, Damper rod is set and can improve the Absorption to low amplitude vibration.

As preferably, described door-plate is all stretched out at the two ends of described damper rod, and two end faces of described damper rod are all sphere. Enable to also be able to when oil receives the axial vibration of non-damping oil cylinder cylinder body drive damper rod to run and energy-absorbing.Energy-absorbing effect Good.

As preferably, described damper rod is cylindrical, two end faces of described damper rod is designed with some along damper rod Circumferentially distributed increasing resistance groove.The damper rod contact area with oil can be improved, to improve energy-absorbing effect and induction sensitivity.

As preferably, described door-plate resetting-mechanism is the torsion spring being arranged in the rotating shaft of door-plate.

As preferably, described electromagnetic force adhesive mechanism includes the electric magnet being arranged at first piston and is arranged at the second piston Same electric magnet coordinate ferrimagnet sheet.

As preferably, the internal diameter of described first oil pocket is more than the internal diameter of the second oil cylinder.During spring extends, first The displacement of piston and the second piston is identical, the volume that the volume that now the first oil pocket increases reduces more than the second oil pocket, so that Obtaining the first oil pocket and produce negative pressure relative to the second oil pocket, the result producing negative pressure is that oil the most reliably flows to the first oil through door-plate Chamber, thus the most reliably reduce spring extended travel and jolt.

As preferably, described damping oil cylinder cylinder body and piston rod are designed with threaded connection hole, and described threaded connection hole includes Main paragraph and the only section of pendulum, the outer end of described main paragraph is provided with big footpath section, and the perisporium of described big footpath section is provided with pendulum groove, described only pendulum Section is provided with yaw, and described only pendulum section is located in the section of described big footpath rotationally, and described yaw is plugged in described pendulum groove, described Be provided with swing gap between yaw and pendulum groove, the screw thread of the screw thread of described main paragraph and described only pendulum section may be adjusted to be positioned at On one helix.During use, realize, by being threaded in threaded connection hole by thread head, the installation that impact absorbing connector is same. The threaded connection hole of the technical program, when producing vibration, the meeting between screw thread and the screw thread only putting section of main paragraph produces mistake Open reasonably change, so that the screw thread of the two is not on same helix when staggering, thus play and hinder the effect loosened.

As preferably, when described only pendulum section turns to be connected to together with a side of sidewall portion of described pendulum groove with described yaw, The screw thread of the screw thread of described main paragraph and only pendulum section is positioned on same helix, described swing gap is positioned at fork and puts the another of groove Between one side of sidewall portion.When tightening thread head all threaded connection holes, the screw thread of the screw thread of main paragraph and only pendulum section can easily certainly Dynamic alignment, convenience when tightening is good.

As preferably, described threaded connection hole is additionally provided with helix alignment's maintaining body, described helix alignment's maintaining body bag Include and be arranged on the described top only put in section, drive top to stretch into described swing gap and be connected to another sidewall of described pendulum groove Top drive mechanism in portion.

As preferably, described top drive mechanism include with come directly towards be connected to together the first driving post, make the first driving Post is maintained at and top is connected to put the driving post fastening screw of the position on another side of sidewall portion of groove, driving post location is inserted Pin be inserted in the first driving post insert spring, drive drive post fastening screw extract the first driving post second driving post and The driving post driving the first driving post to depart from top departs from spring.

A kind of automobile front axle casting method,

The first step, automobile front axle model is supported in front axle die cavity by protuberance in front axle model support sheet and cast gate, Automobile front axle model, front axle model support sheet and protuberance in cast gate front axle die cavity is divided into only by casting gate connect upper and lower Two chambeies；

Second step, automobile front axle model is heated to 250 DEG C after by make core sand be ejected into front spindle-type through casting gate Intracavity and formed and cover release layer on front axle cavity wall；

3rd step, die sinking and take out automobile front axle model；

After 4th step, matched moulds, the liquid phase steel making automobile front axle is solidified in casting gate is cast to front axle die cavity and make Go out automobile front axle.

The present invention has an advantage that to water and casts out automobile front axle, and the noise in production process is little, laborsaving during the demoulding.

Accompanying drawing explanation

Fig. 1 is the use state front elevational schematic of automobile front axle casting die embodiment one.

Fig. 2 is the schematic top plan view of automobile front axle casting die embodiment one.

Fig. 3 is the front elevational schematic of automobile front axle casting die embodiment two.

Fig. 4 is the enlarged diagram of impact absorbing connector.

Fig. 5 is the close-up schematic view at the A of Fig. 4.

Fig. 6 is the close-up schematic view at the B of Fig. 5.

Fig. 7 is the cross-sectional schematic of threaded connection hole.

Fig. 8 be threaded connection hole along Fig. 7 A to enlarged diagram.

Fig. 9 is the B B cross-sectional schematic of Fig. 8.

In figure: protuberance in die ontology 1, upper mold 11, lower mold 12, casting gate 13, the first half 131, lower half 132, cast gate 133, front axle die cavity 14, epicoele 141, cavity of resorption 142, front axle model support sheet 15, electric heating piece 151, automobile front axle model 2, screw thread Connecting hole 8, main paragraph 811, only pendulum section 812, big footpath section 813, pendulum groove 814, yaw 815, helix alignment's maintaining body 82, top 821, top drive mechanism 822, first drives post 8221, second to drive post 8222, insert spring 8223, driving post fastening screw 8224, post is driven to depart from spring 825, swing gap 83, shockproof suspension frame 9, damping oil cylinder 91, damping oil cylinder cylinder body 911, first Piston 912, piston rod the 913, second piston the 914, first oil pocket the 915, second oil pocket 916, damping spring 92, separating plate 94, company Through hole 941, door-plate 942, door-hinge 9421, main damp channel 9422, damper rod 9423, damp channel 9424, increase resistance groove 9425, Block 943, electromagnetic force adhesive mechanism 95, electric magnet 951, ferrimagnet sheet 952, velocity sensor 96, impact absorbing connector 98, Engaging lug 99, the angular aperture B of groove.

Detailed description of the invention

The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.

Embodiment one, sees Fig. 1, and a kind of automobile front axle casting die, including the die ontology 1 of steel.Die ontology 1 is provided with Casting gate 13.Die ontology 1 includes upper mold 11 and lower mold 12.It is provided with front axle die cavity 14 in upper mold 11 and lower mold 12.Front axle die cavity Front axle model support sheet 15 it is provided with in 14.Front axle model support sheet 15 links together with upper mold 11.Casting gate 13 is by being arranged on The first half 131 of upper mold 11 surrounds with the lower half 132 being arranged on lower mold 12 and forms.The inner of casting gate 13 is provided with protrusion front axle Protuberance 133 in the cast gate of die cavity 14.

Seeing Fig. 2, front axle model support sheet 15 side of protuberance 133 in cast gate starts the boundary line along upper die and lower die Extend to the opposite side of protuberance in cast gate.The inner peripheral of front axle model support sheet 15 is provided with electric heating piece 151.

The method being carried out casting automobile front axle by this utility model is:

See Fig. 1, a kind of automobile front axle casting method:

The first step, automobile front axle model 2 is supported on front spindle-type by protuberance 133 in front axle model support sheet 15 and cast gate In chamber 14.In automobile front axle model 2, front axle model support sheet 15 and cast gate, front axle die cavity 14 is divided into and only passes through by protuberance 133 The epicoele 141 of casting gate 13 connection and cavity of resorption 142.

See Fig. 3, second step, by being energized to electric heating piece 151, automobile front axle model 2 is heated to 250 DEG C, then will Make sand (sand the is sand during existing making cast core) shape in casting gate 13 is ejected into front axle die cavity 14 of core Become to cover the release layer 16 on front axle cavity wall.

3rd step, die sinking and take out automobile front axle model.

4th step, matched moulds will make the liquid phase steel of automobile front axle before casting gate 13 is cast to after i.e. closing up upper die and lower die Solidify in spindle-type chamber 14 and produce automobile front axle.

Embodiment two, with the difference of embodiment one be:

See Fig. 2, the lower mold of die ontology 1 be respectively arranged at the two ends with an engaging lug 99.Engaging lug 99 connects has damping to hang Hanger 9.Shockproof suspension frame 9 includes the impact absorbing connector 98 being arranged oppositely along the vertical direction a pair.Impact absorbing connector 98 includes erecting The damping oil cylinder 91 put and the damping spring 92 being set on damping oil cylinder.Damping oil cylinder 91 includes damping oil cylinder cylinder body 911.Resistance First piston the 912, second piston 914 and separating plate 94 it is provided with in Buddhist nun's cylinder block 911.First piston 912 connects piston rod 913.One end of damping spring 92 is fixed together with piston rod 913, the other end is fixed together with damping oil cylinder cylinder body 911. Damping oil cylinder cylinder body 911 and piston rod 913 are designed with threaded connection hole 8.Impact absorbing connector 98 is placed through piston by bolt Link together with engaging lug 99 after threaded connection hole on bar 913.Separating plate 94 and damping oil cylinder cylinder body 911 are fixed in one Rise.The first oil pocket 915 is formed between damping oil cylinder cylinder body 911 and first piston 912.Between separating plate 94 and the second piston 914 Form the second oil pocket 916.The internal diameter of the first oil pocket 915 is more than the internal diameter of the second oil pocket 916.First oil pocket 915 and the second oil pocket 916 are distributed along the vertical direction.Separating plate 94 is communicated with hole 941.Intercommunicating pore 941 connects the first oil pocket 915 and the second oil pocket 916。

See Fig. 4, between first piston 912 and the second piston 914, be provided with electromagnetic force adhesive mechanism 95.Electromagnetic force adhesive machine Structure 95 includes electric magnet 951 and ferrimagnet sheet 952.Electric magnet 951 is arranged on first piston 912.Ferrimagnet sheet 952 are arranged on the second piston 914.Intercommunicating pore 941 is provided with door-plate 942.

Seeing Fig. 5, door-plate 942 is hinged in intercommunicating pore 941 by door-hinge 9421.Separating plate 94 is provided with door-plate reset machine Structure.Door-plate resetting-mechanism is the torsion spring being arranged in the rotating shaft of door-plate.Door-plate 942 is only capable of towards the second unidirectional unlatching of oil pocket 916. Velocity sensor 96 it is provided with in intercommunicating pore 941.Door-plate 942 is provided with some main damp channels 9422 running through door-plate.Main damping is led to Damper rod 9423 it is equipped with in road 9422.Damper rod 9423 mating spherical surfaces is connected in main damp channel 9422.Damper rod 9423 It is provided with a damp channel 9424.Door-plate 942 is all stretched out at the two ends of damper rod 9423.Two end faces of damper rod 9423 are all ball Face.Damper rod 9423 is cylindrical.

See Fig. 6, two end faces of damper rod 9423 are designed with some increasing resistance grooves 9425 circumferentially distributed along damper rod.

See Fig. 3, Fig. 4, Fig. 5 and Fig. 6, during use, in the first oil pocket 915 and the second oil pocket 916, fill the liquid such as oil.Subtract Shake adapter 98 links together with engaging lug 99 after being placed through the threaded connection hole on piston rod 913 by bolt.Pass through It is bolted in the threaded connection hole 8 being positioned on damping oil cylinder cylinder body 911 link together with the parts of the fixing present invention And the suspension type realizing the present invention is installed.When the present invention produce vibration and produce move upward stroke time: be positioned at connection and 16 The damping spring 92 of the impact absorbing connector 98 of top shrinks, and damping spring 92 drives piston rod 913 to drive first piston 912 to move And the first oil pocket 915 is reduced, the first oil pocket 915 reduces driving oil and flows to the second oil through intercommunicating pore 941 from the first oil pocket 915 Chamber 916, this flow direction of oil are detected by velocity sensor 96, and velocity sensor 96 controls electric magnet 951 by control system and loses So that electromagnetic force adhesive mechanism 95 loses the fixation to first piston 912 and the second piston 914, (i.e. first lives electricity Plug 912 and the second piston 914 can produce relative movement), when oil flows through intercommunicating pore 941, door-plate 942 is pushed open so that oil flows through Intercommunicating pore 941 leads directly to and enters the second oil pocket 916(i.e. door-plate 942 and oil is not produced damping action), it is achieved thereby that damping is made Being obstructed namely spring can shrink and energy-absorbing in time without causing damping spring to shrink with less, spring contraction stroke terminates After automatically rotate and close under the effect of door-plate resetting-mechanism, door-plate 942 stops again in intercommunicating pore 941；

Meanwhile, damping spring 92 elongation being positioned at the impact absorbing connector 98 below engaging lug 99 resets and discharges energy Amount, the result of elongation causes damping oil cylinder cylinder body 911 and first piston 912 to produce isolated movement the second oil pocket 916 is reduced And the first oil pocket 915 becomes big so that oil flows to the first oil pocket 915, this flow direction quilt of oil through intercommunicating pore 941 from the second oil pocket 916 Velocity sensor 96 detects, velocity sensor 96 by control system control electric magnet 951 electric, electric magnet 951 produces magnetic Power so that first piston 912 and the second piston 914 are fixed and are pressed on oil by electromagnetic force adhesive mechanism 95, oil the party When runner, door-plate 942 can not be open, allow oil to door-plate 942 in whole spring contraction stroke and produce frictional damping Phenomenon and energy-absorbing.

When the present invention produce vibration and produce move downward stroke time: be positioned at connection and 16 above impact absorbing connector 98 Course of action identical with the course of action of the above-mentioned amortisseur being positioned at below engaging lug 99, and be positioned at connection and below 16 The course of action of impact absorbing connector 98 is identical with the course of action of the above-mentioned amortisseur being positioned at above engaging lug 99.

The up stroke vibrated successively and downward storke can effectively energy-absorbing and bufferings.

Seeing Fig. 7, threaded connection hole 8 includes main paragraph 811, only pendulum section 812 and helix alignment's maintaining body 82.Main paragraph The outer end of 811 is provided with big footpath section 813.The perisporium of big footpath section 813 is provided with pendulum groove 814.Only pendulum section 812 is provided with yaw 815.Only pendulum Section 812 is located in big footpath section 813 rotationally.Yaw 815 is plugged in pendulum groove 814.

Helix alignment's maintaining body 82 includes coming directly towards 821 and coming directly towards drive mechanism 822.Top 821 is arranged on only pendulum section 812 In.Top drive mechanism 822 includes that the first driving post 8221 and second drives post 8222.First drives post 8221 and second to drive Post is arranged in yaw 815, and stretches out the outer face only putting section 812.

Seeing Fig. 8, pendulum groove 814 has three, and yaw 815 also wants three accordingly.Three pendulum grooves 814 are along only pendulum section 812 Circumferentially distributed.Do not have between yaw and pendulum groove to be designed with helix alignment's maintaining body 82.Only pendulum section 812 is according to the most square in figure Support with a side of sidewall portion 8141 of pendulum groove to turning to (blind rivet is also screwed into rotationally clockwise) yaw 815 according in figure When being connected together, yaw 815 and pendulum groove another side of sidewall portion 8142 between produce swing gap 83, the screw thread of main paragraph 811 and Only the screw thread of pendulum section 812 is positioned on same helix.

Seeing Fig. 9, top drive mechanism 822 also includes driving post fastening screw 8224, inserting spring 8223 and drive post Depart from spring 825.Post fastening screw 8224 is driven to be positioned at big footpath section 813 and be inserted in yaw 815.Insert spring 8223 are positioned at big footpath section 813.

See Fig. 3, Fig. 7, Fig. 8 and Fig. 9, when threaded connection hole 8 is screwed on thread head, press the first drive rod 8221, First drive rod 8221 drives top 821 to extend into by being connected on another side of sidewall portion 8142 of pendulum groove in swinging gap 83 Yaw 815 is made to be connected to together with a side of sidewall portion 8141 of pendulum groove and make the screw thread of main paragraph 811 and only put the spiral shell of section 812 Stricture of vagina aligns and is positioned on same helix, now drives post fastening screw 8224 to insert under the effect inserting spring 8223 In driving post 8221 to first, make the first driving post 8221 be maintained at current state (opposite side being connected to put groove will to be come directly towards The state of the position in wall portion).Make to rotate during thread head convenient and strength-saving.

When threaded connection hole and thread head are screwed together, pressing the second driving post 8222, second drives post 8222 to drive Drive post fastening screw 8224 to depart from the first driving post 8221, drive post to depart from spring 825 and drive the first driving post 8221 to eject And lose the driving effect to top 821 and make to drive post fastening screw 8224 can not be inserted into the first driving post 8221 In.Now only can relatively rotate between pendulum section 812 and main paragraph 811, vibrated and cause blind rivet to have with connecting screwed hole During the trend departed from, only the rotation of pendulum section 812 and main paragraph 811 can cause the screw thread of the two to stagger, thus stops the product of abjection Raw.

Claims

1. an automobile front axle casting die, it is characterised in that including die ontology, described die ontology is provided with casting gate, described Die ontology includes upper die and lower die, is provided with front axle die cavity, is provided with front axle mould in described front axle die cavity in described upper die and lower die Type support chip, described casting gate by being arranged on the first half of upper mold and being arranged on the lower half of lower mold and surround and form, described casting The inner of mouth is provided with protuberance in the cast gate protruding described front axle die cavity, described front axle model support sheet protuberance in described cast gate Side start to extend to cast gate along the boundary line of upper die and lower die in the opposite side of protuberance.

A kind of automobile front axle casting die the most according to claim 1, it is characterised in that described die ontology is provided with at least two Individual shockproof suspension frame, described shockproof suspension frame includes the impact absorbing connector being arranged oppositely along the vertical direction a pair, and described damping is even Connecing the damping oil cylinder that device includes being vertically arranged and the damping spring being set on damping oil cylinder, described damping oil cylinder includes damping oil cylinder cylinder Body and the first piston being arranged at damping oil cylinder cylinder body, described first piston is connected to one by piston rod with described die ontology Rising, one end of described damping spring links together with described piston rod, the other end is connected to one with described damping oil cylinder cylinder body Rise, in described damping oil cylinder cylinder body, be additionally provided with the second piston and separating plate, between described separating plate and first piston, form first Oil pocket, forms the second oil pocket, is provided with driving between described first piston and the second piston between described separating plate and the second piston First piston and the second piston produce to the electromagnetic force adhesive mechanism of movement, and described separating plate is communicated with the first oil pocket and the The intercommunicating pore of two oil pockets, the door-plate that described intercommunicating pore is hinged with towards the second unidirectional unlatching of oil pocket makes door-plate pass close with being provided with Door-plate resetting-mechanism, described door-plate is provided with some main damp channels running through door-plate, is provided with velocity sensor in described intercommunicating pore； When described velocity sensor detects that oil flows to the second oil pocket from the first oil pocket, described electromagnetic force adhesive mechanism stop driving the One piston and the second piston are to movement, when described velocity sensor detects that oil flows to the first oil pocket from the second oil pocket, institute State electromagnetic force adhesive mechanism's driving first piston and the second piston to movement.

A kind of automobile front axle casting die the most according to claim 2, it is characterised in that described door-plate resetting-mechanism is for arranging Torsion spring in the rotating shaft of door-plate.

4. according to a kind of automobile front axle casting die described in Claims 2 or 3, it is characterised in that described electromagnetic force adhesive mechanism Including being arranged at the electric magnet of first piston and being arranged at the ferrimagnet sheet that the same electric magnet of the second piston coordinates.

5. according to a kind of automobile front axle casting die described in Claims 2 or 3, it is characterised in that described damping oil cylinder cylinder body and Piston rod is designed with threaded connection hole, and described threaded connection hole includes main paragraph and the only section of pendulum, and the outer end of described main paragraph is provided with Big footpath section, the perisporium of described big footpath section is provided with pendulum groove, and described only pendulum section is provided with yaw, and described only pendulum section is located in rotationally In the section of described big footpath, described yaw is plugged in described pendulum groove, is provided with swing gap, described main body between described yaw and pendulum groove The screw thread of section and the screw thread of described only pendulum section may be adjusted to be positioned on same helix.

A kind of automobile front axle casting die the most according to claim 5, it is characterised in that described only pendulum section turns to described When yaw is connected to together with a side of sidewall portion of described pendulum groove, the screw thread of the screw thread of described main paragraph and only pendulum section is positioned at same spiral shell In spin line, described swing gap fork and pendulum groove another side of sidewall portion between.

A kind of automobile front axle casting die the most according to claim 6, it is characterised in that described threaded connection hole is additionally provided with spiral shell Stricture of vagina alignment maintaining body, described helix alignment's maintaining body includes the top being arranged in described only pendulum section, drives top to stretch into Described swing gap and be connected to the top drive mechanism on another side of sidewall portion of described pendulum groove.

A kind of automobile front axle casting die the most according to claim 7, it is characterised in that described top drive mechanism includes same Top is connected to the first driving post together, makes the first driving post be maintained at top to be connected to put on another side of sidewall portion of groove Drive post fastening screw, the driving post fastening screw of position are inserted into the insertion spring in the first driving post, drive Post fastening screw is extracted the second driving post of the first driving post and drives the driving post of the first driving post disengaging top to depart from spring.