CN108580661A - A kind of scarf punching technique - Google Patents
A kind of scarf punching technique Download PDFInfo
- Publication number
- CN108580661A CN108580661A CN201810264764.XA CN201810264764A CN108580661A CN 108580661 A CN108580661 A CN 108580661A CN 201810264764 A CN201810264764 A CN 201810264764A CN 108580661 A CN108580661 A CN 108580661A
- Authority
- CN
- China
- Prior art keywords
- punching
- connecting rod
- punch
- plane
- pin
- 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
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
-
- 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
- B21D53/00—Making other particular articles
- B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The present invention relates to punching techniques field, specially a kind of scarf punching technique, including：Prepare before making：Punch-pin and concave die are checked, the preceding working procedure of connecting bar punching is modified；Positioning pretreatment is punched inclined-plane, upper and lower mould arrangement：Using the punch of punch-pin as lower die, using cavity plate as upper mold, then needs kidney slot inclined-plane position to be placed between upper and lower mould on connecting rod and position；Edge-cutting and hole-punching：The inclined-plane part material of connecting rod is punched out；It examines：Appearance, dimension control to connecting rod, then whether the edge of inspection hole is smooth, if has residual burr.This technique only needs to do the processing for being punched inclined-plane and upper and lower mould arrangement before punching, and the technique in later stage need not be changed, and process variations amount is very small, and solves practical problem again, plays good economic benefit.
Description
Technical field
The present invention relates to punching technology more particularly to a kind of scarf punching techniques.
Background technology
Connecting rod class product, in existing product, yield and the output value are all bigger workpiece, belong to key project, emphasis
Product annual sales amount can reach 25,000,000 or so, belong to the project paid close attention to.Early period stock layout production in technique be
The shape punching press of workpiece is completed to carry out trimming and punching punching press simultaneously in last process.During punching press, shape does not have
Problematic, single intermediate kidney slot has partial hole during on inclined-plane in punching press, and strength of concave mould is inadequate, is very easy to broken
Damage, causes Work-piece burr bigger, and to being welded together, burr uses influence to product for this part and another part in produced on-site
Less, belong to band defect to produce.But hidden danger is left to the quality of product, later stage customers' place's use is likely to cause complaint, into
And the technology image of our company can be influenced.
In the technique stock layout of early stage, punching is using common normal punch pattern, and lower section is cavity plate, and top is punch-pin,
In figure centre circle source, strength of concave mould is very poor, and general production hundreds of is just damaged, and the burr of workpiece can become larger after breakage, in order to just
Often production, can only lower the requirement of burr, and Burr Problem never solves on workpiece.
In view of the above, it is necessary to provide a kind of scarf punching process solving Burr Problem.
Invention content
The present invention is in place of avoiding above-mentioned the shortcomings of the prior art, to provide a kind of connecting rod product scarf punching technique,
It solves practical problem, plays good economic benefit.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of scarf punching technique, which is characterized in that include the following steps：
1）Prepare before making：Punch-pin and concave die are checked, to the left fault location of the preceding working procedure of connecting bar punching
It is modified；
2）Positioning pretreatment：Locating notch is opened on connecting rod；
3）It is punched inclined-plane：By step 2）In locating notch do location base, the kidney slot inclined-plane position of connecting rod is rushed
It cuts out, the place for easy ting produce burr is first cut；
4）Upper and lower mould is arranged：It is positioned by locating notch using cavity plate as upper mold using the punch of punch-pin as lower die, so
Punching position is needed to be placed between upper and lower mould corresponding position on connecting rod afterwards；
5）Edge-cutting and hole-punching：To needing the position of punching to be punched out on the inclined-plane of connecting rod；
6）It examines：It tests to appearance, the size of connecting rod, and the flatness for the bore edges cut that liquidate and residual burr carry out
It checks.
Improvement to above-mentioned technical proposal：The punch-pin is identical with cavity plate material, hard using steel, hard alloy, steel knot
Matter alloy or zinc-containing alloy make.
The beneficial effects of the present invention are：
Scarf punching technique provided by the present invention, avoids burr Producing reason, hair caused by when thoroughly solving punching
Thorn problem.
Description of the drawings
Fig. 1：The schematic diagram of product of the present invention.
Fig. 2：The schematic diagram of locating notch of the present invention.
Fig. 3：The present invention is punched the structural schematic diagram on inclined-plane.
Fig. 4：The structural schematic diagram of edge-cutting and hole-punching of the present invention.
Specific implementation mode
With reference to specific drawings and examples, the invention will be further described.
As shown in Figs 1-4：A kind of scarf punching technique, includes the following steps：
1, a kind of scarf punching technique, which is characterized in that include the following steps：
1）Prepare before making：Punch-pin and concave die are checked, to the left fault location of preceding working procedure of 1 punching of connecting rod
It is modified；
2）Positioning pretreatment：Locating notch 2 is opened on connecting rod；
3）It is punched inclined-plane：As shown in figure 3, passing through step 2）In locating notch do location base, to the kidney slot inclined-plane of connecting rod
Position is punched, and the place for easy ting produce burr is first cut；At this moment strength of concave mould is relatively high, and there is no grinding tool workpiece to be easy
Damaged problem easy tos produce in the place such as figure of burr at A, and material has been cut through；
4）Upper and lower mould is arranged：As shown in figure 4, using the punch of punch-pin 3 as lower die, it regard cavity plate 4 as upper mold, passes through locating notch
It is positioned, then needs punching position to be placed between upper and lower mould corresponding position on connecting rod；
5）Edge-cutting and hole-punching：To needing the position of punching to be punched out on the inclined-plane of connecting rod；Due to easy ting produce the ground of burr early period
Side, material have been cut through, and the cavity plate of mold does not stress, and material herein only needs to be punched down together i.e. during punching again
Can, this just avoids the basic reason of burr generation；
6）It examines：It tests to appearance, the size of connecting rod, and the flatness for the bore edges cut that liquidate and residual burr carry out
It checks.
Improvement to above-mentioned technical proposal：The punch-pin is identical with cavity plate material, hard using steel, hard alloy, steel knot
Matter alloy or zinc-containing alloy make.
It should be noted last that the above specific implementation mode is merely illustrative of the technical solution of the present invention and unrestricted,
Although being described the invention in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range, should all cover
In the scope of the claims of the present invention.
Claims (2)
1. a kind of scarf punching technique, which is characterized in that include the following steps：
1）Prepare before making：Punch-pin and concave die are checked, to connecting rod（1）The left defect of preceding working procedure of punching
It is modified at place；
2）Positioning pretreatment：Locating notch is opened on connecting rod（2）；
3）It is punched inclined-plane：Pass through step（2）In locating notch do location base, the kidney slot inclined-plane position of connecting rod is rushed
It cuts out, the place for easy ting produce burr is first cut；
4）Upper and lower mould is arranged：By punch-pin（3）Punch as lower die, by cavity plate（4）As upper mold, determined by locating notch
Position, then needs punching position to be placed between upper and lower mould corresponding position on connecting rod；
5）Edge-cutting and hole-punching：To needing the position of punching to be punched out on the inclined-plane of connecting rod；
6）It examines：It tests to appearance, the size of connecting rod, and the flatness for the bore edges cut that liquidate and residual burr carry out
It checks.
2. a kind of scarf punching technique as described in claim 1, it is characterised in that：The punch-pin is identical with cavity plate material, adopts
It is made of steel, hard alloy, steel bonded carbide or zinc-containing alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264764.XA CN108580661A (en) | 2018-03-28 | 2018-03-28 | A kind of scarf punching technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810264764.XA CN108580661A (en) | 2018-03-28 | 2018-03-28 | A kind of scarf punching technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108580661A true CN108580661A (en) | 2018-09-28 |
Family
ID=63624837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810264764.XA Pending CN108580661A (en) | 2018-03-28 | 2018-03-28 | A kind of scarf punching technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108580661A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11309522A (en) * | 1998-04-24 | 1999-11-09 | Honda Motor Co Ltd | Method for punching out plate material |
| JP3282275B2 (en) * | 1993-03-10 | 2002-05-13 | 松下電器産業株式会社 | Stamping dies for thin plates |
| KR20110095748A (en) * | 2010-02-19 | 2011-08-25 | (주)세원이엔아이 | Oil pressure punch of more than two operate press mold |
| CN103658314A (en) * | 2012-09-18 | 2014-03-26 | 上海强精金属制品有限公司 | Burr-free punching mold system |
| CN203711579U (en) * | 2014-02-14 | 2014-07-16 | 福建龙净环保股份有限公司 | Device for manufacturing long hole for leg of metal channel steel |
| CN205096352U (en) * | 2015-09-28 | 2016-03-23 | 上海通工汽车零部件有限公司 | Inclined plane cut -out press |
| CN105798106A (en) * | 2015-01-21 | 2016-07-27 | 现代自动车株式会社 | Apparatus and method of shearing for quality improvement for steel plate shearing edge |
| CN107052147A (en) * | 2017-06-21 | 2017-08-18 | 苏州宝成汽车冲压有限公司 | Tooth sychronisation is taken out in engine oil box punching |
-
2018
- 2018-03-28 CN CN201810264764.XA patent/CN108580661A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3282275B2 (en) * | 1993-03-10 | 2002-05-13 | 松下電器産業株式会社 | Stamping dies for thin plates |
| JPH11309522A (en) * | 1998-04-24 | 1999-11-09 | Honda Motor Co Ltd | Method for punching out plate material |
| KR20110095748A (en) * | 2010-02-19 | 2011-08-25 | (주)세원이엔아이 | Oil pressure punch of more than two operate press mold |
| CN103658314A (en) * | 2012-09-18 | 2014-03-26 | 上海强精金属制品有限公司 | Burr-free punching mold system |
| CN203711579U (en) * | 2014-02-14 | 2014-07-16 | 福建龙净环保股份有限公司 | Device for manufacturing long hole for leg of metal channel steel |
| CN105798106A (en) * | 2015-01-21 | 2016-07-27 | 现代自动车株式会社 | Apparatus and method of shearing for quality improvement for steel plate shearing edge |
| CN205096352U (en) * | 2015-09-28 | 2016-03-23 | 上海通工汽车零部件有限公司 | Inclined plane cut -out press |
| CN107052147A (en) * | 2017-06-21 | 2017-08-18 | 苏州宝成汽车冲压有限公司 | Tooth sychronisation is taken out in engine oil box punching |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |