CN108714645A - A kind of punching position limiting structure and diel - Google Patents
A kind of punching position limiting structure and diel Download PDFInfo
- Publication number
- CN108714645A CN108714645A CN201811026719.7A CN201811026719A CN108714645A CN 108714645 A CN108714645 A CN 108714645A CN 201811026719 A CN201811026719 A CN 201811026719A CN 108714645 A CN108714645 A CN 108714645A
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- Prior art keywords
- die holder
- punch
- lower template
- position limiting
- upper die
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- 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.)
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Classifications
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- 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
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The present invention provides a kind of punching position-limit mechanism and diels, it is related to Stamping Die Technology field, the punching position limiting structure includes upper die holder, cope plate, lower die holder, lower template, trimming punch and punch block, lower template is fixed on lower die holder, cope plate connect with upper die holder and is oppositely arranged with lower template, punch block is arranged on lower die holder and is arranged with lower template interval, trimming punch is arranged in the bottom of upper die holder, and trimming punch can extend down between punch block and lower template and respectively with lower template and punch block clearance fit.Compared to the prior art, punching position limiting structure of the present invention, can limit trimming punch, it ensure that the punching quality of trimming punch, it is more than specified value to avoid burr height on sheet metal component, while overall structure is simple, avoids additional setting burr removal mechanism.
Description
Technical field
The present invention relates to Stamping Die Technology fields, in particular to a kind of punching position limiting structure and diel.
Background technology
In diel, for the sheet metal component being punched, the burr height of die cut edge has control to require, once die cut edge
Burr height be more than specified value, just have scratch operator hand or other assembly parts risk.
And in the actual production process, mold often will appear the phenomenon that burr height increases after producing a period of time,
Once burr height is more than specified value, it is just difficult to find that solution.
In the prior art, mostly it is by the bonding strength of increase trimming punch, so that the side that trimming punch is kept fixed
Formula improves punching quality, reduces burr height, and such mode effect is poor, and after long-time produces trimming punch company
Connecing intensity can gradually reduce, and then the phenomenon that burr height increases again occurs, can not ensure burr height in a long time
It is maintained within specified value.Burr height also is reduced by the way that deburring structure is additionally arranged in the prior art, but structure is multiple
It is miscellaneous, increase die cost.
It can be seen that designing and manufacturing one kind can effectively solve the problem that burr increases problem, it is more than specified value to avoid burr, together
When it is simple in structure, easy to operate punching position limiting structure is just particularly important.
Invention content
In view of this, the present invention is directed to propose a kind of punching position limiting structure, can effectively solve the problem that burr increases problem, avoids
Burr height is more than specified value, while simple in structure, easy to operate.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of punching position limiting structure, including upper die holder, cope plate, lower die holder, lower template, trimming punch and punch block,
Lower template is fixed on lower die holder, and cope plate connect with upper die holder and is oppositely arranged with lower template, and the setting of punch block exists
It is arranged on lower die holder and with lower template interval, trimming punch is arranged in the bottom of upper die holder, and trimming punch can extend downwardly into
To between punch block and lower template and respectively with lower template and punch block clearance fit.
Further, one side edge of the trimming punch far from lower template has the first chamfering structure.
Further, the chamfer radius of the first chamfering structure is more than or equal to 1mm.
Further, punch block close to lower template one side edge have the second chamfering structure, the second chamfering structure with
First chamfering structure is oppositely arranged.
Further, the chamfer radius of the second chamfering structure is more than or equal to 1mm.
Further, a side surface of the trimming punch far from lower template and punch block close to a side surface of lower template it
Between distance be 0.005mm to 0.015mm.
Further, locking hole is offered on punch block, lock piece is provided in locking hole, and lock piece can with lower die holder
Dismantling connection, so that punch block is fixed on lower die holder.
Further, locking hole is counter sink and there is countersunk head slot section and connection hole, lock piece to be accommodated in countersunk head slot section
It is interior and run through connection hole.
Further, flexible connector is provided between cope plate and upper die holder, and cope plate passes through elasticity with upper die holder
Connector connects, so that can be close to each other or separate between upper die holder and cope plate.
Compared with the existing technology, punching position limiting structure of the present invention, has the advantage that：
Punching position limiting structure of the present invention, is provided with punch block on lower die holder, punch block on lower die holder
The setting of lower template interval, cooperation is in the bottom of upper die holder on trimming punch, and trimming punch can extend down into punch gear
Between block and lower template and respectively with lower template and punch block clearance fit.In blanking process, trimming punch is in punching
Punching lateral force is born, due to clearance fit between punch block and trimming punch, there is outside sidesway in trimming punch stress
When dynamic or deformation trend, punch block can provide trimming punch and be punched anti-lateral force, be limited to trimming punch,
So that trimming punch will not actually occur to move or deform outward, to ensure that trimming punch and lower template it
Between gap will not expand so that punching burr be in stable state.Compared to the prior art, punching of the present invention
Position limiting structure can limit trimming punch, ensure that the punching quality of trimming punch, and it is high to avoid burr on sheet metal component
Degree is more than specified value, while overall structure is simple, avoids additional setting burr removal mechanism.
Punching position limiting structure of the present invention, one side edge of the trimming punch far from lower template have the first chamfering knot
Structure, punch block have the second chamfering structure, the second chamfering structure and the first chamfering structure phase close to the one side edge of lower template
To setting.By the way that the first chamfering structure and the second chamfering structure is arranged so that the punching position limiting structure can be effective when being closed
It prevents from interfering exception between trimming punch and punch block, while also the position of trimming punch can tentatively be corrected, kept away
The edge and punch block for exempting from trimming punch support phenomenon in the direction of travel.
Inflator pump position limiting structure of the present invention, a side surface and punch block of the trimming punch far from lower template are close
The distance between side surface for lower template is 0.005mm to 0.015mm, avoids trimming punch during traveling and punch
Stroke interference phenomenon occurs for block.
Another object of the present invention is to provide a kind of diel, it can effectively solve the problem that burr increases problem, avoid
Burr height is more than specified value, while simple in structure, easy to operate.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
A kind of diel, including driving device and punching position limiting structure, punching position limiting structure includes upper die holder, upper mold
Plate, lower die holder, lower template, trimming punch and punch block, lower template are fixed on lower die holder, and cope plate connects with upper die holder
It connects and is oppositely arranged with lower template, punch block is arranged on lower die holder and is arranged with lower template interval, and trimming punch setting exists
The bottom of upper die holder, and trimming punch can extend down between punch block and lower template and respectively with lower template and punch
Block clearance fit.Driving device is connect with upper die holder, for driving upper die holder to move.
Description of the drawings
The attached drawing for constituting the part of the present invention is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is structural schematic diagram of the punching position limiting structure that provides of first embodiment of the invention under the first visual angle；
The partial enlarged view that Fig. 2 is in Fig. 1 II；
Fig. 3 is the fit structure schematic diagram of punch block and trimming punch in Fig. 1；
Fig. 4 is structural schematic diagram of the punching position limiting structure that provides of first embodiment of the invention under the second visual angle.
Reference sign：
1- is punched position limiting structure；2- upper die holders；3- cope plates；4- lower die holders；5- lower templates；6- trimming punches；7- punches
Block；8- flexible connectors；The first chamfering structures of 9-；The second chamfering structures of 10-；11- lock pieces.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In addition, the orientation of the instructions such as term "upper", "inner", "outside" for being previously mentioned in an embodiment of the present invention or position are closed
System for be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put or position close
System, is merely for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have
Specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
As made in the background art, for the sheet metal component being punched in existing diel, the burr of die cut edge is high
Degree overrun issues once occur just to be difficult to solve.For the generation of burr height overrun issues in trimming blanking process, inventor
Analysis the reason is as follows that：Trimming punch is when being punched sheet metal component, the gap of trimming punch and the punching edge of a knife, it is necessary to which control is wanted in design
Within the scope of asking, but when actual production, because when trimming punch is punched sheet metal component, the shearing force of generation can make trimming rush
Head bears lateral force outward, so that trimming punch moves outward, even more so that trimming punch deforms so that
The gap of trimming punch and the punching edge of a knife becomes to increase and size is uneven, and so the burr height of sheet metal component can increase after punching
Greatly.
For above-mentioned reason, the present invention provides a kind of punching position limiting structures, by increasing a punch block so that cut
It when side punch bears outside lateral force in blanking process, while giving and protecting in negative direction, trimming punch is limited,
So that outer shifting or problem on deformation will not occur for trimming punch, so as to solve in production because knife edge clearance increases or unstable
Caused burr increases problem.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
First embodiment
Referring to Fig. 1, present embodiments provide a kind of punching position limiting structure 1, including upper die holder 2, cope plate 3, lower die holder 4,
Lower template 5, trimming punch 6 and punch block 7, lower template 5 are fixed on lower die holder 4, and cope plate 3 is connect with upper die holder 2
And be oppositely arranged with lower template 5, punch block 7 is arranged on lower die holder 4 and is spaced with lower template 5 and is arranged, and trimming punch 6 is arranged
In the bottom of upper die holder 2, and trimming punch 6 can extend down between punch block 7 and lower template 5 and respectively with lower template
5 and 7 clearance fit of punch block.Specifically, 2 external driving device of upper die holder, and upper die holder 2 is in the driving effect of driving device
Under it is vertically moving, close to or far from lower die holder 4, to drive trimming punch 6 vertically moving, realize to metal plate
The trimming operation of golden part.
In the present embodiment, clamping position is formed between lower template 5 and cope plate 3, for sheet metal component to be clamped and had been punched
Pressing limit is carried out to sheet metal component in journey.5 outer ledge of lower template forms a punching edge of a knife, the punching edge of a knife and trimming punch 6
Sword side collective effect with to sheet metal component carry out trimming.
Punching position limiting structure 1 provided in this embodiment, increases punch block 7 on the basis of original die cutting die, punching
A punching slot is formed between first speed block 7 and the punching edge of a knife of lower template 5, trimming punch 6 travels downwardly under the drive of upper die holder 2
And it is inserted into punching slot, to be punched out to sheet metal component.
Flexible connector 8 is provided between cope plate 3 and upper die holder 2, and cope plate 3 passes through elastic connection with upper die holder 2
Part 8 connects, so that can be close to each other or separate between upper die holder 2 and cope plate 3.In actual moving process, metal plate to be processed
Golden part is placed in lower template 5, and upper die holder 2 moves downward under the drive of external driving device so that cope plate 3 supports
Clamping sheet metal component, upper die holder 2 continue to move downward and trimming punch 6 are driven to be downwardly into jointly on sheet metal component and with lower template 5
Be punched slot, due to the setting of flexible connector 8 so that between cope plate 3 and upper die holder 2 can be close to each other or separate,
And increase the pressure that cope plate 3 is connected on sheet metal component.
In the present embodiment, elastic component connector is compressed spring, and can ensure can between upper die holder 2 and cope plate 3
Elastic connection.Certainly, flexible connector 8 can also be other connectors such as cylinder herein, be not specifically limited herein.
In conjunction with referring to Fig. 2 and Fig. 3, one side edge of the trimming punch 6 far from lower template 5 has the first chamfering structure 9, punch
Block 7 has the second chamfering structure 10, the second chamfering structure 10 and 9 phase of the first chamfering structure close to the one side edge of lower template 5
To setting.Specifically, trimming punch 6 processes rounded corner at lower edge, and punch block 7 processes rounding at upper end-face edge
Angle interferes abnormal phenomenon when trimming punch 6 can be effectively prevent to stretch into punching slot between punch block 7.
In the present embodiment, the chamfer radius of the first chamfering structure 9 is more than or equal to 1mm, the second chamfering structure 10
Chamfer radius is more than or equal to 1mm.Preferably, the chamfer radius of the first chamfering structure 9 is 2mm, the second chamfering structure 10
Chamfer radius is 2mm.Certainly, herein the chamfer radius of the first chamfering structure 9 and the second chamfering structure 10 can also be 1.5mm or
Other numerical value such as person 2.5mm, and difference can also be respectively adopted in the chamfer radius of the first chamfering structure 9 and the second chamfering structure 10
Numerical value.By actual verification, when the chamfer radius of the first chamfering structure 9 and the chamfering plate radius of the second chamfering structure 10 are all higher than
When 1mm, it can effectively prevent interfering abnormal phenomenon, trimming punch 6 is avoided to be abutted in the direction of travel with punch block 7.
In the present embodiment, a side surface of the trimming punch 6 far from lower template 5 and punch block 7 are close to the one of lower template 5
The distance between side surface is 0.005mm to 0.015mm.Specifically, when mold is closed, trimming punch 6 and punch block 7 it
Between clearance fit and interstice coverage between 0.005mm and 0.015mm.Preferably, side of the trimming punch 6 far from lower template 5
Surface is 0.01mm close to the distance between side surface for lower template 5 with punch block 7, avoids trimming punch 6 and is advancing
Stroke interference phenomenon occurs with punch block 7 in the process.
Referring to Fig. 4, locking hole is offered on punch block 7, and lock piece 11, lock piece 11 and lower die are provided in locking hole
Seat 4 is detachably connected, so that punch block 7 is fixed on lower die holder 4.
In the present embodiment, locking hole is counter sink and has countersunk head slot section and connection hole, and it is heavy that lock piece 11 is accommodated in
In head slot section and run through connection hole.Specifically, lock piece 11 is attachment screw, and the head captured of attachment screw is in countersunk head slot
Section, the bar portion of attachment screw stretch into connection hole and are connect with lower die holder 4.By the way that counter sink is arranged, lock piece 11 can be shortened
Connection distance, improve lock piece 11 fixed effect.
In the present embodiment, the bottom of punch block 7 is embedded on lower die holder 4, and the first speed that can liquidate block 7 carries out auxiliary limit
Position.
It is worth noting that, punch block 7 can also use other kinds of fixed form herein, such as in punch block
The 7 side intervals far from lower template 5 be arranged multiple stop members being vertically arranged or punch block 7 far from lower template 5 one
Side interval be arranged it is multiple tilt the stop bars etc. that support, be not specifically limited herein, as long as being that the first speed block 7 that can liquidate is consolidated
Fixed structure is within protection scope of the present invention.
In conclusion present embodiments providing a kind of punching position limiting structure 1, in mold work, trimming punch 6 is being punched
When bear the outside punching lateral force in direction so that trimming punch 6 have moves or occurs the trend deformed outward outward,
Punch block 7 can support on trimming punch 6, since punch block 7 gives reversed lateral force so that trimming punch 6 is not
It can actually occur and be displaced outwardly or deform, the distance between sword side and punching edge of a knife to ensure that trimming punch 6 will not
Defense occurs so that punching burr is constantly in stable state without will increase, and ensures that punching burr is within specified value.
Second embodiment
A kind of diel, including driving device and punching position limiting structure 1 are present embodiments provided, wherein punching limit knot
The basic structure of structure 1 is identical with first embodiment with principle and the technique effect of generation, and to briefly describe, the present embodiment part is not
It refers to place, can refer to corresponding contents in first embodiment
It includes upper die holder 2, cope plate 3, lower die holder 4, lower template 5, trimming punch 6 and punch block to be punched position limiting structure 1
7, lower template 5 is fixed on lower die holder 4, and cope plate 3 connect with upper die holder 2 and is oppositely arranged with lower template 5, punch block
7 are arranged on lower die holder 4 and are spaced setting with lower template 5, and trimming punch 6 is arranged in the bottom of upper die holder 2, and trimming punch 6
Can extend down between punch block 7 and lower template 5 and respectively with 7 clearance fit of lower template 5 and punch block.Driving dress
It sets and is connect with upper die holder 2, for driving upper die holder 2 to move.
In the present embodiment, driving device is fluid pressure drive device, upper die holder 2 can be driven close in the vertical direction or
Person is far from lower die holder 4.It is of course also possible to use other kinds of driving device, this will not be repeated here.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of punching position limiting structure, which is characterized in that including upper die holder (2), cope plate (3), lower die holder (4), lower template
(5), trimming punch (6) and punch block (7), the lower template (5) are fixed on the lower die holder (4), the upper mold
Plate (3) connect with the upper die holder (2) and is oppositely arranged with the lower template (5), and the punch block (7) is arranged under described
It being spaced on die holder (4) and with the lower template (5) and is arranged, the trimming punch (6) is arranged in the bottom of the upper die holder (2),
And the trimming punch (6) can extend down between the punch block (7) and the lower template (5) and respectively with it is described
Lower template (5) and the punch block (7) clearance fit.
2. punching position limiting structure according to claim 1, which is characterized in that the trimming punch (6) is far from the lower die
The one side edge of plate (5) has the first chamfering structure (9).
3. punching position limiting structure according to claim 2, which is characterized in that the chamfering of first chamfering structure (9) half
Diameter is more than or equal to 1mm.
4. punching position limiting structure according to claim 2 or 3, which is characterized in that the punch block (7) is under described
The one side edge of template (5) has the second chamfering structure (10), second chamfering structure (10) and first chamfering structure
(9) it is oppositely arranged.
5. punching position limiting structure according to claim 4, which is characterized in that the chamfering of second chamfering structure (10) half
Diameter is more than or equal to 1mm.
6. punching position limiting structure according to claim 1, which is characterized in that the trimming punch (6) is far from the lower die
One side surface of plate (5) is close to a distance between side surface for the lower template (5) with the punch block (7)
0.005mm to 0.015mm.
7. punching position limiting structure according to claim 1, which is characterized in that offer locking on the punch block (7)
Hole is provided with lock piece (11) in the locking hole, and the lock piece (11) is detachably connected with the lower die holder (4), so that
The punch block (7) is fixed on the lower die holder (4).
8. punching position limiting structure according to claim 7, which is characterized in that the locking hole is counter sink and has countersunk head
Slot section and connection hole, the lock piece (11) are accommodated in the countersunk head slot section and run through the connection hole.
9. punching position limiting structure according to claim 1, which is characterized in that the cope plate (3) and the upper die holder (2)
Between be provided with flexible connector (8), and the cope plate (3) passes through the flexible connector (8) even with the upper die holder (2)
It connects, so that can be close to each other or separate between the upper die holder (2) and the cope plate (3).
10. a kind of diel, which is characterized in that including driving device and such as claim 1-9 any one of them punching limit
Bit architecture, the driving device are connect with the upper die holder (2), for driving the upper die holder (2) to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811026719.7A CN108714645A (en) | 2018-09-04 | 2018-09-04 | A kind of punching position limiting structure and diel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811026719.7A CN108714645A (en) | 2018-09-04 | 2018-09-04 | A kind of punching position limiting structure and diel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108714645A true CN108714645A (en) | 2018-10-30 |
Family
ID=63913951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811026719.7A Pending CN108714645A (en) | 2018-09-04 | 2018-09-04 | A kind of punching position limiting structure and diel |
Country Status (1)
| Country | Link |
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| CN (1) | CN108714645A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496023A (en) * | 2020-04-23 | 2020-08-07 | 林义 | Bending device for sheet metal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817206A (en) * | 2014-03-14 | 2014-05-28 | 东莞市东升压铸模具有限公司 | Side shearing die |
| CN204396603U (en) * | 2014-12-26 | 2015-06-17 | 武汉惠恒实业有限公司 | Automobile-used mould single-side cutting edge is tossed about device |
| CN105537419A (en) * | 2015-12-17 | 2016-05-04 | 苏州恒泰金属制品有限公司 | Blanking and bending die with limiting function and positioning function |
| CN208840292U (en) * | 2018-09-04 | 2019-05-10 | 奥克斯空调股份有限公司 | A kind of punching position limiting structure and stamping die |
-
2018
- 2018-09-04 CN CN201811026719.7A patent/CN108714645A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817206A (en) * | 2014-03-14 | 2014-05-28 | 东莞市东升压铸模具有限公司 | Side shearing die |
| CN204396603U (en) * | 2014-12-26 | 2015-06-17 | 武汉惠恒实业有限公司 | Automobile-used mould single-side cutting edge is tossed about device |
| CN105537419A (en) * | 2015-12-17 | 2016-05-04 | 苏州恒泰金属制品有限公司 | Blanking and bending die with limiting function and positioning function |
| CN208840292U (en) * | 2018-09-04 | 2019-05-10 | 奥克斯空调股份有限公司 | A kind of punching position limiting structure and stamping die |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111496023A (en) * | 2020-04-23 | 2020-08-07 | 林义 | Bending device for sheet metal |
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