CN107855622A - A kind of vacuum brazing stove of wide adaptation range - Google Patents

A kind of vacuum brazing stove of wide adaptation range Download PDF

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Publication number
CN107855622A
CN107855622A CN201711480235.5A CN201711480235A CN107855622A CN 107855622 A CN107855622 A CN 107855622A CN 201711480235 A CN201711480235 A CN 201711480235A CN 107855622 A CN107855622 A CN 107855622A
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CN
China
Prior art keywords
tablet
welding
bell
carrying
negative pressure
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.)
Granted
Application number
CN201711480235.5A
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Chinese (zh)
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CN107855622B (en
Inventor
李向东
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Shandong Cai Electronic Technology Co Ltd
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Shandong Cai Electronic Technology Co Ltd
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Application filed by Shandong Cai Electronic Technology Co Ltd filed Critical Shandong Cai Electronic Technology Co Ltd
Priority to CN201711480235.5A priority Critical patent/CN107855622B/en
Publication of CN107855622A publication Critical patent/CN107855622A/en
Priority to JP2020536607A priority patent/JP7181297B2/en
Priority to DE112018006620.7T priority patent/DE112018006620B4/en
Priority to DE202018006536.6U priority patent/DE202018006536U1/en
Priority to PCT/CN2018/088223 priority patent/WO2019128064A1/en
Application granted granted Critical
Publication of CN107855622B publication Critical patent/CN107855622B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor
    • B23K3/087Soldering or brazing jigs, fixtures or clamping means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/008Soldering within a furnace

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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)
  • Electric Connection Of Electric Components To Printed Circuits (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

A kind of vacuum brazing stove of wide adaptation range, belongs to vacuum welding technical field.It is characterized in that:Described welding bench(20)On be provided with multiple stations, the carrying mechanism of each station both sides(2)On be provided with supporting part, each supporting part and carrying mechanism(2)Between be provided with flexible module, stretch module center line it is parallel with the moving direction of tablet, stretch module pars contractilis towards tablet middle part set, the both sides of each station are symmetrically arranged with multiple resigning mouthfuls being engaged with supporting part.The vacuum brazing stove of this wide adaptation range can carry out support by the both sides of tablet to tablet, avoid the heated softening of tablet, by tablet both ends support tablet when tablet deform and with carrying mechanism depart from, this soldering furnace is set to adapt to the welding of the soft workpiece of matter, wide adaptation range, working stability, and the workpiece of welding can be avoided to deform, welding quality is improved, reduces the generation of defective work.

Description

A kind of vacuum brazing stove of wide adaptation range
Technical field
A kind of vacuum brazing stove of wide adaptation range, belongs to vacuum welding technical field.
Background technology
The electronic components such as diode, triode, controllable silicon or bridge 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 particular location of lower tablet, then upper tablet that downside is painted with to tin cream overlays blanking On the upside of piece, then mould top cover will be welded and covered on welding baffle plate, finally welding mould is sent into soldering furnace and 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 Following technical problem in use be present:
(1)A heating zone being engaged with vacuum treatment installation is 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 because its heating zone is arranged on upper lid, heating zone is heated using radiation to tablet, heat transfer efficiency compared with It is low, so as to further increase the heat 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 because 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 too high, 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 too high, worker directly can not be handled tablet;
(4)Transmission mechanism is to carry out support to tablet by the both ends of tablet when being conveyed to tablet, and the tablet after heating is softer, leads to It is easy to the problem of tablet deforms and departs from transmission mechanism occur when crossing both ends support tablet, work is very unstable.
The content of the invention
The technical problem to be solved in the present invention is:A kind of overcome the deficiencies in the prior art, there is provided both sides support from tablet Tablet, the vacuum brazing stove for avoiding the heated wide adaptation range for departing from carrying mechanism that softens of tablet.
The technical solution adopted for the present invention to solve the technical problems is:The vacuum brazing stove of the wide adaptation range, including Welding booth, bell, carrying mechanism and it is arranged on bell and takes out negative pressure module, bell is covered on the upside of welding booth, and is being welded Connect and welding chamber formed between room and bell, welding booth bottom is provided with welding bench, take out negative pressure module bottom be encircled into welding bench it is close The negative pressure cavity closed, it is characterised in that:It is provided with multiple stations on described welding bench, on the carrying mechanism of each station both sides Supporting part is provided with, flexible module is provided between each supporting part and carrying mechanism, the center line and tablet of module of stretching Moving direction it is parallel, stretch module pars contractilis towards tablet middle part set, the both sides of each station are symmetrically arranged with Multiple resigning mouthfuls being engaged with supporting part.
Preferably, described flexible module is horizontally disposed cylinder or electric pushrod, and supporting part is arranged on cylinder or electricity The downside of dynamic push rod pars contractilis.
Preferably, described welding bench is heating zone close to the side of feed end, and welding bench is close to the side of discharge end Cooling zone, heating zone are provided with the upside of one end of cooling zone and take out negative pressure module, take out that negative pressure module is liftable to be arranged on stove Cover, take out negative pressure module bottom and be encircled into closed negative pressure cavity with heating zone, protection gas air inlet is provided with welding booth or bell Pipe.
Preferably, described 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 described welding booth, the two bottom sides of liquid-collecting cover are by sidepiece to middle part Gradually downward skewed, liquid-collecting cover bottom is provided with liquid-collecting cover drain pipe.
Preferably, described protection gas air inlet pipe is main nitrogen inlet duct, and the both ends of bell are 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 connects with welding booth.
Preferably, described bell bottom both sides are symmetrically arranged with inlet plate, and the top of inlet plate is provided 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 connect with air inlet.
Preferably, described 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 be symmetrically arranged with two, and carry and be arranged in the middle part of bar in welding booth, open-and-close mechanism simultaneously 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 multiple flexible module symmetries are arranged on two carrying bars Inner side.
Preferably, the both ends of described 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 described end cap both ends are symmetrically arranged with baffle plate mounting groove, and baffle plate mounting groove is vertically arranged, baffle plate Be slidably fitted with baffle plate in mounting groove, baffle plate is slided and is tightly connected with carrying bar, baffle plate be engaged with the end cap of respective side by The end part seal of welding booth.
Preferably, the downside of described welding booth is provided with carrying the one-to-one carrying and installation arm of bar, carrying and installation arm Both ends be connected with the carrying bar both ends of respective side, open-and-close mechanism is connected with two carrying and installation arms.
Preferably, described 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 provided 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, described elevating mechanism includes lifting guide pad and carries lift cylinder, is set on the upside of lifting guide pad The skewed lifting guide part gradually downward along the direction of close discharge end is equipped with, is provided with and lifts on the downside of translation mechanism The lifting directive wheel that guide part fits, carry the piston rod of lift cylinder be connected with lifting guide pad and promote it along close or Move in direction away from discharge end.
Preferably, described negative pressure module of taking out includes sealing plate and takes out negative pressure lift cylinder, and sealing plate is arranged on welding It is be arranged in parallel on the upside of platform and with welding bench, bottom and the welding bench of sealing plate are encircled into the negative pressure cavity of closing, and negative pressure cavity is connected with Take out negative tube.
Preferably, described sealing plate is arranged on the downside of bell, is taken out negative pressure lift cylinder and is arranged on the upside of bell, takes out negative pressure The piston rod of lift cylinder is connected by connecting tube with sealing plate, and connecting tube connects negative pressure cavity with taking out negative tube.
Preferably, in addition to cleaning module, the inlet end of cleaning module and outlet side connect with welding booth.
Preferably, described cleaning module includes purifying box and the coil pipe and filter screen that are arranged in purifying box, inlet end It is separately positioned on the both sides of purifying box with outlet side, filter screen sets close to outlet side and closes outlet side, filled with following in coil pipe The coolant of ring, blower fan is provided between the outlet side and welding booth of purifying box.
Preferably, described cleaning module also includes the fin being arranged in purifying box.
Compared with prior art, beneficial effect possessed by the present invention is:
1st, each station both sides of the vacuum brazing stove of this wide adaptation range are provided with resigning mouthful, and supporting part is arranged on flexible mould On block, flexible module can adjust the position of supporting part, so as to carry out support to tablet by the both sides of tablet, avoid Tablet is heated to soften, by tablet both ends support tablet when tablet deform and depart from carrying mechanism, make this soldering furnace also The welding of the soft workpiece of matter, wide adaptation range, working stability are can adapt to, and the workpiece of welding can be avoided to deform, Welding quality is improved, reduces the generation of defective work.
2nd, heating zone can heat to tablet so that tablet in negative pressure cavity can rapid welding complete, welding Interior is filled with protection gas, and so as to avoid tablet in heating process from being reacted with oxygen, cooling zone can be carried out to tablet Cooling, so that the tablet temperature for removing welding booth is low, that is, avoids tablet and be oxidized, again the convenient tablet to being welded in time Handled, and to being not in because the too high mutability of tablet temperature causes tablet in processing procedure in web process Deformation, the problem of causing disqualification rate to raise, tablet directly contacts with heating zone or cooling zone, is realized by way of heat transfer Heating and cooling, compared with using the mode of heating of radiation, firing rate is substantially increased, tablet is quickly heated up And cooling, reduce the consumption of energy.
3rd, 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 are heated to polylith tablet, tablet is rapidly achieved welding temperature, improve simultaneously Speed of welding.
4th, 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.
5th, intake tunnel and exhalant canal are provided with every piece of coldplate, realize and progressively tablet is cooled, kept away The too fast tin cream caused after solidification of exempting to cool is cracked, causes chip and tablet loose contact, defective work occurs, also can Tablet is avoided to deform.
6th, cooling zone can be condensed the liquid to be formed and be discharged by liquid-collecting cover drain pipe by liquid-collecting cover.
7th, the both ends of bell are provided 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.
8th, secondary nitrogen inlet duct is uniformly sprayed into nitrogen in welding booth by inlet plate, so as to by welding booth Air is emptied completely, and is avoided the tablet after heating and is reacted with oxygen.
9th, 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.
10th, 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 into welding Outdoor, bell need not be opened in welding process and being movable into and out for tablet can be achieved.
11st, baffle plate moves with the motion for carrying bar in baffle plate mounting groove, so as in time close welding booth, keeps away Exempt from protection gas leakage, reduced the consumption of protection gas, and then reduce welding cost.
12nd, open-and-close mechanism is connected with the carrying and installation arm on the downside of welding booth, facilitates the connection for carrying bar.
13rd, 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 stable, and end cap will not be damaged.
14th, lift 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 and carry bar lifting action stabilization, and lift Stroke determine, welding booth will not be caused to damage.
15th, sealing plate and heating zone are encircled into negative pressure cavity, and taking out negative pressure lift cylinder can drive sealing plate to lift, so as to side Just tablet is into and out negative pressure cavity.
16th, take out negative pressure lift 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 connects with negative pressure cavity, has both facilitated the installation connection of sealing plate, facilitate negative pressure cavity again takes out negative pressure.
17th, cleaning module can extract the protection gas in welding booth, 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.
18th, coil pipe is exchanged heat with the protection gas extracted out by coolant and reduces the temperature of protection gas, solder paste is liquefied, so Protection gas is being filtered by filter screen afterwards, solder paste is stayed on screen pack, it is achieved thereby that point by solder paste and protection gas From.
19th, 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.
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 drawing 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 drawing at B in Fig. 6.
Fig. 8 is the scheme of installation of electric pushrod.
Fig. 9 is the schematic perspective view of welding bench.
Figure 10 is that the right side of welding bench regards schematic diagram.
Figure 11 is the vertical view schematic cross-sectional view of heating plate.
Figure 12 is the vertical view schematic cross-sectional view of coldplate.
Figure 13 is the main view schematic cross-sectional view of welding booth's installed part.
Figure 14 is the main view schematic cross-sectional view of mounting pin.
Figure 15 is the schematic front view for taking out negative pressure module.
Figure 16 is the schematic perspective view of carrying mechanism.
Figure 17 is the schematic front view of carrying mechanism.
Figure 18 is the schematic perspective view of solder paste cleaning module.
Figure 19 is the main view schematic cross-sectional view of cleaning module.
In figure:1st, frame 2, carrying mechanism 3, bell cylinder 4, bell 5, main nitrogen inlet duct 6, guide housing 7, net Change air inlet pipe 8, purification escape 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, regulation spring 24, carrying bar 25, sealing shroud 26, end cap 2601, carrying port 2602, baffle plate Mounting groove 27, baffle plate 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 lift cylinder 36, sealing plate 37, connecting tube 38, connecting plate 39, installation Pin 3901, screwed hole 40, welding booth's installed part 4001, fixed part 4002, shoulder hole 41, translation plates 42, folding installation Bar 43, folding guide plate 44, folding directive wheel 45, carrying and installation arm 46, carrying lift 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, filter screen installs case 64, filter screen 65, blower fan 66th, solder paste collecting vessel 67, coil pipe 68, fin 69, electric pushrod.
Embodiment
Fig. 1 ~ 19 are highly preferred embodiment of the present invention, and 1 ~ 19 the present invention will be further described below in conjunction with the accompanying drawings.
A kind of vacuum brazing stove of wide adaptation range, including welding booth 18, bell 4, carrying mechanism 2 and it is arranged on bell Negative pressure module 9 is taken out on 4, bell 4 is covered in the upside of welding booth 18, and welding chamber, weldering are formed between welding booth 18 and bell 4 Connect the bottom of room 18 and be provided with welding bench 20, take out the bottom of negative pressure module 9 and welding bench 20 and be encircled into closed negative pressure cavity, on welding bench 20 Multiple stations are provided with, supporting part, each supporting part and carrying mechanism 2 are provided with the carrying mechanism 2 of each station both sides Between be provided with flexible module, stretch module center line it is parallel with the moving direction of tablet, stretch module pars contractilis court Set to the middle part of tablet, the both sides of each station are symmetrically arranged with multiple resigning mouthfuls being engaged with supporting part.This adaptation Each station both sides of the wide vacuum brazing stove of scope are provided with resigning mouthful, and supporting part is arranged in flexible module, and stretch mould Block can adjust the position of supporting part, so as to carry out support to tablet by the both sides of tablet, avoid tablet and become by heat It is soft, by tablet both ends support tablet when tablet deform and with carrying mechanism depart from, this soldering furnace is adapted to matter The welding of soft workpiece, wide adaptation range, working stability, and the workpiece of welding can be avoided to deform, improve welding Quality, reduce the generation of defective work.
Welding bench 20 is heating zone close to the side of feed end, and welding bench 20 is cooling zone close to the side of discharge end, is added Hot-zone is provided with the upside of one end of cooling zone and takes out negative pressure module 9, takes out that negative pressure module 9 is liftable to be arranged on bell 4, takes out The bottom of negative pressure module 9 is encircled into closed negative pressure cavity with heating zone, and protection gas air inlet pipe is provided with welding booth 18 or bell 4. The heating zone of this vacuum brazing stove can heat to tablet so that tablet in negative pressure cavity can rapid welding complete, Filled with protection gas in welding booth 18, so as to avoid tablet in heating process from being reacted with oxygen, cooling zone can be to material Piece is cooled down, so that the tablet temperature for removing welding booth 18 is low, that is, is avoided tablet and is oxidized, again convenient in time to welding Good tablet is handled, and to being not in because the too high mutability of tablet temperature causes to treat in web process Tablet deforms in journey, and the problem of causing disqualification rate to raise, tablet directly contacts 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.
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 accompanying 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 open rectangular box body in upside, and the both ends of welding booth 18 are respectively Feed end and discharge end, welding booth 18 are arranged on the upside of frame 1, and carrying mechanism 2 is arranged in the frame 1 of the downside of welding booth 18. Bell 4 is arranged 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 frame 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 frame 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 take out negative pressure module and be 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 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 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 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 elongated 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 escape 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 escape 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 to be liquefied in welding booth 18, make tablet temperature relatively low and then extend Weld interval of tablet.Purification escape pipe 8 connects with the inlet end of cleaning module 59, purification escape 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 influenceing 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 enters Tracheae 16 is arranged on the upside of bell installing plate 14, and the outlet side of secondary nitrogen inlet duct 16 connects 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 elongated hole set along the length direction of inlet plate 17, stove Every side of lid installing plate 14 is 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 is corresponded, and the top of inlet plate 17 is arranged 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, nitrogen is sprayed into inlet chamber so as to convenient.
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 provided with carrying port 2601, carry length direction of the bar 24 along welding booth 18 and be horizontally disposed with, 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 with carrying bar 24 1 a pair 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 arranged in frame 1, and translation mechanism is arranged on elevating mechanism, and open-and-close mechanism is arranged on translation In mechanism, and open-and-close mechanism is connected with two carrying bars 24 simultaneously, it is achieved thereby that the folding of two carrying bars 24, lifting peace It is mobile to make, facilitate the carrying of tablet.
Regulation spring 23 is provided between one end of each carrying bar 24 and installing plate 22, regulation spring 23 is set in carrying On bar 24, carry bar 24 and be slidably connected close to one end of regulation spring 23 with installing plate 22, regulation spring 23 is arranged on installing plate 22 outsides, one end of regulation 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 adjustments spring 23 that axle is adjusted up carrying bar 24 can also play cushioning effect, avoid caused impact in handling process Load causes tablet to drop.
The downside of end cap 26 and the upside of welding bench 20 at the both ends of welding booth 18 are arranged at intervals, so as 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 provided with vertical baffle plate mounting groove 2602, in baffle plate mounting groove 2602 Baffle plate 27 is slidably fitted with, baffle plate 27 is slidably connected with carrying bar 24, and sealed set between baffle plate 27 and carrying bar 24, baffle plate 27 close carrying port 2601, so as to carry bar 24 carry tablet during baffle plate 27 with carry bar 24 in the institute of end cap 26 Planar move, baffle plate 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 plate 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 plate 27.
As shown in Figure 8:The carrying bar 24 of each station both sides is provided with multiple supporting parts, and supporting part, which is arranged on, carries bar 24 Inner side, and each supporting part and carry and be provided with flexible module between bar 24, flexible module are cylinder or electric pushrod 69, In the present embodiment, module of stretching is electric pushrod 69.The piston rod of electric pushrod 69 passes through supporting part mounting rod and supporting part phase Even, so that supporting part extends the position in the middle part of tablet, more firm when holding up tablet, the level of electric pushrod 69 is set Put, supporting part is arranged on the downside of the pars contractilis of electric pushrod 69, and the supporting part of each station both sides is set towards station middle part.
As shown in Figure 9: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 length direction of the polylith coldplate 28 along welding booth 18 is set gradually, and is formed Cooling zone, and cooling zone is set close to discharge end, each heating plate 30 and each coldplate 28 are a station.Take out negative pressure mould Block 9 is arranged close to the upside of heating plate 30 of cooling zone one end.
The both sides of each heating plate 30 are symmetrically arranged with heating plate resigning mouthful 3001, and the both sides of each coldplate 28 are symmetrically set Coldplate resigning mouthful 2801 is equipped with, supporting part is stretched into heating plate resigning mouthful 3001 or coldplate resigning mouthful 2801 and will lain in Tablet in heating plate 30 or coldplate 28 is held up, and tablet is integrally placed in coldplate 28 or heating plate 30, is avoided Tablet is heated to soften, and causes tablet to deform, and conveniently take out the sealing of negative pressure 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 as to progressively be heated to tablet, avoiding heating too fast causes tin cream to drip.On each coldplate 28 Water inlet pipe 29 is connected with, coldplate 28 is cooled by cooling water to the tablet on cooling bench 28, and along close to discharge end Direction, the temperature of cooling bench 28 gradually reduce, and so as to progressively cool to tablet, avoid the too fast tin cream for causing solidification that cools 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 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 provided with and supporting part The discharge pedestal resigning mouthful 1901 being engaged, the 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 10:The bottom of welding booth 18 is provided with liquid-collecting cover 33, and the both sides of liquid-collecting cover 33 are by sidepiece to middle part Gradually downward skewed, and the middle part both ends of liquid-collecting cover 33 are symmetrically arranged with liquid-collecting cover drain pipe 3301, liquid-collecting cover 33 can Cooling zone is liquefied and the drop collection to be formed and sent out outside welding booth 18, avoids the welding to tablet in welding booth 18 from causing to hamper Hinder.
As shown in figure 11: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 individual 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 be arranged in parallel with electrothermal tube mounting hole 3002 Blind hole, and the length of sensor mounting hole 3003 is the half of the length of heating plate 30, temperature sensor 32 is 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 12: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, length direction of the intake tunnel 2802 along coldplate 28 is set, 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 provided with connecting portion, so as to facilitate water inlet pipe 29 and go out The connection of water pipe.
As shown in Figure 13 ~ 14:Welding booth 18 is arranged on the upside of frame 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 the through hole of fixed part 4001 is fixedly connected with frame 1.The both ends of welding booth's installed part 40 are symmetrically arranged with ladder Hole 4002, the diameter on the top of shoulder hole 4002 are more than the diameter of bottom, are mounted on mounting pin 39 on each shoulder hole 4002, pacify Fill pin 39 to be cylindric, and the lower end of mounting pin 39 is coaxially arranged with screwed hole 3901, and screwed hole 3901 is is arranged on installation Blind hole on pin 39, the diameter of mounting pin 39 is equal with the diameter on the top of shoulder hole 4002, 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 mounting bracket 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, so as to complete the installation of coldplate 28, convenient disassembly.
As shown in figure 15:Taking out negative pressure module 9 includes taking out negative pressure mounting bracket 34, sealing plate 36, connecting tube 37 and taking out negative pressure Lift cylinder 35, the upside that negative pressure mounting bracket 34 is arranged on bell installing plate 14 is taken out, it is negative installed in taking out to take out negative pressure lift cylinder 35 Press on mounting bracket 34, take out that the piston rod of negative pressure lift cylinder 35 is vertically arranged down, 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, takes out negative pressure lift 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 connects with negative pressure cavity, and the upper end of connecting tube 37, which is connected with, takes out negative tube.
As shown in Figure 16 ~ 17: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 seat, translation mechanism and translation plates The 41 carrying direction translations for being connected and driving translation plates 41 along 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 arranged on elevating mechanism and 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 frame 1, and pan carriage guide rail 50 be arranged in parallel with translation panel guide 51, put down Frame 49 is moved to be slidably mounted on pan carriage guide rail 50 by the pan carriage sliding block of downside.Carry lift cylinder 46 and be horizontally arranged at machine On frame 1, and carry lift cylinder 46 piston rod towards pan carriage 49 direction set, carry lift cylinder 46 piston rod with Pan carriage 49 is connected and promotes carrying direction of the pan carriage 49 along tablet to move.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 lift cylinder 46 Direction it is gradually upward skewed, lifting leading truck 47 corresponds 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 as to Realize the lifting of carrying and installation plate 52.Vertical riser guide is provided with frame 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 arranged on translation motor mounting bracket 54, translation motor 53 Output shaft it is horizontally disposed and be arranged in parallel with the carrying direction of tablet.Translation leading screw is coaxially installed with translation motor 53, is put down Leading screw is moved with the synchronous axial system of translation motor 53, movable stand 55 is carried and is slidably mounted on translation motor mounting bracket 54, carry movement The translational nut being engaged with translation leading screw is provided with frame 55.Carry movable stand 55 upside pass through carrying and installation plate 52 after with Translation plates 41 are connected and drive the synchronizing moving of translation plates 41, 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, the clasp nut being engaged with folding leading screw is provided with folding movable stand 56, folding motor 58 passes through silk 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, carrying direction of the folding mounting rod 42 along tablet is set, folding movable stand 56 upside is connected with folding mounting rod 42 and drives the synchronizing moving of folding mounting rod 42, folding movable stand 56 and carrying and installation plate 52 are slidably connected.The both ends of folding mounting rod 42 are 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 18 ~ 19: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 escape pipe is connected with, blower fan 65 is provided between purifying box escape 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-out of oil feeding reservoirs 60 is connected by circulating pump with one end of coil pipe 67, coil pipe 67 other end connects with oil feeding reservoirs 60, it is achieved thereby that the circulation of cooling oil.It is additionally provided with purifying box 61 and the phase of coil pipe 67 Fin 68 even, so as to faster be exchanged heat with nitrogen, reduce the temperature of nitrogen.Purifying box 61 is close to purifying box escape pipe Side be provided with filter screen installs case 63, purifying box escape pipe is connected by filter screen installs case 63 with purifying box 61, and filter screen 64 is perpendicular To being arranged in filter screen installs case 63, the nitrogen after cooling is discharged after passing through filter screen 64 by purifying box escape pipe, and defeated again Deliver in welding booth 18, filter screen 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, comprises the following steps:
1)Bell 4 closes welding booth 18, and protection gas air inlet pipe pours protection gas into welding booth 18;
Nitrogen is poured 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 to heating plate 30 simultaneously, 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 heating zone is progressively heated to the tablet in handling process;
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 electric pushrod 69 drives support Portion is mobile and supporting part is stretched on the downside of tablet.Elevating mechanism drives carrying bar 24 to move up, and completes the picking-up of tablet, simultaneously The baffle plate 27 of feed end is set to open feed end, translation mechanism, which drives, carries bar 24 to close to the shifting of the direction of the discharge end of welding booth 18 It is dynamic, and tablet is carried in the heating plate 30 in welding booth 18.Carrying mechanism 2 is gradually carried, so that tablet is via each After heating plate 30 heats, enter in the heating plate 30 taken out immediately below negative pressure module 9.
Taking out negative pressure lift 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, ensure that the bubble in tin cream overflows, ensure welding quality.Negative pressure lift 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 cools 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 of wide adaptation range, including welding booth(18), bell(4), carrying mechanism(2)And it is arranged on Bell(4)On take out negative pressure module(9), bell(4)Cover in welding booth(18)Upside, and in welding booth(18)And bell(4) Between formed welding chamber, welding booth(18)Bottom is provided with welding bench(20), take out negative pressure module(9)Bottom and welding bench(20)Surround Into closed negative pressure cavity, it is characterised in that:Described welding bench(20)On be provided with multiple stations, the carrying of each station both sides Mechanism(2)On be provided with supporting part, each supporting part and carrying mechanism(2)Between be provided with flexible module, stretch module Center line it is parallel with the moving direction of tablet, stretch module pars contractilis towards tablet middle part set, the two of each station Side is symmetrically arranged with multiple resigning mouthfuls being engaged with supporting part.
2. the vacuum brazing stove of wide adaptation range according to claim 1, it is characterised in that:Described flexible module is water The flat cylinder or electric pushrod set(69), supporting part is arranged on cylinder or electric pushrod(69)The downside of pars contractilis.
3. the vacuum brazing stove of wide adaptation range according to claim 1, it is characterised in that:Described welding bench(20)Lean on The side of nearly feed end is heating zone, welding bench(20)Side close to discharge end is cooling zone, and heating zone is close to cooling zone It is provided with the upside of one end and takes out negative pressure module(9), take out negative pressure module(9)It is liftable to be arranged 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.
4. the vacuum brazing stove of wide adaptation range according to claim 3, it is characterised in that:Described welding bench(20)Bag Include 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.
5. the vacuum brazing stove of wide adaptation range according to claim 4, it is characterised in that:Heating plate described in every piece (30)Both sides be symmetrically arranged with electrothermal tube(31), heating plate(30)Middle part be provided with sensor mounting hole(3003), pass Sensor mounting hole(3003)To be arranged on two electrothermal tubes(31)Between blind hole, sensor mounting hole(3003)Temperature is inside installed Sensor(32).
6. the vacuum brazing stove of wide adaptation range according to claim 4, it is characterised in that:Coldplate described in every piece (28)Both sides be symmetrically arranged with intake tunnel(2802), coldplate(28)At least one end be provided with and two intake tunnels (2802)The drainage channel of connection(2803).
7. the vacuum brazing stove of wide adaptation range according to claim 1, it is characterised in that:Described welding booth(18)'s Downside is provided with liquid-collecting cover(33), liquid-collecting cover(33)Two bottom sides be skewed, liquid collecting by sidepiece to middle part gradually downward Cover(33)Bottom is provided with liquid-collecting cover drain pipe(3301).
8. the vacuum brazing stove of wide adaptation range according to claim 1, it is characterised in that:Described protection gas air inlet pipe For main nitrogen inlet duct(5), bell(4)Both ends be provided with main nitrogen inlet duct(5), bell(4)On both sides of the middle it is symmetrical It is provided with secondary nitrogen inlet duct(16), secondary nitrogen inlet duct(16)With welding booth(18)Connection.
9. the vacuum brazing stove of wide adaptation range according to claim 8, it is characterised in that:Described bell(4)Bottom Both sides are symmetrically arranged with inlet plate(17), inlet plate(17)Top be provided with the open air inlet in upside(1701), and and bell (4)It is encircled into inlet chamber, inlet plate(17)On be arranged at intervals with it is multiple by air inlet(1701)With welding booth(18)The spray of connection Stomata(1702), secondary nitrogen inlet duct(16)With air inlet(1701)Connection.
10. the vacuum brazing stove of wide adaptation range according to claim 1, it is characterised in that:Described 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)Two are symmetrically arranged with, and carries bar(24)Middle part be arranged on welding booth(18)Interior, open-and-close mechanism is removed with two simultaneously Transport bar(24)It is connected and drives its folding, translation mechanism is connected with open-and-close mechanism and drives it along the side closer or far from discharge end To movement, elevating mechanism is connected with translation mechanism and drives its lifting, and multiple flexible module symmetries are arranged on two carrying bars (24)Inner side.
CN201711480235.5A 2017-12-29 2017-12-29 Vacuum welding furnace with wide application range Active CN107855622B (en)

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CN201711480235.5A CN107855622B (en) 2017-12-29 2017-12-29 Vacuum welding furnace with wide application range
JP2020536607A JP7181297B2 (en) 2017-12-29 2018-05-24 Wide-ranging vacuum welding furnace
DE112018006620.7T DE112018006620B4 (en) 2017-12-29 2018-05-24 vacuum brazing furnace
DE202018006536.6U DE202018006536U1 (en) 2017-12-29 2018-05-24 Welding furnace with other areas of application
PCT/CN2018/088223 WO2019128064A1 (en) 2017-12-29 2018-05-24 Vacuum welding furnace with wide range of application

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CN107855622B CN107855622B (en) 2023-05-23

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