CN202239174U - Device for cutting off connection rib between outer pins of lead frame - Google Patents
Device for cutting off connection rib between outer pins of lead frame Download PDFInfo
- Publication number
- CN202239174U CN202239174U CN2011203174276U CN201120317427U CN202239174U CN 202239174 U CN202239174 U CN 202239174U CN 2011203174276 U CN2011203174276 U CN 2011203174276U CN 201120317427 U CN201120317427 U CN 201120317427U CN 202239174 U CN202239174 U CN 202239174U
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- CN
- China
- Prior art keywords
- lead frame
- cutting
- utility
- model
- connection rib
- 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.)
- Expired - Fee Related
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- Lead Frames For Integrated Circuits (AREA)
Abstract
The utility model discloses a device for cutting off a connection rib between outer pins of a lead frame. The device comprises a chip collecting cavity and a supporting table, wherein the supporting table is arranged above the chip collecting cavity, a plurality of front locating teeth and back locating teeth are symmetrical and are respectively arranged on two sides of the supporting table, a front channel for operation of a punch is arranged between each two adjacent front locating teeth, and a back channel for operation of the punch is arranged between each two adjacent front locating teeth. The device for cutting off the connection rib between the outer pins of the lead frame, disclosed by the utility model, can effectively prevent a blocking situation and improve the working efficiency.
Description
Technical field
The utility model relates to a kind of device that is used to cut the dowel between the outer pin on the lead frame.
Background technology
Lead frame is as the chip carrier of integrated circuit; Be a kind of being electrically connected by means of bonding gold wire realization chip internal circuit exit and outer lead; Form the key structure spare of electric loop, it has played the function served as bridge that is connected with outer lead, all need use lead frame in the semiconductor integrated package of the overwhelming majority; Thereby lead frame is a basic material important in the electronics and information industry.
The lead frame product type has TO, DIP, ZIP, SIP, SOP, SSOP, QFP (QFJ), SOD, SOT etc.Mainly produce with mould pressing and chemical etching method.
The existing device that is used to cut the dowel between the outer pin on the lead frame exists easy obstruction, inefficient problem.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of prior art, and a kind of device that is used to cut the dowel between the outer pin on the lead frame is provided, and it can prevent clogging to have improved operating efficiency effectively.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model provides a kind of device that is used to cut the dowel between the outer pin on the lead frame; Comprise and receive the bits chamber; And be positioned at the brace table of receiving top, bits chamber; The both sides of said brace table are respectively arranged with symmetrical a plurality of prelocalization teeth and back positioning tooth, form to supply the prepass of drift work between adjacent two prelocalization teeth, form the back passage that supplies drift work between the positioning tooth after adjacent two.
Prepass top is narrow, the bottom is wide, and back passage top is narrow, the bottom is wide.
The dowel chip of the lead frame that the utility model make to downcut can be arranged in the receipts bits chamber easily, has prevented phenomenon of blocking effectively, has improved operating efficiency.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
As shown in Figure 1; The utility model provides a kind of device that is used to cut the dowel between the outer pin on the lead frame; Comprise and receive bits chamber 1, and be positioned at the brace table 2 of receiving top, bits chamber, the both sides of said brace table are respectively arranged with symmetrical a plurality of prelocalization teeth 3 and back positioning tooth 4; Form to supply the prepass 5 of drift work between adjacent two prelocalization teeth, form the back passage 6 that supplies drift work between the positioning tooth after adjacent two.
Prepass top is narrow, the bottom is wide, and back passage top is narrow, the bottom is wide.
The dowel chip of the lead frame that the utility model make to downcut can be arranged in the receipts bits chamber easily, has prevented phenomenon of blocking effectively, has improved operating efficiency.
What should explain at last is: obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not qualification to embodiment.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being amplified out thus or change still are among the protection domain of the utility model.
Claims (2)
1. device that is used to cut the dowel between the outer pin on the lead frame; It is characterized in that: comprise and receive the bits chamber; And be positioned at the brace table of receiving top, bits chamber; The both sides of said brace table are respectively arranged with symmetrical a plurality of prelocalization teeth and back positioning tooth, form to supply the prepass of drift work between adjacent two prelocalization teeth, form the back passage that supplies drift work between the positioning tooth after adjacent two.
2. the device that is used to cut the dowel between the outer pin on the lead frame as claimed in claim 1 is characterized in that: prepass top is narrow, the bottom is wide, and back passage top is narrow, the bottom is wide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203174276U CN202239174U (en) | 2011-08-29 | 2011-08-29 | Device for cutting off connection rib between outer pins of lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203174276U CN202239174U (en) | 2011-08-29 | 2011-08-29 | Device for cutting off connection rib between outer pins of lead frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239174U true CN202239174U (en) | 2012-05-30 |
Family
ID=46100477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203174276U Expired - Fee Related CN202239174U (en) | 2011-08-29 | 2011-08-29 | Device for cutting off connection rib between outer pins of lead frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896201A (en) * | 2012-10-16 | 2013-01-30 | 杭州美卡乐光电有限公司 | Lower die tool, lower die base, support locating method and trimming die and method |
| CN107671167A (en) * | 2017-11-24 | 2018-02-09 | 中山复盛机电有限公司 | Punching press is flattened to prevent the method for punching plug bits |
-
2011
- 2011-08-29 CN CN2011203174276U patent/CN202239174U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896201A (en) * | 2012-10-16 | 2013-01-30 | 杭州美卡乐光电有限公司 | Lower die tool, lower die base, support locating method and trimming die and method |
| CN102896201B (en) * | 2012-10-16 | 2015-04-01 | 杭州美卡乐光电有限公司 | Lower die tool, trimming tool, lower die base, support locating method and trimming die and method |
| CN107671167A (en) * | 2017-11-24 | 2018-02-09 | 中山复盛机电有限公司 | Punching press is flattened to prevent the method for punching plug bits |
| CN107671167B (en) * | 2017-11-24 | 2019-07-02 | 中山复盛机电有限公司 | The method that punching press is flattened to prevent punching plug bits |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120829 |