CN108372238B - A kind of molding die - Google Patents
A kind of molding die Download PDFInfo
- Publication number
- CN108372238B CN108372238B CN201810168691.4A CN201810168691A CN108372238B CN 108372238 B CN108372238 B CN 108372238B CN 201810168691 A CN201810168691 A CN 201810168691A CN 108372238 B CN108372238 B CN 108372238B
- Authority
- CN
- China
- Prior art keywords
- cavity plate
- punch
- pin
- overturning
- die holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000465 moulding Methods 0.000 title claims abstract description 32
- 230000009471 action Effects 0.000 claims abstract description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
Abstract
The invention discloses a kind of molding dies, including upper die holder, do the movement close to or far from lower die holder along guide post under the action of pushing mechanism；Two cavity plate fixing pieces, are fixed on the lower die holder with a fixed spacing；Cavity plate, both ends are slidably connected with corresponding cavity plate fixing piece respectively；The both ends of the cavity plate pass through connector and are each connected to corresponding overturning cavity plate；Punch-pin, with the mobile driving cavity plate of the upper die holder along the cavity plate fixing piece slide downward；Two driving wedges, respectively along the oblique sliding in side of corresponding punch-pin.Compared with prior art, the present invention realizes the adjustable of punch-pin width by driving wedge and sliding in opposition for punch-pin, cooperation overturning cavity plate can be realized the processing problems that a step realizes stamping parts negative angle, a secondary mold is only needed to can be achieved with processing, compared to the use that traditional technique reduces mold, reduce costs.
Description
Technical field
The present invention relates to molding dies used when a kind of a kind of fixture, especially processing straight-arm pin hole.
Background technique
Currently, being required in auto parts and components according to product design, there is numerous parts flange inevitably to there is negative angle,
Negative angle problem is to make a difficult point of mold, carrys out problem to process bands；There is the part of lateral flange in flange if there is negative
Angle, technique are more difficult to realize.Parts flanged-edge is primarily due to there are negative angle, mold is easy to appear part and is stuck in the material returned
The case where can not being taken out on mold.The prior art, for requiring the Bending Processing of negative angle, generally divides three in punch process
A station is completed.Need to increase a secondary sizing die using aforesaid way；Increase mold and not only causes the raising of production cost, and
And more production stages reduce production efficiency.
Summary of the invention
The object of the present invention is to provide a kind of molding dies, and to solve deficiency in the prior art, it can be in a cover die
Stamping parts negative angle flange is realized on tool, has saved production cost.
The present invention provides a kind of molding dies, including upper die holder, lean under the action of pushing mechanism along guide post
Close or remote from the movement of lower die holder；
Two cavity plate fixing pieces, are fixed on the lower die holder with a fixed spacing；
Cavity plate, both ends are slidably connected with corresponding cavity plate fixing piece respectively；The both ends of the cavity plate pass through
Connector is each connected to corresponding overturning cavity plate, and the overturning cavity plate is placed on overturning female mold support part；The cavity plate to
It using corresponding overturning female mold support part is fulcrum to the cavity plate that lower slider, which drives the overturning cavity plate at both ends,
Center fold；
Punch retainer is fixed on the upper die holder；The bottom end of the punch retainer is fixedly installed with punch-pin, described
Punch-pin is with the mobile driving cavity plate of the upper die holder along the cavity plate fixing piece slide downward；
Two driving wedges, respectively along the oblique sliding in side of corresponding punch-pin；Described two driving wedges
Gather or deviate to the center of the punch-pin under the action of punch-pin.
Molding die as described above, wherein preferably, the punch-pin has isosceles trapezoidal structure, the punch-pin
Two sides are provided with dovetail groove, and the dovetail being slidably matched with the dovetail groove is provided in the driving wedge.
Molding die as described above, wherein preferably, the limitation dovetail is additionally provided in the driving wedge
The positioning plate of sliding stroke is provided with the locating slot with positioning plate cooperation on the punch-pin.
Molding die as described above, wherein preferably, be fixed with and be used on the boss that the punch retainer stretches out
The binder spring for pushing the driving wedge to gather toward the centre of the punch-pin.
Molding die as described above, wherein preferably, further include retracting spring, the bottom end of the cavity plate with it is described
The first end of retracting spring is fixedly connected, and the second end of the retracting spring is fixed on the lower die holder.
Molding die as described above, wherein preferably, the top of the connector is inherently cut with scissors with the overturning cavity plate
First drive shaft of connection, the first drive shaft sliding is on the cavity plate fixing piece；The lower part of the connector is fixed with
The second drive shaft being hinged with the cavity plate.
Molding die as described above, wherein preferably, the cavity plate fixing piece includes the first die block and the
Two die blocks, first die block and the second die block are arranged with a fixed spacing, and first cavity plate is solid
The slide opening for first drive shaft sliding is provided on fixed board and second die block.
Molding die as described above, wherein preferably, after being provided on the punch retainer for being affiliated to demoulding
The suspension groove of finished product.
Molding die as described above, wherein preferably, the suspension groove is symmetricly set on the punch retainer
Two sides.
Compared with prior art, the present invention realizes the adjustable of punch-pin width by driving wedge and sliding in opposition for punch-pin
Whole, cooperation overturning cavity plate can be realized the processing problems that a step realizes stamping parts negative angle, it is only necessary to which a secondary mold can be achieved with adding
Work is reduced costs compared to the use that traditional technique reduces mold.
In addition, product can be spontaneously decoupled recessed by the driving wedge in the mould structure to intermediary movements after the completion of punching press
Mould can realize liftout function by self structure, without increasing other Lifting Devices, convenient for pickup operation and meanwhile reduce mold at
This.
Detailed description of the invention
Fig. 1 is a kind of the first axonometric drawing of molding die provided in an embodiment of the present invention；
Fig. 2 is a kind of the second axonometric drawing of molding die provided in an embodiment of the present invention；
Fig. 3 is a kind of axonometric drawing of molding die convex mould provided in an embodiment of the present invention；
Fig. 4 is the axonometric drawing of driving wedge in a kind of molding die provided in an embodiment of the present invention；
Fig. 5 is the mounting structure schematic diagram that cavity plate and cavity plate are overturn in a kind of molding die provided in an embodiment of the present invention；
Fig. 6 is a kind of molding die course of work original state schematic diagram provided in an embodiment of the present invention；
Fig. 7 is that driving wedge and punch-pin stop sliding relatively in a kind of molding die course of work provided in an embodiment of the present invention
State after dynamic
Fig. 8 is to push cavity plate in a kind of molding die course of work provided in an embodiment of the present invention to make after overturning cavity plate fold
State.
Description of symbols: 11- punch retainer, 110- guide post, 115- suspension groove, 12- punch-pin, 121- dovetail groove,
122- locating slot, 13- driving wedge, 131- dovetail, 132- positioning plate, 14- binder spring, 30- upper die holder, 40- lower die holder,
22- cavity plate, 23- retracting spring, 24- die block, 242- overturn female mold support part, and 25- overturns cavity plate, and 261- first drives
Axis, the second drive shaft of 262-, the first die block of 240-, the second die block of 241-, 263- connector, 50- product.
Specific embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, for explaining only the invention, and cannot be construed to
Limitation of the present invention.
The embodiment of the present invention: as illustrated in fig. 1 and 2, a kind of molding die, including 30, two cavity plates of upper die holder are provided
Fixing piece 24, cavity plate 22, punch retainer 11, punch-pin 12 and driving wedge 13, effect of the upper die holder 30 in pushing mechanism
Under movement close to or far from lower die holder 40 is done along guide post 110；Described two cavity plate fixing pieces 24 are fixed with a fixed spacing
On the lower die holder 40；22 both ends of cavity plate are slidably connected with corresponding cavity plate fixing piece 24 respectively；Cavity plate
22 can be realized and move up and down.The both ends of the cavity plate 22 pass through connector 263 and are each connected to corresponding overturning cavity plate 25,
The overturning cavity plate 25 is placed on overturning female mold support part 242；Overturning female mold support part 242 can lift overturning cavity plate 25,
Overturning female mold support part 242 simultaneously can be used as the fulcrum overturn in 25 switching process of cavity plate.The 22 slide downward band of cavity plate
The overturning cavity plate 25 at dynamic both ends is fulcrum into the cavity plate 2 with corresponding overturning female mold support part 242
The fold of heart position；Product 50 can be placed on cavity plate 22 and overturning cavity plate 25, drive when cavity plate 2 moves down
The overturning cavity plate 25 at both ends turns down, to carry out bending to product 50.The punch retainer 11 is fixed on the upper die holder 30
On；The punch-pin 12 is fixed on the bottom end of the punch retainer 11, the punch-pin 12 with the upper die holder 30 mobile driving
The cavity plate 22 is along 24 slide downward of cavity plate fixing piece；There are two the driving wedge 13 is arranged altogether, respectively along respectively right
The oblique sliding in the side for the punch-pin 12 answered；Described two driving wedges 13 are under the action of punch-pin 12 to the punch-pin 12
Center is gathered or is deviated from.The variable of 12 width of punch-pin is realized by the oblique sliding of driving wedge 13 and punch-pin 12.
Punch-pin 12 is fixed on punch retainer 11, moving down and move with upper die holder 30, and driving wedge 13 is sliding
It moves on punch-pin 12, as shown in fig. 6, initial conditions driving wedge 13 is gathered in opposite directions under the effect of gravity in punch-pin 12
Middle position.Punch-pin 12 drives the driving wedge 13 to move down, when driving wedge 13 is moved to the product 50 on cavity plate 22
When, since barrier effect driving wedge 13 and the punch-pin 12 of cavity plate 22 produce relative sliding, driving wedge 13 is along punch-pin
12 oblique upper direction sliding, the opposite separate punch-pin 12 of two driving wedges 13 are consolidated until driving wedge 13 slides into punch-pin
On two boss that fixed board 11 stretches out (Fig. 7), the driving wedge under the barrier effect for two boss that punch retainer 11 stretches out
13 stop sliding obliquely, and the width of punch-pin 12 is widened by driving wedge 13 at this time, and the punch-pin actually pushed is the width of punch-pin 12
The width of degree and driving wedge 13, since the increase of width increases the abducent width of product 50 contacted to shape
At negative angle, as shown in figure 8, the driving wedge 13 and punch-pin 12 are mobile downwardly together to continue to push cavity plate 22, cavity plate 22 along
24 slide downward of cavity plate fixing piece, while the slide downward of cavity plate 22 drives the overturning cavity plate 25 at both ends to flip up, and is turning down
Overturning cavity plate 25 is that supporting point is sent out centered on cavity plate 22 and overturning 25 tie point of cavity plate to overturn female mold support part 242 in the process
Raw fold, the overturning fold of cavity plate 25 bend product 50, overturn the fold cooperation slided opposite with driving wedge 13 of cavity plate 25
Product is tightly fitted between driving wedge 13 and overturning cavity plate 25.
Punch-pin 12 moves up when backhaul, and driving wedge 13 generates phase with punch-pin 12 under the effect of gravity
To sliding, two driving wedges 13 are gathered to the center of punch-pin 12, to realize that the separation with product 50 realizes demoulding.
Specifically, 12 two sides of punch-pin are provided with swallow as shown in figure 3, the punch-pin 12 has isosceles trapezoidal structure
Stern notch 121 is provided with the dovetail 131 being slidably matched with the dovetail groove 121 in the driving wedge 13.Pass through dovetail groove
121 realize the oblique sliding of driving wedge 13 and punch-pin 12 with the cooperation of dovetail 131.As shown in figure 4, the driving wedge 13
On be additionally provided with the positioning plate 132 for limiting 131 sliding stroke of dovetail, be provided with and the positioning plate on the punch-pin 12
The locating slot 122 of 132 cooperations.The row of 13 slide downward of driving wedge is limited by the cooperation of locating slot 122 and positioning plate 132
Journey, when the side of positioning plate 132 slides into the slot bottom of locating slot 122, at this time since the blocking of positioning plate 132 avoids
The further downslide of driving wedge 13.
Further, it is fixed on the boss that the punch retainer 11 stretches out for pushing the driving wedge 13 toward institute
State the binder spring 14 that the centre of punch-pin 12 is gathered.Binder spring 14 is pushed when punch-pin 12 moves down, and passes through binder
Spring 14 pushes driving wedge 13, while binder spring 14 is shunk, and when backhaul, binder spring 14 is sprung back, binder spring
14 screen resilience drives the component of the generation slide downward of driving wedge 13.
Further, the bottom end of the cavity plate 22 is fixedly connected with the first end of retracting spring 23, the retracting spring 23
Second end be fixed on the lower die holder 30.The automatic rebounding that can be realized cavity plate 22 by the setting of retracting spring 23, from
And cavity plate 22 is made to be restored to original position.Instantly retracting spring 23 is compressed when pressing mould 22, when removing the pushing on cavity plate 22
The screen resilience of retracting spring 23 drives cavity plate 22 to move up when power.
Specifically, as shown in figure 5, the top of the connector 263 inherently with it is described overturning cavity plate 25 be hinged first
Drive shaft 261, the sliding of the first drive shaft 261 is on the cavity plate fixing piece 24；The lower part of the connector 263 is fixed with
The second drive shaft 262 being hinged with the cavity plate 22.The cavity plate fixing piece 24 includes the first die block 240 and second
Die block 241, first die block 240 and the second die block 241 are arranged with a fixed spacing, and described first
The slide opening for first drive shaft 261 sliding is provided on die block 240 and second die block 241.
Further, in order to facilitate processing after product 50 taking-up, be provided with and be used on the punch retainer 11
It is affiliated to the suspension groove 115 of finished product after demoulding, and the suspension groove 115 is symmetricly set on the two sides of the punch retainer 11.When
Product 50 is hung on the suspension groove 115 of punch retainer after processing is completed to facilitate taking-up.
Structure, feature and effect of the invention, the above institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (9)
1. a kind of molding die characterized by comprising
Upper die holder (30) does under the action of pushing mechanism along guide post (110) movement close to or far from lower die holder (40)；
Two cavity plate fixing pieces (24), are fixed on the lower die holder (40) with a fixed spacing；
Cavity plate (22), both ends are slidably connected with corresponding cavity plate fixing piece (24) respectively；The two of the cavity plate (22)
End is each connected to corresponding overturning cavity plate (25) by connector (263), and it is recessed that the overturning cavity plate (25) is placed on overturning
On mould supporting element (242), the overturning female mold support part (242) is fixed on the lower die holder (40)；The cavity plate (2) is downward
It with corresponding overturning female mold support part (242) is fulcrum to described that sliding, which drives the overturning cavity plate (25) at both ends,
The center of cavity plate (2) turns down；
Punch retainer (11) is fixed on the upper die holder (30)；The bottom end of the punch retainer (11) is fixedly installed with
Punch-pin (12), the punch-pin (12) is with the mobile driving cavity plate (22) of the upper die holder (30) along the cavity plate fixing piece
(24) slide downward；
Two driving wedges (13), respectively along the oblique sliding in side of corresponding punch-pin (12)；Described two drivings
Inclined wedge (13) is gathered or is deviated to the center of the punch-pin (12) under the action of punch-pin (12)；
Punch-pin (12) drives the driving wedge (13) to move down, the opposite separate punch-pin (12) of two driving wedges (13).
2. molding die according to claim 1, it is characterised in that: the punch-pin (12) has isosceles trapezoidal structure,
Punch-pin (12) two sides are provided with dovetail groove (121), are provided on the driving wedge (13) sliding with the dovetail groove (121)
The dovetail (131) of dynamic cooperation.
3. molding die according to claim 2, it is characterised in that: be additionally provided with limitation institute on the driving wedge (13)
The positioning plate (132) of dovetail (131) sliding stroke is stated, is provided on the punch-pin (12) and cooperates with the positioning plate (132)
Locating slot (122).
4. molding die according to claim 1, it is characterised in that: solid on the boss that the punch retainer (11) is stretched out
Surely there is the binder spring (14) for pushing the driving wedge (13) to gather toward the centre of the punch-pin (12).
5. molding die according to claim 1, it is characterised in that: it further include retracting spring (23), the cavity plate (22)
Bottom end be fixedly connected with the first end of the retracting spring (23), the second end of the retracting spring (23) be fixed on it is described under
On die holder (30).
6. molding die according to claim 1, it is characterised in that: the top of the connector (263) inherently with it is described
The first drive shaft (261) that overturning cavity plate (25) is hinged, the first drive shaft (261) sliding is in the cavity plate fixing piece
(24) on；The lower part of the connector (263) is fixed with the second drive shaft (262) being hinged with the cavity plate (22).
7. molding die according to claim 6, it is characterised in that: the cavity plate fixing piece (24) is solid including the first cavity plate
Fixed board (240) and the second die block (241), first die block (240) and the second die block (241) with
The arrangement of one fixed spacing is provided on first die block (240) and second die block (241) for described the
The slide opening of one drive shaft (261) sliding.
8. molding die according to claim 1, it is characterised in that: be provided on the punch retainer (11) for hanging
The suspension groove (115) of finished product after demoulding.
9. molding die according to claim 8, it is characterised in that: the suspension groove (115) is symmetricly set on described convex
The two sides of mould fixed plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810168691.4A CN108372238B (en) | 2018-02-28 | 2018-02-28 | A kind of molding die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810168691.4A CN108372238B (en) | 2018-02-28 | 2018-02-28 | A kind of molding die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108372238A CN108372238A (en) | 2018-08-07 |
| CN108372238B true CN108372238B (en) | 2019-06-04 |
Family
ID=63018258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810168691.4A Expired - Fee Related CN108372238B (en) | 2018-02-28 | 2018-02-28 | A kind of molding die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108372238B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927457B (en) * | 2018-08-13 | 2019-09-24 | 安徽江淮汽车集团股份有限公司 | Stamping die and more flange Work piece processing methods |
| CN113198914B (en) * | 2021-04-28 | 2022-06-28 | 安徽江淮汽车集团股份有限公司 | Stamping method for part with negative angle and flanging negative angle integrated forming die |
| CN113695435B (en) * | 2021-07-30 | 2023-06-16 | 苏州浪潮智能科技有限公司 | Swinging block structure and bending die |
| KR102654143B1 (en) * | 2022-05-10 | 2024-04-04 | (주)경우정밀 | Hub round bead molding device for damper pulley using press die |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2693370Y (en) * | 2004-04-23 | 2005-04-20 | 河南新飞电器有限公司 | Second compacting invert punching die for refrigerator beam |
| JP2011152558A (en) * | 2010-01-27 | 2011-08-11 | Sankyo Oilless Industry Inc | Guide cam mechanism for preventing interference |
| CN204412920U (en) * | 2014-12-24 | 2015-06-24 | 郑州日产汽车有限公司 | Rotary negative angle forming wedge flanging unloading mechanism |
| CN205926825U (en) * | 2016-08-16 | 2017-02-08 | 常熟市创新模具有限公司 | Negative angle degree plastic mould |
| CN106694660B (en) * | 2016-11-29 | 2019-06-04 | 长沙金鸿顺汽车部件有限公司 | A kind of negative angle flange punching mechanism of part |
-
2018
- 2018-02-28 CN CN201810168691.4A patent/CN108372238B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN108372238A (en) | 2018-08-07 |
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Granted publication date: 20190604 |