CN116551108B - Welding fixture for electronic equipment - Google Patents
Welding fixture for electronic equipment Download PDFInfo
- Publication number
- CN116551108B CN116551108B CN202310847858.0A CN202310847858A CN116551108B CN 116551108 B CN116551108 B CN 116551108B CN 202310847858 A CN202310847858 A CN 202310847858A CN 116551108 B CN116551108 B CN 116551108B
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- China
- Prior art keywords
- plate
- assembly
- mounting
- accommodating
- axis
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Links
- 238000003466 welding Methods 0.000 title claims abstract description 54
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000004224 protection Effects 0.000 claims abstract description 28
- 230000004308 accommodation Effects 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 29
- 238000009434 installation Methods 0.000 claims description 26
- 230000001154 acute effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 16
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 86
- 229910052757 nitrogen Inorganic materials 0.000 description 39
- 239000007789 gas Substances 0.000 description 30
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 15
- 239000000463 material Substances 0.000 description 14
- 229910001873 dinitrogen Inorganic materials 0.000 description 9
- 229910000679 solder Inorganic materials 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 238000004377 microelectronic Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- JVPLOXQKFGYFMN-UHFFFAOYSA-N gold tin Chemical compound [Sn].[Au] JVPLOXQKFGYFMN-UHFFFAOYSA-N 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009979 protective mechanism Effects 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
-
- 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
- B23K3/08—Auxiliary devices therefor
- B23K3/085—Cooling, heat sink or heat shielding means
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a welding tool for electronic equipment, which belongs to the field of welding and comprises a gas protection mechanism and a rotary assembly mechanism, wherein the gas protection mechanism comprises a flow dividing assembly and a gas supply pipeline which are communicated with each other; the rotary assembly mechanism comprises a mounting plate rotatably arranged in the shell; the first accommodating part and the second accommodating part are sequentially arranged on the mounting plate, a first mounting surface and a second mounting surface for accommodating a workpiece group to be welded are respectively formed on opposite surfaces of the first accommodating part and the second accommodating part, the first mounting surface is parallel to the second mounting surface, the first mounting surface and the second mounting surface are all arranged at an included angle with the horizontal surface, the first accommodating part can be slidably arranged on the mounting plate in a locking manner, and the second accommodating part is fixedly arranged at the edge part of the mounting plate. The welding tool for the electronic equipment can solve the problems of poor product consistency and low production efficiency of the traditional electronic device in the welding process.
Description
Technical Field
The invention belongs to the field of welding, and particularly relates to a welding tool for electronic equipment.
Background
In the microelectronic assembly technology, the gold-tin sintering assembly process has the characteristics of good performance, high joint strength and good wettability, so that the gold-tin eutectic process is mostly adopted to realize the assembly of electronic devices. However, when the microelectronic is assembled by sintering gold and tin, if the process is carried out under the condition of no atmosphere protection, the solder is easy to oxidize, so that the problem of solder accumulation and the phenomenon of solder delamination occur, and the soldering quality is seriously affected.
To the above-mentioned problem, current microelectronic assembly equipment is generally equipped with nitrogen protection device, and this nitrogen protection device can carry nitrogen to welded region, makes high concentration nitrogen wrap up the electronic device that waits to weld all the time to make the welding process of electrical apparatus carry out under the environment that nitrogen wraps up completely, reduces the oxygen concentration around it when electronic device welds to about 2%.
However, in the use process of the existing nitrogen protection device, an electronic device to be welded is required to be placed on another electronic device in a manual clamping mode, so that the positioning accuracy is poor, and the efficiency cannot meet the requirement of mass production; in addition, the product consistency of the electronic devices in the same batch after manual welding cannot be effectively ensured; moreover, the manual welding requires the operability of the welding area, and correspondingly, an operating window is required to be formed on the shell of the nitrogen protection device, which is not beneficial to maintaining the nitrogen concentration of the welding area, and the oxygen solubility around the welding of the electronic device cannot be further reduced.
Disclosure of Invention
The invention aims to provide a welding tool for electronic equipment, which aims to solve the problems of poor product consistency and low production efficiency of the existing electronic device in the welding process.
In order to achieve the above purpose, the invention adopts the following technical scheme: the utility model provides a welding frock for electronic equipment, include:
a housing having an enclosed space formed therein for accommodating a workpiece set to be welded;
the gas protection mechanism comprises a flow dividing assembly and a gas supply pipeline which are communicated with each other, the flow dividing assembly is arranged in the shell, and the gas supply pipeline is arranged on the outer wall of the shell;
the rotary assembly mechanism comprises a mounting disc which is rotatably arranged in the shell and takes a vertical first axis as a center; on the mounting plate, along keeping away from the direction of first axis has set gradually first accommodation portion and second accommodation portion, be formed with first installation face on the first accommodation portion, be formed with the second installation face on the second accommodation portion, first installation face with the second installation face corresponds to be arranged, just first installation face is on a parallel with the second installation face, first installation face with the second installation face all personally submits the acute angle setting with the level, first accommodation portion is followed radial slip of mounting plate is located the mounting plate, second accommodation portion set firmly in the border position of mounting plate, first accommodation portion with the second accommodation portion can provide clamping effort to the work piece group that waits to weld.
Further, the shunt assembly comprises a shunt tube arranged on the inner wall of the shell, the shunt tube is communicated with the air supply pipeline, and a shunt hole facing the first axis is formed in the shunt tube.
Further, the rotary assembly mechanism further comprises a spoiler rotatably arranged in the shell by taking the first axis as a center, and a plurality of spoiler protrusions uniformly arranged around the first axis are arranged on the upper surface of the spoiler.
Further, the first accommodating part comprises a connecting block and a first accommodating plate which are sequentially and integrally connected, the connecting block is arranged on the mounting disc in a sliding manner, and the first accommodating plate is used for mounting the workpiece group to be welded; corresponding to the first accommodating plate, the second accommodating part comprises a second accommodating plate fixed on the mounting plate, the second accommodating plate is used for mounting another workpiece group to be welded, the first mounting surface is positioned on the first accommodating plate, and the second mounting surface is positioned on the second accommodating plate.
Further, the rotary assembly mechanism further comprises a guide assembly arranged on the mounting plate, the guide assembly comprises a guide rod and a first limiting plate which are sequentially connected, the guide rod is fixed on the mounting plate and is in sliding fit with the connecting block, the guide rod corresponds to the guide rod, a limiting protrusion is formed by extending downwards of the connecting block, a guide through groove in sliding fit with the guide rod is formed in the limiting protrusion, the limiting protrusion is located on one side, close to the first axis, of the first limiting plate, and the first limiting plate can be in contact limiting with one side, deviating from the first axis, of the limiting protrusion.
Further, a spring is sleeved on the guide rod, two ends of the spring are respectively connected with the limiting protrusion and one end of the guide rod, and the guide rod is provided with a pretightening force which enables the limiting protrusion to be far away from the first limiting plate.
Further, the rotary assembly mechanism further comprises a guide assembly arranged on the mounting plate, the guide assembly comprises a guide groove and a first limiting plate which are sequentially arranged along the direction far away from the first axis, the guide groove corresponds to the guide groove, one end, close to the first axis, of the connecting block downwards extends to be provided with a guide protrusion matched with the guide groove in a sliding manner, the guide protrusion is positioned between the first axis and the first limiting plate, and the first limiting plate is used for preventing the guide protrusion from being separated from the guide groove.
Furthermore, a gear ring is arranged at the edge part of the mounting plate.
Further, the gas protection mechanism further comprises a pressurizing assembly arranged on the gas supply pipeline, the pressurizing assembly comprises a pressurizing shell and an impeller which is rotatably arranged in the pressurizing shell through a rotating shaft, the pressurizing shell is provided with a gas inlet end and a gas outlet end which are communicated with the gas supply pipeline, the axis of the rotating shaft is perpendicular to the length direction of the gas supply pipeline, and the rotating shaft is in transmission connection with the gear ring.
Further, the gas protection mechanism further comprises a transmission assembly arranged between the impeller and the mounting plate, and the transmission assembly comprises a transmission gear and a transmission shaft; the transmission gear is rotatably arranged on the side wall of the shell and meshed with the gear ring on the mounting disc, and the rotation axis of the transmission gear is parallel to the horizontal plane; the two ends of the transmission shaft are respectively connected with the transmission gear and the rotating shaft in a transmission way through universal joints.
Compared with the prior art, the welding tool for the electronic equipment has the beneficial effects that:
firstly, the invention can completely fill the internal space of the shell with the protective gas (such as nitrogen) by arranging the gas protective mechanism, thereby reducing the oxygen solubility in the shell and improving the technical problem that the welding effect is affected by the high-temperature oxidation of the tin material when the electronic device is welded.
Secondly, the rotary assembly mechanism is arranged, so that the first accommodating part is close to the second accommodating part by utilizing the centrifugal force generated by the mounting disc in the rotary process, the workpiece groups to be welded in the first accommodating part can be attached to the workpiece groups to be welded in the second accommodating part under the action of the centrifugal force, and the workpiece groups to be welded in the first accommodating part and the second accommodating part can be welded in a high-temperature environment; thereby be favorable to improving the technical problem that current manual welding brought the product uniformity poor and production efficiency is low through the mutual cooperation of first accommodation portion and second accommodation portion.
In addition, the mounting plate can keep the stress balance of the tin material by arranging the first mounting surface and the second mounting surface at an included angle with the horizontal surface in the rotating process, so that the tin material keeps stable in self posture in the rotating process of the mounting plate, and the tin material in a molten state is prevented from being thrown out of the first accommodating part or the second accommodating part due to the rotation of the mounting plate.
Besides the beneficial effects, the invention utilizes the centrifugal force generated by the mounting disc in the rotating process to provide a downward pressure for the surface of the tin material so as to solve the problem that the tin material is upwelled along the side wall of the workpiece group to be welded due to the wick effect. Meanwhile, the first accommodating part and the second accommodating part are used for fixing the workpiece groups to be welded, so that the moving paths of the two workpiece groups to be welded during welding can be guided, the position deviation of the two workpiece groups to be welded during welding is reduced, the tombstoning effect of the workpiece groups to be welded caused by uneven distribution of surrounding tin materials is prevented, and the technical problem that the yield of the welding assembly is low during welding processing caused by the conventional manual welding is solved.
In the invention, the workpiece group to be welded in the shell does not need manual welding, so that an operation window is not required to be arranged like the existing nitrogen protection device, and the problems of insufficient nitrogen density and high oxygen solubility in the gas protection device caused by opening the operation window are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:
fig. 1 is a schematic perspective view of a welding tool for electronic equipment in a top view;
fig. 2 is a schematic perspective view of a welding tool for electronic equipment according to the present invention in a bottom view;
FIG. 3 is a schematic perspective view of a rotary assembly mechanism according to the present invention in a top view;
FIG. 4 is a schematic perspective view of a rotary assembly mechanism according to the present invention;
FIG. 5 is an enlarged view of the portion shown at A in FIG. 3;
FIG. 6 is a schematic view showing the internal structure of the lower case of the present invention;
FIG. 7 is a schematic view of the connection between the rotating assembly and the pressing assembly according to the present invention.
In the figure:
1. a housing; 11. an upper case; 111. a deflector; 12. a lower case; 121. a connection part;
2. a gas protection mechanism; 21. a shunt assembly; 211. a shunt; 2111. a diversion aperture; 22. an air supply line; 23. a pressurizing assembly; 231. an impeller; 232. a pressurized shell; 233. a rotating shaft; 24. a transmission assembly; 241. a transmission gear; 242. a transmission shaft;
3. a rotary assembly mechanism; 31. a mounting plate; 311. a gear ring; 32. a first accommodation portion; 321. a first mounting surface; 322. a connecting block; 3221. a limit protrusion; 323. a first accommodation plate; 33. a second accommodating portion; 331. a second mounting surface; 332. a second accommodating plate; 34. a spoiler; 341. turbulence bumps; 342. a vent; 343. a spline; 35. a guide assembly; 351. a guide rod; 352. a first limiting plate; 353. a spring; 36. an idler wheel.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be noted that, if terms indicating an azimuth or a positional relationship such as "upper", "lower", "inner", "back", and the like are presented, they are based on the azimuth or the positional relationship shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art in combination with specific cases.
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, a description will be given of a welding tool for electronic equipment according to the present invention. The welding tool for the electronic equipment comprises a shell 1, a gas protection mechanism 2 and a rotary assembly mechanism 3, wherein a closed space for accommodating a workpiece group to be welded is formed inside the shell 1; the gas protection mechanism 2 comprises a flow dividing assembly 21 and a gas supply pipeline 22 which are communicated with each other, the flow dividing assembly 21 is arranged in the shell 1, and the gas supply pipeline 22 is arranged on the outer wall of the shell 1; the rotary fitting mechanism 3 includes a mounting plate 31 rotatably provided in the housing 1 centering on a vertical first axis; on the mounting plate 31, along keeping away from the direction of first axis has set gradually first accommodation portion 32 and second accommodation portion 33, be formed with first installation face 321 on the first accommodation portion 32, be formed with second installation face 331 on the second accommodation portion 33, first installation face 321 and second installation face 331 correspond the arrangement, first installation face 321 is on a parallel with second installation face 331, first installation face 321 and second installation face 331 all personally submit the acute angle setting with the horizontal plane, first accommodation portion 32 slides along the radial of mounting plate 31 and sets up the upper disc face at mounting plate 31, second accommodation portion 33 sets firmly in the border position of mounting plate 31, first accommodation portion 32 and second accommodation portion 33 can provide clamping effort to the work piece group that waits to weld.
Compared with the prior art, the welding tool for the electronic equipment has the beneficial effects that:
firstly, the invention can completely fill the internal space of the shell 1 with the protective gas (such as nitrogen) by arranging the gas protective mechanism 2, and reduce the oxygen solubility in the shell 1 so as to solve the technical problem that the welding effect is affected by the high-temperature oxidation of the tin material when the electronic device is welded.
Secondly, the invention can utilize the centrifugal force generated by the mounting disc 31 in the rotating process to enable the first accommodating part 32 to be close to the second accommodating part 33, so that the workpiece groups to be welded in the first accommodating part 32 can be attached to the workpiece groups to be welded in the second accommodating part 33 under the action of the centrifugal force, and further the workpiece groups to be welded in the first accommodating part 32 and the second accommodating part 33 can be welded in a high-temperature environment; thereby being beneficial to improving the technical problems of poor product consistency and low production efficiency caused by the existing manual welding through the mutual matching of the first accommodating part 32 and the second accommodating part 33.
In addition, during rotation of the mounting plate 31, the first mounting surface 321 and the second mounting surface 331 can be arranged at an angle with the horizontal surface to balance the stress of the solder, so that the solder can keep stable in posture during rotation of the mounting plate 31, and the solder in a molten state is prevented from being thrown out of the first accommodating portion 32 or the second accommodating portion 33 due to rotation of the mounting plate 31.
In addition to the above beneficial effects, the present invention provides a downward force for the surface of the solder by using the centrifugal force generated by the mounting plate 31 during rotation, so as to solve the problem that the solder is surging along the side wall of the workpiece group to be welded due to the wick effect. Meanwhile, in this embodiment, the first accommodating portion 32 and the second accommodating portion 33 are used for fixing the workpiece sets to be welded, so that the moving paths of the two workpiece sets to be welded during welding can be guided, and the position deviation of the two workpiece sets to be welded during welding is reduced, so that the tombstoning effect of the workpiece sets to be welded caused by uneven distribution of surrounding tin materials is prevented, and the technical problem that the yield is low during welding processing of the welding assembly caused by the existing manual welding is solved.
It should be noted that, in order to accommodate the rotatable mounting plate 31 conveniently, as shown in fig. 1 to 4, the housing 1 in this embodiment has a disc shape, and in addition, the housing 1 specifically includes a lower housing 12 and an upper housing 11 covering the lower housing 12. To facilitate the rotation of the mounting plate 31, the mounting plate 31 is rotatably disposed on the bottom plate of the lower housing 12 by a vertical shaft, and the lower end of the vertical shaft protrudes out of the bottom plate of the lower housing 12 and is formed with a spline 343 connected to an external driving device. The above work-piece sets to be soldered generally include chips to be soldered and electronic devices on which the chips are to be mounted.
For the rotation speed of the mounting plate 31, the rotation speed can be set at 15r/s to 25r/s, and correspondingly, the included angle between the first mounting surface 321 and the second mounting surface 331 and the horizontal plane can be set at 15 degrees to 45 degrees.
In this embodiment, since the workpiece group to be welded in the housing 1 does not need manual welding, there is no need to set an operation window as in the existing nitrogen protection device, which is beneficial to improving the problems of insufficient nitrogen density and too high oxygen solubility in the gas protection device caused by the opening of the operation window.
Optionally, on the side wall of the lower shell 12, a vent pipe is further provided for one-way conduction, so as to facilitate the discharge of air before filling nitrogen into the shell 1, and in addition, a one-way valve is provided in the vent path of the vent pipe.
In some embodiments, to concentrate the nitrogen flowing in the housing 1 to the area where the welding assembly is disposed in the housing 1, please refer to fig. 1 and 7, the split assembly 21 includes a split tube 211 disposed on the inner wall of the housing 1, the split tube 211 is in communication with the gas supply line 22, and the split tube 211 is provided with a split hole 2111 facing the first axis.
In this embodiment, by providing the shunt tube 211 and the shunt plate, the nitrogen gas flows into the housing 1 more uniformly, and the circulation of the nitrogen gas in the housing 1 is facilitated to be smoother.
For the existing nitrogen protection device, as the temperature of the workpiece group to be welded rises, nitrogen entering the protection device can be heated, however, the temperature of the area in the protection device where the workpiece group to be welded is arranged is larger than that of other areas, so that the nitrogen flow in the part of the workpiece group to be welded, which is arranged in the nitrogen protection device, is in an ascending state, and then the nitrogen entering the nitrogen protection assembly can be preferentially collected in the area where the workpiece group to be welded is not arranged.
In addition, in the present invention, the rotation of the mounting plate 31 causes the shielding gas to flow toward the rotation center thereof to be collected, which further causes the nitrogen concentration around the portion of the mounting plate 31 where the workpiece group to be welded is disposed to be lower than the nitrogen concentration at the middle portion of the mounting plate 31, and in order to improve such a problem, in some embodiments, referring to fig. 3 and 4, the rotary fitting mechanism 3 further includes a spoiler 34 rotatably disposed in the housing 1 centering around the first axis, and the upper surface of the spoiler 34 is provided with a plurality of spoiler protrusions 341 uniformly disposed around the first axis.
In this embodiment, with the rotation of the turbulence protrusions 341, the nitrogen flow collected in the middle position of the mounting plate 31 is pushed to the top cover of the upper housing 11, so that the nitrogen flow is diffused to the surrounding due to the impact of the top cover, and the nitrogen concentration in each position in the housing 1 is more uniform.
Further, as shown in fig. 2, the baffle 111 is integrally connected to the lower surface of the top cover of the upper shell 11, and an included angle between the upper plate surface of the baffle 111 and the lower surface of the top cover of the upper shell 11 is an acute angle, and the spoiler 34 pushes the nitrogen flow to the area of the top cover where the baffle 111 is disposed in the rotation process, so that the nitrogen flow is guided to the area of the casing 1 where the workpiece set to be welded is disposed under the action of the obliquely disposed plate surface of the baffle 111, and the flowing form of the nitrogen flow in the casing 1 can be made to be in the shape of a doughnut, and the workpiece set to be welded is located inside the doughnut-shaped nitrogen flow.
It should be noted that, in some embodiments, as shown in fig. 3 and fig. 4, an idler 36 is disposed between the spoiler 34 and the mounting plate 31, and the idler 36 is three in number and is distributed on the outer peripheral surface of the spoiler 34 in a planetary manner, and the idler 36 is engaged with the outer peripheral surface of the spoiler 34 and the inner surface of the mounting plate 31 at the same time and is rotatably mounted on the bottom plate of the housing 1 along its own axis; for the spoiler 34, the spoiler is rotatably disposed on the bottom plate of the housing 1 through a bearing, the bottom end of the rotating shaft 233 of the spoiler 34 protrudes out of the lower surface of the bottom plate of the housing 1, and the bottom thereof is provided with a spline 343 to facilitate driving the spoiler 34 to rotate. In addition, as shown in fig. 6, for the idler 36, a connecting portion 121 with hollow side walls is fixedly arranged on the bottom plate of the housing 1, the connecting portion 121 is in a cylindrical shape, the connecting portion 121 and the spoiler 34 are coaxially arranged, the bearing for connecting the rotating shaft of the spoiler 34 is located inside the connecting portion 121, and the idler 36 is disposed on the upper end surface of the connecting portion 121. In addition, the spoiler 34 is provided with a vent 342 along the thickness direction thereof corresponding to the hollow side wall of the connecting portion 121.
In this way, the turbulent flow disk 34 is driven to rotate, so that the nitrogen flow flowing in the shell 1 can be disturbed, in addition, the installation disk 31 can be driven to rotate simultaneously through the transmission of the idler wheel 36 while the turbulent flow disk 34 is driven to rotate, and the workpiece group to be welded on the first accommodating plate 323 is enabled to be close to the second accommodating plate 332 by utilizing the centrifugal force generated by the rotation of the installation disk 31, so that the welding between the two workpiece groups to be welded is realized. In addition, in this embodiment, the rotation directions of the spoiler 34 and the mounting plate 31 are opposite, so that the concentration distribution of nitrogen in the shell 1 is more uniform, and the technical problem of uneven concentration distribution of nitrogen in the existing nitrogen protection device is solved.
In some embodiments, referring to fig. 5, the first receiving portion 32 includes a connection block 322 and a first receiving plate 323 integrally connected in sequence, the connection block 322 being slidably disposed on the mounting plate 31, the first receiving plate 323 being for mounting a workpiece group to be welded; the second accommodation portion 33 includes a second accommodation plate 332 fixed to the mounting plate 31 in correspondence with the first accommodation plate 323, the second accommodation plate 332 being for mounting another workpiece group to be welded, the first mounting surface 321 being located on a side of the first accommodation plate 323 facing the second accommodation plate 332, and the second mounting surface 331 being located on a side of the second accommodation plate 332 facing the first accommodation plate 323.
In this embodiment, the connection block 322 is provided, so that the first accommodating portion 32 can be connected to the mounting disc 31 and can slide along the radial direction of the mounting disc 31, and then the first accommodating portion 32 can be close to the second accommodating portion 33 under the action of centrifugal force in the rotation process of the mounting disc 31, so that the workpiece group to be welded in the first accommodating portion 32 is attached to the workpiece group to be welded in the second accommodating portion 33, and the workpiece groups to be welded in the first accommodating portion 32 and the second accommodating portion 33 are welded together under the action of high temperature. In addition, the present embodiment facilitates fixing the work piece set to be welded by providing the first accommodation plate 323 and the second accommodation plate 332, preventing the work piece set to be welded from falling off during rotation of the mounting plate 31.
In some embodiments, as shown in fig. 5, the rotating assembly mechanism 3 further includes a guide assembly 35 disposed on the mounting disc 31, the guide assembly 35 includes a guide rod 351 and a first limiting plate 352 connected in sequence, the guide rod 351 is fixed on the mounting disc 31 and slidingly matched with the connecting block 322, a limiting protrusion 3221 is formed by extending downward from one end of the connecting block 322 near the first axis corresponding to the guide rod 351, a guiding through groove slidingly matched with the guide rod 351 is formed in the limiting protrusion 3221, the limiting protrusion 3221 is located on one side of the first limiting plate 352 near the first axis, and the first limiting plate 352 can be in contact with and limit with one side of the limiting protrusion 3221 away from the first axis.
The present embodiment can guide the movement of the connection block 322 by providing the guide rod 351 in guide fit with the connection block 322. In addition, by providing the limit projection 3221 and the first limit plate 352, the first accommodating portion 32 can be prevented from extending and retracting from the guide rod 351 in the process of sliding along the length direction of the guide rod 351, and the minimum distance between the first accommodating portion 32 and the second accommodating portion 33 can be defined by the cooperation between the limit projection 3221 and the first limit plate 352, so that the thickness of the solder between two workpiece groups to be soldered is defined, and the consistency of finished products of soldered electronic devices is effectively ensured.
In some embodiments, in order to prevent the first receiving portion 32 from sliding along the length direction of the guide rod 351, a spring 353 as shown in fig. 5 is sleeved on the guide rod 351, and two ends of the spring 353 are respectively connected to the limiting protrusion 3221 and one end of the guide rod 351, and are configured with a pre-tightening force for keeping the limiting protrusion 3221 away from the first limiting plate 352.
In some embodiments, not shown in the drawings, another embodiment of enabling the first accommodating portion 32 to slide along the radial direction of the guide disc is provided, in detail, the rotating assembly mechanism 3 further includes a guide assembly 35 disposed on the mounting disc 31, the guide assembly 35 includes a guide groove and a first limiting plate 352 sequentially disposed along a direction away from the first axis, a guide protrusion slidingly engaged with the guide groove is disposed at one end of the connecting block 322 near the first axis in a downward extending manner corresponding to the guide groove, and the guide protrusion is located between the first axis and the first limiting plate 352, and the first limiting plate 352 is used for preventing the guide protrusion from being separated from the guide groove.
In the conventional nitrogen protection device, since the operation window is opened in the housing, the nitrogen gas supply is required to be continuously performed, but in the present invention, the sealing property of the housing 1 is good, the gas dissipation speed is low, and therefore the nitrogen gas supply may be intermittent, that is, the nitrogen gas supply may be performed when the mounting plate 31 rotates (when the workpiece group to be welded is required to be welded), so the following embodiment as shown in fig. 7 is proposed for the above-mentioned use conditions, so that the nitrogen gas distribution is more reasonable.
In the present embodiment, the nitrogen is mainly conveyed by the rotation of the mounting plate 31, so that the nitrogen is conveyed in synchronization with the rotation of the mounting plate 31, and the conveying time of the nitrogen is concentrated to the rotation time of the mounting plate 31 (i.e. the welding time of the workpiece group to be welded), and for this purpose, the rim portion of the mounting plate 31 is provided with the gear ring 311. Corresponding to the ring gear 311, in some embodiments, the gas protection mechanism 2 further includes a pressurizing assembly 23 disposed on the gas supply line 22, the pressurizing assembly 23 includes a pressurizing shell 232 and an impeller 231 rotatably disposed in the pressurizing shell 232 through a rotation shaft 233, the pressurizing shell 232 has a gas inlet end and a gas outlet end communicating with the gas supply line 22, an axis of the rotation shaft 233 is perpendicular to a length direction of the gas supply line 22, and the rotation shaft 233 is in driving connection with the ring gear 311. In this embodiment, the impeller 231 is driven to rotate along with the rotation of the mounting plate 31, and the pressure of the nitrogen gas flowing into the casing 1 is generated in the pressurizing shell 232 along with the rotation of the impeller 231, so that the nitrogen gas enters the casing 1 under the action of the pressure. Furthermore, it should be noted that, in the present embodiment, the heating and welding of the workpiece sets to be welded are performed gradually, and the rotation speed of the mounting disc 31 is also gradually increased along with the temperature profile of the workpiece sets to be welded, when the tin material in the workpiece sets to be welded melts, the rotation speed of the mounting disc 31 reaches the predetermined speed, the workpiece sets to be welded in the first accommodating portion 32 are attached to the workpiece sets to be welded in the second accommodating portion 33 under the action of centrifugal force, the melted tin material infiltrates between the two workpiece sets to be welded, after the infiltration process is completed, the temperature is reduced, the tin material is gradually solidified, and then the tin material welds the two workpiece sets to be welded in the first accommodating portion 32 and the second accommodating portion 33 into a whole, and after the tin material is solidified to have sufficient strength, the rotation speed of the mounting disc 31 is gradually reduced to stop the nitrogen gas conveying.
In some embodiments, to achieve a driving connection between the shaft 233 and the mounting plate 31, the present invention further includes a driving assembly 24 disposed between the impeller 231 and the mounting plate 31, the driving assembly 24 including a driving gear 241 and a driving shaft 242; the transmission gear 241 is rotatably arranged on the side wall of the shell 1 and meshed with the gear ring 311 on the mounting disc 31, and the rotation axis of the transmission gear 241 is parallel to the horizontal plane; the two ends of the transmission shaft 242 are respectively connected with the transmission gear 241 and the rotating shaft 233 in a transmission way through universal joints.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. Welding frock is used to electronic equipment, its characterized in that includes:
a housing (1) in which a closed space for accommodating a workpiece group to be welded is formed;
the gas protection mechanism (2) comprises a flow dividing assembly (21) and a gas supply pipeline (22) which are communicated with each other, wherein the flow dividing assembly (21) is arranged inside the shell (1), and the gas supply pipeline (22) is arranged on the outer wall of the shell (1);
a rotary assembly mechanism (3) comprising a mounting plate (31) rotatably arranged in the housing (1) centering on a vertical first axis; on mounting disc (31), along keeping away from direction of first axis has set gradually first accommodation portion (32) and second accommodation portion (33), be formed with first installation face (321) on first accommodation portion (32), be formed with second installation face (331) on second accommodation portion (33), first installation face (321) with second installation face (331) are arranged correspondingly, just first installation face (321) are on a parallel with second installation face (331), first installation face (321) with second installation face (331) all are with the horizontal setting of personally submitting the acute angle, first accommodation portion (32) are followed radial slip of mounting disc (31) is located the upper disc face of mounting disc (31), second accommodation portion (33) set firmly in the border position of mounting disc (31), first accommodation portion (32) with second accommodation portion (33) can provide the clamping effort to the work piece group of treating welding.
2. The welding fixture for electronic equipment according to claim 1, wherein the shunt assembly (21) comprises a shunt tube (211) arranged on the inner wall of the shell (1), the shunt tube (211) is communicated with the air supply pipeline (22), and the shunt tube (211) is provided with a shunt hole (2111) facing the first axis.
3. Welding fixture for electronic equipment according to claim 2, characterized in that the rotating assembly mechanism (3) further comprises a spoiler (34) rotatably arranged in the housing (1) centering on the first axis, and the upper surface of the spoiler (34) is provided with a plurality of spoiler protrusions (341) uniformly arranged around the first axis.
4. The welding fixture for electronic equipment according to claim 1, wherein the first accommodating portion (32) includes a connection block (322) and a first accommodating plate (323) integrally connected in order, the connection block (322) being slidably disposed on the mounting plate (31), the first accommodating plate (323) being for mounting the workpiece group to be welded; corresponding to the first accommodating plate (323), the second accommodating part (33) comprises a second accommodating plate (332) fixed on the mounting plate (31), the second accommodating plate (332) is used for mounting another workpiece group to be welded, the first mounting surface (321) is positioned on one side of the first accommodating plate (323) facing the second accommodating plate (332), and the second mounting surface (331) is positioned on one side of the second accommodating plate (332) facing the first accommodating plate (323).
5. The welding fixture for electronic equipment according to claim 4, wherein the rotating assembly mechanism (3) further comprises a guide assembly (35) arranged on the mounting disc (31), the guide assembly (35) comprises a guide rod (351) and a first limiting plate (352) which are sequentially connected, the guide rod (351) is fixed on the mounting disc (31) and is in sliding fit with the connecting block (322), the corresponding guide rod (351), a limiting protrusion (3221) is formed by extending downwards the connecting block (322), a guide through groove in sliding fit with the guide rod (351) is formed in the limiting protrusion (3221), the limiting protrusion (3221) is located on one side, close to the first axis, of the first limiting plate (352), and the first limiting plate (352) can be in contact limiting with one side, deviating from the first axis, of the limiting protrusion (3221).
6. The welding fixture for electronic equipment according to claim 5, wherein a spring (353) is sleeved on the guide rod (351), and two ends of the spring (353) are respectively connected with the limit protrusion (3221) and one end of the guide rod (351), and are configured with a pretightening force for keeping the limit protrusion (3221) away from the first limit plate (352).
7. The welding fixture for electronic equipment according to claim 4, wherein the rotating assembly mechanism (3) further comprises a guide assembly (35) arranged on the mounting plate (31), the guide assembly (35) comprises a guide groove and a first limiting plate (352) which are sequentially arranged along a direction far away from the first axis, a guide protrusion which is slidably matched with the guide groove is arranged at one end, close to the first axis, of the connecting block (322) in a downward extending manner, and the guide protrusion is arranged between the first axis and the first limiting plate (352), and the first limiting plate (352) is used for preventing the guide protrusion from being separated from the guide groove.
8. The welding fixture for electronic equipment according to claim 1, wherein a gear ring (311) is provided at an edge portion of the mounting plate (31).
9. Welding fixture according to claim 8, characterized in that the gas protection means (2) further comprises a pressurizing assembly (23) arranged on the gas supply line (22), the pressurizing assembly (23) comprises a pressurizing shell (232) and an impeller (231) arranged in the pressurizing shell (232) in a rotating way through a rotating shaft (233), the pressurizing shell (232) is provided with a gas inlet end and a gas outlet end which are communicated with the gas supply line (22), the axis of the rotating shaft (233) is perpendicular to the length direction of the gas supply line (22), and the rotating shaft (233) is in transmission connection with the gear ring (311).
10. The welding fixture for electronic equipment according to claim 9, wherein the gas protection mechanism (2) further comprises a transmission assembly (24) arranged between the impeller (231) and the mounting plate (31), the transmission assembly (24) comprising a transmission gear (241) and a transmission shaft (242); the transmission gear (241) is rotatably arranged on the side wall of the shell (1) and meshed with the gear ring (311) on the mounting disc (31), and the rotation axis of the transmission gear (241) is parallel to the horizontal plane; the two ends of the transmission shaft (242) are respectively connected with the transmission gear (241) and the rotating shaft (233) in a transmission way through universal joints.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310847858.0A CN116551108B (en) | 2023-07-12 | 2023-07-12 | Welding fixture for electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310847858.0A CN116551108B (en) | 2023-07-12 | 2023-07-12 | Welding fixture for electronic equipment |
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| CN116551108A CN116551108A (en) | 2023-08-08 |
| CN116551108B true CN116551108B (en) | 2023-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310847858.0A Active CN116551108B (en) | 2023-07-12 | 2023-07-12 | Welding fixture for electronic equipment |
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| CN218983737U (en) * | 2022-11-29 | 2023-05-09 | 佛山市天权机器人科技有限公司 | Clamping and fixing structure and welding device using same |
| CN219234209U (en) * | 2023-01-20 | 2023-06-23 | 浙江明鑫热处理设备有限公司 | Air blowing mechanism for nitrogen protection aluminum brazing furnace |
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| FR1427285A (en) * | 1965-02-05 | 1966-02-04 | Sprague Electric Co | Welding device |
| CN109317775A (en) * | 2018-11-27 | 2019-02-12 | 深圳市三安电子有限公司 | Full-automatic outlet actinobacillus device and the automatic bonding equipment of LED |
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| CN219234209U (en) * | 2023-01-20 | 2023-06-23 | 浙江明鑫热处理设备有限公司 | Air blowing mechanism for nitrogen protection aluminum brazing furnace |
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| Publication number | Publication date |
|---|---|
| CN116551108A (en) | 2023-08-08 |
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