CN207746512U - A kind of vacuum brazing stove - Google Patents

Abstract

A kind of vacuum brazing stove belongs to vacuum welding technical field.It is characterized in that：Welding bench（20）It is heating zone, welding bench close to the side of feed end（20）It is cooling zone close to the side of discharge end, heating zone is provided on 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 mounted 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; to make 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.

Description

A kind of vacuum brazing stove

Technical field

A kind of vacuum brazing stove belongs to vacuum welding technical field.

Background technology

The electronic components such as diode, triode, silicon-controlled or bridge in production, need 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：It is 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 lid will be welded and closed 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.

Application No. is 201420820418.2 Chinese utility model patents to disclose a kind of continuity vacuum brazing stove, It has the following technical problems in use：

（1）One and the matched heating zone of vacuum treatment installation are only provided only on its board, due to needing tablet Being heated to certain temperature just can be such that tin cream melts and play welding effect, and the heating of tablet needs the mobile time, to lead Cause heating time long, and since its heating zone is arranged on upper lid, tablet is heated using radiation in heating zone, heat transfer effect Rate is relatively low, to further increase the heating time of tablet, keeps its welding efficiency relatively low；

（2）Conveying in order to facilitate transmission mechanism to tablet needs the both ends of tablet to stretch out plummer, and transmission mechanism passes through Tablet is held up and is conveyed by the extension at tablet both ends, since the tablet after heating is softer, the extension meeting at tablet both ends It bends downward, the position so as to cause the chip at tablet both ends can not be a large amount of so as to cause occurring with the contact of tablet to just Defective work；

（3）Tablet temperature after welding is excessively high, and cooling velocity is slower, and tablet is easy after removing vacuum treatment installation by oxygen Change, and the tablet temperature for removing board is still excessively high, worker can not directly be handled tablet.

Invention content

The technical problems to be solved in the utility model is：One kind is overcome the deficiencies of the prior art and provide to carry in tablet Tablet is heated in journey, speed of welding is fast and avoids the vacuum brazing stove of tablet oxidation.

Technical solution adopted by the utility model to solve its technical problems is：The vacuum brazing stove, including welding booth, stove Lid and carrying mechanism, bell lid close on the upside of welding booth, and welding chamber, welding booth lower part are formed between welding booth and bell 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 discharge end Side is cooling zone, and heating zone is provided on the upside of one end of cooling zone takes out negative pressure module, takes out the liftable peace of negative pressure module On bell, takes out negative pressure module bottom and be encircled into closed negative pressure cavity with heating zone, protection is provided in welding booth or bell Gas air inlet pipe.

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 in 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 equipped in sensor mounting hole Sensor.

Preferably, the both sides of the coldplate described in every piece are symmetrically arranged with intake tunnel, at least one end setting of coldplate There is the drainage channel being connected to two intake tunnels.

Preferably, liquid-collecting cover is provided on the downside of the welding booth, the two bottom sides of liquid-collecting cover are by side to middle part Gradually downward skewed, liquid-collecting cover bottom are 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 to 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 it is encircled into inlet chamber with bell, multiple jets for being connected to air inlet with welding booth are arranged at intervals on inlet plate Hole, secondary nitrogen inlet duct are connected to 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 the middle part for carrying bar is arranged in welding booth, open-and-close mechanism simultaneously with Two carrying bars are connected and its folding, translation mechanism are driven to be connected with open-and-close mechanism and drive it along closer or far from discharge end Direction is moved, and elevating mechanism is connected with translation mechanism and its lifting, each carry is driven to be equipped with multiple supporting parts on bar, weld 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 with open-and-close mechanism across carrying port, bottom and the welding bench interval of end cap are arranged.

Preferably, the end cap both ends are symmetrically arranged with baffle mounting groove, plane where baffle mounting groove with remove The central axis for transporting bar, is slidably fitted with baffle in baffle mounting groove, baffle with carry bar and slide and be tightly connected, baffle and The end cap of respective side is matched the end part seal of welding booth.

Preferably, the end cap both sides are symmetrically arranged with baffle mounting groove, plane where baffle mounting groove with remove The central axis for transporting bar, is slidably fitted with baffle in baffle mounting groove, baffle with carry bar and slide and be tightly connected, baffle and The end cap of respective side is matched the end part seal of welding booth.

Preferably, the open-and-close mechanism includes that horizontally disposed folding guide plate and folding power plant module, folding are led It is arranged between two carrying bars to plate, the both sides for opening and closing guide plate are equipped with and gradually inside incline along close to the direction of discharge end Ramp-like folding guide part, each carry are mounted on and open and close the folding directive wheel that guide part fits on the downside of bar, two The folding spring in tensional state is equipped between carrying bar, folding power plant module is connected with folding guide plate and its edge is driven to lean on Close or remote from the direction movement of discharge end.

Preferably, the elevating mechanism includes lifting guide pad and lifting cylinder, is provided on the upside of lifting guide pad Along the skewed lifting guide part close to the direction of discharge end gradually downward, it is equipped on the downside of translation mechanism and is oriented to lifting The piston rod of the lifting directive wheel that portion fits, lifting cylinder is connected with lifting guide pad and pushes it along closer or far from discharging It moves in the direction at end.

Preferably, the pumping negative pressure module includes sealing plate and takes out negative pressure lifting cylinder, and sealing plate setting is being heated 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 closed negative pressure cavity, and negative pressure cavity is connected with Take out negative tube.

Preferably, the sealing plate is arranged on the downside of bell, takes 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 negative pressure cavity is connected to by connecting tube with negative tube is taken out.

Preferably, further include cleaning module, the inlet end of cleaning module and outlet side are connected to 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 is arranged by near outgassing end and closes outlet side, filled with following in coil pipe The coolant liquid of ring is provided with wind turbine between the outlet side and welding booth of purifying box.

Preferably, the cleaning module further includes the fin being arranged in purifying box.

Compared with prior art, advantageous effect possessed by the utility model is：

1, the heating zone of this vacuum brazing stove can heat tablet, to make tablet can be quick in negative pressure cavity Welding is completed, filled with protection gas, so as to avoid tablet in heating process from reacting with oxygen, cooling zone energy in welding booth It is enough that tablet is cooled down, it to keep the tablet temperature of removal welding booth low, that is, avoids tablet and is aoxidized, and is convenient right in time The tablet being welded is handled, and to being not in since the excessively high mutability of tablet temperature causes to locate in web process Tablet deforms during reason, and the problem of causing disqualification rate to increase, tablet is directly contacted with heating zone or cooling zone, passes through heat and passes The mode led realizes heating and cooling, compared with using the mode of heating of radiation, substantially increases heating speed, enables tablet Enough quickly heatings and cooling, reduce the consumption of energy.

2, 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 simultaneously heat polylith tablet, so that tablet is rapidly achieved welding temperature, improve Speed of welding.

3, it is equipped with electric heating tube and temperature sensor in every piece of heating plate, every piece of heating plate is made to realize independent temperature Control, so as to gradually be heated to tablet in material handling process, 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, lead to defective work occur.

4, it is both provided with intake tunnel and exhalant canal on every piece of coldplate, realizes and gradually cool down to tablet, keeps away Exempt to cool down it is too fast cause the tin cream after solidification cracked, lead to chip and tablet poor contact, defective work occur, also can Tablet is avoided to deform.

5, cooling zone can be condensed the liquid to be formed and is discharged by liquid-collecting cover outlet tube by liquid-collecting cover.

6, 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.

7, 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.

8, open-and-close mechanism drives two carrying bar foldings, and is matched with elevating mechanism, and supporting part is made to stretch into welding bench In resigning mouthful, and by the way that tablet to be held up to the both ends of tablet, translation mechanism drives tablet to translate by carrying bar, to complete The translation work of tablet.

9, it carries 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 Bell need not be opened being movable into and out for tablet can be realized in the welding process by outdoor.

10, 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.

11, open-and-close mechanism is connected with the carrying and installation arm on the downside of welding booth, facilitates the connection for carrying bar.

12, folding power plant module pushes folding guide plate movement, the folding guide part for opening and closing guide plate to be oriented to by opening and closing It takes turns and two carrying bars synchronizations is pushed to move in the opposite direction, folding spring can make folding directive wheel compress folding guiding always 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 will not be damaged to end cap.

13, lifting cylinder pushes 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 damaged.

14, sealing plate and heating zone are encircled into negative pressure cavity, and taking out negative pressure lifting cylinder can drive sealing plate to lift, to side Just tablet is into and out negative pressure cavity.

15, it takes out negative pressure lifting cylinder to be connected with sealing plate by connecting tube and sealing plate is driven to lift, takes out negative tube and pass through Connecting tube is connected to negative pressure cavity, has not only facilitated the installation connection of sealing plate, but also facilitates the pumping negative pressure of negative pressure cavity.

16, 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.

17, coil pipe is exchanged heat by the protection gas of coolant liquid and extraction and the temperature of protection gas is made to reduce, and so that solder paste is liquefied, so Protection gas is being filtered by strainer afterwards, solder paste is made to stay on filter screen, to realize point of solder paste and protection gas From.

18, fin can increase coolant liquid 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.

Description of the drawings

Fig. 1 is the stereoscopic schematic diagram of vacuum brazing stove.

Fig. 2 is the stereoscopic schematic diagram 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 stereoscopic schematic diagram of vacuum brazing stove after removing bell.

Fig. 7 is the partial enlarged view at B in Fig. 6.

Fig. 8 is the stereoscopic schematic diagram 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 installation 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 stereoscopic schematic diagram of carrying mechanism.

Figure 16 is the schematic front view of carrying mechanism.

Figure 17 is the stereoscopic schematic diagram of solder paste cleaning module.

Figure 18 is the main view schematic cross-sectional view of cleaning module.

In figure：1, rack 2, carrying mechanism 3, bell cylinder 4, bell 5, main nitrogen inlet duct 6, guide housing 7, it purifies 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 mounting plate 1401, installing port 15, gas hood 16, secondary nitrogen inlet duct 17, inlet plate 1701, air inlet 1702, fumarole 18, welding booth 19, discharge pedestal 1901, discharge pedestal resigning mouthful 20, welding bench 21, loading bay 2101, loading bay resigning mouthful 22, mounting plate 23, adjustment spring 24, carrying 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, sensor mounting hole 3004, heating plate mounting hole 31, electricity Heat pipe 32, liquid-collecting cover 3301, liquid-collecting cover outlet tube 34, takes out negative pressure mounting bracket 35, takes out negative pressure temperature sensor 33 Lifting cylinder 36, sealing plate 37, connecting tube 38, connecting plate 39, mounting pin 3901, threaded hole 40, welding booth Installation part 4001, fixed part 4002, stepped hole 41, translation plates 42, folding mounting rod 43, folding guide plate 44, directive wheel 45, carrying and installation arm 46 are opened and closed, carries lifting cylinder 47, lifting leading truck 48, lifting guide pad 49, pan carriage 50, pan carriage guide rail 51, translation panel guide 52, carrying and installation plate 53, translation motor 54, translation Motor mounting rack 55, carry movable stand 56, folding movable stand 57, folding motor mounting rack 58, folding motor 59, Cleaning module 60, oil feeding reservoirs 61, purifying box 62, purifying box air inlet pipe 63, strainer installs case 64, strainer 65, Wind turbine 66, solder paste collecting vessel 67, coil pipe 68, fin.

Specific implementation mode

Fig. 1 ~ 18 are the most preferred embodiments of the utility model, and 1 ~ 18 pair of the utility model is done furtherly below in conjunction with the accompanying drawings It is bright.

A kind of vacuum brazing stove, including welding booth 18, bell 4 and carrying mechanism 2, the lid of bell 4 close in welding booth 18 Side, and between welding booth 18 and bell 4 formed welding chamber, 18 lower part of welding booth be equipped with welding bench 20, welding bench 20 close into Expect that the side at end is heating zone, 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 mounted on bell 4, and 9 bottom of negative pressure module and heating zone are taken out It is encircled into closed negative pressure cavity, protection gas air inlet pipe is provided in welding booth 18 or bell 4.The heating zone energy of this vacuum brazing stove It is enough that tablet is heated, to make 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, to make removal weld The tablet temperature for connecing room 18 is low, that is, avoids tablet and aoxidized, and conveniently handles in time the tablet being welded, and right Be not in cause unqualified since the excessively high mutability of tablet temperature causes tablet in processing procedure to deform in web process The problem of rate increases, tablet is directly contacted with heating zone or cooling zone, and heating and cooling are realized by way of heat transfer, with It is compared using the mode of heating of radiation, substantially increases heating speed, so that tablet is quickly heated up and is cooled down, reduce energy The consumption of amount.

The utility model is described further with reference to specific embodiment, however persons familiar with the art should Solution, is to preferably explain here in connection with the detailed description that attached drawing provides, the structure of the utility model has necessarily had exceeded These embodiments of limit, and for some equivalents or common approach, it is no longer described in detail herein, but still fall within this The protection domain of application.

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 mounted on 1 upside of rack, and carrying mechanism 2 is mounted in the rack 1 of 18 downside of welding booth. Bell 4 is mounted on 18 upside of welding booth, and the upside of welding booth 18 is closed.It takes out negative pressure module 9 to be arranged on bell 4, and takes out The lower end of negative pressure module 9 is stretched into after passing through bell 4 in welding booth 18, 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, to improve speed of welding, can also be arranged 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 It is arranged 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, which is also associated with, has 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 connect with the piston rod rotation of bell cylinder 3, to realize bell 4 It opens and closes automatically.

As shown in Figure 2：Bell 4 includes the bell cover of upside and the bell mounting plate 14 of downside, and bell cover is spacious for downside Mouthful rectangular box body, bell mounting plate 14 is cuboid plate, and bell mounting plate 14 is arranged in 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 mounting plate 14.

In the present embodiment, protection gas is nitrogen, and protection gas air inlet pipe is main nitrogen inlet duct 5, bell mounting 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 respectively provided with there are one guide housing 6, guide housing 6 be arranged at intervals on the upside of the main nitrogen inlet duct 5 of respective side and with main nitrogen The upper end interval of air inlet pipe 5 is arranged, 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 in 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.Gas hood 15, gas hood are each both provided between main nitrogen inlet duct 5 and bell mounting 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 in bell mounting plate 14 and bell cover Between, the downside opening setting of gas hood 15,15 downside of gas hood is fixedly connected with bell mounting plate 14, and 4 downside of bell is provided with Slot hole for gas hood 15 to be connected to welding booth 18, so as to will protect gas and penetrating welding booth 18 in.

14 upside of bell mounting plate 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 to by gas hood 15 with welding booth 18, and purification air inlet pipe 7 and purification escape pipe 8 are arranged in the same of pumping negative pressure module 9 Side keeps tablet temperature relatively low and then extends so as to avoid nitrogen temperature is too low from leading to solder paste liquefaction in welding booth 18 Weld interval of tablet.Purification escape pipe 8 is connected to the inlet end of cleaning module 59, purification escape pipe 8 and cleaning module 59 Inlet end connection avoid solder paste steam from influencing tablet so as to clear up the solder paste in tin cream by thermogenetic solder paste steam Welding.

As shown in Fig. 3 ~ 5：The on both sides of the middle of bell mounting plate 14 is also symmetrically arranged with secondary nitrogen inlet duct 16.Secondary nitrogen into The setting of tracheae 16 is in 14 upside of bell mounting plate, and the outlet side of secondary nitrogen inlet duct 16 is connected to welding booth 18, so as to more Add and uniformly spray into nitrogen into welding booth 18, guarantee the nitrogen in welding booth 18 is completely exhausted out, avoid tablet heat after with Oxygen reacts.Inlet plate 17 is provided on the downside of the middle part of bell mounting 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 being arranged along 17 length direction of inlet plate, stove Every side of lid mounting plate 14 is both provided with two inlet plates 17, and two inlet plates 17 are along the length direction of bell mounting 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 ensure nitrogen Gas uniformly sprays into welding booth 18.The downside of bell mounting 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 mounted in the installing port 1401 of bell mounting 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 of bell mounting plate 14 1401 It is connected to inlet chamber, nitrogen is sprayed into inlet chamber to facilitate.

As shown in Fig. 6 ~ 7：Carrying mechanism 2 includes carrying bar 24 and the elevating mechanism being arranged on the downside of welding booth 18, putting 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 each the both sides of end cap 26 are both provided with carrying port 2601, carry length direction of the bar 24 along welding booth 18 and are 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 It 2601 and stretches out.The lower horizontal of welding booth 18 is provided with carrying and installation arm 45, and carrying and installation arm 45 and carrying bar 24 1 are a pair of Answer, carrying and installation arm 45 is arranged in the downside of carrying bar 24 of respective side, each both ends for carrying bar 24 by mounting plate 22 with The carrying and installation arm 45 of respective side is connected, and the upper end of mounting plate 22 is connected with bar 24 is carried, and lower end and the carrying of mounting plate 22 are pacified It fills arm 45 to be connected, elevating mechanism is mounted in rack 1, and translation mechanism is mounted on elevating mechanism, and open-and-close mechanism is mounted on translation In mechanism, and open-and-close mechanism is connected with two carrying bars 24 simultaneously, to realize folding, the lifting peace of two carrying bars 24 It is mobile to make, facilitate the carrying of tablet.

It is provided with adjustment spring 23 between each one end and mounting plate 22 for carrying bar 24, adjustment spring 23 is set in carrying On bar 24, carries bar 24 and be slidably connected close to one end of adjustment spring 23 and mounting plate 22, adjustment spring 23 is arranged in mounting plate 22 outsides, one end of adjustment spring 23 are supported on mounting plate 22, and the other end is supported on the end for carrying bar 24, to conveniently exist The position adjustment spring 23 that axis is adjusted up carrying bar 24 can also play cushioning effect, avoid the impact generated in handling process Load causes tablet to fall.

26 downside of end cap and the upside interval of welding bench 20 at 18 both ends of welding booth are arranged, 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, one end close to cooling zone is weldering 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 It is slidably fitted with baffle 27, baffle 27 is slidably connected with bar 24 is carried, 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 26 institute of end cap It planar moves, baffle 27 is made always to close carrying port 2601, avoid helium leak, also relieve big to carrying port 2601 Small limitation, and then the setting for the movement locus for carrying bar 24 can be facilitated.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 connect 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 length direction of the polylith coldplate 28 along welding booth 18 is set gradually, and is formed Cooling zone, and cooling zone is arranged close to discharge end.Take out 30 upside of heating plate 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 It is equipped with coldplate resigning mouthful 2801, each carry is arranged at intervals with multiple supporting parts on bar 24, and supporting part is stretched into heating plate and allowed It is held up in position mouth 3001 or coldplate resigning mouthful 2801 and by the tablet lain on heating plate 30 or coldplate 28, enables tablet It is enough integrally placed in coldplate 28 or heating plate 30, avoids tablet is heated from softening, cause both ends to deform, and facilitate pumping 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 It is equipped with temperature sensor 32, to realize the independent control of each heating plate 30, makes heating plate 31 along close to the side of discharge end It is gradually increased to temperature, to gradually be heated to tablet, avoiding heating too fast causes the tin cream to drip.On each coldplate 28 It is connected with water inlet pipe 29, coldplate 28 cools down to the tablet on cooling bench 28 by cooling water, and along close to discharge end The temperature in direction, cooling bench 28 continuously decreases, and to gradually cool down to tablet, avoids the too fast tin cream for leading to solidification that cools down It splits.

Loading bay 21 is provided on 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 Tablet after cooling is carried on discharge pedestal 19 by matched discharge pedestal resigning mouthful 1901, carrying mechanism 2, to make this vacuum Soldering furnace realizes successional welding, need not open bell 4 and discharging and charging can be realized.

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 side 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 causing to hamper to the welding of tablet in welding booth 18 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 Electrothermal tube 31 there are one being respectively mounted in a electrothermal tube mounting hole 3002, so as to ensure homogeneous heating.The middle part of heating plate 30 It is additionally provided with horizontal sensor mounting hole 3003, sensor mounting hole 3003 is disposed 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 mounted on sensor It fills 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 The corner of plate, coldplate 28 is provided with coldplate mounting hole 2804, and the both sides of coldplate 28 are symmetrically arranged with horizontal water inlet Channel 2802, intake tunnel 2802 is arranged along the length direction of coldplate 28, and one end of coldplate 28 is provided with horizontal row Aquaporin 2803, two intake tunnels 2802 are connected to by drainage channel 2803, cold to keep the temperature of entire coldplate 28 uniform But effect is good.The both ends of drainage channel 2803 and intake tunnel 2802 are both provided with interconnecting piece, to facilitate water inlet pipe 29 and go out The connection of water pipe.

As shown in Figure 12 ~ 13：For the setting of welding booth 18 in 1 upside of rack, welding booth 18 passes through welding booth's installation part 40 and machine Frame 1 is fixedly connected.The both sides of welding booth 18 are symmetrically arranged with multiple welding booth's installation parts 40, the downside two of welding booth's installation part 40 End is symmetrically arranged with downwardly projecting fixed part 4001, through-hole is provided on fixed part 4001, welding booth's installation part 40 is by setting The bolt set in 4001 through-hole of fixed part is fixedly connected with rack 1.The both ends of welding booth's installation 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 Dress pin 39 is cylindric, and the lower end of mounting pin 39 is coaxially arranged with threaded hole 3901, and threaded hole 3901 is that setting is being installed The diameter of blind hole on pin 39, 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 installation part 40.3004 sets of the heating plate mounting hole of heating plate 30 It is located at the top of mounting pin 39, 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：It includes taking out negative pressure mounting bracket 34, sealing plate 36, connecting tube 37 and taking out negative pressure to take out negative pressure module 9 Lifting cylinder 35 takes out the upside that negative pressure mounting bracket 34 is mounted on bell mounting plate 14, and it is negative mounted on taking out to take out negative pressure lifting cylinder 35 It presses on mounting bracket 34, the piston rod for taking out negative pressure lifting cylinder 35 is vertically arranged downward, and sealing plate 36 is arranged in bell mounting 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 lifting cylinder Horizontal connecting plate 38 is installed, connecting plate 38 is arranged in the upside of bell mounting plate 14, and connecting tube 37 is set on 35 piston rod It sets between connecting plate 38 and sealing plate 36, connecting tube 37 is slided and is tightly connected with bell mounting plate 14, under connecting tube 37 End is connected to negative pressure cavity, and the upper end of connecting tube 37 is connected with pumping negative tube.

As shown in Figure 15 ~ 16：18 downside of welding booth is arranged at intervals with translation plates 41, and carrying and installation arm 45 is arranged in translation plates Between 41 and welding booth 18, carrying and installation arm 45 is slidably mounted on by mounting base in translation plates 41, translation mechanism and translation plates 41 are connected and translation plates 41 are driven to be translated along the carry direction of tablet.The downside of translation plates 41 is arranged at intervals with horizontal carrying peace The top both sides of loading board 52, carrying and installation plate 52 are symmetrically arranged with translation panel guide 51, translation panel guide 51 and carrying bar 24 Centerline parallel is arranged, and translation plates 41 are slidably mounted on by the way that the translation plates sliding block in downside is arranged on translation panel guide 51, are removed Fortune mounting plate 52 is mounted 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 equipped in 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.It carries lifting cylinder 46 and is horizontally arranged at machine On frame 1, and carry lifting cylinder 46 piston rod towards pan carriage 49 direction be arranged, carry lifting cylinder 46 piston rod with Pan carriage 49 is connected and pan carriage 49 is pushed to be moved along the carry direction of tablet.The both sides of pan carriage 49 are symmetrically arranged with lifting The upside of guide pad 48, lifting guide pad 48 is 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, lifts the downside of leading truck 47 It is rotatablely equipped with lifting directive wheel, the lifting guide part for lifting directive wheel and the lifting guide pad 48 of respective side fits, to Realize the lifting of carrying and installation plate 52.Vertical riser guide is provided in rack 1, liftable mounting plate 52 passes through lifting slider It is slidably mounted on riser guide 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 It shelves 54 to be arranged in the downside of carrying and installation plate 52, translation motor 53 is mounted on translation motor mounting bracket 54, translation motor 53 Output shaft it is horizontally disposed and be arranged in parallel with the carry direction of tablet.It is coaxially installed with translation leading screw in translation motor 53, puts down It moves leading screw to rotate synchronously with translation motor 53, carries movable stand 55 and be slidably mounted on translation motor mounting bracket 54, carry movement It is provided on 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 are arranged with the sliding of 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, Movable stand 56 and folding power plant module are opened and closed, in the present embodiment, folding power plant module is folding motor 58.Open and close motor peace It shelves 57 to be arranged in the downside of carrying and installation plate 52, 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.It opens and closes motor 58 and is mounted on folding motor peace It shelves on 57.Folding movable stand 56 is slidably mounted on folding motor mounting rack 57, is opened and closed and is coaxially pacified on the output shaft of motor 58 Equipped with folding leading screw, opens and closes and be provided on movable stand 56 and open and close the matched clasp nut of leading screw, folding motor 58 passes through silk Thick stick pair of nut drives folding movable stand 56 to be translated along tablet carry direction.The upside of translation plates 41 is provided with mounting rod sliding block, opens It closes mounting rod 42 to be slidably mounted on mounting rod sliding block, folding mounting rod 42 is arranged along the carry direction of tablet, opens and closes movable stand 56 upside is connected with folding mounting rod 42 and drives folding 42 synchronizing moving of 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 Guide part is closed, folding guide part is gradually inside skewed along tablet carry direction, and the both ends of each carrying and installation arm 45 are equal Folding directive wheel 44 is installed, being additionally provided between two carrying and installation arms 45 makes folding directive wheel 44 and open and close guide plate 43 The folding spring that folding guide part fits.Installing arm guide rail is also equipped in 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 by opening and closing sliding block on installing arm guide rail.

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 other side of purifying box 61 It is connected with purifying box escape pipe, wind turbine 65 is provided between purifying box escape pipe and welding booth 18.Coil pipe 67 is arranged in 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 to by circulating pump with one end of coil pipe 67, coil pipe 67 other end is connected to oil feeding reservoirs 60, to realize the cycle of cooling oil.It is additionally provided in purifying box 61 and 67 phase of coil pipe Fin 68 even reduces the temperature of nitrogen so as to faster exchange heat with nitrogen.Purifying box 61 is close to purifying box escape pipe Side be provided with strainer installs case 63, purifying box escape pipe is connected to 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 escape pipe, and defeated again It send to welding booth 18, strainer 64 is used to filter the solder paste after liquefaction, 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 solder paste collecting vessel 66 so as to the liquid after making cooling liquefy.

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；

It is filled with nitrogen to welding booth 18 by main nitrogen inlet duct 5 and secondary nitrogen inlet duct 16, makes nitrogen full of entire weldering Room 18 is connect, and the air in welding booth 18 is completely exhausted out.Electrothermal tube 31 heats heating plate 30 simultaneously, and water inlet pipe 29 is to cooling It is passed through cooling water in plate 28.

2）Tablet is carried in negative pressure cavity by carrying mechanism 2 piecewise, and the tablet in handling process is gradually 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 It carries bar 24 and is moved downward to position close to tablet, and with the loading bay resigning mouthful 2101 on loading bay 21 to just, elevator Structure drives again to be carried bar 24 and moves down and supporting part is made to be located in loading bay resigning mouthful 2101, then open-and-close mechanism band again Two carrying bars 24 are moved to move inward and supporting part is made to be moved on the downside of tablet both ends.Elevating mechanism, which drives, carries bar 24 to moving up It is dynamic, the picking-up of tablet is completed, while the baffle 27 of feed end being made to open feed end, translation mechanism, which drives, carries bar 24 to close The direction of 18 discharge end of welding booth is moved, and tablet is carried in the heating plate 30 in welding booth 18.Carrying mechanism 2 is gradually removed Fortune enters after so that tablet is heated via each heating plate 30 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 made to be closed with the heating plate 30 immediately below it The negative pressure cavity of sealing is surrounded, while taking out negative tube to extract the gas 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 drives sealing plate 36 rise.

3）Carrying mechanism 2 will in negative pressure cavity soldered tablet to discharge end carry, cooling zone to tablet carry 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 descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent The equivalent embodiment of variation.But it is every without departing from the content of the technical scheme of the utility model, the technology according to the utility model is real Any simple modification, equivalent variations and remodeling, still fall within the guarantor of technical solutions of the utility model made by confrontation above example Protect range.

Claims (18)

1. a kind of vacuum brazing stove, including welding booth（18）, bell（4）And carrying mechanism（2）, bell（4）Lid is closed and is being welded 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）It is heating zone, welding bench close to the side of feed end（20）Close to discharge end Side be cooling zone, heating zone close to cooling zone one end on the upside of be provided with take out negative pressure module（9）, take out negative pressure module（9）It can Lifting is mounted 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 in 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 logical 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 side 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）, 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 in 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 carries bar（24）Middle part be arranged in welding booth（18）It is interior, open-and-close mechanism simultaneously with two carrying bars（24）It is connected And its folding is driven, translation mechanism is connected with open-and-close mechanism and it is driven 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）Across carrying port （1601）It is connected with open-and-close mechanism, end cap（26）Bottom and welding bench（20）Interval setting.

10. vacuum brazing stove according to claim 9, it is characterised in that：Each end cap（26）Both ends are symmetrically set It is equipped with baffle mounting groove（2602）, baffle mounting groove（2602）Place plane and carrying bar（24）Central axis, baffle peace Tankage（2602）Inside it is slidably fitted with baffle（27）, baffle（27）With carrying bar（24）It slides and is tightly connected, baffle（27）With The end cap of respective side（26）It matches welding booth（18）End part seal.

11. according to claim 8 ~ 10 any one of them vacuum brazing stove, it is characterised in that：The welding booth（18）Under Side is equipped with and carries bar（24）One-to-one carrying and installation arm（45）, carrying and installation arm（45）Both ends and respective side carrying Bar（24）Both ends are connected, open-and-close mechanism and two carrying and installation arms（45）It is connected.

12. vacuum brazing stove according to claim 8, it is characterised in that：The open-and-close mechanism includes horizontally disposed Open and close guide plate（43）And folding power plant module, open and close guide plate（43）It is arranged in two carrying bars（24）Between, folding is led To plate（43）Both sides be equipped with along close to the gradual inside skewed folding guide part in the direction of discharge end, each carry bar （24）Downside be mounted on and the folding directive wheel that fits of folding guide part（44）, two carrying bars（24）Between be equipped with place In the folding spring of tensional state, folding power plant module and folding guide plate（43）It is connected and drives it along closer or far from discharging It moves in the direction at end.

13. vacuum brazing stove according to claim 8, it is characterised in that：The elevating mechanism includes lifting guide pad （48）And carry lifting cylinder（46）, lift guide pad（48）Upside be provided with along close to the direction of discharge end gradually downward Skewed lifting guide part is equipped with the lifting directive wheel to fit with lifting guide part on the downside of translation mechanism, carries and rise Sending down abnormally ascending cylinder（46）Piston rod with lifting guide pad（48）It is connected and it is pushed to be moved along the direction closer or far from discharge end.

14. vacuum brazing stove according to claim 1, it is characterised in that：The pumping negative pressure module（9）Including sealing plate （36）And take out negative pressure lifting cylinder（35）, sealing plate（36）It is arranged on the upside of heating zone and is arranged in parallel with heating zone, is sealed Plate（36）Bottom and heating zone be encircled into closed negative pressure cavity, negative pressure cavity is connected with pumping negative tube.

15. vacuum brazing stove according to claim 14, it is characterised in that：The sealing plate（36）It is arranged in bell （4）Negative pressure lifting cylinder is taken out in downside（35）It is arranged in bell（4）Negative pressure lifting cylinder is taken out in upside（35）Piston rod pass through company It takes over（37）With sealing plate（36）It is connected, connecting tube（37）Negative pressure cavity is connected to negative tube is taken out.

16. vacuum brazing stove according to claim 1, it is characterised in that：It further include cleaning module（59）, cleaning module （59）Inlet end and outlet side and welding booth（18）Connection.

17. vacuum brazing stove according to claim 16, it is characterised in that：The cleaning module（59）Including purifying box （61）And it is arranged in purifying box（61）Interior coil pipe（67）And strainer（64）, inlet end and outlet side are separately positioned on purifying box （61）Both sides, strainer（64）It is arranged and closes outlet side, coil pipe by near outgassing end（67）The interior coolant liquid filled with cycle, only Change case（61）Outlet side and welding booth（18）Between be provided with wind turbine（65）.

18. vacuum brazing stove according to claim 17, it is characterised in that：The cleaning module（59）It further include setting In purifying box（61）Interior fin（68）.