CN103920790A - Burr-free punching die capable of effectively preventing unilateral punching pressure - Google Patents

Burr-free punching die capable of effectively preventing unilateral punching pressure Download PDF

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Publication number
CN103920790A
CN103920790A CN201410104834.7A CN201410104834A CN103920790A CN 103920790 A CN103920790 A CN 103920790A CN 201410104834 A CN201410104834 A CN 201410104834A CN 103920790 A CN103920790 A CN 103920790A
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CN
China
Prior art keywords
drift
punch
die
burr
alignment 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
Application number
CN201410104834.7A
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Chinese (zh)
Inventor
李川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Longquanyi District Chengdu Qi Sheng Machinery Plant
Original Assignee
Longquanyi District Chengdu Qi Sheng Machinery Plant
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Longquanyi District Chengdu Qi Sheng Machinery Plant filed Critical Longquanyi District Chengdu Qi Sheng Machinery Plant
Priority to CN201410104834.7A priority Critical patent/CN103920790A/en
Publication of CN103920790A publication Critical patent/CN103920790A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a burr-free punching die capable of effectively preventing unilateral punching pressure. A pressure plate (6) is arranged on a male die (3), at least one positioning pin (7) is symmetrically mounted at two ends of the pressure plate (6), the length of each positioning pin (7) is larger than that of a punch (5), and a female die (4) is provided with positioning holes (8); a first electroplating processing layer (9) high in surface smoothness coats the outer edge of the punch (5), and a second electroplating processing layer (11) coats the inner edge of a tool edge portion. The upper and lower dies are accurately positioned through the positioning pins and the positioning holes, accurate guidance of the upper and lower dies can be guaranteed, forming effect of the product can be effectively guaranteed, and unilateral punching pressure and unilateral transitional abrasion can be avoided; lower ends of the positioning pins are chamfered into circular or oblique beads, so that a correction function can be effectively achieved in case guidance errors between the upper and lower dies are smaller; the punch and the surface of the tool edge portion of the female die are subjected to electroplating process, surface smoothness is improved, and burrs generated from punching can be effectively prevented.

Description

Can effectively prevent monolateral scrape without burr diel
Technical field
The present invention relates to field of machining, particularly relate to a kind of can effectively prevent monolateral scrape without burr diel.
Background technology
Punch process in machining occupies an important position in the processing industry of national economy.Adopt Sheet Metal Forming Technology, have that precision is high, efficiency is high, quality is good, save material, low cost and other advantages.Diel, is in Cold Press Working, material (metal or nonmetal) is processed into a kind of special process equipment of part (or semi-finished product), is called cold punching die (being commonly called as cold-punching mould).Punching press, is at room temperature, utilizes the mould being arranged on forcing press to exert pressure to material, makes it produce separation or plastic deformation, thereby obtains a kind of pressure processing method of required part.Diel is the requisite technological equipment of punching production, is technology-intensive product.The quality of stamping parts, production efficiency and production cost etc., have direct relation with the Design and manufacture of mould.The height of Design of Dies and manufacturing technology level, is one of important symbol of weighing a national product manufacture level height, is determining to a great extent the development ability of quality, benefit and the new product of product.
Because upper and lower mould guiding accuracy in punching course exists error, will inevitably there is certain deviation in the cooperation between drift and die opening (blade portion), if there is drift and die dislocation, this can directly affect the molding effect of product unavoidably, while even causing drift punching press there is monolateral scraping and the situation of monolateral inordinate wear in drift and die opening, directly affects the service life of diel.
In addition, due to technical restriction, the fineness on drift and die blade portion surface is not high enough, there will be burr while causing punching parts, often need to do over again and could remove burr through secondary, and formed product weak effect, production efficiency is low.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of novel can effectively prevent monolateral scrape without burr diel, before drift punching press enters die, utilizing alignment pin and locating hole to coordinate first accurately locates and corrects upper and lower mould, guarantee the accurate guiding of upper and lower mould when drift punching press enters die, ensure formed product effect, avoid drift and die to occur monolateral scraping and the situation of monolateral inordinate wear, the service life of raising mould simultaneously; Drift and die blade portion surface are carried out to electroplating processes, improve drift and die blade portion surface smoothness, prevent that punching press burr from producing.
The object of the invention is to be achieved through the following technical solutions: can effectively prevent monolateral scrape without burr diel, comprise upper bolster and die shoe, on upper bolster, be provided with punch, on die shoe, be provided with the die matching with punch, punch below is provided with drift, the center of die is provided with the blade portion matching with drift, and blade portion below is material-dropping hole; On described punch, be also provided with the pressing plate for punching press flanging, pressing plate is arranged at drift top, and the two ends of pressing plate are symmetrically installed with at least one alignment pin, and alignment pin is perpendicular to pressing plate setting, the length of alignment pin is greater than the length of drift, is provided with the locating hole matching with alignment pin on die; The outer ledge of described drift is coated with the first electroplating processes layer of high surface finish, and the inside edge of blade portion is coated with the second electroplating processes layer of high surface finish.
Fall as fillet the lower end of described alignment pin.
Inwardly there is oblique angle the lower end of described alignment pin.
The length that the degree of depth of described locating hole is more than or equal to alignment pin cuts off part thickness.
Described pressing plate, drift and punch adopt integrated molding structure.
The invention has the beneficial effects as follows:
1) before drift punching press enters die, utilizing alignment pin and locating hole to coordinate first accurately locates upper and lower mould, guarantee the accurate guiding of upper and lower mould when drift punching press enters die, can effective guarantee formed product effect, can effectively avoid that drift and die appearance are monolateral to be scraped and the situation of monolateral inordinate wear, the service life of having improved mould simultaneously;
2) fall as fillet or oblique angle the lower end of alignment pin, can be between upper and lower mould steering error hour play effective correcting, guarantee the accurate guiding of upper and lower mould when drift punching press enters die;
3) pressing plate, drift and punch adopt integrated molding structure, simple in structure, easy to process and have good stability, and are difficult for occurring deformation;
4) drift and die blade portion surface are carried out to electroplating processes, effectively improved the surface smoothness of drift and die blade portion, can effectively prevent that punching press burr from producing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
In figure, 1-upper bolster, 2-die shoe, 3-punch, 4-die, 5-drift, 6-pressing plate, 7-alignment pin, 8-locating hole, 9-the first electroplating processes layer, 10-material-dropping hole, 11-the second electroplating processes layer.
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, can effectively prevent monolateral scrape without burr diel, comprise upper bolster 1 and die shoe 2, on upper bolster 1, be provided with punch 3, on die shoe 2, be provided with the die 4 matching with punch 3, punch 3 belows are provided with drift 5, and the center of die 4 is provided with the blade portion matching with drift 5, and blade portion below is material-dropping hole 10; On described punch 3, be also provided with the pressing plate 6 for punching press flanging, pressing plate 6 is arranged at drift 5 tops, the two ends of pressing plate 6 are symmetrically installed with at least one alignment pin 7, alignment pin 7 arranges perpendicular to pressing plate 6, the length of alignment pin 7 is greater than the length of drift 5, thereby guarantee that alignment pin 7 has compressed the upper surface of die 4 or inserted locating hole 8 before drift 5 stamping cavity dies 4, this is the prerequisite that realizes auxiliary positioning; The length that the degree of depth of described locating hole 8 is more than or equal to alignment pin 7 cuts off part thickness, to guarantee can not make whole mould cannot continue punching press because of the bottom that locating hole 8 is too shallow, alignment pin 7 compresses locating hole 8 in punching course.On die 4, be provided with the locating hole 8 matching with alignment pin 7; The outer ledge of described drift 5 is coated with the first electroplating processes layer 9 of high surface finish, the inside edge of blade portion is coated with the second electroplating processes layer 11 of high surface finish, the surface smoothness that improves drift 5 and die blade portion through electroplating processes, prevents the generation of punching burr, burr.
As preferably, in the present embodiment, the lower end of alignment pin 7 is fallen as fillet or inwardly has oblique angle, can be between upper and lower mould steering error hour play effective correcting, guarantee the accurate guiding of upper and lower mould when drift 5 punching presses enter die 4.
As preferably, in the present embodiment, alignment pin 7 adopts high strength, the material of easy fracture is not made.
As preferably, in the present embodiment, alignment pin 7 is arranged at the high order end of pressing plate 6 and the rightest section as far as possible, and the setting principle of alignment pin 7 is not affect normally putting, processing of part.
As preferably, the present embodiment center platen 6, drift 5 and punch 3 adopt integrated molding structures.
The above is only the preferred embodiment of the present invention, be to be understood that the present invention is not limited to disclosed form herein, should not regard the eliminating to other embodiment as, and can be used for various other combinations, modification and environment, and can, in contemplated scope described herein, by technology or the knowledge of above-mentioned instruction or association area, change.And the change that those skilled in the art carry out and variation do not depart from the spirit and scope of the present invention, all should be in the protection domain of claims of the present invention.

Claims (5)

1. can effectively prevent monolateral scrape without burr diel, comprise upper bolster (1) and die shoe (2), on upper bolster (1), be provided with punch (3), on die shoe (2), be provided with the die (4) matching with punch (3), punch (3) below is provided with drift (5), the center of die (4) is provided with the blade portion matching with drift (5), and blade portion below is material-dropping hole (10); It is characterized in that: on described punch (3), be also provided with the pressing plate (6) for punching press flanging, pressing plate (6) is arranged at drift (5) top, the two ends of pressing plate (6) are symmetrically installed with at least one alignment pin (7), alignment pin (7) arranges perpendicular to pressing plate (6), the length of alignment pin (7) is greater than the length of drift (5), is provided with the locating hole (8) matching with alignment pin (7) on die (4); The outer ledge of described drift (5) is coated with the first electroplating processes layer (9) of high surface finish, and the inside edge of blade portion is coated with the second electroplating processes layer (11) of high surface finish.
According to claim 1 can effectively prevent monolateral scrape without burr diel, it is characterized in that: fall as fillet the lower end of described alignment pin (7).
According to claim 1 can effectively prevent monolateral scrape without burr diel, it is characterized in that: inwardly there is oblique angle the lower end of described alignment pin (7).
According to claim 1 can effectively prevent monolateral scrape without burr diel, it is characterized in that: the length that the degree of depth of described locating hole (8) is more than or equal to alignment pin (7) cuts off part thickness.
According to claim 1 can effectively prevent monolateral scrape without burr diel, it is characterized in that: described pressing plate (6), drift (5) and punch (3) adopt integrated molding structure.
CN201410104834.7A 2014-03-20 2014-03-20 Burr-free punching die capable of effectively preventing unilateral punching pressure Pending CN103920790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410104834.7A CN103920790A (en) 2014-03-20 2014-03-20 Burr-free punching die capable of effectively preventing unilateral punching pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410104834.7A CN103920790A (en) 2014-03-20 2014-03-20 Burr-free punching die capable of effectively preventing unilateral punching pressure

Publications (1)

Publication Number Publication Date
CN103920790A true CN103920790A (en) 2014-07-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105127272A (en) * 2015-09-30 2015-12-09 苏州索力旺新能源科技有限公司 High-precision connection point punching and breaking device
CN108176769A (en) * 2018-02-07 2018-06-19 苏州市天星山精密模具有限公司 A kind of high-intensity and high-tenacity stamping die
CN110586744A (en) * 2019-08-27 2019-12-20 昆山精诚得精密五金模具有限公司 Continuous stamping die of automobile alternating current generator cover

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS521971A (en) * 1975-06-24 1977-01-08 Iwao Ogiwara Apparatus for removing a sticked matter on an inside surface of a stor ehouse wall or a tank wall
CN201728283U (en) * 2010-05-13 2011-02-02 福州鑫威电器有限公司 Die for punching and trimming flexible-connection copper strip
JP2012513597A (en) * 2008-12-23 2012-06-14 コミッサリア ア レネルジ アトミック エ オー エネルジス アルテルナティヴス Apparatus and method for mounting components flat in a ring
CN202701178U (en) * 2012-07-17 2013-01-30 郑州日产汽车有限公司 Automatic centering guide device of die
CN202715697U (en) * 2012-07-17 2013-02-06 武汉中航精冲技术有限公司 Die capable of removing burr of small holes
CN202894040U (en) * 2012-11-15 2013-04-24 裴锡平 Wearable tapered steel plate pressing die
CN203091558U (en) * 2013-03-21 2013-07-31 瑞安市车辆配件厂 Punch forming die
CN103286201A (en) * 2013-06-29 2013-09-11 苏州唐氏机械制造有限公司 Wear-proof stamping mould
CN103386442A (en) * 2013-08-19 2013-11-13 太仓斯普宁精密机械有限公司 Non-burr punching die
CN103406451A (en) * 2013-08-16 2013-11-27 昆山西诺巴精密模具有限公司 Wear-prevention stamping die

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS521971A (en) * 1975-06-24 1977-01-08 Iwao Ogiwara Apparatus for removing a sticked matter on an inside surface of a stor ehouse wall or a tank wall
JP2012513597A (en) * 2008-12-23 2012-06-14 コミッサリア ア レネルジ アトミック エ オー エネルジス アルテルナティヴス Apparatus and method for mounting components flat in a ring
CN201728283U (en) * 2010-05-13 2011-02-02 福州鑫威电器有限公司 Die for punching and trimming flexible-connection copper strip
CN202701178U (en) * 2012-07-17 2013-01-30 郑州日产汽车有限公司 Automatic centering guide device of die
CN202715697U (en) * 2012-07-17 2013-02-06 武汉中航精冲技术有限公司 Die capable of removing burr of small holes
CN202894040U (en) * 2012-11-15 2013-04-24 裴锡平 Wearable tapered steel plate pressing die
CN203091558U (en) * 2013-03-21 2013-07-31 瑞安市车辆配件厂 Punch forming die
CN103286201A (en) * 2013-06-29 2013-09-11 苏州唐氏机械制造有限公司 Wear-proof stamping mould
CN103406451A (en) * 2013-08-16 2013-11-27 昆山西诺巴精密模具有限公司 Wear-prevention stamping die
CN103386442A (en) * 2013-08-19 2013-11-13 太仓斯普宁精密机械有限公司 Non-burr punching die

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105127272A (en) * 2015-09-30 2015-12-09 苏州索力旺新能源科技有限公司 High-precision connection point punching and breaking device
CN108176769A (en) * 2018-02-07 2018-06-19 苏州市天星山精密模具有限公司 A kind of high-intensity and high-tenacity stamping die
CN110586744A (en) * 2019-08-27 2019-12-20 昆山精诚得精密五金模具有限公司 Continuous stamping die of automobile alternating current generator cover
CN110586744B (en) * 2019-08-27 2021-03-23 昆山精诚得精密五金模具有限公司 Continuous stamping die of automobile alternating current generator cover

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Application publication date: 20140716