CN107931768A - A kind of vacuum brazing stove and welding procedure - Google Patents
A kind of vacuum brazing stove and welding procedure Download PDFInfo
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- CN107931768A CN107931768A CN201711480242.5A CN201711480242A CN107931768A CN 107931768 A CN107931768 A CN 107931768A CN 201711480242 A CN201711480242 A CN 201711480242A CN 107931768 A CN107931768 A CN 107931768A
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- welding
- tablet
- bell
- negative pressure
- carrying
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Classifications
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- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- 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
- B23K3/047—Heating appliances electric
- B23K3/0478—Heating appliances electric comprising means for controlling or selecting the temperature or power
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
- Tunnel Furnaces (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A kind of vacuum brazing stove and welding procedure, belong to vacuum welding technical field.It is characterized in that：Welding bench（20）Side close to feed end is heating zone, welding bench（20）Side close to discharge end is cooling zone, and heating zone is provided with the upside of one end of cooling zone takes out negative pressure module（9）, take out negative pressure module（9）It is liftable to be installed on bell（4）On, take out negative pressure module（9）Bottom is encircled into closed negative pressure cavity, welding booth with heating zone（18）Or bell（4）On be provided with protection gas air inlet pipe.The heating zone of this vacuum brazing stove can heat tablet; so that tablet in negative pressure cavity can rapid welding complete; protection gas can avoid tablet in heating process from reacting with oxygen, and cooling zone can cool down tablet, avoid tablet and aoxidized；This welding procedure reduces weld interval, improves speed of welding, and cooling zone can either ensure that cooling is thorough, and avoids cooling down and too fast cause tablet to deform.
Description
Technical field
A kind of vacuum brazing stove and welding procedure, belong to vacuum welding technical field.
Background technology
Diode, triode, silicon-controlled or bridge when electronic component is in production, it is necessary to upper tablet and lower tablet it
Between welding chip, the technique be referred to as close piece.The specific work process for closing piece is as follows：Brushed firstly the need of in the upside of lower tablet
Tin cream, and chip is placed on to the specific location of lower tablet, then upper tablet that downside is painted with to tin cream overlays blanking
On the upside of piece, then mould head cover will be welded and covered on welding baffle plate, finally welding mould is sent into soldering furnace and is welded.Tablet
Welding need to carry out in a vacuum furnace.
The Chinese utility model patent of Application No. 201420820418.2 discloses a kind of continuity vacuum brazing stove, its
Have the following technical problems in use：
（1）One and the matched heating zone of vacuum treatment installation are only provided only with its board, due to needing to heat tablet
It just can melt tin cream to certain temperature and play welding effect, and the heating of tablet needs the mobile time, so as to cause to add
Hot time length, and since its heating zone is arranged on upper lid, tablet is heated using radiation in heating zone, heat transfer efficiency compared with
It is low, so as to further increase the heating time of tablet, make its welding efficiency relatively low；
（2）In order to facilitate conveying of the transmission mechanism to tablet, it is necessary to which plummer is stretched out at the both ends of tablet, transmission mechanism passes through tablet
Tablet is held up and conveyed by the extension at both ends, and since the tablet after heating is softer, the extension at tablet both ends can be downward
Bending, so as to cause the position of the chip at tablet both ends can not be aligned with the contact of tablet, so as to cause to occur not conforming to largely
Lattice product；
（3）Tablet temperature after welding is excessive, and cooling velocity is slower, and tablet is oxidized easily after removing vacuum treatment installation, and
And the tablet temperature for removing board is still excessive, worker directly can not be handled tablet.
The content of the invention
The technical problem to be solved in the present invention is：One kind is overcome the deficiencies of the prior art and provide in material handling process
Tablet is heated, speed of welding is fast and avoids the vacuum brazing stove and welding procedure of tablet oxidation.
The technical solution adopted by the present invention to solve the technical problems is：The vacuum brazing stove, including welding booth, bell with
And carrying mechanism, bell are covered on the upside of welding booth, and welding chamber is formed between welding booth and bell, welding booth lower part is equipped with
Welding bench, it is characterised in that：The welding bench is heating zone close to the side of feed end, and welding bench is close to the side of discharge end
For cooling zone, heating zone is provided with the upside of one end of cooling zone takes out negative pressure module, takes out that negative pressure module is liftable to be installed on
On bell, take out negative pressure module bottom and heating zone and be encircled into closed negative pressure cavity, be provided with welding booth or bell protection gas into
Tracheae.
Preferably, the welding bench includes polylith heating plate and polylith coldplate, and polylith heating plate is spliced into heating
Area, polylith coldplate are spliced into cooling zone.
Preferably, the both sides of the heating plate described in every piece are symmetrically arranged with electrothermal tube, and biography is provided with the middle part of heating plate
Sensor mounting hole, sensor mounting hole are the blind hole being arranged between two electrothermal tubes, and temperature biography is provided with sensor mounting hole
Sensor.
Preferably, the both sides of the coldplate described in every piece are symmetrically arranged with intake tunnel, and at least one end of coldplate is set
There is the drainage channel connected with two intake tunnels.
Preferably, liquid-collecting cover is provided with the downside of the welding booth, the two bottom sides of liquid-collecting cover are by sidepiece to middle part
Gradually downward skewed, liquid-collecting cover bottom is equipped with liquid-collecting cover outlet tube.
Preferably, the protection gas air inlet pipe is main nitrogen inlet duct, and the both ends of bell are both provided with main nitrogen air inlet
Pipe, the on both sides of the middle of bell are symmetrically arranged with secondary nitrogen inlet duct, and secondary nitrogen inlet duct is connected with welding booth.
Preferably, the bell lower part both sides are symmetrically arranged with inlet plate, and the top of inlet plate is equipped with upside opening
Air inlet, and inlet chamber is encircled into bell, multiple jets for connecting air inlet with welding booth are arranged at intervals with inlet plate
Hole, secondary nitrogen inlet duct are connected with air inlet.
Preferably, the carrying mechanism includes elevating mechanism, the translation machine carried bar and be arranged on the downside of welding booth
Structure and open-and-close mechanism, carry bar and are symmetrically arranged with two, and carry and be arranged in the middle part of bar in welding booth, open-and-close mechanism at the same time with
Two carrying bars are connected and drive its folding, and translation mechanism is connected with open-and-close mechanism and drives it along closer or far from discharge end
Direction is moved, and elevating mechanism is connected with translation mechanism and drives its lifting, and each carry is equipped with multiple supporting parts on bar, welds
Platform both ends are equipped with multiple resigning mouthfuls, and resigning mouthful is corresponded with supporting part.
Preferably, the both ends of the welding booth are closed by end cap, and the both sides of each end cap, which are symmetrically arranged with, removes
Mouth is transported, bar is carried and is connected through carrying port with open-and-close mechanism, bottom and the welding bench of end cap are arranged at intervals.
Preferably, each end cap both ends are symmetrically arranged with baffle mounting groove, and plane is with removing where baffle mounting groove
Transport the central axis of bar, be slidably fitted with baffle in baffle mounting groove, baffle is slided and is tightly connected with carrying bar, baffle and
The end cap of respective side is engaged the end part seal of welding booth.
Preferably, each end cap both sides are symmetrically arranged with baffle mounting groove, and plane is with removing where baffle mounting groove
Transport the central axis of bar, be slidably fitted with baffle in baffle mounting groove, baffle is slided and is tightly connected with carrying bar, baffle and
The end cap of respective side is engaged the end part seal of welding booth.
Preferably, the open-and-close mechanism includes horizontally disposed folding guide plate and folding power plant module, folding are led
Between two carrying bars are arranged on to plate, the both sides of folding guide plate, which are equipped with along close to the direction of discharge end is gradually inside, inclines
Ramp-like folding guide part, it is each to carry the folding directive wheel for being mounted on fitting on the downside of bar with folding guide part, two
The folding spring in extended state is equipped between carrying bar, folding power plant module is connected with folding guide plate and drives its edge to lean on
Moved close or remote from the direction of discharge end.
Preferably, the elevating mechanism includes lifting guide pad and lifting cylinder, is provided with the upside of lifting guide pad
Along the skewed lifting guide part close to the direction of discharge end gradually downward, it is provided with the downside of translation mechanism and is oriented to lifting
The lifting directive wheel that portion fits, the piston rod of lifting cylinder are connected with lifting guide pad and promote it along closer or far from discharging
The direction movement at end.
Preferably, the pumping negative pressure module includes sealing plate and takes out negative pressure lifting cylinder, and sealing plate is arranged on heating
It is arranged in parallel on the upside of area and with heating zone, bottom and the heating zone of sealing plate are encircled into the negative pressure cavity of closing, and negative pressure cavity is connected with
Take out negative tube.
Preferably, the sealing plate is arranged on the downside of bell, is taken out negative pressure lifting cylinder and is arranged on the upside of bell, takes out negative pressure
The piston rod of lifting cylinder is connected by connecting tube with sealing plate, and connecting tube connects negative pressure cavity with taking out negative tube.
Preferably, cleaning module is further included, the inlet end of cleaning module and outlet side are connected with welding booth.
Preferably, the cleaning module includes purifying box and the coil pipe and strainer that are arranged in purifying box, inlet end
It is separately positioned on the both sides of purifying box with outlet side, strainer sets by near outgassing end and closes outlet side, filled with following in coil pipe
The coolant of ring, wind turbine is provided between the outlet side and welding booth of purifying box.
Preferably, the cleaning module further includes the fin being arranged in purifying box.
A kind of welding procedure of above-mentioned vacuum brazing stove, it is characterised in that：Include the following steps：
1）Bell closes welding booth, and protection gas air inlet pipe pours protection gas into welding booth；
2）Tablet is carried in negative pressure cavity by carrying mechanism piecewise, and the tablet in handling process is progressively heated in heating zone；
3）Carrying mechanism carries the tablet that completion is welded in negative pressure cavity to discharge end, and cooling zone carries out tablet progressively cold
But.
Compared with prior art, beneficial effect possessed by the present invention is：
1st, the heating zone of this vacuum brazing stove can heat tablet, so that tablet being capable of rapid welding in negative pressure cavity
Complete, filled with protection gas in welding booth, so as to avoid tablet in heating process from reacting with oxygen, cooling zone can be right
Tablet is cooled down, so that the tablet temperature for removing welding booth is low, that is, is avoided tablet and is aoxidized, and convenient in time to welding
Good tablet is handled, and to being not in since the excessive mutability of tablet temperature causes to treat in web process
Tablet deforms in journey, and the problem of causing disqualification rate to raise, tablet is directly contacted with heating zone or cooling zone, passes through heat transfer
Mode realizes heating and cooling, compared with using the mode of heating of radiation, substantially increases firing rate, enables tablet fast
The heating and cooling of speed, reduce the consumption of energy.
2nd, polylith heating plate is spliced into heating zone, and polylith coldplate is spliced into cooling zone, same in welding booth so as to make
Shi Rongna polylith tablets, heating zone at the same time heat polylith tablet, tablet is rapidly achieved welding temperature, improve
Speed of welding.
3rd, electric heating tube and temperature sensor are equipped with every piece of heating plate, every piece of heating plate is realized independent temperature
Control, so as to progressively be heated in material handling process to tablet, avoid heating it is too fast cause tablet to deform, also
Avoid heating it is too fast cause tin cream to melt and flow out, cause defective work occur.
4th, intake tunnel and exhalant canal are both provided with every piece of coldplate, realize and progressively cool down to tablet, kept away
The too fast tin cream caused after solidification of exempting to cool down is cracked, causes chip and tablet loose contact, defective work occurs, also can
Tablet is avoided to deform.
5th, cooling zone can be condensed the liquid to be formed and be discharged by liquid-collecting cover outlet tube by liquid-collecting cover.
6th, the both ends of bell are equipped with main nitrogen inlet duct, and bell on both sides of the middle is arranged with secondary nitrogen inlet duct, so as to
Enough ensure that nitrogen is rapidly filled with welding booth, the time before welding is short, easy to use.
7th, secondary nitrogen inlet duct is uniformly sprayed into nitrogen in welding booth by inlet plate, indoor so as to weld
Air is emptied completely, and is avoided the tablet after heating and is reacted with oxygen.
8th, open-and-close mechanism drives two carrying bar foldings, and is engaged with elevating mechanism, supporting part is stretched into welding bench
In resigning mouthful, and by the way that the both ends of tablet are held up tablet, translation mechanism drives tablet to translate by carrying bar, so as to complete
The translation work of tablet.
9th, carry bar and welding booth is stretched out by carrying port, and be connected with open-and-close mechanism, not only realize indoor to welding
Tablet is carried, additionally it is possible to tablet is carried in welding booth, and the tablet being welded in welding booth is carried to welding
Outdoor, bell need not be opened being movable into and out for tablet can be achieved in welding process.
10th, baffle is moved with the movement for carrying bar in baffle mounting groove, so as in time close welding booth, is kept away
Protection gas leakage is exempted from, has reduced the consumption of protection gas, thereby reduce welding cost.
11st, open-and-close mechanism is connected with the carrying and installation arm on the downside of welding booth, facilitates the connection for carrying bar.
12nd, folding power plant module promotes the movement of folding guide plate, and the folding guide part of folding guide plate is oriented to by folding
Wheel promotes two carrying bars synchronously to move in the opposite direction, and folding spring can make folding directive wheel compress folding guiding all the time
The folding guide part of plate, and then two carrying bar foldings are realized, facilitate the carrying of tablet, additionally it is possible to avoid carrying bar negative to taking out
The work of die block counteracts, and the stroke for carrying bar is stablized, and end cap will not be damaged.
13rd, lifting cylinder promotes lifting guide pad translation, and the lifting guide part for lifting guide pad is pushed away by lifting directive wheel
Dynamic translation mechanism lifting, and then the synchronization lifting of two carrying bars is realized, it ensure that carrying bar lifting action stablizes, and lift
Stroke determine, welding booth will not be caused to damage.
14th, sealing plate and heating zone are encircled into negative pressure cavity, and taking out negative pressure lifting cylinder can drive sealing plate to lift, so that side
Just tablet is into and out negative pressure cavity.
15th, take out negative pressure lifting cylinder by connecting tube with sealing plate to be connected and drive sealing plate to lift, take out negative tube and pass through
Connecting tube is connected with negative pressure cavity, has not only facilitated the installation connection of sealing plate, but also facilitates the pumping negative pressure of negative pressure cavity.
16th, cleaning module can extract the indoor protection gas of welding, and except the solder paste steam in deprotection gas, avoid due to
Tin cream is excessive by thermogenetic solder paste steam, influences the welding of tablet.
17th, coil pipe is exchanged heat by the protection gas of coolant and extraction and reduces the temperature of protection gas, solder paste is liquefied, so
Protection gas is being filtered by strainer afterwards, solder paste is stayed on filter screen, it is achieved thereby that point by solder paste and protection gas
From.
18th, fin can increase coolant and protect the heat exchange area of gas, make protection gas fast cooling, so as to protect
The solder paste protected in gas is removed more thorough.
19th, this welding procedure is protected by protecting gas to welding indoor tablet, avoids the tablet and oxygen of high temperature
React, heating zone progressively can heat tablet, tablet temperature when moving in negative pressure cavity is reached welding
Temperature or close to welding temperature, the weld interval in negative pressure cavity can be rapidly completed welding, reduce weld interval, improve
Speed of welding, cooling zone progressively can cool down tablet, can either ensure that cooling is thorough, and can avoid cooling down too fast
Tablet is caused to deform.
Brief description of the drawings
Fig. 1 is the schematic perspective view of vacuum brazing stove.
Fig. 2 is the schematic perspective view of bell.
Fig. 3 is the main view schematic cross-sectional view of bell.
Fig. 4 is the partial enlarged view at A in Fig. 3.
Fig. 5 is the main view schematic cross-sectional view of inlet plate.
Fig. 6 is the schematic perspective view of vacuum brazing stove after removal bell.
Fig. 7 is the partial enlarged view at B in Fig. 6.
Fig. 8 is the schematic perspective view of welding bench.
Fig. 9 is that the right side of welding bench regards schematic diagram.
Figure 10 is the vertical view schematic cross-sectional view of heating plate.
Figure 11 is the vertical view schematic cross-sectional view of coldplate.
Figure 12 is the main view schematic cross-sectional view of welding booth's installed part.
Figure 13 is the main view schematic cross-sectional view of mounting pin.
Figure 14 is the schematic front view for taking out negative pressure module.
Figure 15 is the schematic perspective view of carrying mechanism.
Figure 16 is the schematic front view of carrying mechanism.
Figure 17 is the schematic perspective view of solder paste cleaning module.
Figure 18 is the main view schematic cross-sectional view of cleaning module.
In figure：1st, rack 2, carrying mechanism 3, bell cylinder 4, bell 5, main nitrogen inlet duct 6, guide housing 7, net
Change air inlet pipe 8, purification air outlet pipe 9, take out negative pressure module 10, linking arm 11, swing arm 12, installing arm 13, connecting rod 14,
Bell installing plate 1401, installing port 15, gas hood 16, secondary nitrogen inlet duct 17, inlet plate 1701, air inlet 1702, spray
Stomata 18, welding booth 19, discharge pedestal 1901, discharge pedestal resigning mouthful 20, welding bench 21, loading bay 2101, loading bay allow
Position mouth 22, installing plate 23, adjust spring 24, carry bar 25, sealing shroud 26, end cap 2601, carrying port 2602, baffle
Mounting groove 27, baffle 28, coldplate 2801, coldplate resigning mouthful 2802, intake tunnel 2803, drainage channel 2804,
Coldplate mounting hole 29, water inlet pipe 30, heating plate 3001, heating plate resigning mouthful 3002, electrothermal tube mounting hole 3003, biography
Sensor mounting hole 3004, heating plate mounting hole 31, electrothermal tube 32, temperature sensor 33, liquid-collecting cover 3301, liquid-collecting cover go out
Liquid pipe 34, take out negative pressure mounting bracket 35, take out negative pressure lifting cylinder 36, sealing plate 37, connecting tube 38, connecting plate 39, installation
Pin 3901, threaded hole 40, welding booth's installed part 4001, fixed part 4002, stepped hole 41, translation plates 42, folding installation
Bar 43, folding guide plate 44, folding directive wheel 45, carrying and installation arm 46, carrying lifting cylinder 47, lifting leading truck
48th, guide pad 49, pan carriage 50, pan carriage guide rail 51, translation panel guide 52, carrying and installation plate 53, translation motor are lifted
54th, translation motor mounting bracket 55, carrying movable stand 56, folding movable stand 57, folding motor mounting rack 58, folding motor
59th, cleaning module 60, oil feeding reservoirs 61, purifying box 62, purifying box air inlet pipe 63, strainer installs case 64, strainer 65, wind turbine
66th, solder paste collecting vessel 67, coil pipe 68, fin.
Embodiment
Fig. 1 ~ 18 are highly preferred embodiment of the present invention, and 1 ~ 18 the present invention will be further described below in conjunction with the accompanying drawings.
A kind of vacuum brazing stove, including welding booth 18, bell 4 and carrying mechanism 2, bell 4 are covered in welding booth 18
Side, and welding chamber is formed between welding booth 18 and bell 4,18 lower part of welding booth is equipped with welding bench 20, welding bench 20 it is close into
The side for expecting end is heating zone, and welding bench 20 is cooling zone close to the side of discharge end, and heating zone is on one end of cooling zone
Side, which is provided with, takes out negative pressure module 9, and pumping negative pressure module 9 is liftable to be installed on bell 4, takes out 9 bottom of negative pressure module and heating zone
Closed negative pressure cavity is encircled into, protection gas air inlet pipe is provided with welding booth 18 or bell 4.The heating zone energy of this vacuum brazing stove
It is enough that tablet is heated so that tablet in negative pressure cavity can rapid welding complete, filled with protection gas in welding booth 18, from
And tablet in heating process can be avoided to react with oxygen, cooling zone can cool down tablet, so that removing weldering
It is low to connect the tablet temperature of room 18, that is, avoids tablet and is aoxidized, and conveniently the tablet being welded is handled in time, and it is right
Be not in since the excessive mutability of tablet temperature causes tablet in processing procedure to deform in web process, cause unqualified
The problem of rate raises, tablet is directly contacted with heating zone or cooling zone, and heating and cooling are realized by way of heat transfer, with
Compared using the mode of heating of radiation, substantially increase firing rate, tablet is quickly heated up and is cooled down, reduce energy
The consumption of amount.
With reference to specific embodiment, the present invention will be further described, however persons familiar with the art it is to be appreciated that
It is to preferably explain here in connection with the detailed description that attached drawing provides, structure of the invention is inevitable beyond limited these
Embodiment, and for some equivalents or common approach, no longer it is described in detail herein, but still fall within the guarantor of the application
Protect scope.
Specifically：As shown in Figure 1：Welding booth 18 is the rectangular box body of upside opening, and the both ends of welding booth 18 are respectively
Feed end and discharge end, welding booth 18 are installed on the upside of rack 1, and carrying mechanism 2 is installed in the rack 1 of the downside of welding booth 18.
Bell 4 is installed on the upside of welding booth 18, and the upside of welding booth 18 is closed.Take out negative pressure module 9 to be arranged on bell 4, and take out
The lower end of negative pressure module 9 is stretched into welding booth 18 after passing through bell 4, is taken out negative pressure module 9 and is arranged between heating zone and cooling zone.
Taking out negative pressure module 9 can be provided with multiple, so as to improve speed of welding, can also set one.
The both ends of rack 1 are symmetrically arranged with linking arm 10, and the upper end of linking arm 10 is stretched out upwards, and the upper end of linking arm 10
Set higher than welding booth 18, the both ends of bell 4 are symmetrically arranged with installing arm 12, and installing arm 12 is horizontally disposed, each installing arm 12
One end be fixedly connected with bell 4, the upper end of the other end and linking arm 10 is rotatablely connected.Bell 4 is also associated with having driven folding
Bell cylinder 3, the piston rod of bell cylinder 3 is connected by connecting rod 13 and swing arm 11 with installing arm 12, installing arm 12 it is upper
End and the middle part of installing arm 12 are rotatablely connected, and the lower end of installing arm 12 is rotatablely connected with the middle part of connecting rod 13, one end of connecting rod 13
It is rotatablely connected with rack 1 or linking arm 10, the other end is connected with the piston rod rotation of bell cylinder 3, it is achieved thereby that bell 4
Open and close automatically.
As shown in Figure 2：Bell 4 includes the bell cover of upside and the bell installing plate 14 of downside, bell cover open for downside
Mouthful rectangular box body, bell installing plate 14 is cuboid plate, and bell installing plate 14 is arranged on the downside of bell cover and by bell
The lower mouth closing of cover.Installing arm 12 and pumping negative pressure module are installed on bell installing plate 14.
In the present embodiment, it is nitrogen to protect gas, and protection gas air inlet pipe is main nitrogen inlet duct 5, bell installing plate 14
Both ends are both provided with main nitrogen inlet duct 5, and bell cover is stretched out in the upper end of main nitrogen inlet duct 5, and each main nitrogen inlet duct 5 is upper
Side is both provided with a guide housing 6, guide housing 6 be disposed on the upside of the main nitrogen inlet duct 5 of respective side and with main nitrogen
The upper end of air inlet pipe 5 is arranged at intervals, and guide housing 6 is cylindrical shape, and guide housing 6 and main nitrogen inlet duct 5 are vertically arranged, guide housing
6 are arranged on the upside of bell cover, and guide housing 6 is coaxially disposed with main nitrogen inlet duct, guide housing 6 can pair with main nitrogen air inlet
The connected pipeline of pipe 5 is oriented to.Each gas hood 15, gas hood are both provided between main nitrogen inlet duct 5 and bell installing plate 14
It is gradually inside skewed from the bottom to top at left and right sides of 15 tops, gas hood 15 is arranged on bell installing plate 14 and bell cover
Between, the downside of gas hood 15 is open to be set, and the downside of gas hood 15 is fixedly connected with bell installing plate 14, and the downside of bell 4 is provided with
For the slot hole for connecting gas hood 15 with welding booth 18, so as to by protect gas and penetrating welding booth 18 in.
The upside of bell installing plate 14 is additionally provided with purification air inlet pipe 7 and purification air outlet pipe 8, purifies air inlet pipe 7 and purifies
Tracheae 8 is connected by gas hood 15 with welding booth 18, and purification air inlet pipe 7 and purification air outlet pipe 8 are arranged on and take out the same of negative pressure module 9
Side, so as to avoid nitrogen temperature is too low from causing solder paste liquefaction in welding booth 18, makes tablet temperature relatively low and then extends
Weld interval of tablet.Purification air outlet pipe 8 is connected with the inlet end of cleaning module 59, purification air outlet pipe 8 and cleaning module 59
Inlet end connection, so as to clear up the solder paste in tin cream by thermogenetic solder paste steam, avoid solder paste steam from influencing tablet
Welding.
As shown in Fig. 3 ~ 5：The on both sides of the middle of bell installing plate 14 is also symmetrically arranged with secondary nitrogen inlet duct 16.Secondary nitrogen into
Tracheae 16 is arranged on the upside of bell installing plate 14, and the outlet side of secondary nitrogen inlet duct 16 is connected with welding booth 18, so as to more
Add and uniformly spray into nitrogen into welding booth 18, ensure the nitrogen in welding booth 18 being completely exhausted out, avoid tablet heat after with
Oxygen reacts.It is provided with inlet plate 17 on the downside of the middle part of bell installing plate 14, inlet plate 17 is rectangular slab, inlet plate 17
Upside be provided with the air inlets 1701 of opening upwards, air inlet 1701 is the slot hole set along 17 length direction of inlet plate, stove
Every side of lid installing plate 14 is both provided with two inlet plates 17, and length direction of two inlet plates 17 along bell installing plate 14
It is arranged in order, is arranged at intervals with multiple fumaroles 1702 on each inlet plate 17 along its length, so as to ensures nitrogen
Gas is uniformly sprayed into welding booth 18.The downside of bell installing plate 14 is provided with the installing port 1401 of indent, installing port 1401 with
Inlet plate 17 corresponds, and the top of inlet plate 17 is installed in the installing port 1401 of bell installing plate 14, and each inlet plate
17 air inlet 1701 is encircled into inlet chamber, the outlet side of secondary nitrogen inlet duct 16 with the installing port 1401 of bell installing plate 14
Connected with inlet chamber, so that convenient spray into nitrogen into inlet chamber.
As shown in Fig. 6 ~ 7：Carrying mechanism 2 includes carrying bar 24 and is arranged on the elevating mechanism of the downside of welding booth 18, puts down
Telephone-moving structure and open-and-close mechanism, the middle part for carrying bar 24 are arranged in welding booth 18, and the both ends of welding booth 18 are closed by end cap 26,
And the both sides of each end cap 26 are both provided with carrying port 2601, carry bar 24 and be horizontally disposed with along the length direction of welding booth 18, and
Two carrying bars 24 are symmetricly set on the both sides of welding booth 18, and each both ends for carrying bar 24 both pass through the carrying port of end cap 26
2601 and stretch out.The lower horizontal of welding booth 18 is provided with carrying and installation arm 45, and carrying and installation arm 45 is a pair of with carrying bar 24 1
Should, carrying and installation arm 45 is arranged on the downside of carrying bar 24 of respective side, each both ends for carrying bar 24 by installing plate 22 with
The carrying and installation arm 45 of respective side is connected, and the upper end of installing plate 22 is connected with carrying bar 24, and the lower end of installing plate 22 is pacified with carrying
Fill arm 45 to be connected, elevating mechanism is installed in rack 1, and translation mechanism is installed on elevating mechanism, and open-and-close mechanism is installed on translation
In mechanism, and open-and-close mechanism is connected with two carrying bars 24 at the same time, it is achieved thereby that the folding of two carrying bars 24, lifting peace
It is mobile to make, facilitate the carrying of tablet.
It is provided between one end of each carrying bar 24 and installing plate 22 and adjusts spring 23, is adjusted spring 23 and be set in carrying
On bar 24, carry bar 24 and be slidably connected close to the one end for adjusting spring 23 with installing plate 22, adjust spring 23 and be arranged on installing plate
22 outsides, the one end for adjusting spring 23 are supported on installing plate 22, and the other end is supported on the end for carrying bar 24, so as to conveniently exist
The position adjusting spring 23 that axis is adjusted up carrying bar 24 can also play cushioning effect, avoid the impact produced in handling process
Load causes tablet to drop.
The downside of end cap 26 and the upside of welding bench 20 at 18 both ends of welding booth are arranged at intervals, so that at the both ends of welding booth 18
Feed end and discharge end are formed, and is the feed end of welding booth 18 close to one end of heating zone, is weldering close to one end of cooling zone
Connect the discharge end of room 18.The both ends of each end cap 26 are both provided with vertical baffle mounting groove 2602, in baffle mounting groove 2602
Baffle 27 is slidably fitted with, baffle 27 is slidably connected with carrying bar 24, and sealed set between baffle 27 and carrying bar 24, baffle
27 close carrying port 2601, so as to carry bar 24 carry tablet during baffle 27 with carry bar 24 in the institute of end cap 26
Planar move, baffle 27 is all the time closed carrying port 2601, avoid helium leak, also relieve big to carrying port 2601
Small limitation, and then can conveniently carry the setting of the movement locus of bar 24.Baffle 27 can also be by end cap 26 and welding bench 20
Between gap, i.e. feed end or discharge end closing, and open discharge end when carrying bar 24 and holding up tablet, facilitate material
Piece avoids helium leak into and out welding booth 18.Each both ends for carrying bar 24 are mounted on sealing shroud 25, each remove
Fortune bar 24 is slidingly and sealingly connected by sealing shroud 25 with baffle 27.
As shown in Figure 8：Welding bench 20 includes polylith heating plate 30 and polylith coldplate 28, and polylith heating plate 30 is along welding booth
18 length direction is set gradually, and forms heating zone, and polylith coldplate 28 is set gradually along the length direction of welding booth 18, is formed
Cooling zone, and cooling zone is set close to discharge end.Take out the upside of heating plate 30 that negative pressure module 9 is arranged close to cooling zone one end.
The both ends of each heating plate 30 are symmetrically arranged with heating plate resigning mouthful 3001, and the both ends of each coldplate 28 are symmetrically set
Coldplate resigning mouthful 2801 is equipped with, each carry is arranged at intervals with multiple supporting parts on bar 24, and supporting part is stretched into heating plate and allowed
Held up in position mouth 3001 or coldplate resigning mouthful 2801 and by the tablet lain on heating plate 30 or coldplate 28, enable tablet
Enough it is integrally placed in coldplate 28 or heating plate 30, avoids tablet from being heated softening, cause both ends to deform, and convenient takes out negative pressure
The sealing of module 9 and heating plate 30.
The both sides of each heating plate 30 are symmetrically installed with electrothermal tube 31, are set in the heating plate 30 between two electrothermal tubes 31
Temperature sensor 32 is equipped with, it is achieved thereby that the independent control of each heating plate 30, makes heating plate 31 along close to the side of discharge end
Gradually increase to temperature, so that being heated to tablet progressively, avoiding heating too fast causes tin cream to drip.On each coldplate 28
Water inlet pipe 29 is connected with, coldplate 28 cools down the tablet on cooling bench 28 by cooling water, and along close to discharge end
Direction, the temperature of cooling bench 28 gradually reduces, so as to progressively cool down to tablet, avoids the too fast tin cream for causing solidification that cools down
Split.
Loading bay 21 is provided with the outside of the feed end of welding booth 18, the both ends of loading bay 21 are both provided with to match with supporting part
The loading bay resigning mouthful 2101 of conjunction, tablet is placed on loading bay 21, and tablet can be carried to welding booth 18 by carrying mechanism 2
On interior welding bench 20.The discharge end of welding booth 18 is provided with discharge pedestal 19, and the both ends of discharge pedestal 19 are both provided with and supporting part
Matched discharge pedestal resigning mouthful 1901, tablet after cooling is carried on discharge pedestal 19 by carrying mechanism 2, so that this vacuum
Soldering furnace realizes successional welding, it is not necessary to opens bell 4 and discharging and charging can be achieved.
As shown in Figure 9：The bottom of welding booth 18 is provided with liquid-collecting cover 33, the both sides of liquid-collecting cover 33 be by sidepiece to middle part by
Gradually downward skewed, and the middle part both ends of liquid-collecting cover 33 are symmetrically arranged with liquid-collecting cover outlet tube 3301, liquid-collecting cover 33 can will
Cooling zone, which is liquefied, the drop collection to be formed and to be sent out outside welding booth 18, avoids the welding to tablet in welding booth 18 from causing to hamper
Hinder.
As shown in Figure 10：Heating plate 30 is rectangular slab, and the corner of heating plate 30 is provided with heating plate mounting hole 3004.
The both sides of heating plate 30 are symmetrically arranged with electrothermal tube mounting hole 3002, and electrothermal tube mounting hole 3002 is horizontally disposed through hole, often
An electrothermal tube 31 is mounted in a electrothermal tube mounting hole 3002, so as to ensure homogeneous heating.The middle part of heating plate 30
Horizontal sensor mounting hole 3003 is additionally provided with, sensor mounting hole 3003 is arranged in parallel with electrothermal tube mounting hole 3002
Blind hole, and the half that the length of sensor mounting hole 3003 is 30 length of heating plate, temperature sensor 32 are pacified installed in sensor
Fill in hole 3003, so as to detect the temperature of heating plate 30 in real time.
As shown in figure 11：Coldplate 28 is the length and width rectangle equal with the length and width of heating plate 30 respectively
Plate, the corner of coldplate 28 are provided with coldplate mounting hole 2804, and the both sides of coldplate 28 are symmetrically arranged with horizontal water inlet
Passage 2802, intake tunnel 2802 is set along the length direction of coldplate 28, and one end of coldplate 28 is provided with horizontal row
Aquaporin 2803, drainage channel 2803 connect two intake tunnels 2802, so that the temperature of whole coldplate 28 is uniform, it is cold
But effect is good.The both ends of drainage channel 2803 and intake tunnel 2802 are both provided with connecting portion, so as to facilitate water inlet pipe 29 and go out
The connection of water pipe.
As shown in Figure 12 ~ 13：Welding booth 18 is arranged on the upside of rack 1, and welding booth 18 passes through welding booth's installed part 40 and machine
Frame 1 is fixedly connected.The both sides of welding booth 18 are symmetrically arranged with multiple welding booth's installed parts 40, the downside two of welding booth's installed part 40
End is symmetrically arranged with downwardly projecting fixed part 4001, through hole is provided with fixed part 4001, welding booth's installed part 40 is by setting
The bolt put in 4001 through hole of fixed part is fixedly connected with rack 1.The both ends of welding booth's installed part 40 are symmetrically arranged with ladder
Hole 4002, the diameter on 4002 top of stepped hole are more than the diameter of lower part, are mounted on mounting pin 39 on each stepped hole 4002, pacify
Fill pin 39 to be cylindric, and the lower end of mounting pin 39 is coaxially arranged with threaded hole 3901, and threaded hole 3901 is is arranged on installation
Blind hole on pin 39, the diameter of mounting pin 39 is equal with the diameter on 4002 top of stepped hole, and ladder is stretched into the lower end of mounting pin 39
It is fixedly connected in the top in hole 4002 and by bolt with welding booth's installed part 40.3004 sets of the heating plate mounting hole of heating plate 30
The top of mounting pin 39 is located at, so as to complete the installation of heating plate 30, the coldplate mounting hole 2804 of coldplate 28 is set in peace
The top of pin 39 is filled, it is convenient for disassembly and assembly so as to complete the installation of coldplate 28.
As shown in figure 14：Taking out negative pressure module 9 includes taking out negative pressure mounting bracket 34, sealing plate 36, connecting tube 37 and takes out negative pressure
Lifting cylinder 35, takes out the upside that negative pressure mounting bracket 34 is installed on bell installing plate 14, and it is negative installed in taking out to take out negative pressure lifting cylinder 35
Press on mounting bracket 34, the piston rod of pumping negative pressure lifting cylinder 35 is vertically arranged downward, and sealing plate 36 is arranged on bell installing plate 14
Downside, sealing plate 36 is horizontally disposed, the bottom indent of sealing plate 36, and the bottom surface of sealing plate 36 is provided with around sealing plate outer
Sealing ring, sealing plate 36 are encircled into negative pressure cavity with heating plate 30, and tablet to be welded is arranged in negative pressure cavity, take out negative pressure lifting cylinder
Horizontal connecting plate 38 is installed, connecting plate 38 is arranged on the upside of bell installing plate 14, and connecting tube 37 is set on 35 piston rod
Put between connecting plate 38 and sealing plate 36, connecting tube 37 is slided and is tightly connected with bell installing plate 14, under connecting tube 37
End is connected with negative pressure cavity, and the upper end of connecting tube 37 is connected with pumping negative tube.
As shown in Figure 15 ~ 16：The downside of welding booth 18 is arranged at intervals with translation plates 41, and carrying and installation arm 45 is arranged on translation plates
Between 41 and welding booth 18, carrying and installation arm 45 is slidably mounted in translation plates 41 by mounting base, translation mechanism and translation plates
41 are connected and drive translation plates 41 to be translated along the carrying direction of tablet.The downside of translation plates 41 is arranged at intervals with horizontal carrying peace
Loading board 52, the top both sides of carrying and installation plate 52 are symmetrically arranged with translation panel guide 51, and translation panel guide 51 is with carrying bar 24
Centerline parallel is set, and translation plates 41 are slidably mounted on translation panel guide 51 by being arranged on the translation plates sliding block of downside, are removed
Fortune installing plate 52 is installed on elevating mechanism and is lifted with elevating mechanism.
Elevating mechanism includes horizontally disposed pan carriage 49, lifting guide pad 48, lifting leading truck 47 and carries lifting
Cylinder 46, horizontal pan carriage guide rail 50 is provided with rack 1, and pan carriage guide rail 50 is arranged in parallel with translation panel guide 51, puts down
Frame 49 is moved to be slidably mounted on pan carriage guide rail 50 by the pan carriage sliding block of downside.Carry lifting cylinder 46 and be horizontally arranged at machine
On frame 1, and carry lifting cylinder 46 piston rod towards pan carriage 49 direction set, carry lifting cylinder 46 piston rod with
Pan carriage 49 is connected and promotes pan carriage 49 to be moved along the carrying direction of tablet.The both sides of pan carriage 49 are symmetrically arranged with lifting
Guide pad 48, the upside of lifting guide pad 48 are provided with lifting guide part, and lifting guide part is along close to carrying lifting cylinder 46
Direction it is gradually upward skewed, lifting leading truck 47 is corresponded with lifting guide pad 48, the downside of lifting leading truck 47
Lifting directive wheel is rotatablely equipped with, the lifting guide part for lifting directive wheel and the lifting guide pad 48 of respective side fits, so that
Realize the lifting of carrying and installation plate 52.Vertical riser guide is provided with rack 1, liftable mounting plate 52 passes through lifting slider
It is slidably mounted on riser guide so as to be oriented to carrying and installation plate 52.
Translation mechanism includes pan carriage motor mounting rack 54, carries movable stand 55 and translation motor 53, translation motor peace
54 downsides for being arranged on carrying and installation plate 52 are shelved, translation motor 53 is installed on translation motor mounting bracket 54, translation motor 53
Output shaft be horizontally disposed with and be arranged in parallel with the carrying direction of tablet.Translation leading screw is coaxially installed with translation motor 53, is put down
Move leading screw to rotate synchronously with translation motor 53, carry movable stand 55 and be slidably mounted on translation motor mounting bracket 54, carry movement
It is provided with frame 55 and the translation matched translational nut of leading screw.Carry movable stand 55 upside pass through carrying and installation plate 52 after with
Translation plates 41 are connected and drive 41 synchronizing moving of translation plates, carry movable stand 55 and slide setting with carrying and installation plate 52.
Open-and-close mechanism include folding mounting rod 42, folding guide plate 43, folding movable stand 56, folding motor mounting rack 57,
Folding movable stand 56 and folding power plant module, in the present embodiment, folding power plant module are folding motor 58.Folding motor is pacified
57 downsides for being arranged on carrying and installation plate 52 are shelved, the upside of folding motor mounting rack 57 is connected with translation plates 41 and with translation plates
41 synchronizing movings, folding motor mounting rack 57 are slidably connected with carrying and installation plate 52.Folding motor 58 is pacified installed in folding motor
Shelve on 57.Folding movable stand 56 is slidably mounted on folding motor mounting rack 57, is coaxially pacified on the output shaft of folding motor 58
Equipped with folding leading screw, it is provided with folding movable stand 56 and passes through silk with the matched clasp nut of folding leading screw, folding motor 58
Thick stick pair of nut drives folding movable stand 56 to carry direction translation along tablet.The upside of translation plates 41 is provided with mounting rod sliding block, opens
Close mounting rod 42 to be slidably mounted on mounting rod sliding block, folding mounting rod 42 is set along the carrying direction of tablet, folding movable stand
56 upside is connected with folding mounting rod 42 and drives 42 synchronizing moving of folding mounting rod, folding movable stand 56 and carrying and installation plate
52 are slidably connected.The both ends of folding mounting rod 42 are both provided with folding guide plate 43, and the both sides of folding guide plate 43 are equipped with out
Close guide part, folding guide part is to carry that direction is gradually inside skewed, and the both ends of each carrying and installation arm 45 are equal along tablet
Folding directive wheel 44 is installed, being additionally provided between two carrying and installation arms 45 makes folding directive wheel 44 and folding guide plate 43
The folding spring that folding guide part fits.Installing arm guide rail is also equipped with translation plates 41, installing arm guide rail is installed with folding
Bar 42 is vertically arranged, and carrying and installation arm 45 is slidably mounted on installing arm guide rail by folding sliding block.
As shown in Figure 17 ~ 18：Cleaning module 59 includes purifying box 61 and the coil pipe 67 being arranged in purifying box 61 and filter
Net 64, purifying box 61 are rectangular box body, and the side of purifying box 61 is connected with purifying box air inlet pipe 62, the opposite side of purifying box 61
Purifying box air outlet pipe is connected with, wind turbine 65 is provided between purifying box air outlet pipe and welding booth 18.Coil pipe 67 is arranged on purifying box
In 61, coil pipe 67 is also associated with oil feeding reservoirs 60, and the oil outlet of oil feeding reservoirs 60 is connected by circulating pump with one end of coil pipe 67, coil pipe
67 other end is connected with oil feeding reservoirs 60, it is achieved thereby that the circulation of cooling oil.It is additionally provided with purifying box 61 and 67 phase of coil pipe
Fin 68 even, so as to faster exchange heat with nitrogen, reduces the temperature of nitrogen.Purifying box 61 is close to purifying box air outlet pipe
Side be provided with strainer installs case 63, purifying box air outlet pipe is connected by strainer installs case 63 with purifying box 61, and strainer 64 is perpendicular
To being arranged in strainer installs case 63, nitrogen after cooling is discharged after passing through strainer 64 by purifying box air outlet pipe, and defeated again
Send to welding booth 18, strainer 64 is used to filter the solder paste after liquefaction, so as to remove the solder paste steam in nitrogen.
The downside of purifying box 61 is additionally provided with solder paste collecting vessel 66, and the downside of purifying box 61 is along close to solder paste collecting vessel 66
One end it is skewed less than the other end, flowed into so as to the liquid after making cooling liquefy in solder paste collecting vessel 66.
A kind of welding procedure of above-mentioned vacuum brazing stove, includes the following steps：
1）Bell 4 closes welding booth 18, and protection gas air inlet pipe is filled with protection gas into welding booth 18；
Nitrogen is filled with to welding booth 18 by main nitrogen inlet duct 5 and secondary nitrogen inlet duct 16, nitrogen is full of whole welding booth
18, and the air in welding booth 18 is completely exhausted out.Electrothermal tube 31 heats heating plate 30 at the same time, and water inlet pipe 29 is to coldplate 28
Interior is passed through cooling water.
2）Tablet is carried in negative pressure cavity by carrying mechanism 2 piecewise, and the tablet in handling process is progressively heated in heating zone；
Tablet is placed on loading bay 21, elevating mechanism drives carrying bar 24 to move down, and open-and-close mechanism drives two carryings
Bar 24 is moved downward to close to the position of tablet, and is aligned with the loading bay resigning mouthful 2101 on loading bay 21, and elevating mechanism is again
Secondary to drive carrying bar 24 to move down and supporting part is located in loading bay resigning mouthful 2101, then open-and-close mechanism drives two again
A carrying bar 24 moves inward and supporting part is moved on the downside of tablet both ends.Elevating mechanism drives carrying bar 24 to move up,
The picking-up of tablet is completed, while the baffle 27 of feed end is opened feed end, translation mechanism, which drives, carries bar 24 to close to weldering
The direction movement of 18 discharge end of room is connect, and tablet is carried in the heating plate 30 in welding booth 18.Carrying mechanism 2 is gradually removed
Fortune, so that after tablet is heated via each heating plate 30, enters in the heating plate 30 taken out immediately below negative pressure module 9.
Taking out negative pressure lifting cylinder 35 drives sealing plate 36 to move down, and sealing plate 36 is closed with the heating plate 30 immediately below it
The negative pressure cavity of sealing is surrounded, while takes out the gas that negative tube will be extracted in negative pressure cavity, makes to maintain negative pressure or even vacuum in negative pressure cavity
State, ensures that the bubble in tin cream overflows, ensures welding quality.Negative pressure lifting cylinder 35 is taken out after the completion of welding and drives sealing plate
36 rise.
3）Carrying mechanism 2 will weld the tablet of completion in negative pressure cavity and be carried to discharge end, cooling zone tablet is carried out by
Step cooling.
Carrying mechanism 2 continues to carry tablet to discharge end, is moved to after tablet is cooled down via each coldplate 28 successively
On discharge pedestal 19, the welding of tablet is completed.
The above described is only a preferred embodiment of the present invention, being not the limitation for making other forms to the present invention, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute
Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of vacuum brazing stove, including welding booth（18）, bell（4）And carrying mechanism（2）, bell（4）Cover and welding
Room（18）Upside, and in welding booth（18）And bell（4）Between formed welding chamber, welding booth（18）Lower part is equipped with welding bench
（20）, it is characterised in that：The welding bench（20）Side close to feed end is heating zone, welding bench（20）Close to discharge end
Side be cooling zone, heating zone is provided with the upside of one end of cooling zone takes out negative pressure module（9）, take out negative pressure module（9）Can
Lifting is installed on bell（4）On, take out negative pressure module（9）Bottom is encircled into closed negative pressure cavity, welding booth with heating zone（18）
Or bell（4）On be provided with protection gas air inlet pipe.
2. vacuum brazing stove according to claim 1, it is characterised in that：The welding bench（20）Including polylith heating plate
（30）And polylith coldplate（28）, polylith heating plate（30）It is spliced into heating zone, polylith coldplate（28）It is spliced into cooling zone.
3. vacuum brazing stove according to claim 2, it is characterised in that：Heating plate described in every piece（30）Both sides it is right
Title is provided with electrothermal tube（31）, heating plate（30）Middle part be provided with sensor mounting hole（3003）, sensor mounting hole
（3003）To be arranged on two electrothermal tubes（31）Between blind hole, sensor mounting hole（3003）Temperature sensor is inside installed
（32）.
4. vacuum brazing stove according to claim 2, it is characterised in that：Coldplate described in every piece（28）Both sides it is symmetrical
It is provided with intake tunnel（2802）, coldplate（28）At least one end be provided with and two intake tunnels（2802）The draining of connection is led to
Road（2803）.
5. vacuum brazing stove according to claim 1, it is characterised in that：The welding booth（18）Downside be provided with collection
Liquid cover（33）, liquid-collecting cover（33）Two bottom sides be skewed, liquid-collecting cover by sidepiece to middle part gradually downward（33）Bottom is set
There is liquid-collecting cover outlet tube（3301）.
6. vacuum brazing stove according to claim 1, it is characterised in that：The protection gas air inlet pipe is main nitrogen air inlet
Pipe（5）, bell（4）Both ends be both provided with main nitrogen inlet duct（5）, bell（4）On both sides of the middle be symmetrically arranged with secondary nitrogen
Air inlet pipe（16）, secondary nitrogen inlet duct（16）With welding booth（18）Connection.
7. vacuum brazing stove according to claim 6, it is characterised in that：The bell（4）Lower part both sides are symmetrical arranged
There is inlet plate（17）, inlet plate（17）Top be equipped with upside opening air inlet（1701）, and and bell（4）It is encircled into air inlet
Chamber, inlet plate（17）On be arranged at intervals with it is multiple by air inlet（1701）With welding booth（18）The fumarole of connection（1702）, it is secondary
Nitrogen inlet duct（16）With air inlet（1701）Connection.
8. vacuum brazing stove according to claim 1, it is characterised in that：The carrying mechanism（2）Including carrying bar
（24）And it is arranged on welding booth（18）Elevating mechanism, translation mechanism and the open-and-close mechanism of downside, carry bar（24）It is symmetrical arranged
There are two, and carry bar（24）Middle part be arranged on welding booth（18）It is interior, open-and-close mechanism at the same time with two carrying bars（24）It is connected
And its folding is driven, translation mechanism is connected with open-and-close mechanism and drives it to be moved along the direction closer or far from discharge end, lifts
Mechanism is connected with translation mechanism and drives its lifting, each carries bar（24）On be equipped with multiple supporting parts, welding bench（20）Two
End is equipped with multiple resigning mouthfuls, and resigning mouthful is corresponded with supporting part.
9. vacuum brazing stove according to claim 8, it is characterised in that：The welding booth（18）Both ends pass through end
Lid（26）Closing, each end cap（26）Both sides be symmetrically arranged with carrying port（2601）, carry bar（24）Through carrying port
（1601）It is connected with open-and-close mechanism, end cap（26）Bottom and welding bench（20）It is arranged at intervals.
A kind of 10. welding procedure of claim 1 ~ 9 any one of them vacuum brazing stove, it is characterised in that：Including following step
Suddenly：
1）Bell（4）By welding booth（18）Closing, protects gas air inlet pipe to welding booth（18）Inside pour protection gas；
2）Carrying mechanism（2）Tablet is carried in negative pressure cavity piecewise, the tablet in handling process is progressively heated in heating zone；
3）Carrying mechanism（2）The tablet that completion is welded in negative pressure cavity is carried to discharge end, cooling zone carries out progressively tablet
Cooling.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480242.5A CN107931768B (en) | 2017-12-29 | 2017-12-29 | Vacuum welding furnace and welding process |
| DE112018006635.5T DE112018006635T5 (en) | 2017-12-29 | 2018-05-24 | Vacuum welding furnace and welding process |
| DE202018006535.8U DE202018006535U1 (en) | 2017-12-29 | 2018-05-24 | Vacuum welding furnace |
| JP2020536598A JP7127132B2 (en) | 2017-12-29 | 2018-05-24 | Vacuum welding furnace and welding method |
| PCT/CN2018/088228 WO2019128068A1 (en) | 2017-12-29 | 2018-05-24 | Vacuum soldering furnace and soldering process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711480242.5A CN107931768B (en) | 2017-12-29 | 2017-12-29 | Vacuum welding furnace and welding process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107931768A true CN107931768A (en) | 2018-04-20 |
| CN107931768B CN107931768B (en) | 2023-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711480242.5A Active CN107931768B (en) | 2017-12-29 | 2017-12-29 | Vacuum welding furnace and welding process |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7127132B2 (en) |
| CN (1) | CN107931768B (en) |
| DE (2) | DE202018006535U1 (en) |
| WO (1) | WO2019128068A1 (en) |
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| WO2019128068A1 (en) * | 2017-12-29 | 2019-07-04 | 山东才聚电子科技有限公司 | Vacuum soldering furnace and soldering process |
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| CN113714583A (en) * | 2021-08-16 | 2021-11-30 | 江苏新智达新能源设备有限公司 | Vacuum welding furnace |
| WO2024119603A1 (en) * | 2022-12-06 | 2024-06-13 | 山东才聚电子科技有限公司 | Static vacuum welding furnace |
| US12103098B1 (en) | 2022-12-06 | 2024-10-01 | Shandong Caiju Electronic Technology Co., Ltd | Static vacuum welding furnace |
| CN117943655A (en) * | 2024-02-28 | 2024-04-30 | 深圳新控半导体技术有限公司 | Vacuum reflow soldering furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7127132B2 (en) | 2022-08-29 |
| DE112018006635T5 (en) | 2020-10-29 |
| WO2019128068A1 (en) | 2019-07-04 |
| JP2021508602A (en) | 2021-03-11 |
| CN107931768B (en) | 2023-05-16 |
| DE202018006535U1 (en) | 2021-02-02 |
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