CN104209409B - Lead frame diel - Google Patents
Lead frame diel Download PDFInfo
- Publication number
- CN104209409B CN104209409B CN201410443667.9A CN201410443667A CN104209409B CN 104209409 B CN104209409 B CN 104209409B CN 201410443667 A CN201410443667 A CN 201410443667A CN 104209409 B CN104209409 B CN 104209409B
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- China
- Prior art keywords
- punch
- guide pin
- pin
- locating pin
- stripper
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Abstract
The invention discloses a kind of lead frame diel, comprise punch, be positioned at the stripper below punch, be positioned at the die below stripper, punch is provided with some locating pins for round orifices orientation, stripper offers the perforation of passing for locating pin, punch offers some mounting grooves, spring is provided with in mounting groove, the bottom of spring is connected with the upper end of locating pin, the upper end of spring is fixedly connected by plug screw and punch, die offers and somely dodges hole for what dodge locating pin, being positioned at the first locating pin is tapering guide pin, its bottom has the gradually large conical location division of gradual change from the bottom to top, the aperture of punching press circular hole is greater than the minimum diameter of location division and is less than the maximum gauge of location division, other locating pin is direct insertion guide pin, by adopting the first tapering guide pin, all the other adopt the mode of direct insertion guide pin to position, accurate positioning can be ensured, can ensure again can not produce interference between guide pin, improve processing precision of products.
Description
Technical field
The present invention relates to a kind of lead frame diel.
Background technology
Current lead frame diel all adopts direct insertion guide pin to carry out round orifices orientation, if mould all adopts direct insertion guide pin, because direct insertion guide pin and the monolateral gap of product circular hole reach 0.005mm, gap 0.002mm monolateral with little stripper, add mismachining tolerance and rigging error, be reacted to tolerance on product and can reach ± 0.05mm, do not reach processing request, and zero clearance between tapering guide pin and material, can be reached, although accurate positioning, but if mould all adopts tapering guide pin, each hole and material are zero clearances in theory, but actual and theory differs greatly, because Mould Machining itself exists mismachining tolerance and rigging error, it is not 100% cooperation, if all with tapering guide pin mutually between will there is interference, product circular hole may be caused to be out of shape.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, a kind of lead frame diel is provided, improve machining accuracy.
For achieving the above object, technical scheme of the present invention there is provided a kind of lead frame diel, comprise punch, be positioned at the stripper below described punch, be positioned at the die below described stripper, described punch is provided with some locating pins for round orifices orientation, described stripper offers the perforation of passing for described locating pin, described punch offers some mounting grooves, spring is provided with in described mounting groove, the bottom of described spring is connected with the upper end of described locating pin, the upper end of described spring is fixedly connected by plug screw and described punch, described die offers and somely dodges hole for what dodge described locating pin, being positioned at the first described locating pin is tapering guide pin, its bottom has the gradually large conical location division of gradual change from the bottom to top, the aperture of punching press circular hole is greater than the minimum diameter of described location division and is less than the maximum gauge of described location division, locating pin described in other is direct insertion guide pin.
As preferably, the described aperture of dodging hole is greater than the aperture of described perforation.
As preferably, the contact point of described tapering guide pin and punching press circular hole bottom and between itself and the contact point on punching press circular hole top, there is the first lateral separation, described tapering guide pin has the second lateral separation to the hole medial surface of dodging of the contact point on punching press circular hole top and the described of corresponding side, and the first described lateral separation is identical with the second described lateral separation.
Advantage of the present invention and beneficial effect are: by adopting the first tapering guide pin, all the other adopt the mode of direct insertion guide pin to position, and can ensure accurate positioning, can ensure again can not produce interference between guide pin, improve processing precision of products.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the A place enlarged drawing of Fig. 1.
Wherein: 1, punch; 2, stripper; 3, die; 4, bore a hole; 5, spring; 6, plug screw; 7, hole is dodged; 8, tapering guide pin; 9, direct insertion guide pin.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of lead frame diel, comprise punch 1, be positioned at the stripper 2 below described punch 1, be positioned at the die 3 below described stripper 2, described punch 1 is provided with some locating pins for round orifices orientation, described stripper 2 offers the perforation 4 of passing for described locating pin, described punch 1 offers some mounting grooves, spring 5 is provided with in described mounting groove, the bottom of described spring 5 is connected with the upper end of described locating pin, the upper end of described spring 5 is fixedly connected by plug screw 6 and described punch 1, described die 3 offers and somely dodges hole 7 for what dodge described locating pin, being positioned at the first described locating pin is tapering guide pin 8, its bottom has the gradually large conical location division of gradual change from the bottom to top, the aperture of punching press circular hole is greater than the minimum diameter of described location division and is less than the maximum gauge of described location division, locating pin described in other is direct insertion guide pin 9, the described aperture of dodging hole 7 is greater than the aperture of described perforation 4.
Direction flange is there is when circular hole punching press in order to prevent product, the scheme optimized in the present embodiment is, the contact point of described tapering guide pin 8 and punching press circular hole bottom and between itself and the contact point on punching press circular hole top, there is the first lateral separation, described tapering guide pin 8 has the second lateral separation to hole 7 medial surface of dodging of the contact point on punching press circular hole top and the described of corresponding side, and the first described lateral separation is identical with the second described lateral separation.
Operation principle: by adopting the first tapering guide pin 8, all the other adopt the mode of direct insertion guide pin 9 to position, and can ensure accurate positioning, can ensure again can not produce interference between guide pin.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (3)
1. a lead frame diel, it is characterized in that: comprise punch, be positioned at the stripper below described punch, be positioned at the die below described stripper, described punch is provided with some locating pins for punching press round orifices orientation, described stripper offers the perforation of passing for described locating pin, described punch offers some mounting grooves, spring is provided with in described mounting groove, the bottom of described spring is connected with the upper end of described locating pin, the upper end of described spring is fixedly connected by plug screw and described punch, described die offers and somely dodges hole for what dodge described locating pin, being positioned at the first described locating pin is tapering guide pin, its bottom has the gradually large conical location division of gradual change from the bottom to top, the aperture of punching press circular hole is greater than the minimum diameter of described location division and is less than the maximum gauge of described location division, locating pin described in other is direct insertion guide pin.
2. lead frame diel as claimed in claim 1, is characterized in that: the described aperture of dodging hole is less than the aperture of described perforation.
3. lead frame diel as claimed in claim 2, it is characterized in that: the contact point of described tapering guide pin and punching press circular hole bottom and between itself and the contact point on punching press circular hole top, there is the first lateral separation, described tapering guide pin has the second lateral separation to the hole medial surface of dodging of the contact point on punching press circular hole top and the described of corresponding side, and the first described lateral separation is identical with the second described lateral separation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443667.9A CN104209409B (en) | 2014-09-03 | 2014-09-03 | Lead frame diel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410443667.9A CN104209409B (en) | 2014-09-03 | 2014-09-03 | Lead frame diel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104209409A CN104209409A (en) | 2014-12-17 |
| CN104209409B true CN104209409B (en) | 2016-03-30 |
Family
ID=52091540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410443667.9A Active CN104209409B (en) | 2014-09-03 | 2014-09-03 | Lead frame diel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104209409B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0386491A (en) * | 1989-08-31 | 1991-04-11 | Pentel Kk | Method and device for detecting defective work insertion to die by robot |
| CN101259506A (en) * | 2008-04-29 | 2008-09-10 | 天津理工大学 | Elastic floating circular conical surface pilot pin upgrading mould feeding precision positioning device |
| CN201988645U (en) * | 2010-10-20 | 2011-09-28 | 上海华普汽车有限公司 | High-precision tipping machine positioning mechanism |
| CN202893969U (en) * | 2012-11-16 | 2013-04-24 | 昆明富尔诺林科技发展有限公司 | Ring stamping die |
| CN204122600U (en) * | 2014-09-03 | 2015-01-28 | 江阴康强电子有限公司 | Lead frame diel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8950233B2 (en) * | 2012-05-29 | 2015-02-10 | Standard Lifters, Inc. | Shoulder pilot assembly with self-contained stripper and method for metal forming dies |
-
2014
- 2014-09-03 CN CN201410443667.9A patent/CN104209409B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0386491A (en) * | 1989-08-31 | 1991-04-11 | Pentel Kk | Method and device for detecting defective work insertion to die by robot |
| CN101259506A (en) * | 2008-04-29 | 2008-09-10 | 天津理工大学 | Elastic floating circular conical surface pilot pin upgrading mould feeding precision positioning device |
| CN201988645U (en) * | 2010-10-20 | 2011-09-28 | 上海华普汽车有限公司 | High-precision tipping machine positioning mechanism |
| CN202893969U (en) * | 2012-11-16 | 2013-04-24 | 昆明富尔诺林科技发展有限公司 | Ring stamping die |
| CN204122600U (en) * | 2014-09-03 | 2015-01-28 | 江阴康强电子有限公司 | Lead frame diel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104209409A (en) | 2014-12-17 |
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Effective date of registration: 20210929 Address after: No. 988, Jinyuan Road, Yinzhou investment and entrepreneurship center, Ningbo City, Zhejiang Province, 315105 Patentee after: NINGBO KANGQIANG ELECTRONICS Co.,Ltd. Address before: 214400 No. 3, Dongding Road, Jiangyin Economic Development Zone, Wuxi City, Jiangsu Province Patentee before: JIANGYIN KANGQIANG ELECTRONIC Co.,Ltd. |
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| TR01 | Transfer of patent right |