CN107838516A - A kind of welding mechanism of vacuum brazing stove - Google Patents
A kind of welding mechanism of vacuum brazing stove Download PDFInfo
- Publication number
- CN107838516A CN107838516A CN201711475755.7A CN201711475755A CN107838516A CN 107838516 A CN107838516 A CN 107838516A CN 201711475755 A CN201711475755 A CN 201711475755A CN 107838516 A CN107838516 A CN 107838516A
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- China
- Prior art keywords
- welding
- negative pressure
- bell
- plate
- tablet
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Arc Welding In General (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Tunnel Furnaces (AREA)
Abstract
A kind of welding mechanism of vacuum brazing stove, belongs to vacuum welding technical field.It is characterized in that：Including welding booth（18）And welding booth（18）The bell of upside, bell（4）With welding booth（18）Between be provided with welding chamber, welding booth（18）Bottom is provided with welding bench（20）, welding bench（20）Side close to feed end is heating zone, welding bench（20）Side close to discharge end is cooling zone, and heating zone is provided with the upside of one end of cooling zone 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.The welding mechanism of this vacuum brazing stove can make tablet in negative pressure cavity can rapid welding complete, additionally it is possible to avoid tablet in heating process from being reacted with oxygen.
Description
Technical field
A kind of welding mechanism of vacuum brazing stove, 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）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；
（3）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：Overcome the deficiencies in the prior art, there is provided one kind progressively can be entered to tablet
Row heating, speed of welding is fast and avoids the welding mechanism of the oxidized vacuum brazing stove of tablet.
The technical solution adopted for the present invention to solve the technical problems is：The welding mechanism of the vacuum brazing stove, its feature
It is：Including the bell on the upside of welding booth and welding booth, welding chamber is provided between bell and welding booth, welding booth bottom is set
There is a welding bench, welding bench is heating zone close to the side of feed end, and welding bench is cooling zone close to the side of discharge end, heating zone
It is provided with the upside of one end of cooling zone and takes out negative pressure module, take out that negative pressure module is liftable to be arranged on bell, takes out negative pressure mould
Block bottom is encircled into closed negative pressure cavity with heating zone, and protection gas air inlet pipe is provided with welding booth or bell.
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 described coldplate are symmetrically arranged with intake tunnel, at least one end of coldplate be provided with
The drainage channel of two intake tunnels connection.
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 negative pressure module of taking out includes sealing plate and takes out negative pressure lift cylinder, and sealing plate is arranged on heating
It is be arranged in parallel on the upside of area and with heating zone, bottom and the heating zone of sealing plate are encircled into the negative pressure cavity of closing, and negative pressure cavity is connected with
Take out negative tube.
Preferably, 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, the heating zone of the welding mechanism of this vacuum brazing stove can heat to tablet, so that tablet energy in negative pressure cavity
Enough rapid weldings are completed, cold so as to avoid tablet in heating process from being reacted with oxygen filled with protection gas in welding booth
But area can cool down to tablet, so that the tablet temperature for removing welding booth is low, that is, avoids tablet and be oxidized, and conveniently
The tablet being welded is handled in time, 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.
2nd, polylith heating plate is spliced into heating zone, and polylith coldplate is spliced into cooling zone, same in welding booth so as to make
Shi Rongna polylith tablets, heating zone are heated to polylith tablet, tablet is rapidly achieved welding temperature, improve simultaneously
Speed of welding.
3rd, electric heating tube and temperature sensor are equipped with every piece of heating plate, every piece of heating plate is realized independent temperature
Control, so as to progressively be heated in material handling process to tablet, avoid heating it is too fast cause tablet to deform, also
Avoid heating it is too fast cause tin cream to melt and flow out, cause defective work occur.
4th, intake tunnel and exhalant canal are 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.
5th, cooling zone can be condensed the liquid to be formed and be discharged by liquid-collecting cover drain pipe by liquid-collecting cover.
6th, 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.
7th, 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.
8th, 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.
9th, 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 company
Adapter connects with negative pressure cavity, has both facilitated the installation connection of sealing plate, facilitate negative pressure cavity again takes out negative pressure.
10th, 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.
11st, 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.
12nd, 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 after removal bell.
Fig. 2 is the partial enlarged drawing at A in Fig. 1.
Fig. 3 is the scheme of installation of electric pushrod.
Fig. 4 is the schematic perspective view of welding bench.
Fig. 5 is that the right side of welding bench regards schematic diagram.
Fig. 6 is the vertical view schematic cross-sectional view of heating plate.
Fig. 7 is the vertical view schematic cross-sectional view of coldplate.
Fig. 8 is the main view schematic cross-sectional view of welding booth's installed part.
Fig. 9 is the main view schematic cross-sectional view of mounting pin.
Figure 10 is the schematic perspective view of bell.
Figure 11 is the main view schematic cross-sectional view of bell.
Figure 12 is the partial enlarged drawing at B in Figure 11.
Figure 13 is the main view schematic cross-sectional view of inlet plate.
Figure 14 is the schematic front view for taking out negative pressure module.
Figure 15 is the schematic perspective view of vacuum brazing stove.
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
7th, air inlet pipe 8, purification escape pipe 9 are purified, takes out negative pressure module 10, linking arm 11, swing arm 12, installing arm
13rd, connecting rod 14, bell installing plate 1401, installing port 15, gas hood 16, secondary nitrogen inlet duct 17, inlet plate
1701st, air inlet 1702, fumarole 18, welding booth 19, discharge pedestal 1901, discharge pedestal resigning mouthful 20, welding bench
21st, loading bay 2101, loading bay resigning mouthful 22, installing plate 23, regulation spring 24, carrying bar 25, sealing shroud
26th, end cap 2601, carrying port 2602, baffle plate mounting groove 27, baffle plate 28, coldplate 2801, coldplate resigning mouthful
2802nd, 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, temperature sensor 33, liquid-collecting cover 3301, liquid-collecting cover drain 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, mounting pin 3901, screwed hole 40, welding booth
Installed part 4001, fixed part 4002, shoulder hole 41, translation plates 42, folding mounting rod 43, folding guide plate
44th, folding directive wheel 45, carrying and installation arm 46, carrying lift cylinder 47, lifting leading truck 48, lifting guide pad
49th, 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, filter screen installs case 64, filter screen 65,
Blower fan 66, 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 welding mechanism of vacuum brazing stove, including the bell of welding booth 18 and the upside of welding booth 18, bell 4 and weldering
Connect and welding chamber be provided between room 18, the bottom of welding booth 18 is provided with welding bench 20, welding bench 20 close to the side of feed end for plus
Hot-zone, welding bench 20 are cooling zone close to the side of discharge end, and heating 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, take out the bottom of negative pressure module 9 and heating zone be encircled into it is closed negative
Chamber is pressed, protection gas air inlet pipe is provided with welding booth 18 or bell 4.The heating zone of the welding mechanism of this vacuum brazing stove can be right
Tablet is heated so that tablet in negative pressure cavity can rapid welding complete, filled with protection gas in welding booth 18, so as to
Tablet in heating process is enough avoided to be reacted with oxygen, cooling zone can cool down to tablet, so that removing welding booth
18 tablet temperature is low, that is, avoids tablet and be oxidized, again convenient that the tablet being welded is handled in time, tablet directly with
Heating zone or cooling zone contact, realize heating and cooling by way of heat transfer, compared with using the mode of heating of radiation,
Firing rate is substantially increased, tablet is quickly heated up and is cooled, reduces 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.
Embodiment 1
As shown in Figure 1 and 2：The downside of welding booth 18 is provided with carrying mechanism 2, and welding booth 18 is arranged on the upside of frame 1.Carrying mechanism 2 wraps
Elevating mechanism, translation mechanism and the open-and-close mechanism carried bar 24 and be arranged on the downside of welding booth 18 are included, carries the middle part of bar 24
It is arranged in welding booth 18, 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
Mouth 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 welding booth 18
Both sides, each both ends for carrying bar 24 both pass through the carrying port 2601 of end cap 26 and stretched out.The lower horizontal of welding booth 18 is set
Carrying and installation arm 45 is equipped with, carrying and installation arm 45 corresponds with carrying bar 24, and carrying and installation arm 45 is arranged on removing for respective side
The downside of bar 24 is transported, each both ends for carrying bar 24 are connected by installing plate 22 with the carrying and installation arm 45 of respective side, installing plate
22 upper end is connected with carrying bar 24, and the lower end of installing plate 22 is connected with carrying and installation arm 45, and elevating mechanism is arranged on frame 1
On, translation mechanism is arranged on elevating mechanism, and open-and-close mechanism is arranged on translation mechanism, and open-and-close mechanism is carried with two simultaneously
Bar 24 is connected, it is achieved thereby that the folding of two carrying bars 24, lifting and translation motion, 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 3：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 4：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 5：The bottom of welding booth 18 is provided with liquid-collecting cover 33, the both sides of liquid-collecting cover 33 be by sidepiece to middle part by
Gradually downward skewed, and the middle part both ends of liquid-collecting cover 33 are symmetrically arranged with liquid-collecting cover drain pipe 3301, liquid-collecting cover 33 can will
Cooling zone, which is liquefied, the drop collection to be formed and to be sent out outside welding booth 18, avoids the welding to tablet in welding booth 18 from causing to hamper
Hinder.
As shown in Figure 6：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 7：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 Fig. 8 ~ 9：Welding booth 18 is arranged on the upside of frame 1, and welding booth 18 passes through welding booth's installed part 40 and frame 1
It is fixedly connected.The both sides of welding booth 18 are symmetrically arranged with multiple welding booth's installed parts 40, the downside both ends of welding booth's installed part 40
Downwardly projecting fixed part 4001 is symmetrically arranged with, through hole is provided with fixed part 4001, welding booth's installed part 40 passes through setting
Bolt 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 shoulder hole
4002, the diameter on the top of shoulder hole 4002 is more than the diameter of bottom, is mounted on mounting pin 39 on each shoulder hole 4002, installs
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 mounting pin
Blind hole on 39, the diameter of mounting pin 39 is equal with the diameter on the top of shoulder hole 4002, and shoulder hole is stretched into the lower end of mounting pin 39
It is fixedly connected in 4002 top and by bolt with welding booth's installed part 40.The heating plate mounting hole 3004 of heating plate 30 is arranged
On the top of mounting pin 39, so as to complete the installation of heating plate 30, the coldplate mounting hole 2804 of coldplate 28 is set in installation
The top of pin 39, so as to complete the installation of coldplate 28, convenient disassembly.
As shown in Figure 10：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 Figure 11 ~ 13：The on both sides of the middle of bell installing plate 14 is also symmetrically arranged with secondary nitrogen inlet duct 16.Secondary nitrogen
Air inlet pipe 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
Nitrogen more uniformly is sprayed into welding booth 18, ensures the nitrogen in welding booth 18 being completely exhausted out, after avoiding tablet from heating
Reacted with oxygen.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 is provided with the air inlet 1701 of opening upwards, and air inlet 1701 is the elongated hole set along the length direction of inlet plate 17,
Every side of bell installing plate 14 is provided with two inlet plates 17, and length side of two inlet plates 17 along bell installing plate 14
To being arranged in order, multiple fumaroles 1702 are arranged at intervals with each inlet plate 17 along its length, so as to ensure by
Nitrogen 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
Corresponded with inlet plate 17, the top of inlet plate 17 is arranged in the installing port 1401 of bell installing plate 14, and each air inlet
The air inlet 1701 of plate 17 is encircled into inlet chamber, the outlet of secondary nitrogen inlet duct 16 with the installing port 1401 of bell installing plate 14
End is connected with inlet chamber, and nitrogen is sprayed into inlet chamber so as to convenient.
As shown in figure 14：Taking out negative pressure module 9 includes taking out negative pressure mounting bracket 34, sealing plate 36, connecting tube 37 and 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 15：The present invention also provides a kind of vacuum brazing stove, including carrying mechanism 2 and above-mentioned vacuum welding
The welding mechanism of stove, carrying mechanism 2 are arranged in the frame 1 of the downside of welding booth 18.
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 is filled with protection gas into welding booth 18；
Nitrogen is filled with to welding booth 18 by main nitrogen inlet duct 5 and secondary nitrogen inlet duct 16, nitrogen is full of whole welding booth
18, and the air in welding booth 18 is completely exhausted out.Electrothermal tube 31 heats 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.
Embodiment 2
The difference of embodiment 2 and embodiment 1 is：Supporting part, which is directly installed on, is carried on bar 24, and the both ends of heating plate 30 are set
There is heating plate resigning mouthful 3001, coldplate 28 is provided at both ends with coldplate resigning mouthful 2801, the both ends that supporting part passes through tablet
Support tablet.
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)
- A kind of 1. welding mechanism of vacuum brazing stove, it is characterised in that：Including welding booth（18）And welding booth（18）Upside Bell, bell（4）With welding booth（18）Between be provided with welding chamber, welding booth（18）Bottom is provided with welding bench（20）, welding bench （20）Side close to feed end is heating zone, welding bench（20）Side close to discharge end is cooling zone, and heating zone is close to cold But it is provided with the upside of the one end in area 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.
- 2. the welding mechanism of vacuum brazing stove according to claim 1, it is characterised in that：Described 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）Spell It is connected into cooling zone.
- 3. the welding mechanism of vacuum brazing stove according to claim 2, 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）, sensor Mounting hole（3003）To be arranged on two electrothermal tubes（31）Between blind hole, sensor mounting hole（3003）TEMP is inside installed Device（32）.
- 4. the welding mechanism of vacuum brazing stove according to claim 2, it is characterised in that：Described coldplate（28）Two Side is symmetrically arranged with intake tunnel（2802）, coldplate（28）At least one end be provided with and two intake tunnels（2802）Connection Drainage channel（2803）.
- 5. vacuum brazing stove according to claim 1, it is characterised in that：Described welding booth（18）Downside be provided with collection Liquid cover（33）, liquid-collecting cover（33）Two bottom sides be skewed, liquid-collecting cover by sidepiece to middle part gradually downward（33）Bottom is set There is liquid-collecting cover drain pipe（3301）.
- 6. the welding mechanism of vacuum brazing stove according to claim 1, it is characterised in that：Described protection gas air inlet pipe is 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 symmetrically set It is equipped with secondary nitrogen inlet duct（16）, secondary nitrogen inlet duct（16）With welding booth（18）Connection.
- 7. the welding mechanism of vacuum brazing stove according to claim 6, it is characterised in that：Described bell（4）Bottom two Side is 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 fumarole of connection （1702）, secondary nitrogen inlet duct（16）With air inlet（1701）Connection.
- 8. the welding mechanism of vacuum brazing stove according to claim 1, it is characterised in that：Described takes out negative pressure module（9） Including sealing plate（36）And take out negative pressure lift cylinder（35）, sealing plate（36）It is arranged on the upside of heating zone and parallel with heating zone Set, sealing plate（36）Bottom and heating zone be encircled into the negative pressure cavity of closing, negative pressure cavity, which is connected with, takes out negative tube.
- 9. the welding mechanism of vacuum brazing stove according to claim 8, it is characterised in that：Described sealing plate（36）Set In bell（4）Downside, take out negative pressure lift cylinder（35）It is arranged on bell（4）Upside, take out negative pressure lift cylinder（35）Piston rod Pass through connecting tube（37）With sealing plate（36）It is connected, connecting tube（37）Negative pressure cavity is connected with taking out negative tube.
- 10. the welding mechanism of vacuum brazing stove according to claim 1, it is characterised in that：Also include cleaning module（59）, Cleaning module（59）Inlet end and outlet side and welding booth（18）Connection.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475755.7A CN107838516B (en) | 2017-12-29 | 2017-12-29 | Welding mechanism of vacuum welding furnace |
| DE202018006507.2U DE202018006507U1 (en) | 2017-12-29 | 2018-05-24 | Welding unit of a vacuum welding furnace |
| JP2020536686A JP7175987B2 (en) | 2017-12-29 | 2018-05-24 | Welding Mechanism of Vacuum Welding Furnace |
| DE112018006659.2T DE112018006659B4 (en) | 2017-12-29 | 2018-05-24 | Soldering unit of a vacuum soldering furnace |
| PCT/CN2018/088224 WO2019128065A1 (en) | 2017-12-29 | 2018-05-24 | Welding mechanism of vacuum welding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711475755.7A CN107838516B (en) | 2017-12-29 | 2017-12-29 | Welding mechanism of vacuum welding furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107838516A true CN107838516A (en) | 2018-03-27 |
| CN107838516B CN107838516B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711475755.7A Active CN107838516B (en) | 2017-12-29 | 2017-12-29 | Welding mechanism of vacuum welding furnace |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7175987B2 (en) |
| CN (1) | CN107838516B (en) |
| DE (2) | DE112018006659B4 (en) |
| WO (1) | WO2019128065A1 (en) |
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| WO2019128067A1 (en) * | 2017-12-29 | 2019-07-04 | 山东才聚电子科技有限公司 | Vacuum soldering furnace control system, and method for controlling same |
| WO2019128063A1 (en) * | 2017-12-29 | 2019-07-04 | 山东才聚电子科技有限公司 | Handling mechanism of vacuum brazing furnace |
| WO2019128068A1 (en) * | 2017-12-29 | 2019-07-04 | 山东才聚电子科技有限公司 | Vacuum soldering furnace and soldering process |
| WO2019128065A1 (en) * | 2017-12-29 | 2019-07-04 | 山东才聚电子科技有限公司 | Welding mechanism of vacuum welding furnace |
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| WO2019128068A1 (en) * | 2017-12-29 | 2019-07-04 | 山东才聚电子科技有限公司 | Vacuum soldering furnace and soldering process |
| WO2019128065A1 (en) * | 2017-12-29 | 2019-07-04 | 山东才聚电子科技有限公司 | Welding mechanism of vacuum welding furnace |
| WO2024119603A1 (en) * | 2022-12-06 | 2024-06-13 | 山东才聚电子科技有限公司 | Static vacuum welding furnace |
| US12103098B1 (en) | 2022-12-06 | 2024-10-01 | Shandong Caiju Electronic Technology Co., Ltd | Static vacuum welding furnace |
| CN118060660A (en) * | 2024-04-18 | 2024-05-24 | 江苏安德瑞医疗器械配件有限公司 | Welding device for sampling clamp machining |
| CN118060660B (en) * | 2024-04-18 | 2024-08-06 | 江苏安德瑞医疗器械配件有限公司 | Welding device for sampling clamp machining |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021507813A (en) | 2021-02-25 |
| DE112018006659T5 (en) | 2020-10-15 |
| DE202018006507U1 (en) | 2020-11-04 |
| JP7175987B2 (en) | 2022-11-21 |
| DE112018006659B4 (en) | 2024-09-26 |
| WO2019128065A1 (en) | 2019-07-04 |
| CN107838516B (en) | 2023-10-03 |
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