CN108115056A - Material returning plate of precision stamping die - Google Patents
Material returning plate of precision stamping die Download PDFInfo
- Publication number
- CN108115056A CN108115056A CN201711431505.3A CN201711431505A CN108115056A CN 108115056 A CN108115056 A CN 108115056A CN 201711431505 A CN201711431505 A CN 201711431505A CN 108115056 A CN108115056 A CN 108115056A
- Authority
- CN
- China
- Prior art keywords
- stripper
- protrusion
- punching die
- recess portion
- precise punching
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 21
- 238000004080 punching Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000013011 mating Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 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
- 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
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/18—Lubricating, e.g. lubricating tool and workpiece simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses a stripper plate of a precision stamping die. The stripper plate comprises a stripper plate body, wherein one or more stripper holes matched with a male die are formed in the stripper plate body, the hole wall of each stripper hole comprises smooth surface sections and sawtooth surface sections which are arranged at intervals, each sawtooth surface section comprises protrusions and concave parts which are continuously arranged, and two ends of each concave part extend to two side surfaces of the stripper plate body respectively. The hole wall of the material returning hole of the material returning plate is designed into a sawtooth shape, so that enough matching precision is provided; meanwhile, the contact area between the male die and the stripper plate is reduced, and the generation of heat is reduced; secondly, form many triangle-shaped gaps between the two, increased the heat dissipation space to lubricating oil also can smoothly flow in the gap, improved the lubrication between material returned board and the terrace die, lubricated improvement is strengthened and is further reduced the production of heat, simple structure, reasonable in design.
Description
Technical field
The invention belongs to technical fields of mechanical processing, and in particular to a kind of precise punching die stripper.
Background technology
Stripper is one of important process component of stamping die, plays the role of binder and the material returned.In precise punching die
In structure, stripper is also oriented to punch-pin except playing binder and the material returned.
For existing stripper with punch-pin using being slidably matched, mating surface is shiny surface, bilateral (i.e. mating surface) gap control
System is in 0.04~0.06mm.Tonnage, at 30~80 beats/min, is more than 50 beats/min in below 250t common punch press speed in speed
Zhong Shi, with punch-pin because high-speed motion generates amount of heat, localized hyperthermia's expansion causes to sting between stripper and punch-pin stripper
It closes, punch-pin can be caused to pull off or the problems such as stripper is pulled.
The content of the invention
The purpose of the present invention is exactly insufficient in order to solve existing for above-mentioned background technology, provide it is a kind of it is simple in structure, can be with
It radiates in time, be slidably matched precise punching die stripper with high accuracy.
The technical solution adopted by the present invention is：A kind of precise punching die stripper, including stripper body, the material returned
Plate body is equipped with one or more material returned holes being used for punch-pin cooperation, and the hole wall in the material returned hole includes spaced apart light
Sliding surface section and serrated face section, the serrated face section includes the protrusion continuously arranged and recess portion, the recess portion both ends extend respectively to
The two sides of stripper body.
Further, the surface of the protrusion includes top surface and positioned at two sides of top surface both sides, the top surface and side
Face is flat shape, and the top surface width is 0.5mm-1mm, and the width between the top edge of adjacent protrusion is 0.5mm-
1mm。
Further, two sides opposite between the adjacent protrusion are crossed to form the recess portion, between two sides
Angle α be 60-120 degree.
Further, the surface of the protrusion is arc shape, and the width between the top of adjacent protrusion is 1-2mm.
Further, the cambered surface between the top of the adjacent protrusion is crossed to form the recess portion.
Further, the recess portion is linear pattern or shaped form.
Further, the cup depth of the recess portion is 0.4mm-0.8mm
Further, the shiny surface section edge and the roof intersection of the protrusion, the shiny surface section are flat shape
Or arc shape.
Further, behind punch-pin insertion material returned hole, the convex top of the shiny surface section or serrated face section with it is convex
Unilateral gap between mould surface is 0.02mm-0.25mm.
The material returned hole hole wall of stripper is designed to zigzag fashion by the present invention, provides not only enough fit precision；Together
When reduce the contact area of punch-pin and stripper, reduce the generation of heat；Secondly, a plurality of triangular shape is formed therebetween
Gap, adds heat-dissipating space, and lubricating oil can also smooth inflow gap, improve the profit between stripper and punch-pin
Sliding, the improvement of lubrication strengthens further reducing the generation of heat, and simple in structure, design is reasonable.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the planar structure schematic diagram of the present invention.
Fig. 3 is enlarged drawing at I in Fig. 1.
Fig. 4 is enlarged drawing at II in Fig. 2.
Fig. 5 is enlarged drawing at III in Fig. 2.
Fig. 6 is enlarged drawing at IV in Fig. 2.
In figure：1- stripper bodies；2- materials returned hole；3- punch-pin；4- shiny surface sections；5- serrated face sections；6- protrusions；7- is recessed
Portion；8- top surfaces；9- sides；10- gaps.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments, convenient for this hair is well understood
It is bright, but they do not form the present invention and limit.
As shown in figures 1 to 6, a kind of precise punching die stripper of the present invention, including stripper body 1, the stripper sheet
Body 1 is equipped with one or more material returned holes 2 for being used to coordinate with punch-pin 3, according to the difference of punch structure, the shape in multiple material returned holes
Shape also differs, and the hole wall in the material returned hole 2 includes spaced apart shiny surface section 4 and serrated face section 5, the serrated face section 5
Including the protrusion 6 continuously arranged and recess portion 7,7 both ends of recess portion extend respectively to the two sides of stripper body 1, i.e. recess portion 7
Stripper body is run through at both ends, and recess portion entire length shape can be linear pattern or shaped form.
In said program, as shown in figure 5, the surface of protrusion 6 includes top surface 8 and positioned at two side 9 of 8 both sides of top surface,
The top surface 8 and side 9 are flat shape, the 8 width L1 of top surface be 0.5mm-1mm, 8 edge of top surface of adjacent protrusion 6
Between width L2 be 0.5mm-1mm.Two opposite sides 9 are crossed to form the recess portion 7, two sides between adjacent protrusion 6
Angle α between face 9 is 60-120 degree.
In said program, the surface of protrusion 6 may be designed in arc shape, the width between the top of adjacent protrusion 6
For 1-2mm.Cambered surface between the top of adjacent protrusion is crossed to form the recess portion.This kind of cambered surface designing scheme is shown not in figure
Show.
In said program, the cup depth of recess portion 7 is 0.4mm-0.8mm
In said program, 4 edge of shiny surface section intersects with raised 6 top 6.1, and the shiny surface section 4 is plane
Shape or arc shape.
In said program, after punch-pin 3 is inserted into material returned hole 2, at the top of the protrusion 6 of the shiny surface section 4 or serrated face section 5 with it is convex
10 size of unilateral gap between 3 surface 3.1 of mould is 0.02mm-0.25mm.Because devising sawtooth end face on the hole wall of material returned hole,
Heat dissipation performance is improved, therefore reduces unilateral gap, further improves guiding accuracy.
The punch-pin mating surface of stripper is processed into zigzag by the present invention, and zigzag processing is simple, can continue to use original
Wire cutting technology.For new die, this structure is directly used when designing stripper, it is only necessary to increase a small amount of processing cost i.e.
Can, cost is relatively low.The serrated face design of material returned hole hole wall, had not only reserved enough mating surfaces to ensure mold guiding accuracy, but also
Effective heat dissipation and lubricating place are provided, punch-pin is thoroughly solved and stripper is killed, punch-pin is pulled off to pull with stripper and asked
Topic.
Basic principle, main feature and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (9)
1. a kind of precise punching die stripper, including stripper body (1), set on the stripper body (1) there are one or
Multiple material returned holes (2) being used for punch-pin cooperation, it is characterised in that：The hole wall of the material returned hole (2) includes spaced apart light
Sliding surface section (4) and serrated face section (5), the serrated face section (5) include the protrusion (6) continuously arranged and recess portion (7), the recess portion
(7) both ends extend respectively to the two sides of stripper body (1).
2. precise punching die stripper according to claim 1, it is characterised in that：The surface of the protrusion (6) includes
Top surface (8) and two sides (9) positioned at top surface (8) both sides, the top surface (8) and side (9) are flat shape, the top
Face (8) width is 0.5mm-1mm, and the width between top surface (8) edge of adjacent protrusion (6) is 0.5mm-1mm.
3. precise punching die stripper according to claim 2, it is characterised in that：Phase between the adjacent protrusion (6)
To two sides (9) be crossed to form the recess portion (7), the angle between two sides (9) is 60-120 degree.
4. precise punching die stripper according to claim 1, it is characterised in that：The surface of the protrusion (6) is arc
Face shape, the width between the top of adjacent protrusion (7) are 1-2mm.
5. precise punching die stripper according to claim 4, it is characterised in that：The top of the adjacent protrusion (6)
Between cambered surface be crossed to form the recess portion (7).
6. precise punching die stripper according to claim 1, it is characterised in that：The recess portion (7) for linear pattern or
Shaped form.
7. any one precise punching die stripper according to claim 1-6, it is characterised in that：The recess portion (7)
Cup depth be 0.4mm-0.8mm.
8. precise punching die stripper according to claim 1, it is characterised in that：Shiny surface section (4) edge with
The roof intersection of the protrusion (6), the shiny surface section (4) are flat shape or arc shape.
9. precise punching die stripper according to claim 1, it is characterised in that：Punch-pin (3) the insertion material returned hole
(2) after, the unilateral gap at the top of the protrusion (6) of the shiny surface section (4) or serrated face section between convex mould surface (3.1) is
0.02mm-0.25mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711431505.3A CN108115056A (en) | 2017-12-26 | 2017-12-26 | Material returning plate of precision stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711431505.3A CN108115056A (en) | 2017-12-26 | 2017-12-26 | Material returning plate of precision stamping die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108115056A true CN108115056A (en) | 2018-06-05 |
Family
ID=62231723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711431505.3A Pending CN108115056A (en) | 2017-12-26 | 2017-12-26 | Material returning plate of precision stamping die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108115056A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008084536A1 (en) * | 2007-01-11 | 2008-07-17 | Hidaka Seiki Kabushiki Kaisha | Method of working platelike material and die assembly |
| CN202539352U (en) * | 2011-11-03 | 2012-11-21 | 阳江市亿利模具有限公司 | Continuous stamping die structure for thinning scissors |
| CN103920814A (en) * | 2014-04-24 | 2014-07-16 | 靖江三鹏汽车模具制造有限公司 | Blanking and punching process for small parts |
| CN205110496U (en) * | 2015-08-14 | 2016-03-30 | 立兴杨氏实业（深圳）有限公司 | Numerical control stamping die |
| CN205551197U (en) * | 2016-05-04 | 2016-09-07 | 深圳市新联兴精密压铸有限公司 | Smart die stamping device |
| CN207723352U (en) * | 2017-12-26 | 2018-08-14 | 东风汽车有限公司 | Material returning plate of precision stamping die |
-
2017
- 2017-12-26 CN CN201711431505.3A patent/CN108115056A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008084536A1 (en) * | 2007-01-11 | 2008-07-17 | Hidaka Seiki Kabushiki Kaisha | Method of working platelike material and die assembly |
| CN202539352U (en) * | 2011-11-03 | 2012-11-21 | 阳江市亿利模具有限公司 | Continuous stamping die structure for thinning scissors |
| CN103920814A (en) * | 2014-04-24 | 2014-07-16 | 靖江三鹏汽车模具制造有限公司 | Blanking and punching process for small parts |
| CN205110496U (en) * | 2015-08-14 | 2016-03-30 | 立兴杨氏实业（深圳）有限公司 | Numerical control stamping die |
| CN205551197U (en) * | 2016-05-04 | 2016-09-07 | 深圳市新联兴精密压铸有限公司 | Smart die stamping device |
| CN207723352U (en) * | 2017-12-26 | 2018-08-14 | 东风汽车有限公司 | Material returning plate of precision stamping die |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211202 Address after: 442020 No. 115, Checheng West Road, Shiyan City, Hubei Province Applicant after: General casting and Forging Branch of Dongfeng auto parts (Group) Co.,Ltd. Applicant after: DONGFENG MOTER Co.,Ltd. Address before: 430056 No. 10 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Wuhan, Hubei Applicant before: DONGFENG MOTER Co.,Ltd. |