CN203409128U - Correcting device for preventing pins of lead frame die from skewing - Google Patents
Correcting device for preventing pins of lead frame die from skewing Download PDFInfo
- Publication number
- CN203409128U CN203409128U CN201320434115.2U CN201320434115U CN203409128U CN 203409128 U CN203409128 U CN 203409128U CN 201320434115 U CN201320434115 U CN 201320434115U CN 203409128 U CN203409128 U CN 203409128U
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- CN
- China
- Prior art keywords
- chip
- pin
- lead frame
- correcting device
- pins
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- Expired - Lifetime
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Abstract
The utility model relates to a lead frame die for producing an integrated circuit chip, and in particular relates to a correcting device for preventing pins of a lead frame die from skewing when a product is punched. The correcting device comprises a chip strip; the chip strip is provided with chip pins which are arranged in parallel at intervals and have the same shape; a small stripper plate is arranged above the chip strip; convex reinforced ribs, which coincide with the chip pins, are arranged under the middle part of the small stripper plate; the reinforced ribs and the small stripper plate form a whole body; the reinforced ribs are pressed on the edges of the chip pins on the chip strip. The correcting device has the advantages that the product quality is greatly improved, the skewing degree of the pins can be reduced, the stability of product quality is guaranteed, the production efficiency is greatly increased, and the labor cost is lowered. The correcting device is very wide in application scope, and can be almost used for all multi-pin lead frame dies.
Description
Technical field
The utility model relates to the lead frame mould of producing IC chip, is a kind of when punching product, prevents the apparatus for correcting of pin skew.
Background technology
The production of IC chip, in the process in punching type hole, be carried out plane to type bore region and suppress, and reduces the unstability of the product plane degree performance after stamping-out.In lead frame, pin number is many, spacing is little, minute multistation stamping-out in stamping-out process.In stamping-out process, after pin stamping-out is good, can produce strip vacuum area at material base island periphery, because stamping-out material thickness is only 0.1～0.2mm, so on material can there is corresponding distortion at the good strip vacuum area of punching in pin, and this distortion meeting aggravates along with the increase of number of pin.According to the requirement of product structure and size, in whole stamping-out process, the apparatus for leveling of multistep is set, adjust the deflection of material in stamping-out process.
Currently available technology is after stamping-out finishes, and a step screed step is set before discharging.Because the whole punching in type hole are complete, the skew degree of product can not be effectively adjusted in unified leveling, causes product quality unstable, and production efficiency is low and cost of labor is high, can not meet the user demand in market, has reduced the competitiveness of enterprise in market.Depend on for a long time external import always.
Summary of the invention
Technical problem to be solved in the utility model is: provide the lead frame product mould of a kind of multi-pipe pin, close spacing, to prevent the problem of pin skew.
The technical scheme in the invention for solving the above technical problem is:
Lead frame mould prevents the apparatus for correcting of pin skew, comprises chip band, on chip band, have be arranged in parallel, partition distance and the identical chip pin of shape.Be positioned at chip band top and be provided with little stripper.Below described little stripper middle part, be provided with the muscle of suppressing of the convex that matches with described chip pin, suppress muscle and little stripper structure is integrated.Suppress muscle and be pressed in the edge of the chip pin on chip band.
Described little stripper is the thick elongated plates in Bao, middle part, position, both sides.
On position, little stripper both sides, respectively there are two screws, in a side of middle part, also have two screws.
In little stripper middle part and intersection, position, both sides, be respectively provided with a locating hole.
Compared with prior art, the utility model has the advantage of: improved largely product quality, reduced pin skew degree, guaranteed the stability of product quality, greatly improved production efficiency and reduced cost of labor.This series products scope of application is very wide, is almost used in all multi-pipe pin lead frame moulds.
Accompanying drawing explanation
Fig. 1 is decomposition texture schematic diagram of the present utility model.
Fig. 2 is the floor map of little stripper.
Fig. 3 is the floor map of chip band.
Fig. 4 is the perspective diagram of little stripper when chip band is exerted pressure.
Mark in figure:
1. little stripper, 2. chip band, 3. suppresses muscle, 4. chip pin, 5. screw, 6. locating hole.
The specific embodiment
Below in conjunction with accompanying drawing, structure of the present utility model and operating procedure are described:
Referring to Fig. 1-Fig. 4, the utility model is the apparatus for correcting that lead frame mould prevents pin skew, comprises chip band 2 and the little stripper 1 that is positioned at chip band 2 tops.On described chip band 2, have be arranged in parallel, partition distance and the identical chip pin 4 of shape.Described little stripper 1 is the thick elongated plates in Bao, middle part, position, both sides, and what below middle part, be provided with the convex that matches with described chip pin 4 suppresses muscle 2, suppresses muscle 2 and is integrated with little stripper 1 structure.During operation, suppress the edge that muscle 2 is pressed in the chip pin 4 on chip band 2.On little stripper 1 position, both sides, respectively have two screws 5, also have two screws 5 in a side of middle part, 6 described screws 5 are for being fixed on little stripper 1 discharging panel seat (figure does not draw).In little stripper 1 middle part and intersection, position, both sides, be respectively provided with a locating hole 6, for the location of 2 of little stripper 1 and chip bands.
The utility model is in pin punching process, adds the device that prevents skew, and skew PROBLEM DECOMPOSITION, to each step punching station, is comprehensively reduced to the unstability that pin skew causes.In stamping-out process, under circumferential compressive force effect, probably there is wrinkling in the material flange portion of pin deformed area because of unstability, wrinkling in order to prevent pin front end, pin die cavity stamping-out is complete, uses shaping terrace die that pin front end is flattened.In production, the first step adopts the strong rib structure of little stripper, and the active force applying on pin die cavity deformed area periphery, becomes pressure-pad-force.Like this, material is pressed in die plane, and when stamping-out, workpiece pin flange portion is being suppressed between muscle and die plane and is being reinforced pressure-plate-force, makes the unlikely unstability of workpiece and wrinkling, meanwhile, and because the existence of frictional force can stop the smooth slip of blank.While making like this single step stamping-out, corresponding station material is indeformable.
Complete when pin die cavity stamping-out, use shaping terrace die that pin front end is flattened.During leveling, the projection on punch-die surface and the acting in conjunction of die plane, the pressure-plate-force of reinforcement inner lead portion, the final position degree of assurance lead, prevents pin skew.
During self-feeding stamping-out, little stripper and shaping terrace die acting in conjunction, guarantee that in stamping-out process, overproof skew does not occur product pin.
Claims (4)
1. a lead frame mould prevents the apparatus for correcting of pin skew, comprise chip band (2), on chip band (2), have be arranged in parallel, partition distance and the identical chip pin (4) of shape, it is characterized in that: be positioned at chip band (2) top and be provided with little stripper (1), what in the below of described little stripper (1) middle part, be provided with the convex that matches with described chip pin (4) suppresses muscle (2), suppresses muscle (2) and is integrated with little stripper (1) structure; Suppress muscle (2) and be pressed in the edge of the chip pin (4) on chip band (2).
2. apparatus for correcting according to claim 1, is characterized in that: described little stripper (1) is the thick elongated plates in Bao, middle part, position, both sides.
3. apparatus for correcting according to claim 2, is characterized in that: on little stripper (1) position, both sides, respectively have two screws (5), also have two screws (5) in a side of middle part.
4. according to the apparatus for correcting described in claim 2 or 3, it is characterized in that: in little stripper (1) middle part and intersection, position, both sides, be respectively provided with a locating hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434115.2U CN203409128U (en) | 2013-07-19 | 2013-07-19 | Correcting device for preventing pins of lead frame die from skewing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320434115.2U CN203409128U (en) | 2013-07-19 | 2013-07-19 | Correcting device for preventing pins of lead frame die from skewing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203409128U true CN203409128U (en) | 2014-01-29 |
Family
ID=49972056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320434115.2U Expired - Lifetime CN203409128U (en) | 2013-07-19 | 2013-07-19 | Correcting device for preventing pins of lead frame die from skewing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203409128U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026091A (en) * | 2017-05-16 | 2017-08-08 | 杰群电子科技（东莞）有限公司 | A kind of production process of semiconductor and device |
| CN112474947A (en) * | 2020-12-26 | 2021-03-12 | 安徽中巨机电设备有限公司 | Clamping fixture for skewing at aluminum pipe bending part |
-
2013
- 2013-07-19 CN CN201320434115.2U patent/CN203409128U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107026091A (en) * | 2017-05-16 | 2017-08-08 | 杰群电子科技（东莞）有限公司 | A kind of production process of semiconductor and device |
| CN112474947A (en) * | 2020-12-26 | 2021-03-12 | 安徽中巨机电设备有限公司 | Clamping fixture for skewing at aluminum pipe bending part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160422 Address after: 315105 No. 988 Jin Yuan Road, Yinzhou District investment center, Zhejiang, Ningbo Patentee after: NINGBO KANGQIANG ELECTRONICS Co.,Ltd. Address before: 100094, No. 2, building 7, Feng Yin Middle Road, Yongfeng, Zhongguancun, Beijing, Haidian District Patentee before: BEIJING KDPR TOOL TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190125 Address after: 315100 Jinyuan Road 988, Panhuo Street, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: NINGBO KDPR TOOL TECHNOLOGY Co.,Ltd. Address before: 315105 Jinyuan Road 988, Investment and Entrepreneurship Center, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: NINGBO KANGQIANG ELECTRONICS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |