CN104550446A - Rotary cutting punch for reducing punch shear force - Google Patents
Rotary cutting punch for reducing punch shear force Download PDFInfo
- Publication number
- CN104550446A CN104550446A CN201510017794.7A CN201510017794A CN104550446A CN 104550446 A CN104550446 A CN 104550446A CN 201510017794 A CN201510017794 A CN 201510017794A CN 104550446 A CN104550446 A CN 104550446A
- Authority
- CN
- China
- Prior art keywords
- punch
- rotary cutting
- cutting punch
- cutting
- reducing
- 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.)
- Granted
Links
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
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a rotary cutting punch for reducing punch shear force. The rotary cutting punch for reducing the punch shear force comprises a rotary cutting punch body, wherein a positioning part is fixed in the rotary cutting punch body, the positioning part comprises a punch, a positioning portion and a fixing portion, the punch is arranged in a product to be punched, the product to be punched is placed in a female die, the punch is a cylinder, at least two cutting faces which are connected are ground on the surface of the punch, and value of an intersection angle between each two adjacent cutting faces ranges from 170 degrees to 175 degrees. The rotary cutting punch for reducing the punch shear force can change curved face touch cutting used in rotary cutting of an existing rotary cutting punch into point contact cutting and line contact cutting by changing the shape of the punch, effectively eliminates the phenomenon that the existing rotary cutting punch bears overlarge force, prolongs use life of the punch part, improves production efficiency and stability of the product size, and reduces maintenance frequency and maintenance cost of a die.
Description
Technical field
The present invention relates to a kind of rotary cutting punch, particularly relate to the drift of a kind of reduction for drift shearing force during rotary-cut blanking, belong to Machining Technology field.
Background technology
The main operational principle of the rotary cutting mechanism in diel is the stamping-out motion conversion of motion of punch press vertical direction being become mould inside horizontal direction.Drift acts directly on slide block, is provided with spring below described slide block.Described spring can allow patrix part move downward against slide block always and the gap between die and drift is remained within rational stamping-out scope.After rotary-cut starts, drift and die move according to the track of guide rail.Die-cut complete after, die resets according to die-cut track.
The stamping-out of rotary-cut is horizontal direction, cuts in this course to bring to drift horizontal to cut power, if drift size is less very greatly, the phenomenon that will twist off, drift is fixing, and die and slide block are fixed together, and drives die horizontal movement by the horizontal movement of slide block.Existing drift is as Fig. 1, shown in Fig. 2, generally comprise drift body and pass through the retaining element 2 that welding is arranged on drift body stiff end 12, rotary-cut end 11 cross section of drift body is rounded, need the position constantly changing stamping-out to cut product during stamping-out, when adopting the mode of this rotary-cut to produce accurate miniature product, the situation of drift fracture damage is very frequent, many inconvenience is caused to the production of enterprise, simultaneously, too much maintenance reduces the production efficiency of enterprise, add enterprise to the replacing of part of damage and maintenance to pay wages, further increase the production cost of enterprise.
Summary of the invention
In view of the defect that above-mentioned prior art exists, the object of the invention is to propose a kind of rotary cutting punch for reducing drift shearing force.
Object of the present invention, will be achieved by the following technical programs:
A kind of rotary cutting punch for reducing drift shearing force, comprise rotary cutting punch body, described rotary cutting punch body comprises stiff end and rotary-cut end, locating element is provided with in described rotary cutting punch body, one end of described locating element is fixedly welded on the stiff end of rotary cutting punch body, the surfacing of the rotary-cut end of described rotary cutting punch body has at least two adjacent tangent planes, forms angle between described adjacent tangent plane.
Preferably, the angle between described tangent plane is 170 ° ~ 175 °.
Preferably, described tangent plane is provided with three.
The present invention gives prominence to effect: by changing the shape of drift, curved face contact when rotary cutting punch is die-cut is in the past cut change into and first cut by point cantact, thus efficiently solve stressed excessive phenomenon when rotary cutting punch cuts, improve the service life of punch part, improve the stability of production efficiency and product size, decrease frequency and the mould maintenance cost of mold repair.
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present invention, is easier to understand, grasp to make technical solution of the present invention.
Accompanying drawing explanation
Fig. 1 is rotary cutting punch structural representation in prior art.
Fig. 2 is the sectional view of rotary cutting punch in prior art.
Fig. 3 is structural representation of the present invention.
Fig. 4 is cross sectional representation of the present invention, has now better reacted the structure of drift rotary-cut end.
Detailed description of the invention
As shown in Fig. 3 ~ 4, present invention is disclosed a kind of rotary cutting punch for reducing drift shearing force, consistent with prior art, include rotary cutting punch body, described rotary cutting punch body comprises stiff end 12 and rotary-cut end 11, be provided with locating element 2 in described rotary cutting punch body, one end of described locating element is fixedly welded on the stiff end 12 of rotary cutting punch body.The structure of described locating element 2 is same as the prior art, does not repeat them here.
The improvement of rotary cutting punch of the present invention is, the surfacing of the rotary-cut end 11 of described rotary cutting punch body has at least two adjacent tangent planes, forms angle between described adjacent tangent plane.Angle between described tangent plane is 170 ° ~ 175 °.The junction of tangent plane forms wedge angle, and this wedge angle is when mould carries out stamping-out, and first the wedge angle of junction can cut product.On physics, same masterpiece is used in a little and on face, pressure on the point obvious specific surface of pressure above wants large, thus make product in tangent plane junction first stamping-out separately, the reaction force being subject to blanking pressure when punch cuts herein is on the contrary less.
Certainly, described tangent plane can be provided with multiple as required, in order to easy to process and stamping-out efficiency, general described tangent plane is provided with three, shown in composition graphs 4, comprise the first tangent plane 3, second tangent plane 4, the 3rd tangent plane 5, adjacent formation angle between three tangent planes, as the angle 34 that the first tangent plane 3 and the second tangent plane 4 are formed, when stamping-out, angle 34 and the angle between the second tangent plane 4 and the 3rd tangent plane 5 first can carry out stamping-out incision to product, improve drift horizontal direction force situation greatly, the original state of the rotary-cut that this structure makes is cutting of point cantact.Improve the service life (bringing up to 100000 stamping-outs by original 30000 stamping-outs) of mould parts, decrease die cost.Decrease the time that mould is safeguarded, greatly improve the efficiency of production.
The present invention still has numerous embodiments, all employing equivalents or equivalent transformation and all technical schemes formed, and all drops within protection scope of the present invention.
Claims (3)
1. one kind for reducing the rotary cutting punch of drift shearing force, comprise rotary cutting punch body, described rotary cutting punch body comprises stiff end and rotary-cut end, locating element is provided with in described rotary cutting punch body, one end of described locating element is fixedly welded on the stiff end of rotary cutting punch body, it is characterized in that: the surfacing of the rotary-cut end of described rotary cutting punch body has at least two adjacent tangent planes, forms angle between described adjacent tangent plane.
2. the rotary cutting punch for reducing drift shearing force according to claim 1, is characterized in that: the angle between described tangent plane is 170 ° ~ 175 °.
3. the rotary cutting punch for reducing drift shearing force according to claim 1, is characterized in that: described tangent plane is provided with three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017794.7A CN104550446B (en) | 2015-01-14 | 2015-01-14 | For reducing the rotary cutting punch of drift shearing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510017794.7A CN104550446B (en) | 2015-01-14 | 2015-01-14 | For reducing the rotary cutting punch of drift shearing force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104550446A true CN104550446A (en) | 2015-04-29 |
| CN104550446B CN104550446B (en) | 2017-01-04 |
Family
ID=53068120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510017794.7A Active CN104550446B (en) | 2015-01-14 | 2015-01-14 | For reducing the rotary cutting punch of drift shearing force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104550446B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186049A (en) * | 2017-07-07 | 2017-09-22 | 淄博沃德机械科技有限公司 | Screw head punch |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197321A (en) * | 1995-01-30 | 1996-08-06 | Amada Co Ltd | Plate material finishing machine |
| CN2247569Y (en) * | 1995-10-05 | 1997-02-19 | 庄添财 | Rotary cutter for pipe punching machine |
| CN1281396A (en) * | 1997-12-05 | 2001-01-24 | 林登公司 | Apparatus for and method of cutting spirally formed pipe by using non-rotating, overlapping knives |
| CN1607986A (en) * | 2001-12-28 | 2005-04-20 | 新进Sm股份有限公司 | Circular saw assembly for cutting metal plates |
| CN201157858Y (en) * | 2007-12-10 | 2008-12-03 | 黄开强 | Tensioning member edge trimmer |
| CN204545115U (en) * | 2015-01-14 | 2015-08-12 | 苏州和林微纳科技有限公司 | For reducing the rotary cutting punch of drift shearing force |
-
2015
- 2015-01-14 CN CN201510017794.7A patent/CN104550446B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08197321A (en) * | 1995-01-30 | 1996-08-06 | Amada Co Ltd | Plate material finishing machine |
| CN2247569Y (en) * | 1995-10-05 | 1997-02-19 | 庄添财 | Rotary cutter for pipe punching machine |
| CN1281396A (en) * | 1997-12-05 | 2001-01-24 | 林登公司 | Apparatus for and method of cutting spirally formed pipe by using non-rotating, overlapping knives |
| CN1607986A (en) * | 2001-12-28 | 2005-04-20 | 新进Sm股份有限公司 | Circular saw assembly for cutting metal plates |
| CN201157858Y (en) * | 2007-12-10 | 2008-12-03 | 黄开强 | Tensioning member edge trimmer |
| CN204545115U (en) * | 2015-01-14 | 2015-08-12 | 苏州和林微纳科技有限公司 | For reducing the rotary cutting punch of drift shearing force |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186049A (en) * | 2017-07-07 | 2017-09-22 | 淄博沃德机械科技有限公司 | Screw head punch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104550446B (en) | 2017-01-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 Emei Mountain Road, 80 hi tech Zone, Jiangsu, Suzhou Patentee after: Suzhou Helin Micro Technology Co., Ltd Address before: 215000 Emei Mountain Road, 80 hi tech Zone, Jiangsu, Suzhou Patentee before: Suzhou Helin Micro-Nano Technology Co., Ltd. |