CN109986010A - Hot forged mould and its cooling means with internal cooling system - Google Patents
Hot forged mould and its cooling means with internal cooling system Download PDFInfo
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- CN109986010A CN109986010A CN201910323770.2A CN201910323770A CN109986010A CN 109986010 A CN109986010 A CN 109986010A CN 201910323770 A CN201910323770 A CN 201910323770A CN 109986010 A CN109986010 A CN 109986010A
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- Prior art keywords
- cushion block
- water
- formed punch
- upper mold
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/08—Accessories for handling work or tools
- B21J13/14—Ejecting devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of hot forged mould and its cooling means with internal cooling system, the hot forged mould includes upper mold inner cold system and lower die inner cold system, in hot forging process, formed punch inside circumference is passed through cooling water, cavity plate inside circumference is passed through cooling water, more sufficiently, uniformly cools down formed punch and cavity plate.When the cooling means includes the following steps: molding, cold in state is disconnected in formed punch, lower die inner cold system is connected, go out cooling water towards the base injcction of hot forging, female mold support cushion block mechanism is in the state of cooling, after the completion of hot forging, upper mold is lifted, the work of upper mold inner cold system, formed punch surrounding forms flowing water environment, until die sinking, replace with new hot forging, upper mold inner cold system is during upper mold declines, stopping water flowing, cold in cavity plate to be constantly in water flowing state.This invention ensures that stable for water environment, it is ensured that in hot forging process, the cooling of formed punch, hot forging and cavity plate extends the service life of each component, improves the performance of hot forging.
Description
Technical field
The present invention relates to hot forged moulds and its cooling means with internal cooling system, belong to hot forged mould technical field.
Background technique
When tradition hot forging, mold need to be heated to 200 DEG C or so, and mold lubrication is sprayed at mold table using graphite suspension
Face, remaining graphite plays the role of lubricant medium at high temperature after evaporation.The drawbacks of this lubricating system, is, can generate
A large amount of graphite steam, causes shopwork environmental pollution.In the hot forging form of a large amount of water, mold does not need to heat, but needs
It is timely cooled down, mold is kept to be in normal temperature state in process of production, it is remaining by die surface when Quick-forming
Instant water is vaporized into vapor and is lubricated, if cooling is not in time, mold and forging will appear bonding phenomenon and ejection strength and swash
The service life of mold greatly reduces in the phenomenon that increasing, and even will cause product sometimes can not shape, and therefore, it is necessary to cold in lower die
But, cooling device is cooled down in time in upper mold.
Summary of the invention
To solve the above problems, the invention discloses a kind of hot forged moulds with internal cooling system and its cold
But method, specific technical solution are as follows:
A kind of hot forged mould with internal cooling system, including upper die and lower die, the upper mold include form frame system, the mould bases
Knock-out mechanism is vertically provided in system, the lower end of knock-out mechanism is provided with punch-head assembly, and knock-out mechanism passes through punch support pad
Block system is set in form frame system, and knock-out mechanism is with synchronous vertically movable, the knock-out mechanism in form frame system of punch-head assembly
After decline, hot forging on punch hot forging lower mold holder,
The lower die includes lower mold holder, female mold support cushion block mechanism, cavity plate and cavity plate fixed mechanism, the cavity plate fixed mechanism
It is enclosed in cavity plate surrounding, female mold support cushion block mechanism is arranged between cavity plate and lower mold holder,
Upper mold inner cold system is additionally provided in the upper mold, upper mold inner cold system is arranged in punch support cushion block system, described
Upper mold inner cold system and punch-head assembly synchronization lifting form flowing cooling water environment in punch-head assembly surrounding,
Lower die inner cold system is provided in the lower die, the lower die inner cold system is introduced from lower mold holder, from female mold support pad
It is sprayed between block mechanism and cavity plate, cavity plate, hot forging and female mold support cushion block mechanism is cooled down.
Further, the form frame system includes horizontally disposed upper padding plate, and the lower surface of the upper padding plate is close to fix
There is cope plate, the cope plate offers the cavity of longitudinal cross-section shape in the shape of a " convex ", and shape is provided in the cavity and it is suitable
The upper T-type cushion block matched, the center of the upper T-type cushion block and upper padding plate offer vertically communicated dnockout hole,
Upper mold circle is provided with below the cavity at the cope plate center, the surrounding of the upper mold circle is embedded to be fixedly installed on cope plate
The center of lower surface, the upper mold circle is hollow up and down, and the punch support cushion block system is set in upper mold circle, and is formed
With the perforation of dnockout hole and coaxial channel；
The knock-out mechanism includes the knockout rod being arranged in dnockout hole, the lower end setting dnockout cushion block of the knockout rod and discharging
Bar, between knockout rod and discharge arm, the knockout rod, dnockout cushion block and discharge arm are coaxially fixedly installed dnockout cushion block；
The punch-head assembly includes formed punch and is coaxially arranged the formed punch set being fixed on outside formed punch, and the formed punch set includes that hot jacket is cold
The formed punch set internal layer and formed punch set outer layer, formed punch set matched offer from it gas extended on one side outside formed punch set with punch. contact
Hole I；
The punch support cushion block system includes formed punch No.1 cushion block, the access pad being successively set on inside upper mold circle from top to bottom
No. two cushion blocks of block and formed punch, the formed punch No.1 cushion block, access No. two cushion block axial centres of cushion block and formed punch offer through-hole,
The through-hole is coaxially penetrated through with dnockout hole, and dnockout cushion block and discharge arm are through in the through-hole；
The dnockout cushion block is located at below knockout rod, and the diameter of dnockout cushion block is less than the diameter of knockout rod, forms horizontal shoulder,
Diameter at the top of the discharge arm is identical as the diameter of dnockout cushion block, and following diameter reduces at the top of discharge arm, forms limit and stops
Shoulder.
Further, the upper mold inner cold system includes that upper ejector pin, spring and formed punch enter water swivel,
Water flowing chamber is axially provided in the upper ejector pin, the top of the water flowing chamber is cecum, and lower part is open end, and upper ejector pin exists
Its side wall close to water flowing chamber top radially offers the horizontal water inflow slot across side wall, and the horizontal water inflow slot is passed through with water flowing chamber
It is logical；
Axially across access No. two cushion blocks of cushion block and formed punch, the top of upper ejector pin is located in formed punch No.1 cushion block the upper ejector pin
In through-hole, it is provided with spring above the upper ejector pin, spring cushion block, spring pad are provided between the spring and knock-out mechanism
The top peripheral of block is fixed with upper T-type cushion block, and lower end is fixed with access cushion block, and the spring cushion block is set in outside knock-out mechanism
Portion,
The lower end of the upper ejector pin bears against formed punch, and the formed punch axially offers cooling-water duct, the lower end of cooling-water duct
It extending horizontally to outside formed punch, the water flowing chamber of the upper ejector pin is docked with the cooling-water duct of formed punch in vertical direction perforation,
The formed punch enters water swivel and is set in access cushion block, and access cushion block offers connection formed punch and enters water swivel and horizontal water inflow
The intake tunnel of slot；
The access cushion block includes the cold access cushion block internal layer matched of hot jacket and access cushion block outer layer, and the upper ejector pin has two, position
In discharge arm two sides, axially across access cushion block internal layer, access cushion block internal layer axially offers upper ejector pin movable passageway, upper top
Bar can be moved up and down in upper ejector pin movable passageway, and the access cushion block outer layer is offered with access cushion block internal layer interface and surrounded
The groove ring of one circle, the access cushion block internal layer level offer the priming hole of connection mandril movable passageway and groove ring, institute
It states intake tunnel and is communicated to groove ring, the formed punch enters water swivel and is arranged in intake tunnel.
Further, the lower mold holder includes lower bolster and lower template, and the lower template is fixed on lower bolster, lower bolster
Coaxial through-hole is offered with lower template, lower T-type cushion block is provided in the through-hole, the lower T-type cushion block offers push rod vertically
Through-hole；
The female mold support cushion block mechanism includes the lower No.1 cushion block being arranged on lower T-type cushion block and lower No. two cushion blocks, under described
No. two cushion blocks are located at the top of lower No.1 cushion block, and the lower No.1 cushion block and lower No. two cushion blocks offer coaxial through-hole, described
The adjusting block for being close to lower T-type cushion block is provided in the through-hole of lower No.1 cushion block；
The cavity plate includes the cold cavity plate internal layer and cavity plate outer layer matched of hot jacket, and cavity plate is located on lower No. two cushion blocks,
The cavity plate fixed mechanism includes cavity plate tight loop, lower impression and lower die holder, and the cavity plate tight loop and lower impression cover
It is located at cavity plate surrounding, setting and recessed groove on the inside of the top surrounding of lower impression, the cavity plate tight loop portion concave is in recessed groove
In, the lower section of lower impression is arranged in lower die holder, and lower die holder is enclosed in cavity plate, lower No. two cushion blocks and lower No.1 cushion block surrounding.
Further, the lower die inner cold system includes interior water spray push rod and lower push rod, the interior water spray push rod through
In the through-hole of lower T-type cushion block, interior spray chamber is axially offered in the interior water spray push rod, interior spray chamber lower end is cecum, upper end
For open end, the side wall of interior spray chamber offers water inlet, and water inlet and interior spray chamber penetrate through,
Towards the widened enlarged cavity of surrounding, the diameter of enlarged cavity is greater than the diameter of through-hole at the middle part of the through-hole of the lower T-type cushion block,
Water inlet is located in enlarged cavity,
Being horizontally disposed in the lower template has interior water spray road block, and the center of interior water spray road block offers intake tunnel, intake tunnel
One end is open end, and one end is cecum, and cecum side side wall is provided with inlet opening, and cavity plate water supply connector, institute are equipped in inlet opening
Against lower T-type cushion block, lower T-type cushion block offers the diversion channel of connection intake tunnel and enlarged cavity for the open end；
The center of the lower push rod offers spray chamber, and the lower end of spray chamber is open end, and upper end is cecum, and the surrounding of the open end is set
It is equipped with the flange docked with adjusting block, the center of adjusting block offers the centre bore of connection spray chamber and interior spray chamber, lower push rod
Top is located in the central through hole of lower No. two cushion blocks, and the upper portion side wall of lower push rod offers several hole for water sprayings,
The central through hole diameter of lower No. two cushion blocks is less than the central through hole diameter of lower No.1 cushion block；
It is provided with stomata II between the lower No.1 cushion block and lower No. two cushion blocks, between lower No.1 cushion block and lower T-type cushion block,
The side wall of the lower No.1 cushion block, which offers, extends to external side opening.
Further, the knock-out mechanism, punch-head assembly and lip block system are in eccentric position in form frame system,
The cavity plate, female mold support cushion block mechanism are in eccentric position in cavity plate fixed mechanism.
The internal cooling method of hot forged mould is provided with cold system in the upper mold inner cold system and lower die in the hot forged mould
System, specifically includes the following steps:
Step 1: molding state: being placed with hot forging in cavity plate, and press ram drops to bottom dead centre, in punch hot forging lower die
Hot forging, the resistance that formed punch is prevented it from declining by hot forging, formed punch and upper ejector pin move down stroke less than punch support pad
What block system and formed punch covered moves down stroke, and the intake tunnel accessed on cushion block is located at the lower section of the horizontal water inflow slot of upper ejector pin, into
Aquaporin is blocked, at this point, water inlet system is connected in cavity plate water supply connector, conveys water towards water supply connector, water is via intake tunnel
Enlarged cavity is flowed to, water fills full enlarged cavity, and enters interior spray chamber from the water inlet of interior water spray push rod, and water level is in interior spray chamber
The top for inside rising to lower push rod is sprayed from the hole for water spraying of lower push rod, and water is full of the external surrounding of lower push rod, and from lower No.1
It is flowed out in the side opening of cushion block；
Step 2: the micro- lift of upper mold: after the completion of hot forging, upper mold micro- lift upwards, the hot forging on formed punch and lower die, which exists, is adhered phenomenon,
Formed punch is influenced by power is adhered, and during upper mold rises, level height or formed punch when formed punch is still in hot forging are moved up
Speed be less than the speed that upper mold rises, at this point, top mold holder rises, formed punch set is also synchronous to be risen, and still, forcer position does not become,
Or the distance risen is less than the climb of access cushion block, the horizontal water inflow slot for being finally reached intake tunnel and upper ejector pin is horizontal
Alignment, the water of upper mold inner cold system enters the water flowing chamber that water swivel enters in upper ejector pin by formed punch, and flows down to formed punch
Cooling-water duct is sprayed from the lower end of the cooling-water duct in formed punch, consistent in the position of lower die inner cold system and step 1；
Step 3: upper mold is lifted: then step 2, and press ram continues to move up, and upper mold continues to rise, on upper ejector pin continues
It moves, formed punch, which is thrown away, is adhered hot forging, and upper mold inner cold system is consistent with step 2, at this point, interior water spray push rod, adjusting block and lower push rod are same
Step moves up, and adjusting block blocks the side opening of lower No.1 cushion block, and cavity plate water supply connector is still constantly being directed towards in lower die inner cold system
Water is conveyed, water flows out in the stomata II between lower No.1 cushion block and lower No. two cushion blocks after spraying in the hole for water spraying of lower push rod；
Step 4: upper mold continues to lift: then step 3, press ram continue to lift up, and formed punch is separated with hot forging, discharge arm
Continue to push down hot forging, upper mold inner cold system is consistent with step 2, and lower push rod continues up ejection, the water in lower die inner cold system
It sprays, is overflowed in matrix cavity from the hole for water spraying of lower push rod, reach the cooling of matrix cavity surface, by lower No. two cushion blocks and lower No.1
Stomata II between cushion block is discharged；
Step 5: die sinking: press ram reaches top dead-centre, and hot forging is transported by manipulator, the water that lower die inner cold system sprays
It is directly full of matrix cavity, upper mold inner cold system is consistent with step 2；
Step 6: it puts blank hot forging: being handled by a robotic arm blank hot forging into cavity plate, press ram moves down, upper top
The horizontal water inflow slot of bar moves up, and is blocked by access cushion block, and upper mold inner cold system stops working, and blank hot forging will be in matrix cavity
Water squeezes out, and lower push rod moves down, and lower die inner cold system is in running order, and the water below adjusting block is from the side opening of lower No.1 cushion block
Discharge；
Step 7: upper mold continues to decline: upper mold continues to decline, and blank hot forging is pressing against lower push rod and adjusting block continues to move down, under
Mould inner cold system is in running order, and adjusting block blocks the side opening of lower No.1 cushion block, and the water below adjusting block is from lower No.1 cushion block
Stomata II between lower T-type cushion block is discharged；
Step 8: mold again: press ram reaches bottom dead centre, and the forming of blank hot forging terminates, lower die inner cold system and upper
Mould inner cold system is consistent with step 1.
The beneficial effects of the present invention are:
Upper mold inner cold system of the invention, using spring elastic property and formed punch be self-possessed, dexterously realize begin to cool and
Stop cooling switching, ensure that the temperature of the inside side wall of formed punch blind hole maintains room temperature, while ensure that formed punch can protrude foot
Enough height make external cooling system that can act on the outside side wall of blind hole of formed punch, solve the hot forging form shape of a large amount of water
At it is complex-curved when, the problem that upper mold shaped portion concave shape can not cool down realizes being fully cooled for upper mold shaped portion,
Die life is improved, the craftsmanship of a large amount of water hot forging formings is improved.
Lower die inner cold system of the invention, cooling water are full of in the through-hole of interior lower No.1 cushion block, lower No. two cushion blocks, lower push rod
Surrounding be full of cooling water, to female mold support cushion block mechanism it is inside and outside it is equal can be fully cooled, realize internal cooling and outer
The cooling effect taken into account in portion.After hot forging is taken away, cooling water is full of matrix cavity, abundant to the cooling of cavity plate, timely, efficient, complete
Face.The present invention, which is realized, gives cavity plate cooling by fixed cooling system, reaches cavity plate and is in swimming water always, does not influence to disguise automatically
The movement set avoids traditional dilatory hose.
Detailed description of the invention
Status diagram when Fig. 1 is upper mold inner cold system of the present invention work,
Fig. 2 is the enlarged drawing after Fig. 1 removal upper padding plate,
Fig. 3 is status diagram when upper mold inner cold system of the present invention does not work,
Fig. 4 is the schematic diagram after Fig. 3 removal knock-out mechanism,
Fig. 5 is the status diagram that upper padding plate is removed in Fig. 4,
Fig. 6 is the structural schematic diagram of lower die of the present invention,
Fig. 7 is present invention molding status diagram,
Fig. 8 is the status diagram of the micro- lift of upper mold of the present invention,
Fig. 9 is that Fig. 8 continues the status diagram after lifting,
Figure 10 is that Fig. 9 continues the status diagram after lifting,
Figure 11 is die opening state schematic diagram of the present invention,
Figure 12 is that Figure 11 replaces with the status diagram after new hot forging,
Figure 13 is the status diagram after the decline of Figure 12 upper mold,
Figure 14 is the status diagram of Figure 13 molding,
Reference signs list: 1-cope plate, 2-upper padding plates, 3-knockout rods, 4-upper T-type cushion blocks, 5-formed punch No.1 cushion blocks,
6-upper mold circles, 7-dnockout cushion blocks, the 8-cushion blocks of formed punch two, 9-discharge arms, 10-formed punches, 11-formed punches set internal layer, 12-
Formed punch covers outer layer, and 13-formed punch sets, 14-access cushion block internal layers, 15-access cushion block outer layers, 16-access cushion blocks, 17-enter water
Connector, 18-upper ejector pins, 19-springs, 20-spring backing plates, 21-slide plate framves, 22-stomatas I, 23-dumping pits, 24-draw
Water hole, 25-groove rings, 26-water flowing chambers, 27-horizontal water inflow slots, 28-dnockout cushion block holes, 29-dnockout holes, 30-pins,
31-cooling-water ducts, 32-intake tunnels, 33-lower bolsters, 34-lower templates, 35-lower T-type cushion blocks, 36-interior water sprays push away
Bar, 37-interior spray chambers, 38-water inlets, 39-enlarged cavities, 40-diversion channels, 41-interior water spray road blocks, 42-inlet openings,
43-water supply connectors, 44-adjusting blocks, 45-flanges, 46-lower push rods, 47-hole for water sprayings, 48-hot forgings, in 49-cavity plates
Layer, 50-cavity plate outer layers, 51-cavity plates, 52-cavity plate tight loops, 53-lower impressions, 54-lower die holders, 55-lower No. two cushion blocks,
56-stomatas II, 57-lower No.1 cushion blocks, 58-spray chambers, 59-side openings.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
Status diagram when Fig. 1 is the upper mold inner cold system work of upper mold of the present invention, Fig. 2 are after Fig. 1 removes upper padding plate
Enlarged drawing, in conjunction with this two width attached drawing as it can be seen that being provided with form frame system, knock-out mechanism, punch-head assembly, punching in upper mold of the invention
Head lip block system and upper mold inner cold system.Form frame system includes horizontally disposed upper padding plate 2, and the lower surface of upper padding plate 2 is tight
Patch is fixed with cope plate 1, cope plate 1 and upper padding plate 2 and is fixedly connected by several pins 30 of circumference.Cope plate 1 offers vertical
To the cavity of section shape in the shape of a " convex ", the upper T-type cushion block 4 that shape is adapted to it is provided in the cavity, upper T-type cushion block 4
Center and upper padding plate 2 offer vertically communicated dnockout hole 29, are provided with upper mold circle 6, upper mold below the cavity at 1 center of cope plate
The surrounding of circle 6 is embedded to be fixedly installed on 1 lower surface of cope plate, and the center of the upper mold circle 6 is hollow up and down, and formed punch 10 supports
Cushion block system is set in upper mold circle 6, and is formed and the perforation of dnockout hole 29 and coaxial channel.
Knock-out mechanism includes the knockout rod 3 being arranged in dnockout hole 29, and the lower end of knockout rod 3 is arranged dnockout cushion block 7 and unloads
Expect bar 9, dnockout cushion block 7 is between knockout rod 3 and discharge arm 9, and coaxially fixation is set for knockout rod 3, dnockout cushion block 7 and discharge arm 9
It sets.Dnockout cushion block 7 is located in the dnockout cushion block hole 28 at access 16 center of cushion block, and discharge arm 9 is located at the discharging at 7 center of dnockout cushion block
In hole 23.
Punch-head assembly includes formed punch 10 and is coaxially arranged the formed punch set 13 being fixed on outside formed punch 10, and formed punch set 13 includes red
The cold formed punch set internal layer 11 matched and formed punch set outer layer 12 are covered, formed punch set 13 offers to contact from it with formed punch 10 extends to punching on one side
Stomata I 22 outside headgear 13.
Punch support cushion block system includes being successively set on 10 No.1 cushion block 5 of formed punch inside upper mold circle 6 from top to bottom, connecing
Enter 10 No. two cushion blocks 8 of cushion block 16 and formed punch, the 10 No.1 cushion block 5 of formed punch, access 10 No. two cushion blocks of cushion block 16 and formed punch 8 are axial
Center offers through-hole, the through-hole and the coaxial perforation in dnockout hole 29, and dnockout cushion block 7 and discharge arm 9 are through in the through-hole.
Dnockout cushion block 7 is located at 3 lower section of knockout rod, and the diameter of dnockout cushion block 7 is less than the diameter of knockout rod 3, forms horizontal shoulder, described
The diameter at 9 top of discharge arm is identical as the diameter of dnockout cushion block 7, and 9 top following diameter of discharge arm reduces, and forms limit and stops platform
Shoulder.
10 inner cold system of formed punch includes that upper ejector pin 18, spring 19 and formed punch enter water swivel 17, is axially arranged in upper ejector pin 18
There is water flowing chamber 26, the top of water flowing chamber 26 is cecum, and lower part is open end, and upper ejector pin 18 is at it close to the side on 26 top of water flowing chamber
Wall radially offers the horizontal water inflow slot 27 across side wall, and horizontal water inflow slot 27 and water flowing chamber 26 penetrate through.Upper ejector pin 18 is axial to be worn
10 No. two cushion blocks 8 of access cushion block 16 and formed punch are crossed, the top of upper ejector pin 18 is located in the through-hole in 10 No.1 cushion block 5 of formed punch, on
The top of mandril 18 is provided with spring 19, is provided with spring cushion block between spring 19 and knock-out mechanism, outside the top of spring cushion block
All fixed with upper T-type cushion block 4, lower end and access cushion block 16 are fixed, and spring cushion block is set in outside knock-out mechanism.Upper ejector pin it is upper
Side is provided with spring backing plate 20, and spring backing plate 20 includes during circular shim and being vertically installed among circular shim upwardly extends
Between bar, intermediate bar is inserted into the axial centre of spring 19, the telescopic moving for fixed spring 19 and guide springs.On
The lower end of mandril 18 bears against formed punch 10, and the formed punch 10 is axial to offer cooling-water duct 31, the lower end of cooling-water duct 31
It extends horizontally to outside formed punch 10, the water flowing chamber 26 of the upper ejector pin 18 and the cooling-water duct 31 of formed punch 10 are penetrated through in vertical direction
Docking.Formed punch enters water swivel 17 and is set in access cushion block 16, and access cushion block 16 offers connection formed punch and enters water swivel 17 and water
The intake tunnel 32 of flat intake chamber 27.Accessing cushion block 16 includes the cold access cushion block internal layer 14 matched of hot jacket and access cushion block outer layer
15, upper ejector pin 18 has two, is located at 9 two sides of discharge arm, and axially across access cushion block internal layer 14, access cushion block internal layer 14 is axial
18 movable passageway of upper ejector pin is offered, upper ejector pin 18 can be moved up and down in 18 movable passageway of upper ejector pin, access cushion block outer layer 15
The groove ring 25 around one circle is offered with access 14 interface of cushion block internal layer, access 14 level of cushion block internal layer offers connection
The priming hole 24 of mandril movable passageway and groove ring 25, intake tunnel 32 are communicated to groove ring 25, and formed punch enters the setting of water swivel 17
In intake tunnel 32.
Fig. 3 is status diagram when 10 inner cold system of formed punch of the invention does not work, and Fig. 4 is Fig. 3 removal knock-out mechanism
Schematic diagram afterwards, Fig. 5 are the status diagrams that upper padding plate 2 is removed in Fig. 4, in conjunction with this three width attached drawing as it can be seen that when cold in formed punch 10
When system is in off position, priming hole 24 is staggered with horizontal water inflow slot 27, and horizontal water inflow slot 27 is plugged.
Fig. 6 is the structural schematic diagram of lower die of the present invention, in conjunction with attached drawing as it can be seen that lower die of the invention includes lower mold holder, cavity plate
51 lip block mechanisms, cavity plate 51, cavity plate fixed mechanism and lower die inner cold system.
Lower mold holder includes lower bolster 33 and lower template 34, and the lower template 34 is fixed on lower bolster 33,33 He of lower bolster
Lower template 34 offers coaxial through-hole, and lower T-type cushion block 35 is provided in the through-hole, and lower T-type cushion block 35 offers push rod vertically
Through-hole.
Female mold support cushion block mechanism includes the lower No.1 cushion block 57 being arranged on lower T-type cushion block 35 and lower No. two cushion blocks 55,
Lower No. two cushion blocks 55 are located at the top of lower No.1 cushion block 57, and lower No.1 cushion block 57 and lower No. two cushion blocks 55 offer coaxial lead to
Hole is provided with the adjusting block 44 for being close to lower T-type cushion block 35 in the through-hole of lower No.1 cushion block 57.
Cavity plate 51 includes the cold cavity plate internal layer 49 and cavity plate outer layer 50 matched of hot jacket, and cavity plate 51 is located on lower No. two cushion blocks 55.
Cavity plate fixed mechanism includes cavity plate tight loop 52, lower impression 53 and lower die holder 54, cavity plate tight loop 52 and lower impression
53 are set in 51 surrounding of cavity plate, setting and recessed groove on the inside of the top surrounding of lower impression 53,52 portion concave of cavity plate tight loop
In recessed groove, lower die holder 54 is arranged in the lower section of lower impression 53, lower die holder 54 be enclosed in cavity plate 51, lower No. two cushion blocks 55 and under
57 surrounding of No.1 cushion block.
Lower die inner cold system includes interior water spray push rod 36 and lower push rod 46, and interior water spray push rod 36 is through lower T-type cushion block 35
Through-hole in, axially offer interior spray chamber 37 in interior water spray push rod 36, interior 37 lower end of spray chamber is cecum, and upper end is opening
End, the side wall of interior spray chamber 37 offer water inlet 38, and water inlet 38 and interior spray chamber 37 penetrate through.The through-hole of lower T-type cushion block 35
Middle part towards the widened enlarged cavity 39 of surrounding, the diameter of enlarged cavity 39 is greater than the diameter of through-hole, and water inlet 38 is located at enlarged cavity
In 39.Being horizontally disposed in lower template 34 has interior water spray road block 41, and the center of interior water spray road block 41 offers intake tunnel 32, intakes
32 one end of channel be open end, one end is cecum, and cecum side side wall is provided with inlet opening 42, be equipped in inlet opening 42 cavity plate into
Water swivel 43, against lower T-type cushion block 35, lower T-type cushion block 35 offers connection intake tunnel 32 and enlarged cavity 39 for the institute open end
Diversion channel 40.The center of lower push rod 46 offers spray chamber 58, and the lower end of spray chamber 58 is open end, and upper end is cecum, this is spacious
The surrounding at mouth end is provided with the flange 45 docked with adjusting block 44, and the center of adjusting block 44 offers connection spray chamber 58 and interior water spray
The top of the centre bore of chamber 37, lower push rod 46 is located in the central through hole of lower No. two cushion blocks 55, and the upper portion side wall of lower push rod 46 is opened
Equipped with several hole for water sprayings 47.The central through hole diameter of lower No. two cushion blocks 55 is less than the central through hole diameter of lower No.1 cushion block 57.
Stomata II 56 is provided between lower No.1 cushion block 57 and lower No. two cushion blocks 55, between lower No.1 cushion block 57 and lower T-type cushion block 35.
The side wall of lower No.1 cushion block 57, which offers, extends to external side opening 59.
Knock-out mechanism, punch-head assembly and lip block system are in eccentric position, cavity plate 51, cavity plate 51 in form frame system
Lip block mechanism is also at eccentric position in cavity plate fixed mechanism.Water across stomata I 22 and stomata II 56 passes through bias
It trickles away in the gap at place.
In conjunction with attached drawing 7-14, elaboration application process in actual production of the invention, the internal cooling method of hot forged mould,
Specifically includes the following steps:
Step 1: molding state: in conjunction with Fig. 7, hot forging 48 is placed in cavity plate, press ram drops to bottom dead centre, formed punch
The stroke that moves down of the hot forging being hot-forged in lower die, the resistance that formed punch is prevented it from declining by hot forging, formed punch and upper ejector pin is less than
What punch support cushion block system and formed punch covered moves down stroke, and the intake tunnel accessed on cushion block is located at the horizontal water inflow slot of upper ejector pin
Lower section, intake tunnel blocked, at this point, water inlet system is connected in cavity plate water supply connector, convey water towards water supply connector, water via
Intake tunnel flows to enlarged cavity, and water fills full enlarged cavity, and enters interior spray chamber from the water inlet of interior water spray push rod, and water level exists
The top that lower push rod is risen in interior spray chamber is sprayed from the hole for water spraying of lower push rod, and water is full of the external surrounding of lower push rod, and
It is flowed out from the side opening of lower No.1 cushion block；
Step 2: the micro- lift of upper mold: in conjunction with Fig. 8, after the completion of hot forging, upper mold micro- lift upwards, the hot forging on formed punch and lower die exists
Be adhered phenomenon, formed punch is influenced by power is adhered, upper mold rise during, formed punch still in hot forging when level height, or
The speed that person's formed punch moves up is less than the speed that upper mold rises, at this point, top mold holder rises, formed punch set is also synchronous to be risen, still, formed punch
Position does not become, or the distance risen is less than the climb of access cushion block, is finally reached the level of intake tunnel and upper ejector pin
Intake chamber horizontal alignment, the water of upper mold inner cold system enter the water flowing chamber that water swivel enters in upper ejector pin by formed punch, and to flowing down
The cooling-water duct for moving formed punch is sprayed from the lower end of the cooling-water duct in formed punch, the position of lower die inner cold system and step
It is consistent in one；
Step 3: upper mold is lifted: in conjunction with Fig. 9, then step 2, press ram continue to move up, and upper mold continues to rise, upper ejector pin
Continue to move up, formed punch, which is thrown away, is adhered hot forging, and upper mold inner cold system is consistent with step 2, at this point, interior water spray push rod, adjusting block and under
Mandril, which synchronizes, to move up, and adjusting block blocks the side opening of lower No.1 cushion block, and cavity plate water supply connector is still constantly being directed towards cold in lower die
Water, stomata II of the water after spraying in the hole for water spraying of lower push rod, between lower No.1 cushion block and lower No. two cushion blocks are conveyed in system
Middle outflow；
Step 4: upper mold continues to lift: in conjunction with Figure 10, then step 3, press ram are continued to lift up, formed punch and hot forging point
From discharge arm continues to push down hot forging, and upper mold inner cold system is consistent with step 2, and lower push rod continues up ejection, cold in lower die
Water in system is sprayed from the hole for water spraying of lower push rod, is overflowed in matrix cavity, is reached the cooling of matrix cavity surface, is padded by lower No. two
Stomata II between block and lower No.1 cushion block is discharged；
Step 5: die sinking: in conjunction with Figure 11, press ram reaches top dead-centre, and hot forging is transported by manipulator, lower die inner cold system
The water of ejection is directly full of matrix cavity, and upper mold inner cold system is consistent with step 2；
Step 6: it puts blank hot forging: in conjunction with Figure 12, being handled by a robotic arm blank hot forging into cavity plate, press ram
It moves down, the horizontal water inflow slot of upper ejector pin moves up, and is blocked by access cushion block, and upper mold inner cold system stops working, and blank hot forging will
Water in matrix cavity squeezes out, and lower push rod moves down, and lower die inner cold system is in running order, and the water below adjusting block is from lower No.1 pad
It is discharged in the side opening of block；
Step 7: upper mold continues to decline: in conjunction with Figure 13, upper mold continues to decline, blank hot forging pressing against lower push rod and adjusting block after
Continuous to move down, lower die inner cold system is in running order, and adjusting block blocks the side opening of lower No.1 cushion block, and the water below adjusting block is under
Stomata II between No.1 cushion block and lower T-type cushion block is discharged；
Step 8: mold again: in conjunction with Figure 14, press ram reaches bottom dead centre, and the forming of blank hot forging terminates, cold in lower die
System and upper mold inner cold system are consistent with step 1.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
Technical solution consisting of any combination of the above technical features.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (7)
1. a kind of hot forged mould with internal cooling system, including upper die and lower die, the upper mold include form frame system, the mould
Knock-out mechanism is vertically provided in frame system, the lower end of knock-out mechanism is provided with punch-head assembly, and knock-out mechanism passes through punch support
Cushion block system is set in form frame system, and knock-out mechanism is with synchronous vertically movable, the crushing machine in form frame system of punch-head assembly
After structure decline, the hot forging on punch hot forging lower mold holder,
The lower die includes lower mold holder, female mold support cushion block mechanism, cavity plate and cavity plate fixed mechanism, the cavity plate fixed mechanism
It is enclosed in cavity plate surrounding, female mold support cushion block mechanism is arranged between cavity plate and lower mold holder,
It is characterized in that, being additionally provided with upper mold inner cold system in the upper mold, upper mold inner cold system is arranged in punch support cushion block
In system, the upper mold inner cold system and punch-head assembly synchronization lifting form flowing cooling water environment in punch-head assembly surrounding,
Lower die inner cold system is provided in the lower die, the lower die inner cold system is introduced from lower mold holder, from female mold support pad
It is sprayed between block mechanism and cavity plate, cavity plate, hot forging and female mold support cushion block mechanism is cooled down.
2. the hot forged mould according to claim 1 with internal cooling system, which is characterized in that the form frame system includes
Horizontally disposed upper padding plate, the lower surface of the upper padding plate are close to be fixed with cope plate, and the cope plate offers longitudinal cross-section
The cavity of shape in the shape of a " convex " is provided with the upper T-type cushion block that shape is adapted to it, the center of the upper T-type cushion block in the cavity
Vertically communicated dnockout hole is offered with upper padding plate,
Upper mold circle is provided with below the cavity at the cope plate center, the surrounding of the upper mold circle is embedded to be fixedly installed on cope plate
The center of lower surface, the upper mold circle is hollow up and down, and the punch support cushion block system is set in upper mold circle, and is formed
With the perforation of dnockout hole and coaxial channel；
The knock-out mechanism includes the knockout rod being arranged in dnockout hole, the lower end setting dnockout cushion block of the knockout rod and discharging
Bar, between knockout rod and discharge arm, the knockout rod, dnockout cushion block and discharge arm are coaxially fixedly installed dnockout cushion block；
The punch-head assembly includes formed punch and is coaxially arranged the formed punch set being fixed on outside formed punch, and the formed punch set includes that hot jacket is cold
The formed punch set internal layer and formed punch set outer layer, formed punch set matched offer from it gas extended on one side outside formed punch set with punch. contact
Hole I；
The punch support cushion block system includes formed punch No.1 cushion block, the access pad being successively set on inside upper mold circle from top to bottom
No. two cushion blocks of block and formed punch, the formed punch No.1 cushion block, access No. two cushion block axial centres of cushion block and formed punch offer through-hole,
The through-hole is coaxially penetrated through with dnockout hole, and dnockout cushion block and discharge arm are through in the through-hole；
The dnockout cushion block is located at below knockout rod, and the diameter of dnockout cushion block is less than the diameter of knockout rod, forms horizontal shoulder,
Diameter at the top of the discharge arm is identical as the diameter of dnockout cushion block, and following diameter reduces at the top of discharge arm, forms limit and stops
Shoulder.
3. the hot forged mould according to claim 2 with internal cooling system, which is characterized in that the upper mold inner cold system
Enter water swivel including upper ejector pin, spring and formed punch,
Water flowing chamber is axially provided in the upper ejector pin, the top of the water flowing chamber is cecum, and lower part is open end, and upper ejector pin exists
Its side wall close to water flowing chamber top radially offers the horizontal water inflow slot across side wall, and the horizontal water inflow slot is passed through with water flowing chamber
It is logical；
Axially across access No. two cushion blocks of cushion block and formed punch, the top of upper ejector pin is located in formed punch No.1 cushion block the upper ejector pin
In through-hole, it is provided with spring above the upper ejector pin, spring cushion block, spring pad are provided between the spring and knock-out mechanism
The top peripheral of block is fixed with upper T-type cushion block, and lower end is fixed with access cushion block, and the spring cushion block is set in outside knock-out mechanism
Portion,
The lower end of the upper ejector pin bears against formed punch, and the formed punch axially offers cooling-water duct, the lower end of cooling-water duct
It extending horizontally to outside formed punch, the water flowing chamber of the upper ejector pin is docked with the cooling-water duct of formed punch in vertical direction perforation,
The formed punch enters water swivel and is set in access cushion block, and access cushion block offers connection formed punch and enters water swivel and horizontal water inflow
The intake tunnel of slot；
The access cushion block includes the cold access cushion block internal layer matched of hot jacket and access cushion block outer layer, and the upper ejector pin has two, position
In discharge arm two sides, axially across access cushion block internal layer, access cushion block internal layer axially offers upper ejector pin movable passageway, upper top
Bar can be moved up and down in upper ejector pin movable passageway, and the access cushion block outer layer is offered with access cushion block internal layer interface and surrounded
The groove ring of one circle, the access cushion block internal layer level offer the priming hole of connection mandril movable passageway and groove ring, institute
It states intake tunnel and is communicated to groove ring, the formed punch enters water swivel and is arranged in intake tunnel.
4. the hot forged mould according to claim 1 with internal cooling system, which is characterized in that under the lower mold holder includes
Backing plate and lower template, the lower template are fixed on lower bolster, and lower bolster and lower template offer coaxial through-hole, in the through-hole
It is provided with lower T-type cushion block, the lower T-type cushion block offers push rod through-hole vertically；
The female mold support cushion block mechanism includes the lower No.1 cushion block being arranged on lower T-type cushion block and lower No. two cushion blocks, under described
No. two cushion blocks are located at the top of lower No.1 cushion block, and the lower No.1 cushion block and lower No. two cushion blocks offer coaxial through-hole, described
The adjusting block for being close to lower T-type cushion block is provided in the through-hole of lower No.1 cushion block；
The cavity plate includes the cold cavity plate internal layer and cavity plate outer layer matched of hot jacket, and cavity plate is located on lower No. two cushion blocks,
The cavity plate fixed mechanism includes cavity plate tight loop, lower impression and lower die holder, and the cavity plate tight loop and lower impression cover
It is located at cavity plate surrounding, setting and recessed groove on the inside of the top surrounding of lower impression, the cavity plate tight loop portion concave is in recessed groove
In, the lower section of lower impression is arranged in lower die holder, and lower die holder is enclosed in cavity plate, lower No. two cushion blocks and lower No.1 cushion block surrounding.
5. the hot forged mould according to claim 4 with internal cooling system, which is characterized in that the lower die inner cold system
Including interior water spray push rod and lower push rod, the interior water spray push rod is through in the through-hole of lower T-type cushion block, in the interior water spray push rod
Interior spray chamber is axially offered, interior spray chamber lower end is cecum, and upper end is open end, and the side wall of interior spray chamber is offered into water
Mouthful, water inlet and interior spray chamber penetrate through,
Towards the widened enlarged cavity of surrounding, the diameter of enlarged cavity is greater than the diameter of through-hole at the middle part of the through-hole of the lower T-type cushion block,
Water inlet is located in enlarged cavity,
Being horizontally disposed in the lower template has interior water spray road block, and the center of interior water spray road block offers intake tunnel, intake tunnel
One end is open end, and one end is cecum, and cecum side side wall is provided with inlet opening, and cavity plate water supply connector, institute are equipped in inlet opening
Against lower T-type cushion block, lower T-type cushion block offers the diversion channel of connection intake tunnel and enlarged cavity for the open end；
The center of the lower push rod offers spray chamber, and the lower end of spray chamber is open end, and upper end is cecum, and the surrounding of the open end is set
It is equipped with the flange docked with adjusting block, the center of adjusting block offers the centre bore of connection spray chamber and interior spray chamber, lower push rod
Top is located in the central through hole of lower No. two cushion blocks, and the upper portion side wall of lower push rod offers several hole for water sprayings,
The central through hole diameter of lower No. two cushion blocks is less than the central through hole diameter of lower No.1 cushion block；
It is provided with stomata II between the lower No.1 cushion block and lower No. two cushion blocks, between lower No.1 cushion block and lower T-type cushion block,
The side wall of the lower No.1 cushion block, which offers, extends to external side opening.
6. the hot forged mould according to claim 1 with internal cooling system, which is characterized in that the knock-out mechanism, punching
Head assembly and lip block system are in eccentric position in form frame system,
The cavity plate, female mold support cushion block mechanism are in eccentric position in cavity plate fixed mechanism.
7. the internal cooling method of hot forged mould, which is characterized in that be provided in the hot forged mould upper mold inner cold system and
Lower die inner cold system, specifically includes the following steps:
Step 1: molding state: being placed with hot forging in cavity plate, and press ram drops to bottom dead centre, in punch hot forging lower die
Hot forging, the resistance that formed punch is prevented it from declining by hot forging, formed punch and upper ejector pin move down stroke less than punch support pad
What block system and formed punch covered moves down stroke, and the intake tunnel accessed on cushion block is located at the lower section of the horizontal water inflow slot of upper ejector pin, into
Aquaporin is blocked, at this point, water inlet system is connected in cavity plate water supply connector, conveys water towards water supply connector, water is via intake tunnel
Enlarged cavity is flowed to, water fills full enlarged cavity, and enters interior spray chamber from the water inlet of interior water spray push rod, and water level is in interior spray chamber
The top for inside rising to lower push rod is sprayed from the hole for water spraying of lower push rod, and water is full of the external surrounding of lower push rod, and from lower No.1
It is flowed out in the side opening of cushion block；
Step 2: the micro- lift of upper mold: after the completion of hot forging, upper mold micro- lift upwards, the hot forging on formed punch and lower die, which exists, is adhered phenomenon,
Formed punch is influenced by power is adhered, and during upper mold rises, level height or formed punch when formed punch is still in hot forging are moved up
Speed be less than the speed that upper mold rises, at this point, top mold holder rises, formed punch set is also synchronous to be risen, and still, forcer position does not become,
Or the distance risen is less than the climb of access cushion block, the horizontal water inflow slot for being finally reached intake tunnel and upper ejector pin is horizontal
Alignment, the water of upper mold inner cold system enters the water flowing chamber that water swivel enters in upper ejector pin by formed punch, and flows down to formed punch
Cooling-water duct is sprayed from the lower end of the cooling-water duct in formed punch, consistent in the position of lower die inner cold system and step 1；
Step 3: upper mold is lifted: then step 2, and press ram continues to move up, and upper mold continues to rise, on upper ejector pin continues
It moves, formed punch, which is thrown away, is adhered hot forging, and upper mold inner cold system is consistent with step 2, at this point, interior water spray push rod, adjusting block and lower push rod are same
Step moves up, and adjusting block blocks the side opening of lower No.1 cushion block, and cavity plate water supply connector is still constantly being directed towards in lower die inner cold system
Water is conveyed, water flows out in the stomata II between lower No.1 cushion block and lower No. two cushion blocks after spraying in the hole for water spraying of lower push rod；
Step 4: upper mold continues to lift: then step 3, press ram continue to lift up, and formed punch is separated with hot forging, discharge arm
Continue to push down hot forging, upper mold inner cold system is consistent with step 2, and lower push rod continues up ejection, the water in lower die inner cold system
It sprays, is overflowed in matrix cavity from the hole for water spraying of lower push rod, reach the cooling of matrix cavity surface, by lower No. two cushion blocks and lower No.1
Stomata II between cushion block is discharged；
Step 5: die sinking: press ram reaches top dead-centre, and hot forging is transported by manipulator, the water that lower die inner cold system sprays
It is directly full of matrix cavity, upper mold inner cold system is consistent with step 2；
Step 6: it puts blank hot forging: being handled by a robotic arm blank hot forging into cavity plate, press ram moves down, upper top
The horizontal water inflow slot of bar moves up, and is blocked by access cushion block, and upper mold inner cold system stops working, and blank hot forging will be in matrix cavity
Water squeezes out, and lower push rod moves down, and lower die inner cold system is in running order, and the water below adjusting block is from the side opening of lower No.1 cushion block
Discharge；
Step 7: upper mold continues to decline: upper mold continues to decline, and blank hot forging is pressing against lower push rod and adjusting block continues to move down, under
Mould inner cold system is in running order, and adjusting block blocks the side opening of lower No.1 cushion block, and the water below adjusting block is from lower No.1 cushion block
Stomata II between lower T-type cushion block is discharged；
Step 8: mold again: press ram reaches bottom dead centre, and the forming of blank hot forging terminates, lower die inner cold system and upper
Mould inner cold system is consistent with step 1.
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| CN109986010B (en) | 2020-07-10 |
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