CN104384353A - Bending die - Google Patents
Bending die Download PDFInfo
- Publication number
- CN104384353A CN104384353A CN201410635139.3A CN201410635139A CN104384353A CN 104384353 A CN104384353 A CN 104384353A CN 201410635139 A CN201410635139 A CN 201410635139A CN 104384353 A CN104384353 A CN 104384353A
- Authority
- CN
- China
- Prior art keywords
- bending
- die body
- blank
- female die
- top plate
- 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
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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to a bending die. The bending die comprises a male die body, a blank for bending forming and a female die body, wherein the blank is in contact with a top plate all the time during bending; two ejector rods are connected below the top plate and are connected with the female die body; three small rolls and a big roll are arranged in an inlet cavity of the female die body; the small rolls are used for supporting the big roll; a baffle plate is arranged on one side of the inlet cavity and is tangent to the big roll; angle plates are arranged on the two sides of the upper end of the female die body. By arranging the small rolls and the big roll to form a roll structure, violent sliding friction at a die inlet can be changed into rolling friction during bending so as to avoid scratch of a workpiece; by arranging the baffle plate and the angle plates, discretion of the rolls is effectively avoided; the top plate and the ejector rods are arranged at a pit bottom of the female die body, so that sufficient pressure is applied to the blank through the top plate at the beginning of bending, the phenomenon of inward tilting or extension of the side wall of a bent part is avoided, and the dimensional accuracy of the bent member is improved.
Description
Technical field
The present invention relates to mould applications, particularly relate to a kind of bending die.
Background technology
Bending process is the needs according to part shape, by mould and forcing press, blank is curved certain angle, the Sheet Metal Forming Technology method of definite shape workpiece, its application is quite extensive, as automobile much carries out cover piece, the tank bracket component of car, handle on motorcycle, foot support, support element on bicycle, handle, little of knocker, clip (iron clamp) etc.
In bending process, needing any surface finish and the no marking that ensure curved rear part, be also the important required precision project of bool usually, but bending die of the prior art in the course of the work, the surface of bool more or less can be made to occur damage, reduce the quality of workpiece; Simultaneously in BENDING PROCESS, easily occur that the sidewall of bool slopes inwardly or outer Zhang Xianxiang, affect the form and dimensional precision of workpiece.
Summary of the invention
The present invention, in order to overcome deficiency of the prior art, provides a kind of bending die.
The present invention is achieved through the following technical solutions:
A kind of bending die, comprises body of punch, the blank for brake forming, die body, described blank in BENDING PROCESS all the time with top plate contact, the below of described top board connects two push rods, and described push rod is connected with die body; In the entrance cavity of described die body, be provided with three pony rolls and a big roller, described pony roll is for supporting big roller, and the side of described entrance cavity is provided with baffle plate, described baffle plate and big roller tangent; The both sides, upper end of described die body are provided with gusset.
As the preferred technical solution of the present invention, the lower end of described body of punch is provided with wearing layer.
As the preferred technical solution of the present invention, tangent between described three pony rolls.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is provided with pony roll and big roller in the entrance cavity of die body, position roll minor structure, support big roller with pony roll, bend and carry out in process, the sliding friction entering die orifice violent can be become rolling friction, thus avoid abrading workpiece, improving the quality of workpiece, by arranging baffle plate and gusset, effectively ensureing that roller is not discrete; By being provided with top board and push rod at the bottom of the hole of die body, when making bending beginning, just by top board, enough pressure is applied to blank, and in BENDING PROCESS, make top board not leave the baseplane of blank all the time, terminate until bending, avoid the sidewall occurring bool to slope inwardly or outer Zhang Xianxiang, improve the dimensional accuracy of bool.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-body of punch; 2-blank; 3-die body; 4-top board; 5-push rod; 6-pony roll; 7-big roller; 8-baffle plate; 9-gusset; 10-wearing layer; 30-entrance cavity.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, Fig. 1 is structural representation of the present invention.
Described a kind of bending die, comprise body of punch 1, the blank 2 for brake forming, die body 3, body of punch 1 moves downward contact blank 2, the contact point power effect different due to punch and matrix body and produce moment of flexure, under Moment, there is elastic deformation, produce bending; Described blank 2 contacts with top board 4 all the time in BENDING PROCESS, and the below of described top board 4 connects two push rods 5, and described push rod 5 is connected with die body 3.When making bending beginning, just apply enough pressure by top board 4 pairs of blanks 2, and in BENDING PROCESS, make top board 4 not leave the baseplane of blank 2 all the time, terminate until bending, avoid the sidewall occurring bool to slope inwardly or outer Zhang Xianxiang, improve the dimensional accuracy of bool.
Three pony rolls 6 and a big roller 7 is provided with in the entrance cavity 30 of described die body 3, position roll minor structure, described pony roll 6 is for supporting big roller 7, tangent between described three pony rolls 6, bending carries out in process, the sliding friction entering die orifice violent can be become rolling friction, thus avoid abrading workpiece, improve the quality of workpiece.
The side of described entrance cavity 30 is provided with baffle plate 8, and described baffle plate 8 is tangent with big roller 7; The both sides, upper end of described die body 3 are provided with gusset 9, by arranging baffle plate 8 and gusset 9, effectively ensure pony roll and big roller not discrete.
The lower end of described body of punch 1 is provided with wearing layer 10, and preferably, wearing layer 10 is chromium coating; Preventing because working long hours, damaging body of punch, improve the service life of body of punch.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. a bending die, comprise body of punch (1), the blank (2) for brake forming, die body (3), it is characterized in that: described blank (2) contacts with top board (4) all the time in BENDING PROCESS, the below of described top board (4) connects two push rods (5), and described push rod (5) is connected with die body (3); Three pony rolls (6) and a big roller (7) is provided with in the entrance cavity (30) of described die body (3), described pony roll (6) is for supporting big roller (7), the side of described entrance cavity (30) is provided with baffle plate (8), and described baffle plate (8) is tangent with big roller (7); The both sides, upper end of described die body (3) are provided with gusset (9).
2. a kind of bending die according to claim 1, is characterized in that: the lower end of described body of punch (1) is provided with wearing layer (10).
3. a kind of bending die according to claim 1, is characterized in that: tangent between described three pony rolls (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635139.3A CN104384353A (en) | 2014-11-13 | 2014-11-13 | Bending die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635139.3A CN104384353A (en) | 2014-11-13 | 2014-11-13 | Bending die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104384353A true CN104384353A (en) | 2015-03-04 |
Family
ID=52602364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410635139.3A Pending CN104384353A (en) | 2014-11-13 | 2014-11-13 | Bending die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104384353A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413959A (en) * | 2017-06-29 | 2017-12-01 | 昆山申凌精密金属工业有限公司 | A kind of v-shaped bending mould |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1203991A (en) * | 1967-05-26 | 1970-09-03 | Prec Presswork Co Ltd | Improvements in or relating to the bending of sheet metal |
| CN201088992Y (en) * | 2007-06-28 | 2008-07-23 | 杭宜银 | Double-bending combination die |
| CN201744527U (en) * | 2010-07-26 | 2011-02-16 | 卫华集团有限公司 | Molding tool for bending plate |
| CN102189183A (en) * | 2011-04-11 | 2011-09-21 | 十堰德驰汽车零部件制造有限公司 | Bending die |
| CN202894040U (en) * | 2012-11-15 | 2013-04-24 | 裴锡平 | Wearable tapered steel plate pressing die |
| CN203508785U (en) * | 2013-10-14 | 2014-04-02 | 中国第一汽车股份有限公司 | Roller type forming mould |
| CN103894460A (en) * | 2012-12-30 | 2014-07-02 | 上海奥林汽车配件有限公司 | Device for bending lock catch on car door |
| CN203711628U (en) * | 2014-01-14 | 2014-07-16 | 第一拖拉机股份有限公司 | Thick plate part deep-U-shaped rolling bending die structure |
-
2014
- 2014-11-13 CN CN201410635139.3A patent/CN104384353A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1203991A (en) * | 1967-05-26 | 1970-09-03 | Prec Presswork Co Ltd | Improvements in or relating to the bending of sheet metal |
| CN201088992Y (en) * | 2007-06-28 | 2008-07-23 | 杭宜银 | Double-bending combination die |
| CN201744527U (en) * | 2010-07-26 | 2011-02-16 | 卫华集团有限公司 | Molding tool for bending plate |
| CN102189183A (en) * | 2011-04-11 | 2011-09-21 | 十堰德驰汽车零部件制造有限公司 | Bending die |
| CN202894040U (en) * | 2012-11-15 | 2013-04-24 | 裴锡平 | Wearable tapered steel plate pressing die |
| CN103894460A (en) * | 2012-12-30 | 2014-07-02 | 上海奥林汽车配件有限公司 | Device for bending lock catch on car door |
| CN203508785U (en) * | 2013-10-14 | 2014-04-02 | 中国第一汽车股份有限公司 | Roller type forming mould |
| CN203711628U (en) * | 2014-01-14 | 2014-07-16 | 第一拖拉机股份有限公司 | Thick plate part deep-U-shaped rolling bending die structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107413959A (en) * | 2017-06-29 | 2017-12-01 | 昆山申凌精密金属工业有限公司 | A kind of v-shaped bending mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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: 20150304 |