CN105108262A - Automatic circuit board straight-insert device welding machine - Google Patents
Automatic circuit board straight-insert device welding machine Download PDFInfo
- Publication number
- CN105108262A CN105108262A CN201510641354.9A CN201510641354A CN105108262A CN 105108262 A CN105108262 A CN 105108262A CN 201510641354 A CN201510641354 A CN 201510641354A CN 105108262 A CN105108262 A CN 105108262A
- Authority
- CN
- China
- Prior art keywords
- wiring board
- conduit
- welding machine
- welder
- automatic welding
- 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
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0016—Brazing of electronic components
-
- 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
- B23K3/0638—Solder feeding devices for viscous material feeding, e.g. solder paste feeding
-
- 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
-
- 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
Abstract
The invention relates to an automatic circuit board straight-insert device welding machine which comprises a machine frame, a driving assembly, a welding device and a turning structure. The driving assembly is installed at the upper portion of the machine frame and provided with the welding device and drives the welding device to horizontally reciprocate. The turning structure is installed at the corresponding portion, below the welding device, in the machine frame. According to the welding machine, liquid soldering tin can be evenly distributed on welding spots through high-pressure air spraying, holes of the welding spots can be well filled with the soldering tin due to a certain initial speed, the solder splash accumulation problem is solved, welding quality is effectively ensured, and product percent of pass is increased.
Description
Technical field
The invention belongs to wiring board welding field, relate to the welding of direct plugging-in electronic device, especially a kind of wiring board direct inserting device automatic welding machine.
Background technology
On wiring board, device is divided into patch-type and direct plugging-in, and wherein direct plugging-in device welding manner is: use electric iron by melts soldering tin, utilize the mobility of gravity and liquid, flow into by scolding tin in solder joint hole, fixed by straight cutting plug-in unit after waiting scolding tin naturally to cool.The welding efficiency of this method is low, and liquid solder has certain viscosity to be bonded on solder horn not easily to fall, and solder horn is oxidizable, and introduce impurity effect welding quality, electric iron temperature is higher easily to be scorched components and parts and wiring board.
At present, wiring board batch production adopts crest welder usually, its operation principle adopts heater that melts soldering tin is become liquid, then the wiring board bottom surface being plugged components and parts is skimmed over from liquid solder, make the solder joint of components and parts and wiring board dip scolding tin, wait for that straight cutting components and parts are fixed by solder cools.This method complex process involves great expense, and has can not welding or needing specially treated of sticking-element, easily cause the accumulation of scruff, affect welding quality bottom surface.
Through retrieval, find the technology of publication of following near field:
A kind of high-temperature crest soldering machine (publication number CN102151932B), comprise shell, thermal insulation layer, molten tin bath, controller, motor and transmission mechanism, thermal insulation layer and molten tin bath are all arranged in shell, crest generation trough is also installed in shell, temperature visits device and heat-generating pipe, crest generation trough is connected with molten tin bath, in crest generation trough, be provided with startup blade, the top of crest generation trough is connected with nozzle, starts blade and is connected with transmission mechanism; Temperature visits the inside that device is applied in thermal insulation layer, molten tin bath and crest generation trough, and one end that heat-generating pipe visits device with temperature is all connected with controller by control circuit.Structure of the present invention is simple, volume is little, the temperature in molten tin bath can be made significantly to be increased to 500 DEG C and to reach above, welding work pieces surface attachment can also be avoided to have residue, save the work of work and follow-up clean solder side tin face cleaned before each scolding tin, improve quality and the operating efficiency of product, and reduce the dependence of workman to qualification.
A kind of wave-soldering unit tin stove (notification number CN202344077U), comprise body of heater and be located at the flue in body of heater, spray tin passage is provided with in flue, spray tin passage is divided into the first spray tin passage and the second spray tin passage by baffle region, first spray tin passage is communicated with flue respectively with the second spray tin channel bottom and top is respectively equipped with the first spout and the second spout, in the first spray tin passage and the second spray tin passage, be respectively equipped with the first impeller and the second impeller.First spray tin passage and the second spray tin passage of wave-soldering unit tin stove of the present utility model pass through baffle interval, the spacing of two spouts is zero, and then is connected from two kinds of difform liquid tin crests that the first spout and the second spout produce and forms combination type crest.Gap cooling can not be produced in plate welding process between two spouts, second time welding can not be caused, and then improve welding quality.Two spouts are from tin face close together, and the time of contact of liquid tin and air is shorter, reduces the oxidation of tin, cost-saving.
Comparative analysis, there is bigger difference in above public technology, and the technical problem of its final result and the effect that finally reaches also exist larger difference compared with the technical scheme of present patent application.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, provide that a kind of structure is simple, design science, reliability are high, the wiring board direct inserting device automatic welding machine of raising efficiency.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of wiring board direct inserting device automatic welding machine, is characterized in that: comprise frame, driven unit, welder and overturn structure, be provided with driven unit at upper rack, and driven unit erecting and welding device also drives welder to carry out horizontal reciprocating to move; In frame corresponding below welder, an overturn structure is installed.
And described driven unit comprises driving crossbeam and travelling arm, install drive crossbeam in upper rack horizontal boom formula, drive installation one travelling arm on driving crossbeam, this travelling arm bottom is provided with a welder.
And, described welder comprises shell, conduit, manifold and nozzle, travelling arm lower end is fixed with the shell of welder, in the middle part of shell, side is shaped with charging hole, be coaxially installed with a conduit in the enclosure, the sealing of this conduit upper end is communicated with the heating control apparatus be arranged in frame, and the connection of conduit lower seal is shaped with many manifolds, and shell lower surface is passed and the nozzle that is tightly connected in conduit lower end.
And the conduit top in described shell is provided with a switch electromagnetic valve.
And be provided with a heater on conduit, pressure-sustaining gas temperature controls between 200 DEG C-450 DEG C.
And the angle of described nozzle and conduit axis is 0 ° to 90 °.
And described conduit, manifold and nozzle all adopt stainless steel or titanium alloy to make.
And, overturn structure comprises wiring board fixed form and drive unit, rotate adjustment in frame below welder and be provided with a wiring board fixed form, the horizontal side of this wiring board fixed form is provided with drive unit, and this drive unit drives wiring board fixed form to overturn.
And drive unit concrete structure comprises substrate, Controlling solenoid valve, cylinder, crank and connecting rod, be fixed with a substrate in frame lower, on this substrate, horizontal cross is provided with a cylinder, and cylinder is by being connected with Controlling solenoid valve; The push rod end of cylinder is provided with crank, and the end of this crank is hinged with one end of connecting rod, and the other end hinge of this connecting rod is contained in the side of a wiring board fixed form.
And, the fixing patrix that wiring board fixed form is coordinated by relative spiral-lock and fixing counterdie form, at the hinge dress drive unit of the horizontal side of fixing patrix, the fixing counterdie of horizontal other end hinge dress of fixing patrix, longitudinal both sides in the middle part of fixing counterdie are cut with scissors respectively and are contained in fixed axis, and fixed axis is arranged on the inwall of frame lower both sides.
Advantage of the present invention and good effect are:
1, this soldering apparatus uses pressure-air injection liquid solder can be evenly distributed on solder joint by scolding tin, owing to there being certain initial velocity, scolding tin can be made to fill up solder joint hole preferably, because welder does not touch wiring board and components and parts, so element can not be burnt out, also wiring board temperature distortion can not be made.
2, this soldering apparatus welds one by one to single solder joint, so can not destroy other sticking-elements, avoids the problem producing scruff accumulation, effectively ensures welding quality, improving product qualification rate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is another working state structure schematic diagram of the present invention;
Fig. 3 is automatic turning structural representation;
Fig. 4 is automatic soldering device structural representation.
Attached number in the figure representative: 1 frame, 2 heating controllers, 3 drive crossbeam, 4 travelling arms, 5 welders, 6 Controlling solenoid valve, 7 wiring board fixed moulds, 8 fixed axis, 9 connecting rods, 10 cranks, 11 cylinders, 12 substrates, 13 reaction springs, 14 switch electromagnetic valves, 15 heaters, 16 conduits, 17 charging holes, 18 manifolds, 19 heat insulating mattress, 20 scolding tin, 21 shells, 22 nozzles, 23 straight cutting components and parts; 7-1 fixes patrix, and 7-2 fixes counterdie.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of wiring board direct inserting device automatic welding machine, comprise frame 1, driven unit, welder 5 and overturn structure, be provided with driven unit at upper rack, driven unit is used for erecting and welding device, and drives welder to carry out horizontal reciprocating to move; Be provided with an overturn structure in frame corresponding below welder, this overturn structure is used for limit mounting wiring board to be welded and drives wiring board to be welded to carry out angle upset.
Driven unit comprises driving crossbeam 3 and travelling arm 4, install in upper rack horizontal boom formula and drive crossbeam, drive installation one travelling arm on driving crossbeam, this travelling arm bottom is provided with a welder, and travelling arm moves horizontally along driving crossbeam thus drives welder to move.
As shown in Figure 4, welder comprises shell 21, conduit 16, manifold 18 and nozzle 22 to the internal structure of welder, and travelling arm lower end is fixed with the shell of welder, and shell is cylindrical tube structure, is loaded with and is molten into liquid scolding tin 20 in shell; In the middle part of shell, side is shaped with charging hole 17, is hinged with cover plate outside this charging hole, and charging hole is for dropping into tin material and observing tin amount.
Be coaxially installed with a conduit in the enclosure, the sealing of this conduit upper end is communicated with the heating control apparatus 2 be arranged in frame, and the heating-up temperature of the pressure-sustaining gas of this heating control apparatus control inputs conduit, makes the temperature of pressure-sustaining gas higher than scolding tin fusing point; The generation of pressure-sustaining gas can adopt adjustable speed blower fan blow air to produce, or uses air compressor to produce, and enters conduit after the removal of impurity after filtration, and the pressure of pressure-sustaining gas should be standard atmospheric pressure, and pressure maximum is not more than three times of standard atmospheric pressures.
Conduit top in shell is provided with a switch electromagnetic valve 14, and this switch electromagnetic valve can control the unidirectional break-make of gas, also can regulate air quantity simultaneously;
The connection of conduit lower seal is shaped with many manifolds, and manifold apertures stretches into bottom the scolding tin of the fusing in shell downwards, for extracting scolding tin; Shell lower surface is passed and the nozzle that is tightly connected in conduit lower end, and nozzle and conduit axis have the angle of 0 °-90 °, are applicable to various different welding situation.
Nozzle, conduit and manifold all adopt stainless steel or other fusing points higher than scolding tin and metal material such as the titanium alloy etc. that under high temperature, free from admixture is separated out is made.
Conduit between manifold and switch electromagnetic valve is provided with a heater 15, heater can adopt the modes such as general heating wire heat gas and keep temperature constant by temperature sensor feedback, ensure the fusing point of temperature higher than scolding tin, heater fusing scolding tin also keeps temperature constant by temperature sensor feedback to temperature controller, temperature is controlled between 200 DEG C-450 DEG C and adjustable.
In order to increase gas flow rate, being made as inverted-cone shape tubular construction to the conduit between nozzle below heater, being beneficial to extraction liquid solder.
In order to ensure the utilization rate of scolding tin, shell lower end is made as the bucket shape structure of taper cone barrel, and is coated with one deck heat insulating mattress 19 at the outer casing inner wall of welder, ensures that furnace heat does not scatter and disappear, and also protects the object outside welder not to be subject to high temperature injury.
This welder designs according to bernoulli principle, when passing through the gas of HTHP in nozzle, there is pressure difference in liquid molten tin two ends, molten tin is drawn out of and enters nozzle, be injected on the components and parts solder joint of wiring board, can, by realizing the control to soldering tin amount to the flow-control of gases at high pressure, utilize the raw pressure differential of high-speed air flow movable property to spray scolding tin welding straight cutting components and parts 23.
Overturn structure is as shown in accompanying drawing 1 to 3, overturn structure comprises wiring board fixed form 7 and drive unit, rotate adjustment in frame below welder and one wiring board fixed form is installed, the horizontal side of this wiring board fixed form is provided with drive unit, and this drive unit drives wiring board fixed form to overturn.
Drive unit concrete structure comprises substrate 12, Controlling solenoid valve 6, cylinder 11, crank 10 and connecting rod 9, is fixed with a substrate in frame lower, and on this substrate, horizontal cross is provided with a cylinder, and cylinder is by being connected with Controlling solenoid valve; The push rod end of cylinder is provided with crank, and the end of this crank is hinged with one end of connecting rod, and the other end hinge of this connecting rod is contained in the side of a wiring board fixed form;
In order to ensure thrust-neutral, the equal symmetry in longitudinal both sides of circuit fixed form is hinged with a connecting rod, and connecting rod symmetry hinge is contained in crank end, and the connecting rod of both sides is subject to cylinder motive force synchronous push-and-pull wiring board fixed form.
The concrete structure of wiring board fixed form is see shown in accompanying drawing 3, the fixing patrix 7-1 that wiring board fixed form is coordinated by relative spiral-lock and fixing counterdie 7-2 forms, at the hinge dress drive unit of the horizontal side of fixing patrix, the fixing counterdie of horizontal other end hinge dress of fixing patrix, longitudinal both sides in the middle part of fixing counterdie are cut with scissors respectively and are contained in fixed axis 8, fixed axis is arranged on the inwall of frame lower both sides, and fixed form can fixed axis be that rotation is carried out in axle center; Pass through the transmission of crank and connecting rod during Telescopic-cylinder, thus drive wiring board fixed form to overturn.
Between a horizontal side end and frame of wiring board fixed form, be provided with a reaction spring 13, reaction spring provides elastic force auxiliary line plate fixed form to depart from dead-centre position.
Drive unit can be programmed by external software and be controlled, thus realizes the different free degree motions of welder, is not described in detail herein for control circuit and program.
The method of work of this welder, concrete steps are:
(1) locating lines plate, sandwiches wiring board to be welded and electric elements between fixing patrix and fixing counterdie, and will fix patrix and fixing counterdie fastening;
(2) regulate welding position, overturn structure drives wiring board to overturn, and wiring board reaches welding job position;
Controlling solenoid valve control cylinder expanding-contracting action, when connecting rod promotes fixing patrix rotation, first, fixing patrix and fixing counterdie fastening, ensure that components and parts do not drop, and fixes patrix afterwards and rotate realization upset together with fixing counterdie, when cylinder arrives range, linkage is in dead-centre position, and keeps level (shown in accompanying drawing 1 state), and now welder starts to weld;
(3) weld, according to setting program, driven unit drives welder to move, and welds one by one the solder joint of wiring board;
Welder arrives the bond pad locations on corresponding line plate, and the pure and gas of constant pressure is by conduit under the control of magnetic valve, and gas temperature reaches or higher than the fusing point of scolding tin, ensure scolding tin conduit and injected time can not solidify;
Simultaneously, heater continuous heating to scolding tin fusing point and keep temperature, scolding tin is made to remain on the liquid state of fusing, the constant pressure air of high temperature and high speed passes through nozzle, now, liquid scolding tin is drawn into conduit from manifold, and scolding tin is along with gas jetting nozzle in conduit, be ejected on the solder joint of wiring board, after cooling, complete the welding of straight cutting components and parts;
According to the size of solder joint, by the break-make of switch electromagnetic valve to the control of gas flow, flow velocity, just can control the soldering tin amount sprayed, its correlation can be derived by Bernoulli equation, i.e. p1+1/2 ρ v12+ ρ gh1=p2+1/2 ρ v22+ ρ gh2.
After completing the welding of a solder joint, driven unit drives welder to move to a next bond pad locations and welds;
(4) complete welding, after completing the welding of whole solder joint, overturn structure drives wiring board to recover initial position, has taken off the wiring board of welding.
After welding terminates, be subject to there is reaction spring effect between fixed form patrix and frame, the making a concerted effort of spring force and cylinder pulling force make linkage leave dead-centre position, rotate and get back to initial position (shown in accompanying drawing 2 state), open fixing patrix and fixing counterdie, take off wiring board.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (10)
1. a wiring board direct inserting device automatic welding machine, it is characterized in that: comprise frame, driven unit, welder and overturn structure, be provided with driven unit at upper rack, driven unit erecting and welding device also drives welder to carry out horizontal reciprocating to move; In frame corresponding below welder, an overturn structure is installed.
2. wiring board direct inserting device automatic welding machine according to claim 1, it is characterized in that: described driven unit comprises driving crossbeam and travelling arm, install in upper rack horizontal boom formula and drive crossbeam, drive installation one travelling arm on driving crossbeam, this travelling arm bottom is provided with a welder.
3. wiring board direct inserting device automatic welding machine according to claim 1, it is characterized in that: described welder comprises shell, conduit, manifold and nozzle, travelling arm lower end is fixed with the shell of welder, in the middle part of shell, side is shaped with charging hole, be coaxially installed with a conduit in the enclosure, the sealing of this conduit upper end is communicated with the heating control apparatus be arranged in frame, and the connection of conduit lower seal is shaped with many manifolds, and shell lower surface is passed and the nozzle that is tightly connected in conduit lower end.
4. wiring board direct inserting device automatic welding machine according to claim 3, is characterized in that: the conduit top in described shell is provided with a switch electromagnetic valve.
5. wiring board direct inserting device automatic welding machine according to claim 3, it is characterized in that: on conduit, be provided with a heater, pressure-sustaining gas temperature controls between 200 DEG C-450 DEG C.
6. wiring board direct inserting device automatic welding machine according to claim 3, is characterized in that: the angle of described nozzle and conduit axis is 0 ° to 90 °.
7. wiring board direct inserting device automatic welding machine according to claim 3, is characterized in that: described conduit, manifold and nozzle all adopt stainless steel or titanium alloy to make.
8. wiring board direct inserting device automatic welding machine according to claim 1, it is characterized in that: overturn structure comprises wiring board fixed form and drive unit, rotate adjustment in frame below welder and one wiring board fixed form is installed, the horizontal side of this wiring board fixed form is provided with drive unit, and this drive unit drives wiring board fixed form to overturn.
9. wiring board direct inserting device automatic welding machine according to claim 8, it is characterized in that: drive unit concrete structure comprises substrate, Controlling solenoid valve, cylinder, crank and connecting rod, a substrate is fixed with in frame lower, on this substrate, horizontal cross is provided with a cylinder, and cylinder is by being connected with Controlling solenoid valve; The push rod end of cylinder is provided with crank, and the end of this crank is hinged with one end of connecting rod, and the other end hinge of this connecting rod is contained in the side of a wiring board fixed form.
10. wiring board direct inserting device automatic welding machine according to claim 8, it is characterized in that: the fixing patrix that wiring board fixed form is coordinated by relative spiral-lock and fixing counterdie form, at the hinge dress drive unit of the horizontal side of fixing patrix, the fixing counterdie of horizontal other end hinge dress of fixing patrix, longitudinal both sides in the middle part of fixing counterdie are cut with scissors respectively and are contained in fixed axis, and fixed axis is arranged on the inwall of frame lower both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510641354.9A CN105108262B (en) | 2015-10-08 | 2015-10-08 | A kind of wiring board direct inserting device automatic welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510641354.9A CN105108262B (en) | 2015-10-08 | 2015-10-08 | A kind of wiring board direct inserting device automatic welding machine |
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| Publication Number | Publication Date |
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| CN105108262A true CN105108262A (en) | 2015-12-02 |
| CN105108262B CN105108262B (en) | 2017-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510641354.9A Active CN105108262B (en) | 2015-10-08 | 2015-10-08 | A kind of wiring board direct inserting device automatic welding machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520518A (en) * | 2017-08-28 | 2017-12-29 | 钟光文 | A kind of circuit board soldering tin servicing unit |
| CN108174526A (en) * | 2017-12-12 | 2018-06-15 | 宁波隆锐机械制造有限公司 | A kind of welding circuit board method |
| CN111604562A (en) * | 2020-05-29 | 2020-09-01 | 苏州恊合自动化科技有限公司 | Efficient and automatic tin soldering process for chip common-mode inductor |
| CN112872534A (en) * | 2021-02-26 | 2021-06-01 | 深圳市琳琳祥实业有限公司 | Collect tin and remove integrative semi-automatic tin soldering pen of tin |
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| WO2008023461A1 (en) * | 2006-08-21 | 2008-02-28 | Mitsuo Ebisawa | Soldering iron, method for manufacturing electronic apparatus by using it, amd manufacturing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107520518A (en) * | 2017-08-28 | 2017-12-29 | 钟光文 | A kind of circuit board soldering tin servicing unit |
| CN108174526A (en) * | 2017-12-12 | 2018-06-15 | 宁波隆锐机械制造有限公司 | A kind of welding circuit board method |
| CN111604562A (en) * | 2020-05-29 | 2020-09-01 | 苏州恊合自动化科技有限公司 | Efficient and automatic tin soldering process for chip common-mode inductor |
| CN112872534A (en) * | 2021-02-26 | 2021-06-01 | 深圳市琳琳祥实业有限公司 | Collect tin and remove integrative semi-automatic tin soldering pen of tin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105108262B (en) | 2017-03-29 |
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