CN203812854U - Compression device for preventing vibration of lead frame - Google Patents
Compression device for preventing vibration of lead frame Download PDFInfo
- Publication number
- CN203812854U CN203812854U CN201420239880.3U CN201420239880U CN203812854U CN 203812854 U CN203812854 U CN 203812854U CN 201420239880 U CN201420239880 U CN 201420239880U CN 203812854 U CN203812854 U CN 203812854U
- Authority
- CN
- China
- Prior art keywords
- hole
- lead frame
- connecting rod
- screw
- transmission shaft
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a compression device for preventing the vibration of a lead frame, which comprises a base, a connecting rod (1), a fixed rod (2), a transmission shaft (3) and a pinch roller (4). The longer edge of an L-shaped plate (6) is perpendicular to a bottom plate (5) and is arranged on the bottom plate (5). The shorter edge of the L-shaped plate (6) is provided with a bearing hole (7). The side surface of the connecting rod (1) is provided with a through hole I (8) and a through hole II (9). The top of the connecting rod (1) is provided with a threaded hole I (10) and a threaded hole II (11). The transmission shaft (3) is configured to pass through the bearing hole (7) and the through hole I (8) in turn. The threaded hole I (10) is internally connected with a screw and the screw is pressed against the transmission shaft (3). The fixed rod (2) is configured to pass through the through hole II (9). The threaded hole II (11) is internally connected with a screw and the screw is pressed against the fixed rod (2). The compression device provided by the utility model has the advantages of low product reject rate and low production cost. Meanwhile, the compression device facilitates the operation of works and improves the production efficiency.
Description
Technical field
The utility model relates to used in electronic industry lead frame processing technique field, particularly a kind of hold down gag that prevents lead frame vibration.
Background technology
At present, because SOT-23 encapsulating lead is disk type, material soft and its on offer towing pad, for obtaining needed electronic product, send in bonding equipment after need to lead frame section and weld.
At present, most domestic electronic enterprise is installed in bonding equipment left end by slicing device, when slicing device is by after lead frame section, by index pin type haulage gear, sink in the index hole on lead frame again, thereby will draw framework by haulage gear, draw to bonding equipment high-temperature soldering region, finally complete again bonding wire operation.Yet, slicing device can produce larger mechanical shock when cutting lead frame, after slicing device completes cutting action, lead frame can produce the displacement on directions X in this mechanical shock process, and then make follow-up index pin type haulage gear cannot aim at the index hole on lead frame in the action of sinking, cause the softer lead frame of material to be extruded distortion, the phenomenon that finally causes card, make product rejection, to bring so following two negative effects: (1) causes product rejection loss, has increased cost; (2) card is scrapped and is made technical staff's treatment facility fault of having to take time, and reduces workman's production efficiency.
Utility model content
The purpose of this utility model is to overcome the shortcoming of prior art, provide a kind of simple in structure, product rejection rate is low, production cost is low, facilitate the hold down gag that prevents lead frame vibration that workman operates, enhances productivity.
The purpose of this utility model is achieved through the following technical solutions: a kind of hold down gag that prevents lead frame vibration, it comprises support, connecting rod, fixed lever, power transmission shaft and pinch roller, pinch roller is arranged on fixed lever, support is comprised of base plate and L plate, the long limit of L plate is perpendicular to base plate and be arranged on base plate, on the minor face of L plate, be provided with dead eye, on the side of connecting rod, be provided with through hole I and through hole II, through hole I and through hole II are positioned at the two ends of connecting rod, the top of connecting rod is provided with screwed hole I and screwed hole II, screwed hole I and screwed hole II are communicated with through hole I and through hole II respectively, power transmission shaft is successively through dead eye and through hole I, in screwed hole I, being connected with screw and screw is pressed on power transmission shaft, fixed lever is through through hole II, in screwed hole II, be connected with screw and screw is pressed on fixed lever.
On described base plate, be provided with a plurality of installing holes.
Two bearings are installed in described dead eye, and two bearings are installed on power transmission shaft.
Described screwed hole I is identical with the nominal diameter of screwed hole II.
The diameter of described through hole I is greater than through hole II.
It also comprises plug ring and adapter sleeve, and described plug ring is arranged in through hole I, and described adapter sleeve is arranged on fixed lever, and connecting rod is arranged between adapter sleeve and pinch roller.
The rectangular shape of described connecting rod.
The utlity model has following advantage: power transmission shaft of the present utility model is successively through dead eye and through hole I, in screwed hole I, being connected with screw and screw is pressed on power transmission shaft, fixed lever is through through hole II, in screwed hole II, being connected with screw and screw is pressed on fixed lever, use before this device, base plate is arranged between slicing device and index pin type haulage gear, when slicing device is by after lead frame cutting, rotating drive shaft makes pinch roller push down the lead frame after cutting, lead frame is under the gravity of pinch roller self and the effect of power transmission shaft torque, lead frame can not produce the displacement on directions X because of mechanical shock, thereby index pin type haulage gear is the accurate index hole of aiming on lead frame in the action of sinking, avoided the softer lead frame of material to be extruded distortion, thereby reduced product rejection rate, improved production efficiency, thereby owing to there will not be the phenomenon of card without spended time handling failure.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 1;
In figure, 1-connecting rod, 2-fixed lever, 3-power transmission shaft, 4-pinch roller, 5-base plate, 6-L plate, 7-dead eye, 8-through hole I, 9-through hole II, 10-screwed hole I, 11-screwed hole II, 12-installing hole, 13-plug ring, 14-adapter sleeve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, protection range of the present utility model is not limited to the following stated:
As Figure 1-3, a kind of hold down gag that prevents lead frame vibration, it comprises support, connecting rod 1, fixed lever 2, power transmission shaft 3 and pinch roller 4, pinch roller 4 is arranged on fixed lever 2, support is comprised of base plate 5 and L plate 6, the long limit of L plate 6 is perpendicular to base plate 5 and be arranged on base plate 5, on the minor face of L plate 6, be provided with dead eye 7, the rectangular shape of connecting rod 1, on the side of connecting rod 1, be provided with through hole I8 and through hole II9, the diameter of through hole I8 is greater than through hole II9, through hole I8 and through hole II9 are positioned at the two ends of connecting rod 1, the top of connecting rod 1 is provided with screwed hole I10 and screwed hole II11, screwed hole I10 is identical with the nominal diameter of screwed hole II11, screwed hole I10 and screwed hole II11 are communicated with through hole I8 and through hole II9 respectively, power transmission shaft 3 is successively through dead eye 7 and through hole I8, in screwed hole I10, being connected with screw and screw is pressed on power transmission shaft 3, fixed lever 2 is through through hole II9, in screwed hole II11, being connected with screw and screw is pressed on fixed lever 2.
As shown in Figure 2 or Figure 3, be provided with a plurality of installing holes 12 on base plate 5, two bearings are installed in dead eye 7, two bearings are installed on power transmission shaft 3.
As shown in Figure 3, it also comprises plug ring 13 and adapter sleeve 14, and plug ring 13 is arranged in through hole I8, and plug ring 13, for blocking dust use, prevents that dust from entering in bearing; Adapter sleeve 14 is arranged on fixed lever 2, and connecting rod 1 is arranged between adapter sleeve 14 and pinch roller 4.
The course of work of the present utility model is as follows: use before this device, base plate 5 is arranged between slicing device and index pin type haulage gear, when slicing device is by after lead frame cutting, be rotated counterclockwise power transmission shaft 3, power transmission shaft 3 drivening rods are rotated counterclockwise, connecting rod 1 drives fixed lever 2 to be rotated counterclockwise, fixed lever 2 makes pinch roller 4 be pressed in the lead frame surface after cutting, lead frame is under the gravity of pinch roller 4 self and the effect of power transmission shaft 3 torques, lead frame can not produce the displacement on directions X because of mechanical shock, thereby index pin type haulage gear is the accurate index hole of aiming on lead frame in the action of sinking, avoided the softer lead frame of material to be extruded distortion, thereby reduced product rejection rate, improved production efficiency.After the power transmission shaft 3 that turns clockwise, lead frame is separated with pinch roller 4, and index pin type haulage gear draws the lead frame after cutting to bonding equipment high-temperature soldering region, thereby realizes welding.
Claims (7)
1. a hold down gag that prevents lead frame vibration, it is characterized in that: it comprises support, connecting rod (1), fixed lever (2), power transmission shaft (3) and pinch roller (4), pinch roller (4) is arranged on fixed lever (2), support is comprised of base plate (5) and L plate (6), the long limit of L plate (6) is perpendicular to base plate (5) and be arranged on base plate (5), on the minor face of L plate (6), be provided with dead eye (7), on the side of connecting rod (1), be provided with through hole I(8) and through hole II(9), through hole I(8) and through hole II(9) be positioned at the two ends of connecting rod (1), the top of connecting rod (1) is provided with screwed hole I(10) and screwed hole II(11), screwed hole I(10) and screwed hole II(11) respectively with through hole I(8) and through hole II(9) be communicated with, power transmission shaft (3) is successively through dead eye (7) and through hole I(8), screwed hole I(10) in, being connected with screw and screw is pressed on power transmission shaft (3), fixed lever (2) is through through hole II(9), screwed hole II(11) in, being connected with screw and screw is pressed on fixed lever (2).
2. a kind of hold down gag that prevents lead frame vibration according to claim 1, is characterized in that: on described base plate (5), be provided with a plurality of installing holes (12).
3. a kind of hold down gag that prevents lead frame vibration according to claim 1, is characterized in that: two bearings are installed in described dead eye (7), and two bearings are installed on power transmission shaft (3).
4. a kind of hold down gag that prevents lead frame vibration according to claim 1, is characterized in that: described screwed hole I(10) with screwed hole II(11) nominal diameter identical.
5. a kind of hold down gag that prevents lead frame vibration according to claim 1, is characterized in that: diameter described through hole I(8) is greater than through hole II(9).
6. a kind of hold down gag that prevents lead frame vibration according to claim 1, it is characterized in that: it also comprises plug ring (13) and adapter sleeve (14), described plug ring (13) is arranged on through hole I(8) in, it is upper that described adapter sleeve (14) is arranged on fixed lever (2), and connecting rod (1) is arranged between adapter sleeve (14) and pinch roller (4).
7. a kind of hold down gag that prevents lead frame vibration according to claim 1, is characterized in that: the rectangular shape of described connecting rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239880.3U CN203812854U (en) | 2014-05-12 | 2014-05-12 | Compression device for preventing vibration of lead frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239880.3U CN203812854U (en) | 2014-05-12 | 2014-05-12 | Compression device for preventing vibration of lead frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812854U true CN203812854U (en) | 2014-09-03 |
Family
ID=51451573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239880.3U Withdrawn - After Issue CN203812854U (en) | 2014-05-12 | 2014-05-12 | Compression device for preventing vibration of lead frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943514B (en) * | 2014-05-12 | 2016-08-24 | 成都先进功率半导体股份有限公司 | A kind of hold down gag preventing lead frame from vibrating |
-
2014
- 2014-05-12 CN CN201420239880.3U patent/CN203812854U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943514B (en) * | 2014-05-12 | 2016-08-24 | 成都先进功率半导体股份有限公司 | A kind of hold down gag preventing lead frame from vibrating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140903 Effective date of abandoning: 20160824 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |