CN107138602B - A kind of floating type rigid discharging structure - Google Patents
A kind of floating type rigid discharging structure Download PDFInfo
- Publication number
- CN107138602B CN107138602B CN201710502463.1A CN201710502463A CN107138602B CN 107138602 B CN107138602 B CN 107138602B CN 201710502463 A CN201710502463 A CN 201710502463A CN 107138602 B CN107138602 B CN 107138602B
- Authority
- CN
- China
- Prior art keywords
- stripper
- pressing plate
- connecting hole
- punch
- bolt
- 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
- 238000007599 discharging Methods 0.000 title claims abstract description 41
- 238000007667 floating Methods 0.000 title claims abstract description 25
- 230000000694 effects Effects 0.000 claims abstract description 16
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000004080 punching Methods 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000010008 shearing 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
- B21D45/006—Stripping-off devices
-
- 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
- B21D45/06—Stripping-off devices
- B21D45/08—Stripping-off devices interrelated with motion of tool
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a kind of floating type rigid discharging structures, including punch-pin, punch retainer, cavity plate, die block, upper die holder and lower die holder, stripper is equipped with above die block, stripper connects bolt under the effect of stripper return spring for stripper and die block floating connection.Pressing plate is equipped with above stripper, pressing plate connection bolt is connect after sequentially passing through pressing plate, punch retainer, convex mould pad from the bottom up with upper die holder；Compressed pressing plate thrust spring is arranged on pressing plate connection bolt between pressing plate and punch retainer.The present invention realizes rigid discharging using the spacing effect of the elastic force and bolt of spring, ingenious to avoid the disadvantage of existing rigid discharging structure and elastic discharging structure respectively, while the advantages of received the two.
Description
Technical field
The present invention relates to blanking dies, and in particular to a kind of floating type rigid discharging structure on blanking die belongs to stamping technology.
Background technique
Stamping die is to equip a kind of special process that material is processed into part in Cold Press Working.It completes primary
Punching press just has a forming part and is stamped out.After the die sinking of mold uplink, discharging is needed to make workpiece and punch-pin separation
Workpiece leaves.Existing mold discharging structure is mainly rigid discharging and elastic two kinds of discharging structure.Stripper is fixed, is
Rigid discharging.Stripper is pushed by elastic element, for elastic discharging.Wherein elastic discharging structure discharging strength is small, there is flanging work
With rigid discharging structure discharging strength is big, but acts on without flanging.Elastic discharging can effectively solve problem on deformation, but elastic element
It is vulnerable, discharging is unreliable；Rigid discharging, although discharging is reliable, deformation is serious.From the above, it can be seen that rigid discharging and bullet
Property discharging structure respectively have advantage and disadvantage, that is, keep all haveing the shortcomings that while respective advantage it is different, the shortcomings that both how avoiding
It and is those skilled in the art always in the direction of exploration using the two advantage.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problem to be solved in the present invention is to provide a kind of floating type rigidity
Discharging structure, this discharging structure is ingenious to avoid the disadvantage of existing rigid discharging structure and elastic discharging structure respectively, and simultaneously
The advantages of having received the two.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of floating type rigid discharging structure, including punch-pin, punch retainer, cavity plate, die block, upper die holder and under
Die holder, the punch-pin are mounted on punch retainer, and punch retainer is connect by convex mould pad with upper die holder, and cavity plate is mounted on
On die block, die block is connect with lower die holder.
It is equipped with stripper above die block, stripper connecting hole up and down, discharging are equipped on stripper
Plate connecting hole is the concentric holes of two sections different-diameter to constitute stepped hole, and wherein upper diameter is greater than lower section diameter, recessed
Mould fixed plate upper surface is equipped with the counterbore with stripper connecting hole face, and stripper connects bolt and passes through stripper connecting hole and sink
Stripper is connected with die block behind hole；Stripper connection bolt head is located in stripper connecting hole upper section and stripper
Connection bolt head lateral dimension is greater than stripper connecting hole lower section diameter to prevent stripper from taking off from stripper connection bolt
It falls；In counterbore be equipped with stripper return spring, stripper return spring cover stripper connection bolt on and be compressed in it is heavy
Hole bottom surface and stripper lower surface, the depth of stripper connecting hole upper section are greater than the thickness of stripper connection bolt head, so that
Stripper and die block constitute floating connection under the effect of stripper return spring, and stripper floats distance as stripper company
The depth and stripper that connect hole upper section connect the difference of bolt head thickness.
It is equipped with pressing plate above stripper, pressing plate connecting hole up and down is equipped on pressing plate, pressing plate connecting hole is upper
The concentric holes of lower two sections of different-diameters are to constitute stepped hole, and wherein upper diameter is less than lower section diameter, and pressing plate connects bolt under
Up sequentially pass through after the pressing plate connecting hole on pressing plate, the connecting hole on punch retainer, the connecting hole on convex mould pad with it is upper
Die holder connection；Compressed pressing plate thrust spring is arranged on pressing plate connection bolt between pressing plate and punch retainer；Pressure
Plate, which connects bolt lower end, has limit head, and spacing head portion is located in pressing plate connecting hole lower section and limit head lateral dimension is greater than
Pressing plate connecting hole upper diameter is to prevent pressing plate from falling off from pressing plate connection bolt；Punch-pin mistake is equipped on pressing plate and stripper
Hole, punch-pin pass through in the operating condition the via hole on pressing plate and stripper and with cavity plate face；The depth of pressing plate connecting hole lower section
Greater than the thickness on pressing plate connection bolt limit head, so that pressing plate and upper die holder constitute the company of floating under the effect of pressing plate thrust spring
It connecing, the punch-pin via hole on pressing plate is up big and down small stepped hole, and punch-pin has ladder shaft part corresponding with the stepped hole on pressing plate,
Pressing plate is floated downward position with respect to upper die holder maximum and is abutted for pressing plate connection bolt limit head with pressing plate connecting hole step surface, pressing plate phase
The step surface that upper die holder maximum floating position is punch-pin ladder shaft part is abutted with the punch-pin via hole step surface on pressing plate.
During punching press terminates upper die holder uplink, punch-pin moves upwardly together this structure with upper die holder, gradually with plate
Separation, during this, pressing plate in certain distance under the effect of pressing plate thrust spring, to floating type positive stripper one to
Under pressure, guarantee that the effect by stripper pressure, plate are unlikely to deform plate always in discharge process.Upper die holder continues
When being up to certain distance, pressing plate connects bolt head and stepped hole step face contact, and band dynamic pressure plate moves upwardly together, discharging
It after plate does not have platen pressure, is moved up under the action of stripper return spring elastic force, at this point, stripper and plate start point
From, until stripper reaches maximum floating distance, thus stripper no longer uplink completes entire discharge process, realize punch-pin and
The separation of plate and the separation of stripper and plate, convenient for completing pickup work.It can be seen that punch-pin from the above-mentioned course of work
During separating with plate, plate is under pressure effect always, is unlikely to deform, obtained product quality is higher.
Compared with prior art, the invention has the following beneficial effects:
1, the present invention is first pushed by elastic element using floating type rigid discharging structure, after due to bolt restriction effect, unload
Flitch no longer moves, therefore combines the advantage of elastic discharging structure and rigid discharging structure respectively, mistake of the stripper in discharging
Cheng Zhong while guaranteeing has sufficiently large stripping force, and has the function of flanging, to improve the quality of product.
2, when punch-pin of the present invention works in the punch-pin via hole at pressing plate and stripper center, punch-pin was both provided and had been run up and down
Guiding, it is often more important that partial action power suffered by punch-pin can pass to pressing plate and stripper, mitigate blanking process pair
Punch-pin bring impact force, shearing force and bending force have good protective effect to punch-pin, and punch-pin can be improved uses the longevity
Life.
3, the configuration of the present invention is simple, it is at low cost, it is particularly suitable for the mold of punching class, is convenient for pickup, product can be improved
Quality.
4, pressing plate connection bolt of the present invention connects bolt with stripper other than having the function of connecting pressing plate and stripper,
Also there is guide function, run pressing plate and stripper up and down more stable smooth.
Detailed description of the invention
Fig. 1-schematic structural view of the invention.
Wherein: 1- punch-pin；2- punch retainer；3- cavity plate；4- die block；5- upper die holder；6- lower die holder；7- punch-pin
Backing plate；8- stripper；9- stripper connects bolt；10- stripper return spring；11- pressing plate；12- pressing plate connects bolt；13-
Pressing plate thrust spring；14- plate.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawing.
The present invention proposes a kind of floating type rigid discharging knot on the basis of rigid discharging structure and elastic discharging structure
Structure.Specific structure may refer to Fig. 1, can be seen from the chart, the floating type rigid discharging structure of the present invention, including punch-pin 1, punch-pin
Fixed plate 2, cavity plate 3, die block 4, upper die holder 5 and lower die holder 6, the punch-pin 1 are mounted on punch retainer 2, punch-pin
Fixed plate 2 is connect by convex mould pad 7 with upper die holder 5.Cavity plate 3 is mounted on die block 4, die block 4 and lower die
Seat 6 connects.Wherein it is connected by screw between die block 4 and cavity plate 3 and die block 4 and lower die holder 6.
It is equipped with stripper 8 above die block 4, stripper connecting hole up and down is equipped on stripper 8, is unloaded
Flitch connecting hole is the concentric holes of two sections different-diameter to constitute stepped hole, and wherein upper diameter is greater than lower section diameter,
Die block upper surface is equipped with the counterbore with stripper connecting hole face, and stripper connects bolt 9 and passes through stripper connecting hole
Stripper 8 and die block 4 are connected with after counterbore.Stripper connection bolt head be located at stripper connecting hole upper section it is interior and
Stripper connection bolt head lateral dimension is greater than stripper connecting hole lower section diameter to prevent stripper from connecting spiral shell from stripper
It falls off on bolt.Stripper return spring 10 is equipped in counterbore, 10 sets of stripper return spring connect on bolt 9 simultaneously in stripper
It is compressed in counterbore bottom surface and stripper lower surface, the depth of stripper connecting hole upper section is greater than stripper connection bolt head
Thickness, so that stripper and die block constitute floating connection, stripper floating distance under the effect of stripper return spring
The difference of bolt head thickness is connect for the depth and stripper of stripper connecting hole upper section.
It is equipped with pressing plate 11 above stripper 8, pressing plate connecting hole up and down, pressing plate connecting hole are equipped on pressing plate 11
It is the concentric holes of two sections different-diameter to constitute stepped hole, wherein upper diameter is less than lower section diameter, and pressing plate connects bolt
12 sequentially pass through the pressing plate connecting hole on pressing plate, the connecting hole on punch retainer, the connecting hole on convex mould pad from the bottom up
It is connect afterwards with upper die holder 5.Compressed pressing plate is arranged on pressing plate connection bolt 12 between pressing plate 11 and punch retainer 2
Thrust spring 13；Pressing plate, which connects bolt lower end, has limit head, and spacing head portion is located in pressing plate connecting hole lower section and spacing head
Portion's lateral dimension is greater than pressing plate connecting hole upper diameter to prevent pressing plate from falling off from pressing plate connection bolt.In pressing plate 11 and discharging
Plate 8 be equipped with punch-pin via hole, punch-pin 1 in the operating condition pass through pressing plate and stripper on via hole and with 3 face of cavity plate；Pressing plate
The depth of connecting hole lower section is greater than the thickness on pressing plate connection bolt limit head, so that pressing plate and upper die holder are in pressing plate thrust spring
Effect is lower to constitute floating connection, and the punch-pin via hole on pressing plate is up big and down small stepped hole, and punch-pin has and the step on pressing plate
The corresponding ladder shaft part in hole, it is that pressing plate connects bolt limit head and pressing plate connecting hole that pressing plate, which floats downward position with respect to upper die holder maximum,
Step surface abuts, and pressing plate is the punch-pin via hole on the step surface and pressing plate of punch-pin ladder shaft part with respect to upper die holder maximum floating position
Step surface abuts.
Connection stripper connects bolt 9 with the stripper of die block and is multiple groups and is evenly distributed with around cavity plate 3；Connection pressure
Plate connects bolt 12 with the pressing plate of upper die holder and is multiple groups and is evenly distributed with around punch-pin 1.
Stripper connection bolt 9 connected with pressing plate bolt 12 quantity is identical and face one by one in the vertical direction.
Working principle introduction of the present invention:
One, when punching press, 5 downlink of upper die holder, pressing plate thrust spring 13 applies pressure to stripper 8 by pressing plate 11, makes to unload
Flitch 8 plays the role of flanging in punching course, that is, plays pressure plate.During mold downlink, pressing plate thrust
Spring 13 and stripper return spring 10 are in compressive state.
Two, during punching press terminates 5 uplink of upper die holder, punch-pin 1 is moved upwardly together with upper die holder 5, gradually with plate
14 separation, during this, pressing plate 11 under the effect of pressing plate thrust spring 13, gives stripper 8 one downwards in certain distance
Pressure, guarantee that the effect by 8 pressure of stripper always of plate 14, plate 14 are unlikely to deform in discharge process.Upper die holder 5
When continuing to be up to certain distance, pressing plate connects bolt head and stepped hole step face contact, upper die holder 5 with dynamic pressure plate 11 together
It moves upwards, after stripper 8 does not have 11 pressure of pressing plate, is moved up under the action of stripper 10 elastic force of return spring, at this point,
Stripper 8 is initially separated with plate 14, and until stripper 8 reaches maximum floating distance, thus the no longer uplink of stripper 8 is completed
Entire discharge process realizes the separation of punch-pin 1 and plate 14 and separating for stripper 8 and plate 14, convenient for completion pickup work
Make.It can be seen that during punch-pin 1 separates with plate 14 from the above-mentioned course of work, the pressure by stripper 8 always of plate 14
Power effect, is unlikely to deform, obtained product quality is higher.
The floating type rigid discharging structure of the present invention is to realize that rigidity is unloaded using the spacing effect of the elastic force and bolt of spring
Material.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the scope of the claims of invention.
Claims (1)
1. a kind of floating type rigid discharging structure, including punch-pin, punch retainer, cavity plate, die block, upper die holder and lower die
Seat, the punch-pin are mounted on punch retainer, and punch retainer is connect by convex mould pad with upper die holder, and cavity plate is mounted on recessed
In mould fixed plate, die block is connect with lower die holder；It is characterized by:
It is equipped with stripper above die block, stripper connecting hole up and down is equipped on stripper, stripper connects
Connecing hole is the concentric holes of two sections different-diameter to constitute stepped hole, and wherein upper diameter is greater than lower section diameter, solid in cavity plate
Fixed board upper surface is equipped with the counterbore with stripper connecting hole face, and stripper connects bolt after stripper connecting hole and counterbore
Stripper is connected with die block；Stripper connection bolt head is located in stripper connecting hole upper section and stripper connects
Bolt head lateral dimension is greater than stripper connecting hole lower section diameter to prevent stripper from falling off from stripper connection bolt；?
Stripper return spring is equipped in counterbore, stripper return spring covers on stripper connection bolt and is compressed in counterbore bottom surface
With stripper lower surface, the depth of stripper connecting hole upper section is greater than the thickness of stripper connection bolt head, so that stripper
Floating connection is constituted under the effect of stripper return spring with die block, stripper floats distance as on stripper connecting hole
The depth and stripper of section connect the difference of bolt head thickness；
It is equipped with pressing plate above stripper, pressing plate connecting hole up and down is equipped on pressing plate, pressing plate connecting hole is upper and lower two
The concentric holes of section different-diameter are to constitute stepped hole, and wherein upper diameter is less than lower section diameter, and pressing plate connects bolt from the bottom up
Sequentially pass through after the pressing plate connecting hole on pressing plate, the connecting hole on punch retainer, the connecting hole on convex mould pad with upper die holder
Connection；Compressed pressing plate thrust spring is arranged on pressing plate connection bolt between pressing plate and punch retainer；Pressing plate connects
Connecting bolt lower end has limit head, and spacing head portion is located in pressing plate connecting hole lower section and limit head lateral dimension is greater than pressing plate
Connecting hole upper diameter is to prevent pressing plate from falling off from pressing plate connection bolt；Punch-pin via hole is equipped on pressing plate and stripper, it is convex
Mould pass through in the operating condition the via hole on pressing plate and stripper and with cavity plate face；The depth of pressing plate connecting hole lower section is greater than pressure
Plate connects the thickness on bolt limit head, so that pressing plate and upper die holder constitute floating connection under the effect of pressing plate thrust spring, presses
Punch-pin via hole on plate is up big and down small stepped hole, and punch-pin has ladder shaft part corresponding with the stepped hole on pressing plate, pressing plate
It is that pressing plate connects bolt and limits head and abuts with pressing plate connecting hole step surface that opposite upper die holder maximum, which floats downward position, pressing plate relatively on
Die holder maximum floating position is that the step surface of punch-pin ladder shaft part is abutted with the punch-pin via hole step surface on pressing plate；
Connection stripper connects bolt with the stripper of die block and is multiple groups and is evenly distributed with around cavity plate；Connect pressing plate and upper
The pressing plate connection bolt of die holder is multiple groups and is evenly distributed with around punch-pin；
Stripper connection bolt connected with pressing plate bolt quantity is identical and face one by one in the vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502463.1A CN107138602B (en) | 2017-06-27 | 2017-06-27 | A kind of floating type rigid discharging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710502463.1A CN107138602B (en) | 2017-06-27 | 2017-06-27 | A kind of floating type rigid discharging structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107138602A CN107138602A (en) | 2017-09-08 |
| CN107138602B true CN107138602B (en) | 2019-09-27 |
Family
ID=59784571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710502463.1A Expired - Fee Related CN107138602B (en) | 2017-06-27 | 2017-06-27 | A kind of floating type rigid discharging structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107138602B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413930B (en) * | 2017-06-26 | 2023-08-01 | 重庆理工大学 | Maintenance-free small hole blanking die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07314057A (en) * | 1994-05-25 | 1995-12-05 | Apic Yamada Kk | Press die structure |
| CN2858104Y (en) * | 2005-11-18 | 2007-01-17 | 比亚迪股份有限公司 | Material pressing board mechanism and side-cut die including the same |
| CN104438843A (en) * | 2014-11-24 | 2015-03-25 | 常州市威玛泰精密工具有限公司 | Blanking and bending compound die |
| CN204396593U (en) * | 2014-12-13 | 2015-06-17 | 重庆天业模具冲压制造有限公司 | Elasticity discharging blanking die |
| CN204545098U (en) * | 2015-04-13 | 2015-08-12 | 无锡国盛精密模具有限公司 | Synchronous binder discharging blanking die |
| CN206838870U (en) * | 2017-06-27 | 2018-01-05 | 重庆理工大学 | Promoted and the spacing double-acting blanking die shedding mechanism of bolt based on flexible member |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6755104B2 (en) * | 2002-07-01 | 2004-06-29 | David S. Grant | Stripper plate supporting assembly |
-
2017
- 2017-06-27 CN CN201710502463.1A patent/CN107138602B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07314057A (en) * | 1994-05-25 | 1995-12-05 | Apic Yamada Kk | Press die structure |
| CN2858104Y (en) * | 2005-11-18 | 2007-01-17 | 比亚迪股份有限公司 | Material pressing board mechanism and side-cut die including the same |
| CN104438843A (en) * | 2014-11-24 | 2015-03-25 | 常州市威玛泰精密工具有限公司 | Blanking and bending compound die |
| CN204396593U (en) * | 2014-12-13 | 2015-06-17 | 重庆天业模具冲压制造有限公司 | Elasticity discharging blanking die |
| CN204545098U (en) * | 2015-04-13 | 2015-08-12 | 无锡国盛精密模具有限公司 | Synchronous binder discharging blanking die |
| CN206838870U (en) * | 2017-06-27 | 2018-01-05 | 重庆理工大学 | Promoted and the spacing double-acting blanking die shedding mechanism of bolt based on flexible member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107138602A (en) | 2017-09-08 |
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Granted publication date: 20190927 |