CN205702779U - Ultrasonic assistant brazing fixture - Google Patents
Ultrasonic assistant brazing fixture Download PDFInfo
- Publication number
- CN205702779U CN205702779U CN201620139341.1U CN201620139341U CN205702779U CN 205702779 U CN205702779 U CN 205702779U CN 201620139341 U CN201620139341 U CN 201620139341U CN 205702779 U CN205702779 U CN 205702779U
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- CN
- China
- Prior art keywords
- smooth guide
- fixture
- guide pillar
- upper fixture
- lower clamp
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- 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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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The utility model discloses a kind of ultrasonic assistant brazing fixture, including upper fixture, lower clamp and smooth guide pillar, lower clamp is divided into clamping section and extension, described upper fixture is arranged on the clamping section of lower clamp and connects by screw is fixing, upper fixture offers rectangular through-hole, described smooth guide pillar at least two, multiple smooth guide pillars are symmetricly set on rectangular through-hole both sides and through upper fixture, being provided with spring between top cap and the upper fixture of smooth guide pillar, the upper end of described spring is welded to connect with the top cap of smooth guide pillar, lower end is welded with the upper surface of upper fixture.The acoustic cavitation utilizing ultrasonic activation to propagate in the liquid solder of fusing and to produce and acoustic streaming grade level effect, the weldment solder after soldering is full of weld seam, and wettability is good, and welding quality is excellent, it is ensured that feature contacts face is smooth, gap uniformity.
Description
Technical field
This utility model relates to a kind of soldering fixture, specifically a kind of ultrasonic assistant brazing fixture.
Background technology
In Electronic Packaging now with assembly industry, one of key technology of microelectronics Packaging and packaging technology is to utilize solder alloy as filler metal to carry out soldered.Electronic product constantly pursues high density, high-performance and miniaturization, and the size of solder joint persistently reduces.Such as, size an order of magnitude less than the size of conventional flip chip solder joint of emerging 3D IC encapsulation interconnection microbonding point, this is just to utilizing brazing tooling to have higher requirement to the joint clearance of brazing guaranteeing the mutual alignment between part.Particularly ultrasonic assistant brazing is as a kind of new technology, has lot of advantages, but currently without being applicable to the fixture of ultrasonic assistant brazing.
Summary of the invention
The problem existed for above-mentioned prior art, this utility model provides a kind of ultrasonic assistant brazing fixture, the acoustic cavitation utilizing ultrasonic activation to propagate in the liquid solder of fusing and to produce and acoustic streaming grade level effect, weldment solder after soldering is full of weld seam, wettability is good, welding quality is excellent, it is ensured that feature contacts face is smooth, gap uniformity.
To achieve these goals, the technical solution adopted in the utility model is: this kind of ultrasonic assistant brazing fixture, including upper fixture, lower clamp and smooth guide pillar, lower clamp is divided into clamping section and extension, described upper fixture is arranged on the clamping section of lower clamp and connects by screw is fixing, upper fixture offers rectangular through-hole, described smooth guide pillar at least two, multiple smooth guide pillars are symmetricly set on rectangular through-hole both sides and through upper fixture, it is provided with spring between top cap and the upper fixture of smooth guide pillar, the upper end of described spring is welded to connect with the top cap of smooth guide pillar, lower end is welded with the upper surface of upper fixture.
Further, described smooth guide pillar is six, and every three smooth guide pillars are in a row, are symmetricly set on rectangular through-hole both sides.
Further, U-type groove is offered in the position that lower clamp upper surface is corresponding with rectangular through-hole.
Compared with prior art, this utility model uses the mode that upper fixture and lower clamp combine, and is placed on the clamping section of lower clamp by the copper sheet alignment to be welded by two, is fastenedly connected by the clamping section of screw with lower clamp by upper fixture；Then ultrasonic activation head is pressed on the extension upper surface of lower clamp, finally solder is placed on two copper sheet places to be welded, and then beginning soldering, this mode makes ultrasonic activation head because of away from heating source, heated by soldering affected little, not over the work ceiling temperature of ultrasonic oscillator；The ultrasonic energy that ultrasonic activation head produces reaches solder wetting interface from solid mother metal, it is lost the least, the acoustic cavitation produced owing to utilizing ultrasonic activation to propagate in the liquid solder of fusing and acoustic streaming grade level effect, strengthen the dissolving diffusion of solder and two ends, copper base interface element, accelerating the effusion of gas, the weldment solder after soldering is full of weld seam, and wettability is good, welding quality is excellent, it is ensured that feature contacts face is smooth, gap uniformity.
Accompanying drawing explanation
Fig. 1 is axonometric drawing of the present utility model；
Fig. 2 is front view of the present utility model.
In figure: 1, lower clamp, 2, upper fixture, 3, rectangular through-hole, 4, smooth guide pillar, 5, spring.
Detailed description of the invention
The utility model is described in further detail below.
As depicted in figs. 1 and 2, this utility model includes fixture 2, lower clamp 1 and smooth guide pillar 4, lower clamp 1 is divided into clamping section and extension, described upper fixture 2 is arranged on the clamping section of lower clamp 1 and connects by screw is fixing, upper fixture 2 offers rectangular through-hole 3, described smooth guide pillar 4 at least two, multiple smooth guide pillars 4 are symmetricly set on rectangular through-hole 3 both sides and through upper fixture 2, being provided with spring 5 between top cap and the upper fixture 2 of smooth guide pillar 4, the upper end of described spring 5 is welded to connect with the top cap of smooth guide pillar 4, lower end is welded with the upper surface of upper fixture 2.
Further, described smooth guide pillar 4 is six, and every three smooth guide pillars 4 are in a row, are symmetricly set on rectangular through-hole 3 both sides；Using this two rows to arrange can make copper sheet fixing more firm between upper lower clamp, it is simple to soldering.
As a kind of improvement of the present utility model, the position corresponding with rectangular through-hole 3 at lower clamp 1 upper surface offers U-type groove；This mode can prevent two copper sheets from boning with lower clamp 1 after brazing, and is easy to the flowing between copper sheet of solder.
During use, two copper sheet to be welded alignment are placed on the clamping section of lower clamp 1, upper fixture 2 is alignd with the clamping section of lower clamp 1, during driving upper fixture 2 and smooth guide pillar 4 to be screwed down by screw, when the lower end of smooth guide pillar 4 touches copper sheet, upper fixture 2 continues to move downward, the most smooth guide pillar 4 moves upward relative to upper fixture 2, makes spring 5 elongate, and spring 5 is applied to smooth guide pillar 4 downforce, smooth guide pillar 4 is made to compress copper sheet, until tightening screw；Ultrasonic activation head is pressed on the extension upper surface of lower clamp 1, finally solder is placed on two copper sheet places to be welded, and then starts soldering.
Claims (3)
1. a ultrasonic assistant brazing fixture, it is characterised in that include fixture (2), lower clamp (1) and smooth
Guide pillar (4), lower clamp (1) is divided into clamping section and extension, described upper fixture (2) to be arranged on the clamping of lower clamp (1)
Connecting in portion and by screw is fixing, upper fixture (2) offers rectangular through-hole (3), and described smooth guide pillar (4) is at least
Two, multiple smooth guide pillars (4) are symmetricly set on rectangular through-hole (3) both sides and through upper fixture (2), smooth guide pillar (4)
Top cap and upper fixture (2) between be provided with spring (5), the top cap weldering of the upper end of described spring (5) and smooth guide pillar (4)
Connect in succession, lower end is welded with the upper surface of upper fixture (2).
A kind of ultrasonic assistant brazing fixture the most according to claim 1, it is characterised in that described smooth guide pillar (4)
Being six, every three smooth guide pillars (4) are in a row, are symmetricly set on rectangular through-hole (3) both sides.
A kind of ultrasonic assistant brazing fixture the most according to claim 1, it is characterised in that in lower clamp (1)
The upper surface position corresponding with rectangular through-hole (3) offers U-type groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620139341.1U CN205702779U (en) | 2016-02-24 | 2016-02-24 | Ultrasonic assistant brazing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620139341.1U CN205702779U (en) | 2016-02-24 | 2016-02-24 | Ultrasonic assistant brazing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205702779U true CN205702779U (en) | 2016-11-23 |
Family
ID=57334905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620139341.1U Expired - Fee Related CN205702779U (en) | 2016-02-24 | 2016-02-24 | Ultrasonic assistant brazing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205702779U (en) |
-
2016
- 2016-02-24 CN CN201620139341.1U patent/CN205702779U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20170224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |