CN112872535A - Laser jet solder ball welding mechanism - Google Patents
Laser jet solder ball welding mechanism Download PDFInfo
- Publication number
- CN112872535A CN112872535A CN202110025776.9A CN202110025776A CN112872535A CN 112872535 A CN112872535 A CN 112872535A CN 202110025776 A CN202110025776 A CN 202110025776A CN 112872535 A CN112872535 A CN 112872535A
- Authority
- CN
- China
- Prior art keywords
- solder ball
- welding
- nozzle
- ball
- tin ball
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/04—Heating appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/0623—Solder feeding devices for shaped solder piece feeding, e.g. preforms, bumps, balls, pellets, droplets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser spraying tin ball welding mechanism which comprises a support, a tin ball conveying device and a nozzle device, wherein the middle part of the support is provided with an accommodating cavity, a tin ball storage chamber is arranged on the support above the left side of the accommodating cavity, a discharging channel is arranged on the support below the right side of the accommodating cavity, the tin ball conveying device comprises a driving component and a tin ball separating disc, the tin ball separating disc is arranged in the accommodating cavity and connected with the driving component and used for separating and conveying the tin balls, and the nozzle device comprises a welding cavity arranged at the right side end of the support and a nozzle component arranged corresponding to the bottom of the welding cavity. The invention has simple structure, high welding speed and high precision.
Description
Technical Field
The invention belongs to the technical field of laser soldering, and particularly relates to a laser jet solder ball welding mechanism.
Background
The electronic assembly is an important step in the production process of electronic equipment, plays a decisive role in the design, manufacture and production process of the electronic equipment, and is a key link for starting and ending the whole electronic manufacturing industry. The technical level and the operation performance of the electronic assembly special equipment not only directly affect the electrical connectivity of the product, but also affect the stability and the use safety of the product performance, and even determine the success or failure of the whole large-scale system. According to investigation, electronic assembly enterprises in the market still adopt the traditional soldering iron for soldering in large batch. However, with the development of wire processing technology and technology, the size of connectors, PCBs and terminals is further miniaturized, the requirements for wire transmission quality and speed are continuously improved, the traditional electric soldering iron soldering tin and HOT BAR have technological bottlenecks, the precision welding of tiny devices cannot be efficiently realized, and the traditional welding mode and other contact welding technologies have hidden troubles of damaging the wire and the transmission performance.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the defects of the prior art, the laser spraying tin ball welding mechanism with simple structure and high welding precision is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows: a laser jet solder ball welding mechanism is characterized in that: the tin ball conveying device comprises a driving assembly and a tin ball separating disc, the tin ball separating disc is arranged in the containing cavity and is connected with the driving assembly for tin ball separating conveying, and the nozzle mechanism comprises a welding cavity arranged at the right side end of the support and a nozzle assembly corresponding to the bottom of the welding cavity.
According to the scheme, the positions of the tin ball separating disc corresponding to the welding cavity are provided with annular holes, and the positions corresponding to the tin ball storage chamber and the discharging channel are provided with ball distributing holes at even intervals along the circumferential direction.
According to the scheme, the driving assembly comprises a rotating main shaft and a driving motor, the bottom of the rotating main shaft penetrates through the central through hole of the support to be connected with the center of the tin ball separation disc, and the top of the rotating main shaft is connected with the driving motor.
According to the scheme, the nozzle assembly comprises a welding head, a nozzle and a sealing protection lens, the welding head is of a conical barrel structure, the large end corresponds to the bottom of the welding cavity and is fixed on the support, the nozzle is installed on the small end through a nozzle quick-release sheath, a feeding hole communicated with the discharging channel is formed in the side wall of the welding head, and the sealing protection lens is fixed at the top of the welding cavity.
According to the scheme, the side wall of the top of the welding head is provided with an inert gas injection port.
According to the scheme, the aperture of the nozzle is smaller than the section diameter of the solder ball.
According to the scheme, the sealed protective lens is an optical lens.
According to the scheme, the aperture of the ball dividing hole is larger than the section diameter of the solder ball, and the thickness of the solder ball separating disc is the same as the section diameter of the solder ball.
The invention has the beneficial effects that: compared with the common brazing method, the laser jet tin ball welding mechanism has the characteristics of impact deformation and instantaneous solidification, and embodies the characteristic technological process characteristics; meanwhile, the welding speed is high, the welding precision is high, the welding fixture is particularly suitable for welding fine hole type welding pads and three-dimensional space type welding pads, the labor cost can be effectively reduced, and the production efficiency is greatly improved.
Drawings
FIG. 1 is an isometric view of one embodiment of the invention.
Detailed Description
For a better understanding of the present invention, reference is made to the following description taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1, a laser spraying tin ball welding mechanism, including support 1, tin ball conveyor and nozzle device, the support middle part is equipped with holding chamber 2, be equipped with tin ball apotheca 3 on the support that is located holding chamber left side top, be used for storing the tin ball, be equipped with discharging channel 4 on the support that is located holding chamber right side below, tin ball conveyor includes drive assembly and tin ball separation video disc 5, the holding intracavity is located to the tin ball separation video disc, link to each other with drive assembly, be used for the tin ball separation to carry, nozzle device is including locating welding chamber 6 of support right side end and the nozzle assembly that corresponds the welding chamber bottom and set up.
The position of the tin ball separating disc corresponding to the welding cavity is provided with an annular hole 7, so that the tin ball separating disc can not block the welding chamber, and the positions corresponding to the tin ball storage chamber and the discharging channel are provided with ball distributing holes 8 at even intervals along the circumferential direction. The aperture of the ball dividing hole is larger than the section diameter of the solder ball, and the thickness of the solder ball separating disc is the same as the section diameter of the solder ball, so that a single solder ball can smoothly pass through the through hole, the fast and stable solder ball separation is realized, and the phenomenon of solder ball blockage or idle running of the solder ball separating disc is not easy to occur.
The driving component comprises a rotating main shaft 9 and a driving motor, the bottom of the rotating main shaft penetrates through the central through hole of the bracket to be connected with the center of the tin ball separation disc, and the top of the rotating main shaft is connected with the driving motor. The rotary main shaft drives the tin ball separating disk to do uniform circular motion through the control of the driving motor.
The nozzle assembly comprises a welding head 10, a nozzle 11 and a sealing protective lens 12, the welding head is of a conical barrel structure, a large head end is fixed on the support corresponding to the bottom of the welding cavity, the nozzle is installed on a small head end through a nozzle quick-dismantling jacket 13 and is beneficial to realizing quick nozzle replacement, a feeding hole 14 communicated with a discharging channel is formed in the side wall of the welding head, and the sealing protective lens is fixed at the top of the welding cavity.
The side wall of the top of the welding head is provided with an inert gas injection port 15 for injecting inert gas to protect the solder ball from being oxidized, and the adopted inert gas is generally nitrogen.
The aperture of the nozzle is smaller than the section diameter of the solder ball, so that the solder ball is just clamped at the nozzle port.
The sealed protective lens is an optical lens, the whole welding cavity can be sealed, and nitrogen is introduced into the inner cavity during welding to keep a certain air pressure inside the welding cavity and prevent inert gas from escaping; but also can make the laser penetrate smoothly.
During welding, the rotary main shaft drives the tin ball separating disc to perform uniform-speed circular motion under the control of the servo driving motor, the tin balls in the tin ball storage chamber enter the tin ball distributing hole and rotate to a target position along with the tin ball separating disc, namely a tin ball discharging channel, then enter the cavity of the welding head through the feeding hole and stay at the port of the nozzle, laser penetrates through the sealing protective lens to enter the inner cavity of the welding head, the tin balls are melted by high-energy laser and are directly sprayed to a target welding disc under the action of nitrogen pressure, and accurate welding is completed.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (8)
1. A laser jet solder ball welding mechanism is characterized in that: the tin ball conveying device comprises a driving assembly and a tin ball separating disc, the tin ball separating disc is arranged in the containing cavity and is connected with the driving assembly for tin ball separating conveying, and the nozzle mechanism comprises a welding cavity arranged at the right side end of the support and a nozzle assembly corresponding to the bottom of the welding cavity.
2. The laser-injected solder ball bonding mechanism as claimed in claim 1, wherein the solder ball separating disk has annular holes at positions corresponding to the bonding cavities, and ball-separating holes are circumferentially and uniformly spaced at positions corresponding to the solder ball storage chambers and the discharge channels.
3. The laser jet solder ball bonding mechanism of claim 1 or 2, wherein the driving assembly comprises a spindle and a driving motor, the spindle is connected to the center of the solder ball separating disk through the central through hole of the bracket at the bottom and connected to the driving motor at the top.
4. The laser jet solder ball welding mechanism of claim 1 or 2, wherein the nozzle assembly comprises a welding head, a nozzle and a sealing protection lens, the welding head is a conical cylinder structure, the large end is fixed on the bracket corresponding to the bottom of the welding cavity, the nozzle is installed at the small end through a nozzle quick-release sheath, a feeding hole communicated with the discharging channel is arranged on the side wall of the welding head, and the sealing protection lens is fixed at the top of the welding cavity.
5. The laser jet solder ball bonding mechanism of claim 4, wherein an inert gas injection port is formed on a top side wall of the bonding head.
6. The laser jet solder ball bonding mechanism of claim 5, wherein the diameter of the nozzle is smaller than the diameter of the solder ball.
7. The laser-injected solder ball bonding mechanism of claim 6, wherein the sealing protection lens is an optical lens.
8. The laser jet solder ball bonding mechanism of claim 2, wherein the diameter of the ball dividing hole is larger than the diameter of the solder ball, and the thickness of the solder ball separating disk is the same as the diameter of the solder ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025776.9A CN112872535A (en) | 2021-01-08 | 2021-01-08 | Laser jet solder ball welding mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110025776.9A CN112872535A (en) | 2021-01-08 | 2021-01-08 | Laser jet solder ball welding mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112872535A true CN112872535A (en) | 2021-06-01 |
Family
ID=76047441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110025776.9A Withdrawn CN112872535A (en) | 2021-01-08 | 2021-01-08 | Laser jet solder ball welding mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112872535A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385816A (en) * | 2021-07-28 | 2021-09-14 | 王秋 | Automatic plate laser welding device and welding method thereof |
| CN114160908A (en) * | 2022-02-11 | 2022-03-11 | 江苏高凯精密流体技术股份有限公司 | Laser molten tin spray welding multi-channel feeding system |
| CN115178906A (en) * | 2022-09-14 | 2022-10-14 | 深圳市艾贝特电子科技有限公司 | Laser welding machine and feeding mechanism thereof |
-
2021
- 2021-01-08 CN CN202110025776.9A patent/CN112872535A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113385816A (en) * | 2021-07-28 | 2021-09-14 | 王秋 | Automatic plate laser welding device and welding method thereof |
| CN113385816B (en) * | 2021-07-28 | 2023-01-10 | 深圳市众心原激光科技有限公司 | Automatic plate laser welding device and welding method thereof |
| CN114160908A (en) * | 2022-02-11 | 2022-03-11 | 江苏高凯精密流体技术股份有限公司 | Laser molten tin spray welding multi-channel feeding system |
| CN115178906A (en) * | 2022-09-14 | 2022-10-14 | 深圳市艾贝特电子科技有限公司 | Laser welding machine and feeding mechanism thereof |
| CN115178906B (en) * | 2022-09-14 | 2022-12-30 | 深圳市艾贝特电子科技有限公司 | Laser welding machine and feeding mechanism thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210601 |
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| WW01 | Invention patent application withdrawn after publication |