CN106984751A - A kind of bottom belt two-way raised metalwork plate forging forming method and mould - Google Patents

A kind of bottom belt two-way raised metalwork plate forging forming method and mould Download PDF

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Publication number
CN106984751A
CN106984751A CN201710407939.3A CN201710407939A CN106984751A CN 106984751 A CN106984751 A CN 106984751A CN 201710407939 A CN201710407939 A CN 201710407939A CN 106984751 A CN106984751 A CN 106984751A
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China
Prior art keywords
pin
punch
forcing press
annular
cylinder
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CN201710407939.3A
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CN106984751B (en
Inventor
董文正
张存园
林启权
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Xiangtan University
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Xiangtan University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/02Dies or mountings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/08Accessories for handling work or tools
    • B21J13/14Ejecting devices

Abstract

The present invention discloses a kind of bottom belt two-way raised metalwork plate forging forming method and mould, manufacturing process comprises the following steps, 1) slab after preform is put into cavity plate, upper mould includes punch-pin, punch-pin is externally provided with the annular punch-pin for being oriented to be slidably matched therewith, punch-pin and annular punch-pin are connected with interior outer cylinder body output end above forcing press respectively, and annular punch-pin thickens bottom slab bottom and end pressurization respectively with the load more than punch-pin;2) load of annular punch-pin is constant, increases punch-pin load, makes base material shunting filling, part needed for shaping;3) punch-pin and annular punch-pin that the interior outer cylinder body above knockout course, first forcing press is connected respectively are remained stationary as, and extract the mandrel linked with cylinder body output end below forcing press out, and subsequent forcing press drives punch-pin and annular punch-pin backhaul, ejects formation of parts.The formable high projection of the present invention, dimensional accuracy, the metalwork of surface quality, reduce shaping load, improve die life.

Description

A kind of bottom belt two-way raised metalwork plate forging forming method and mould
Technical field
The present invention relates to metal material forging (plasticity) forming field, more particularly to a kind of two-way projection of bottom belt Metalwork plate forging forming method and mould.
Background technology
Bottom belt bidirectional hollow projection cup type metalwork is the knot that can be used for the fields such as Aero-Space, automobile, electronic apparatus Component and fitting is, it is necessary to which certain carrying and stronger corrosion resistance, Surface Quality and dimensional accuracy have very high requirement.It is right For traditional machine cut processing, welding, casting, there is that process is more, intensity and stock utilization are low, the essence of formation of parts Low problem is spent, during according to extrusion molding, because shaping load is big, it is necessary to large tonnage forcing press, die life is short, this External hollow height of projection is not enough.
The content of the invention
It is above-mentioned to solve it is an object of the invention to provide a kind of two-way raised metalwork plate forging forming method of bottom belt The problem of prior art is present, the manufacturing process is effectively reduced shaping load, reduces process, and increase bidirectional hollow is raised high Degree, improves the dimensional accuracy and surface quality of part;The present invention also provides a kind of plate forging and molding for being used to implement the above method Mould, can realize the shaping of outer cup bottom small round corner, effectively avoid the defects such as folding, crackle, be conducive to increase two-way Hollow height of projection.
To achieve the above object, the invention provides following scheme:The present invention provides a kind of two-way raised gold of bottom belt Belong to part plate forging forming method, comprise the following steps:
1) sheet material is pre-formed into the slab of bottom of which has holes, the slab is put on forcing press by guiding of mandrel and installed Plate forging and molding mould cavity plate in, the connected punch-pin of two output ends and annular punch-pin are respectively to cup type above the forcing press Base bottom and end pressurization, and the annular punch-pin load is more than the load of the punch-pin;
2) the forcing press pressurization so that the load of the punch-pin is more than the load that the annular punch-pin is applied, and obtains Required design of part size;
3) knockout course, the punch-pin being connected respectively with the interior outer cylinder body above the forcing press and annular punch-pin are protected Hold motionless, extract the mandrel being connected with cylinder body output end below the forcing press out, then the forcing press drives described convex Mould and annular punch-pin backhaul, eject formation of parts.
Optionally, step 1) in, two output ends drive the punch-pin and annular punch-pin descending above the forcing press, simultaneously The forcing press controls the magnitude of load of the punch-pin and annular punch-pin, after-applied with the cup type base bottom and ends contact Load, thickens bottom plate aggregation.
Optionally, step 2) in, the output end that the forcing press connects the punch-pin drives the punch-pin, connects the ring The output end of shape punch-pin drives the annular punch-pin, the filling of control metal shunt and capacity of returns, until the condition needed for shaping.
Optionally, step 2) after the completion of, keep the punch-pin and annular punch-pin motionless, cylinder body output below the forcing press End drives the mandrel motion.
Optionally, step 3) in, two output ends drive the punch-pin and ring being attached thereto above forcing press described first The synchronized backhaul of shape punch-pin, leaves after the cavity plate, the punch-pin fast backhaul different with annular punch-pin.
Optionally, step 3) in, the output end of forcing press two described first drives the punch-pin being attached thereto and convex annular The synchronized backhaul of mould, until the annular punch-pin resets, then the forcing press drives the punch-pin to continue backhaul, so as to eject into The product of shape.
Optionally, there is inner side cylinder body drive mechanism and outside cylinder body drive mechanism, the inner side above the forcing press Cylinder body drive mechanism is connected with two output ends above the forcing press respectively with the outside cylinder body drive mechanism;In described Side cylinder body drive mechanism is connected by output end and the punch-pin, and the outside cylinder body drive mechanism passes through output end and institute State annular punch-pin drive connection;There is cylinder body drive mechanism, the cylinder body drive mechanism and the mandrel below the forcing press Connection.
Metalwork plate after machine-shaping by outer cup and two it is hollow it is raised have the wall thickness such as 3 D stereo feature or Wall thickness cup configuration is constituted, and outer cup bottom is with hollow cup-shaped structure raised in axially opposite direction, outer cup type and hollow convex Play cup type cross-section profile shape unrestricted.
The present invention also provides a kind of bottom belt two-way raised metalwork plate forging and molding mould, and above-mentioned for realizing one The two-way raised metalwork plate forging forming method of bottom belt, including upper die and lower die are planted, the upper mould includes punch-pin and annular Punch-pin, the punch-pin offers central through hole vertically, and the punch-pin outer sheath is provided with the annular punch-pin, and the punch-pin is used It is connected in the inner side cylinder body drive mechanism with forcing press, the annular punch-pin is used for the outside cylinder body drive mechanism with the pressure It is connected;The lower mould includes cavity plate, sleeve pipe and mandrel, and the center of the cavity plate is provided with perforate, and the inner side of the perforate is provided with institute Sleeve pipe is stated, and the upper surface of described sleeve pipe is less than in the perforate top, described sleeve pipe provided with the mandrel, the mandrel and institute The cylinder body drive mechanism for stating forcing press is connected.
Optionally, the punch-pin is oriented to annular punch-pin and is slidably matched, and the perforate is used with described sleeve pipe and is slidably matched, Described sleeve pipe is oriented to the mandrel and is slidably matched.
The present invention achieves following technique effect relative to prior art:
The present invention proposes a kind of two-way raised metalwork plate forging forming method of bottom belt, during plate forging and molding, by plate Material is pre-formed into the cup type base of bottom of which has holes, is put into by guiding of mandrel in cavity plate, two output shaft phases above control pressure machine The punch-pin and the magnitude of load of annular punch-pin that should be connected, pressurize to cup type base bottom and end, realize the orientation of material respectively Plastic Flow, the raised cup type metalwork of contoured bottom band bidirectional hollow can be achieved to improve hole by the effect of mandrel friction of motion Cardiac prominence plays the surface quality of inner side, so as to reduce shaping load, reduces manufacturing procedure, shapes the raised cup of whole bottom belt bidirectional hollow Type metalwork, significantly improves the precision and surface quality of part, and in addition by changing punch-die, outer cup bottom roundlet can be achieved The shaping at angle, effectively avoids the defects such as folding, crackle, is conducive to increasing bidirectional hollow height of projection.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings Obtain other accompanying drawings.
Fig. 1 shows for a kind of structure of the state one of the two-way raised metalwork plate forging and molding mould of bottom belt of the present invention It is intended to;
Fig. 2 shows for a kind of structure of the state two of the two-way raised metalwork plate forging and molding mould of bottom belt of the present invention It is intended to;
Fig. 3 is the forming process schematic diagram of the invention with two-way protruding metal part plate;
Wherein, 1 die shoe;2 times bolts;3 sleeve pipes;4 cavity plates;5 annular punch-pin;6 fixed plates;
7 upper bolsters;Bolt on 8;9 punch-pin;10 mandrels;11 backing plates.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
It is above-mentioned to solve it is an object of the invention to provide a kind of two-way raised metalwork plate forging forming method of bottom belt The problem of prior art is present, the manufacturing process is effectively reduced shaping load, reduces process, and increase bidirectional hollow is raised high Degree, improves the dimensional accuracy and surface quality of part;The present invention also provides a kind of plate forging and molding for being used to implement the above method Mould, can realize the shaping of outer cup bottom small round corner, effectively avoid the defects such as folding, crackle, be conducive to increase two-way Hollow height of projection.
The two-way raised metalwork plate forging forming method of bottom belt of the present invention, comprises the following steps:
1) sheet material is pre-formed into the slab of bottom of which has holes, the slab is put on forcing press by guiding of mandrel and installed Plate forging and molding mould cavity plate in, the connected punch-pin of two output ends and annular punch-pin are respectively to cup type base above forcing press Bottom and end pressurization, and annular punch-pin load is more than the load of punch-pin;
2) forcing press pressurizes so that the load of punch-pin is more than the load that annular punch-pin is applied, design of part needed for obtaining Size;
3) knockout course, the punch-pin being connected respectively with the interior outer cylinder body above forcing press and annular punch-pin are remained stationary as, Extract the mandrel being connected with cylinder body output end below forcing press out, subsequent forcing press drives punch-pin and annular punch-pin backhaul, ejected into Shape part.
Sheet material is pre-formed into the cup type base of bottom of which has holes by operating personnel in plate forging and molding, using mandrel as guiding It is put into cavity plate, two output shafts are accordingly connected above control pressure machine punch-pin and the magnitude of load of annular punch-pin, respectively to cup Type base bottom and end pressurization, realize the orientation Plastic Flow of material, the raised cup type metalwork of contoured bottom band bidirectional hollow, So as to realize reduction shaping load, manufacturing procedure is reduced, the raised cup type metalwork of whole bottom belt bidirectional hollow is shaped.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real Applying mode, the present invention is further detailed explanation.
Fig. 1-3 are refer to, wherein, Fig. 1 is the two-way raised metalwork plate forging and molding mould of a kind of bottom belt of the invention The structural representation of the state one of tool;Fig. 2 is the two-way raised metalwork plate forging and molding mould of a kind of bottom belt of the invention State two structural representation;Fig. 3 is the forming process schematic diagram of the invention with two-way protruding metal part plate.
As depicted in figs. 1 and 2, metalwork plate forging forming method of the invention comprises the following steps:
1) slab after preform is put into the recessed of the plate forging and molding mould installed on forcing press with mandrel 10 to be oriented to In mould 4.There is interior outside cylinder body drive output, lower section has on cylinder body drive output, plate forging and molding above forcing press Mould includes being provided with an annular punch-pin 5 outside punch-pin 9, punch-pin, and punch-pin 9 is oriented to annular punch-pin 5 and is slidably matched, and inner side cylinder body drives The output end of motivation structure is connected with punch-pin 9, and outside cylinder body drive mechanism output end is connected with annular punch-pin 5, starts forcing press, pressure Inner side cylinder body drive mechanism and outside cylinder body drive mechanism above power machine act and drive the convex of output end drive connection therewith Mould 9 and annular punch-pin 5 is descending is pressurizeed respectively to cup type base bottom and end, as shown in figure 1, and the load of punch-pin 9 is constant, and ring The load of shape punch-pin 5, which increases, causes cylindrical wall material to flow to bottom and thicken part as shown in Figure 3 c, the part barrel bore with The diameter of punch-pin 9 is equal, outside diameter of cylinder is equal with cavity plate diameter, and bottom thickness is t2, highly be h2, low aperture be φ d2
2) as shown in Fig. 2 the annular punch-pin 5 connected to forcing press upper outer cylinder body drive mechanism loads constant load Lotus, and the load of punch-pin 9 increase of inner side cylinder body drive mechanism connection, make the material for being collected at bottom shunt to mandrel 10 and punch-pin 9th, two cavity fillings up and down that cavity plate 4, sleeve pipe 3 are constituted, while so that a part of material flows back to wall portion, until under punch-pin 9 Row is to the thickness of feature bottom requirement, so that formed metal element bottom bidirectional hollow bulge-structure, total height is H3, outer cup height For H1, the hollow raised external diameter in lower section is φ d4, it is highly H2, two hollow raised internal diameters are φ d2, the hollow raised external diameter in top is φ d3, bottom thickness is t, the metal parts as shown in Fig. 3 (d);
3) after the completion of part forming, knockout course, forcing press upper outer cylinder body drive mechanism and inner side cylinder body driving machine The annular punch-pin 5 and punch-pin 9 that structure is connected respectively are remained stationary as, and cylinder body drive mechanism output shaft extracts mandrel out below hydraulic coupling machine 10.To prevent that hydraulic coupling machine drives the He of punch-pin 9 first on the inside of the metalwork adhesion cavity plate 4 shaped or on the outer peripheral face of punch-pin 9 The backhaul simultaneously of annular punch-pin 5, after cavity plate 4 are departed from, hydraulic coupling machine drives the speed of punch-pin 9 to be more than the annular speed of punch-pin 5 and returned Journey, so that the cup type part of liftout plate forging and molding.
Metalwork in the present embodiment needs to improve two hollow raised medial surface quality, only mandrel 10 need to be driven to carry out Repeatedly motion, if drip molding is not high to the medial surface quality requirement of drag cup in other embodiments of the invention, either Two drag cup structures are different, without driving mandrel 10 to move, and need to only deviate from mandrel.
It is forcing press first during die sinking in the present embodiment to prevent drip molding from sticking on the outer peripheral face of punch-pin 9 Punch-pin 9 and the annular backhaul simultaneously of punch-pin 5 are driven, until annular punch-pin 5 resets, then forcing press drives punch-pin 9 to continue backhaul, from And the cup type part of liftout plate forging and molding.
A kind of two-way raised metalwork plate forging and molding mould of bottom belt of the present invention, as depicted in figs. 1 and 2, the cup Type metalwork plate forging and molding mould includes upper die and lower die part, and upper mould includes being used for driving with forcing press upper outer cylinder body The upper bolster 7 of mechanism output end connection, the lower section of upper bolster 7 is detachably connected backing plate 11 by upper bolt 8, and the lower section of backing plate 11 is connected There is annular punch retainer 6, annular punch retainer 6 offers along the central through hole of the annular axial direction of punch-pin 5 and installs annular punch-pin 5, the punch-pin 9 being slidably matched therewith is provided with annular punch-pin 5, and punch-pin 9 offers central through hole vertically, the He of upper bolster 7 Backing plate 11 offers the central communication hole installed with punch-pin 9, punch-pin 9 and inner side cylinder body drive mechanism output end above forcing press Drive connection;Lower mould includes on the die shoe 1 of bottom, die shoe 1 being detachably provided with cavity plate 4, the bottom of cavity plate 4 by lower bolt 2 Portion is offered along the central through hole of the axial direction of sleeve pipe 3 and installs fixed sleeving 3, and the upper end of sleeve pipe 3, which is less than in the bottom surface of cavity plate 4, sleeve pipe 3, to be set There is the mandrel 10 being slidably matched therewith, mandrel 10 is connected with cylinder body output shaft below forcing press.
In metalwork plate forging and molding mould, punch-pin 9 has central through hole vertically, physical dimension and the gold of central through hole The category hollow raised lateral surface physical dimension of part bottom up is consistent;The center hole structure size of cavity plate 4 respectively with metalwork bottom to Under hollow raised lateral surface be consistent with the lateral surface physical dimension of sleeve pipe 3, the physical dimension of mandrel 10 and the two-way sky in metalwork bottom Cardiac prominence rise lateral surface physical dimension be consistent, under matched moulds state, mandrel 10 should run through two hollow projections, and beyond it is formed thereby most Big height.
It should be noted that the size in the process of the above embodiment of the present invention drip molding and after machining is simultaneously Above-mentioned size is not limited to, above-mentioned a series of size is only a simple reference, associated or identical statement side Formula is each fallen within protection scope of the present invention.
Specific case is applied in the present invention to be set forth the principle and embodiment of the present invention, above example Illustrate the method and its core concept for being only intended to help to understand the present invention;Simultaneously for those of ordinary skill in the art, according to According to the thought of the present invention, it will change in specific embodiments and applications.In summary, this specification content It should not be construed as limiting the invention.

Claims (9)

1. a kind of two-way raised metalwork plate forging forming method of bottom belt, it is characterised in that:Comprise the following steps:
1) sheet material is pre-formed into the slab of bottom of which has holes, the slab is put into the plate installed on forcing press using mandrel as guiding In the cavity plate of forging and molding mould, the connected punch-pin of two output ends and annular punch-pin are respectively to cup type base above the forcing press Bottom and end pressurization, and the annular punch-pin load is more than the load of the punch-pin;
2) the forcing press pressurization so that the load of the punch-pin is more than the load that the annular punch-pin is applied, needed for obtaining Design of part size;
3) knockout course, the punch-pin being connected respectively with the interior outer cylinder body above the forcing press and annular punch-pin are kept not It is dynamic, extract mandrel be connected with cylinder body output end below the forcing press out, then the forcing press drive punch-pin with Annular punch-pin backhaul, ejects formation of parts.
2. the two-way raised metalwork plate forging forming method of bottom belt according to claim 1, it is characterised in that:Step 1) in, two output ends drive the punch-pin and annular punch-pin descending above the forcing press, while forcing press control is described The magnitude of load of punch-pin and annular punch-pin, with the cup type base bottom and the after-applied load of ends contact, gathers bottom plate Collection is thickened.
3. the two-way raised metalwork plate forging forming method of bottom belt according to claim 1, it is characterised in that:Step 2) in, the output end that the forcing press connects the punch-pin drives the punch-pin, connects the output end driving of the annular punch-pin The annular punch-pin, the filling of control metal shunt and capacity of returns, until the condition needed for shaping.
4. the two-way raised metalwork plate forging forming method of bottom belt according to claim 1, it is characterised in that:Step 2) after the completion of, keep the punch-pin and annular punch-pin motionless, cylinder body output end drives the mandrel motion below the forcing press.
5. the two-way raised metalwork plate cast moulding method of bottom belt according to claim 1, it is characterised in that:Step 3) in, two output ends drive the punch-pin being attached thereto and the synchronized backhaul of annular punch-pin above forcing press described first, leave After the cavity plate, the punch-pin fast backhaul different with annular punch-pin.
6. the two-way raised metalwork plate forging forming method of bottom belt according to claim 1, it is characterised in that:Step 3) in, the output end of forcing press two described first drives the punch-pin being attached thereto and the synchronized backhaul of annular punch-pin, until described Annular punch-pin resets, and then the forcing press drives the punch-pin to continue backhaul, so as to eject the product of shaping.
7. the two-way raised metalwork plate forging forming method of bottom belt according to claim 1, it is characterised in that:It is described There is above forcing press inner side cylinder body drive mechanism and outside cylinder body drive mechanism, the inner side cylinder body drive mechanism with it is described outer Side cylinder body drive mechanism is connected with two output ends above the forcing press respectively;The inner side cylinder body drive mechanism passes through defeated Go out end to be connected with the punch-pin, the outside cylinder body drive mechanism is connected by output end with the annular punch-pin; There is cylinder body drive mechanism, the cylinder body drive mechanism is connected with the mandrel below the forcing press.
8. a kind of two-way raised metalwork plate forging and molding mould of bottom belt, for realizing one described in claim 1-7 Plant the two-way raised metalwork plate forging forming method of bottom belt, it is characterised in that:Including upper die and lower die, the upper mould includes Punch-pin and annular punch-pin, the punch-pin offer central through hole vertically, and the punch-pin outer sheath is provided with the annular punch-pin, The punch-pin is used to be connected with the inner side cylinder body drive mechanism of forcing press, and the annular punch-pin is used for the outside cylinder with the pressure Body drive mechanism is connected;The lower mould includes cavity plate, sleeve pipe and mandrel, and the center of the cavity plate is provided with perforate, the perforate Inner side is provided with described sleeve pipe, and the upper surface of described sleeve pipe is less than in the perforate top, described sleeve pipe provided with the mandrel, institute Mandrel is stated with the cylinder body drive mechanism of the forcing press to be connected.
9. the two-way raised metalwork plate forging and molding mould of bottom belt according to claim 8, it is characterised in that:It is described Punch-pin is oriented to annular punch-pin and is slidably matched, and the perforate is used with described sleeve pipe and is slidably matched, described sleeve pipe and the mandrel Guiding is slidably matched.
CN201710407939.3A 2017-06-02 2017-06-02 A kind of the metalwork plate forging forming method and mold of the two-way protrusion of bottom belt Active CN106984751B (en)

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CN109079074A (en) * 2018-08-16 2018-12-25 湘潭大学 A kind of plate forging forming method and its mold that metalwork bottom thickens
CN110293148A (en) * 2019-06-21 2019-10-01 上海正玺新材料科技有限公司 A kind of magnesium alloy plate punching press forging composite forming method
CN110293148B (en) * 2019-06-21 2020-09-29 上海正玺新材料科技有限公司 Magnesium alloy plate stamping and forging composite forming method

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