CN205329183U - Point of lead frame plates mechanism - Google Patents
Point of lead frame plates mechanism Download PDFInfo
- Publication number
- CN205329183U CN205329183U CN201521008274.1U CN201521008274U CN205329183U CN 205329183 U CN205329183 U CN 205329183U CN 201521008274 U CN201521008274 U CN 201521008274U CN 205329183 U CN205329183 U CN 205329183U
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- CN
- China
- Prior art keywords
- lead frame
- torus
- dian
- tourus
- hole
- 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- Withdrawn - After Issue
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Abstract
The utility model discloses a point of lead frame plates mechanism, including the tourus, the tourus outer peripheral face be equipped with at least one ring channel and with lead frame matched with location structure, inlayed the sealed ring of gluing on the ring channel, sealed glue to be equipped with on the ring electroplate the electroplating through -hole that the position suited with the lead frame, be equipped with radial hole on the tourus and correspond sealed electroplating through -hole of gluing on the ring, the upside of tourus is provided with the pressure plate mechanism of liftable, and the lower part cooperation of tourus is on at least two supporting wheels, and the extrusion lead frame made the sealed ring of gluing in lead frame and position laminate mutually when this pressure plate mechanism descended, made tourus and supporting wheel rotate during the pulling lead frame, the centre of tourus is provided with the spreader, and the spreader spouts the plating solution towards the lead frame, be provided with the electrode by being close to tourus upper portion, the utility model discloses can electroplate according to the local position that the lead frame was set for, both reduce the manufacturing cost of lead frame, improve the whole quality after the lead frame is connected with the chip again.
Description
Technical field
This utility model relates to electroplating device, the Dian Du mechanism of especially a kind of lead frame。
Background technology
Lead frame is as the chip carrier of integrated circuit, it it is a kind of electrical connection realizing chip internal circuits exit and outer lead by means of bonding material (spun gold, aluminium wire, copper wire), form the key structure part of electric loop, it serves the function served as bridge connected with outer lead, being required in the semiconductor integrated block of the overwhelming majority using lead frame, lead frame is basic material important in electronics and information industry。
Existing lead frame and chip internal circuits exit coupling part are required for carrying out silver-plated, in order to welding。As shown in Figure 1 be the top view of a kind of lead frame, it needs 1a, 2a and 3a place in the accompanying drawings to carry out silver-plated, traditional electroplating device and technique can only carry out silver-plated in the whole face at 1a, 2a and 3a place, but to be the mid portion at 1a, 2a and 3a place just passable for lead frame and the coupling part of chip internal circuits exit；Carrying out silver-plated in the whole face at 1a, 2a and 3a place, not only increase the consumption of silver, improve the manufacturing cost of lead frame, additional silver-plated part is unfavorable for that lead frame connects the overall tightness after chip simultaneously, also can reduce the quality of integral product。
Utility model content
The technical problems to be solved in the utility model is to provide the Dian Du mechanism of a kind of lead frame, it can be electroplated by the local location set by lead frame, both reduce the manufacturing cost of lead frame, be conducive to again improving the quality of integral product after lead frame is connected with chip。
For reaching above-mentioned purpose, the technical solution of the utility model is: the Dian Du mechanism of a kind of lead frame, including torus, torus outer peripheral face is provided with at least one cannelure and the location structure matched with lead frame, cannelure is embedded with sealed rubber ring, sealed rubber ring is provided with the electroplating ventilating hole adapted with lead frame electroplating site, and torus is provided with the electroplating ventilating hole on radial direction through hole correspondence sealed rubber ring；Toric upside is provided with liftable press plate mechanism, toric bottom coordinates at least two supports and takes turns, when this press plate mechanism declines, swaged lead framework makes lead frame and position sealed rubber ring fit, and pulls and makes torus rotate with supporting wheel during lead frame；Toric centre is provided with spreader, and spreader sprays electroplate liquid towards lead frame；Side, torus top is being provided with electrode。
Improving further, described sealed rubber ring is made up of the splicing of multiple sealing joint strips, each sealing joint strip many piece chimeric posts are arranged below, torus is provided with the chimeric through hole of multiple radial direction, and every chimeric post is through the chimeric through hole of a described radial direction。To facilitate manufacture and assembling。
Improving further, on described sealed rubber ring, the outer ledge of electroplating ventilating hole is provided with seal convexity。To improve sealing property further。
Preferred described location structure includes the multiple locating dowels being arranged on torus outer peripheral face, and lead frame is provided with the hole, location of multiple correspondence and matches with multiple locating dowels。
Improving further, described torus outer peripheral face is provided with two annular flange flange, and torus supports wheel by two annular flange flange with four and matches, and each two supports wheel and is articulated on a support axle, and every supports axle and axially parallels with toric。
Further, the outer peripheral face that each support is taken turns is provided with annular engagement groove and a described annular flange flange matches。
Preferred described spreader includes a body, and body is provided with the arc surface corresponding with described torus inner surface, and body has inner chamber, described arc surface is distributed multiple liquid outlet, each liquid outlet connection chamber body, body connects a feed tube, and feed tube connects with chamber body。The electroplate liquid of this spreader ejection is more uniform。
It is provided with electrode preferably near side, both sides, torus top。To improve plating performance。
Preferred described press plate mechanism includes a lifting support, lifting support is in the both sides on torus top equipped with two driven pulleys, and lifting support is fitted with a regulating wheel at torus, two between driven pulley and regulating wheel equipped with belt, when lifting support declines, part belt pressure is on the lead frames。This press plate mechanism mechanism belt can move together with lead frame, better protects lead frame。
Further improving, the upper articulation of described lifting support is at the middle part of a support bar, and one end of support bar is hinged on a fixing seat, and the other end of support bar connects balancing weight。Just can adjust the belt thrust to lead frame, suitable thrust by adjusting the weight of balancing weight, can prevent lead frame and belt from relative motion occurring, further protection lead frame and belt。
This utility model is through the radial direction through hole on torus due to electroplate liquid that spreader ejects and the electroplating ventilating hole on sealed rubber ring is sprayed on the position that lead frame need to be electroplated, other position of lead frame does not reach electroplate liquid, the cross-sectional area that plating area is only on sealed rubber ring electroplating ventilating hole, it is achieved some plating effect；The shape of electroplating ventilating hole, position and cross-sectional area on the Position Design sealed rubber ring thus need to be able to electroplated according to lead frame, after on sealed rubber ring, the shape of electroplating ventilating hole, position and cross-sectional area are determined, plating area and shape on lead frame just can determine that。Therefore this utility model can be electroplated by the local location set by lead frame, avoid the unnecessary waste of plated metal, both the manufacturing cost of lead frame had been reduced, the sealing property electroplating some effects chip can be prevented again more, be conducive to improving the quality of integral product after lead frame is connected with chip。
Accompanying drawing explanation
Fig. 1 is the top view of a kind of lead frame；
Fig. 2 is this utility model axonometric chart；
Fig. 3 is this utility model front view；
Fig. 4 is torus axonometric chart；
Fig. 5 is torus front view；
Fig. 6 is the A-A sectional view of Fig. 5；
Fig. 7 is sealed rubber ring axonometric chart；
Fig. 8 is single sealing joint strip axonometric chart；
Fig. 9 is spreader axonometric chart。
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, this utility model is described in further detail。
Shown in Fig. 1 to Fig. 9, a kind of Dian Du mechanism of lead frame, including a torus 1, torus 1 is made up of plastic cement, torus 1 outer peripheral face is provided with four cannelures 11 and the location structure matched with lead frame 100, described location structure includes the multiple locating dowels 12 being arranged on torus 1 outer peripheral face, and lead frame 100 is provided with hole, the location 4a of multiple correspondence and matches with multiple locating dowels 12。
Being embedded with a sealed rubber ring 2 on each cannelure 11, sealed rubber ring 2 is provided with the electroplating ventilating hole 21 adapted with lead frame 100 electroplating site, and torus 1 is provided with the electroplating ventilating hole 21 on the corresponding sealed rubber ring 2 of radial direction through hole 13；
For convenience of manufacturing and assembling, described sealed rubber ring 2 is made up of the splicing of multiple sealing joint strips 20, each sealing joint strip 20 many piece chimeric posts 22 are arranged below, torus 1 is provided with the chimeric through hole 14 of multiple radial direction, every chimeric post 22 is fitted together to through hole 14 through a described radial direction, the middle part of every chimeric post 22 is additionally provided with annular projection 221, to prevent sealing joint strip 20 from departing from torus 1。
For improving sealing effectiveness further, on described sealed rubber ring 2, the outer ledge of electroplating ventilating hole 21 is provided with seal convexity 211；This sealing joint strip 20 selects silica gel to make。
The upside of torus 1 is provided with liftable press plate mechanism 3, the bottom of torus 1 coordinates to support at four takes turns on 4, torus 1 outer peripheral face is provided with two annular flange flange 15, torus 1 supports wheel 4 by two annular flange flange 15 with four and matches, and each outer peripheral face supporting wheel 4 is provided with annular engagement groove 41 and matches with a described annular flange flange 15；Each two supports wheel 4 and is articulated in one and supports on axle 5, and every supports axially paralleling of axle 5 and torus 1。
When this press plate mechanism 3 declines, swaged lead framework 100 makes lead frame 100 and position sealed rubber ring 2 fit, and pulls and makes torus 1 relatively rotate with supporting wheel 4 during lead frame 100。
Described press plate mechanism 3 includes a lifting support 31, lifting support 31 in the both sides on torus 1 top equipped with two driven pulleys 32, lifting support 31 is fitted with a regulating wheel 33 at torus 1, the axis of two driven pulleys 32 and regulating wheel 33 is paralleled with the axis of torus 1, equipped with belt 34 between two driven pulleys 32 and regulating wheel 33, when lifting support 31 declines, part belt 34 is pressed on lead frame 100 and makes lead frame 100 and position sealed rubber ring 2 fit；
Regulating wheel 33 is contained on an adjustable shelf 35, and adjustable shelf 35 is provided with a screw rod 351 and is through on lifting support 31, by adjusting the position coordinating the nut on screw rod 351 just can adjust regulating wheel 33, thus adjusting the tension force of belt 34。
The upper articulation of described lifting support 31 is at the middle part of a support bar 6; one end of support bar 6 is hinged on a fixing seat 7; the other end of support bar 6 connects balancing weight 8; the belt 34 thrust to lead frame 100 just can be adjusted by adjusting the weight of balancing weight 8; suitable thrust; can prevent lead frame 100 and belt 34 from relative motion occurring, better protection lead frame 100 and belt 34。
The centre of torus 1 is provided with spreader 9, and spreader 9 sprays electroplate liquid towards lead frame 100；Described spreader 9 includes a body 91, body 91 is provided with the arc surface 911 corresponding with described torus 1 inner surface, body 91 has inner chamber, described arc surface 911 is distributed multiple liquid outlet 912, each liquid outlet 912 connects body 91 inner chamber, body 91 connects a feed tube 92, feed tube 92 and body 91 inner space；Feed tube 92 connects plating liquid pump again；The minimum spacing between arc surface 911 and described torus 1 inner surface on described body 91 is preferably 5-15mm。
It is being provided with electrode 10 near side, both sides, torus 1 top。
The work process of the present embodiment is: referring to Fig. 3, first installs lead frame 100, makes the location hole 4a that lead frame 100 is provided with multiple correspondence match with the multiple locating dowels 12 on torus 1；Then press plate mechanism 3 is put down, part belt 34 presses against on lead frame 100, make lead frame 100 need to electroplate below fit with position sealed rubber ring 2, the electroplating site of the just corresponding lead frame 100 of the electroplating ventilating hole 21 on sealed rubber ring 2, then starts plating liquid pump and inputs electroplate liquid from feed tube 92；Electroplate liquid just penetrates from multiple liquid outlets 912 and is sprayed on the position that lead frame 100 need to be electroplated through the radial direction through hole 13 torus 1 and the electroplating ventilating hole 21 on sealed rubber ring 2, again through the function of current that electrode 10 provides, just required metal such as silver etc. can be plated at the local location that lead frame 100 need to be electroplated；Pull lead frame 100 simultaneously, by the frictional force that the pressure of belt 34 produces, just drive torus 1 rotate and make belt 34 itself do shuttling movement, it is achieved circulation electroplating activity；Again through the movement velocity and the size of current that control lead frame 100, the thickness of plating just can be controlled。
Below being only one preferred embodiment of this utility model, those skilled in the art does equivalent change by claim and both falls within the protection domain of this case。
Claims (10)
1. the Dian Du mechanism of a lead frame, it is characterized in that: include torus, torus outer peripheral face is provided with at least one cannelure and the location structure matched with lead frame, cannelure is embedded with sealed rubber ring, sealed rubber ring is provided with the electroplating ventilating hole adapted with lead frame electroplating site, and torus is provided with the electroplating ventilating hole on radial direction through hole correspondence sealed rubber ring；
Toric upside is provided with liftable press plate mechanism, toric bottom coordinates at least two supports and takes turns, when this press plate mechanism declines, swaged lead framework makes lead frame and position sealed rubber ring fit, and pulls and makes torus rotate with supporting wheel during lead frame；
Toric centre is provided with spreader, and spreader sprays electroplate liquid towards lead frame；Side, torus top is being provided with electrode。
2. the Dian Du mechanism of a kind of lead frame according to claim 1, it is characterized in that: described sealed rubber ring is made up of the splicing of multiple sealing joint strips, each sealing joint strip many piece chimeric posts are arranged below, torus is provided with the chimeric through hole of multiple radial direction, and every chimeric post is fitted together to through hole through a described radial direction。
3. the Dian Du mechanism of a kind of lead frame according to claim 1, it is characterised in that: on described sealed rubber ring, the outer ledge of electroplating ventilating hole is provided with seal convexity。
4. the Dian Du mechanism of a kind of lead frame according to claim 1, it is characterised in that: described location structure includes the multiple locating dowels being arranged on torus outer peripheral face, and lead frame is provided with the hole, location of multiple correspondence and matches with multiple locating dowels。
5. the Dian Du mechanism of a kind of lead frame according to claim 1, it is characterized in that: described torus outer peripheral face is provided with two annular flange flange, torus supports wheel by two annular flange flange with four and matches, each two supports wheel and is articulated on a support axle, and every supports axle and axially parallels with toric。
6. the Dian Du mechanism of a kind of lead frame according to claim 5, it is characterised in that: each outer peripheral face supporting wheel is provided with annular engagement groove and a described annular flange flange matches。
7. the Dian Du mechanism of a kind of lead frame according to claim 1, it is characterized in that: described spreader includes a body, body is provided with the arc surface corresponding with described torus inner surface, body has inner chamber, described arc surface is distributed multiple liquid outlet, each liquid outlet connection chamber body, body connects a feed tube, and feed tube connects with chamber body。
8. the Dian Du mechanism of a kind of lead frame according to claim 1, it is characterised in that: it is being provided with electrode near side, both sides, torus top。
9. the Dian Du mechanism of a kind of lead frame according to any one of claim 1 to 8, it is characterized in that: described press plate mechanism includes a lifting support, lifting support in the both sides on torus top equipped with two driven pulleys, lifting support is fitted with a regulating wheel at torus, two between driven pulley and regulating wheel equipped with belt, when lifting support declines, part belt pressure is on the lead frames。
10. the Dian Du mechanism of a kind of lead frame according to claim 9, it is characterised in that: the upper articulation of described lifting support is at the middle part of a support bar, and one end of support bar is hinged on a fixing seat, and the other end of support bar connects balancing weight。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521008274.1U CN205329183U (en) | 2015-12-08 | 2015-12-08 | Point of lead frame plates mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521008274.1U CN205329183U (en) | 2015-12-08 | 2015-12-08 | Point of lead frame plates mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205329183U true CN205329183U (en) | 2016-06-22 |
Family
ID=56212218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521008274.1U Withdrawn - After Issue CN205329183U (en) | 2015-12-08 | 2015-12-08 | Point of lead frame plates mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205329183U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369307A (en) * | 2015-12-08 | 2016-03-02 | 厦门冠通电子科技有限公司 | Spot plating mechanism for lead frame |
| CN106929891A (en) * | 2017-04-24 | 2017-07-07 | 深圳市长盈精密技术股份有限公司 | Point plating appts |
| WO2018098793A1 (en) * | 2016-12-01 | 2018-06-07 | 深圳市奥美特科技有限公司 | Selective plating device and selective plating die thereof |
-
2015
- 2015-12-08 CN CN201521008274.1U patent/CN205329183U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369307A (en) * | 2015-12-08 | 2016-03-02 | 厦门冠通电子科技有限公司 | Spot plating mechanism for lead frame |
| CN105369307B (en) * | 2015-12-08 | 2017-12-05 | 厦门冠通电子科技有限公司 | A kind of Dian Du mechanisms of lead frame |
| WO2018098793A1 (en) * | 2016-12-01 | 2018-06-07 | 深圳市奥美特科技有限公司 | Selective plating device and selective plating die thereof |
| CN106929891A (en) * | 2017-04-24 | 2017-07-07 | 深圳市长盈精密技术股份有限公司 | Point plating appts |
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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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160622 Effective date of abandoning: 20171205 |